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# -*- coding: utf-8 -*-
# Copyright 2009, 2010 Erwan Briand
# Copyright 2010, Florent Le Coz <louizatakk@fedoraproject.org>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation version 3 of the License.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Implementation of the XEP-0045: Multi-User Chat.
from xmpp import NS_MUC_ADMIN
from xmpp.protocol import Presence, Iq, Message, JID
from handler import Handler
def get_stripped_jid(jid):
"""Return the stripped JID (bare representation)"""
if isinstance(jid, basestring):
jid = JID(jid)
return jid.getStripped()
def is_jid(jid):
"""Return True if this is a valid JID"""
if JID(jid).getNode() != '':
return True
class MultiUserChat(object):
def __init__(self, connection):
self.connection = connection
self.rooms = []
self.rn = {}
self.handler = Handler()
self.handler.connect('join-room', self.join_room)
self.handler.connect('quit-room', self.quit_room)
self.handler.connect('on-disconnected', self.on_disconnect)
self.handler.connect('xmpp-iq-handler', self.on_iq)
self.handler.connect('xmpp-presence-handler', self.on_presence)
self.handler.connect('xmpp-message-handler', self.on_message)
self.handler.connect('eject-user', self.eject_user)
self.handler.connect('change-user-role', self.change_role)
self.handler.connect('change-user-affiliation', self.change_aff)
self.handler.connect('change-subject', self.change_subject)
self.handler.connect('change-nick', self.change_nick)
def join_room(self, room, nick):
"""Join a new room"""
self.rooms.append(room)
self.rn[room] = nick
pres = Presence(to='%s/%s' % (room, nick))
self.connection.send(pres)
def quit_room(self, room, nick):
"""Quit a room"""
if room is None and nick is None:
self.on_disconnect()
return
pres = Presence(to='%s/%s' % (room, nick), typ='unavailable')
self.connection.send(pres)
self.rooms.remove(unicode(room))
del self.rn[room]
def on_disconnect(self):
"""Called at disconnection"""
for room in self.rooms:
pres = Presence(to='%s/%s' % (room, self.rn[room]),
typ='unavailable')
self.connection.send(pres)
self.rooms = []
self.rn = {}
def on_iq(self, iq):
"""Receive a MUC iq notification"""
from_ = iq.getFrom().__str__()
if get_stripped_jid(from_) in self.rooms:
children = iq.getChildren()
for child in children:
if child.getName() == 'error':
code = int(child.getAttr('code'))
msg = None
echildren = child.getChildren()
for echild in echildren:
if echild.getName() == 'text':
msg = echild.getData()
self.handler.emit('on-muc-error',
room=from_,
code=code,
msg=msg)
def on_presence(self, presence):
"""Receive a MUC presence notification"""
from_ = presence.getFrom().__str__()
if get_stripped_jid(from_) in self.rooms:
self.handler.emit('on-muc-presence-changed',
jid=from_.encode('utf-8'),
priority=presence.getPriority(),
show=presence.getShow(),
status=presence.getStatus(),
stanza=presence
)
def on_message(self, message):
"""Receive a MUC message notification"""
from_ = message.getFrom().__str__().encode('utf-8')
if get_stripped_jid(from_) in self.rooms:
body_ = message.getBody()
type_ = message.getType()
subj_ = message.getSubject()
self.handler.emit('on-muc-message-received',
jid=from_, msg=body_, subject=subj_,
typ=type_, stanza=message)
def eject_user(self, room, action, nick, reason):
"""Eject an user from a room"""
iq = Iq(typ='set', to=room)
query = iq.addChild('query', namespace=NS_MUC_ADMIN)
item = query.addChild('item')
if action == 'kick':
item.setAttr('role', 'none')
if is_jid(nick):
item.setAttr('jid', nick)
else:
item.setAttr('nick', nick)
elif action == 'ban':
item.setAttr('affiliation', 'outcast')
item.setAttr('jid', nick)
if reason is not None:
rson = item.addChild('reason')
rson.setData(reason)
self.connection.send(iq)
def change_role(self, room, nick, role):
"""Change the role of an user"""
iq = Iq(typ='set', to=room)
query = iq.addChild('query', namespace=NS_MUC_ADMIN)
item = query.addChild('item')
item.setAttr('nick', nick)
item.setAttr('role', role)
self.connection.send(iq)
def change_aff(self, room, jid, aff):
"""Change the affiliation of an user"""
iq = Iq(typ='set', to=room)
query = iq.addChild('query', namespace=NS_MUC_ADMIN)
item = query.addChild('item')
item.setAttr('jid', jid)
item.setAttr('affiliation', aff)
self.connection.send(iq)
def change_subject(self, room, subject):
"""Change the subject of a room"""
message = Message(typ='groupchat', to=room)
subj = message.addChild('subject')
subj.setData(subject)
self.connection.send(message)
def change_nick(self, room, nick):
"""Change the nickname"""
pres = Presence(to='%s/%s' % (room, nick))
self.connection.send(pres)
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