def __init__(self, buf = None, method = None, ruri = None, sipver = 'SIP/2.0', to = None, fr0m = None, via = None, cseq = None, \
callid = None, maxforwards = None, body = None, contact = None, routes = (), target = None, cguid = None,
user_agent = None, expires = None):
SipMsg.__init__(self, buf)
if buf != None:
return
self.method = method
self.ruri = ruri
if target == None:
if len(routes) == 0:
self.setTarget(self.ruri.getAddr())
else:
self.setTarget(routes[0].getAddr())
else:
self.setTarget(target)
self.sipver = sipver
self.appendHeader(SipHeader(name = 'via', body = via))
if via == None:
self.getHFBody('via').genBranch()
self.appendHeaders([SipHeader(name = 'route', body = x) for x in routes])
self.appendHeader(SipHeader(name = 'max-forwards', body = maxforwards))
self.appendHeader(SipHeader(name = 'from', body = fr0m))
if to == None:
to = SipTo(address = SipAddress(url = ruri))
self.appendHeader(SipHeader(name = 'to', body = to))
self.appendHeader(SipHeader(name = 'call-id', body = callid))
self.appendHeader(SipHeader(name = 'cseq', body = SipCSeq(cseq = cseq, method = method)))
if contact != None:
self.appendHeader(SipHeader(name = 'contact', body = contact))
if expires == None and method == 'INVITE':
expires = SipHeader(name = 'expires')
self.appendHeader(expires)
elif expires != None:
expires = SipHeader(name = 'expires', body = expires)
self.appendHeader(expires)
if user_agent != None:
self.user_agent = user_agent
self.appendHeader(SipHeader(name = 'user-agent', bodys = user_agent))
else:
self.appendHeader(SipHeader(name = 'user-agent'))
if cguid != None:
self.appendHeader(SipHeader(name = 'cisco-guid', body = cguid))
self.appendHeader(SipHeader(name = 'h323-conf-id', body = cguid))
if body != None:
self.setBody(body)
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 recvEvent(self, event):
if isinstance(event, CCEventTry):
if self.ua.setup_ts == None:
self.ua.setup_ts = event.rtime
self.ua.origin = 'callee'
cId, cGUID, callingID, calledID, body, auth, callingName = event.getData(
)
if body != None and self.ua.on_local_sdp_change != None and body.needs_update:
self.ua.on_local_sdp_change(body,
lambda x: self.ua.recvEvent(event))
return None
if cId == None:
self.ua.cId = SipCallId()
else:
self.ua.cId = cId.getCopy()
self.ua.global_config['_sip_tm'].regConsumer(
self.ua, str(self.ua.cId))
self.ua.rTarget = SipURL(username=calledID,
host=self.ua.rAddr0[0],
port=self.ua.rAddr0[1])
self.ua.rUri = SipTo(address=SipAddress(
url=self.ua.rTarget.getCopy(), hadbrace=True))
self.ua.rUri.getUrl().port = None
self.ua.lUri = SipFrom(address=SipAddress(url=SipURL(
username=callingID),
hadbrace=True,
name=callingName))
self.ua.lUri.getUrl().port = None
self.ua.lUri.setTag(self.ua.lTag)
self.ua.lCSeq = 200
self.ua.lContact = SipContact()
self.ua.lContact.getUrl().username = callingID
self.ua.routes = []
self.ua.cGUID = cGUID
self.ua.lSDP = body
req = self.ua.genRequest('INVITE', body, reason=event.reason)
self.ua.lCSeq += 1
self.ua.tr = self.ua.global_config['_sip_tm'].newTransaction(req, self.ua.recvResponse, \
laddress = self.ua.source_address)
self.ua.auth = None
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_reply_time != None:
if self.ua.no_reply_time < 32:
self.ua.no_reply_time += event.rtime
if self.ua.expire_time != None and self.ua.no_reply_time >= self.ua.expire_time:
self.ua.no_reply_time = None
elif self.ua.no_progress_time != None and self.ua.no_reply_time >= self.ua.no_progress_time:
self.ua.no_reply_time = None
else:
self.ua.no_reply_time = None
if self.ua.no_reply_time != None:
self.ua.no_reply_timer = TimeoutAbs(self.ua.no_reply_expires,
self.ua.no_reply_time)
elif 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)
return (UacStateTrying, )
if isinstance(event, CCEventFail) or isinstance(
event, CCEventRedirect) or isinstance(event,
CCEventDisconnect):
return (UaStateDead, self.ua.disc_cbs, event.rtime, event.origin)
return None