diff --git a/sylk/applications/conference/__init__.py b/sylk/applications/conference/__init__.py index db2272e..88a198e 100644 --- a/sylk/applications/conference/__init__.py +++ b/sylk/applications/conference/__init__.py @@ -1,436 +1,433 @@ # Copyright (C) 2010-2011 AG Projects. See LICENSE for details # import mimetypes import os import re import shutil from application.notification import IObserver, NotificationCenter from application.python import Null from gnutls.interfaces.twisted import X509Credentials from sipsimple.account.bonjour import BonjourPresenceState from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import SIPURI, SIPCoreError from sipsimple.core import Header, FromHeader, ToHeader, SubjectHeader from sipsimple.lookup import DNSLookup -from sipsimple.streams import AudioStream +from sipsimple.streams import MediaStreamRegistry from sipsimple.threading.green import run_in_green_thread from twisted.internet import reactor from zope.interface import implements from sylk.accounts import DefaultAccount from sylk.applications import SylkApplication from sylk.applications.conference.configuration import get_room_config, ConferenceConfig from sylk.applications.conference.logger import log from sylk.applications.conference.room import Room from sylk.applications.conference.web import ScreenSharingWebServer from sylk.bonjour import BonjourService from sylk.configuration import ServerConfig, ThorNodeConfig from sylk.session import Session, IllegalStateError -from sylk.streams import ChatStream from sylk.tls import Certificate, PrivateKey class ACLValidationError(Exception): pass class RoomNotFoundError(Exception): pass 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.screen_sharing_web_server = None def start(self): # cleanup old files for path in (ConferenceConfig.file_transfer_dir, ConferenceConfig.screen_sharing_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='conference') self.bonjour_room_service.start() self.bonjour_room_service.presence_state = BonjourPresenceState('available', u'No participants') log.msg("Bonjour publication started for service 'sipuri'") self.screen_sharing_web_server = ScreenSharingWebServer(ConferenceConfig.screen_sharing_dir) if ConferenceConfig.screen_sharing_use_https and os.path.isfile(ConferenceConfig.screen_sharing_certificate): cert = Certificate(ConferenceConfig.screen_sharing_certificate.normalized) key = PrivateKey(ConferenceConfig.screen_sharing_certificate.normalized) credentials = X509Credentials(cert, key) transport = 'https' else: credentials = None transport = 'http' self.screen_sharing_web_server.start(ConferenceConfig.screen_sharing_ip, ConferenceConfig.screen_sharing_port, credentials) listen_address = self.screen_sharing_web_server.listener.getHost() log.msg("ScreenSharing listener started on %s://%s:%d" % (transport, listen_address.host, listen_address.port)) def stop(self): self.bonjour_focus_service.stop() self.bonjour_room_service.stop() self.screen_sharing_web_server.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 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 # Check if requested files belong to this room for stream in (stream for stream in transfer_streams if stream.direction == 'sendonly'): try: room = self.get_room(session.request_uri) except RoomNotFoundError: log.msg(u'Session rejected: room not found') session.reject(404) return try: file = next(file for file in room.files if file.hash == stream.file_selector.hash) except StopIteration: log.msg(u'Session rejected: requested file not found') session.reject(404) return filename = os.path.basename(file.name) for dirpath, dirnames, filenames in os.walk(os.path.join(ConferenceConfig.file_transfer_dir, room.uri)): if filename in filenames: path = os.path.join(dirpath, filename) stream.file_selector.fd = open(path, 'r') if stream.file_selector.size is None: stream.file_selector.size = os.fstat(stream.file_selector.fd.fileno()).st_size if stream.file_selector.type is None: mime_type, encoding = mimetypes.guess_type(filename) if encoding is not None: type = 'application/x-%s' % encoding elif mime_type is not None: type = mime_type else: type = 'application/octet-stream' stream.file_selector.type = type break else: # File got removed from the filesystem log.msg(u'Session rejected: requested file removed from the filesystem') session.reject(404) return NotificationCenter().add_observer(self, sender=session) if audio_streams: session.send_ring_indication() streams = [streams[0] for streams in (audio_streams, chat_streams, transfer_streams) if streams] reactor.callLater(4 if audio_streams 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.msg(u'Subscription rejected: only conference event is supported') 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.msg(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.msg(u'Subscription rejected: room not yet created') subscribe_request.reject(480) return if not room.started: log.msg(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.msg(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.msg(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.msg(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.msg(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.msg('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.msg(u'Session from %s failed: %s' % (session.remote_identity.uri, notification.data.reason)) 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 - else: - active_media = room.active_media + 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 - if 'audio' in active_media: - self.streams.append(AudioStream()) - if 'chat' in active_media: - self.streams.append(ChatStream()) + 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 diff --git a/sylk/applications/conference/room.py b/sylk/applications/conference/room.py index a7c329a..96a25a7 100644 --- a/sylk/applications/conference/room.py +++ b/sylk/applications/conference/room.py @@ -1,1232 +1,1232 @@ # Copyright (C) 2010-2011 AG Projects. See LICENSE for details. # import hashlib import os import random import re import shutil import string import weakref from collections import defaultdict, deque from glob import glob from itertools import chain, count, cycle from application.notification import IObserver, NotificationCenter, NotificationData from application.python import Null from application.system import makedirs from eventlib import api, coros, proc from sipsimple.account.bonjour import BonjourPresenceState from sipsimple.application import SIPApplication from sipsimple.audio import AudioConference, WavePlayer, WavePlayerError from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import SIPCoreError, SIPCoreInvalidStateError, SIPURI from sipsimple.core import Header, FromHeader, ToHeader, SubjectHeader from sipsimple.lookup import DNSLookup, DNSLookupError from sipsimple.payloads import conference +from sipsimple.streams import MediaStreamRegistry from sipsimple.streams.applications.chat import CPIMIdentity, CPIMHeader, Namespace from sipsimple.streams.msrp import FileSelector from sipsimple.threading import run_in_thread, run_in_twisted_thread from sipsimple.threading.green import run_in_green_thread from sipsimple.util import ISOTimestamp from twisted.internet import reactor from zope.interface import implements from sylk.accounts import DefaultAccount from sylk.applications.conference.configuration import get_room_config, ConferenceConfig from sylk.applications.conference.logger import log from sylk.bonjour import BonjourService from sylk.configuration import ServerConfig, ThorNodeConfig from sylk.configuration.datatypes import URL from sylk.resources import Resources from sylk.session import Session, IllegalStateError -from sylk.streams import FileTransferStream def format_identity(identity): uri = identity.uri if identity.display_name: return u'%s <%s@%s>' % (identity.display_name, uri.user, uri.host) else: return u'%s@%s' % (uri.user, uri.host) class ScreenImage(object): def __init__(self, room, sender): self.room = weakref.ref(room) self.room_uri = room.uri self.sender = sender self.filename = os.path.join(ConferenceConfig.screen_sharing_dir, room.uri, '%s@%s_%s.jpg' % (sender.uri.user, sender.uri.host, ''.join(random.sample(string.letters+string.digits, 10)))) from sylk.applications.conference import ConferenceApplication port = ConferenceApplication().screen_sharing_web_server.port scheme = 'https' if ConferenceConfig.screen_sharing_use_https else 'http' host = ConferenceConfig.screen_sharing_hostname or ConferenceConfig.screen_sharing_ip.normalized self.url = URL('%s://%s:%s/' % (scheme, host, port)) self.url.query_items['image'] = os.path.join(room.uri, os.path.basename(self.filename)) self.state = None self.timer = None @property def active(self): return self.state == 'active' @property def idle(self): return self.state == 'idle' @run_in_thread('file-io') def save(self, image): makedirs(os.path.dirname(self.filename)) tmp_filename = self.filename + '.tmp' try: with open(tmp_filename, 'wb') as file: file.write(image) except EnvironmentError, e: log.msg('Room %s - cannot write screen sharing image: %s: %s' % (self.room_uri, self.filename, e)) else: try: os.rename(tmp_filename, self.filename) except EnvironmentError: pass self.advertise() @run_in_twisted_thread def advertise(self): if self.state == 'active': self.timer.reset(10) else: if self.timer is not None and self.timer.active(): self.timer.cancel() self.state = 'active' self.timer = reactor.callLater(10, self.stop_advertising) room = self.room() or Null room.dispatch_conference_info() txt = 'Room %s - %s is sharing the screen at %s' % (self.room_uri, format_identity(self.sender), self.url) room.dispatch_server_message(txt) log.msg(txt) @run_in_twisted_thread def stop_advertising(self): if self.state != 'idle': if self.timer is not None and self.timer.active(): self.timer.cancel() self.state = 'idle' self.timer = None room = self.room() or Null room.dispatch_conference_info() txt = '%s stopped sharing the screen' % format_identity(self.sender) room.dispatch_server_message(txt) log.msg(txt) class Room(object): """ Object representing a conference room, it will handle the message dispatching among all the participants. """ implements(IObserver) def __init__(self, uri): self.config = get_room_config(uri) self.uri = uri self.identity = CPIMIdentity(SIPURI.parse('sip:%s' % self.uri), display_name='Conference Room') self.files = [] self.screen_images = {} self.sessions = [] self.subscriptions = [] self.transfer_handlers = weakref.WeakSet() self.state = 'stopped' self.incoming_message_queue = coros.queue() self.message_dispatcher = None self.audio_conference = None self.moh_player = None self.conference_info_payload = None self.conference_info_version = count(1) self.bonjour_services = Null self.session_nickname_map = {} self.last_nicknames_map = {} self.participants_counter = defaultdict(lambda: 0) self.history = deque(maxlen=ConferenceConfig.history_size) @property def empty(self): return len(self.sessions) == 0 @property def started(self): return self.state == 'started' @property def stopping(self): return self.state in ('stopping', 'stopped') @property def active_media(self): return set((stream.type for stream in chain(*(session.streams for session in self.sessions if session.streams)))) @property def conference_info(self): if self.conference_info_payload is None: settings = SIPSimpleSettings() conference_description = conference.ConferenceDescription(display_text='Ad-hoc conference', free_text='Hosted by %s' % settings.user_agent) conference_description.conf_uris = conference.ConfUris() conference_description.conf_uris.add(conference.ConfUrisEntry('sip:%s' % self.uri, purpose='participation')) if self.config.advertise_xmpp_support: conference_description.conf_uris.add(conference.ConfUrisEntry('xmpp:%s' % self.uri, purpose='participation')) # TODO: add grouptextchat service uri for number in self.config.pstn_access_numbers: conference_description.conf_uris.add(conference.ConfUrisEntry('tel:%s' % number, purpose='participation')) host_info = conference.HostInfo(web_page=conference.WebPage('http://sylkserver.com')) self.conference_info_payload = conference.Conference(self.identity.uri, conference_description=conference_description, host_info=host_info, users=conference.Users()) self.conference_info_payload.version = next(self.conference_info_version) user_count = len(self.participants_counter.keys()) self.conference_info_payload.conference_state = conference.ConferenceState(user_count=user_count, active=True) users = conference.Users() for session in (session for session in self.sessions if not (len(session.streams) == 1 and session.streams[0].type == 'file-transfer')): try: user = next(user for user in users if user.entity == str(session.remote_identity.uri)) except StopIteration: display_text = self.last_nicknames_map.get(str(session.remote_identity.uri), session.remote_identity.display_name) user = conference.User(str(session.remote_identity.uri), display_text=display_text) user_uri = '%s@%s' % (session.remote_identity.uri.user, session.remote_identity.uri.host) screen_image = self.screen_images.get(user_uri, None) if screen_image is not None and screen_image.active: user.screen_image_url = screen_image.url users.add(user) joining_info = conference.JoiningInfo(when=session.start_time) holdable_streams = [stream for stream in session.streams if stream.hold_supported] session_on_hold = holdable_streams and all(stream.on_hold_by_remote for stream in holdable_streams) hold_status = conference.EndpointStatus('on-hold' if session_on_hold else 'connected') display_text = self.session_nickname_map.get(session, session.remote_identity.display_name) endpoint = conference.Endpoint(str(session._invitation.remote_contact_header.uri), display_text=display_text, joining_info=joining_info, status=hold_status) for stream in session.streams: if stream.type == 'file-transfer': continue endpoint.add(conference.Media(id(stream), media_type=self.format_conference_stream_type(stream))) user.add(endpoint) self.conference_info_payload.users = users if self.files: files = conference.FileResources(conference.FileResource(os.path.basename(file.name), file.hash, file.size, file.sender, file.status) for file in self.files) self.conference_info_payload.conference_description.resources = conference.Resources(files=files) return self.conference_info_payload.toxml() def start(self): if self.started: return if ServerConfig.enable_bonjour and self.identity.uri.user != 'conference': room_user = self.identity.uri.user self.bonjour_services = BonjourService(service='sipuri', name='Conference Room %s' % room_user, uri_user=room_user) self.bonjour_services.start() self.message_dispatcher = proc.spawn(self._message_dispatcher) self.audio_conference = AudioConference() self.audio_conference.hold() self.moh_player = MoHPlayer(self.audio_conference) self.moh_player.start() self.state = 'started' def stop(self): if not self.started: return self.state = 'stopping' self.bonjour_services.stop() self.bonjour_services = None self.incoming_message_queue.send_exception(api.GreenletExit) self.incoming_message_queue = None self.message_dispatcher.kill(proc.ProcExit) self.message_dispatcher = None self.moh_player.stop() self.moh_player = None self.audio_conference = None [handler.stop() for handler in self.transfer_handlers] notification_center = NotificationCenter() for subscription in self.subscriptions: notification_center.remove_observer(self, sender=subscription) subscription.end() self.subscriptions = [] self.cleanup_files() self.conference_info_payload = None self.state = 'stopped' @run_in_thread('file-io') def cleanup_files(self): path = os.path.join(ConferenceConfig.file_transfer_dir, self.uri) try: shutil.rmtree(path) except EnvironmentError: pass path = os.path.join(ConferenceConfig.screen_sharing_dir, self.uri) try: shutil.rmtree(path) except EnvironmentError: pass def _message_dispatcher(self): """Read from self.incoming_message_queue and dispatch the messages to other participants""" while True: session, message_type, data = self.incoming_message_queue.wait() if message_type == 'message': message = data.message if message.sender.uri != session.remote_identity.uri: continue if message.body.startswith('?OTR:'): continue if message.timestamp is None: message.timestamp = ISOTimestamp.utcnow() message.sender.display_name = self.last_nicknames_map.get(str(session.remote_identity.uri), message.sender.display_name) recipient = message.recipients[0] private = len(message.recipients) == 1 and '%s@%s' % (recipient.uri.user, recipient.uri.host) != self.uri if private: self.dispatch_private_message(session, message) else: self.history.append(message) self.dispatch_message(session, message) elif message_type == 'composing_indication': if data.sender.uri != session.remote_identity.uri: continue recipient = data.recipients[0] private = len(data.recipients) == 1 and '%s@%s' % (recipient.uri.user, recipient.uri.host) != self.uri if private: self.dispatch_private_iscomposing(session, data) else: self.dispatch_iscomposing(session, data) def dispatch_message(self, session, message): for s in (s for s in self.sessions if s is not session): try: chat_stream = next(stream for stream in s.streams if stream.type == 'chat') except StopIteration: continue chat_stream.send_message(message.body, message.content_type, sender=message.sender, recipients=[self.identity], timestamp=message.timestamp, additional_headers=message.additional_headers) def dispatch_private_message(self, session, message): # Private messages are delivered to all sessions matching the recipient but also to the sender, # for replication in clients recipient = message.recipients[0] for s in (s for s in self.sessions if s is not session and s.remote_identity.uri in (recipient.uri, session.remote_identity.uri)): try: chat_stream = next(stream for stream in s.streams if stream.type == 'chat') except StopIteration: continue chat_stream.send_message(message.body, message.content_type, sender=message.sender, recipients=[recipient], timestamp=message.timestamp, additional_headers=message.additional_headers) def dispatch_iscomposing(self, session, data): for s in (s for s in self.sessions if s is not session): try: chat_stream = next(stream for stream in s.streams if stream.type == 'chat') except StopIteration: continue identity = CPIMIdentity(session.remote_identity.uri, session.remote_identity.display_name) chat_stream.send_composing_indication(data.state, data.refresh, sender=identity, recipients=[self.identity]) def dispatch_private_iscomposing(self, session, data): recipient_uri = data.recipients[0].uri for s in (s for s in self.sessions if s is not session and s.remote_identity.uri == recipient_uri): try: chat_stream = next(stream for stream in s.streams if stream.type == 'chat') except StopIteration: continue identity = CPIMIdentity(session.remote_identity.uri, session.remote_identity.display_name) chat_stream.send_composing_indication(data.state, data.refresh, sender=identity) def dispatch_server_message(self, body, content_type='text/plain', exclude=None): for session in (session for session in self.sessions if session is not exclude): try: chat_stream = next(stream for stream in session.streams if stream.type == 'chat') except StopIteration: continue ns = Namespace('urn:ag-projects:xml:ns:cpim', prefix='agp') message_type = CPIMHeader('Message-Type', ns, 'status') chat_stream.send_message(body, content_type, sender=self.identity, recipients=[self.identity], additional_headers=[message_type]) def dispatch_conference_info(self): data = self.conference_info for subscription in (subscription for subscription in self.subscriptions if subscription.state == 'active'): try: subscription.push_content(conference.ConferenceDocument.content_type, data) except (SIPCoreError, SIPCoreInvalidStateError): pass def dispatch_file(self, file): sender_uri = file.sender.uri for uri in set(session.remote_identity.uri for session in self.sessions if str(session.remote_identity.uri) != str(sender_uri)): handler = OutgoingFileTransferHandler(self, uri, file) self.transfer_handlers.add(handler) handler.start() def add_session(self, session): notification_center = NotificationCenter() notification_center.add_observer(self, sender=session) self.sessions.append(session) remote_uri = str(session.remote_identity.uri) self.participants_counter[remote_uri] += 1 try: chat_stream = next(stream for stream in session.streams if stream.type == 'chat') except StopIteration: pass else: notification_center.add_observer(self, sender=chat_stream) try: audio_stream = next(stream for stream in session.streams if stream.type == 'audio') except StopIteration: pass else: notification_center.add_observer(self, sender=audio_stream) log.msg(u'Room %s - audio stream %s/%sHz, end-points: %s:%d <-> %s:%d' % (self.uri, audio_stream.codec, audio_stream.sample_rate, audio_stream.local_rtp_address, audio_stream.local_rtp_port, audio_stream.remote_rtp_address, audio_stream.remote_rtp_port)) if audio_stream.encryption.type != 'ZRTP': # We don't listen for stream notifications early enough if audio_stream.encryption.active: log.msg(u'Room %s - %s audio stream enabled %s encryption' % (self.uri, format_identity(session.remote_identity), audio_stream.encryption.type)) else: log.msg(u'Room %s - %s audio stream did not enable encryption' % (self.uri, format_identity(session.remote_identity))) try: transfer_stream = next(stream for stream in session.streams if stream.type == 'file-transfer') except StopIteration: pass else: if transfer_stream.direction == 'recvonly': transfer_handler = IncomingFileTransferHandler(self, session) transfer_handler.start() txt = u'Room %s - %s is uploading file %s (%s)' % (self.uri, format_identity(session.remote_identity), transfer_stream.file_selector.name.decode('utf-8'), self.format_file_size(transfer_stream.file_selector.size)) else: transfer_handler = OutgoingFileTransferRequestHandler(self, session) transfer_handler.start() txt = u'Room %s - %s requested file %s' % (self.uri, format_identity(session.remote_identity), transfer_stream.file_selector.name.decode('utf-8')) log.msg(txt) self.dispatch_server_message(txt) if len(session.streams) == 1: return welcome_handler = WelcomeHandler(self, initial=True, session=session, streams=session.streams) welcome_handler.run() self.dispatch_conference_info() if len(self.sessions) == 1: log.msg(u'Room %s - started by %s with %s' % (self.uri, format_identity(session.remote_identity), self.format_stream_types(session.streams))) else: log.msg(u'Room %s - %s joined with %s' % (self.uri, format_identity(session.remote_identity), self.format_stream_types(session.streams))) if str(session.remote_identity.uri) not in set(str(s.remote_identity.uri) for s in self.sessions if s is not session): self.dispatch_server_message('%s has joined the room %s' % (format_identity(session.remote_identity), self.format_stream_types(session.streams)), exclude=session) if ServerConfig.enable_bonjour: self._update_bonjour_presence() def remove_session(self, session): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=session) self.sessions.remove(session) self.session_nickname_map.pop(session, None) remote_uri = str(session.remote_identity.uri) self.participants_counter[remote_uri] -= 1 if self.participants_counter[remote_uri] <= 0: del self.participants_counter[remote_uri] self.last_nicknames_map.pop(remote_uri, None) try: chat_stream = next(stream for stream in session.streams or [] if stream.type == 'chat') except StopIteration: pass else: notification_center.remove_observer(self, sender=chat_stream) try: audio_stream = next(stream for stream in session.streams or [] if stream.type == 'audio') except StopIteration: pass else: notification_center.remove_observer(self, sender=audio_stream) try: self.audio_conference.remove(audio_stream) except ValueError: # User may hangup before getting bridged into the conference pass if len(self.audio_conference.streams) == 0: self.moh_player.pause() self.audio_conference.hold() elif len(self.audio_conference.streams) == 1: self.moh_player.play() try: next(stream for stream in session.streams if stream.type == 'file-transfer') except StopIteration: pass else: if len(session.streams) == 1: return self.dispatch_conference_info() log.msg(u'Room %s - %s left conference after %s' % (self.uri, format_identity(session.remote_identity), self.format_session_duration(session))) if not self.sessions: log.msg(u'Room %s - Last participant left conference' % self.uri) if str(session.remote_identity.uri) not in set(str(s.remote_identity.uri) for s in self.sessions if s is not session): self.dispatch_server_message('%s has left the room after %s' % (format_identity(session.remote_identity), self.format_session_duration(session))) if ServerConfig.enable_bonjour: self._update_bonjour_presence() def terminate_sessions(self, uri): if not self.started: return for session in (session for session in self.sessions if session.remote_identity.uri == uri): session.end() def handle_incoming_subscription(self, subscribe_request, data): log.msg('Room %s - subscription from %s' % (self.uri, data.headers['From'].uri)) if subscribe_request.event != 'conference': log.msg('Room %s - Subscription rejected: only conference event is supported' % self.uri) subscribe_request.reject(489) return NotificationCenter().add_observer(self, sender=subscribe_request) self.subscriptions.append(subscribe_request) subscribe_request.accept(conference.ConferenceDocument.content_type, self.conference_info) def _accept_proposal(self, session, streams): try: session.accept_proposal(streams) except IllegalStateError: pass session.proposal_timer = None def add_file(self, file): if file.status == 'INCOMPLETE': self.dispatch_server_message('%s has cancelled upload of file %s (%s)' % (format_identity(file.sender), os.path.basename(file.name), self.format_file_size(file.size))) else: self.dispatch_server_message('%s has uploaded file %s (%s)' % (format_identity(file.sender), os.path.basename(file.name), self.format_file_size(file.size))) self.files.append(file) self.dispatch_conference_info() if ConferenceConfig.push_file_transfer: self.dispatch_file(file) def add_screen_image(self, sender, image): sender_uri = '%s@%s' % (sender.uri.user, sender.uri.host) screen_image = self.screen_images.setdefault(sender_uri, ScreenImage(self, sender)) screen_image.save(image) def _update_bonjour_presence(self): num = len(self.sessions) if num == 0: num_str = 'No' elif num == 1: num_str = 'One' elif num == 2: num_str = 'Two' else: num_str = str(num) txt = u'%s participant%s' % (num_str, '' if num==1 else 's') presence_state = BonjourPresenceState('available', txt) if self.bonjour_services is Null: # This is the room being published all the time from sylk.applications.conference import ConferenceApplication ConferenceApplication().bonjour_room_service.presence_state = presence_state else: self.bonjour_services.presence_state = presence_state @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_RTPStreamDidEnableEncryption(self, notification): stream = notification.sender session = stream.session log.msg(u'Room %s - %s %s stream enabled %s encryption' % (self.uri, format_identity(session.remote_identity), stream.type, stream.encryption.type)) def _NH_RTPStreamDidNotEnableEncryption(self, notification): stream = notification.sender session = stream.session log.msg(u'Room %s - %s %s stream did not enable encryption: %s' % (self.uri, format_identity(session.remote_identity), stream.type, notification.data.reason)) def _NH_RTPStreamZRTPReceivedSAS(self, notification): if not self.config.zrtp_auto_verify: return stream = notification.sender session = stream.session sas = notification.data.sas # Send ZRTP SAS over the chat stream, if available try: chat_stream = next(stream for stream in session.streams if stream.type=='chat') except StopIteration: return # Only send the message if there are no relays in between secure_chat = chat_stream.transport == 'tls' and all(len(path)==1 for path in (chat_stream.msrp.full_local_path, chat_stream.msrp.full_remote_path)) if secure_chat: txt = 'Received ZRTP Short Authentication String: %s' % sas # Don't set the remote identity, that way it will appear as a private message ns = Namespace('urn:ag-projects:xml:ns:cpim', prefix='agp') message_type = CPIMHeader('Message-Type', ns, 'status') chat_stream.send_message(txt, 'text/plain', sender=self.identity, additional_headers=[message_type]) def _NH_RTPStreamDidTimeout(self, notification): stream = notification.sender if stream.type != 'audio': return session = stream.session log.msg(u'Room %s - audio stream for session %s timed out' % (self.uri, format_identity(session.remote_identity))) if session.streams == [stream]: session.end() def _NH_ChatStreamGotMessage(self, notification): stream = notification.sender data = notification.data session = notification.sender.session message = data.message content_type = message.content_type.lower() if content_type.startswith(('text/', 'image/')): stream.msrp_session.send_report(notification.data.chunk, 200, 'OK') self.incoming_message_queue.send((session, 'message', data)) elif content_type == 'application/blink-screensharing': stream.msrp_session.send_report(notification.data.chunk, 200, 'OK') self.add_screen_image(message.sender, message.body) elif content_type == 'application/blink-zrtp-sas': if not self.config.zrtp_auto_verify: stream.msrp_session.send_report(notification.data.chunk, 413, 'Unwanted message') return try: audio_stream = next(stream for stream in session.streams if stream.type=='audio' and stream.encryption.active and stream.encryption.type=='ZRTP') except StopIteration: stream.msrp_session.send_report(notification.data.chunk, 413, 'Unwanted message') return # Only trust it if there was a direct path and the transport is TLS secure_chat = stream.transport == 'tls' and all(len(path)==1 for path in (stream.msrp.full_local_path, stream.msrp.full_remote_path)) remote_sas = str(message.body) if remote_sas == audio_stream.encryption.zrtp.sas and secure_chat: audio_stream.encryption.zrtp.verified = True stream.msrp_session.send_report(notification.data.chunk, 200, 'OK') else: stream.msrp_session.send_report(notification.data.chunk, 413, 'Unwanted message') else: stream.msrp_session.send_report(notification.data.chunk, 413, 'Unwanted message') def _NH_ChatStreamGotComposingIndication(self, notification): stream = notification.sender stream.msrp_session.send_report(notification.data.chunk, 200, 'OK') data = notification.data session = notification.sender.session self.incoming_message_queue.send((session, 'composing_indication', data)) def _NH_ChatStreamGotNicknameRequest(self, notification): nickname = notification.data.nickname session = notification.sender.session chunk = notification.data.chunk if nickname: if nickname in self.session_nickname_map.values() and (session not in self.session_nickname_map or self.session_nickname_map[session] != nickname): notification.sender.reject_nickname(chunk, 425, 'Nickname reserved or already in use') return self.session_nickname_map[session] = nickname self.last_nicknames_map[str(session.remote_identity.uri)] = nickname else: self.session_nickname_map.pop(session, None) self.last_nicknames_map.pop(str(session.remote_identity.uri), None) notification.sender.accept_nickname(chunk) self.dispatch_conference_info() def _NH_SIPIncomingSubscriptionDidEnd(self, notification): subscription = notification.sender try: self.subscriptions.remove(subscription) except ValueError: pass else: notification.center.remove_observer(self, sender=subscription) def _NH_SIPSessionDidChangeHoldState(self, notification): session = notification.sender if notification.data.originator == 'remote': if notification.data.on_hold: log.msg(u'Room %s - %s has put the audio session on hold' % (self.uri, format_identity(session.remote_identity))) else: log.msg(u'Room %s - %s has taken the audio session out of hold' % (self.uri, format_identity(session.remote_identity))) self.dispatch_conference_info() def _NH_SIPSessionNewProposal(self, notification): if notification.data.originator == 'remote': session = notification.sender audio_streams = [stream for stream in notification.data.proposed_streams if stream.type=='audio'] chat_streams = [stream for stream in notification.data.proposed_streams if stream.type=='chat'] if not audio_streams and not chat_streams: session.reject_proposal() return streams = [streams[0] for streams in (audio_streams, chat_streams) if streams] timer = reactor.callLater(3, self._accept_proposal, session, streams) old_timer = getattr(session, 'proposal_timer', None) assert old_timer is None session.proposal_timer = timer def _NH_SIPSessionProposalRejected(self, notification): if notification.data.originator == 'remote': session = notification.sender timer = getattr(session, 'proposal_timer', None) if timer is not None: timer.cancel() session.proposal_timer = None def _NH_SIPSessionHadProposalFailure(self, notification): if notification.data.originator == 'remote': session = notification.sender timer = getattr(session, 'proposal_timer', None) assert timer is not None timer.cancel() session.proposal_timer = None def _NH_SIPSessionDidRenegotiateStreams(self, notification): session = notification.sender for stream in notification.data.added_streams: notification.center.add_observer(self, sender=stream) txt = u'%s has added %s' % (format_identity(session.remote_identity), stream.type) log.msg(u'Room %s - %s' % (self.uri, txt)) self.dispatch_server_message(txt, exclude=session) if stream.type == 'audio': log.msg(u'Room %s - audio stream %s/%sHz, end-points: %s:%d <-> %s:%d' % (self.uri, stream.codec, stream.sample_rate, stream.local_rtp_address, stream.local_rtp_port, stream.remote_rtp_address, stream.remote_rtp_port)) if stream.encryption.type != 'ZRTP': # We don't listen for stream notifications early enough if stream.encryption.active: log.msg(u'Room %s - %s %s stream enabled %s encryption' % (self.uri, format_identity(session.remote_identity), stream.type, stream.encryption.type)) else: log.msg(u'Room %s - %s %s stream did not enable encryption' % (self.uri, format_identity(session.remote_identity), stream.type)) if notification.data.added_streams: welcome_handler = WelcomeHandler(self, initial=False, session=session, streams=notification.data.added_streams) welcome_handler.run() for stream in notification.data.removed_streams: notification.center.remove_observer(self, sender=stream) txt = u'%s has removed %s' % (format_identity(session.remote_identity), stream.type) log.msg(u'Room %s - %s' % (self.uri, txt)) self.dispatch_server_message(txt, exclude=session) if stream.type == 'audio': try: self.audio_conference.remove(stream) except ValueError: # User may hangup before getting bridged into the conference pass if len(self.audio_conference.streams) == 0: self.moh_player.pause() self.audio_conference.hold() elif len(self.audio_conference.streams) == 1: self.moh_player.play() if not session.streams: log.msg(u'Room %s - %s has removed all streams, session will be terminated' % (self.uri, format_identity(session.remote_identity))) session.end() self.dispatch_conference_info() def _NH_SIPSessionTransferNewIncoming(self, notification): log.msg(u'Room %s - Call transfer request rejected, REFER must be out of dialog (RFC4579 5.5)' % self.uri) notification.sender.reject_transfer(403) def _NH_SIPSessionWillEnd(self, notification): session = notification.sender timer = getattr(session, 'proposal_timer', None) if timer is not None and timer.isActive(): timer.cancel() session.proposal_timer = None @staticmethod def format_stream_types(streams): if not streams: return '' if len(streams) == 1: txt = 'with %s' % streams[0].type else: txt = 'with %s' % ','.join(stream.type for stream in streams[:-1]) txt += ' and %s' % streams[-1:][0].type return txt @staticmethod def format_conference_stream_type(stream): if stream.type == 'chat': return 'message' return stream.type @staticmethod def format_session_duration(session): if session.start_time: duration = session.end_time - session.start_time seconds = duration.seconds if duration.microseconds < 500000 else duration.seconds+1 minutes, seconds = seconds / 60, seconds % 60 hours, minutes = minutes / 60, minutes % 60 hours += duration.days*24 if not minutes and not hours: duration_text = '%d seconds' % seconds elif not hours: duration_text = '%02d:%02d' % (minutes, seconds) else: duration_text = '%02d:%02d:%02d' % (hours, minutes, seconds) else: duration_text = '0s' return duration_text @staticmethod def format_file_size(size): infinite = float('infinity') boundaries = [( 1024, '%d bytes', 1), ( 10*1024, '%.2f KB', 1024.0), ( 1024*1024, '%.1f KB', 1024.0), ( 10*1024*1024, '%.2f MB', 1024*1024.0), (1024*1024*1024, '%.1f MB', 1024*1024.0), (10*1024*1024*1024, '%.2f GB', 1024*1024*1024.0), ( infinite, '%.1f GB', 1024*1024*1024.0)] for boundary, format, divisor in boundaries: if size < boundary: return format % (size/divisor,) else: return "%d bytes" % size class MoHPlayer(object): implements(IObserver) def __init__(self, conference): self.conference = conference self.files = None self.paused = None self._player = None def start(self): files = glob('%s/*.wav' % Resources.get('sounds/moh')) if not files: log.error(u'No files found, MoH is disabled') return random.shuffle(files) self.files = cycle(files) self._player = WavePlayer(SIPApplication.voice_audio_mixer, '', pause_time=1, initial_delay=1, volume=20) self.paused = True self.conference.bridge.add(self._player) NotificationCenter().add_observer(self, sender=self._player) def stop(self): if self._player is None: return NotificationCenter().remove_observer(self, sender=self._player) self._player.stop() self.paused = True self.conference.bridge.remove(self._player) self.conference = None def play(self): if self._player is not None and self.paused: self.paused = False self._play_next_file() def pause(self): if self._player is not None and not self.paused: self.paused = True self._player.stop() def _play_next_file(self): self._player.filename = next(self.files) self._player.play() @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_WavePlayerDidFail(self, notification): if not self.paused: self._play_next_file() _NH_WavePlayerDidEnd = _NH_WavePlayerDidFail class WelcomeHandler(object): implements(IObserver) def __init__(self, room, initial, session, streams): self.room = room self.initial = initial self.session = session self.streams = streams self.procs = proc.RunningProcSet() @run_in_green_thread def run(self): notification_center = NotificationCenter() notification_center.add_observer(self, sender=self.session) for stream in self.streams: if stream.type == 'audio': self.procs.spawn(self.audio_welcome, stream) elif stream.type == 'chat': self.procs.spawn(self.chat_welcome, stream) self.procs.waitall() notification_center.remove_observer(self, sender=self.session) self.session = None self.streams = None self.room = None self.procs = None def play_file_in_player(self, player, file, delay): player.filename = file player.pause_time = delay try: player.play().wait() except WavePlayerError, e: log.warning(u"Error playing file %s: %s" % (file, e)) def audio_welcome(self, stream): player = WavePlayer(stream.mixer, '', pause_time=1, initial_delay=1, volume=50) stream.bridge.add(player) try: if self.initial: file = Resources.get('sounds/co_welcome_conference.wav') self.play_file_in_player(player, file, 1) user_count = len(set(str(s.remote_identity.uri) for s in self.room.sessions if any(stream for stream in s.streams if stream.type == 'audio')) - set([str(self.session.remote_identity.uri)])) if user_count == 0: file = Resources.get('sounds/co_only_one.wav') self.play_file_in_player(player, file, 0.5) elif user_count == 1: file = Resources.get('sounds/co_there_is_one.wav') self.play_file_in_player(player, file, 0.5) elif user_count < 100: file = Resources.get('sounds/co_there_are.wav') self.play_file_in_player(player, file, 0.2) if user_count <= 24: file = Resources.get('sounds/bi_%d.wav' % user_count) self.play_file_in_player(player, file, 0.1) else: file = Resources.get('sounds/bi_%d0.wav' % (user_count / 10)) self.play_file_in_player(player, file, 0.1) file = Resources.get('sounds/bi_%d.wav' % (user_count % 10)) self.play_file_in_player(player, file, 0.1) file = Resources.get('sounds/co_more_participants.wav') self.play_file_in_player(player, file, 0) file = Resources.get('sounds/connected_tone.wav') self.play_file_in_player(player, file, 0.1) except proc.ProcExit: # No need to remove the bridge from the stream, it's done automatically pass else: stream.bridge.remove(player) self.room.audio_conference.add(stream) self.room.audio_conference.unhold() if len(self.room.audio_conference.streams) == 1: self.room.moh_player.play() else: self.room.moh_player.pause() finally: player.stop() def chat_welcome(self, stream): if self.initial: txt = 'Welcome to SylkServer!' else: txt = '' user_count = len(set(str(s.remote_identity.uri) for s in self.room.sessions) - set([str(self.session.remote_identity.uri)])) if user_count == 0: txt += ' You are the first participant' else: if user_count == 1: txt += ' There is one more participant' else: txt += ' There are %s more participants' % user_count txt += ' in this conference room.' if not ServerConfig.enable_bonjour: if self.room.config.advertise_xmpp_support or self.room.config.pstn_access_numbers: txt += '\n\nOther participants can join at these addresses:\n\n' if self.room.config.pstn_access_numbers: if len(self.room.config.pstn_access_numbers) == 1: nums = self.room.config.pstn_access_numbers[0] else: nums = ', '.join(self.room.config.pstn_access_numbers[:-1]) + ' or %s' % self.room.config.pstn_access_numbers[-1] txt += ' - Using a landline or mobile phone, dial %s (audio)\n' % nums if self.room.config.advertise_xmpp_support: txt += ' - Using an XMPP client, connect to group chat room %s (chat)\n' % self.room.uri txt += ' - Using an XMPP Jingle capable client, add contact %s and call it (audio)\n' % self.room.uri txt += ' - Using a SIP client, initiate a session to %s (audio and chat)\n' % self.room.uri stream.send_message(txt, 'text/plain', sender=self.room.identity, recipients=[self.room.identity]) for msg in self.room.history: stream.send_message(msg.body, msg.content_type, sender=msg.sender, recipients=[self.room.identity], timestamp=msg.timestamp) # Send ZRTP SAS over the chat stream, if applicable if self.room.config.zrtp_auto_verify: session = stream.session try: audio_stream = next(stream for stream in session.streams if stream.type=='audio') except StopIteration: pass else: if audio_stream.encryption.type == 'ZRTP' and audio_stream.encryption.active: # Only send the message if there are no relays in between secure_chat = stream.transport == 'tls' and all(len(path)==1 for path in (stream.msrp.full_local_path, stream.msrp.full_remote_path)) sas = audio_stream.encryption.zrtp.sas if sas is not None and secure_chat: txt = 'Received ZRTP Short Authentication String: %s' % sas # Don't set the remote identity, that way it will appear as a private message ns = Namespace('urn:ag-projects:xml:ns:cpim', prefix='agp') message_type = CPIMHeader('Message-Type', ns, 'status') stream.send_message(txt, 'text/plain', sender=self.room.identity, additional_headers=[message_type]) def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionWillEnd(self, notification): self.procs.killall() class RoomFile(object): def __init__(self, name, hash, size, sender, status): self.name = name self.hash = hash self.size = size self.sender = sender self.status = status @property def file_selector(self): return FileSelector.for_file(self.name.encode('utf-8'), hash=self.hash) class IncomingFileTransferHandler(object): implements(IObserver) def __init__(self, room, session): self.room = weakref.ref(room) self.room_uri = room.uri self.session = session self.stream = next(stream for stream in self.session.streams if stream.type == 'file-transfer' and stream.direction == 'recvonly') self.error = False self.ended = False self.file = None self.file_selector = None self.filename = None self.hash = None self.status = None self.timer = None self.transfer_finished = False def start(self): self.file_selector = self.stream.file_selector path = os.path.join(ConferenceConfig.file_transfer_dir, self.room_uri) makedirs(path) self.filename = filename = os.path.join(path, self.file_selector.name.decode('utf-8')) basename, ext = os.path.splitext(filename) i = 1 while os.path.exists(filename): filename = '%s_%d%s' % (basename, i, ext) i += 1 self.filename = filename try: self.file = open(self.filename, 'wb') except EnvironmentError: log.msg('Room %s - cannot write destination filename: %s' % (self.room_uri, self.filename)) self.session.end() return notification_center = NotificationCenter() notification_center.add_observer(self, sender=self) notification_center.add_observer(self, sender=self.session) notification_center.add_observer(self, sender=self.stream) self.hash = hashlib.sha1() @run_in_thread('file-transfer') def write_chunk(self, data): notification_center = NotificationCenter() if data is not None: try: self.file.write(data) except EnvironmentError, e: notification_center.post_notification('IncomingFileTransferHandlerGotError', sender=self, data=NotificationData(error=str(e))) else: self.hash.update(data) else: self.file.close() if self.error: notification_center.post_notification('IncomingFileTransferHandlerDidFail', sender=self) else: notification_center.post_notification('IncomingFileTransferHandlerDidEnd', sender=self) @run_in_thread('file-io') def remove_bogus_file(self, filename): try: os.unlink(filename) except OSError: pass @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidEnd(self, notification): self.ended = True 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) # Mark end of write operation self.write_chunk(None) def _NH_FileTransferStreamGotChunk(self, notification): self.write_chunk(notification.data.content) def _NH_FileTransferStreamDidFinish(self, notification): self.transfer_finished = True if self.timer is None: self.timer = reactor.callLater(5, self.session.end) def _NH_IncomingFileTransferHandlerGotError(self, notification): log.error('Error while handling incoming file transfer: %s' % notification.data.error) self.error = True self.status = notification.data.error if not self.ended and self.timer is None: self.timer = reactor.callLater(5, self.session.end) def _NH_IncomingFileTransferHandlerDidEnd(self, notification): notification.center.remove_observer(self, sender=self) remote_hash = self.file_selector.hash if not self.transfer_finished: log.msg('File transfer of %s cancelled' % os.path.basename(self.filename)) self.remove_bogus_file(self.filename) self.status = 'INCOMPLETE' else: local_hash = 'sha1:' + ':'.join(re.findall(r'..', self.hash.hexdigest().upper())) if local_hash != remote_hash: log.warning('Hash of transferred file does not match the remote hash (file may have changed).') self.status = 'Hash missmatch' self.remove_bogus_file(self.filename) else: self.status = 'OK' sender = CPIMIdentity(self.session.remote_identity.uri, self.session.remote_identity.display_name) file = RoomFile(self.filename, remote_hash, self.file_selector.size, sender, self.status) room = self.room() or Null room.add_file(file) self.session = None self.stream = None def _NH_IncomingFileTransferHandlerDidFail(self, notification): notification.center.remove_observer(self, sender=self) sender = CPIMIdentity(self.session.remote_identity.uri, self.session.remote_identity.display_name) file = RoomFile(self.filename, self.file_selector.hash, self.file_selector.size, sender, self.status) room = self.room() or Null room.add_file(file) self.session = None self.stream = None class OutgoingFileTransferRequestHandler(object): implements(IObserver) def __init__(self, room, session): self.room = weakref.ref(room) self.session = session self.stream = next(stream for stream in self.session.streams if stream.type == 'file-transfer') self.timer = None def start(self): notification_center = NotificationCenter() notification_center.add_observer(self, sender=self.session) notification_center.add_observer(self, sender=self.stream) @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_FileTransferStreamDidFinish(self, notification): 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 = NotificationCenter() notification_center.remove_observer(self, sender=self.stream) notification_center.remove_observer(self, sender=self.session) self.session = None self.stream = None _NH_SIPSessionDidFail = _NH_SIPSessionDidEnd class InterruptFileTransfer(Exception): pass class OutgoingFileTransferHandler(object): implements(IObserver) def __init__(self, room, destination, file): self.room_uri = room.identity.uri self.destination = destination self.file = file self.session = None self.stream = None self.timer = None @run_in_green_thread def start(self): self.greenlet = api.getcurrent() 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 = SIPURI.new(self.destination) lookup = DNSLookup() try: route = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait()[0] except (DNSLookupError, IndexError): return notification_center = NotificationCenter() self.session = Session(account) - self.stream = FileTransferStream(self.file.file_selector, 'sendonly') + self.stream = MediaStreamRegistry().get('file-transfer')(self.file.file_selector, 'sendonly') notification_center.add_observer(self, sender=self.session) notification_center.add_observer(self, sender=self.stream) from_header = FromHeader(SIPURI.new(self.room_uri), u'Conference File Transfer') to_header = ToHeader(SIPURI.new(self.destination)) extra_headers = [] if ThorNodeConfig.enabled: extra_headers.append(Header('Thor-Scope', 'conference-invitation')) extra_headers.append(Header('X-Originator-From', str(self.file.sender.uri))) extra_headers.append(SubjectHeader(u'File uploaded by %s' % self.file.sender)) self.session.connect(from_header, to_header, route=route, streams=[self.stream], is_focus=True, extra_headers=extra_headers) 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): 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 = NotificationCenter() notification_center.remove_observer(self, sender=self.stream) notification_center.remove_observer(self, sender=self.session) self.session = None self.stream = None _NH_SIPSessionDidFail = _NH_SIPSessionDidEnd diff --git a/sylk/applications/xmppgateway/im.py b/sylk/applications/xmppgateway/im.py index 225fc43..3eb44df 100644 --- a/sylk/applications/xmppgateway/im.py +++ b/sylk/applications/xmppgateway/im.py @@ -1,451 +1,451 @@ # Copyright (C) 2012 AG Projects. See LICENSE for details # from application.notification import IObserver, NotificationCenter, NotificationData from application.python import Null from application.python.descriptor import WriteOnceAttribute from collections import deque from eventlib import coros from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import SIPURI from sipsimple.core import ContactHeader, FromHeader, RouteHeader, ToHeader from sipsimple.core import Message as SIPMessageRequest from sipsimple.lookup import DNSLookup, DNSLookupError +from sipsimple.streams import MediaStreamRegistry from sipsimple.streams.applications.chat import CPIMIdentity from sipsimple.threading import run_in_twisted_thread from sipsimple.threading.green import run_in_green_thread, run_in_waitable_green_thread from twisted.internet import reactor from zope.interface import implements from sylk.accounts import DefaultAccount from sylk.applications.xmppgateway.configuration import XMPPGatewayConfig from sylk.applications.xmppgateway.datatypes import Identity, FrozenURI, generate_sylk_resource, encode_resource from sylk.applications.xmppgateway.logger import log from sylk.applications.xmppgateway.xmpp import XMPPManager from sylk.applications.xmppgateway.xmpp.session import XMPPChatSession from sylk.applications.xmppgateway.xmpp.stanzas import ChatMessage from sylk.session import Session -from sylk.streams import ChatStream __all__ = ['ChatSessionHandler', 'SIPMessageSender', 'SIPMessageError'] SESSION_TIMEOUT = XMPPGatewayConfig.sip_session_timeout 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 = ChatStream() + 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) def chunks(text, size): for i in xrange(0, len(text), size): yield text[i:i+size] class SIPMessageError(Exception): def __init__(self, code, reason): Exception.__init__(self, reason) self.code = code self.reason = reason class SIPMessageSender(object): implements(IObserver) def __init__(self, message): # TODO: sometimes we may want to send it to the GRUU, for example when a XMPP client # replies to one of our messages. MESSAGE requests don't need a Contact header, though # so how should we communicate our GRUU to the recipient? self.from_uri = message.sender.uri.as_sip_uri() self.from_uri.parameters.pop('gr', None) # No GRUU in From header self.to_uri = message.recipient.uri.as_sip_uri() self.to_uri.parameters.pop('gr', None) # Don't send it to the GRUU self.body = message.body self.content_type = 'text/plain' self._requests = set() self._channel = coros.queue() @run_in_waitable_green_thread def send(self): 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 = self.to_uri try: routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait() except DNSLookupError: msg = 'DNS lookup error while looking for %s proxy' % uri log.warning(msg) raise SIPMessageError(0, msg) else: route = routes.pop(0) from_header = FromHeader(self.from_uri) to_header = ToHeader(self.to_uri) route_header = RouteHeader(route.uri) notification_center = NotificationCenter() for chunk in chunks(self.body, 1000): request = SIPMessageRequest(from_header, to_header, route_header, self.content_type, self.body) notification_center.add_observer(self, sender=request) self._requests.add(request) request.send() error = None count = len(self._requests) while count > 0: notification = self._channel.wait() if notification.name == 'SIPMessageDidFail': error = (notification.data.code, notification.data.reason) count -= 1 self._requests.clear() if error is not None: raise SIPMessageError(*error) @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPMessageDidSucceed(self, notification): notification.center.remove_observer(self, sender=notification.sender) self._channel.send(notification) def _NH_SIPMessageDidFail(self, notification): notification.center.remove_observer(self, sender=notification.sender) self._channel.send(notification) diff --git a/sylk/applications/xmppgateway/muc.py b/sylk/applications/xmppgateway/muc.py index 2acc679..bbb7c44 100644 --- a/sylk/applications/xmppgateway/muc.py +++ b/sylk/applications/xmppgateway/muc.py @@ -1,470 +1,470 @@ # Copyright (C) 2012 AG Projects. See LICENSE for details # import random import uuid from application.notification import IObserver, NotificationCenter, NotificationData from application.python import Null, limit from application.python.descriptor import WriteOnceAttribute from eventlib import coros, proc from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import Engine, SIPURI, SIPCoreError, Referral, sip_status_messages from sipsimple.core import ContactHeader, FromHeader, ToHeader, ReferToHeader, RouteHeader from sipsimple.lookup import DNSLookup, DNSLookupError +from sipsimple.streams import MediaStreamRegistry from sipsimple.streams.msrp import ChatStreamError from sipsimple.streams.applications.chat import CPIMIdentity from sipsimple.threading import run_in_twisted_thread from sipsimple.threading.green import run_in_green_thread from time import time from twisted.internet import reactor from zope.interface import implements from sylk.accounts import DefaultAccount from sylk.applications.xmppgateway.datatypes import Identity, FrozenURI, encode_resource from sylk.applications.xmppgateway.logger import log from sylk.applications.xmppgateway.xmpp import XMPPManager from sylk.applications.xmppgateway.xmpp.session import XMPPIncomingMucSession from sylk.applications.xmppgateway.xmpp.stanzas import MUCAvailabilityPresence, MUCErrorPresence, OutgoingInvitationMessage, STANZAS_NS from sylk.configuration import SIPConfig from sylk.session import Session -from sylk.streams import ChatStream class ReferralError(Exception): def __init__(self, error, code=0): self.error = error self.code = code class SIPReferralDidFail(Exception): def __init__(self, data): self.data = data class MucInvitationFailure(object): def __init__(self, code, reason): self.code = code self.reason = reason def __str__(self): return '%s (%s)' % (self.code, self.reason) class X2SMucInvitationHandler(object): implements(IObserver) def __init__(self, sender, recipient, participant): self.sender = sender self.recipient = recipient self.participant = participant self.active = False self.route = None self._channel = coros.queue() self._referral = None self._failure = None def start(self): notification_center = NotificationCenter() notification_center.add_observer(self, name='NetworkConditionsDidChange') proc.spawn(self._run) notification_center.post_notification('X2SMucInvitationHandlerDidStart', sender=self) def _run(self): notification_center = NotificationCenter() settings = SIPSimpleSettings() sender_uri = self.sender.uri.as_sip_uri() recipient_uri = self.recipient.uri.as_sip_uri() participant_uri = self.participant.uri.as_sip_uri() try: # Lookup routes account = DefaultAccount() if account.sip.outbound_proxy is not None and account.sip.outbound_proxy.transport in settings.sip.transport_list: uri = SIPURI(host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) elif account.sip.always_use_my_proxy: uri = SIPURI(host=account.id.domain) else: uri = SIPURI.new(recipient_uri) lookup = DNSLookup() try: routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait() except DNSLookupError, e: timeout = random.uniform(15, 30) raise ReferralError(error='DNS lookup failed: %s' % e) timeout = time() + 30 for route in routes: self.route = route remaining_time = timeout - time() if remaining_time > 0: transport = route.transport parameters = {} if transport=='udp' else {'transport': transport} contact_uri = SIPURI(user=account.contact.username, host=SIPConfig.local_ip.normalized, port=getattr(Engine(), '%s_port' % transport), parameters=parameters) refer_to_header = ReferToHeader(str(participant_uri)) refer_to_header.parameters['method'] = 'INVITE' referral = Referral(recipient_uri, FromHeader(sender_uri), ToHeader(recipient_uri), refer_to_header, ContactHeader(contact_uri), RouteHeader(route.uri), account.credentials) notification_center.add_observer(self, sender=referral) try: referral.send_refer(timeout=limit(remaining_time, min=1, max=5)) except SIPCoreError: notification_center.remove_observer(self, sender=referral) timeout = 5 raise ReferralError(error='Internal error') self._referral = referral try: while True: notification = self._channel.wait() if notification.name == 'SIPReferralDidStart': break except SIPReferralDidFail, e: notification_center.remove_observer(self, sender=referral) self._referral = None if e.data.code in (403, 405): raise ReferralError(error=sip_status_messages[e.data.code], code=e.data.code) else: # Otherwise just try the next route continue else: break else: self.route = None raise ReferralError(error='No more routes to try') # At this point it is subscribed. Handle notifications and ending/failures. try: self.active = True while True: notification = self._channel.wait() if notification.name == 'SIPReferralDidEnd': break except SIPReferralDidFail, e: notification_center.remove_observer(self, sender=self._referral) raise ReferralError(error=e.data.reason, code=e.data.code) else: notification_center.remove_observer(self, sender=self._referral) finally: self.active = False except ReferralError, e: self._failure = MucInvitationFailure(e.code, e.error) finally: notification_center.remove_observer(self, name='NetworkConditionsDidChange') self._referral = None if self._failure is not None: notification_center.post_notification('X2SMucInvitationHandlerDidFail', sender=self, data=NotificationData(failure=self._failure)) else: notification_center.post_notification('X2SMucInvitationHandlerDidEnd', sender=self) def _refresh(self): account = DefaultAccount() transport = self.route.transport parameters = {} if transport=='udp' else {'transport': transport} contact_uri = SIPURI(user=account.contact.username, host=SIPConfig.local_ip.normalized, port=getattr(Engine(), '%s_port' % transport), parameters=parameters) contact_header = ContactHeader(contact_uri) self._referral.refresh(contact_header=contact_header, timeout=2) @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPReferralDidStart(self, notification): self._channel.send(notification) def _NH_SIPReferralDidEnd(self, notification): self._channel.send(notification) def _NH_SIPReferralDidFail(self, notification): self._channel.send_exception(SIPReferralDidFail(notification.data)) def _NH_SIPReferralGotNotify(self, notification): self._channel.send(notification) def _NH_NetworkConditionsDidChange(self, notification): if self.active: self._refresh() class S2XMucInvitationHandler(object): implements(IObserver) def __init__(self, session, sender, recipient, inviter): self.session = session self.sender = sender self.recipient = recipient self.inviter = inviter self._timer = None self._failure = None def start(self): notification_center = NotificationCenter() notification_center.add_observer(self, sender=self.session) stanza = OutgoingInvitationMessage(self.sender, self.recipient, self.inviter, id='MUC.'+uuid.uuid4().hex) xmpp_manager = XMPPManager() xmpp_manager.send_muc_stanza(stanza) self._timer = reactor.callLater(90, self._timeout) notification_center.post_notification('S2XMucInvitationHandlerDidStart', sender=self) def stop(self): if self._timer is not None and self._timer.active(): self._timer.cancel() self._timer = None notification_center = NotificationCenter() if self.session is not None: notification_center.remove_observer(self, sender=self.session) reactor.callLater(5, self._end_session, self.session) self.session = None if self._failure is not None: notification_center.post_notification('S2XMucInvitationHandlerDidFail', sender=self, data=NotificationData(failure=self._failure)) else: notification_center.post_notification('S2XMucInvitationHandlerDidEnd', sender=self) def _end_session(self, session): try: session.end(480) except Exception: pass def _timeout(self): NotificationCenter().remove_observer(self, sender=self.session) try: self.session.end(408) except Exception: pass self.session = None self._failure = MucInvitationFailure('Timeout', 408) self.stop() def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionDidFail(self, notification): notification.center.remove_observer(self, sender=self.session) self.session = None self._failure = MucInvitationFailure(notification.data.reason or notification.data.failure_reason, notification.data.code) self.stop() 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 = ChatStream() + 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.msg("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.msg("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.msg("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.body else: html_body = message.body 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 = CPIMIdentity(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) diff --git a/sylk/streams.py b/sylk/streams.py index aaec128..0622dda 100644 --- a/sylk/streams.py +++ b/sylk/streams.py @@ -1,190 +1,182 @@ # Copyright (C) 2010-2011 AG Projects. See LICENSE for details. # import random from application.notification import NotificationCenter, NotificationData from eventlib import api from msrplib.connect import DirectConnector, DirectAcceptor from msrplib.protocol import URI from msrplib.session import contains_mime_type from msrplib.transport import make_response from sipsimple.core import SDPAttribute from sipsimple.payloads.iscomposing import IsComposingDocument, State, LastActive, Refresh, ContentType from sipsimple.streams.applications.chat import CPIMMessage, CPIMParserError -from sipsimple.streams.msrp import ChatStream as _ChatStream, FileTransferStream as _FileTransferStream +from sipsimple.streams.msrp import ChatStream as _ChatStream, MSRPStreamBase as _MSRPStreamBase from sipsimple.streams.msrp import ChatStreamError, Message, MSRPStreamError, NotificationProxyLogger from sipsimple.threading.green import run_in_green_thread from sipsimple.util import ISOTimestamp from sylk.configuration import SIPConfig, ServerConfig -class MSRPStreamMixin(object): - - @run_in_green_thread - def initialize(self, session, direction): - self.greenlet = api.getcurrent() - notification_center = NotificationCenter() - notification_center.add_observer(self, sender=self) - try: - self.session = session - self.transport = self.session.account.msrp.transport - outgoing = direction=='outgoing' - logger = NotificationProxyLogger() - if self.session.account.msrp.connection_model == 'relay': - if not outgoing and self.remote_role in ('actpass', 'passive'): - # 'passive' not allowed by the RFC but play nice for interoperability. -Saul - self.msrp_connector = DirectConnector(logger=logger, use_sessmatch=True) - self.local_role = 'active' - elif not outgoing: - if self.transport=='tls' and None in (self.session.account.tls_credentials.cert, self.session.account.tls_credentials.key): - raise MSRPStreamError("Cannot accept MSRP connection without a TLS certificate") - self.msrp_connector = DirectAcceptor(logger=logger) - self.local_role = 'passive' - else: - # outgoing - self.msrp_connector = DirectConnector(logger=logger, use_sessmatch=True) - self.local_role = 'active' +@run_in_green_thread +def MSRPStreamBase_initialize(self, session, direction): + self.greenlet = api.getcurrent() + notification_center = NotificationCenter() + notification_center.add_observer(self, sender=self) + try: + self.session = session + self.transport = self.session.account.msrp.transport + outgoing = direction=='outgoing' + logger = NotificationProxyLogger() + if self.session.account.msrp.connection_model == 'relay': + if not outgoing and self.remote_role in ('actpass', 'passive'): + # 'passive' not allowed by the RFC but play nice for interoperability. -Saul + self.msrp_connector = DirectConnector(logger=logger, use_sessmatch=True) + self.local_role = 'active' + elif not outgoing: + if self.transport=='tls' and None in (self.session.account.tls_credentials.cert, self.session.account.tls_credentials.key): + raise MSRPStreamError("Cannot accept MSRP connection without a TLS certificate") + self.msrp_connector = DirectAcceptor(logger=logger) + self.local_role = 'passive' else: - if not outgoing and self.remote_role in ('actpass', 'passive'): - # 'passive' not allowed by the RFC but play nice for interoperability. -Saul - self.msrp_connector = DirectConnector(logger=logger, use_sessmatch=True) - self.local_role = 'active' - else: - if not outgoing and self.transport=='tls' and None in (self.session.account.tls_credentials.cert, self.session.account.tls_credentials.key): - raise MSRPStreamError("Cannot accept MSRP connection without a TLS certificate") - self.msrp_connector = DirectAcceptor(logger=logger, use_sessmatch=True) - self.local_role = 'actpass' if outgoing else 'passive' - full_local_path = self.msrp_connector.prepare(self.local_uri) - self.local_media = self._create_local_media(full_local_path) - except Exception, e: - notification_center.post_notification('MediaStreamDidNotInitialize', self, NotificationData(reason=str(e))) + # outgoing + self.msrp_connector = DirectConnector(logger=logger, use_sessmatch=True) + self.local_role = 'active' else: - notification_center.post_notification('MediaStreamDidInitialize', self) - finally: - self.greenlet = None - - -class ChatStream(MSRPStreamMixin, _ChatStream): + if not outgoing and self.remote_role in ('actpass', 'passive'): + # 'passive' not allowed by the RFC but play nice for interoperability. -Saul + self.msrp_connector = DirectConnector(logger=logger, use_sessmatch=True) + self.local_role = 'active' + else: + if not outgoing and self.transport=='tls' and None in (self.session.account.tls_credentials.cert, self.session.account.tls_credentials.key): + raise MSRPStreamError("Cannot accept MSRP connection without a TLS certificate") + self.msrp_connector = DirectAcceptor(logger=logger, use_sessmatch=True) + self.local_role = 'actpass' if outgoing else 'passive' + full_local_path = self.msrp_connector.prepare(self.local_uri) + self.local_media = self._create_local_media(full_local_path) + except Exception, e: + notification_center.post_notification('MediaStreamDidNotInitialize', self, NotificationData(reason=str(e))) + else: + self._initialized = True + notification_center.post_notification('MediaStreamDidInitialize', self) + finally: + self.greenlet = None + +# Monkey-patch the initialize method +_MSRPStreamBase.initialize = MSRPStreamBase_initialize + + +class ChatStream(_ChatStream): priority = _ChatStream.priority + 1 accept_types = ['message/cpim'] accept_wrapped_types = ['*'] chatroom_capabilities = ['nickname', 'private-messages', 'com.ag-projects.screen-sharing', 'com.ag-projects.zrtp-sas'] @property def local_uri(self): return URI(host=SIPConfig.local_ip.normalized, port=0, use_tls=self.transport=='tls', credentials=self.session.account.tls_credentials) @property def private_messages_allowed(self): # As a server, we always support sending private messages return True def _create_local_media(self, uri_path): local_media = super(ChatStream, self)._create_local_media(uri_path) if self.session.local_focus and self.chatroom_capabilities: caps = self.chatroom_capabilities[:] if ServerConfig.enable_bonjour: caps.remove('private-messages') local_media.attributes.append(SDPAttribute('chatroom', ' '.join(caps))) return local_media def _handle_SEND(self, chunk): # This ChatStream doesn't send MSRP REPORT chunks automatically, the developer needs to manually send them if chunk.size == 0: # keep-alive self.msrp_session.send_report(chunk, 200, 'OK') return if self.direction=='sendonly': self.msrp_session.send_report(chunk, 413, 'Unwanted Message') return if chunk.segment is not None: self.incoming_queue.setdefault(chunk.message_id, []).append(chunk.data) if chunk.final: chunk.data = ''.join(self.incoming_queue.pop(chunk.message_id)) else: self.msrp_session.send_report(chunk, 200, 'OK') return if chunk.content_type.lower() != 'message/cpim': self.msrp_session.send_report(chunk, 415, 'Invalid Content-Type') return try: message = CPIMMessage.parse(chunk.data) except CPIMParserError: self.msrp_session.send_report(chunk, 400, 'CPIM Parser Error') return else: if not contains_mime_type(self.accept_wrapped_types, message.content_type): self.msrp_session.send_report(chunk, 413, 'Unwanted Message') return if message.timestamp is None: message.timestamp = ISOTimestamp.now() if message.sender is None: message.sender = self.remote_identity private = self.session.remote_focus and len(message.recipients) == 1 and message.recipients[0] != self.remote_identity notification_center = NotificationCenter() if message.content_type.lower() == IsComposingDocument.content_type: data = IsComposingDocument.parse(message.body) ndata = NotificationData(state=data.state.value, refresh=data.refresh.value if data.refresh is not None else 120, content_type=data.content_type.value if data.content_type is not None else None, last_active=data.last_active.value if data.last_active is not None else None, sender=message.sender, recipients=message.recipients, private=private, chunk=chunk) notification_center.post_notification('ChatStreamGotComposingIndication', self, ndata) else: notification_center.post_notification('ChatStreamGotMessage', self, NotificationData(message=message, private=private, chunk=chunk)) def _handle_NICKNAME(self, chunk): nickname = chunk.headers['Use-Nickname'].decoded NotificationCenter().post_notification('ChatStreamGotNicknameRequest', self, NotificationData(nickname=nickname, chunk=chunk)) @run_in_green_thread def _send_nickname_response(self, response): try: self.msrp_session.send_chunk(response) except Exception: pass def accept_nickname(self, chunk): if chunk.method != 'NICKNAME': raise ValueError('Incorrect chunk method for accept_nickname: %s' % chunk.method) response = make_response(chunk, 200, 'OK') self._send_nickname_response(response) def reject_nickname(self, chunk, code, reason): if chunk.method != 'NICKNAME': raise ValueError('Incorrect chunk method for accept_nickname: %s' % chunk.method) response = make_response(chunk, code, reason) self._send_nickname_response(response) def send_message(self, content, content_type='text/plain', sender=None, recipients=None, courtesy_recipients=None, subject=None, timestamp=None, required=None, additional_headers=None, message_id=None, notify_progress=True, success_report='yes', failure_report='yes'): if self.direction=='recvonly': raise ChatStreamError('Cannot send message on recvonly stream') if message_id is None: message_id = '%x' % random.getrandbits(64) message = Message(message_id, content, content_type, sender=sender, recipients=recipients, courtesy_recipients=courtesy_recipients, subject=subject, timestamp=timestamp, required=required, additional_headers=additional_headers, failure_report=failure_report, success_report=success_report, notify_progress=notify_progress) self._enqueue_message(message) return message_id def send_composing_indication(self, state, refresh=None, last_active=None, sender=None, recipients=None, message_id=None, notify_progress=False, success_report='no', failure_report='partial'): if self.direction == 'recvonly': raise ChatStreamError('Cannot send message on recvonly stream') if message_id is None: message_id = '%x' % random.getrandbits(64) content = IsComposingDocument.create(state=State(state), refresh=Refresh(refresh) if refresh is not None else None, last_active=LastActive(last_active) if last_active is not None else None, content_type=ContentType('text')) message = Message(message_id, content, IsComposingDocument.content_type, sender=sender, recipients=recipients, failure_report=failure_report, success_report=success_report, notify_progress=notify_progress) self._enqueue_message(message) return message_id - -class FileTransferStream(MSRPStreamMixin, _FileTransferStream): - priority = _FileTransferStream.priority + 1 - - def initialize(self, session, direction): - if self.direction == 'sendonly' and self.file_selector.fd is None: - NotificationCenter().post_notification('MediaStreamDidNotInitialize', sender=self, data=NotificationData(reason='file descriptor not specified')) - return - super(FileTransferStream, self).initialize(session, direction) -