def recvResponse(self, resp, tr):
code, reason = resp.getSCode()
if code < 200:
return None
if self.te != None:
self.te.cancel()
self.te = None
# When the final response arrives make sure to send BYE
# if response is positive 200 OK and move into
# UaStateDisconnected to catch any in-flight BYE from the
# called party.
#
# If the response is negative or redirect go to the UaStateDead
# immediately, since this means that we won't receive any more
# requests from the calling party. XXX: redirects should probably
# somehow reported to the upper level, but it will create
# significant additional complexity there, since after signalling
# Failure/Disconnect calling party don't expect any more
# events to be delivered from the called one. In any case,
# this should be fine, since we are in this state only when
# caller already has declared his wilingless to end the session,
# so that he is probably isn't interested in redirects anymore.
if code >= 200 and code < 300:
if resp.countHFs('contact') > 0:
self.ua.rTarget = resp.getHFBody('contact').getUrl().getCopy()
self.ua.routes = [
x.getCopy() for x in resp.getHFBodys('record-route')
]
self.ua.routes.reverse()
if len(self.ua.routes) > 0:
if not self.ua.routes[0].getUrl().lr:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes.pop(0).getUrl()
self.ua.rAddr = self.ua.rTarget.getAddr()
elif self.ua.outbound_proxy != None:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes[0].getUrl().getCopy()
self.ua.rTarget.lr = False
self.ua.rTarget.other = tuple()
self.ua.rTarget.headers = tuple()
else:
self.ua.rAddr = self.ua.routes[0].getAddr()
else:
self.ua.rAddr = self.ua.rTarget.getAddr()
self.ua.rUri.setTag(resp.getHFBody('to').getTag())
req = self.ua.genRequest('BYE')
self.ua.lCSeq += 1
self.ua.global_config['_sip_tm'].newTransaction(req, \
laddress = self.ua.source_address)
return (UaStateDisconnected, )
return (UaStateDead, )
def recvRequest(self, req):
if req.getMethod() != 'INVITE':
#print 'wrong request %s in the Trying state' % req.getMethod()
return None
self.ua.origin = 'caller'
#print 'INVITE received in the Idle state, going to the Trying state'
if req.countHFs('cisco-guid') != 0:
try:
self.ua.cGUID = req.getHFBody('cisco-guid').getCopy()
except:
self.ua.cGUID = SipCiscoGUID()
elif req.countHFs('h323-conf-id') != 0:
try:
self.ua.cGUID = req.getHFBody('h323-conf-id').getCopy()
except:
self.ua.cGUID = SipCiscoGUID()
else:
self.ua.cGUID = SipCiscoGUID()
self.ua.uasResp = req.genResponse(100,
'Trying',
server=self.ua.local_ua)
self.ua.lCSeq = 100 # XXX: 100 for debugging so that incorrect CSeq generation will be easily spotted
if self.ua.lContact == None:
self.ua.lContact = SipContact()
self.ua.rTarget = req.getHFBody('contact').getUrl().getCopy()
self.ua.routes = [
x.getCopy() for x in self.ua.uasResp.getHFBodys('record-route')
]
if len(self.ua.routes) > 0:
if not self.ua.routes[0].getUrl().lr:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes.pop(0).getUrl()
self.ua.rAddr = self.ua.rTarget.getAddr()
elif self.ua.outbound_proxy != None:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes[0].getUrl().getCopy()
self.ua.rTarget.lr = False
self.ua.rTarget.other = tuple()
self.ua.rTarget.headers = tuple()
else:
self.ua.rAddr = self.ua.routes[0].getAddr()
else:
self.ua.rAddr = self.ua.rTarget.getAddr()
self.ua.rAddr0 = self.ua.rAddr
self.ua.global_config['_sip_tm'].sendResponse(
self.ua.uasResp, lossemul=self.ua.uas_lossemul)
self.ua.uasResp.getHFBody('to').setTag(self.ua.lTag)
self.ua.lUri = SipFrom(
address=self.ua.uasResp.getHFBody('to').getUri())
self.ua.rUri = SipTo(
address=self.ua.uasResp.getHFBody('from').getUri())
self.ua.cId = self.ua.uasResp.getHFBody('call-id')
self.ua.global_config['_sip_tm'].regConsumer(
self.ua, str(self.ua.cId), compact=self.ua.compact_sip)
if req.countHFs('authorization') == 0:
auth = None
else:
auth = req.getHFBody('authorization').getCopy()
body = req.getBody()
self.ua.branch = req.getHFBody('via').getBranch()
event = CCEventTry((self.ua.cId, self.ua.cGUID, self.ua.rUri.getUrl().username, req.getRURI().username, body, auth, \
self.ua.rUri.getUri().name), rtime = req.rtime, origin = self.ua.origin)
try:
event.reason = req.getHFBody('reason')
except:
pass
try:
event.max_forwards = req.getHFBody('max-forwards').getNum()
except:
pass
if self.ua.expire_time != None:
self.ua.expire_time += event.rtime
if self.ua.no_progress_time != None:
self.ua.no_progress_time += event.rtime
if self.ua.expire_time != None and self.ua.no_progress_time >= self.ua.expire_time:
self.ua.no_progress_time = None
if self.ua.no_progress_time != None:
self.ua.no_progress_timer = TimeoutAbs(self.ua.no_progress_expires,
self.ua.no_progress_time)
elif self.ua.expire_time != None:
self.ua.expire_timer = TimeoutAbs(self.ua.expires,
self.ua.expire_time)
if body != None:
if self.ua.on_remote_sdp_change != None:
self.ua.on_remote_sdp_change(
body,
lambda x: self.ua.delayed_remote_sdp_update(event, x))
self.ua.setup_ts = req.rtime
return (UasStateTrying, )
else:
self.ua.rSDP = body.getCopy()
else:
self.ua.rSDP = None
self.ua.equeue.append(event)
self.ua.setup_ts = req.rtime
return (UasStateTrying, )
def incomingResponse(self, msg, t, checksum):
# In those two states upper level already notified, only do ACK retransmit
# if needed
if t.state == TERMINATED:
return
if t.state == TRYING:
# Stop timers
if t.teA != None:
t.teA.cancel()
t.teA = None
if t.state in (TRYING, RINGING):
if t.teB != None:
t.teB.cancel()
t.teB = None
if msg.getSCode()[0] < 200:
# Privisional response - leave everything as is, except that
# change state and reload timeout timer
if t.state == TRYING:
t.state = RINGING
if t.cancelPending:
self.newTransaction(t.cancel, userv=t.userv)
t.cancelPending = False
t.teB = Timeout(self.timerB, t.expires, 1, t)
self.l1rcache[checksum] = (None, None, None)
if t.resp_cb != None:
if t.cb_ifver == 1:
t.resp_cb(msg)
else:
t.resp_cb(msg, t)
else:
# Final response - notify upper layer and remove transaction
if t.resp_cb != None:
if t.cb_ifver == 1:
t.resp_cb(msg)
else:
t.resp_cb(msg, t)
if t.needack:
# Prepare and send ACK if necessary
fcode = msg.getSCode()[0]
tag = msg.getHFBody('to').getTag()
if tag != None:
t.ack.getHFBody('to').setTag(tag)
rAddr = None
if msg.getSCode()[0] >= 200 and msg.getSCode()[0] < 300:
# Some hairy code ahead
if msg.countHFs('contact') > 0:
rTarget = msg.getHFBody(
'contact').getUrl().getCopy()
else:
rTarget = None
routes = [
x.getCopy() for x in msg.getHFBodys('record-route')
]
routes.reverse()
if len(routes) > 0:
if not routes[0].getUrl().lr:
if rTarget != None:
routes.append(
SipRoute(address=SipAddress(
url=rTarget)))
rTarget = routes.pop(0).getUrl()
rAddr = rTarget.getAddr()
else:
rAddr = routes[0].getAddr()
elif rTarget != None:
rAddr = rTarget.getAddr()
if rTarget != None:
t.ack.setRURI(rTarget)
if rAddr != None:
t.ack.setTarget(rAddr)
t.ack.delHFs('route')
t.ack.appendHeaders(
[SipHeader(name='route', body=x) for x in routes])
if fcode >= 200 and fcode < 300:
t.ack.getHFBody('via').genBranch()
if rAddr == None:
rAddr = t.address
if not t.uack:
self.transmitMsg(t.userv, t.ack, rAddr, checksum,
t.compact)
else:
t.state = UACK
t.ack_rAddr = rAddr
t.ack_checksum = checksum
self.l1rcache[checksum] = (None, None, None)
t.teG = Timeout(self.timerG, 64, 1, t)
return
else:
self.l1rcache[checksum] = (None, None, None)
del self.tclient[t.tid]
t.cleanup()
def recvResponse(self, resp):
body = resp.getBody()
code, reason = resp.getSCode()
scode = (code, reason, body)
if self.ua.no_reply_timer != None:
self.ua.no_reply_timer.cancel()
self.ua.no_reply_timer = None
if code == 100 and self.ua.no_progress_time != None:
self.ua.no_progress_timer = TimeoutAbs(
self.ua.no_progress_expires, self.ua.no_progress_time)
elif code < 200 and self.ua.expire_time != None:
self.ua.expire_timer = TimeoutAbs(self.ua.expires,
self.ua.expire_time)
if code == 100:
if self.ua.p100_ts == None:
self.ua.p100_ts = resp.rtime
self.ua.equeue.append(
CCEventRing(scode, rtime=resp.rtime, origin=self.ua.origin))
return None
if self.ua.no_progress_timer != None:
self.ua.no_progress_timer.cancel()
self.ua.no_progress_timer = None
if code < 200 and self.ua.expire_time != None:
self.ua.expire_timer = TimeoutAbs(self.ua.expires,
self.ua.expire_time)
if code < 200:
self.ua.last_scode = code
event = CCEventRing(scode, rtime=resp.rtime, origin=self.ua.origin)
if body != None:
if self.ua.on_remote_sdp_change != None:
self.ua.on_remote_sdp_change(
body,
lambda x: self.ua.delayed_remote_sdp_update(event, x))
self.ua.p1xx_ts = resp.rtime
return (UacStateRinging, self.ua.ring_cbs, resp.rtime,
self.ua.origin, code)
else:
self.ua.rSDP = body.getCopy()
else:
self.ua.rSDP = None
self.ua.equeue.append(event)
self.ua.p1xx_ts = resp.rtime
return (UacStateRinging, self.ua.ring_cbs, resp.rtime,
self.ua.origin, code)
if self.ua.expire_timer != None:
self.ua.expire_timer.cancel()
self.ua.expire_timer = None
if code >= 200 and code < 300:
if resp.countHFs('contact') > 0:
self.ua.rTarget = resp.getHFBody('contact').getUrl().getCopy()
self.ua.routes = [
x.getCopy() for x in resp.getHFBodys('record-route')
]
self.ua.routes.reverse()
if len(self.ua.routes) > 0:
if not self.ua.routes[0].getUrl().lr:
self.ua.routes.append(
SipRoute(address=SipAddress(
url=self.ua.rTarget.getCopy())))
self.ua.rTarget = self.ua.routes.pop(0).getUrl()
self.ua.rAddr = self.ua.rTarget.getAddr()
else:
self.ua.rAddr = self.ua.routes[0].getAddr()
else:
self.ua.rAddr = self.ua.rTarget.getAddr()
self.ua.rUri.setTag(resp.getHFBody('to').getTag())
event = CCEventConnect(scode,
rtime=resp.rtime,
origin=self.ua.origin)
self.ua.startCreditTimer(resp.rtime)
if body != None:
if self.ua.on_remote_sdp_change != None:
self.ua.on_remote_sdp_change(
body,
lambda x: self.ua.delayed_remote_sdp_update(event, x))
self.ua.connect_ts = resp.rtime
return (UaStateConnected, self.ua.conn_cbs, resp.rtime,
self.ua.origin)
else:
self.ua.rSDP = body.getCopy()
else:
self.ua.rSDP = None
self.ua.equeue.append(event)
self.ua.connect_ts = resp.rtime
return (UaStateConnected, self.ua.conn_cbs, resp.rtime,
self.ua.origin)
if code in (301, 302) and resp.countHFs('contact') > 0:
scode = (code, reason, body,
resp.getHFBody('contact').getUrl().getCopy())
self.ua.equeue.append(
CCEventRedirect(scode, rtime=resp.rtime,
origin=self.ua.origin))
else:
event = CCEventFail(scode, rtime=resp.rtime, origin=self.ua.origin)
try:
event.reason = resp.getHFBody('reason')
except:
pass
self.ua.equeue.append(event)
self.ua.disconnect_ts = resp.rtime
return (UaStateFailed, self.ua.fail_cbs, resp.rtime, self.ua.origin,
code)
def recvResponse(self, resp, tr):
body = resp.getBody()
code, reason = resp.getSCode()
scode = (code, reason, body)
if code < 200:
if self.ua.p1xx_ts == None:
self.ua.p1xx_ts = resp.rtime
self.ua.last_scode = code
event = CCEventRing(scode, rtime=resp.rtime, origin=self.ua.origin)
for ring_cb in self.ua.ring_cbs:
ring_cb(self.ua, resp.rtime, self.ua.origin, code)
if body != None:
if self.ua.on_remote_sdp_change != None:
self.ua.on_remote_sdp_change(
body,
lambda x: self.ua.delayed_remote_sdp_update(event, x))
return None
else:
self.ua.rSDP = body.getCopy()
else:
self.ua.rSDP = None
self.ua.equeue.append(event)
return None
if self.ua.expire_timer != None:
self.ua.expire_timer.cancel()
self.ua.expire_timer = None
if code >= 200 and code < 300:
if resp.countHFs('contact') > 0:
self.ua.rTarget = resp.getHFBody('contact').getUrl().getCopy()
self.ua.routes = [
x.getCopy() for x in resp.getHFBodys('record-route')
]
self.ua.routes.reverse()
if len(self.ua.routes) > 0:
if not self.ua.routes[0].getUrl().lr:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes.pop(0).getUrl()
self.ua.rAddr = self.ua.rTarget.getAddr()
elif self.ua.outbound_proxy != None:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes[0].getUrl().getCopy()
self.ua.rTarget.lr = False
self.ua.rTarget.other = tuple()
self.ua.rTarget.headers = tuple()
else:
self.ua.rAddr = self.ua.routes[0].getAddr()
else:
self.ua.rAddr = self.ua.rTarget.getAddr()
tag = resp.getHFBody('to').getTag()
if tag == None:
print 'tag-less 200 OK, disconnecting'
scode = (502, 'Bad Gateway')
self.ua.equeue.append(
CCEventFail(scode, rtime=resp.rtime,
origin=self.ua.origin))
if resp.countHFs('contact') > 0:
self.ua.rTarget = resp.getHFBody(
'contact').getUrl().getCopy()
self.ua.routes = [
x.getCopy() for x in resp.getHFBodys('record-route')
]
self.ua.routes.reverse()
if len(self.ua.routes) > 0:
if not self.ua.routes[0].getUrl().lr:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes.pop(0).getUrl()
self.ua.rAddr = self.ua.rTarget.getAddr()
elif self.ua.outbound_proxy != None:
self.ua.routes.append(
SipRoute(address=SipAddress(url=self.ua.rTarget)))
self.ua.rTarget = self.ua.routes[0].getUrl().getCopy()
self.ua.rTarget.lr = False
self.ua.rTarget.other = tuple()
self.ua.rTarget.headers = tuple()
else:
self.ua.rAddr = self.ua.routes[0].getAddr()
else:
self.ua.rAddr = self.ua.rTarget.getAddr()
req = self.ua.genRequest('BYE')
self.ua.lCSeq += 1
self.ua.global_config['_sip_tm'].newTransaction(req, \
laddress = self.ua.source_address)
return (UaStateFailed, self.ua.fail_cbs, resp.rtime,
self.ua.origin, scode[0])
self.ua.rUri.setTag(tag)
if not self.ua.late_media or body == None:
self.ua.late_media = False
event = CCEventConnect(scode,
rtime=resp.rtime,
origin=self.ua.origin)
self.ua.startCreditTimer(resp.rtime)
self.ua.connect_ts = resp.rtime
rval = (UaStateConnected, self.ua.conn_cbs, resp.rtime,
self.ua.origin)
else:
event = CCEventPreConnect(scode,
rtime=resp.rtime,
origin=self.ua.origin)
tr.uack = True
self.ua.pending_tr = tr
rval = (UaStateConnected, )
if body != None:
if self.ua.on_remote_sdp_change != None:
self.ua.on_remote_sdp_change(
body,
lambda x: self.ua.delayed_remote_sdp_update(event, x))
return rval
else:
self.ua.rSDP = body.getCopy()
else:
self.ua.rSDP = None
self.ua.equeue.append(event)
return rval
if code in (301, 302) and resp.countHFs('contact') > 0:
scode = (code, reason, body,
resp.getHFBody('contact').getUrl().getCopy())
self.ua.equeue.append(
CCEventRedirect(scode, rtime=resp.rtime,
origin=self.ua.origin))
else:
event = CCEventFail(scode, rtime=resp.rtime, origin=self.ua.origin)
try:
event.reason = resp.getHFBody('reason')
except:
pass
self.ua.equeue.append(event)
self.ua.disconnect_ts = resp.rtime
return (UaStateFailed, self.ua.fail_cbs, resp.rtime, self.ua.origin,
code)