WorkerJS_CloudFlare_ImageBed/cloudflare-worker-js-api/index.js

addEventListener('fetch', event => {
  const request = event.request;
  if (request.method.toUpperCase() === "OPTIONS") {
    // 处理预检请求
    event.respondWith(handleOptions(request));
  } else {
    // 处理常规请求
    event.respondWith(handleRequest(request));
  }
});

// 处理常规请求
async function handleRequest(request) {
  // 从环境变量中获取API密码（作为Token使用）
  const apiToken = API_PASSWORD; // Cloudflare Worker中直接使用环境变量名

  // 如果API_TOKEN存在且非空，则进行Token验证
  if (apiToken) {
    // 获取请求头中的Authorization字段
    const authHeader = request.headers.get('Authorization');
    
    // 检查Authorization头是否存在且格式正确
    if (!authHeader || !authHeader.startsWith('Bearer ')) {
      return new Response('Unauthorized', { status: 401 });
    }

    // 提取Token并验证
    const token = authHeader.split(' ')[1];
    if (token !== apiToken) {
      return new Response('Unauthorized', { status: 401 });
    }
  }

  const url = new URL(request.url);

  let response;
  switch (url.pathname) {
    case '/upload/58img':
      response = await handle58imgRequest(request);
      break;
    case '/upload/tgphimg':
      response = await handleTgphimgRequest(request);
      break;
    default:
      response = new Response('Not Found', { status: 404 });
      break;
  }

  // 添加 CORS 头到响应中
  response.headers.set('Access-Control-Allow-Origin', '*');
  return response;
}
  
  // 处理预检请求
  function handleOptions(request) {
    // 确保预检请求的访问控制请求头在允许的范围内
    let headers = request.headers;
    if (headers.get('Origin') !== null &&
        headers.get('Access-Control-Request-Method') !== null &&
        headers.get('Access-Control-Request-Headers') !== null) {
      // 处理 CORS 预检请求
      let respHeaders = new Headers({
        'Access-Control-Allow-Origin': '*',
        'Access-Control-Allow-Methods': 'GET, POST, OPTIONS',
        'Access-Control-Allow-Headers': headers.get('Access-Control-Request-Headers'),
        'Access-Control-Max-Age': '86400', // 1 day
      });
  
      return new Response(null, { headers: respHeaders });
    } else {
      // 处理非预检请求
      return new Response(null, {
        headers: {
          'Allow': 'GET, POST, OPTIONS',
        },
      });
    }
  }


    // 此处省略了58img的处理逻辑，直接复制自 API_IMG_58img.js

    // 此处省略了tgphimg的处理逻辑，直接复制自 API_IMG_tgphimg.js

  
  // 复制自 API_IMG_58img.js 的辅助函数
  function bufferToBase64(buf) {
    var binary = '';
    var bytes = new Uint8Array(buf);
    var len = bytes.byteLength;
    for (var i = 0; i < len; i++) {
      binary += String.fromCharCode(bytes[i]);
    }
    // 使用 btoa 进行 Base64 编码
    return btoa(binary);
  }