simple_diablo2_socket_bot.py

import socket
from struct import *


def read_string(buffer):
    s = ''
    i = 0
    while 1:
        c = buffer[i]
        if c == 0:
            return s, (i+1)
        s += chr(c)
        i+=1
    return '', 0


def read_headers(buffer):
    (ff,id,size)=unpack_from('<BBH', buffer)
    return (ff,id,size)



def read_sid_auth_info(buffer):
    (logon_type, server_token, udp_value, mpq_filetime) = unpack_from('<IIIQ', buffer)
    buffer=buffer[calcsize('<IIIQ'):]

    (mpq_filename, offset) = read_string(buffer)
    (valuestring, offset) = read_string(buffer[offset:])

    return logon_type, server_token, udp_value, mpq_filetime, mpq_filename, valuestring


def file_transfer_protocol_v1(buffer):
    (request_length,protocol_version,platform_id,product_id,banner_id,banner_file_extension,start_position_in_file,filetime_tmp,filename) \
    = unpack_from('<HHIIIIIQ', buffer)

    buffer=buffer[calcsize('<HHIIIIIQ'):]

    (filename, offset) = read_string(buffer[offset:])

    return request_length,protocol_version,platform_id,product_id,banner_id,banner_file_extension,start_position_in_file,filetime_tmp,filename

  
  
  
  (request_length,protocol_version,platform_id,product_id,banner_id,banner_file_extension,start_position_in_file,filetime_tmp,filename) \
= file_transfer_protocol_v1("ff 50 65 00 00 00 00 00 96 66 4f 5a 0a 0c 00 00"
   "00 e4 88 77 e9 2b d2 01 c4 35 51 5a 2e 6d 70 71"
   "00 41 3d 33 38 34 35 35 38 31 36 33 34 20 42 3d"
   "38 38 30 38 32 33 35 38 30 20 43 3d 31 33 36 33"
   "39 33 37 31 30 33 20 34 20 41 3d 41 2d 53 20 42"
   "3d 42 2d 43 20 43 3d 43 2d 41 20 41 3d 41 2d 42"
   "00")