def handle_data(self):
self.logger.debug("Handling incoming data")
message = None
if self.data:
log_message = "Incoming discovery data from (" + str(self.address[0]) + ", " + str(
self.address[1]) + "):\n<<<START>>>\n" + self.data.decode() + "\n<<<END>>>"
self.logger.info(log_message)
message = Message.to_object(self.data.decode())
return message
def respond_to_description_request(self):
"""
Handles the description request and sends a response.
:return:
"""
self.logger.debug("Responding to description request")
data = self.connection.recv(BUFFER_SIZE).decode('UTF-8')
# print(self.node.name + " received a description request:\n" + data)
log_message = "Description request received \n'" + data + "'"
self.logger.info(log_message)
with open(self.filename, 'a') as f:
log_message = str(datetime.now()) + ": " + "Description request received"
f.write(log_message)
log_message = "\t\t" + data
f.write(log_message)
f.flush()
if len(data) <= 0:
return
try:
message = Message.to_object(data)
except ValueError as e:
self.logger.error(e.args[0])
# print(e.args)
return
# TODO: fix message type checking (message.to_object always assigns "2"!)
self.logger.debug("Skipping Description request message type check; Responding to request.")
# Create description message from node info
response = Message(MessageType.description_response, self.node.name, self.node.address,
Timestamp.create_timestamp(), self.node.service_list)
# Convert message to json
json_message = json.dumps(response.to_json())
# Encode message to utf-8 for sending through socket
data = json_message.encode()
self.connection.send(data)
"""
def request_description(self):
"""
Request description of a node's services.
Expects name of the node.
"""
if len(self.received_command) != 2:
self.logger.error("Wrong argument count! Expected \"describe node_name\".")
return
node_name = self.received_command[1]
address = self.peer_list.get_node_address(node_name) # TODO: send description request to address in peer_list
self.logger.info("Sending description request to " + str(address))
# Create message and send it.
message = Message(MessageType.description_request, node_name, address, Timestamp.create_timestamp())
data = message.to_json()
data_str = json.dumps(data)
self.output_socket.connect(address[0], address[1])
self.measurer.start_timer()
self.output_socket.send(bytes(data_str, 'UTF-8'))
response = self.output_socket.read()
self.measurer.stop_timer()
duration = self.measurer.get_last_duration()
self.measurer.description_duration(self.node.name, duration)
self.logger.info("Description request duration: {0}".format(duration))
response_str = response.decode('UTF-8')
self.logger.debug(self.node.name + " received description response:\n" + response_str)
if self.remote_socket:
self.remote_socket.sendall(response)
else:
pass
#print(response_str)
update_message = Message.to_object(response_str)
self.peer_list.update_node(node_name, update_message)
#message = Message.to_object(response_str)
return None
