src/proxy/auth.ts

import type { Request, Response, NextFunction } from "express";
import { config } from "../config";
import { proxyKeys } from './proxy-keys';

const PROXY_KEY = config.proxyKey;
const KEY_PASSWORD = config.keyPassword;

export const auth = (req: Request, res: Response, next: NextFunction) => {
  if (req.headers.authorization?.startsWith('Bearer ')) {
    req.authKey = req.headers.authorization.split(' ').pop();
    delete req.headers.authorization;
  }

  if (config.proxyCaptcha) {
    if (proxyKeys.check(req.authKey)) {
      next();
    } else {
      res.status(401).json({ error: "Unauthorized" });
    }
    return;
  }

  if (!PROXY_KEY || req.authKey === `${PROXY_KEY}`) {
    next();
  } else {
    res.status(401).json({ error: "Unauthorized" });
  }
};

export const authPassword = (req: Request, res: Response, next: NextFunction) => {
  if (!KEY_PASSWORD) {
    next();
    return;
  }
  if (req.query.password === KEY_PASSWORD) {
    next();
  } else {
    res.status(401).json({ error: "Unauthorized" });
  }
};