sync

utils/V3.ts

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