diff options
Diffstat (limited to 'sleekxmpp/plugins/xep_0078')
| -rw-r--r-- | sleekxmpp/plugins/xep_0078/__init__.py | 12 | ||||
| -rw-r--r-- | sleekxmpp/plugins/xep_0078/legacyauth.py | 119 | ||||
| -rw-r--r-- | sleekxmpp/plugins/xep_0078/stanza.py | 43 |
3 files changed, 174 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..dec775a3 --- /dev/null +++ b/sleekxmpp/plugins/xep_0078/legacyauth.py @@ -0,0 +1,119 @@ +""" + 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= logging.getLogger(__name__) + + +class xep_0078(base_plugin): + + """ + XEP-0078 NON-SASL Authentication + + This XEP is OBSOLETE in favor of using SASL, so DO NOT use this plugin + unless you are forced to use an old XMPP server implementation.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 + + try: + resp = iq.send(now=True) + except IqError: + log.info("Authentication failed: %s", resp['error']['condition']) + self.xmpp.event('failed_auth', direct=True) + self.xmpp.disconnect() + return True + except IqTimeout: + log.info("Authentication failed: %s", 'timeout') + self.xmpp.event('failed_auth', 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 + try: + result = iq.send(now=True) + except IqError as err: + log.info("Authentication failed") + self.xmpp.disconnect() + self.xmpp.event("failed_auth", direct=True) + except IqTimeout: + log.info("Authentication failed") + self.xmpp.disconnect() + self.xmpp.event("failed_auth", direct=True) + + 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') + + 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 = {} + + |