moved TLS and SSL classes from transports_nb to new tls_nb module, fixed HTTP CONNECT proxy transport
This commit is contained in:
tomk
parent
f3820706fb
commit
937bb01a69
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@ -70,7 +70,9 @@ class PlugIn:
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self._old_owners_methods.append(owner.__dict__[method.__name__])
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owner.__dict__[method.__name__]=method
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owner.__dict__[self.__class__.__name__]=self
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if self.__class__.__dict__.has_key('plugin'): return self.plugin(owner)
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# following will not work for classes inheriting plugin()
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#if self.__class__.__dict__.has_key('plugin'): return self.plugin(owner)
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if hasattr(self,'plugin'): return self.plugin(owner)
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def PlugOut(self):
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""" Unregister all our staff from main instance and detach from it. """
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@ -25,7 +25,7 @@ import socket
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import debug
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import random
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import transports_nb, dispatcher_nb, auth_nb, roster_nb, protocol
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import transports_nb, tls_nb, dispatcher_nb, auth_nb, roster_nb, protocol
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from client import *
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import logging
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@ -184,10 +184,11 @@ class NBCommonClient:
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bosh_uri = proxy['host'],
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bosh_port = tcp_port)
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else:
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self.socket = transports_nb.NBHTTPProxySocket(
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on_disconnect=self.on_disconnect,
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proxy_creds=(None, None),
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xmpp_server=(self.Server, self.Port))
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# HTTP CONNECT to proxy from environment variables
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self.socket = transports_nb.NBHTTPProxySocket(
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on_disconnect=self.on_disconnect,
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proxy_creds=(None, None),
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xmpp_server=(self.Server, self.Port))
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else:
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self._on_tcp_failure = self._on_connect_failure
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tcp_server=self.Server
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@ -432,7 +433,7 @@ class NonBlockingClient(NBCommonClient):
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self._on_connect()
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return
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# otherwise start TLS
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transports_nb.NonBlockingTLS().PlugIn(
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tls_nb.NonBlockingTLS().PlugIn(
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self,
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on_tls_success=lambda: self._xmpp_connect(socket_type='tls'),
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on_tls_failure=self._on_connect_failure)
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@ -0,0 +1,437 @@
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## tls_nb.py
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## based on transports_nb.py
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##
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## Copyright (C) 2003-2004 Alexey "Snake" Nezhdanov
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## modified by Dimitur Kirov <dkirov@gmail.com>
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##
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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, or (at your option)
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## any later version.
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##
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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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import socket
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from client import PlugIn
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from protocol import *
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import sys
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import os
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import errno
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import time
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import traceback
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import logging
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log = logging.getLogger('gajim.c.x.tls_nb')
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consoleloghandler = logging.StreamHandler()
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consoleloghandler.setLevel(logging.DEBUG)
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consoleloghandler.setFormatter(
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logging.Formatter('%(levelname)s: %(message)s')
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)
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log.setLevel(logging.DEBUG)
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log.addHandler(consoleloghandler)
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log.propagate = False
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# I don't need to load gajim.py just because of few TLS variables, so I changed
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# %s/common\.gajim\.DATA_DIR/\'\.\.\/data\'/c
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# %s/common\.gajim\.MY_CACERTS/\'\%s\/\.gajim\/cacerts\.pem\' \% os\.environ\[\'HOME\'\]/c
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# To change it back do:
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# %s/\'\.\.\/data\'/common\.gajim\.DATA_DIR/c
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# %s/\'%s\/\.gajim\/cacerts\.pem\'\ %\ os\.environ\[\'HOME\'\]/common\.gajim\.MY_CACERTS/c
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# TODO: make the paths configurable - as constructor parameters or sth
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# import common.gajim
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USE_PYOPENSSL = False
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try:
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#raise ImportError("Manually disabled PyOpenSSL")
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import OpenSSL.SSL
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import OpenSSL.crypto
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USE_PYOPENSSL = True
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log.info("PyOpenSSL loaded")
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except ImportError:
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log.debug("Import of PyOpenSSL failed:", exc_info=True)
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# FIXME: Remove these prints before release, replace with a warning dialog.
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print >> sys.stderr, "=" * 79
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print >> sys.stderr, "PyOpenSSL not found, falling back to Python builtin SSL objects (insecure)."
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print >> sys.stderr, "=" * 79
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def torf(cond, tv, fv):
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if cond: return tv
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return fv
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def gattr(obj, attr, default=None):
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try:
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return getattr(obj, attr)
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except:
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return default
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class SSLWrapper:
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class Error(IOError):
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def __init__(self, sock=None, exc=None, errno=None, strerror=None, peer=None):
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self.parent = IOError
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errno = errno or gattr(exc, 'errno')
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strerror = strerror or gattr(exc, 'strerror') or gattr(exc, 'args')
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if not isinstance(strerror, basestring): strerror = repr(strerror)
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self.sock = sock
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self.exc = exc
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self.peer = peer
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self.exc_name = None
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self.exc_args = None
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self.exc_str = None
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self.exc_repr = None
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if self.exc is not None:
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self.exc_name = str(self.exc.__class__)
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self.exc_args = gattr(self.exc, 'args')
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self.exc_str = str(self.exc)
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self.exc_repr = repr(self.exc)
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if not errno:
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try:
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if isinstance(exc, OpenSSL.SSL.SysCallError):
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if self.exc_args[0] > 0:
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errno = self.exc_args[0]
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strerror = self.exc_args[1]
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except: pass
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self.parent.__init__(self, errno, strerror)
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if self.peer is None and sock is not None:
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try:
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ppeer = self.sock.getpeername()
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if len(ppeer) == 2 and isinstance(ppeer[0], basestring) \
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and isinstance(ppeer[1], int):
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self.peer = ppeer
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except: pass
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def __str__(self):
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s = str(self.__class__)
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if self.peer: s += " for %s:%d" % self.peer
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if self.errno is not None: s += ": [Errno: %d]" % self.errno
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if self.strerror: s += " (%s)" % self.strerror
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if self.exc_name:
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s += ", Caused by %s" % self.exc_name
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if self.exc_str:
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if self.strerror: s += "(%s)" % self.exc_str
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else: s += "(%s)" % str(self.exc_args)
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return s
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def __init__(self, sslobj, sock=None):
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self.sslobj = sslobj
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self.sock = sock
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log.debug("%s.__init__ called with %s", self.__class__, sslobj)
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def recv(self, data, flags=None):
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""" Receive wrapper for SSL object
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We can return None out of this function to signal that no data is
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available right now. Better than an exception, which differs
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depending on which SSL lib we're using. Unfortunately returning ''
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can indicate that the socket has been closed, so to be sure, we avoid
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this by returning None. """
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raise NotImplementedException()
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def send(self, data, flags=None, now = False):
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raise NotImplementedException()
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class PyOpenSSLWrapper(SSLWrapper):
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'''Wrapper class for PyOpenSSL's recv() and send() methods'''
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def __init__(self, *args):
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self.parent = SSLWrapper
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self.parent.__init__(self, *args)
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def is_numtoolarge(self, e):
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t = ('asn1 encoding routines', 'a2d_ASN1_OBJECT', 'first num too large')
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return isinstance(e.args, (list, tuple)) and len(e.args) == 1 and \
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isinstance(e.args[0], (list, tuple)) and len(e.args[0]) == 2 and \
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e.args[0][0] == e.args[0][1] == t
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def recv(self, bufsize, flags=None):
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retval = None
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try:
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if flags is None: retval = self.sslobj.recv(bufsize)
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else: retval = self.sslobj.recv(bufsize, flags)
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except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantWriteError), e:
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pass
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# log.debug("Recv: " + repr(e))
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except OpenSSL.SSL.SysCallError, e:
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log.debug("Recv: Got OpenSSL.SSL.SysCallError: " + repr(e), exc_info=True)
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#traceback.print_exc()
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raise SSLWrapper.Error(self.sock or self.sslobj, e)
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except OpenSSL.SSL.Error, e:
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if self.is_numtoolarge(e):
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# warn, but ignore this exception
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log.warning("Recv: OpenSSL: asn1enc: first num too large (ignored)")
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else:
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log.debug("Recv: Caught OpenSSL.SSL.Error:", exc_info=True)
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#traceback.print_exc()
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#print "Current Stack:"
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#traceback.print_stack()
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raise SSLWrapper.Error(self.sock or self.sslobj, e)
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return retval
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def send(self, data, flags=None, now = False):
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try:
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if flags is None: return self.sslobj.send(data)
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else: return self.sslobj.send(data, flags)
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except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantWriteError), e:
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#log.debug("Send: " + repr(e))
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time.sleep(0.1) # prevent 100% CPU usage
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except OpenSSL.SSL.SysCallError, e:
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log.error("Send: Got OpenSSL.SSL.SysCallError: " + repr(e), exc_info=True)
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#traceback.print_exc()
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raise SSLWrapper.Error(self.sock or self.sslobj, e)
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except OpenSSL.SSL.Error, e:
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if self.is_numtoolarge(e):
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# warn, but ignore this exception
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log.warning("Send: OpenSSL: asn1enc: first num too large (ignored)")
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else:
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log.error("Send: Caught OpenSSL.SSL.Error:", exc_info=True)
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#traceback.print_exc()
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#print "Current Stack:"
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#traceback.print_stack()
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raise SSLWrapper.Error(self.sock or self.sslobj, e)
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return 0
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class StdlibSSLWrapper(SSLWrapper):
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'''Wrapper class for Python's socket.ssl read() and write() methods'''
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def __init__(self, *args):
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self.parent = SSLWrapper
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self.parent.__init__(self, *args)
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def recv(self, bufsize, flags=None):
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# we simply ignore flags since ssl object doesn't support it
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try:
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return self.sslobj.read(bufsize)
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except socket.sslerror, e:
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#log.debug("Recv: Caught socket.sslerror:", exc_info=True)
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#traceback.print_exc()
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if e.args[0] not in (socket.SSL_ERROR_WANT_READ, socket.SSL_ERROR_WANT_WRITE):
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raise SSLWrapper.Error(self.sock or self.sslobj, e)
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return None
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def send(self, data, flags=None, now = False):
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# we simply ignore flags since ssl object doesn't support it
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try:
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return self.sslobj.write(data)
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except socket.sslerror, e:
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#log.debug("Send: Caught socket.sslerror:", exc_info=True)
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#traceback.print_exc()
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if e.args[0] not in (socket.SSL_ERROR_WANT_READ, socket.SSL_ERROR_WANT_WRITE):
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raise SSLWrapper.Error(self.sock or self.sslobj, e)
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return 0
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class NonBlockingTLS(PlugIn):
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''' TLS connection used to encrypts already estabilished tcp connection.'''
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# from ssl.h (partial extract)
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ssl_h_bits = { "SSL_ST_CONNECT": 0x1000, "SSL_ST_ACCEPT": 0x2000,
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"SSL_CB_LOOP": 0x01, "SSL_CB_EXIT": 0x02,
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"SSL_CB_READ": 0x04, "SSL_CB_WRITE": 0x08,
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"SSL_CB_ALERT": 0x4000,
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"SSL_CB_HANDSHAKE_START": 0x10, "SSL_CB_HANDSHAKE_DONE": 0x20}
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def PlugIn(self, owner, on_tls_success, on_tls_failure, now=0):
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''' If the 'now' argument is true then starts using encryption immidiatedly.
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If 'now' in false then starts encryption as soon as TLS feature is
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declared by the server (if it were already declared - it is ok).
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'''
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if owner.__dict__.has_key('NonBlockingTLS'):
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return # Already enabled.
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PlugIn.PlugIn(self, owner)
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DBG_LINE='NonBlockingTLS'
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self.on_tls_success = on_tls_success
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self.on_tls_faliure = on_tls_failure
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if now:
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try:
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res = self._startSSL()
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except Exception, e:
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log.error("PlugIn: while trying _startSSL():", exc_info=True)
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#traceback.print_exc()
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self._owner.socket.pollend()
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return
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on_tls_success()
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return res
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if self._owner.Dispatcher.Stream.features:
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try:
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self.FeaturesHandler(self._owner.Dispatcher, self._owner.Dispatcher.Stream.features)
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except NodeProcessed:
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pass
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else:
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self._owner.RegisterHandlerOnce('features',self.FeaturesHandler, xmlns=NS_STREAMS)
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self.starttls = None
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def plugout(self,now=0):
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''' Unregisters TLS handler's from owner's dispatcher. Take note that encription
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can not be stopped once started. You can only break the connection and start over.'''
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# if dispatcher is not plugged we cannot (un)register handlers
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if self._owner.__dict__.has_key('Dispatcher'):
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self._owner.UnregisterHandler('features', self.FeaturesHandler,xmlns=NS_STREAMS)
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self._owner.Dispatcher.PlugOut()
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self._owner = None
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def FeaturesHandler(self, conn, feats):
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''' Used to analyse server <features/> tag for TLS support.
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If TLS is supported starts the encryption negotiation. Used internally '''
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if not feats.getTag('starttls', namespace=NS_TLS):
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self.DEBUG("TLS unsupported by remote server.", 'warn')
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self.on_tls_failure("TLS unsupported by remote server.")
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return
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self.DEBUG("TLS supported by remote server. Requesting TLS start.", 'ok')
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self._owner.RegisterHandlerOnce('proceed', self.StartTLSHandler, xmlns=NS_TLS)
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self._owner.RegisterHandlerOnce('failure', self.StartTLSHandler, xmlns=NS_TLS)
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self._owner.send('<starttls xmlns="%s"/>' % NS_TLS)
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raise NodeProcessed
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def _dumpX509(self, cert, stream=sys.stderr):
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print >> stream, "Digest (SHA-1):", cert.digest("sha1")
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print >> stream, "Digest (MD5):", cert.digest("md5")
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print >> stream, "Serial #:", cert.get_serial_number()
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print >> stream, "Version:", cert.get_version()
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print >> stream, "Expired:", torf(cert.has_expired(), "Yes", "No")
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print >> stream, "Subject:"
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self._dumpX509Name(cert.get_subject(), stream)
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print >> stream, "Issuer:"
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self._dumpX509Name(cert.get_issuer(), stream)
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self._dumpPKey(cert.get_pubkey(), stream)
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def _dumpX509Name(self, name, stream=sys.stderr):
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print >> stream, "X509Name:", str(name)
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def _dumpPKey(self, pkey, stream=sys.stderr):
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typedict = {OpenSSL.crypto.TYPE_RSA: "RSA", OpenSSL.crypto.TYPE_DSA: "DSA"}
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print >> stream, "PKey bits:", pkey.bits()
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print >> stream, "PKey type: %s (%d)" % (typedict.get(pkey.type(), "Unknown"), pkey.type())
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def _startSSL(self):
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''' Immidiatedly switch socket to TLS mode. Used internally.'''
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log.debug("_startSSL called")
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if USE_PYOPENSSL: return self._startSSL_pyOpenSSL()
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return self._startSSL_stdlib()
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def _startSSL_pyOpenSSL(self):
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#log.debug("_startSSL_pyOpenSSL called, thread id: %s", str(thread.get_ident()))
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log.debug("_startSSL_pyOpenSSL called")
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tcpsock = self._owner.Connection
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# FIXME: should method be configurable?
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tcpsock._sslContext = OpenSSL.SSL.Context(OpenSSL.SSL.TLSv1_METHOD)
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#tcpsock._sslContext = OpenSSL.SSL.Context(OpenSSL.SSL.SSLv23_METHOD)
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tcpsock.ssl_errnum = 0
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tcpsock._sslContext.set_verify(OpenSSL.SSL.VERIFY_PEER, self._ssl_verify_callback)
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cacerts = os.path.join('../data', 'other', 'cacerts.pem')
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try:
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tcpsock._sslContext.load_verify_locations(cacerts)
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except:
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log.warning('Unable to load SSL certificats from file %s' % \
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os.path.abspath(cacerts))
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# load users certs
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if os.path.isfile('%s/.gajim/cacerts.pem' % os.environ['HOME']):
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store = tcpsock._sslContext.get_cert_store()
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f = open('%s/.gajim/cacerts.pem' % os.environ['HOME'])
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lines = f.readlines()
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i = 0
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begin = -1
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for line in lines:
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if 'BEGIN CERTIFICATE' in line:
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begin = i
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elif 'END CERTIFICATE' in line and begin > -1:
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cert = ''.join(lines[begin:i+2])
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try:
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X509cert = OpenSSL.crypto.load_certificate(
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OpenSSL.crypto.FILETYPE_PEM, cert)
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store.add_cert(X509cert)
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except OpenSSL.crypto.Error, exception_obj:
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log.warning('Unable to load a certificate from file %s: %s' %\
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('%s/.gajim/cacerts.pem' % os.environ['HOME'], exception_obj.args[0][0][2]))
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except:
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log.warning(
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'Unknown error while loading certificate from file %s' % \
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'%s/.gajim/cacerts.pem' % os.environ['HOME'])
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begin = -1
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i += 1
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tcpsock._sslObj = OpenSSL.SSL.Connection(tcpsock._sslContext, tcpsock._sock)
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tcpsock._sslObj.set_connect_state() # set to client mode
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wrapper = PyOpenSSLWrapper(tcpsock._sslObj)
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tcpsock._recv = wrapper.recv
|
||||
tcpsock._send = wrapper.send
|
||||
|
||||
log.debug("Initiating handshake...")
|
||||
# FIXME: Figure out why _connect_success is called before the
|
||||
# SSL handshake is completed in STARTTLS mode. See #2838.
|
||||
tcpsock._sslObj.setblocking(True)
|
||||
try:
|
||||
self.starttls='in progress'
|
||||
tcpsock._sslObj.do_handshake()
|
||||
except:
|
||||
log.error('Error while TLS handshake: ', exc_info=True)
|
||||
self.on_tls_failure('Error while TLS Handshake')
|
||||
return
|
||||
tcpsock._sslObj.setblocking(False)
|
||||
log.debug("Synchronous handshake completed")
|
||||
#log.debug("Async handshake started...")
|
||||
|
||||
# fake it, for now
|
||||
self.starttls='success'
|
||||
|
||||
def _startSSL_stdlib(self):
|
||||
log.debug("_startSSL_stdlib called")
|
||||
tcpsock=self._owner.Connection
|
||||
tcpsock._sock.setblocking(True)
|
||||
tcpsock._sslObj = socket.ssl(tcpsock._sock, None, None)
|
||||
tcpsock._sock.setblocking(False)
|
||||
tcpsock._sslIssuer = tcpsock._sslObj.issuer()
|
||||
tcpsock._sslServer = tcpsock._sslObj.server()
|
||||
wrapper = StdlibSSLWrapper(tcpsock._sslObj, tcpsock._sock)
|
||||
tcpsock._recv = wrapper.recv
|
||||
tcpsock._send = wrapper.send
|
||||
self.starttls='success'
|
||||
|
||||
def _ssl_verify_callback(self, sslconn, cert, errnum, depth, ok):
|
||||
# Exceptions can't propagate up through this callback, so print them here.
|
||||
try:
|
||||
self._owner.Connection.ssl_fingerprint_sha1 = cert.digest('sha1')
|
||||
if errnum == 0:
|
||||
return True
|
||||
self._owner.Connection.ssl_errnum = errnum
|
||||
self._owner.Connection.ssl_cert_pem = OpenSSL.crypto.dump_certificate(
|
||||
OpenSSL.crypto.FILETYPE_PEM, cert)
|
||||
return True
|
||||
except:
|
||||
log.error("Exception caught in _ssl_info_callback:", exc_info=True)
|
||||
traceback.print_exc() # Make sure something is printed, even if log is disabled.
|
||||
|
||||
def StartTLSHandler(self, conn, starttls):
|
||||
''' Handle server reply if TLS is allowed to process. Behaves accordingly.
|
||||
Used internally.'''
|
||||
if starttls.getNamespace() <> NS_TLS:
|
||||
self.on_tls_failure('Unknown namespace: %s' % starttls.getNamespace())
|
||||
return
|
||||
self.starttls = starttls.getName()
|
||||
if self.starttls == 'failure':
|
||||
self.on_tls_failure('TLS <failure> received: %s' % self.starttls)
|
||||
return
|
||||
self.DEBUG('Got starttls proceed response. Switching to TLS/SSL...','ok')
|
||||
try:
|
||||
self._startSSL()
|
||||
except Exception, e:
|
||||
log.error("StartTLSHandler:", exc_info=True)
|
||||
self.on_tls_failure('in StartTLSHandler')
|
||||
#traceback.print_exc()
|
||||
return
|
||||
self._owner.Dispatcher.PlugOut()
|
||||
self.on_tls_success()
|
||||
|
|
@ -14,8 +14,8 @@
|
|||
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
## GNU General Public License for more details.
|
||||
|
||||
import socket,select,base64,dispatcher_nb
|
||||
import struct
|
||||
import socket,base64
|
||||
|
||||
from simplexml import ustr
|
||||
from client import PlugIn
|
||||
from idlequeue import IdleObject
|
||||
|
|
@ -27,7 +27,6 @@ import errno
|
|||
import time
|
||||
|
||||
import traceback
|
||||
import threading
|
||||
|
||||
import logging
|
||||
log = logging.getLogger('gajim.c.x.transports_nb')
|
||||
|
|
@ -52,21 +51,6 @@ def urisplit(self, uri):
|
|||
grouped = re.match(regex, uri).groups()
|
||||
proto, host, path = grouped[1], grouped[3], grouped[4]
|
||||
return proto, host, path
|
||||
|
||||
|
||||
|
||||
|
||||
# I don't need to load gajim.py just because of few TLS variables, so I changed
|
||||
# %s/common\.gajim\.DATA_DIR/\'\.\.\/data\'/c
|
||||
# %s/common\.gajim\.MY_CACERTS/\'\%s\/\.gajim\/cacerts\.pem\' \% os\.environ\[\'HOME\'\]/c
|
||||
|
||||
# To change it back do:
|
||||
# %s/\'\.\.\/data\'/common\.gajim\.DATA_DIR/c
|
||||
# %s/\'%s\/\.gajim\/cacerts\.pem\'\ %\ os\.environ\[\'HOME\'\]/common\.gajim\.MY_CACERTS/c
|
||||
# TODO: make the paths configurable - as constructor parameters or sth
|
||||
|
||||
|
||||
# import common.gajim
|
||||
|
||||
# timeout to connect to the server socket, it doesn't include auth
|
||||
CONNECT_TIMEOUT_SECONDS = 30
|
||||
|
|
@ -130,8 +114,8 @@ class NonBlockingTcp(PlugIn, IdleObject):
|
|||
self.set_timeout, self.remove_timeout]
|
||||
|
||||
def plugin(self, owner):
|
||||
owner.Connection=self
|
||||
print 'plugin called'
|
||||
owner.Connection=self
|
||||
self.idlequeue = owner.idlequeue
|
||||
|
||||
def plugout(self):
|
||||
|
|
@ -372,6 +356,7 @@ class NonBlockingTcp(PlugIn, IdleObject):
|
|||
else:
|
||||
self.on_receive = None
|
||||
return
|
||||
log.debug('setting onreceive on %s' % recv_handler)
|
||||
self.on_receive = recv_handler
|
||||
|
||||
|
||||
|
|
@ -406,484 +391,33 @@ class NonBlockingTcp(PlugIn, IdleObject):
|
|||
# in case of some other exception
|
||||
# FIXME: is this needed??
|
||||
if errnum != 0:
|
||||
self.DEBUG(self.DBG, errstr, 'error')
|
||||
log.error("CConnection to %s lost: %s %s" % (self.server, errnum, errstr))
|
||||
if not errors_only and self.state in [CONNECTING, CONNECTED]:
|
||||
self.pollend(retry=True)
|
||||
self.disconnect()
|
||||
return
|
||||
received = ''
|
||||
|
||||
# we have received some bytes, stop the timeout!
|
||||
self.renew_send_timeout()
|
||||
# pass received data to owner
|
||||
#self.
|
||||
if self.on_receive:
|
||||
self._raise_event(DATA_RECEIVED, received)
|
||||
self._on_receive(received)
|
||||
else:
|
||||
# This should never happen, so we need the debug
|
||||
# This should never happen, so we need the debug. (If there is no handler
|
||||
# on receive spacified, data are passed to Dispatcher.ProcessNonBlocking)
|
||||
log.error('SOCKET Unhandled data received: %s' % received)
|
||||
self.disconnect()
|
||||
|
||||
def _on_receive(self, data):
|
||||
# Overriding this method allows modifying received data before it is passed
|
||||
# to callback.
|
||||
# to owner's callback.
|
||||
log.debug('About to call on_receive which is %s' % self.on_receive)
|
||||
self.on_receive(data)
|
||||
|
||||
|
||||
class NonBlockingHttpBOSH(NonBlockingTcp):
|
||||
'''
|
||||
Socket wrapper that makes HTTP message out of send data and peels-off
|
||||
HTTP headers from incoming messages
|
||||
'''
|
||||
|
||||
def __init__(self, bosh_uri, bosh_port, on_disconnect):
|
||||
self.bosh_protocol, self.bosh_host, self.bosh_path = self.urisplit(bosh_uri)
|
||||
if self.bosh_protocol is None:
|
||||
self.bosh_protocol = 'http'
|
||||
if self.bosh_path == '':
|
||||
bosh_path = '/'
|
||||
self.bosh_port = bosh_port
|
||||
|
||||
def send(self, raw_data, now=False):
|
||||
|
||||
NonBlockingTcp.send(
|
||||
self,
|
||||
self.build_http_message(raw_data),
|
||||
now)
|
||||
|
||||
def _on_receive(self,data):
|
||||
'''Preceeds pass of received data to Client class. Gets rid of HTTP headers
|
||||
and checks them.'''
|
||||
statusline, headers, httpbody = self.parse_http_message(data)
|
||||
if statusline[1] != '200':
|
||||
log.error('HTTP Error: %s %s' % (statusline[1], statusline[2]))
|
||||
self.disconnect()
|
||||
self.on_receive(httpbody)
|
||||
|
||||
|
||||
def build_http_message(self, httpbody):
|
||||
'''
|
||||
Builds bosh http message with given body.
|
||||
Values for headers and status line fields are taken from class variables.
|
||||
)
|
||||
'''
|
||||
headers = ['POST %s HTTP/1.1' % self.bosh_path,
|
||||
'Host: %s:%s' % (self.bosh_host, self.bosh_port),
|
||||
'Content-Type: text/xml; charset=utf-8',
|
||||
'Content-Length: %s' % len(str(httpbody)),
|
||||
'\r\n']
|
||||
headers = '\r\n'.join(headers)
|
||||
return('%s%s\r\n' % (headers, httpbody))
|
||||
|
||||
def parse_http_message(self, message):
|
||||
'''
|
||||
splits http message to tuple (
|
||||
statusline - list of e.g. ['HTTP/1.1', '200', 'OK'],
|
||||
headers - dictionary of headers e.g. {'Content-Length': '604',
|
||||
'Content-Type': 'text/xml; charset=utf-8'},
|
||||
httpbody - string with http body
|
||||
)
|
||||
'''
|
||||
message = message.replace('\r','')
|
||||
(header, httpbody) = message.split('\n\n')
|
||||
header = header.split('\n')
|
||||
statusline = header[0].split(' ')
|
||||
header = header[1:]
|
||||
headers = {}
|
||||
for dummy in header:
|
||||
row = dummy.split(' ',1)
|
||||
headers[row[0][:-1]] = row[1]
|
||||
return (statusline, headers, httpbody)
|
||||
|
||||
|
||||
USE_PYOPENSSL = False
|
||||
|
||||
try:
|
||||
#raise ImportError("Manually disabled PyOpenSSL")
|
||||
import OpenSSL.SSL
|
||||
import OpenSSL.crypto
|
||||
USE_PYOPENSSL = True
|
||||
log.info("PyOpenSSL loaded")
|
||||
except ImportError:
|
||||
log.debug("Import of PyOpenSSL failed:", exc_info=True)
|
||||
|
||||
# FIXME: Remove these prints before release, replace with a warning dialog.
|
||||
print >> sys.stderr, "=" * 79
|
||||
print >> sys.stderr, "PyOpenSSL not found, falling back to Python builtin SSL objects (insecure)."
|
||||
print >> sys.stderr, "=" * 79
|
||||
|
||||
|
||||
def torf(cond, tv, fv):
|
||||
if cond: return tv
|
||||
return fv
|
||||
|
||||
def gattr(obj, attr, default=None):
|
||||
try:
|
||||
return getattr(obj, attr)
|
||||
except:
|
||||
return default
|
||||
|
||||
class SSLWrapper:
|
||||
class Error(IOError):
|
||||
def __init__(self, sock=None, exc=None, errno=None, strerror=None, peer=None):
|
||||
self.parent = IOError
|
||||
|
||||
errno = errno or gattr(exc, 'errno')
|
||||
strerror = strerror or gattr(exc, 'strerror') or gattr(exc, 'args')
|
||||
if not isinstance(strerror, basestring): strerror = repr(strerror)
|
||||
|
||||
self.sock = sock
|
||||
self.exc = exc
|
||||
self.peer = peer
|
||||
self.exc_name = None
|
||||
self.exc_args = None
|
||||
self.exc_str = None
|
||||
self.exc_repr = None
|
||||
|
||||
if self.exc is not None:
|
||||
self.exc_name = str(self.exc.__class__)
|
||||
self.exc_args = gattr(self.exc, 'args')
|
||||
self.exc_str = str(self.exc)
|
||||
self.exc_repr = repr(self.exc)
|
||||
if not errno:
|
||||
try:
|
||||
if isinstance(exc, OpenSSL.SSL.SysCallError):
|
||||
if self.exc_args[0] > 0:
|
||||
errno = self.exc_args[0]
|
||||
strerror = self.exc_args[1]
|
||||
except: pass
|
||||
|
||||
self.parent.__init__(self, errno, strerror)
|
||||
|
||||
if self.peer is None and sock is not None:
|
||||
try:
|
||||
ppeer = self.sock.getpeername()
|
||||
if len(ppeer) == 2 and isinstance(ppeer[0], basestring) \
|
||||
and isinstance(ppeer[1], int):
|
||||
self.peer = ppeer
|
||||
except: pass
|
||||
|
||||
def __str__(self):
|
||||
s = str(self.__class__)
|
||||
if self.peer: s += " for %s:%d" % self.peer
|
||||
if self.errno is not None: s += ": [Errno: %d]" % self.errno
|
||||
if self.strerror: s += " (%s)" % self.strerror
|
||||
if self.exc_name:
|
||||
s += ", Caused by %s" % self.exc_name
|
||||
if self.exc_str:
|
||||
if self.strerror: s += "(%s)" % self.exc_str
|
||||
else: s += "(%s)" % str(self.exc_args)
|
||||
return s
|
||||
|
||||
def __init__(self, sslobj, sock=None):
|
||||
self.sslobj = sslobj
|
||||
self.sock = sock
|
||||
log.debug("%s.__init__ called with %s", self.__class__, sslobj)
|
||||
|
||||
def recv(self, data, flags=None):
|
||||
""" Receive wrapper for SSL object
|
||||
|
||||
We can return None out of this function to signal that no data is
|
||||
available right now. Better than an exception, which differs
|
||||
depending on which SSL lib we're using. Unfortunately returning ''
|
||||
can indicate that the socket has been closed, so to be sure, we avoid
|
||||
this by returning None. """
|
||||
|
||||
raise NotImplementedException()
|
||||
|
||||
def send(self, data, flags=None, now = False):
|
||||
raise NotImplementedException()
|
||||
|
||||
class PyOpenSSLWrapper(SSLWrapper):
|
||||
'''Wrapper class for PyOpenSSL's recv() and send() methods'''
|
||||
|
||||
def __init__(self, *args):
|
||||
self.parent = SSLWrapper
|
||||
self.parent.__init__(self, *args)
|
||||
|
||||
def is_numtoolarge(self, e):
|
||||
t = ('asn1 encoding routines', 'a2d_ASN1_OBJECT', 'first num too large')
|
||||
return isinstance(e.args, (list, tuple)) and len(e.args) == 1 and \
|
||||
isinstance(e.args[0], (list, tuple)) and len(e.args[0]) == 2 and \
|
||||
e.args[0][0] == e.args[0][1] == t
|
||||
|
||||
def recv(self, bufsize, flags=None):
|
||||
retval = None
|
||||
try:
|
||||
if flags is None: retval = self.sslobj.recv(bufsize)
|
||||
else: retval = self.sslobj.recv(bufsize, flags)
|
||||
except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantWriteError), e:
|
||||
pass
|
||||
# log.debug("Recv: " + repr(e))
|
||||
except OpenSSL.SSL.SysCallError, e:
|
||||
log.debug("Recv: Got OpenSSL.SSL.SysCallError: " + repr(e), exc_info=True)
|
||||
#traceback.print_exc()
|
||||
raise SSLWrapper.Error(self.sock or self.sslobj, e)
|
||||
except OpenSSL.SSL.Error, e:
|
||||
if self.is_numtoolarge(e):
|
||||
# warn, but ignore this exception
|
||||
log.warning("Recv: OpenSSL: asn1enc: first num too large (ignored)")
|
||||
else:
|
||||
log.debug("Recv: Caught OpenSSL.SSL.Error:", exc_info=True)
|
||||
#traceback.print_exc()
|
||||
#print "Current Stack:"
|
||||
#traceback.print_stack()
|
||||
raise SSLWrapper.Error(self.sock or self.sslobj, e)
|
||||
return retval
|
||||
|
||||
def send(self, data, flags=None, now = False):
|
||||
try:
|
||||
if flags is None: return self.sslobj.send(data)
|
||||
else: return self.sslobj.send(data, flags)
|
||||
except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantWriteError), e:
|
||||
#log.debug("Send: " + repr(e))
|
||||
time.sleep(0.1) # prevent 100% CPU usage
|
||||
except OpenSSL.SSL.SysCallError, e:
|
||||
log.error("Send: Got OpenSSL.SSL.SysCallError: " + repr(e), exc_info=True)
|
||||
#traceback.print_exc()
|
||||
raise SSLWrapper.Error(self.sock or self.sslobj, e)
|
||||
except OpenSSL.SSL.Error, e:
|
||||
if self.is_numtoolarge(e):
|
||||
# warn, but ignore this exception
|
||||
log.warning("Send: OpenSSL: asn1enc: first num too large (ignored)")
|
||||
else:
|
||||
log.error("Send: Caught OpenSSL.SSL.Error:", exc_info=True)
|
||||
#traceback.print_exc()
|
||||
#print "Current Stack:"
|
||||
#traceback.print_stack()
|
||||
raise SSLWrapper.Error(self.sock or self.sslobj, e)
|
||||
return 0
|
||||
|
||||
class StdlibSSLWrapper(SSLWrapper):
|
||||
'''Wrapper class for Python's socket.ssl read() and write() methods'''
|
||||
|
||||
def __init__(self, *args):
|
||||
self.parent = SSLWrapper
|
||||
self.parent.__init__(self, *args)
|
||||
|
||||
def recv(self, bufsize, flags=None):
|
||||
# we simply ignore flags since ssl object doesn't support it
|
||||
try:
|
||||
return self.sslobj.read(bufsize)
|
||||
except socket.sslerror, e:
|
||||
#log.debug("Recv: Caught socket.sslerror:", exc_info=True)
|
||||
#traceback.print_exc()
|
||||
if e.args[0] not in (socket.SSL_ERROR_WANT_READ, socket.SSL_ERROR_WANT_WRITE):
|
||||
raise SSLWrapper.Error(self.sock or self.sslobj, e)
|
||||
return None
|
||||
|
||||
def send(self, data, flags=None, now = False):
|
||||
# we simply ignore flags since ssl object doesn't support it
|
||||
try:
|
||||
return self.sslobj.write(data)
|
||||
except socket.sslerror, e:
|
||||
#log.debug("Send: Caught socket.sslerror:", exc_info=True)
|
||||
#traceback.print_exc()
|
||||
if e.args[0] not in (socket.SSL_ERROR_WANT_READ, socket.SSL_ERROR_WANT_WRITE):
|
||||
raise SSLWrapper.Error(self.sock or self.sslobj, e)
|
||||
return 0
|
||||
|
||||
|
||||
class NonBlockingTLS(PlugIn):
|
||||
''' TLS connection used to encrypts already estabilished tcp connection.'''
|
||||
|
||||
# from ssl.h (partial extract)
|
||||
ssl_h_bits = { "SSL_ST_CONNECT": 0x1000, "SSL_ST_ACCEPT": 0x2000,
|
||||
"SSL_CB_LOOP": 0x01, "SSL_CB_EXIT": 0x02,
|
||||
"SSL_CB_READ": 0x04, "SSL_CB_WRITE": 0x08,
|
||||
"SSL_CB_ALERT": 0x4000,
|
||||
"SSL_CB_HANDSHAKE_START": 0x10, "SSL_CB_HANDSHAKE_DONE": 0x20}
|
||||
|
||||
def PlugIn(self, owner, on_tls_success, on_tls_failure, now=0):
|
||||
''' If the 'now' argument is true then starts using encryption immidiatedly.
|
||||
If 'now' in false then starts encryption as soon as TLS feature is
|
||||
declared by the server (if it were already declared - it is ok).
|
||||
'''
|
||||
if owner.__dict__.has_key('NonBlockingTLS'):
|
||||
return # Already enabled.
|
||||
PlugIn.PlugIn(self, owner)
|
||||
DBG_LINE='NonBlockingTLS'
|
||||
self.on_tls_success = on_tls_success
|
||||
self.on_tls_faliure = on_tls_failure
|
||||
if now:
|
||||
try:
|
||||
res = self._startSSL()
|
||||
except Exception, e:
|
||||
log.error("PlugIn: while trying _startSSL():", exc_info=True)
|
||||
#traceback.print_exc()
|
||||
self._owner.socket.pollend()
|
||||
return
|
||||
on_tls_success()
|
||||
return res
|
||||
if self._owner.Dispatcher.Stream.features:
|
||||
try:
|
||||
self.FeaturesHandler(self._owner.Dispatcher, self._owner.Dispatcher.Stream.features)
|
||||
except NodeProcessed:
|
||||
pass
|
||||
else:
|
||||
self._owner.RegisterHandlerOnce('features',self.FeaturesHandler, xmlns=NS_STREAMS)
|
||||
self.starttls = None
|
||||
|
||||
def plugout(self,now=0):
|
||||
''' Unregisters TLS handler's from owner's dispatcher. Take note that encription
|
||||
can not be stopped once started. You can only break the connection and start over.'''
|
||||
# if dispatcher is not plugged we cannot (un)register handlers
|
||||
if self._owner.__dict__.has_key('Dispatcher'):
|
||||
self._owner.UnregisterHandler('features', self.FeaturesHandler,xmlns=NS_STREAMS)
|
||||
self._owner.Dispatcher.PlugOut()
|
||||
self._owner = None
|
||||
|
||||
def FeaturesHandler(self, conn, feats):
|
||||
''' Used to analyse server <features/> tag for TLS support.
|
||||
If TLS is supported starts the encryption negotiation. Used internally '''
|
||||
if not feats.getTag('starttls', namespace=NS_TLS):
|
||||
self.DEBUG("TLS unsupported by remote server.", 'warn')
|
||||
self.on_tls_failure("TLS unsupported by remote server.")
|
||||
return
|
||||
self.DEBUG("TLS supported by remote server. Requesting TLS start.", 'ok')
|
||||
self._owner.RegisterHandlerOnce('proceed', self.StartTLSHandler, xmlns=NS_TLS)
|
||||
self._owner.RegisterHandlerOnce('failure', self.StartTLSHandler, xmlns=NS_TLS)
|
||||
self._owner.send('<starttls xmlns="%s"/>' % NS_TLS)
|
||||
raise NodeProcessed
|
||||
|
||||
def _dumpX509(self, cert, stream=sys.stderr):
|
||||
print >> stream, "Digest (SHA-1):", cert.digest("sha1")
|
||||
print >> stream, "Digest (MD5):", cert.digest("md5")
|
||||
print >> stream, "Serial #:", cert.get_serial_number()
|
||||
print >> stream, "Version:", cert.get_version()
|
||||
print >> stream, "Expired:", torf(cert.has_expired(), "Yes", "No")
|
||||
print >> stream, "Subject:"
|
||||
self._dumpX509Name(cert.get_subject(), stream)
|
||||
print >> stream, "Issuer:"
|
||||
self._dumpX509Name(cert.get_issuer(), stream)
|
||||
self._dumpPKey(cert.get_pubkey(), stream)
|
||||
|
||||
def _dumpX509Name(self, name, stream=sys.stderr):
|
||||
print >> stream, "X509Name:", str(name)
|
||||
|
||||
def _dumpPKey(self, pkey, stream=sys.stderr):
|
||||
typedict = {OpenSSL.crypto.TYPE_RSA: "RSA", OpenSSL.crypto.TYPE_DSA: "DSA"}
|
||||
print >> stream, "PKey bits:", pkey.bits()
|
||||
print >> stream, "PKey type: %s (%d)" % (typedict.get(pkey.type(), "Unknown"), pkey.type())
|
||||
|
||||
def _startSSL(self):
|
||||
''' Immidiatedly switch socket to TLS mode. Used internally.'''
|
||||
log.debug("_startSSL called")
|
||||
if USE_PYOPENSSL: return self._startSSL_pyOpenSSL()
|
||||
return self._startSSL_stdlib()
|
||||
|
||||
def _startSSL_pyOpenSSL(self):
|
||||
#log.debug("_startSSL_pyOpenSSL called, thread id: %s", str(thread.get_ident()))
|
||||
log.debug("_startSSL_pyOpenSSL called")
|
||||
tcpsock = self._owner.Connection
|
||||
# FIXME: should method be configurable?
|
||||
tcpsock._sslContext = OpenSSL.SSL.Context(OpenSSL.SSL.TLSv1_METHOD)
|
||||
#tcpsock._sslContext = OpenSSL.SSL.Context(OpenSSL.SSL.SSLv23_METHOD)
|
||||
tcpsock.ssl_errnum = 0
|
||||
tcpsock._sslContext.set_verify(OpenSSL.SSL.VERIFY_PEER, self._ssl_verify_callback)
|
||||
cacerts = os.path.join('../data', 'other', 'cacerts.pem')
|
||||
try:
|
||||
tcpsock._sslContext.load_verify_locations(cacerts)
|
||||
except:
|
||||
log.warning('Unable to load SSL certificats from file %s' % \
|
||||
os.path.abspath(cacerts))
|
||||
# load users certs
|
||||
if os.path.isfile('%s/.gajim/cacerts.pem' % os.environ['HOME']):
|
||||
store = tcpsock._sslContext.get_cert_store()
|
||||
f = open('%s/.gajim/cacerts.pem' % os.environ['HOME'])
|
||||
lines = f.readlines()
|
||||
i = 0
|
||||
begin = -1
|
||||
for line in lines:
|
||||
if 'BEGIN CERTIFICATE' in line:
|
||||
begin = i
|
||||
elif 'END CERTIFICATE' in line and begin > -1:
|
||||
cert = ''.join(lines[begin:i+2])
|
||||
try:
|
||||
X509cert = OpenSSL.crypto.load_certificate(
|
||||
OpenSSL.crypto.FILETYPE_PEM, cert)
|
||||
store.add_cert(X509cert)
|
||||
except OpenSSL.crypto.Error, exception_obj:
|
||||
log.warning('Unable to load a certificate from file %s: %s' %\
|
||||
('%s/.gajim/cacerts.pem' % os.environ['HOME'], exception_obj.args[0][0][2]))
|
||||
except:
|
||||
log.warning(
|
||||
'Unknown error while loading certificate from file %s' % \
|
||||
'%s/.gajim/cacerts.pem' % os.environ['HOME'])
|
||||
begin = -1
|
||||
i += 1
|
||||
tcpsock._sslObj = OpenSSL.SSL.Connection(tcpsock._sslContext, tcpsock._sock)
|
||||
tcpsock._sslObj.set_connect_state() # set to client mode
|
||||
|
||||
wrapper = PyOpenSSLWrapper(tcpsock._sslObj)
|
||||
tcpsock._recv = wrapper.recv
|
||||
tcpsock._send = wrapper.send
|
||||
|
||||
log.debug("Initiating handshake...")
|
||||
# FIXME: Figure out why _connect_success is called before the
|
||||
# SSL handshake is completed in STARTTLS mode. See #2838.
|
||||
tcpsock._sslObj.setblocking(True)
|
||||
try:
|
||||
self.starttls='in progress'
|
||||
tcpsock._sslObj.do_handshake()
|
||||
except:
|
||||
log.error('Error while TLS handshake: ', exc_info=True)
|
||||
self.on_tls_failure('Error while TLS Handshake')
|
||||
return
|
||||
tcpsock._sslObj.setblocking(False)
|
||||
log.debug("Synchronous handshake completed")
|
||||
#log.debug("Async handshake started...")
|
||||
|
||||
# fake it, for now
|
||||
self.starttls='success'
|
||||
|
||||
def _startSSL_stdlib(self):
|
||||
log.debug("_startSSL_stdlib called")
|
||||
tcpsock=self._owner.Connection
|
||||
tcpsock._sock.setblocking(True)
|
||||
tcpsock._sslObj = socket.ssl(tcpsock._sock, None, None)
|
||||
tcpsock._sock.setblocking(False)
|
||||
tcpsock._sslIssuer = tcpsock._sslObj.issuer()
|
||||
tcpsock._sslServer = tcpsock._sslObj.server()
|
||||
wrapper = StdlibSSLWrapper(tcpsock._sslObj, tcpsock._sock)
|
||||
tcpsock._recv = wrapper.recv
|
||||
tcpsock._send = wrapper.send
|
||||
self.starttls='success'
|
||||
|
||||
def _ssl_verify_callback(self, sslconn, cert, errnum, depth, ok):
|
||||
# Exceptions can't propagate up through this callback, so print them here.
|
||||
try:
|
||||
self._owner.Connection.ssl_fingerprint_sha1 = cert.digest('sha1')
|
||||
if errnum == 0:
|
||||
return True
|
||||
self._owner.Connection.ssl_errnum = errnum
|
||||
self._owner.Connection.ssl_cert_pem = OpenSSL.crypto.dump_certificate(
|
||||
OpenSSL.crypto.FILETYPE_PEM, cert)
|
||||
return True
|
||||
except:
|
||||
log.error("Exception caught in _ssl_info_callback:", exc_info=True)
|
||||
traceback.print_exc() # Make sure something is printed, even if log is disabled.
|
||||
|
||||
def StartTLSHandler(self, conn, starttls):
|
||||
''' Handle server reply if TLS is allowed to process. Behaves accordingly.
|
||||
Used internally.'''
|
||||
if starttls.getNamespace() <> NS_TLS:
|
||||
self.on_tls_failure('Unknown namespace: %s' % starttls.getNamespace())
|
||||
return
|
||||
self.starttls = starttls.getName()
|
||||
if self.starttls == 'failure':
|
||||
self.on_tls_failure('TLS <failure> received: %s' % self.starttls)
|
||||
return
|
||||
self.DEBUG('Got starttls proceed response. Switching to TLS/SSL...','ok')
|
||||
try:
|
||||
self._startSSL()
|
||||
except Exception, e:
|
||||
log.error("StartTLSHandler:", exc_info=True)
|
||||
self.on_tls_failure('in StartTLSHandler')
|
||||
#traceback.print_exc()
|
||||
return
|
||||
self._owner.Dispatcher.PlugOut()
|
||||
self.on_tls_success()
|
||||
#dispatcher_nb.Dispatcher().PlugIn(self._owner)
|
||||
|
||||
class NBProxySocket(NonBlockingTcp):
|
||||
'''
|
||||
|
|
@ -957,8 +491,10 @@ class NBHTTPProxySocket(NBProxySocket):
|
|||
return
|
||||
if len(reply) != 2:
|
||||
pass
|
||||
self.onreceive(self._on_proxy_auth)
|
||||
|
||||
self.after_proxy_connect()
|
||||
#self.onreceive(self._on_proxy_auth)
|
||||
|
||||
# FIXME: find out what it this method for
|
||||
def _on_proxy_auth(self, reply):
|
||||
if self.reply.find('\n\n') == -1:
|
||||
if reply is None:
|
||||
|
|
@ -1109,3 +645,70 @@ class NBSOCKS5ProxySocket(NBProxySocket):
|
|||
def DEBUG(self, text, severity):
|
||||
''' Overwrites DEBUG tag to allow debug output be presented as "CONNECTproxy".'''
|
||||
return self._owner.DEBUG(DBG_CONNECT_PROXY, text, severity)
|
||||
|
||||
|
||||
|
||||
class NonBlockingHttpBOSH(NonBlockingTcp):
|
||||
'''
|
||||
Socket wrapper that makes HTTP message out of send data and peels-off
|
||||
HTTP headers from incoming messages
|
||||
'''
|
||||
|
||||
def __init__(self, bosh_uri, bosh_port, on_disconnect):
|
||||
self.bosh_protocol, self.bosh_host, self.bosh_path = self.urisplit(bosh_uri)
|
||||
if self.bosh_protocol is None:
|
||||
self.bosh_protocol = 'http'
|
||||
if self.bosh_path == '':
|
||||
bosh_path = '/'
|
||||
self.bosh_port = bosh_port
|
||||
|
||||
def send(self, raw_data, now=False):
|
||||
|
||||
NonBlockingTcp.send(
|
||||
self,
|
||||
self.build_http_message(raw_data),
|
||||
now)
|
||||
|
||||
def _on_receive(self,data):
|
||||
'''Preceeds passing received data to Client class. Gets rid of HTTP headers
|
||||
and checks them.'''
|
||||
statusline, headers, httpbody = self.parse_http_message(data)
|
||||
if statusline[1] != '200':
|
||||
log.error('HTTP Error: %s %s' % (statusline[1], statusline[2]))
|
||||
self.disconnect()
|
||||
self.on_receive(httpbody)
|
||||
|
||||
|
||||
def build_http_message(self, httpbody):
|
||||
'''
|
||||
Builds bosh http message with given body.
|
||||
Values for headers and status line fields are taken from class variables.
|
||||
)
|
||||
'''
|
||||
headers = ['POST %s HTTP/1.1' % self.bosh_path,
|
||||
'Host: %s:%s' % (self.bosh_host, self.bosh_port),
|
||||
'Content-Type: text/xml; charset=utf-8',
|
||||
'Content-Length: %s' % len(str(httpbody)),
|
||||
'\r\n']
|
||||
headers = '\r\n'.join(headers)
|
||||
return('%s%s\r\n' % (headers, httpbody))
|
||||
|
||||
def parse_http_message(self, message):
|
||||
'''
|
||||
splits http message to tuple (
|
||||
statusline - list of e.g. ['HTTP/1.1', '200', 'OK'],
|
||||
headers - dictionary of headers e.g. {'Content-Length': '604',
|
||||
'Content-Type': 'text/xml; charset=utf-8'},
|
||||
httpbody - string with http body
|
||||
)
|
||||
'''
|
||||
message = message.replace('\r','')
|
||||
(header, httpbody) = message.split('\n\n')
|
||||
header = header.split('\n')
|
||||
statusline = header[0].split(' ')
|
||||
header = header[1:]
|
||||
headers = {}
|
||||
for dummy in header:
|
||||
row = dummy.split(' ',1)
|
||||
headers[row[0][:-1]] = row[1]
|
||||
return (statusline, headers, httpbody)
|
||||
|
|
|
|||
Loading…
Reference in New Issue