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 _start_outgoing_sip_session(self, target_uri):
notification_center = NotificationCenter()
# self.xmpp_identity is our local identity
from_uri = self.xmpp_identity.uri.as_sip_uri()
del from_uri.parameters['gr'] # no GRUU in From header
contact_uri = self.xmpp_identity.uri.as_sip_uri()
contact_uri.parameters['gr'] = encode_resource(contact_uri.parameters['gr'].decode('utf-8'))
to_uri = target_uri.as_sip_uri()
lookup = DNSLookup()
settings = SIPSimpleSettings()
account = DefaultAccount()
if account.sip.outbound_proxy is not None:
uri = SIPURI(host=account.sip.outbound_proxy.host,
port=account.sip.outbound_proxy.port,
parameters={'transport': account.sip.outbound_proxy.transport})
else:
uri = to_uri
try:
routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait()
except DNSLookupError:
log.warning('DNS lookup error while looking for %s proxy' % uri)
notification_center.post_notification('ChatSessionDidFail', sender=self, data=NotificationData(reason='DNS lookup error'))
return
self.msrp_stream = MediaStreamRegistry.get('chat')()
route = routes.pop(0)
from_header = FromHeader(from_uri)
to_header = ToHeader(to_uri)
contact_header = ContactHeader(contact_uri)
self.sip_session = Session(account)
notification_center.add_observer(self, sender=self.sip_session)
notification_center.add_observer(self, sender=self.msrp_stream)
self.sip_session.connect(from_header, to_header, contact_header=contact_header, route=route, streams=[self.msrp_stream])
def _start_outgoing_sip_session(self, streams):
notification_center = NotificationCenter()
# self.xmpp_identity is our local identity on the SIP side
from_uri = self.xmpp_identity.uri.as_sip_uri()
from_uri.parameters.pop('gr', None) # no GRUU in From header
to_uri = self.sip_identity.uri.as_sip_uri()
to_uri.parameters.pop('gr', None) # no GRUU in To header
# TODO: need to fix GRUU in the proxy
#contact_uri = self.xmpp_identity.uri.as_sip_uri()
#contact_uri.parameters['gr'] = encode_resource(contact_uri.parameters['gr'].decode('utf-8'))
lookup = DNSLookup()
settings = SIPSimpleSettings()
account = DefaultAccount()
if account.sip.outbound_proxy is not None:
uri = SIPURI(host=account.sip.outbound_proxy.host,
port=account.sip.outbound_proxy.port,
parameters={'transport': account.sip.outbound_proxy.transport})
else:
uri = to_uri
try:
routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait()
except DNSLookupError:
log.warning('DNS lookup error while looking for %s proxy' % uri)
notification_center.post_notification('MedialSessionHandlerDidFail', sender=self, data=NotificationData(reason='DNS lookup error'))
return
route = routes.pop(0)
from_header = FromHeader(from_uri)
to_header = ToHeader(to_uri)
self.sip_session = Session(account)
notification_center.add_observer(self, sender=self.sip_session)
self.sip_session.connect(from_header, to_header, route=route, streams=streams)
def __init__(self, protocol):
self.account = DefaultAccount()
self._protocol = protocol
self._id = None
self._local_identity = None
self._remote_identity = None
self._local_jid = None
self._remote_jid = None
self._channel = coros.queue()
self._current_operation = None
self._proc = proc.spawn(self._run)
self._timer = None
self._sdp_negotiator = None
self._pending_transport_info_stanzas = []
self.direction = None
self.state = None
self.streams = None
self.proposed_streams = None
self.start_time = None
self.end_time = None
self.on_hold = False
self.local_focus = False
self.candidates = set()
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):
if self.use_cpim:
additional_headers = []
payload = CPIMPayload(
self.body.encode('utf-8'),
self.content_type,
charset='utf-8',
sender=ChatIdentity(self.from_uri, None),
recipients=[ChatIdentity(self.to_uri, None)],
additional_headers=additional_headers)
payload, content_type = payload.encode()
else:
content_type = self.content_type
payload = self.body.encode('utf-8')
request = SIPMessageRequest(from_header, to_header,
route_header, content_type,
payload)
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)
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)
def _NH_DNSLookupDidSucceed(self, notification):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=notification.sender)
account = DefaultAccount()
conference_application = ConferenceApplication()
try:
room = conference_application.get_room(self.room_uri)
except RoomNotFoundError:
log.info('Room %s - failed to add %s' %
(self.room_uri_str, self.refer_to_uri))
self._refer_request.end(500)
return
active_media = set(room.active_media).intersection(('audio', 'chat'))
if not active_media:
log.info('Room %s - failed to add %s' %
(self.room_uri_str, self.refer_to_uri))
self._refer_request.end(500)
return
for stream_type in active_media:
self.streams.append(MediaStreamRegistry.get(stream_type)())
self.session = Session(account)
notification_center.add_observer(self, sender=self.session)
original_from_header = self._refer_headers.get('From')
if original_from_header.display_name:
original_identity = "%s <%s@%s>" % (
original_from_header.display_name,
original_from_header.uri.user, original_from_header.uri.host)
else:
original_identity = "%s@%s" % (original_from_header.uri.user,
original_from_header.uri.host)
from_header = FromHeader(SIPURI.new(self.room_uri), u'Conference Call')
to_header = ToHeader(self.refer_to_uri)
extra_headers = []
if self._refer_headers.get('Referred-By', None) is not None:
extra_headers.append(
Header.new(self._refer_headers.get('Referred-By')))
else:
extra_headers.append(
Header('Referred-By', str(original_from_header.uri)))
if ThorNodeConfig.enabled:
extra_headers.append(Header('Thor-Scope', 'conference-invitation'))
extra_headers.append(
Header('X-Originator-From', str(original_from_header.uri)))
extra_headers.append(
SubjectHeader(u'Join conference request from %s' %
original_identity))
route = notification.data.result[0]
self.session.connect(from_header,
to_header,
route=route,
streams=self.streams,
is_focus=True,
extra_headers=extra_headers)
def __init__(self,
service='sipfocus',
name='SylkServer',
uri_user=None,
is_focus=True):
self.account = DefaultAccount()
self.service = service
self.name = name
self.uri_user = uri_user
self.is_focus = is_focus
self.id = str(uuid.uuid4())
self._stopped = True
self._files = []
self._command_channel = coros.queue()
self._select_proc = None
self._register_timer = None
self._update_timer = None
self._lock = Lock()
self.__dict__['presence_state'] = None
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 as e:
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 as 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 as 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 as 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 _initialize_subsystems(self):
notification_center = NotificationCenter()
with self._lock:
stop_pending = self._stop_pending
if stop_pending:
self.state = 'stopping'
if stop_pending:
notification_center.post_notification('SIPApplicationWillEnd', sender=self)
reactor.stop()
return
account_manager = AccountManager()
dns_manager = DNSManager()
session_manager = SessionManager()
settings = SIPSimpleSettings()
# Initialize default account
default_account = DefaultAccount()
account_manager.default_account = default_account
# initialize TLS
self._initialize_tls()
# initialize PJSIP internal resolver
self.engine.set_nameservers(['8.8.8.8'])
# initialize audio objects
voice_mixer = AudioMixer(None, None, settings.audio.sample_rate, 0, 9999)
self.voice_audio_device = AudioDevice(voice_mixer)
self.voice_audio_bridge = RootAudioBridge(voice_mixer)
self.voice_audio_bridge.add(self.voice_audio_device)
# initialize video objects
self.video_device = VideoDevice(u'Colorbar generator', settings.video.resolution, settings.video.framerate)
# initialize instance id
settings.instance_id = uuid4().urn
settings.save()
# initialize ZRTP cache
makedirs(ServerConfig.spool_dir.normalized)
self.engine.zrtp_cache = os.path.join(ServerConfig.spool_dir.normalized, 'zrtp.db')
# initialize middleware components
dns_manager.start()
account_manager.start()
session_manager.start()
notification_center.add_observer(self, name='CFGSettingsObjectDidChange')
self.state = 'started'
notification_center.post_notification('SIPApplicationDidStart', sender=self)
# start SylkServer components
self.web_server = WebServer()
self.web_server.start()
self.request_handler = IncomingRequestHandler()
self.request_handler.start()
if ThorNodeConfig.enabled:
from sylk.interfaces.sipthor import ConferenceNode
self.thor_interface = ConferenceNode()
thor_roles = []
if 'conference' in self.request_handler.application_registry:
thor_roles.append('conference_server')
if 'xmppgateway' in self.request_handler.application_registry:
thor_roles.append('xmpp_gateway')
if 'webrtcgateway' in self.request_handler.application_registry:
thor_roles.append('webrtc_gateway')
self.thor_interface.start(thor_roles)
def _sip_subscription_handler(self, command):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
account = DefaultAccount()
refresh_interval = getattr(command, 'refresh_interval', None) or account.sip.subscribe_interval
try:
# Lookup routes
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(host=self.sip_identity.uri.as_sip_uri().host)
lookup = DNSLookup()
try:
routes = lookup.lookup_sip_proxy(uri, settings.sip.transport_list).wait()
except DNSLookupError, e:
timeout = random.uniform(15, 30)
raise SubscriptionError(error='DNS lookup failed: %s' % e, timeout=timeout)
timeout = time() + 30
for route in routes:
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)
subscription_uri = self.sip_identity.uri.as_sip_uri()
subscription = Subscription(subscription_uri, FromHeader(self.xmpp_identity.uri.as_sip_uri()),
ToHeader(subscription_uri),
ContactHeader(contact_uri),
'presence',
RouteHeader(route.uri),
refresh=refresh_interval)
notification_center.add_observer(self, sender=subscription)
try:
subscription.subscribe(timeout=limit(remaining_time, min=1, max=5))
except SIPCoreError:
notification_center.remove_observer(self, sender=subscription)
raise SubscriptionError(error='Internal error', timeout=5)
self._sip_subscription = subscription
try:
while True:
notification = self._data_channel.wait()
if notification.sender is subscription and notification.name == 'SIPSubscriptionDidStart':
break
except SIPSubscriptionDidFail, e:
notification_center.remove_observer(self, sender=subscription)
self._sip_subscription = None
if e.data.code == 407:
# Authentication failed, so retry the subscription in some time
raise SubscriptionError(error='Authentication failed', timeout=random.uniform(60, 120))
elif e.data.code == 403:
# Forbidden
raise SubscriptionError(error='Forbidden', timeout=None, fatal=True)
elif e.data.code == 423:
# Get the value of the Min-Expires header
if e.data.min_expires is not None and e.data.min_expires > refresh_interval:
interval = e.data.min_expires
else:
interval = None
raise SubscriptionError(error='Interval too short', timeout=random.uniform(60, 120), refresh_interval=interval)
elif e.data.code in (405, 406, 489):
raise SubscriptionError(error='Method or event not supported', timeout=None, fatal=True)
elif e.data.code == 1400:
raise SubscriptionError(error=e.data.reason, timeout=None, fatal=True)
else:
# Otherwise just try the next route
continue
else:
self.subscribed = True
command.signal()
break
def _sip_subscription_handler(self, command):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
account = DefaultAccount()
refresh_interval = getattr(command, 'refresh_interval',
None) or account.sip.subscribe_interval
try:
# Lookup routes
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(host=self.sip_identity.uri.as_sip_uri().host)
lookup = DNSLookup()
try:
routes = lookup.lookup_sip_proxy(
uri, settings.sip.transport_list).wait()
except DNSLookupError as e:
timeout = random.uniform(15, 30)
raise SubscriptionError(error='DNS lookup failed: %s' % e,
timeout=timeout)
timeout = time() + 30
for route in routes:
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)
subscription_uri = self.sip_identity.uri.as_sip_uri()
subscription = Subscription(
subscription_uri,
FromHeader(self.xmpp_identity.uri.as_sip_uri()),
ToHeader(subscription_uri),
ContactHeader(contact_uri),
'presence',
RouteHeader(route.uri),
refresh=refresh_interval)
notification_center.add_observer(self, sender=subscription)
try:
subscription.subscribe(
timeout=limit(remaining_time, min=1, max=5))
except SIPCoreError:
notification_center.remove_observer(
self, sender=subscription)
raise SubscriptionError(error='Internal error',
timeout=5)
self._sip_subscription = subscription
try:
while True:
notification = self._data_channel.wait()
if notification.sender is subscription and notification.name == 'SIPSubscriptionDidStart':
break
except SIPSubscriptionDidFail as e:
notification_center.remove_observer(
self, sender=subscription)
self._sip_subscription = None
if e.data.code == 407:
# Authentication failed, so retry the subscription in some time
raise SubscriptionError(
error='Authentication failed',
timeout=random.uniform(60, 120))
elif e.data.code == 403:
# Forbidden
raise SubscriptionError(error='Forbidden',
timeout=None,
fatal=True)
elif e.data.code == 423:
# Get the value of the Min-Expires header
if e.data.min_expires is not None and e.data.min_expires > refresh_interval:
interval = e.data.min_expires
else:
interval = None
raise SubscriptionError(error='Interval too short',
timeout=random.uniform(
60, 120),
refresh_interval=interval)
elif e.data.code in (405, 406, 489):
raise SubscriptionError(
error='Method or event not supported',
timeout=None,
fatal=True)
elif e.data.code == 1400:
raise SubscriptionError(error=e.data.reason,
timeout=None,
fatal=True)
else:
# Otherwise just try the next route
continue
else:
self.subscribed = True
command.signal()
break
else:
# There are no more routes to try, give up
raise SubscriptionError(error='No more routes to try',
timeout=None,
fatal=True)
# At this point it is subscribed. Handle notifications and ending/failures.
try:
while True:
notification = self._data_channel.wait()
if notification.sender is not self._sip_subscription:
continue
if self._xmpp_subscription is None:
continue
if notification.name == 'SIPSubscriptionGotNotify':
if notification.data.event == 'presence':
subscription_state = notification.data.headers.get(
'Subscription-State').state
if subscription_state == 'active' and self._xmpp_subscription.state != 'active':
self._xmpp_subscription.accept()
elif subscription_state == 'pending' and self._xmpp_subscription.state == 'active':
# The state went from active to pending, hide the presence state?
pass
if notification.data.body:
if XMPPGatewayConfig.log_presence:
log.info(
'SIP NOTIFY from %s to %s' %
(format_uri(self.sip_identity.uri,
'sip'),
format_uri(self.xmpp_identity.uri,
'xmpp')))
self._process_pidf(notification.data.body)
elif notification.name == 'SIPSubscriptionDidEnd':
break
except SIPSubscriptionDidFail as e:
if e.data.code == 0 and e.data.reason == 'rejected':
self._xmpp_subscription.reject()
else:
self._command_channel.send(Command('subscribe'))
notification_center.remove_observer(self,
sender=self._sip_subscription)
except InterruptSubscription as e:
if not self.subscribed:
command.signal(e)
if self._sip_subscription is not None:
notification_center.remove_observer(
self, sender=self._sip_subscription)
try:
self._sip_subscription.end(timeout=2)
except SIPCoreError:
pass
except TerminateSubscription as e:
if not self.subscribed:
command.signal(e)
if self._sip_subscription is not None:
try:
self._sip_subscription.end(timeout=2)
except SIPCoreError:
pass
else:
try:
while True:
notification = self._data_channel.wait()
if notification.sender is self._sip_subscription and notification.name == 'SIPSubscriptionDidEnd':
break
except SIPSubscriptionDidFail:
pass
finally:
notification_center.remove_observer(
self, sender=self._sip_subscription)
except SubscriptionError as e:
if not e.fatal:
self._sip_subscription_timer = reactor.callLater(
e.timeout, self._command_channel.send,
Command('subscribe',
command.event,
refresh_interval=e.refresh_interval))
finally:
self.subscribed = False
self._sip_subscription = None
self._sip_subscription_proc = None
reactor.callLater(0, self.end)
