async function handleRequest(request) {

// 创建一个空对象来存储请求头数据
  const headers = {}

  // 遍历请求头数据并将其存储在对象中
  for (const [name, value] of request.headers.entries()) {
    headers[name] = value
  }

  const url = new URL(request.url);
  const path = url.pathname;

  // 用来返回的数据
  let returnData = {}
  returnData["ip"] = headers["EO-Connecting-IP"];
  returnData["user-agent"] = headers["User-Agent"];
  if(returnData["user-agent"] === undefined){
    returnData["user-agent"] = headers["user-agent"];
  }
  returnData["geo"] = request.eo.geo;
  returnData["version"] = "0.4";

  if(path === "/"){
    const returnDataStr = "/\t\t\tHelp\n/info\t\t\tALL Info(JSON)\n/ip\t\t\tIP(String)\n/ip/json\t\tIP(Json)\n/ua\t\t\tUser-Agent Data\n/country\t\tCountry";
    return new Response(returnDataStr, {status: 200})

  } else if(path === "/country"){
    const country = returnData["geo"]?.countryCodeAlpha2 || "Country not available";
    return new Response(country, {status: 200})

  } else if(path === "/ua"){
    const returnDataStr = returnData["user-agent"];
    return new Response(returnDataStr, {status: 200})
  }else if(path === "/info"){
    const returnDataStr = JSON.stringify(returnData);
    return new Response(returnDataStr, {status: 200,headers: {'Content-Type':'application/json'}})
  }else if(path === "/ip/json"){
    let returnDataTemp ={};
    returnDataTemp["ip"] = returnData["ip"];
    returnDataTemp["geo"] = returnData["geo"];
    const returnDataStr = JSON.stringify(returnDataTemp)
    return new Response(returnDataStr, {status: 200,headers: {'Content-Type':'application/json'}})
  }else if(path === "/ip"){
    const returnDataStr = returnData["ip"];
    return new Response(returnDataStr, {status: 200})
  }else if(path === "/favicon.ico"){
    // 浏览器图标响应200
    return new Response("", {status: 200})
  }else{
    return new Response("404", {status: 404})
  }
}

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