自定义Key转发

这里的代码中，在openai-api处填写官方api，前面填写自定义字符串即可设定不一样的api实现转发调用。如果不设置任何自定义api，也可以直接使用官方apikey进行调用。

const OPENAI_URL = 'https://api.openai.com';

const keyMap = {
  '自定义api名1': 'openai-api1',
  '自定义api名2': 'openai-api2',
  // ...更多映射关系...
};

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request))
})

async function handleRequest(request) {
  const url = new URL(request.url);
  url.host = OPENAI_URL.replace(/^https?:\/\//, '');

  const modifiedRequest = new Request(url.toString(), {
    headers: new Headers(request.headers),
    method: request.method,
    body: request.body,
    redirect: 'follow'
  });

  const authHeader = modifiedRequest.headers.get('Authorization');
  if (authHeader) {
    for (const customKey in keyMap) {
      if (authHeader.includes(customKey)) {
        modifiedRequest.headers.set('Authorization', authHeader.replace(customKey, keyMap[customKey]));
        break;
      }
    }
  }

  const response = await fetch(modifiedRequest);
  const modifiedResponse = new Response(response.body, response);

  // 添加允许跨域访问的响应头
  modifiedResponse.headers.set('Access-Control-Allow-Origin', '*');

  return modifiedResponse;
}

关键词屏蔽版本

该版本的可以设定无限个关键词，自定义设置，然后当请求调用是出现了这些关键词，会直接返回拒绝调用的消息，不消耗Toekn。

const OPENAI_URL = 'https://api.openai.com';

// 将敏感词汇放在一个数组中
const sensitiveWords = ['关键词1', '关键词2', '更多关键词'];

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request));
});

async function handleRequest(request) {
  const url = new URL(request.url);
  url.host = OPENAI_URL.replace(/^https?:\/\//, '');

  const requestBody = await request.clone().text();

  // 检查请求体中是否包含屏蔽词
  if (sensitiveWords.some(word => requestBody.includes(word))) {
    return new Response('请求包含敏感信息，终止会话。', { status: 400 });
  }

  const modifiedRequest = new Request(url.toString(), {
    headers: request.headers,
    method: request.method,
    body: request.body,
    redirect: 'follow'
  });

  const response = await fetch(modifiedRequest);
  const modifiedResponse = new Response(response.body, response);

  // 添加允许跨域访问的响应头
  modifiedResponse.headers.set('Access-Control-Allow-Origin', '*');

  return modifiedResponse;
}

Github地址：cloudflare-transfer-api