def _NH_DNSLookupDidSucceed(self, notification):
# create subscriptions for everyone in the queue and register to get notifications from it
self._subscription_routes = deque(notification.data.result)
route = self._subscription_routes[0]
route_header = RouteHeader(route.uri)
for waitingsubscription in self.subscriptionqueue:
# Creates a subscription for the waiting subscription
newsubscription = Subscription(
waitingsubscription.uri,
FromHeader(self.account.uri, self.account.display_name),
waitingsubscription,
ContactHeader(self.account.contact[route]),
"presence",
route_header,
credentials=self.account.credentials,
refresh=self.account.sip.subscribe_interval)
# Sets up an event listener for this new subscription
notification_center = NotificationCenter()
notification_center.add_observer(self, sender=newsubscription)
# Starts the subscribe
newsubscription.subscribe(timeout=5)
# Adds this subscription to the active subscriptions list
self.subscriptions.append(newsubscription)
# Debug stuff
self.output.put("Started new subscription with " +
waitingsubscription.uri.user)
# Clears all of the waiting subscriptions
self.subscriptionqueue = []
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 _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 start(self):
notification_center = NotificationCenter()
self.greenlet = api.getcurrent()
settings = SIPSimpleSettings()
account = AccountManager().sylkserver_account
if account.sip.outbound_proxy is not None:
uri = SIPURI(
host=account.sip.outbound_proxy.host,
port=account.sip.outbound_proxy.port,
parameters={'transport': account.sip.outbound_proxy.transport})
else:
uri = self.destination_uri
lookup = DNSLookup()
try:
routes = lookup.lookup_sip_proxy(
uri, settings.sip.transport_list).wait()
except DNSLookupError:
notification_center.post_notification(
'OutgoingFileTransferHandlerDidFail', sender=self)
return
self.session = Session(account)
self.stream = FileTransferStream(self.file_selector, 'sendonly')
notification_center.add_observer(self, sender=self.session)
notification_center.add_observer(self, sender=self.stream)
from_header = FromHeader(self.sender_uri, u'SIPStache File Transfer')
to_header = ToHeader(self.destination_uri)
transport = routes[0].transport
parameters = {} if transport == 'udp' else {'transport': transport}
contact_header = ContactHeader(
SIPURI(user=self.sender_uri.user,
host=SIPConfig.local_ip.normalized,
port=getattr(Engine(), '%s_port' % transport),
parameters=parameters))
extra_headers = []
if ThorNodeConfig.enabled:
extra_headers.append(Header('Thor-Scope', 'sipstache-file'))
extra_headers.append(
Header('X-Originator-From', str(self.destination_uri)))
self.session.connect(from_header,
to_header,
contact_header=contact_header,
routes=routes,
streams=[self.stream],
is_focus=False,
extra_headers=extra_headers)
notification_center.post_notification(
'OutgoingFileTransferHandlerDidStart', sender=self)
def _CH_register(self, command):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
if self._registration_timer is not None and self._registration_timer.active(
):
self._registration_timer.cancel()
self._registration_timer = None
# Initialize the registration
if self._registration is None:
duration = command.refresh_interval or self.account.sip.register_interval
self._registration = Registration(
FromHeader(self.account.uri, self.account.display_name),
credentials=self.account.credentials,
duration=duration,
extra_headers=[Header('Supported', 'gruu')])
notification_center.add_observer(self, sender=self._registration)
notification_center.post_notification('SIPAccountWillRegister',
sender=self.account)
else:
notification_center.post_notification(
'SIPAccountRegistrationWillRefresh', sender=self.account)
try:
# Lookup routes
if self.account.sip.outbound_proxy is not None and self.account.sip.outbound_proxy.transport in settings.sip.transport_list:
uri = SIPURI(host=self.account.sip.outbound_proxy.host,
port=self.account.sip.outbound_proxy.port,
parameters={
'transport':
self.account.sip.outbound_proxy.transport
})
else:
uri = SIPURI(host=self.account.id.domain)
lookup = DNSLookup()
try:
routes = lookup.lookup_sip_proxy(
uri, settings.sip.transport_list).wait()
except DNSLookupError as e:
retry_after = random.uniform(self._dns_wait,
2 * self._dns_wait)
self._dns_wait = limit(2 * self._dns_wait, max=30)
raise RegistrationError('DNS lookup failed: %s' % e,
retry_after=retry_after)
else:
self._dns_wait = 1
# Register by trying each route in turn
register_timeout = time() + 30
for route in routes:
remaining_time = register_timeout - time()
if remaining_time > 0:
try:
contact_uri = self.account.contact[NoGRUU, route]
except KeyError:
continue
contact_header = ContactHeader(contact_uri)
contact_header.parameters[
'+sip.instance'] = '"<%s>"' % settings.instance_id
if self.account.nat_traversal.use_ice:
contact_header.parameters['+sip.ice'] = None
route_header = RouteHeader(route.uri)
try:
self._registration.register(contact_header,
route_header,
timeout=limit(
remaining_time,
min=1,
max=10))
except SIPCoreError:
raise RegistrationError('Internal error',
retry_after=5)
try:
while True:
notification = self._data_channel.wait()
if notification.name == 'SIPRegistrationDidSucceed':
break
if notification.name == 'SIPRegistrationDidEnd':
raise RegistrationError(
'Registration expired', retry_after=0
) # registration expired while we were trying to re-register
except SIPRegistrationDidFail as e:
notification_data = NotificationData(
code=e.data.code,
reason=e.data.reason,
registration=self._registration,
registrar=route)
notification_center.post_notification(
'SIPAccountRegistrationGotAnswer',
sender=self.account,
data=notification_data)
if e.data.code == 401:
# Authentication failed, so retry the registration in some time
raise RegistrationError('Authentication failed',
retry_after=random.uniform(
60, 120))
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 > self.account.sip.register_interval:
refresh_interval = e.data.min_expires
else:
refresh_interval = None
raise RegistrationError(
'Interval too short',
retry_after=random.uniform(60, 120),
refresh_interval=refresh_interval)
else:
# Otherwise just try the next route
continue
else:
notification_data = NotificationData(
code=notification.data.code,
reason=notification.data.reason,
registration=self._registration,
registrar=route)
notification_center.post_notification(
'SIPAccountRegistrationGotAnswer',
sender=self.account,
data=notification_data)
self.registered = True
# Save GRUU
try:
header = next(
header for header in
notification.data.contact_header_list
if header.parameters.get('+sip.instance', '').
strip('"<>') == settings.instance_id)
except StopIteration:
self.account.contact.public_gruu = None
self.account.contact.temporary_gruu = None
else:
public_gruu = header.parameters.get(
'pub-gruu', None)
temporary_gruu = header.parameters.get(
'temp-gruu', None)
try:
self.account.contact.public_gruu = SIPURI.parse(
public_gruu.strip('"'))
except (AttributeError, SIPCoreError):
self.account.contact.public_gruu = None
try:
self.account.contact.temporary_gruu = SIPURI.parse(
temporary_gruu.strip('"'))
except (AttributeError, SIPCoreError):
self.account.contact.temporary_gruu = None
notification_data = NotificationData(
contact_header=notification.data.contact_header,
contact_header_list=notification.data.
contact_header_list,
expires=notification.data.expires_in,
registrar=route)
notification_center.post_notification(
'SIPAccountRegistrationDidSucceed',
sender=self.account,
data=notification_data)
self._register_wait = 1
command.signal()
break
else:
# There are no more routes to try, reschedule the registration
retry_after = random.uniform(self._register_wait,
2 * self._register_wait)
self._register_wait = limit(self._register_wait * 2, max=30)
raise RegistrationError('No more routes to try',
retry_after=retry_after)
except RegistrationError as e:
self.registered = False
notification_center.remove_observer(self,
sender=self._registration)
notification_center.post_notification(
'SIPAccountRegistrationDidFail',
sender=self.account,
data=NotificationData(error=e.error,
retry_after=e.retry_after))
def register():
if self.active:
self._command_channel.send(
Command('register',
command.event,
refresh_interval=e.refresh_interval))
self._registration_timer = None
self._registration_timer = reactor.callLater(
e.retry_after, register)
self._registration = None
self.account.contact.public_gruu = None
self.account.contact.temporary_gruu = None
def _subscription_handler(self, command):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
subscription_uri = self.subscription_uri
refresh_interval = command.refresh_interval or self.account.sip.subscribe_interval
valid_transports = self.__transports__.intersection(
settings.sip.transport_list)
try:
if Host.default_ip is None:
raise SubscriptionError('No IP address', retry_after=60)
# Lookup routes
if self.account.sip.outbound_proxy is not None and self.account.sip.outbound_proxy.transport in valid_transports:
uri = SIPURI(host=self.account.sip.outbound_proxy.host,
port=self.account.sip.outbound_proxy.port,
parameters={
'transport':
self.account.sip.outbound_proxy.transport
})
elif self.account.sip.always_use_my_proxy:
uri = SIPURI(host=self.account.id.domain)
else:
uri = SIPURI(host=subscription_uri.domain)
lookup = DNSLookup()
try:
routes = lookup.lookup_sip_proxy(
uri, valid_transports,
tls_name=self.account.sip.tls_name).wait()
except DNSLookupError as e:
raise SubscriptionError('DNS lookup failed: %s' % e,
retry_after=random.uniform(15, 30))
subscription_uri = SIPURI(user=subscription_uri.username,
host=subscription_uri.domain)
content = self.content
timeout = time() + 30
for route in routes:
if Host.default_ip is None:
raise SubscriptionError('No IP address', retry_after=60)
remaining_time = timeout - time()
if remaining_time > 0:
try:
contact_uri = self.account.contact[NoGRUU, route]
except KeyError:
continue
subscription = Subscription(
subscription_uri,
FromHeader(self.account.uri,
self.account.display_name),
ToHeader(subscription_uri),
ContactHeader(contact_uri),
self.event.encode(),
RouteHeader(route.uri),
credentials=self.account.credentials,
refresh=refresh_interval)
notification_center.add_observer(self, sender=subscription)
try:
subscription.subscribe(
body=content.body,
content_type=content.type,
extra_headers=self.extra_headers,
timeout=limit(remaining_time, min=1, max=5))
except SIPCoreError:
notification_center.remove_observer(
self, sender=subscription)
raise SubscriptionError('Internal error',
retry_after=5)
self._subscription = subscription
try:
while True:
notification = self._data_channel.wait()
if notification.name == 'SIPSubscriptionDidStart':
break
except SIPSubscriptionDidFail as e:
notification_center.remove_observer(
self, sender=subscription)
self._subscription = None
if e.data.code == 407:
# Authentication failed, so retry the subscription in some time
raise SubscriptionError('Authentication failed',
retry_after=random.uniform(
60, 120))
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 > self.account.sip.subscribe_interval:
refresh_interval = e.data.min_expires
else:
refresh_interval = None
raise SubscriptionError(
'Interval too short',
retry_after=random.uniform(60, 120),
refresh_interval=refresh_interval)
elif e.data.code in (405, 406, 489):
raise SubscriptionError(
'Method or event not supported',
retry_after=3600)
elif e.data.code == 1400:
raise SubscriptionError(e.data.reason,
retry_after=3600)
else:
# Otherwise just try the next route
continue
else:
self.subscribed = True
command.signal()
break
else:
# There are no more routes to try, reschedule the subscription
raise SubscriptionError('No more routes to try',
retry_after=random.uniform(60, 180))
# At this point it is subscribed. Handle notifications and ending/failures.
notification_center.post_notification(self.__nickname__ +
'SubscriptionDidStart',
sender=self)
try:
while True:
notification = self._data_channel.wait()
if notification.name == 'SIPSubscriptionGotNotify':
notification_center.post_notification(
self.__nickname__ + 'SubscriptionGotNotify',
sender=self,
data=notification.data)
elif notification.name == 'SIPSubscriptionDidEnd':
notification_center.post_notification(
self.__nickname__ + 'SubscriptionDidEnd',
sender=self,
data=NotificationData(originator='remote'))
if self.active:
self._command_channel.send(Command('subscribe'))
break
except SIPSubscriptionDidFail:
notification_center.post_notification(self.__nickname__ +
'SubscriptionDidFail',
sender=self)
if self.active:
self._command_channel.send(Command('subscribe'))
notification_center.remove_observer(self,
sender=self._subscription)
except InterruptSubscription as e:
if not self.subscribed:
command.signal(e)
if self._subscription is not None:
notification_center.remove_observer(self,
sender=self._subscription)
try:
self._subscription.end(timeout=2)
except SIPCoreError:
pass
finally:
notification_center.post_notification(
self.__nickname__ + 'SubscriptionDidEnd',
sender=self,
data=NotificationData(originator='local'))
except TerminateSubscription as e:
if not self.subscribed:
command.signal(e)
if self._subscription is not None:
try:
self._subscription.end(timeout=2)
except SIPCoreError:
pass
else:
try:
while True:
notification = self._data_channel.wait()
if notification.name == 'SIPSubscriptionDidEnd':
break
except SIPSubscriptionDidFail:
pass
finally:
notification_center.remove_observer(
self, sender=self._subscription)
notification_center.post_notification(
self.__nickname__ + 'SubscriptionDidEnd',
sender=self,
data=NotificationData(originator='local'))
except SubscriptionError as e:
def subscribe(e):
if self.active:
self._command_channel.send(
Command('subscribe',
command.event,
refresh_interval=e.refresh_interval))
self._subscription_timer = None
self._subscription_timer = reactor.callLater(
e.retry_after, subscribe, e)
notification_center.post_notification(self.__nickname__ +
'SubscriptionDidFail',
sender=self)
finally:
self.subscribed = False
self._subscription = None
self._subscription_proc = None
def _subscription_handler(self, command):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
subscription_uri = self.subscription_uri
refresh_interval = command.refresh_interval or self.account.sip.subscribe_interval
valid_transports = self.__transports__.intersection(settings.sip.transport_list)
try:
# Lookup routes
if self.account.sip.outbound_proxy is not None and self.account.sip.outbound_proxy.transport in valid_transports:
uri = SIPURI(host=self.account.sip.outbound_proxy.host, port=self.account.sip.outbound_proxy.port, parameters={'transport': self.account.sip.outbound_proxy.transport})
elif self.account.sip.always_use_my_proxy:
uri = SIPURI(host=self.account.id.domain)
else:
uri = SIPURI(host=subscription_uri.domain)
lookup = DNSLookup()
try:
routes = lookup.lookup_sip_proxy(uri, valid_transports).wait()
except DNSLookupError, e:
raise SubscriptionError('DNS lookup failed: %s' % e, retry_after=random.uniform(15, 30))
subscription_uri = SIPURI(user=subscription_uri.username, host=subscription_uri.domain)
content = self.content
timeout = time() + 30
for route in routes:
remaining_time = timeout - time()
if remaining_time > 0:
try:
contact_uri = self.account.contact[NoGRUU, route]
except KeyError:
continue
subscription = Subscription(subscription_uri, FromHeader(self.account.uri, self.account.display_name),
ToHeader(subscription_uri),
ContactHeader(contact_uri),
self.event,
RouteHeader(route.uri),
credentials=self.account.credentials,
refresh=refresh_interval)
notification_center.add_observer(self, sender=subscription)
try:
subscription.subscribe(body=content.body, content_type=content.type, extra_headers=self.extra_headers, timeout=limit(remaining_time, min=1, max=5))
except SIPCoreError:
notification_center.remove_observer(self, sender=subscription)
raise SubscriptionError('Internal error', retry_after=5)
self._subscription = subscription
try:
while True:
notification = self._data_channel.wait()
if notification.name == 'SIPSubscriptionDidStart':
break
except SIPSubscriptionDidFail, e:
notification_center.remove_observer(self, sender=subscription)
self._subscription = None
if e.data.code == 407:
# Authentication failed, so retry the subscription in some time
raise SubscriptionError('Authentication failed', retry_after=random.uniform(60, 120))
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 > self.account.sip.subscribe_interval:
refresh_interval = e.data.min_expires
else:
refresh_interval = None
raise SubscriptionError('Interval too short', retry_after=random.uniform(60, 120), refresh_interval=refresh_interval)
elif e.data.code in (405, 406, 489):
raise SubscriptionError('Method or event not supported', retry_after=3600)
elif e.data.code == 1400:
raise SubscriptionError(e.data.reason, retry_after=3600)
else:
# Otherwise just try the next route
continue
else:
self.subscribed = True
command.signal()
break
self._dns_wait = limit(2 * self._dns_wait, max=30)
raise RegistrationError('DNS lookup failed: %s' % e,
retry_after=retry_after)
else:
self._dns_wait = 1
# Register by trying each route in turn
register_timeout = time() + 30
for route in routes:
remaining_time = register_timeout - time()
if remaining_time > 0:
try:
contact_uri = self.account.contact[NoGRUU, route]
except KeyError:
continue
contact_header = ContactHeader(contact_uri)
contact_header.parameters[
'+sip.instance'] = '"<%s>"' % settings.instance_id
if self.account.nat_traversal.use_ice:
contact_header.parameters['+sip.ice'] = None
route_header = RouteHeader(route.uri)
try:
self._registration.register(contact_header,
route_header,
timeout=limit(
remaining_time,
min=1,
max=10))
except SIPCoreError:
raise RegistrationError('Internal error',
retry_after=5)
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 _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)