const SYDNEY_ORIGIN = 'https://sydney.bing.com'; const KEEP_REQ_HEADERS = [ 'accept', 'accept-encoding', 'accept-language', 'connection', 'cookie', 'upgrade', 'user-agent', 'sec-websocket-extensions', 'sec-websocket-key', 'sec-websocket-version', 'x-request-id', 'content-length', 'content-type', 'access-control-request-headers', 'access-control-request-method', ]; const IP_RANGE = [ ['3.2.50.0', '3.5.31.255'], //192,000 ['3.12.0.0', '3.23.255.255'], //786,432 ['3.30.0.0', '3.33.34.255'], //205,568 ['3.40.0.0', '3.63.255.255'], //1,572,864 ['3.80.0.0', '3.95.255.255'], //1,048,576 ['3.100.0.0', '3.103.255.255'], //262,144 ['3.116.0.0', '3.119.255.255'], //262,144 ['3.128.0.0', '3.247.255.255'], //7,864,320 ]; /** * 随机整数 [min,max) * @param {number} min * @param {number} max * @returns */ const getRandomInt = (min, max) => Math.floor(Math.random() * (max - min)) + min; /** * ip 转 int * @param {string} ip * @returns */ const ipToInt = (ip) => { const ipArr = ip.split('.'); let result = 0; result += +ipArr[0] << 24; result += +ipArr[1] << 16; result += +ipArr[2] << 8; result += +ipArr[3]; return result; }; /** * int 转 ip * @param {number} intIP * @returns */ const intToIp = (intIP) => { return `${(intIP >> 24) & 255}.${(intIP >> 16) & 255}.${(intIP >> 8) & 255}.${intIP & 255}`; }; const getRandomIP = () => { const randIndex = getRandomInt(0, IP_RANGE.length); const startIp = IP_RANGE[randIndex][0]; const endIp = IP_RANGE[randIndex][1]; const startIPInt = ipToInt(startIp); const endIPInt = ipToInt(endIp); const randomInt = getRandomInt(startIPInt, endIPInt); const randomIP = intToIp(randomInt); return randomIP; }; export default { /** * fetch * @param {Request} request * @param {*} env * @param {*} ctx * @returns */ async fetch(request, env, ctx) { const currentUrl = new URL(request.url); const targetUrl = new URL(SYDNEY_ORIGIN + currentUrl.pathname + currentUrl.search); const newHeaders = new Headers(); request.headers.forEach((value, key) => { // console.log(`old : ${key} : ${value}`); if (KEEP_REQ_HEADERS.includes(key)) { newHeaders.set(key, value); } }); newHeaders.set('host', targetUrl.host); newHeaders.set('origin', targetUrl.origin); newHeaders.set('referer', 'https://www.bing.com/search?q=Bing+AI'); const randIP = getRandomIP(); // console.log('randIP : ', randIP); newHeaders.set('X-Forwarded-For', randIP); const oldUA = request.headers.get('user-agent'); const isMobile = oldUA.includes('Mobile') || oldUA.includes('Android'); if (isMobile) { newHeaders.set( 'user-agent', 'Mozilla/5.0 (iPhone; CPU iPhone OS 15_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.7 Mobile/15E148 Safari/605.1.15 BingSapphire/1.0.410427012' ); } else { newHeaders.set('user-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36 Edg/113.0.1774.35'); } // newHeaders.forEach((value, key) => console.log(`${key} : ${value}`)); const newReq = new Request(targetUrl, { method: request.method, headers: newHeaders, body: request.body, }); // console.log('request url : ', newReq.url); const res = await fetch(newReq); return res; }, };