40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
# Copyright (C) 2011 Jeff Forcier <jeff@bitprophet.org>
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#
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# This file is part of ssh.
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#
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# 'ssh' is free software; you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation; either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# 'ssh' is distrubuted in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with 'ssh'; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA.
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"""
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Compression implementations for a Transport.
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"""
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import zlib
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class ZlibCompressor (object):
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def __init__(self):
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self.z = zlib.compressobj(9)
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def __call__(self, data):
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return self.z.compress(data) + self.z.flush(zlib.Z_FULL_FLUSH)
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class ZlibDecompressor (object):
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def __init__(self):
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self.z = zlib.decompressobj()
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def __call__(self, data):
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return self.z.decompress(data)
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