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sao: parse header. add crypt

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Hay1tsme
2023-11-09 13:16:32 -05:00
parent 8560c05928
commit b0ebcaf0cf
2 changed files with 103 additions and 82 deletions
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23
titles/sao/index.py
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@ -87,17 +87,30 @@ class SaoServlet(BaseServlet):
endpoint = matchers.get('endpoint', '')
request.responseHeaders.addRawHeader(b"content-type", b"text/html; charset=utf-8")
sao_request = request.content.getvalue().hex()
req_raw = request.content.read()
sao_request = req_raw.hex()
req_header = SaoRequestHeader(req_raw)
cmd_str = f"{req_header.cmd:04x}"
if self.game_cfg.crypt.enable:
iv = req_raw[30:38]
cipher = Blowfish.new(self.game_cfg.crypt.key, Blowfish.MODE_CBC, iv)
crypt_data = req_raw[38:]
req_data = cipher.decrypt(crypt_data)
else:
req_data = req_raw[30:]
handler = getattr(self.base, f"handle_{sao_request[:4]}", None)
handler = getattr(self.base, f"handle_{cmd_str}", None)
if handler is None:
self.logger.info(f"Generic Handler for {endpoint} - {sao_request[:4]}")
self.logger.info(f"Generic Handler for {endpoint} - {cmd_str}")
self.logger.debug(f"Request: {request.content.getvalue().hex()}")
resp = SaoNoopResponse(int.from_bytes(bytes.fromhex(sao_request[:4]), "big")+1)
resp = SaoNoopResponse(req_header.cmd + 1)
self.logger.debug(f"Response: {resp.make().hex()}")
return resp.make()
self.logger.info(f"Handler {endpoint} - {sao_request[:4]} request")
self.logger.info(f"Handler {endpoint} - {cmd_str} request")
self.logger.debug(f"Request: {request.content.getvalue().hex()}")
resp = handler(sao_request)
self.logger.debug(f"Response: {resp.hex()}")