refactor: remove api.js file containing API request handling logic

functions/api.js

@@ -1,74 +0,0 @@
-export async function onRequest(context) {
-  const { request, env } = context;
-  
-  // 获取原始URL并解析路径
-  const url = new URL(request.url);
-  const path = url.pathname;
-  
-  // 确保环境变量存在
-  if (!env.API_BASEURL) {
-    return new Response('API_BASEURL environment variable is not set', { status: 500 });
-  }
-  
-  // 处理 WebSocket 升级请求
-  if (request.headers.get('Upgrade') === 'websocket') {
-    const apiBaseUrl = new URL(env.API_BASEURL);
-    // 将 http/https 转换为 ws/wss
-    const wsBaseUrl = `${apiBaseUrl.protocol === 'https:' ? 'wss:' : 'ws:'}//${apiBaseUrl.host}`;
-    const targetURL = `${wsBaseUrl}${path}${url.search}`;
-    
-    return fetch(new Request(targetURL, {
-      method: request.method,
-      headers: request.headers,
-      body: request.body
-    }));
-  }
-  
-  // 处理普通 HTTP 请求
-  const apiBaseUrl = new URL(env.API_BASEURL);
-  const targetURL = new URL(path, apiBaseUrl.origin);
-  targetURL.search = url.search;
-  
-  // 创建新的请求头，移除可能导致问题的头部
-  const newHeaders = new Headers(request.headers);
-  newHeaders.delete('host');
-  newHeaders.delete('cf-connecting-ip');
-  newHeaders.delete('cf-ipcountry');
-  
-  // 创建新的请求
-  const newRequest = new Request(targetURL.toString(), {
-    method: request.method,
-    headers: newHeaders,
-    body: request.body,
-  });
-  
-  try {
-    // 转发请求到目标服务器
-    const response = await fetch(newRequest);
-    
-    // 创建新的响应头，设置 CORS 和其他必要的头部
-    const newResponse = new Response(response.body, {
-      status: response.status,
-      statusText: response.statusText,
-    });
-    
-    // 复制所有响应头
-    for (const [key, value] of response.headers.entries()) {
-      newResponse.headers.set(key, value);
-    }
-    
-    // 设置 CORS 头
-    newResponse.headers.set('Access-Control-Allow-Origin', '*');
-    newResponse.headers.set('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
-    newResponse.headers.set('Access-Control-Allow-Headers', '*');
-    
-    return newResponse;
-  } catch (error) {
-    return new Response(`Proxy error: ${error.message}`, { 
-      status: 500,
-      headers: {
-        'Access-Control-Allow-Origin': '*'
-      }
-    });
-  }
-}

functions/api/[[default]].js

@@ -0,0 +1,64 @@
+// 处理所有 HTTP 方法
+export const onRequest = async (context) => {
+  const { request, env } = context;
+  
+  // 确保环境变量存在
+  if (!env.API_BASEURL) {
+    return new Response('API_BASEURL environment variable is not set', { status: 500 });
+  }
+
+  try {
+    // 构建目标URL
+    const url = new URL(request.url);
+    const apiBaseUrl = env.API_BASEURL.endsWith('/') ? env.API_BASEURL.slice(0, -1) : env.API_BASEURL;
+    const targetURL = apiBaseUrl + url.pathname + url.search;
+
+    // 处理 WebSocket 升级请求
+    if (request.headers.get('Upgrade') === 'websocket') {
+      const wsURL = targetURL.replace(/^http/, 'ws');
+      return fetch(wsURL, request);
+    }
+
+    // 创建新的请求
+    const newRequest = new Request(targetURL, {
+      method: request.method,
+      headers: request.headers,
+      body: request.body,
+      redirect: 'follow',
+    });
+
+    // 发送请求到目标服务器
+    const response = await fetch(newRequest);
+
+    // 创建新的响应
+    const newResponse = new Response(response.body, response);
+    
+    // 设置 CORS 头
+    newResponse.headers.set('Access-Control-Allow-Origin', '*');
+    newResponse.headers.set('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
+    newResponse.headers.set('Access-Control-Allow-Headers', '*');
+    
+    return newResponse;
+
+  } catch (error) {
+    return new Response(`Proxy error: ${error.message}`, { 
+      status: 500,
+      headers: {
+        'Access-Control-Allow-Origin': '*'
+      }
+    });
+  }
+}
+
+// 处理 OPTIONS 请求
+export const onRequestOptions = async (context) => {
+  return new Response(null, {
+    status: 204,
+    headers: {
+      'Access-Control-Allow-Origin': '*',
+      'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
+      'Access-Control-Allow-Headers': '*',
+      'Access-Control-Max-Age': '86400',
+    },
+  });
+}