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authorLance Stout <lancestout@gmail.com>2011-08-12 16:47:58 -0700
committerLance Stout <lancestout@gmail.com>2011-08-12 16:47:58 -0700
commit484efff156e344fc3ca1a7377539132b702c0c78 (patch)
treefa051515b9dc15eb3a5ab1a8e8b9c2e25b920d17 /sleekxmpp/plugins/xep_0078/legacyauth.py
parent89cffd43f48cfc835b70e137776eb8c2e73a0b67 (diff)
parent8f1d0e7a79b662e5f2849cea6e73716cc887e226 (diff)
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Merge branch 'develop' into roster
Conflicts: setup.py sleekxmpp/clientxmpp.py
Diffstat (limited to 'sleekxmpp/plugins/xep_0078/legacyauth.py')
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diff --git a/sleekxmpp/plugins/xep_0078/legacyauth.py b/sleekxmpp/plugins/xep_0078/legacyauth.py
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+"""
+ SleekXMPP: The Sleek XMPP Library
+ Copyright (C) 2011 Nathanael C. Fritz
+ This file is part of SleekXMPP.
+
+ See the file LICENSE for copying permission.
+"""
+
+import logging
+import hashlib
+import random
+
+from sleekxmpp.stanza import Iq, StreamFeatures
+from sleekxmpp.xmlstream import ElementBase, ET, register_stanza_plugin
+from sleekxmpp.plugins.base import base_plugin
+from sleekxmpp.plugins.xep_0078 import stanza
+
+
+log = logging.getLogger(__name__)
+
+
+class xep_0078(base_plugin):
+
+ """
+ XEP-0078 NON-SASL Authentication
+
+ This XEP is OBSOLETE in favor of using SASL, so DO NOT use this plugin
+ unless you are forced to use an old XMPP server implementation.
+ """
+
+ def plugin_init(self):
+ self.xep = "0078"
+ self.description = "Non-SASL Authentication"
+ self.stanza = stanza
+
+ self.xmpp.register_feature('auth',
+ self._handle_auth,
+ restart=False,
+ order=self.config.get('order', 15))
+
+ register_stanza_plugin(Iq, stanza.IqAuth)
+ register_stanza_plugin(StreamFeatures, stanza.AuthFeature)
+
+
+ def _handle_auth(self, features):
+ # If we can or have already authenticated with SASL, do nothing.
+ if 'mechanisms' in features['features']:
+ return False
+ if self.xmpp.authenticated:
+ return False
+
+ log.debug("Starting jabber:iq:auth Authentication")
+
+ # Step 1: Request the auth form
+ iq = self.xmpp.Iq()
+ iq['type'] = 'get'
+ iq['to'] = self.xmpp.boundjid.host
+ iq['auth']['username'] = self.xmpp.boundjid.user
+ resp = iq.send(now=True)
+
+ if resp is None or resp['type'] != 'result':
+ log.info("Authentication failed: %s" % resp['error']['condition'])
+ self.xmpp.event('failed_auth', resp, direct=True)
+ self.xmpp.disconnect()
+ return True
+
+ # Step 2: Fill out auth form for either password or digest auth
+ iq = self.xmpp.Iq()
+ iq['type'] = 'set'
+ iq['auth']['username'] = self.xmpp.boundjid.user
+
+ # A resource is required, so create a random one if necessary
+ if self.xmpp.boundjid.resource:
+ iq['auth']['resource'] = self.xmpp.boundjid.resource
+ else:
+ iq['auth']['resource'] = '%s' % random.random()
+
+ if 'digest' in resp['auth']['fields']:
+ log.debug('Authenticating via jabber:iq:auth Digest')
+ if sys.version_info < (3, 0):
+ stream_id = bytes(self.xmpp.stream_id)
+ password = bytes(self.xmpp.password)
+ else:
+ stream_id = bytes(self.xmpp.stream_id, encoding='utf-8')
+ password = bytes(self.xmpp.password, encoding='utf-8')
+
+ digest = hashlib.sha1(b'%s%s' % (stream_id, password)).hexdigest()
+ iq['auth']['digest'] = digest
+ else:
+ log.warning('Authenticating via jabber:iq:auth Plain.')
+ iq['auth']['password'] = self.xmpp.password
+
+ # Step 3: Send credentials
+ result = iq.send(now=True)
+ if result is not None and result.attrib['type'] == 'result':
+ self.xmpp.features.add('auth')
+
+ self.xmpp.authenticated = True
+ log.debug("Established Session")
+ self.xmpp.sessionstarted = True
+ self.xmpp.session_started_event.set()
+ self.xmpp.event('session_start')
+ else:
+ log.info("Authentication failed")
+ self.xmpp.disconnect()
+ self.xmpp.event("failed_auth")
+
+ return True