|
| 1 | +const SYDNEY_ORIGIN = 'https://sydney.bing.com'; |
| 2 | +const KEEP_REQ_HEADERS = [ |
| 3 | + 'accept', |
| 4 | + 'accept-encoding', |
| 5 | + 'accept-language', |
| 6 | + 'connection', |
| 7 | + 'cookie', |
| 8 | + 'upgrade', |
| 9 | + 'user-agent', |
| 10 | + 'sec-websocket-extensions', |
| 11 | + 'sec-websocket-key', |
| 12 | + 'sec-websocket-version', |
| 13 | + 'x-request-id', |
| 14 | + 'content-length', |
| 15 | + 'content-type', |
| 16 | + 'access-control-request-headers', |
| 17 | + 'access-control-request-method', |
| 18 | +]; |
| 19 | +const IP_RANGE = [ |
| 20 | + ['3.2.50.0', '3.5.31.255'], //192,000 |
| 21 | + ['3.12.0.0', '3.23.255.255'], //786,432 |
| 22 | + ['3.30.0.0', '3.33.34.255'], //205,568 |
| 23 | + ['3.40.0.0', '3.63.255.255'], //1,572,864 |
| 24 | + ['3.80.0.0', '3.95.255.255'], //1,048,576 |
| 25 | + ['3.100.0.0', '3.103.255.255'], //262,144 |
| 26 | + ['3.116.0.0', '3.119.255.255'], //262,144 |
| 27 | + ['3.128.0.0', '3.247.255.255'], //7,864,320 |
| 28 | +]; |
| 29 | + |
| 30 | +/** |
| 31 | + * 随机整数 [min,max) |
| 32 | + * @param {number} min |
| 33 | + * @param {number} max |
| 34 | + * @returns |
| 35 | + */ |
| 36 | +const getRandomInt = (min, max) => Math.floor(Math.random() * (max - min)) + min; |
| 37 | + |
| 38 | +/** |
| 39 | + * ip 转 int |
| 40 | + * @param {string} ip |
| 41 | + * @returns |
| 42 | + */ |
| 43 | +const ipToInt = (ip) => { |
| 44 | + const ipArr = ip.split('.'); |
| 45 | + let result = 0; |
| 46 | + result += +ipArr[0] << 24; |
| 47 | + result += +ipArr[1] << 16; |
| 48 | + result += +ipArr[2] << 8; |
| 49 | + result += +ipArr[3]; |
| 50 | + return result; |
| 51 | +}; |
| 52 | + |
| 53 | +/** |
| 54 | + * int 转 ip |
| 55 | + * @param {number} intIP |
| 56 | + * @returns |
| 57 | + */ |
| 58 | +const intToIp = (intIP) => { |
| 59 | + return `${(intIP >> 24) & 255}.${(intIP >> 16) & 255}.${(intIP >> 8) & 255}.${intIP & 255}`; |
| 60 | +}; |
| 61 | + |
| 62 | +const getRandomIP = () => { |
| 63 | + const randIndex = getRandomInt(0, IP_RANGE.length); |
| 64 | + const startIp = IP_RANGE[randIndex][0]; |
| 65 | + const endIp = IP_RANGE[randIndex][1]; |
| 66 | + const startIPInt = ipToInt(startIp); |
| 67 | + const endIPInt = ipToInt(endIp); |
| 68 | + const randomInt = getRandomInt(startIPInt, endIPInt); |
| 69 | + const randomIP = intToIp(randomInt); |
| 70 | + return randomIP; |
| 71 | +}; |
| 72 | + |
| 73 | +export default { |
| 74 | + /** |
| 75 | + * fetch |
| 76 | + * @param {Request} request |
| 77 | + * @param {*} env |
| 78 | + * @param {*} ctx |
| 79 | + * @returns |
| 80 | + */ |
| 81 | + async fetch(request, env, ctx) { |
| 82 | + const currentUrl = new URL(request.url); |
| 83 | + const targetUrl = new URL(SYDNEY_ORIGIN + currentUrl.pathname + currentUrl.search); |
| 84 | + |
| 85 | + const newHeaders = new Headers(); |
| 86 | + request.headers.forEach((value, key) => { |
| 87 | + // console.log(`old : ${key} : ${value}`); |
| 88 | + if (KEEP_REQ_HEADERS.includes(key)) { |
| 89 | + newHeaders.set(key, value); |
| 90 | + } |
| 91 | + }); |
| 92 | + newHeaders.set('host', targetUrl.host); |
| 93 | + newHeaders.set('origin', targetUrl.origin); |
| 94 | + newHeaders.set('referer', 'https://www.bing.com/search?q=Bing+AI'); |
| 95 | + const randIP = getRandomIP(); |
| 96 | + // console.log('randIP : ', randIP); |
| 97 | + newHeaders.set('X-Forwarded-For', randIP); |
| 98 | + const oldUA = request.headers.get('user-agent'); |
| 99 | + const isMobile = oldUA.includes('Mobile') || oldUA.includes('Android'); |
| 100 | + if (isMobile) { |
| 101 | + newHeaders.set( |
| 102 | + 'user-agent', |
| 103 | + 'Mozilla/5.0 (iPhone; CPU iPhone OS 15_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.7 Mobile/15E148 Safari/605.1.15 BingSapphire/1.0.410427012' |
| 104 | + ); |
| 105 | + } else { |
| 106 | + newHeaders.set('user-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36 Edg/113.0.1774.35'); |
| 107 | + } |
| 108 | + |
| 109 | + // newHeaders.forEach((value, key) => console.log(`${key} : ${value}`)); |
| 110 | + const newReq = new Request(targetUrl, { |
| 111 | + method: request.method, |
| 112 | + headers: newHeaders, |
| 113 | + body: request.body, |
| 114 | + }); |
| 115 | + // console.log('request url : ', newReq.url); |
| 116 | + const res = await fetch(newReq); |
| 117 | + return res; |
| 118 | + // const newRes = new Response(res.body, res); |
| 119 | + // newRes.headers.set('access-control-allow-origin', '*'); |
| 120 | + // newRes.headers.set('access-control-allow-methods', '*'); |
| 121 | + // newRes.headers.set('access-control-allow-headers', '*'); |
| 122 | + // return newRes; |
| 123 | + }, |
| 124 | +}; |
0 commit comments