[project @ Arch-1:robey@lag.net--2005-master-shake%paramiko--dev--1--patch-55]

fix the loading of known_hosts in the demos to work on winodws/cygwin

demo.py

@@ -114,8 +114,11 @@ try:
     try:
         keys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
     except IOError:
-        print '*** Unable to open host keys file'
+        try:
-        keys = {}
+            keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
+        except IOError:
+            print '*** Unable to open host keys file'
+            keys = {}
 
     key = t.get_remote_server_key()
     if not keys.has_key(hostname):

demo_simple.py

@@ -22,35 +22,6 @@ import sys, os, base64, getpass, socket, traceback, termios, tty, select
 import paramiko
 
 
-#####   utility functions
-
-def load_host_keys():
-    # this file won't exist on windows, but windows doesn't have a standard
-    # location for this file anyway.
-    filename = os.path.expanduser('~/.ssh/known_hosts')
-    keys = {}
-    try:
-        f = open(filename, 'r')
-    except Exception, e:
-        print '*** Unable to open host keys file (%s)' % filename
-        return
-    for line in f:
-        keylist = line.split(' ')
-        if len(keylist) != 3:
-            continue
-        hostlist, keytype, key = keylist
-        hosts = hostlist.split(',')
-        for host in hosts:
-            if not keys.has_key(host):
-                keys[host] = {}
-            if keytype == 'ssh-rsa':
-                keys[host][keytype] = paramiko.RSAKey(data=base64.decodestring(key))
-            elif keytype == 'ssh-dss':
-                keys[host][keytype] = paramiko.DSSKey(data=base64.decodestring(key))
-    f.close()
-    return keys
-
-
 # setup logging
 paramiko.util.log_to_file('demo_simple.log')
 
@@ -83,7 +54,15 @@ password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
 # get host key, if we know one
 hostkeytype = None
 hostkey = None
-hkeys = load_host_keys()
+try:
+    hkeys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
+except IOError:
+    try:
+        hkeys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
+    except IOError:
+        print '*** Unable to open host keys file'
+        hkeys = {}
+
 if hkeys.has_key(hostname):
     hostkeytype = hkeys[hostname].keys()[0]
     hostkey = hkeys[hostname][hostkeytype]

forward.py

@@ -89,32 +89,17 @@ def forward_tunnel(local_port, remote_host, remote_port, transport):
         ssh_transport = transport
     ForwardServer(('', local_port), SubHander).serve_forever()
 
-def load_host_keys():
-    filename = os.path.expanduser('~/.ssh/known_hosts')
-    keys = {}
-    try:
-        f = open(filename, 'r')
-    except Exception, e:
-        print '*** Unable to open host keys file (%s)' % filename
-        return
-    for line in f:
-        keylist = line.split(' ')
-        if len(keylist) != 3:
-            continue
-        hostlist, keytype, key = keylist
-        hosts = hostlist.split(',')
-        for host in hosts:
-            if not keys.has_key(host):
-                keys[host] = {}
-            keys[host][keytype] = base64.decodestring(key)
-    f.close()
-    return keys
-
 def find_default_key_file():
     filename = os.path.expanduser('~/.ssh/id_rsa')
+    if os.access(filename, os.R_OK):
+        return filename
+    filename = os.path.expanduser('~/ssh/id_rsa')
     if os.access(filename, os.R_OK):
         return filename
     filename = os.path.expanduser('~/.ssh/id_dsa')
+    if os.access(filename, os.R_OK):
+        return filename
+    filename = os.path.expanduser('~/ssh/id_dsa')
     if os.access(filename, os.R_OK):
         return filename
     return ''
@@ -174,7 +159,15 @@ if ':' in options.ssh_host:
     except:
         parser.error('SSH port must be a number.')
 
-host_keys = load_host_keys()
+try:
+    host_keys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
+except IOError:
+    try:
+        host_keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
+    except IOError:
+        print '*** Unable to open host keys file'
+        host_keys = {}
+
 if not host_keys.has_key(options.ssh_host):
     print '*** Warning: no host key for %s' % options.ssh_host
     expected_host_key_type = None