mirror of
https://github.com/correl/SleekXMPP.git
synced 2024-11-23 19:19:53 +00:00
Add support for HTTP Proxy connections.
This commit is contained in:
Lance Stout
parent
ad032e5ed7
commit
e022b2a36c
2 changed files with 240 additions and 2 deletions
167
examples/proxy_echo_client.py
Executable file
167
examples/proxy_echo_client.py
Executable file
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@ -0,0 +1,167 @@
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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SleekXMPP: The Sleek XMPP Library
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Copyright (C) 2010 Nathanael C. Fritz
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This file is part of SleekXMPP.
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See the file LICENSE for copying permission.
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"""
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import sys
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import logging
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import time
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import getpass
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from optparse import OptionParser
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import sleekxmpp
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# Python versions before 3.0 do not use UTF-8 encoding
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# by default. To ensure that Unicode is handled properly
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# throughout SleekXMPP, we will set the default encoding
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# ourselves to UTF-8.
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if sys.version_info < (3, 0):
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reload(sys)
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sys.setdefaultencoding('utf8')
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class EchoBot(sleekxmpp.ClientXMPP):
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"""
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A simple SleekXMPP bot that will echo messages it
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receives, along with a short thank you message.
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"""
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def __init__(self, jid, password):
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sleekxmpp.ClientXMPP.__init__(self, jid, password)
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# The session_start event will be triggered when
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# the bot establishes its connection with the server
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# and the XML streams are ready for use. We want to
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# listen for this event so that we we can intialize
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# our roster.
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self.add_event_handler("session_start", self.start)
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# The message event is triggered whenever a message
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# stanza is received. Be aware that that includes
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# MUC messages and error messages.
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self.add_event_handler("message", self.message)
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def start(self, event):
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"""
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Process the session_start event.
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Typical actions for the session_start event are
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requesting the roster and broadcasting an intial
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presence stanza.
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Arguments:
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event -- An empty dictionary. The session_start
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event does not provide any additional
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data.
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"""
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self.send_presence()
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self.get_roster()
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def message(self, msg):
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"""
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Process incoming message stanzas. Be aware that this also
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includes MUC messages and error messages. It is usually
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a good idea to check the messages's type before processing
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or sending replies.
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Arguments:
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msg -- The received message stanza. See the documentation
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for stanza objects and the Message stanza to see
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how it may be used.
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"""
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msg.reply("Thanks for sending\n%(body)s" % msg).send()
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if __name__ == '__main__':
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# Setup the command line arguments.
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optp = OptionParser()
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# Output verbosity options.
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optp.add_option('-q', '--quiet', help='set logging to ERROR',
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action='store_const', dest='loglevel',
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const=logging.ERROR, default=logging.INFO)
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optp.add_option('-d', '--debug', help='set logging to DEBUG',
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action='store_const', dest='loglevel',
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const=logging.DEBUG, default=logging.INFO)
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optp.add_option('-v', '--verbose', help='set logging to COMM',
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action='store_const', dest='loglevel',
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const=5, default=logging.INFO)
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# JID and password options.
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optp.add_option("-j", "--jid", dest="jid",
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help="JID to use")
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optp.add_option("-p", "--password", dest="password",
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help="password to use")
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optp.add_option("--phost", dest="proxy_host",
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help="Proxy hostname")
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optp.add_option("--pport", dest="proxy_port",
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help="Proxy port")
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optp.add_option("--puser", dest="proxy_user",
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help="Proxy username")
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optp.add_option("--ppass", dest="proxy_pass",
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help="Proxy password")
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opts, args = optp.parse_args()
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# Setup logging.
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logging.basicConfig(level=opts.loglevel,
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format='%(levelname)-8s %(message)s')
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if opts.jid is None:
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opts.jid = raw_input("Username: ")
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if opts.password is None:
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opts.password = getpass.getpass("Password: ")
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if opts.proxy_host is None:
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opts.proxy_host = raw_input("Proxy host: ")
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if opts.proxy_port is None:
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opts.proxy_port = raw_input("Proxy port: ")
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if opts.proxy_user is None:
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opts.proxy_user = raw_input("Proxy username: ")
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if opts.proxy_pass is None and opts.proxy_user:
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opts.proxy_pass = getpass.getpass("Proxy password: ")
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# Setup the EchoBot and register plugins. Note that while plugins may
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# have interdependencies, the order in which you register them does
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# not matter.
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xmpp = EchoBot(opts.jid, opts.password)
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xmpp.register_plugin('xep_0030') # Service Discovery
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xmpp.register_plugin('xep_0004') # Data Forms
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xmpp.register_plugin('xep_0060') # PubSub
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xmpp.register_plugin('xep_0199') # XMPP Ping
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# If you are working with an OpenFire server, you may need
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# to adjust the SSL version used:
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# xmpp.ssl_version = ssl.PROTOCOL_SSLv3
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# If you want to verify the SSL certificates offered by a server:
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# xmpp.ca_certs = "path/to/ca/cert"
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xmpp.use_proxy = True
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xmpp.proxy_config = {
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'host': opts.proxy_host,
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'port': int(opts.proxy_port),
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'username': opts.proxy_user,
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'password': opts.proxy_pass}
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# Connect to the XMPP server and start processing XMPP stanzas.
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if xmpp.connect():
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# If you do not have the pydns library installed, you will need
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# to manually specify the name of the server if it does not match
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# the one in the JID. For example, to use Google Talk you would
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# need to use:
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#
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# if xmpp.connect(('talk.google.com', 5222)):
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# ...
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xmpp.process(threaded=False)
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print("Done")
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else:
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print("Unable to connect.")
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@ -8,6 +8,7 @@
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from __future__ import with_statement, unicode_literals
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import base64
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import copy
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import logging
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import signal
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@ -23,6 +24,7 @@ try:
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except ImportError:
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import Queue as queue
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import sleekxmpp
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from sleekxmpp.thirdparty.statemachine import StateMachine
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from sleekxmpp.xmlstream import Scheduler, tostring
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from sleekxmpp.xmlstream.stanzabase import StanzaBase, ET
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@ -107,7 +109,13 @@ class XMLStream(object):
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stream_header -- The closing tag of the stream's root element.
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use_ssl -- Flag indicating if SSL should be used.
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use_tls -- Flag indicating if TLS should be used.
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use_proxy -- Flag indicating that an HTTP Proxy should be used.
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stop -- threading Event used to stop all threads.
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proxy_config -- An optional dictionary with the following entries:
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host -- The host offering proxy services.
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port -- The port for the proxy service.
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username -- Optional username for the proxy.
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password -- Optional password for the proxy.
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auto_reconnect -- Flag to determine whether we auto reconnect.
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reconnect_max_delay -- Maximum time to delay between connection
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@ -180,6 +188,9 @@ class XMLStream(object):
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self.use_ssl = False
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self.use_tls = False
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self.use_proxy = False
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self.proxy_config = {}
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self.default_ns = ''
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self.stream_header = "<stream>"
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@ -322,6 +333,12 @@ class XMLStream(object):
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log.debug('Waiting %s seconds before connecting.' % delay)
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time.sleep(delay)
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if self.use_proxy:
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connected = self._connect_proxy()
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if not connected:
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self.reconnect_delay = delay
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return False
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if self.use_ssl and self.ssl_support:
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log.debug("Socket Wrapped for SSL")
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if self.ca_certs is None:
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@ -341,8 +358,10 @@ class XMLStream(object):
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self.socket = ssl_socket
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try:
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log.debug("Connecting to %s:%s" % self.address)
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self.socket.connect(self.address)
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if not self.use_proxy:
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log.debug("Connecting to %s:%s" % self.address)
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self.socket.connect(self.address)
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self.set_socket(self.socket, ignore=True)
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#this event is where you should set your application state
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self.event("connected", direct=True)
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@ -356,6 +375,58 @@ class XMLStream(object):
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self.reconnect_delay = delay
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return False
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def _connect_proxy(self):
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"""Attempt to connect using an HTTP Proxy."""
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# Extract the proxy address, and optional credentials
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address = (self.proxy_config['host'], int(self.proxy_config['port']))
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cred = None
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if self.proxy_config['username']:
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username = self.proxy_config['username']
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password = self.proxy_config['password']
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cred = '%s:%s' % (username, password)
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if sys.version_info < (3, 0):
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cred = bytes(cred)
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else:
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cred = bytes(cred, 'utf-8')
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cred = base64.b64encode(cred).decode('utf-8')
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# Build the HTTP headers for connecting to the XMPP server
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headers = ['CONNECT %s:%s HTTP/1.0' % self.address,
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'Host: %s:%s' % self.address,
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'Proxy-Connection: Keep-Alive',
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'Pragma: no-cache',
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'User-Agent: SleekXMPP/%s' % sleekxmpp.__version__]
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if cred:
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headers.append('Proxy-Authorization: Basic %s' % cred)
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headers = '\r\n'.join(headers) + '\r\n\r\n'
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try:
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log.debug("Connecting to proxy: %s:%s" % address)
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self.socket.connect(address)
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self.send_raw(headers, now=True)
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resp = ''
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while '\r\n\r\n' not in resp:
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resp += self.socket.recv(1024).decode('utf-8')
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log.debug('RECV: %s' % resp)
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lines = resp.split('\r\n')
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if '200' not in lines[0]:
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self.event('proxy_error', resp)
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log.error('Proxy Error: %s' % lines[0])
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return False
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# Proxy connection established, continue connecting
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# with the XMPP server.
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return True
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except Socket.error as serr:
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error_msg = "Could not connect to %s:%s. Socket Error #%s: %s"
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self.event('socket_error', serr)
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log.error(error_msg % (self.address[0], self.address[1],
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serr.errno, serr.strerror))
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return False
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def disconnect(self, reconnect=False, wait=False):
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"""
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Terminate processing and close the XML streams.
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