def client_protocol(socket):
    connect_write_to_server = socket.makefile('w')
    protocol = 'I32CFP_HELLO\n'
    connect_write_to_server.write(protocol)
    connect_write_to_server.flush()
    receive_ready = socket.makefile('r')
    protocol = receive_ready.readline()
    if protocol == 'READY\n':
        print('The server is ready to start the game')
        pass
    else:
        socket.close()
        print('server not speaking the same protocols,close connection.\n')
        return 

	def handle_request(socket, client_address, server):
		s = ServerInfo(software=server_version, multiconnection=True, multithread=False, multiprocess=False)
		c = ConnectionInfo(server=s)

		c.server.addr = LazyAddress(socket.family, lambda: socket.getsockname())
		c.remote.addr = Address(socket.family, client_address)

		c.socket = socket

		with socket.makefile('r') as input:
			with socket.makefile('w') as output:
				app(input, output, sys.stderr, c)

def receive_protocols(socket):
    file_in = socket.makefile('r')
    protocols = file_in.readline()
    file_in.close()
    if protocols == 'I32CFP_HELLO\n':
        file_out = socket.makefile('w')
        file_out.write('READY\n')
        file_out.flush()
        file_out.close()
        pass
    else:
        socket.close()
        print('Client is not speaking the same protocols.Closing connection.\n')
        return 

 def handle(self, socket, address):
     """
     If not a leader, a node will simply return a single item list pointing
     to the leader. Otherwise, it will add the host of the connected client
     to the cluster roster, broadcast to all nodes the new roster, and wait
     for keepalives. If no keepalive within timeout or the client drops, it
     drops it from the roster and broadcasts to all remaining nodes. 
     """
     self.logger.debug('New connection from %s:%s' % address)
     if not self.manager.is_leader:
         socket.send(json.dumps({'leader': self.manager.client.leader_address[0], 
             'port': self.manager.client.leader_address[1]}))
         socket.close()
         self.logger.debug("Redirected to %s:%s" % self.manager.client.leader_address)
     else:
         socket.send(self._cluster_message())
         sockfile = socket.makefile()
         name = sockfile.readline()
         if not name:
             return
         if name == '\n':
             name = address[0]
         else:
             name = name.strip()
         self._update(add={'host': name, 'socket': socket})
         # TODO: Use TCP keepalives
         timeout = self._client_timeout(socket)
         for line in util.line_protocol(sockfile, strip=False):
             timeout.kill()
             timeout = self._client_timeout(socket)
             socket.send('\n')
             self.logger.debug("Keepalive from %s:%s" % address)
         self.logger.debug("Client disconnected from %s:%s" % address)
         self._update(remove=name)

def wait_server_move(mode,column,socket):
    output = socket.makefile('w')
    output.write(mode+ ' ' + str(column)+'\n')
    output.flush()
    output.close()
    print('Waiting for server to move or update.')
    pass

 def __init__(self, server, socket):
     self.server = server
     self.socket = socket
     self.socket_file = socket.makefile('rb', 0)
     self.compression_enabled = False
     self.user_uuid = None
     self.user_name = None

def listen_on_socket(socket, *args):
    if socket is None:
        return
    command = ""
    file = socket.makefile('rwb')
    while True:
        try:
            data = file.read(1)
            if data == b'':
                sleep(0.001)
                continue
            else:
                data = data.decode('ascii')
            if data == AtHomeProtocol['end_of_communication']:
                print('Communication ended', file=sys.stderr)
                return
            if data != AtHomeProtocol['end_of_command']:
                command += data
            else:
                command = ""
                continue
            if command.endswith(AtHomeProtocol['end_of_line']):
                command = command[0:-2]
                if command in AtHomeCommands:
                    AtHomeCommands[command](file)
                else:
                    command = ""
                    raise NameError('[Unknown Command] %s' % command)
                command = ""
        except EOFError:
            file.close()
            socket.close()
            return
        except Exception as e:
            print('[Exception] %s' % e, file=sys.stderr)

 def __init__(self, socket):
     """Keeps track of the socket and the file posing as the socket"""
     self.socket = socket
     self.stream = socket.makefile()
     self.active = True
     self.editor = 'Emacs'
     self.name = 'Richard Stallman'

def mangodb(socket, address):
    socket.sendall('HELLO\r\n')
    client = socket.makefile()
    output = open(os.devnull, 'w')
    lock = threading.Lock()
    wait = threading.Condition(lock)
    while 1:
        line = client.readline()
        if not line:
            break
        cmd_bits = line.split(' ', 1)
        cmd = cmd_bits[0]
        if cmd == 'BYE':
            break
        if cmd == 'WAIT':
            wait.wait()
            continue
        if len(cmd_bits) > 1:
            lock.acquire(True)
            output.write(cmd_bits[1])
            if MANGODB_DURABLE:
                output.flush()
                os.fsync(output.fileno())
            data = '42' if MANGODB_EVENTUAL else \
                os.urandom(1024).encode('string-escape')
            lock.release()
            client.write('OK' + data + '\r\n')
        client.flush()

    def WrapAndSendPayload(cls, socket, payload):
        '''
        Send payload, true if success, false if failed
        '''
        try:
            # From SocketServer.py
            # wbufsize = 0, flush immediately
            wbufsize = -1
            # Convert
            socket_message = SocketMessage(payload)
            wfile = socket.makefile('wb', wbufsize)
            # Write the message
            wfile.write(struct.pack(fmt, socket_message.magic))
            # Need to send the packed version
            # print 'Sent ', socket_message.magic

            wfile.write(struct.pack(fmt, socket_message.payload_size))
            # print 'Sent ', socket_message.payload_size

            wfile.write(payload)
            # print 'Sent ', payload
            wfile.flush()
            wfile.close() # Close file object, not close the socket
            return True
        except Exception as e:
            _L.error('Fail to send message %s', e)
            return False

    def run(self):
        """Starts listening and accepting connection requests.

           This method is called when invoking `CallbackServer.start()`. A
           CallbackServer instance is created and started automatically when
           a :class:`JavaGateway <py4j.java_gateway.JavaGateway>` instance is
           created.
        """
        try:
            with self.lock:
                self.is_shutdown = False
            logger.info('Callback Server Starting')
            self.server_socket.listen(5)
            logger.info('Socket listening on {0}'.
                    format(smart_decode(self.server_socket.getsockname())))

            while not self.is_shutdown:
                socket, _ = self.server_socket.accept()
                input = socket.makefile('rb', 0)
                connection = CallbackConnection(self.pool, input, socket,
                        self.gateway_client)
                with self.lock:
                    if not self.is_shutdown:
                        self.connections.append(connection)
                        connection.start()
                    else:
                        connection.socket.shutdown(socket.SHUT_RDWR)
                        connection.socket.close()
        except Exception:
            if self.is_shutdown:
                logger.info('Error while waiting for a connection.')
            else:
                logger.exception('Error while waiting for a connection.')

def wait_player_move(mode, col,socket):
    output = socket.makefile('w')
    output.write(mode+ ' ' + str(col)+'\n')
    output.flush()
    output.close()
    print('waiting for player to move')
    pass

    def __init__(self, server, socket):
        """
Override BaseHTTPRequestHandler.__init__(): we need to be able
to have (potentially) multiple handler objects at a given time.

Inputs:
    server  -- server object to handle requests for 
    socket  -- socket connection 
        """

        ## Settings required by BaseHTTPRequestHandler
        self.rfile = socket.makefile("rb", -1)
        self.wfile = socket.makefile("wb", 0)
        self.connection = socket
        self.client_address = (server.host, server.port)

        self._server = server

def wait_server_move(mode,drop,socket):
    print('runing wait server move')
    output = socket.makefile('w')
    output.write(mode+ ' ' + str(drop)+'\n')
    output.flush()
    output.close()
    print('waiting for server to move')
    pass

 def run(self, room, program, password):
     socket = self.connect_to_service()
     socket_fd = socket.makefile()
     skip_hello(socket_fd)
     send("run", socket)
     send(password, socket)
     send(room, socket)
     send(program, socket)
     return readline(socket_fd)

 def get_room(self, room, password):
     socket = self.connect_to_service()
     socket_fd = socket.makefile()
     skip_hello(socket_fd)
     send("get_room", socket)
     send(password, socket)
     send(room, socket)
     line = readline(socket_fd)
     return line

	def get(self, flag_id, flag):
		socket = self.connect_to_checker()
		socket_fd = socket.makefile()
		send("get " + self.hostname + ":" + str(PORT) + " " + flag_id, socket)
		result = readline(socket_fd)
		if result == flag:
			service_ok()
		else:
			service_corrupt(message="Unexpected GET response: " + result)

def recv_lines(socket):
    lines = []
    file = socket.makefile()
    while True:
        line = file.readline().strip()
        if line == "":
            break
        lines.append(line)
    return lines

def recv_json(socket):
    if not hasattr(recv_json, 'files'):
        recv_json.files = {} # static variable

    if not socket in recv_json.files:
        recv_json.files[socket] = socket.makefile()

    data = recv_json.files[socket].readline()
    return json.loads(data.strip())

 def __init__(self, threadID, name, counter,state,socket,finishEvent):
     threading.Thread.__init__(self)
     self.threadID = threadID
     self.name = name
     self.counter = counter
     self.state=state
     self.socket=socket
     self.socket_file=socket.makefile()
     self.finished=finishEvent