artemis/core/mucha.py

from typing import Dict, Any, Optional
import logging, coloredlogs
from logging.handlers import TimedRotatingFileHandler
from starlette.requests import Request
from datetime import datetime
from Crypto.Cipher import Blowfish
import pytz

from .config import CoreConfig
from .utils import Utils
from .title import TitleServlet

class MuchaServlet:
    mucha_registry: Dict[str, str] = {}
    def __init__(self, cfg: CoreConfig, cfg_dir: str) -> None:
        self.config = cfg
        self.config_dir = cfg_dir

        self.logger = logging.getLogger("mucha")
        log_fmt_str = "[%(asctime)s] Mucha | %(levelname)s | %(message)s"
        log_fmt = logging.Formatter(log_fmt_str)

        fileHandler = TimedRotatingFileHandler(
            "{0}/{1}.log".format(self.config.server.log_dir, "mucha"),
            when="d",
            backupCount=10,
        )
        fileHandler.setFormatter(log_fmt)

        consoleHandler = logging.StreamHandler()
        consoleHandler.setFormatter(log_fmt)

        self.logger.addHandler(fileHandler)
        self.logger.addHandler(consoleHandler)

        self.logger.setLevel(cfg.mucha.loglevel)
        coloredlogs.install(level=cfg.mucha.loglevel, logger=self.logger, fmt=log_fmt_str)

        for _, mod in TitleServlet.title_registry.items():
            if hasattr(mod, "get_mucha_info"):
                enabled, game_cds, netid_prefixes = mod.get_mucha_info(
                    self.config, self.config_dir
                )
                if enabled:
                    for x in range(len(game_cds)):
                        self.mucha_registry[game_cds[x]] = netid_prefixes[x]

        self.logger.info(f"Serving {len(self.mucha_registry)} games")

    def handle_boardauth(self, request: Request) -> bytes:
        req_dict = self.mucha_preprocess(request.content.getvalue())
        client_ip = Utils.get_ip_addr(request)

        if req_dict is None:
            self.logger.error(
                f"Error processing mucha request {request.content.getvalue()}"
            )
            return b"RESULTS=000"

        req = MuchaAuthRequest(req_dict)
        self.logger.info(f"Boardauth request from {client_ip} for {req.gameVer}")        
        self.logger.debug(f"Mucha request {vars(req)}")

        if req.gameCd not in self.mucha_registry:
            self.logger.warning(f"Unknown gameCd {req.gameCd}")
            return b"RESULTS=000"

        # TODO: Decrypt S/N
        b_key = b""
        for x in range(8):
            b_key += req.sendDate[(x - 1) & 7].encode()

        cipher = Blowfish.new(b_key, Blowfish.MODE_ECB)
        sn_decrypt = cipher.decrypt(bytes.fromhex(req.serialNum))
        self.logger.debug(f"Decrypt SN to {sn_decrypt.hex()}")

        resp = MuchaAuthResponse(
            f"{self.config.server.hostname}{':' + str(self.config.server.port) if self.config.server.is_develop else ''}"
        )

        self.logger.debug(f"Mucha response {vars(resp)}")

        return self.mucha_postprocess(vars(resp))

    def handle_updatecheck(self, request: Request) -> bytes:
        req_dict = self.mucha_preprocess(request.content.getvalue())
        client_ip = Utils.get_ip_addr(request)

        if req_dict is None:
            self.logger.error(
                f"Error processing mucha request {request.content.getvalue()}"
            )
            return b"RESULTS=000"

        req = MuchaUpdateRequest(req_dict)
        self.logger.info(f"Updatecheck request from {client_ip} for {req.gameVer}")        
        self.logger.debug(f"Mucha request {vars(req)}")

        if req.gameCd not in self.mucha_registry:
            self.logger.warning(f"Unknown gameCd {req.gameCd}")
            return b"RESULTS=000"

        resp = MuchaUpdateResponse(req.gameVer, f"{self.config.server.hostname}{':' + str(self.config.server.port) if self.config.server.is_develop else ''}")

        self.logger.debug(f"Mucha response {vars(resp)}")

        return self.mucha_postprocess(vars(resp))

    def handle_dlstate(self, request: Request) -> bytes:
        req_dict = self.mucha_preprocess(request.content.getvalue())
        client_ip = Utils.get_ip_addr(request)

        if req_dict is None:
            self.logger.error(
                f"Error processing mucha request {request.content.getvalue()}"
            )
            return b""
        
        req = MuchaDownloadStateRequest(req_dict)
        self.logger.info(f"DownloadState request from {client_ip} for {req.gameCd} -> {req.updateVer}")        
        self.logger.debug(f"request {vars(req)}")
        return b"RESULTS=001"

    def mucha_preprocess(self, data: bytes) -> Optional[Dict]:
        try:
            ret: Dict[str, Any] = {}

            for x in data.decode().split("&"):
                kvp = x.split("=")
                if len(kvp) == 2:
                    ret[kvp[0]] = kvp[1]

            return ret

        except Exception:
            self.logger.error(f"Error processing mucha request {data}")
            return None

    def mucha_postprocess(self, data: dict) -> Optional[bytes]:
        try:
            urlencode = "&".join(f"{k}={v}" for k, v in data.items())

            return urlencode.encode()

        except Exception:
            self.logger.error("Error processing mucha response")
            return None


class MuchaAuthRequest:
    def __init__(self, request: Dict) -> None:
        # gameCd + boardType + countryCd + version
        self.gameVer = request.get("gameVer", "")
        self.sendDate = request.get("sendDate", "")  # %Y%m%d
        self.serialNum = request.get("serialNum", "")
        self.gameCd = request.get("gameCd", "")
        self.boardType = request.get("boardType", "")
        self.boardId = request.get("boardId", "")
        self.mac = request.get("mac", "")
        self.placeId = request.get("placeId", "")
        self.storeRouterIp = request.get("storeRouterIp", "")
        self.countryCd = request.get("countryCd", "")
        self.useToken = request.get("useToken", "")
        self.allToken = request.get("allToken", "")


class MuchaAuthResponse:
    def __init__(self, mucha_url: str) -> None:
        self.RESULTS = "001"
        self.AUTH_INTERVAL = "86400"
        self.SERVER_TIME = datetime.strftime(datetime.now(), "%Y%m%d%H%M")
        self.UTC_SERVER_TIME = datetime.strftime(datetime.now(pytz.UTC), "%Y%m%d%H%M")

        self.CHARGE_URL = f"https://{mucha_url}/charge/"
        self.FILE_URL = f"https://{mucha_url}/file/"
        self.URL_1 = f"https://{mucha_url}/url1/"
        self.URL_2 = f"https://{mucha_url}/url2/"
        self.URL_3 = f"https://{mucha_url}/url3/"

        self.PLACE_ID = "JPN123"
        self.COUNTRY_CD = "JPN"
        self.SHOP_NAME = "TestShop!"
        self.SHOP_NICKNAME = "TestShop"
        self.AREA_0 = "008"
        self.AREA_1 = "009"
        self.AREA_2 = "010"
        self.AREA_3 = "011"
        self.AREA_FULL_0 = ""
        self.AREA_FULL_1 = ""
        self.AREA_FULL_2 = ""
        self.AREA_FULL_3 = ""

        self.SHOP_NAME_EN = "TestShop!"
        self.SHOP_NICKNAME_EN = "TestShop"
        self.AREA_0_EN = "008"
        self.AREA_1_EN = "009"
        self.AREA_2_EN = "010"
        self.AREA_3_EN = "011"
        self.AREA_FULL_0_EN = ""
        self.AREA_FULL_1_EN = ""
        self.AREA_FULL_2_EN = ""
        self.AREA_FULL_3_EN = ""

        self.PREFECTURE_ID = "1"
        self.EXPIRATION_DATE = "null"
        self.USE_TOKEN = "0"
        self.CONSUME_TOKEN = "0"
        self.DONGLE_FLG = "1"
        self.FORCE_BOOT = "0"


class MuchaUpdateRequest:
    def __init__(self, request: Dict) -> None:
        self.gameVer = request.get("gameVer", "")
        self.gameCd = request.get("gameCd", "")
        self.serialNum = request.get("serialNum", "")
        self.countryCd = request.get("countryCd", "")
        self.placeId = request.get("placeId", "")
        self.storeRouterIp = request.get("storeRouterIp", "")


class MuchaUpdateResponse:
    def __init__(self, game_ver: str, mucha_url: str) -> None:
        self.RESULTS = "001"        
        self.EXE_VER = game_ver

        self.UPDATE_VER_1 = game_ver
        self.UPDATE_URL_1 = f"http://{mucha_url}/updUrl1/"
        self.UPDATE_SIZE_1 = "20"

        self.CHECK_CRC_1 = "0000000000000000"
        self.CHECK_URL_1 = f"http://{mucha_url}/checkUrl/"
        self.CHECK_SIZE_1 = "20"

        self.INFO_SIZE_1 = "0"
        self.COM_SIZE_1 = "0"
        self.COM_TIME_1 = "0"
        self.LAN_INFO_SIZE_1 = "0"

        self.USER_ID = ""
        self.PASSWORD = ""

"""
RESULTS
EXE_VER

UPDATE_VER_%d
UPDATE_URL_%d
UPDATE_SIZE_%d

CHECK_CRC_%d
CHECK_URL_%d
CHECK_SIZE_%d

INFO_SIZE_1
COM_SIZE_1
COM_TIME_1
LAN_INFO_SIZE_1

USER_ID
PASSWORD
"""
class MuchaUpdateResponseStub:
    def __init__(self, game_ver: str) -> None:
        self.RESULTS = "001"
        self.UPDATE_VER_1 = game_ver

class MuchaDownloadStateRequest:
    def __init__(self, request: Dict) -> None:        
        self.gameCd = request.get("gameCd", "")
        self.updateVer = request.get("updateVer", "")
        self.serialNum = request.get("serialNum", "")
        self.fileSize = request.get("fileSize", "")
        self.compFileSize = request.get("compFileSize", "")
        self.boardId = request.get("boardId", "")
        self.placeId = request.get("placeId", "")
        self.storeRouterIp = request.get("storeRouterIp", "")

class MuchaDownloadErrorRequest:
    def __init__(self, request: Dict) -> None:        
        self.gameCd = request.get("gameCd", "")
        self.updateVer = request.get("updateVer", "")
        self.serialNum = request.get("serialNum", "")
        self.downloadUrl = request.get("downloadUrl", "")
        self.errCd = request.get("errCd", "")
        self.errMessage = request.get("errMessage", "")
        self.boardId = request.get("boardId", "")
        self.placeId = request.get("placeId", "")
        self.storeRouterIp = request.get("storeRouterIp", "")

class MuchaRegiAuthRequest:
    def __init__(self, request: Dict) -> None:        
        self.gameCd = request.get("gameCd", "")
        self.serialNum = request.get("serialNum", "") # Encrypted
        self.countryCd = request.get("countryCd", "")
        self.registrationCd = request.get("registrationCd", "")
        self.sendDate = request.get("sendDate", "")
        self.useToken = request.get("useToken", "")
        self.allToken = request.get("allToken", "")
        self.placeId = request.get("placeId", "")
        self.storeRouterIp = request.get("storeRouterIp", "")

class MuchaRegiAuthResponse:
    def __init__(self) -> None:
        self.RESULTS = "001" # 001 = success, 099, 098, 097 = fail, others = fail
        self.ALL_TOKEN = "0" # Encrypted
        self.ADD_TOKEN = "0" # Encrypted

class MuchaTokenStateRequest:
    def __init__(self, request: Dict) -> None:        
        self.gameCd = request.get("gameCd", "")
        self.serialNum = request.get("serialNum", "")
        self.countryCd = request.get("countryCd", "")
        self.useToken = request.get("useToken", "")
        self.allToken = request.get("allToken", "")
        self.placeId = request.get("placeId", "")
        self.storeRouterIp = request.get("storeRouterIp", "")

class MuchaTokenStateResponse:
    def __init__(self) -> None:
        self.RESULTS = "001"

class MuchaTokenMarginStateRequest:
    def __init__(self, request: Dict) -> None:        
        self.gameCd = request.get("gameCd", "")
        self.serialNum = request.get("serialNum", "")
        self.countryCd = request.get("countryCd", "")
        self.placeId = request.get("placeId", "")
        self.limitLowerToken = request.get("limitLowerToken", 0)
        self.limitUpperToken = request.get("limitUpperToken", 0)
        self.settlementMonth = request.get("settlementMonth", 0)

class MuchaTokenMarginStateResponse:
    def __init__(self) -> None:
        self.RESULTS = "001"
        self.LIMIT_LOWER_TOKEN = 0
        self.LIMIT_UPPER_TOKEN = 0
        self.LAST_SETTLEMENT_MONTH = 0
        self.LAST_LIMIT_LOWER_TOKEN = 0
        self.LAST_LIMIT_UPPER_TOKEN = 0
        self.SETTLEMENT_MONTH = 0