class ConferenceApplication(SylkApplication): implements(IObserver) def __init__(self): self._rooms = {} self.invited_participants_map = {} self.bonjour_focus_service = Null self.bonjour_room_service = Null self.web = Null def start(self): self.web = ConferenceWeb(self) web_server.register_resource('conference', self.web.resource) # cleanup old files for path in (ConferenceConfig.file_transfer_dir, ConferenceConfig.screensharing_images_dir): try: shutil.rmtree(path) except EnvironmentError: pass if ServerConfig.enable_bonjour and ServerConfig.default_application == 'conference': self.bonjour_focus_service = BonjourService(service='sipfocus') self.bonjour_focus_service.start() log.info("Bonjour publication started for service 'sipfocus'") self.bonjour_room_service = BonjourService(service='sipuri', name='Conference Room', uri_user='******') self.bonjour_room_service.start() self.bonjour_room_service.presence_state = BonjourPresenceState( 'available', u'No participants') log.info("Bonjour publication started for service 'sipuri'") def stop(self): self.bonjour_focus_service.stop() self.bonjour_room_service.stop() def get_room(self, uri, create=False): room_uri = '%s@%s' % (uri.user, uri.host) try: room = self._rooms[room_uri] except KeyError: if create: room = Room(room_uri) self._rooms[room_uri] = room return room else: raise RoomNotFoundError else: return room def remove_room(self, uri): room_uri = '%s@%s' % (uri.user, uri.host) self._rooms.pop(room_uri, None) def validate_acl(self, room_uri, from_uri): room_uri = '%s@%s' % (room_uri.user, room_uri.host) cfg = get_room_config(room_uri) if cfg.access_policy == 'allow,deny': if cfg.allow.match(from_uri) and not cfg.deny.match(from_uri): return raise ACLValidationError else: if cfg.deny.match(from_uri) and not cfg.allow.match(from_uri): raise ACLValidationError def incoming_session(self, session): log.info('New session from %s to %s' % (session.remote_identity.uri, session.local_identity.uri)) audio_streams = [ stream for stream in session.proposed_streams if stream.type == 'audio' ] chat_streams = [ stream for stream in session.proposed_streams if stream.type == 'chat' ] transfer_streams = [ stream for stream in session.proposed_streams if stream.type == 'file-transfer' ] if not audio_streams and not chat_streams and not transfer_streams: log.info(u'Session rejected: invalid media') session.reject(488) return audio_stream = audio_streams[0] if audio_streams else None chat_stream = chat_streams[0] if chat_streams else None transfer_stream = transfer_streams[0] if transfer_streams else None try: self.validate_acl(session.request_uri, session.remote_identity.uri) except ACLValidationError: log.info(u'Session rejected: unauthorized by access list') session.reject(403) return if transfer_stream is not None: try: room = self.get_room(session.request_uri) except RoomNotFoundError: log.info(u'Session rejected: room not found') session.reject(404) return if transfer_stream.direction == 'sendonly': # file transfer 'pull' try: file = next( file for file in room.files if file.hash == transfer_stream.file_selector.hash) except StopIteration: log.info(u'Session rejected: requested file not found') session.reject(404) return try: transfer_stream.file_selector = file.file_selector except EnvironmentError as e: log.info( u'Session rejected: error opening requested file: %s' % e) session.reject(404) return else: transfer_stream.handler.save_directory = os.path.join( ConferenceConfig.file_transfer_dir.normalized, room.uri) NotificationCenter().add_observer(self, sender=session) if audio_stream: session.send_ring_indication() streams = [ stream for stream in (audio_stream, chat_stream, transfer_stream) if stream ] reactor.callLater(4 if audio_stream is not None else 0, self.accept_session, session, streams) def incoming_subscription(self, subscribe_request, data): from_header = data.headers.get('From', Null) to_header = data.headers.get('To', Null) if Null in (from_header, to_header): subscribe_request.reject(400) return if subscribe_request.event != 'conference': log.info( u'Subscription for event %s rejected: only conference event is supported' % subscribe_request.event) subscribe_request.reject(489) return try: self.validate_acl(data.request_uri, from_header.uri) except ACLValidationError: try: self.validate_acl(to_header.uri, from_header.uri) except ACLValidationError: # Check if we need to skip the ACL because this was an invited participant if not (str( from_header.uri) in self.invited_participants_map.get( '%s@%s' % (data.request_uri.user, data.request_uri.host), {}) or str(from_header.uri) in self.invited_participants_map.get( '%s@%s' % (to_header.uri.user, to_header.uri.host), {})): log.info( u'Subscription rejected: unauthorized by access list') subscribe_request.reject(403) return try: room = self.get_room(data.request_uri) except RoomNotFoundError: try: room = self.get_room(to_header.uri) except RoomNotFoundError: log.info(u'Subscription rejected: room not yet created') subscribe_request.reject(480) return if not room.started: log.info(u'Subscription rejected: room not started yet') subscribe_request.reject(480) else: room.handle_incoming_subscription(subscribe_request, data) def incoming_referral(self, refer_request, data): from_header = data.headers.get('From', Null) to_header = data.headers.get('To', Null) refer_to_header = data.headers.get('Refer-To', Null) if Null in (from_header, to_header, refer_to_header): refer_request.reject(400) return log.info(u'Room %s - join request from %s to %s' % ('%s@%s' % (to_header.uri.user, to_header.uri.host), from_header.uri, refer_to_header.uri)) try: self.validate_acl(data.request_uri, from_header.uri) except ACLValidationError: log.info( u'Room %s - invite participant request rejected: unauthorized by access list' % data.request_uri) refer_request.reject(403) return referral_handler = IncomingReferralHandler(refer_request, data) referral_handler.start() def incoming_message(self, message_request, data): log.info(u'SIP MESSAGE is not supported, use MSRP media instead') message_request.answer(405) def accept_session(self, session, streams): if session.state == 'incoming': try: session.accept(streams, is_focus=True) except IllegalStateError: pass def add_participant(self, session, room_uri): # Keep track of the invited participants, we must skip ACL policy # for SUBSCRIBE requests room_uri_str = '%s@%s' % (room_uri.user, room_uri.host) log.info(u'Room %s - outgoing session to %s started' % (room_uri_str, session.remote_identity.uri)) d = self.invited_participants_map.setdefault(room_uri_str, {}) d.setdefault(str(session.remote_identity.uri), 0) d[str(session.remote_identity.uri)] += 1 NotificationCenter().add_observer(self, sender=session) room = self.get_room(room_uri, True) room.start() room.add_session(session) def remove_participant(self, participant_uri, room_uri): try: room = self.get_room(room_uri) except RoomNotFoundError: pass else: log.info('Room %s - %s removed from conference' % (room_uri, participant_uri)) room.terminate_sessions(participant_uri) def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidStart(self, notification): session = notification.sender room = self.get_room(session.request_uri, True) room.start() room.add_session(session) @run_in_green_thread def _NH_SIPSessionDidEnd(self, notification): session = notification.sender notification.center.remove_observer(self, sender=session) if session.direction == 'incoming': room_uri = session.request_uri else: # Clear invited participants mapping room_uri_str = '%s@%s' % (session.local_identity.uri.user, session.local_identity.uri.host) d = self.invited_participants_map[room_uri_str] d[str(session.remote_identity.uri)] -= 1 if d[str(session.remote_identity.uri)] == 0: del d[str(session.remote_identity.uri)] room_uri = session.local_identity.uri # We could get this notifiction even if we didn't get SIPSessionDidStart try: room = self.get_room(room_uri) except RoomNotFoundError: return if session in room.sessions: room.remove_session(session) if not room.stopping and room.empty: self.remove_room(room_uri) room.stop() def _NH_SIPSessionDidFail(self, notification): session = notification.sender notification.center.remove_observer(self, sender=session) log.info(u'Session from %s failed: %s' % (session.remote_identity.uri, notification.data.reason))
class ConferenceApplication(SylkApplication): implements(IObserver) def __init__(self): self._rooms = {} self.invited_participants_map = {} self.bonjour_focus_service = Null self.bonjour_room_service = Null self.web = Null def start(self): self.web = ConferenceWeb(self) web_server.register_resource("conference", self.web.resource()) # cleanup old files for path in (ConferenceConfig.file_transfer_dir, ConferenceConfig.screensharing_images_dir): try: shutil.rmtree(path) except EnvironmentError: pass if ServerConfig.enable_bonjour and ServerConfig.default_application == "conference": self.bonjour_focus_service = BonjourService(service="sipfocus") self.bonjour_focus_service.start() log.msg("Bonjour publication started for service 'sipfocus'") self.bonjour_room_service = BonjourService(service="sipuri", name="Conference Room", uri_user="******") self.bonjour_room_service.start() self.bonjour_room_service.presence_state = BonjourPresenceState("available", u"No participants") log.msg("Bonjour publication started for service 'sipuri'") def stop(self): self.bonjour_focus_service.stop() self.bonjour_room_service.stop() def get_room(self, uri, create=False): room_uri = "%s@%s" % (uri.user, uri.host) try: room = self._rooms[room_uri] except KeyError: if create: room = Room(room_uri) self._rooms[room_uri] = room return room else: raise RoomNotFoundError else: return room def remove_room(self, uri): room_uri = "%s@%s" % (uri.user, uri.host) self._rooms.pop(room_uri, None) def validate_acl(self, room_uri, from_uri): room_uri = "%s@%s" % (room_uri.user, room_uri.host) cfg = get_room_config(room_uri) if cfg.access_policy == "allow,deny": if cfg.allow.match(from_uri) and not cfg.deny.match(from_uri): return raise ACLValidationError else: if cfg.deny.match(from_uri) and not cfg.allow.match(from_uri): raise ACLValidationError def incoming_session(self, session): log.msg("New session from %s to %s" % (session.remote_identity.uri, session.local_identity.uri)) audio_streams = [stream for stream in session.proposed_streams if stream.type == "audio"] chat_streams = [stream for stream in session.proposed_streams if stream.type == "chat"] transfer_streams = [stream for stream in session.proposed_streams if stream.type == "file-transfer"] if not audio_streams and not chat_streams and not transfer_streams: log.msg(u"Session rejected: invalid media, only RTP audio and MSRP chat are supported") session.reject(488) return audio_stream = audio_streams[0] if audio_streams else None chat_stream = chat_streams[0] if chat_streams else None transfer_stream = transfer_streams[0] if transfer_streams else None try: self.validate_acl(session.request_uri, session.remote_identity.uri) except ACLValidationError: log.msg(u"Session rejected: unauthorized by access list") session.reject(403) return if transfer_stream is not None: try: room = self.get_room(session.request_uri) except RoomNotFoundError: log.msg(u"Session rejected: room not found") session.reject(404) return if transfer_stream.direction == "sendonly": # file transfer 'pull' try: file = next(file for file in room.files if file.hash == transfer_stream.file_selector.hash) except StopIteration: log.msg(u"Session rejected: requested file not found") session.reject(404) return try: transfer_stream.file_selector = file.file_selector except EnvironmentError, e: log.msg(u"Session rejected: error opening requested file: %s" % e) session.reject(404) return else: transfer_stream.handler.save_directory = os.path.join( ConferenceConfig.file_transfer_dir.normalized, room.uri ) NotificationCenter().add_observer(self, sender=session) if audio_stream: session.send_ring_indication() streams = [stream for stream in (audio_stream, chat_stream, transfer_stream) if stream] reactor.callLater(4 if audio_stream is not None else 0, self.accept_session, session, streams)
class ConferenceApplication(SylkApplication): implements(IObserver) def __init__(self): self._rooms = {} self.invited_participants_map = {} self.bonjour_focus_service = Null self.bonjour_room_service = Null self.web = Null def start(self): self.web = ConferenceWeb(self) web_server.register_resource('conference', self.web.resource()) # cleanup old files for path in (ConferenceConfig.file_transfer_dir, ConferenceConfig.screensharing_images_dir): try: shutil.rmtree(path) except EnvironmentError: pass if ServerConfig.enable_bonjour and ServerConfig.default_application == 'conference': self.bonjour_focus_service = BonjourService(service='sipfocus') self.bonjour_focus_service.start() log.msg("Bonjour publication started for service 'sipfocus'") self.bonjour_room_service = BonjourService(service='sipuri', name='Conference Room', uri_user='******') self.bonjour_room_service.start() self.bonjour_room_service.presence_state = BonjourPresenceState('available', u'No participants') log.msg("Bonjour publication started for service 'sipuri'") def stop(self): self.bonjour_focus_service.stop() self.bonjour_room_service.stop() def get_room(self, uri, create=False): room_uri = '%s@%s' % (uri.user, uri.host) try: room = self._rooms[room_uri] except KeyError: if create: room = Room(room_uri) self._rooms[room_uri] = room return room else: raise RoomNotFoundError else: return room def remove_room(self, uri): room_uri = '%s@%s' % (uri.user, uri.host) self._rooms.pop(room_uri, None) def validate_acl(self, room_uri, from_uri): room_uri = '%s@%s' % (room_uri.user, room_uri.host) cfg = get_room_config(room_uri) if cfg.access_policy == 'allow,deny': if cfg.allow.match(from_uri) and not cfg.deny.match(from_uri): return raise ACLValidationError else: if cfg.deny.match(from_uri) and not cfg.allow.match(from_uri): raise ACLValidationError def incoming_session(self, session): log.msg('New session from %s to %s' % (session.remote_identity.uri, session.local_identity.uri)) audio_streams = [stream for stream in session.proposed_streams if stream.type=='audio'] chat_streams = [stream for stream in session.proposed_streams if stream.type=='chat'] transfer_streams = [stream for stream in session.proposed_streams if stream.type=='file-transfer'] if not audio_streams and not chat_streams and not transfer_streams: log.msg(u'Session rejected: invalid media, only RTP audio and MSRP chat are supported') session.reject(488) return audio_stream = audio_streams[0] if audio_streams else None chat_stream = chat_streams[0] if chat_streams else None transfer_stream = transfer_streams[0] if transfer_streams else None try: self.validate_acl(session.request_uri, session.remote_identity.uri) except ACLValidationError: log.msg(u'Session rejected: unauthorized by access list') session.reject(403) return if transfer_stream is not None: try: room = self.get_room(session.request_uri) except RoomNotFoundError: log.msg(u'Session rejected: room not found') session.reject(404) return if transfer_stream.direction == 'sendonly': # file transfer 'pull' try: file = next(file for file in room.files if file.hash == transfer_stream.file_selector.hash) except StopIteration: log.msg(u'Session rejected: requested file not found') session.reject(404) return try: transfer_stream.file_selector = file.file_selector except EnvironmentError, e: log.msg(u'Session rejected: error opening requested file: %s' % e) session.reject(404) return else: transfer_stream.handler.save_directory = os.path.join(ConferenceConfig.file_transfer_dir.normalized, room.uri) NotificationCenter().add_observer(self, sender=session) if audio_stream: session.send_ring_indication() streams = [stream for stream in (audio_stream, chat_stream, transfer_stream) if stream] reactor.callLater(4 if audio_stream is not None else 0, self.accept_session, session, streams)