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Viewing changes to bzrlib/selftest/testsftp.py

  • Committer: Bazaar Package Importer
  • Author(s): Jeff Bailey
  • Date: 2005-11-07 13:17:53 UTC
  • Revision ID: james.westby@ubuntu.com-20051107131753-qsy145z1rfug5i27
Tags: upstream-0.6.2
Import upstream version 0.6.2

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bzrlib/selftest/testsftp.py
 
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# Copyright (C) 2005 Robey Pointer <robey@lag.net>, Canonical Ltd
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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import os
 
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import socket
 
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import threading
 
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import unittest
 
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from bzrlib.selftest import TestCaseInTempDir
 
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from bzrlib.selftest.testtransport import TestTransportMixIn
 
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try:
 
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    import paramiko
 
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    from stub_sftp import StubServer, StubSFTPServer
 
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    paramiko_loaded = True
 
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except ImportError:
 
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    paramiko_loaded = False
 
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STUB_SERVER_KEY = """
 
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-----BEGIN RSA PRIVATE KEY-----
 
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MIICWgIBAAKBgQDTj1bqB4WmayWNPB+8jVSYpZYk80Ujvj680pOTh2bORBjbIAyz
 
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nvuQES5C9BMHjF39LZiGH1iLQy7FgdHyoP+eodI7
 
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-----END RSA PRIVATE KEY-----
 
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"""
 
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class SingleListener (threading.Thread):
 
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    def __init__(self, callback):
 
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        threading.Thread.__init__(self)
 
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        self._callback = callback
 
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        self._socket = socket.socket()
 
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        self._socket.listen(1)
 
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        self.port = self._socket.getsockname()[1]
 
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        self.stop_event = threading.Event()
 
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    def run(self):
 
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        s, _ = self._socket.accept()
 
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        # now close the listen socket
 
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        self._socket.close()
 
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        self._callback(s, self.stop_event)
 
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    def stop(self):
 
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        self.stop_event.set()
 
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class TestCaseWithSFTPServer (TestCaseInTempDir):
 
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    """
 
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    Execute a test case with a stub SFTP server, serving files from the local
 
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    filesystem over the loopback network.
 
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    """
 
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    def _run_server(self, s, stop_event):
 
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        ssh_server = paramiko.Transport(s)
 
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        key_file = os.path.join(self._root, 'test_rsa.key')
 
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        file(key_file, 'w').write(STUB_SERVER_KEY)
 
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        host_key = paramiko.RSAKey.from_private_key_file(key_file)
 
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        ssh_server.add_server_key(host_key)
 
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        server = StubServer()
 
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        ssh_server.set_subsystem_handler('sftp', paramiko.SFTPServer, StubSFTPServer, root=self._root)
 
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        event = threading.Event()
 
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        ssh_server.start_server(event, server)
 
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        event.wait(5.0)
 
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        stop_event.wait(30.0)
 
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    def setUp(self):
 
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        TestCaseInTempDir.setUp(self)
 
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        self._root = self.test_dir
 
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        self._listener = SingleListener(self._run_server)
 
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        self._listener.setDaemon(True)
 
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        self._listener.start()        
 
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        self._sftp_url = 'sftp://foo:bar@localhost:%d/' % (self._listener.port,)
 
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    def tearDown(self):
 
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        self._listener.stop()
 
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        TestCaseInTempDir.tearDown(self)
 
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class SFTPTransportTest (TestCaseWithSFTPServer, TestTransportMixIn):
 
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    readonly = False
 
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    def get_transport(self):
 
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        from bzrlib.transport.sftp import SFTPTransport
 
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        url = self._sftp_url
 
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        return SFTPTransport(url)
 
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if not paramiko_loaded:
 
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    del SFTPTransportTest