diff --git a/sylk/applications/conference/__init__.py b/sylk/applications/conference/__init__.py index e9667d7..1273045 100644 --- a/sylk/applications/conference/__init__.py +++ b/sylk/applications/conference/__init__.py @@ -1,411 +1,430 @@ # Copyright (C) 2010-2011 AG Projects. See LICENSE for details # import mimetypes import os import re from application.notification import IObserver, NotificationCenter from application.python import Null from gnutls.interfaces.twisted import X509Credentials from sipsimple.account import AccountManager from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import Engine, SIPURI, SIPCoreError, Header, ContactHeader, FromHeader, ToHeader from sipsimple.lookup import DNSLookup from sipsimple.streams import AudioStream from sipsimple.threading.green import run_in_green_thread from twisted.internet import reactor from zope.interface import implements from sylk.applications import ISylkApplication, SylkApplication, ApplicationLogger from sylk.applications.conference.configuration import get_room_config, ConferenceConfig from sylk.applications.conference.database import initialize as init_database from sylk.applications.conference.room import Room from sylk.applications.conference.web import ScreenSharingWebServer from sylk.bonjour import BonjourServices from sylk.configuration import ServerConfig, SIPConfig, ThorNodeConfig from sylk.extensions import ChatStream from sylk.session import Session from sylk.tls import Certificate, PrivateKey log = ApplicationLogger(os.path.dirname(__file__).split(os.path.sep)[-1]) class ACLValidationError(Exception): pass class RoomNotFoundError(Exception): pass class ConferenceApplication(object): __metaclass__ = SylkApplication implements(ISylkApplication, IObserver) __appname__ = 'conference' def __init__(self): self._rooms = {} self.pending_sessions = [] self.invited_participants_map = {} self.bonjour_focus_service = Null() self.bonjour_room_service = Null() self.screen_sharing_web_server = None def start(self): init_database() if ServerConfig.enable_bonjour: self.bonjour_focus_service = BonjourServices(service='sipfocus') self.bonjour_focus_service.start() log.msg("Bonjour publication started for service 'sipfocus'") self.bonjour_room_service = BonjourServices(service='sipuri', name='Conference Room', uri_user='conference') self.bonjour_room_service.start() 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 ConferenceConfig.screen_sharing_certificate is not None: cert = Certificate(ConferenceConfig.screen_sharing_certificate.normalized) key = PrivateKey(ConferenceConfig.screen_sharing_certificate.normalized) credentials = X509Credentials(cert, key) else: credentials = None 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:%d" % (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 incoming session from %s' % session.remote_identity.uri) + 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._invitation.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._invitation.request_uri) except RoomNotFoundError: + log.msg(u'Session rejected: room not found') session.reject(404) return try: file = (file for file in room.files if file.hash == stream.file_selector.hash).next() 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 self.pending_sessions.append(session) 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 + log.msg('New subscription from %s to %s' % (from_header.uri, to_header.uri) + + if subscribe_request.event != 'conference': + log.msg('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 found') 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('Request from %s to %s to join room %s' % (from_header.uri, to_header.uri, refer_to_header.uri) try: self.validate_acl(data.request_uri, from_header.uri) except ACLValidationError: + log.msg(u'Join request rejected: unauthorized by access list') refer_request.reject(403) return referral_handler = IncomingReferralHandler(refer_request, data) referral_handler.start() def incoming_sip_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 in self.pending_sessions: session.accept(streams, is_focus=True) def add_participant(self, session, room_uri): - log.msg('Outgoing session to %s started' % session.remote_identity.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('Outgoing session from room %s 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('%s removed from conference' % 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 self.pending_sessions.remove(session) room = self.get_room(session._invitation.request_uri, True) # FIXME room.start() room.add_session(session) @run_in_green_thread def _NH_SIPSessionDidEnd(self, notification): session = notification.sender - log.msg('Session from %s ended' % session.remote_identity.uri) + log.msg('Session from %s to %s ended' % (session.remote_identity.uri, session.local_identity.uri)) NotificationCenter().remove_observer(self, sender=session) if session.direction == 'incoming': room_uri = session._invitation.request_uri # FIXME 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 self.pending_sessions.remove(session) - log.msg('Session from %s failed' % session.remote_identity.uri) + log.msg('Session from %s to %s failed' % (session.remote_identity.uri, session.local_identity.uri)) 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.headers.get('To').uri 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('Failed to add %s to %s' % (self.refer_to_uri, self.room_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 = AccountManager().sylkserver_account if account.sip.outbound_proxy is not None: uri = SIPURI(host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = self.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('%s removed %s from %s' % (self._refer_headers.get('From').uri, self.refer_to_uri, self.room_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 = AccountManager().sylkserver_account conference_application = ConferenceApplication() try: room = conference_application.get_room(self.room_uri) except RoomNotFoundError: log.msg('Failed to add %s to %s' % (self.refer_to_uri, self.room_uri)) self._refer_request.end(500) return else: active_media = room.active_media if not active_media: log.msg('Failed to add %s to %s' % (self.refer_to_uri, self.room_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()) 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) transport = notification.data.result[0].transport parameters = {} if transport=='udp' else {'transport': transport} contact_header = ContactHeader(SIPURI(user=self.room_uri.user, host=SIPConfig.local_ip.normalized, port=getattr(Engine(), '%s_port' % transport), parameters=parameters)) 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))) subject = u'Join conference request from %s' % original_identity self.session.connect(from_header, to_header, contact_header=contact_header, routes=notification.data.result, streams=self.streams, is_focus=True, subject=subject, 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('%s added %s to %s' % (self._refer_headers.get('From').uri, self.refer_to_uri, self.room_uri)) self.session = None self.streams = [] def _NH_SIPSessionDidFail(self, notification): log.msg('Failed to add %s to %s' % (self.refer_to_uri, self.room_uri)) 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) 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('Failed to add %s to %s' % (self.refer_to_uri, self.room_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 6a3b105..f0876be 100644 --- a/sylk/applications/conference/room.py +++ b/sylk/applications/conference/room.py @@ -1,1138 +1,1141 @@ # 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 from datetime import datetime from glob import glob from itertools import chain, cycle try: from weakref import WeakSet except ImportError: from backports.weakref import WeakSet 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 import AccountManager from sipsimple.application import SIPApplication from sipsimple.audio import WavePlayer, WavePlayerError from sipsimple.conference import AudioConference from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import Engine, SIPCoreError, SIPCoreInvalidStateError, SIPURI from sipsimple.core import Header, ContactHeader, FromHeader, ToHeader from sipsimple.lookup import DNSLookup, DNSLookupError from sipsimple.payloads import conference from sipsimple.streams import FileTransferStream from sipsimple.streams.applications.chat import CPIMIdentity from sipsimple.streams.msrp import ChatStreamError, FileSelector from sipsimple.threading import run_in_thread, run_in_twisted_thread from sipsimple.threading.green import run_in_green_thread from twisted.internet import reactor from zope.interface import implements from sylk.applications import ApplicationLogger from sylk.applications.conference import database from sylk.applications.conference.configuration import ConferenceConfig, URL from sylk.bonjour import BonjourServices from sylk.configuration import ServerConfig, SIPConfig, ThorNodeConfig from sylk.configuration.datatypes import ResourcePath from sylk.session import Session log = ApplicationLogger(os.path.dirname(__file__).split(os.path.sep)[-1]) def format_identity(identity, cpim_format=False): uri = identity.uri if identity.display_name: return u'%s ' % (identity.display_name, uri.user, uri.host) elif cpim_format: return u'' % (uri.user, uri.host) else: return u'sip:%s@%s' % (uri.user, uri.host) class ScreenImage(object): def __init__(self, room, sender): self.room = weakref.ref(room) 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' self.url = URL('%s://%s:%s/' % (scheme, ConferenceConfig.screen_sharing_ip.normalized, 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('Cannot write screen sharing image: %s: %s' % (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 = '%s is sharing the screen at %s' % (format_identity(self.sender, cpim_format=True), 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, cpim_format=True) 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.uri = uri self.identity = CPIMIdentity.parse('' % self.uri) self.identity.display_name = 'Conference Room' self.files = [] self.screen_images = {} self.sessions = [] self.sessions_with_proposals = {} self.subscriptions = [] self.transfer_handlers = 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.bonjour_services = Null() self.session_nickname_map = {} self.last_nicknames_map = {} self.participants_counter = defaultdict(lambda: 0) @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)))) 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 = BonjourServices(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.timestamp is not None: value = message.timestamp timestamp = datetime(value.year, value.month, value.day, value.hour, value.minute, value.second, value.microsecond, value.tzinfo) else: timestamp = datetime.utcnow() recipient = message.recipients[0] sender = message.sender sender.display_name = self.last_nicknames_map.get(str(session.remote_identity.uri), sender.display_name) message.sender = sender database.async_save_message(format_identity(session.remote_identity, True), self.uri, message.body, message.content_type, unicode(message.sender), unicode(recipient), timestamp) private = len(message.recipients) == 1 and recipient.uri != self.identity.uri if private: self.dispatch_private_message(session, message) else: 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 recipient.uri != self.identity.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 = (stream for stream in s.streams if stream.type == 'chat').next() except StopIteration: pass else: try: chat_stream.send_message(message.body, message.content_type, local_identity=message.sender, recipients=[self.identity], timestamp=message.timestamp, additional_headers=message.additional_headers) except ChatStreamError, e: log.error(u'Error dispatching message to %s: %s' % (s.remote_identity.uri, e)) 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 = (stream for stream in s.streams if stream.type == 'chat').next() except StopIteration: continue else: try: chat_stream.send_message(message.body, message.content_type, local_identity=message.sender, recipients=[recipient], timestamp=message.timestamp, additional_headers=message.additional_headers) except ChatStreamError, e: log.error(u'Error dispatching private message to %s: %s' % (s.remote_identity.uri, e)) def dispatch_iscomposing(self, session, data): for s in (s for s in self.sessions if s is not session): try: chat_stream = (stream for stream in s.streams if stream.type == 'chat').next() except StopIteration: pass else: identity = CPIMIdentity.parse(format_identity(session.remote_identity, True)) try: chat_stream.send_composing_indication(data.state, data.refresh, local_identity=identity, recipients=[self.identity]) except ChatStreamError, e: log.error(u'Error dispatching composing indication to %s: %s' % (s.remote_identity.uri, e)) 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 = (stream for stream in s.streams if stream.type == 'chat').next() except StopIteration: continue else: identity = CPIMIdentity.parse(format_identity(session.remote_identity, True)) try: chat_stream.send_composing_indication(data.state, data.refresh, local_identity=identity) except ChatStreamError, e: log.error(u'Error dispatching private composing indication to %s: %s' % (s.remote_identity.uri, e)) 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 = (stream for stream in session.streams if stream.type == 'chat').next() except StopIteration: pass else: chat_stream.send_message(body, content_type, local_identity=self.identity, recipients=[self.identity]) self_identity = format_identity(self.identity, cpim_format=True) database.async_save_message(self_identity, self.uri, body, content_type, self_identity, self_identity, datetime.now()) def dispatch_conference_info(self): data = self.build_conference_info_payload() 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 = CPIMIdentity.parse(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 = (stream for stream in session.streams if stream.type == 'chat').next() except StopIteration: pass else: notification_center.add_observer(self, sender=chat_stream) try: audio_stream = (stream for stream in session.streams if stream.type == 'audio').next() except StopIteration: pass else: notification_center.add_observer(self, sender=audio_stream) log.msg(u'Audio stream using %s/%sHz (%s), end-points: %s:%d <-> %s:%d' % (audio_stream.codec, audio_stream.sample_rate, 'encrypted' if audio_stream.srtp_active else 'unencrypted', audio_stream.local_rtp_address, audio_stream.local_rtp_port, audio_stream.remote_rtp_address, audio_stream.remote_rtp_port)) try: transfer_stream = (stream for stream in session.streams if stream.type == 'file-transfer').next() except StopIteration: pass else: if transfer_stream.direction == 'recvonly': transfer_handler = IncomingFileTransferHandler(self, session) transfer_handler.start() txt = u'%s is uploading file %s (%s)' % (format_identity(session.remote_identity, cpim_format=True), 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'%s requested file %s' % (format_identity(session.remote_identity, cpim_format=True), 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, session) welcome_handler.start() self.dispatch_conference_info() if len(self.sessions) == 1: log.msg(u'%s started conference %s %s' % (format_identity(session.remote_identity), self.uri, self.format_stream_types(session.streams))) else: log.msg(u'%s joined conference %s %s' % (format_identity(session.remote_identity), self.uri, 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) 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: timer = self.sessions_with_proposals.pop(session) except KeyError: pass else: if timer.active(): timer.cancel() try: chat_stream = (stream for stream in session.streams or [] if stream.type == 'chat').next() except StopIteration: pass else: notification_center.remove_observer(self, sender=chat_stream) try: audio_stream = (stream for stream in session.streams or [] if stream.type == 'audio').next() 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: transfer_stream = (stream for stream in session.streams if stream.type == 'file-transfer').next() except StopIteration: pass else: if len(session.streams) == 1: return self.dispatch_conference_info() log.msg(u'%s left conference %s after %s' % (format_identity(session.remote_identity), self.uri, self.format_session_duration(session))) if not self.sessions: log.msg(u'Last participant left conference %s' % 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))) 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 build_conference_info_payload(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) 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()) 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 = (user for user in users if user.entity == str(session.remote_identity.uri)).next() 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 handle_incoming_subscription(self, subscribe_request, data): + log.msg('New %s subscription from %s to %s' % (subscribe_request.event, data.headers['From'].uri, data.headers['To'].uri) if subscribe_request.event != 'conference': + log.msg('Subscription rejected: only conference event is supported') subscribe_request.reject(489) return NotificationCenter().add_observer(self, sender=subscribe_request) data = self.build_conference_info_payload() subscribe_request.accept(conference.ConferenceDocument.content_type, data) self.subscriptions.append(subscribe_request) def accept_proposal(self, session, streams): self.sessions_with_proposals.pop(session) session.accept_proposal(streams) def add_file(self, file): if file.status == 'INCOMPLETE': self.dispatch_server_message('%s has cancelled upload of file %s (%s)' % (file.sender, os.path.basename(file.name), self.format_file_size(file.size))) else: self.dispatch_server_message('%s has uploaded file %s (%s)' % (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) @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_AudioStreamDidTimeout(self, notification): stream = notification.sender session = stream.session log.msg(u'Audio stream for session %s timed out' % format_identity(session.remote_identity)) if session.streams == [stream]: session.end() def _NH_ChatStreamGotMessage(self, notification): stream = notification.sender stream.msrp_session.send_report(notification.data.chunk, 200, 'OK') data = notification.data session = notification.sender.session message = data.message content_type = message.content_type.lower() if content_type.startswith('text/'): self.incoming_message_queue.send((session, 'message', data)) elif content_type == 'application/blink-screensharing': self.add_screen_image(message.sender, message.body) 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 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 notification.center.remove_observer(self, sender=subscription) try: self.subscriptions.remove(subscription) except ValueError: pass def _NH_SIPSessionDidChangeHoldState(self, notification): session = notification.sender if notification.data.originator == 'remote': if notification.data.on_hold: log.msg(u'%s has put the audio session on hold' % format_identity(session.remote_identity)) else: log.msg(u'%s has taken the audio session out of hold' % format_identity(session.remote_identity)) self.dispatch_conference_info() def _NH_SIPSessionGotProposal(self, notification): session = notification.sender audio_streams = [stream for stream in notification.data.streams if stream.type=='audio'] chat_streams = [stream for stream in notification.data.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(4, self.accept_proposal, session, streams) self.sessions_with_proposals[session] = timer def _NH_SIPSessionGotRejectProposal(self, notification): session = notification.sender try: timer = self.sessions_with_proposals.pop(session) except KeyError: # If the proposal couldn't be accepted by us we will not add a timer pass else: if timer.active(): timer.cancel() def _NH_SIPSessionDidRenegotiateStreams(self, notification): session = notification.sender streams = notification.data.streams if notification.data.action == 'add': try: chat_stream = (stream for stream in streams if stream.type == 'chat').next() except StopIteration: pass else: notification.center.add_observer(self, sender=chat_stream) log.msg(u'%s has added chat to %s' % (format_identity(session.remote_identity), self.uri)) self.dispatch_server_message('%s has added chat' % format_identity(session.remote_identity), exclude=session) try: audio_stream = (stream for stream in streams if stream.type == 'audio').next() except StopIteration: pass else: notification.center.add_observer(self, sender=audio_stream) log.msg(u'Audio stream using %s/%sHz (%s), end-points: %s:%d <-> %s:%d' % (audio_stream.codec, audio_stream.sample_rate, 'encrypted' if audio_stream.srtp_active else 'unencrypted', audio_stream.local_rtp_address, audio_stream.local_rtp_port, audio_stream.remote_rtp_address, audio_stream.remote_rtp_port)) log.msg(u'%s has added audio to %s' % (format_identity(session.remote_identity), self.uri)) self.dispatch_server_message('%s has added audio' % format_identity(session.remote_identity), exclude=session) welcome_handler = WelcomeHandler(self, session) welcome_handler.start(welcome_prompt=False) elif notification.data.action == 'remove': try: chat_stream = (stream for stream in streams if stream.type == 'chat').next() except StopIteration: pass else: notification.center.remove_observer(self, sender=chat_stream) log.msg(u'%s has removed chat from %s' % (format_identity(session.remote_identity), self.uri)) self.dispatch_server_message('%s has removed chat' % format_identity(session.remote_identity), exclude=session) try: audio_stream = (stream for stream in streams if stream.type == 'audio').next() 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() log.msg(u'%s has removed audio from %s' % (format_identity(session.remote_identity), self.uri)) self.dispatch_server_message('%s has removed audio' % format_identity(session.remote_identity), exclude=session) if not session.streams: log.msg(u'%s has removed all streams from %s, session will be terminated' % (format_identity(session.remote_identity), self.uri)) session.end() self.dispatch_conference_info() def _NH_SIPSessionTransferNewIncoming(self, notification): + log.msg(u'Call transfer request rejected, REFER messages must be sent out of band') notification.sender.reject_transfer(403) @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' % ResourcePath('sounds/moh').normalized) 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_play=False, 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() log.msg(u'Started playing music on hold') def pause(self): if self._player is not None and not self.paused: self.paused = True self._player.stop() log.msg(u'Stopped playing music on hold') def _play_next_file(self): self._player.filename = self.files.next() 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() def _NH_WavePlayerDidEnd(self, notification): if not self.paused: self._play_next_file() class InterruptWelcome(Exception): pass class WelcomeHandler(object): implements(IObserver) def __init__(self, room, session): self.room = room self.session = session self.procs = proc.RunningProcSet() @run_in_green_thread def start(self, welcome_prompt=True): notification_center = NotificationCenter() notification_center.add_observer(self, sender=self.session) self.procs.spawn(self.play_audio_welcome, welcome_prompt) self.procs.spawn(self.render_chat_welcome, welcome_prompt) self.procs.waitall() notification_center.remove_observer(self, sender=self.session) self.session = None self.room = 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 play_audio_welcome(self, welcome_prompt): try: audio_stream = (stream for stream in self.session.streams if stream.type == 'audio').next() except StopIteration: return try: player = WavePlayer(audio_stream.mixer, '', pause_time=1, initial_play=False, volume=50) audio_stream.bridge.add(player) if welcome_prompt: file = ResourcePath('sounds/co_welcome_conference.wav').normalized 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 = ResourcePath('sounds/co_only_one.wav').normalized self.play_file_in_player(player, file, 0.5) elif user_count == 1: file = ResourcePath('sounds/co_there_is.wav').normalized self.play_file_in_player(player, file, 0.5) elif user_count < 100: file = ResourcePath('sounds/co_there_are.wav').normalized self.play_file_in_player(player, file, 0.2) if user_count <= 24: file = ResourcePath('sounds/bi_%d.wav' % user_count).normalized self.play_file_in_player(player, file, 0.1) else: file = ResourcePath('sounds/bi_%d0.wav' % (user_count / 10)).normalized self.play_file_in_player(player, file, 0.1) file = ResourcePath('sounds/bi_%d.wav' % (user_count % 10)).normalized self.play_file_in_player(player, file, 0.1) file = ResourcePath('sounds/co_more_participants.wav').normalized self.play_file_in_player(player, file, 0) file = ResourcePath('sounds/connected_tone.wav').normalized self.play_file_in_player(player, file, 0.1) audio_stream.bridge.remove(player) except InterruptWelcome: try: audio_stream.bridge.remove(player) except ValueError: pass else: self.room.audio_conference.add(audio_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() def render_chat_welcome_prompt(self): txt = 'Welcome to the conference.' 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 in the room.' else: if user_count == 1: txt += ' There is one more participant in the room.' else: txt += ' There are %s more participants in the room.' % user_count return txt def render_chat_welcome(self, welcome_prompt): try: chat_stream = (stream for stream in self.session.streams if stream.type == 'chat').next() except StopIteration: return try: #welcome_prompt = self.render_chat_welcome_prompt() #chat_stream.send_message(welcome_prompt, 'text/plain', local_identity=self.room.identity, recipients=[self.room.identity]) remote_identity = CPIMIdentity.parse(format_identity(self.session.remote_identity, cpim_format=True)) for msg in database.get_last_messages(self.room.uri, ConferenceConfig.replay_history): recipient = CPIMIdentity.parse(msg.cpim_recipient) sender = CPIMIdentity.parse(msg.cpim_sender) if recipient.uri in (self.room.identity.uri, remote_identity.uri) or sender.uri == remote_identity.uri: chat_stream.send_message(msg.cpim_body, msg.cpim_content_type, local_identity=sender, recipients=[recipient], timestamp=msg.cpim_timestamp) except InterruptWelcome: pass def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPSessionWillEnd(self, notification): self.procs.killall(InterruptWelcome) 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 = (stream for stream in self.session.streams if stream.type == 'file-transfer' and stream.direction == 'recvonly').next() 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('Cannot write destination filename: %s' % 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' file = RoomFile(self.filename, remote_hash, self.file_selector.size, format_identity(self.session.remote_identity, cpim_format=True), 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) file = RoomFile(self.filename, self.file_selector.hash, self.file_selector.size, format_identity(self.session.remote_identity, cpim_format=True), 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 = (stream for stream in self.session.streams if stream.type == 'file-transfer').next() 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 = AccountManager().sylkserver_account if account.sip.outbound_proxy is not None: uri = SIPURI(host=account.sip.outbound_proxy.host, port=account.sip.outbound_proxy.port, parameters={'transport': account.sip.outbound_proxy.transport}) else: uri = SIPURI.new(self.destination) lookup = DNSLookup() try: routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait() except DNSLookupError: return notification_center = NotificationCenter() self.session = Session(account) self.stream = FileTransferStream(self.file.file_selector, 'sendonly') notification_center.add_observer(self, sender=self.session) notification_center.add_observer(self, sender=self.stream) subject = u'File uploaded by %s' % self.file.sender from_header = FromHeader(SIPURI.new(self.room_uri), u'Conference File Transfer') to_header = ToHeader(SIPURI.new(self.destination)) transport = routes[0].transport parameters = {} if transport=='udp' else {'transport': transport} contact_header = ContactHeader(SIPURI(user=self.room_uri.user, host=SIPConfig.local_ip.normalized, port=getattr(Engine(), '%s_port' % transport), parameters=parameters)) extra_headers = [] if ThorNodeConfig.enabled: extra_headers.append(Header('Thor-Scope', 'conference-invitation')) originator_uri = CPIMIdentity.parse(self.file.sender).uri extra_headers.append(Header('X-Originator-From', str(originator_uri))) self.session.connect(from_header, to_header, contact_header=contact_header, routes=routes, streams=[self.stream], is_focus=True, subject=subject, 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