def soapenurl(request):
from nonsuckhttp import urlopen
d = urlopen(request)
factory = lambda response: SOAPResponseFactory(request, response)
errfactory = lambda response: SOAPErrorFactory(request, response.value)
d.addCallbacks(factory, errfactory)
return d
def handleSearchResponse(self, message):
headers, body = self.parseSearchResponse(message)
loc = headers.get('location')
if not loc:
log.msg("No location header in response to M-SEARCH!",
system='UPnP')
return
loc = loc[0]
d = urlopen(loc)
log.msg("found a UPnP device at %s"%loc, system="UPnP")
d.addCallback(self.handleIGDeviceResponse, loc).addErrback(log.err)
def handleSearchResponse(self, message):
headers, body = self.parseSearchResponse(message)
loc = headers.get('location')
if not loc:
log.msg("No location header in response to M-SEARCH!",
system='UPnP')
return
loc = loc[0]
d = urlopen(loc)
log.msg("found a UPnP device at %s" % loc, system="UPnP")
d.addCallback(self.handleIGDeviceResponse, loc).addErrback(log.err)
def stupidrandomdelaytoworkaroundbug(self, body, loc):
"""
On Mac (but not on Linux), Twisted seems to drop the ball on
connecTCP(). The TCP connection gets set up (as confirmed by packet
trace showing three-part handshake), but the factory object never gets
buildProtocol(). Eventually (depending on the timeout value), the
factory object gets its connectionFailed() method called instead.
Mysteriously, this *always* happens on the urlopen in this method, and
never on any of the other TCP connections that are made during Shtoom
setup. Also mysteriously, inserting this stupidrandomdelay of 4 seconds
fixes it.
Surely I should write a minimal test case and then either give the test
case to the Twisted folks or fix it myself, but some other things are
way too urgent today.
The sequence of events that I observed was: connect 1; connect 2;
connect 3; callback 1; callback 2; connect 4; callback 3; ...timeout 4".
where connect 1-3 are the "are you an IG device", and the connect 4 is
this "get WAN service desc". So maybe in twisted the even of the 3rd
tcp connection completing is screwing up the state of the 4th tcp
connection, which has been initiated by hasn't completed yet.
"""
#log.msg("after stupidrandomrelaytoworkaroundbug, got an IGDevice from %s"%(loc,), system='UPnP')
if self.controlURL is not None:
log.msg("already found UPnP, discarding duplicate response",
system="UPnP")
# We already got a working one - ignore this one
return
data = body.read()
bs = BeautifulSoap(data)
manufacturer = bs.first('manufacturer')
if manufacturer and manufacturer.contents:
log.msg("you're behind a %s"%(manufacturer.contents[0]),
system='UPnP')
self.upnpInfo['manufacturer'] = manufacturer.contents[0]
friendly = bs.first('friendlyName')
if friendly:
self.upnpInfo['friendlyName'] = str(friendly.contents[0])
urlbase = bs.first('URLBase')
if urlbase and urlbase.contents:
self.urlbase = str(urlbase.contents[0])
log.msg("upnp urlbase is %s"%(self.urlbase), system='UPnP')
else:
log.msg("upnp response has no urlbase, falling back to %s"%(loc,), system='UPnP')
self.urlbase = loc
wanservices = bs.fetch('service',
dict(serviceType='urn:schemas-upnp-org:service:WANIPConnection:%'))
for service in wanservices:
scpdurl = service.get('SCPDURL')
controlurl = service.get('controlURL')
if scpdurl and controlurl:
break
else:
log.msg("upnp response showed no WANIPConnections", system='UPnP')
if DEBUG:
print "dump of response", bs
return
self.controlURL = urlparse.urljoin(self.urlbase, controlurl)
log.msg("upnp %r controlURL is %s"%(self, self.controlURL), system='UPnP')
d = urlopen(urlparse.urljoin(self.urlbase, scpdurl))
d.addCallback(self.handleWanServiceDesc).addErrback(log.err)
def stupidrandomdelaytoworkaroundbug(self, body, loc):
"""
On Mac (but not on Linux), Twisted seems to drop the ball on
connecTCP(). The TCP connection gets set up (as confirmed by packet
trace showing three-part handshake), but the factory object never gets
buildProtocol(). Eventually (depending on the timeout value), the
factory object gets its connectionFailed() method called instead.
Mysteriously, this *always* happens on the urlopen in this method, and
never on any of the other TCP connections that are made during Shtoom
setup. Also mysteriously, inserting this stupidrandomdelay of 4 seconds
fixes it.
Surely I should write a minimal test case and then either give the test
case to the Twisted folks or fix it myself, but some other things are
way too urgent today.
The sequence of events that I observed was: connect 1; connect 2;
connect 3; callback 1; callback 2; connect 4; callback 3; ...timeout 4".
where connect 1-3 are the "are you an IG device", and the connect 4 is
this "get WAN service desc". So maybe in twisted the even of the 3rd
tcp connection completing is screwing up the state of the 4th tcp
connection, which has been initiated by hasn't completed yet.
"""
#log.msg("after stupidrandomrelaytoworkaroundbug, got an IGDevice from %s"%(loc,), system='UPnP')
if self.controlURL is not None:
log.msg("already found UPnP, discarding duplicate response",
system="UPnP")
# We already got a working one - ignore this one
return
data = body.read()
bs = BeautifulSoap(data)
manufacturer = bs.first('manufacturer')
if manufacturer and manufacturer.contents:
log.msg("you're behind a %s" % (manufacturer.contents[0]),
system='UPnP')
self.upnpInfo['manufacturer'] = manufacturer.contents[0]
friendly = bs.first('friendlyName')
if friendly:
self.upnpInfo['friendlyName'] = str(friendly.contents[0])
urlbase = bs.first('URLBase')
if urlbase and urlbase.contents:
self.urlbase = str(urlbase.contents[0])
log.msg("upnp urlbase is %s" % (self.urlbase), system='UPnP')
else:
log.msg("upnp response has no urlbase, falling back to %s" %
(loc, ),
system='UPnP')
self.urlbase = loc
wanservices = bs.fetch(
'service',
dict(serviceType='urn:schemas-upnp-org:service:WANIPConnection:%'))
for service in wanservices:
scpdurl = service.get('SCPDURL')
controlurl = service.get('controlURL')
if scpdurl and controlurl:
break
else:
log.msg("upnp response showed no WANIPConnections", system='UPnP')
if DEBUG:
print "dump of response", bs
return
self.controlURL = urlparse.urljoin(self.urlbase, controlurl)
log.msg("upnp %r controlURL is %s" % (self, self.controlURL),
system='UPnP')
d = urlopen(urlparse.urljoin(self.urlbase, scpdurl))
d.addCallback(self.handleWanServiceDesc).addErrback(log.err)