class MediaSessionHandler(object): implements(IObserver) def __init__(self): self.started = False self.ended = False self._sip_identity = None self._xmpp_identity = None self._audio_bidge = AudioConference() self.sip_session = None self.jingle_session = None @classmethod def new_from_sip_session(cls, session): proposed_stream_types = set( [stream.type for stream in session.proposed_streams]) streams = [] for stream_type in proposed_stream_types: try: klass = JingleMediaStreamRegistry.get(stream_type) except Exception: continue streams.append(klass()) if not streams: session.reject(488) return None session.send_ring_indication() instance = cls() NotificationCenter().add_observer(instance, sender=session) # Get URI representing the SIP side contact_uri = session._invitation.remote_contact_header.uri if contact_uri.parameters.get('gr') is not None: sip_leg_uri = FrozenURI(contact_uri.user, contact_uri.host, contact_uri.parameters.get('gr')) else: tmp = session.remote_identity.uri sip_leg_uri = FrozenURI(tmp.user, tmp.host, generate_sylk_resource()) instance._sip_identity = Identity(sip_leg_uri) # Get URI representing the XMPP side request_uri = session.request_uri remote_resource = request_uri.parameters.get('gr', None) if remote_resource is not None: try: remote_resource = decode_resource(remote_resource) except (TypeError, UnicodeError): remote_resource = None xmpp_leg_uri = FrozenURI(request_uri.user, request_uri.host, remote_resource) instance._xmpp_identity = Identity(xmpp_leg_uri) instance.sip_session = session instance._start_outgoing_jingle_session(streams) return instance @classmethod def new_from_jingle_session(cls, session): proposed_stream_types = set( [stream.type for stream in session.proposed_streams]) streams = [] for stream_type in proposed_stream_types: try: klass = SIPMediaStreamRegistry.get(stream_type) except Exception: continue streams.append(klass()) if not streams: session.reject('unsupported-applications') return None session.send_ring_indication() instance = cls() NotificationCenter().add_observer(instance, sender=session) instance._xmpp_identity = session.remote_identity instance._sip_identity = session.local_identity instance.jingle_session = session instance._start_outgoing_sip_session(streams) return instance @property def sip_identity(self): return self._sip_identity @property def xmpp_identity(self): return self._xmpp_identity def _set_started(self, value): old_value = self.__dict__.get('started', False) self.__dict__['started'] = value if not old_value and value: NotificationCenter().post_notification( 'MediaSessionHandlerDidStart', sender=self) def _get_started(self): return self.__dict__['started'] started = property(_get_started, _set_started) del _get_started, _set_started @run_in_green_thread def _start_outgoing_sip_session(self, streams): notification_center = NotificationCenter() # self.xmpp_identity is our local identity on the SIP side from_uri = self.xmpp_identity.uri.as_sip_uri() from_uri.parameters.pop('gr', None) # no GRUU in From header to_uri = self.sip_identity.uri.as_sip_uri() to_uri.parameters.pop('gr', None) # no GRUU in To header # TODO: need to fix GRUU in the proxy #contact_uri = self.xmpp_identity.uri.as_sip_uri() #contact_uri.parameters['gr'] = encode_resource(contact_uri.parameters['gr'].decode('utf-8')) lookup = DNSLookup() settings = SIPSimpleSettings() account = DefaultAccount() if account.sip.outbound_proxy is not None: uri = SIPURI( host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = to_uri try: routes = lookup.lookup_sip_proxy( uri, settings.sip.transport_list).wait() except DNSLookupError: log.warning('DNS lookup error while looking for %s proxy' % uri) notification_center.post_notification( 'MedialSessionHandlerDidFail', sender=self, data=NotificationData(reason='DNS lookup error')) return route = routes.pop(0) from_header = FromHeader(from_uri) to_header = ToHeader(to_uri) self.sip_session = Session(account) notification_center.add_observer(self, sender=self.sip_session) self.sip_session.connect(from_header, to_header, route=route, streams=streams) @run_in_green_thread def _start_outgoing_jingle_session(self, streams): if self.xmpp_identity.uri.resource is not None: self.sip_session.reject() return xmpp_manager = XMPPManager() local_jid = self.sip_identity.uri.as_xmpp_jid() remote_jid = self.xmpp_identity.uri.as_xmpp_jid() # If this was an invitation to a conference, use the information in the Referred-By header if self.sip_identity.uri.host in xmpp_manager.muc_domains and self.sip_session.transfer_info and self.sip_session.transfer_info.referred_by: try: referred_by_uri = SIPURI.parse( self.sip_session.transfer_info.referred_by) except SIPCoreError: self.sip_session.reject(488) return else: inviter_uri = FrozenURI(referred_by_uri.user, referred_by_uri.host) local_jid = inviter_uri.as_xmpp_jid() # Use disco to gather potential JIDs to call d = xmpp_manager.disco_client_protocol.requestItems(remote_jid, sender=local_jid) try: items = block_on(d) except Exception: items = [] if not items: self.sip_session.reject(480) return # Check which items support Jingle valid = [] for item in items: d = xmpp_manager.disco_client_protocol.requestInfo( item.entity, nodeIdentifier=item.nodeIdentifier, sender=local_jid) try: info = block_on(d) except Exception: continue if jingle.NS_JINGLE in info.features and jingle.NS_JINGLE_APPS_RTP in info.features: valid.append(item.entity) if not valid: self.sip_session.reject(480) return # TODO: start multiple sessions? self._xmpp_identity = Identity(FrozenURI.parse(valid[0])) notification_center = NotificationCenter() if self.sip_identity.uri.host in xmpp_manager.muc_domains: self.jingle_session = JingleSession( xmpp_manager.jingle_coin_protocol) else: self.jingle_session = JingleSession(xmpp_manager.jingle_protocol) notification_center.add_observer(self, sender=self.jingle_session) self.jingle_session.connect(self.sip_identity, self.xmpp_identity, streams, is_focus=self.sip_session.remote_focus) def end(self): if self.ended: return notification_center = NotificationCenter() if self.sip_session is not None: notification_center.remove_observer(self, sender=self.sip_session) if self.sip_session.direction == 'incoming' and not self.started: self.sip_session.reject() else: self.sip_session.end() self.sip_session = None if self.jingle_session is not None: notification_center.remove_observer(self, sender=self.jingle_session) if self.jingle_session.direction == 'incoming' and not self.started: self.jingle_session.reject() else: self.jingle_session.end() self.jingle_session = None self.ended = True if self.started: notification_center.post_notification('MediaSessionHandlerDidEnd', sender=self) else: notification_center.post_notification('MediaSessionHandlerDidFail', sender=self) @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidStart(self, notification): log.info("SIP session %s started" % self.sip_session.call_id) if self.sip_session.direction == 'outgoing': # Time to accept the Jingle session and bridge them together try: audio_stream = next(stream for stream in self.sip_session.streams if stream.type == 'audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) self.jingle_session.accept(self.jingle_session.proposed_streams, is_focus=self.sip_session.remote_focus) else: # Both sessions have been accepted now self.started = True try: audio_stream = next(stream for stream in self.sip_session.streams if stream.type == 'audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) def _NH_SIPSessionDidEnd(self, notification): log.info("SIP session %s ended" % self.sip_session.call_id) notification.center.remove_observer(self, sender=self.sip_session) self.sip_session = None self.end() def _NH_SIPSessionDidFail(self, notification): log.info("SIP session %s failed (%s)" % (self.sip_session.call_id, notification.data.reason)) notification.center.remove_observer(self, sender=self.sip_session) self.sip_session = None self.end() def _NH_SIPSessionNewProposal(self, notification): if notification.data.originator == 'remote': self.sip_session.reject_proposal() def _NH_SIPSessionTransferNewIncoming(self, notification): self.sip_session.reject_transfer(403) def _NH_SIPSessionDidChangeHoldState(self, notification): if notification.data.originator == 'remote': if notification.data.on_hold: self.jingle_session.hold() else: self.jingle_session.unhold() def _NH_SIPSessionGotConferenceInfo(self, notification): self.jingle_session._send_conference_info( notification.data.conference_info.toxml()) def _NH_JingleSessionDidStart(self, notification): log.info("Jingle session %s started" % notification.sender.id) if self.jingle_session.direction == 'incoming': # Both sessions have been accepted now self.started = True try: audio_stream = next(stream for stream in self.jingle_session.streams if stream.type == 'audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) else: # Time to accept the Jingle session and bridge them together try: audio_stream = next(stream for stream in self.jingle_session.streams if stream.type == 'audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) self.sip_session.accept(self.sip_session.proposed_streams) def _NH_JingleSessionDidEnd(self, notification): log.info("Jingle session %s ended" % notification.sender.id) notification.center.remove_observer(self, sender=self.jingle_session) self.jingle_session = None self.end() def _NH_JingleSessionDidFail(self, notification): log.info("Jingle session %s failed (%s)" % (notification.sender.id, notification.data.reason)) notification.center.remove_observer(self, sender=self.jingle_session) self.jingle_session = None self.end() def _NH_JingleSessionDidChangeHoldState(self, notification): if notification.data.originator == 'remote': if notification.data.on_hold: self.sip_session.hold() else: self.sip_session.unhold()
class ChatSessionHandler(object): implements(IObserver) sip_identity = WriteOnceAttribute() xmpp_identity = WriteOnceAttribute() def __init__(self): self.started = False self.ended = False self.sip_session = None self.msrp_stream = None self._sip_session_timer = None self.use_receipts = False self.xmpp_session = None self._xmpp_message_queue = deque() self._pending_msrp_chunks = {} self._pending_xmpp_stanzas = {} def _get_started(self): return self.__dict__['started'] def _set_started(self, value): old_value = self.__dict__.get('started', False) self.__dict__['started'] = value if not old_value and value: NotificationCenter().post_notification('ChatSessionDidStart', sender=self) self._send_queued_messages() started = property(_get_started, _set_started) del _get_started, _set_started def _get_xmpp_session(self): return self.__dict__['xmpp_session'] def _set_xmpp_session(self, session): self.__dict__['xmpp_session'] = session if session is not None: # Reet SIP session timer in case it's active if self._sip_session_timer is not None and self._sip_session_timer.active( ): self._sip_session_timer.reset(SESSION_TIMEOUT) NotificationCenter().add_observer(self, sender=session) session.start() # Reet SIP session timer in case it's active if self._sip_session_timer is not None and self._sip_session_timer.active( ): self._sip_session_timer.reset(SESSION_TIMEOUT) xmpp_session = property(_get_xmpp_session, _set_xmpp_session) del _get_xmpp_session, _set_xmpp_session @classmethod def new_from_sip_session(cls, sip_identity, session): instance = cls() instance.sip_identity = sip_identity instance._start_incoming_sip_session(session) return instance @classmethod def new_from_xmpp_stanza(cls, xmpp_identity, recipient): instance = cls() instance.xmpp_identity = xmpp_identity instance._start_outgoing_sip_session(recipient) return instance @run_in_green_thread def _start_incoming_sip_session(self, session): self.sip_session = session self.msrp_stream = next(stream for stream in session.proposed_streams if stream.type == 'chat') notification_center = NotificationCenter() notification_center.add_observer(self, sender=self.sip_session) notification_center.add_observer(self, sender=self.msrp_stream) self.sip_session.accept([self.msrp_stream]) @run_in_green_thread def _start_outgoing_sip_session(self, target_uri): notification_center = NotificationCenter() # self.xmpp_identity is our local identity from_uri = self.xmpp_identity.uri.as_sip_uri() del from_uri.parameters['gr'] # no GRUU in From header contact_uri = self.xmpp_identity.uri.as_sip_uri() contact_uri.parameters['gr'] = encode_resource( contact_uri.parameters['gr'].decode('utf-8')) to_uri = target_uri.as_sip_uri() lookup = DNSLookup() settings = SIPSimpleSettings() account = DefaultAccount() if account.sip.outbound_proxy is not None: uri = SIPURI( host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = to_uri try: routes = lookup.lookup_sip_proxy( uri, settings.sip.transport_list).wait() except DNSLookupError: log.warning('DNS lookup error while looking for %s proxy' % uri) notification_center.post_notification( 'ChatSessionDidFail', sender=self, data=NotificationData(reason='DNS lookup error')) return self.msrp_stream = MediaStreamRegistry.get('chat')() route = routes.pop(0) from_header = FromHeader(from_uri) to_header = ToHeader(to_uri) contact_header = ContactHeader(contact_uri) self.sip_session = Session(account) notification_center.add_observer(self, sender=self.sip_session) notification_center.add_observer(self, sender=self.msrp_stream) self.sip_session.connect(from_header, to_header, contact_header=contact_header, route=route, streams=[self.msrp_stream]) def end(self): if self.ended: return if self._sip_session_timer is not None and self._sip_session_timer.active( ): self._sip_session_timer.cancel() self._sip_session_timer = None notification_center = NotificationCenter() if self.sip_session is not None: notification_center.remove_observer(self, sender=self.sip_session) notification_center.remove_observer(self, sender=self.msrp_stream) self.sip_session.end() self.sip_session = None self.msrp_stream = None if self.xmpp_session is not None: notification_center.remove_observer(self, sender=self.xmpp_session) self.xmpp_session.end() self.xmpp_session = None self.ended = True if self.started: notification_center.post_notification('ChatSessionDidEnd', sender=self) else: notification_center.post_notification( 'ChatSessionDidFail', sender=self, data=NotificationData(reason='Ended before actually started')) def enqueue_xmpp_message(self, message): self._xmpp_message_queue.append(message) if self.started: self._send_queued_messages() def _send_queued_messages(self): sender = None while self._xmpp_message_queue: message = self._xmpp_message_queue.popleft() if message.body is None: continue sender_uri = message.sender.uri.as_sip_uri() sender_uri.parameters['gr'] = encode_resource( sender_uri.parameters['gr'].decode('utf-8')) sender = ChatIdentity(sender_uri) self.msrp_stream.send_message(message.body, 'text/plain', sender=sender, message_id=str(message.id), notify_progress=message.use_receipt) if sender: self.msrp_stream.send_composing_indication('idle', 30, sender=sender) def _inactivity_timeout(self): log.info("Ending SIP session %s due to inactivity" % self.sip_session.call_id) self.sip_session.end() def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidStart(self, notification): log.info("SIP session %s started" % self.sip_session.call_id) self._sip_session_timer = reactor.callLater(SESSION_TIMEOUT, self._inactivity_timeout) if self.sip_session.direction == 'outgoing': # Time to set sip_identity and create the XMPPChatSession contact_uri = self.sip_session._invitation.remote_contact_header.uri if contact_uri.parameters.get('gr') is not None: sip_leg_uri = FrozenURI(contact_uri.user, contact_uri.host, contact_uri.parameters.get('gr')) else: tmp = self.sip_session.remote_identity.uri sip_leg_uri = FrozenURI(tmp.user, tmp.host, generate_sylk_resource()) self.sip_identity = Identity( sip_leg_uri, self.sip_session.remote_identity.display_name) session = XMPPChatSession(local_identity=self.sip_identity, remote_identity=self.xmpp_identity) self.xmpp_session = session # Session is now established on both ends self.started = True # Try to wakeup XMPP clients self.xmpp_session.send_composing_indication('active') self.xmpp_session.send_message(' ', 'text/plain') else: if self.xmpp_session is not None: # Session is now established on both ends self.started = True # Try to wakeup XMPP clients self.xmpp_session.send_composing_indication('active') self.xmpp_session.send_message(' ', 'text/plain') else: # Try to wakeup XMPP clients sender = self.sip_identity tmp = self.sip_session.local_identity.uri recipient_uri = FrozenURI(tmp.user, tmp.host) recipient = Identity(recipient_uri) xmpp_manager = XMPPManager() xmpp_manager.send_stanza( ChatMessage(sender, recipient, ' ', 'text/plain')) # Send queued messages self._send_queued_messages() def _NH_SIPSessionDidEnd(self, notification): log.info("SIP session %s ended" % self.sip_session.call_id) notification.center.remove_observer(self, sender=self.sip_session) notification.center.remove_observer(self, sender=self.msrp_stream) self.sip_session = None self.msrp_stream = None self.end() def _NH_SIPSessionDidFail(self, notification): log.info("SIP session %s failed" % self.sip_session.call_id) notification.center.remove_observer(self, sender=self.sip_session) notification.center.remove_observer(self, sender=self.msrp_stream) self.sip_session = None self.msrp_stream = None self.end() def _NH_SIPSessionNewProposal(self, notification): if notification.data.originator == 'remote': self.sip_session.reject_proposal() def _NH_SIPSessionTransferNewIncoming(self, notification): self.sip_session.reject_transfer(403) def _NH_ChatStreamGotMessage(self, notification): # Notification is sent by the MSRP stream message = notification.data.message content_type = message.content_type.lower() if content_type not in ('text/plain', 'text/html'): return if content_type == 'text/plain': html_body = None body = message.content else: html_body = message.content body = None if self._sip_session_timer is not None and self._sip_session_timer.active( ): self._sip_session_timer.reset(SESSION_TIMEOUT) chunk = notification.data.chunk if self.started: self.xmpp_session.send_message(body, html_body, message_id=chunk.message_id) if self.use_receipts: self._pending_msrp_chunks[chunk.message_id] = chunk else: self.msrp_stream.msrp_session.send_report(chunk, 200, 'OK') else: sender = self.sip_identity recipient_uri = FrozenURI.parse(message.recipients[0].uri) recipient = Identity(recipient_uri, message.recipients[0].display_name) xmpp_manager = XMPPManager() xmpp_manager.send_stanza( ChatMessage(sender, recipient, body, html_body)) self.msrp_stream.msrp_session.send_report(chunk, 200, 'OK') def _NH_ChatStreamGotComposingIndication(self, notification): # Notification is sent by the MSRP stream if self._sip_session_timer is not None and self._sip_session_timer.active( ): self._sip_session_timer.reset(SESSION_TIMEOUT) if not self.started: return state = None if notification.data.state == 'active': state = 'composing' elif notification.data.state == 'idle': state = 'paused' if state is not None: self.xmpp_session.send_composing_indication(state) def _NH_ChatStreamDidDeliverMessage(self, notification): if self.started: message = self._pending_xmpp_stanzas.pop( notification.data.message_id, None) if message is not None: self.xmpp_session.send_receipt_acknowledgement(message.id) def _NH_ChatStreamDidNotDeliverMessage(self, notification): if self.started: message = self._pending_xmpp_stanzas.pop( notification.data.message_id, None) if message is not None: self.xmpp_session.send_error(message, 'TODO', []) # TODO def _NH_XMPPChatSessionDidStart(self, notification): if self.sip_session is not None: # Session is now established on both ends self.started = True def _NH_XMPPChatSessionDidEnd(self, notification): notification.center.remove_observer(self, sender=self.xmpp_session) self.xmpp_session = None self.end() def _NH_XMPPChatSessionGotMessage(self, notification): if self.sip_session is None or self.sip_session.state != 'connected': self._xmpp_message_queue.append(notification.data.message) return if self._sip_session_timer is not None and self._sip_session_timer.active( ): self._sip_session_timer.reset(SESSION_TIMEOUT) message = notification.data.message sender_uri = message.sender.uri.as_sip_uri() del sender_uri.parameters['gr'] # no GRUU in CPIM From header sender = ChatIdentity(sender_uri) self.use_receipts = message.use_receipt if not message.use_receipt: notify_progress = False else: notify_progress = True self._pending_xmpp_stanzas[message.id] = message # Prefer plaintext self.msrp_stream.send_message(message.body, 'text/plain', sender=sender, message_id=str(message.id), notify_progress=notify_progress) self.msrp_stream.send_composing_indication('idle', 30, sender=sender) def _NH_XMPPChatSessionGotComposingIndication(self, notification): if self.sip_session is None or self.sip_session.state != 'connected': return if self._sip_session_timer is not None and self._sip_session_timer.active( ): self._sip_session_timer.reset(SESSION_TIMEOUT) message = notification.data.message state = None if message.state == 'composing': state = 'active' elif message.state == 'paused': state = 'idle' if state is not None: sender_uri = message.sender.uri.as_sip_uri() del sender_uri.parameters['gr'] # no GRUU in CPIM From header sender = ChatIdentity(sender_uri) self.msrp_stream.send_composing_indication(state, 30, sender=sender) if message.use_receipt: self.xmpp_session.send_receipt_acknowledgement(message.id) def _NH_XMPPChatSessionDidDeliverMessage(self, notification): chunk = self._pending_msrp_chunks.pop(notification.data.message_id, None) if chunk is not None: self.msrp_stream.msrp_session.send_report(chunk, 200, 'OK') def _NH_XMPPChatSessionDidNotDeliverMessage(self, notification): chunk = self._pending_msrp_chunks.pop(notification.data.message_id, None) if chunk is not None: self.msrp_stream.msrp_session.send_report(chunk, notification.data.code, notification.data.reason)
class MediaSessionHandler(object): implements(IObserver) def __init__(self): self.started = False self.ended = False self._sip_identity = None self._xmpp_identity = None self._audio_bidge = AudioConference() self.sip_session = None self.jingle_session = None @classmethod def new_from_sip_session(cls, session): proposed_stream_types = set([stream.type for stream in session.proposed_streams]) streams = [] for stream_type in proposed_stream_types: try: klass = JingleMediaStreamRegistry.get(stream_type) except Exception: continue streams.append(klass()) if not streams: session.reject(488) return None session.send_ring_indication() instance = cls() NotificationCenter().add_observer(instance, sender=session) # Get URI representing the SIP side contact_uri = session._invitation.remote_contact_header.uri if contact_uri.parameters.get('gr') is not None: sip_leg_uri = FrozenURI(contact_uri.user, contact_uri.host, contact_uri.parameters.get('gr')) else: tmp = session.remote_identity.uri sip_leg_uri = FrozenURI(tmp.user, tmp.host, generate_sylk_resource()) instance._sip_identity = Identity(sip_leg_uri) # Get URI representing the XMPP side request_uri = session.request_uri remote_resource = request_uri.parameters.get('gr', None) if remote_resource is not None: try: remote_resource = decode_resource(remote_resource) except (TypeError, UnicodeError): remote_resource = None xmpp_leg_uri = FrozenURI(request_uri.user, request_uri.host, remote_resource) instance._xmpp_identity = Identity(xmpp_leg_uri) instance.sip_session = session instance._start_outgoing_jingle_session(streams) return instance @classmethod def new_from_jingle_session(cls, session): proposed_stream_types = set([stream.type for stream in session.proposed_streams]) streams = [] for stream_type in proposed_stream_types: try: klass = SIPMediaStreamRegistry.get(stream_type) except Exception: continue streams.append(klass()) if not streams: session.reject('unsupported-applications') return None session.send_ring_indication() instance = cls() NotificationCenter().add_observer(instance, sender=session) instance._xmpp_identity = session.remote_identity instance._sip_identity = session.local_identity instance.jingle_session = session instance._start_outgoing_sip_session(streams) return instance @property def sip_identity(self): return self._sip_identity @property def xmpp_identity(self): return self._xmpp_identity def _set_started(self, value): old_value = self.__dict__.get('started', False) self.__dict__['started'] = value if not old_value and value: NotificationCenter().post_notification('MediaSessionHandlerDidStart', sender=self) def _get_started(self): return self.__dict__['started'] started = property(_get_started, _set_started) del _get_started, _set_started @run_in_green_thread def _start_outgoing_sip_session(self, streams): notification_center = NotificationCenter() # self.xmpp_identity is our local identity on the SIP side from_uri = self.xmpp_identity.uri.as_sip_uri() from_uri.parameters.pop('gr', None) # no GRUU in From header to_uri = self.sip_identity.uri.as_sip_uri() to_uri.parameters.pop('gr', None) # no GRUU in To header # TODO: need to fix GRUU in the proxy #contact_uri = self.xmpp_identity.uri.as_sip_uri() #contact_uri.parameters['gr'] = encode_resource(contact_uri.parameters['gr'].decode('utf-8')) lookup = DNSLookup() settings = SIPSimpleSettings() account = DefaultAccount() if account.sip.outbound_proxy is not None: uri = SIPURI(host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = to_uri try: routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait() except DNSLookupError: log.warning('DNS lookup error while looking for %s proxy' % uri) notification_center.post_notification('MedialSessionHandlerDidFail', sender=self, data=NotificationData(reason='DNS lookup error')) return route = routes.pop(0) from_header = FromHeader(from_uri) to_header = ToHeader(to_uri) self.sip_session = Session(account) notification_center.add_observer(self, sender=self.sip_session) self.sip_session.connect(from_header, to_header, route=route, streams=streams) @run_in_green_thread def _start_outgoing_jingle_session(self, streams): if self.xmpp_identity.uri.resource is not None: self.sip_session.reject() return xmpp_manager = XMPPManager() local_jid = self.sip_identity.uri.as_xmpp_jid() remote_jid = self.xmpp_identity.uri.as_xmpp_jid() # If this was an invitation to a conference, use the information in the Referred-By header if self.sip_identity.uri.host in xmpp_manager.muc_domains and self.sip_session.transfer_info and self.sip_session.transfer_info.referred_by: try: referred_by_uri = SIPURI.parse(self.sip_session.transfer_info.referred_by) except SIPCoreError: self.sip_session.reject(488) return else: inviter_uri = FrozenURI(referred_by_uri.user, referred_by_uri.host) local_jid = inviter_uri.as_xmpp_jid() # Use disco to gather potential JIDs to call d = xmpp_manager.disco_client_protocol.requestItems(remote_jid, sender=local_jid) try: items = block_on(d) except Exception: items = [] if not items: self.sip_session.reject(480) return # Check which items support Jingle valid = [] for item in items: d = xmpp_manager.disco_client_protocol.requestInfo(item.entity, nodeIdentifier=item.nodeIdentifier, sender=local_jid) try: info = block_on(d) except Exception: continue if jingle.NS_JINGLE in info.features and jingle.NS_JINGLE_APPS_RTP in info.features: valid.append(item.entity) if not valid: self.sip_session.reject(480) return # TODO: start multiple sessions? self._xmpp_identity = Identity(FrozenURI.parse(valid[0])) notification_center = NotificationCenter() if self.sip_identity.uri.host in xmpp_manager.muc_domains: self.jingle_session = JingleSession(xmpp_manager.jingle_coin_protocol) else: self.jingle_session = JingleSession(xmpp_manager.jingle_protocol) notification_center.add_observer(self, sender=self.jingle_session) self.jingle_session.connect(self.sip_identity, self.xmpp_identity, streams, is_focus=self.sip_session.remote_focus) def end(self): if self.ended: return notification_center = NotificationCenter() if self.sip_session is not None: notification_center.remove_observer(self, sender=self.sip_session) if self.sip_session.direction == 'incoming' and not self.started: self.sip_session.reject() else: self.sip_session.end() self.sip_session = None if self.jingle_session is not None: notification_center.remove_observer(self, sender=self.jingle_session) if self.jingle_session.direction == 'incoming' and not self.started: self.jingle_session.reject() else: self.jingle_session.end() self.jingle_session = None self.ended = True if self.started: notification_center.post_notification('MediaSessionHandlerDidEnd', sender=self) else: notification_center.post_notification('MediaSessionHandlerDidFail', sender=self) @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidStart(self, notification): log.msg("SIP session %s started" % self.sip_session.call_id) if self.sip_session.direction == 'outgoing': # Time to accept the Jingle session and bridge them together try: audio_stream = next(stream for stream in self.sip_session.streams if stream.type=='audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) self.jingle_session.accept(self.jingle_session.proposed_streams, is_focus=self.sip_session.remote_focus) else: # Both sessions have been accepted now self.started = True try: audio_stream = next(stream for stream in self.sip_session.streams if stream.type=='audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) def _NH_SIPSessionDidEnd(self, notification): log.msg("SIP session %s ended" % self.sip_session.call_id) notification.center.remove_observer(self, sender=self.sip_session) self.sip_session = None self.end() def _NH_SIPSessionDidFail(self, notification): log.msg("SIP session %s failed (%s)" % (self.sip_session.call_id, notification.data.reason)) notification.center.remove_observer(self, sender=self.sip_session) self.sip_session = None self.end() def _NH_SIPSessionNewProposal(self, notification): if notification.data.originator == 'remote': self.sip_session.reject_proposal() def _NH_SIPSessionTransferNewIncoming(self, notification): self.sip_session.reject_transfer(403) def _NH_SIPSessionDidChangeHoldState(self, notification): if notification.data.originator == 'remote': if notification.data.on_hold: self.jingle_session.hold() else: self.jingle_session.unhold() def _NH_SIPSessionGotConferenceInfo(self, notification): self.jingle_session._send_conference_info(notification.data.conference_info.toxml()) def _NH_JingleSessionDidStart(self, notification): log.msg("Jingle session %s started" % notification.sender.id) if self.jingle_session.direction == 'incoming': # Both sessions have been accepted now self.started = True try: audio_stream = next(stream for stream in self.jingle_session.streams if stream.type=='audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) else: # Time to accept the Jingle session and bridge them together try: audio_stream = next(stream for stream in self.jingle_session.streams if stream.type=='audio') except StopIteration: pass else: self._audio_bidge.add(audio_stream) self.sip_session.accept(self.sip_session.proposed_streams) def _NH_JingleSessionDidEnd(self, notification): log.msg("Jingle session %s ended" % notification.sender.id) notification.center.remove_observer(self, sender=self.jingle_session) self.jingle_session = None self.end() def _NH_JingleSessionDidFail(self, notification): log.msg("Jingle session %s failed (%s)" % (notification.sender.id, notification.data.reason)) notification.center.remove_observer(self, sender=self.jingle_session) self.jingle_session = None self.end() def _NH_JingleSessionDidChangeHoldState(self, notification): if notification.data.originator == 'remote': if notification.data.on_hold: self.sip_session.hold() else: self.sip_session.unhold()
class IncomingReferralHandler(object): implements(IObserver) def __init__(self, refer_request, data): self._refer_request = refer_request self._refer_headers = data.headers self.room_uri = data.request_uri self.room_uri_str = "%s@%s" % (self.room_uri.user, self.room_uri.host) self.refer_to_uri = re.sub("<|>", "", data.headers.get("Refer-To").uri) self.method = data.headers.get("Refer-To").parameters.get("method", "INVITE").upper() self.session = None self.streams = [] def start(self): if not self.refer_to_uri.startswith(("sip:", "sips:")): self.refer_to_uri = "sip:%s" % self.refer_to_uri try: self.refer_to_uri = SIPURI.parse(self.refer_to_uri) except SIPCoreError: log.msg("Room %s - failed to add %s" % (self.room_uri_str, self.refer_to_uri)) self._refer_request.reject(488) return notification_center = NotificationCenter() notification_center.add_observer(self, sender=self._refer_request) if self.method == "INVITE": self._refer_request.accept() settings = SIPSimpleSettings() account = DefaultAccount() if account.sip.outbound_proxy is not None: uri = SIPURI( host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={"transport": account.sip.outbound_proxy.transport}, ) else: uri = self.refer_to_uri lookup = DNSLookup() notification_center.add_observer(self, sender=lookup) lookup.lookup_sip_proxy(uri, settings.sip.transport_list) elif self.method == "BYE": log.msg( "Room %s - %s removed %s from the room" % (self.room_uri_str, self._refer_headers.get("From").uri, self.refer_to_uri) ) self._refer_request.accept() conference_application = ConferenceApplication() conference_application.remove_participant(self.refer_to_uri, self.room_uri) self._refer_request.end(200) else: self._refer_request.reject(488) def handle_notification(self, notification): handler = getattr(self, "_NH_%s" % notification.name, Null) handler(notification) def _NH_DNSLookupDidSucceed(self, notification): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=notification.sender) account = DefaultAccount() conference_application = ConferenceApplication() try: room = conference_application.get_room(self.room_uri) except RoomNotFoundError: log.msg("Room %s - failed to add %s" % (self.room_uri_str, self.refer_to_uri)) self._refer_request.end(500) return active_media = set(room.active_media).intersection(("audio", "chat")) if not active_media: log.msg("Room %s - failed to add %s" % (self.room_uri_str, self.refer_to_uri)) self._refer_request.end(500) return registry = MediaStreamRegistry() for stream_type in active_media: self.streams.append(registry.get(stream_type)()) self.session = Session(account) notification_center.add_observer(self, sender=self.session) original_from_header = self._refer_headers.get("From") if original_from_header.display_name: original_identity = "%s <%s@%s>" % ( original_from_header.display_name, original_from_header.uri.user, original_from_header.uri.host, ) else: original_identity = "%s@%s" % (original_from_header.uri.user, original_from_header.uri.host) from_header = FromHeader(SIPURI.new(self.room_uri), u"Conference Call") to_header = ToHeader(self.refer_to_uri) extra_headers = [] if self._refer_headers.get("Referred-By", None) is not None: extra_headers.append(Header.new(self._refer_headers.get("Referred-By"))) else: extra_headers.append(Header("Referred-By", str(original_from_header.uri))) if ThorNodeConfig.enabled: extra_headers.append(Header("Thor-Scope", "conference-invitation")) extra_headers.append(Header("X-Originator-From", str(original_from_header.uri))) extra_headers.append(SubjectHeader(u"Join conference request from %s" % original_identity)) route = notification.data.result[0] self.session.connect( from_header, to_header, route=route, streams=self.streams, is_focus=True, extra_headers=extra_headers ) def _NH_DNSLookupDidFail(self, notification): notification.center.remove_observer(self, sender=notification.sender) def _NH_SIPSessionGotRingIndication(self, notification): if self._refer_request is not None: self._refer_request.send_notify(180) def _NH_SIPSessionGotProvisionalResponse(self, notification): if self._refer_request is not None: self._refer_request.send_notify(notification.data.code, notification.data.reason) def _NH_SIPSessionDidStart(self, notification): notification.center.remove_observer(self, sender=notification.sender) if self._refer_request is not None: self._refer_request.end(200) conference_application = ConferenceApplication() conference_application.add_participant(self.session, self.room_uri) log.msg("Room %s - %s added %s" % (self.room_uri_str, self._refer_headers.get("From").uri, self.refer_to_uri)) self.session = None self.streams = [] def _NH_SIPSessionDidFail(self, notification): log.msg("Room %s - failed to add %s: %s" % (self.room_uri_str, self.refer_to_uri, notification.data.reason)) notification.center.remove_observer(self, sender=notification.sender) if self._refer_request is not None: self._refer_request.end(notification.data.code or 500, notification.data.reason or notification.data.code) self.session = None self.streams = [] def _NH_SIPSessionDidEnd(self, notification): # If any stream fails to start we won't get SIPSessionDidFail, we'll get here instead log.msg("Room %s - failed to add %s" % (self.room_uri_str, self.refer_to_uri)) notification.center.remove_observer(self, sender=notification.sender) if self._refer_request is not None: self._refer_request.end(200) self.session = None self.streams = [] def _NH_SIPIncomingReferralDidEnd(self, notification): notification.center.remove_observer(self, sender=notification.sender) self._refer_request = None
class IncomingReferralHandler(object): implements(IObserver) def __init__(self, refer_request, data): self._refer_request = refer_request self._refer_headers = data.headers self.room_uri = data.request_uri self.room_uri_str = '%s@%s' % (self.room_uri.user, self.room_uri.host) self.refer_to_uri = re.sub('<|>', '', data.headers.get('Refer-To').uri) self.method = data.headers.get('Refer-To').parameters.get( 'method', 'INVITE').upper() self.session = None self.streams = [] def start(self): if not self.refer_to_uri.startswith(('sip:', 'sips:')): self.refer_to_uri = 'sip:%s' % self.refer_to_uri try: self.refer_to_uri = SIPURI.parse(self.refer_to_uri) except SIPCoreError: log.info('Room %s - failed to add %s' % (self.room_uri_str, self.refer_to_uri)) self._refer_request.reject(488) return notification_center = NotificationCenter() notification_center.add_observer(self, sender=self._refer_request) if self.method == 'INVITE': self._refer_request.accept() settings = SIPSimpleSettings() account = DefaultAccount() if account.sip.outbound_proxy is not None: uri = SIPURI(host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={ 'transport': account.sip.outbound_proxy.transport }) else: uri = self.refer_to_uri lookup = DNSLookup() notification_center.add_observer(self, sender=lookup) lookup.lookup_sip_proxy(uri, settings.sip.transport_list) elif self.method == 'BYE': log.info('Room %s - %s removed %s from the room' % (self.room_uri_str, self._refer_headers.get('From').uri, self.refer_to_uri)) self._refer_request.accept() conference_application = ConferenceApplication() conference_application.remove_participant(self.refer_to_uri, self.room_uri) self._refer_request.end(200) else: self._refer_request.reject(488) def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_DNSLookupDidSucceed(self, notification): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=notification.sender) account = DefaultAccount() conference_application = ConferenceApplication() try: room = conference_application.get_room(self.room_uri) except RoomNotFoundError: log.info('Room %s - failed to add %s' % (self.room_uri_str, self.refer_to_uri)) self._refer_request.end(500) return active_media = set(room.active_media).intersection(('audio', 'chat')) if not active_media: log.info('Room %s - failed to add %s' % (self.room_uri_str, self.refer_to_uri)) self._refer_request.end(500) return for stream_type in active_media: self.streams.append(MediaStreamRegistry.get(stream_type)()) self.session = Session(account) notification_center.add_observer(self, sender=self.session) original_from_header = self._refer_headers.get('From') if original_from_header.display_name: original_identity = "%s <%s@%s>" % ( original_from_header.display_name, original_from_header.uri.user, original_from_header.uri.host) else: original_identity = "%s@%s" % (original_from_header.uri.user, original_from_header.uri.host) from_header = FromHeader(SIPURI.new(self.room_uri), u'Conference Call') to_header = ToHeader(self.refer_to_uri) extra_headers = [] if self._refer_headers.get('Referred-By', None) is not None: extra_headers.append( Header.new(self._refer_headers.get('Referred-By'))) else: extra_headers.append( Header('Referred-By', str(original_from_header.uri))) if ThorNodeConfig.enabled: extra_headers.append(Header('Thor-Scope', 'conference-invitation')) extra_headers.append( Header('X-Originator-From', str(original_from_header.uri))) extra_headers.append( SubjectHeader(u'Join conference request from %s' % original_identity)) route = notification.data.result[0] self.session.connect(from_header, to_header, route=route, streams=self.streams, is_focus=True, extra_headers=extra_headers) def _NH_DNSLookupDidFail(self, notification): notification.center.remove_observer(self, sender=notification.sender) def _NH_SIPSessionGotRingIndication(self, notification): if self._refer_request is not None: self._refer_request.send_notify(180) def _NH_SIPSessionGotProvisionalResponse(self, notification): if self._refer_request is not None: self._refer_request.send_notify(notification.data.code, notification.data.reason) def _NH_SIPSessionDidStart(self, notification): notification.center.remove_observer(self, sender=notification.sender) if self._refer_request is not None: self._refer_request.end(200) conference_application = ConferenceApplication() conference_application.add_participant(self.session, self.room_uri) log.info('Room %s - %s added %s' % (self.room_uri_str, self._refer_headers.get('From').uri, self.refer_to_uri)) self.session = None self.streams = [] def _NH_SIPSessionDidFail(self, notification): log.info( 'Room %s - failed to add %s: %s' % (self.room_uri_str, self.refer_to_uri, notification.data.reason)) notification.center.remove_observer(self, sender=notification.sender) if self._refer_request is not None: self._refer_request.end( notification.data.code or 500, notification.data.reason or notification.data.code) self.session = None self.streams = [] def _NH_SIPSessionDidEnd(self, notification): # If any stream fails to start we won't get SIPSessionDidFail, we'll get here instead log.info('Room %s - failed to add %s' % (self.room_uri_str, self.refer_to_uri)) notification.center.remove_observer(self, sender=notification.sender) if self._refer_request is not None: self._refer_request.end(200) self.session = None self.streams = [] def _NH_SIPIncomingReferralDidEnd(self, notification): notification.center.remove_observer(self, sender=notification.sender) self._refer_request = None
class OutgoingFileTransferHandler(object): implements(IObserver) def __init__(self, sender_uri, destination_uri, file_selector): self.sender_uri = sender_uri self.destination_uri = destination_uri self.file_selector = file_selector self.session = None self.stream = None self.timer = None self.success = False @run_in_green_thread def start(self): notification_center = NotificationCenter() self.greenlet = api.getcurrent() settings = SIPSimpleSettings() account = AccountManager().sylkserver_account if account.sip.outbound_proxy is not None: uri = SIPURI( host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = self.destination_uri lookup = DNSLookup() try: routes = lookup.lookup_sip_proxy( uri, settings.sip.transport_list).wait() except DNSLookupError: notification_center.post_notification( 'OutgoingFileTransferHandlerDidFail', sender=self) return self.session = Session(account) self.stream = FileTransferStream(self.file_selector, 'sendonly') notification_center.add_observer(self, sender=self.session) notification_center.add_observer(self, sender=self.stream) from_header = FromHeader(self.sender_uri, u'SIPStache File Transfer') to_header = ToHeader(self.destination_uri) transport = routes[0].transport parameters = {} if transport == 'udp' else {'transport': transport} contact_header = ContactHeader( SIPURI(user=self.sender_uri.user, host=SIPConfig.local_ip.normalized, port=getattr(Engine(), '%s_port' % transport), parameters=parameters)) extra_headers = [] if ThorNodeConfig.enabled: extra_headers.append(Header('Thor-Scope', 'sipstache-file')) extra_headers.append( Header('X-Originator-From', str(self.destination_uri))) self.session.connect(from_header, to_header, contact_header=contact_header, routes=routes, streams=[self.stream], is_focus=False, extra_headers=extra_headers) notification_center.post_notification( 'OutgoingFileTransferHandlerDidStart', sender=self) def stop(self): if self.session is not None: self.session.end() @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_FileTransferStreamDidFinish(self, notification): self.success = True if self.timer is None: self.timer = reactor.callLater(2, self.session.end) def _NH_SIPSessionDidEnd(self, notification): if self.timer is not None and self.timer.active(): self.timer.cancel() self.timer = None notification.center.remove_observer(self, sender=self.stream) notification.center.remove_observer(self, sender=self.session) self.session = None self.stream = None if self.success: notification.center.post_notification( 'OutgoingFileTransferHandlerDidFail', sender=self) else: notification.center.post_notification( 'OutgoingFileTransferHandlerDidEnd', sender=self) _NH_SIPSessionDidFail = _NH_SIPSessionDidEnd
class X2SMucHandler(object): implements(IObserver) sip_identity = WriteOnceAttribute() xmpp_identity = WriteOnceAttribute() def __init__(self, sip_identity, xmpp_identity, nickname): self.sip_identity = sip_identity self.xmpp_identity = xmpp_identity self.nickname = nickname self._xmpp_muc_session = None self._sip_session = None self._msrp_stream = None self._first_stanza = None self._pending_nicknames_map = { } # map message ID of MSRP NICKNAME chunk to corresponding stanza self._pending_messages_map = { } # map message ID of MSRP SEND chunk to corresponding stanza self._participants = set() # set of (URI, nickname) tuples self.ended = False def start(self): notification_center = NotificationCenter() self._xmpp_muc_session = XMPPIncomingMucSession( local_identity=self.sip_identity, remote_identity=self.xmpp_identity) notification_center.add_observer(self, sender=self._xmpp_muc_session) self._xmpp_muc_session.start() notification_center.post_notification('X2SMucHandlerDidStart', sender=self) self._start_sip_session() def end(self): if self.ended: return notification_center = NotificationCenter() if self._xmpp_muc_session is not None: notification_center.remove_observer(self, sender=self._xmpp_muc_session) # Send indication that the user has been kicked from the room sender = Identity( FrozenURI(self.sip_identity.uri.user, self.sip_identity.uri.host, self.nickname)) stanza = MUCAvailabilityPresence(sender, self.xmpp_identity, available=False) stanza.jid = self.xmpp_identity stanza.muc_statuses.append('307') xmpp_manager = XMPPManager() xmpp_manager.send_muc_stanza(stanza) self._xmpp_muc_session.end() self._xmpp_muc_session = None if self._sip_session is not None: notification_center.remove_observer(self, sender=self._sip_session) self._sip_session.end() self._sip_session = None self.ended = True notification_center.post_notification('X2SMucHandlerDidEnd', sender=self) @run_in_green_thread def _start_sip_session(self): # self.xmpp_identity is our local identity from_uri = self.xmpp_identity.uri.as_sip_uri() del from_uri.parameters['gr'] # no GRUU in From header contact_uri = self.xmpp_identity.uri.as_sip_uri() contact_uri.parameters['gr'] = encode_resource( contact_uri.parameters['gr'].decode('utf-8')) to_uri = self.sip_identity.uri.as_sip_uri() lookup = DNSLookup() settings = SIPSimpleSettings() account = DefaultAccount() if account.sip.outbound_proxy is not None: uri = SIPURI( host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = to_uri try: routes = lookup.lookup_sip_proxy( uri, settings.sip.transport_list).wait() except DNSLookupError: log.warning('DNS lookup error while looking for %s proxy' % uri) self.end() return self._msrp_stream = MediaStreamRegistry.get('chat')() route = routes.pop(0) from_header = FromHeader(from_uri) to_header = ToHeader(to_uri) contact_header = ContactHeader(contact_uri) self._sip_session = Session(account) notification_center = NotificationCenter() notification_center.add_observer(self, sender=self._sip_session) notification_center.add_observer(self, sender=self._msrp_stream) self._sip_session.connect(from_header, to_header, contact_header=contact_header, route=route, streams=[self._msrp_stream]) def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidStart(self, notification): log.info("SIP multiparty session %s started" % self._sip_session.call_id) if not self._sip_session.remote_focus or not self._msrp_stream.nickname_allowed: self.end() return message_id = self._msrp_stream.set_local_nickname(self.nickname) self._pending_nicknames_map[message_id] = (self.nickname, self._first_stanza) self._first_stanza = None def _NH_SIPSessionDidEnd(self, notification): log.info("SIP multiparty session %s ended" % self._sip_session.call_id) notification.center.remove_observer(self, sender=self._sip_session) notification.center.remove_observer(self, sender=self._msrp_stream) self._sip_session = None self._msrp_stream = None self.end() def _NH_SIPSessionDidFail(self, notification): log.info("SIP multiparty session %s failed" % self._sip_session.call_id) notification.center.remove_observer(self, sender=self._sip_session) notification.center.remove_observer(self, sender=self._msrp_stream) self._sip_session = None self._msrp_stream = None self.end() def _NH_SIPSessionNewProposal(self, notification): if notification.data.originator == 'remote': self._sip_session.reject_proposal() def _NH_SIPSessionTransferNewIncoming(self, notification): self._sip_session.reject_transfer(403) def _NH_SIPSessionGotConferenceInfo(self, notification): # Translate to XMPP payload xmpp_manager = XMPPManager() own_uri = FrozenURI(self.xmpp_identity.uri.user, self.xmpp_identity.uri.host) conference_info = notification.data.conference_info new_participants = set() for user in conference_info.users: user_uri = FrozenURI.parse(user.entity if user.entity.startswith(( 'sip:', 'sips:')) else 'sip:' + user.entity) nickname = user.display_text.value if user.display_text else user.entity new_participants.add((user_uri, nickname)) # Remove participants that are no longer in the room for uri, nickname in self._participants - new_participants: sender = Identity( FrozenURI(self.sip_identity.uri.user, self.sip_identity.uri.host, nickname)) stanza = MUCAvailabilityPresence(sender, self.xmpp_identity, available=False) xmpp_manager.send_muc_stanza(stanza) # Send presence for current participants for uri, nickname in new_participants: if uri == own_uri: continue sender = Identity( FrozenURI(self.sip_identity.uri.user, self.sip_identity.uri.host, nickname)) stanza = MUCAvailabilityPresence(sender, self.xmpp_identity, available=True) stanza.jid = Identity(uri) xmpp_manager.send_muc_stanza(stanza) self._participants = new_participants # Send own status last sender = Identity( FrozenURI(self.sip_identity.uri.user, self.sip_identity.uri.host, self.nickname)) stanza = MUCAvailabilityPresence(sender, self.xmpp_identity, available=True) stanza.jid = self.xmpp_identity stanza.muc_statuses.append('110') xmpp_manager.send_muc_stanza(stanza) def _NH_ChatStreamGotMessage(self, notification): # Notification is sent by the MSRP stream if not self._xmpp_muc_session: return message = notification.data.message content_type = message.content_type.lower() if content_type not in ('text/plain', 'text/html'): return if content_type == 'text/plain': html_body = None body = message.content else: html_body = message.content body = None resource = message.sender.display_name or str(message.sender.uri) sender = Identity( FrozenURI(self.sip_identity.uri.user, self.sip_identity.uri.host, resource)) self._xmpp_muc_session.send_message(sender, body, html_body, message_id='MUC.' + uuid.uuid4().hex) self._msrp_stream.msrp_session.send_report(notification.data.chunk, 200, 'OK') def _NH_ChatStreamDidSetNickname(self, notification): # Notification is sent by the MSRP stream nickname, stanza = self._pending_nicknames_map.pop( notification.data.message_id) self.nickname = nickname def _NH_ChatStreamDidNotSetNickname(self, notification): # Notification is sent by the MSRP stream nickname, stanza = self._pending_nicknames_map.pop( notification.data.message_id) error_stanza = MUCErrorPresence.from_stanza(stanza, 'cancel', [('conflict', STANZAS_NS)]) xmpp_manager = XMPPManager() xmpp_manager.send_muc_stanza(error_stanza) def _NH_ChatStreamDidDeliverMessage(self, notification): # Echo back the message to the sender stanza = self._pending_messages_map.pop(notification.data.message_id) stanza.sender, stanza.recipient = stanza.recipient, stanza.sender stanza.sender.uri = FrozenURI(stanza.sender.uri.user, stanza.sender.uri.host, self.nickname) xmpp_manager = XMPPManager() xmpp_manager.send_muc_stanza(stanza) def _NH_ChatStreamDidNotDeliverMessage(self, notification): self._pending_messages_map.pop(notification.data.message_id) def _NH_XMPPIncomingMucSessionDidEnd(self, notification): notification.center.remove_observer(self, sender=self._xmpp_muc_session) self._xmpp_muc_session = None self.end() def _NH_XMPPIncomingMucSessionGotMessage(self, notification): if not self._sip_session: return message = notification.data.message sender_uri = message.sender.uri.as_sip_uri() del sender_uri.parameters['gr'] # no GRUU in CPIM From header sender = ChatIdentity(sender_uri, display_name=self.nickname) message_id = self._msrp_stream.send_message(message.body, 'text/plain', sender=sender) self._pending_messages_map[message_id] = message # Message will be echoed back to the sender on ChatStreamDidDeliverMessage def _NH_XMPPIncomingMucSessionChangedNickname(self, notification): if not self._sip_session: return nickname = notification.data.nickname try: message_id = self._msrp_stream.set_local_nickname(nickname) except ChatStreamError: return self._pending_nicknames_map[message_id] = (nickname, notification.data.stanza) def _NH_XMPPIncomingMucSessionSubject(self, notification): if not self._sip_session: return message = notification.data.message sender_uri = message.sender.uri.as_sip_uri() del sender_uri.parameters['gr'] # no GRUU in CPIM From header sender = ChatIdentity(sender_uri, display_name=self.nickname) message_id = self._msrp_stream.send_message( 'Conference title set to: %s' % message.body, 'text/plain', sender=sender) self._pending_messages_map[message_id] = message
class OutgoingFileTransferHandler(object): implements(IObserver) def __init__(self, sender_uri, destination_uri, file_selector): self.sender_uri = sender_uri self.destination_uri = destination_uri self.file_selector = file_selector self.session = None self.stream = None self.timer = None self.success = False @run_in_green_thread def start(self): notification_center = NotificationCenter() self.greenlet = api.getcurrent() settings = SIPSimpleSettings() account = AccountManager().sylkserver_account if account.sip.outbound_proxy is not None: uri = SIPURI(host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = self.destination_uri lookup = DNSLookup() try: routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait() except DNSLookupError: notification_center.post_notification('OutgoingFileTransferHandlerDidFail', sender=self) return self.session = Session(account) self.stream = FileTransferStream(self.file_selector, 'sendonly') notification_center.add_observer(self, sender=self.session) notification_center.add_observer(self, sender=self.stream) from_header = FromHeader(self.sender_uri, u'SIPStache File Transfer') to_header = ToHeader(self.destination_uri) transport = routes[0].transport parameters = {} if transport=='udp' else {'transport': transport} contact_header = ContactHeader(SIPURI(user=self.sender_uri.user, host=SIPConfig.local_ip.normalized, port=getattr(Engine(), '%s_port' % transport), parameters=parameters)) extra_headers = [] if ThorNodeConfig.enabled: extra_headers.append(Header('Thor-Scope', 'sipstache-file')) extra_headers.append(Header('X-Originator-From', str(self.destination_uri))) self.session.connect(from_header, to_header, contact_header=contact_header, routes=routes, streams=[self.stream], is_focus=False, extra_headers=extra_headers) notification_center.post_notification('OutgoingFileTransferHandlerDidStart', sender=self) def stop(self): if self.session is not None: self.session.end() @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_FileTransferStreamDidFinish(self, notification): self.success = True if self.timer is None: self.timer = reactor.callLater(2, self.session.end) def _NH_SIPSessionDidEnd(self, notification): if self.timer is not None and self.timer.active(): self.timer.cancel() self.timer = None notification.center.remove_observer(self, sender=self.stream) notification.center.remove_observer(self, sender=self.session) self.session = None self.stream = None if self.success: notification.center.post_notification('OutgoingFileTransferHandlerDidFail', sender=self) else: notification.center.post_notification('OutgoingFileTransferHandlerDidEnd', sender=self) _NH_SIPSessionDidFail = _NH_SIPSessionDidEnd
class ChatSessionHandler(object): implements(IObserver) sip_identity = WriteOnceAttribute() xmpp_identity = WriteOnceAttribute() def __init__(self): self.started = False self.ended = False self.sip_session = None self.msrp_stream = None self._sip_session_timer = None self.use_receipts = False self.xmpp_session = None self._xmpp_message_queue = deque() self._pending_msrp_chunks = {} self._pending_xmpp_stanzas = {} def _set_started(self, value): old_value = self.__dict__.get('started', False) self.__dict__['started'] = value if not old_value and value: NotificationCenter().post_notification('ChatSessionDidStart', sender=self) self._send_queued_messages() def _get_started(self): return self.__dict__['started'] started = property(_get_started, _set_started) del _get_started, _set_started def _set_xmpp_session(self, session): self.__dict__['xmpp_session'] = session if session is not None: # Reet SIP session timer in case it's active if self._sip_session_timer is not None and self._sip_session_timer.active(): self._sip_session_timer.reset(SESSION_TIMEOUT) NotificationCenter().add_observer(self, sender=session) session.start() # Reet SIP session timer in case it's active if self._sip_session_timer is not None and self._sip_session_timer.active(): self._sip_session_timer.reset(SESSION_TIMEOUT) def _get_xmpp_session(self): return self.__dict__['xmpp_session'] xmpp_session = property(_get_xmpp_session, _set_xmpp_session) del _get_xmpp_session, _set_xmpp_session @classmethod def new_from_sip_session(cls, sip_identity, session): instance = cls() instance.sip_identity = sip_identity instance._start_incoming_sip_session(session) return instance @classmethod def new_from_xmpp_stanza(cls, xmpp_identity, recipient): instance = cls() instance.xmpp_identity = xmpp_identity instance._start_outgoing_sip_session(recipient) return instance @run_in_green_thread def _start_incoming_sip_session(self, session): self.sip_session = session self.msrp_stream = next(stream for stream in session.proposed_streams if stream.type=='chat') notification_center = NotificationCenter() notification_center.add_observer(self, sender=self.sip_session) notification_center.add_observer(self, sender=self.msrp_stream) self.sip_session.accept([self.msrp_stream]) @run_in_green_thread def _start_outgoing_sip_session(self, target_uri): notification_center = NotificationCenter() # self.xmpp_identity is our local identity from_uri = self.xmpp_identity.uri.as_sip_uri() del from_uri.parameters['gr'] # no GRUU in From header contact_uri = self.xmpp_identity.uri.as_sip_uri() contact_uri.parameters['gr'] = encode_resource(contact_uri.parameters['gr'].decode('utf-8')) to_uri = target_uri.as_sip_uri() lookup = DNSLookup() settings = SIPSimpleSettings() account = DefaultAccount() if account.sip.outbound_proxy is not None: uri = SIPURI(host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = to_uri try: routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait() except DNSLookupError: log.warning('DNS lookup error while looking for %s proxy' % uri) notification_center.post_notification('ChatSessionDidFail', sender=self, data=NotificationData(reason='DNS lookup error')) return self.msrp_stream = MediaStreamRegistry().get('chat')() route = routes.pop(0) from_header = FromHeader(from_uri) to_header = ToHeader(to_uri) contact_header = ContactHeader(contact_uri) self.sip_session = Session(account) notification_center.add_observer(self, sender=self.sip_session) notification_center.add_observer(self, sender=self.msrp_stream) self.sip_session.connect(from_header, to_header, contact_header=contact_header, route=route, streams=[self.msrp_stream]) def end(self): if self.ended: return if self._sip_session_timer is not None and self._sip_session_timer.active(): self._sip_session_timer.cancel() self._sip_session_timer = None notification_center = NotificationCenter() if self.sip_session is not None: notification_center.remove_observer(self, sender=self.sip_session) notification_center.remove_observer(self, sender=self.msrp_stream) self.sip_session.end() self.sip_session = None self.msrp_stream = None if self.xmpp_session is not None: notification_center.remove_observer(self, sender=self.xmpp_session) self.xmpp_session.end() self.xmpp_session = None self.ended = True if self.started: notification_center.post_notification('ChatSessionDidEnd', sender=self) else: notification_center.post_notification('ChatSessionDidFail', sender=self, data=NotificationData(reason='Ended before actually started')) def enqueue_xmpp_message(self, message): self._xmpp_message_queue.append(message) if self.started: self._send_queued_messages() def _send_queued_messages(self): if self._xmpp_message_queue: while self._xmpp_message_queue: message = self._xmpp_message_queue.popleft() if message.body is None: continue if not message.use_receipt: success_report = 'no' failure_report = 'no' else: success_report = 'yes' failure_report = 'yes' sender_uri = message.sender.uri.as_sip_uri() sender_uri.parameters['gr'] = encode_resource(sender_uri.parameters['gr'].decode('utf-8')) sender = CPIMIdentity(sender_uri) self.msrp_stream.send_message(message.body, 'text/plain', sender=sender, message_id=message.id, notify_progress=True, success_report=success_report, failure_report=failure_report) self.msrp_stream.send_composing_indication('idle', 30, sender=sender) def _inactivity_timeout(self): log.msg("Ending SIP session %s due to inactivity" % self.sip_session.call_id) self.sip_session.end() def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidStart(self, notification): log.msg("SIP session %s started" % self.sip_session.call_id) self._sip_session_timer = reactor.callLater(SESSION_TIMEOUT, self._inactivity_timeout) if self.sip_session.direction == 'outgoing': # Time to set sip_identity and create the XMPPChatSession contact_uri = self.sip_session._invitation.remote_contact_header.uri if contact_uri.parameters.get('gr') is not None: sip_leg_uri = FrozenURI(contact_uri.user, contact_uri.host, contact_uri.parameters.get('gr')) else: tmp = self.sip_session.remote_identity.uri sip_leg_uri = FrozenURI(tmp.user, tmp.host, generate_sylk_resource()) self.sip_identity = Identity(sip_leg_uri, self.sip_session.remote_identity.display_name) session = XMPPChatSession(local_identity=self.sip_identity, remote_identity=self.xmpp_identity) self.xmpp_session = session # Session is now established on both ends self.started = True # Try to wakeup XMPP clients self.xmpp_session.send_composing_indication('active') self.xmpp_session.send_message(' ', 'text/plain') else: if self.xmpp_session is not None: # Session is now established on both ends self.started = True # Try to wakeup XMPP clients self.xmpp_session.send_composing_indication('active') self.xmpp_session.send_message(' ', 'text/plain') else: # Try to wakeup XMPP clients sender = self.sip_identity tmp = self.sip_session.local_identity.uri recipient_uri = FrozenURI(tmp.user, tmp.host) recipient = Identity(recipient_uri) xmpp_manager = XMPPManager() xmpp_manager.send_stanza(ChatMessage(sender, recipient, ' ', 'text/plain')) # Send queued messages self._send_queued_messages() def _NH_SIPSessionDidEnd(self, notification): log.msg("SIP session %s ended" % self.sip_session.call_id) notification.center.remove_observer(self, sender=self.sip_session) notification.center.remove_observer(self, sender=self.msrp_stream) self.sip_session = None self.msrp_stream = None self.end() def _NH_SIPSessionDidFail(self, notification): log.msg("SIP session %s failed" % self.sip_session.call_id) notification.center.remove_observer(self, sender=self.sip_session) notification.center.remove_observer(self, sender=self.msrp_stream) self.sip_session = None self.msrp_stream = None self.end() def _NH_SIPSessionNewProposal(self, notification): if notification.data.originator == 'remote': self.sip_session.reject_proposal() def _NH_SIPSessionTransferNewIncoming(self, notification): self.sip_session.reject_transfer(403) def _NH_ChatStreamGotMessage(self, notification): # Notification is sent by the MSRP stream message = notification.data.message content_type = message.content_type.lower() if content_type not in ('text/plain', 'text/html'): return if content_type == 'text/plain': html_body = None body = message.body else: html_body = message.body body = None if self._sip_session_timer is not None and self._sip_session_timer.active(): self._sip_session_timer.reset(SESSION_TIMEOUT) chunk = notification.data.chunk if self.started: self.xmpp_session.send_message(body, html_body, message_id=chunk.message_id) if self.use_receipts: self._pending_msrp_chunks[chunk.message_id] = chunk else: self.msrp_stream.msrp_session.send_report(chunk, 200, 'OK') else: sender = self.sip_identity recipient_uri = FrozenURI.parse(message.recipients[0].uri) recipient = Identity(recipient_uri, message.recipients[0].display_name) xmpp_manager = XMPPManager() xmpp_manager.send_stanza(ChatMessage(sender, recipient, body, html_body)) self.msrp_stream.msrp_session.send_report(chunk, 200, 'OK') def _NH_ChatStreamGotComposingIndication(self, notification): # Notification is sent by the MSRP stream if self._sip_session_timer is not None and self._sip_session_timer.active(): self._sip_session_timer.reset(SESSION_TIMEOUT) if not self.started: return state = None if notification.data.state == 'active': state = 'composing' elif notification.data.state == 'idle': state = 'paused' if state is not None: self.xmpp_session.send_composing_indication(state) def _NH_ChatStreamDidDeliverMessage(self, notification): if self.started: message = self._pending_xmpp_stanzas.pop(notification.data.message_id, None) if message is not None: self.xmpp_session.send_receipt_acknowledgement(message.id) def _NH_ChatStreamDidNotDeliverMessage(self, notification): if self.started: message = self._pending_xmpp_stanzas.pop(notification.data.message_id, None) if message is not None: self.xmpp_session.send_error(message, 'TODO', []) # TODO def _NH_XMPPChatSessionDidStart(self, notification): if self.sip_session is not None: # Session is now established on both ends self.started = True def _NH_XMPPChatSessionDidEnd(self, notification): notification.center.remove_observer(self, sender=self.xmpp_session) self.xmpp_session = None self.end() def _NH_XMPPChatSessionGotMessage(self, notification): if self.sip_session is None or self.sip_session.state != 'connected': self._xmpp_message_queue.append(notification.data.message) return if self._sip_session_timer is not None and self._sip_session_timer.active(): self._sip_session_timer.reset(SESSION_TIMEOUT) message = notification.data.message sender_uri = message.sender.uri.as_sip_uri() del sender_uri.parameters['gr'] # no GRUU in CPIM From header sender = CPIMIdentity(sender_uri) self.use_receipts = message.use_receipt if not message.use_receipt: success_report = 'no' failure_report = 'no' else: success_report = 'yes' failure_report = 'yes' self._pending_xmpp_stanzas[message.id] = message # Prefer plaintext self.msrp_stream.send_message(message.body, 'text/plain', sender=sender, message_id=message.id, notify_progress=True, success_report=success_report, failure_report=failure_report) self.msrp_stream.send_composing_indication('idle', 30, sender=sender) def _NH_XMPPChatSessionGotComposingIndication(self, notification): if self.sip_session is None or self.sip_session.state != 'connected': return if self._sip_session_timer is not None and self._sip_session_timer.active(): self._sip_session_timer.reset(SESSION_TIMEOUT) message = notification.data.message state = None if message.state == 'composing': state = 'active' elif message.state == 'paused': state = 'idle' if state is not None: sender_uri = message.sender.uri.as_sip_uri() del sender_uri.parameters['gr'] # no GRUU in CPIM From header sender = CPIMIdentity(sender_uri) self.msrp_stream.send_composing_indication(state, 30, sender=sender) if message.use_receipt: self.xmpp_session.send_receipt_acknowledgement(message.id) def _NH_XMPPChatSessionDidDeliverMessage(self, notification): chunk = self._pending_msrp_chunks.pop(notification.data.message_id, None) if chunk is not None: self.msrp_stream.msrp_session.send_report(chunk, 200, 'OK') def _NH_XMPPChatSessionDidNotDeliverMessage(self, notification): chunk = self._pending_msrp_chunks.pop(notification.data.message_id, None) if chunk is not None: self.msrp_stream.msrp_session.send_report(chunk, notification.data.code, notification.data.reason)