def receiveMessage(self, from_field, message_body):
#try:
# If recieving an init
if self.data_store.getSessionDetails(from_field) is None:
# decrypt init
init = SMSSecInitiatorMessage(self.data_store.this_telephone, from_field)
details = init.decryptMessage(message_body, self.data_store.getMachinePassword(from_field), self.data_store.private_key)
self.data_store.startNewReceivingSession(from_field,details['session_id'], details['iv'], details['key_params'], details['random_challenge'])
# increment recieved count
self.data_store.incrementReceiveSequence(from_field)
# send responder
return self.sendMessage(from_field, None)
# If receiving a responder
elif self.data_store.getSessionDetails(from_field)['receive_sequence']==0:
# decrypt responder
responder = SMSSecResponderMessage(from_field, self.data_store.this_telephone)
details = self.data_store.getSessionDetails(from_field)
responder.decryptMessage(message_body, details['random_challenge'], details['receive_iv'], details['key'])
# increment recieved count
self.data_store.incrementReceiveSequence(from_field)
# send message
msg = self.sendMessage(from_field, None)
"MSG"
print msg
return msg
# If receiving a message
else:
# Get session details
details = self.data_store.getSessionDetails(from_field)
# decrypt message
message = SMSSecSequenceMessage(self.data_store.this_telephone, from_field)
decrypted_message = message.decryptMessage(message_body, details["receive_sequence"], details["receive_iv"], details["key"])
# increment recieved count
self.data_store.incrementReceiveSequence(from_field)
# append message to the store
# If message is last, append to store then return
if decrypted_message[-3:] == "END":
decrypted_message=decrypted_message.rstrip("END")
self.data_store.addRecievedMessagePart(from_field, decrypted_message)
details = self.data_store.getSessionDetails(from_field)
return {"status":5,"message":details["received_message"]}
# Otherwise just append
self.data_store.addRecievedMessagePart(from_field, decrypted_message)
details = self.data_store.getSessionDetails(from_field)
# Check if end
if details["received_message"][-3:] == "END":
# check store for message, append this message to it, the return
return {"status":5,"message":details["received_message"]}
return {"status":4, "message":details["received_message"]}
message = SMSSecSequenceMessage(clientstore.server_telephone, clientstore.booth_telephone)
details = clientstore.getCurrentSessionDetails()
# Encrypt first message
message.createMessage(
"candidates:{candidate: {name1:'ben' name2:'kingsley' party:'Pirate Party'},candidate: {name1:'ben' name2:'kingsley' party:'Pirate Party'}}",
details["send_sequence"],
details["send_iv"],
details["key"],
)
# Inc sequence no to 1 (for next msg)
clientstore.incrementSendSequence()
# Decrypt first message
details = store.getSessionDetails(fromField)
servMessage = SMSSecSequenceMessage(store.server_telephone, fromField)
print servMessage.decryptMessage(message.message, details["receive_sequence"], details["receive_iv"], details["key"])
servMessage = SMSSecSequenceMessage(fromField, store.server_telephone)
servMessage.createMessage("RightBackAtcha", details["send_sequence"], details["send_iv"], details["key"])
store.incrementSendSequence(fromField)
store.incrementReceiveSequence(fromField)
details = clientstore.getCurrentSessionDetails()
clientMessage = SMSSecSequenceMessage(fromField, store.server_telephone)
print clientMessage.decryptMessage(
servMessage.message, details["receive_sequence"], details["receive_iv"], details["key"]
)
# Inc sequence no to 1
# Create second message
# Inc sequence no to 2 (for next message)