2024-12-11 21:17:23 +00:00

734 lines
28 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# Slixmpp: The Slick XMPP Library
# Copyright (C) 2010 Nathanael C. Fritz
# Copyright (C) 2020 "Maxime “pep” Buquet <pep@bouah.net>"
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
from __future__ import with_statement
import asyncio
import logging
from datetime import datetime
from typing import (
Any,
Dict,
List,
Tuple,
Optional,
)
from slixmpp import (
Presence,
Message,
Iq,
JID,
)
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.stanzapath import StanzaPath
from slixmpp.xmlstream.matcher.xmlmask import MatchXMLMask
from slixmpp.exceptions import IqError, IqTimeout, PresenceError
from slixmpp.plugins.xep_0004 import Form
from slixmpp.plugins.xep_0045 import stanza
from slixmpp.plugins.xep_0045.stanza import (
MUCInvite,
MUCDecline,
MUCDestroy,
MUCPresence,
MUCJoin,
MUCMessage,
MUCAdminQuery,
MUCAdminItem,
MUCHistory,
MUCOwnerQuery,
MUCOwnerDestroy,
MUCStatus,
MUCActor,
MUCUserItem,
)
from slixmpp.types import (
JidStr,
MucRole,
MucAffiliation,
MucRoomItem,
MucRoomItemKeys,
PresenceArgs,
PresenceShows,
)
JoinResult = Tuple[Presence, Message, List[Presence], List[Message]]
log = logging.getLogger(__name__)
AFFILIATIONS = ('outcast', 'member', 'admin', 'owner', 'none')
ROLES = ('moderator', 'participant', 'visitor', 'none')
class XEP_0045(BasePlugin):
"""
XEP-0045 Multi-User Chat
"""
name = 'xep_0045'
description = 'XEP-0045: Multi-User Chat'
dependencies = {'xep_0030', 'xep_0004', 'xep_0203'}
stanza = stanza
rooms: Dict[JID, Dict[str, MucRoomItem]]
our_nicks: Dict[JID, str]
def plugin_init(self):
self.rooms = {}
self.our_nicks = {}
# load MUC support in presence stanzas
register_stanza_plugin(MUCMessage, MUCUserItem)
register_stanza_plugin(MUCPresence, MUCUserItem)
register_stanza_plugin(MUCUserItem, MUCActor)
register_stanza_plugin(MUCMessage, MUCInvite)
register_stanza_plugin(MUCMessage, MUCDecline)
register_stanza_plugin(MUCMessage, MUCStatus)
register_stanza_plugin(MUCPresence, MUCStatus)
register_stanza_plugin(Presence, MUCPresence)
register_stanza_plugin(MUCPresence, MUCDestroy)
register_stanza_plugin(Presence, MUCJoin)
register_stanza_plugin(MUCJoin, MUCHistory)
register_stanza_plugin(Message, MUCMessage)
register_stanza_plugin(Iq, MUCAdminQuery)
register_stanza_plugin(Iq, MUCOwnerQuery)
register_stanza_plugin(MUCOwnerQuery, MUCOwnerDestroy)
register_stanza_plugin(MUCOwnerQuery, Form)
register_stanza_plugin(MUCAdminQuery, MUCAdminItem, iterable=True)
# Register handlers
self.xmpp.register_handler(
Callback(
'MUCPresence',
StanzaPath("presence/muc"),
self._handle_groupchat_presence,
))
# <x xmlns="http://jabber.org/protocol/muc"/> is only used in
# presence when joining on the client side, and for errors on
# the server side.
if self.xmpp.is_component:
self.xmpp.register_handler(
Callback(
'MUCPresenceJoin',
StanzaPath("presence/muc_join"),
self._handle_groupchat_join,
))
self.xmpp.register_handler(
Callback(
"MUCPresenceError",
StanzaPath("presence@type=error/muc_join"),
self._handle_presence_error,
)
)
self.xmpp.register_handler(
Callback(
'MUCError',
MatchXMLMask("<message xmlns='%s' type='error'><error/></message>" % self.xmpp.default_ns),
self._handle_groupchat_error_message
))
self.xmpp.register_handler(
Callback(
'MUCMessage',
MatchXMLMask("<message xmlns='%s' type='groupchat'><body/></message>" % self.xmpp.default_ns),
self._handle_groupchat_message
))
self.xmpp.register_handler(
Callback(
'MUCSubject',
MatchXMLMask("<message xmlns='%s' type='groupchat'><subject/></message>" % self.xmpp.default_ns),
self._handle_groupchat_subject
))
self.xmpp.register_handler(
Callback(
'MUCConfig',
StanzaPath('message/muc/status'),
self._handle_config_change
))
self.xmpp.register_handler(
Callback(
'MUCInvite',
StanzaPath('message/muc/invite'),
self._handle_groupchat_invite
))
self.xmpp.register_handler(
Callback(
'MUCDecline',
StanzaPath('message/muc/decline'),
self._handle_groupchat_decline
))
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: Message):
""" Handle an invite into a muc. """
if self.xmpp.is_component:
self.xmpp.event('groupchat_invite', inv)
else:
if inv['from'] not in self.rooms.keys():
self.xmpp.event("groupchat_invite", inv)
def _handle_groupchat_decline(self, decl: Message):
"""Handle an invitation decline."""
if self.xmpp.is_component:
self.xmpp.event('groupchat_invite', decl)
else:
if decl['from'] in self.room.keys():
self.xmpp.event('groupchat_decline', decl)
def _handle_config_change(self, msg: Message):
"""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 _client_handle_presence(self, pr: Presence):
"""As a client, handle a presence stanza"""
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)
if 110 in pr['muc']['status_codes']:
self.xmpp.event("muc::%s::self-presence" % entry['room'], 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_presence_error(self, pr: Presence):
"""Generate MUC presence error events"""
self.xmpp.event("muc::%s::presence-error" % pr['from'].bare, pr)
def _handle_groupchat_presence(self, pr: Presence):
""" Handle a presence in a muc."""
if self.xmpp.is_component:
self.xmpp.event('groupchat_presence', pr)
else:
self._client_handle_presence(pr)
def _handle_groupchat_join(self, pr: Presence):
"""Received a join presence (as a component)"""
self.xmpp.event('groupchat_join', pr)
def _handle_groupchat_message(self, msg: Message):
""" 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: Message):
""" 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):
""" 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
self.xmpp.event('groupchat_subject', msg)
self.xmpp.event('muc::%s::groupchat_subject' % msg['from'].bare, msg)
async def join_muc_wait(self, room: JID, nick: str, *,
password: Optional[str] = None,
maxchars: Optional[int] = None,
maxstanzas: Optional[int] = None,
seconds: Optional[int] = None,
since: Optional[datetime] = None,
presence_options: Optional[PresenceArgs] = None,
timeout: int = 300) -> JoinResult:
"""
Try to join a MUC and block until we are joined or get an error.
Only one of {maxchars, maxstanzas, seconds, since} will be used, in
that order.
.. versionadded:: 1.8.0
:param password: The optional room password.
:param maxchars: Max number of characters to return from history.
:param maxstanzas: Max number of stanzas to return from history.
:param seconds: Fetch history until that many seconds in the past.
:param since: Fetch history since that timestamp.
:param timeout: Timeout after which a TimeoutError is raised.
None means no timeout.
:raises: A slixmpp.exceptions.PresenceError if the MUC returns a
presence error.
:raises: An asyncio.TimeoutError if there is neither success nor
presence error when the timeout is reached.
:return: A tuple containing our own presence, the subject, a list
of occupants and a list of history messages.
"""
if presence_options is None:
presence_options = {}
stanza = self.xmpp.make_presence(
pto="%s/%s" % (room, nick),
**presence_options
)
stanza.enable('muc_join')
if password is not None:
stanza['muc_join']['password'] = password
if maxchars is not None:
stanza['muc_join']['history']['maxchars'] = str(maxchars)
elif maxstanzas is not None:
stanza['muc_join']['history']['maxstanzas'] = str(maxstanzas)
elif seconds is not None:
stanza['muc_join']['history']['seconds'] = str(seconds)
elif since is not None:
fmt = self.xmpp.plugin['xep_0082'].format_datetime(since)
stanza['muc_join']['history']['since'] = fmt
self.rooms[room] = {}
self.our_nicks[room] = nick
stanza.send()
return await self._await_join(room, timeout)
async def _await_join(self, room: JID, timeout: int = 300) -> JoinResult:
"""Do the heavy lifting for awaiting a MUC join
A muc join, once the join stanza is sent, is:
occupant presences → self-presence → room history → room subject
"""
presence_done: asyncio.Future = asyncio.Future()
topic_received: asyncio.Future = asyncio.Future()
history_buffer: List[Message] = []
occupant_buffer: List[Presence] = []
def add_message(msg: Message):
delay = msg.get_plugin('delay', check=True)
if delay is not None and delay['from'] == room:
history_buffer.append(msg)
def add_occupant(pres: Presence):
occupant_buffer.append(pres)
catch_occupants = self.xmpp.event_handler("muc::%s::got_online" % room, add_occupant)
catch_history = self.xmpp.event_handler("muc::%s::message" % room, add_message)
subject_handler = self.xmpp.event_handler("muc::%s::groupchat_subject" % room, topic_received.set_result)
self_presence = self.xmpp.event_handler("muc::%s::self-presence" % room, presence_done.set_result)
presence_error = self.xmpp.event_handler("muc::%s::presence-error" % room, presence_done.set_result)
with subject_handler, catch_history, catch_occupants:
with self_presence, presence_error:
done, pending = await asyncio.wait(
[presence_done],
timeout=timeout,
)
if pending:
raise asyncio.TimeoutError()
pres: Presence = presence_done.result()
if pres['type'] == 'error':
raise PresenceError(pres)
done, pending = await asyncio.wait(
[topic_received],
timeout=timeout,
)
if pending:
raise asyncio.TimeoutError()
subject: Message = topic_received.result()
# update known nick in case it has changed
self.our_nicks[room] = pres['from'].resource
return (pres, subject, occupant_buffer, history_buffer)
def join_muc(self, room: JID, nick: str, maxhistory="0", password='',
pstatus='', pshow: PresenceShows='chat', pfrom: JidStr='') -> asyncio.Future:
""" Join the specified room, requesting 'maxhistory' lines of history.
.. deprecated:: 1.8.0
:meth:`join_muc_wait` will replace this old API starting from version
1.9.0.
"""
presence_options = PresenceArgs(
pshow=pshow,
pstatus=pstatus,
pfrom=pfrom,
)
maxchars, maxstanzas = None, None
if maxhistory:
if maxhistory == "0":
maxchars = 9
else:
maxstanzas = int(maxhistory)
return asyncio.ensure_future(
self.join_muc_wait(
room=room,
nick=nick,
password=password,
presence_options=presence_options,
maxchars=maxchars,
maxstanzas=maxstanzas,
),
loop=self.xmpp.loop,
)
def leave_muc(self, room: JID, nick: str, msg: str = '', pfrom: Optional[JID] = None):
""" Leave the specified room.
:param room: Room to leave.
:param nick: Your nickname.
:param msg: Presence status to use.
"""
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 set_subject(self, room: JidStr, subject: str, *, mfrom: Optional[JID] = None):
"""Set a rooms subject.
:param room: JID of the room.
:param subject: Room subject to set.
"""
msg = self.xmpp.make_message(room, mfrom=mfrom)
msg['type'] = 'groupchat'
msg['subject'] = subject
msg.send()
async def get_room_config(self, room: JidStr, ifrom: Optional[JID] = None,
**iqkwargs) -> Form:
"""Get the room config form in 0004 plugin format.
:param room: Room to get the config form from.
:raises ValueError: When the form is not found.
:returns: A form object.
"""
iq = self.xmpp.make_iq_get(stanza.NS_OWNER, ito=room, ifrom=ifrom)
result = await iq.send(**iqkwargs)
form = result['mucowner_query'].get_plugin('form', check=True)
if form is None:
raise ValueError("Configuration form not found")
return form
async def set_room_config(self, room: JidStr, config: Form, *,
ifrom: Optional[JID] = None, **iqkwargs):
"""Send a room config form.
:param room: Room to send the form to.
:param config: A filled room form.
"""
query = MUCOwnerQuery()
config['type'] = 'submit'
query.append(config)
iq = self.xmpp.make_iq_set(query, ito=room, ifrom=ifrom)
await iq.send(**iqkwargs)
async def cancel_config(self, room: JidStr, *,
ifrom: Optional[JidStr] = None, **iqkwargs):
"""Cancel a requested config form.
:param room: Room to cancel the form for.
"""
query = MUCOwnerQuery()
query['form']['type'] = 'cancel'
iq = self.xmpp.make_iq_set(query, ito=room, ifrom=ifrom)
await iq.send(**iqkwargs)
async def destroy(self, room: JidStr, reason: str = '', altroom: Optional[JidStr] = None, *,
ifrom: Optional[JidStr] = None, **iqkwargs):
"""Destroy a room.
:param room: Room JID to destroy.
:param reason: Reason for destroying the room.
:param altroom: An alternate room that users should join.
"""
iq = self.xmpp.make_iq_set(ifrom=ifrom, ito=room)
iq.enable('mucowner_query')
iq['mucowner_query'].enable('destroy')
if altroom:
iq['mucowner_query']['destroy']['jid'] = altroom
if reason:
iq['mucowner_query']['destroy']['reason'] = reason
await iq.send(**iqkwargs)
async def set_affiliation(self, room: JidStr, affiliation: MucAffiliation, *,
jid: Optional[JidStr] = None,
nick: Optional[str] = None, reason: str = '',
ifrom: Optional[JidStr] = None, **iqkwargs):
""" Change room affiliation for a JID or nickname.
:param room: Room to modify.
:param affiliation: Affiliation to set.
:param jid: User JID to use in the set operation.
:param reason: Reason for the affiliation change.
"""
if affiliation not in AFFILIATIONS:
raise ValueError('%s is not a valid affiliation' % affiliation)
if affiliation == 'outcast' and not jid:
raise ValueError('Outcast affiliation requires using a jid')
if not any((jid, nick)):
raise ValueError('One of jid or nick must be set')
iq = self.xmpp.make_iq_set(ito=room, ifrom=ifrom)
iq['mucadmin_query']['item']['affiliation'] = affiliation
if nick:
iq['mucadmin_query']['item']['nick'] = nick
if jid:
iq['mucadmin_query']['item']['jid'] = jid
if reason:
iq['mucadmin_query']['item']['reason'] = reason
await iq.send(**iqkwargs)
async def get_affiliation_list(self, room: JidStr, affiliation: MucAffiliation, *,
ifrom: Optional[JidStr] = None, **iqkwargs) -> List[JID]:
"""Get a list of JIDs with the specified affiliation
:param room: Room to get affiliations from.
:param affiliation: The affiliation to list.
"""
iq = self.xmpp.make_iq_get(stanza.NS_ADMIN, ito=room, ifrom=ifrom)
iq['mucadmin_query']['item']['affiliation'] = affiliation
result = await iq.send(**iqkwargs)
return [item['jid'] for item in result['mucadmin_query']]
async def send_affiliation_list(self, room: JidStr,
affiliations: List[Tuple[JidStr, MucAffiliation]], *,
ifrom: Optional[JidStr] = None, **iqkwargs):
"""Send an affiliation delta list.
:param room: Room to send the affiliations to.
:param affiliations: List of couples (jid, affiliation) to set.
"""
iq = self.xmpp.make_iq_set(ito=room, ifrom=ifrom)
for jid, affiliation in affiliations:
item = MUCAdminItem()
item['jid'] = jid
item['affiliation'] = affiliation
iq['mucadmin_query'].append(item)
await iq.send(**iqkwargs)
async def set_role(self, room: JidStr, nick: str, role: MucRole, *,
reason: str = '', ifrom: Optional[JidStr] = None, **iqkwargs):
""" 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).
:param room: Room to modify.
:param nick: User nickname to use in the set operation.
:param role: Role to set.
:param reason: Reason for the role change.
"""
if role not in ROLES:
raise ValueError("Role %s does not exist" % role)
iq = self.xmpp.make_iq_set(ito=room, ifrom=ifrom)
iq['mucadmin_query']['item']['role'] = role
iq['mucadmin_query']['item']['nick'] = nick
if reason:
iq['mucadmin_query']['item']['reason'] = reason
await iq.send(**iqkwargs)
async def get_roles_list(self, room: JidStr, role: MucRole, *,
ifrom: Optional[JidStr] = None, **iqkwargs) -> List[str]:
""""Get a list of JIDs with the specified role
:param room: Room to get roles from.
:param role: The role to list.
"""
iq = self.xmpp.make_iq_get(stanza.NS_ADMIN, ito=room, ifrom=ifrom)
iq['mucadmin_query']['item']['role'] = role
result = await iq.send(**iqkwargs)
return [item['nick'] for item in result['mucadmin_query']]
async def send_role_list(self, room: JidStr, roles: List[Tuple[str, MucRole]], *,
ifrom: Optional[JidStr] = None, **iqkwargs):
"""Send a role delta list.
:param room: Room to send the roles to.
:param roles: List of couples (nick, role) to set.
"""
iq = self.xmpp.make_iq_set(ito=room, ifrom=ifrom)
for nick, affiliation in roles:
item = MUCAdminItem()
item['nick'] = nick
item['affiliation'] = affiliation
iq['mucadmin_query'].append(item)
await iq.send(**iqkwargs)
def invite(self, room: JidStr, jid: JidStr, reason: str = '', *,
mfrom: Optional[JidStr] = None):
""" Invite a jid to a room (mediated invitation).
:param room: Room to invite the user in.
:param jid: JID of the user to invite.
:param reason: Reason for inviting the user.
"""
msg = self.xmpp.make_message(room, mfrom=mfrom)
msg['muc']['invite']['to'] = jid
if reason:
msg['muc']['invite']['reason'] = reason
self.xmpp.send(msg)
def invite_server(self, room: JidStr, jid: JidStr,
invite_from: JidStr, reason: str = ''):
"""Send a mediated invite to a user, as a MUC service.
.. versionadded:: 1.8.0
:param room: Room to invite the user in.
:param jid: JID of the user to invite.
:param invite_from: JID of the user to send the invitation from.
:param reason: Reason for inviting the user.
"""
if not self.xmpp.is_component:
raise ValueError("Cannot use this method as a client.")
msg = self.xmpp.make_message(jid, mfrom=room)
msg['muc']['invite']['from'] = invite_from
if reason:
msg['muc']['invite']['reason'] = reason
msg.send()
def decline(self, room: JidStr, jid: JidStr, reason: str = '', *,
mfrom: Optional[JidStr] = None):
"""Decline a mediated invitation.
:param room: Room the invitation came from.
:param jid: JID of the user who sent the invitation.
:param reason: Reason for declining.
"""
msg = self.xmpp.make_message(room, mfrom=mfrom)
msg['muc']['decline']['to'] = jid
if reason:
msg['muc']['decline']['reason'] = reason
self.xmpp.send(msg)
def request_voice(self, room: JidStr, role: str, *, mfrom: Optional[JidStr] = None):
"""Request voice in a moderated room.
:param room: Room to request voice from.
"""
#form = self.xmpp['xep_0004'].make_form(ftype='submit')
msg = self.xmpp.make_message(room, mfrom=mfrom)
form = msg['form']
form['type'] = 'submit'
form.add_field(var='FORM_TYPE', ftype='hidden', value='http://jabber.org/protocol/muc#request')
form.add_field(var='muc#role', ftype='list-single', label='Requested role', value=role)
self.xmpp.send(msg)
def jid_in_room(self, room: JID, jid: JID) -> bool:
"""Check if a JID is present in a room.
:param room: Room to check.
:param jid: FULL JID to check.
"""
bare_match = False
for nick in self.rooms[room]:
entry = self.rooms[room][nick]
if not entry.get('jid'):
continue
if entry['jid'] == jid.full:
return True
elif JID(entry['jid']).bare == jid.bare:
bare_match = True
if bare_match:
logging.info(
"Could not retrieve full JID, falling back to bare JID for %s in %s",
jid, room
)
return bare_match
def get_nick(self, room: JID, jid: JID) -> Optional[str]:
"""Get the nickname of a specific JID in a room.
:param room: Room to inspect.
:param jid: FULL JID whose nick to return.
"""
bare_match = None
for nick in self.rooms[room]:
entry = self.rooms[room][nick]
if not entry.get('jid'):
continue
if entry['jid'] == jid.full:
return nick
elif JID(entry['jid']).bare == jid.bare:
bare_match = nick
if bare_match:
logging.info(
"Could not retrieve full JID, falling back to bare JID for %s in %s",
jid, room
)
return bare_match
def get_joined_rooms(self) -> List[JID]:
"""Get the list of rooms we sent a join presence to
and did not explicitly leave.
"""
return list(self.rooms.keys())
def get_our_jid_in_room(self, room_jid: JID) -> str:
""" 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: JID, nick: str,
jid_property: MucRoomItemKeys) -> Any:
""" Get the property of a nick in a room, such as its 'jid' or 'affiliation'
If not found, return None.
:param room: Get the property for this room.
:param nick: Which nickname information to get.
:param jid_property: Property to fetch.
"""
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: JID) -> List[str]:
""" Get the list of nicks in a room.
:param room: Room to list nicks from.
"""
if room not in self.rooms.keys():
raise ValueError("Room %s is not joined" % room)
return list(self.rooms[room].keys())
def get_users_by_affiliation(self, room: JidStr, affiliation='member', *, ifrom: Optional[JidStr] = None):
# Preserve old API
if affiliation not in AFFILIATIONS:
raise ValueError("Affiliation %s does not exist" % affiliation)
return self.get_affiliation_list(room, affiliation, ifrom=ifrom)