74 lines
1.9 KiB
TypeScript
74 lines
1.9 KiB
TypeScript
|
import axios from "axios"
|
||
|
|
import {format} from "date-fns"
|
||
|
|
|
||
|
|
const CryptoJS = require("crypto-js")
|
||
|
|
|
||
|
|
class H5ST {
|
||
|
|
tk: string;
|
||
|
|
timestamp: string;
|
||
|
|
rd: string;
|
||
|
|
appId: string;
|
||
|
|
fp: string;
|
||
|
|
time: number;
|
||
|
|
ua: string
|
||
|
|
enc: string;
|
||
|
|
|
||
|
|
constructor(appId: string, ua: string, fp: string) {
|
||
|
|
this.appId = appId
|
||
|
|
this.ua = ua
|
||
|
|
this.fp = fp || this.__genFp()
|
||
|
|
}
|
||
|
|
|
||
|
|
__genFp() {
|
||
|
|
let e = "0123456789";
|
||
|
|
let a = 13;
|
||
|
|
let i = '';
|
||
|
|
for (; a--;)
|
||
|
|
i += e[Math.random() * e.length | 0];
|
||
|
|
return (i + Date.now()).slice(0, 16)
|
||
|
|
}
|
||
|
|
|
||
|
|
async __genAlgo() {
|
||
|
|
this.time = Date.now()
|
||
|
|
this.timestamp = format(this.time, "yyyyMMddHHmmssSSS")
|
||
|
|
let {data} = await axios.post(`https://cactus.jd.com/request_algo?g_ty=ajax`, {
|
||
|
|
'version': '3.0',
|
||
|
|
'fp': this.fp,
|
||
|
|
'appId': this.appId.toString(),
|
||
|
|
'timestamp': this.time,
|
||
|
|
'platform': 'web',
|
||
|
|
'expandParams': ''
|
||
|
|
}, {
|
||
|
|
headers: {
|
||
|
|
'Host': 'cactus.jd.com',
|
||
|
|
'accept': 'application/json',
|
||
|
|
'content-type': 'application/json',
|
||
|
|
'user-agent': this.ua,
|
||
|
|
}
|
||
|
|
})
|
||
|
|
this.tk = data.data.result.tk
|
||
|
|
this.rd = data.data.result.algo.match(/rd='(.*)'/)[1]
|
||
|
|
this.enc = data.data.result.algo.match(/algo\.(.*)\(/)[1]
|
||
|
|
}
|
||
|
|
|
||
|
|
__genKey(tk, fp, ts, ai, algo) {
|
||
|
|
let str = `${tk}${fp}${ts}${ai}${this.rd}`;
|
||
|
|
return algo[this.enc](str, tk)
|
||
|
|
}
|
||
|
|
|
||
|
|
__genH5st(body: object) {
|
||
|
|
let y = this.__genKey(this.tk, this.fp, this.timestamp, this.appId, CryptoJS).toString(CryptoJS.enc.Hex)
|
||
|
|
let s = ''
|
||
|
|
for (let i in body) {
|
||
|
|
i === 'body' ? s += `${i}:${CryptoJS.SHA256(body[i]).toString(CryptoJS.enc.Hex)}&` : s += `${i}:${body[i]}&`
|
||
|
|
}
|
||
|
|
s = s.slice(0, -1)
|
||
|
|
s = CryptoJS.HmacSHA256(s, y).toString(CryptoJS.enc.Hex)
|
||
|
|
return encodeURIComponent(`${this.timestamp};${this.fp};${this.appId.toString()};${this.tk};${s};3.0;${this.time.toString()}`)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
export {
|
||
|
|
H5ST
|
||
|
|
}
|