[SIP Beyond VoIP] SIPBeyondVoIP Digest, Vol 105, Issue 1
Alexey Nikitenko
alexeynikitenko1927 at gmail.com
Fri Mar 15 01:25:12 CET 2019
I added a lines:
print(self.engine.incoming_requests)
self.engine.add_incoming_request('INFO')
print(self.engine.incoming_requests)
in the beginning of _NH_SIPApplicationDidStart method. As I can see, INFO
method was added in set of methods, but no SIPIncomingRequestGotRequest or
even SIPEngineLog notifications handled.
> Keep in mind this only works for single-transaction out-of-dialog
requests. In dialog requests will always be handled in dialog and will not
generate an IncomingRequest object even if the method matches the ones in
engine.incoming_requests
How can I realize: is my INFO request connected with some dialog?
There is sequence of requests in Wireshark:
=> Request: INVITE
<= Status: 401 Unathorized
=> ACK
=> Request: INVITE
<= Status: 100 Trying
<= Request: INFO
=> Status: 500 Unhandled by dialog usages
Invite requests were sent by session object and I have to handle incoming
INFO request.
пт, 15 мар. 2019 г. в 01:05, <sipbeyondvoip-request at lists.ag-projects.com>:
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> Today's Topics:
>
> 1. Problem with SIP Simple SDK notification handling
> (Alexey Nikitenko)
> 2. Re: Problem with SIP Simple SDK notification handling (Dan
> Pascu)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 14 Mar 2019 21:47:48 +1000
> From: Alexey Nikitenko <alexeynikitenko1927 at gmail.com>
> To: sipbeyondvoip at lists.ag-projects.com
> Subject: [SIP Beyond VoIP] Problem with SIP Simple SDK notification
> handling
> Message-ID:
> <
> CAESrG6QL6PQpSR2-wUn7FZMzWuUeXbWPJhAYH-DmxJOnqg-Eug at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> I try to handle notifications in my simple sip application. I can handle
> many notifications connected with session, application end engine, but I
> can't handle notifications, connected with incoming and outgoing low-level
> requests.
>
> There is incoming INFO messages is session, I can see in Wireshark, but it
> not handled with _NH_SIPIncomingRequestGotRequest.
>
> Full listing of class:
>
> class SimpleCallApplication(SIPApplication):
>
> def __init__(self, number, password, server_ip, server_port, logger):
> SIPApplication.__init__(self)
> self.logger = logger
> self.ended = Event()
> self.session = None
> self.uri = None
> self.player = None
> self._wave_file = None
> self.number = number
> self.password = password
> self.domain = '{}:{}'.format(server_ip, server_port)
> self.number_with_domain = '{}@{}'.format(number, self.domain)
> self.notification_center = NotificationCenter()
> self.notification_center.add_observer(self)
>
> def call(self, uri, filename):
> self.uri = uri
> self._wave_file = filename
> self.start(FileStorage('config'))
>
> @run_in_green_thread
> def _NH_SIPApplicationDidStart(self, notification):
>
> acc = None
> try:
> acc = AccountManager().get_account(self.number_with_domain)
> except KeyError:
> pass
> if acc is not None:
> self.account = acc
> else:
> self.account = Account(self.number_with_domain)
>
> self.account.__setstate__({'password': self.password})
> self.account.enabled = True
> self.account.save()
>
> to = ToHeader(SIPURI.parse(self.uri))
> settings = SIPSimpleSettings()
> settings.audio.input_device = None
> settings.audio.output_device = None
> settings.save()
> self.player = WavePlayer(SIPApplication.voice_audio_mixer, self._wave_file,
> loop_count=1)
> try:
> lookup = DNSLookup()
> routes = lookup.lookup_sip_proxy(to.uri, ['udp']).wait()
> except DNSLookupError, e:
> print 'DNS lookup failed: %s' % str(e)
> else:
> self.session = Session(self.account)
> stream = AudioStream()
>
> self.session.connect(to, routes, [stream])
>
> def _NH_SIPSessionGotRingIndication(self, notification):
> print 'Ringing!'
> session = notification.sender
> session.send(struct.pack('>BBBB', 1, 2, 3, 4))
>
> def _NH_SIPSessionDidStart(self, notification):
> print 'Session started!'
> session = notification.sender
> audio_stream = session.streams[0]
> audio_stream.bridge.add(self.player)
> self.player.play()
>
> def _NH_SIPSessionDidFail(self, notification):
> print 'Failed to connect'
> self.stop()
>
> def _NH_SIPSessionWillEnd(self, notification):
> session = notification.sender
> audio_stream = session.streams[0]
> self.player.stop()
> audio_stream.bridge.remove(self.player)
>
> def _NH_SIPSessionDidEnd(self, notification):
> print 'Session ended'
> self.stop()
>
> def _NH_SIPApplicationDidEnd(self, notification):
> self.ended.set()
>
> def _NH_AudioStreamGotDTMF(self, notification):
> print 'DTMF detected! {}'.format(notification.data.__dict__)
>
> def _NH_SIPIncomingRequestGotRequest(self, notification):
> print 'Incoming request'
>
> def _NH_SIPInvitationGotSDPUpdate(self, notification):
> print 'SDP update: {}'.format(notification.sender.state)
>
> def _NH_SIPRequestDidEnd(self, notification):
> print 'request ended'
>
> def _NH_SIPEngineLog(self, notification):
> print 'got a log!'
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> ------------------------------
>
> Message: 2
> Date: Thu, 14 Mar 2019 17:05:24 +0200
> From: Dan Pascu <dan at ag-projects.com>
> To: SIP Beyond VoIP <sipbeyondvoip at lists.ag-projects.com>
> Subject: Re: [SIP Beyond VoIP] Problem with SIP Simple SDK
> notification handling
> Message-ID: <5D006E0E-3F65-4BF9-ADFA-C9001D9CAD56 at ag-projects.com>
> Content-Type: text/plain; charset=us-ascii
>
>
> On 14 Mar 2019, at 13:47, Alexey Nikitenko wrote:
>
> > I try to handle notifications in my simple sip application. I can handle
> many notifications connected with session, application end engine, but I
> can't handle notifications, connected with incoming and outgoing low-level
> requests.
>
> By default no request is handled as a low level request. In order to have
> some requests handled as low level ones you need to indicate that by
> passing incoming_requests=[list_of_method_names] as an argument to
> Engine.start
>
> If you use SIPApplication, it will start the engine without passing any
> incoming_requests. In that case you need to call add_incoming_request on
> the Engine after you got SIPApplicationDidStart to add them on the fly at
> runtime.
>
> Keep in mind this only works for single-transaction out-of-dialog
> requests. In dialog requests will always be handled in dialog and will not
> generate an IncomingRequest object even if the method matches the ones in
> engine.incoming_requests
>
> In this particular example you'll have to add
>
> self.engine.add_incoming_request('INFO')
>
> in the beginning of _NH_SIPApplicationDidStart
>
> Check the documentation here:
>
>
> http://old.sipsimpleclient.org/projects/sipsimpleclient/wiki/SipCoreApiDocumentation#IncomingRequest
>
> >
> > There is incoming INFO messages is session, I can see in Wireshark, but
> it not handled with _NH_SIPIncomingRequestGotRequest.
> >
> > Full listing of class:
> >
> > class SimpleCallApplication(SIPApplication):
> >
> > def __init__(self, number, password, server_ip, server_port, logger):
> > SIPApplication.__init__(self)
> > self.logger = logger
> > self.ended = Event()
> > self.session = None
> > self.uri = None
> > self.player = None
> > self._wave_file = None
> > self.number = number
> > self.password = password
> > self.domain = '{}:{}'.format(server_ip, server_port)
> > self.number_with_domain = '{}@{}'.format(number, self.domain)
> > self.notification_center = NotificationCenter()
> > self.notification_center.add_observer(self)
> >
> > def call(self, uri, filename):
> > self.uri = uri
> > self._wave_file = filename
> > self.start(FileStorage('config'))
> >
> > @run_in_green_thread
> > def _NH_SIPApplicationDidStart(self, notification):
> >
> > acc = None
> > try:
> > acc = AccountManager().get_account(self.number_with_domain)
> > except KeyError:
> > pass
> > if acc is not None:
> > self.account = acc
> > else:
> > self.account = Account(self.number_with_domain)
> >
> > self.account.__setstate__({'password': self.password})
> > self.account.enabled = True
> > self.account.save()
> >
> > to = ToHeader(SIPURI.parse(self.uri))
> > settings = SIPSimpleSettings()
> > settings.audio.input_device = None
> > settings.audio.output_device = None
> > settings.save()
> > self.player = WavePlayer(SIPApplication.voice_audio_mixer,
> self._wave_file, loop_count=1)
> > try:
> > lookup = DNSLookup()
> > routes = lookup.lookup_sip_proxy(to.uri, ['udp']).wait()
> > except DNSLookupError, e:
> > print 'DNS lookup failed: %s' % str(e)
> > else:
> > self.session = Session(self.account)
> > stream = AudioStream()
> >
> > self.session.connect(to, routes, [stream])
> >
> > def _NH_SIPSessionGotRingIndication(self, notification):
> > print 'Ringing!'
> > session = notification.sender
> > session.send(struct.pack('>BBBB', 1, 2, 3, 4))
> >
> > def _NH_SIPSessionDidStart(self, notification):
> > print 'Session started!'
> > session = notification.sender
> > audio_stream = session.streams[0]
> > audio_stream.bridge.add(self.player)
> > self.player.play()
> >
> > def _NH_SIPSessionDidFail(self, notification):
> > print 'Failed to connect'
> > self.stop()
> >
> > def _NH_SIPSessionWillEnd(self, notification):
> > session = notification.sender
> > audio_stream = session.streams[0]
> > self.player.stop()
> > audio_stream.bridge.remove(self.player)
> >
> > def _NH_SIPSessionDidEnd(self, notification):
> > print 'Session ended'
> > self.stop()
> >
> > def _NH_SIPApplicationDidEnd(self, notification):
> > self.ended.set()
> >
> > def _NH_AudioStreamGotDTMF(self, notification):
> > print 'DTMF detected! {}'.format(notification.data.__dict__)
> >
> > def _NH_SIPIncomingRequestGotRequest(self, notification):
> > print 'Incoming request'
> >
> > def _NH_SIPInvitationGotSDPUpdate(self, notification):
> > print 'SDP update: {}'.format(notification.sender.state)
> >
> > def _NH_SIPRequestDidEnd(self, notification):
> > print 'request ended'
> >
> > def _NH_SIPEngineLog(self, notification):
> > print 'got a log!'
> > _______________________________________________
> > SIPBeyondVoIP mailing list
> > SIPBeyondVoIP at lists.ag-projects.com
> > http://lists.ag-projects.com/mailman/listinfo/sipbeyondvoip
>
>
> --
> Dan
>
>
>
>
>
>
> ------------------------------
>
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> SIPBeyondVoIP at lists.ag-projects.com
> http://lists.ag-projects.com/mailman/listinfo/sipbeyondvoip
>
>
> End of SIPBeyondVoIP Digest, Vol 105, Issue 1
> *********************************************
>
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