#!/usr/bin/env python import getpass import sys import re from optparse import OptionParser from minecraft import authentication from minecraft.exceptions import YggdrasilError from minecraft.networking.connection import Connection from minecraft.networking.packets import Packet, clientbound, serverbound def get_options(): parser = OptionParser() parser.add_option("-u", "--username", dest="username", default=None, help="username to log in with") parser.add_option("-p", "--password", dest="password", default=None, help="password to log in with") parser.add_option("-s", "--server", dest="server", default=None, help="server host or host:port " "(enclose IPv6 addresses in square brackets)") parser.add_option("-o", "--offline", dest="offline", action="store_true", help="connect to a server in offline mode " "(no password required)") parser.add_option("-d", "--dump-packets", dest="dump_packets", action="store_true", help="print sent and received packets to standard error") parser.add_option("-v", "--dump-unknown-packets", dest="dump_unknown", action="store_true", help="include unknown packets in --dump-packets output") (options, args) = parser.parse_args() if not options.username: options.username = input("Enter your username: ") if not options.password and not options.offline: options.password = getpass.getpass("Enter your password (leave " "blank for offline mode): ") options.offline = options.offline or (options.password == "") if not options.server: options.server = input("Enter server host or host:port " "(enclose IPv6 addresses in square brackets): ") # Try to split out port and address match = re.match(r"((?P[^\[\]:]+)|\[(?P[^\[\]]+)\])" r"(:(?P\d+))?$", options.server) if match is None: raise ValueError("Invalid server address: '%s'." % options.server) options.address = match.group("host") or match.group("addr") options.port = int(match.group("port") or 25565) return options def main(): options = get_options() if options.offline: print("Connecting in offline mode...") connection = Connection( options.address, options.port, username=options.username) else: auth_token = authentication.AuthenticationToken() try: auth_token.authenticate(options.username, options.password) except YggdrasilError as e: print(e) sys.exit() print("Logged in as %s..." % auth_token.username) connection = Connection( options.address, options.port, auth_token=auth_token) if options.dump_packets: def print_incoming(packet): if type(packet) is Packet: # This is a direct instance of the base Packet type, meaning # that it is a packet of unknown type, so we do not print it # unless explicitly requested by the user. if options.dump_unknown: print('--> [unknown packet] %s' % packet, file=sys.stderr) else: print('--> %s' % packet, file=sys.stderr) def print_outgoing(packet): print('<-- %s' % packet, file=sys.stderr) connection.register_packet_listener( print_incoming, Packet, early=True) connection.register_packet_listener( print_outgoing, Packet, outgoing=True) def handle_join_game(join_game_packet): print('Connected.') connection.register_packet_listener( handle_join_game, clientbound.play.JoinGamePacket) def print_chat(chat_packet): print("Message (%s): %s" % ( chat_packet.field_string('position'), chat_packet.json_data)) connection.register_packet_listener( print_chat, clientbound.play.ChatMessagePacket) connection.connect() while True: try: text = input() if text == "/respawn": print("respawning...") packet = serverbound.play.ClientStatusPacket() packet.action_id = serverbound.play.ClientStatusPacket.RESPAWN connection.write_packet(packet) else: packet = serverbound.play.ChatPacket() packet.message = text connection.write_packet(packet) except KeyboardInterrupt: print("Bye!") sys.exit() if __name__ == "__main__": main()