def _generateInvite(self, contacturi, fromName, uri, noSDP):
#RFC 3261 8.1.1
#RFC 3261 13.2.1
invite = Request("INVITE", uri)
invite.addHeader("to", formatAddress(uri))
invite.addHeader(
"from",
formatAddress((fromName, URL(contacturi.host,
contacturi.username), {
'tag': self.genTag()
})))
invite.addHeader(
"call-id", "%s@%s" %
(md5.md5(str(random.random())).hexdigest(), contacturi.host))
invite.addHeader("cseq", "%s INVITE" % self.localCSeq)
invite.addHeader("user-agent", "Divmod Sine")
if noSDP:
invite.headers["content-length"] = ["0"]
else:
invite.addHeader("content-type", "application/sdp")
#XXX maybe rip off IP discovered in SDP phase?
invite.addHeader("contact", formatAddress(contacturi))
def fillSDP(_):
def consultSDP(sdpobj):
sdp = sdpobj.show()
self.sessionDescription = sdp
invite.body = sdp
invite.headers['content-length'] = [str(len(sdp))]
invite.creationFinished()
return defer.maybeDeferred(self.rtp.getSDP, self,
None).addCallback(consultSDP)
def finish(_):
self.msg = invite
toAddress, fromAddress = self._finishInit()
self.localAddress = fromAddress
self.remoteAddress = toAddress
return self
d = self.rtp.createRTPSocket(self, contacturi.host)
def gotCookie(c):
self.cookie = c
d.addCallback(gotCookie)
if noSDP:
invite.creationFinished()
return d.addCallback(finish)
else:
return d.addCallback(fillSDP).addCallback(finish)
def reinvite(self, newContact, newSDP):
"""
Send a new INVITE to the remote address for this dialog.
@param newContact: a new local address for this dialog. if None, the existing one is used.
@param newSDP: An L{xshtoom.sdp.SDP} instance describing the new session.
"""
newSDP = upgradeSDP(self.sessionDescription, newSDP)
msg = self.generateRequest('INVITE')
if newContact:
msg.headers['contact'] = [formatAddress(newContact)]
msg.body = newSDP.show()
msg.headers['content-length'] = [str(len(newSDP.show()))]
msg.addHeader("content-type", "application/sdp")
self.reinviteMsg = msg
self.reinviteSDP = newSDP
for ct in self.tu.cts:
if (isinstance(ct, ClientInviteTransaction)
and ct.mode not in ('completed', 'terminated')):
self.clientState = "reinvite-waiting"
return
for st in self.tu.transport.serverTransactions.values():
if (st.tu == self.tu
and st.mode not in ('confirmed', 'terminated')):
self.clientState = "reinvite-waiting"
#XXX gotta do something to trigger the reinvite once the
#offending ST finishes
return
return self._sendReinvite(msg)
def reinvite(self, newContact, newSDP):
"""
Send a new INVITE to the remote address for this dialog.
@param newContact: a new local address for this dialog. if None, the existing one is used.
@param newSDP: An L{xshtoom.sdp.SDP} instance describing the new session.
"""
newSDP = upgradeSDP(self.sessionDescription, newSDP)
msg = self.generateRequest('INVITE')
if newContact:
msg.headers['contact'] = [formatAddress(newContact)]
msg.body = newSDP.show()
msg.headers['content-length'] = [str(len(newSDP.show()))]
msg.addHeader("content-type", "application/sdp")
self.reinviteMsg = msg
self.reinviteSDP = newSDP
for ct in self.tu.cts:
if (isinstance(ct, ClientInviteTransaction) and
ct.mode not in ('completed', 'terminated')):
self.clientState = "reinvite-waiting"
return
for st in self.tu.transport.serverTransactions.values():
if (st.tu == self.tu and
st.mode not in ('confirmed', 'terminated')):
self.clientState = "reinvite-waiting"
#XXX gotta do something to trigger the reinvite once the
#offending ST finishes
return
return self._sendReinvite(msg)
def generateRequest(self, method):
#RFC 3261 12.2.1.1
r = Request(method, self.remoteAddress[1])
if self.routeSet:
r.headers['route'] = [formatAddress(route) for route in self.routeSet]
if 'lr' not in self.routeSet[0][1].other:
r.headers['route'].append(formatAddress(("", r.uri, {})))
r.uri = parseAddress(r.headers['route'].pop())[1]
r.addHeader('to', formatAddress(self.remoteAddress))
r.addHeader('from', formatAddress(self.localAddress))
r.addHeader('cseq', "%s %s" % (self.localCSeq, method))
self.localCSeq += 1
r.addHeader('call-id', self.msg.headers['call-id'][0])
r.addHeader('contact', formatAddress(self.contactURI))
r.addHeader('content-length', 0)
return r
def _generateInvite(self, contacturi, fromName, uri, noSDP):
#RFC 3261 8.1.1
#RFC 3261 13.2.1
invite = Request("INVITE", uri)
invite.addHeader("to", formatAddress(uri))
invite.addHeader("from", formatAddress((fromName, URL(contacturi.host, contacturi.username), {'tag': self.genTag()})))
invite.addHeader("call-id",
"%s@%s" % (hashlib.md5(str(random.random())).hexdigest(),
contacturi.host))
invite.addHeader("cseq", "%s INVITE" % self.localCSeq)
invite.addHeader("user-agent", "Divmod Sine")
if noSDP:
invite.headers["content-length"] = ["0"]
else:
invite.addHeader("content-type", "application/sdp")
#XXX maybe rip off IP discovered in SDP phase?
invite.addHeader("contact", formatAddress(contacturi))
def fillSDP(_):
def consultSDP(sdpobj):
sdp = sdpobj.show()
self.sessionDescription = sdp
invite.body = sdp
invite.headers['content-length'] = [str(len(sdp))]
invite.creationFinished()
return defer.maybeDeferred(self.rtp.getSDP, self, None).addCallback(consultSDP)
def finish(_):
self.msg = invite
toAddress,fromAddress = self._finishInit()
self.localAddress = fromAddress
self.remoteAddress = toAddress
return self
d = self.rtp.createRTPSocket(self, contacturi.host)
def gotCookie(c):
self.cookie = c
d.addCallback(gotCookie)
if noSDP:
invite.creationFinished()
return d.addCallback(finish)
else:
return d.addCallback(fillSDP).addCallback(finish)
def generateRequest(self, method):
#RFC 3261 12.2.1.1
r = Request(method, self.remoteAddress[1])
if self.routeSet:
r.headers['route'] = [
formatAddress(route) for route in self.routeSet
]
if 'lr' not in self.routeSet[0][1].other:
r.headers['route'].append(formatAddress(("", r.uri, {})))
r.uri = parseAddress(r.headers['route'].pop())[1]
r.addHeader('to', formatAddress(self.remoteAddress))
r.addHeader('from', formatAddress(self.localAddress))
r.addHeader('cseq', "%s %s" % (self.localCSeq, method))
self.localCSeq += 1
r.addHeader('call-id', self.msg.headers['call-id'][0])
r.addHeader('contact', formatAddress(self.contactURI))
r.addHeader('content-length', 0)
return r
def responseFromRequest(self, code, msg, body, bodyType="application/sdp"):
response = Response(code)
for name in ("via", "call-id", "record-route", "cseq"):
response.headers[name] = msg.headers.get(name, [])[:]
if self.direction == 'server':
response.addHeader('to', formatAddress(self.localAddress))
response.addHeader('from', formatAddress(self.remoteAddress))
elif self.direction == 'client':
response.addHeader('from', formatAddress(self.localAddress))
response.addHeader('to', formatAddress(self.remoteAddress))
response.addHeader('user-agent', "Divmod Sine")
if msg.method == 'INVITE' and code == 200:
response.addHeader('contact', formatAddress(self.contactURI))
response.addHeader('content-length', len(body))
response.addHeader('content-type', bodyType)
response.bodyDataReceived(body)
else:
response.addHeader('content-length', 0)
response.creationFinished()
return response
def responseFromRequest(self, code, msg, body, bodyType="application/sdp"):
response = Response(code)
for name in ("via", "call-id", "record-route", "cseq"):
response.headers[name] = msg.headers.get(name, [])[:]
if self.direction == 'server':
response.addHeader('to', formatAddress(self.localAddress))
response.addHeader('from', formatAddress(self.remoteAddress))
elif self.direction == 'client':
response.addHeader('from', formatAddress(self.localAddress))
response.addHeader('to', formatAddress(self.remoteAddress))
response.addHeader('user-agent', "Divmod Sine")
if msg.method == 'INVITE' and code == 200:
response.addHeader('contact', formatAddress(self.contactURI))
response.addHeader('content-length', len(body))
response.addHeader('content-type', bodyType)
response.bodyDataReceived(body)
else:
response.addHeader('content-length', 0)
response.creationFinished()
return response
