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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| import socket | ||
| import threading | ||
| import time | ||
| import signal | ||
| import sys | ||
| import hexdump | ||
|
|
||
| HOST = ("127.0.0.1", 10052) | ||
| LIST_PACKET = bytearray([0x44, 0x27, 0x74, 0x6F, 0x6F, 0x20, 0x6C, 0x61, 0x74, 0x65, 0x20, 0x66, 0x6F, 0x72, 0x20, 0x74, 0x68, 0x69, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x2E, 0x4E, 0x32, 0x32, 0x82, 0x32, 0x34, 0x20, 0x20]) | ||
|
|
||
| def udpchecksum(bytes): | ||
| """" | ||
| Prepend UDP checksum | ||
| JJ2 expects UDP datagrams to be perceded by a two-byte checksum - this method adds that checksum | ||
| Thanks to DJazz for the PHP reference implementation! | ||
| :param bytes: Bytearray to checksum | ||
| :return: Bytearray with checksum | ||
| """ | ||
| x = 79 | ||
| y = 79 | ||
| byte_count = len(bytes) | ||
| for i in range(2, byte_count): | ||
| x += bytes[i] | ||
| y += x | ||
|
|
||
| bytes[0] = x % 251 | ||
| bytes[1] = y % 251 | ||
|
|
||
| return bytes | ||
|
|
||
| def listworker(): | ||
| x = LIST_PACKET.copy() | ||
| x[0x23] = 1 | ||
| x[0x24] = 0x32 | ||
| input_bytes = "WALAD".encode("utf-8")[:32] | ||
| LIST_PACKET[0x2:0x2 + len(input_bytes)] = input_bytes | ||
|
|
||
| # sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | ||
| # sock.connect(("localhost", 10054)) | ||
| # sock.send(x) | ||
|
|
||
| def udpworker(): | ||
| log = lambda _: print(f"[UDP] {_}") | ||
|
|
||
| sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) | ||
| sock.bind(HOST) | ||
| log("open") | ||
|
|
||
| while True: | ||
| data, addr = sock.recvfrom(2048) | ||
| log(addr) | ||
| hexdump.hexdump(data) | ||
|
|
||
| # sock.sendto(bytearray([0x88, 0xAC, 0x04, 0x01, 00, 00, 00, 00, 0x82 ]), addr) | ||
| messageId = data[2] | ||
|
|
||
| if messageId == 0x05: | ||
| sock.sendto(bytearray.fromhex("98 A8 06 00 09 00 00 00 32 34 20 20 01 01 00 10 04 74 65 73 74 00 02 00 "), addr) | ||
| elif messageId == 0x03: | ||
| sock.sendto(bytearray.fromhex("D9 45 04 00 52 F2 0B 00 80 "), addr) | ||
| elif messageId == 0x09: | ||
| sock.sendto(bytearray.fromhex("08 3F 20 03 0C 00 05 00 "), addr) | ||
| sock.sendto(bytearray.fromhex("1D 0E 01 01 01 01 10 18 20 28 11 01 0A 0D 00 00 53 70 61 7A 20 45 6C 65 63 74 72 6F 00 "), addr) | ||
| sock.sendto(bytearray.fromhex("0B 3F 0C 00 05 00 00 00 00 81 01 "), addr) | ||
| def tcpworker(): | ||
| log = lambda _: print(f"[TCP] {_}") | ||
|
|
||
| sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | ||
| sock.bind(HOST) | ||
| sock.listen(1) | ||
| log("open") | ||
|
|
||
| while True: | ||
| client, addr = sock.accept() | ||
| log(addr) | ||
| data = client.recv(2048) | ||
| hexdump.hexdump(data) | ||
|
|
||
| messageId = data[2] | ||
|
|
||
| if messageId == 0xC0: | ||
| client.send(bytearray.fromhex("31 10 01 01 0B 63 61 73 74 6C 65 31 2E 6A 32 6C 2A 19 50 07 5F 97 89 FB 00 0A BC A9 03 7C 41 D8 9A 41 0C 00 05 00 01 64 D0 FF 6F 00 28 61 EA 0F 01 ")) | ||
| def main(): | ||
| signal.signal(signal.SIGINT, lambda signum, frame: sys.exit(0)) | ||
|
|
||
| lt = threading.Thread(target=listworker) | ||
| lt.daemon = True | ||
| lt.start() | ||
| ut = threading.Thread(target=udpworker) | ||
| ut.daemon = True | ||
| ut.start() | ||
| tt = threading.Thread(target=tcpworker) | ||
| tt.daemon = True | ||
| tt.start() | ||
|
|
||
| while True: | ||
| time.sleep(1) | ||
|
|
||
| if __name__ == "__main__": | ||
| main() |
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