def start(self):
notification_center = NotificationCenter()
self._xmpp_subscription = XMPPIncomingSubscription(local_identity=self.sip_identity, remote_identity=self.xmpp_identity)
notification_center.add_observer(self, sender=self._xmpp_subscription)
self._xmpp_subscription.start()
self._command_proc = proc.spawn(self._run)
self._subscribe_sip()
notification_center.post_notification('X2SPresenceHandlerDidStart', sender=self)
def start(self):
notification_center = NotificationCenter()
self._xmpp_subscription = XMPPIncomingSubscription(local_identity=self.sip_identity, remote_identity=self.xmpp_identity)
notification_center.add_observer(self, sender=self._xmpp_subscription)
self._xmpp_subscription.start()
self._command_proc = proc.spawn(self._run)
self._subscribe_sip()
notification_center.post_notification('X2SPresenceHandlerDidStart', sender=self)
class X2SPresenceHandler(object):
implements(IObserver)
sip_identity = WriteOnceAttribute()
xmpp_identity = WriteOnceAttribute()
def __init__(self, sip_identity, xmpp_identity):
self.ended = False
self.sip_identity = sip_identity
self.xmpp_identity = xmpp_identity
self.subscribed = False
self._command_proc = None
self._command_channel = coros.queue()
self._data_channel = coros.queue()
self._sip_subscription = None
self._sip_subscription_proc = None
self._sip_subscription_timer = None
self._xmpp_subscription = None
def start(self):
notification_center = NotificationCenter()
self._xmpp_subscription = XMPPIncomingSubscription(
local_identity=self.sip_identity, remote_identity=self.xmpp_identity
)
notification_center.add_observer(self, sender=self._xmpp_subscription)
self._xmpp_subscription.start()
self._command_proc = proc.spawn(self._run)
self._subscribe_sip()
notification_center.post_notification("X2SPresenceHandlerDidStart", sender=self)
def end(self):
if self.ended:
return
notification_center = NotificationCenter()
if self._xmpp_subscription is not None:
notification_center.remove_observer(self, sender=self._xmpp_subscription)
self._xmpp_subscription.end()
self._xmpp_subscription = None
if self._sip_subscription:
self._unsubscribe_sip()
self.ended = True
notification_center.post_notification("X2SPresenceHandlerDidEnd", sender=self)
@run_in_green_thread
def _subscribe_sip(self):
command = Command("subscribe")
self._command_channel.send(command)
@run_in_green_thread
def _unsubscribe_sip(self):
command = Command("unsubscribe")
self._command_channel.send(command)
command.wait()
self._command_proc.kill()
self._command_proc = None
def _run(self):
while True:
command = self._command_channel.wait()
handler = getattr(self, "_CH_%s" % command.name)
handler(command)
def _CH_subscribe(self, command):
if self._sip_subscription_timer is not None and self._sip_subscription_timer.active():
self._sip_subscription_timer.cancel()
self._sip_subscription_timer = None
if self._sip_subscription_proc is not None:
subscription_proc = self._sip_subscription_proc
subscription_proc.kill(InterruptSubscription)
subscription_proc.wait()
self._sip_subscription_proc = proc.spawn(self._sip_subscription_handler, command)
def _CH_unsubscribe(self, command):
# Cancel any timer which would restart the subscription process
if self._sip_subscription_timer is not None and self._sip_subscription_timer.active():
self._sip_subscription_timer.cancel()
self._sip_subscription_timer = None
if self._sip_subscription_proc is not None:
subscription_proc = self._sip_subscription_proc
subscription_proc.kill(TerminateSubscription)
subscription_proc.wait()
self._sip_subscription_proc = None
command.signal()
def _process_pidf(self, body):
try:
pidf_doc = pidf.PIDF.parse(body)
except ParserError, e:
log.warn("Error parsing PIDF document: %s" % e)
return
# Build XML stanzas out of PIDF documents
try:
person = next(p for p in pidf_doc.persons)
except StopIteration:
person = None
for service in pidf_doc.services:
sip_contact = self.sip_identity.uri.as_sip_uri()
if service.device_info is not None:
sip_contact.parameters["gr"] = "urn:uuid:%s" % service.device_info.id
else:
sip_contact.parameters["gr"] = service.id
sender = Identity(FrozenURI.parse(sip_contact))
if service.status.extended is not None:
available = service.status.extended != "offline"
else:
available = service.status.basic == "open"
stanza = AvailabilityPresence(sender, self.xmpp_identity, available)
for note in service.notes:
stanza.statuses[note.lang] = note
if service.status.extended is not None:
if service.status.extended == "away":
stanza.show = "away"
elif service.status.extended == "busy":
stanza.show = "dnd"
elif person is not None and person.activities is not None:
activities = set(list(person.activities))
if "away" in activities:
stanza.show = "away"
elif set(("holiday", "vacation")).intersection(activities):
stanza.show = "xa"
elif "busy" in activities:
stanza.show = "dnd"
self._xmpp_subscription.send_presence(stanza)
class X2SPresenceHandler(object):
implements(IObserver)
sip_identity = WriteOnceAttribute()
xmpp_identity = WriteOnceAttribute()
def __init__(self, sip_identity, xmpp_identity):
self.ended = False
self.sip_identity = sip_identity
self.xmpp_identity = xmpp_identity
self.subscribed = False
self._command_proc = None
self._command_channel = coros.queue()
self._data_channel = coros.queue()
self._sip_subscription = None
self._sip_subscription_proc = None
self._sip_subscription_timer = None
self._xmpp_subscription = None
def start(self):
notification_center = NotificationCenter()
self._xmpp_subscription = XMPPIncomingSubscription(local_identity=self.sip_identity, remote_identity=self.xmpp_identity)
notification_center.add_observer(self, sender=self._xmpp_subscription)
self._xmpp_subscription.start()
self._command_proc = proc.spawn(self._run)
self._subscribe_sip()
notification_center.post_notification('X2SPresenceHandlerDidStart', sender=self)
def end(self):
if self.ended:
return
notification_center = NotificationCenter()
if self._xmpp_subscription is not None:
notification_center.remove_observer(self, sender=self._xmpp_subscription)
self._xmpp_subscription.end()
self._xmpp_subscription = None
if self._sip_subscription:
self._unsubscribe_sip()
self.ended = True
notification_center.post_notification('X2SPresenceHandlerDidEnd', sender=self)
@run_in_green_thread
def _subscribe_sip(self):
command = Command('subscribe')
self._command_channel.send(command)
@run_in_green_thread
def _unsubscribe_sip(self):
command = Command('unsubscribe')
self._command_channel.send(command)
command.wait()
self._command_proc.kill()
self._command_proc = None
def _run(self):
while True:
command = self._command_channel.wait()
handler = getattr(self, '_CH_%s' % command.name)
handler(command)
def _CH_subscribe(self, command):
if self._sip_subscription_timer is not None and self._sip_subscription_timer.active():
self._sip_subscription_timer.cancel()
self._sip_subscription_timer = None
if self._sip_subscription_proc is not None:
subscription_proc = self._sip_subscription_proc
subscription_proc.kill(InterruptSubscription)
subscription_proc.wait()
self._sip_subscription_proc = proc.spawn(self._sip_subscription_handler, command)
def _CH_unsubscribe(self, command):
# Cancel any timer which would restart the subscription process
if self._sip_subscription_timer is not None and self._sip_subscription_timer.active():
self._sip_subscription_timer.cancel()
self._sip_subscription_timer = None
if self._sip_subscription_proc is not None:
subscription_proc = self._sip_subscription_proc
subscription_proc.kill(TerminateSubscription)
subscription_proc.wait()
self._sip_subscription_proc = None
command.signal()
def _process_pidf(self, body):
try:
pidf_doc = pidf.PIDF.parse(body)
except ParserError, e:
log.warn('Error parsing PIDF document: %s' % e)
return
# Build XML stanzas out of PIDF documents
try:
person = next(p for p in pidf_doc.persons)
except StopIteration:
person = None
for service in pidf_doc.services:
sip_contact = self.sip_identity.uri.as_sip_uri()
if service.device_info is not None:
sip_contact.parameters['gr'] = 'urn:uuid:%s' % service.device_info.id
else:
sip_contact.parameters['gr'] = service.id
sender = Identity(FrozenURI.parse(sip_contact))
if service.status.extended is not None:
available = service.status.extended != 'offline'
else:
available = service.status.basic == 'open'
stanza = AvailabilityPresence(sender, self.xmpp_identity, available)
for note in service.notes:
stanza.statuses[note.lang] = note
if service.status.extended is not None:
if service.status.extended == 'away':
stanza.show = 'away'
elif service.status.extended == 'busy':
stanza.show = 'dnd'
elif person is not None and person.activities is not None:
activities = set(list(person.activities))
if 'away' in activities:
stanza.show = 'away'
elif {'holiday', 'vacation'}.intersection(activities):
stanza.show = 'xa'
elif 'busy' in activities:
stanza.show = 'dnd'
self._xmpp_subscription.send_presence(stanza)
class X2SPresenceHandler(object):
implements(IObserver)
sip_identity = WriteOnceAttribute()
xmpp_identity = WriteOnceAttribute()
def __init__(self, sip_identity, xmpp_identity):
self.ended = False
self.sip_identity = sip_identity
self.xmpp_identity = xmpp_identity
self.subscribed = False
self._command_proc = None
self._command_channel = coros.queue()
self._data_channel = coros.queue()
self._sip_subscription = None
self._sip_subscription_proc = None
self._sip_subscription_timer = None
self._xmpp_subscription = None
def start(self):
notification_center = NotificationCenter()
self._xmpp_subscription = XMPPIncomingSubscription(
local_identity=self.sip_identity,
remote_identity=self.xmpp_identity)
notification_center.add_observer(self, sender=self._xmpp_subscription)
self._xmpp_subscription.start()
self._command_proc = proc.spawn(self._run)
self._subscribe_sip()
notification_center.post_notification('X2SPresenceHandlerDidStart',
sender=self)
def end(self):
if self.ended:
return
notification_center = NotificationCenter()
if self._xmpp_subscription is not None:
notification_center.remove_observer(self,
sender=self._xmpp_subscription)
self._xmpp_subscription.end()
self._xmpp_subscription = None
if self._sip_subscription:
self._unsubscribe_sip()
self.ended = True
notification_center.post_notification('X2SPresenceHandlerDidEnd',
sender=self)
@run_in_green_thread
def _subscribe_sip(self):
command = Command('subscribe')
self._command_channel.send(command)
@run_in_green_thread
def _unsubscribe_sip(self):
command = Command('unsubscribe')
self._command_channel.send(command)
command.wait()
self._command_proc.kill()
self._command_proc = None
def _run(self):
while True:
command = self._command_channel.wait()
handler = getattr(self, '_CH_%s' % command.name)
handler(command)
def _CH_subscribe(self, command):
if self._sip_subscription_timer is not None and self._sip_subscription_timer.active(
):
self._sip_subscription_timer.cancel()
self._sip_subscription_timer = None
if self._sip_subscription_proc is not None:
subscription_proc = self._sip_subscription_proc
subscription_proc.kill(InterruptSubscription)
subscription_proc.wait()
self._sip_subscription_proc = proc.spawn(
self._sip_subscription_handler, command)
def _CH_unsubscribe(self, command):
# Cancel any timer which would restart the subscription process
if self._sip_subscription_timer is not None and self._sip_subscription_timer.active(
):
self._sip_subscription_timer.cancel()
self._sip_subscription_timer = None
if self._sip_subscription_proc is not None:
subscription_proc = self._sip_subscription_proc
subscription_proc.kill(TerminateSubscription)
subscription_proc.wait()
self._sip_subscription_proc = None
command.signal()
def _process_pidf(self, body):
try:
pidf_doc = pidf.PIDF.parse(body)
except ParserError as e:
log.warn('Error parsing PIDF document: %s' % e)
return
# Build XML stanzas out of PIDF documents
try:
person = next(p for p in pidf_doc.persons)
except StopIteration:
person = None
for service in pidf_doc.services:
sip_contact = self.sip_identity.uri.as_sip_uri()
if service.device_info is not None:
sip_contact.parameters[
'gr'] = 'urn:uuid:%s' % service.device_info.id
else:
sip_contact.parameters['gr'] = service.id
sender = Identity(FrozenURI.parse(sip_contact))
if service.status.extended is not None:
available = service.status.extended != 'offline'
else:
available = service.status.basic == 'open'
stanza = AvailabilityPresence(sender, self.xmpp_identity,
available)
for note in service.notes:
stanza.statuses[note.lang] = note
if service.status.extended is not None:
if service.status.extended == 'away':
stanza.show = 'away'
elif service.status.extended == 'busy':
stanza.show = 'dnd'
elif person is not None and person.activities is not None:
activities = set(list(person.activities))
if 'away' in activities:
stanza.show = 'away'
elif {'holiday', 'vacation'}.intersection(activities):
stanza.show = 'xa'
elif 'busy' in activities:
stanza.show = 'dnd'
self._xmpp_subscription.send_presence(stanza)
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)
@run_in_twisted_thread
def handle_notification(self, notification):
handler = getattr(self, '_NH_%s' % notification.name, Null)
handler(notification)
def _NH_SIPSubscriptionDidStart(self, notification):
self._data_channel.send(notification)
def _NH_SIPSubscriptionDidEnd(self, notification):
self._data_channel.send(notification)
def _NH_SIPSubscriptionDidFail(self, notification):
self._data_channel.send_exception(
SIPSubscriptionDidFail(notification.data))
def _NH_SIPSubscriptionGotNotify(self, notification):
self._data_channel.send(notification)
def _NH_XMPPIncomingSubscriptionGotUnsubscribe(self, notification):
self.end()
def _NH_XMPPIncomingSubscriptionGotSubscribe(self, notification):
if self._sip_subscription is not None and self._sip_subscription.state.lower(
) == 'active':
self._xmpp_subscription.accept()
_NH_XMPPIncomingSubscriptionGotProbe = _NH_XMPPIncomingSubscriptionGotSubscribe
