diff --git a/slixmpp/plugins/xep_0045/__init__.py b/slixmpp/plugins/xep_0045/__init__.py index e3437b8f..75da0ca2 100644 --- a/slixmpp/plugins/xep_0045/__init__.py +++ b/slixmpp/plugins/xep_0045/__init__.py @@ -1,334 +1,14 @@ """ Slixmpp: The Slick XMPP Library - Copyright (C) 2010 Nathanael C. Fritz + Copyright (C) 2020 "Maxime “pep” Buquet " This file is part of Slixmpp. See the file LICENSE for copying permission. """ -import logging - -from slixmpp import Presence, Message -from slixmpp.plugins import BasePlugin, register_plugin -from slixmpp.xmlstream import register_stanza_plugin, ElementBase, JID, ET -from slixmpp.xmlstream.handler.callback import Callback -from slixmpp.xmlstream.matcher.xpath import MatchXPath -from slixmpp.xmlstream.matcher.xmlmask import MatchXMLMask -from slixmpp.exceptions import IqError, IqTimeout +from slixmpp.plugins import register_plugin +from slixmpp.plugins.xep_0045 import stanza +from slixmpp.plugins.xep_0045.muc import XEP_0045 from slixmpp.plugins.xep_0045.stanza import MUCPresence - -log = logging.getLogger(__name__) - - -class XEP_0045(BasePlugin): - - """ - Implements XEP-0045 Multi-User Chat - """ - - name = 'xep_0045' - description = 'XEP-0045: Multi-User Chat' - dependencies = {'xep_0030', 'xep_0004'} - - def plugin_init(self): - self.rooms = {} - self.our_nicks = {} - self.xep = '0045' - # load MUC support in presence stanzas - register_stanza_plugin(Presence, MUCPresence) - self.xmpp.register_handler(Callback('MUCPresence', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_presence)) - self.xmpp.register_handler(Callback('MUCError', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_error_message)) - self.xmpp.register_handler(Callback('MUCMessage', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_message)) - self.xmpp.register_handler(Callback('MUCSubject', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_subject)) - self.xmpp.register_handler(Callback('MUCConfig', MatchXMLMask("" % self.xmpp.default_ns), self.handle_config_change)) - self.xmpp.register_handler(Callback('MUCInvite', MatchXPath("{%s}message/{%s}x/{%s}invite" % ( - self.xmpp.default_ns, - 'http://jabber.org/protocol/muc#user', - 'http://jabber.org/protocol/muc#user')), self.handle_groupchat_invite)) - - def plugin_end(self): - self.xmpp.plugin['xep_0030'].del_feature(feature='http://jabber.org/protocol/muc') - - def session_bind(self, jid): - self.xmpp.plugin['xep_0030'].add_feature('http://jabber.org/protocol/muc') - - def handle_groupchat_invite(self, inv): - """ Handle an invite into a muc. - """ - logging.debug("MUC invite to %s from %s: %s", inv['to'], inv["from"], inv) - if inv['from'] not in self.rooms.keys(): - self.xmpp.event("groupchat_invite", inv) - - def handle_config_change(self, msg): - """Handle a MUC configuration change (with status code).""" - self.xmpp.event('groupchat_config_status', msg) - self.xmpp.event('muc::%s::config_status' % msg['from'].bare , msg) - - def handle_groupchat_presence(self, pr): - """ Handle a presence in a muc. - """ - got_offline = False - got_online = False - if pr['muc']['room'] not in self.rooms.keys(): - return - self.xmpp.roster[pr['from']].ignore_updates = True - entry = pr['muc'].get_stanza_values() - entry['show'] = pr['show'] if pr['show'] in pr.showtypes else None - entry['status'] = pr['status'] - entry['alt_nick'] = pr['nick'] - if pr['type'] == 'unavailable': - if entry['nick'] in self.rooms[entry['room']]: - del self.rooms[entry['room']][entry['nick']] - got_offline = True - else: - if entry['nick'] not in self.rooms[entry['room']]: - got_online = True - self.rooms[entry['room']][entry['nick']] = entry - log.debug("MUC presence from %s/%s : %s", entry['room'],entry['nick'], entry) - self.xmpp.event("groupchat_presence", pr) - self.xmpp.event("muc::%s::presence" % entry['room'], pr) - if got_offline: - self.xmpp.event("muc::%s::got_offline" % entry['room'], pr) - if got_online: - self.xmpp.event("muc::%s::got_online" % entry['room'], pr) - - def handle_groupchat_message(self, msg: Message) -> None: - """ Handle a message event in a muc. - """ - self.xmpp.event('groupchat_message', msg) - self.xmpp.event("muc::%s::message" % msg['from'].bare, msg) - - def handle_groupchat_error_message(self, msg): - """ Handle a message error event in a muc. - """ - self.xmpp.event('groupchat_message_error', msg) - self.xmpp.event("muc::%s::message_error" % msg['from'].bare, msg) - - - - def handle_groupchat_subject(self, msg: Message) -> None: - """ Handle a message coming from a muc indicating - a change of subject (or announcing it when joining the room) - """ - # See poezio#3452. A message containing subject _and_ (body or thread) - # is not a subject change. - if msg['body'] or msg['thread']: - return None - self.xmpp.event('groupchat_subject', msg) - - def jid_in_room(self, room, jid): - for nick in self.rooms[room]: - entry = self.rooms[room][nick] - if entry is not None and entry['jid'].full == jid: - return True - return False - - def get_nick(self, room, jid): - for nick in self.rooms[room]: - entry = self.rooms[room][nick] - if entry is not None and entry['jid'].full == jid: - return nick - - def configure_room(self, room, form=None, ifrom=None): - if form is None: - form = self.get_room_config(room, ifrom=ifrom) - iq = self.xmpp.make_iq_set() - iq['to'] = room - if ifrom is not None: - iq['from'] = ifrom - query = ET.Element('{http://jabber.org/protocol/muc#owner}query') - form['type'] = 'submit' - query.append(form) - iq.append(query) - # For now, swallow errors to preserve existing API - try: - result = iq.send() - except IqError: - return False - except IqTimeout: - return False - return True - - def join_muc(self, room, nick, maxhistory="0", password='', wait=False, pstatus=None, pshow=None, pfrom=None): - """ Join the specified room, requesting 'maxhistory' lines of history. - """ - stanza = self.xmpp.make_presence(pto="%s/%s" % (room, nick), pstatus=pstatus, pshow=pshow, pfrom=pfrom) - x = ET.Element('{http://jabber.org/protocol/muc}x') - if password: - passelement = ET.Element('{http://jabber.org/protocol/muc}password') - passelement.text = password - x.append(passelement) - if maxhistory: - history = ET.Element('{http://jabber.org/protocol/muc}history') - if maxhistory == "0": - history.attrib['maxchars'] = maxhistory - else: - history.attrib['maxstanzas'] = maxhistory - x.append(history) - stanza.append(x) - if not wait: - self.xmpp.send(stanza) - else: - #wait for our own room presence back - expect = ET.Element("{%s}presence" % self.xmpp.default_ns, {'from':"%s/%s" % (room, nick)}) - self.xmpp.send(stanza, expect) - self.rooms[room] = {} - self.our_nicks[room] = nick - - def destroy(self, room, reason='', altroom = '', ifrom=None): - iq = self.xmpp.make_iq_set() - if ifrom is not None: - iq['from'] = ifrom - iq['to'] = room - query = ET.Element('{http://jabber.org/protocol/muc#owner}query') - destroy = ET.Element('{http://jabber.org/protocol/muc#owner}destroy') - if altroom: - destroy.attrib['jid'] = altroom - xreason = ET.Element('{http://jabber.org/protocol/muc#owner}reason') - xreason.text = reason - destroy.append(xreason) - query.append(destroy) - iq.append(query) - # For now, swallow errors to preserve existing API - try: - r = iq.send() - except IqError: - return False - except IqTimeout: - return False - return True - - def set_affiliation(self, room, jid=None, nick=None, affiliation='member', ifrom=None): - """ Change room affiliation.""" - if affiliation not in ('outcast', 'member', 'admin', 'owner', 'none'): - raise TypeError - query = ET.Element('{http://jabber.org/protocol/muc#admin}query') - if nick is not None: - item = ET.Element('{http://jabber.org/protocol/muc#admin}item', {'affiliation':affiliation, 'nick':nick}) - else: - item = ET.Element('{http://jabber.org/protocol/muc#admin}item', {'affiliation':affiliation, 'jid':jid}) - query.append(item) - iq = self.xmpp.make_iq_set(query) - iq['to'] = room - iq['from'] = ifrom - # For now, swallow errors to preserve existing API - try: - result = iq.send() - except IqError: - return False - except IqTimeout: - return False - return True - - def set_role(self, room, nick, role): - """ Change role property of a nick in a room. - Typically, roles are temporary (they last only as long as you are in the - room), whereas affiliations are permanent (they last across groupchat - sessions). - """ - if role not in ('moderator', 'participant', 'visitor', 'none'): - raise TypeError - query = ET.Element('{http://jabber.org/protocol/muc#admin}query') - item = ET.Element('item', {'role':role, 'nick':nick}) - query.append(item) - iq = self.xmpp.make_iq_set(query) - iq['to'] = room - result = iq.send() - if result is False or result['type'] != 'result': - raise ValueError - return True - - def invite(self, room, jid, reason='', mfrom=''): - """ Invite a jid to a room.""" - msg = self.xmpp.make_message(room) - msg['from'] = mfrom - x = ET.Element('{http://jabber.org/protocol/muc#user}x') - invite = ET.Element('{http://jabber.org/protocol/muc#user}invite', {'to': jid}) - if reason: - rxml = ET.Element('{http://jabber.org/protocol/muc#user}reason') - rxml.text = reason - invite.append(rxml) - x.append(invite) - msg.append(x) - self.xmpp.send(msg) - - def leave_muc(self, room, nick, msg='', pfrom=None): - """ Leave the specified room. - """ - if msg: - self.xmpp.send_presence(pshow='unavailable', pto="%s/%s" % (room, nick), pstatus=msg, pfrom=pfrom) - else: - self.xmpp.send_presence(pshow='unavailable', pto="%s/%s" % (room, nick), pfrom=pfrom) - del self.rooms[room] - - def get_room_config(self, room, ifrom=''): - iq = self.xmpp.make_iq_get('http://jabber.org/protocol/muc#owner') - iq['to'] = room - iq['from'] = ifrom - # For now, swallow errors to preserve existing API - try: - result = iq.send() - except IqError: - raise ValueError - except IqTimeout: - raise ValueError - form = result.xml.find('{http://jabber.org/protocol/muc#owner}query/{jabber:x:data}x') - if form is None: - raise ValueError - return self.xmpp.plugin['xep_0004'].build_form(form) - - def cancel_config(self, room, ifrom=None): - query = ET.Element('{http://jabber.org/protocol/muc#owner}query') - x = ET.Element('{jabber:x:data}x', type='cancel') - query.append(x) - iq = self.xmpp.make_iq_set(query) - iq['to'] = room - iq['from'] = ifrom - iq.send() - - def set_room_config(self, room, config, ifrom=''): - query = ET.Element('{http://jabber.org/protocol/muc#owner}query') - config['type'] = 'submit' - query.append(config) - iq = self.xmpp.make_iq_set(query) - iq['to'] = room - iq['from'] = ifrom - iq.send() - - def get_joined_rooms(self): - return self.rooms.keys() - - def get_our_jid_in_room(self, room_jid): - """ Return the jid we're using in a room. - """ - return "%s/%s" % (room_jid, self.our_nicks[room_jid]) - - def get_jid_property(self, room, nick, jid_property): - """ Get the property of a nick in a room, such as its 'jid' or 'affiliation' - If not found, return None. - """ - if room in self.rooms and nick in self.rooms[room] and jid_property in self.rooms[room][nick]: - return self.rooms[room][nick][jid_property] - else: - return None - - def get_roster(self, room): - """ Get the list of nicks in a room. - """ - if room not in self.rooms.keys(): - return None - return self.rooms[room].keys() - - def get_users_by_affiliation(cls, room, affiliation='member', ifrom=None): - if affiliation not in ('outcast', 'member', 'admin', 'owner', 'none'): - raise TypeError - query = ET.Element('{http://jabber.org/protocol/muc#admin}query') - item = ET.Element('{http://jabber.org/protocol/muc#admin}item', {'affiliation': affiliation}) - query.append(item) - iq = cls.xmpp.Iq(sto=room, sfrom=ifrom, stype='get') - iq.append(query) - return iq.send() - - register_plugin(XEP_0045) diff --git a/slixmpp/plugins/xep_0045/muc.py b/slixmpp/plugins/xep_0045/muc.py new file mode 100644 index 00000000..c85779d1 --- /dev/null +++ b/slixmpp/plugins/xep_0045/muc.py @@ -0,0 +1,336 @@ +""" + Slixmpp: The Slick XMPP Library + Copyright (C) 2010 Nathanael C. Fritz + Copyright (C) 2020 "Maxime “pep” Buquet " + This file is part of Slixmpp. + + See the file LICENSE for copying permission. +""" +from __future__ import with_statement + +import logging + +from slixmpp import Presence, Message +from slixmpp.plugins import BasePlugin +from slixmpp.xmlstream import register_stanza_plugin, ET +from slixmpp.xmlstream.handler.callback import Callback +from slixmpp.xmlstream.matcher.xpath import MatchXPath +from slixmpp.xmlstream.matcher.xmlmask import MatchXMLMask +from slixmpp.exceptions import IqError, IqTimeout + +from slixmpp.plugins.xep_0045 import stanza +from slixmpp.plugins.xep_0045.stanza import MUCPresence + + +log = logging.getLogger(__name__) + + +class XEP_0045(BasePlugin): + + """ + Implements XEP-0045 Multi-User Chat + """ + + name = 'xep_0045' + description = 'XEP-0045: Multi-User Chat' + dependencies = {'xep_0030', 'xep_0004'} + stanza = stanza + + def plugin_init(self): + self.rooms = {} + self.our_nicks = {} + self.xep = '0045' + # load MUC support in presence stanzas + register_stanza_plugin(Presence, MUCPresence) + self.xmpp.register_handler(Callback('MUCPresence', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_presence)) + self.xmpp.register_handler(Callback('MUCError', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_error_message)) + self.xmpp.register_handler(Callback('MUCMessage', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_message)) + self.xmpp.register_handler(Callback('MUCSubject', MatchXMLMask("" % self.xmpp.default_ns), self.handle_groupchat_subject)) + self.xmpp.register_handler(Callback('MUCConfig', MatchXMLMask("" % self.xmpp.default_ns), self.handle_config_change)) + self.xmpp.register_handler(Callback('MUCInvite', MatchXPath("{%s}message/{%s}x/{%s}invite" % ( + self.xmpp.default_ns, + stanza.NS_USER, + stanza.NS_USER)), self.handle_groupchat_invite)) + + def plugin_end(self): + self.xmpp.plugin['xep_0030'].del_feature(feature=stanza.NS) + + def session_bind(self, jid): + self.xmpp.plugin['xep_0030'].add_feature(stanza.NS) + + def handle_groupchat_invite(self, inv): + """ Handle an invite into a muc. + """ + logging.debug("MUC invite to %s from %s: %s", inv['to'], inv["from"], inv) + if inv['from'] not in self.rooms.keys(): + self.xmpp.event("groupchat_invite", inv) + + def handle_config_change(self, msg): + """Handle a MUC configuration change (with status code).""" + self.xmpp.event('groupchat_config_status', msg) + self.xmpp.event('muc::%s::config_status' % msg['from'].bare , msg) + + def handle_groupchat_presence(self, pr): + """ Handle a presence in a muc. + """ + got_offline = False + got_online = False + if pr['muc']['room'] not in self.rooms.keys(): + return + self.xmpp.roster[pr['from']].ignore_updates = True + entry = pr['muc'].get_stanza_values() + entry['show'] = pr['show'] if pr['show'] in pr.showtypes else None + entry['status'] = pr['status'] + entry['alt_nick'] = pr['nick'] + if pr['type'] == 'unavailable': + if entry['nick'] in self.rooms[entry['room']]: + del self.rooms[entry['room']][entry['nick']] + got_offline = True + else: + if entry['nick'] not in self.rooms[entry['room']]: + got_online = True + self.rooms[entry['room']][entry['nick']] = entry + log.debug("MUC presence from %s/%s : %s", entry['room'],entry['nick'], entry) + self.xmpp.event("groupchat_presence", pr) + self.xmpp.event("muc::%s::presence" % entry['room'], pr) + if got_offline: + self.xmpp.event("muc::%s::got_offline" % entry['room'], pr) + if got_online: + self.xmpp.event("muc::%s::got_online" % entry['room'], pr) + + def handle_groupchat_message(self, msg: Message) -> None: + """ Handle a message event in a muc. + """ + self.xmpp.event('groupchat_message', msg) + self.xmpp.event("muc::%s::message" % msg['from'].bare, msg) + + def handle_groupchat_error_message(self, msg): + """ Handle a message error event in a muc. + """ + self.xmpp.event('groupchat_message_error', msg) + self.xmpp.event("muc::%s::message_error" % msg['from'].bare, msg) + + + + def handle_groupchat_subject(self, msg: Message) -> None: + """ Handle a message coming from a muc indicating + a change of subject (or announcing it when joining the room) + """ + # See poezio#3452. A message containing subject _and_ (body or thread) + # is not a subject change. + if msg['body'] or msg['thread']: + return None + self.xmpp.event('groupchat_subject', msg) + + def jid_in_room(self, room, jid): + for nick in self.rooms[room]: + entry = self.rooms[room][nick] + if entry is not None and entry['jid'].full == jid: + return True + return False + + def get_nick(self, room, jid): + for nick in self.rooms[room]: + entry = self.rooms[room][nick] + if entry is not None and entry['jid'].full == jid: + return nick + + def configure_room(self, room, form=None, ifrom=None): + if form is None: + form = self.get_room_config(room, ifrom=ifrom) + iq = self.xmpp.make_iq_set() + iq['to'] = room + if ifrom is not None: + iq['from'] = ifrom + query = ET.Element('{http://jabber.org/protocol/muc#owner}query') + form['type'] = 'submit' + query.append(form) + iq.append(query) + # For now, swallow errors to preserve existing API + try: + result = iq.send() + except IqError: + return False + except IqTimeout: + return False + return True + + def join_muc(self, room, nick, maxhistory="0", password='', wait=False, pstatus=None, pshow=None, pfrom=None): + """ Join the specified room, requesting 'maxhistory' lines of history. + """ + stanza = self.xmpp.make_presence(pto="%s/%s" % (room, nick), pstatus=pstatus, pshow=pshow, pfrom=pfrom) + x = ET.Element('{http://jabber.org/protocol/muc}x') + if password: + passelement = ET.Element('{http://jabber.org/protocol/muc}password') + passelement.text = password + x.append(passelement) + if maxhistory: + history = ET.Element('{http://jabber.org/protocol/muc}history') + if maxhistory == "0": + history.attrib['maxchars'] = maxhistory + else: + history.attrib['maxstanzas'] = maxhistory + x.append(history) + stanza.append(x) + if not wait: + self.xmpp.send(stanza) + else: + #wait for our own room presence back + expect = ET.Element("{%s}presence" % self.xmpp.default_ns, {'from':"%s/%s" % (room, nick)}) + self.xmpp.send(stanza, expect) + self.rooms[room] = {} + self.our_nicks[room] = nick + + def destroy(self, room, reason='', altroom = '', ifrom=None): + iq = self.xmpp.make_iq_set() + if ifrom is not None: + iq['from'] = ifrom + iq['to'] = room + query = ET.Element('{http://jabber.org/protocol/muc#owner}query') + destroy = ET.Element('{http://jabber.org/protocol/muc#owner}destroy') + if altroom: + destroy.attrib['jid'] = altroom + xreason = ET.Element('{http://jabber.org/protocol/muc#owner}reason') + xreason.text = reason + destroy.append(xreason) + query.append(destroy) + iq.append(query) + # For now, swallow errors to preserve existing API + try: + r = iq.send() + except IqError: + return False + except IqTimeout: + return False + return True + + def set_affiliation(self, room, jid=None, nick=None, affiliation='member', ifrom=None): + """ Change room affiliation.""" + if affiliation not in ('outcast', 'member', 'admin', 'owner', 'none'): + raise TypeError + query = ET.Element('{http://jabber.org/protocol/muc#admin}query') + if nick is not None: + item = ET.Element('{http://jabber.org/protocol/muc#admin}item', {'affiliation':affiliation, 'nick':nick}) + else: + item = ET.Element('{http://jabber.org/protocol/muc#admin}item', {'affiliation':affiliation, 'jid':jid}) + query.append(item) + iq = self.xmpp.make_iq_set(query) + iq['to'] = room + iq['from'] = ifrom + # For now, swallow errors to preserve existing API + try: + result = iq.send() + except IqError: + return False + except IqTimeout: + return False + return True + + def set_role(self, room, nick, role): + """ Change role property of a nick in a room. + Typically, roles are temporary (they last only as long as you are in the + room), whereas affiliations are permanent (they last across groupchat + sessions). + """ + if role not in ('moderator', 'participant', 'visitor', 'none'): + raise TypeError + query = ET.Element('{http://jabber.org/protocol/muc#admin}query') + item = ET.Element('item', {'role':role, 'nick':nick}) + query.append(item) + iq = self.xmpp.make_iq_set(query) + iq['to'] = room + result = iq.send() + if result is False or result['type'] != 'result': + raise ValueError + return True + + def invite(self, room, jid, reason='', mfrom=''): + """ Invite a jid to a room.""" + msg = self.xmpp.make_message(room) + msg['from'] = mfrom + x = ET.Element('{http://jabber.org/protocol/muc#user}x') + invite = ET.Element('{http://jabber.org/protocol/muc#user}invite', {'to': jid}) + if reason: + rxml = ET.Element('{http://jabber.org/protocol/muc#user}reason') + rxml.text = reason + invite.append(rxml) + x.append(invite) + msg.append(x) + self.xmpp.send(msg) + + def leave_muc(self, room, nick, msg='', pfrom=None): + """ Leave the specified room. + """ + if msg: + self.xmpp.send_presence(pshow='unavailable', pto="%s/%s" % (room, nick), pstatus=msg, pfrom=pfrom) + else: + self.xmpp.send_presence(pshow='unavailable', pto="%s/%s" % (room, nick), pfrom=pfrom) + del self.rooms[room] + + def get_room_config(self, room, ifrom=''): + iq = self.xmpp.make_iq_get('http://jabber.org/protocol/muc#owner') + iq['to'] = room + iq['from'] = ifrom + # For now, swallow errors to preserve existing API + try: + result = iq.send() + except IqError: + raise ValueError + except IqTimeout: + raise ValueError + form = result.xml.find('{http://jabber.org/protocol/muc#owner}query/{jabber:x:data}x') + if form is None: + raise ValueError + return self.xmpp.plugin['xep_0004'].build_form(form) + + def cancel_config(self, room, ifrom=None): + query = ET.Element('{http://jabber.org/protocol/muc#owner}query') + x = ET.Element('{jabber:x:data}x', type='cancel') + query.append(x) + iq = self.xmpp.make_iq_set(query) + iq['to'] = room + iq['from'] = ifrom + iq.send() + + def set_room_config(self, room, config, ifrom=''): + query = ET.Element('{http://jabber.org/protocol/muc#owner}query') + config['type'] = 'submit' + query.append(config) + iq = self.xmpp.make_iq_set(query) + iq['to'] = room + iq['from'] = ifrom + iq.send() + + def get_joined_rooms(self): + return self.rooms.keys() + + def get_our_jid_in_room(self, room_jid): + """ Return the jid we're using in a room. + """ + return "%s/%s" % (room_jid, self.our_nicks[room_jid]) + + def get_jid_property(self, room, nick, jid_property): + """ Get the property of a nick in a room, such as its 'jid' or 'affiliation' + If not found, return None. + """ + if room in self.rooms and nick in self.rooms[room] and jid_property in self.rooms[room][nick]: + return self.rooms[room][nick][jid_property] + else: + return None + + def get_roster(self, room): + """ Get the list of nicks in a room. + """ + if room not in self.rooms.keys(): + return None + return self.rooms[room].keys() + + def get_users_by_affiliation(cls, room, affiliation='member', ifrom=None): + if affiliation not in ('outcast', 'member', 'admin', 'owner', 'none'): + raise TypeError + query = ET.Element('{http://jabber.org/protocol/muc#admin}query') + item = ET.Element('{http://jabber.org/protocol/muc#admin}item', {'affiliation': affiliation}) + query.append(item) + iq = cls.xmpp.Iq(sto=room, sfrom=ifrom, stype='get') + iq.append(query) + return iq.send()