File size: 1,988 Bytes
eb11f84 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 |
import indexHTML from '../html/index.html'
import fips from './usIps.json'
function getFIP():string{
return fips[Math.floor(Math.random() * fips.length)][0];
}
/** CORS */
function handleOptions(request: Request) {
const corsHeaders = {
// 'Access-Control-Allow-Origin': "*",
'Access-Control-Allow-Origin': request.headers.get("Origin") || "",
'Access-Control-Allow-Methods': 'GET,HEAD,POST,OPTIONS',
'Access-Control-Allow-Headers': request.headers.get('Access-Control-Request-Headers') || '',
'Access-Control-Max-Age': '86400',
'Access-Control-Allow-Credentials': 'true'
};
return new Response(null, { headers: corsHeaders });
}
async function notPorxy(req: Request):Promise<Response|undefined>{
const url = new URL(req.url);
if(url.pathname=="/"){
return new Response(
indexHTML
.replaceAll("${PHOST}",url.host)
.replaceAll("${FIP}",getFIP()),
{status:200,headers:{"content-type":"text/html; charset=utf-8"}});
}
return undefined;
}
export const bingPorxyWorker = async (req: Request,env:Env):Promise<Response>=>{
// console.log(req.url);
if(req.method=="OPTIONS"){
return handleOptions(req);
}
// 开始请求
const url = new URL(req.url);
const headers = new Headers(req.headers);
headers.delete("host");
headers.delete("x-forwarded-host")
const fip = headers.get("MCPXXX-FIP");
headers.delete("MCPXXX-FIP");
const toHost = headers.get("MCPXXX-TO-HOST");
headers.delete("MCPXXX-TO-HOST");
if(!fip){
return await notPorxy(req) || new Response("no MCPXXX-FIP",{status:503});
}
if(!toHost){
return await notPorxy(req) || new Response("no MCPXXX-TO-HOST",{status:503});
}
headers.set("X-forwarded-for",fip);
url.host = toHost;
return await fetch(url,{
headers:headers,
body:req.body,
method:req.method
}) as any;
}
|