def listen(self):
while 1:
msgs = self._receiveOne(multiple=1)
for msg in msgs:
dec = self._decryptSession(msg)
from messagewrapper import getGenericWrapper
metadata, datas = getGenericWrapper().unwrapArgsAndDatas("servicemetadata", dec)
msg = datas["message"]
self._callback(msg, metadata)
def disconnect(self):
"""
Closes down the connection of this client to the service.
"""
from messagewrapper import getGenericWrapper
args = {}
datas = {}
args["serviceid"] = self._serviceId
args["disconnect"] = "1"
msg = getGenericWrapper().wrapArgsAndDatas("servicemessage", args, datas)
ciphered = self._encryptSession(msg)
self._sendOne(ciphered)
def _rendevous(self, number):
"""
Authenticates at the server process using the service fifo.
"""
self._name_pipe_in = FIFO_PATH_IN + "." + str(number)
self._name_pipe_out = FIFO_PATH_OUT + "." + str(number)
from messagewrapper import getGenericWrapper
plain, signature = self._createAuthenticationToken()
args = {}
args["action"] = "authenticate"
args["serviceid"] = self._serviceId
datas = {}
datas["plain"] = plain
datas["signature"] = signature
xmlRendevous = getGenericWrapper().wrapArgsAndDatas("rendevous", args, datas)
self._sendOne(xmlRendevous)
reply = self._receiveOne()
args, datas = getGenericWrapper().unwrapArgsAndDatas("rendevous", reply)
# print args
if not int(args["sucess"]):
if args.has_key("errormessage"):
error = args["errormessage"]
else:
error = "The provided key might have not been accepted."
from errorhandling import G4dsDependencyException
raise G4dsDependencyException("Connecting against Service not sucessful. %s" % (error))
sessionkey = datas["sessionkey"]
self._sessionkey = self._decryptWithMyPrivateKey(sessionkey)
import thread
thread.start_new_thread(self.listen, ())
def sendMessage(self, destinationMember, destinationCommunity, message, actionstring=None):
from messagewrapper import getGenericWrapper
if not actionstring:
actionstring = "g4ds.service." + self._serviceId
args = {}
datas = {}
args["serviceid"] = self._serviceId
args["destinationmember"] = destinationMember
args["destinationcommunity"] = destinationCommunity
args["actionstring"] = actionstring
datas["message"] = message
msg = getGenericWrapper().wrapArgsAndDatas("servicemessage", args, datas)
## print "Sending before cipher:\n%s" %(msg)
ciphered = self._encryptSession(msg)
self._sendOne(ciphered)