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authorLance Stout <lancestout@gmail.com>2011-08-06 00:45:18 -0700
committerLance Stout <lancestout@gmail.com>2011-08-06 12:30:56 -0700
commit75f23d11301f09a29db4d0cc185dd5ffdc4a18fe (patch)
tree18d875692584c71539590449e3ab459c94e79882 /sleekxmpp/plugins/xep_0078
parente83fae3a6fed7dd143aa6fed0673ff46340ea953 (diff)
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Fix XEP-0078 using the new stream feature workflow.
Honestly, this is mainly just a demo/proof of concept that we can handle dependencies and ordering issues with stream features. DON'T use XEP-0078 if you are able to use the normal SASL method, which should be the case unless you are dealing with a very old XMPP server implementation.
Diffstat (limited to 'sleekxmpp/plugins/xep_0078')
-rw-r--r--sleekxmpp/plugins/xep_0078/__init__.py12
-rw-r--r--sleekxmpp/plugins/xep_0078/legacyauth.py108
-rw-r--r--sleekxmpp/plugins/xep_0078/stanza.py43
3 files changed, 163 insertions, 0 deletions
diff --git a/sleekxmpp/plugins/xep_0078/__init__.py b/sleekxmpp/plugins/xep_0078/__init__.py
new file mode 100644
index 00000000..5a2bda77
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0078/__init__.py
@@ -0,0 +1,12 @@
+"""
+ SleekXMPP: The Sleek XMPP Library
+ Copyright (C) 2011 Nathanael C. Fritz, Lance J.T. Stout
+ This file is part of SleekXMPP.
+
+ See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.plugins.xep_0078 import stanza
+from sleekxmpp.plugins.xep_0078.stanza import IqAuth, AuthFeature
+from sleekxmpp.plugins.xep_0078.legacyauth import xep_0078
+
diff --git a/sleekxmpp/plugins/xep_0078/legacyauth.py b/sleekxmpp/plugins/xep_0078/legacyauth.py
new file mode 100644
index 00000000..bdd2df67
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0078/legacyauth.py
@@ -0,0 +1,108 @@
+"""
+ 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+ This XEP is OBSOLETE in favor of using SASL, so DO NOT use this plugin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
diff --git a/sleekxmpp/plugins/xep_0078/stanza.py b/sleekxmpp/plugins/xep_0078/stanza.py
new file mode 100644
index 00000000..86ba09ad
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0078/stanza.py
@@ -0,0 +1,43 @@
+"""
+ SleekXMPP: The Sleek XMPP Library
+ Copyright (C) 2011 Nathanael C. Fritz
+ This file is part of SleekXMPP.
+
+ See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.xmlstream import ElementBase, ET, register_stanza_plugin
+
+
+class IqAuth(ElementBase):
+ namespace = 'jabber:iq:auth'
+ name = 'query'
+ plugin_attrib = 'auth'
+ interfaces = set(('fields', 'username', 'password', 'resource', 'digest'))
+ sub_interfaces = set(('username', 'password', 'resource', 'digest'))
+ plugin_tag_map = {}
+ plugin_attrib_map = {}
+
+ def get_fields(self):
+ fields = set()
+ for field in self.sub_interfaces:
+ if self.xml.find('{%s}%s' % (self.namespace, field)) is not None:
+ fields.add(field)
+ return fields
+
+ def set_resource(self, value):
+ self._set_sub_text('resource', value, keep=True)
+
+ def set_password(self, value):
+ self._set_sub_text('password', value, keep=True)
+
+
+class AuthFeature(ElementBase):
+ namespace = 'http://jabber.org/features/iq-auth'
+ name = 'auth'
+ plugin_attrib = 'auth'
+ interfaces = set()
+ plugin_tag_map = {}
+ plugin_attrib_map = {}
+
+