mirror of
https://github.com/correl/SleekXMPP.git
synced 2024-11-27 19:19:54 +00:00
Made first pass at cleaning up ClientXMPP.
Added self.stream_ns to BaseXMPP. Moved connected/disconnected events and logging to XMLStream.
This commit is contained in:
Lance Stout
parent
a7410f2146
commit
e1866ab328
4 changed files with 358 additions and 217 deletions
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@ -1,5 +1,3 @@
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#!/usr/bin/env python
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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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@ -7,245 +5,384 @@
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See the file LICENSE for copying permission.
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"""
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from __future__ import absolute_import, unicode_literals
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from . basexmpp import BaseXMPP, basexmpp
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from xml.etree import cElementTree as ET
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from . xmlstream.xmlstream import XMLStream
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from . xmlstream.xmlstream import RestartStream
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from . xmlstream.matcher.xmlmask import MatchXMLMask
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from . xmlstream.matcher.xpath import MatchXPath
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from . xmlstream.matcher.many import MatchMany
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from . xmlstream.handler.callback import Callback
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from . xmlstream.stanzabase import StanzaBase
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from . xmlstream import xmlstream as xmlstreammod
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from . stanza.message import Message
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from . stanza.iq import Iq
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import time
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import logging
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import base64
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import sys
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import hashlib
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import random
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import copy
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from . import plugins
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#from . import stanza
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srvsupport = True
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from sleekxmpp import plugins
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from sleekxmpp import stanza
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from sleekxmpp.basexmpp import BaseXMPP
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from sleekxmpp.stanza import Message, Presence, Iq
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from sleekxmpp.xmlstream import XMLStream, RestartStream
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from sleekxmpp.xmlstream.matcher import *
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from sleekxmpp.xmlstream.handler import *
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from sleekxmpp.xmlstream.stanzabase import StanzaBase, ET
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# Flag indicating if DNS SRV records are available for use.
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SRV_SUPPORT = True
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try:
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import dns.resolver
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except ImportError:
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srvsupport = False
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#class PresenceStanzaType(object):
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#
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# def fromXML(self, xml):
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# self.ptype = xml.get('type')
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import dns.resolver
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except:
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SRV_SUPPORT = False
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class ClientXMPP(BaseXMPP):
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"""SleekXMPP's client class. Use only for good, not evil."""
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def __init__(self, jid, password, ssl=False, plugin_config = {}, plugin_whitelist=[], escape_quotes=True):
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BaseXMPP.__init__(self, 'jabber:client')
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global srvsupport
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self.default_ns = 'jabber:client'
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self.plugin_config = plugin_config
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self.escape_quotes = escape_quotes
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self.set_jid(jid)
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self.plugin_whitelist = plugin_whitelist
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self.auto_reconnect = True
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self.srvsupport = srvsupport
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self.password = password
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self.registered_features = []
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self.stream_header = """<stream:stream to='%s' xmlns:stream='http://etherx.jabber.org/streams' xmlns='%s' version='1.0'>""" % (self.server,self.default_ns)
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self.stream_footer = "</stream:stream>"
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#self.map_namespace('http://etherx.jabber.org/streams', 'stream')
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#self.map_namespace('jabber:client', '')
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self.features = []
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#TODO: Use stream state here
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self.authenticated = False
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self.sessionstarted = False
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self.bound = False
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self.bindfail = False
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self.is_component = False
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self.registerHandler(Callback('Stream Features', MatchXPath('{http://etherx.jabber.org/streams}features'), self._handleStreamFeatures))
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self.registerHandler(Callback('Roster Update', MatchXPath('{%s}iq/{jabber:iq:roster}query' % self.default_ns), self._handleRoster))
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#self.registerHandler(Callback('Roster Update', MatchXMLMask("<presence xmlns='%s' type='subscribe' />" % self.default_ns), self._handlePresenceSubscribe, thread=True))
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self.registerFeature("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls' />", self.handler_starttls, True)
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self.registerFeature("<mechanisms xmlns='urn:ietf:params:xml:ns:xmpp-sasl' />", self.handler_sasl_auth, True)
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self.registerFeature("<bind xmlns='urn:ietf:params:xml:ns:xmpp-bind' />", self.handler_bind_resource)
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self.registerFeature("<session xmlns='urn:ietf:params:xml:ns:xmpp-session' />", self.handler_start_session)
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"""
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SleekXMPP's client class.
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#self.registerStanzaExtension('PresenceStanza', PresenceStanzaType)
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#self.register_plugins()
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Use only for good, not for evil.
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def connect(self, address=tuple()):
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"""Connect to the Jabber Server. Attempts SRV lookup, and if it fails, uses
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the JID server."""
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if not address or len(address) < 2:
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if not self.srvsupport:
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logging.debug("Did not supply (address, port) to connect to and no SRV support is installed (http://www.dnspython.org). Continuing to attempt connection, using server hostname from JID.")
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else:
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logging.debug("Since no address is supplied, attempting SRV lookup.")
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try:
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answers = dns.resolver.query("_xmpp-client._tcp.%s" % self.server, dns.rdatatype.SRV)
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except dns.resolver.NXDOMAIN:
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logging.debug("No appropriate SRV record found. Using JID server name.")
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else:
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# pick a random answer, weighted by priority
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# there are less verbose ways of doing this (random.choice() with answer * priority), but I chose this way anyway
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# suggestions are welcome
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addresses = {}
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intmax = 0
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priorities = []
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for answer in answers:
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intmax += answer.priority
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addresses[intmax] = (answer.target.to_text()[:-1], answer.port)
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priorities.append(intmax) # sure, I could just do priorities = addresses.keys()\n priorities.sort()
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picked = random.randint(0, intmax)
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for priority in priorities:
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if picked <= priority:
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address = addresses[priority]
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break
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if not address:
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# if all else fails take server from JID.
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address = (self.server, 5222)
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result = XMLStream.connect(self, address[0], address[1], use_tls=True)
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if result:
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self.event("connected")
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Attributes:
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Methods:
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connect -- Overrides XMLStream.connect.
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del_roster_item -- Delete a roster item.
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get_roster -- Retrieve the roster from the server.
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register_feature -- Register a stream feature.
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update_roster -- Update a roster item.
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"""
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def __init__(self, jid, password, ssl=False, plugin_config={},
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plugin_whitelist=[], escape_quotes=True):
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"""
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Create a new SleekXMPP client.
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Arguments:
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jid -- The JID of the XMPP user account.
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password -- The password for the XMPP user account.
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ssl -- Deprecated.
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plugin_config -- A dictionary of plugin configurations.
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plugin_whitelist -- A list of approved plugins that will be loaded
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when calling register_plugins.
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escape_quotes -- Deprecated.
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"""
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BaseXMPP.__init__(self, 'jabber:client')
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# To comply with PEP8, method names now use underscores.
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# Deprecated method names are re-mapped for backwards compatibility.
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self.updateRoster = self.update_roster
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self.delRosterItem = self.del_roster_item
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self.getRoster = self.get_roster
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self.registerFeature = self.register_feature
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self.set_jid(jid)
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self.password = password
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self.escape_quotes = escape_quotes
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self.plugin_config = plugin_config
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self.plugin_whitelist = plugin_whitelist
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self.srv_support = SRV_SUPPORT
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self.stream_header = "<stream:stream to='%s' %s %s version='1.0'>" % (
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self.server,
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"xmlns:stream='%s'" % self.stream_ns,
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"xmlns='%s'" % self.default_ns)
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self.stream_footer = "</stream:stream>"
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self.features = []
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self.registered_features = []
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#TODO: Use stream state here
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self.authenticated = False
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self.sessionstarted = False
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self.bound = False
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self.bindfail = False
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self.registerHandler(
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Callback('Stream Features',
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MatchXPath('{%s}features' % self.stream_ns),
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self._handle_stream_features))
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self.registerHandler(
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Callback('Roster Update',
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MatchXPath('{%s}iq/{%s}query' % (
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self.default_ns,
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'jabber:iq:roster')),
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self._handle_roster))
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self.registerFeature(
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"<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls' />",
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self._handle_starttls, True)
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self.registerFeature(
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"<mechanisms xmlns='urn:ietf:params:xml:ns:xmpp-sasl' />",
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self._handle_sasl_auth, True)
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self.registerFeature(
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"<bind xmlns='urn:ietf:params:xml:ns:xmpp-bind' />",
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self._handle_bind_resource)
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self.registerFeature(
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"<session xmlns='urn:ietf:params:xml:ns:xmpp-session' />",
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self._handle_start_session)
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def connect(self, address=tuple()):
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"""
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Connect to the XMPP server.
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When no address is given, a SRV lookup for the server will
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be attempted. If that fails, the server user in the JID
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will be used.
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Arguments:
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address -- A tuple containing the server's host and port.
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"""
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if not address or len(address) < 2:
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if not self.srv_support:
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logging.debug("Did not supply (address, port) to connect" + \
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" to and no SRV support is installed" + \
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" (http://www.dnspython.org)." + \
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" Continuing to attempt connection, using" + \
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" server hostname from JID.")
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else:
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logging.debug("Since no address is supplied," + \
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"attempting SRV lookup.")
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try:
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xmpp_srv = "_xmpp-client._tcp.%s" % self.server
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answers = dns.resolver.query(xmpp_srv, dns.rdatatype.SRV)
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except dns.resolver.NXDOMAIN:
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logging.debug("No appropriate SRV record found." + \
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" Using JID server name.")
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else:
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logging.warning("Failed to connect")
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self.event("disconnected")
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return result
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# Pick a random server, weighted by priority.
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# overriding reconnect and disconnect so that we can get some events
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# should events be part of or required by xmlstream? Maybe that would be cleaner
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def reconnect(self):
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logging.info("Reconnecting")
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self.event("disconnected")
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XMLStream.reconnect(self)
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addresses = {}
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intmax = 0
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for answer in answers:
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intmax += answer.priority
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addresses[intmax] = (answer.target.to_text()[:-1],
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answer.port)
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priorities = addresses.keys()
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priorities.sort()
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def disconnect(self, init=True, close=False, reconnect=False):
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self.event("disconnected")
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XMLStream.disconnect(self, reconnect)
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picked = random.randint(0, intmax)
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for priority in priorities:
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if picked <= priority:
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address = addresses[priority]
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break
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def registerFeature(self, mask, pointer, breaker = False):
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"""Register a stream feature."""
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self.registered_features.append((MatchXMLMask(mask), pointer, breaker))
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if not address:
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# If all else fails, use the server from the JID.
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address = (self.server, 5222)
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def updateRoster(self, jid, name=None, subscription=None, groups=[]):
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"""Add or change a roster item."""
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iq = self.Iq().setStanzaValues({'type': 'set'})
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iq['roster']['items'] = {jid: {'name': name, 'subscription': subscription, 'groups': groups}}
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#self.send(iq, self.Iq().setValues({'id': iq['id']}))
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r = iq.send()
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return r['type'] == 'result'
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return XMLStream.connect(self, address[0], address[1], use_tls=True)
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def delRosterItem(self, jid):
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iq = self.Iq()
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iq['type'] = 'set'
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iq['roster']['items'] = {jid: {'subscription': 'remove'}}
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return iq.send()['type'] == 'result'
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def register_feature(self, mask, pointer, breaker=False):
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"""
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Register a stream feature.
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def getRoster(self):
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"""Request the roster be sent."""
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iq = self.Iq().setStanzaValues({'type': 'get'}).enable('roster').send()
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self._handleRoster(iq, request=True)
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Arguments:
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mask -- An XML string matching the feature's element.
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pointer -- The function to execute if the feature is received.
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breaker -- Indicates if feature processing should halt with
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this feature. Defaults to False.
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"""
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self.registered_features.append((MatchXMLMask(mask),
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pointer,
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breaker))
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def _handleStreamFeatures(self, features):
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self.features = []
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for sub in features.xml:
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self.features.append(sub.tag)
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for subelement in features.xml:
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for feature in self.registered_features:
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if feature[0].match(subelement):
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#if self.maskcmp(subelement, feature[0], True):
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if feature[1](subelement) and feature[2]: #if breaker, don't continue
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return True
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def update_roster(self, jid, name=None, subscription=None, groups=[]):
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"""
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Add or change a roster item.
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def handler_starttls(self, xml):
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if not self.authenticated and self.ssl_support:
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self.add_handler("<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls' />", self.handler_tls_start, name='TLS Proceed', instream=True)
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self.sendXML(xml)
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Arguments:
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jid -- The JID of the entry to modify.
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name -- The user's nickname for this JID.
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subscription -- The subscription status. May be one of
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'to', 'from', 'both', or 'none'. If set
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to 'remove', the entry will be deleted.
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groups -- The roster groups that contain this item.
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"""
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iq = self.Iq().setStanzaValues({'type': 'set'})
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iq['roster']['items'] = {jid: {'name': name,
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'subscription': subscription,
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'groups': groups}}
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resp = iq.send()
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return resp['type'] == 'result'
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def del_roster_item(self, jid):
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"""
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Remove an item from the roster by setting its subscription
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status to 'remove'.
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Arguments:
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jid -- The JID of the item to remove.
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"""
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return self.update_roster(jid, subscription='remove')
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def get_roster(self):
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"""Request the roster from the server."""
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iq = self.Iq().setStanzaValues({'type': 'get'}).enable('roster')
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iq.send()
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self._handle_roster(iq, request=True)
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def _handle_stream_features(self, features):
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"""
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Process the received stream features.
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Arguments:
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features -- The features stanza.
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"""
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# Record all of the features.
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self.features = []
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for sub in features.xml:
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self.features.append(sub.tag)
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# Process the features.
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for sub in features.xml:
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for feature in self.registered_features:
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mask, handler, halt = feature
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if mask.match(sub):
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if handler(sub) and halt:
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# Don't continue if the feature was
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# marked as a breaker.
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return True
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def _handle_starttls(self, xml):
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if not self.authenticated and self.ssl_support:
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tls_ns = 'urn:ietf:params:xml:ns:xmpp-tls'
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self.add_handler("<proceed xmlns='%s' />" % tls_ns,
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self._handle_tls_start,
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name='TLS Proceed',
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instream=True)
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self.send_xml(xml)
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return True
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else:
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logging.warning("The module tlslite is required to log in" +\
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" to some servers, and has not been found.")
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return False
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def _handle_tls_start(self, xml):
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logging.debug("Starting TLS")
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if self.start_tls():
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raise RestartStream()
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def _handle_sasl_auth(self, xml):
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if '{urn:ietf:params:xml:ns:xmpp-tls}starttls' in self.features:
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return False
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logging.debug("Starting SASL Auth")
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sasl_ns = 'urn:ietf:params:xml:ns:xmpp-sasl'
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self.add_handler("<success xmlns='%s' />" % sasl_ns,
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self._handle_auth_success,
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name='SASL Sucess',
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instream=True)
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self.add_handler("<failure xmlns='%s' />" % sasl_ns,
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self._handle_auth_fail,
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name='SASL Failure',
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instream=True)
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sasl_mechs = xml.findall('{%s}mechanism' % sasl_ns)
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if sasl_mechs:
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for sasl_mech in sasl_mechs:
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self.features.append("sasl:%s" % sasl_mech.text)
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if 'sasl:PLAIN' in self.features:
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if sys.version_info < (3, 0):
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user = bytes(self.username)
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password = bytes(self.password)
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else:
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logging.warning("The module tlslite is required in to some servers, and has not been found.")
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return False
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user = bytes(self.username, 'utf-8')
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password = bytes(self.password, 'utf-8')
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def handler_tls_start(self, xml):
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logging.debug("Starting TLS")
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if self.startTLS():
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raise RestartStream()
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auth = base64.b64encode(b'\x00' + user + \
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b'\x00' + password).decode('utf-8')
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def handler_sasl_auth(self, xml):
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if '{urn:ietf:params:xml:ns:xmpp-tls}starttls' in self.features:
|
||||
return False
|
||||
logging.debug("Starting SASL Auth")
|
||||
self.add_handler("<success xmlns='urn:ietf:params:xml:ns:xmpp-sasl' />", self.handler_auth_success, name='SASL Sucess', instream=True)
|
||||
self.add_handler("<failure xmlns='urn:ietf:params:xml:ns:xmpp-sasl' />", self.handler_auth_fail, name='SASL Failure', instream=True)
|
||||
sasl_mechs = xml.findall('{urn:ietf:params:xml:ns:xmpp-sasl}mechanism')
|
||||
if len(sasl_mechs):
|
||||
for sasl_mech in sasl_mechs:
|
||||
self.features.append("sasl:%s" % sasl_mech.text)
|
||||
if 'sasl:PLAIN' in self.features:
|
||||
if sys.version_info < (3,0):
|
||||
self.send("""<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>%s</auth>""" % base64.b64encode(b'\x00' + bytes(self.username) + b'\x00' + bytes(self.password)).decode('utf-8'))
|
||||
else:
|
||||
self.send("""<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>%s</auth>""" % base64.b64encode(b'\x00' + bytes(self.username, 'utf-8') + b'\x00' + bytes(self.password, 'utf-8')).decode('utf-8'))
|
||||
else:
|
||||
logging.error("No appropriate login method.")
|
||||
self.disconnect()
|
||||
#if 'sasl:DIGEST-MD5' in self.features:
|
||||
# self._auth_digestmd5()
|
||||
return True
|
||||
|
||||
def handler_auth_success(self, xml):
|
||||
self.authenticated = True
|
||||
self.features = []
|
||||
raise RestartStream()
|
||||
|
||||
def handler_auth_fail(self, xml):
|
||||
logging.info("Authentication failed.")
|
||||
self.send("<auth xmlns='%s' mechanism='PLAIN'>%s</auth>" % (
|
||||
sasl_ns,
|
||||
auth))
|
||||
else:
|
||||
logging.error("No appropriate login method.")
|
||||
self.disconnect()
|
||||
self.event("failed_auth")
|
||||
return True
|
||||
|
||||
def handler_bind_resource(self, xml):
|
||||
logging.debug("Requesting resource: %s" % self.resource)
|
||||
xml.clear()
|
||||
iq = self.Iq(stype='set')
|
||||
if self.resource:
|
||||
res = ET.Element('resource')
|
||||
res.text = self.resource
|
||||
xml.append(res)
|
||||
iq.append(xml)
|
||||
response = iq.send()
|
||||
#response = self.send(iq, self.Iq(sid=iq['id']))
|
||||
self.set_jid(response.xml.find('{urn:ietf:params:xml:ns:xmpp-bind}bind/{urn:ietf:params:xml:ns:xmpp-bind}jid').text)
|
||||
self.bound = True
|
||||
logging.info("Node set to: %s" % self.fulljid)
|
||||
if "{urn:ietf:params:xml:ns:xmpp-session}session" not in self.features or self.bindfail:
|
||||
logging.debug("Established Session")
|
||||
self.sessionstarted = True
|
||||
self.event("session_start")
|
||||
def _handle_auth_success(self, xml):
|
||||
"""
|
||||
SASL authentication succeeded. Restart the stream.
|
||||
|
||||
def handler_start_session(self, xml):
|
||||
if self.authenticated and self.bound:
|
||||
iq = self.makeIqSet(xml)
|
||||
response = iq.send()
|
||||
logging.debug("Established Session")
|
||||
self.sessionstarted = True
|
||||
self.event("session_start")
|
||||
else:
|
||||
#bind probably hasn't happened yet
|
||||
self.bindfail = True
|
||||
Arguments:
|
||||
xml -- The SASL authentication success element.
|
||||
"""
|
||||
self.authenticated = True
|
||||
self.features = []
|
||||
raise RestartStream()
|
||||
|
||||
def _handleRoster(self, iq, request=False):
|
||||
if iq['type'] == 'set' or (iq['type'] == 'result' and request):
|
||||
for jid in iq['roster']['items']:
|
||||
if not jid in self.roster:
|
||||
self.roster[jid] = {'groups': [], 'name': '', 'subscription': 'none', 'presence': {}, 'in_roster': True}
|
||||
self.roster[jid].update(iq['roster']['items'][jid])
|
||||
if iq['type'] == 'set':
|
||||
self.send(self.Iq().setStanzaValues({'type': 'result', 'id': iq['id']}).enable('roster'))
|
||||
self.event("roster_update", iq)
|
||||
def _handle_auth_fail(self, xml):
|
||||
"""
|
||||
SASL authentication failed. Disconnect and shutdown.
|
||||
|
||||
Arguments:
|
||||
xml -- The SASL authentication failure element.
|
||||
"""
|
||||
logging.info("Authentication failed.")
|
||||
self.disconnect()
|
||||
self.event("failed_auth")
|
||||
|
||||
def _handle_bind_resource(self, xml):
|
||||
"""
|
||||
Handle requesting a specific resource.
|
||||
|
||||
Arguments:
|
||||
xml -- The bind feature element.
|
||||
"""
|
||||
logging.debug("Requesting resource: %s" % self.resource)
|
||||
xml.clear()
|
||||
iq = self.Iq(stype='set')
|
||||
if self.resource:
|
||||
res = ET.Element('resource')
|
||||
res.text = self.resource
|
||||
xml.append(res)
|
||||
iq.append(xml)
|
||||
response = iq.send()
|
||||
|
||||
bind_ns = 'urn:ietf:params:xml:ns:xmpp-bind'
|
||||
self.set_jid(response.xml.find('{%s}bind/{%s}jid' % (bind_ns,
|
||||
bind_ns)).text)
|
||||
self.bound = True
|
||||
logging.info("Node set to: %s" % self.fulljid)
|
||||
session_ns = 'urn:ietf:params:xml:ns:xmpp-session'
|
||||
if "{%s}session" % session_ns not in self.features or self.bindfail:
|
||||
logging.debug("Established Session")
|
||||
self.sessionstarted = True
|
||||
self.event("session_start")
|
||||
|
||||
def _handle_start_session(self, xml):
|
||||
"""
|
||||
Handle the start of the session.
|
||||
|
||||
Arguments:
|
||||
xml -- The session feature element.
|
||||
"""
|
||||
if self.authenticated and self.bound:
|
||||
iq = self.makeIqSet(xml)
|
||||
response = iq.send()
|
||||
logging.debug("Established Session")
|
||||
self.sessionstarted = True
|
||||
self.event("session_start")
|
||||
else:
|
||||
# Bind probably hasn't happened yet.
|
||||
self.bindfail = True
|
||||
|
||||
def _handle_roster(self, iq, request=False):
|
||||
"""
|
||||
Update the roster after receiving a roster stanza.
|
||||
|
||||
Arguments:
|
||||
iq -- The roster stanza.
|
||||
request -- Indicates if this stanza is a response
|
||||
to a request for the roster.
|
||||
"""
|
||||
if iq['type'] == 'set' or (iq['type'] == 'result' and request):
|
||||
for jid in iq['roster']['items']:
|
||||
if not jid in self.roster:
|
||||
self.roster[jid] = {'groups': [],
|
||||
'name': '',
|
||||
'subscription': 'none',
|
||||
'presence': {},
|
||||
'in_roster': True}
|
||||
self.roster[jid].update(iq['roster']['items'][jid])
|
||||
|
||||
self.event("roster_update", iq)
|
||||
if iq['type'] == 'set':
|
||||
iq.reply()
|
||||
iq.enable('roster')
|
||||
iq.send()
|
||||
|
|
|
|||
|
|
@ -111,6 +111,7 @@ class BaseXMPP(XMLStream):
|
|||
self.sendPresenceSubscription = self.send_presence_subscription
|
||||
|
||||
self.default_ns = default_ns
|
||||
self.stream_ns = 'http://etherx.jabber.org/streams'
|
||||
|
||||
self.jid = ''
|
||||
self.fulljid = ''
|
||||
|
|
|
|||
|
|
@ -60,7 +60,7 @@ class ComponentXMPP(BaseXMPP):
|
|||
self.auto_authorize = None
|
||||
self.stream_header = "<stream:stream %s %s to='%s'>" % (
|
||||
'xmlns="jabber:component:accept"',
|
||||
'xmlns:stream="http://etherx.jabber.org/streams"',
|
||||
'xmlns:stream="%s"' % self.stream_ns,
|
||||
jid)
|
||||
self.stream_footer = "</stream:stream>"
|
||||
self.server_host = host
|
||||
|
|
|
|||
|
|
@ -269,6 +269,7 @@ class XMLStream(object):
|
|||
and processing should be restarted.
|
||||
Defaults to False.
|
||||
"""
|
||||
self.event("disconnected")
|
||||
self.state.set('reconnect', reconnect)
|
||||
if self.state['disconnecting']:
|
||||
return
|
||||
|
|
@ -294,6 +295,8 @@ class XMLStream(object):
|
|||
"""
|
||||
Reset the stream's state and reconnect to the server.
|
||||
"""
|
||||
logging.info("Reconnecting")
|
||||
self.event("disconnected")
|
||||
self.state.set('tls', False)
|
||||
self.state.set('ssl', False)
|
||||
time.sleep(1)
|
||||
|
|
|
|||
Loading…
Reference in a new issue