124 lines
3.8 KiB
Python
124 lines
3.8 KiB
Python
import hashlib
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import json
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import logging
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from logging.handlers import TimedRotatingFileHandler
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from typing import Dict
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import coloredlogs
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from starlette.responses import PlainTextResponse
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from twisted.web.http import Request
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from core.config import CoreConfig
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from core.data import Data
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class ChimeServlet:
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def __init__(self, core_cfg: CoreConfig, cfg_folder: str) -> None:
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self.config = core_cfg
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self.config_folder = cfg_folder
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self.data = Data(core_cfg)
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self.logger = logging.getLogger("chimedb")
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if not hasattr(self.logger, "initted"):
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log_fmt_str = "[%(asctime)s] Chimedb | %(levelname)s | %(message)s"
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log_fmt = logging.Formatter(log_fmt_str)
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fileHandler = TimedRotatingFileHandler(
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"{0}/{1}.log".format(self.config.server.log_dir, "chimedb"),
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when="d",
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backupCount=10,
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)
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fileHandler.setFormatter(log_fmt)
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consoleHandler = logging.StreamHandler()
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consoleHandler.setFormatter(log_fmt)
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self.logger.addHandler(fileHandler)
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self.logger.addHandler(consoleHandler)
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self.logger.setLevel(self.config.aimedb.loglevel)
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coloredlogs.install(
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level=core_cfg.aimedb.loglevel, logger=self.logger, fmt=log_fmt_str
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)
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self.logger.initted = True
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if not core_cfg.chimedb.key:
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self.logger.error("!!!KEY NOT SET!!!")
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exit(1)
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self.logger.info("Serving")
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async def handle_qr_alive(self, request: Request):
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return PlainTextResponse("alive")
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async def handle_qr_lookup(self, request: Request) -> bytes:
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req = json.loads(await request.body())
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access_code = req["qrCode"][-20:]
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timestamp = req["timestamp"]
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try:
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userId = await self._lookup(access_code)
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data = json.dumps({
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"userID": userId,
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"errorID": 0,
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"timestamp": timestamp,
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"key": self._hash_key(userId, timestamp)
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})
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except Exception as e:
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self.logger.error(e.with_traceback(None))
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data = json.dumps({
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"userID": -1,
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"errorID": 1,
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"timestamp": timestamp,
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"key": self._hash_key(-1, timestamp)
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})
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return PlainTextResponse(data)
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def _hash_key(self, chip_id, timestamp):
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input_string = f"{chip_id}{timestamp}{self.config.chimedb.key}"
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hash_object = hashlib.sha256(input_string.encode('utf-8'))
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hex_dig = hash_object.hexdigest()
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formatted_hex = format(int(hex_dig, 16), '064x').upper()
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return formatted_hex
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async def _lookup(self, access_code):
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user_id = await self.data.card.get_user_id_from_card(access_code)
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self.logger.info(f"access_code {access_code} -> user_id {user_id}")
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if not user_id or user_id <= 0:
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user_id = await self._register(access_code)
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return user_id
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async def _register(self, access_code):
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user_id = -1
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if self.config.server.allow_user_registration:
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user_id = await self.data.user.create_user()
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if user_id is None:
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self.logger.error("Failed to register user!")
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user_id = -1
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else:
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card_id = await self.data.card.create_card(user_id, access_code)
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if card_id is None:
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self.logger.error("Failed to register card!")
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user_id = -1
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self.logger.info(
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f"Register access code {access_code} -> user_id {user_id}"
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)
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else:
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self.logger.info(f"Registration blocked!: access code {access_code}")
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return user_id
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