def _create_local_media(self, uri_path):
transport = "TCP/TLS/MSRP" if uri_path[-1].use_tls else "TCP/MSRP"
attributes = []
path = " ".join(str(uri) for uri in uri_path)
attributes.append(SDPAttribute(b"path", path.encode()))
if self.direction not in [None, 'sendrecv']:
attributes.append(SDPAttribute(self.direction.encode(), b''))
if self.accept_types is not None:
a_types = " ".join(self.accept_types)
attributes.append(SDPAttribute(b"accept-types", a_types.encode()))
if self.accept_wrapped_types is not None:
a_w_types = " ".join(self.accept_wrapped_types)
attributes.append(
SDPAttribute(b"accept-wrapped-types", a_w_types.encode()))
attributes.append(
SDPAttribute(
b"setup",
self.local_role.encode() if self.local_role else None))
local_ip = uri_path[-1].host
connection = SDPConnection(local_ip.encode())
return SDPMediaStream(self.media_type.encode(),
uri_path[-1].port or 2855,
transport.encode(),
connection=connection,
formats=[b"*"],
attributes=attributes)
def content_to_sdpstream(content):
if content.description is None:
raise ValueError('Missing media description')
if content.transport is None:
raise ValueError('Missing media transport')
media_stream = SDPMediaStream(str(content.description.media), 0, 'RTP/AVP')
formats = []
attributes = []
for item in content.description.payloads:
formats.append(item.id)
attributes.append(SDPAttribute('rtpmap', '%d %s/%d' % (item.id, str(item.name), item.clockrate)))
if item.maxptime:
attributes.append(SDPAttribute('maxptime', str(item.maxptime)))
if item.ptime:
attributes.append(SDPAttribute('ptime', str(item.ptime)))
if item.parameters:
parameters_str = ';'.join(('%s=%s' % (p.name, p.value) for p in item.parameters))
attributes.append(SDPAttribute('fmtp', '%d %s' % (item.id, str(parameters_str))))
media_stream.formats = map(str, formats)
media_stream.attributes = attributes # set attributes so that _codec_list is generated
if content.description.encryption:
if content.description.encryption.required:
media_stream.transport = 'RTP/SAVP'
for crypto in content.description.encryption.cryptos:
crypto_str = '%s %s %s' % (crypto.tag, crypto.crypto_suite, crypto.key_params)
if crypto.session_params:
crypto_str += ' %s' % crypto.session_params
media_stream.attributes.append(SDPAttribute('crypto', str(crypto_str)))
if isinstance(content.transport, jingle.IceUdpTransport):
if content.transport.ufrag:
media_stream.attributes.append(SDPAttribute('ice-ufrag', str(content.transport.ufrag)))
if content.transport.password:
media_stream.attributes.append(SDPAttribute('ice-pwd', str(content.transport.password)))
for candidate in content.transport.candidates:
if not ipv4_re.match(candidate.ip):
continue
candidate_str = '%s %d %s %d %s %d typ %s' % (candidate.foundation, candidate.component, candidate.protocol.upper(), candidate.priority, candidate.ip, candidate.port, candidate.typ)
if candidate.related_addr and candidate.related_port:
candidate_str += ' raddr %s rport %d' % (candidate.related_addr, candidate.related_port)
media_stream.attributes.append(SDPAttribute('candidate', str(candidate_str)))
if content.transport.remote_candidate:
remote_candidate = content.transport.remote_candidate
remote_candidates_str = '%d %s %d' % (remote_candidate.component, remote_candidate.ip, remote_candidate.port)
media_stream.attributes.append(SDPAttribute('remote-candidates', str(remote_candidates_str)))
elif isinstance(content.transport, jingle.RawUdpTransport):
# Nothing to do here
pass
else:
raise ValueError
# Set the proper connection information, pick the first RTP candidate and use that
try:
candidate = next(c for c in content.transport.candidates if c.component == 1 and ipv4_re.match(c.ip))
except StopIteration:
raise ValueError
media_stream.connection = SDPConnection(str(candidate.ip))
media_stream.port = candidate.port
return media_stream
def content_to_sdpstream(content):
if content.description is None or content.transport is None:
raise ValueError
media_stream = SDPMediaStream(str(content.description.media), 0, 'RTP/AVP')
formats = []
attributes = []
for item in content.description.payloads:
formats.append(item.id)
attributes.append(SDPAttribute('rtpmap', '%d %s/%d' % (item.id, str(item.name), item.clockrate)))
if item.maxptime:
attributes.append(SDPAttribute('maxptime', str(item.maxptime)))
if item.ptime:
attributes.append(SDPAttribute('ptime', str(item.ptime)))
if item.parameters:
parameters_str = ';'.join(('%s=%s' % (p.name, p.value) for p in item.parameters))
attributes.append(SDPAttribute('fmtp', '%d %s' % (item.id, str(parameters_str))))
media_stream.formats = map(str, formats)
media_stream.attributes = attributes # set attributes so that _codec_list is generated
if content.description.encryption:
if content.description.encryption.required:
media_stream.transport = 'RTP/SAVP'
for crypto in content.description.encryption.cryptos:
crypto_str = '%s %s %s' % (crypto.tag, crypto.crypto_suite, crypto.key_params)
if crypto.session_params:
crypto_str += ' %s' % crypto.session_params
media_stream.attributes.append(SDPAttribute('crypto', str(crypto_str)))
if isinstance(content.transport, jingle.IceUdpTransport):
if content.transport.ufrag:
media_stream.attributes.append(SDPAttribute('ice-ufrag', str(content.transport.ufrag)))
if content.transport.password:
media_stream.attributes.append(SDPAttribute('ice-pwd', str(content.transport.password)))
for candidate in content.transport.candidates:
if not ipv4_re.match(candidate.ip):
continue
candidate_str = '%s %d %s %d %s %d typ %s' % (candidate.foundation, candidate.component, candidate.protocol.upper(), candidate.priority, candidate.ip, candidate.port, candidate.typ)
if candidate.related_addr and candidate.related_port:
candidate_str += ' raddr %s rport %d' % (candidate.related_addr, candidate.related_port)
media_stream.attributes.append(SDPAttribute('candidate', str(candidate_str)))
if content.transport.remote_candidate:
remote_candidate = content.transport.remote_candidate
remote_candidates_str = '%d %s %d' % (remote_candidate.component, remote_candidate.ip, remote_candidate.port)
media_stream.attributes.append(SDPAttribute('remote-candidates', str(remote_candidates_str)))
elif isinstance(content.transport, jingle.RawUdpTransport):
# Nothing to do here
pass
else:
raise ValueError
# Set the proper connection information, pick the first RTP candidate and use that
try:
candidate = next(c for c in content.transport.candidates if c.component == 1 and ipv4_re.match(c.ip))
except StopIteration:
raise ValueError
media_stream.connection = SDPConnection(str(candidate.ip))
media_stream.port = candidate.port
return media_stream
def _create_local_media(self, uri_path):
transport = "TCP/TLS/MSRP" if uri_path[-1].use_tls else "TCP/MSRP"
attributes = [
SDPAttribute("path", " ".join(str(uri) for uri in uri_path))
]
if self.direction not in [None, 'sendrecv']:
attributes.append(SDPAttribute(self.direction, ''))
if self.accept_types is not None:
attributes.append(
SDPAttribute("accept-types", " ".join(self.accept_types)))
if self.accept_wrapped_types is not None:
attributes.append(
SDPAttribute("accept-wrapped-types",
" ".join(self.accept_wrapped_types)))
attributes.append(SDPAttribute("setup", self.local_role))
local_ip = uri_path[-1].host
connection = SDPConnection(local_ip)
return SDPMediaStream(self.media_type,
uri_path[-1].port or 2855,
transport,
connection=connection,
formats=["*"],
attributes=attributes)
def _OH_AcceptOperation(self, operation):
if self.state != 'incoming':
return
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
streams = operation.streams
for stream in self.proposed_streams:
if stream in streams:
notification_center.add_observer(self, sender=stream)
stream.initialize(self, direction='incoming')
try:
wait_count = len(self.proposed_streams)
while wait_count > 0:
notification = operation.channel.wait()
if notification.name == 'MediaStreamDidInitialize':
wait_count -= 1
remote_sdp = self._sdp_negotiator.current_remote
local_ip = SIPConfig.local_ip.normalized
local_sdp = SDPSession(local_ip, connection=SDPConnection(local_ip), name=settings.user_agent)
stream_map = dict((stream.index, stream) for stream in self.proposed_streams)
for index, media in enumerate(remote_sdp.media):
stream = stream_map.get(index, None)
if stream is not None:
media = stream.get_local_media(remote_sdp=remote_sdp, index=index)
else:
media = SDPMediaStream.new(media)
media.port = 0
media.attributes = []
local_sdp.media.append(media)
try:
self._sdp_negotiator.set_local_answer(local_sdp)
self._sdp_negotiator.negotiate()
except SIPCoreError, e:
self._fail(originator='local', reason='incompatible-parameters', description=str(e))
return
self.local_focus = operation.is_focus
notification_center.post_notification('JingleSessionWillStart', sender=self)
# Get active SDPs (negotiator may make changes)
local_sdp = self._sdp_negotiator.active_local
remote_sdp = self._sdp_negotiator.active_remote
# Build the payload and send it over
payload = sdp_to_jingle(local_sdp)
payload.sid = self._id
if self.local_focus:
payload.conference_info = jingle.ConferenceInfo(True)
stanza = self._protocol.sessionAccept(self._local_jid, self._remote_jid, payload)
d = self._send_stanza(stanza)
block_on(d)
wait_count = 0
stream_map = dict((stream.index, stream) for stream in self.proposed_streams)
for index, local_media in enumerate(local_sdp.media):
remote_media = remote_sdp.media[index]
stream = stream_map.get(index, None)
if stream is not None:
if remote_media.port:
wait_count += 1
stream.start(local_sdp, remote_sdp, index)
else:
notification_center.remove_observer(self, sender=stream)
self.proposed_streams.remove(stream)
del stream_map[stream.index]
stream.deactivate()
stream.end()
removed_streams = [stream for stream in self.proposed_streams if stream.index >= len(local_sdp.media)]
for stream in removed_streams:
notification_center.remove_observer(self, sender=stream)
self.proposed_streams.remove(stream)
del stream_map[stream.index]
stream.deactivate()
stream.end()
with api.timeout(self.media_stream_timeout):
while wait_count > 0:
notification = operation.channel.wait()
if notification.name == 'MediaStreamDidStart':
wait_count -= 1
def _OH_AcceptOperation(self, operation):
if self.state != 'incoming':
return
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
streams = operation.streams
for stream in self.proposed_streams:
if stream in streams:
notification_center.add_observer(self, sender=stream)
stream.initialize(self, direction='incoming')
try:
wait_count = len(self.proposed_streams)
while wait_count > 0:
notification = operation.channel.wait()
if notification.name == 'MediaStreamDidInitialize':
wait_count -= 1
remote_sdp = self._sdp_negotiator.current_remote
local_ip = SIPConfig.local_ip.normalized
local_sdp = SDPSession(local_ip,
connection=SDPConnection(local_ip),
name=settings.user_agent)
stream_map = dict(
(stream.index, stream) for stream in self.proposed_streams)
for index, media in enumerate(remote_sdp.media):
stream = stream_map.get(index, None)
if stream is not None:
media = stream.get_local_media(remote_sdp=remote_sdp,
index=index)
else:
media = SDPMediaStream.new(media)
media.port = 0
media.attributes = []
local_sdp.media.append(media)
try:
self._sdp_negotiator.set_local_answer(local_sdp)
self._sdp_negotiator.negotiate()
except SIPCoreError as e:
self._fail(originator='local',
reason='incompatible-parameters',
description=str(e))
return
self.local_focus = operation.is_focus
notification_center.post_notification('JingleSessionWillStart',
sender=self)
# Get active SDPs (negotiator may make changes)
local_sdp = self._sdp_negotiator.active_local
remote_sdp = self._sdp_negotiator.active_remote
# Build the payload and send it over
payload = sdp_to_jingle(local_sdp)
payload.sid = self._id
if self.local_focus:
payload.conference_info = jingle.ConferenceInfo(True)
stanza = self._protocol.sessionAccept(self._local_jid,
self._remote_jid, payload)
d = self._send_stanza(stanza)
block_on(d)
wait_count = 0
stream_map = dict(
(stream.index, stream) for stream in self.proposed_streams)
for index, local_media in enumerate(local_sdp.media):
remote_media = remote_sdp.media[index]
stream = stream_map.get(index, None)
if stream is not None:
if remote_media.port:
wait_count += 1
stream.start(local_sdp, remote_sdp, index)
else:
notification_center.remove_observer(self,
sender=stream)
self.proposed_streams.remove(stream)
del stream_map[stream.index]
stream.deactivate()
stream.end()
removed_streams = [
stream for stream in self.proposed_streams
if stream.index >= len(local_sdp.media)
]
for stream in removed_streams:
notification_center.remove_observer(self, sender=stream)
self.proposed_streams.remove(stream)
del stream_map[stream.index]
stream.deactivate()
stream.end()
with api.timeout(self.media_stream_timeout):
while wait_count > 0:
notification = operation.channel.wait()
if notification.name == 'MediaStreamDidStart':
wait_count -= 1
except (MediaStreamDidNotInitializeError, MediaStreamDidFailError,
api.TimeoutError, IqTimeoutError, StanzaError) as e:
for stream in self.proposed_streams:
notification_center.remove_observer(self, sender=stream)
stream.deactivate()
stream.end()
if isinstance(e, api.TimeoutError):
error = 'media stream timed out while starting'
elif isinstance(e, IqTimeoutError):
error = 'timeout sending IQ stanza'
elif isinstance(e, StanzaError):
error = str(e.condition)
else:
error = 'media stream failed: %s' % e.data.reason
self._fail(originator='local',
reason='failed-application',
description=error)
else:
self.state = 'connected'
self.streams = self.proposed_streams
self.proposed_streams = None
self.start_time = datetime.now()
notification_center.post_notification(
'JingleSessionDidStart', self,
NotificationData(streams=self.streams))
