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master ... 1.8

107 changed files with 5972 additions and 7733 deletions

4
.gitignore vendored
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@ -1,10 +1,6 @@
*.pyc
build/
dist/
.tox/
paramiko.egg-info/
test.log
docs/
!sites/docs
_build
.coverage

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@ -1,32 +1,14 @@
language: python
python:
- "2.5"
- "2.6"
- "2.7"
- "3.2"
- "3.3"
install:
# Self-install for setup.py-driven deps
- pip install -e .
# Dev (doc/test running) requirements
- pip install coveralls # For coveralls.io specifically
- pip install -r dev-requirements.txt
script:
# Main tests, with coverage!
- invoke coverage
# Ensure documentation & invoke pipeline run OK.
# Run 'docs' first since its objects.inv is referred to by 'www'.
# Also force warnings to be errors since most of them tend to be actual
# problems.
- invoke docs -o -W
- invoke www -o -W
script: python test.py
notifications:
irc:
channels: "irc.freenode.org#paramiko"
template:
- "%{repository}@%{branch}: %{message} (%{build_url})"
on_success: change
on_failure: change
use_notice: true
email: false
after_success:
- coveralls

15
Makefile Normal file
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@ -0,0 +1,15 @@
release: docs
python setup.py sdist register upload
docs: paramiko/*
epydoc --no-private -o docs/ paramiko
clean:
rm -rf build dist docs
rm -f MANIFEST *.log demos/*.log
rm -f paramiko/*.pyc
rm -f test.log
rm -rf paramiko.egg-info
test:
python ./test.py

22
NEWS
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@ -9,27 +9,9 @@ Issues noted as "'ssh' #NN" can be found at https://github.com/bitprophet/ssh/.
Issues noted as "Fabric #NN" can be found at https://github.com/fabric/fabric/.
**PLEASE NOTE:** For changes in 1.10.x and newer releases, please see
www.paramiko.org's changelog page, or the source file, sites/www/changelog.rst
Releases
========
v1.9.0 (6th Nov 2012)
---------------------
* #97 (with a little #93): Improve config parsing of `ProxyCommand` directives
and provide a wrapper class to allow subprocess-driven proxy commands to be
used as `sock=` arguments for `SSHClient.connect`.
* #77: Allow `SSHClient.connect()` to take an explicit `sock` parameter
overriding creation of an internal, implicit socket object.
* Thanks in no particular order to Erwin Bolwidt, Oskari Saarenmaa, Steven
Noonan, Vladimir Lazarenko, Lincoln de Sousa, Valentino Volonghi, Olle
Lundberg, and Github user `@acrish` for the various and sundry patches
leading to the above changes.
v1.8.1 (6th Nov 2012)
---------------------
@ -46,8 +28,6 @@ v1.8.1 (6th Nov 2012)
v1.8.0 (3rd Oct 2012)
---------------------
* #17 ('ssh' 28): Fix spurious `NoneType has no attribute 'error'` and similar
exceptions that crop up on interpreter exit.
* 'ssh' 32: Raise a more useful error explaining which `known_hosts` key line was
problematic, when encountering `binascii` issues decoding known host keys.
Thanks to `@thomasvs` for catch & patch.
@ -291,7 +271,7 @@ v1.5 (paras) 02oct05
separation
* demo scripts fixed to have a better chance of loading the host keys
correctly on windows/cygwin
v1.4 (oddish) 17jul05
---------------------
* added SSH-agent support (for posix) from john rochester

20
README
View File

@ -5,17 +5,22 @@ paramiko
:Paramiko: Python SSH module
:Copyright: Copyright (c) 2003-2009 Robey Pointer <robeypointer@gmail.com>
:Copyright: Copyright (c) 2013-2014 Jeff Forcier <jeff@bitprophet.org>
:Copyright: Copyright (c) 2013 Jeff Forcier <jeff@bitprophet.org>
:License: LGPL
:Homepage: https://github.com/paramiko/paramiko/
:API docs: http://docs.paramiko.org
paramiko 1.8.0
==============
Release of MM.YY.DD
What
----
"paramiko" is a combination of the esperanto words for "paranoid" and
"friend". it's a module for python 2.6+ that implements the SSH2 protocol
"friend". it's a module for python 2.5+ that implements the SSH2 protocol
for secure (encrypted and authenticated) connections to remote machines.
unlike SSL (aka TLS), SSH2 protocol does not require hierarchical
certificates signed by a powerful central authority. you may know SSH2 as
@ -34,10 +39,8 @@ that should have come with this archive.
Requirements
------------
- Python 2.6 or better <http://www.python.org/> - this includes Python
3.2 and higher as well.
- python 2.5 or better <http://www.python.org/>
- pycrypto 2.1 or better <https://www.dlitz.net/software/pycrypto/>
- ecdsa 0.9 or better <https://pypi.python.org/pypi/ecdsa>
If you have setuptools, you can build and install paramiko and all its
dependencies with this command (as root)::
@ -125,7 +128,10 @@ Use
---
the demo scripts are probably the best example of how to use this package.
there is also a lot of documentation, generated with Sphinx autodoc, in the doc/ folder.
there is also a lot of documentation, generated with epydoc, in the doc/
folder. point your browser there. seriously, do it. mad props to
epydoc, which actually motivated me to write more documentation than i
ever would have before.
there are also unit tests here::

View File

@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -26,15 +26,12 @@ import os
import select
import socket
import sys
import threading
import time
import traceback
from paramiko.py3compat import input
import paramiko
try:
import interactive
except ImportError:
from . import interactive
import interactive
def agent_auth(transport, username):
@ -49,24 +46,24 @@ def agent_auth(transport, username):
return
for key in agent_keys:
print('Trying ssh-agent key %s' % hexlify(key.get_fingerprint()))
print 'Trying ssh-agent key %s' % hexlify(key.get_fingerprint()),
try:
transport.auth_publickey(username, key)
print('... success!')
print '... success!'
return
except paramiko.SSHException:
print('... nope.')
print '... nope.'
def manual_auth(username, hostname):
default_auth = 'p'
auth = input('Auth by (p)assword, (r)sa key, or (d)ss key? [%s] ' % default_auth)
auth = raw_input('Auth by (p)assword, (r)sa key, or (d)ss key? [%s] ' % default_auth)
if len(auth) == 0:
auth = default_auth
if auth == 'r':
default_path = os.path.join(os.environ['HOME'], '.ssh', 'id_rsa')
path = input('RSA key [%s]: ' % default_path)
path = raw_input('RSA key [%s]: ' % default_path)
if len(path) == 0:
path = default_path
try:
@ -77,7 +74,7 @@ def manual_auth(username, hostname):
t.auth_publickey(username, key)
elif auth == 'd':
default_path = os.path.join(os.environ['HOME'], '.ssh', 'id_dsa')
path = input('DSS key [%s]: ' % default_path)
path = raw_input('DSS key [%s]: ' % default_path)
if len(path) == 0:
path = default_path
try:
@ -100,9 +97,9 @@ if len(sys.argv) > 1:
if hostname.find('@') >= 0:
username, hostname = hostname.split('@')
else:
hostname = input('Hostname: ')
hostname = raw_input('Hostname: ')
if len(hostname) == 0:
print('*** Hostname required.')
print '*** Hostname required.'
sys.exit(1)
port = 22
if hostname.find(':') >= 0:
@ -113,8 +110,8 @@ if hostname.find(':') >= 0:
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((hostname, port))
except Exception as e:
print('*** Connect failed: ' + str(e))
except Exception, e:
print '*** Connect failed: ' + str(e)
traceback.print_exc()
sys.exit(1)
@ -123,7 +120,7 @@ try:
try:
t.start_client()
except paramiko.SSHException:
print('*** SSH negotiation failed.')
print '*** SSH negotiation failed.'
sys.exit(1)
try:
@ -132,25 +129,25 @@ try:
try:
keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
except IOError:
print('*** Unable to open host keys file')
print '*** Unable to open host keys file'
keys = {}
# check server's host key -- this is important.
key = t.get_remote_server_key()
if hostname not in keys:
print('*** WARNING: Unknown host key!')
elif key.get_name() not in keys[hostname]:
print('*** WARNING: Unknown host key!')
if not keys.has_key(hostname):
print '*** WARNING: Unknown host key!'
elif not keys[hostname].has_key(key.get_name()):
print '*** WARNING: Unknown host key!'
elif keys[hostname][key.get_name()] != key:
print('*** WARNING: Host key has changed!!!')
print '*** WARNING: Host key has changed!!!'
sys.exit(1)
else:
print('*** Host key OK.')
print '*** Host key OK.'
# get username
if username == '':
default_username = getpass.getuser()
username = input('Username [%s]: ' % default_username)
username = raw_input('Username [%s]: ' % default_username)
if len(username) == 0:
username = default_username
@ -158,20 +155,21 @@ try:
if not t.is_authenticated():
manual_auth(username, hostname)
if not t.is_authenticated():
print('*** Authentication failed. :(')
print '*** Authentication failed. :('
t.close()
sys.exit(1)
chan = t.open_session()
chan.get_pty()
chan.invoke_shell()
print('*** Here we go!\n')
print '*** Here we go!'
print
interactive.interactive_shell(chan)
chan.close()
t.close()
except Exception as e:
print('*** Caught exception: ' + str(e.__class__) + ': ' + str(e))
except Exception, e:
print '*** Caught exception: ' + str(e.__class__) + ': ' + str(e)
traceback.print_exc()
try:
t.close()

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@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,7 +17,9 @@
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
from __future__ import with_statement
import string
import sys
from binascii import hexlify
@ -26,7 +28,6 @@ from optparse import OptionParser
from paramiko import DSSKey
from paramiko import RSAKey
from paramiko.ssh_exception import SSHException
from paramiko.py3compat import u
usage="""
%prog [-v] [-b bits] -t type [-N new_passphrase] [-f output_keyfile]"""
@ -46,16 +47,16 @@ key_dispatch_table = {
def progress(arg=None):
if not arg:
sys.stdout.write('0%\x08\x08\x08 ')
print '0%\x08\x08\x08',
sys.stdout.flush()
elif arg[0] == 'p':
sys.stdout.write('25%\x08\x08\x08\x08 ')
print '25%\x08\x08\x08\x08',
sys.stdout.flush()
elif arg[0] == 'h':
sys.stdout.write('50%\x08\x08\x08\x08 ')
print '50%\x08\x08\x08\x08',
sys.stdout.flush()
elif arg[0] == 'x':
sys.stdout.write('75%\x08\x08\x08\x08 ')
print '75%\x08\x08\x08\x08',
sys.stdout.flush()
if __name__ == '__main__':
@ -91,8 +92,8 @@ if __name__ == '__main__':
parser.print_help()
sys.exit(0)
for o in list(default_values.keys()):
globals()[o] = getattr(options, o, default_values[o.lower()])
for o in default_values.keys():
globals()[o] = getattr(options, o, default_values[string.lower(o)])
if options.newphrase:
phrase = getattr(options, 'newphrase')
@ -105,7 +106,7 @@ if __name__ == '__main__':
if ktype == 'dsa' and bits > 1024:
raise SSHException("DSA Keys must be 1024 bits")
if ktype not in key_dispatch_table:
if not key_dispatch_table.has_key(ktype):
raise SSHException("Unknown %s algorithm to generate keys pair" % ktype)
# generating private key
@ -120,7 +121,7 @@ if __name__ == '__main__':
f.write(" %s" % comment)
if options.verbose:
print("done.")
print "done."
hash = u(hexlify(pub.get_fingerprint()))
print("Fingerprint: %d %s %s.pub (%s)" % (bits, ":".join([ hash[i:2+i] for i in range(0, len(hash), 2)]), filename, ktype.upper()))
hash = hexlify(pub.get_fingerprint())
print "Fingerprint: %d %s %s.pub (%s)" % (bits, ":".join([ hash[i:2+i] for i in range(0, len(hash), 2)]), filename, string.upper(ktype))

View File

@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -27,7 +27,6 @@ import threading
import traceback
import paramiko
from paramiko.py3compat import b, u, decodebytes
# setup logging
@ -36,17 +35,17 @@ paramiko.util.log_to_file('demo_server.log')
host_key = paramiko.RSAKey(filename='test_rsa.key')
#host_key = paramiko.DSSKey(filename='test_dss.key')
print('Read key: ' + u(hexlify(host_key.get_fingerprint())))
print 'Read key: ' + hexlify(host_key.get_fingerprint())
class Server (paramiko.ServerInterface):
# 'data' is the output of base64.encodestring(str(key))
# (using the "user_rsa_key" files)
data = (b'AAAAB3NzaC1yc2EAAAABIwAAAIEAyO4it3fHlmGZWJaGrfeHOVY7RWO3P9M7hp'
b'fAu7jJ2d7eothvfeuoRFtJwhUmZDluRdFyhFY/hFAh76PJKGAusIqIQKlkJxMC'
b'KDqIexkgHAfID/6mqvmnSJf0b5W8v5h2pI/stOSwTQ+pxVhwJ9ctYDhRSlF0iT'
b'UWT10hcuO4Ks8=')
good_pub_key = paramiko.RSAKey(data=decodebytes(data))
data = 'AAAAB3NzaC1yc2EAAAABIwAAAIEAyO4it3fHlmGZWJaGrfeHOVY7RWO3P9M7hp' + \
'fAu7jJ2d7eothvfeuoRFtJwhUmZDluRdFyhFY/hFAh76PJKGAusIqIQKlkJxMC' + \
'KDqIexkgHAfID/6mqvmnSJf0b5W8v5h2pI/stOSwTQ+pxVhwJ9ctYDhRSlF0iT' + \
'UWT10hcuO4Ks8='
good_pub_key = paramiko.RSAKey(data=base64.decodestring(data))
def __init__(self):
self.event = threading.Event()
@ -62,7 +61,7 @@ class Server (paramiko.ServerInterface):
return paramiko.AUTH_FAILED
def check_auth_publickey(self, username, key):
print('Auth attempt with key: ' + u(hexlify(key.get_fingerprint())))
print 'Auth attempt with key: ' + hexlify(key.get_fingerprint())
if (username == 'robey') and (key == self.good_pub_key):
return paramiko.AUTH_SUCCESSFUL
return paramiko.AUTH_FAILED
@ -84,47 +83,47 @@ try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('', 2200))
except Exception as e:
print('*** Bind failed: ' + str(e))
except Exception, e:
print '*** Bind failed: ' + str(e)
traceback.print_exc()
sys.exit(1)
try:
sock.listen(100)
print('Listening for connection ...')
print 'Listening for connection ...'
client, addr = sock.accept()
except Exception as e:
print('*** Listen/accept failed: ' + str(e))
except Exception, e:
print '*** Listen/accept failed: ' + str(e)
traceback.print_exc()
sys.exit(1)
print('Got a connection!')
print 'Got a connection!'
try:
t = paramiko.Transport(client)
try:
t.load_server_moduli()
except:
print('(Failed to load moduli -- gex will be unsupported.)')
print '(Failed to load moduli -- gex will be unsupported.)'
raise
t.add_server_key(host_key)
server = Server()
try:
t.start_server(server=server)
except paramiko.SSHException:
print('*** SSH negotiation failed.')
except paramiko.SSHException, x:
print '*** SSH negotiation failed.'
sys.exit(1)
# wait for auth
chan = t.accept(20)
if chan is None:
print('*** No channel.')
print '*** No channel.'
sys.exit(1)
print('Authenticated!')
print 'Authenticated!'
server.event.wait(10)
if not server.event.isSet():
print('*** Client never asked for a shell.')
print '*** Client never asked for a shell.'
sys.exit(1)
chan.send('\r\n\r\nWelcome to my dorky little BBS!\r\n\r\n')
@ -136,8 +135,8 @@ try:
chan.send('\r\nI don\'t like you, ' + username + '.\r\n')
chan.close()
except Exception as e:
print('*** Caught exception: ' + str(e.__class__) + ': ' + str(e))
except Exception, e:
print '*** Caught exception: ' + str(e.__class__) + ': ' + str(e)
traceback.print_exc()
try:
t.close()

View File

@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -28,7 +28,6 @@ import sys
import traceback
import paramiko
from paramiko.py3compat import input
# setup logging
@ -41,9 +40,9 @@ if len(sys.argv) > 1:
if hostname.find('@') >= 0:
username, hostname = hostname.split('@')
else:
hostname = input('Hostname: ')
hostname = raw_input('Hostname: ')
if len(hostname) == 0:
print('*** Hostname required.')
print '*** Hostname required.'
sys.exit(1)
port = 22
if hostname.find(':') >= 0:
@ -54,7 +53,7 @@ if hostname.find(':') >= 0:
# get username
if username == '':
default_username = getpass.getuser()
username = input('Username [%s]: ' % default_username)
username = raw_input('Username [%s]: ' % default_username)
if len(username) == 0:
username = default_username
password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
@ -70,13 +69,13 @@ except IOError:
# try ~/ssh/ too, because windows can't have a folder named ~/.ssh/
host_keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
except IOError:
print('*** Unable to open host keys file')
print '*** Unable to open host keys file'
host_keys = {}
if hostname in host_keys:
if host_keys.has_key(hostname):
hostkeytype = host_keys[hostname].keys()[0]
hostkey = host_keys[hostname][hostkeytype]
print('Using host key of type %s' % hostkeytype)
print 'Using host key of type %s' % hostkeytype
# now, connect and use paramiko Transport to negotiate SSH2 across the connection
@ -87,26 +86,22 @@ try:
# dirlist on remote host
dirlist = sftp.listdir('.')
print("Dirlist: %s" % dirlist)
print "Dirlist:", dirlist
# copy this demo onto the server
try:
sftp.mkdir("demo_sftp_folder")
except IOError:
print('(assuming demo_sftp_folder/ already exists)')
with sftp.open('demo_sftp_folder/README', 'w') as f:
f.write('This was created by demo_sftp.py.\n')
with open('demo_sftp.py', 'r') as f:
data = f.read()
print '(assuming demo_sftp_folder/ already exists)'
sftp.open('demo_sftp_folder/README', 'w').write('This was created by demo_sftp.py.\n')
data = open('demo_sftp.py', 'r').read()
sftp.open('demo_sftp_folder/demo_sftp.py', 'w').write(data)
print('created demo_sftp_folder/ on the server')
print 'created demo_sftp_folder/ on the server'
# copy the README back here
with sftp.open('demo_sftp_folder/README', 'r') as f:
data = f.read()
with open('README_demo_sftp', 'w') as f:
f.write(data)
print('copied README back here')
data = sftp.open('demo_sftp_folder/README', 'r').read()
open('README_demo_sftp', 'w').write(data)
print 'copied README back here'
# BETTER: use the get() and put() methods
sftp.put('demo_sftp.py', 'demo_sftp_folder/demo_sftp.py')
@ -114,8 +109,8 @@ try:
t.close()
except Exception as e:
print('*** Caught exception: %s: %s' % (e.__class__, e))
except Exception, e:
print '*** Caught exception: %s: %s' % (e.__class__, e)
traceback.print_exc()
try:
t.close()

View File

@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -25,13 +25,9 @@ import os
import socket
import sys
import traceback
from paramiko.py3compat import input
import paramiko
try:
import interactive
except ImportError:
from . import interactive
import interactive
# setup logging
@ -44,9 +40,9 @@ if len(sys.argv) > 1:
if hostname.find('@') >= 0:
username, hostname = hostname.split('@')
else:
hostname = input('Hostname: ')
hostname = raw_input('Hostname: ')
if len(hostname) == 0:
print('*** Hostname required.')
print '*** Hostname required.'
sys.exit(1)
port = 22
if hostname.find(':') >= 0:
@ -57,7 +53,7 @@ if hostname.find(':') >= 0:
# get username
if username == '':
default_username = getpass.getuser()
username = input('Username [%s]: ' % default_username)
username = raw_input('Username [%s]: ' % default_username)
if len(username) == 0:
username = default_username
password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
@ -67,18 +63,19 @@ password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
try:
client = paramiko.SSHClient()
client.load_system_host_keys()
client.set_missing_host_key_policy(paramiko.WarningPolicy())
print('*** Connecting...')
client.set_missing_host_key_policy(paramiko.WarningPolicy)
print '*** Connecting...'
client.connect(hostname, port, username, password)
chan = client.invoke_shell()
print(repr(client.get_transport()))
print('*** Here we go!\n')
print repr(client.get_transport())
print '*** Here we go!'
print
interactive.interactive_shell(chan)
chan.close()
client.close()
except Exception as e:
print('*** Caught exception: %s: %s' % (e.__class__, e))
except Exception, e:
print '*** Caught exception: %s: %s' % (e.__class__, e)
traceback.print_exc()
try:
client.close()

View File

@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -30,11 +30,7 @@ import getpass
import os
import socket
import select
try:
import SocketServer
except ImportError:
import socketserver as SocketServer
import SocketServer
import sys
from optparse import OptionParser
@ -58,7 +54,7 @@ class Handler (SocketServer.BaseRequestHandler):
chan = self.ssh_transport.open_channel('direct-tcpip',
(self.chain_host, self.chain_port),
self.request.getpeername())
except Exception as e:
except Exception, e:
verbose('Incoming request to %s:%d failed: %s' % (self.chain_host,
self.chain_port,
repr(e)))
@ -82,11 +78,9 @@ class Handler (SocketServer.BaseRequestHandler):
if len(data) == 0:
break
self.request.send(data)
peername = self.request.getpeername()
chan.close()
self.request.close()
verbose('Tunnel closed from %r' % (peername,))
verbose('Tunnel closed from %r' % (self.request.getpeername(),))
def forward_tunnel(local_port, remote_host, remote_port, transport):
@ -102,7 +96,7 @@ def forward_tunnel(local_port, remote_host, remote_port, transport):
def verbose(s):
if g_verbose:
print(s)
print s
HELP = """\
@ -169,8 +163,8 @@ def main():
try:
client.connect(server[0], server[1], username=options.user, key_filename=options.keyfile,
look_for_keys=options.look_for_keys, password=password)
except Exception as e:
print('*** Failed to connect to %s:%d: %r' % (server[0], server[1], e))
except Exception, e:
print '*** Failed to connect to %s:%d: %r' % (server[0], server[1], e)
sys.exit(1)
verbose('Now forwarding port %d to %s:%d ...' % (options.port, remote[0], remote[1]))
@ -178,7 +172,7 @@ def main():
try:
forward_tunnel(options.port, remote[0], remote[1], client.get_transport())
except KeyboardInterrupt:
print('C-c: Port forwarding stopped.')
print 'C-c: Port forwarding stopped.'
sys.exit(0)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -19,7 +19,6 @@
import socket
import sys
from paramiko.py3compat import u
# windows does not have termios...
try:
@ -50,9 +49,9 @@ def posix_shell(chan):
r, w, e = select.select([chan, sys.stdin], [], [])
if chan in r:
try:
x = u(chan.recv(1024))
x = chan.recv(1024)
if len(x) == 0:
sys.stdout.write('\r\n*** EOF\r\n')
print '\r\n*** EOF\r\n',
break
sys.stdout.write(x)
sys.stdout.flush()

View File

@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -46,7 +46,7 @@ def handler(chan, host, port):
sock = socket.socket()
try:
sock.connect((host, port))
except Exception as e:
except Exception, e:
verbose('Forwarding request to %s:%d failed: %r' % (host, port, e))
return
@ -82,7 +82,7 @@ def reverse_forward_tunnel(server_port, remote_host, remote_port, transport):
def verbose(s):
if g_verbose:
print(s)
print s
HELP = """\
@ -150,8 +150,8 @@ def main():
try:
client.connect(server[0], server[1], username=options.user, key_filename=options.keyfile,
look_for_keys=options.look_for_keys, password=password)
except Exception as e:
print('*** Failed to connect to %s:%d: %r' % (server[0], server[1], e))
except Exception, e:
print '*** Failed to connect to %s:%d: %r' % (server[0], server[1], e)
sys.exit(1)
verbose('Now forwarding remote port %d to %s:%d ...' % (options.port, remote[0], remote[1]))
@ -159,7 +159,7 @@ def main():
try:
reverse_forward_tunnel(options.port, remote[0], remote[1], client.get_transport())
except KeyboardInterrupt:
print('C-c: Port forwarding stopped.')
print 'C-c: Port forwarding stopped.'
sys.exit(0)

View File

@ -1,10 +0,0 @@
# Older junk
tox>=1.4,<1.5
# For newer tasks like building Sphinx docs.
# NOTE: Requires Python >=2.6
invoke>=0.7.0
invocations>=0.5.0
sphinx>=1.1.3
alabaster>=0.6.0
releases>=0.5.2
wheel==0.23.0

13
fabfile.py vendored Normal file
View File

@ -0,0 +1,13 @@
from fabric.api import task, sudo, env
from fabric.contrib.project import rsync_project
@task
def upload_docs():
target = "/var/www/paramiko.org"
staging = "/tmp/paramiko_docs"
sudo("mkdir -p %s" % staging)
sudo("chown -R %s %s" % (env.user, staging))
sudo("rm -rf %s/*" % target)
rsync_project(local_dir='docs/', remote_dir=staging, delete=True)
sudo("cp -R %s/* %s/" % (staging, target))

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -16,53 +16,89 @@
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
I{Paramiko} (a combination of the esperanto words for "paranoid" and "friend")
is a module for python 2.5 or greater that implements the SSH2 protocol for
secure (encrypted and authenticated) connections to remote machines. Unlike
SSL (aka TLS), the SSH2 protocol does not require hierarchical certificates
signed by a powerful central authority. You may know SSH2 as the protocol that
replaced C{telnet} and C{rsh} for secure access to remote shells, but the
protocol also includes the ability to open arbitrary channels to remote
services across an encrypted tunnel. (This is how C{sftp} works, for example.)
The high-level client API starts with creation of an L{SSHClient} object.
For more direct control, pass a socket (or socket-like object) to a
L{Transport}, and use L{start_server <Transport.start_server>} or
L{start_client <Transport.start_client>} to negoatite
with the remote host as either a server or client. As a client, you are
responsible for authenticating using a password or private key, and checking
the server's host key. I{(Key signature and verification is done by paramiko,
but you will need to provide private keys and check that the content of a
public key matches what you expected to see.)} As a server, you are
responsible for deciding which users, passwords, and keys to allow, and what
kind of channels to allow.
Once you have finished, either side may request flow-controlled L{Channel}s to
the other side, which are python objects that act like sockets, but send and
receive data over the encrypted session.
Paramiko is written entirely in python (no C or platform-dependent code) and is
released under the GNU Lesser General Public License (LGPL).
Website: U{https://github.com/paramiko/paramiko/}
"""
import sys
if sys.version_info < (2, 6):
raise RuntimeError('You need Python 2.6+ for this module.')
if sys.version_info < (2, 5):
raise RuntimeError('You need python 2.5+ for this module.')
__author__ = "Jeff Forcier <jeff@bitprophet.org>"
__version__ = "1.14.0"
__version_info__ = tuple([ int(d) for d in __version__.split(".") ])
__version__ = "1.8.1"
__license__ = "GNU Lesser General Public License (LGPL)"
from paramiko.transport import SecurityOptions, Transport
from paramiko.client import SSHClient, MissingHostKeyPolicy, AutoAddPolicy, RejectPolicy, WarningPolicy
from paramiko.auth_handler import AuthHandler
from paramiko.channel import Channel, ChannelFile
from paramiko.ssh_exception import SSHException, PasswordRequiredException, \
from transport import SecurityOptions, Transport
from client import SSHClient, MissingHostKeyPolicy, AutoAddPolicy, RejectPolicy, WarningPolicy
from auth_handler import AuthHandler
from channel import Channel, ChannelFile
from ssh_exception import SSHException, PasswordRequiredException, \
BadAuthenticationType, ChannelException, BadHostKeyException, \
AuthenticationException, ProxyCommandFailure
from paramiko.server import ServerInterface, SubsystemHandler, InteractiveQuery
from paramiko.rsakey import RSAKey
from paramiko.dsskey import DSSKey
from paramiko.ecdsakey import ECDSAKey
from paramiko.sftp import SFTPError, BaseSFTP
from paramiko.sftp_client import SFTP, SFTPClient
from paramiko.sftp_server import SFTPServer
from paramiko.sftp_attr import SFTPAttributes
from paramiko.sftp_handle import SFTPHandle
from paramiko.sftp_si import SFTPServerInterface
from paramiko.sftp_file import SFTPFile
from paramiko.message import Message
from paramiko.packet import Packetizer
from paramiko.file import BufferedFile
from paramiko.agent import Agent, AgentKey
from paramiko.pkey import PKey
from paramiko.hostkeys import HostKeys
from paramiko.config import SSHConfig
from paramiko.proxy import ProxyCommand
AuthenticationException
from server import ServerInterface, SubsystemHandler, InteractiveQuery
from rsakey import RSAKey
from dsskey import DSSKey
from sftp import SFTPError, BaseSFTP
from sftp_client import SFTP, SFTPClient
from sftp_server import SFTPServer
from sftp_attr import SFTPAttributes
from sftp_handle import SFTPHandle
from sftp_si import SFTPServerInterface
from sftp_file import SFTPFile
from message import Message
from packet import Packetizer
from file import BufferedFile
from agent import Agent, AgentKey
from pkey import PKey
from hostkeys import HostKeys
from config import SSHConfig
from paramiko.common import AUTH_SUCCESSFUL, AUTH_PARTIALLY_SUCCESSFUL, AUTH_FAILED, \
OPEN_SUCCEEDED, OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED, OPEN_FAILED_CONNECT_FAILED, \
OPEN_FAILED_UNKNOWN_CHANNEL_TYPE, OPEN_FAILED_RESOURCE_SHORTAGE
# fix module names for epydoc
for c in locals().values():
if issubclass(type(c), type) or type(c).__name__ == 'classobj':
# classobj for exceptions :/
c.__module__ = __name__
del c
from paramiko.sftp import SFTP_OK, SFTP_EOF, SFTP_NO_SUCH_FILE, SFTP_PERMISSION_DENIED, SFTP_FAILURE, \
SFTP_BAD_MESSAGE, SFTP_NO_CONNECTION, SFTP_CONNECTION_LOST, SFTP_OP_UNSUPPORTED
from common import AUTH_SUCCESSFUL, AUTH_PARTIALLY_SUCCESSFUL, AUTH_FAILED, \
OPEN_SUCCEEDED, OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED, OPEN_FAILED_CONNECT_FAILED, \
OPEN_FAILED_UNKNOWN_CHANNEL_TYPE, OPEN_FAILED_RESOURCE_SHORTAGE
from paramiko.common import io_sleep
from sftp import SFTP_OK, SFTP_EOF, SFTP_NO_SUCH_FILE, SFTP_PERMISSION_DENIED, SFTP_FAILURE, \
SFTP_BAD_MESSAGE, SFTP_NO_CONNECTION, SFTP_CONNECTION_LOST, SFTP_OP_UNSUPPORTED
from common import io_sleep
__all__ = [ 'Transport',
'SSHClient',
@ -83,8 +119,6 @@ __all__ = [ 'Transport',
'BadAuthenticationType',
'ChannelException',
'BadHostKeyException',
'ProxyCommand',
'ProxyCommandFailure',
'SFTP',
'SFTPFile',
'SFTPHandle',

View File

@ -1,278 +0,0 @@
"""
Windows API functions implemented as ctypes functions and classes as found
in jaraco.windows (2.10).
If you encounter issues with this module, please consider reporting the issues
in jaraco.windows and asking the author to port the fixes back here.
"""
import ctypes
import ctypes.wintypes
from paramiko.py3compat import u
try:
import builtins
except ImportError:
import __builtin__ as builtins
try:
USHORT = ctypes.wintypes.USHORT
except AttributeError:
USHORT = ctypes.c_ushort
######################
# jaraco.windows.error
def format_system_message(errno):
"""
Call FormatMessage with a system error number to retrieve
the descriptive error message.
"""
# first some flags used by FormatMessageW
ALLOCATE_BUFFER = 0x100
ARGUMENT_ARRAY = 0x2000
FROM_HMODULE = 0x800
FROM_STRING = 0x400
FROM_SYSTEM = 0x1000
IGNORE_INSERTS = 0x200
# Let FormatMessageW allocate the buffer (we'll free it below)
# Also, let it know we want a system error message.
flags = ALLOCATE_BUFFER | FROM_SYSTEM
source = None
message_id = errno
language_id = 0
result_buffer = ctypes.wintypes.LPWSTR()
buffer_size = 0
arguments = None
format_bytes = ctypes.windll.kernel32.FormatMessageW(
flags,
source,
message_id,
language_id,
ctypes.byref(result_buffer),
buffer_size,
arguments,
)
# note the following will cause an infinite loop if GetLastError
# repeatedly returns an error that cannot be formatted, although
# this should not happen.
handle_nonzero_success(format_bytes)
message = result_buffer.value
ctypes.windll.kernel32.LocalFree(result_buffer)
return message
class WindowsError(builtins.WindowsError):
"more info about errors at http://msdn.microsoft.com/en-us/library/ms681381(VS.85).aspx"
def __init__(self, value=None):
if value is None:
value = ctypes.windll.kernel32.GetLastError()
strerror = format_system_message(value)
super(WindowsError, self).__init__(value, strerror)
@property
def message(self):
return self.strerror
@property
def code(self):
return self.winerror
def __str__(self):
return self.message
def __repr__(self):
return '{self.__class__.__name__}({self.winerror})'.format(**vars())
def handle_nonzero_success(result):
if result == 0:
raise WindowsError()
CreateFileMapping = ctypes.windll.kernel32.CreateFileMappingW
CreateFileMapping.argtypes = [
ctypes.wintypes.HANDLE,
ctypes.c_void_p,
ctypes.wintypes.DWORD,
ctypes.wintypes.DWORD,
ctypes.wintypes.DWORD,
ctypes.wintypes.LPWSTR,
]
CreateFileMapping.restype = ctypes.wintypes.HANDLE
MapViewOfFile = ctypes.windll.kernel32.MapViewOfFile
MapViewOfFile.restype = ctypes.wintypes.HANDLE
class MemoryMap(object):
"""
A memory map object which can have security attributes overrideden.
"""
def __init__(self, name, length, security_attributes=None):
self.name = name
self.length = length
self.security_attributes = security_attributes
self.pos = 0
def __enter__(self):
p_SA = (
ctypes.byref(self.security_attributes)
if self.security_attributes else None
)
INVALID_HANDLE_VALUE = -1
PAGE_READWRITE = 0x4
FILE_MAP_WRITE = 0x2
filemap = ctypes.windll.kernel32.CreateFileMappingW(
INVALID_HANDLE_VALUE, p_SA, PAGE_READWRITE, 0, self.length,
u(self.name))
handle_nonzero_success(filemap)
if filemap == INVALID_HANDLE_VALUE:
raise Exception("Failed to create file mapping")
self.filemap = filemap
self.view = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0)
return self
def seek(self, pos):
self.pos = pos
def write(self, msg):
n = len(msg)
if self.pos + n >= self.length: # A little safety.
raise ValueError("Refusing to write %d bytes" % n)
ctypes.windll.kernel32.RtlMoveMemory(self.view + self.pos, msg, n)
self.pos += n
def read(self, n):
"""
Read n bytes from mapped view.
"""
out = ctypes.create_string_buffer(n)
ctypes.windll.kernel32.RtlMoveMemory(out, self.view + self.pos, n)
self.pos += n
return out.raw
def __exit__(self, exc_type, exc_val, tb):
ctypes.windll.kernel32.UnmapViewOfFile(self.view)
ctypes.windll.kernel32.CloseHandle(self.filemap)
#########################
# jaraco.windows.security
class TokenInformationClass:
TokenUser = 1
class TOKEN_USER(ctypes.Structure):
num = 1
_fields_ = [
('SID', ctypes.c_void_p),
('ATTRIBUTES', ctypes.wintypes.DWORD),
]
class SECURITY_DESCRIPTOR(ctypes.Structure):
"""
typedef struct _SECURITY_DESCRIPTOR
{
UCHAR Revision;
UCHAR Sbz1;
SECURITY_DESCRIPTOR_CONTROL Control;
PSID Owner;
PSID Group;
PACL Sacl;
PACL Dacl;
} SECURITY_DESCRIPTOR;
"""
SECURITY_DESCRIPTOR_CONTROL = USHORT
REVISION = 1
_fields_ = [
('Revision', ctypes.c_ubyte),
('Sbz1', ctypes.c_ubyte),
('Control', SECURITY_DESCRIPTOR_CONTROL),
('Owner', ctypes.c_void_p),
('Group', ctypes.c_void_p),
('Sacl', ctypes.c_void_p),
('Dacl', ctypes.c_void_p),
]
class SECURITY_ATTRIBUTES(ctypes.Structure):
"""
typedef struct _SECURITY_ATTRIBUTES {
DWORD nLength;
LPVOID lpSecurityDescriptor;
BOOL bInheritHandle;
} SECURITY_ATTRIBUTES;
"""
_fields_ = [
('nLength', ctypes.wintypes.DWORD),
('lpSecurityDescriptor', ctypes.c_void_p),
('bInheritHandle', ctypes.wintypes.BOOL),
]
def __init__(self, *args, **kwargs):
super(SECURITY_ATTRIBUTES, self).__init__(*args, **kwargs)
self.nLength = ctypes.sizeof(SECURITY_ATTRIBUTES)
def _get_descriptor(self):
return self._descriptor
def _set_descriptor(self, descriptor):
self._descriptor = descriptor
self.lpSecurityDescriptor = ctypes.addressof(descriptor)
descriptor = property(_get_descriptor, _set_descriptor)
def GetTokenInformation(token, information_class):
"""
Given a token, get the token information for it.
"""
data_size = ctypes.wintypes.DWORD()
ctypes.windll.advapi32.GetTokenInformation(token, information_class.num,
0, 0, ctypes.byref(data_size))
data = ctypes.create_string_buffer(data_size.value)
handle_nonzero_success(ctypes.windll.advapi32.GetTokenInformation(token,
information_class.num,
ctypes.byref(data), ctypes.sizeof(data),
ctypes.byref(data_size)))
return ctypes.cast(data, ctypes.POINTER(TOKEN_USER)).contents
class TokenAccess:
TOKEN_QUERY = 0x8
def OpenProcessToken(proc_handle, access):
result = ctypes.wintypes.HANDLE()
proc_handle = ctypes.wintypes.HANDLE(proc_handle)
handle_nonzero_success(ctypes.windll.advapi32.OpenProcessToken(
proc_handle, access, ctypes.byref(result)))
return result
def get_current_user():
"""
Return a TOKEN_USER for the owner of this process.
"""
process = OpenProcessToken(
ctypes.windll.kernel32.GetCurrentProcess(),
TokenAccess.TOKEN_QUERY,
)
return GetTokenInformation(process, TOKEN_USER)
def get_security_attributes_for_user(user=None):
"""
Return a SECURITY_ATTRIBUTES structure with the SID set to the
specified user (uses current user if none is specified).
"""
if user is None:
user = get_current_user()
assert isinstance(user, TOKEN_USER), "user must be TOKEN_USER instance"
SD = SECURITY_DESCRIPTOR()
SA = SECURITY_ATTRIBUTES()
# by attaching the actual security descriptor, it will be garbage-
# collected with the security attributes
SA.descriptor = SD
SA.bInheritHandle = 1
ctypes.windll.advapi32.InitializeSecurityDescriptor(ctypes.byref(SD),
SECURITY_DESCRIPTOR.REVISION)
ctypes.windll.advapi32.SetSecurityDescriptorOwner(ctypes.byref(SD),
user.SID, 0)
return SA

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,7 +17,7 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
SSH Agent interface
SSH Agent interface for Unix clients.
"""
import os
@ -29,21 +29,28 @@ import time
import tempfile
import stat
from select import select
from paramiko.common import asbytes, io_sleep
from paramiko.py3compat import byte_chr
from paramiko.ssh_exception import SSHException
from paramiko.message import Message
from paramiko.pkey import PKey
from paramiko.channel import Channel
from paramiko.common import io_sleep
from paramiko.util import retry_on_signal
cSSH2_AGENTC_REQUEST_IDENTITIES = byte_chr(11)
SSH2_AGENT_IDENTITIES_ANSWER = 12
cSSH2_AGENTC_SIGN_REQUEST = byte_chr(13)
SSH2_AGENT_SIGN_RESPONSE = 14
SSH2_AGENTC_REQUEST_IDENTITIES, SSH2_AGENT_IDENTITIES_ANSWER, \
SSH2_AGENTC_SIGN_REQUEST, SSH2_AGENT_SIGN_RESPONSE = range(11, 15)
class AgentSSH(object):
"""
Client interface for using private keys from an SSH agent running on the
local machine. If an SSH agent is running, this class can be used to
connect to it and retreive L{PKey} objects which can be used when
attempting to authenticate to remote SSH servers.
Because the SSH agent protocol uses environment variables and unix-domain
sockets, this probably doesn't work on Windows. It does work on most
posix platforms though (Linux and MacOS X, for example).
"""
def __init__(self):
self._conn = None
self._keys = ()
@ -54,20 +61,19 @@ class AgentSSH(object):
no SSH agent was running (or it couldn't be contacted), an empty list
will be returned.
:return:
a tuple of `.AgentKey` objects representing keys available on the
SSH agent
@return: a list of keys available on the SSH agent
@rtype: tuple of L{AgentKey}
"""
return self._keys
def _connect(self, conn):
self._conn = conn
ptype, result = self._send_message(cSSH2_AGENTC_REQUEST_IDENTITIES)
ptype, result = self._send_message(chr(SSH2_AGENTC_REQUEST_IDENTITIES))
if ptype != SSH2_AGENT_IDENTITIES_ANSWER:
raise SSHException('could not get keys from ssh-agent')
keys = []
for i in range(result.get_int()):
keys.append(AgentKey(self, result.get_binary()))
keys.append(AgentKey(self, result.get_string()))
result.get_string()
self._keys = tuple(keys)
@ -77,7 +83,7 @@ class AgentSSH(object):
self._keys = ()
def _send_message(self, msg):
msg = asbytes(msg)
msg = str(msg)
self._conn.send(struct.pack('>I', len(msg)) + msg)
l = self._read_all(4)
msg = Message(self._read_all(struct.unpack('>I', l)[0]))
@ -94,11 +100,8 @@ class AgentSSH(object):
result += extra
return result
class AgentProxyThread(threading.Thread):
"""
Class in charge of communication between two channels.
"""
""" Class in charge of communication between two chan """
def __init__(self, agent):
threading.Thread.__init__(self, target=self.run)
self._agent = agent
@ -106,7 +109,7 @@ class AgentProxyThread(threading.Thread):
def run(self):
try:
(r, addr) = self.get_connection()
(r,addr) = self.get_connection()
self.__inr = r
self.__addr = addr
self._agent.connect()
@ -127,23 +130,15 @@ class AgentProxyThread(threading.Thread):
if len(data) != 0:
self.__inr.send(data)
else:
self._close()
break
elif self.__inr == fd:
data = self.__inr.recv(512)
if len(data) != 0:
self._agent._conn.send(data)
else:
self._close()
break
time.sleep(io_sleep)
def _close(self):
self._exit = True
self.__inr.close()
self._agent._conn.close()
class AgentLocalProxy(AgentProxyThread):
"""
Class to be used when wanting to ask a local SSH Agent being
@ -153,20 +148,18 @@ class AgentLocalProxy(AgentProxyThread):
AgentProxyThread.__init__(self, agent)
def get_connection(self):
"""
Return a pair of socket object and string address.
May block!
""" Return a pair of socket object and string address
May Block !
"""
conn = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
try:
conn.bind(self._agent._get_filename())
conn.listen(1)
(r, addr) = conn.accept()
return r, addr
(r,addr) = conn.accept()
return (r, addr)
except:
raise
return None
class AgentRemoteProxy(AgentProxyThread):
"""
@ -177,20 +170,22 @@ class AgentRemoteProxy(AgentProxyThread):
self.__chan = chan
def get_connection(self):
return self.__chan, None
"""
Class to be used when wanting to ask a local SSH Agent being
asked from a remote fake agent (so use a unix socket for ex.)
"""
return (self.__chan, None)
class AgentClientProxy(object):
"""
Class proxying request as a client:
#. client ask for a request_forward_agent()
#. server creates a proxy and a fake SSH Agent
#. server ask for establishing a connection when needed,
-> client ask for a request_forward_agent()
-> server creates a proxy and a fake SSH Agent
-> server ask for establishing a connection when needed,
calling the forward_agent_handler at client side.
#. the forward_agent_handler launch a thread for connecting
-> the forward_agent_handler launch a thread for connecting
the remote fake agent and the local agent
#. Communication occurs ...
-> Communication occurs ...
"""
def __init__(self, chanRemote):
self._conn = None
@ -203,7 +198,7 @@ class AgentClientProxy(object):
def connect(self):
"""
Method automatically called by ``AgentProxyThread.run``.
Method automatically called by the run() method of the AgentProxyThread
"""
if ('SSH_AUTH_SOCK' in os.environ) and (sys.platform != 'win32'):
conn = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
@ -213,7 +208,7 @@ class AgentClientProxy(object):
# probably a dangling env var: the ssh agent is gone
return
elif sys.platform == 'win32':
import paramiko.win_pageant as win_pageant
import win_pageant
if win_pageant.can_talk_to_agent():
conn = win_pageant.PageantConnection()
else:
@ -234,12 +229,11 @@ class AgentClientProxy(object):
if self._conn is not None:
self._conn.close()
class AgentServerProxy(AgentSSH):
"""
:param .Transport t: Transport used for SSH Agent communication forwarding
@param t : transport used for the Forward for SSH Agent communication
:raises SSHException: mostly if we lost the agent
@raise SSHException: mostly if we lost the agent
"""
def __init__(self, t):
AgentSSH.__init__(self)
@ -254,11 +248,11 @@ class AgentServerProxy(AgentSSH):
self.close()
def connect(self):
conn_sock = self.__t.open_forward_agent_channel()
if conn_sock is None:
raise SSHException('lost ssh-agent')
conn_sock.set_name('auth-agent')
self._connect(conn_sock)
conn_sock = self.__t.open_forward_agent_channel()
if conn_sock is None:
raise SSHException('lost ssh-agent')
conn_sock.set_name('auth-agent')
self._connect(conn_sock)
def close(self):
"""
@ -275,15 +269,16 @@ class AgentServerProxy(AgentSSH):
"""
Helper for the environnement under unix
:return:
a dict containing the ``SSH_AUTH_SOCK`` environnement variables
@return: the SSH_AUTH_SOCK Environnement variables
@rtype: dict
"""
return {'SSH_AUTH_SOCK': self._get_filename()}
env = {}
env['SSH_AUTH_SOCK'] = self._get_filename()
return env
def _get_filename(self):
return self._file
class AgentRequestHandler(object):
def __init__(self, chanClient):
self._conn = None
@ -301,22 +296,27 @@ class AgentRequestHandler(object):
for p in self.__clientProxys:
p.close()
class Agent(AgentSSH):
"""
Client interface for using private keys from an SSH agent running on the
local machine. If an SSH agent is running, this class can be used to
connect to it and retreive `.PKey` objects which can be used when
connect to it and retreive L{PKey} objects which can be used when
attempting to authenticate to remote SSH servers.
Upon initialization, a session with the local machine's SSH agent is
opened, if one is running. If no agent is running, initialization will
succeed, but `get_keys` will return an empty tuple.
:raises SSHException:
if an SSH agent is found, but speaks an incompatible protocol
Because the SSH agent protocol uses environment variables and unix-domain
sockets, this probably doesn't work on Windows. It does work on most
posix platforms though (Linux and MacOS X, for example).
"""
def __init__(self):
"""
Open a session with the local machine's SSH agent, if one is running.
If no agent is running, initialization will succeed, but L{get_keys}
will return an empty tuple.
@raise SSHException: if an SSH agent is found, but speaks an
incompatible protocol
"""
AgentSSH.__init__(self)
if ('SSH_AUTH_SOCK' in os.environ) and (sys.platform != 'win32'):
@ -327,7 +327,7 @@ class Agent(AgentSSH):
# probably a dangling env var: the ssh agent is gone
return
elif sys.platform == 'win32':
from . import win_pageant
import win_pageant
if win_pageant.can_talk_to_agent():
conn = win_pageant.PageantConnection()
else:
@ -343,34 +343,31 @@ class Agent(AgentSSH):
"""
self._close()
class AgentKey(PKey):
"""
Private key held in a local SSH agent. This type of key can be used for
authenticating to a remote server (signing). Most other key operations
work as expected.
"""
def __init__(self, agent, blob):
self.agent = agent
self.blob = blob
self.name = Message(blob).get_text()
def asbytes(self):
return self.blob
self.name = Message(blob).get_string()
def __str__(self):
return self.asbytes()
return self.blob
def get_name(self):
return self.name
def sign_ssh_data(self, data):
def sign_ssh_data(self, rng, data):
msg = Message()
msg.add_byte(cSSH2_AGENTC_SIGN_REQUEST)
msg.add_byte(chr(SSH2_AGENTC_SIGN_REQUEST))
msg.add_string(self.blob)
msg.add_string(data)
msg.add_int(0)
ptype, result = self.agent._send_message(msg)
if ptype != SSH2_AGENT_SIGN_RESPONSE:
raise SSHException('key cannot be used for signing')
return result.get_binary()
return result.get_string()

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,21 +17,18 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
`.AuthHandler`
L{AuthHandler}
"""
import threading
import weakref
from paramiko.common import cMSG_SERVICE_REQUEST, cMSG_DISCONNECT, \
DISCONNECT_SERVICE_NOT_AVAILABLE, DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE, \
cMSG_USERAUTH_REQUEST, cMSG_SERVICE_ACCEPT, DEBUG, AUTH_SUCCESSFUL, INFO, \
cMSG_USERAUTH_SUCCESS, cMSG_USERAUTH_FAILURE, AUTH_PARTIALLY_SUCCESSFUL, \
cMSG_USERAUTH_INFO_REQUEST, WARNING, AUTH_FAILED, cMSG_USERAUTH_PK_OK, \
cMSG_USERAUTH_INFO_RESPONSE, MSG_SERVICE_REQUEST, MSG_SERVICE_ACCEPT, \
MSG_USERAUTH_REQUEST, MSG_USERAUTH_SUCCESS, MSG_USERAUTH_FAILURE, \
MSG_USERAUTH_BANNER, MSG_USERAUTH_INFO_REQUEST, MSG_USERAUTH_INFO_RESPONSE
# this helps freezing utils
import encodings.utf_8
from paramiko.common import *
from paramiko import util
from paramiko.message import Message
from paramiko.py3compat import bytestring
from paramiko.ssh_exception import SSHException, AuthenticationException, \
BadAuthenticationType, PartialAuthentication
from paramiko.server import InteractiveQuery
@ -48,7 +45,6 @@ class AuthHandler (object):
self.authenticated = False
self.auth_event = None
self.auth_method = ''
self.banner = None
self.password = None
self.private_key = None
self.interactive_handler = None
@ -117,17 +113,19 @@ class AuthHandler (object):
if self.auth_event is not None:
self.auth_event.set()
### internals...
def _request_auth(self):
m = Message()
m.add_byte(cMSG_SERVICE_REQUEST)
m.add_byte(chr(MSG_SERVICE_REQUEST))
m.add_string('ssh-userauth')
self.transport._send_message(m)
def _disconnect_service_not_available(self):
m = Message()
m.add_byte(cMSG_DISCONNECT)
m.add_byte(chr(MSG_DISCONNECT))
m.add_int(DISCONNECT_SERVICE_NOT_AVAILABLE)
m.add_string('Service not available')
m.add_string('en')
@ -136,7 +134,7 @@ class AuthHandler (object):
def _disconnect_no_more_auth(self):
m = Message()
m.add_byte(cMSG_DISCONNECT)
m.add_byte(chr(MSG_DISCONNECT))
m.add_int(DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE)
m.add_string('No more auth methods available')
m.add_string('en')
@ -146,14 +144,14 @@ class AuthHandler (object):
def _get_session_blob(self, key, service, username):
m = Message()
m.add_string(self.transport.session_id)
m.add_byte(cMSG_USERAUTH_REQUEST)
m.add_byte(chr(MSG_USERAUTH_REQUEST))
m.add_string(username)
m.add_string(service)
m.add_string('publickey')
m.add_boolean(True)
m.add_boolean(1)
m.add_string(key.get_name())
m.add_string(key)
return m.asbytes()
m.add_string(str(key))
return str(m)
def wait_for_response(self, event):
while True:
@ -169,7 +167,7 @@ class AuthHandler (object):
e = self.transport.get_exception()
if e is None:
e = AuthenticationException('Authentication failed.')
# this is horrible. Python Exception isn't yet descended from
# this is horrible. python Exception isn't yet descended from
# object, so type(e) won't work. :(
if issubclass(e.__class__, PartialAuthentication):
return e.allowed_types
@ -177,11 +175,11 @@ class AuthHandler (object):
return []
def _parse_service_request(self, m):
service = m.get_text()
service = m.get_string()
if self.transport.server_mode and (service == 'ssh-userauth'):
# accepted
m = Message()
m.add_byte(cMSG_SERVICE_ACCEPT)
m.add_byte(chr(MSG_SERVICE_ACCEPT))
m.add_string(service)
self.transport._send_message(m)
return
@ -189,25 +187,27 @@ class AuthHandler (object):
self._disconnect_service_not_available()
def _parse_service_accept(self, m):
service = m.get_text()
service = m.get_string()
if service == 'ssh-userauth':
self.transport._log(DEBUG, 'userauth is OK')
m = Message()
m.add_byte(cMSG_USERAUTH_REQUEST)
m.add_byte(chr(MSG_USERAUTH_REQUEST))
m.add_string(self.username)
m.add_string('ssh-connection')
m.add_string(self.auth_method)
if self.auth_method == 'password':
m.add_boolean(False)
password = bytestring(self.password)
password = self.password
if isinstance(password, unicode):
password = password.encode('UTF-8')
m.add_string(password)
elif self.auth_method == 'publickey':
m.add_boolean(True)
m.add_string(self.private_key.get_name())
m.add_string(self.private_key)
m.add_string(str(self.private_key))
blob = self._get_session_blob(self.private_key, 'ssh-connection', self.username)
sig = self.private_key.sign_ssh_data(blob)
m.add_string(sig)
sig = self.private_key.sign_ssh_data(self.transport.rng, blob)
m.add_string(str(sig))
elif self.auth_method == 'keyboard-interactive':
m.add_string('')
m.add_string(self.submethods)
@ -224,16 +224,16 @@ class AuthHandler (object):
m = Message()
if result == AUTH_SUCCESSFUL:
self.transport._log(INFO, 'Auth granted (%s).' % method)
m.add_byte(cMSG_USERAUTH_SUCCESS)
m.add_byte(chr(MSG_USERAUTH_SUCCESS))
self.authenticated = True
else:
self.transport._log(INFO, 'Auth rejected (%s).' % method)
m.add_byte(cMSG_USERAUTH_FAILURE)
m.add_byte(chr(MSG_USERAUTH_FAILURE))
m.add_string(self.transport.server_object.get_allowed_auths(username))
if result == AUTH_PARTIALLY_SUCCESSFUL:
m.add_boolean(True)
m.add_boolean(1)
else:
m.add_boolean(False)
m.add_boolean(0)
self.auth_fail_count += 1
self.transport._send_message(m)
if self.auth_fail_count >= 10:
@ -244,10 +244,10 @@ class AuthHandler (object):
def _interactive_query(self, q):
# make interactive query instead of response
m = Message()
m.add_byte(cMSG_USERAUTH_INFO_REQUEST)
m.add_byte(chr(MSG_USERAUTH_INFO_REQUEST))
m.add_string(q.name)
m.add_string(q.instructions)
m.add_string(bytes())
m.add_string('')
m.add_int(len(q.prompts))
for p in q.prompts:
m.add_string(p[0])
@ -258,17 +258,17 @@ class AuthHandler (object):
if not self.transport.server_mode:
# er, uh... what?
m = Message()
m.add_byte(cMSG_USERAUTH_FAILURE)
m.add_byte(chr(MSG_USERAUTH_FAILURE))
m.add_string('none')
m.add_boolean(False)
m.add_boolean(0)
self.transport._send_message(m)
return
if self.authenticated:
# ignore
return
username = m.get_text()
service = m.get_text()
method = m.get_text()
username = m.get_string()
service = m.get_string()
method = m.get_string()
self.transport._log(DEBUG, 'Auth request (type=%s) service=%s, username=%s' % (method, service, username))
if service != 'ssh-connection':
self._disconnect_service_not_available()
@ -283,7 +283,7 @@ class AuthHandler (object):
result = self.transport.server_object.check_auth_none(username)
elif method == 'password':
changereq = m.get_boolean()
password = m.get_binary()
password = m.get_string()
try:
password = password.decode('UTF-8')
except UnicodeError:
@ -294,7 +294,7 @@ class AuthHandler (object):
# always treated as failure, since we don't support changing passwords, but collect
# the list of valid auth types from the callback anyway
self.transport._log(DEBUG, 'Auth request to change passwords (rejected)')
newpassword = m.get_binary()
newpassword = m.get_string()
try:
newpassword = newpassword.decode('UTF-8', 'replace')
except UnicodeError:
@ -304,11 +304,11 @@ class AuthHandler (object):
result = self.transport.server_object.check_auth_password(username, password)
elif method == 'publickey':
sig_attached = m.get_boolean()
keytype = m.get_text()
keyblob = m.get_binary()
keytype = m.get_string()
keyblob = m.get_string()
try:
key = self.transport._key_info[keytype](Message(keyblob))
except SSHException as e:
except SSHException, e:
self.transport._log(INFO, 'Auth rejected: public key: %s' % str(e))
key = None
except:
@ -325,12 +325,12 @@ class AuthHandler (object):
# client wants to know if this key is acceptable, before it
# signs anything... send special "ok" message
m = Message()
m.add_byte(cMSG_USERAUTH_PK_OK)
m.add_byte(chr(MSG_USERAUTH_PK_OK))
m.add_string(keytype)
m.add_string(keyblob)
self.transport._send_message(m)
return
sig = Message(m.get_binary())
sig = Message(m.get_string())
blob = self._get_session_blob(key, service, username)
if not key.verify_ssh_sig(blob, sig):
self.transport._log(INFO, 'Auth rejected: invalid signature')
@ -352,7 +352,7 @@ class AuthHandler (object):
self.transport._log(INFO, 'Authentication (%s) successful!' % self.auth_method)
self.authenticated = True
self.transport._auth_trigger()
if self.auth_event is not None:
if self.auth_event != None:
self.auth_event.set()
def _parse_userauth_failure(self, m):
@ -370,30 +370,29 @@ class AuthHandler (object):
self.transport._log(INFO, 'Authentication (%s) failed.' % self.auth_method)
self.authenticated = False
self.username = None
if self.auth_event is not None:
if self.auth_event != None:
self.auth_event.set()
def _parse_userauth_banner(self, m):
banner = m.get_string()
self.banner = banner
lang = m.get_string()
self.transport._log(INFO, 'Auth banner: %s' % banner)
self.transport._log(INFO, 'Auth banner: ' + banner)
# who cares.
def _parse_userauth_info_request(self, m):
if self.auth_method != 'keyboard-interactive':
raise SSHException('Illegal info request from server')
title = m.get_text()
instructions = m.get_text()
m.get_binary() # lang
title = m.get_string()
instructions = m.get_string()
m.get_string() # lang
prompts = m.get_int()
prompt_list = []
for i in range(prompts):
prompt_list.append((m.get_text(), m.get_boolean()))
prompt_list.append((m.get_string(), m.get_boolean()))
response_list = self.interactive_handler(title, instructions, prompt_list)
m = Message()
m.add_byte(cMSG_USERAUTH_INFO_RESPONSE)
m.add_byte(chr(MSG_USERAUTH_INFO_RESPONSE))
m.add_int(len(response_list))
for r in response_list:
m.add_string(r)
@ -405,13 +404,14 @@ class AuthHandler (object):
n = m.get_int()
responses = []
for i in range(n):
responses.append(m.get_text())
responses.append(m.get_string())
result = self.transport.server_object.check_auth_interactive_response(responses)
if isinstance(type(result), InteractiveQuery):
# make interactive query instead of response
self._interactive_query(result)
return
self._send_auth_result(self.auth_username, 'keyboard-interactive', result)
_handler_table = {
MSG_SERVICE_REQUEST: _parse_service_request,
@ -423,3 +423,4 @@ class AuthHandler (object):
MSG_USERAUTH_INFO_REQUEST: _parse_userauth_info_request,
MSG_USERAUTH_INFO_RESPONSE: _parse_userauth_info_response,
}

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -15,10 +15,9 @@
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
from paramiko.common import max_byte, zero_byte
from paramiko.py3compat import b, byte_ord, byte_chr, long
import paramiko.util as util
import util
class BERException (Exception):
@ -30,15 +29,12 @@ class BER(object):
Robey's tiny little attempt at a BER decoder.
"""
def __init__(self, content=bytes()):
self.content = b(content)
def __init__(self, content=''):
self.content = content
self.idx = 0
def asbytes(self):
return self.content
def __str__(self):
return self.asbytes()
return self.content
def __repr__(self):
return 'BER(\'' + repr(self.content) + '\')'
@ -49,13 +45,13 @@ class BER(object):
def decode_next(self):
if self.idx >= len(self.content):
return None
ident = byte_ord(self.content[self.idx])
ident = ord(self.content[self.idx])
self.idx += 1
if (ident & 31) == 31:
# identifier > 30
ident = 0
while self.idx < len(self.content):
t = byte_ord(self.content[self.idx])
t = ord(self.content[self.idx])
self.idx += 1
ident = (ident << 7) | (t & 0x7f)
if not (t & 0x80):
@ -63,7 +59,7 @@ class BER(object):
if self.idx >= len(self.content):
return None
# now fetch length
size = byte_ord(self.content[self.idx])
size = ord(self.content[self.idx])
self.idx += 1
if size & 0x80:
# more complimicated...
@ -71,12 +67,12 @@ class BER(object):
t = size & 0x7f
if self.idx + t > len(self.content):
return None
size = util.inflate_long(self.content[self.idx: self.idx + t], True)
size = util.inflate_long(self.content[self.idx : self.idx + t], True)
self.idx += t
if self.idx + size > len(self.content):
# can't fit
return None
data = self.content[self.idx: self.idx + size]
data = self.content[self.idx : self.idx + size]
self.idx += size
# now switch on id
if ident == 0x30:
@ -91,9 +87,9 @@ class BER(object):
def decode_sequence(data):
out = []
ber = BER(data)
b = BER(data)
while True:
x = ber.decode_next()
x = b.decode_next()
if x is None:
break
out.append(x)
@ -102,20 +98,20 @@ class BER(object):
def encode_tlv(self, ident, val):
# no need to support ident > 31 here
self.content += byte_chr(ident)
self.content += chr(ident)
if len(val) > 0x7f:
lenstr = util.deflate_long(len(val))
self.content += byte_chr(0x80 + len(lenstr)) + lenstr
self.content += chr(0x80 + len(lenstr)) + lenstr
else:
self.content += byte_chr(len(val))
self.content += chr(len(val))
self.content += val
def encode(self, x):
if type(x) is bool:
if x:
self.encode_tlv(1, max_byte)
self.encode_tlv(1, '\xff')
else:
self.encode_tlv(1, zero_byte)
self.encode_tlv(1, '\x00')
elif (type(x) is int) or (type(x) is long):
self.encode_tlv(2, util.deflate_long(x))
elif type(x) is str:
@ -126,8 +122,8 @@ class BER(object):
raise BERException('Unknown type for encoding: %s' % repr(type(x)))
def encode_sequence(data):
ber = BER()
b = BER()
for item in data:
ber.encode(item)
return ber.asbytes()
b.encode(item)
return str(b)
encode_sequence = staticmethod(encode_sequence)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,7 +17,7 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Attempt to generalize the "feeder" part of a `.Channel`: an object which can be
Attempt to generalize the "feeder" part of a Channel: an object which can be
read from and closed, but is reading from a buffer fed by another thread. The
read operations are blocking and can have a timeout set.
"""
@ -25,12 +25,11 @@ read operations are blocking and can have a timeout set.
import array
import threading
import time
from paramiko.py3compat import PY2, b
class PipeTimeout (IOError):
"""
Indicates that a timeout was reached on a read from a `.BufferedPipe`.
Indicates that a timeout was reached on a read from a L{BufferedPipe}.
"""
pass
@ -39,7 +38,7 @@ class BufferedPipe (object):
"""
A buffer that obeys normal read (with timeout) & close semantics for a
file or socket, but is fed data from another thread. This is used by
`.Channel`.
L{Channel}.
"""
def __init__(self):
@ -49,26 +48,14 @@ class BufferedPipe (object):
self._buffer = array.array('B')
self._closed = False
if PY2:
def _buffer_frombytes(self, data):
self._buffer.fromstring(data)
def _buffer_tobytes(self, limit=None):
return self._buffer[:limit].tostring()
else:
def _buffer_frombytes(self, data):
self._buffer.frombytes(data)
def _buffer_tobytes(self, limit=None):
return self._buffer[:limit].tobytes()
def set_event(self, event):
"""
Set an event on this buffer. When data is ready to be read (or the
buffer has been closed), the event will be set. When no data is
ready, the event will be cleared.
:param threading.Event event: the event to set/clear
@param event: the event to set/clear
@type event: Event
"""
self._event = event
if len(self._buffer) > 0:
@ -81,13 +68,14 @@ class BufferedPipe (object):
Feed new data into this pipe. This method is assumed to be called
from a separate thread, so synchronization is done.
:param data: the data to add, as a `str`
@param data: the data to add
@type data: str
"""
self._lock.acquire()
try:
if self._event is not None:
self._event.set()
self._buffer_frombytes(b(data))
self._buffer.fromstring(data)
self._cv.notifyAll()
finally:
self._lock.release()
@ -95,12 +83,12 @@ class BufferedPipe (object):
def read_ready(self):
"""
Returns true if data is buffered and ready to be read from this
feeder. A ``False`` result does not mean that the feeder has closed;
feeder. A C{False} result does not mean that the feeder has closed;
it means you may need to wait before more data arrives.
:return:
``True`` if a `read` call would immediately return at least one
byte; ``False`` otherwise.
@return: C{True} if a L{read} call would immediately return at least
one byte; C{False} otherwise.
@rtype: bool
"""
self._lock.acquire()
try:
@ -114,24 +102,26 @@ class BufferedPipe (object):
"""
Read data from the pipe. The return value is a string representing
the data received. The maximum amount of data to be received at once
is specified by ``nbytes``. If a string of length zero is returned,
is specified by C{nbytes}. If a string of length zero is returned,
the pipe has been closed.
The optional ``timeout`` argument can be a nonnegative float expressing
seconds, or ``None`` for no timeout. If a float is given, a
`.PipeTimeout` will be raised if the timeout period value has elapsed
before any data arrives.
The optional C{timeout} argument can be a nonnegative float expressing
seconds, or C{None} for no timeout. If a float is given, a
C{PipeTimeout} will be raised if the timeout period value has
elapsed before any data arrives.
:param int nbytes: maximum number of bytes to read
:param float timeout:
maximum seconds to wait (or ``None``, the default, to wait forever)
:return: the read data, as a `str`
@param nbytes: maximum number of bytes to read
@type nbytes: int
@param timeout: maximum seconds to wait (or C{None}, the default, to
wait forever)
@type timeout: float
@return: data
@rtype: str
:raises PipeTimeout:
if a timeout was specified and no data was ready before that
timeout
@raise PipeTimeout: if a timeout was specified and no data was ready
before that timeout
"""
out = bytes()
out = ''
self._lock.acquire()
try:
if len(self._buffer) == 0:
@ -152,12 +142,12 @@ class BufferedPipe (object):
# something's in the buffer and we have the lock!
if len(self._buffer) <= nbytes:
out = self._buffer_tobytes()
out = self._buffer.tostring()
del self._buffer[:]
if (self._event is not None) and not self._closed:
self._event.clear()
else:
out = self._buffer_tobytes(nbytes)
out = self._buffer[:nbytes].tostring()
del self._buffer[:nbytes]
finally:
self._lock.release()
@ -168,13 +158,12 @@ class BufferedPipe (object):
"""
Clear out the buffer and return all data that was in it.
:return:
any data that was in the buffer prior to clearing it out, as a
`str`
@return: any data that was in the buffer prior to clearing it out
@rtype: str
"""
self._lock.acquire()
try:
out = self._buffer_tobytes()
out = self._buffer.tostring()
del self._buffer[:]
if (self._event is not None) and not self._closed:
self._event.clear()
@ -184,7 +173,7 @@ class BufferedPipe (object):
def close(self):
"""
Close this pipe object. Future calls to `read` after the buffer
Close this pipe object. Future calls to L{read} after the buffer
has been emptied will return immediately with an empty string.
"""
self._lock.acquire()
@ -200,10 +189,12 @@ class BufferedPipe (object):
"""
Return the number of bytes buffered.
:return: number (`int`) of bytes buffered
@return: number of bytes bufferes
@rtype: int
"""
self._lock.acquire()
try:
return len(self._buffer)
finally:
self._lock.release()

File diff suppressed because it is too large Load Diff

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,7 +17,7 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
SSH client & key policies
L{SSHClient}.
"""
from binascii import hexlify
@ -27,11 +27,9 @@ import socket
import warnings
from paramiko.agent import Agent
from paramiko.common import DEBUG
from paramiko.config import SSH_PORT
from paramiko.common import *
from paramiko.dsskey import DSSKey
from paramiko.hostkeys import HostKeys
from paramiko.py3compat import string_types
from paramiko.resource import ResourceManager
from paramiko.rsakey import RSAKey
from paramiko.ssh_exception import SSHException, BadHostKeyException
@ -39,10 +37,69 @@ from paramiko.transport import Transport
from paramiko.util import retry_on_signal
SSH_PORT = 22
class MissingHostKeyPolicy (object):
"""
Interface for defining the policy that L{SSHClient} should use when the
SSH server's hostname is not in either the system host keys or the
application's keys. Pre-made classes implement policies for automatically
adding the key to the application's L{HostKeys} object (L{AutoAddPolicy}),
and for automatically rejecting the key (L{RejectPolicy}).
This function may be used to ask the user to verify the key, for example.
"""
def missing_host_key(self, client, hostname, key):
"""
Called when an L{SSHClient} receives a server key for a server that
isn't in either the system or local L{HostKeys} object. To accept
the key, simply return. To reject, raised an exception (which will
be passed to the calling application).
"""
pass
class AutoAddPolicy (MissingHostKeyPolicy):
"""
Policy for automatically adding the hostname and new host key to the
local L{HostKeys} object, and saving it. This is used by L{SSHClient}.
"""
def missing_host_key(self, client, hostname, key):
client._host_keys.add(hostname, key.get_name(), key)
if client._host_keys_filename is not None:
client.save_host_keys(client._host_keys_filename)
client._log(DEBUG, 'Adding %s host key for %s: %s' %
(key.get_name(), hostname, hexlify(key.get_fingerprint())))
class RejectPolicy (MissingHostKeyPolicy):
"""
Policy for automatically rejecting the unknown hostname & key. This is
used by L{SSHClient}.
"""
def missing_host_key(self, client, hostname, key):
client._log(DEBUG, 'Rejecting %s host key for %s: %s' %
(key.get_name(), hostname, hexlify(key.get_fingerprint())))
raise SSHException('Server %r not found in known_hosts' % hostname)
class WarningPolicy (MissingHostKeyPolicy):
"""
Policy for logging a python-style warning for an unknown host key, but
accepting it. This is used by L{SSHClient}.
"""
def missing_host_key(self, client, hostname, key):
warnings.warn('Unknown %s host key for %s: %s' %
(key.get_name(), hostname, hexlify(key.get_fingerprint())))
class SSHClient (object):
"""
A high-level representation of a session with an SSH server. This class
wraps `.Transport`, `.Channel`, and `.SFTPClient` to take care of most
wraps L{Transport}, L{Channel}, and L{SFTPClient} to take care of most
aspects of authenticating and opening channels. A typical use case is::
client = SSHClient()
@ -54,7 +111,7 @@ class SSHClient (object):
checking. The default mechanism is to try to use local key files or an
SSH agent (if one is running).
.. versionadded:: 1.6
@since: 1.6
"""
def __init__(self):
@ -72,21 +129,22 @@ class SSHClient (object):
def load_system_host_keys(self, filename=None):
"""
Load host keys from a system (read-only) file. Host keys read with
this method will not be saved back by `save_host_keys`.
this method will not be saved back by L{save_host_keys}.
This method can be called multiple times. Each new set of host keys
will be merged with the existing set (new replacing old if there are
conflicts).
If ``filename`` is left as ``None``, an attempt will be made to read
If C{filename} is left as C{None}, an attempt will be made to read
keys from the user's local "known hosts" file, as used by OpenSSH,
and no exception will be raised if the file can't be read. This is
probably only useful on posix.
:param str filename: the filename to read, or ``None``
@param filename: the filename to read, or C{None}
@type filename: str
:raises IOError:
if a filename was provided and the file could not be read
@raise IOError: if a filename was provided and the file could not be
read
"""
if filename is None:
# try the user's .ssh key file, and mask exceptions
@ -101,18 +159,19 @@ class SSHClient (object):
def load_host_keys(self, filename):
"""
Load host keys from a local host-key file. Host keys read with this
method will be checked after keys loaded via `load_system_host_keys`,
but will be saved back by `save_host_keys` (so they can be modified).
The missing host key policy `.AutoAddPolicy` adds keys to this set and
method will be checked I{after} keys loaded via L{load_system_host_keys},
but will be saved back by L{save_host_keys} (so they can be modified).
The missing host key policy L{AutoAddPolicy} adds keys to this set and
saves them, when connecting to a previously-unknown server.
This method can be called multiple times. Each new set of host keys
will be merged with the existing set (new replacing old if there are
conflicts). When automatically saving, the last hostname is used.
:param str filename: the filename to read
@param filename: the filename to read
@type filename: str
:raises IOError: if the filename could not be read
@raise IOError: if the filename could not be read
"""
self._host_keys_filename = filename
self._host_keys.load(filename)
@ -120,121 +179,122 @@ class SSHClient (object):
def save_host_keys(self, filename):
"""
Save the host keys back to a file. Only the host keys loaded with
`load_host_keys` (plus any added directly) will be saved -- not any
host keys loaded with `load_system_host_keys`.
L{load_host_keys} (plus any added directly) will be saved -- not any
host keys loaded with L{load_system_host_keys}.
:param str filename: the filename to save to
@param filename: the filename to save to
@type filename: str
:raises IOError: if the file could not be written
@raise IOError: if the file could not be written
"""
# update local host keys from file (in case other SSH clients
# have written to the known_hosts file meanwhile.
if self._host_keys_filename is not None:
self.load_host_keys(self._host_keys_filename)
with open(filename, 'w') as f:
for hostname, keys in self._host_keys.items():
for keytype, key in keys.items():
f.write('%s %s %s\n' % (hostname, keytype, key.get_base64()))
f = open(filename, 'w')
f.write('# SSH host keys collected by paramiko\n')
for hostname, keys in self._host_keys.iteritems():
for keytype, key in keys.iteritems():
f.write('%s %s %s\n' % (hostname, keytype, key.get_base64()))
f.close()
def get_host_keys(self):
"""
Get the local `.HostKeys` object. This can be used to examine the
Get the local L{HostKeys} object. This can be used to examine the
local host keys or change them.
:return: the local host keys as a `.HostKeys` object.
@return: the local host keys
@rtype: L{HostKeys}
"""
return self._host_keys
def set_log_channel(self, name):
"""
Set the channel for logging. The default is ``"paramiko.transport"``
Set the channel for logging. The default is C{"paramiko.transport"}
but it can be set to anything you want.
:param str name: new channel name for logging
@param name: new channel name for logging
@type name: str
"""
self._log_channel = name
def set_missing_host_key_policy(self, policy):
"""
Set the policy to use when connecting to a server that doesn't have a
host key in either the system or local `.HostKeys` objects. The
default policy is to reject all unknown servers (using `.RejectPolicy`).
You may substitute `.AutoAddPolicy` or write your own policy class.
host key in either the system or local L{HostKeys} objects. The
default policy is to reject all unknown servers (using L{RejectPolicy}).
You may substitute L{AutoAddPolicy} or write your own policy class.
:param .MissingHostKeyPolicy policy:
the policy to use when receiving a host key from a
@param policy: the policy to use when receiving a host key from a
previously-unknown server
@type policy: L{MissingHostKeyPolicy}
"""
self._policy = policy
def connect(self, hostname, port=SSH_PORT, username=None, password=None, pkey=None,
key_filename=None, timeout=None, allow_agent=True, look_for_keys=True,
compress=False, sock=None):
compress=False):
"""
Connect to an SSH server and authenticate to it. The server's host key
is checked against the system host keys (see `load_system_host_keys`)
and any local host keys (`load_host_keys`). If the server's hostname
is checked against the system host keys (see L{load_system_host_keys})
and any local host keys (L{load_host_keys}). If the server's hostname
is not found in either set of host keys, the missing host key policy
is used (see `set_missing_host_key_policy`). The default policy is
to reject the key and raise an `.SSHException`.
is used (see L{set_missing_host_key_policy}). The default policy is
to reject the key and raise an L{SSHException}.
Authentication is attempted in the following order of priority:
- The ``pkey`` or ``key_filename`` passed in (if any)
- The C{pkey} or C{key_filename} passed in (if any)
- Any key we can find through an SSH agent
- Any "id_rsa" or "id_dsa" key discoverable in ``~/.ssh/``
- Any "id_rsa" or "id_dsa" key discoverable in C{~/.ssh/}
- Plain username/password auth, if a password was given
If a private key requires a password to unlock it, and a password is
passed in, that password will be used to attempt to unlock the key.
:param str hostname: the server to connect to
:param int port: the server port to connect to
:param str username:
the username to authenticate as (defaults to the current local
username)
:param str password:
a password to use for authentication or for unlocking a private key
:param .PKey pkey: an optional private key to use for authentication
:param str key_filename:
the filename, or list of filenames, of optional private key(s) to
try for authentication
:param float timeout: an optional timeout (in seconds) for the TCP connect
:param bool allow_agent: set to False to disable connecting to the SSH agent
:param bool look_for_keys:
set to False to disable searching for discoverable private key
files in ``~/.ssh/``
:param bool compress: set to True to turn on compression
:param socket sock:
an open socket or socket-like object (such as a `.Channel`) to use
for communication to the target host
@param hostname: the server to connect to
@type hostname: str
@param port: the server port to connect to
@type port: int
@param username: the username to authenticate as (defaults to the
current local username)
@type username: str
@param password: a password to use for authentication or for unlocking
a private key
@type password: str
@param pkey: an optional private key to use for authentication
@type pkey: L{PKey}
@param key_filename: the filename, or list of filenames, of optional
private key(s) to try for authentication
@type key_filename: str or list(str)
@param timeout: an optional timeout (in seconds) for the TCP connect
@type timeout: float
@param allow_agent: set to False to disable connecting to the SSH agent
@type allow_agent: bool
@param look_for_keys: set to False to disable searching for discoverable
private key files in C{~/.ssh/}
@type look_for_keys: bool
@param compress: set to True to turn on compression
@type compress: bool
:raises BadHostKeyException: if the server's host key could not be
@raise BadHostKeyException: if the server's host key could not be
verified
:raises AuthenticationException: if authentication failed
:raises SSHException: if there was any other error connecting or
@raise AuthenticationException: if authentication failed
@raise SSHException: if there was any other error connecting or
establishing an SSH session
:raises socket.error: if a socket error occurred while connecting
@raise socket.error: if a socket error occurred while connecting
"""
if not sock:
for (family, socktype, proto, canonname, sockaddr) in socket.getaddrinfo(hostname, port, socket.AF_UNSPEC, socket.SOCK_STREAM):
if socktype == socket.SOCK_STREAM:
af = family
addr = sockaddr
break
else:
# some OS like AIX don't indicate SOCK_STREAM support, so just guess. :(
af, _, _, _, addr = socket.getaddrinfo(hostname, port, socket.AF_UNSPEC, socket.SOCK_STREAM)
sock = socket.socket(af, socket.SOCK_STREAM)
if timeout is not None:
try:
sock.settimeout(timeout)
except:
pass
retry_on_signal(lambda: sock.connect(addr))
for (family, socktype, proto, canonname, sockaddr) in socket.getaddrinfo(hostname, port, socket.AF_UNSPEC, socket.SOCK_STREAM):
if socktype == socket.SOCK_STREAM:
af = family
addr = sockaddr
break
else:
# some OS like AIX don't indicate SOCK_STREAM support, so just guess. :(
af, _, _, _, addr = socket.getaddrinfo(hostname, port, socket.AF_UNSPEC, socket.SOCK_STREAM)
sock = socket.socket(af, socket.SOCK_STREAM)
if timeout is not None:
try:
sock.settimeout(timeout)
except:
pass
retry_on_signal(lambda: sock.connect(addr))
t = self._transport = Transport(sock)
t.use_compression(compress=compress)
if self._log_channel is not None:
@ -266,73 +326,67 @@ class SSHClient (object):
if key_filename is None:
key_filenames = []
elif isinstance(key_filename, string_types):
key_filenames = [key_filename]
elif isinstance(key_filename, (str, unicode)):
key_filenames = [ key_filename ]
else:
key_filenames = key_filename
self._auth(username, password, pkey, key_filenames, allow_agent, look_for_keys)
def close(self):
"""
Close this SSHClient and its underlying `.Transport`.
Close this SSHClient and its underlying L{Transport}.
"""
if self._transport is None:
return
self._transport.close()
self._transport = None
if self._agent is not None:
if self._agent != None:
self._agent.close()
self._agent = None
def exec_command(self, command, bufsize=-1, timeout=None, get_pty=False):
def exec_command(self, command, bufsize=-1):
"""
Execute a command on the SSH server. A new `.Channel` is opened and
Execute a command on the SSH server. A new L{Channel} is opened and
the requested command is executed. The command's input and output
streams are returned as Python ``file``-like objects representing
streams are returned as python C{file}-like objects representing
stdin, stdout, and stderr.
:param str command: the command to execute
:param int bufsize:
interpreted the same way as by the built-in ``file()`` function in
Python
:param int timeout:
set command's channel timeout. See `Channel.settimeout`.settimeout
:return:
the stdin, stdout, and stderr of the executing command, as a
3-tuple
@param command: the command to execute
@type command: str
@param bufsize: interpreted the same way as by the built-in C{file()} function in python
@type bufsize: int
@return: the stdin, stdout, and stderr of the executing command
@rtype: tuple(L{ChannelFile}, L{ChannelFile}, L{ChannelFile})
:raises SSHException: if the server fails to execute the command
@raise SSHException: if the server fails to execute the command
"""
chan = self._transport.open_session()
if get_pty:
chan.get_pty()
chan.settimeout(timeout)
chan.exec_command(command)
stdin = chan.makefile('wb', bufsize)
stdout = chan.makefile('r', bufsize)
stderr = chan.makefile_stderr('r', bufsize)
stdout = chan.makefile('rb', bufsize)
stderr = chan.makefile_stderr('rb', bufsize)
return stdin, stdout, stderr
def invoke_shell(self, term='vt100', width=80, height=24, width_pixels=0,
height_pixels=0):
def invoke_shell(self, term='vt100', width=80, height=24):
"""
Start an interactive shell session on the SSH server. A new `.Channel`
Start an interactive shell session on the SSH server. A new L{Channel}
is opened and connected to a pseudo-terminal using the requested
terminal type and size.
:param str term:
the terminal type to emulate (for example, ``"vt100"``)
:param int width: the width (in characters) of the terminal window
:param int height: the height (in characters) of the terminal window
:param int width_pixels: the width (in pixels) of the terminal window
:param int height_pixels: the height (in pixels) of the terminal window
:return: a new `.Channel` connected to the remote shell
@param term: the terminal type to emulate (for example, C{"vt100"})
@type term: str
@param width: the width (in characters) of the terminal window
@type width: int
@param height: the height (in characters) of the terminal window
@type height: int
@return: a new channel connected to the remote shell
@rtype: L{Channel}
:raises SSHException: if the server fails to invoke a shell
@raise SSHException: if the server fails to invoke a shell
"""
chan = self._transport.open_session()
chan.get_pty(term, width, height, width_pixels, height_pixels)
chan.get_pty(term, width, height)
chan.invoke_shell()
return chan
@ -340,17 +394,19 @@ class SSHClient (object):
"""
Open an SFTP session on the SSH server.
:return: a new `.SFTPClient` session object
@return: a new SFTP session object
@rtype: L{SFTPClient}
"""
return self._transport.open_sftp_client()
def get_transport(self):
"""
Return the underlying `.Transport` object for this SSH connection.
Return the underlying L{Transport} object for this SSH connection.
This can be used to perform lower-level tasks, like opening specific
kinds of channels.
:return: the `.Transport` for this connection
@return: the Transport for this connection
@rtype: L{Transport}
"""
return self._transport
@ -377,7 +433,7 @@ class SSHClient (object):
two_factor = (allowed_types == ['password'])
if not two_factor:
return
except SSHException as e:
except SSHException, e:
saved_exception = e
if not two_factor:
@ -391,11 +447,11 @@ class SSHClient (object):
if not two_factor:
return
break
except SSHException as e:
except SSHException, e:
saved_exception = e
if not two_factor and allow_agent:
if self._agent is None:
if self._agent == None:
self._agent = Agent()
for key in self._agent.get_keys():
@ -407,7 +463,7 @@ class SSHClient (object):
if not two_factor:
return
break
except SSHException as e:
except SSHException, e:
saved_exception = e
if not two_factor:
@ -439,14 +495,16 @@ class SSHClient (object):
if not two_factor:
return
break
except (SSHException, IOError) as e:
except SSHException, e:
saved_exception = e
except IOError, e:
saved_exception = e
if password is not None:
try:
self._transport.auth_password(username, password)
return
except SSHException as e:
except SSHException, e:
saved_exception = e
elif two_factor:
raise SSHException('Two-factor authentication requires a password')
@ -459,59 +517,3 @@ class SSHClient (object):
def _log(self, level, msg):
self._transport._log(level, msg)
class MissingHostKeyPolicy (object):
"""
Interface for defining the policy that `.SSHClient` should use when the
SSH server's hostname is not in either the system host keys or the
application's keys. Pre-made classes implement policies for automatically
adding the key to the application's `.HostKeys` object (`.AutoAddPolicy`),
and for automatically rejecting the key (`.RejectPolicy`).
This function may be used to ask the user to verify the key, for example.
"""
def missing_host_key(self, client, hostname, key):
"""
Called when an `.SSHClient` receives a server key for a server that
isn't in either the system or local `.HostKeys` object. To accept
the key, simply return. To reject, raised an exception (which will
be passed to the calling application).
"""
pass
class AutoAddPolicy (MissingHostKeyPolicy):
"""
Policy for automatically adding the hostname and new host key to the
local `.HostKeys` object, and saving it. This is used by `.SSHClient`.
"""
def missing_host_key(self, client, hostname, key):
client._host_keys.add(hostname, key.get_name(), key)
if client._host_keys_filename is not None:
client.save_host_keys(client._host_keys_filename)
client._log(DEBUG, 'Adding %s host key for %s: %s' %
(key.get_name(), hostname, hexlify(key.get_fingerprint())))
class RejectPolicy (MissingHostKeyPolicy):
"""
Policy for automatically rejecting the unknown hostname & key. This is
used by `.SSHClient`.
"""
def missing_host_key(self, client, hostname, key):
client._log(DEBUG, 'Rejecting %s host key for %s: %s' %
(key.get_name(), hostname, hexlify(key.get_fingerprint())))
raise SSHException('Server %r not found in known_hosts' % hostname)
class WarningPolicy (MissingHostKeyPolicy):
"""
Policy for logging a Python-style warning for an unknown host key, but
accepting it. This is used by `.SSHClient`.
"""
def missing_host_key(self, client, hostname, key):
warnings.warn('Unknown %s host key for %s: %s' %
(key.get_name(), hostname, hexlify(key.get_fingerprint())))

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -19,14 +19,12 @@
"""
Common constants and global variables.
"""
import logging
from paramiko.py3compat import byte_chr, PY2, bytes_types, string_types, b, long
MSG_DISCONNECT, MSG_IGNORE, MSG_UNIMPLEMENTED, MSG_DEBUG, MSG_SERVICE_REQUEST, \
MSG_SERVICE_ACCEPT = range(1, 7)
MSG_KEXINIT, MSG_NEWKEYS = range(20, 22)
MSG_USERAUTH_REQUEST, MSG_USERAUTH_FAILURE, MSG_USERAUTH_SUCCESS, \
MSG_USERAUTH_BANNER = range(50, 54)
MSG_USERAUTH_BANNER = range(50, 54)
MSG_USERAUTH_PK_OK = 60
MSG_USERAUTH_INFO_REQUEST, MSG_USERAUTH_INFO_RESPONSE = range(60, 62)
MSG_GLOBAL_REQUEST, MSG_REQUEST_SUCCESS, MSG_REQUEST_FAILURE = range(80, 83)
@ -35,35 +33,6 @@ MSG_CHANNEL_OPEN, MSG_CHANNEL_OPEN_SUCCESS, MSG_CHANNEL_OPEN_FAILURE, \
MSG_CHANNEL_EOF, MSG_CHANNEL_CLOSE, MSG_CHANNEL_REQUEST, \
MSG_CHANNEL_SUCCESS, MSG_CHANNEL_FAILURE = range(90, 101)
cMSG_DISCONNECT = byte_chr(MSG_DISCONNECT)
cMSG_IGNORE = byte_chr(MSG_IGNORE)
cMSG_UNIMPLEMENTED = byte_chr(MSG_UNIMPLEMENTED)
cMSG_DEBUG = byte_chr(MSG_DEBUG)
cMSG_SERVICE_REQUEST = byte_chr(MSG_SERVICE_REQUEST)
cMSG_SERVICE_ACCEPT = byte_chr(MSG_SERVICE_ACCEPT)
cMSG_KEXINIT = byte_chr(MSG_KEXINIT)
cMSG_NEWKEYS = byte_chr(MSG_NEWKEYS)
cMSG_USERAUTH_REQUEST = byte_chr(MSG_USERAUTH_REQUEST)
cMSG_USERAUTH_FAILURE = byte_chr(MSG_USERAUTH_FAILURE)
cMSG_USERAUTH_SUCCESS = byte_chr(MSG_USERAUTH_SUCCESS)
cMSG_USERAUTH_BANNER = byte_chr(MSG_USERAUTH_BANNER)
cMSG_USERAUTH_PK_OK = byte_chr(MSG_USERAUTH_PK_OK)
cMSG_USERAUTH_INFO_REQUEST = byte_chr(MSG_USERAUTH_INFO_REQUEST)
cMSG_USERAUTH_INFO_RESPONSE = byte_chr(MSG_USERAUTH_INFO_RESPONSE)
cMSG_GLOBAL_REQUEST = byte_chr(MSG_GLOBAL_REQUEST)
cMSG_REQUEST_SUCCESS = byte_chr(MSG_REQUEST_SUCCESS)
cMSG_REQUEST_FAILURE = byte_chr(MSG_REQUEST_FAILURE)
cMSG_CHANNEL_OPEN = byte_chr(MSG_CHANNEL_OPEN)
cMSG_CHANNEL_OPEN_SUCCESS = byte_chr(MSG_CHANNEL_OPEN_SUCCESS)
cMSG_CHANNEL_OPEN_FAILURE = byte_chr(MSG_CHANNEL_OPEN_FAILURE)
cMSG_CHANNEL_WINDOW_ADJUST = byte_chr(MSG_CHANNEL_WINDOW_ADJUST)
cMSG_CHANNEL_DATA = byte_chr(MSG_CHANNEL_DATA)
cMSG_CHANNEL_EXTENDED_DATA = byte_chr(MSG_CHANNEL_EXTENDED_DATA)
cMSG_CHANNEL_EOF = byte_chr(MSG_CHANNEL_EOF)
cMSG_CHANNEL_CLOSE = byte_chr(MSG_CHANNEL_CLOSE)
cMSG_CHANNEL_REQUEST = byte_chr(MSG_CHANNEL_REQUEST)
cMSG_CHANNEL_SUCCESS = byte_chr(MSG_CHANNEL_SUCCESS)
cMSG_CHANNEL_FAILURE = byte_chr(MSG_CHANNEL_FAILURE)
# for debugging:
MSG_NAMES = {
@ -100,7 +69,7 @@ MSG_NAMES = {
MSG_CHANNEL_REQUEST: 'channel-request',
MSG_CHANNEL_SUCCESS: 'channel-success',
MSG_CHANNEL_FAILURE: 'channel-failure'
}
}
# authentication request return codes:
@ -126,43 +95,30 @@ CONNECTION_FAILED_CODE = {
DISCONNECT_SERVICE_NOT_AVAILABLE, DISCONNECT_AUTH_CANCELLED_BY_USER, \
DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE = 7, 13, 14
zero_byte = byte_chr(0)
one_byte = byte_chr(1)
four_byte = byte_chr(4)
max_byte = byte_chr(0xff)
cr_byte = byte_chr(13)
linefeed_byte = byte_chr(10)
crlf = cr_byte + linefeed_byte
from Crypto import Random
if PY2:
cr_byte_value = cr_byte
linefeed_byte_value = linefeed_byte
# keep a crypto-strong PRNG nearby
rng = Random.new()
import sys
if sys.version_info < (2, 3):
try:
import logging
except:
import logging22 as logging
import select
PY22 = True
import socket
if not hasattr(socket, 'timeout'):
class timeout(socket.error): pass
socket.timeout = timeout
del timeout
else:
cr_byte_value = 13
linefeed_byte_value = 10
import logging
PY22 = False
def asbytes(s):
if not isinstance(s, bytes_types):
if isinstance(s, string_types):
s = b(s)
else:
try:
s = s.asbytes()
except Exception:
raise Exception('Unknown type')
return s
xffffffff = long(0xffffffff)
x80000000 = long(0x80000000)
o666 = 438
o660 = 432
o644 = 420
o600 = 384
o777 = 511
o700 = 448
o70 = 56
DEBUG = logging.DEBUG
INFO = logging.INFO
WARNING = logging.WARNING

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.

View File

@ -1,5 +1,4 @@
# Copyright (C) 2006-2007 Robey Pointer <robeypointer@gmail.com>
# Copyright (C) 2012 Olle Lundberg <geek@nerd.sh>
#
# This file is part of paramiko.
#
@ -8,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -18,54 +17,47 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Configuration file (aka ``ssh_config``) support.
L{SSHConfig}.
"""
import fnmatch
import os
import re
import socket
SSH_PORT = 22
proxy_re = re.compile(r"^(proxycommand)\s*=*\s*(.*)", re.I)
SSH_PORT=22
class SSHConfig (object):
"""
Representation of config information as stored in the format used by
OpenSSH. Queries can be made via `lookup`. The format is described in
OpenSSH's ``ssh_config`` man page. This class is provided primarily as a
OpenSSH. Queries can be made via L{lookup}. The format is described in
OpenSSH's C{ssh_config} man page. This class is provided primarily as a
convenience to posix users (since the OpenSSH format is a de-facto
standard on posix) but should work fine on Windows too.
.. versionadded:: 1.6
@since: 1.6
"""
def __init__(self):
"""
Create a new OpenSSH config object.
"""
self._config = []
self._config = [ { 'host': '*' } ]
def parse(self, file_obj):
"""
Read an OpenSSH config from the given file object.
:param file file_obj: a file-like object to read the config file from
@param file_obj: a file-like object to read the config file from
@type file_obj: file
"""
host = {"host": ['*'], "config": {}}
configs = [self._config[0]]
for line in file_obj:
line = line.rstrip('\n').lstrip()
if (line == '') or (line[0] == '#'):
continue
if '=' in line:
# Ensure ProxyCommand gets properly split
if line.lower().strip().startswith('proxycommand'):
match = proxy_re.match(line)
key, value = match.group(1).lower(), match.group(2)
else:
key, value = line.split('=', 1)
key = key.strip().lower()
key, value = line.split('=', 1)
key = key.strip().lower()
else:
# find first whitespace, and split there
i = 0
@ -77,80 +69,69 @@ class SSHConfig (object):
value = line[i:].lstrip()
if key == 'host':
self._config.append(host)
value = value.split()
host = {key: value, 'config': {}}
#identityfile, localforward, remoteforward keys are special cases, since they are allowed to be
# specified multiple times and they should be tried in order
# of specification.
elif key in ['identityfile', 'localforward', 'remoteforward']:
if key in host['config']:
host['config'][key].append(value)
else:
host['config'][key] = [value]
elif key not in host['config']:
host['config'].update({key: value})
self._config.append(host)
del configs[:]
# the value may be multiple hosts, space-delimited
for host in value.split():
# do we have a pre-existing host config to append to?
matches = [c for c in self._config if c['host'] == host]
if len(matches) > 0:
configs.append(matches[0])
else:
config = { 'host': host }
self._config.append(config)
configs.append(config)
else:
for config in configs:
config[key] = value
def lookup(self, hostname):
"""
Return a dict of config options for a given hostname.
The host-matching rules of OpenSSH's ``ssh_config`` man page are used,
The host-matching rules of OpenSSH's C{ssh_config} man page are used,
which means that all configuration options from matching host
specifications are merged, with more specific hostmasks taking
precedence. In other words, if ``"Port"`` is set under ``"Host *"``
and also ``"Host *.example.com"``, and the lookup is for
``"ssh.example.com"``, then the port entry for ``"Host *.example.com"``
precedence. In other words, if C{"Port"} is set under C{"Host *"}
and also C{"Host *.example.com"}, and the lookup is for
C{"ssh.example.com"}, then the port entry for C{"Host *.example.com"}
will win out.
The keys in the returned dict are all normalized to lowercase (look for
``"port"``, not ``"Port"``. The values are processed according to the
rules for substitution variable expansion in ``ssh_config``.
C{"port"}, not C{"Port"}. No other processing is done to the keys or
values.
:param str hostname: the hostname to lookup
@param hostname: the hostname to lookup
@type hostname: str
"""
matches = [config for config in self._config if
self._allowed(hostname, config['host'])]
matches = [x for x in self._config if fnmatch.fnmatch(hostname, x['host'])]
# Move * to the end
_star = matches.pop(0)
matches.append(_star)
ret = {}
for match in matches:
for key, value in match['config'].items():
if key not in ret:
# Create a copy of the original value,
# else it will reference the original list
# in self._config and update that value too
# when the extend() is being called.
ret[key] = value[:]
elif key == 'identityfile':
ret[key].extend(value)
for m in matches:
for k,v in m.iteritems():
if not k in ret:
ret[k] = v
ret = self._expand_variables(ret, hostname)
del ret['host']
return ret
def _allowed(self, hostname, hosts):
match = False
for host in hosts:
if host.startswith('!') and fnmatch.fnmatch(hostname, host[1:]):
return False
elif fnmatch.fnmatch(hostname, host):
match = True
return match
def _expand_variables(self, config, hostname):
def _expand_variables(self, config, hostname ):
"""
Return a dict of config options with expanded substitutions
for a given hostname.
Please refer to man ``ssh_config`` for the parameters that
Please refer to man ssh_config(5) for the parameters that
are replaced.
:param dict config: the config for the hostname
:param str hostname: the hostname that the config belongs to
@param config: the config for the hostname
@type hostname: dict
@param hostname: the hostname that the config belongs to
@type hostname: str
"""
if 'hostname' in config:
config['hostname'] = config['hostname'].replace('%h', hostname)
config['hostname'] = config['hostname'].replace('%h',hostname)
else:
config['hostname'] = hostname
@ -166,96 +147,30 @@ class SSHConfig (object):
remoteuser = user
host = socket.gethostname().split('.')[0]
fqdn = LazyFqdn(config, host)
fqdn = socket.getfqdn()
homedir = os.path.expanduser('~')
replacements = {'controlpath':
[
('%h', config['hostname']),
('%l', fqdn),
('%L', host),
('%n', hostname),
('%p', port),
('%r', remoteuser),
('%u', user)
],
'identityfile':
[
('~', homedir),
('%d', homedir),
('%h', config['hostname']),
('%l', fqdn),
('%u', user),
('%r', remoteuser)
],
'proxycommand':
[
('%h', config['hostname']),
('%p', port),
('%r', remoteuser)
]
}
replacements = {'controlpath' :
[
('%h', config['hostname']),
('%l', fqdn),
('%L', host),
('%n', hostname),
('%p', port),
('%r', remoteuser),
('%u', user)
],
'identityfile' :
[
('~', homedir),
('%d', homedir),
('%h', config['hostname']),
('%l', fqdn),
('%u', user),
('%r', remoteuser)
]
}
for k in config:
if k in replacements:
for find, replace in replacements[k]:
if isinstance(config[k], list):
for item in range(len(config[k])):
config[k][item] = config[k][item].\
replace(find, str(replace))
else:
config[k] = config[k].replace(find, str(replace))
return config
class LazyFqdn(object):
"""
Returns the host's fqdn on request as string.
"""
def __init__(self, config, host=None):
self.fqdn = None
self.config = config
self.host = host
def __str__(self):
if self.fqdn is None:
#
# If the SSH config contains AddressFamily, use that when
# determining the local host's FQDN. Using socket.getfqdn() from
# the standard library is the most general solution, but can
# result in noticeable delays on some platforms when IPv6 is
# misconfigured or not available, as it calls getaddrinfo with no
# address family specified, so both IPv4 and IPv6 are checked.
#
# Handle specific option
fqdn = None
address_family = self.config.get('addressfamily', 'any').lower()
if address_family != 'any':
try:
family = socket.AF_INET if address_family == 'inet' \
else socket.AF_INET6
results = socket.getaddrinfo(
self.host,
None,
family,
socket.SOCK_DGRAM,
socket.IPPROTO_IP,
socket.AI_CANONNAME
)
for res in results:
af, socktype, proto, canonname, sa = res
if canonname and '.' in canonname:
fqdn = canonname
break
# giaerror -> socket.getaddrinfo() can't resolve self.host
# (which is from socket.gethostname()). Fall back to the
# getfqdn() call below.
except socket.gaierror:
pass
# Handle 'any' / unspecified
if fqdn is None:
fqdn = socket.getfqdn()
# Cache
self.fqdn = fqdn
return self.fqdn

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,17 +17,14 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
DSS keys.
L{DSSKey}
"""
import os
from hashlib import sha1
from Crypto.PublicKey import DSA
from Crypto.Hash import SHA
from paramiko.common import *
from paramiko import util
from paramiko.common import zero_byte
from paramiko.py3compat import long
from paramiko.ssh_exception import SSHException
from paramiko.message import Message
from paramiko.ber import BER, BERException
@ -59,7 +56,7 @@ class DSSKey (PKey):
else:
if msg is None:
raise SSHException('Key object may not be empty')
if msg.get_text() != 'ssh-dss':
if msg.get_string() != 'ssh-dss':
raise SSHException('Invalid key')
self.p = msg.get_mpint()
self.q = msg.get_mpint()
@ -67,17 +64,14 @@ class DSSKey (PKey):
self.y = msg.get_mpint()
self.size = util.bit_length(self.p)
def asbytes(self):
def __str__(self):
m = Message()
m.add_string('ssh-dss')
m.add_mpint(self.p)
m.add_mpint(self.q)
m.add_mpint(self.g)
m.add_mpint(self.y)
return m.asbytes()
def __str__(self):
return self.asbytes()
return str(m)
def __hash__(self):
h = hash(self.get_name())
@ -93,17 +87,17 @@ class DSSKey (PKey):
def get_bits(self):
return self.size
def can_sign(self):
return self.x is not None
def sign_ssh_data(self, data):
digest = sha1(data).digest()
def sign_ssh_data(self, rng, data):
digest = SHA.new(data).digest()
dss = DSA.construct((long(self.y), long(self.g), long(self.p), long(self.q), long(self.x)))
# generate a suitable k
qsize = len(util.deflate_long(self.q, 0))
while True:
k = util.inflate_long(os.urandom(qsize), 1)
k = util.inflate_long(rng.read(qsize), 1)
if (k > 2) and (k < self.q):
break
r, s = dss.sign(util.inflate_long(digest, 1), k)
@ -113,26 +107,26 @@ class DSSKey (PKey):
rstr = util.deflate_long(r, 0)
sstr = util.deflate_long(s, 0)
if len(rstr) < 20:
rstr = zero_byte * (20 - len(rstr)) + rstr
rstr = '\x00' * (20 - len(rstr)) + rstr
if len(sstr) < 20:
sstr = zero_byte * (20 - len(sstr)) + sstr
sstr = '\x00' * (20 - len(sstr)) + sstr
m.add_string(rstr + sstr)
return m
def verify_ssh_sig(self, data, msg):
if len(msg.asbytes()) == 40:
if len(str(msg)) == 40:
# spies.com bug: signature has no header
sig = msg.asbytes()
sig = str(msg)
else:
kind = msg.get_text()
kind = msg.get_string()
if kind != 'ssh-dss':
return 0
sig = msg.get_binary()
sig = msg.get_string()
# pull out (r, s) which are NOT encoded as mpints
sigR = util.inflate_long(sig[:20], 1)
sigS = util.inflate_long(sig[20:], 1)
sigM = util.inflate_long(sha1(data).digest(), 1)
sigM = util.inflate_long(SHA.new(data).digest(), 1)
dss = DSA.construct((long(self.y), long(self.g), long(self.p), long(self.q)))
return dss.verify(sigM, (sigR, sigS))
@ -140,13 +134,13 @@ class DSSKey (PKey):
def _encode_key(self):
if self.x is None:
raise SSHException('Not enough key information')
keylist = [0, self.p, self.q, self.g, self.y, self.x]
keylist = [ 0, self.p, self.q, self.g, self.y, self.x ]
try:
b = BER()
b.encode(keylist)
except BERException:
raise SSHException('Unable to create ber encoding of key')
return b.asbytes()
return str(b)
def write_private_key_file(self, filename, password=None):
self._write_private_key_file('DSA', filename, self._encode_key(), password)
@ -159,35 +153,39 @@ class DSSKey (PKey):
Generate a new private DSS key. This factory function can be used to
generate a new host key or authentication key.
:param int bits: number of bits the generated key should be.
:param function progress_func:
an optional function to call at key points in key generation (used
by ``pyCrypto.PublicKey``).
:return: new `.DSSKey` private key
@param bits: number of bits the generated key should be.
@type bits: int
@param progress_func: an optional function to call at key points in
key generation (used by C{pyCrypto.PublicKey}).
@type progress_func: function
@return: new private key
@rtype: L{DSSKey}
"""
dsa = DSA.generate(bits, os.urandom, progress_func)
dsa = DSA.generate(bits, rng.read, progress_func)
key = DSSKey(vals=(dsa.p, dsa.q, dsa.g, dsa.y))
key.x = dsa.x
return key
generate = staticmethod(generate)
### internals...
def _from_private_key_file(self, filename, password):
data = self._read_private_key_file('DSA', filename, password)
self._decode_key(data)
def _from_private_key(self, file_obj, password):
data = self._read_private_key('DSA', file_obj, password)
self._decode_key(data)
def _decode_key(self, data):
# private key file contains:
# DSAPrivateKey = { version = 0, p, q, g, y, x }
try:
keylist = BER(data).decode()
except BERException as e:
raise SSHException('Unable to parse key file: ' + str(e))
except BERException, x:
raise SSHException('Unable to parse key file: ' + str(x))
if (type(keylist) is not list) or (len(keylist) < 6) or (keylist[0] != 0):
raise SSHException('not a valid DSA private key file (bad ber encoding)')
self.p = keylist[1]

View File

@ -1,180 +0,0 @@
# Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
L{ECDSAKey}
"""
import binascii
from hashlib import sha256
from ecdsa import SigningKey, VerifyingKey, der, curves
from ecdsa.test_pyecdsa import ECDSA
from paramiko.common import four_byte, one_byte
from paramiko.message import Message
from paramiko.pkey import PKey
from paramiko.py3compat import byte_chr, u
from paramiko.ssh_exception import SSHException
class ECDSAKey (PKey):
"""
Representation of an ECDSA key which can be used to sign and verify SSH2
data.
"""
def __init__(self, msg=None, data=None, filename=None, password=None, vals=None, file_obj=None):
self.verifying_key = None
self.signing_key = None
if file_obj is not None:
self._from_private_key(file_obj, password)
return
if filename is not None:
self._from_private_key_file(filename, password)
return
if (msg is None) and (data is not None):
msg = Message(data)
if vals is not None:
self.verifying_key, self.signing_key = vals
else:
if msg is None:
raise SSHException('Key object may not be empty')
if msg.get_text() != 'ecdsa-sha2-nistp256':
raise SSHException('Invalid key')
curvename = msg.get_text()
if curvename != 'nistp256':
raise SSHException("Can't handle curve of type %s" % curvename)
pointinfo = msg.get_binary()
if pointinfo[0:1] != four_byte:
raise SSHException('Point compression is being used: %s' %
binascii.hexlify(pointinfo))
self.verifying_key = VerifyingKey.from_string(pointinfo[1:],
curve=curves.NIST256p)
self.size = 256
def asbytes(self):
key = self.verifying_key
m = Message()
m.add_string('ecdsa-sha2-nistp256')
m.add_string('nistp256')
point_str = four_byte + key.to_string()
m.add_string(point_str)
return m.asbytes()
def __str__(self):
return self.asbytes()
def __hash__(self):
h = hash(self.get_name())
h = h * 37 + hash(self.verifying_key.pubkey.point.x())
h = h * 37 + hash(self.verifying_key.pubkey.point.y())
return hash(h)
def get_name(self):
return 'ecdsa-sha2-nistp256'
def get_bits(self):
return self.size
def can_sign(self):
return self.signing_key is not None
def sign_ssh_data(self, data):
sig = self.signing_key.sign_deterministic(
data, sigencode=self._sigencode, hashfunc=sha256)
m = Message()
m.add_string('ecdsa-sha2-nistp256')
m.add_string(sig)
return m
def verify_ssh_sig(self, data, msg):
if msg.get_text() != 'ecdsa-sha2-nistp256':
return False
sig = msg.get_binary()
# verify the signature by SHA'ing the data and encrypting it
# using the public key.
hash_obj = sha256(data).digest()
return self.verifying_key.verify_digest(sig, hash_obj,
sigdecode=self._sigdecode)
def write_private_key_file(self, filename, password=None):
key = self.signing_key or self.verifying_key
self._write_private_key_file('EC', filename, key.to_der(), password)
def write_private_key(self, file_obj, password=None):
key = self.signing_key or self.verifying_key
self._write_private_key('EC', file_obj, key.to_der(), password)
def generate(bits, progress_func=None):
"""
Generate a new private RSA key. This factory function can be used to
generate a new host key or authentication key.
@param bits: number of bits the generated key should be.
@type bits: int
@param progress_func: an optional function to call at key points in
key generation (used by C{pyCrypto.PublicKey}).
@type progress_func: function
@return: new private key
@rtype: L{RSAKey}
"""
signing_key = ECDSA.generate()
key = ECDSAKey(vals=(signing_key, signing_key.get_verifying_key()))
return key
generate = staticmethod(generate)
### internals...
def _from_private_key_file(self, filename, password):
data = self._read_private_key_file('EC', filename, password)
self._decode_key(data)
def _from_private_key(self, file_obj, password):
data = self._read_private_key('EC', file_obj, password)
self._decode_key(data)
ALLOWED_PADDINGS = [one_byte, byte_chr(2) * 2, byte_chr(3) * 3, byte_chr(4) * 4,
byte_chr(5) * 5, byte_chr(6) * 6, byte_chr(7) * 7]
def _decode_key(self, data):
s, padding = der.remove_sequence(data)
if padding:
if padding not in self.ALLOWED_PADDINGS:
raise ValueError("weird padding: %s" % u(binascii.hexlify(data)))
data = data[:-len(padding)]
key = SigningKey.from_der(data)
self.signing_key = key
self.verifying_key = key.get_verifying_key()
self.size = 256
def _sigencode(self, r, s, order):
msg = Message()
msg.add_mpint(r)
msg.add_mpint(s)
return msg.asbytes()
def _sigdecode(self, sig, order):
msg = Message(sig)
r = msg.get_mpint()
s = msg.get_mpint()
return r, s

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -15,14 +15,17 @@
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
from paramiko.common import linefeed_byte_value, crlf, cr_byte, linefeed_byte, \
cr_byte_value
from paramiko.py3compat import BytesIO, PY2, u, b, bytes_types
"""
BufferedFile.
"""
from cStringIO import StringIO
class BufferedFile (object):
"""
Reusable base class to implement Python-style file buffering around a
Reusable base class to implement python-style file buffering around a
simpler stream.
"""
@ -44,8 +47,8 @@ class BufferedFile (object):
self.newlines = None
self._flags = 0
self._bufsize = self._DEFAULT_BUFSIZE
self._wbuffer = BytesIO()
self._rbuffer = bytes()
self._wbuffer = StringIO()
self._rbuffer = ''
self._at_trailing_cr = False
self._closed = False
# pos - position within the file, according to the user
@ -64,7 +67,10 @@ class BufferedFile (object):
file. This iterator happens to return the file itself, since a file is
its own iterator.
:raises ValueError: if the file is closed.
@raise ValueError: if the file is closed.
@return: an interator.
@rtype: iterator
"""
if self._closed:
raise ValueError('I/O operation on closed file')
@ -83,57 +89,36 @@ class BufferedFile (object):
buffering is not turned on.
"""
self._write_all(self._wbuffer.getvalue())
self._wbuffer = BytesIO()
self._wbuffer = StringIO()
return
if PY2:
def next(self):
"""
Returns the next line from the input, or raises
`~exceptions.StopIteration` when EOF is hit. Unlike Python file
objects, it's okay to mix calls to `next` and `readline`.
def next(self):
"""
Returns the next line from the input, or raises L{StopIteration} when
EOF is hit. Unlike python file objects, it's okay to mix calls to
C{next} and L{readline}.
:raises StopIteration: when the end of the file is reached.
@raise StopIteration: when the end of the file is reached.
:return: a line (`str`) read from the file.
"""
line = self.readline()
if not line:
raise StopIteration
return line
else:
def __next__(self):
"""
Returns the next line from the input, or raises L{StopIteration} when
EOF is hit. Unlike python file objects, it's okay to mix calls to
C{next} and L{readline}.
@raise StopIteration: when the end of the file is reached.
@return: a line read from the file.
@rtype: str
"""
line = self.readline()
if not line:
raise StopIteration
return line
@return: a line read from the file.
@rtype: str
"""
line = self.readline()
if not line:
raise StopIteration
return line
def read(self, size=None):
"""
Read at most ``size`` bytes from the file (less if we hit the end of the
file first). If the ``size`` argument is negative or omitted, read all
Read at most C{size} bytes from the file (less if we hit the end of the
file first). If the C{size} argument is negative or omitted, read all
the remaining data in the file.
.. note::
``'b'`` mode flag is ignored (``self.FLAG_BINARY`` in
``self._flags``), because SSH treats all files as binary, since we
have no idea what encoding the file is in, or even if the file is
text data.
:param int size: maximum number of bytes to read
:return:
data read from the file (as bytes), or an empty string if EOF was
@param size: maximum number of bytes to read
@type size: int
@return: data read from the file, or an empty string if EOF was
encountered immediately
@rtype: str
"""
if self._closed:
raise IOError('File is closed')
@ -142,7 +127,7 @@ class BufferedFile (object):
if (size is None) or (size < 0):
# go for broke
result = self._rbuffer
self._rbuffer = bytes()
self._rbuffer = ''
self._pos += len(result)
while True:
try:
@ -154,12 +139,12 @@ class BufferedFile (object):
result += new_data
self._realpos += len(new_data)
self._pos += len(new_data)
return result
return result
if size <= len(self._rbuffer):
result = self._rbuffer[:size]
self._rbuffer = self._rbuffer[size:]
self._pos += len(result)
return result
return result
while len(self._rbuffer) < size:
read_size = size - len(self._rbuffer)
if self._flags & self.FLAG_BUFFERED:
@ -175,7 +160,7 @@ class BufferedFile (object):
result = self._rbuffer[:size]
self._rbuffer = self._rbuffer[size:]
self._pos += len(result)
return result
return result
def readline(self, size=None):
"""
@ -186,18 +171,14 @@ class BufferedFile (object):
incomplete line may be returned. An empty string is returned only when
EOF is encountered immediately.
.. note::
Unlike stdio's ``fgets``, the returned string contains null
characters (``'\\0'``) if they occurred in the input.
@note: Unlike stdio's C{fgets()}, the returned string contains null
characters (C{'\\0'}) if they occurred in the input.
:param int size: maximum length of returned string.
:return:
next line of the file, or an empty string if the end of the
@param size: maximum length of returned string.
@type size: int
@return: next line of the file, or an empty string if the end of the
file has been reached.
If the file was opened in binary (``'b'``) mode: bytes are returned
Else: the encoding of the file is assumed to be UTF-8 and character
strings (`str`) are returned
@rtype: str
"""
# it's almost silly how complex this function is.
if self._closed:
@ -209,11 +190,11 @@ class BufferedFile (object):
if self._at_trailing_cr and (self._flags & self.FLAG_UNIVERSAL_NEWLINE) and (len(line) > 0):
# edge case: the newline may be '\r\n' and we may have read
# only the first '\r' last time.
if line[0] == linefeed_byte_value:
if line[0] == '\n':
line = line[1:]
self._record_newline(crlf)
self._record_newline('\r\n')
else:
self._record_newline(cr_byte)
self._record_newline('\r')
self._at_trailing_cr = False
# check size before looking for a linefeed, in case we already have
# enough.
@ -223,82 +204,84 @@ class BufferedFile (object):
self._rbuffer = line[size:]
line = line[:size]
self._pos += len(line)
return line if self._flags & self.FLAG_BINARY else u(line)
return line
n = size - len(line)
else:
n = self._bufsize
if (linefeed_byte in line) or ((self._flags & self.FLAG_UNIVERSAL_NEWLINE) and (cr_byte in line)):
if ('\n' in line) or ((self._flags & self.FLAG_UNIVERSAL_NEWLINE) and ('\r' in line)):
break
try:
new_data = self._read(n)
except EOFError:
new_data = None
if (new_data is None) or (len(new_data) == 0):
self._rbuffer = bytes()
self._rbuffer = ''
self._pos += len(line)
return line if self._flags & self.FLAG_BINARY else u(line)
return line
line += new_data
self._realpos += len(new_data)
# find the newline
pos = line.find(linefeed_byte)
pos = line.find('\n')
if self._flags & self.FLAG_UNIVERSAL_NEWLINE:
rpos = line.find(cr_byte)
if (rpos >= 0) and (rpos < pos or pos < 0):
rpos = line.find('\r')
if (rpos >= 0) and ((rpos < pos) or (pos < 0)):
pos = rpos
xpos = pos + 1
if (line[pos] == cr_byte_value) and (xpos < len(line)) and (line[xpos] == linefeed_byte_value):
if (line[pos] == '\r') and (xpos < len(line)) and (line[xpos] == '\n'):
xpos += 1
self._rbuffer = line[xpos:]
lf = line[pos:xpos]
line = line[:pos] + linefeed_byte
if (len(self._rbuffer) == 0) and (lf == cr_byte):
line = line[:pos] + '\n'
if (len(self._rbuffer) == 0) and (lf == '\r'):
# we could read the line up to a '\r' and there could still be a
# '\n' following that we read next time. note that and eat it.
self._at_trailing_cr = True
else:
self._record_newline(lf)
self._pos += len(line)
return line if self._flags & self.FLAG_BINARY else u(line)
return line
def readlines(self, sizehint=None):
"""
Read all remaining lines using `readline` and return them as a list.
If the optional ``sizehint`` argument is present, instead of reading up
Read all remaining lines using L{readline} and return them as a list.
If the optional C{sizehint} argument is present, instead of reading up
to EOF, whole lines totalling approximately sizehint bytes (possibly
after rounding up to an internal buffer size) are read.
:param int sizehint: desired maximum number of bytes to read.
:return: `list` of lines read from the file.
@param sizehint: desired maximum number of bytes to read.
@type sizehint: int
@return: list of lines read from the file.
@rtype: list
"""
lines = []
byte_count = 0
bytes = 0
while True:
line = self.readline()
if len(line) == 0:
break
lines.append(line)
byte_count += len(line)
if (sizehint is not None) and (byte_count >= sizehint):
bytes += len(line)
if (sizehint is not None) and (bytes >= sizehint):
break
return lines
def seek(self, offset, whence=0):
"""
Set the file's current position, like stdio's ``fseek``. Not all file
Set the file's current position, like stdio's C{fseek}. Not all file
objects support seeking.
.. note::
If a file is opened in append mode (``'a'`` or ``'a+'``), any seek
@note: If a file is opened in append mode (C{'a'} or C{'a+'}), any seek
operations will be undone at the next write (as the file position
will move back to the end of the file).
:param int offset:
position to move to within the file, relative to ``whence``.
:param int whence:
type of movement: 0 = absolute; 1 = relative to the current
position; 2 = relative to the end of the file.
@param offset: position to move to within the file, relative to
C{whence}.
@type offset: int
@param whence: type of movement: 0 = absolute; 1 = relative to the
current position; 2 = relative to the end of the file.
@type whence: int
:raises IOError: if the file doesn't support random access.
@raise IOError: if the file doesn't support random access.
"""
raise IOError('File does not support seeking.')
@ -308,20 +291,21 @@ class BufferedFile (object):
useful if the underlying file doesn't support random access, or was
opened in append mode.
:return: file position (`number <int>` of bytes).
@return: file position (in bytes).
@rtype: int
"""
return self._pos
def write(self, data):
"""
Write data to the file. If write buffering is on (``bufsize`` was
Write data to the file. If write buffering is on (C{bufsize} was
specified and non-zero), some or all of the data may not actually be
written yet. (Use `flush` or `close` to force buffered data to be
written yet. (Use L{flush} or L{close} to force buffered data to be
written out.)
:param str data: data to write
@param data: data to write.
@type data: str
"""
data = b(data)
if self._closed:
raise IOError('File is closed')
if not (self._flags & self.FLAG_WRITE):
@ -332,12 +316,12 @@ class BufferedFile (object):
self._wbuffer.write(data)
if self._flags & self.FLAG_LINE_BUFFERED:
# only scan the new data for linefeed, to avoid wasting time.
last_newline_pos = data.rfind(linefeed_byte)
last_newline_pos = data.rfind('\n')
if last_newline_pos >= 0:
wbuf = self._wbuffer.getvalue()
last_newline_pos += len(wbuf) - len(data)
self._write_all(wbuf[:last_newline_pos + 1])
self._wbuffer = BytesIO()
self._wbuffer = StringIO()
self._wbuffer.write(wbuf[last_newline_pos + 1:])
return
# even if we're line buffering, if the buffer has grown past the
@ -350,10 +334,11 @@ class BufferedFile (object):
"""
Write a sequence of strings to the file. The sequence can be any
iterable object producing strings, typically a list of strings. (The
name is intended to match `readlines`; `writelines` does not add line
name is intended to match L{readlines}; C{writelines} does not add line
separators.)
:param iterable sequence: an iterable sequence of strings.
@param sequence: an iterable sequence of strings.
@type sequence: sequence
"""
for line in sequence:
self.write(line)
@ -361,45 +346,48 @@ class BufferedFile (object):
def xreadlines(self):
"""
Identical to ``iter(f)``. This is a deprecated file interface that
predates Python iterator support.
Identical to C{iter(f)}. This is a deprecated file interface that
predates python iterator support.
@return: an iterator.
@rtype: iterator
"""
return self
@property
def closed(self):
return self._closed
### overrides...
def _read(self, size):
"""
(subclass override)
Read data from the stream. Return ``None`` or raise ``EOFError`` to
I{(subclass override)}
Read data from the stream. Return C{None} or raise C{EOFError} to
indicate EOF.
"""
raise EOFError()
def _write(self, data):
"""
(subclass override)
I{(subclass override)}
Write data into the stream.
"""
raise IOError('write not implemented')
def _get_size(self):
"""
(subclass override)
Return the size of the file. This is called from within `_set_mode`
I{(subclass override)}
Return the size of the file. This is called from within L{_set_mode}
if the file is opened in append mode, so the file position can be
tracked and `seek` and `tell` will work correctly. If the file is
tracked and L{seek} and L{tell} will work correctly. If the file is
a stream that can't be randomly accessed, you don't need to override
this method,
"""
return 0
### internals...
def _set_mode(self, mode='r', bufsize=-1):
"""
Subclasses call this method to initialize the BufferedFile.
@ -427,13 +415,13 @@ class BufferedFile (object):
self._flags |= self.FLAG_READ
if ('w' in mode) or ('+' in mode):
self._flags |= self.FLAG_WRITE
if 'a' in mode:
if ('a' in mode):
self._flags |= self.FLAG_WRITE | self.FLAG_APPEND
self._size = self._get_size()
self._pos = self._realpos = self._size
if 'b' in mode:
if ('b' in mode):
self._flags |= self.FLAG_BINARY
if 'U' in mode:
if ('U' in mode):
self._flags |= self.FLAG_UNIVERSAL_NEWLINE
# built-in file objects have this attribute to store which kinds of
# line terminations they've seen:
@ -462,7 +450,7 @@ class BufferedFile (object):
return
if self.newlines is None:
self.newlines = newline
elif self.newlines != newline and isinstance(self.newlines, bytes_types):
elif (type(self.newlines) is str) and (self.newlines != newline):
self.newlines = (self.newlines, newline)
elif newline not in self.newlines:
self.newlines += (newline,)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -16,45 +16,109 @@
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
L{HostKeys}
"""
import base64
import binascii
import os
from hashlib import sha1
from hmac import HMAC
from paramiko.py3compat import b, u, encodebytes, decodebytes
try:
from collections import MutableMapping
except ImportError:
# noinspection PyUnresolvedReferences
from UserDict import DictMixin as MutableMapping
from Crypto.Hash import SHA, HMAC
import UserDict
from paramiko.common import *
from paramiko.dsskey import DSSKey
from paramiko.rsakey import RSAKey
from paramiko.util import get_logger, constant_time_bytes_eq
from paramiko.ecdsakey import ECDSAKey
class HostKeys (MutableMapping):
class InvalidHostKey(Exception):
def __init__(self, line, exc):
self.line = line
self.exc = exc
self.args = (line, exc)
class HostKeyEntry:
"""
Representation of an OpenSSH-style "known hosts" file. Host keys can be
Representation of a line in an OpenSSH-style "known hosts" file.
"""
def __init__(self, hostnames=None, key=None):
self.valid = (hostnames is not None) and (key is not None)
self.hostnames = hostnames
self.key = key
def from_line(cls, line):
"""
Parses the given line of text to find the names for the host,
the type of key, and the key data. The line is expected to be in the
format used by the openssh known_hosts file.
Lines are expected to not have leading or trailing whitespace.
We don't bother to check for comments or empty lines. All of
that should be taken care of before sending the line to us.
@param line: a line from an OpenSSH known_hosts file
@type line: str
"""
fields = line.split(' ')
if len(fields) < 3:
# Bad number of fields
return None
fields = fields[:3]
names, keytype, key = fields
names = names.split(',')
# Decide what kind of key we're looking at and create an object
# to hold it accordingly.
try:
if keytype == 'ssh-rsa':
key = RSAKey(data=base64.decodestring(key))
elif keytype == 'ssh-dss':
key = DSSKey(data=base64.decodestring(key))
else:
return None
except binascii.Error, e:
raise InvalidHostKey(line, e)
return cls(names, key)
from_line = classmethod(from_line)
def to_line(self):
"""
Returns a string in OpenSSH known_hosts file format, or None if
the object is not in a valid state. A trailing newline is
included.
"""
if self.valid:
return '%s %s %s\n' % (','.join(self.hostnames), self.key.get_name(),
self.key.get_base64())
return None
def __repr__(self):
return '<HostKeyEntry %r: %r>' % (self.hostnames, self.key)
class HostKeys (UserDict.DictMixin):
"""
Representation of an openssh-style "known hosts" file. Host keys can be
read from one or more files, and then individual hosts can be looked up to
verify server keys during SSH negotiation.
A `.HostKeys` object can be treated like a dict; any dict lookup is
equivalent to calling `lookup`.
A HostKeys object can be treated like a dict; any dict lookup is equivalent
to calling L{lookup}.
.. versionadded:: 1.5.3
@since: 1.5.3
"""
def __init__(self, filename=None):
"""
Create a new HostKeys object, optionally loading keys from an OpenSSH
Create a new HostKeys object, optionally loading keys from an openssh
style host-key file.
:param str filename: filename to load host keys from, or ``None``
@param filename: filename to load host keys from, or C{None}
@type filename: str
"""
# emulate a dict of { hostname: { keytype: PKey } }
self._entries = []
@ -64,11 +128,14 @@ class HostKeys (MutableMapping):
def add(self, hostname, keytype, key):
"""
Add a host key entry to the table. Any existing entry for a
``(hostname, keytype)`` pair will be replaced.
C{(hostname, keytype)} pair will be replaced.
:param str hostname: the hostname (or IP) to add
:param str keytype: key type (``"ssh-rsa"`` or ``"ssh-dss"``)
:param .PKey key: the key to add
@param hostname: the hostname (or IP) to add
@type hostname: str
@param keytype: key type (C{"ssh-rsa"} or C{"ssh-dss"})
@type keytype: str
@param key: the key to add
@type key: L{PKey}
"""
for e in self._entries:
if (hostname in e.hostnames) and (e.key.get_name() == keytype):
@ -78,81 +145,68 @@ class HostKeys (MutableMapping):
def load(self, filename):
"""
Read a file of known SSH host keys, in the format used by OpenSSH.
Read a file of known SSH host keys, in the format used by openssh.
This type of file unfortunately doesn't exist on Windows, but on
posix, it will usually be stored in
``os.path.expanduser("~/.ssh/known_hosts")``.
C{os.path.expanduser("~/.ssh/known_hosts")}.
If this method is called multiple times, the host keys are merged,
not cleared. So multiple calls to `load` will just call `add`,
not cleared. So multiple calls to C{load} will just call L{add},
replacing any existing entries and adding new ones.
:param str filename: name of the file to read host keys from
@param filename: name of the file to read host keys from
@type filename: str
:raises IOError: if there was an error reading the file
@raise IOError: if there was an error reading the file
"""
with open(filename, 'r') as f:
for lineno, line in enumerate(f):
line = line.strip()
if (len(line) == 0) or (line[0] == '#'):
continue
e = HostKeyEntry.from_line(line, lineno)
if e is not None:
_hostnames = e.hostnames
for h in _hostnames:
if self.check(h, e.key):
e.hostnames.remove(h)
if len(e.hostnames):
self._entries.append(e)
f = open(filename, 'r')
for line in f:
line = line.strip()
if (len(line) == 0) or (line[0] == '#'):
continue
e = HostKeyEntry.from_line(line)
if e is not None:
self._entries.append(e)
f.close()
def save(self, filename):
"""
Save host keys into a file, in the format used by OpenSSH. The order of
Save host keys into a file, in the format used by openssh. The order of
keys in the file will be preserved when possible (if these keys were
loaded from a file originally). The single exception is that combined
lines will be split into individual key lines, which is arguably a bug.
:param str filename: name of the file to write
@param filename: name of the file to write
@type filename: str
:raises IOError: if there was an error writing the file
@raise IOError: if there was an error writing the file
.. versionadded:: 1.6.1
@since: 1.6.1
"""
with open(filename, 'w') as f:
for e in self._entries:
line = e.to_line()
if line:
f.write(line)
f = open(filename, 'w')
for e in self._entries:
line = e.to_line()
if line:
f.write(line)
f.close()
def lookup(self, hostname):
"""
Find a hostkey entry for a given hostname or IP. If no entry is found,
``None`` is returned. Otherwise a dictionary of keytype to key is
returned. The keytype will be either ``"ssh-rsa"`` or ``"ssh-dss"``.
C{None} is returned. Otherwise a dictionary of keytype to key is
returned. The keytype will be either C{"ssh-rsa"} or C{"ssh-dss"}.
:param str hostname: the hostname (or IP) to lookup
:return: dict of `str` -> `.PKey` keys associated with this host (or ``None``)
@param hostname: the hostname (or IP) to lookup
@type hostname: str
@return: keys associated with this host (or C{None})
@rtype: dict(str, L{PKey})
"""
class SubDict (MutableMapping):
class SubDict (UserDict.DictMixin):
def __init__(self, hostname, entries, hostkeys):
self._hostname = hostname
self._entries = entries
self._hostkeys = hostkeys
def __iter__(self):
for k in self.keys():
yield k
def __len__(self):
return len(self.keys())
def __delitem__(self, key):
for e in list(self._entries):
if e.key.get_name() == key:
self._entries.remove(e)
else:
raise KeyError(key)
def __getitem__(self, key):
for e in self._entries:
if e.key.get_name() == key:
@ -179,7 +233,7 @@ class HostKeys (MutableMapping):
entries = []
for e in self._entries:
for h in e.hostnames:
if h.startswith('|1|') and constant_time_bytes_eq(self.hash_host(hostname, h), h) or h == hostname:
if (h.startswith('|1|') and (self.hash_host(hostname, h) == h)) or (h == hostname):
entries.append(e)
if len(entries) == 0:
return None
@ -190,10 +244,13 @@ class HostKeys (MutableMapping):
Return True if the given key is associated with the given hostname
in this dictionary.
:param str hostname: hostname (or IP) of the SSH server
:param .PKey key: the key to check
:return:
``True`` if the key is associated with the hostname; else ``False``
@param hostname: hostname (or IP) of the SSH server
@type hostname: str
@param key: the key to check
@type key: L{PKey}
@return: C{True} if the key is associated with the hostname; C{False}
if not
@rtype: bool
"""
k = self.lookup(hostname)
if k is None:
@ -201,7 +258,7 @@ class HostKeys (MutableMapping):
host_key = k.get(key.get_name(), None)
if host_key is None:
return False
return host_key.asbytes() == key.asbytes()
return str(host_key) == str(key)
def clear(self):
"""
@ -209,16 +266,6 @@ class HostKeys (MutableMapping):
"""
self._entries = []
def __iter__(self):
for k in self.keys():
yield k
def __len__(self):
return len(self.keys())
def __delitem__(self, key):
k = self[key]
def __getitem__(self, key):
ret = self.lookup(key)
if ret is None:
@ -241,7 +288,7 @@ class HostKeys (MutableMapping):
self._entries.append(HostKeyEntry([hostname], entry[key_type]))
def keys(self):
# Python 2.4 sets would be nice here.
# python 2.4 sets would be nice here.
ret = []
for e in self._entries:
for h in e.hostnames:
@ -257,97 +304,25 @@ class HostKeys (MutableMapping):
def hash_host(hostname, salt=None):
"""
Return a "hashed" form of the hostname, as used by OpenSSH when storing
Return a "hashed" form of the hostname, as used by openssh when storing
hashed hostnames in the known_hosts file.
:param str hostname: the hostname to hash
:param str salt: optional salt to use when hashing (must be 20 bytes long)
:return: the hashed hostname as a `str`
@param hostname: the hostname to hash
@type hostname: str
@param salt: optional salt to use when hashing (must be 20 bytes long)
@type salt: str
@return: the hashed hostname
@rtype: str
"""
if salt is None:
salt = os.urandom(sha1().digest_size)
salt = rng.read(SHA.digest_size)
else:
if salt.startswith('|1|'):
salt = salt.split('|')[2]
salt = decodebytes(b(salt))
assert len(salt) == sha1().digest_size
hmac = HMAC(salt, b(hostname), sha1).digest()
hostkey = '|1|%s|%s' % (u(encodebytes(salt)), u(encodebytes(hmac)))
salt = base64.decodestring(salt)
assert len(salt) == SHA.digest_size
hmac = HMAC.HMAC(salt, hostname, SHA).digest()
hostkey = '|1|%s|%s' % (base64.encodestring(salt), base64.encodestring(hmac))
return hostkey.replace('\n', '')
hash_host = staticmethod(hash_host)
class InvalidHostKey(Exception):
def __init__(self, line, exc):
self.line = line
self.exc = exc
self.args = (line, exc)
class HostKeyEntry:
"""
Representation of a line in an OpenSSH-style "known hosts" file.
"""
def __init__(self, hostnames=None, key=None):
self.valid = (hostnames is not None) and (key is not None)
self.hostnames = hostnames
self.key = key
def from_line(cls, line, lineno=None):
"""
Parses the given line of text to find the names for the host,
the type of key, and the key data. The line is expected to be in the
format used by the OpenSSH known_hosts file.
Lines are expected to not have leading or trailing whitespace.
We don't bother to check for comments or empty lines. All of
that should be taken care of before sending the line to us.
:param str line: a line from an OpenSSH known_hosts file
"""
log = get_logger('paramiko.hostkeys')
fields = line.split(' ')
if len(fields) < 3:
# Bad number of fields
log.info("Not enough fields found in known_hosts in line %s (%r)" %
(lineno, line))
return None
fields = fields[:3]
names, keytype, key = fields
names = names.split(',')
# Decide what kind of key we're looking at and create an object
# to hold it accordingly.
try:
key = b(key)
if keytype == 'ssh-rsa':
key = RSAKey(data=decodebytes(key))
elif keytype == 'ssh-dss':
key = DSSKey(data=decodebytes(key))
elif keytype == 'ecdsa-sha2-nistp256':
key = ECDSAKey(data=decodebytes(key))
else:
log.info("Unable to handle key of type %s" % (keytype,))
return None
except binascii.Error as e:
raise InvalidHostKey(line, e)
return cls(names, key)
from_line = classmethod(from_line)
def to_line(self):
"""
Returns a string in OpenSSH known_hosts file format, or None if
the object is not in a valid state. A trailing newline is
included.
"""
if self.valid:
return '%s %s %s\n' % (','.join(self.hostnames), self.key.get_name(),
self.key.get_base64())
return None
def __repr__(self):
return '<HostKeyEntry %r: %r>' % (self.hostnames, self.key)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,25 +17,22 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Variant on `KexGroup1 <paramiko.kex_group1.KexGroup1>` where the prime "p" and
Variant on L{KexGroup1 <paramiko.kex_group1.KexGroup1>} where the prime "p" and
generator "g" are provided by the server. A bit more work is required on the
client side, and a B{lot} more on the server side.
"""
import os
from hashlib import sha1
from Crypto.Hash import SHA
from Crypto.Util import number
from paramiko.common import *
from paramiko import util
from paramiko.common import DEBUG
from paramiko.message import Message
from paramiko.py3compat import byte_chr, byte_ord, byte_mask
from paramiko.ssh_exception import SSHException
_MSG_KEXDH_GEX_REQUEST_OLD, _MSG_KEXDH_GEX_GROUP, _MSG_KEXDH_GEX_INIT, \
_MSG_KEXDH_GEX_REPLY, _MSG_KEXDH_GEX_REQUEST = range(30, 35)
c_MSG_KEXDH_GEX_REQUEST_OLD, c_MSG_KEXDH_GEX_GROUP, c_MSG_KEXDH_GEX_INIT, \
c_MSG_KEXDH_GEX_REPLY, c_MSG_KEXDH_GEX_REQUEST = [byte_chr(c) for c in range(30, 35)]
class KexGex (object):
@ -65,11 +62,11 @@ class KexGex (object):
m = Message()
if _test_old_style:
# only used for unit tests: we shouldn't ever send this
m.add_byte(c_MSG_KEXDH_GEX_REQUEST_OLD)
m.add_byte(chr(_MSG_KEXDH_GEX_REQUEST_OLD))
m.add_int(self.preferred_bits)
self.old_style = True
else:
m.add_byte(c_MSG_KEXDH_GEX_REQUEST)
m.add_byte(chr(_MSG_KEXDH_GEX_REQUEST))
m.add_int(self.min_bits)
m.add_int(self.preferred_bits)
m.add_int(self.max_bits)
@ -89,21 +86,23 @@ class KexGex (object):
return self._parse_kexdh_gex_request_old(m)
raise SSHException('KexGex asked to handle packet type %d' % ptype)
### internals...
def _generate_x(self):
# generate an "x" (1 < x < (p-1)/2).
q = (self.p - 1) // 2
qnorm = util.deflate_long(q, 0)
qhbyte = byte_ord(qnorm[0])
byte_count = len(qnorm)
qhbyte = ord(qnorm[0])
bytes = len(qnorm)
qmask = 0xff
while not (qhbyte & 0x80):
qhbyte <<= 1
qmask >>= 1
while True:
x_bytes = os.urandom(byte_count)
x_bytes = byte_mask(x_bytes[0], qmask) + x_bytes[1:]
x_bytes = self.transport.rng.read(bytes)
x_bytes = chr(ord(x_bytes[0]) & qmask) + x_bytes[1:]
x = util.inflate_long(x_bytes, 1)
if (x > 1) and (x < q):
break
@ -136,7 +135,7 @@ class KexGex (object):
self.transport._log(DEBUG, 'Picking p (%d <= %d <= %d bits)' % (minbits, preferredbits, maxbits))
self.g, self.p = pack.get_modulus(minbits, preferredbits, maxbits)
m = Message()
m.add_byte(c_MSG_KEXDH_GEX_GROUP)
m.add_byte(chr(_MSG_KEXDH_GEX_GROUP))
m.add_mpint(self.p)
m.add_mpint(self.g)
self.transport._send_message(m)
@ -157,7 +156,7 @@ class KexGex (object):
self.transport._log(DEBUG, 'Picking p (~ %d bits)' % (self.preferred_bits,))
self.g, self.p = pack.get_modulus(self.min_bits, self.preferred_bits, self.max_bits)
m = Message()
m.add_byte(c_MSG_KEXDH_GEX_GROUP)
m.add_byte(chr(_MSG_KEXDH_GEX_GROUP))
m.add_mpint(self.p)
m.add_mpint(self.g)
self.transport._send_message(m)
@ -176,7 +175,7 @@ class KexGex (object):
# now compute e = g^x mod p
self.e = pow(self.g, self.x, self.p)
m = Message()
m.add_byte(c_MSG_KEXDH_GEX_INIT)
m.add_byte(chr(_MSG_KEXDH_GEX_INIT))
m.add_mpint(self.e)
self.transport._send_message(m)
self.transport._expect_packet(_MSG_KEXDH_GEX_REPLY)
@ -188,7 +187,7 @@ class KexGex (object):
self._generate_x()
self.f = pow(self.g, self.x, self.p)
K = pow(self.e, self.x, self.p)
key = self.transport.get_server_key().asbytes()
key = str(self.transport.get_server_key())
# okay, build up the hash H of (V_C || V_S || I_C || I_S || K_S || min || n || max || p || g || e || f || K)
hm = Message()
hm.add(self.transport.remote_version, self.transport.local_version,
@ -204,19 +203,19 @@ class KexGex (object):
hm.add_mpint(self.e)
hm.add_mpint(self.f)
hm.add_mpint(K)
H = sha1(hm.asbytes()).digest()
H = SHA.new(str(hm)).digest()
self.transport._set_K_H(K, H)
# sign it
sig = self.transport.get_server_key().sign_ssh_data(H)
sig = self.transport.get_server_key().sign_ssh_data(self.transport.rng, H)
# send reply
m = Message()
m.add_byte(c_MSG_KEXDH_GEX_REPLY)
m.add_byte(chr(_MSG_KEXDH_GEX_REPLY))
m.add_string(key)
m.add_mpint(self.f)
m.add_string(sig)
m.add_string(str(sig))
self.transport._send_message(m)
self.transport._activate_outbound()
def _parse_kexdh_gex_reply(self, m):
host_key = m.get_string()
self.f = m.get_mpint()
@ -239,6 +238,6 @@ class KexGex (object):
hm.add_mpint(self.e)
hm.add_mpint(self.f)
hm.add_mpint(K)
self.transport._set_K_H(K, sha1(hm.asbytes()).digest())
self.transport._set_K_H(K, SHA.new(str(hm)).digest())
self.transport._verify_key(host_key, sig)
self.transport._activate_outbound()

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,26 +21,20 @@ Standard SSH key exchange ("kex" if you wanna sound cool). Diffie-Hellman of
1024 bit key halves, using a known "p" prime and "g" generator.
"""
import os
from hashlib import sha1
from Crypto.Hash import SHA
from paramiko.common import *
from paramiko import util
from paramiko.common import max_byte, zero_byte
from paramiko.message import Message
from paramiko.py3compat import byte_chr, long, byte_mask
from paramiko.ssh_exception import SSHException
_MSG_KEXDH_INIT, _MSG_KEXDH_REPLY = range(30, 32)
c_MSG_KEXDH_INIT, c_MSG_KEXDH_REPLY = [byte_chr(c) for c in range(30, 32)]
# draft-ietf-secsh-transport-09.txt, page 17
P = 0xFFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF
P = 0xFFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFFL
G = 2
b7fffffffffffffff = byte_chr(0x7f) + max_byte * 7
b0000000000000000 = zero_byte * 8
class KexGroup1(object):
@ -48,9 +42,9 @@ class KexGroup1(object):
def __init__(self, transport):
self.transport = transport
self.x = long(0)
self.e = long(0)
self.f = long(0)
self.x = 0L
self.e = 0L
self.f = 0L
def start_kex(self):
self._generate_x()
@ -62,7 +56,7 @@ class KexGroup1(object):
# compute e = g^x mod p (where g=2), and send it
self.e = pow(G, self.x, P)
m = Message()
m.add_byte(c_MSG_KEXDH_INIT)
m.add_byte(chr(_MSG_KEXDH_INIT))
m.add_mpint(self.e)
self.transport._send_message(m)
self.transport._expect_packet(_MSG_KEXDH_REPLY)
@ -73,9 +67,11 @@ class KexGroup1(object):
elif not self.transport.server_mode and (ptype == _MSG_KEXDH_REPLY):
return self._parse_kexdh_reply(m)
raise SSHException('KexGroup1 asked to handle packet type %d' % ptype)
### internals...
def _generate_x(self):
# generate an "x" (1 < x < q), where q is (p-1)/2.
# p is a 128-byte (1024-bit) number, where the first 64 bits are 1.
@ -83,10 +79,10 @@ class KexGroup1(object):
# potential x where the first 63 bits are 1, because some of those will be
# larger than q (but this is a tiny tiny subset of potential x).
while 1:
x_bytes = os.urandom(128)
x_bytes = byte_mask(x_bytes[0], 0x7f) + x_bytes[1:]
if (x_bytes[:8] != b7fffffffffffffff and
x_bytes[:8] != b0000000000000000):
x_bytes = self.transport.rng.read(128)
x_bytes = chr(ord(x_bytes[0]) & 0x7f) + x_bytes[1:]
if (x_bytes[:8] != '\x7F\xFF\xFF\xFF\xFF\xFF\xFF\xFF') and \
(x_bytes[:8] != '\x00\x00\x00\x00\x00\x00\x00\x00'):
break
self.x = util.inflate_long(x_bytes)
@ -96,7 +92,7 @@ class KexGroup1(object):
self.f = m.get_mpint()
if (self.f < 1) or (self.f > P - 1):
raise SSHException('Server kex "f" is out of range')
sig = m.get_binary()
sig = m.get_string()
K = pow(self.f, self.x, P)
# okay, build up the hash H of (V_C || V_S || I_C || I_S || K_S || e || f || K)
hm = Message()
@ -106,7 +102,7 @@ class KexGroup1(object):
hm.add_mpint(self.e)
hm.add_mpint(self.f)
hm.add_mpint(K)
self.transport._set_K_H(K, sha1(hm.asbytes()).digest())
self.transport._set_K_H(K, SHA.new(str(hm)).digest())
self.transport._verify_key(host_key, sig)
self.transport._activate_outbound()
@ -116,7 +112,7 @@ class KexGroup1(object):
if (self.e < 1) or (self.e > P - 1):
raise SSHException('Client kex "e" is out of range')
K = pow(self.e, self.x, P)
key = self.transport.get_server_key().asbytes()
key = str(self.transport.get_server_key())
# okay, build up the hash H of (V_C || V_S || I_C || I_S || K_S || e || f || K)
hm = Message()
hm.add(self.transport.remote_version, self.transport.local_version,
@ -125,15 +121,15 @@ class KexGroup1(object):
hm.add_mpint(self.e)
hm.add_mpint(self.f)
hm.add_mpint(K)
H = sha1(hm.asbytes()).digest()
H = SHA.new(str(hm)).digest()
self.transport._set_K_H(K, H)
# sign it
sig = self.transport.get_server_key().sign_ssh_data(H)
sig = self.transport.get_server_key().sign_ssh_data(self.transport.rng, H)
# send reply
m = Message()
m.add_byte(c_MSG_KEXDH_REPLY)
m.add_byte(chr(_MSG_KEXDH_REPLY))
m.add_string(key)
m.add_mpint(self.f)
m.add_string(sig)
m.add_string(str(sig))
self.transport._send_message(m)
self.transport._activate_outbound()

66
paramiko/logging22.py Normal file
View File

@ -0,0 +1,66 @@
# Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Stub out logging on python < 2.3.
"""
DEBUG = 10
INFO = 20
WARNING = 30
ERROR = 40
CRITICAL = 50
def getLogger(name):
return _logger
class logger (object):
def __init__(self):
self.handlers = [ ]
self.level = ERROR
def setLevel(self, level):
self.level = level
def addHandler(self, h):
self.handlers.append(h)
def addFilter(self, filter):
pass
def log(self, level, text):
if level >= self.level:
for h in self.handlers:
h.f.write(text + '\n')
h.f.flush()
class StreamHandler (object):
def __init__(self, f):
self.f = f
def setFormatter(self, f):
pass
class Formatter (object):
def __init__(self, x, y):
pass
_logger = logger()

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,56 +21,52 @@ Implementation of an SSH2 "message".
"""
import struct
import cStringIO
from paramiko import util
from paramiko.common import zero_byte, max_byte, one_byte, asbytes
from paramiko.py3compat import long, BytesIO, u, integer_types
class Message (object):
"""
An SSH2 message is a stream of bytes that encodes some combination of
strings, integers, bools, and infinite-precision integers (known in Python
as longs). This class builds or breaks down such a byte stream.
An SSH2 I{Message} is a stream of bytes that encodes some combination of
strings, integers, bools, and infinite-precision integers (known in python
as I{long}s). This class builds or breaks down such a byte stream.
Normally you don't need to deal with anything this low-level, but it's
exposed for people implementing custom extensions, or features that
paramiko doesn't support yet.
"""
big_int = long(0xff000000)
def __init__(self, content=None):
"""
Create a new SSH2 message.
Create a new SSH2 Message.
:param str content:
the byte stream to use as the message content (passed in only when
decomposing a message).
@param content: the byte stream to use as the Message content (passed
in only when decomposing a Message).
@type content: string
"""
if content is not None:
self.packet = BytesIO(content)
if content != None:
self.packet = cStringIO.StringIO(content)
else:
self.packet = BytesIO()
self.packet = cStringIO.StringIO()
def __str__(self):
"""
Return the byte stream content of this message, as a string/bytes obj.
Return the byte stream content of this Message, as a string.
@return: the contents of this Message.
@rtype: string
"""
return self.asbytes()
return self.packet.getvalue()
def __repr__(self):
"""
Returns a string representation of this object, for debugging.
@rtype: string
"""
return 'paramiko.Message(' + repr(self.packet.getvalue()) + ')'
def asbytes(self):
"""
Return the byte stream content of this Message, as bytes.
"""
return self.packet.getvalue()
def rewind(self):
"""
Rewind the message to the beginning as if no items had been parsed
@ -80,8 +76,11 @@ class Message (object):
def get_remainder(self):
"""
Return the bytes (as a `str`) of this message that haven't already been
parsed and returned.
Return the bytes of this Message that haven't already been parsed and
returned.
@return: a string of the bytes not parsed yet.
@rtype: string
"""
position = self.packet.tell()
remainder = self.packet.read()
@ -90,9 +89,12 @@ class Message (object):
def get_so_far(self):
"""
Returns the `str` bytes of this message that have been parsed and
returned. The string passed into a message's constructor can be
regenerated by concatenating ``get_so_far`` and `get_remainder`.
Returns the bytes of this Message that have been parsed and returned.
The string passed into a Message's constructor can be regenerated by
concatenating C{get_so_far} and L{get_remainder}.
@return: a string of the bytes parsed so far.
@rtype: string
"""
position = self.packet.tell()
self.rewind()
@ -100,51 +102,43 @@ class Message (object):
def get_bytes(self, n):
"""
Return the next ``n`` bytes of the message (as a `str`), without
decomposing into an int, decoded string, etc. Just the raw bytes are
returned. Returns a string of ``n`` zero bytes if there weren't ``n``
bytes remaining in the message.
Return the next C{n} bytes of the Message, without decomposing into
an int, string, etc. Just the raw bytes are returned.
@return: a string of the next C{n} bytes of the Message, or a string
of C{n} zero bytes, if there aren't C{n} bytes remaining.
@rtype: string
"""
b = self.packet.read(n)
max_pad_size = 1 << 20 # Limit padding to 1 MB
if len(b) < n < max_pad_size:
return b + zero_byte * (n - len(b))
if len(b) < n:
return b + '\x00' * (n - len(b))
return b
def get_byte(self):
"""
Return the next byte of the message, without decomposing it. This
is equivalent to `get_bytes(1) <get_bytes>`.
Return the next byte of the Message, without decomposing it. This
is equivalent to L{get_bytes(1)<get_bytes>}.
:return:
the next (`str`) byte of the message, or ``'\000'`` if there aren't
@return: the next byte of the Message, or C{'\000'} if there aren't
any bytes remaining.
@rtype: string
"""
return self.get_bytes(1)
def get_boolean(self):
"""
Fetch a boolean from the stream.
@return: C{True} or C{False} (from the Message).
@rtype: bool
"""
b = self.get_bytes(1)
return b != zero_byte
return b != '\x00'
def get_int(self):
"""
Fetch an int from the stream.
:return: a 32-bit unsigned `int`.
"""
byte = self.get_bytes(1)
if byte == max_byte:
return util.inflate_long(self.get_binary())
byte += self.get_bytes(3)
return struct.unpack('>I', byte)[0]
def get_size(self):
"""
Fetch an int from the stream.
@return: a 32-bit unsigned integer.
@rtype: int
"""
@ -154,7 +148,8 @@ class Message (object):
"""
Fetch a 64-bit int from the stream.
:return: a 64-bit unsigned integer (`long`).
@return: a 64-bit unsigned integer.
@rtype: long
"""
return struct.unpack('>Q', self.get_bytes(8))[0]
@ -162,19 +157,12 @@ class Message (object):
"""
Fetch a long int (mpint) from the stream.
:return: an arbitrary-length integer (`long`).
@return: an arbitrary-length integer.
@rtype: long
"""
return util.inflate_long(self.get_binary())
return util.inflate_long(self.get_string())
def get_string(self):
"""
Fetch a `str` from the stream. This could be a byte string and may
contain unprintable characters. (It's not unheard of for a string to
contain another byte-stream message.)
"""
return self.get_bytes(self.get_size())
def get_text(self):
"""
Fetch a string from the stream. This could be a byte string and may
contain unprintable characters. (It's not unheard of for a string to
@ -183,33 +171,24 @@ class Message (object):
@return: a string.
@rtype: string
"""
return u(self.get_bytes(self.get_size()))
#return self.get_bytes(self.get_size())
def get_binary(self):
"""
Fetch a string from the stream. This could be a byte string and may
contain unprintable characters. (It's not unheard of for a string to
contain another byte-stream Message.)
@return: a string.
@rtype: string
"""
return self.get_bytes(self.get_size())
return self.get_bytes(self.get_int())
def get_list(self):
"""
Fetch a `list` of `strings <str>` from the stream.
These are trivially encoded as comma-separated values in a string.
Fetch a list of strings from the stream. These are trivially encoded
as comma-separated values in a string.
@return: a list of strings.
@rtype: list of strings
"""
return self.get_text().split(',')
return self.get_string().split(',')
def add_bytes(self, b):
"""
Write bytes to the stream, without any formatting.
:param str b: bytes to add
@param b: bytes to add
@type b: str
"""
self.packet.write(b)
return self
@ -218,7 +197,8 @@ class Message (object):
"""
Write a single byte to the stream, without any formatting.
:param str b: byte to add
@param b: byte to add
@type b: str
"""
self.packet.write(b)
return self
@ -227,41 +207,31 @@ class Message (object):
"""
Add a boolean value to the stream.
:param bool b: boolean value to add
@param b: boolean value to add
@type b: bool
"""
if b:
self.packet.write(one_byte)
self.add_byte('\x01')
else:
self.packet.write(zero_byte)
return self
def add_size(self, n):
"""
Add an integer to the stream.
:param int n: integer to add
"""
self.packet.write(struct.pack('>I', n))
self.add_byte('\x00')
return self
def add_int(self, n):
"""
Add an integer to the stream.
:param int n: integer to add
@param n: integer to add
@type n: int
"""
if n >= Message.big_int:
self.packet.write(max_byte)
self.add_string(util.deflate_long(n))
else:
self.packet.write(struct.pack('>I', n))
self.packet.write(struct.pack('>I', n))
return self
def add_int64(self, n):
"""
Add a 64-bit int to the stream.
:param long n: long int to add
@param n: long int to add
@type n: long
"""
self.packet.write(struct.pack('>Q', n))
return self
@ -271,7 +241,8 @@ class Message (object):
Add a long int to the stream, encoded as an infinite-precision
integer. This method only works on positive numbers.
:param long z: long int to add
@param z: long int to add
@type z: long
"""
self.add_string(util.deflate_long(z))
return self
@ -280,10 +251,10 @@ class Message (object):
"""
Add a string to the stream.
:param str s: string to add
@param s: string to add
@type s: str
"""
s = asbytes(s)
self.add_size(len(s))
self.add_int(len(s))
self.packet.write(s)
return self
@ -293,30 +264,38 @@ class Message (object):
a single string of values separated by commas. (Yes, really, that's
how SSH2 does it.)
:param list l: list of strings to add
@param l: list of strings to add
@type l: list(str)
"""
self.add_string(','.join(l))
return self
def _add(self, i):
if type(i) is bool:
return self.add_boolean(i)
elif isinstance(i, integer_types):
if type(i) is str:
return self.add_string(i)
elif type(i) is int:
return self.add_int(i)
elif type(i) is long:
if i > 0xffffffffL:
return self.add_mpint(i)
else:
return self.add_int(i)
elif type(i) is bool:
return self.add_boolean(i)
elif type(i) is list:
return self.add_list(i)
else:
return self.add_string(i)
raise Exception('Unknown type')
def add(self, *seq):
"""
Add a sequence of items to the stream. The values are encoded based
on their type: str, int, bool, list, or long.
.. warning::
Longs are encoded non-deterministically. Don't use this method.
:param seq: the sequence of items
@param seq: the sequence of items
@type seq: sequence
@bug: longs are encoded non-deterministically. Don't use this method.
"""
for item in seq:
self._add(item)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,27 +17,33 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Packet handling
Packetizer.
"""
import errno
import os
import select
import socket
import struct
import threading
import time
from hmac import HMAC
from paramiko.common import *
from paramiko import util
from paramiko.common import linefeed_byte, cr_byte_value, asbytes, MSG_NAMES, \
DEBUG, xffffffff, zero_byte
from paramiko.py3compat import u, byte_ord
from paramiko.ssh_exception import SSHException, ProxyCommandFailure
from paramiko.ssh_exception import SSHException
from paramiko.message import Message
got_r_hmac = False
try:
import r_hmac
got_r_hmac = True
except ImportError:
pass
def compute_hmac(key, message, digest_class):
return HMAC(key, message, digest_class).digest()
if got_r_hmac:
return r_hmac.HMAC(key, message, digest_class).digest()
from Crypto.Hash import HMAC
return HMAC.HMAC(key, message, digest_class).digest()
class NeedRekeyException (Exception):
@ -54,8 +60,8 @@ class Packetizer (object):
REKEY_PACKETS = pow(2, 29)
REKEY_BYTES = pow(2, 29)
REKEY_PACKETS_OVERFLOW_MAX = pow(2, 29) # Allow receiving this many packets after a re-key request before terminating
REKEY_BYTES_OVERFLOW_MAX = pow(2, 29) # Allow receiving this many bytes after a re-key request before terminating
REKEY_PACKETS_OVERFLOW_MAX = pow(2,29) # Allow receiving this many packets after a re-key request before terminating
REKEY_BYTES_OVERFLOW_MAX = pow(2,29) # Allow receiving this many bytes after a re-key request before terminating
def __init__(self, socket):
self.__socket = socket
@ -64,7 +70,7 @@ class Packetizer (object):
self.__dump_packets = False
self.__need_rekey = False
self.__init_count = 0
self.__remainder = bytes()
self.__remainder = ''
# used for noticing when to re-key:
self.__sent_bytes = 0
@ -81,15 +87,14 @@ class Packetizer (object):
self.__mac_size_in = 0
self.__block_engine_out = None
self.__block_engine_in = None
self.__sdctr_out = False
self.__mac_engine_out = None
self.__mac_engine_in = None
self.__mac_key_out = bytes()
self.__mac_key_in = bytes()
self.__mac_key_out = ''
self.__mac_key_in = ''
self.__compress_engine_out = None
self.__compress_engine_in = None
self.__sequence_number_out = 0
self.__sequence_number_in = 0
self.__sequence_number_out = 0L
self.__sequence_number_in = 0L
# lock around outbound writes (packet computation)
self.__write_lock = threading.RLock()
@ -101,16 +106,15 @@ class Packetizer (object):
def set_log(self, log):
"""
Set the Python log object to use for logging.
Set the python log object to use for logging.
"""
self.__logger = log
def set_outbound_cipher(self, block_engine, block_size, mac_engine, mac_size, mac_key, sdctr=False):
def set_outbound_cipher(self, block_engine, block_size, mac_engine, mac_size, mac_key):
"""
Switch outbound data cipher.
"""
self.__block_engine_out = block_engine
self.__sdctr_out = sdctr
self.__block_size_out = block_size
self.__mac_engine_out = mac_engine
self.__mac_size_out = mac_size
@ -166,15 +170,17 @@ class Packetizer (object):
def need_rekey(self):
"""
Returns ``True`` if a new set of keys needs to be negotiated. This
Returns C{True} if a new set of keys needs to be negotiated. This
will be triggered during a packet read or write, so it should be
checked after every read or write, or at least after every few.
@return: C{True} if a new set of keys needs to be negotiated
"""
return self.__need_rekey
def set_keepalive(self, interval, callback):
"""
Turn on/off the callback keepalive. If ``interval`` seconds pass with
Turn on/off the callback keepalive. If C{interval} seconds pass with
no data read from or written to the socket, the callback will be
executed and the timer will be reset.
"""
@ -186,18 +192,21 @@ class Packetizer (object):
"""
Read as close to N bytes as possible, blocking as long as necessary.
:param int n: number of bytes to read
:return: the data read, as a `str`
:raises EOFError:
if the socket was closed before all the bytes could be read
@param n: number of bytes to read
@type n: int
@return: the data read
@rtype: str
@raise EOFError: if the socket was closed before all the bytes could
be read
"""
out = bytes()
out = ''
# handle over-reading from reading the banner line
if len(self.__remainder) > 0:
out = self.__remainder[:n]
self.__remainder = self.__remainder[n:]
n -= len(out)
if PY22:
return self._py22_read_all(n, out)
while n > 0:
got_timeout = False
try:
@ -208,7 +217,7 @@ class Packetizer (object):
n -= len(x)
except socket.timeout:
got_timeout = True
except socket.error as e:
except socket.error, e:
# on Linux, sometimes instead of socket.timeout, we get
# EAGAIN. this is a bug in recent (> 2.6.9) kernels but
# we need to work around it.
@ -237,7 +246,7 @@ class Packetizer (object):
n = self.__socket.send(out)
except socket.timeout:
retry_write = True
except socket.error as e:
except socket.error, e:
if (type(e.args) is tuple) and (len(e.args) > 0) and (e.args[0] == errno.EAGAIN):
retry_write = True
elif (type(e.args) is tuple) and (len(e.args) > 0) and (e.args[0] == errno.EINTR):
@ -245,8 +254,6 @@ class Packetizer (object):
retry_write = True
else:
n = -1
except ProxyCommandFailure:
raise # so it doesn't get swallowed by the below catchall
except Exception:
# could be: (32, 'Broken pipe')
n = -1
@ -267,22 +274,22 @@ class Packetizer (object):
line, so it's okay to attempt large reads.
"""
buf = self.__remainder
while not linefeed_byte in buf:
while not '\n' in buf:
buf += self._read_timeout(timeout)
n = buf.index(linefeed_byte)
self.__remainder = buf[n + 1:]
n = buf.index('\n')
self.__remainder = buf[n+1:]
buf = buf[:n]
if (len(buf) > 0) and (buf[-1] == cr_byte_value):
if (len(buf) > 0) and (buf[-1] == '\r'):
buf = buf[:-1]
return u(buf)
return buf
def send_message(self, data):
"""
Write a block of data using the current cipher, as an SSH block.
"""
# encrypt this sucka
data = asbytes(data)
cmd = byte_ord(data[0])
data = str(data)
cmd = ord(data[0])
if cmd in MSG_NAMES:
cmd_name = MSG_NAMES[cmd]
else:
@ -296,21 +303,21 @@ class Packetizer (object):
if self.__dump_packets:
self._log(DEBUG, 'Write packet <%s>, length %d' % (cmd_name, orig_len))
self._log(DEBUG, util.format_binary(packet, 'OUT: '))
if self.__block_engine_out is not None:
if self.__block_engine_out != None:
out = self.__block_engine_out.encrypt(packet)
else:
out = packet
# + mac
if self.__block_engine_out is not None:
if self.__block_engine_out != None:
payload = struct.pack('>I', self.__sequence_number_out) + packet
out += compute_hmac(self.__mac_key_out, payload, self.__mac_engine_out)[:self.__mac_size_out]
self.__sequence_number_out = (self.__sequence_number_out + 1) & xffffffff
self.__sequence_number_out = (self.__sequence_number_out + 1) & 0xffffffffL
self.write_all(out)
self.__sent_bytes += len(out)
self.__sent_packets += 1
if (self.__sent_packets >= self.REKEY_PACKETS or self.__sent_bytes >= self.REKEY_BYTES)\
and not self.__need_rekey:
if ((self.__sent_packets >= self.REKEY_PACKETS) or (self.__sent_bytes >= self.REKEY_BYTES)) \
and not self.__need_rekey:
# only ask once for rekeying
self._log(DEBUG, 'Rekeying (hit %d packets, %d bytes sent)' %
(self.__sent_packets, self.__sent_bytes))
@ -325,14 +332,14 @@ class Packetizer (object):
Only one thread should ever be in this function (no other locking is
done).
:raises SSHException: if the packet is mangled
:raises NeedRekeyException: if the transport should rekey
@raise SSHException: if the packet is mangled
@raise NeedRekeyException: if the transport should rekey
"""
header = self.read_all(self.__block_size_in, check_rekey=True)
if self.__block_engine_in is not None:
if self.__block_engine_in != None:
header = self.__block_engine_in.decrypt(header)
if self.__dump_packets:
self._log(DEBUG, util.format_binary(header, 'IN: '))
self._log(DEBUG, util.format_binary(header, 'IN: '));
packet_size = struct.unpack('>I', header[:4])[0]
# leftover contains decrypted bytes from the first block (after the length field)
leftover = header[4:]
@ -341,21 +348,21 @@ class Packetizer (object):
buf = self.read_all(packet_size + self.__mac_size_in - len(leftover))
packet = buf[:packet_size - len(leftover)]
post_packet = buf[packet_size - len(leftover):]
if self.__block_engine_in is not None:
if self.__block_engine_in != None:
packet = self.__block_engine_in.decrypt(packet)
if self.__dump_packets:
self._log(DEBUG, util.format_binary(packet, 'IN: '))
self._log(DEBUG, util.format_binary(packet, 'IN: '));
packet = leftover + packet
if self.__mac_size_in > 0:
mac = post_packet[:self.__mac_size_in]
mac_payload = struct.pack('>II', self.__sequence_number_in, packet_size) + packet
my_mac = compute_hmac(self.__mac_key_in, mac_payload, self.__mac_engine_in)[:self.__mac_size_in]
if not util.constant_time_bytes_eq(my_mac, mac):
if my_mac != mac:
raise SSHException('Mismatched MAC')
padding = byte_ord(packet[0])
padding = ord(packet[0])
payload = packet[1:packet_size - padding]
if self.__dump_packets:
self._log(DEBUG, 'Got payload (%d bytes, %d padding)' % (packet_size, padding))
@ -364,7 +371,7 @@ class Packetizer (object):
msg = Message(payload[1:])
msg.seqno = self.__sequence_number_in
self.__sequence_number_in = (self.__sequence_number_in + 1) & xffffffff
self.__sequence_number_in = (self.__sequence_number_in + 1) & 0xffffffffL
# check for rekey
raw_packet_size = packet_size + self.__mac_size_in + 4
@ -387,7 +394,7 @@ class Packetizer (object):
self.__received_packets_overflow = 0
self._trigger_rekey()
cmd = byte_ord(payload[0])
cmd = ord(payload[0])
if cmd in MSG_NAMES:
cmd_name = MSG_NAMES[cmd]
else:
@ -396,8 +403,10 @@ class Packetizer (object):
self._log(DEBUG, 'Read packet <%s>, length %d' % (cmd_name, len(payload)))
return cmd, msg
########## protected
def _log(self, level, msg):
if self.__logger is None:
return
@ -409,7 +418,7 @@ class Packetizer (object):
def _check_keepalive(self):
if (not self.__keepalive_interval) or (not self.__block_engine_out) or \
self.__need_rekey:
self.__need_rekey:
# wait till we're encrypting, and not in the middle of rekeying
return
now = time.time()
@ -417,7 +426,40 @@ class Packetizer (object):
self.__keepalive_callback()
self.__keepalive_last = now
def _py22_read_all(self, n, out):
while n > 0:
r, w, e = select.select([self.__socket], [], [], 0.1)
if self.__socket not in r:
if self.__closed:
raise EOFError()
self._check_keepalive()
else:
x = self.__socket.recv(n)
if len(x) == 0:
raise EOFError()
out += x
n -= len(x)
return out
def _py22_read_timeout(self, timeout):
start = time.time()
while True:
r, w, e = select.select([self.__socket], [], [], 0.1)
if self.__socket in r:
x = self.__socket.recv(1)
if len(x) == 0:
raise EOFError()
break
if self.__closed:
raise EOFError()
now = time.time()
if now - start >= timeout:
raise socket.timeout()
return x
def _read_timeout(self, timeout):
if PY22:
return self._py22_read_timeout(timeout)
start = time.time()
while True:
try:
@ -427,9 +469,9 @@ class Packetizer (object):
break
except socket.timeout:
pass
except EnvironmentError as e:
if (type(e.args) is tuple and len(e.args) > 0 and
e.args[0] == errno.EINTR):
except EnvironmentError, e:
if ((type(e.args) is tuple) and (len(e.args) > 0) and
(e.args[0] == errno.EINTR)):
pass
else:
raise
@ -446,12 +488,12 @@ class Packetizer (object):
padding = 3 + bsize - ((len(payload) + 8) % bsize)
packet = struct.pack('>IB', len(payload) + padding + 1, padding)
packet += payload
if self.__sdctr_out or self.__block_engine_out is None:
# cute trick i caught openssh doing: if we're not encrypting or SDCTR mode (RFC4344),
# don't waste random bytes for the padding
packet += (zero_byte * padding)
if self.__block_engine_out is not None:
packet += rng.read(padding)
else:
packet += os.urandom(padding)
# cute trick i caught openssh doing: if we're not encrypting,
# don't waste random bytes for the padding
packet += (chr(0) * padding)
return packet
def _trigger_rekey(self):

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,12 +17,11 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Abstraction of a one-way pipe where the read end can be used in
`select.select`. Normally this is trivial, but Windows makes it nearly
impossible.
Abstraction of a one-way pipe where the read end can be used in select().
Normally this is trivial, but Windows makes it nearly impossible.
The pipe acts like an Event, which can be set or cleared. When set, the pipe
will trigger as readable in `select <select.select>`.
will trigger as readable in select().
"""
import sys
@ -30,7 +29,7 @@ import os
import socket
def make_pipe():
def make_pipe ():
if sys.platform[:3] != 'win':
p = PosixPipe()
else:
@ -39,34 +38,34 @@ def make_pipe():
class PosixPipe (object):
def __init__(self):
def __init__ (self):
self._rfd, self._wfd = os.pipe()
self._set = False
self._forever = False
self._closed = False
def close(self):
def close (self):
os.close(self._rfd)
os.close(self._wfd)
# used for unit tests:
self._closed = True
def fileno(self):
def fileno (self):
return self._rfd
def clear(self):
def clear (self):
if not self._set or self._forever:
return
os.read(self._rfd, 1)
self._set = False
def set(self):
def set (self):
if self._set or self._closed:
return
self._set = True
os.write(self._wfd, b'*')
os.write(self._wfd, '*')
def set_forever(self):
def set_forever (self):
self._forever = True
self.set()
@ -76,7 +75,7 @@ class WindowsPipe (object):
On Windows, only an OS-level "WinSock" may be used in select(), but reads
and writes must be to the actual socket object.
"""
def __init__(self):
def __init__ (self):
serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
serv.bind(('127.0.0.1', 0))
serv.listen(1)
@ -91,13 +90,13 @@ class WindowsPipe (object):
self._forever = False
self._closed = False
def close(self):
def close (self):
self._rsock.close()
self._wsock.close()
# used for unit tests:
self._closed = True
def fileno(self):
def fileno (self):
return self._rsock.fileno()
def clear (self):
@ -110,7 +109,7 @@ class WindowsPipe (object):
if self._set or self._closed:
return
self._set = True
self._wsock.send(b'*')
self._wsock.send('*')
def set_forever (self):
self._forever = True

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -23,13 +23,13 @@ Common API for all public keys.
import base64
from binascii import hexlify, unhexlify
import os
from hashlib import md5
from Crypto.Hash import MD5
from Crypto.Cipher import DES3, AES
from paramiko.common import *
from paramiko import util
from paramiko.common import o600, zero_byte
from paramiko.py3compat import u, encodebytes, decodebytes, b
from paramiko.message import Message
from paramiko.ssh_exception import SSHException, PasswordRequiredException
@ -40,39 +40,40 @@ class PKey (object):
# known encryption types for private key files:
_CIPHER_TABLE = {
'AES-128-CBC': {'cipher': AES, 'keysize': 16, 'blocksize': 16, 'mode': AES.MODE_CBC},
'DES-EDE3-CBC': {'cipher': DES3, 'keysize': 24, 'blocksize': 8, 'mode': DES3.MODE_CBC},
'AES-128-CBC': { 'cipher': AES, 'keysize': 16, 'blocksize': 16, 'mode': AES.MODE_CBC },
'DES-EDE3-CBC': { 'cipher': DES3, 'keysize': 24, 'blocksize': 8, 'mode': DES3.MODE_CBC },
}
def __init__(self, msg=None, data=None):
"""
Create a new instance of this public key type. If ``msg`` is given,
Create a new instance of this public key type. If C{msg} is given,
the key's public part(s) will be filled in from the message. If
``data`` is given, the key's public part(s) will be filled in from
C{data} is given, the key's public part(s) will be filled in from
the string.
:param .Message msg:
an optional SSH `.Message` containing a public key of this type.
:param str data: an optional string containing a public key of this type
@param msg: an optional SSH L{Message} containing a public key of this
type.
@type msg: L{Message}
@param data: an optional string containing a public key of this type
@type data: str
:raises SSHException:
if a key cannot be created from the ``data`` or ``msg`` given, or
no key was passed in.
@raise SSHException: if a key cannot be created from the C{data} or
C{msg} given, or no key was passed in.
"""
pass
def asbytes(self):
"""
Return a string of an SSH `.Message` made up of the public part(s) of
this key. This string is suitable for passing to `__init__` to
re-create the key object later.
"""
return bytes()
def __str__(self):
return self.asbytes()
"""
Return a string of an SSH L{Message} made up of the public part(s) of
this key. This string is suitable for passing to L{__init__} to
re-create the key object later.
@return: string representation of an SSH key message.
@rtype: str
"""
return ''
# noinspection PyUnresolvedReferences
def __cmp__(self, other):
"""
Compare this key to another. Returns 0 if this key is equivalent to
@ -80,24 +81,24 @@ class PKey (object):
of the key are compared, so a public key will compare equal to its
corresponding private key.
:param .Pkey other: key to compare to.
@param other: key to compare to.
@type other: L{PKey}
@return: 0 if the two keys are equivalent, non-0 otherwise.
@rtype: int
"""
hs = hash(self)
ho = hash(other)
if hs != ho:
return cmp(hs, ho)
return cmp(self.asbytes(), other.asbytes())
def __eq__(self, other):
return hash(self) == hash(other)
return cmp(str(self), str(other))
def get_name(self):
"""
Return the name of this private key implementation.
:return:
name of this private key type, in SSH terminology, as a `str` (for
example, ``"ssh-rsa"``).
@return: name of this private key type, in SSH terminology (for
example, C{"ssh-rsa"}).
@rtype: str
"""
return ''
@ -106,14 +107,18 @@ class PKey (object):
Return the number of significant bits in this key. This is useful
for judging the relative security of a key.
:return: bits in the key (as an `int`)
@return: bits in the key.
@rtype: int
"""
return 0
def can_sign(self):
"""
Return ``True`` if this key has the private part necessary for signing
Return C{True} if this key has the private part necessary for signing
data.
@return: C{True} if this is a private key.
@rtype: bool
"""
return False
@ -122,11 +127,11 @@ class PKey (object):
Return an MD5 fingerprint of the public part of this key. Nothing
secret is revealed.
:return:
a 16-byte `string <str>` (binary) of the MD5 fingerprint, in SSH
@return: a 16-byte string (binary) of the MD5 fingerprint, in SSH
format.
@rtype: str
"""
return md5(self.asbytes()).digest()
return MD5.new(str(self)).digest()
def get_base64(self):
"""
@ -134,50 +139,61 @@ class PKey (object):
secret is revealed. This format is compatible with that used to store
public key files or recognized host keys.
:return: a base64 `string <str>` containing the public part of the key.
@return: a base64 string containing the public part of the key.
@rtype: str
"""
return u(encodebytes(self.asbytes())).replace('\n', '')
return base64.encodestring(str(self)).replace('\n', '')
def sign_ssh_data(self, data):
def sign_ssh_data(self, rng, data):
"""
Sign a blob of data with this private key, and return a `.Message`
Sign a blob of data with this private key, and return a L{Message}
representing an SSH signature message.
:param str data: the data to sign.
:return: an SSH signature `message <.Message>`.
@param rng: a secure random number generator.
@type rng: L{Crypto.Util.rng.RandomPool}
@param data: the data to sign.
@type data: str
@return: an SSH signature message.
@rtype: L{Message}
"""
return bytes()
return ''
def verify_ssh_sig(self, data, msg):
"""
Given a blob of data, and an SSH message representing a signature of
that data, verify that it was signed with this key.
:param str data: the data that was signed.
:param .Message msg: an SSH signature message
:return:
``True`` if the signature verifies correctly; ``False`` otherwise.
@param data: the data that was signed.
@type data: str
@param msg: an SSH signature message
@type msg: L{Message}
@return: C{True} if the signature verifies correctly; C{False}
otherwise.
@rtype: boolean
"""
return False
def from_private_key_file(cls, filename, password=None):
"""
Create a key object by reading a private key file. If the private
key is encrypted and ``password`` is not ``None``, the given password
will be used to decrypt the key (otherwise `.PasswordRequiredException`
is thrown). Through the magic of Python, this factory method will
exist in all subclasses of PKey (such as `.RSAKey` or `.DSSKey`), but
key is encrypted and C{password} is not C{None}, the given password
will be used to decrypt the key (otherwise L{PasswordRequiredException}
is thrown). Through the magic of python, this factory method will
exist in all subclasses of PKey (such as L{RSAKey} or L{DSSKey}), but
is useless on the abstract PKey class.
:param str filename: name of the file to read
:param str password: an optional password to use to decrypt the key file,
@param filename: name of the file to read
@type filename: str
@param password: an optional password to use to decrypt the key file,
if it's encrypted
:return: a new `.PKey` based on the given private key
@type password: str
@return: a new key object based on the given private key
@rtype: L{PKey}
:raises IOError: if there was an error reading the file
:raises PasswordRequiredException: if the private key file is
encrypted, and ``password`` is ``None``
:raises SSHException: if the key file is invalid
@raise IOError: if there was an error reading the file
@raise PasswordRequiredException: if the private key file is
encrypted, and C{password} is C{None}
@raise SSHException: if the key file is invalid
"""
key = cls(filename=filename, password=password)
return key
@ -186,19 +202,22 @@ class PKey (object):
def from_private_key(cls, file_obj, password=None):
"""
Create a key object by reading a private key from a file (or file-like)
object. If the private key is encrypted and ``password`` is not ``None``,
object. If the private key is encrypted and C{password} is not C{None},
the given password will be used to decrypt the key (otherwise
`.PasswordRequiredException` is thrown).
L{PasswordRequiredException} is thrown).
:param file file_obj: the file to read from
:param str password:
an optional password to use to decrypt the key, if it's encrypted
:return: a new `.PKey` based on the given private key
@param file_obj: the file to read from
@type file_obj: file
@param password: an optional password to use to decrypt the key, if it's
encrypted
@type password: str
@return: a new key object based on the given private key
@rtype: L{PKey}
:raises IOError: if there was an error reading the key
:raises PasswordRequiredException: if the private key file is encrypted,
and ``password`` is ``None``
:raises SSHException: if the key file is invalid
@raise IOError: if there was an error reading the key
@raise PasswordRequiredException: if the private key file is encrypted,
and C{password} is C{None}
@raise SSHException: if the key file is invalid
"""
key = cls(file_obj=file_obj, password=password)
return key
@ -207,52 +226,59 @@ class PKey (object):
def write_private_key_file(self, filename, password=None):
"""
Write private key contents into a file. If the password is not
``None``, the key is encrypted before writing.
C{None}, the key is encrypted before writing.
:param str filename: name of the file to write
:param str password:
an optional password to use to encrypt the key file
@param filename: name of the file to write
@type filename: str
@param password: an optional password to use to encrypt the key file
@type password: str
:raises IOError: if there was an error writing the file
:raises SSHException: if the key is invalid
@raise IOError: if there was an error writing the file
@raise SSHException: if the key is invalid
"""
raise Exception('Not implemented in PKey')
def write_private_key(self, file_obj, password=None):
"""
Write private key contents into a file (or file-like) object. If the
password is not ``None``, the key is encrypted before writing.
password is not C{None}, the key is encrypted before writing.
:param file file_obj: the file object to write into
:param str password: an optional password to use to encrypt the key
@param file_obj: the file object to write into
@type file_obj: file
@param password: an optional password to use to encrypt the key
@type password: str
:raises IOError: if there was an error writing to the file
:raises SSHException: if the key is invalid
@raise IOError: if there was an error writing to the file
@raise SSHException: if the key is invalid
"""
raise Exception('Not implemented in PKey')
def _read_private_key_file(self, tag, filename, password=None):
"""
Read an SSH2-format private key file, looking for a string of the type
``"BEGIN xxx PRIVATE KEY"`` for some ``xxx``, base64-decode the text we
C{"BEGIN xxx PRIVATE KEY"} for some C{xxx}, base64-decode the text we
find, and return it as a string. If the private key is encrypted and
``password`` is not ``None``, the given password will be used to decrypt
the key (otherwise `.PasswordRequiredException` is thrown).
C{password} is not C{None}, the given password will be used to decrypt
the key (otherwise L{PasswordRequiredException} is thrown).
:param str tag: ``"RSA"`` or ``"DSA"``, the tag used to mark the data block.
:param str filename: name of the file to read.
:param str password:
an optional password to use to decrypt the key file, if it's
encrypted.
:return: data blob (`str`) that makes up the private key.
@param tag: C{"RSA"} or C{"DSA"}, the tag used to mark the data block.
@type tag: str
@param filename: name of the file to read.
@type filename: str
@param password: an optional password to use to decrypt the key file,
if it's encrypted.
@type password: str
@return: data blob that makes up the private key.
@rtype: str
:raises IOError: if there was an error reading the file.
:raises PasswordRequiredException: if the private key file is
encrypted, and ``password`` is ``None``.
:raises SSHException: if the key file is invalid.
@raise IOError: if there was an error reading the file.
@raise PasswordRequiredException: if the private key file is
encrypted, and C{password} is C{None}.
@raise SSHException: if the key file is invalid.
"""
with open(filename, 'r') as f:
data = self._read_private_key(tag, f, password)
f = open(filename, 'r')
data = self._read_private_key(tag, f, password)
f.close()
return data
def _read_private_key(self, tag, f, password=None):
@ -277,8 +303,8 @@ class PKey (object):
end += 1
# if we trudged to the end of the file, just try to cope.
try:
data = decodebytes(b(''.join(lines[start:end])))
except base64.binascii.Error as e:
data = base64.decodestring(''.join(lines[start:end]))
except base64.binascii.Error, e:
raise SSHException('base64 decoding error: ' + str(e))
if 'proc-type' not in headers:
# unencryped: done
@ -289,7 +315,7 @@ class PKey (object):
try:
encryption_type, saltstr = headers['dek-info'].split(',')
except:
raise SSHException("Can't parse DEK-info in private key file")
raise SSHException('Can\'t parse DEK-info in private key file')
if encryption_type not in self._CIPHER_TABLE:
raise SSHException('Unknown private key cipher "%s"' % encryption_type)
# if no password was passed in, raise an exception pointing out that we need one
@ -298,8 +324,8 @@ class PKey (object):
cipher = self._CIPHER_TABLE[encryption_type]['cipher']
keysize = self._CIPHER_TABLE[encryption_type]['keysize']
mode = self._CIPHER_TABLE[encryption_type]['mode']
salt = unhexlify(b(saltstr))
key = util.generate_key_bytes(md5, salt, password, keysize)
salt = unhexlify(saltstr)
key = util.generate_key_bytes(MD5, salt, password, keysize)
return cipher.new(key, mode, salt).decrypt(data)
def _write_private_key_file(self, tag, filename, data, password=None):
@ -309,42 +335,47 @@ class PKey (object):
a trivially-encoded format (base64) which is completely insecure. If
a password is given, DES-EDE3-CBC is used.
:param str tag: ``"RSA"`` or ``"DSA"``, the tag used to mark the data block.
:param file filename: name of the file to write.
:param str data: data blob that makes up the private key.
:param str password: an optional password to use to encrypt the file.
@param tag: C{"RSA"} or C{"DSA"}, the tag used to mark the data block.
@type tag: str
@param filename: name of the file to write.
@type filename: str
@param data: data blob that makes up the private key.
@type data: str
@param password: an optional password to use to encrypt the file.
@type password: str
:raises IOError: if there was an error writing the file.
@raise IOError: if there was an error writing the file.
"""
with open(filename, 'w', o600) as f:
# grrr... the mode doesn't always take hold
os.chmod(filename, o600)
self._write_private_key(tag, f, data, password)
f = open(filename, 'w', 0600)
# grrr... the mode doesn't always take hold
os.chmod(filename, 0600)
self._write_private_key(tag, f, data, password)
f.close()
def _write_private_key(self, tag, f, data, password=None):
f.write('-----BEGIN %s PRIVATE KEY-----\n' % tag)
if password is not None:
# since we only support one cipher here, use it
cipher_name = list(self._CIPHER_TABLE.keys())[0]
cipher_name = self._CIPHER_TABLE.keys()[0]
cipher = self._CIPHER_TABLE[cipher_name]['cipher']
keysize = self._CIPHER_TABLE[cipher_name]['keysize']
blocksize = self._CIPHER_TABLE[cipher_name]['blocksize']
mode = self._CIPHER_TABLE[cipher_name]['mode']
salt = os.urandom(16)
key = util.generate_key_bytes(md5, salt, password, keysize)
salt = rng.read(8)
key = util.generate_key_bytes(MD5, salt, password, keysize)
if len(data) % blocksize != 0:
n = blocksize - len(data) % blocksize
#data += os.urandom(n)
#data += rng.read(n)
# that would make more sense ^, but it confuses openssh.
data += zero_byte * n
data += '\0' * n
data = cipher.new(key, mode, salt).encrypt(data)
f.write('Proc-Type: 4,ENCRYPTED\n')
f.write('DEK-Info: %s,%s\n' % (cipher_name, u(hexlify(salt)).upper()))
f.write('DEK-Info: %s,%s\n' % (cipher_name, hexlify(salt).upper()))
f.write('\n')
s = u(encodebytes(data))
s = base64.encodestring(data)
# re-wrap to 64-char lines
s = ''.join(s.split('\n'))
s = '\n'.join([s[i: i + 64] for i in range(0, len(s), 64)])
s = '\n'.join([s[i : i+64] for i in range(0, len(s), 64)])
f.write(s)
f.write('\n')
f.write('-----END %s PRIVATE KEY-----\n' % tag)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -20,17 +20,33 @@
Utility functions for dealing with primes.
"""
import os
from Crypto.Util import number
from paramiko import util
from paramiko.py3compat import byte_mask, long
from paramiko.ssh_exception import SSHException
def _roll_random(n):
"""returns a random # from 0 to N-1"""
bits = util.bit_length(n - 1)
byte_count = (bits + 7) // 8
def _generate_prime(bits, rng):
"primtive attempt at prime generation"
hbyte_mask = pow(2, bits % 8) - 1
while True:
# loop catches the case where we increment n into a higher bit-range
x = rng.read((bits+7) // 8)
if hbyte_mask > 0:
x = chr(ord(x[0]) & hbyte_mask) + x[1:]
n = util.inflate_long(x, 1)
n |= 1
n |= (1 << (bits - 1))
while not number.isPrime(n):
n += 2
if util.bit_length(n) == bits:
break
return n
def _roll_random(rng, n):
"returns a random # from 0 to N-1"
bits = util.bit_length(n-1)
bytes = (bits + 7) // 8
hbyte_mask = pow(2, bits % 8) - 1
# so here's the plan:
@ -40,9 +56,9 @@ def _roll_random(n):
# fits, so i can't guarantee that this loop will ever finish, but the odds
# of it looping forever should be infinitesimal.
while True:
x = os.urandom(byte_count)
x = rng.read(bytes)
if hbyte_mask > 0:
x = byte_mask(x[0], hbyte_mask) + x[1:]
x = chr(ord(x[0]) & hbyte_mask) + x[1:]
num = util.inflate_long(x, 1)
if num < n:
break
@ -55,10 +71,11 @@ class ModulusPack (object):
on systems that have such a file.
"""
def __init__(self):
def __init__(self, rpool):
# pack is a hash of: bits -> [ (generator, modulus) ... ]
self.pack = {}
self.discarded = []
self.rng = rpool
def _parse_modulus(self, line):
timestamp, mod_type, tests, tries, size, generator, modulus = line.split()
@ -92,27 +109,29 @@ class ModulusPack (object):
def read_file(self, filename):
"""
:raises IOError: passed from any file operations that fail.
@raise IOError: passed from any file operations that fail.
"""
self.pack = {}
with open(filename, 'r') as f:
for line in f:
line = line.strip()
if (len(line) == 0) or (line[0] == '#'):
continue
try:
self._parse_modulus(line)
except:
continue
f = open(filename, 'r')
for line in f:
line = line.strip()
if (len(line) == 0) or (line[0] == '#'):
continue
try:
self._parse_modulus(line)
except:
continue
f.close()
def get_modulus(self, min, prefer, max):
bitsizes = sorted(self.pack.keys())
bitsizes = self.pack.keys()
bitsizes.sort()
if len(bitsizes) == 0:
raise SSHException('no moduli available')
good = -1
# find nearest bitsize >= preferred
for b in bitsizes:
if (b >= prefer) and (b < max) and (b < good or good == -1):
if (b >= prefer) and (b < max) and ((b < good) or (good == -1)):
good = b
# if that failed, find greatest bitsize >= min
if good == -1:
@ -128,5 +147,5 @@ class ModulusPack (object):
if min > good:
good = bitsizes[-1]
# now pick a random modulus of this bitsize
n = _roll_random(len(self.pack[good]))
n = _roll_random(self.rng, len(self.pack[good]))
return self.pack[good][n]

View File

@ -1,105 +0,0 @@
# Copyright (C) 2012 Yipit, Inc <coders@yipit.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
from datetime import datetime
import os
from shlex import split as shlsplit
import signal
from subprocess import Popen, PIPE
from select import select
import socket
from paramiko.ssh_exception import ProxyCommandFailure
class ProxyCommand(object):
"""
Wraps a subprocess running ProxyCommand-driven programs.
This class implements a the socket-like interface needed by the
`.Transport` and `.Packetizer` classes. Using this class instead of a
regular socket makes it possible to talk with a Popen'd command that will
proxy traffic between the client and a server hosted in another machine.
"""
def __init__(self, command_line):
"""
Create a new CommandProxy instance. The instance created by this
class can be passed as an argument to the `.Transport` class.
:param str command_line:
the command that should be executed and used as the proxy.
"""
self.cmd = shlsplit(command_line)
self.process = Popen(self.cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE)
self.timeout = None
self.buffer = []
def send(self, content):
"""
Write the content received from the SSH client to the standard
input of the forked command.
:param str content: string to be sent to the forked command
"""
try:
self.process.stdin.write(content)
except IOError as e:
# There was a problem with the child process. It probably
# died and we can't proceed. The best option here is to
# raise an exception informing the user that the informed
# ProxyCommand is not working.
raise ProxyCommandFailure(' '.join(self.cmd), e.strerror)
return len(content)
def recv(self, size):
"""
Read from the standard output of the forked program.
:param int size: how many chars should be read
:return: the length of the read content, as an `int`
"""
try:
start = datetime.now()
while len(self.buffer) < size:
if self.timeout is not None:
elapsed = (datetime.now() - start).microseconds
timeout = self.timeout * 1000 * 1000 # to microseconds
if elapsed >= timeout:
raise socket.timeout()
r, w, x = select([self.process.stdout], [], [], 0.0)
if r and r[0] == self.process.stdout:
b = os.read(self.process.stdout.fileno(), 1)
# Store in class-level buffer for persistence across
# timeouts; this makes us act more like a real socket
# (where timeouts don't actually drop data.)
self.buffer.append(b)
result = ''.join(self.buffer)
self.buffer = []
return result
except socket.timeout:
raise # socket.timeout is a subclass of IOError
except IOError as e:
raise ProxyCommandFailure(' '.join(self.cmd), e.strerror)
def close(self):
os.kill(self.process.pid, signal.SIGTERM)
def settimeout(self, timeout):
self.timeout = timeout

View File

@ -1,162 +0,0 @@
import sys
import base64
__all__ = ['PY2', 'string_types', 'integer_types', 'text_type', 'bytes_types', 'bytes', 'long', 'input',
'decodebytes', 'encodebytes', 'bytestring', 'byte_ord', 'byte_chr', 'byte_mask',
'b', 'u', 'b2s', 'StringIO', 'BytesIO', 'is_callable', 'MAXSIZE', 'next']
PY2 = sys.version_info[0] < 3
if PY2:
string_types = basestring
text_type = unicode
bytes_types = str
bytes = str
integer_types = (int, long)
long = long
input = raw_input
decodebytes = base64.decodestring
encodebytes = base64.encodestring
def bytestring(s): # NOQA
if isinstance(s, unicode):
return s.encode('utf-8')
return s
byte_ord = ord # NOQA
byte_chr = chr # NOQA
def byte_mask(c, mask):
return chr(ord(c) & mask)
def b(s, encoding='utf8'): # NOQA
"""cast unicode or bytes to bytes"""
if isinstance(s, str):
return s
elif isinstance(s, unicode):
return s.encode(encoding)
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def u(s, encoding='utf8'): # NOQA
"""cast bytes or unicode to unicode"""
if isinstance(s, str):
return s.decode(encoding)
elif isinstance(s, unicode):
return s
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def b2s(s):
return s
try:
import cStringIO
StringIO = cStringIO.StringIO # NOQA
except ImportError:
import StringIO
StringIO = StringIO.StringIO # NOQA
BytesIO = StringIO
def is_callable(c): # NOQA
return callable(c)
def get_next(c): # NOQA
return c.next
def next(c):
return c.next()
# It's possible to have sizeof(long) != sizeof(Py_ssize_t).
class X(object):
def __len__(self):
return 1 << 31
try:
len(X())
except OverflowError:
# 32-bit
MAXSIZE = int((1 << 31) - 1) # NOQA
else:
# 64-bit
MAXSIZE = int((1 << 63) - 1) # NOQA
del X
else:
import collections
import struct
string_types = str
text_type = str
bytes = bytes
bytes_types = bytes
integer_types = int
class long(int):
pass
input = input
decodebytes = base64.decodebytes
encodebytes = base64.encodebytes
def bytestring(s):
return s
def byte_ord(c):
# In case we're handed a string instead of an int.
if not isinstance(c, int):
c = ord(c)
return c
def byte_chr(c):
assert isinstance(c, int)
return struct.pack('B', c)
def byte_mask(c, mask):
assert isinstance(c, int)
return struct.pack('B', c & mask)
def b(s, encoding='utf8'):
"""cast unicode or bytes to bytes"""
if isinstance(s, bytes):
return s
elif isinstance(s, str):
return s.encode(encoding)
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def u(s, encoding='utf8'):
"""cast bytes or unicode to unicode"""
if isinstance(s, bytes):
return s.decode(encoding)
elif isinstance(s, str):
return s
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def b2s(s):
return s.decode() if isinstance(s, bytes) else s
import io
StringIO = io.StringIO # NOQA
BytesIO = io.BytesIO # NOQA
def is_callable(c):
return isinstance(c, collections.Callable)
def get_next(c):
return c.__next__
next = next
MAXSIZE = sys.maxsize # NOQA

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -28,13 +28,13 @@ class ResourceManager (object):
A registry of objects and resources that should be closed when those
objects are deleted.
This is meant to be a safer alternative to Python's ``__del__`` method,
This is meant to be a safer alternative to python's C{__del__} method,
which can cause reference cycles to never be collected. Objects registered
with the ResourceManager can be collected but still free resources when
they die.
Resources are registered using `register`, and when an object is garbage
collected, each registered resource is closed by having its ``close()``
Resources are registered using L{register}, and when an object is garbage
collected, each registered resource is closed by having its C{close()}
method called. Multiple resources may be registered per object, but a
resource will only be closed once, even if multiple objects register it.
(The last object to register it wins.)
@ -47,13 +47,14 @@ class ResourceManager (object):
"""
Register a resource to be closed with an object is collected.
When the given ``obj`` is garbage-collected by the Python interpreter,
the ``resource`` will be closed by having its ``close()`` method called.
When the given C{obj} is garbage-collected by the python interpreter,
the C{resource} will be closed by having its C{close()} method called.
Any exceptions are ignored.
:param object obj: the object to track
:param object resource:
the resource to close when the object is collected
@param obj: the object to track
@type obj: object
@param resource: the resource to close when the object is collected
@type resource: object
"""
def callback(ref):
try:

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,24 +17,20 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
RSA keys.
L{RSAKey}
"""
import os
from hashlib import sha1
from Crypto.PublicKey import RSA
from Crypto.Hash import SHA, MD5
from Crypto.Cipher import DES3
from paramiko.common import *
from paramiko import util
from paramiko.common import max_byte, zero_byte, one_byte
from paramiko.message import Message
from paramiko.ber import BER, BERException
from paramiko.pkey import PKey
from paramiko.py3compat import long
from paramiko.ssh_exception import SSHException
SHA1_DIGESTINFO = b'\x30\x21\x30\x09\x06\x05\x2b\x0e\x03\x02\x1a\x05\x00\x04\x14'
class RSAKey (PKey):
"""
@ -61,21 +57,18 @@ class RSAKey (PKey):
else:
if msg is None:
raise SSHException('Key object may not be empty')
if msg.get_text() != 'ssh-rsa':
if msg.get_string() != 'ssh-rsa':
raise SSHException('Invalid key')
self.e = msg.get_mpint()
self.n = msg.get_mpint()
self.size = util.bit_length(self.n)
def asbytes(self):
def __str__(self):
m = Message()
m.add_string('ssh-rsa')
m.add_mpint(self.e)
m.add_mpint(self.n)
return m.asbytes()
def __str__(self):
return self.asbytes()
return str(m)
def __hash__(self):
h = hash(self.get_name())
@ -92,42 +85,42 @@ class RSAKey (PKey):
def can_sign(self):
return self.d is not None
def sign_ssh_data(self, data):
digest = sha1(data).digest()
def sign_ssh_data(self, rpool, data):
digest = SHA.new(data).digest()
rsa = RSA.construct((long(self.n), long(self.e), long(self.d)))
sig = util.deflate_long(rsa.sign(self._pkcs1imify(digest), bytes())[0], 0)
sig = util.deflate_long(rsa.sign(self._pkcs1imify(digest), '')[0], 0)
m = Message()
m.add_string('ssh-rsa')
m.add_string(sig)
return m
def verify_ssh_sig(self, data, msg):
if msg.get_text() != 'ssh-rsa':
if msg.get_string() != 'ssh-rsa':
return False
sig = util.inflate_long(msg.get_binary(), True)
sig = util.inflate_long(msg.get_string(), True)
# verify the signature by SHA'ing the data and encrypting it using the
# public key. some wackiness ensues where we "pkcs1imify" the 20-byte
# hash into a string as long as the RSA key.
hash_obj = util.inflate_long(self._pkcs1imify(sha1(data).digest()), True)
hash_obj = util.inflate_long(self._pkcs1imify(SHA.new(data).digest()), True)
rsa = RSA.construct((long(self.n), long(self.e)))
return rsa.verify(hash_obj, (sig,))
def _encode_key(self):
if (self.p is None) or (self.q is None):
raise SSHException('Not enough key info to write private key file')
keylist = [0, self.n, self.e, self.d, self.p, self.q,
self.d % (self.p - 1), self.d % (self.q - 1),
util.mod_inverse(self.q, self.p)]
keylist = [ 0, self.n, self.e, self.d, self.p, self.q,
self.d % (self.p - 1), self.d % (self.q - 1),
util.mod_inverse(self.q, self.p) ]
try:
b = BER()
b.encode(keylist)
except BERException:
raise SSHException('Unable to create ber encoding of key')
return b.asbytes()
return str(b)
def write_private_key_file(self, filename, password=None):
self._write_private_key_file('RSA', filename, self._encode_key(), password)
def write_private_key(self, file_obj, password=None):
self._write_private_key('RSA', file_obj, self._encode_key(), password)
@ -136,13 +129,15 @@ class RSAKey (PKey):
Generate a new private RSA key. This factory function can be used to
generate a new host key or authentication key.
:param int bits: number of bits the generated key should be.
:param function progress_func:
an optional function to call at key points in key generation (used
by ``pyCrypto.PublicKey``).
:return: new `.RSAKey` private key
@param bits: number of bits the generated key should be.
@type bits: int
@param progress_func: an optional function to call at key points in
key generation (used by C{pyCrypto.PublicKey}).
@type progress_func: function
@return: new private key
@rtype: L{RSAKey}
"""
rsa = RSA.generate(bits, os.urandom, progress_func)
rsa = RSA.generate(bits, rng.read, progress_func)
key = RSAKey(vals=(rsa.e, rsa.n))
key.d = rsa.d
key.p = rsa.p
@ -150,25 +145,28 @@ class RSAKey (PKey):
return key
generate = staticmethod(generate)
### internals...
def _pkcs1imify(self, data):
"""
turn a 20-byte SHA1 hash into a blob of data as large as the key's N,
using PKCS1's \"emsa-pkcs1-v1_5\" encoding. totally bizarre.
"""
SHA1_DIGESTINFO = '\x30\x21\x30\x09\x06\x05\x2b\x0e\x03\x02\x1a\x05\x00\x04\x14'
size = len(util.deflate_long(self.n, 0))
filler = max_byte * (size - len(SHA1_DIGESTINFO) - len(data) - 3)
return zero_byte + one_byte + filler + zero_byte + SHA1_DIGESTINFO + data
filler = '\xff' * (size - len(SHA1_DIGESTINFO) - len(data) - 3)
return '\x00\x01' + filler + '\x00' + SHA1_DIGESTINFO + data
def _from_private_key_file(self, filename, password):
data = self._read_private_key_file('RSA', filename, password)
self._decode_key(data)
def _from_private_key(self, file_obj, password):
data = self._read_private_key('RSA', file_obj, password)
self._decode_key(data)
def _decode_key(self, data):
# private key file contains:
# RSAPrivateKey = { version = 0, n, e, d, p, q, d mod p-1, d mod q-1, q**-1 mod p }

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,21 +17,62 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
`.ServerInterface` is an interface to override for server support.
L{ServerInterface} is an interface to override for server support.
"""
import threading
from paramiko.common import *
from paramiko import util
from paramiko.common import DEBUG, ERROR, OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED, AUTH_FAILED
from paramiko.py3compat import string_types
class InteractiveQuery (object):
"""
A query (set of prompts) for a user during interactive authentication.
"""
def __init__(self, name='', instructions='', *prompts):
"""
Create a new interactive query to send to the client. The name and
instructions are optional, but are generally displayed to the end
user. A list of prompts may be included, or they may be added via
the L{add_prompt} method.
@param name: name of this query
@type name: str
@param instructions: user instructions (usually short) about this query
@type instructions: str
@param prompts: one or more authentication prompts
@type prompts: str
"""
self.name = name
self.instructions = instructions
self.prompts = []
for x in prompts:
if (type(x) is str) or (type(x) is unicode):
self.add_prompt(x)
else:
self.add_prompt(x[0], x[1])
def add_prompt(self, prompt, echo=True):
"""
Add a prompt to this query. The prompt should be a (reasonably short)
string. Multiple prompts can be added to the same query.
@param prompt: the user prompt
@type prompt: str
@param echo: C{True} (default) if the user's response should be echoed;
C{False} if not (for a password or similar)
@type echo: bool
"""
self.prompts.append((prompt, echo))
class ServerInterface (object):
"""
This class defines an interface for controlling the behavior of Paramiko
This class defines an interface for controlling the behavior of paramiko
in server mode.
Methods on this class are called from Paramiko's primary thread, so you
Methods on this class are called from paramiko's primary thread, so you
shouldn't do too much work in them. (Certainly nothing that blocks or
sleeps.)
"""
@ -39,7 +80,7 @@ class ServerInterface (object):
def check_channel_request(self, kind, chanid):
"""
Determine if a channel request of a given type will be granted, and
return ``OPEN_SUCCEEDED`` or an error code. This method is
return C{OPEN_SUCCEEDED} or an error code. This method is
called in server mode when the client requests a channel, after
authentication is complete.
@ -47,37 +88,37 @@ class ServerInterface (object):
useless), you should also override some of the channel request methods
below, which are used to determine which services will be allowed on
a given channel:
- L{check_channel_pty_request}
- L{check_channel_shell_request}
- L{check_channel_subsystem_request}
- L{check_channel_window_change_request}
- L{check_channel_x11_request}
- L{check_channel_forward_agent_request}
- `check_channel_pty_request`
- `check_channel_shell_request`
- `check_channel_subsystem_request`
- `check_channel_window_change_request`
- `check_channel_x11_request`
- `check_channel_forward_agent_request`
The ``chanid`` parameter is a small number that uniquely identifies the
channel within a `.Transport`. A `.Channel` object is not created
unless this method returns ``OPEN_SUCCEEDED`` -- once a
`.Channel` object is created, you can call `.Channel.get_id` to
The C{chanid} parameter is a small number that uniquely identifies the
channel within a L{Transport}. A L{Channel} object is not created
unless this method returns C{OPEN_SUCCEEDED} -- once a
L{Channel} object is created, you can call L{Channel.get_id} to
retrieve the channel ID.
The return value should either be ``OPEN_SUCCEEDED`` (or
``0``) to allow the channel request, or one of the following error
The return value should either be C{OPEN_SUCCEEDED} (or
C{0}) to allow the channel request, or one of the following error
codes to reject it:
- ``OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED``
- ``OPEN_FAILED_CONNECT_FAILED``
- ``OPEN_FAILED_UNKNOWN_CHANNEL_TYPE``
- ``OPEN_FAILED_RESOURCE_SHORTAGE``
- C{OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED}
- C{OPEN_FAILED_CONNECT_FAILED}
- C{OPEN_FAILED_UNKNOWN_CHANNEL_TYPE}
- C{OPEN_FAILED_RESOURCE_SHORTAGE}
The default implementation always returns
``OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED``.
C{OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED}.
:param str kind:
the kind of channel the client would like to open (usually
``"session"``).
:param int chanid: ID of the channel
:return: an `int` success or failure code (listed above)
@param kind: the kind of channel the client would like to open
(usually C{"session"}).
@type kind: str
@param chanid: ID of the channel
@type chanid: int
@return: a success or failure code (listed above)
@rtype: int
"""
return OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED
@ -88,13 +129,15 @@ class ServerInterface (object):
of authentication methods that might be successful.
The "list" is actually a string of comma-separated names of types of
authentication. Possible values are ``"password"``, ``"publickey"``,
and ``"none"``.
authentication. Possible values are C{"password"}, C{"publickey"},
and C{"none"}.
The default implementation always returns ``"password"``.
The default implementation always returns C{"password"}.
:param str username: the username requesting authentication.
:return: a comma-separated `str` of authentication types
@param username: the username requesting authentication.
@type username: str
@return: a comma-separated list of authentication types
@rtype: str
"""
return 'password'
@ -103,17 +146,17 @@ class ServerInterface (object):
Determine if a client may open channels with no (further)
authentication.
Return `.AUTH_FAILED` if the client must authenticate, or
`.AUTH_SUCCESSFUL` if it's okay for the client to not
Return L{AUTH_FAILED} if the client must authenticate, or
L{AUTH_SUCCESSFUL} if it's okay for the client to not
authenticate.
The default implementation always returns `.AUTH_FAILED`.
The default implementation always returns L{AUTH_FAILED}.
:param str username: the username of the client.
:return:
`.AUTH_FAILED` if the authentication fails; `.AUTH_SUCCESSFUL` if
it succeeds.
:rtype: int
@param username: the username of the client.
@type username: str
@return: L{AUTH_FAILED} if the authentication fails;
L{AUTH_SUCCESSFUL} if it succeeds.
@rtype: int
"""
return AUTH_FAILED
@ -122,23 +165,25 @@ class ServerInterface (object):
Determine if a given username and password supplied by the client is
acceptable for use in authentication.
Return `.AUTH_FAILED` if the password is not accepted,
`.AUTH_SUCCESSFUL` if the password is accepted and completes
the authentication, or `.AUTH_PARTIALLY_SUCCESSFUL` if your
Return L{AUTH_FAILED} if the password is not accepted,
L{AUTH_SUCCESSFUL} if the password is accepted and completes
the authentication, or L{AUTH_PARTIALLY_SUCCESSFUL} if your
authentication is stateful, and this key is accepted for
authentication, but more authentication is required. (In this latter
case, `get_allowed_auths` will be called to report to the client what
case, L{get_allowed_auths} will be called to report to the client what
options it has for continuing the authentication.)
The default implementation always returns `.AUTH_FAILED`.
The default implementation always returns L{AUTH_FAILED}.
:param str username: the username of the authenticating client.
:param str password: the password given by the client.
:return:
`.AUTH_FAILED` if the authentication fails; `.AUTH_SUCCESSFUL` if
it succeeds; `.AUTH_PARTIALLY_SUCCESSFUL` if the password auth is
@param username: the username of the authenticating client.
@type username: str
@param password: the password given by the client.
@type password: str
@return: L{AUTH_FAILED} if the authentication fails;
L{AUTH_SUCCESSFUL} if it succeeds;
L{AUTH_PARTIALLY_SUCCESSFUL} if the password auth is
successful, but authentication must continue.
:rtype: int
@rtype: int
"""
return AUTH_FAILED
@ -149,28 +194,29 @@ class ServerInterface (object):
check the username and key and decide if you would accept a signature
made using this key.
Return `.AUTH_FAILED` if the key is not accepted,
`.AUTH_SUCCESSFUL` if the key is accepted and completes the
authentication, or `.AUTH_PARTIALLY_SUCCESSFUL` if your
Return L{AUTH_FAILED} if the key is not accepted,
L{AUTH_SUCCESSFUL} if the key is accepted and completes the
authentication, or L{AUTH_PARTIALLY_SUCCESSFUL} if your
authentication is stateful, and this password is accepted for
authentication, but more authentication is required. (In this latter
case, `get_allowed_auths` will be called to report to the client what
case, L{get_allowed_auths} will be called to report to the client what
options it has for continuing the authentication.)
Note that you don't have to actually verify any key signtature here.
If you're willing to accept the key, Paramiko will do the work of
If you're willing to accept the key, paramiko will do the work of
verifying the client's signature.
The default implementation always returns `.AUTH_FAILED`.
The default implementation always returns L{AUTH_FAILED}.
:param str username: the username of the authenticating client
:param .PKey key: the key object provided by the client
:return:
`.AUTH_FAILED` if the client can't authenticate with this key;
`.AUTH_SUCCESSFUL` if it can; `.AUTH_PARTIALLY_SUCCESSFUL` if it
can authenticate with this key but must continue with
authentication
:rtype: int
@param username: the username of the authenticating client
@type username: str
@param key: the key object provided by the client
@type key: L{PKey <pkey.PKey>}
@return: L{AUTH_FAILED} if the client can't authenticate
with this key; L{AUTH_SUCCESSFUL} if it can;
L{AUTH_PARTIALLY_SUCCESSFUL} if it can authenticate with
this key but must continue with authentication
@rtype: int
"""
return AUTH_FAILED
@ -178,24 +224,24 @@ class ServerInterface (object):
"""
Begin an interactive authentication challenge, if supported. You
should override this method in server mode if you want to support the
``"keyboard-interactive"`` auth type, which requires you to send a
C{"keyboard-interactive"} auth type, which requires you to send a
series of questions for the client to answer.
Return `.AUTH_FAILED` if this auth method isn't supported. Otherwise,
you should return an `.InteractiveQuery` object containing the prompts
Return L{AUTH_FAILED} if this auth method isn't supported. Otherwise,
you should return an L{InteractiveQuery} object containing the prompts
and instructions for the user. The response will be sent via a call
to `check_auth_interactive_response`.
to L{check_auth_interactive_response}.
The default implementation always returns `.AUTH_FAILED`.
The default implementation always returns L{AUTH_FAILED}.
:param str username: the username of the authenticating client
:param str submethods:
a comma-separated list of methods preferred by the client (usually
empty)
:return:
`.AUTH_FAILED` if this auth method isn't supported; otherwise an
object containing queries for the user
:rtype: int or `.InteractiveQuery`
@param username: the username of the authenticating client
@type username: str
@param submethods: a comma-separated list of methods preferred by the
client (usually empty)
@type submethods: str
@return: L{AUTH_FAILED} if this auth method isn't supported; otherwise
an object containing queries for the user
@rtype: int or L{InteractiveQuery}
"""
return AUTH_FAILED
@ -203,30 +249,31 @@ class ServerInterface (object):
"""
Continue or finish an interactive authentication challenge, if
supported. You should override this method in server mode if you want
to support the ``"keyboard-interactive"`` auth type.
to support the C{"keyboard-interactive"} auth type.
Return `.AUTH_FAILED` if the responses are not accepted,
`.AUTH_SUCCESSFUL` if the responses are accepted and complete
the authentication, or `.AUTH_PARTIALLY_SUCCESSFUL` if your
Return L{AUTH_FAILED} if the responses are not accepted,
L{AUTH_SUCCESSFUL} if the responses are accepted and complete
the authentication, or L{AUTH_PARTIALLY_SUCCESSFUL} if your
authentication is stateful, and this set of responses is accepted for
authentication, but more authentication is required. (In this latter
case, `get_allowed_auths` will be called to report to the client what
case, L{get_allowed_auths} will be called to report to the client what
options it has for continuing the authentication.)
If you wish to continue interactive authentication with more questions,
you may return an `.InteractiveQuery` object, which should cause the
you may return an L{InteractiveQuery} object, which should cause the
client to respond with more answers, calling this method again. This
cycle can continue indefinitely.
The default implementation always returns `.AUTH_FAILED`.
The default implementation always returns L{AUTH_FAILED}.
:param list responses: list of `str` responses from the client
:return:
`.AUTH_FAILED` if the authentication fails; `.AUTH_SUCCESSFUL` if
it succeeds; `.AUTH_PARTIALLY_SUCCESSFUL` if the interactive auth
is successful, but authentication must continue; otherwise an
object containing queries for the user
:rtype: int or `.InteractiveQuery`
@param responses: list of responses from the client
@type responses: list(str)
@return: L{AUTH_FAILED} if the authentication fails;
L{AUTH_SUCCESSFUL} if it succeeds;
L{AUTH_PARTIALLY_SUCCESSFUL} if the interactive auth is
successful, but authentication must continue; otherwise an object
containing queries for the user
@rtype: int or L{InteractiveQuery}
"""
return AUTH_FAILED
@ -234,20 +281,22 @@ class ServerInterface (object):
"""
Handle a request for port forwarding. The client is asking that
connections to the given address and port be forwarded back across
this ssh connection. An address of ``"0.0.0.0"`` indicates a global
address (any address associated with this server) and a port of ``0``
this ssh connection. An address of C{"0.0.0.0"} indicates a global
address (any address associated with this server) and a port of C{0}
indicates that no specific port is requested (usually the OS will pick
a port).
The default implementation always returns ``False``, rejecting the
The default implementation always returns C{False}, rejecting the
port forwarding request. If the request is accepted, you should return
the port opened for listening.
:param str address: the requested address
:param int port: the requested port
:return:
the port number (`int`) that was opened for listening, or ``False``
to reject
@param address: the requested address
@type address: str
@param port: the requested port
@type port: int
@return: the port number that was opened for listening, or C{False} to
reject
@rtype: int
"""
return False
@ -257,17 +306,19 @@ class ServerInterface (object):
If the given address and port is being forwarded across this ssh
connection, the port should be closed.
:param str address: the forwarded address
:param int port: the forwarded port
@param address: the forwarded address
@type address: str
@param port: the forwarded port
@type port: int
"""
pass
def check_global_request(self, kind, msg):
"""
Handle a global request of the given ``kind``. This method is called
Handle a global request of the given C{kind}. This method is called
in server mode and client mode, whenever the remote host makes a global
request. If there are any arguments to the request, they will be in
``msg``.
C{msg}.
There aren't any useful global requests defined, aside from port
forwarding, so usually this type of request is an extension to the
@ -278,100 +329,115 @@ class ServerInterface (object):
sent back with the successful result. (Note that the items in the
tuple can only be strings, ints, longs, or bools.)
The default implementation always returns ``False``, indicating that it
The default implementation always returns C{False}, indicating that it
does not support any global requests.
.. note:: Port forwarding requests are handled separately, in
`check_port_forward_request`.
@note: Port forwarding requests are handled separately, in
L{check_port_forward_request}.
:param str kind: the kind of global request being made.
:param .Message msg: any extra arguments to the request.
:return:
``True`` or a `tuple` of data if the request was granted; ``False``
otherwise.
@param kind: the kind of global request being made.
@type kind: str
@param msg: any extra arguments to the request.
@type msg: L{Message}
@return: C{True} or a tuple of data if the request was granted;
C{False} otherwise.
@rtype: bool
"""
return False
### Channel requests
def check_channel_pty_request(self, channel, term, width, height, pixelwidth, pixelheight,
modes):
"""
Determine if a pseudo-terminal of the given dimensions (usually
requested for shell access) can be provided on the given channel.
The default implementation always returns ``False``.
The default implementation always returns C{False}.
:param .Channel channel: the `.Channel` the pty request arrived on.
:param str term: type of terminal requested (for example, ``"vt100"``).
:param int width: width of screen in characters.
:param int height: height of screen in characters.
:param int pixelwidth:
width of screen in pixels, if known (may be ``0`` if unknown).
:param int pixelheight:
height of screen in pixels, if known (may be ``0`` if unknown).
:return:
``True`` if the psuedo-terminal has been allocated; ``False``
@param channel: the L{Channel} the pty request arrived on.
@type channel: L{Channel}
@param term: type of terminal requested (for example, C{"vt100"}).
@type term: str
@param width: width of screen in characters.
@type width: int
@param height: height of screen in characters.
@type height: int
@param pixelwidth: width of screen in pixels, if known (may be C{0} if
unknown).
@type pixelwidth: int
@param pixelheight: height of screen in pixels, if known (may be C{0}
if unknown).
@type pixelheight: int
@return: C{True} if the psuedo-terminal has been allocated; C{False}
otherwise.
@rtype: bool
"""
return False
def check_channel_shell_request(self, channel):
"""
Determine if a shell will be provided to the client on the given
channel. If this method returns ``True``, the channel should be
channel. If this method returns C{True}, the channel should be
connected to the stdin/stdout of a shell (or something that acts like
a shell).
The default implementation always returns ``False``.
The default implementation always returns C{False}.
:param .Channel channel: the `.Channel` the request arrived on.
:return:
``True`` if this channel is now hooked up to a shell; ``False`` if
a shell can't or won't be provided.
@param channel: the L{Channel} the request arrived on.
@type channel: L{Channel}
@return: C{True} if this channel is now hooked up to a shell; C{False}
if a shell can't or won't be provided.
@rtype: bool
"""
return False
def check_channel_exec_request(self, channel, command):
"""
Determine if a shell command will be executed for the client. If this
method returns ``True``, the channel should be connected to the stdin,
method returns C{True}, the channel should be connected to the stdin,
stdout, and stderr of the shell command.
The default implementation always returns ``False``.
The default implementation always returns C{False}.
:param .Channel channel: the `.Channel` the request arrived on.
:param str command: the command to execute.
:return:
``True`` if this channel is now hooked up to the stdin, stdout, and
stderr of the executing command; ``False`` if the command will not
be executed.
@param channel: the L{Channel} the request arrived on.
@type channel: L{Channel}
@param command: the command to execute.
@type command: str
@return: C{True} if this channel is now hooked up to the stdin,
stdout, and stderr of the executing command; C{False} if the
command will not be executed.
@rtype: bool
.. versionadded:: 1.1
@since: 1.1
"""
return False
def check_channel_subsystem_request(self, channel, name):
"""
Determine if a requested subsystem will be provided to the client on
the given channel. If this method returns ``True``, all future I/O
the given channel. If this method returns C{True}, all future I/O
through this channel will be assumed to be connected to the requested
subsystem. An example of a subsystem is ``sftp``.
subsystem. An example of a subsystem is C{sftp}.
The default implementation checks for a subsystem handler assigned via
`.Transport.set_subsystem_handler`.
L{Transport.set_subsystem_handler}.
If one has been set, the handler is invoked and this method returns
``True``. Otherwise it returns ``False``.
C{True}. Otherwise it returns C{False}.
.. note:: Because the default implementation uses the `.Transport` to
@note: Because the default implementation uses the L{Transport} to
identify valid subsystems, you probably won't need to override this
method.
:param .Channel channel: the `.Channel` the pty request arrived on.
:param str name: name of the requested subsystem.
:return:
``True`` if this channel is now hooked up to the requested
subsystem; ``False`` if that subsystem can't or won't be provided.
@param channel: the L{Channel} the pty request arrived on.
@type channel: L{Channel}
@param name: name of the requested subsystem.
@type name: str
@return: C{True} if this channel is now hooked up to the requested
subsystem; C{False} if that subsystem can't or won't be provided.
@rtype: bool
"""
handler_class, larg, kwarg = channel.get_transport()._get_subsystem_handler(name)
if handler_class is None:
@ -385,178 +451,137 @@ class ServerInterface (object):
Determine if the pseudo-terminal on the given channel can be resized.
This only makes sense if a pty was previously allocated on it.
The default implementation always returns ``False``.
The default implementation always returns C{False}.
:param .Channel channel: the `.Channel` the pty request arrived on.
:param int width: width of screen in characters.
:param int height: height of screen in characters.
:param int pixelwidth:
width of screen in pixels, if known (may be ``0`` if unknown).
:param int pixelheight:
height of screen in pixels, if known (may be ``0`` if unknown).
:return: ``True`` if the terminal was resized; ``False`` if not.
@param channel: the L{Channel} the pty request arrived on.
@type channel: L{Channel}
@param width: width of screen in characters.
@type width: int
@param height: height of screen in characters.
@type height: int
@param pixelwidth: width of screen in pixels, if known (may be C{0} if
unknown).
@type pixelwidth: int
@param pixelheight: height of screen in pixels, if known (may be C{0}
if unknown).
@type pixelheight: int
@return: C{True} if the terminal was resized; C{False} if not.
@rtype: bool
"""
return False
def check_channel_x11_request(self, channel, single_connection, auth_protocol, auth_cookie, screen_number):
"""
Determine if the client will be provided with an X11 session. If this
method returns ``True``, X11 applications should be routed through new
SSH channels, using `.Transport.open_x11_channel`.
method returns C{True}, X11 applications should be routed through new
SSH channels, using L{Transport.open_x11_channel}.
The default implementation always returns ``False``.
The default implementation always returns C{False}.
:param .Channel channel: the `.Channel` the X11 request arrived on
:param bool single_connection:
``True`` if only a single X11 channel should be opened, else
``False``.
:param str auth_protocol: the protocol used for X11 authentication
:param str auth_cookie: the cookie used to authenticate to X11
:param int screen_number: the number of the X11 screen to connect to
:return: ``True`` if the X11 session was opened; ``False`` if not
@param channel: the L{Channel} the X11 request arrived on
@type channel: L{Channel}
@param single_connection: C{True} if only a single X11 channel should
be opened
@type single_connection: bool
@param auth_protocol: the protocol used for X11 authentication
@type auth_protocol: str
@param auth_cookie: the cookie used to authenticate to X11
@type auth_cookie: str
@param screen_number: the number of the X11 screen to connect to
@type screen_number: int
@return: C{True} if the X11 session was opened; C{False} if not
@rtype: bool
"""
return False
def check_channel_forward_agent_request(self, channel):
"""
Determine if the client will be provided with an forward agent session.
If this method returns ``True``, the server will allow SSH Agent
If this method returns C{True}, the server will allow SSH Agent
forwarding.
The default implementation always returns ``False``.
The default implementation always returns C{False}.
:param .Channel channel: the `.Channel` the request arrived on
:return: ``True`` if the AgentForward was loaded; ``False`` if not
@param channel: the L{Channel} the request arrived on
@type channel: L{Channel}
@return: C{True} if the AgentForward was loaded; C{False} if not
@rtype: bool
"""
return False
def check_channel_direct_tcpip_request(self, chanid, origin, destination):
"""
Determine if a local port forwarding channel will be granted, and
return ``OPEN_SUCCEEDED`` or an error code. This method is
return C{OPEN_SUCCEEDED} or an error code. This method is
called in server mode when the client requests a channel, after
authentication is complete.
The ``chanid`` parameter is a small number that uniquely identifies the
channel within a `.Transport`. A `.Channel` object is not created
unless this method returns ``OPEN_SUCCEEDED`` -- once a
`.Channel` object is created, you can call `.Channel.get_id` to
The C{chanid} parameter is a small number that uniquely identifies the
channel within a L{Transport}. A L{Channel} object is not created
unless this method returns C{OPEN_SUCCEEDED} -- once a
L{Channel} object is created, you can call L{Channel.get_id} to
retrieve the channel ID.
The origin and destination parameters are (ip_address, port) tuples
that correspond to both ends of the TCP connection in the forwarding
tunnel.
The return value should either be ``OPEN_SUCCEEDED`` (or
``0``) to allow the channel request, or one of the following error
The return value should either be C{OPEN_SUCCEEDED} (or
C{0}) to allow the channel request, or one of the following error
codes to reject it:
- ``OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED``
- ``OPEN_FAILED_CONNECT_FAILED``
- ``OPEN_FAILED_UNKNOWN_CHANNEL_TYPE``
- ``OPEN_FAILED_RESOURCE_SHORTAGE``
- C{OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED}
- C{OPEN_FAILED_CONNECT_FAILED}
- C{OPEN_FAILED_UNKNOWN_CHANNEL_TYPE}
- C{OPEN_FAILED_RESOURCE_SHORTAGE}
The default implementation always returns
``OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED``.
C{OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED}.
:param int chanid: ID of the channel
:param tuple origin:
2-tuple containing the IP address and port of the originator
(client side)
:param tuple destination:
2-tuple containing the IP address and port of the destination
(server side)
:return: an `int` success or failure code (listed above)
@param chanid: ID of the channel
@type chanid: int
@param origin: 2-tuple containing the IP address and port of the
originator (client side)
@type origin: tuple
@param destination: 2-tuple containing the IP address and port of the
destination (server side)
@type destination: tuple
@return: a success or failure code (listed above)
@rtype: int
"""
return OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED
def check_channel_env_request(self, channel, name, value):
"""
Check whether a given environment variable can be specified for the
given channel. This method should return C{True} if the server
is willing to set the specified environment variable. Note that
some environment variables (e.g., PATH) can be exceedingly
dangerous, so blindly allowing the client to set the environment
is almost certainly not a good idea.
The default implementation always returns C{False}.
@param channel: the L{Channel} the env request arrived on
@type channel: L{Channel}
@param name: foo bar baz
@type name: str
@param value: flklj
@type value: str
@rtype: bool
"""
return False
class InteractiveQuery (object):
"""
A query (set of prompts) for a user during interactive authentication.
"""
def __init__(self, name='', instructions='', *prompts):
"""
Create a new interactive query to send to the client. The name and
instructions are optional, but are generally displayed to the end
user. A list of prompts may be included, or they may be added via
the `add_prompt` method.
:param str name: name of this query
:param str instructions:
user instructions (usually short) about this query
:param str prompts: one or more authentication prompts
"""
self.name = name
self.instructions = instructions
self.prompts = []
for x in prompts:
if isinstance(x, string_types):
self.add_prompt(x)
else:
self.add_prompt(x[0], x[1])
def add_prompt(self, prompt, echo=True):
"""
Add a prompt to this query. The prompt should be a (reasonably short)
string. Multiple prompts can be added to the same query.
:param str prompt: the user prompt
:param bool echo:
``True`` (default) if the user's response should be echoed;
``False`` if not (for a password or similar)
"""
self.prompts.append((prompt, echo))
class SubsystemHandler (threading.Thread):
"""
Handler for a subsytem in server mode. If you create a subclass of this
class and pass it to `.Transport.set_subsystem_handler`, an object of this
class and pass it to
L{Transport.set_subsystem_handler},
an object of this
class will be created for each request for this subsystem. Each new object
will be executed within its own new thread by calling `start_subsystem`.
will be executed within its own new thread by calling L{start_subsystem}.
When that method completes, the channel is closed.
For example, if you made a subclass ``MP3Handler`` and registered it as the
handler for subsystem ``"mp3"``, then whenever a client has successfully
authenticated and requests subsytem ``"mp3"``, an object of class
``MP3Handler`` will be created, and `start_subsystem` will be called on
For example, if you made a subclass C{MP3Handler} and registered it as the
handler for subsystem C{"mp3"}, then whenever a client has successfully
authenticated and requests subsytem C{"mp3"}, an object of class
C{MP3Handler} will be created, and L{start_subsystem} will be called on
it from a new thread.
"""
def __init__(self, channel, name, server):
"""
Create a new handler for a channel. This is used by `.ServerInterface`
Create a new handler for a channel. This is used by L{ServerInterface}
to start up a new handler when a channel requests this subsystem. You
don't need to override this method, but if you do, be sure to pass the
``channel`` and ``name`` parameters through to the original ``__init__``
C{channel} and C{name} parameters through to the original C{__init__}
method here.
:param .Channel channel: the channel associated with this subsystem request.
:param str name: name of the requested subsystem.
:param .ServerInterface server:
the server object for the session that started this subsystem
@param channel: the channel associated with this subsystem request.
@type channel: L{Channel}
@param name: name of the requested subsystem.
@type name: str
@param server: the server object for the session that started this
subsystem
@type server: L{ServerInterface}
"""
threading.Thread.__init__(self, target=self._run)
self.__channel = channel
@ -566,8 +591,10 @@ class SubsystemHandler (threading.Thread):
def get_server(self):
"""
Return the `.ServerInterface` object associated with this channel and
Return the L{ServerInterface} object associated with this channel and
subsystem.
@rtype: L{ServerInterface}
"""
return self.__server
@ -575,7 +602,7 @@ class SubsystemHandler (threading.Thread):
try:
self.__transport._log(DEBUG, 'Starting handler for subsystem %s' % self.__name)
self.start_subsystem(self.__name, self.__transport, self.__channel)
except Exception as e:
except Exception, e:
self.__transport._log(ERROR, 'Exception in subsystem handler for "%s": %s' %
(self.__name, str(e)))
self.__transport._log(ERROR, util.tb_strings())
@ -592,20 +619,22 @@ class SubsystemHandler (threading.Thread):
subsystem is finished, this method will return. After this method
returns, the channel is closed.
The combination of ``transport`` and ``channel`` are unique; this handler
corresponds to exactly one `.Channel` on one `.Transport`.
The combination of C{transport} and C{channel} are unique; this handler
corresponds to exactly one L{Channel} on one L{Transport}.
.. note::
It is the responsibility of this method to exit if the underlying
`.Transport` is closed. This can be done by checking
`.Transport.is_active` or noticing an EOF on the `.Channel`. If
this method loops forever without checking for this case, your
Python interpreter may refuse to exit because this thread will
still be running.
@note: It is the responsibility of this method to exit if the
underlying L{Transport} is closed. This can be done by checking
L{Transport.is_active} or noticing an EOF
on the L{Channel}. If this method loops forever without checking
for this case, your python interpreter may refuse to exit because
this thread will still be running.
:param str name: name of the requested subsystem.
:param .Transport transport: the server-mode `.Transport`.
:param .Channel channel: the channel associated with this subsystem request.
@param name: name of the requested subsystem.
@type name: str
@param transport: the server-mode L{Transport}.
@type transport: L{Transport}
@param channel: the channel associated with this subsystem request.
@type channel: L{Channel}
"""
pass
@ -614,6 +643,6 @@ class SubsystemHandler (threading.Thread):
Perform any cleanup at the end of a subsystem. The default
implementation just closes the channel.
.. versionadded:: 1.1
@since: 1.1
"""
self.__channel.close()

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -20,31 +20,32 @@ import select
import socket
import struct
from paramiko.common import *
from paramiko import util
from paramiko.common import asbytes, DEBUG
from paramiko.channel import Channel
from paramiko.message import Message
from paramiko.py3compat import byte_chr, byte_ord
CMD_INIT, CMD_VERSION, CMD_OPEN, CMD_CLOSE, CMD_READ, CMD_WRITE, CMD_LSTAT, CMD_FSTAT, \
CMD_SETSTAT, CMD_FSETSTAT, CMD_OPENDIR, CMD_READDIR, CMD_REMOVE, CMD_MKDIR, \
CMD_RMDIR, CMD_REALPATH, CMD_STAT, CMD_RENAME, CMD_READLINK, CMD_SYMLINK = range(1, 21)
CMD_SETSTAT, CMD_FSETSTAT, CMD_OPENDIR, CMD_READDIR, CMD_REMOVE, CMD_MKDIR, \
CMD_RMDIR, CMD_REALPATH, CMD_STAT, CMD_RENAME, CMD_READLINK, CMD_SYMLINK \
= range(1, 21)
CMD_STATUS, CMD_HANDLE, CMD_DATA, CMD_NAME, CMD_ATTRS = range(101, 106)
CMD_EXTENDED, CMD_EXTENDED_REPLY = range(200, 202)
SFTP_OK = 0
SFTP_EOF, SFTP_NO_SUCH_FILE, SFTP_PERMISSION_DENIED, SFTP_FAILURE, SFTP_BAD_MESSAGE, \
SFTP_NO_CONNECTION, SFTP_CONNECTION_LOST, SFTP_OP_UNSUPPORTED = range(1, 9)
SFTP_NO_CONNECTION, SFTP_CONNECTION_LOST, SFTP_OP_UNSUPPORTED = range(1, 9)
SFTP_DESC = ['Success',
'End of file',
'No such file',
'Permission denied',
'Failure',
'Bad message',
'No connection',
'Connection lost',
'Operation unsupported']
SFTP_DESC = [ 'Success',
'End of file',
'No such file',
'Permission denied',
'Failure',
'Bad message',
'No connection',
'Connection lost',
'Operation unsupported' ]
SFTP_FLAG_READ = 0x1
SFTP_FLAG_WRITE = 0x2
@ -85,7 +86,7 @@ CMD_NAMES = {
CMD_ATTRS: 'attrs',
CMD_EXTENDED: 'extended',
CMD_EXTENDED_REPLY: 'extended_reply'
}
}
class SFTPError (Exception):
@ -98,8 +99,10 @@ class BaseSFTP (object):
self.sock = None
self.ultra_debug = False
### internals...
def _send_version(self):
self._send_packet(CMD_INIT, struct.pack('>I', _VERSION))
t, data = self._read_packet()
@ -118,11 +121,11 @@ class BaseSFTP (object):
raise SFTPError('Incompatible sftp protocol')
version = struct.unpack('>I', data[:4])[0]
# advertise that we support "check-file"
extension_pairs = ['check-file', 'md5,sha1']
extension_pairs = [ 'check-file', 'md5,sha1' ]
msg = Message()
msg.add_int(_VERSION)
msg.add(*extension_pairs)
self._send_packet(CMD_VERSION, msg)
self._send_packet(CMD_VERSION, str(msg))
return version
def _log(self, level, msg, *args):
@ -139,7 +142,7 @@ class BaseSFTP (object):
return
def _read_all(self, n):
out = bytes()
out = ''
while n > 0:
if isinstance(self.sock, socket.socket):
# sometimes sftp is used directly over a socket instead of
@ -148,7 +151,7 @@ class BaseSFTP (object):
# return or raise an exception, but calling select on a closed
# socket will.)
while True:
read, write, err = select.select([self.sock], [], [], 0.1)
read, write, err = select.select([ self.sock ], [], [], 0.1)
if len(read) > 0:
x = self.sock.recv(n)
break
@ -163,8 +166,7 @@ class BaseSFTP (object):
def _send_packet(self, t, packet):
#self._log(DEBUG2, 'write: %s (len=%d)' % (CMD_NAMES.get(t, '0x%02x' % t), len(packet)))
packet = asbytes(packet)
out = struct.pack('>I', len(packet) + 1) + byte_chr(t) + packet
out = struct.pack('>I', len(packet) + 1) + chr(t) + packet
if self.ultra_debug:
self._log(DEBUG, util.format_binary(out, 'OUT: '))
self._write_all(out)
@ -173,14 +175,14 @@ class BaseSFTP (object):
x = self._read_all(4)
# most sftp servers won't accept packets larger than about 32k, so
# anything with the high byte set (> 16MB) is just garbage.
if byte_ord(x[0]):
if x[0] != '\x00':
raise SFTPError('Garbage packet received')
size = struct.unpack('>I', x)[0]
data = self._read_all(size)
if self.ultra_debug:
self._log(DEBUG, util.format_binary(data, 'IN: '))
self._log(DEBUG, util.format_binary(data, 'IN: '));
if size > 0:
t = byte_ord(data[0])
t = ord(data[0])
#self._log(DEBUG2, 'read: %s (len=%d)' % (CMD_NAMES.get(t), '0x%02x' % t, len(data)-1))
return t, data[1:]
return 0, bytes()
return 0, ''

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -18,34 +18,33 @@
import stat
import time
from paramiko.common import x80000000, o700, o70, xffffffff
from paramiko.py3compat import long, b
from paramiko.common import *
from paramiko.sftp import *
class SFTPAttributes (object):
"""
Representation of the attributes of a file (or proxied file) for SFTP in
client or server mode. It attemps to mirror the object returned by
`os.stat` as closely as possible, so it may have the following fields,
with the same meanings as those returned by an `os.stat` object:
- ``st_size``
- ``st_uid``
- ``st_gid``
- ``st_mode``
- ``st_atime``
- ``st_mtime``
C{os.stat} as closely as possible, so it may have the following fields,
with the same meanings as those returned by an C{os.stat} object:
- st_size
- st_uid
- st_gid
- st_mode
- st_atime
- st_mtime
Because SFTP allows flags to have other arbitrary named attributes, these
are stored in a dict named ``attr``. Occasionally, the filename is also
stored, in ``filename``.
are stored in a dict named C{attr}. Occasionally, the filename is also
stored, in C{filename}.
"""
FLAG_SIZE = 1
FLAG_UIDGID = 2
FLAG_PERMISSIONS = 4
FLAG_AMTIME = 8
FLAG_EXTENDED = x80000000
FLAG_EXTENDED = 0x80000000L
def __init__(self):
"""
@ -62,12 +61,15 @@ class SFTPAttributes (object):
def from_stat(cls, obj, filename=None):
"""
Create an `.SFTPAttributes` object from an existing ``stat`` object (an
object returned by `os.stat`).
Create an SFTPAttributes object from an existing C{stat} object (an
object returned by C{os.stat}).
:param object obj: an object returned by `os.stat` (or equivalent).
:param str filename: the filename associated with this file.
:return: new `.SFTPAttributes` object with the same attribute fields.
@param obj: an object returned by C{os.stat} (or equivalent).
@type obj: object
@param filename: the filename associated with this file.
@type filename: str
@return: new L{SFTPAttributes} object with the same attribute fields.
@rtype: L{SFTPAttributes}
"""
attr = cls()
attr.st_size = obj.st_size
@ -84,8 +86,10 @@ class SFTPAttributes (object):
def __repr__(self):
return '<SFTPAttributes: %s>' % self._debug_str()
### internals...
def _from_msg(cls, msg, filename=None, longname=None):
attr = cls()
attr._unpack(msg)
@ -139,7 +143,7 @@ class SFTPAttributes (object):
msg.add_int(long(self.st_mtime))
if self._flags & self.FLAG_EXTENDED:
msg.add_int(len(self.attr))
for key, val in self.attr.items():
for key, val in self.attr.iteritems():
msg.add_string(key)
msg.add_string(val)
return
@ -154,7 +158,7 @@ class SFTPAttributes (object):
out += 'mode=' + oct(self.st_mode) + ' '
if (self.st_atime is not None) and (self.st_mtime is not None):
out += 'atime=%d mtime=%d ' % (self.st_atime, self.st_mtime)
for k, v in self.attr.items():
for k, v in self.attr.iteritems():
out += '"%s"=%r ' % (str(k), v)
out += ']'
return out
@ -171,7 +175,7 @@ class SFTPAttributes (object):
_rwx = staticmethod(_rwx)
def __str__(self):
"""create a unix-style long description of the file (like ls -l)"""
"create a unix-style long description of the file (like ls -l)"
if self.st_mode is not None:
kind = stat.S_IFMT(self.st_mode)
if kind == stat.S_IFIFO:
@ -190,13 +194,13 @@ class SFTPAttributes (object):
ks = 's'
else:
ks = '?'
ks += self._rwx((self.st_mode & o700) >> 6, self.st_mode & stat.S_ISUID)
ks += self._rwx((self.st_mode & o70) >> 3, self.st_mode & stat.S_ISGID)
ks += self._rwx((self.st_mode & 0700) >> 6, self.st_mode & stat.S_ISUID)
ks += self._rwx((self.st_mode & 070) >> 3, self.st_mode & stat.S_ISGID)
ks += self._rwx(self.st_mode & 7, self.st_mode & stat.S_ISVTX, True)
else:
ks = '?---------'
# compute display date
if (self.st_mtime is None) or (self.st_mtime == xffffffff):
if (self.st_mtime is None) or (self.st_mtime == 0xffffffffL):
# shouldn't really happen
datestr = '(unknown date)'
else:
@ -217,5 +221,3 @@ class SFTPAttributes (object):
return '%s 1 %-8d %-8d %8d %-12s %s' % (ks, uid, gid, self.st_size, datestr, filename)
def asbytes(self):
return b(str(self))

View File

@ -1,13 +1,13 @@
# Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of Paramiko.
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -16,6 +16,9 @@
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Client-mode SFTP support.
"""
from binascii import hexlify
import errno
@ -24,18 +27,8 @@ import stat
import threading
import time
import weakref
from paramiko import util
from paramiko.channel import Channel
from paramiko.message import Message
from paramiko.common import INFO, DEBUG, o777
from paramiko.py3compat import bytestring, b, u, long, string_types, bytes_types
from paramiko.sftp import BaseSFTP, CMD_OPENDIR, CMD_HANDLE, SFTPError, CMD_READDIR, \
CMD_NAME, CMD_CLOSE, SFTP_FLAG_READ, SFTP_FLAG_WRITE, SFTP_FLAG_CREATE, \
SFTP_FLAG_TRUNC, SFTP_FLAG_APPEND, SFTP_FLAG_EXCL, CMD_OPEN, CMD_REMOVE, \
CMD_RENAME, CMD_MKDIR, CMD_RMDIR, CMD_STAT, CMD_ATTRS, CMD_LSTAT, \
CMD_SYMLINK, CMD_SETSTAT, CMD_READLINK, CMD_REALPATH, CMD_STATUS, SFTP_OK, \
SFTP_EOF, SFTP_NO_SUCH_FILE, SFTP_PERMISSION_DENIED
from paramiko.sftp import *
from paramiko.sftp_attr import SFTPAttributes
from paramiko.ssh_exception import SSHException
from paramiko.sftp_file import SFTPFile
@ -49,33 +42,31 @@ def _to_unicode(s):
"""
try:
return s.encode('ascii')
except (UnicodeError, AttributeError):
except UnicodeError:
try:
return s.decode('utf-8')
except UnicodeError:
return s
b_slash = b'/'
class SFTPClient (BaseSFTP):
"""
SFTP client object. C{SFTPClient} is used to open an sftp session across
an open ssh L{Transport} and do remote file operations.
"""
class SFTPClient(BaseSFTP):
"""
SFTP client object.
Used to open an SFTP session across an open SSH `.Transport` and perform
remote file operations.
"""
def __init__(self, sock):
"""
Create an SFTP client from an existing `.Channel`. The channel
should already have requested the ``"sftp"`` subsystem.
Create an SFTP client from an existing L{Channel}. The channel
should already have requested the C{"sftp"} subsystem.
An alternate way to create an SFTP client context is by using
`from_transport`.
L{from_transport}.
:param .Channel sock: an open `.Channel` using the ``"sftp"`` subsystem
@param sock: an open L{Channel} using the C{"sftp"} subsystem
@type sock: L{Channel}
:raises SSHException: if there's an exception while negotiating
@raise SSHException: if there's an exception while negotiating
sftp
"""
BaseSFTP.__init__(self)
@ -94,18 +85,19 @@ class SFTPClient(BaseSFTP):
self.ultra_debug = transport.get_hexdump()
try:
server_version = self._send_version()
except EOFError:
except EOFError, x:
raise SSHException('EOF during negotiation')
self._log(INFO, 'Opened sftp connection (server version %d)' % server_version)
def from_transport(cls, t):
"""
Create an SFTP client channel from an open `.Transport`.
Create an SFTP client channel from an open L{Transport}.
:param .Transport t: an open `.Transport` which is already authenticated
:return:
a new `.SFTPClient` object, referring to an sftp session (channel)
across the transport
@param t: an open L{Transport} which is already authenticated
@type t: L{Transport}
@return: a new L{SFTPClient} object, referring to an sftp session
(channel) across the transport
@rtype: L{SFTPClient}
"""
chan = t.open_session()
if chan is None:
@ -117,79 +109,84 @@ class SFTPClient(BaseSFTP):
def _log(self, level, msg, *args):
if isinstance(msg, list):
for m in msg:
self._log(level, m, *args)
super(SFTPClient, self)._log(level, "[chan %s] " + m, *([ self.sock.get_name() ] + list(args)))
else:
# escape '%' in msg (they could come from file or directory names) before logging
msg = msg.replace('%','%%')
super(SFTPClient, self)._log(level, "[chan %s] " + msg, *([self.sock.get_name()] + list(args)))
super(SFTPClient, self)._log(level, "[chan %s] " + msg, *([ self.sock.get_name() ] + list(args)))
def close(self):
"""
Close the SFTP session and its underlying channel.
.. versionadded:: 1.4
@since: 1.4
"""
self._log(INFO, 'sftp session closed.')
self.sock.close()
def get_channel(self):
"""
Return the underlying `.Channel` object for this SFTP session. This
Return the underlying L{Channel} object for this SFTP session. This
might be useful for doing things like setting a timeout on the channel.
.. versionadded:: 1.7.1
@return: the SSH channel
@rtype: L{Channel}
@since: 1.7.1
"""
return self.sock
def listdir(self, path='.'):
"""
Return a list containing the names of the entries in the given ``path``.
Return a list containing the names of the entries in the given C{path}.
The list is in arbitrary order. It does not include the special
entries ``'.'`` and ``'..'`` even if they are present in the folder.
This method is meant to mirror ``os.listdir`` as closely as possible.
For a list of full `.SFTPAttributes` objects, see `listdir_attr`.
entries C{'.'} and C{'..'} even if they are present in the folder.
This method is meant to mirror C{os.listdir} as closely as possible.
For a list of full L{SFTPAttributes} objects, see L{listdir_attr}.
:param str path: path to list (defaults to ``'.'``)
@param path: path to list (defaults to C{'.'})
@type path: str
@return: list of filenames
@rtype: list of str
"""
return [f.filename for f in self.listdir_attr(path)]
def listdir_attr(self, path='.'):
"""
Return a list containing `.SFTPAttributes` objects corresponding to
files in the given ``path``. The list is in arbitrary order. It does
not include the special entries ``'.'`` and ``'..'`` even if they are
Return a list containing L{SFTPAttributes} objects corresponding to
files in the given C{path}. The list is in arbitrary order. It does
not include the special entries C{'.'} and C{'..'} even if they are
present in the folder.
The returned `.SFTPAttributes` objects will each have an additional
field: ``longname``, which may contain a formatted string of the file's
The returned L{SFTPAttributes} objects will each have an additional
field: C{longname}, which may contain a formatted string of the file's
attributes, in unix format. The content of this string will probably
depend on the SFTP server implementation.
:param str path: path to list (defaults to ``'.'``)
:return: list of `.SFTPAttributes` objects
@param path: path to list (defaults to C{'.'})
@type path: str
@return: list of attributes
@rtype: list of L{SFTPAttributes}
.. versionadded:: 1.2
@since: 1.2
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'listdir(%r)' % path)
t, msg = self._request(CMD_OPENDIR, path)
if t != CMD_HANDLE:
raise SFTPError('Expected handle')
handle = msg.get_binary()
handle = msg.get_string()
filelist = []
while True:
try:
t, msg = self._request(CMD_READDIR, handle)
except EOFError:
except EOFError, e:
# done with handle
break
if t != CMD_NAME:
raise SFTPError('Expected name response')
count = msg.get_int()
for i in range(count):
filename = msg.get_text()
longname = msg.get_text()
filename = _to_unicode(msg.get_string())
longname = _to_unicode(msg.get_string())
attr = SFTPAttributes._from_msg(msg, filename, longname)
if (filename != '.') and (filename != '..'):
filelist.append(attr)
@ -199,34 +196,37 @@ class SFTPClient(BaseSFTP):
def open(self, filename, mode='r', bufsize=-1):
"""
Open a file on the remote server. The arguments are the same as for
Python's built-in `python:file` (aka `python:open`). A file-like
object is returned, which closely mimics the behavior of a normal
Python file object, including the ability to be used as a context
manager.
python's built-in C{file} (aka C{open}). A file-like object is
returned, which closely mimics the behavior of a normal python file
object.
The mode indicates how the file is to be opened: ``'r'`` for reading,
``'w'`` for writing (truncating an existing file), ``'a'`` for
appending, ``'r+'`` for reading/writing, ``'w+'`` for reading/writing
(truncating an existing file), ``'a+'`` for reading/appending. The
Python ``'b'`` flag is ignored, since SSH treats all files as binary.
The ``'U'`` flag is supported in a compatible way.
The mode indicates how the file is to be opened: C{'r'} for reading,
C{'w'} for writing (truncating an existing file), C{'a'} for appending,
C{'r+'} for reading/writing, C{'w+'} for reading/writing (truncating an
existing file), C{'a+'} for reading/appending. The python C{'b'} flag
is ignored, since SSH treats all files as binary. The C{'U'} flag is
supported in a compatible way.
Since 1.5.2, an ``'x'`` flag indicates that the operation should only
Since 1.5.2, an C{'x'} flag indicates that the operation should only
succeed if the file was created and did not previously exist. This has
no direct mapping to Python's file flags, but is commonly known as the
``O_EXCL`` flag in posix.
no direct mapping to python's file flags, but is commonly known as the
C{O_EXCL} flag in posix.
The file will be buffered in standard Python style by default, but
can be altered with the ``bufsize`` parameter. ``0`` turns off
buffering, ``1`` uses line buffering, and any number greater than 1
(``>1``) uses that specific buffer size.
The file will be buffered in standard python style by default, but
can be altered with the C{bufsize} parameter. C{0} turns off
buffering, C{1} uses line buffering, and any number greater than 1
(C{>1}) uses that specific buffer size.
:param str filename: name of the file to open
:param str mode: mode (Python-style) to open in
:param int bufsize: desired buffering (-1 = default buffer size)
:return: an `.SFTPFile` object representing the open file
@param filename: name of the file to open
@type filename: str
@param mode: mode (python-style) to open in
@type mode: str
@param bufsize: desired buffering (-1 = default buffer size)
@type bufsize: int
@return: a file object representing the open file
@rtype: SFTPFile
:raises IOError: if the file could not be opened.
@raise IOError: if the file could not be opened.
"""
filename = self._adjust_cwd(filename)
self._log(DEBUG, 'open(%r, %r)' % (filename, mode))
@ -235,31 +235,32 @@ class SFTPClient(BaseSFTP):
imode |= SFTP_FLAG_READ
if ('w' in mode) or ('+' in mode) or ('a' in mode):
imode |= SFTP_FLAG_WRITE
if 'w' in mode:
if ('w' in mode):
imode |= SFTP_FLAG_CREATE | SFTP_FLAG_TRUNC
if 'a' in mode:
if ('a' in mode):
imode |= SFTP_FLAG_CREATE | SFTP_FLAG_APPEND
if 'x' in mode:
if ('x' in mode):
imode |= SFTP_FLAG_CREATE | SFTP_FLAG_EXCL
attrblock = SFTPAttributes()
t, msg = self._request(CMD_OPEN, filename, imode, attrblock)
if t != CMD_HANDLE:
raise SFTPError('Expected handle')
handle = msg.get_binary()
handle = msg.get_string()
self._log(DEBUG, 'open(%r, %r) -> %s' % (filename, mode, hexlify(handle)))
return SFTPFile(self, handle, mode, bufsize)
# Python continues to vacillate about "open" vs "file"...
# python continues to vacillate about "open" vs "file"...
file = open
def remove(self, path):
"""
Remove the file at the given path. This only works on files; for
removing folders (directories), use `rmdir`.
removing folders (directories), use L{rmdir}.
:param str path: path (absolute or relative) of the file to remove
@param path: path (absolute or relative) of the file to remove
@type path: str
:raises IOError: if the path refers to a folder (directory)
@raise IOError: if the path refers to a folder (directory)
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'remove(%r)' % path)
@ -269,12 +270,14 @@ class SFTPClient(BaseSFTP):
def rename(self, oldpath, newpath):
"""
Rename a file or folder from ``oldpath`` to ``newpath``.
Rename a file or folder from C{oldpath} to C{newpath}.
:param str oldpath: existing name of the file or folder
:param str newpath: new name for the file or folder
@param oldpath: existing name of the file or folder
@type oldpath: str
@param newpath: new name for the file or folder
@type newpath: str
:raises IOError: if ``newpath`` is a folder, or something else goes
@raise IOError: if C{newpath} is a folder, or something else goes
wrong
"""
oldpath = self._adjust_cwd(oldpath)
@ -282,14 +285,16 @@ class SFTPClient(BaseSFTP):
self._log(DEBUG, 'rename(%r, %r)' % (oldpath, newpath))
self._request(CMD_RENAME, oldpath, newpath)
def mkdir(self, path, mode=o777):
def mkdir(self, path, mode=0777):
"""
Create a folder (directory) named ``path`` with numeric mode ``mode``.
Create a folder (directory) named C{path} with numeric mode C{mode}.
The default mode is 0777 (octal). On some systems, mode is ignored.
Where it is used, the current umask value is first masked out.
:param str path: name of the folder to create
:param int mode: permissions (posix-style) for the newly-created folder
@param path: name of the folder to create
@type path: str
@param mode: permissions (posix-style) for the newly-created folder
@type mode: int
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'mkdir(%r, %r)' % (path, mode))
@ -299,9 +304,10 @@ class SFTPClient(BaseSFTP):
def rmdir(self, path):
"""
Remove the folder named ``path``.
Remove the folder named C{path}.
:param str path: name of the folder to remove
@param path: name of the folder to remove
@type path: str
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'rmdir(%r)' % path)
@ -311,20 +317,20 @@ class SFTPClient(BaseSFTP):
"""
Retrieve information about a file on the remote system. The return
value is an object whose attributes correspond to the attributes of
Python's ``stat`` structure as returned by ``os.stat``, except that it
python's C{stat} structure as returned by C{os.stat}, except that it
contains fewer fields. An SFTP server may return as much or as little
info as it wants, so the results may vary from server to server.
Unlike a Python `python:stat` object, the result may not be accessed as
a tuple. This is mostly due to the author's slack factor.
Unlike a python C{stat} object, the result may not be accessed as a
tuple. This is mostly due to the author's slack factor.
The fields supported are: ``st_mode``, ``st_size``, ``st_uid``,
``st_gid``, ``st_atime``, and ``st_mtime``.
The fields supported are: C{st_mode}, C{st_size}, C{st_uid}, C{st_gid},
C{st_atime}, and C{st_mtime}.
:param str path: the filename to stat
:return:
an `.SFTPAttributes` object containing attributes about the given
file
@param path: the filename to stat
@type path: str
@return: an object containing attributes about the given file
@rtype: SFTPAttributes
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'stat(%r)' % path)
@ -337,12 +343,12 @@ class SFTPClient(BaseSFTP):
"""
Retrieve information about a file on the remote system, without
following symbolic links (shortcuts). This otherwise behaves exactly
the same as `stat`.
the same as L{stat}.
:param str path: the filename to stat
:return:
an `.SFTPAttributes` object containing attributes about the given
file
@param path: the filename to stat
@type path: str
@return: an object containing attributes about the given file
@rtype: SFTPAttributes
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'lstat(%r)' % path)
@ -353,25 +359,30 @@ class SFTPClient(BaseSFTP):
def symlink(self, source, dest):
"""
Create a symbolic link (shortcut) of the ``source`` path at
``destination``.
Create a symbolic link (shortcut) of the C{source} path at
C{destination}.
:param str source: path of the original file
:param str dest: path of the newly created symlink
@param source: path of the original file
@type source: str
@param dest: path of the newly created symlink
@type dest: str
"""
dest = self._adjust_cwd(dest)
self._log(DEBUG, 'symlink(%r, %r)' % (source, dest))
source = bytestring(source)
if type(source) is unicode:
source = source.encode('utf-8')
self._request(CMD_SYMLINK, source, dest)
def chmod(self, path, mode):
"""
Change the mode (permissions) of a file. The permissions are
unix-style and identical to those used by Python's `os.chmod`
unix-style and identical to those used by python's C{os.chmod}
function.
:param str path: path of the file to change the permissions of
:param int mode: new permissions
@param path: path of the file to change the permissions of
@type path: str
@param mode: new permissions
@type mode: int
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'chmod(%r, %r)' % (path, mode))
@ -381,14 +392,17 @@ class SFTPClient(BaseSFTP):
def chown(self, path, uid, gid):
"""
Change the owner (``uid``) and group (``gid``) of a file. As with
Python's `os.chown` function, you must pass both arguments, so if you
only want to change one, use `stat` first to retrieve the current
Change the owner (C{uid}) and group (C{gid}) of a file. As with
python's C{os.chown} function, you must pass both arguments, so if you
only want to change one, use L{stat} first to retrieve the current
owner and group.
:param str path: path of the file to change the owner and group of
:param int uid: new owner's uid
:param int gid: new group id
@param path: path of the file to change the owner and group of
@type path: str
@param uid: new owner's uid
@type uid: int
@param gid: new group id
@type gid: int
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'chown(%r, %r, %r)' % (path, uid, gid))
@ -398,17 +412,18 @@ class SFTPClient(BaseSFTP):
def utime(self, path, times):
"""
Set the access and modified times of the file specified by ``path``. If
``times`` is ``None``, then the file's access and modified times are set
to the current time. Otherwise, ``times`` must be a 2-tuple of numbers,
of the form ``(atime, mtime)``, which is used to set the access and
modified times, respectively. This bizarre API is mimicked from Python
Set the access and modified times of the file specified by C{path}. If
C{times} is C{None}, then the file's access and modified times are set
to the current time. Otherwise, C{times} must be a 2-tuple of numbers,
of the form C{(atime, mtime)}, which is used to set the access and
modified times, respectively. This bizarre API is mimicked from python
for the sake of consistency -- I apologize.
:param str path: path of the file to modify
:param tuple times:
``None`` or a tuple of (access time, modified time) in standard
internet epoch time (seconds since 01 January 1970 GMT)
@param path: path of the file to modify
@type path: str
@param times: C{None} or a tuple of (access time, modified time) in
standard internet epoch time (seconds since 01 January 1970 GMT)
@type times: tuple(int)
"""
path = self._adjust_cwd(path)
if times is None:
@ -420,13 +435,14 @@ class SFTPClient(BaseSFTP):
def truncate(self, path, size):
"""
Change the size of the file specified by ``path``. This usually
extends or shrinks the size of the file, just like the `~file.truncate`
method on Python file objects.
Change the size of the file specified by C{path}. This usually extends
or shrinks the size of the file, just like the C{truncate()} method on
python file objects.
:param str path: path of the file to modify
:param size: the new size of the file
:type size: int or long
@param path: path of the file to modify
@type path: str
@param size: the new size of the file
@type size: int or long
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'truncate(%r, %r)' % (path, size))
@ -437,11 +453,13 @@ class SFTPClient(BaseSFTP):
def readlink(self, path):
"""
Return the target of a symbolic link (shortcut). You can use
`symlink` to create these. The result may be either an absolute or
L{symlink} to create these. The result may be either an absolute or
relative pathname.
:param str path: path of the symbolic link file
:return: target path, as a `str`
@param path: path of the symbolic link file
@type path: str
@return: target path
@rtype: str
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'readlink(%r)' % path)
@ -459,13 +477,15 @@ class SFTPClient(BaseSFTP):
"""
Return the normalized path (on the server) of a given path. This
can be used to quickly resolve symbolic links or determine what the
server is considering to be the "current folder" (by passing ``'.'``
as ``path``).
server is considering to be the "current folder" (by passing C{'.'}
as C{path}).
:param str path: path to be normalized
:return: normalized form of the given path (as a `str`)
@param path: path to be normalized
@type path: str
@return: normalized form of the given path
@rtype: str
:raises IOError: if the path can't be resolved on the server
@raise IOError: if the path can't be resolved on the server
"""
path = self._adjust_cwd(path)
self._log(DEBUG, 'normalize(%r)' % path)
@ -475,80 +495,89 @@ class SFTPClient(BaseSFTP):
count = msg.get_int()
if count != 1:
raise SFTPError('Realpath returned %d results' % count)
return msg.get_text()
return _to_unicode(msg.get_string())
def chdir(self, path=None):
def chdir(self, path):
"""
Change the "current directory" of this SFTP session. Since SFTP
doesn't really have the concept of a current working directory, this is
emulated by Paramiko. Once you use this method to set a working
directory, all operations on this `.SFTPClient` object will be relative
to that path. You can pass in ``None`` to stop using a current working
doesn't really have the concept of a current working directory, this
is emulated by paramiko. Once you use this method to set a working
directory, all operations on this SFTPClient object will be relative
to that path. You can pass in C{None} to stop using a current working
directory.
:param str path: new current working directory
@param path: new current working directory
@type path: str
:raises IOError: if the requested path doesn't exist on the server
@raise IOError: if the requested path doesn't exist on the server
.. versionadded:: 1.4
@since: 1.4
"""
if path is None:
self._cwd = None
return
if not stat.S_ISDIR(self.stat(path).st_mode):
raise SFTPError(errno.ENOTDIR, "%s: %s" % (os.strerror(errno.ENOTDIR), path))
self._cwd = b(self.normalize(path))
self._cwd = self.normalize(path).encode('utf-8')
def getcwd(self):
"""
Return the "current working directory" for this SFTP session, as
emulated by Paramiko. If no directory has been set with `chdir`,
this method will return ``None``.
emulated by paramiko. If no directory has been set with L{chdir},
this method will return C{None}.
.. versionadded:: 1.4
"""
return self._cwd and u(self._cwd)
@return: the current working directory on the server, or C{None}
@rtype: str
def putfo(self, fl, remotepath, file_size=0, callback=None, confirm=True):
@since: 1.4
"""
Copy the contents of an open file object (``fl``) to the SFTP server as
``remotepath``. Any exception raised by operations will be passed
through.
return self._cwd
def put(self, localpath, remotepath, callback=None, confirm=True):
"""
Copy a local file (C{localpath}) to the SFTP server as C{remotepath}.
Any exception raised by operations will be passed through. This
method is primarily provided as a convenience.
The SFTP operations use pipelining for speed.
:param file fl: opened file or file-like object to copy
:param str remotepath: the destination path on the SFTP server
:param int file_size:
optional size parameter passed to callback. If none is specified,
size defaults to 0
:param callable callback:
optional callback function (form: ``func(int, int)``) that accepts
the bytes transferred so far and the total bytes to be transferred
@param localpath: the local file to copy
@type localpath: str
@param remotepath: the destination path on the SFTP server
@type remotepath: str
@param callback: optional callback function that accepts the bytes
transferred so far and the total bytes to be transferred
(since 1.7.4)
:param bool confirm:
whether to do a stat() on the file afterwards to confirm the file
size (since 1.7.7)
@type callback: function(int, int)
@param confirm: whether to do a stat() on the file afterwards to
confirm the file size (since 1.7.7)
@type confirm: bool
:return:
an `.SFTPAttributes` object containing attributes about the given
file.
@return: an object containing attributes about the given file
(since 1.7.4)
@rtype: SFTPAttributes
.. versionadded:: 1.4
.. versionchanged:: 1.7.4
Began returning rich attribute objects.
@since: 1.4
"""
with self.file(remotepath, 'wb') as fr:
file_size = os.stat(localpath).st_size
fl = file(localpath, 'rb')
try:
fr = self.file(remotepath, 'wb')
fr.set_pipelined(True)
size = 0
while True:
data = fl.read(32768)
fr.write(data)
size += len(data)
if callback is not None:
callback(size, file_size)
if len(data) == 0:
break
try:
while True:
data = fl.read(32768)
if len(data) == 0:
break
fr.write(data)
size += len(data)
if callback is not None:
callback(size, file_size)
finally:
fr.close()
finally:
fl.close()
if confirm:
s = self.stat(remotepath)
if s.st_size != size:
@ -557,93 +586,50 @@ class SFTPClient(BaseSFTP):
s = SFTPAttributes()
return s
def put(self, localpath, remotepath, callback=None, confirm=True):
"""
Copy a local file (``localpath``) to the SFTP server as ``remotepath``.
Any exception raised by operations will be passed through. This
method is primarily provided as a convenience.
The SFTP operations use pipelining for speed.
:param str localpath: the local file to copy
:param str remotepath: the destination path on the SFTP server
:param callable callback:
optional callback function (form: ``func(int, int)``) that accepts
the bytes transferred so far and the total bytes to be transferred
:param bool confirm:
whether to do a stat() on the file afterwards to confirm the file
size
:return: an `.SFTPAttributes` object containing attributes about the given file
.. versionadded:: 1.4
.. versionchanged:: 1.7.4
``callback`` and rich attribute return value added.
.. versionchanged:: 1.7.7
``confirm`` param added.
"""
file_size = os.stat(localpath).st_size
with open(localpath, 'rb') as fl:
return self.putfo(fl, remotepath, os.stat(localpath).st_size, callback, confirm)
def getfo(self, remotepath, fl, callback=None):
"""
Copy a remote file (``remotepath``) from the SFTP server and write to
an open file or file-like object, ``fl``. Any exception raised by
operations will be passed through. This method is primarily provided
as a convenience.
:param object remotepath: opened file or file-like object to copy to
:param str fl:
the destination path on the local host or open file object
:param callable callback:
optional callback function (form: ``func(int, int)``) that accepts
the bytes transferred so far and the total bytes to be transferred
:return: the `number <int>` of bytes written to the opened file object
.. versionadded:: 1.4
.. versionchanged:: 1.7.4
Added the ``callable`` param.
"""
with self.open(remotepath, 'rb') as fr:
file_size = self.stat(remotepath).st_size
fr.prefetch()
size = 0
while True:
data = fr.read(32768)
fl.write(data)
size += len(data)
if callback is not None:
callback(size, file_size)
if len(data) == 0:
break
return size
def get(self, remotepath, localpath, callback=None):
"""
Copy a remote file (``remotepath``) from the SFTP server to the local
host as ``localpath``. Any exception raised by operations will be
Copy a remote file (C{remotepath}) from the SFTP server to the local
host as C{localpath}. Any exception raised by operations will be
passed through. This method is primarily provided as a convenience.
:param str remotepath: the remote file to copy
:param str localpath: the destination path on the local host
:param callable callback:
optional callback function (form: ``func(int, int)``) that accepts
the bytes transferred so far and the total bytes to be transferred
@param remotepath: the remote file to copy
@type remotepath: str
@param localpath: the destination path on the local host
@type localpath: str
@param callback: optional callback function that accepts the bytes
transferred so far and the total bytes to be transferred
(since 1.7.4)
@type callback: function(int, int)
.. versionadded:: 1.4
.. versionchanged:: 1.7.4
Added the ``callback`` param
@since: 1.4
"""
fr = self.file(remotepath, 'rb')
file_size = self.stat(remotepath).st_size
with open(localpath, 'wb') as fl:
size = self.getfo(remotepath, fl, callback)
fr.prefetch()
try:
fl = file(localpath, 'wb')
try:
size = 0
while True:
data = fr.read(32768)
fl.write(data)
size += len(data)
if callback is not None:
callback(size, file_size)
if len(data) == 0:
break
finally:
fl.close()
finally:
fr.close()
s = os.stat(localpath)
if s.st_size != size:
raise IOError('size mismatch in get! %d != %d' % (s.st_size, size))
### internals...
def _request(self, t, *arg):
num = self._async_request(type(None), t, *arg)
return self._read_response(num)
@ -655,11 +641,11 @@ class SFTPClient(BaseSFTP):
msg = Message()
msg.add_int(self.request_number)
for item in arg:
if isinstance(item, long):
msg.add_int64(item)
elif isinstance(item, int):
if isinstance(item, int):
msg.add_int(item)
elif isinstance(item, (string_types, bytes_types)):
elif isinstance(item, long):
msg.add_int64(item)
elif isinstance(item, str):
msg.add_string(item)
elif isinstance(item, SFTPAttributes):
item._pack(msg)
@ -667,7 +653,7 @@ class SFTPClient(BaseSFTP):
raise Exception('unknown type for %r type %r' % (item, type(item)))
num = self.request_number
self._expecting[num] = fileobj
self._send_packet(t, msg)
self._send_packet(t, str(msg))
self.request_number += 1
finally:
self._lock.release()
@ -677,8 +663,8 @@ class SFTPClient(BaseSFTP):
while True:
try:
t, data = self._read_packet()
except EOFError as e:
raise SSHException('Server connection dropped: %s' % str(e))
except EOFError, e:
raise SSHException('Server connection dropped: %s' % (str(e),))
msg = Message(data)
num = msg.get_int()
if num not in self._expecting:
@ -696,11 +682,11 @@ class SFTPClient(BaseSFTP):
self._convert_status(msg)
return t, msg
if fileobj is not type(None):
fileobj._async_response(t, msg, num)
fileobj._async_response(t, msg)
if waitfor is None:
# just doing a single check
break
return None, None
return (None, None)
def _finish_responses(self, fileobj):
while fileobj in self._expecting.values():
@ -712,7 +698,7 @@ class SFTPClient(BaseSFTP):
Raises EOFError or IOError on error status; otherwise does nothing.
"""
code = msg.get_int()
text = msg.get_text()
text = msg.get_string()
if code == SFTP_OK:
return
elif code == SFTP_EOF:
@ -730,19 +716,18 @@ class SFTPClient(BaseSFTP):
Return an adjusted path if we're emulating a "current working
directory" for the server.
"""
path = b(path)
if type(path) is unicode:
path = path.encode('utf-8')
if self._cwd is None:
return path
if len(path) and path[0:1] == b_slash:
if (len(path) > 0) and (path[0] == '/'):
# absolute path
return path
if self._cwd == b_slash:
if self._cwd == '/':
return self._cwd + path
return self._cwd + b_slash + path
return self._cwd + '/' + path
class SFTP(SFTPClient):
"""
An alias for `.SFTPClient` for backwards compatability.
"""
class SFTP (SFTPClient):
"an alias for L{SFTPClient} for backwards compatability"
pass

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,31 +17,23 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
SFTP file object
L{SFTPFile}
"""
from __future__ import with_statement
from binascii import hexlify
from collections import deque
import socket
import threading
import time
from paramiko.common import DEBUG
from paramiko.common import *
from paramiko.sftp import *
from paramiko.file import BufferedFile
from paramiko.py3compat import long
from paramiko.sftp import CMD_CLOSE, CMD_READ, CMD_DATA, SFTPError, CMD_WRITE, \
CMD_STATUS, CMD_FSTAT, CMD_ATTRS, CMD_FSETSTAT, CMD_EXTENDED
from paramiko.sftp_attr import SFTPAttributes
class SFTPFile (BufferedFile):
"""
Proxy object for a file on the remote server, in client mode SFTP.
Instances of this class may be used as context managers in the same way
that built-in Python file objects are.
"""
# Some sftp servers will choke if you send read/write requests larger than
@ -57,18 +49,13 @@ class SFTPFile (BufferedFile):
self._prefetching = False
self._prefetch_done = False
self._prefetch_data = {}
self._prefetch_extents = {}
self._prefetch_lock = threading.Lock()
self._prefetch_reads = []
self._saved_exception = None
self._reqs = deque()
def __del__(self):
self._close(async=True)
def close(self):
"""
Close the file.
"""
self._close(async=False)
def _close(self, async=False):
@ -99,10 +86,10 @@ class SFTPFile (BufferedFile):
pass
def _data_in_prefetch_requests(self, offset, size):
k = [x for x in list(self._prefetch_extents.values()) if x[0] <= offset]
k = [i for i in self._prefetch_reads if i[0] <= offset]
if len(k) == 0:
return False
k.sort(key=lambda x: x[0])
k.sort(lambda x, y: cmp(x[0], y[0]))
buf_offset, buf_size = k[-1]
if buf_offset + buf_size <= offset:
# prefetch request ends before this one begins
@ -173,47 +160,45 @@ class SFTPFile (BufferedFile):
def _write(self, data):
# may write less than requested if it would exceed max packet size
chunk = min(len(data), self.MAX_REQUEST_SIZE)
self._reqs.append(self.sftp._async_request(type(None), CMD_WRITE, self.handle, long(self._realpos), data[:chunk]))
if not self.pipelined or (len(self._reqs) > 100 and self.sftp.sock.recv_ready()):
while len(self._reqs):
req = self._reqs.popleft()
t, msg = self.sftp._read_response(req)
if t != CMD_STATUS:
raise SFTPError('Expected status')
# convert_status already called
req = self.sftp._async_request(type(None), CMD_WRITE, self.handle, long(self._realpos), str(data[:chunk]))
if not self.pipelined or self.sftp.sock.recv_ready():
t, msg = self.sftp._read_response(req)
if t != CMD_STATUS:
raise SFTPError('Expected status')
# convert_status already called
return chunk
def settimeout(self, timeout):
"""
Set a timeout on read/write operations on the underlying socket or
ssh `.Channel`.
ssh L{Channel}.
:param float timeout:
seconds to wait for a pending read/write operation before raising
``socket.timeout``, or ``None`` for no timeout
.. seealso:: `.Channel.settimeout`
@see: L{Channel.settimeout}
@param timeout: seconds to wait for a pending read/write operation
before raising C{socket.timeout}, or C{None} for no timeout
@type timeout: float
"""
self.sftp.sock.settimeout(timeout)
def gettimeout(self):
"""
Returns the timeout in seconds (as a `float`) associated with the
socket or ssh `.Channel` used for this file.
Returns the timeout in seconds (as a float) associated with the socket
or ssh L{Channel} used for this file.
.. seealso:: `.Channel.gettimeout`
@see: L{Channel.gettimeout}
@rtype: float
"""
return self.sftp.sock.gettimeout()
def setblocking(self, blocking):
"""
Set blocking or non-blocking mode on the underiying socket or ssh
`.Channel`.
L{Channel}.
:param int blocking:
0 to set non-blocking mode; non-0 to set blocking mode.
.. seealso:: `.Channel.setblocking`
@see: L{Channel.setblocking}
@param blocking: 0 to set non-blocking mode; non-0 to set blocking
mode.
@type blocking: int
"""
self.sftp.sock.setblocking(blocking)
@ -226,15 +211,16 @@ class SFTPFile (BufferedFile):
self._realpos = self._pos
else:
self._realpos = self._pos = self._get_size() + offset
self._rbuffer = bytes()
self._rbuffer = ''
def stat(self):
"""
Retrieve information about this file from the remote system. This is
exactly like `.SFTPClient.stat`, except that it operates on an
already-open file.
exactly like L{SFTP.stat}, except that it operates on an already-open
file.
:return: an `.SFTPAttributes` object containing attributes about this file.
@return: an object containing attributes about this file.
@rtype: SFTPAttributes
"""
t, msg = self.sftp._request(CMD_FSTAT, self.handle)
if t != CMD_ATTRS:
@ -244,10 +230,11 @@ class SFTPFile (BufferedFile):
def chmod(self, mode):
"""
Change the mode (permissions) of this file. The permissions are
unix-style and identical to those used by Python's `os.chmod`
unix-style and identical to those used by python's C{os.chmod}
function.
:param int mode: new permissions
@param mode: new permissions
@type mode: int
"""
self.sftp._log(DEBUG, 'chmod(%s, %r)' % (hexlify(self.handle), mode))
attr = SFTPAttributes()
@ -256,13 +243,15 @@ class SFTPFile (BufferedFile):
def chown(self, uid, gid):
"""
Change the owner (``uid``) and group (``gid``) of this file. As with
Python's `os.chown` function, you must pass both arguments, so if you
only want to change one, use `stat` first to retrieve the current
Change the owner (C{uid}) and group (C{gid}) of this file. As with
python's C{os.chown} function, you must pass both arguments, so if you
only want to change one, use L{stat} first to retrieve the current
owner and group.
:param int uid: new owner's uid
:param int gid: new group id
@param uid: new owner's uid
@type uid: int
@param gid: new group id
@type gid: int
"""
self.sftp._log(DEBUG, 'chown(%s, %r, %r)' % (hexlify(self.handle), uid, gid))
attr = SFTPAttributes()
@ -272,15 +261,15 @@ class SFTPFile (BufferedFile):
def utime(self, times):
"""
Set the access and modified times of this file. If
``times`` is ``None``, then the file's access and modified times are set
to the current time. Otherwise, ``times`` must be a 2-tuple of numbers,
of the form ``(atime, mtime)``, which is used to set the access and
modified times, respectively. This bizarre API is mimicked from Python
C{times} is C{None}, then the file's access and modified times are set
to the current time. Otherwise, C{times} must be a 2-tuple of numbers,
of the form C{(atime, mtime)}, which is used to set the access and
modified times, respectively. This bizarre API is mimicked from python
for the sake of consistency -- I apologize.
:param tuple times:
``None`` or a tuple of (access time, modified time) in standard
internet epoch time (seconds since 01 January 1970 GMT)
@param times: C{None} or a tuple of (access time, modified time) in
standard internet epoch time (seconds since 01 January 1970 GMT)
@type times: tuple(int)
"""
if times is None:
times = (time.time(), time.time())
@ -292,11 +281,11 @@ class SFTPFile (BufferedFile):
def truncate(self, size):
"""
Change the size of this file. This usually extends
or shrinks the size of the file, just like the ``truncate()`` method on
Python file objects.
or shrinks the size of the file, just like the C{truncate()} method on
python file objects.
:param size: the new size of the file
:type size: int or long
@param size: the new size of the file
@type size: int or long
"""
self.sftp._log(DEBUG, 'truncate(%s, %r)' % (hexlify(self.handle), size))
attr = SFTPAttributes()
@ -309,53 +298,51 @@ class SFTPFile (BufferedFile):
to verify a successful upload or download, or for various rsync-like
operations.
The file is hashed from ``offset``, for ``length`` bytes. If ``length``
is 0, the remainder of the file is hashed. Thus, if both ``offset``
and ``length`` are zero, the entire file is hashed.
The file is hashed from C{offset}, for C{length} bytes. If C{length}
is 0, the remainder of the file is hashed. Thus, if both C{offset}
and C{length} are zero, the entire file is hashed.
Normally, ``block_size`` will be 0 (the default), and this method will
Normally, C{block_size} will be 0 (the default), and this method will
return a byte string representing the requested hash (for example, a
string of length 16 for MD5, or 20 for SHA-1). If a non-zero
``block_size`` is given, each chunk of the file (from ``offset`` to
``offset + length``) of ``block_size`` bytes is computed as a separate
C{block_size} is given, each chunk of the file (from C{offset} to
C{offset + length}) of C{block_size} bytes is computed as a separate
hash. The hash results are all concatenated and returned as a single
string.
For example, ``check('sha1', 0, 1024, 512)`` will return a string of
For example, C{check('sha1', 0, 1024, 512)} will return a string of
length 40. The first 20 bytes will be the SHA-1 of the first 512 bytes
of the file, and the last 20 bytes will be the SHA-1 of the next 512
bytes.
:param str hash_algorithm:
the name of the hash algorithm to use (normally ``"sha1"`` or
``"md5"``)
:param offset:
offset into the file to begin hashing (0 means to start from the
beginning)
:type offset: int or long
:param length:
number of bytes to hash (0 means continue to the end of the file)
:type length: int or long
:param int block_size:
number of bytes to hash per result (must not be less than 256; 0
means to compute only one hash of the entire segment)
:type block_size: int
:return:
`str` of bytes representing the hash of each block, concatenated
together
@param hash_algorithm: the name of the hash algorithm to use (normally
C{"sha1"} or C{"md5"})
@type hash_algorithm: str
@param offset: offset into the file to begin hashing (0 means to start
from the beginning)
@type offset: int or long
@param length: number of bytes to hash (0 means continue to the end of
the file)
@type length: int or long
@param block_size: number of bytes to hash per result (must not be less
than 256; 0 means to compute only one hash of the entire segment)
@type block_size: int
@return: string of bytes representing the hash of each block,
concatenated together
@rtype: str
:raises IOError: if the server doesn't support the "check-file"
@note: Many (most?) servers don't support this extension yet.
@raise IOError: if the server doesn't support the "check-file"
extension, or possibly doesn't support the hash algorithm
requested
.. note:: Many (most?) servers don't support this extension yet.
.. versionadded:: 1.4
@since: 1.4
"""
t, msg = self.sftp._request(CMD_EXTENDED, 'check-file', self.handle,
hash_algorithm, long(offset), long(length), block_size)
ext = msg.get_text()
alg = msg.get_text()
ext = msg.get_string()
alg = msg.get_string()
data = msg.get_remainder()
return data
@ -363,35 +350,35 @@ class SFTPFile (BufferedFile):
"""
Turn on/off the pipelining of write operations to this file. When
pipelining is on, paramiko won't wait for the server response after
each write operation. Instead, they're collected as they come in. At
the first non-write operation (including `.close`), all remaining
each write operation. Instead, they're collected as they come in.
At the first non-write operation (including L{close}), all remaining
server responses are collected. This means that if there was an error
with one of your later writes, an exception might be thrown from within
`.close` instead of `.write`.
with one of your later writes, an exception might be thrown from
within L{close} instead of L{write}.
By default, files are not pipelined.
By default, files are I{not} pipelined.
:param bool pipelined:
``True`` if pipelining should be turned on for this file; ``False``
otherwise
@param pipelined: C{True} if pipelining should be turned on for this
file; C{False} otherwise
@type pipelined: bool
.. versionadded:: 1.5
@since: 1.5
"""
self.pipelined = pipelined
def prefetch(self):
"""
Pre-fetch the remaining contents of this file in anticipation of future
`.read` calls. If reading the entire file, pre-fetching can
Pre-fetch the remaining contents of this file in anticipation of
future L{read} calls. If reading the entire file, pre-fetching can
dramatically improve the download speed by avoiding roundtrip latency.
The file's contents are incrementally buffered in a background thread.
The prefetched data is stored in a buffer until read via the `.read`
The prefetched data is stored in a buffer until read via the L{read}
method. Once data has been read, it's removed from the buffer. The
data may be read in a random order (using `.seek`); chunks of the
data may be read in a random order (using L{seek}); chunks of the
buffer that haven't been read will continue to be buffered.
.. versionadded:: 1.5.1
@since: 1.5.1
"""
size = self.stat().st_size
# queue up async reads for the rest of the file
@ -407,17 +394,17 @@ class SFTPFile (BufferedFile):
def readv(self, chunks):
"""
Read a set of blocks from the file by (offset, length). This is more
efficient than doing a series of `.seek` and `.read` calls, since the
efficient than doing a series of L{seek} and L{read} calls, since the
prefetch machinery is used to retrieve all the requested blocks at
once.
:param chunks:
a list of (offset, length) tuples indicating which sections of the
file to read
:type chunks: list(tuple(long, int))
:return: a list of blocks read, in the same order as in ``chunks``
@param chunks: a list of (offset, length) tuples indicating which
sections of the file to read
@type chunks: list(tuple(long, int))
@return: a list of blocks read, in the same order as in C{chunks}
@rtype: list(str)
.. versionadded:: 1.5.4
@since: 1.5.4
"""
self.sftp._log(DEBUG, 'readv(%s, %r)' % (hexlify(self.handle), chunks))
@ -439,9 +426,11 @@ class SFTPFile (BufferedFile):
for x in chunks:
self.seek(x[0])
yield self.read(x[1])
### internals...
def _get_size(self):
try:
return self.stat().st_size
@ -451,6 +440,7 @@ class SFTPFile (BufferedFile):
def _start_prefetch(self, chunks):
self._prefetching = True
self._prefetch_done = False
self._prefetch_reads.extend(chunks)
t = threading.Thread(target=self._prefetch_thread, args=(chunks,))
t.setDaemon(True)
@ -460,37 +450,27 @@ class SFTPFile (BufferedFile):
# do these read requests in a temporary thread because there may be
# a lot of them, so it may block.
for offset, length in chunks:
with self._prefetch_lock:
num = self.sftp._async_request(self, CMD_READ, self.handle, long(offset), int(length))
self._prefetch_extents[num] = (offset, length)
self.sftp._async_request(self, CMD_READ, self.handle, long(offset), int(length))
def _async_response(self, t, msg, num):
def _async_response(self, t, msg):
if t == CMD_STATUS:
# save exception and re-raise it on next file operation
try:
self.sftp._convert_status(msg)
except Exception as e:
self._saved_exception = e
except Exception, x:
self._saved_exception = x
return
if t != CMD_DATA:
raise SFTPError('Expected data')
data = msg.get_string()
with self._prefetch_lock:
offset, length = self._prefetch_extents[num]
self._prefetch_data[offset] = data
del self._prefetch_extents[num]
if len(self._prefetch_extents) == 0:
self._prefetch_done = True
offset, length = self._prefetch_reads.pop(0)
self._prefetch_data[offset] = data
if len(self._prefetch_reads) == 0:
self._prefetch_done = True
def _check_exception(self):
"""if there's a saved exception, raise & clear it"""
"if there's a saved exception, raise & clear it"
if self._saved_exception is not None:
x = self._saved_exception
self._saved_exception = None
raise x
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.close()

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,7 +21,9 @@ Abstraction of an SFTP file handle (for server mode).
"""
import os
from paramiko.sftp import SFTP_OP_UNSUPPORTED, SFTP_OK
from paramiko.common import *
from paramiko.sftp import *
class SFTPHandle (object):
@ -31,20 +33,21 @@ class SFTPHandle (object):
by the client to refer to the underlying file.
Server implementations can (and should) subclass SFTPHandle to implement
features of a file handle, like `stat` or `chattr`.
features of a file handle, like L{stat} or L{chattr}.
"""
def __init__(self, flags=0):
"""
Create a new file handle representing a local file being served over
SFTP. If ``flags`` is passed in, it's used to determine if the file
SFTP. If C{flags} is passed in, it's used to determine if the file
is open in append mode.
:param int flags: optional flags as passed to `.SFTPServerInterface.open`
@param flags: optional flags as passed to L{SFTPServerInterface.open}
@type flags: int
"""
self.__flags = flags
self.__name = None
# only for handles to folders:
self.__files = {}
self.__files = { }
self.__tell = None
def close(self):
@ -53,10 +56,10 @@ class SFTPHandle (object):
Normally you would use this method to close the underlying OS level
file object(s).
The default implementation checks for attributes on ``self`` named
``readfile`` and/or ``writefile``, and if either or both are present,
their ``close()`` methods are called. This means that if you are
using the default implementations of `read` and `write`, this
The default implementation checks for attributes on C{self} named
C{readfile} and/or C{writefile}, and if either or both are present,
their C{close()} methods are called. This means that if you are
using the default implementations of L{read} and L{write}, this
method's default implementation should be fine also.
"""
readfile = getattr(self, 'readfile', None)
@ -68,22 +71,24 @@ class SFTPHandle (object):
def read(self, offset, length):
"""
Read up to ``length`` bytes from this file, starting at position
``offset``. The offset may be a Python long, since SFTP allows it
Read up to C{length} bytes from this file, starting at position
C{offset}. The offset may be a python long, since SFTP allows it
to be 64 bits.
If the end of the file has been reached, this method may return an
empty string to signify EOF, or it may also return `.SFTP_EOF`.
empty string to signify EOF, or it may also return L{SFTP_EOF}.
The default implementation checks for an attribute on ``self`` named
``readfile``, and if present, performs the read operation on the Python
The default implementation checks for an attribute on C{self} named
C{readfile}, and if present, performs the read operation on the python
file-like object found there. (This is meant as a time saver for the
common case where you are wrapping a Python file object.)
common case where you are wrapping a python file object.)
:param offset: position in the file to start reading from.
:type offset: int or long
:param int length: number of bytes to attempt to read.
:return: data read from the file, or an SFTP error code, as a `str`.
@param offset: position in the file to start reading from.
@type offset: int or long
@param length: number of bytes to attempt to read.
@type length: int
@return: data read from the file, or an SFTP error code.
@rtype: str
"""
readfile = getattr(self, 'readfile', None)
if readfile is None:
@ -95,7 +100,7 @@ class SFTPHandle (object):
readfile.seek(offset)
self.__tell = offset
data = readfile.read(length)
except IOError as e:
except IOError, e:
self.__tell = None
return SFTPServer.convert_errno(e.errno)
self.__tell += len(data)
@ -103,22 +108,23 @@ class SFTPHandle (object):
def write(self, offset, data):
"""
Write ``data`` into this file at position ``offset``. Extending the
file past its original end is expected. Unlike Python's normal
``write()`` methods, this method cannot do a partial write: it must
write all of ``data`` or else return an error.
Write C{data} into this file at position C{offset}. Extending the
file past its original end is expected. Unlike python's normal
C{write()} methods, this method cannot do a partial write: it must
write all of C{data} or else return an error.
The default implementation checks for an attribute on ``self`` named
``writefile``, and if present, performs the write operation on the
Python file-like object found there. The attribute is named
differently from ``readfile`` to make it easy to implement read-only
The default implementation checks for an attribute on C{self} named
C{writefile}, and if present, performs the write operation on the
python file-like object found there. The attribute is named
differently from C{readfile} to make it easy to implement read-only
(or write-only) files, but if both attributes are present, they should
refer to the same file.
:param offset: position in the file to start reading from.
:type offset: int or long
:param str data: data to write into the file.
:return: an SFTP error code like `.SFTP_OK`.
@param offset: position in the file to start reading from.
@type offset: int or long
@param data: data to write into the file.
@type data: str
@return: an SFTP error code like L{SFTP_OK}.
"""
writefile = getattr(self, 'writefile', None)
if writefile is None:
@ -133,7 +139,7 @@ class SFTPHandle (object):
self.__tell = offset
writefile.write(data)
writefile.flush()
except IOError as e:
except IOError, e:
self.__tell = None
return SFTPServer.convert_errno(e.errno)
if self.__tell is not None:
@ -142,30 +148,33 @@ class SFTPHandle (object):
def stat(self):
"""
Return an `.SFTPAttributes` object referring to this open file, or an
error code. This is equivalent to `.SFTPServerInterface.stat`, except
Return an L{SFTPAttributes} object referring to this open file, or an
error code. This is equivalent to L{SFTPServerInterface.stat}, except
it's called on an open file instead of a path.
:return:
an attributes object for the given file, or an SFTP error code
(like `.SFTP_PERMISSION_DENIED`).
:rtype: `.SFTPAttributes` or error code
@return: an attributes object for the given file, or an SFTP error
code (like L{SFTP_PERMISSION_DENIED}).
@rtype: L{SFTPAttributes} I{or error code}
"""
return SFTP_OP_UNSUPPORTED
def chattr(self, attr):
"""
Change the attributes of this file. The ``attr`` object will contain
Change the attributes of this file. The C{attr} object will contain
only those fields provided by the client in its request, so you should
check for the presence of fields before using them.
:param .SFTPAttributes attr: the attributes to change on this file.
:return: an `int` error code like `.SFTP_OK`.
@param attr: the attributes to change on this file.
@type attr: L{SFTPAttributes}
@return: an error code like L{SFTP_OK}.
@rtype: int
"""
return SFTP_OP_UNSUPPORTED
### internals...
def _set_files(self, files):
"""
Used by the SFTP server code to cache a directory listing. (In

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -22,55 +22,46 @@ Server-mode SFTP support.
import os
import errno
import sys
from hashlib import md5, sha1
from paramiko import util
from paramiko.sftp import BaseSFTP, Message, SFTP_FAILURE, \
SFTP_PERMISSION_DENIED, SFTP_NO_SUCH_FILE
from paramiko.sftp_si import SFTPServerInterface
from paramiko.sftp_attr import SFTPAttributes
from paramiko.common import DEBUG
from paramiko.py3compat import long, string_types, bytes_types, b
from Crypto.Hash import MD5, SHA
from paramiko.common import *
from paramiko.server import SubsystemHandler
from paramiko.sftp import *
from paramiko.sftp_si import *
from paramiko.sftp_attr import *
# known hash algorithms for the "check-file" extension
from paramiko.sftp import CMD_HANDLE, SFTP_DESC, CMD_STATUS, SFTP_EOF, CMD_NAME, \
SFTP_BAD_MESSAGE, CMD_EXTENDED_REPLY, SFTP_FLAG_READ, SFTP_FLAG_WRITE, \
SFTP_FLAG_APPEND, SFTP_FLAG_CREATE, SFTP_FLAG_TRUNC, SFTP_FLAG_EXCL, \
CMD_NAMES, CMD_OPEN, CMD_CLOSE, SFTP_OK, CMD_READ, CMD_DATA, CMD_WRITE, \
CMD_REMOVE, CMD_RENAME, CMD_MKDIR, CMD_RMDIR, CMD_OPENDIR, CMD_READDIR, \
CMD_STAT, CMD_ATTRS, CMD_LSTAT, CMD_FSTAT, CMD_SETSTAT, CMD_FSETSTAT, \
CMD_READLINK, CMD_SYMLINK, CMD_REALPATH, CMD_EXTENDED, SFTP_OP_UNSUPPORTED
_hash_class = {
'sha1': sha1,
'md5': md5,
'sha1': SHA,
'md5': MD5,
}
class SFTPServer (BaseSFTP, SubsystemHandler):
"""
Server-side SFTP subsystem support. Since this is a `.SubsystemHandler`,
it can be (and is meant to be) set as the handler for ``"sftp"`` requests.
Use `.Transport.set_subsystem_handler` to activate this class.
Server-side SFTP subsystem support. Since this is a L{SubsystemHandler},
it can be (and is meant to be) set as the handler for C{"sftp"} requests.
Use L{Transport.set_subsystem_handler} to activate this class.
"""
def __init__(self, channel, name, server, sftp_si=SFTPServerInterface, *largs, **kwargs):
"""
The constructor for SFTPServer is meant to be called from within the
`.Transport` as a subsystem handler. ``server`` and any additional
L{Transport} as a subsystem handler. C{server} and any additional
parameters or keyword parameters are passed from the original call to
`.Transport.set_subsystem_handler`.
L{Transport.set_subsystem_handler}.
:param .Channel channel: channel passed from the `.Transport`.
:param str name: name of the requested subsystem.
:param .ServerInterface server:
the server object associated with this channel and subsystem
:param class sftp_si:
a subclass of `.SFTPServerInterface` to use for handling individual
requests.
@param channel: channel passed from the L{Transport}.
@type channel: L{Channel}
@param name: name of the requested subsystem.
@type name: str
@param server: the server object associated with this channel and
subsystem
@type server: L{ServerInterface}
@param sftp_si: a subclass of L{SFTPServerInterface} to use for handling
individual requests.
@type sftp_si: class
"""
BaseSFTP.__init__(self)
SubsystemHandler.__init__(self, channel, name, server)
@ -79,17 +70,17 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
self.ultra_debug = transport.get_hexdump()
self.next_handle = 1
# map of handle-string to SFTPHandle for files & folders:
self.file_table = {}
self.folder_table = {}
self.file_table = { }
self.folder_table = { }
self.server = sftp_si(server, *largs, **kwargs)
def _log(self, level, msg):
if issubclass(type(msg), list):
for m in msg:
super(SFTPServer, self)._log(level, "[chan " + self.sock.get_name() + "] " + m)
else:
super(SFTPServer, self)._log(level, "[chan " + self.sock.get_name() + "] " + msg)
def start_subsystem(self, name, transport, channel):
self.sock = channel
self._log(DEBUG, 'Started sftp server on channel %s' % repr(channel))
@ -101,7 +92,7 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
except EOFError:
self._log(DEBUG, 'EOF -- end of session')
return
except Exception as e:
except Exception, e:
self._log(DEBUG, 'Exception on channel: ' + str(e))
self._log(DEBUG, util.tb_strings())
return
@ -109,7 +100,7 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
request_number = msg.get_int()
try:
self._process(t, request_number, msg)
except Exception as e:
except Exception, e:
self._log(DEBUG, 'Exception in server processing: ' + str(e))
self._log(DEBUG, util.tb_strings())
# send some kind of failure message, at least
@ -122,21 +113,23 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
self.server.session_ended()
super(SFTPServer, self).finish_subsystem()
# close any file handles that were left open (so we can return them to the OS quickly)
for f in self.file_table.values():
for f in self.file_table.itervalues():
f.close()
for f in self.folder_table.values():
for f in self.folder_table.itervalues():
f.close()
self.file_table = {}
self.folder_table = {}
def convert_errno(e):
"""
Convert an errno value (as from an ``OSError`` or ``IOError``) into a
Convert an errno value (as from an C{OSError} or C{IOError}) into a
standard SFTP result code. This is a convenience function for trapping
exceptions in server code and returning an appropriate result.
:param int e: an errno code, as from ``OSError.errno``.
:return: an `int` SFTP error code like ``SFTP_NO_SUCH_FILE``.
@param e: an errno code, as from C{OSError.errno}.
@type e: int
@return: an SFTP error code like L{SFTP_NO_SUCH_FILE}.
@rtype: int
"""
if e == errno.EACCES:
# permission denied
@ -151,16 +144,18 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
def set_file_attr(filename, attr):
"""
Change a file's attributes on the local filesystem. The contents of
``attr`` are used to change the permissions, owner, group ownership,
C{attr} are used to change the permissions, owner, group ownership,
and/or modification & access time of the file, depending on which
attributes are present in ``attr``.
attributes are present in C{attr}.
This is meant to be a handy helper function for translating SFTP file
requests into local file operations.
:param str filename:
name of the file to alter (should usually be an absolute path).
:param .SFTPAttributes attr: attributes to change.
@param filename: name of the file to alter (should usually be an
absolute path).
@type filename: str
@param attr: attributes to change.
@type attr: L{SFTPAttributes}
"""
if sys.platform != 'win32':
# mode operations are meaningless on win32
@ -171,34 +166,35 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
if attr._flags & attr.FLAG_AMTIME:
os.utime(filename, (attr.st_atime, attr.st_mtime))
if attr._flags & attr.FLAG_SIZE:
with open(filename, 'w+') as f:
f.truncate(attr.st_size)
open(filename, 'w+').truncate(attr.st_size)
set_file_attr = staticmethod(set_file_attr)
### internals...
def _response(self, request_number, t, *arg):
msg = Message()
msg.add_int(request_number)
for item in arg:
if isinstance(item, long):
msg.add_int64(item)
elif isinstance(item, int):
if type(item) is int:
msg.add_int(item)
elif isinstance(item, (string_types, bytes_types)):
elif type(item) is long:
msg.add_int64(item)
elif type(item) is str:
msg.add_string(item)
elif type(item) is SFTPAttributes:
item._pack(msg)
else:
raise Exception('unknown type for ' + repr(item) + ' type ' + repr(type(item)))
self._send_packet(t, msg)
self._send_packet(t, str(msg))
def _send_handle_response(self, request_number, handle, folder=False):
if not issubclass(type(handle), SFTPHandle):
# must be error code
self._send_status(request_number, handle)
return
handle._set_name(b('hx%d' % self.next_handle))
handle._set_name('hx%d' % self.next_handle)
self.next_handle += 1
if folder:
self.folder_table[handle._get_name()] = handle
@ -236,16 +232,16 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
msg.add_int(len(flist))
for attr in flist:
msg.add_string(attr.filename)
msg.add_string(attr)
msg.add_string(str(attr))
attr._pack(msg)
self._send_packet(CMD_NAME, msg)
self._send_packet(CMD_NAME, str(msg))
def _check_file(self, request_number, msg):
# this extension actually comes from v6 protocol, but since it's an
# extension, i feel like we can reasonably support it backported.
# it's very useful for verifying uploaded files or checking for
# rsync-like differences between local and remote files.
handle = msg.get_binary()
handle = msg.get_string()
alg_list = msg.get_list()
start = msg.get_int64()
length = msg.get_int64()
@ -274,17 +270,17 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
self._send_status(request_number, SFTP_FAILURE, 'Block size too small')
return
sum_out = bytes()
sum_out = ''
offset = start
while offset < start + length:
blocklen = min(block_size, start + length - offset)
# don't try to read more than about 64KB at a time
chunklen = min(blocklen, 65536)
count = 0
hash_obj = alg()
hash_obj = alg.new()
while count < blocklen:
data = f.read(offset, chunklen)
if not isinstance(data, bytes_types):
if not type(data) is str:
self._send_status(request_number, data, 'Unable to hash file')
return
hash_obj.update(data)
@ -297,10 +293,10 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
msg.add_string('check-file')
msg.add_string(algname)
msg.add_bytes(sum_out)
self._send_packet(CMD_EXTENDED_REPLY, msg)
self._send_packet(CMD_EXTENDED_REPLY, str(msg))
def _convert_pflags(self, pflags):
"""convert SFTP-style open() flags to Python's os.open() flags"""
"convert SFTP-style open() flags to python's os.open() flags"
if (pflags & SFTP_FLAG_READ) and (pflags & SFTP_FLAG_WRITE):
flags = os.O_RDWR
elif pflags & SFTP_FLAG_WRITE:
@ -320,12 +316,12 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
def _process(self, t, request_number, msg):
self._log(DEBUG, 'Request: %s' % CMD_NAMES[t])
if t == CMD_OPEN:
path = msg.get_text()
path = msg.get_string()
flags = self._convert_pflags(msg.get_int())
attr = SFTPAttributes._from_msg(msg)
self._send_handle_response(request_number, self.server.open(path, flags, attr))
elif t == CMD_CLOSE:
handle = msg.get_binary()
handle = msg.get_string()
if handle in self.folder_table:
del self.folder_table[handle]
self._send_status(request_number, SFTP_OK)
@ -337,14 +333,14 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
return
self._send_status(request_number, SFTP_BAD_MESSAGE, 'Invalid handle')
elif t == CMD_READ:
handle = msg.get_binary()
handle = msg.get_string()
offset = msg.get_int64()
length = msg.get_int()
if handle not in self.file_table:
self._send_status(request_number, SFTP_BAD_MESSAGE, 'Invalid handle')
return
data = self.file_table[handle].read(offset, length)
if isinstance(data, (bytes_types, string_types)):
if type(data) is str:
if len(data) == 0:
self._send_status(request_number, SFTP_EOF)
else:
@ -352,54 +348,54 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
else:
self._send_status(request_number, data)
elif t == CMD_WRITE:
handle = msg.get_binary()
handle = msg.get_string()
offset = msg.get_int64()
data = msg.get_binary()
data = msg.get_string()
if handle not in self.file_table:
self._send_status(request_number, SFTP_BAD_MESSAGE, 'Invalid handle')
return
self._send_status(request_number, self.file_table[handle].write(offset, data))
elif t == CMD_REMOVE:
path = msg.get_text()
path = msg.get_string()
self._send_status(request_number, self.server.remove(path))
elif t == CMD_RENAME:
oldpath = msg.get_text()
newpath = msg.get_text()
oldpath = msg.get_string()
newpath = msg.get_string()
self._send_status(request_number, self.server.rename(oldpath, newpath))
elif t == CMD_MKDIR:
path = msg.get_text()
path = msg.get_string()
attr = SFTPAttributes._from_msg(msg)
self._send_status(request_number, self.server.mkdir(path, attr))
elif t == CMD_RMDIR:
path = msg.get_text()
path = msg.get_string()
self._send_status(request_number, self.server.rmdir(path))
elif t == CMD_OPENDIR:
path = msg.get_text()
path = msg.get_string()
self._open_folder(request_number, path)
return
elif t == CMD_READDIR:
handle = msg.get_binary()
handle = msg.get_string()
if handle not in self.folder_table:
self._send_status(request_number, SFTP_BAD_MESSAGE, 'Invalid handle')
return
folder = self.folder_table[handle]
self._read_folder(request_number, folder)
elif t == CMD_STAT:
path = msg.get_text()
path = msg.get_string()
resp = self.server.stat(path)
if issubclass(type(resp), SFTPAttributes):
self._response(request_number, CMD_ATTRS, resp)
else:
self._send_status(request_number, resp)
elif t == CMD_LSTAT:
path = msg.get_text()
path = msg.get_string()
resp = self.server.lstat(path)
if issubclass(type(resp), SFTPAttributes):
self._response(request_number, CMD_ATTRS, resp)
else:
self._send_status(request_number, resp)
elif t == CMD_FSTAT:
handle = msg.get_binary()
handle = msg.get_string()
if handle not in self.file_table:
self._send_status(request_number, SFTP_BAD_MESSAGE, 'Invalid handle')
return
@ -409,34 +405,34 @@ class SFTPServer (BaseSFTP, SubsystemHandler):
else:
self._send_status(request_number, resp)
elif t == CMD_SETSTAT:
path = msg.get_text()
path = msg.get_string()
attr = SFTPAttributes._from_msg(msg)
self._send_status(request_number, self.server.chattr(path, attr))
elif t == CMD_FSETSTAT:
handle = msg.get_binary()
handle = msg.get_string()
attr = SFTPAttributes._from_msg(msg)
if handle not in self.file_table:
self._response(request_number, SFTP_BAD_MESSAGE, 'Invalid handle')
return
self._send_status(request_number, self.file_table[handle].chattr(attr))
elif t == CMD_READLINK:
path = msg.get_text()
path = msg.get_string()
resp = self.server.readlink(path)
if isinstance(resp, (bytes_types, string_types)):
if type(resp) is str:
self._response(request_number, CMD_NAME, 1, resp, '', SFTPAttributes())
else:
self._send_status(request_number, resp)
elif t == CMD_SYMLINK:
# the sftp 2 draft is incorrect here! path always follows target_path
target_path = msg.get_text()
path = msg.get_text()
target_path = msg.get_string()
path = msg.get_string()
self._send_status(request_number, self.server.symlink(target_path, path))
elif t == CMD_REALPATH:
path = msg.get_text()
path = msg.get_string()
rpath = self.server.canonicalize(path)
self._response(request_number, CMD_NAME, 1, rpath, '', SFTPAttributes())
elif t == CMD_EXTENDED:
tag = msg.get_text()
tag = msg.get_string()
if tag == 'check-file':
self._check_file(request_number, msg)
else:

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -17,18 +17,19 @@
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
An interface to override for SFTP server support.
L{SFTPServerInterface} is an interface to override for SFTP server support.
"""
import os
import sys
from paramiko.sftp import SFTP_OP_UNSUPPORTED
from paramiko.common import *
from paramiko.sftp import *
class SFTPServerInterface (object):
"""
This class defines an interface for controlling the behavior of paramiko
when using the `.SFTPServer` subsystem to provide an SFTP server.
when using the L{SFTPServer} subsystem to provide an SFTP server.
Methods on this class are called from the SFTP session's thread, so you can
block as long as necessary without affecting other sessions (even other
@ -40,13 +41,14 @@ class SFTPServerInterface (object):
clients & servers obey the requirement that paths be encoded in UTF-8.
"""
def __init__(self, server, *largs, **kwargs):
def __init__ (self, server, *largs, **kwargs):
"""
Create a new SFTPServerInterface object. This method does nothing by
default and is meant to be overridden by subclasses.
:param .ServerInterface server:
the server object associated with this channel and SFTP subsystem
@param server: the server object associated with this channel and
SFTP subsystem
@type server: L{ServerInterface}
"""
super(SFTPServerInterface, self).__init__(*largs, **kwargs)
@ -62,7 +64,7 @@ class SFTPServerInterface (object):
"""
The SFTP server session has just ended, either cleanly or via an
exception. This method is meant to be overridden to perform any
necessary cleanup before this `.SFTPServerInterface` object is
necessary cleanup before this C{SFTPServerInterface} object is
destroyed.
"""
pass
@ -70,105 +72,103 @@ class SFTPServerInterface (object):
def open(self, path, flags, attr):
"""
Open a file on the server and create a handle for future operations
on that file. On success, a new object subclassed from `.SFTPHandle`
on that file. On success, a new object subclassed from L{SFTPHandle}
should be returned. This handle will be used for future operations
on the file (read, write, etc). On failure, an error code such as
`.SFTP_PERMISSION_DENIED` should be returned.
L{SFTP_PERMISSION_DENIED} should be returned.
``flags`` contains the requested mode for opening (read-only,
write-append, etc) as a bitset of flags from the ``os`` module:
- ``os.O_RDONLY``
- ``os.O_WRONLY``
- ``os.O_RDWR``
- ``os.O_APPEND``
- ``os.O_CREAT``
- ``os.O_TRUNC``
- ``os.O_EXCL``
(One of ``os.O_RDONLY``, ``os.O_WRONLY``, or ``os.O_RDWR`` will always
C{flags} contains the requested mode for opening (read-only,
write-append, etc) as a bitset of flags from the C{os} module:
- C{os.O_RDONLY}
- C{os.O_WRONLY}
- C{os.O_RDWR}
- C{os.O_APPEND}
- C{os.O_CREAT}
- C{os.O_TRUNC}
- C{os.O_EXCL}
(One of C{os.O_RDONLY}, C{os.O_WRONLY}, or C{os.O_RDWR} will always
be set.)
The ``attr`` object contains requested attributes of the file if it
The C{attr} object contains requested attributes of the file if it
has to be created. Some or all attribute fields may be missing if
the client didn't specify them.
.. note:: The SFTP protocol defines all files to be in "binary" mode.
There is no equivalent to Python's "text" mode.
@note: The SFTP protocol defines all files to be in "binary" mode.
There is no equivalent to python's "text" mode.
:param str path:
the requested path (relative or absolute) of the file to be opened.
:param int flags:
flags or'd together from the ``os`` module indicating the requested
mode for opening the file.
:param .SFTPAttributes attr:
requested attributes of the file if it is newly created.
:return: a new `.SFTPHandle` or error code.
@param path: the requested path (relative or absolute) of the file
to be opened.
@type path: str
@param flags: flags or'd together from the C{os} module indicating the
requested mode for opening the file.
@type flags: int
@param attr: requested attributes of the file if it is newly created.
@type attr: L{SFTPAttributes}
@return: a new L{SFTPHandle} I{or error code}.
@rtype L{SFTPHandle}
"""
return SFTP_OP_UNSUPPORTED
def list_folder(self, path):
"""
Return a list of files within a given folder. The ``path`` will use
posix notation (``"/"`` separates folder names) and may be an absolute
Return a list of files within a given folder. The C{path} will use
posix notation (C{"/"} separates folder names) and may be an absolute
or relative path.
The list of files is expected to be a list of `.SFTPAttributes`
The list of files is expected to be a list of L{SFTPAttributes}
objects, which are similar in structure to the objects returned by
``os.stat``. In addition, each object should have its ``filename``
C{os.stat}. In addition, each object should have its C{filename}
field filled in, since this is important to a directory listing and
not normally present in ``os.stat`` results. The method
`.SFTPAttributes.from_stat` will usually do what you want.
not normally present in C{os.stat} results. The method
L{SFTPAttributes.from_stat} will usually do what you want.
In case of an error, you should return one of the ``SFTP_*`` error
codes, such as `.SFTP_PERMISSION_DENIED`.
In case of an error, you should return one of the C{SFTP_*} error
codes, such as L{SFTP_PERMISSION_DENIED}.
:param str path: the requested path (relative or absolute) to be listed.
:return:
a list of the files in the given folder, using `.SFTPAttributes`
objects.
@param path: the requested path (relative or absolute) to be listed.
@type path: str
@return: a list of the files in the given folder, using
L{SFTPAttributes} objects.
@rtype: list of L{SFTPAttributes} I{or error code}
.. note::
You should normalize the given ``path`` first (see the `os.path`
module) and check appropriate permissions before returning the list
of files. Be careful of malicious clients attempting to use
relative paths to escape restricted folders, if you're doing a
direct translation from the SFTP server path to your local
filesystem.
@note: You should normalize the given C{path} first (see the
C{os.path} module) and check appropriate permissions before returning
the list of files. Be careful of malicious clients attempting to use
relative paths to escape restricted folders, if you're doing a direct
translation from the SFTP server path to your local filesystem.
"""
return SFTP_OP_UNSUPPORTED
def stat(self, path):
"""
Return an `.SFTPAttributes` object for a path on the server, or an
Return an L{SFTPAttributes} object for a path on the server, or an
error code. If your server supports symbolic links (also known as
"aliases"), you should follow them. (`lstat` is the corresponding
"aliases"), you should follow them. (L{lstat} is the corresponding
call that doesn't follow symlinks/aliases.)
:param str path:
the requested path (relative or absolute) to fetch file statistics
for.
:return:
an `.SFTPAttributes` object for the given file, or an SFTP error
code (like `.SFTP_PERMISSION_DENIED`).
@param path: the requested path (relative or absolute) to fetch
file statistics for.
@type path: str
@return: an attributes object for the given file, or an SFTP error
code (like L{SFTP_PERMISSION_DENIED}).
@rtype: L{SFTPAttributes} I{or error code}
"""
return SFTP_OP_UNSUPPORTED
def lstat(self, path):
"""
Return an `.SFTPAttributes` object for a path on the server, or an
Return an L{SFTPAttributes} object for a path on the server, or an
error code. If your server supports symbolic links (also known as
"aliases"), you should not follow them -- instead, you should
return data on the symlink or alias itself. (`stat` is the
"aliases"), you should I{not} follow them -- instead, you should
return data on the symlink or alias itself. (L{stat} is the
corresponding call that follows symlinks/aliases.)
:param str path:
the requested path (relative or absolute) to fetch file statistics
for.
:type path: str
:return:
an `.SFTPAttributes` object for the given file, or an SFTP error
code (like `.SFTP_PERMISSION_DENIED`).
@param path: the requested path (relative or absolute) to fetch
file statistics for.
@type path: str
@return: an attributes object for the given file, or an SFTP error
code (like L{SFTP_PERMISSION_DENIED}).
@rtype: L{SFTPAttributes} I{or error code}
"""
return SFTP_OP_UNSUPPORTED
@ -176,9 +176,11 @@ class SFTPServerInterface (object):
"""
Delete a file, if possible.
:param str path:
the requested path (relative or absolute) of the file to delete.
:return: an SFTP error code `int` like `.SFTP_OK`.
@param path: the requested path (relative or absolute) of the file
to delete.
@type path: str
@return: an SFTP error code like L{SFTP_OK}.
@rtype: int
"""
return SFTP_OP_UNSUPPORTED
@ -190,74 +192,83 @@ class SFTPServerInterface (object):
probably a good idea to implement "move" in this method too, even for
files that cross disk partition boundaries, if at all possible.
.. note:: You should return an error if a file with the same name as
``newpath`` already exists. (The rename operation should be
@note: You should return an error if a file with the same name as
C{newpath} already exists. (The rename operation should be
non-desctructive.)
:param str oldpath:
the requested path (relative or absolute) of the existing file.
:param str newpath: the requested new path of the file.
:return: an SFTP error code `int` like `.SFTP_OK`.
@param oldpath: the requested path (relative or absolute) of the
existing file.
@type oldpath: str
@param newpath: the requested new path of the file.
@type newpath: str
@return: an SFTP error code like L{SFTP_OK}.
@rtype: int
"""
return SFTP_OP_UNSUPPORTED
def mkdir(self, path, attr):
"""
Create a new directory with the given attributes. The ``attr``
Create a new directory with the given attributes. The C{attr}
object may be considered a "hint" and ignored.
The ``attr`` object will contain only those fields provided by the
client in its request, so you should use ``hasattr`` to check for
the presense of fields before using them. In some cases, the ``attr``
The C{attr} object will contain only those fields provided by the
client in its request, so you should use C{hasattr} to check for
the presense of fields before using them. In some cases, the C{attr}
object may be completely empty.
:param str path:
requested path (relative or absolute) of the new folder.
:param .SFTPAttributes attr: requested attributes of the new folder.
:return: an SFTP error code `int` like `.SFTP_OK`.
@param path: requested path (relative or absolute) of the new
folder.
@type path: str
@param attr: requested attributes of the new folder.
@type attr: L{SFTPAttributes}
@return: an SFTP error code like L{SFTP_OK}.
@rtype: int
"""
return SFTP_OP_UNSUPPORTED
def rmdir(self, path):
"""
Remove a directory if it exists. The ``path`` should refer to an
Remove a directory if it exists. The C{path} should refer to an
existing, empty folder -- otherwise this method should return an
error.
:param str path:
requested path (relative or absolute) of the folder to remove.
:return: an SFTP error code `int` like `.SFTP_OK`.
@param path: requested path (relative or absolute) of the folder
to remove.
@type path: str
@return: an SFTP error code like L{SFTP_OK}.
@rtype: int
"""
return SFTP_OP_UNSUPPORTED
def chattr(self, path, attr):
"""
Change the attributes of a file. The ``attr`` object will contain
Change the attributes of a file. The C{attr} object will contain
only those fields provided by the client in its request, so you
should check for the presence of fields before using them.
:param str path:
requested path (relative or absolute) of the file to change.
:param attr:
requested attributes to change on the file (an `.SFTPAttributes`
object)
:return: an error code `int` like `.SFTP_OK`.
@param path: requested path (relative or absolute) of the file to
change.
@type path: str
@param attr: requested attributes to change on the file.
@type attr: L{SFTPAttributes}
@return: an error code like L{SFTP_OK}.
@rtype: int
"""
return SFTP_OP_UNSUPPORTED
def canonicalize(self, path):
"""
Return the canonical form of a path on the server. For example,
if the server's home folder is ``/home/foo``, the path
``"../betty"`` would be canonicalized to ``"/home/betty"``. Note
if the server's home folder is C{/home/foo}, the path
C{"../betty"} would be canonicalized to C{"/home/betty"}. Note
the obvious security issues: if you're serving files only from a
specific folder, you probably don't want this method to reveal path
names outside that folder.
You may find the Python methods in ``os.path`` useful, especially
``os.path.normpath`` and ``os.path.realpath``.
You may find the python methods in C{os.path} useful, especially
C{os.path.normpath} and C{os.path.realpath}.
The default implementation returns ``os.path.normpath('/' + path)``.
The default implementation returns C{os.path.normpath('/' + path)}.
"""
if os.path.isabs(path):
out = os.path.normpath(path)
@ -274,23 +285,26 @@ class SFTPServerInterface (object):
If the specified path doesn't refer to a symbolic link, an error
should be returned.
:param str path: path (relative or absolute) of the symbolic link.
:return:
the target `str` path of the symbolic link, or an error code like
`.SFTP_NO_SUCH_FILE`.
@param path: path (relative or absolute) of the symbolic link.
@type path: str
@return: the target path of the symbolic link, or an error code like
L{SFTP_NO_SUCH_FILE}.
@rtype: str I{or error code}
"""
return SFTP_OP_UNSUPPORTED
def symlink(self, target_path, path):
"""
Create a symbolic link on the server, as new pathname ``path``,
with ``target_path`` as the target of the link.
Create a symbolic link on the server, as new pathname C{path},
with C{target_path} as the target of the link.
:param str target_path:
path (relative or absolute) of the target for this new symbolic
link.
:param str path:
path (relative or absolute) of the symbolic link to create.
:return: an error code `int` like ``SFTP_OK``.
@param target_path: path (relative or absolute) of the target for
this new symbolic link.
@type target_path: str
@param path: path (relative or absolute) of the symbolic link to
create.
@type path: str
@return: an error code like C{SFTP_OK}.
@rtype: int
"""
return SFTP_OP_UNSUPPORTED

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -16,6 +16,10 @@
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Exceptions defined by paramiko.
"""
class SSHException (Exception):
"""
@ -30,7 +34,7 @@ class AuthenticationException (SSHException):
possible to retry with different credentials. (Other classes specify more
specific reasons.)
.. versionadded:: 1.6
@since: 1.6
"""
pass
@ -48,20 +52,19 @@ class BadAuthenticationType (AuthenticationException):
the server isn't allowing that type. (It may only allow public-key, for
example.)
:ivar list allowed_types:
list of allowed authentication types provided by the server (possible
values are: ``"none"``, ``"password"``, and ``"publickey"``).
@ivar allowed_types: list of allowed authentication types provided by the
server (possible values are: C{"none"}, C{"password"}, and
C{"publickey"}).
@type allowed_types: list
.. versionadded:: 1.1
@since: 1.1
"""
allowed_types = []
def __init__(self, explanation, types):
AuthenticationException.__init__(self, explanation)
self.allowed_types = types
# for unpickling
self.args = (explanation, types, )
def __str__(self):
return SSHException.__str__(self) + ' (allowed_types=%r)' % self.allowed_types
@ -75,57 +78,38 @@ class PartialAuthentication (AuthenticationException):
def __init__(self, types):
AuthenticationException.__init__(self, 'partial authentication')
self.allowed_types = types
# for unpickling
self.args = (types, )
class ChannelException (SSHException):
"""
Exception raised when an attempt to open a new `.Channel` fails.
Exception raised when an attempt to open a new L{Channel} fails.
:ivar int code: the error code returned by the server
@ivar code: the error code returned by the server
@type code: int
.. versionadded:: 1.6
@since: 1.6
"""
def __init__(self, code, text):
SSHException.__init__(self, text)
self.code = code
# for unpickling
self.args = (code, text, )
class BadHostKeyException (SSHException):
"""
The host key given by the SSH server did not match what we were expecting.
:ivar str hostname: the hostname of the SSH server
:ivar PKey got_key: the host key presented by the server
:ivar PKey expected_key: the host key expected
@ivar hostname: the hostname of the SSH server
@type hostname: str
@ivar key: the host key presented by the server
@type key: L{PKey}
@ivar expected_key: the host key expected
@type expected_key: L{PKey}
.. versionadded:: 1.6
@since: 1.6
"""
def __init__(self, hostname, got_key, expected_key):
SSHException.__init__(self, 'Host key for server %s does not match!' % hostname)
self.hostname = hostname
self.key = got_key
self.expected_key = expected_key
# for unpickling
self.args = (hostname, got_key, expected_key, )
class ProxyCommandFailure (SSHException):
"""
The "ProxyCommand" found in the .ssh/config file returned an error.
:ivar str command: The command line that is generating this exception.
:ivar str error: The error captured from the proxy command output.
"""
def __init__(self, command, error):
SSHException.__init__(self,
'"ProxyCommand (%s)" returned non-zero exit status: %s' % (
command, error
)
)
self.error = error
# for unpickling
self.args = (command, error, )

File diff suppressed because it is too large Load Diff

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -29,65 +29,78 @@ import sys
import struct
import traceback
import threading
import logging
from paramiko.common import DEBUG, zero_byte, xffffffff, max_byte
from paramiko.py3compat import PY2, long, byte_ord, b, byte_chr
from paramiko.common import *
from paramiko.config import SSHConfig
# Change by RogerB - python < 2.3 doesn't have enumerate so we implement it
if sys.version_info < (2,3):
class enumerate:
def __init__ (self, sequence):
self.sequence = sequence
def __iter__ (self):
count = 0
for item in self.sequence:
yield (count, item)
count += 1
def inflate_long(s, always_positive=False):
"""turns a normalized byte string into a long-int (adapted from Crypto.Util.number)"""
out = long(0)
"turns a normalized byte string into a long-int (adapted from Crypto.Util.number)"
out = 0L
negative = 0
if not always_positive and (len(s) > 0) and (byte_ord(s[0]) >= 0x80):
if not always_positive and (len(s) > 0) and (ord(s[0]) >= 0x80):
negative = 1
if len(s) % 4:
filler = zero_byte
filler = '\x00'
if negative:
filler = max_byte
# never convert this to ``s +=`` because this is a string, not a number
# noinspection PyAugmentAssignment
filler = '\xff'
s = filler * (4 - len(s) % 4) + s
for i in range(0, len(s), 4):
out = (out << 32) + struct.unpack('>I', s[i:i+4])[0]
if negative:
out -= (long(1) << (8 * len(s)))
out -= (1L << (8 * len(s)))
return out
deflate_zero = zero_byte if PY2 else 0
deflate_ff = max_byte if PY2 else 0xff
def deflate_long(n, add_sign_padding=True):
"""turns a long-int into a normalized byte string (adapted from Crypto.Util.number)"""
"turns a long-int into a normalized byte string (adapted from Crypto.Util.number)"
# after much testing, this algorithm was deemed to be the fastest
s = bytes()
s = ''
n = long(n)
while (n != 0) and (n != -1):
s = struct.pack('>I', n & xffffffff) + s
n >>= 32
s = struct.pack('>I', n & 0xffffffffL) + s
n = n >> 32
# strip off leading zeros, FFs
for i in enumerate(s):
if (n == 0) and (i[1] != deflate_zero):
if (n == 0) and (i[1] != '\000'):
break
if (n == -1) and (i[1] != deflate_ff):
if (n == -1) and (i[1] != '\xff'):
break
else:
# degenerate case, n was either 0 or -1
i = (0,)
if n == 0:
s = zero_byte
s = '\000'
else:
s = max_byte
s = '\xff'
s = s[i[0]:]
if add_sign_padding:
if (n == 0) and (byte_ord(s[0]) >= 0x80):
s = zero_byte + s
if (n == -1) and (byte_ord(s[0]) < 0x80):
s = max_byte + s
if (n == 0) and (ord(s[0]) >= 0x80):
s = '\x00' + s
if (n == -1) and (ord(s[0]) < 0x80):
s = '\xff' + s
return s
def format_binary_weird(data):
out = ''
for i in enumerate(data):
out += '%02X' % ord(i[1])
if i[0] % 2:
out += ' '
if i[0] % 16 == 15:
out += '\n'
return out
def format_binary(data, prefix=''):
x = 0
@ -99,73 +112,69 @@ def format_binary(data, prefix=''):
out.append(format_binary_line(data[x:]))
return [prefix + x for x in out]
def format_binary_line(data):
left = ' '.join(['%02X' % byte_ord(c) for c in data])
right = ''.join([('.%c..' % c)[(byte_ord(c)+63)//95] for c in data])
left = ' '.join(['%02X' % ord(c) for c in data])
right = ''.join([('.%c..' % c)[(ord(c)+63)//95] for c in data])
return '%-50s %s' % (left, right)
def hexify(s):
return hexlify(s).upper()
def unhexify(s):
return unhexlify(s)
def safe_string(s):
out = ''
for c in s:
if (byte_ord(c) >= 32) and (byte_ord(c) <= 127):
if (ord(c) >= 32) and (ord(c) <= 127):
out += c
else:
out += '%%%02X' % byte_ord(c)
out += '%%%02X' % ord(c)
return out
# ''.join([['%%%02X' % ord(c), c][(ord(c) >= 32) and (ord(c) <= 127)] for c in s])
def bit_length(n):
try:
return n.bitlength()
except AttributeError:
norm = deflate_long(n, False)
hbyte = byte_ord(norm[0])
if hbyte == 0:
return 1
bitlen = len(norm) * 8
while not (hbyte & 0x80):
hbyte <<= 1
bitlen -= 1
return bitlen
norm = deflate_long(n, 0)
hbyte = ord(norm[0])
if hbyte == 0:
return 1
bitlen = len(norm) * 8
while not (hbyte & 0x80):
hbyte <<= 1
bitlen -= 1
return bitlen
def tb_strings():
return ''.join(traceback.format_exception(*sys.exc_info())).split('\n')
def generate_key_bytes(hash_alg, salt, key, nbytes):
def generate_key_bytes(hashclass, salt, key, nbytes):
"""
Given a password, passphrase, or other human-source key, scramble it
through a secure hash into some keyworthy bytes. This specific algorithm
is used for encrypting/decrypting private key files.
:param function hash_alg: A function which creates a new hash object, such
as ``hashlib.sha256``.
:param salt: data to salt the hash with.
:type salt: byte string
:param str key: human-entered password or passphrase.
:param int nbytes: number of bytes to generate.
:return: Key data `str`
@param hashclass: class from L{Crypto.Hash} that can be used as a secure
hashing function (like C{MD5} or C{SHA}).
@type hashclass: L{Crypto.Hash}
@param salt: data to salt the hash with.
@type salt: string
@param key: human-entered password or passphrase.
@type key: string
@param nbytes: number of bytes to generate.
@type nbytes: int
@return: key data
@rtype: string
"""
keydata = bytes()
digest = bytes()
keydata = ''
digest = ''
if len(salt) > 8:
salt = salt[:8]
while nbytes > 0:
hash_obj = hash_alg()
hash_obj = hashclass.new()
if len(digest) > 0:
hash_obj.update(digest)
hash_obj.update(b(key))
hash_obj.update(key)
hash_obj.update(salt)
digest = hash_obj.digest()
size = min(nbytes, len(digest))
@ -173,45 +182,42 @@ def generate_key_bytes(hash_alg, salt, key, nbytes):
nbytes -= size
return keydata
def load_host_keys(filename):
"""
Read a file of known SSH host keys, in the format used by openssh, and
return a compound dict of ``hostname -> keytype ->`` `PKey
<paramiko.pkey.PKey>`. The hostname may be an IP address or DNS name. The
keytype will be either ``"ssh-rsa"`` or ``"ssh-dss"``.
return a compound dict of C{hostname -> keytype ->} L{PKey <paramiko.pkey.PKey>}.
The hostname may be an IP address or DNS name. The keytype will be either
C{"ssh-rsa"} or C{"ssh-dss"}.
This type of file unfortunately doesn't exist on Windows, but on posix,
it will usually be stored in ``os.path.expanduser("~/.ssh/known_hosts")``.
it will usually be stored in C{os.path.expanduser("~/.ssh/known_hosts")}.
Since 1.5.3, this is just a wrapper around `.HostKeys`.
Since 1.5.3, this is just a wrapper around L{HostKeys}.
:param str filename: name of the file to read host keys from
:return:
nested dict of `.PKey` objects, indexed by hostname and then keytype
@param filename: name of the file to read host keys from
@type filename: str
@return: dict of host keys, indexed by hostname and then keytype
@rtype: dict(hostname, dict(keytype, L{PKey <paramiko.pkey.PKey>}))
"""
from paramiko.hostkeys import HostKeys
return HostKeys(filename)
def parse_ssh_config(file_obj):
"""
Provided only as a backward-compatible wrapper around `.SSHConfig`.
Provided only as a backward-compatible wrapper around L{SSHConfig}.
"""
config = SSHConfig()
config.parse(file_obj)
return config
def lookup_ssh_host_config(hostname, config):
"""
Provided only as a backward-compatible wrapper around `.SSHConfig`.
Provided only as a backward-compatible wrapper around L{SSHConfig}.
"""
return config.lookup(hostname)
def mod_inverse(x, m):
# it's crazy how small Python can make this function.
# it's crazy how small python can make this function.
u1, u2, u3 = 1, 0, m
v1, v2, v3 = 0, 1, x
@ -227,8 +233,6 @@ def mod_inverse(x, m):
_g_thread_ids = {}
_g_thread_counter = 0
_g_thread_lock = threading.Lock()
def get_thread_id():
global _g_thread_ids, _g_thread_counter, _g_thread_lock
tid = id(threading.currentThread())
@ -243,9 +247,8 @@ def get_thread_id():
_g_thread_lock.release()
return ret
def log_to_file(filename, level=DEBUG):
"""send paramiko logs to a logfile, if they're not already going somewhere"""
"send paramiko logs to a logfile, if they're not already going somewhere"
l = logging.getLogger("paramiko")
if len(l.handlers) > 0:
return
@ -256,7 +259,6 @@ def log_to_file(filename, level=DEBUG):
'%Y%m%d-%H:%M:%S'))
l.addHandler(lh)
# make only one filter object, so it doesn't get applied more than once
class PFilter (object):
def filter(self, record):
@ -264,59 +266,46 @@ class PFilter (object):
return True
_pfilter = PFilter()
def get_logger(name):
l = logging.getLogger(name)
l.addFilter(_pfilter)
return l
def retry_on_signal(function):
"""Retries function until it doesn't raise an EINTR error"""
while True:
try:
return function()
except EnvironmentError as e:
except EnvironmentError, e:
if e.errno != errno.EINTR:
raise
class Counter (object):
"""Stateful counter for CTR mode crypto"""
def __init__(self, nbits, initial_value=long(1), overflow=long(0)):
def __init__(self, nbits, initial_value=1L, overflow=0L):
self.blocksize = nbits / 8
self.overflow = overflow
# start with value - 1 so we don't have to store intermediate values when counting
# could the iv be 0?
if initial_value == 0:
self.value = array.array('c', max_byte * self.blocksize)
self.value = array.array('c', '\xFF' * self.blocksize)
else:
x = deflate_long(initial_value - 1, add_sign_padding=False)
self.value = array.array('c', zero_byte * (self.blocksize - len(x)) + x)
self.value = array.array('c', '\x00' * (self.blocksize - len(x)) + x)
def __call__(self):
"""Increament the counter and return the new value"""
i = self.blocksize - 1
while i > -1:
c = self.value[i] = byte_chr((byte_ord(self.value[i]) + 1) % 256)
if c != zero_byte:
c = self.value[i] = chr((ord(self.value[i]) + 1) % 256)
if c != '\x00':
return self.value.tostring()
i -= 1
# counter reset
x = deflate_long(self.overflow, add_sign_padding=False)
self.value = array.array('c', zero_byte * (self.blocksize - len(x)) + x)
self.value = array.array('c', '\x00' * (self.blocksize - len(x)) + x)
return self.value.tostring()
def new(cls, nbits, initial_value=long(1), overflow=long(0)):
def new(cls, nbits, initial_value=1L, overflow=0L):
return cls(nbits, initial_value=initial_value, overflow=overflow)
new = classmethod(new)
def constant_time_bytes_eq(a, b):
if len(a) != len(b):
return False
res = 0
# noinspection PyUnresolvedReferences
for i in (xrange if PY2 else range)(len(a)):
res |= byte_ord(a[i]) ^ byte_ord(b[i])
return res == 0

View File

@ -8,7 +8,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,19 +21,28 @@
Functions for communicating with Pageant, the basic windows ssh agent program.
"""
import array
import ctypes.wintypes
import platform
import os
import struct
from paramiko.util import *
import tempfile
import mmap
import array
import platform
import ctypes.wintypes
# if you're on windows, you should have one of these, i guess?
# ctypes is part of standard library since Python 2.5
_has_win32all = False
_has_ctypes = False
try:
import _thread as thread # Python 3.x
# win32gui is preferred over win32ui to avoid MFC dependencies
import win32gui
_has_win32all = True
except ImportError:
import thread # Python 2.5-2.7
from . import _winapi
try:
import ctypes
_has_ctypes = True
except ImportError:
pass
_AGENT_COPYDATA_ID = 0x804e50ba
_AGENT_MAX_MSGLEN = 8192
@ -43,7 +52,16 @@ win32con_WM_COPYDATA = 74
def _get_pageant_window_object():
return ctypes.windll.user32.FindWindowA('Pageant', 'Pageant')
if _has_win32all:
try:
hwnd = win32gui.FindWindow('Pageant', 'Pageant')
return hwnd
except win32gui.error:
pass
elif _has_ctypes:
# Return 0 if there is no Pageant window.
return ctypes.windll.user32.FindWindowA('Pageant', 'Pageant')
return None
def can_talk_to_agent():
@ -53,12 +71,11 @@ def can_talk_to_agent():
This checks both if we have the required libraries (win32all or ctypes)
and if there is a Pageant currently running.
"""
return bool(_get_pageant_window_object())
if (_has_win32all or _has_ctypes) and _get_pageant_window_object():
return True
return False
ULONG_PTR = ctypes.c_uint64 if platform.architecture()[0] == '64bit' else ctypes.c_uint32
class COPYDATASTRUCT(ctypes.Structure):
"""
ctypes implementation of
@ -68,46 +85,53 @@ class COPYDATASTRUCT(ctypes.Structure):
('num_data', ULONG_PTR),
('data_size', ctypes.wintypes.DWORD),
('data_loc', ctypes.c_void_p),
]
]
def _query_pageant(msg):
"""
Communication with the Pageant process is done through a shared
memory-mapped file.
"""
hwnd = _get_pageant_window_object()
if not hwnd:
# Raise a failure to connect exception, pageant isn't running anymore!
return None
# create a name for the mmap
map_name = 'PageantRequest%08x' % thread.get_ident()
# Write our pageant request string into the file (pageant will read this to determine what to do)
filename = tempfile.mktemp('.pag')
map_filename = os.path.basename(filename)
pymap = _winapi.MemoryMap(map_name, _AGENT_MAX_MSGLEN,
_winapi.get_security_attributes_for_user(),
)
with pymap:
pymap.write(msg)
f = open(filename, 'w+b')
f.write(msg )
# Ensure the rest of the file is empty, otherwise pageant will read this
f.write('\0' * (_AGENT_MAX_MSGLEN - len(msg)))
# Create the shared file map that pageant will use to read from
pymap = mmap.mmap(f.fileno(), _AGENT_MAX_MSGLEN, tagname=map_filename, access=mmap.ACCESS_WRITE)
try:
# Create an array buffer containing the mapped filename
char_buffer = array.array("c", b(map_name) + zero_byte)
char_buffer = array.array("c", map_filename + '\0')
char_buffer_address, char_buffer_size = char_buffer.buffer_info()
# Create a string to use for the SendMessage function call
cds = COPYDATASTRUCT(_AGENT_COPYDATA_ID, char_buffer_size,
char_buffer_address)
cds = COPYDATASTRUCT(_AGENT_COPYDATA_ID, char_buffer_size, char_buffer_address)
response = ctypes.windll.user32.SendMessageA(hwnd,
win32con_WM_COPYDATA, ctypes.sizeof(cds), ctypes.byref(cds))
if _has_win32all:
# win32gui.SendMessage should also allow the same pattern as
# ctypes, but let's keep it like this for now...
response = win32gui.SendMessage(hwnd, win32con_WM_COPYDATA, ctypes.sizeof(cds), ctypes.addressof(cds))
elif _has_ctypes:
response = ctypes.windll.user32.SendMessageA(hwnd, win32con_WM_COPYDATA, ctypes.sizeof(cds), ctypes.byref(cds))
else:
response = 0
if response > 0:
pymap.seek(0)
datalen = pymap.read(4)
retlen = struct.unpack('>I', datalen)[0]
return datalen + pymap.read(retlen)
return None
finally:
pymap.close()
f.close()
# Remove the file, it was temporary only
os.unlink(filename)
class PageantConnection(object):
class PageantConnection (object):
"""
Mock "connection" to an agent which roughly approximates the behavior of
a unix local-domain socket (as used by Agent). Requests are sent to the

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@ -1,2 +0,0 @@
[wheel]
universal = 1

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -40,10 +40,7 @@ import sys
try:
from setuptools import setup
kw = {
'install_requires': [
'pycrypto >= 2.1, != 2.4',
'ecdsa',
],
'install_requires': 'pycrypto >= 2.1, != 2.4',
}
except ImportError:
from distutils.core import setup
@ -54,31 +51,21 @@ if sys.platform == 'darwin':
setup_helper.install_custom_make_tarball()
setup(
name = "paramiko",
version = "1.14.0",
description = "SSH2 protocol library",
long_description = longdesc,
author = "Jeff Forcier",
author_email = "jeff@bitprophet.org",
url = "https://github.com/paramiko/paramiko/",
packages = [ 'paramiko' ],
license = 'LGPL',
platforms = 'Posix; MacOS X; Windows',
classifiers = [
'Development Status :: 5 - Production/Stable',
'Intended Audience :: Developers',
'License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)',
'Operating System :: OS Independent',
'Topic :: Internet',
'Topic :: Security :: Cryptography',
'Programming Language :: Python',
'Programming Language :: Python :: 2',
'Programming Language :: Python :: 2.6',
'Programming Language :: Python :: 2.7',
'Programming Language :: Python :: 3',
'Programming Language :: Python :: 3.2',
'Programming Language :: Python :: 3.3',
],
**kw
)
setup(name = "paramiko",
version = "1.8.1",
description = "SSH2 protocol library",
author = "Jeff Forcier",
author_email = "jeff@bitprophet.org",
url = "https://github.com/paramiko/paramiko/",
packages = [ 'paramiko' ],
license = 'LGPL',
platforms = 'Posix; MacOS X; Windows',
classifiers = [ 'Development Status :: 5 - Production/Stable',
'Intended Audience :: Developers',
'License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)',
'Operating System :: OS Independent',
'Topic :: Internet',
'Topic :: Security :: Cryptography' ],
long_description = longdesc,
**kw
)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.

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@ -1,6 +0,0 @@
SSH Agents
==========
.. automodule:: paramiko.agent
:inherited-members:
:no-special-members:

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@ -1,4 +0,0 @@
Buffered pipes
==============
.. automodule:: paramiko.buffered_pipe

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@ -1,4 +0,0 @@
Channel
=======
.. automodule:: paramiko.channel

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@ -1,5 +0,0 @@
Client
======
.. automodule:: paramiko.client
:member-order: bysource

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@ -1,5 +0,0 @@
Configuration
=============
.. automodule:: paramiko.config
:member-order: bysource

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@ -1,4 +0,0 @@
Buffered files
==============
.. automodule:: paramiko.file

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@ -1,5 +0,0 @@
Host keys / ``known_hosts`` files
=================================
.. automodule:: paramiko.hostkeys
:member-order: bysource

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@ -1,6 +0,0 @@
Key handling
============
.. automodule:: paramiko.pkey
.. automodule:: paramiko.dsskey
.. automodule:: paramiko.rsakey

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@ -1,4 +0,0 @@
Message
=======
.. automodule:: paramiko.message

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@ -1,4 +0,0 @@
Packetizer
==========
.. automodule:: paramiko.packet

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@ -1,4 +0,0 @@
Cross-platform pipe implementations
===================================
.. automodule:: paramiko.pipe

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@ -1,4 +0,0 @@
``ProxyCommand`` support
========================
.. automodule:: paramiko.proxy

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@ -1,5 +0,0 @@
Server implementation
=====================
.. automodule:: paramiko.server
:member-order: bysource

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@ -1,13 +0,0 @@
SFTP
====
.. automodule:: paramiko.sftp
.. automodule:: paramiko.sftp_client
.. automodule:: paramiko.sftp_server
.. automodule:: paramiko.sftp_attr
.. automodule:: paramiko.sftp_file
:inherited-members:
:no-special-members:
:show-inheritance:
.. automodule:: paramiko.sftp_handle
.. automodule:: paramiko.sftp_si

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@ -1,4 +0,0 @@
Exceptions
==========
.. automodule:: paramiko.ssh_exception

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@ -1,5 +0,0 @@
Transport
=========
.. automodule:: paramiko.transport
:member-order: bysource

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@ -1,16 +0,0 @@
# Obtain shared config values
import os, sys
sys.path.append(os.path.abspath('..'))
sys.path.append(os.path.abspath('../..'))
from shared_conf import *
# Enable autodoc, intersphinx
extensions.extend(['sphinx.ext.autodoc'])
# Autodoc settings
autodoc_default_flags = ['members', 'special-members']
# Sister-site links to WWW
html_theme_options['extra_nav_links'] = {
"Main website": 'http://www.paramiko.org',
}

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@ -1,72 +0,0 @@
====================================
Welcome to Paramiko's documentation!
====================================
This site covers Paramiko's usage & API documentation. For basic info on what
Paramiko is, including its public changelog & how the project is maintained,
please see `the main project website <http://paramiko.org>`_.
API documentation
=================
The high-level client API starts with creation of an `.SSHClient` object. For
more direct control, pass a socket (or socket-like object) to a `.Transport`,
and use `start_server <.Transport.start_server>` or `start_client
<.Transport.start_client>` to negotiate with the remote host as either a server
or client.
As a client, you are responsible for authenticating using a password or private
key, and checking the server's host key. (Key signature and verification is
done by paramiko, but you will need to provide private keys and check that the
content of a public key matches what you expected to see.)
As a server, you are responsible for deciding which users, passwords, and keys
to allow, and what kind of channels to allow.
Once you have finished, either side may request flow-controlled `channels
<.Channel>` to the other side, which are Python objects that act like sockets,
but send and receive data over the encrypted session.
For details, please see the following tables of contents (which are organized
by area of interest.)
Core SSH protocol classes
-------------------------
.. toctree::
api/channel
api/client
api/message
api/packet
api/transport
Authentication & keys
---------------------
.. toctree::
api/agent
api/hostkeys
api/keys
Other primary functions
-----------------------
.. toctree::
api/config
api/proxy
api/server
api/sftp
Miscellany
----------
.. toctree::
api/buffered_pipe
api/file
api/pipe
api/ssh_exception

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@ -1,41 +0,0 @@
from datetime import datetime
import alabaster
# Alabaster theme + mini-extension
html_theme_path = [alabaster.get_path()]
extensions = ['alabaster', 'sphinx.ext.intersphinx']
# Paths relative to invoking conf.py - not this shared file
html_theme = 'alabaster'
html_theme_options = {
'description': "A Python implementation of SSHv2.",
'github_user': 'paramiko',
'github_repo': 'paramiko',
'gittip_user': 'bitprophet',
'analytics_id': 'UA-18486793-2',
'travis_button': True,
}
html_sidebars = {
'**': [
'about.html',
'navigation.html',
'searchbox.html',
'donate.html',
]
}
# Everything intersphinx's to Python
intersphinx_mapping = {
'python': ('http://docs.python.org/2.6', None),
}
# Regular settings
project = 'Paramiko'
year = datetime.now().year
copyright = '%d Jeff Forcier' % year
master_doc = 'index'
templates_path = ['_templates']
exclude_trees = ['_build']
source_suffix = '.rst'
default_role = 'obj'

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@ -1,19 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
<channel>
<atom:link href="{{ atom }}" rel="self" type="application/rss+xml" />
<title>{{ title }}</title>
<link>{{ link }}</link>
<description>{{ description }}</description>
<pubDate>{{ date }}</pubDate>
{% for link, title, desc, date in posts %}
<item>
<link>{{ link }}</link>
<guid>{{ link }}</guid>
<title><![CDATA[{{ title }}]]></title>
<description><![CDATA[{{ desc }}]]></description>
<pubDate>{{ date }}</pubDate>
</item>
{% endfor %}
</channel>
</rss>

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@ -1,187 +0,0 @@
=========
Changelog
=========
* :release:`1.14.0 <2014-05-07>`
* :release:`1.13.1 <2014-05-07>`
* :release:`1.12.4 <2014-05-07>`
* :release:`1.11.6 <2014-05-07>`
* :bug:`-` `paramiko.file.BufferedFile.read` incorrectly returned text strings
after the Python 3 migration, despite bytes being more appropriate for file
contents (which may be binary or of an unknown encoding.) This has been
addressed.
.. note::
`paramiko.file.BufferedFile.readline` continues to return strings, not
bytes, as "lines" only make sense for textual data. It assumes UTF-8 by
default.
This should fix `this issue raised on the Obnam mailing list
<http://comments.gmane.org/gmane.comp.sysutils.backup.obnam/252>`_. Thanks
to Antoine Brenner for the patch.
* :bug:`-` Added self.args for exception classes. Used for unpickling. Related
to (`Fabric #986 <https://github.com/fabric/fabric/issues/986>`_, `Fabric
#714 <https://github.com/fabric/fabric/issues/714>`_). Thanks to Alex
Plugaru.
* :bug:`-` Fix logging error in sftp_client for filenames containing the '%'
character. Thanks to Antoine Brenner.
* :bug:`308` Fix regression in dsskey.py that caused sporadic signature
verification failures. Thanks to Chris Rose.
* :support:`299` Use deterministic signatures for ECDSA keys for improved
security. Thanks to Alex Gaynor.
* :support:`297` Replace PyCrypto's ``Random`` with `os.urandom` for improved
speed and security. Thanks again to Alex.
* :support:`295` Swap out a bunch of PyCrypto hash functions with use of
`hashlib`. Thanks to Alex Gaynor.
* :support:`290` (also :issue:`292`) Add support for building universal
(Python 2+3 compatible) wheel files during the release process. Courtesy of
Alex Gaynor.
* :support:`284` Add Python language trove identifiers to ``setup.py``. Thanks
to Alex Gaynor for catch & patch.
* :bug:`235` Improve string type testing in a handful of spots (e.g. ``s/if
type(x) is str/if isinstance(x, basestring)/g``.) Thanks to ``@ksamuel`` for
the report.
* :release:`1.13.0 <2014-03-13>`
* :release:`1.12.3 <2014-03-13>`
* :release:`1.11.5 <2014-03-13>`
* :release:`1.10.7 <2014-03-13>`
* :feature:`16` **Python 3 support!** Our test suite passes under Python 3, and
it (& Fabric's test suite) continues to pass under Python 2. **Python 2.5 is
no longer supported with this change!**
The merged code was built on many contributors' efforts, both code &
feedback. In no particular order, we thank Daniel Goertzen, Ivan Kolodyazhny,
Tomi Pieviläinen, Jason R. Coombs, Jan N. Schulze, ``@Lazik``, Dorian Pula,
Scott Maxwell, Tshepang Lekhonkhobe, Aaron Meurer, and Dave Halter.
* :support:`256 backported` Convert API documentation to Sphinx, yielding a new
API docs website to replace the old Epydoc one. Thanks to Olle Lundberg for
the initial conversion work.
* :bug:`-` Use constant-time hash comparison operations where possible, to
protect against `timing-based attacks
<http://codahale.com/a-lesson-in-timing-attacks/>`_. Thanks to Alex Gaynor
for the patch.
* :release:`1.12.2 <2014-02-14>`
* :release:`1.11.4 <2014-02-14>`
* :release:`1.10.6 <2014-02-14>`
* :feature:`58` Allow client code to access the stored SSH server banner via
`Transport.get_banner <paramiko.transport.Transport.get_banner>`. Thanks to
``@Jhoanor`` for the patch.
* :bug:`252` (`Fabric #1020 <https://github.com/fabric/fabric/issues/1020>`_)
Enhanced the implementation of ``ProxyCommand`` to avoid a deadlock/hang
condition that frequently occurs at ``Transport`` shutdown time. Thanks to
Mateusz Kobos, Matthijs van der Vleuten and Guillaume Zitta for the original
reports and to Marius Gedminas for helping test nontrivial use cases.
* :bug:`268` Fix some missed renames of ``ProxyCommand`` related error classes.
Thanks to Marius Gedminas for catch & patch.
* :bug:`34` (PR :issue:`35`) Fix SFTP prefetching incompatibility with some
SFTP servers regarding request/response ordering. Thanks to Richard
Kettlewell.
* :bug:`193` (and its attentant PRs :issue:`230` & :issue:`253`) Fix SSH agent
problems present on Windows. Thanks to David Hobbs for initial report and to
Aarni Koskela & Olle Lundberg for the patches.
* :release:`1.12.1 <2014-01-08>`
* :release:`1.11.3 <2014-01-08>`
* :release:`1.10.5 <2014-01-08>`
* :bug:`225 (1.12+)` Note ecdsa requirement in README. Thanks to Amaury
Rodriguez for the catch.
* :bug:`176` Fix AttributeError bugs in known_hosts file (re)loading. Thanks
to Nathan Scowcroft for the patch & Martin Blumenstingl for the initial test
case.
* :release:`1.12.0 <2013-09-27>`
* :release:`1.11.2 <2013-09-27>`
* :release:`1.10.4 <2013-09-27>`
* :feature:`152` Add tentative support for ECDSA keys. **This adds the ecdsa
module as a new dependency of Paramiko.** The module is available at
`warner/python-ecdsa on Github <https://github.com/warner/python-ecdsa>`_ and
`ecdsa on PyPI <https://pypi.python.org/pypi/ecdsa>`_.
* Note that you might still run into problems with key negotiation --
Paramiko picks the first key that the server offers, which might not be
what you have in your known_hosts file.
* Mega thanks to Ethan Glasser-Camp for the patch.
* :feature:`136` Add server-side support for the SSH protocol's 'env' command.
Thanks to Benjamin Pollack for the patch.
* :bug:`156 (1.11+)` Fix potential deadlock condition when using Channel
objects as sockets (e.g. when using SSH gatewaying). Thanks to Steven Noonan
and Frank Arnold for catch & patch.
* :bug:`179` Fix a missing variable causing errors when an ssh_config file has
a non-default AddressFamily set. Thanks to Ed Marshall & Tomaz Muraus for
catch & patch.
* :bug:`200` Fix an exception-causing typo in ``demo_simple.py``. Thanks to Alex
Buchanan for catch & Dave Foster for patch.
* :bug:`199` Typo fix in the license header cross-project. Thanks to Armin
Ronacher for catch & patch.
* :release:`1.11.1 <2013-09-20>`
* :release:`1.10.3 <2013-09-20>`
* :bug:`162` Clean up HMAC module import to avoid deadlocks in certain uses of
SSHClient. Thanks to Gernot Hillier for the catch & suggested fix.
* :bug:`36` Fix the port-forwarding demo to avoid file descriptor errors.
Thanks to Jonathan Halcrow for catch & patch.
* :bug:`168` Update config handling to properly handle multiple 'localforward'
and 'remoteforward' keys. Thanks to Emre Yılmaz for the patch.
* :release:`1.11.0 <2013-07-26>`
* :release:`1.10.2 <2013-07-26>`
* :bug:`98 major` On Windows, when interacting with the PuTTY PAgeant, Paramiko
now creates the shared memory map with explicit Security Attributes of the
user, which is the same technique employed by the canonical PuTTY library to
avoid permissions issues when Paramiko is running under a different UAC
context than the PuTTY Ageant process. Thanks to Jason R. Coombs for the
patch.
* :support:`100` Remove use of PyWin32 in ``win_pageant`` module. Module was
already dependent on ctypes for constructing appropriate structures and had
ctypes implementations of all functionality. Thanks to Jason R. Coombs for
the patch.
* :bug:`87 major` Ensure updates to ``known_hosts`` files account for any
updates to said files after Paramiko initially read them. (Includes related
fix to guard against duplicate entries during subsequent ``known_hosts``
loads.) Thanks to ``@sunweaver`` for the contribution.
* :bug:`153` (also :issue:`67`) Warn on parse failure when reading known_hosts
file. Thanks to ``@glasserc`` for patch.
* :bug:`146` Indentation fixes for readability. Thanks to Abhinav Upadhyay for
catch & patch.
* :release:`1.10.1 <2013-04-05>`
* :bug:`142` (`Fabric #811 <https://github.com/fabric/fabric/issues/811>`_)
SFTP put of empty file will still return the attributes of the put file.
Thanks to Jason R. Coombs for the patch.
* :bug:`154` (`Fabric #876 <https://github.com/fabric/fabric/issues/876>`_)
Forwarded SSH agent connections left stale local pipes lying around, which
could cause local (and sometimes remote or network) resource starvation when
running many agent-using remote commands. Thanks to Kevin Tegtmeier for catch
& patch.
* :release:`1.10.0 <2013-03-01>`
* :feature:`66` Batch SFTP writes to help speed up file transfers. Thanks to
Olle Lundberg for the patch.
* :bug:`133 major` Fix handling of window-change events to be on-spec and not
attempt to wait for a response from the remote sshd; this fixes problems with
less common targets such as some Cisco devices. Thanks to Phillip Heller for
catch & patch.
* :feature:`93` Overhaul SSH config parsing to be in line with ``man
ssh_config`` (& the behavior of ``ssh`` itself), including addition of parameter
expansion within config values. Thanks to Olle Lundberg for the patch.
* :feature:`110` Honor SSH config ``AddressFamily`` setting when looking up
local host's FQDN. Thanks to John Hensley for the patch.
* :feature:`128` Defer FQDN resolution until needed, when parsing SSH config
files. Thanks to Parantapa Bhattacharya for catch & patch.
* :bug:`102 major` Forego random padding for packets when running under
``*-ctr`` ciphers. This corrects some slowdowns on platforms where random
byte generation is inefficient (e.g. Windows). Thanks to ``@warthog618`` for
catch & patch, and Michael van der Kolff for code/technique review.
* :feature:`127` Turn ``SFTPFile`` into a context manager. Thanks to Michael
Williamson for the patch.
* :feature:`116` Limit ``Message.get_bytes`` to an upper bound of 1MB to protect
against potential DoS vectors. Thanks to ``@mvschaik`` for catch & patch.
* :feature:`115` Add convenience ``get_pty`` kwarg to ``Client.exec_command`` so
users not manually controlling a channel object can still toggle PTY
creation. Thanks to Michael van der Kolff for the patch.
* :feature:`71` Add ``SFTPClient.putfo`` and ``.getfo`` methods to allow direct
uploading/downloading of file-like objects. Thanks to Eric Buehl for the
patch.
* :feature:`113` Add ``timeout`` parameter to ``SSHClient.exec_command`` for
easier setting of the command's internal channel object's timeout. Thanks to
Cernov Vladimir for the patch.
* :support:`94` Remove duplication of SSH port constant. Thanks to Olle
Lundberg for the catch.
* :feature:`80` Expose the internal "is closed" property of the file transfer
class ``BufferedFile`` as ``.closed``, better conforming to Python's file
interface. Thanks to ``@smunaut`` and James Hiscock for catch & patch.

View File

@ -1,28 +0,0 @@
# Obtain shared config values
import sys
import os
from os.path import abspath, join, dirname
sys.path.append(abspath(join(dirname(__file__), '..')))
from shared_conf import *
# Releases changelog extension
extensions.append('releases')
# Paramiko 1.x tags start with 'v'. Meh.
releases_release_uri = "https://github.com/paramiko/paramiko/tree/v%s"
releases_issue_uri = "https://github.com/paramiko/paramiko/issues/%s"
# Intersphinx for referencing API/usage docs
extensions.append('sphinx.ext.intersphinx')
# Default is 'local' building, but reference the public docs site when building
# under RTD.
target = join(dirname(__file__), '..', 'docs', '_build')
if os.environ.get('READTHEDOCS') == 'True':
# TODO: switch to docs.paramiko.org post go-live of sphinx API docs
target = 'http://docs.paramiko.org/en/latest/'
intersphinx_mapping['docs'] = (target, None)
# Sister-site links to API docs
html_theme_options['extra_nav_links'] = {
"API Docs": 'http://docs.paramiko.org',
}

View File

@ -1,11 +0,0 @@
=======
Contact
=======
You can get in touch with the developer & user community in any of the
following ways:
* IRC: ``#paramiko`` on Freenode
* Mailing list: ``paramiko@librelist.com`` (see `the LibreList homepage
<http://librelist.com>`_ for usage details).
* This website - a blog section is forthcoming.

View File

@ -1,22 +0,0 @@
============
Contributing
============
How to get the code
===================
Our primary Git repository is on Github at `paramiko/paramiko
<https://github.com/paramiko/paramiko>`_; please follow their instructions for
cloning to your local system. (If you intend to submit patches/pull requests,
we recommend forking first, then cloning your fork. Github has excellent
documentation for all this.)
How to submit bug reports or new code
=====================================
Please see `this project-agnostic contribution guide
<http://contribution-guide.org>`_ - we follow it explicitly.
Our current changelog is located in ``sites/www/changelog.rst`` - the top
level files like ``ChangeLog.*`` and ``NEWS`` are historical only.

View File

@ -1,9 +0,0 @@
===================================
Frequently Asked/Answered Questions
===================================
Which version should I use? I see multiple active releases.
===========================================================
Please see :ref:`the installation docs <release-lines>` which have an explicit
section about this topic.

View File

@ -1,36 +0,0 @@
Welcome to Paramiko!
====================
Paramiko is a Python (2.6+, 3.3+) implementation of the SSHv2 protocol [#]_,
providing both client and server functionality. While it leverages a Python C
extension for low level cryptography (`PyCrypto <http://pycrypto.org>`_),
Paramiko itself is a pure Python interface around SSH networking concepts.
This website covers project information for Paramiko such as the changelog,
contribution guidelines, development roadmap, news/blog, and so forth. Detailed
usage and API documentation can be found at our code documentation site,
`docs.paramiko.org <http://docs.paramiko.org>`_.
Please see the sidebar to the left to begin.
.. toctree::
:hidden:
changelog
FAQs <faq>
installing
contributing
contact
.. rubric:: Footnotes
.. [#]
SSH is defined in RFCs
`4251 <http://www.rfc-editor.org/rfc/rfc4251.txt>`_,
`4252 <http://www.rfc-editor.org/rfc/rfc4252.txt>`_,
`4253 <http://www.rfc-editor.org/rfc/rfc4253.txt>`_, and
`4254 <http://www.rfc-editor.org/rfc/rfc4254.txt>`_;
the primary working implementation of the protocol is the `OpenSSH project
<http://openssh.org>`_. Paramiko implements a large portion of the SSH
feature set, but there are occasional gaps.

View File

@ -1,101 +0,0 @@
==========
Installing
==========
.. _paramiko-itself:
Paramiko itself
===============
The recommended way to get Paramiko is to **install the latest stable release**
via `pip <http://pip-installer.org>`_::
$ pip install paramiko
.. note::
Users who want the bleeding edge can install the development version via
``pip install paramiko==dev``.
We currently support **Python 2.6, 2.7 and 3.3** (Python **3.2** should also
work but has a less-strong compatibility guarantee from us.) Users on Python
2.5 or older are urged to upgrade.
Paramiko has two dependencies: the pure-Python ECDSA module ``ecdsa``, and the
PyCrypto C extension. ``ecdsa`` is easily installable from wherever you
obtained Paramiko's package; PyCrypto may require more work. Read on for
details.
.. _release-lines:
Release lines
-------------
Users desiring stability may wish to pin themselves to a specific release line
once they first start using Paramiko; to assist in this, we guarantee bugfixes
for at least the last 2-3 releases including the latest stable one. This currently means Paramiko **1.11** through **1.13**.
If you're unsure which version to install, we have suggestions:
* **Completely new users** should always default to the **latest stable
release** (as above, whatever is newest / whatever shows up with ``pip
install paramiko``.)
* **Users upgrading from a much older version** (e.g. the 1.7.x line) should
probably get the **oldest actively supported line** (see the paragraph above
this list for what that currently is.)
* **Everybody else** is hopefully already "on" a given version and can
carefully upgrade to whichever version they care to, when their release line
stops being supported.
PyCrypto
========
`PyCrypto <https://www.dlitz.net/software/pycrypto/>`_ provides the low-level
(C-based) encryption algorithms we need to implement the SSH protocol. There
are a couple gotchas associated with installing PyCrypto: its compatibility
with Python's package tools, and the fact that it is a C-based extension.
C extension
-----------
Unless you are installing from a precompiled source such as a Debian apt
repository or RedHat RPM, or using :ref:`pypm <pypm>`, you will also need the
ability to build Python C-based modules from source in order to install
PyCrypto. Users on **Unix-based platforms** such as Ubuntu or Mac OS X will
need the traditional C build toolchain installed (e.g. Developer Tools / XCode
Tools on the Mac, or the ``build-essential`` package on Ubuntu or Debian Linux
-- basically, anything with ``gcc``, ``make`` and so forth) as well as the
Python development libraries, often named ``python-dev`` or similar.
For **Windows** users we recommend using :ref:`pypm`, installing a C
development environment such as `Cygwin <http://cygwin.com>`_ or obtaining a
precompiled Win32 PyCrypto package from `voidspace's Python modules page
<http://www.voidspace.org.uk/python/modules.shtml#pycrypto>`_.
.. note::
Some Windows users whose Python is 64-bit have found that the PyCrypto
dependency ``winrandom`` may not install properly, leading to ImportErrors.
In this scenario, you'll probably need to compile ``winrandom`` yourself
via e.g. MS Visual Studio. See `Fabric #194
<https://github.com/fabric/fabric/issues/194>`_ for info.
.. _pypm:
ActivePython and PyPM
=====================
Windows users who already have ActiveState's `ActivePython
<http://www.activestate.com/activepython/downloads>`_ distribution installed
may find Paramiko is best installed with `its package manager, PyPM
<http://code.activestate.com/pypm/>`_. Below is example output from an
installation of Paramiko via ``pypm``::
C:\> pypm install paramiko
The following packages will be installed into "%APPDATA%\Python" (2.7):
paramiko-1.7.8 pycrypto-2.4
Get: [pypm-free.activestate.com] paramiko 1.7.8
Get: [pypm-free.activestate.com] pycrypto 2.4
Installing paramiko-1.7.8
Installing pycrypto-2.4
C:\>

View File

@ -1,49 +0,0 @@
from os import mkdir
from os.path import join
from shutil import rmtree, copytree
from invoke import Collection, ctask as task
from invocations import docs as _docs
from invocations.packaging import publish
d = 'sites'
# Usage doc/API site (published as docs.paramiko.org)
docs_path = join(d, 'docs')
docs_build = join(docs_path, '_build')
docs = Collection.from_module(_docs, name='docs', config={
'sphinx.source': docs_path,
'sphinx.target': docs_build,
})
# Main/about/changelog site ((www.)?paramiko.org)
www_path = join(d, 'www')
www = Collection.from_module(_docs, name='www', config={
'sphinx.source': www_path,
'sphinx.target': join(www_path, '_build'),
})
# Until we move to spec-based testing
@task
def test(ctx):
ctx.run("python test.py --verbose")
@task
def coverage(ctx):
ctx.run("coverage run --source=paramiko test.py --verbose")
# Until we stop bundling docs w/ releases. Need to discover use cases first.
@task('docs') # Will invoke the API doc site build
def release(ctx):
# Move the built docs into where Epydocs used to live
target = 'docs'
rmtree(target, ignore_errors=True)
copytree(docs_build, target)
# Publish
publish(ctx, wheel=True)
ns = Collection(test, coverage, release, docs=docs, www=www)

43
test.py
View File

@ -9,7 +9,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -29,21 +29,22 @@ import unittest
from optparse import OptionParser
import paramiko
import threading
from paramiko.py3compat import PY2
sys.path.append('tests')
from tests.test_message import MessageTest
from tests.test_file import BufferedFileTest
from tests.test_buffered_pipe import BufferedPipeTest
from tests.test_util import UtilTest
from tests.test_hostkeys import HostKeysTest
from tests.test_pkey import KeyTest
from tests.test_kex import KexTest
from tests.test_packetizer import PacketizerTest
from tests.test_auth import AuthTest
from tests.test_transport import TransportTest
from tests.test_client import SSHClientTest
from test_message import MessageTest
from test_file import BufferedFileTest
from test_buffered_pipe import BufferedPipeTest
from test_util import UtilTest
from test_hostkeys import HostKeysTest
from test_pkey import KeyTest
from test_kex import KexTest
from test_packetizer import PacketizerTest
from test_auth import AuthTest
from test_transport import TransportTest
from test_sftp import SFTPTest
from test_sftp_big import BigSFTPTest
from test_client import SSHClientTest
default_host = 'localhost'
default_user = os.environ.get('USER', 'nobody')
@ -101,23 +102,20 @@ def main():
parser.add_option('-P', '--sftp-passwd', dest='password', type='string', default=default_passwd,
metavar='<password>',
help='[with -R] (optional) password to unlock the private key for remote sftp tests')
options, args = parser.parse_args()
# setup logging
paramiko.util.log_to_file('test.log')
if options.use_sftp:
from tests.test_sftp import SFTPTest
if options.use_loopback_sftp:
SFTPTest.init_loopback()
else:
SFTPTest.init(options.hostname, options.username, options.keyfile, options.password)
if not options.use_big_file:
SFTPTest.set_big_file_test(False)
if options.use_big_file:
from tests.test_sftp_big import BigSFTPTest
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(MessageTest))
suite.addTest(unittest.makeSuite(BufferedFileTest))
@ -149,10 +147,7 @@ def main():
# TODO: make that not a problem, jeez
for thread in threading.enumerate():
if thread is not threading.currentThread():
if PY2:
thread._Thread__stop()
else:
thread._stop()
thread._Thread__stop()
# Exit correctly
if not result.wasSuccessful():
sys.exit(1)

View File

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,7 +21,6 @@
"""
import threading, socket
from paramiko.common import asbytes
class LoopSocket (object):
@ -32,7 +31,7 @@ class LoopSocket (object):
"""
def __init__(self):
self.__in_buffer = bytes()
self.__in_buffer = ''
self.__lock = threading.Lock()
self.__cv = threading.Condition(self.__lock)
self.__timeout = None
@ -42,12 +41,11 @@ class LoopSocket (object):
self.__unlink()
try:
self.__lock.acquire()
self.__in_buffer = bytes()
self.__in_buffer = ''
finally:
self.__lock.release()
def send(self, data):
data = asbytes(data)
if self.__mate is None:
# EOF
raise EOFError()
@ -59,7 +57,7 @@ class LoopSocket (object):
try:
if self.__mate is None:
# EOF
return bytes()
return ''
if len(self.__in_buffer) == 0:
self.__cv.wait(self.__timeout)
if len(self.__in_buffer) == 0:

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -23,7 +23,6 @@ A stub SFTP server for loopback SFTP testing.
import os
from paramiko import ServerInterface, SFTPServerInterface, SFTPServer, SFTPAttributes, \
SFTPHandle, SFTP_OK, AUTH_SUCCESSFUL, OPEN_SUCCEEDED
from paramiko.common import o666
class StubServer (ServerInterface):
@ -39,7 +38,7 @@ class StubSFTPHandle (SFTPHandle):
def stat(self):
try:
return SFTPAttributes.from_stat(os.fstat(self.readfile.fileno()))
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
def chattr(self, attr):
@ -48,7 +47,7 @@ class StubSFTPHandle (SFTPHandle):
try:
SFTPServer.set_file_attr(self.filename, attr)
return SFTP_OK
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
@ -63,34 +62,34 @@ class StubSFTPServer (SFTPServerInterface):
def list_folder(self, path):
path = self._realpath(path)
try:
out = []
out = [ ]
flist = os.listdir(path)
for fname in flist:
attr = SFTPAttributes.from_stat(os.stat(os.path.join(path, fname)))
attr.filename = fname
out.append(attr)
return out
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
def stat(self, path):
path = self._realpath(path)
try:
return SFTPAttributes.from_stat(os.stat(path))
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
def lstat(self, path):
path = self._realpath(path)
try:
return SFTPAttributes.from_stat(os.lstat(path))
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
def open(self, path, flags, attr):
path = self._realpath(path)
try:
binary_flag = getattr(os, 'O_BINARY', 0)
binary_flag = getattr(os, 'O_BINARY', 0)
flags |= binary_flag
mode = getattr(attr, 'st_mode', None)
if mode is not None:
@ -98,8 +97,8 @@ class StubSFTPServer (SFTPServerInterface):
else:
# os.open() defaults to 0777 which is
# an odd default mode for files
fd = os.open(path, flags, o666)
except OSError as e:
fd = os.open(path, flags, 0666)
except OSError, e:
return SFTPServer.convert_errno(e.errno)
if (flags & os.O_CREAT) and (attr is not None):
attr._flags &= ~attr.FLAG_PERMISSIONS
@ -119,7 +118,7 @@ class StubSFTPServer (SFTPServerInterface):
fstr = 'rb'
try:
f = os.fdopen(fd, fstr)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
fobj = StubSFTPHandle(flags)
fobj.filename = path
@ -131,7 +130,7 @@ class StubSFTPServer (SFTPServerInterface):
path = self._realpath(path)
try:
os.remove(path)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
return SFTP_OK
@ -140,7 +139,7 @@ class StubSFTPServer (SFTPServerInterface):
newpath = self._realpath(newpath)
try:
os.rename(oldpath, newpath)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
return SFTP_OK
@ -150,7 +149,7 @@ class StubSFTPServer (SFTPServerInterface):
os.mkdir(path)
if attr is not None:
SFTPServer.set_file_attr(path, attr)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
return SFTP_OK
@ -158,7 +157,7 @@ class StubSFTPServer (SFTPServerInterface):
path = self._realpath(path)
try:
os.rmdir(path)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
return SFTP_OK
@ -166,7 +165,7 @@ class StubSFTPServer (SFTPServerInterface):
path = self._realpath(path)
try:
SFTPServer.set_file_attr(path, attr)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
return SFTP_OK
@ -186,7 +185,7 @@ class StubSFTPServer (SFTPServerInterface):
target_path = '<error>'
try:
os.symlink(target_path, path)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
return SFTP_OK
@ -194,7 +193,7 @@ class StubSFTPServer (SFTPServerInterface):
path = self._realpath(path)
try:
symlink = os.readlink(path)
except OSError as e:
except OSError, e:
return SFTPServer.convert_errno(e.errno)
# if it's absolute, remove the root
if os.path.isabs(symlink):

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -25,21 +25,18 @@ import threading
import unittest
from paramiko import Transport, ServerInterface, RSAKey, DSSKey, \
BadAuthenticationType, InteractiveQuery, \
SSHException, BadAuthenticationType, InteractiveQuery, ChannelException, \
AuthenticationException
from paramiko import AUTH_FAILED, AUTH_PARTIALLY_SUCCESSFUL, AUTH_SUCCESSFUL
from paramiko.py3compat import u
from tests.loop import LoopSocket
from tests.util import test_path
_pwd = u('\u2022')
from paramiko import OPEN_SUCCEEDED, OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED
from loop import LoopSocket
class NullServer (ServerInterface):
paranoid_did_password = False
paranoid_did_public_key = False
paranoid_key = DSSKey.from_private_key_file(test_path('test_dss.key'))
paranoid_key = DSSKey.from_private_key_file('tests/test_dss.key')
def get_allowed_auths(self, username):
if username == 'slowdive':
return 'publickey,password'
@ -67,7 +64,7 @@ class NullServer (ServerInterface):
if self.paranoid_did_public_key:
return AUTH_SUCCESSFUL
return AUTH_PARTIALLY_SUCCESSFUL
if (username == 'utf8') and (password == _pwd):
if (username == 'utf8') and (password == u'\u2022'):
return AUTH_SUCCESSFUL
if (username == 'non-utf8') and (password == '\xff'):
return AUTH_SUCCESSFUL
@ -113,18 +110,18 @@ class AuthTest (unittest.TestCase):
self.sockc.close()
def start_server(self):
host_key = RSAKey.from_private_key_file(test_path('test_rsa.key'))
self.public_host_key = RSAKey(data=host_key.asbytes())
host_key = RSAKey.from_private_key_file('tests/test_rsa.key')
self.public_host_key = RSAKey(data=str(host_key))
self.ts.add_server_key(host_key)
self.event = threading.Event()
self.server = NullServer()
self.assertTrue(not self.event.isSet())
self.assert_(not self.event.isSet())
self.ts.start_server(self.event, self.server)
def verify_finished(self):
self.event.wait(1.0)
self.assertTrue(self.event.isSet())
self.assertTrue(self.ts.is_active())
self.assert_(self.event.isSet())
self.assert_(self.ts.is_active())
def test_1_bad_auth_type(self):
"""
@ -135,11 +132,11 @@ class AuthTest (unittest.TestCase):
try:
self.tc.connect(hostkey=self.public_host_key,
username='unknown', password='error')
self.assertTrue(False)
self.assert_(False)
except:
etype, evalue, etb = sys.exc_info()
self.assertEqual(BadAuthenticationType, etype)
self.assertEqual(['publickey'], evalue.allowed_types)
self.assertEquals(BadAuthenticationType, etype)
self.assertEquals(['publickey'], evalue.allowed_types)
def test_2_bad_password(self):
"""
@ -150,10 +147,10 @@ class AuthTest (unittest.TestCase):
self.tc.connect(hostkey=self.public_host_key)
try:
self.tc.auth_password(username='slowdive', password='error')
self.assertTrue(False)
self.assert_(False)
except:
etype, evalue, etb = sys.exc_info()
self.assertTrue(issubclass(etype, AuthenticationException))
self.assert_(issubclass(etype, AuthenticationException))
self.tc.auth_password(username='slowdive', password='pygmalion')
self.verify_finished()
@ -164,10 +161,10 @@ class AuthTest (unittest.TestCase):
self.start_server()
self.tc.connect(hostkey=self.public_host_key)
remain = self.tc.auth_password(username='paranoid', password='paranoid')
self.assertEqual(['publickey'], remain)
key = DSSKey.from_private_key_file(test_path('test_dss.key'))
self.assertEquals(['publickey'], remain)
key = DSSKey.from_private_key_file('tests/test_dss.key')
remain = self.tc.auth_publickey(username='paranoid', key=key)
self.assertEqual([], remain)
self.assertEquals([], remain)
self.verify_finished()
def test_4_interactive_auth(self):
@ -183,9 +180,9 @@ class AuthTest (unittest.TestCase):
self.got_prompts = prompts
return ['cat']
remain = self.tc.auth_interactive('commie', handler)
self.assertEqual(self.got_title, 'password')
self.assertEqual(self.got_prompts, [('Password', False)])
self.assertEqual([], remain)
self.assertEquals(self.got_title, 'password')
self.assertEquals(self.got_prompts, [('Password', False)])
self.assertEquals([], remain)
self.verify_finished()
def test_5_interactive_auth_fallback(self):
@ -196,7 +193,7 @@ class AuthTest (unittest.TestCase):
self.start_server()
self.tc.connect(hostkey=self.public_host_key)
remain = self.tc.auth_password('commie', 'cat')
self.assertEqual([], remain)
self.assertEquals([], remain)
self.verify_finished()
def test_6_auth_utf8(self):
@ -205,8 +202,8 @@ class AuthTest (unittest.TestCase):
"""
self.start_server()
self.tc.connect(hostkey=self.public_host_key)
remain = self.tc.auth_password('utf8', _pwd)
self.assertEqual([], remain)
remain = self.tc.auth_password('utf8', u'\u2022')
self.assertEquals([], remain)
self.verify_finished()
def test_7_auth_non_utf8(self):
@ -217,7 +214,7 @@ class AuthTest (unittest.TestCase):
self.start_server()
self.tc.connect(hostkey=self.public_host_key)
remain = self.tc.auth_password('non-utf8', '\xff')
self.assertEqual([], remain)
self.assertEquals([], remain)
self.verify_finished()
def test_8_auth_gets_disconnected(self):
@ -231,4 +228,4 @@ class AuthTest (unittest.TestCase):
remain = self.tc.auth_password('bad-server', 'hello')
except:
etype, evalue, etb = sys.exc_info()
self.assertTrue(issubclass(etype, AuthenticationException))
self.assert_(issubclass(etype, AuthenticationException))

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -22,60 +22,61 @@ Some unit tests for BufferedPipe.
import threading
import time
import unittest
from paramiko.buffered_pipe import BufferedPipe, PipeTimeout
from paramiko import pipe
from tests.util import ParamikoTest
from util import ParamikoTest
def delay_thread(p):
p.feed('a')
def delay_thread(pipe):
pipe.feed('a')
time.sleep(0.5)
p.feed('b')
p.close()
pipe.feed('b')
pipe.close()
def close_thread(p):
def close_thread(pipe):
time.sleep(0.2)
p.close()
pipe.close()
class BufferedPipeTest(ParamikoTest):
def test_1_buffered_pipe(self):
p = BufferedPipe()
self.assertTrue(not p.read_ready())
self.assert_(not p.read_ready())
p.feed('hello.')
self.assertTrue(p.read_ready())
self.assert_(p.read_ready())
data = p.read(6)
self.assertEqual(b'hello.', data)
self.assertEquals('hello.', data)
p.feed('plus/minus')
self.assertEqual(b'plu', p.read(3))
self.assertEqual(b's/m', p.read(3))
self.assertEqual(b'inus', p.read(4))
self.assertEquals('plu', p.read(3))
self.assertEquals('s/m', p.read(3))
self.assertEquals('inus', p.read(4))
p.close()
self.assertTrue(not p.read_ready())
self.assertEqual(b'', p.read(1))
self.assert_(not p.read_ready())
self.assertEquals('', p.read(1))
def test_2_delay(self):
p = BufferedPipe()
self.assertTrue(not p.read_ready())
self.assert_(not p.read_ready())
threading.Thread(target=delay_thread, args=(p,)).start()
self.assertEqual(b'a', p.read(1, 0.1))
self.assertEquals('a', p.read(1, 0.1))
try:
p.read(1, 0.1)
self.assertTrue(False)
self.assert_(False)
except PipeTimeout:
pass
self.assertEqual(b'b', p.read(1, 1.0))
self.assertEqual(b'', p.read(1))
self.assertEquals('b', p.read(1, 1.0))
self.assertEquals('', p.read(1))
def test_3_close_while_reading(self):
p = BufferedPipe()
threading.Thread(target=close_thread, args=(p,)).start()
data = p.read(1, 1.0)
self.assertEqual(b'', data)
self.assertEquals('', data)
def test_4_or_pipe(self):
p = pipe.make_pipe()
@ -89,3 +90,4 @@ class BufferedPipeTest(ParamikoTest):
self.assertTrue(p._set)
p2.clear()
self.assertFalse(p._set)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,15 +21,13 @@ Some unit tests for SSHClient.
"""
import socket
from tempfile import mkstemp
import threading
import time
import unittest
import weakref
import warnings
import os
from tests.util import test_path
from binascii import hexlify
import paramiko
from paramiko.common import PY2
class NullServer (paramiko.ServerInterface):
@ -45,7 +43,7 @@ class NullServer (paramiko.ServerInterface):
return paramiko.AUTH_FAILED
def check_auth_publickey(self, username, key):
if (key.get_name() == 'ssh-dss') and key.get_fingerprint() == b'\x44\x78\xf0\xb9\xa2\x3c\xc5\x18\x20\x09\xff\x75\x5b\xc1\xd2\x6c':
if (key.get_name() == 'ssh-dss') and (hexlify(key.get_fingerprint()) == '4478f0b9a23cc5182009ff755bc1d26c'):
return paramiko.AUTH_SUCCESSFUL
return paramiko.AUTH_FAILED
@ -66,6 +64,8 @@ class SSHClientTest (unittest.TestCase):
self.sockl.listen(1)
self.addr, self.port = self.sockl.getsockname()
self.event = threading.Event()
thread = threading.Thread(target=self._run)
thread.start()
def tearDown(self):
for attr in "tc ts socks sockl".split():
@ -75,28 +75,28 @@ class SSHClientTest (unittest.TestCase):
def _run(self):
self.socks, addr = self.sockl.accept()
self.ts = paramiko.Transport(self.socks)
host_key = paramiko.RSAKey.from_private_key_file(test_path('test_rsa.key'))
host_key = paramiko.RSAKey.from_private_key_file('tests/test_rsa.key')
self.ts.add_server_key(host_key)
server = NullServer()
self.ts.start_server(self.event, server)
def test_1_client(self):
"""
verify that the SSHClient stuff works too.
"""
threading.Thread(target=self._run).start()
host_key = paramiko.RSAKey.from_private_key_file(test_path('test_rsa.key'))
public_host_key = paramiko.RSAKey(data=host_key.asbytes())
host_key = paramiko.RSAKey.from_private_key_file('tests/test_rsa.key')
public_host_key = paramiko.RSAKey(data=str(host_key))
self.tc = paramiko.SSHClient()
self.tc.get_host_keys().add('[%s]:%d' % (self.addr, self.port), 'ssh-rsa', public_host_key)
self.tc.connect(self.addr, self.port, username='slowdive', password='pygmalion')
self.event.wait(1.0)
self.assertTrue(self.event.isSet())
self.assertTrue(self.ts.is_active())
self.assertEqual('slowdive', self.ts.get_username())
self.assertEqual(True, self.ts.is_authenticated())
self.assert_(self.event.isSet())
self.assert_(self.ts.is_active())
self.assertEquals('slowdive', self.ts.get_username())
self.assertEquals(True, self.ts.is_authenticated())
stdin, stdout, stderr = self.tc.exec_command('yes')
schan = self.ts.accept(1.0)
@ -105,10 +105,10 @@ class SSHClientTest (unittest.TestCase):
schan.send_stderr('This is on stderr.\n')
schan.close()
self.assertEqual('Hello there.\n', stdout.readline())
self.assertEqual('', stdout.readline())
self.assertEqual('This is on stderr.\n', stderr.readline())
self.assertEqual('', stderr.readline())
self.assertEquals('Hello there.\n', stdout.readline())
self.assertEquals('', stdout.readline())
self.assertEquals('This is on stderr.\n', stderr.readline())
self.assertEquals('', stderr.readline())
stdin.close()
stdout.close()
@ -118,19 +118,18 @@ class SSHClientTest (unittest.TestCase):
"""
verify that SSHClient works with a DSA key.
"""
threading.Thread(target=self._run).start()
host_key = paramiko.RSAKey.from_private_key_file(test_path('test_rsa.key'))
public_host_key = paramiko.RSAKey(data=host_key.asbytes())
host_key = paramiko.RSAKey.from_private_key_file('tests/test_rsa.key')
public_host_key = paramiko.RSAKey(data=str(host_key))
self.tc = paramiko.SSHClient()
self.tc.get_host_keys().add('[%s]:%d' % (self.addr, self.port), 'ssh-rsa', public_host_key)
self.tc.connect(self.addr, self.port, username='slowdive', key_filename=test_path('test_dss.key'))
self.tc.connect(self.addr, self.port, username='slowdive', key_filename='tests/test_dss.key')
self.event.wait(1.0)
self.assertTrue(self.event.isSet())
self.assertTrue(self.ts.is_active())
self.assertEqual('slowdive', self.ts.get_username())
self.assertEqual(True, self.ts.is_authenticated())
self.assert_(self.event.isSet())
self.assert_(self.ts.is_active())
self.assertEquals('slowdive', self.ts.get_username())
self.assertEquals(True, self.ts.is_authenticated())
stdin, stdout, stderr = self.tc.exec_command('yes')
schan = self.ts.accept(1.0)
@ -139,10 +138,10 @@ class SSHClientTest (unittest.TestCase):
schan.send_stderr('This is on stderr.\n')
schan.close()
self.assertEqual('Hello there.\n', stdout.readline())
self.assertEqual('', stdout.readline())
self.assertEqual('This is on stderr.\n', stderr.readline())
self.assertEqual('', stderr.readline())
self.assertEquals('Hello there.\n', stdout.readline())
self.assertEquals('', stdout.readline())
self.assertEquals('This is on stderr.\n', stderr.readline())
self.assertEquals('', stderr.readline())
stdin.close()
stdout.close()
@ -152,103 +151,62 @@ class SSHClientTest (unittest.TestCase):
"""
verify that SSHClient accepts and tries multiple key files.
"""
threading.Thread(target=self._run).start()
host_key = paramiko.RSAKey.from_private_key_file(test_path('test_rsa.key'))
public_host_key = paramiko.RSAKey(data=host_key.asbytes())
host_key = paramiko.RSAKey.from_private_key_file('tests/test_rsa.key')
public_host_key = paramiko.RSAKey(data=str(host_key))
self.tc = paramiko.SSHClient()
self.tc.get_host_keys().add('[%s]:%d' % (self.addr, self.port), 'ssh-rsa', public_host_key)
self.tc.connect(self.addr, self.port, username='slowdive', key_filename=[test_path('test_rsa.key'), test_path('test_dss.key')])
self.tc.connect(self.addr, self.port, username='slowdive', key_filename=[ 'tests/test_rsa.key', 'tests/test_dss.key' ])
self.event.wait(1.0)
self.assertTrue(self.event.isSet())
self.assertTrue(self.ts.is_active())
self.assertEqual('slowdive', self.ts.get_username())
self.assertEqual(True, self.ts.is_authenticated())
self.assert_(self.event.isSet())
self.assert_(self.ts.is_active())
self.assertEquals('slowdive', self.ts.get_username())
self.assertEquals(True, self.ts.is_authenticated())
def test_4_auto_add_policy(self):
"""
verify that SSHClient's AutoAddPolicy works.
"""
threading.Thread(target=self._run).start()
host_key = paramiko.RSAKey.from_private_key_file(test_path('test_rsa.key'))
public_host_key = paramiko.RSAKey(data=host_key.asbytes())
host_key = paramiko.RSAKey.from_private_key_file('tests/test_rsa.key')
public_host_key = paramiko.RSAKey(data=str(host_key))
self.tc = paramiko.SSHClient()
self.tc.set_missing_host_key_policy(paramiko.AutoAddPolicy())
self.assertEqual(0, len(self.tc.get_host_keys()))
self.assertEquals(0, len(self.tc.get_host_keys()))
self.tc.connect(self.addr, self.port, username='slowdive', password='pygmalion')
self.event.wait(1.0)
self.assertTrue(self.event.isSet())
self.assertTrue(self.ts.is_active())
self.assertEqual('slowdive', self.ts.get_username())
self.assertEqual(True, self.ts.is_authenticated())
self.assertEqual(1, len(self.tc.get_host_keys()))
self.assertEqual(public_host_key, self.tc.get_host_keys()['[%s]:%d' % (self.addr, self.port)]['ssh-rsa'])
self.assert_(self.event.isSet())
self.assert_(self.ts.is_active())
self.assertEquals('slowdive', self.ts.get_username())
self.assertEquals(True, self.ts.is_authenticated())
self.assertEquals(1, len(self.tc.get_host_keys()))
self.assertEquals(public_host_key, self.tc.get_host_keys()['[%s]:%d' % (self.addr, self.port)]['ssh-rsa'])
def test_5_save_host_keys(self):
"""
verify that SSHClient correctly saves a known_hosts file.
"""
warnings.filterwarnings('ignore', 'tempnam.*')
host_key = paramiko.RSAKey.from_private_key_file(test_path('test_rsa.key'))
public_host_key = paramiko.RSAKey(data=host_key.asbytes())
fd, localname = mkstemp()
os.close(fd)
client = paramiko.SSHClient()
self.assertEquals(0, len(client.get_host_keys()))
host_id = '[%s]:%d' % (self.addr, self.port)
client.get_host_keys().add(host_id, 'ssh-rsa', public_host_key)
self.assertEquals(1, len(client.get_host_keys()))
self.assertEquals(public_host_key, client.get_host_keys()[host_id]['ssh-rsa'])
client.save_host_keys(localname)
with open(localname) as fd:
assert host_id in fd.read()
os.unlink(localname)
def test_6_cleanup(self):
def test_5_cleanup(self):
"""
verify that when an SSHClient is collected, its transport (and the
transport's packetizer) is closed.
"""
# Unclear why this is borked on Py3, but it is, and does not seem worth
# pursuing at the moment.
if not PY2:
return
threading.Thread(target=self._run).start()
host_key = paramiko.RSAKey.from_private_key_file(test_path('test_rsa.key'))
public_host_key = paramiko.RSAKey(data=host_key.asbytes())
host_key = paramiko.RSAKey.from_private_key_file('tests/test_rsa.key')
public_host_key = paramiko.RSAKey(data=str(host_key))
self.tc = paramiko.SSHClient()
self.tc.set_missing_host_key_policy(paramiko.AutoAddPolicy())
self.assertEqual(0, len(self.tc.get_host_keys()))
self.assertEquals(0, len(self.tc.get_host_keys()))
self.tc.connect(self.addr, self.port, username='slowdive', password='pygmalion')
self.event.wait(1.0)
self.assertTrue(self.event.isSet())
self.assertTrue(self.ts.is_active())
self.assert_(self.event.isSet())
self.assert_(self.ts.is_active())
p = weakref.ref(self.tc._transport.packetizer)
self.assertTrue(p() is not None)
self.tc.close()
self.assert_(p() is not None)
del self.tc
# hrm, sometimes p isn't cleared right away. why is that?
#st = time.time()
#while (time.time() - st < 5.0) and (p() is not None):
# time.sleep(0.1)
st = time.time()
while (time.time() - st < 5.0) and (p() is not None):
time.sleep(0.1)
self.assert_(p() is None)
# instead of dumbly waiting for the GC to collect, force a collection
# to see whether the SSHClient object is deallocated correctly
import gc
gc.collect()
self.assertTrue(p() is None)

View File

@ -1,5 +0,0 @@
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIKB6ty3yVyKEnfF/zprx0qwC76MsMlHY4HXCnqho2eKioAoGCCqGSM49
AwEHoUQDQgAElI9mbdlaS+T9nHxY/59lFnn80EEecZDBHq4gLpccY8Mge5ZTMiMD
ADRvOqQ5R98Sxst765CAqXmRtz8vwoD96g==
-----END EC PRIVATE KEY-----

View File

@ -1,8 +0,0 @@
-----BEGIN EC PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,EEB56BC745EDB2DE04FC3FE1F8DA387E
wdt7QTCa6ahTJLaEPH7NhHyBcxhzrzf93d4UwQOuAhkM6//jKD4lF9fErHBW0f3B
ExberCU3UxfEF3xX2thXiLw47JgeOCeQUlqRFx92p36k6YmfNGX6W8CsZ3d+XodF
Z+pb6m285CiSX+W95NenFMexXFsIpntiCvTifTKJ8os=
-----END EC PRIVATE KEY-----

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -22,7 +22,6 @@ Some unit tests for the BufferedFile abstraction.
import unittest
from paramiko.file import BufferedFile
from paramiko.common import linefeed_byte, crlf, cr_byte
class LoopbackFile (BufferedFile):
@ -32,7 +31,7 @@ class LoopbackFile (BufferedFile):
def __init__(self, mode='r', bufsize=-1):
BufferedFile.__init__(self)
self._set_mode(mode, bufsize)
self.buffer = bytes()
self.buffer = ''
def _read(self, size):
if len(self.buffer) == 0:
@ -53,8 +52,8 @@ class BufferedFileTest (unittest.TestCase):
def test_1_simple(self):
f = LoopbackFile('r')
try:
f.write(b'hi')
self.assertTrue(False, 'no exception on write to read-only file')
f.write('hi')
self.assert_(False, 'no exception on write to read-only file')
except:
pass
f.close()
@ -62,14 +61,14 @@ class BufferedFileTest (unittest.TestCase):
f = LoopbackFile('w')
try:
f.read(1)
self.assertTrue(False, 'no exception to read from write-only file')
self.assert_(False, 'no exception to read from write-only file')
except:
pass
f.close()
def test_2_readline(self):
f = LoopbackFile('r+U')
f.write(b'First line.\nSecond line.\r\nThird line.\nFinal line non-terminated.')
f.write('First line.\nSecond line.\r\nThird line.\nFinal line non-terminated.')
self.assertEqual(f.readline(), 'First line.\n')
# universal newline mode should convert this linefeed:
self.assertEqual(f.readline(), 'Second line.\n')
@ -81,31 +80,31 @@ class BufferedFileTest (unittest.TestCase):
f.close()
try:
f.readline()
self.assertTrue(False, 'no exception on readline of closed file')
self.assert_(False, 'no exception on readline of closed file')
except IOError:
pass
self.assertTrue(linefeed_byte in f.newlines)
self.assertTrue(crlf in f.newlines)
self.assertTrue(cr_byte not in f.newlines)
self.assert_('\n' in f.newlines)
self.assert_('\r\n' in f.newlines)
self.assert_('\r' not in f.newlines)
def test_3_lf(self):
"""
try to trick the linefeed detector.
"""
f = LoopbackFile('r+U')
f.write(b'First line.\r')
f.write('First line.\r')
self.assertEqual(f.readline(), 'First line.\n')
f.write(b'\nSecond.\r\n')
f.write('\nSecond.\r\n')
self.assertEqual(f.readline(), 'Second.\n')
f.close()
self.assertEqual(f.newlines, crlf)
self.assertEqual(f.newlines, '\r\n')
def test_4_write(self):
"""
verify that write buffering is on.
"""
f = LoopbackFile('r+', 1)
f.write(b'Complete line.\nIncomplete line.')
f.write('Complete line.\nIncomplete line.')
self.assertEqual(f.readline(), 'Complete line.\n')
self.assertEqual(f.readline(), '')
f.write('..\n')
@ -118,12 +117,12 @@ class BufferedFileTest (unittest.TestCase):
"""
f = LoopbackFile('r+', 512)
f.write('Not\nquite\n512 bytes.\n')
self.assertEqual(f.read(1), b'')
self.assertEqual(f.read(1), '')
f.flush()
self.assertEqual(f.read(5), b'Not\nq')
self.assertEqual(f.read(10), b'uite\n512 b')
self.assertEqual(f.read(9), b'ytes.\n')
self.assertEqual(f.read(3), b'')
self.assertEqual(f.read(5), 'Not\nq')
self.assertEqual(f.read(10), 'uite\n512 b')
self.assertEqual(f.read(9), 'ytes.\n')
self.assertEqual(f.read(3), '')
f.close()
def test_6_buffering(self):
@ -131,12 +130,12 @@ class BufferedFileTest (unittest.TestCase):
verify that flushing happens automatically on buffer crossing.
"""
f = LoopbackFile('r+', 16)
f.write(b'Too small.')
self.assertEqual(f.read(4), b'')
f.write(b' ')
self.assertEqual(f.read(4), b'')
f.write(b'Enough.')
self.assertEqual(f.read(20), b'Too small. Enough.')
f.write('Too small.')
self.assertEqual(f.read(4), '')
f.write(' ')
self.assertEqual(f.read(4), '')
f.write('Enough.')
self.assertEqual(f.read(20), 'Too small. Enough.')
f.close()
def test_7_read_all(self):
@ -144,14 +143,9 @@ class BufferedFileTest (unittest.TestCase):
verify that read(-1) returns everything left in the file.
"""
f = LoopbackFile('r+', 16)
f.write(b'The first thing you need to do is open your eyes. ')
f.write(b'Then, you need to close them again.\n')
f.write('The first thing you need to do is open your eyes. ')
f.write('Then, you need to close them again.\n')
s = f.read(-1)
self.assertEqual(s, b'The first thing you need to do is open your eyes. Then, you ' +
b'need to close them again.\n')
self.assertEqual(s, 'The first thing you need to do is open your eyes. Then, you ' +
'need to close them again.\n')
f.close()
if __name__ == '__main__':
from unittest import main
main()

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -20,11 +20,11 @@
Some unit tests for HostKeys.
"""
import base64
from binascii import hexlify
import os
import unittest
import paramiko
from paramiko.py3compat import decodebytes
test_hosts_file = """\
@ -36,12 +36,12 @@ BGQ3GQ/Fc7SX6gkpXkwcZryoi4kNFhHu5LvHcZPdxXV1D+uTMfGS1eyd2Yz/DoNWXNAl8TI0cAsW\
5ymME3bQ4J/k1IKxCtz/bAlAqFgKoc+EolMziDYqWIATtW0rYTJvzGAzTmMj80/QpsFH+Pc2M=
"""
keyblob = b"""\
keyblob = """\
AAAAB3NzaC1yc2EAAAABIwAAAIEA8bP1ZA7DCZDB9J0s50l31MBGQ3GQ/Fc7SX6gkpXkwcZryoi4k\
NFhHu5LvHcZPdxXV1D+uTMfGS1eyd2Yz/DoNWXNAl8TI0cAsW5ymME3bQ4J/k1IKxCtz/bAlAqFgK\
oc+EolMziDYqWIATtW0rYTJvzGAzTmMj80/QpsFH+Pc2M="""
keyblob_dss = b"""\
keyblob_dss = """\
AAAAB3NzaC1kc3MAAACBAOeBpgNnfRzr/twmAQRu2XwWAp3CFtrVnug6s6fgwj/oLjYbVtjAy6pl/\
h0EKCWx2rf1IetyNsTxWrniA9I6HeDj65X1FyDkg6g8tvCnaNB8Xp/UUhuzHuGsMIipRxBxw9LF60\
8EqZcj1E3ytktoW5B5OcjrkEoz3xG7C+rpIjYvAAAAFQDwz4UnmsGiSNu5iqjn3uTzwUpshwAAAIE\
@ -55,50 +55,51 @@ Ngw3qIch/WgRmMHy4kBq1SsXMjQCte1So6HBMvBPIW5SiMTmjCfZZiw4AYHK+B/JaOwaG9yRg2Ejg\
class HostKeysTest (unittest.TestCase):
def setUp(self):
with open('hostfile.temp', 'w') as f:
f.write(test_hosts_file)
f = open('hostfile.temp', 'w')
f.write(test_hosts_file)
f.close()
def tearDown(self):
os.unlink('hostfile.temp')
def test_1_load(self):
hostdict = paramiko.HostKeys('hostfile.temp')
self.assertEqual(2, len(hostdict))
self.assertEqual(1, len(list(hostdict.values())[0]))
self.assertEqual(1, len(list(hostdict.values())[1]))
self.assertEquals(2, len(hostdict))
self.assertEquals(1, len(hostdict.values()[0]))
self.assertEquals(1, len(hostdict.values()[1]))
fp = hexlify(hostdict['secure.example.com']['ssh-rsa'].get_fingerprint()).upper()
self.assertEqual(b'E6684DB30E109B67B70FF1DC5C7F1363', fp)
self.assertEquals('E6684DB30E109B67B70FF1DC5C7F1363', fp)
def test_2_add(self):
hostdict = paramiko.HostKeys('hostfile.temp')
hh = '|1|BMsIC6cUIP2zBuXR3t2LRcJYjzM=|hpkJMysjTk/+zzUUzxQEa2ieq6c='
key = paramiko.RSAKey(data=decodebytes(keyblob))
key = paramiko.RSAKey(data=base64.decodestring(keyblob))
hostdict.add(hh, 'ssh-rsa', key)
self.assertEqual(3, len(list(hostdict)))
self.assertEquals(3, len(hostdict))
x = hostdict['foo.example.com']
fp = hexlify(x['ssh-rsa'].get_fingerprint()).upper()
self.assertEqual(b'7EC91BB336CB6D810B124B1353C32396', fp)
self.assertTrue(hostdict.check('foo.example.com', key))
self.assertEquals('7EC91BB336CB6D810B124B1353C32396', fp)
self.assert_(hostdict.check('foo.example.com', key))
def test_3_dict(self):
hostdict = paramiko.HostKeys('hostfile.temp')
self.assertTrue('secure.example.com' in hostdict)
self.assertTrue('not.example.com' not in hostdict)
self.assertTrue('secure.example.com' in hostdict)
self.assertTrue('not.example.com' not in hostdict)
self.assert_('secure.example.com' in hostdict)
self.assert_('not.example.com' not in hostdict)
self.assert_(hostdict.has_key('secure.example.com'))
self.assert_(not hostdict.has_key('not.example.com'))
x = hostdict.get('secure.example.com', None)
self.assertTrue(x is not None)
self.assert_(x is not None)
fp = hexlify(x['ssh-rsa'].get_fingerprint()).upper()
self.assertEqual(b'E6684DB30E109B67B70FF1DC5C7F1363', fp)
self.assertEquals('E6684DB30E109B67B70FF1DC5C7F1363', fp)
i = 0
for key in hostdict:
i += 1
self.assertEqual(2, i)
self.assertEquals(2, i)
def test_4_dict_set(self):
hostdict = paramiko.HostKeys('hostfile.temp')
key = paramiko.RSAKey(data=decodebytes(keyblob))
key_dss = paramiko.DSSKey(data=decodebytes(keyblob_dss))
key = paramiko.RSAKey(data=base64.decodestring(keyblob))
key_dss = paramiko.DSSKey(data=base64.decodestring(keyblob_dss))
hostdict['secure.example.com'] = {
'ssh-rsa': key,
'ssh-dss': key_dss
@ -106,11 +107,11 @@ class HostKeysTest (unittest.TestCase):
hostdict['fake.example.com'] = {}
hostdict['fake.example.com']['ssh-rsa'] = key
self.assertEqual(3, len(hostdict))
self.assertEqual(2, len(list(hostdict.values())[0]))
self.assertEqual(1, len(list(hostdict.values())[1]))
self.assertEqual(1, len(list(hostdict.values())[2]))
self.assertEquals(3, len(hostdict))
self.assertEquals(2, len(hostdict.values()[0]))
self.assertEquals(1, len(hostdict.values()[1]))
self.assertEquals(1, len(hostdict.values()[2]))
fp = hexlify(hostdict['secure.example.com']['ssh-rsa'].get_fingerprint()).upper()
self.assertEqual(b'7EC91BB336CB6D810B124B1353C32396', fp)
self.assertEquals('7EC91BB336CB6D810B124B1353C32396', fp)
fp = hexlify(hostdict['secure.example.com']['ssh-dss'].get_fingerprint()).upper()
self.assertEqual(b'4478F0B9A23CC5182009FF755BC1D26C', fp)
self.assertEquals('4478F0B9A23CC5182009FF755BC1D26C', fp)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,40 +21,34 @@ Some unit tests for the key exchange protocols.
"""
from binascii import hexlify
import os
import unittest
import paramiko.util
from paramiko.kex_group1 import KexGroup1
from paramiko.kex_gex import KexGex
from paramiko import Message
from paramiko.common import byte_chr
def dummy_urandom(n):
return byte_chr(0xcc) * n
class FakeRng (object):
def read(self, n):
return chr(0xcc) * n
class FakeKey (object):
def __str__(self):
return 'fake-key'
def asbytes(self):
return b'fake-key'
def sign_ssh_data(self, H):
return b'fake-sig'
def sign_ssh_data(self, rng, H):
return 'fake-sig'
class FakeModulusPack (object):
P = 0xFFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF
P = 0xFFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFFL
G = 2
def get_modulus(self, min, ask, max):
return self.G, self.P
class FakeTransport(object):
class FakeTransport (object):
rng = FakeRng()
local_version = 'SSH-2.0-paramiko_1.0'
remote_version = 'SSH-2.0-lame'
local_kex_init = 'local-kex-init'
@ -62,49 +56,41 @@ class FakeTransport(object):
def _send_message(self, m):
self._message = m
def _expect_packet(self, *t):
self._expect = t
def _set_K_H(self, K, H):
self._K = K
self._H = H
def _verify_key(self, host_key, sig):
self._verify = (host_key, sig)
def _activate_outbound(self):
self._activated = True
def _log(self, level, s):
pass
def get_server_key(self):
return FakeKey()
def _get_modulus_pack(self):
return FakeModulusPack()
class KexTest (unittest.TestCase):
K = 14730343317708716439807310032871972459448364195094179797249681733965528989482751523943515690110179031004049109375612685505881911274101441415545039654102474376472240501616988799699744135291070488314748284283496055223852115360852283821334858541043710301057312858051901453919067023103730011648890038847384890504
K = 14730343317708716439807310032871972459448364195094179797249681733965528989482751523943515690110179031004049109375612685505881911274101441415545039654102474376472240501616988799699744135291070488314748284283496055223852115360852283821334858541043710301057312858051901453919067023103730011648890038847384890504L
def setUp(self):
self._original_urandom = os.urandom
os.urandom = dummy_urandom
pass
def tearDown(self):
os.urandom = self._original_urandom
pass
def test_1_group1_client(self):
transport = FakeTransport()
transport.server_mode = False
kex = KexGroup1(transport)
kex.start_kex()
x = b'1E000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D4'
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertEqual((paramiko.kex_group1._MSG_KEXDH_REPLY,), transport._expect)
x = '1E000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D4'
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assertEquals((paramiko.kex_group1._MSG_KEXDH_REPLY,), transport._expect)
# fake "reply"
msg = Message()
@ -113,47 +99,47 @@ class KexTest (unittest.TestCase):
msg.add_string('fake-sig')
msg.rewind()
kex.parse_next(paramiko.kex_group1._MSG_KEXDH_REPLY, msg)
H = b'03079780F3D3AD0B3C6DB30C8D21685F367A86D2'
self.assertEqual(self.K, transport._K)
self.assertEqual(H, hexlify(transport._H).upper())
self.assertEqual((b'fake-host-key', b'fake-sig'), transport._verify)
self.assertTrue(transport._activated)
H = '03079780F3D3AD0B3C6DB30C8D21685F367A86D2'
self.assertEquals(self.K, transport._K)
self.assertEquals(H, hexlify(transport._H).upper())
self.assertEquals(('fake-host-key', 'fake-sig'), transport._verify)
self.assert_(transport._activated)
def test_2_group1_server(self):
transport = FakeTransport()
transport.server_mode = True
kex = KexGroup1(transport)
kex.start_kex()
self.assertEqual((paramiko.kex_group1._MSG_KEXDH_INIT,), transport._expect)
self.assertEquals((paramiko.kex_group1._MSG_KEXDH_INIT,), transport._expect)
msg = Message()
msg.add_mpint(69)
msg.rewind()
kex.parse_next(paramiko.kex_group1._MSG_KEXDH_INIT, msg)
H = b'B16BF34DD10945EDE84E9C1EF24A14BFDC843389'
x = b'1F0000000866616B652D6B6579000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D40000000866616B652D736967'
self.assertEqual(self.K, transport._K)
self.assertEqual(H, hexlify(transport._H).upper())
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertTrue(transport._activated)
H = 'B16BF34DD10945EDE84E9C1EF24A14BFDC843389'
x = '1F0000000866616B652D6B6579000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D40000000866616B652D736967'
self.assertEquals(self.K, transport._K)
self.assertEquals(H, hexlify(transport._H).upper())
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assert_(transport._activated)
def test_3_gex_client(self):
transport = FakeTransport()
transport.server_mode = False
kex = KexGex(transport)
kex.start_kex()
x = b'22000004000000080000002000'
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_GROUP,), transport._expect)
x = '22000004000000080000002000'
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_GROUP,), transport._expect)
msg = Message()
msg.add_mpint(FakeModulusPack.P)
msg.add_mpint(FakeModulusPack.G)
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_GROUP, msg)
x = b'20000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D4'
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_REPLY,), transport._expect)
x = '20000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D4'
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_REPLY,), transport._expect)
msg = Message()
msg.add_string('fake-host-key')
@ -161,29 +147,29 @@ class KexTest (unittest.TestCase):
msg.add_string('fake-sig')
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_REPLY, msg)
H = b'A265563F2FA87F1A89BF007EE90D58BE2E4A4BD0'
self.assertEqual(self.K, transport._K)
self.assertEqual(H, hexlify(transport._H).upper())
self.assertEqual((b'fake-host-key', b'fake-sig'), transport._verify)
self.assertTrue(transport._activated)
H = 'A265563F2FA87F1A89BF007EE90D58BE2E4A4BD0'
self.assertEquals(self.K, transport._K)
self.assertEquals(H, hexlify(transport._H).upper())
self.assertEquals(('fake-host-key', 'fake-sig'), transport._verify)
self.assert_(transport._activated)
def test_4_gex_old_client(self):
transport = FakeTransport()
transport.server_mode = False
kex = KexGex(transport)
kex.start_kex(_test_old_style=True)
x = b'1E00000800'
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_GROUP,), transport._expect)
x = '1E00000800'
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_GROUP,), transport._expect)
msg = Message()
msg.add_mpint(FakeModulusPack.P)
msg.add_mpint(FakeModulusPack.G)
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_GROUP, msg)
x = b'20000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D4'
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_REPLY,), transport._expect)
x = '20000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D4'
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_REPLY,), transport._expect)
msg = Message()
msg.add_string('fake-host-key')
@ -191,18 +177,18 @@ class KexTest (unittest.TestCase):
msg.add_string('fake-sig')
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_REPLY, msg)
H = b'807F87B269EF7AC5EC7E75676808776A27D5864C'
self.assertEqual(self.K, transport._K)
self.assertEqual(H, hexlify(transport._H).upper())
self.assertEqual((b'fake-host-key', b'fake-sig'), transport._verify)
self.assertTrue(transport._activated)
H = '807F87B269EF7AC5EC7E75676808776A27D5864C'
self.assertEquals(self.K, transport._K)
self.assertEquals(H, hexlify(transport._H).upper())
self.assertEquals(('fake-host-key', 'fake-sig'), transport._verify)
self.assert_(transport._activated)
def test_5_gex_server(self):
transport = FakeTransport()
transport.server_mode = True
kex = KexGex(transport)
kex.start_kex()
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST, paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST_OLD), transport._expect)
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST, paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST_OLD), transport._expect)
msg = Message()
msg.add_int(1024)
@ -210,45 +196,45 @@ class KexTest (unittest.TestCase):
msg.add_int(4096)
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST, msg)
x = b'1F0000008100FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF0000000102'
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_INIT,), transport._expect)
x = '1F0000008100FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF0000000102'
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_INIT,), transport._expect)
msg = Message()
msg.add_mpint(12345)
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_INIT, msg)
K = 67592995013596137876033460028393339951879041140378510871612128162185209509220726296697886624612526735888348020498716482757677848959420073720160491114319163078862905400020959196386947926388406687288901564192071077389283980347784184487280885335302632305026248574716290537036069329724382811853044654824945750581
H = b'CE754197C21BF3452863B4F44D0B3951F12516EF'
x = b'210000000866616B652D6B6579000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D40000000866616B652D736967'
self.assertEqual(K, transport._K)
self.assertEqual(H, hexlify(transport._H).upper())
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertTrue(transport._activated)
K = 67592995013596137876033460028393339951879041140378510871612128162185209509220726296697886624612526735888348020498716482757677848959420073720160491114319163078862905400020959196386947926388406687288901564192071077389283980347784184487280885335302632305026248574716290537036069329724382811853044654824945750581L
H = 'CE754197C21BF3452863B4F44D0B3951F12516EF'
x = '210000000866616B652D6B6579000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D40000000866616B652D736967'
self.assertEquals(K, transport._K)
self.assertEquals(H, hexlify(transport._H).upper())
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assert_(transport._activated)
def test_6_gex_server_with_old_client(self):
transport = FakeTransport()
transport.server_mode = True
kex = KexGex(transport)
kex.start_kex()
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST, paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST_OLD), transport._expect)
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST, paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST_OLD), transport._expect)
msg = Message()
msg.add_int(2048)
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_REQUEST_OLD, msg)
x = b'1F0000008100FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF0000000102'
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertEqual((paramiko.kex_gex._MSG_KEXDH_GEX_INIT,), transport._expect)
x = '1F0000008100FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF0000000102'
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assertEquals((paramiko.kex_gex._MSG_KEXDH_GEX_INIT,), transport._expect)
msg = Message()
msg.add_mpint(12345)
msg.rewind()
kex.parse_next(paramiko.kex_gex._MSG_KEXDH_GEX_INIT, msg)
K = 67592995013596137876033460028393339951879041140378510871612128162185209509220726296697886624612526735888348020498716482757677848959420073720160491114319163078862905400020959196386947926388406687288901564192071077389283980347784184487280885335302632305026248574716290537036069329724382811853044654824945750581
H = b'B41A06B2E59043CEFC1AE16EC31F1E2D12EC455B'
x = b'210000000866616B652D6B6579000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D40000000866616B652D736967'
self.assertEqual(K, transport._K)
self.assertEqual(H, hexlify(transport._H).upper())
self.assertEqual(x, hexlify(transport._message.asbytes()).upper())
self.assertTrue(transport._activated)
K = 67592995013596137876033460028393339951879041140378510871612128162185209509220726296697886624612526735888348020498716482757677848959420073720160491114319163078862905400020959196386947926388406687288901564192071077389283980347784184487280885335302632305026248574716290537036069329724382811853044654824945750581L
H = 'B41A06B2E59043CEFC1AE16EC31F1E2D12EC455B'
x = '210000000866616B652D6B6579000000807E2DDB1743F3487D6545F04F1C8476092FB912B013626AB5BCEB764257D88BBA64243B9F348DF7B41B8C814A995E00299913503456983FFB9178D3CD79EB6D55522418A8ABF65375872E55938AB99A84A0B5FC8A1ECC66A7C3766E7E0F80B7CE2C9225FC2DD683F4764244B72963BBB383F529DCF0C5D17740B8A2ADBE9208D40000000866616B652D736967'
self.assertEquals(K, transport._K)
self.assertEquals(H, hexlify(transport._H).upper())
self.assertEquals(x, hexlify(str(transport._message)).upper())
self.assert_(transport._activated)

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -22,15 +22,14 @@ Some unit tests for ssh protocol message blocks.
import unittest
from paramiko.message import Message
from paramiko.common import byte_chr, zero_byte
class MessageTest (unittest.TestCase):
__a = b'\x00\x00\x00\x17\x07\x60\xe0\x90\x00\x00\x00\x01\x71\x00\x00\x00\x05\x68\x65\x6c\x6c\x6f\x00\x00\x03\xe8' + b'x' * 1000
__b = b'\x01\x00\xf3\x00\x3f\x00\x00\x00\x10\x68\x75\x65\x79\x2c\x64\x65\x77\x65\x79\x2c\x6c\x6f\x75\x69\x65'
__c = b'\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\xf5\xe4\xd3\xc2\xb1\x09\x00\x00\x00\x01\x11\x00\x00\x00\x07\x00\xf5\xe4\xd3\xc2\xb1\x09\x00\x00\x00\x06\x9a\x1b\x2c\x3d\x4e\xf7'
__d = b'\x00\x00\x00\x05\xff\x00\x00\x00\x05\x11\x22\x33\x44\x55\xff\x00\x00\x00\x0a\x00\xf0\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x03\x63\x61\x74\x00\x00\x00\x03\x61\x2c\x62'
__a = '\x00\x00\x00\x17\x07\x60\xe0\x90\x00\x00\x00\x01q\x00\x00\x00\x05hello\x00\x00\x03\xe8' + ('x' * 1000)
__b = '\x01\x00\xf3\x00\x3f\x00\x00\x00\x10huey,dewey,louie'
__c = '\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\xf5\xe4\xd3\xc2\xb1\x09\x00\x00\x00\x01\x11\x00\x00\x00\x07\x00\xf5\xe4\xd3\xc2\xb1\x09\x00\x00\x00\x06\x9a\x1b\x2c\x3d\x4e\xf7'
__d = '\x00\x00\x00\x05\x00\x00\x00\x05\x11\x22\x33\x44\x55\x01\x00\x00\x00\x03cat\x00\x00\x00\x03a,b'
def test_1_encode(self):
msg = Message()
@ -39,65 +38,63 @@ class MessageTest (unittest.TestCase):
msg.add_string('q')
msg.add_string('hello')
msg.add_string('x' * 1000)
self.assertEqual(msg.asbytes(), self.__a)
self.assertEquals(str(msg), self.__a)
msg = Message()
msg.add_boolean(True)
msg.add_boolean(False)
msg.add_byte(byte_chr(0xf3))
msg.add_bytes(zero_byte + byte_chr(0x3f))
msg.add_byte('\xf3')
msg.add_bytes('\x00\x3f')
msg.add_list(['huey', 'dewey', 'louie'])
self.assertEqual(msg.asbytes(), self.__b)
self.assertEquals(str(msg), self.__b)
msg = Message()
msg.add_int64(5)
msg.add_int64(0xf5e4d3c2b109)
msg.add_int64(0xf5e4d3c2b109L)
msg.add_mpint(17)
msg.add_mpint(0xf5e4d3c2b109)
msg.add_mpint(-0x65e4d3c2b109)
self.assertEqual(msg.asbytes(), self.__c)
msg.add_mpint(0xf5e4d3c2b109L)
msg.add_mpint(-0x65e4d3c2b109L)
self.assertEquals(str(msg), self.__c)
def test_2_decode(self):
msg = Message(self.__a)
self.assertEqual(msg.get_int(), 23)
self.assertEqual(msg.get_int(), 123789456)
self.assertEqual(msg.get_text(), 'q')
self.assertEqual(msg.get_text(), 'hello')
self.assertEqual(msg.get_text(), 'x' * 1000)
self.assertEquals(msg.get_int(), 23)
self.assertEquals(msg.get_int(), 123789456)
self.assertEquals(msg.get_string(), 'q')
self.assertEquals(msg.get_string(), 'hello')
self.assertEquals(msg.get_string(), 'x' * 1000)
msg = Message(self.__b)
self.assertEqual(msg.get_boolean(), True)
self.assertEqual(msg.get_boolean(), False)
self.assertEqual(msg.get_byte(), byte_chr(0xf3))
self.assertEqual(msg.get_bytes(2), zero_byte + byte_chr(0x3f))
self.assertEqual(msg.get_list(), ['huey', 'dewey', 'louie'])
self.assertEquals(msg.get_boolean(), True)
self.assertEquals(msg.get_boolean(), False)
self.assertEquals(msg.get_byte(), '\xf3')
self.assertEquals(msg.get_bytes(2), '\x00\x3f')
self.assertEquals(msg.get_list(), ['huey', 'dewey', 'louie'])
msg = Message(self.__c)
self.assertEqual(msg.get_int64(), 5)
self.assertEqual(msg.get_int64(), 0xf5e4d3c2b109)
self.assertEqual(msg.get_mpint(), 17)
self.assertEqual(msg.get_mpint(), 0xf5e4d3c2b109)
self.assertEqual(msg.get_mpint(), -0x65e4d3c2b109)
self.assertEquals(msg.get_int64(), 5)
self.assertEquals(msg.get_int64(), 0xf5e4d3c2b109L)
self.assertEquals(msg.get_mpint(), 17)
self.assertEquals(msg.get_mpint(), 0xf5e4d3c2b109L)
self.assertEquals(msg.get_mpint(), -0x65e4d3c2b109L)
def test_3_add(self):
msg = Message()
msg.add(5)
msg.add(0x1122334455)
msg.add(0xf00000000000000000)
msg.add(0x1122334455L)
msg.add(True)
msg.add('cat')
msg.add(['a', 'b'])
self.assertEqual(msg.asbytes(), self.__d)
self.assertEquals(str(msg), self.__d)
def test_4_misc(self):
msg = Message(self.__d)
self.assertEqual(msg.get_int(), 5)
self.assertEqual(msg.get_int(), 0x1122334455)
self.assertEqual(msg.get_int(), 0xf00000000000000000)
self.assertEqual(msg.get_so_far(), self.__d[:29])
self.assertEqual(msg.get_remainder(), self.__d[29:])
self.assertEquals(msg.get_int(), 5)
self.assertEquals(msg.get_mpint(), 0x1122334455L)
self.assertEquals(msg.get_so_far(), self.__d[:13])
self.assertEquals(msg.get_remainder(), self.__d[13:])
msg.rewind()
self.assertEqual(msg.get_int(), 5)
self.assertEqual(msg.get_so_far(), self.__d[:4])
self.assertEqual(msg.get_remainder(), self.__d[4:])
self.assertEquals(msg.get_int(), 5)
self.assertEquals(msg.get_so_far(), self.__d[:4])
self.assertEquals(msg.get_remainder(), self.__d[4:])

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -21,56 +21,50 @@ Some unit tests for the ssh2 protocol in Transport.
"""
import unittest
from hashlib import sha1
from tests.loop import LoopSocket
from loop import LoopSocket
from Crypto.Cipher import AES
from Crypto.Hash import SHA, HMAC
from paramiko import Message, Packetizer, util
from paramiko.common import byte_chr, zero_byte
x55 = byte_chr(0x55)
x1f = byte_chr(0x1f)
class PacketizerTest (unittest.TestCase):
def test_1_write(self):
def test_1_write (self):
rsock = LoopSocket()
wsock = LoopSocket()
rsock.link(wsock)
p = Packetizer(wsock)
p.set_log(util.get_logger('paramiko.transport'))
p.set_hexdump(True)
cipher = AES.new(zero_byte * 16, AES.MODE_CBC, x55 * 16)
p.set_outbound_cipher(cipher, 16, sha1, 12, x1f * 20)
cipher = AES.new('\x00' * 16, AES.MODE_CBC, '\x55' * 16)
p.set_outbound_cipher(cipher, 16, SHA, 12, '\x1f' * 20)
# message has to be at least 16 bytes long, so we'll have at least one
# block of data encrypted that contains zero random padding bytes
m = Message()
m.add_byte(byte_chr(100))
m.add_byte(chr(100))
m.add_int(100)
m.add_int(1)
m.add_int(900)
p.send_message(m)
data = rsock.recv(100)
# 32 + 12 bytes of MAC = 44
self.assertEqual(44, len(data))
self.assertEqual(b'\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0', data[:16])
def test_2_read(self):
self.assertEquals(44, len(data))
self.assertEquals('\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0', data[:16])
def test_2_read (self):
rsock = LoopSocket()
wsock = LoopSocket()
rsock.link(wsock)
p = Packetizer(rsock)
p.set_log(util.get_logger('paramiko.transport'))
p.set_hexdump(True)
cipher = AES.new(zero_byte * 16, AES.MODE_CBC, x55 * 16)
p.set_inbound_cipher(cipher, 16, sha1, 12, x1f * 20)
wsock.send(b'\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0\x90\xd2\x16\x56\x0d\x71\x73\x61\x38\x7c\x4c\x3d\xfb\x97\x7d\xe2\x6e\x03\xb1\xa0\xc2\x1c\xd6\x41\x41\x4c\xb4\x59')
cipher = AES.new('\x00' * 16, AES.MODE_CBC, '\x55' * 16)
p.set_inbound_cipher(cipher, 16, SHA, 12, '\x1f' * 20)
wsock.send('C\x91\x97\xbd[P\xac%\x87\xc2\xc4k\xc7\xe98\xc0' + \
'\x90\xd2\x16V\rqsa8|L=\xfb\x97}\xe2n\x03\xb1\xa0\xc2\x1c\xd6AAL\xb4Y')
cmd, m = p.read_message()
self.assertEqual(100, cmd)
self.assertEqual(100, m.get_int())
self.assertEqual(1, m.get_int())
self.assertEqual(900, m.get_int())
self.assertEquals(100, cmd)
self.assertEquals(100, m.get_int())
self.assertEquals(1, m.get_int())
self.assertEquals(900, m.get_int())

View File

@ -7,7 +7,7 @@
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
@ -20,23 +20,17 @@
Some unit tests for public/private key objects.
"""
from binascii import hexlify, unhexlify
import StringIO
import unittest
from binascii import hexlify
from hashlib import md5
from paramiko import RSAKey, DSSKey, ECDSAKey, Message, util
from paramiko.py3compat import StringIO, byte_chr, b, bytes
from tests.util import test_path
from paramiko import RSAKey, DSSKey, Message, util
from paramiko.common import rng
# from openssh's ssh-keygen
PUB_RSA = 'ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEA049W6geFpmsljTwfvI1UmKWWJPNFI74+vNKTk4dmzkQY2yAMs6FhlvhlI8ysU4oj71ZsRYMecHbBbxdN79+JRFVYTKaLqjwGENeTd+yv4q+V2PvZv3fLnzApI3l7EJCqhWwJUHJ1jAkZzqDx0tyOL4uoZpww3nmE0kb3y21tH4c='
PUB_DSS = 'ssh-dss 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'
PUB_ECDSA = 'ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJSPZm3ZWkvk/Zx8WP+fZRZ5/NBBHnGQwR6uIC6XHGPDIHuWUzIjAwA0bzqkOUffEsbLe+uQgKl5kbc/L8KA/eo='
FINGER_RSA = '1024 60:73:38:44:cb:51:86:65:7f:de:da:a2:2b:5a:57:d5'
FINGER_DSS = '1024 44:78:f0:b9:a2:3c:c5:18:20:09:ff:75:5b:c1:d2:6c'
FINGER_ECDSA = '256 25:19:eb:55:e6:a1:47:ff:4f:38:d2:75:6f:a5:d5:60'
SIGNED_RSA = '20:d7:8a:31:21:cb:f7:92:12:f2:a4:89:37:f5:78:af:e6:16:b6:25:b9:97:3d:a2:cd:5f:ca:20:21:73:4c:ad:34:73:8f:20:77:28:e2:94:15:08:d8:91:40:7a:85:83:bf:18:37:95:dc:54:1a:9b:88:29:6c:73:ca:38:b4:04:f1:56:b9:f2:42:9d:52:1b:29:29:b4:4f:fd:c9:2d:af:47:d2:40:76:30:f3:63:45:0c:d9:1d:43:86:0f:1c:70:e2:93:12:34:f3:ac:c5:0a:2f:14:50:66:59:f1:88:ee:c1:4a:e9:d1:9c:4e:46:f0:0e:47:6f:38:74:f1:44:a8'
RSA_PRIVATE_OUT = """\
@ -72,16 +66,6 @@ QPSch9pT9XHqn+1rZ4bK+QGA
-----END DSA PRIVATE KEY-----
"""
ECDSA_PRIVATE_OUT = """\
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIKB6ty3yVyKEnfF/zprx0qwC76MsMlHY4HXCnqho2eKioAoGCCqGSM49
AwEHoUQDQgAElI9mbdlaS+T9nHxY/59lFnn80EEecZDBHq4gLpccY8Mge5ZTMiMD
ADRvOqQ5R98Sxst765CAqXmRtz8vwoD96g==
-----END EC PRIVATE KEY-----
"""
x1234 = b'\x01\x02\x03\x04'
class KeyTest (unittest.TestCase):
@ -92,164 +76,115 @@ class KeyTest (unittest.TestCase):
pass
def test_1_generate_key_bytes(self):
key = util.generate_key_bytes(md5, x1234, 'happy birthday', 30)
exp = b'\x61\xE1\xF2\x72\xF4\xC1\xC4\x56\x15\x86\xBD\x32\x24\x98\xC0\xE9\x24\x67\x27\x80\xF4\x7B\xB3\x7D\xDA\x7D\x54\x01\x9E\x64'
self.assertEqual(exp, key)
from Crypto.Hash import MD5
key = util.generate_key_bytes(MD5, '\x01\x02\x03\x04', 'happy birthday', 30)
exp = unhexlify('61E1F272F4C1C4561586BD322498C0E924672780F47BB37DDA7D54019E64')
self.assertEquals(exp, key)
def test_2_load_rsa(self):
key = RSAKey.from_private_key_file(test_path('test_rsa.key'))
self.assertEqual('ssh-rsa', key.get_name())
exp_rsa = b(FINGER_RSA.split()[1].replace(':', ''))
key = RSAKey.from_private_key_file('tests/test_rsa.key')
self.assertEquals('ssh-rsa', key.get_name())
exp_rsa = FINGER_RSA.split()[1].replace(':', '')
my_rsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_rsa, my_rsa)
self.assertEqual(PUB_RSA.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
self.assertEquals(exp_rsa, my_rsa)
self.assertEquals(PUB_RSA.split()[1], key.get_base64())
self.assertEquals(1024, key.get_bits())
s = StringIO()
s = StringIO.StringIO()
key.write_private_key(s)
self.assertEqual(RSA_PRIVATE_OUT, s.getvalue())
self.assertEquals(RSA_PRIVATE_OUT, s.getvalue())
s.seek(0)
key2 = RSAKey.from_private_key(s)
self.assertEqual(key, key2)
self.assertEquals(key, key2)
def test_3_load_rsa_password(self):
key = RSAKey.from_private_key_file(test_path('test_rsa_password.key'), 'television')
self.assertEqual('ssh-rsa', key.get_name())
exp_rsa = b(FINGER_RSA.split()[1].replace(':', ''))
key = RSAKey.from_private_key_file('tests/test_rsa_password.key', 'television')
self.assertEquals('ssh-rsa', key.get_name())
exp_rsa = FINGER_RSA.split()[1].replace(':', '')
my_rsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_rsa, my_rsa)
self.assertEqual(PUB_RSA.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
self.assertEquals(exp_rsa, my_rsa)
self.assertEquals(PUB_RSA.split()[1], key.get_base64())
self.assertEquals(1024, key.get_bits())
def test_4_load_dss(self):
key = DSSKey.from_private_key_file(test_path('test_dss.key'))
self.assertEqual('ssh-dss', key.get_name())
exp_dss = b(FINGER_DSS.split()[1].replace(':', ''))
key = DSSKey.from_private_key_file('tests/test_dss.key')
self.assertEquals('ssh-dss', key.get_name())
exp_dss = FINGER_DSS.split()[1].replace(':', '')
my_dss = hexlify(key.get_fingerprint())
self.assertEqual(exp_dss, my_dss)
self.assertEqual(PUB_DSS.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
self.assertEquals(exp_dss, my_dss)
self.assertEquals(PUB_DSS.split()[1], key.get_base64())
self.assertEquals(1024, key.get_bits())
s = StringIO()
s = StringIO.StringIO()
key.write_private_key(s)
self.assertEqual(DSS_PRIVATE_OUT, s.getvalue())
self.assertEquals(DSS_PRIVATE_OUT, s.getvalue())
s.seek(0)
key2 = DSSKey.from_private_key(s)
self.assertEqual(key, key2)
self.assertEquals(key, key2)
def test_5_load_dss_password(self):
key = DSSKey.from_private_key_file(test_path('test_dss_password.key'), 'television')
self.assertEqual('ssh-dss', key.get_name())
exp_dss = b(FINGER_DSS.split()[1].replace(':', ''))
key = DSSKey.from_private_key_file('tests/test_dss_password.key', 'television')
self.assertEquals('ssh-dss', key.get_name())
exp_dss = FINGER_DSS.split()[1].replace(':', '')
my_dss = hexlify(key.get_fingerprint())
self.assertEqual(exp_dss, my_dss)
self.assertEqual(PUB_DSS.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
self.assertEquals(exp_dss, my_dss)
self.assertEquals(PUB_DSS.split()[1], key.get_base64())
self.assertEquals(1024, key.get_bits())
def test_6_compare_rsa(self):
# verify that the private & public keys compare equal
key = RSAKey.from_private_key_file(test_path('test_rsa.key'))
self.assertEqual(key, key)
pub = RSAKey(data=key.asbytes())
self.assertTrue(key.can_sign())
self.assertTrue(not pub.can_sign())
self.assertEqual(key, pub)
key = RSAKey.from_private_key_file('tests/test_rsa.key')
self.assertEquals(key, key)
pub = RSAKey(data=str(key))
self.assert_(key.can_sign())
self.assert_(not pub.can_sign())
self.assertEquals(key, pub)
def test_7_compare_dss(self):
# verify that the private & public keys compare equal
key = DSSKey.from_private_key_file(test_path('test_dss.key'))
self.assertEqual(key, key)
pub = DSSKey(data=key.asbytes())
self.assertTrue(key.can_sign())
self.assertTrue(not pub.can_sign())
self.assertEqual(key, pub)
key = DSSKey.from_private_key_file('tests/test_dss.key')
self.assertEquals(key, key)
pub = DSSKey(data=str(key))
self.assert_(key.can_sign())
self.assert_(not pub.can_sign())
self.assertEquals(key, pub)
def test_8_sign_rsa(self):
# verify that the rsa private key can sign and verify
key = RSAKey.from_private_key_file(test_path('test_rsa.key'))
msg = key.sign_ssh_data(b'ice weasels')
self.assertTrue(type(msg) is Message)
key = RSAKey.from_private_key_file('tests/test_rsa.key')
msg = key.sign_ssh_data(rng, 'ice weasels')
self.assert_(type(msg) is Message)
msg.rewind()
self.assertEqual('ssh-rsa', msg.get_text())
sig = bytes().join([byte_chr(int(x, 16)) for x in SIGNED_RSA.split(':')])
self.assertEqual(sig, msg.get_binary())
self.assertEquals('ssh-rsa', msg.get_string())
sig = ''.join([chr(int(x, 16)) for x in SIGNED_RSA.split(':')])
self.assertEquals(sig, msg.get_string())
msg.rewind()
pub = RSAKey(data=key.asbytes())
self.assertTrue(pub.verify_ssh_sig(b'ice weasels', msg))
pub = RSAKey(data=str(key))
self.assert_(pub.verify_ssh_sig('ice weasels', msg))
def test_9_sign_dss(self):
# verify that the dss private key can sign and verify
key = DSSKey.from_private_key_file(test_path('test_dss.key'))
msg = key.sign_ssh_data(b'ice weasels')
self.assertTrue(type(msg) is Message)
key = DSSKey.from_private_key_file('tests/test_dss.key')
msg = key.sign_ssh_data(rng, 'ice weasels')
self.assert_(type(msg) is Message)
msg.rewind()
self.assertEqual('ssh-dss', msg.get_text())
self.assertEquals('ssh-dss', msg.get_string())
# can't do the same test as we do for RSA, because DSS signatures
# are usually different each time. but we can test verification
# anyway so it's ok.
self.assertEqual(40, len(msg.get_binary()))
self.assertEquals(40, len(msg.get_string()))
msg.rewind()
pub = DSSKey(data=key.asbytes())
self.assertTrue(pub.verify_ssh_sig(b'ice weasels', msg))
pub = DSSKey(data=str(key))
self.assert_(pub.verify_ssh_sig('ice weasels', msg))
def test_A_generate_rsa(self):
key = RSAKey.generate(1024)
msg = key.sign_ssh_data(b'jerri blank')
msg = key.sign_ssh_data(rng, 'jerri blank')
msg.rewind()
self.assertTrue(key.verify_ssh_sig(b'jerri blank', msg))
self.assert_(key.verify_ssh_sig('jerri blank', msg))
def test_B_generate_dss(self):
key = DSSKey.generate(1024)
msg = key.sign_ssh_data(b'jerri blank')
msg = key.sign_ssh_data(rng, 'jerri blank')
msg.rewind()
self.assertTrue(key.verify_ssh_sig(b'jerri blank', msg))
def test_10_load_ecdsa(self):
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa.key'))
self.assertEqual('ecdsa-sha2-nistp256', key.get_name())
exp_ecdsa = b(FINGER_ECDSA.split()[1].replace(':', ''))
my_ecdsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_ecdsa, my_ecdsa)
self.assertEqual(PUB_ECDSA.split()[1], key.get_base64())
self.assertEqual(256, key.get_bits())
s = StringIO()
key.write_private_key(s)
self.assertEqual(ECDSA_PRIVATE_OUT, s.getvalue())
s.seek(0)
key2 = ECDSAKey.from_private_key(s)
self.assertEqual(key, key2)
def test_11_load_ecdsa_password(self):
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa_password.key'), b'television')
self.assertEqual('ecdsa-sha2-nistp256', key.get_name())
exp_ecdsa = b(FINGER_ECDSA.split()[1].replace(':', ''))
my_ecdsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_ecdsa, my_ecdsa)
self.assertEqual(PUB_ECDSA.split()[1], key.get_base64())
self.assertEqual(256, key.get_bits())
def test_12_compare_ecdsa(self):
# verify that the private & public keys compare equal
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa.key'))
self.assertEqual(key, key)
pub = ECDSAKey(data=key.asbytes())
self.assertTrue(key.can_sign())
self.assertTrue(not pub.can_sign())
self.assertEqual(key, pub)
def test_13_sign_ecdsa(self):
# verify that the rsa private key can sign and verify
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa.key'))
msg = key.sign_ssh_data(b'ice weasels')
self.assertTrue(type(msg) is Message)
msg.rewind()
self.assertEqual('ecdsa-sha2-nistp256', msg.get_text())
# ECDSA signatures, like DSS signatures, tend to be different
# each time, so we can't compare against a "known correct"
# signature.
# Even the length of the signature can change.
msg.rewind()
pub = ECDSAKey(data=key.asbytes())
self.assertTrue(pub.verify_ssh_sig(b'ice weasels', msg))
self.assert_(key.verify_ssh_sig('jerri blank', msg))

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