51 lines
1.7 KiB
TypeScript
51 lines
1.7 KiB
TypeScript
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import axios from "axios";
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import {format} from "date-fns";
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const CryptoJS = require('crypto-js')
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let fp: string = '', tk: string = '', genKey: any = null
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async function requestAlgo(appId: string, USER_AGENT: string = 'jdpingou;') {
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function generateFp() {
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let e = "0123456789";
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let a = 13;
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let i = '';
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for (; a--;)
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i += e[Math.random() * e.length | 0];
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return (i + Date.now()).slice(0, 16)
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}
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fp = generateFp()
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let {data} = await axios.post(`https://cactus.jd.com/request_algo?g_ty=ajax`, `{"version":"3.0","fp":"${fp}","appId":"${appId}","timestamp":${Date.now()},"platform":"web","expandParams":""}`, {
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headers: {
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'Accept': 'application/json',
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'Content-Type': 'application/json',
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"Accept-Encoding": "gzip, deflate, br",
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"Accept-Language": "zh-CN,zh;q=0.9,en;q=0.8",
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'host': 'cactus.jd.com',
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'Referer': 'https://cactus.jd.com',
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'User-Agent': USER_AGENT
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}
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})
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tk = data.data.result.tk;
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genKey = new Function(`return ${data.data.result.algo}`)();
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return {fp, tk, genKey}
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}
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function geth5st(t: { key: string, value: string } [], appId: string) {
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let a = ''
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t.forEach(({key, value}) => {
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a += `${key}:${value}&`
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})
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a = a.slice(0, -1)
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let time = Date.now()
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let timestamp = format(time, "yyyyMMddHHmmssSSS");
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let hash1 = genKey(tk, fp.toString(), timestamp.toString(), appId.toString(), CryptoJS).toString(CryptoJS.enc.Hex);
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const hash2 = CryptoJS.HmacSHA256(a, hash1).toString();
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return encodeURIComponent(["".concat(timestamp.toString()), "".concat(fp.toString()), "".concat(appId.toString()), "".concat(tk), "".concat(hash2), "3.0", "".concat(time.toString())].join(";"))
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}
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export {
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requestAlgo,
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geth5st,
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}
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