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BiliveHeart

B站直播心跳

目前为 2022-07-02 提交的版本，查看 最新版本。

此脚本不应直接安装，它是供其他脚本使用的外部库。如果你需要使用该库，请在脚本元属性加入：// @require https://update.cn-greasyfork.org/scripts/447321/1066416/BiliveHeart.js 

  1. // ==UserScript==
  2. // @name        BiliveHeart
  3. // @namespace   https://github.com/lzghzr/TampermonkeyJS
  4. // @version     0.0.6
  5. // @author      lzghzr
  6. // @description B站直播心跳
  7. // @include     /^https?:\/\/live\.bilibili\.com\/(?:blanc\/)?\d/
  8. // @require     https://greasyfork.org/scripts/441505-crypto-js4-1-1/code/crypto-js411.js?version=1028182
  9. // @license     MIT
  10. // @grant       none
  11. // ==/UserScript==
  12. class RoomHeart {
  13.     constructor(t) {
  14.         this.roomID = t
  15.     }
  16.     areaID;
  17.     parentID;
  18.     seq = 0;
  19.     roomID;
  20.     get id() {
  21.         return [this.parentID, this.areaID, this.seq, this.roomID]
  22.     }
  23.     buvid = this.getItem("LIVE_BUVID");
  24.     uuid = "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (t => {
  25.                 const e = 16 * Math.random() | 0;
  26.                 return ("x" === t ? e : 3 & e | 8).toString(16)
  27.             }));
  28.     device = [this.buvid, this.uuid];
  29.     get ts() {
  30.         return Date.now()
  31.     }
  32.     _patchData = {};
  33.     get patchData() {
  34.         const t = [];
  35.         for (const[e, i]of Object.entries(this._patchData))
  36.             t.push(i);
  37.         return t
  38.     }
  39.     get isPatch() {
  40.         return 0 === this.patchData.length ? 0 : 1
  41.     }
  42.     W = "undefined" == typeof unsafeWindow ? window : unsafeWindow;
  43.     ua = this.W && this.W.navigator ? this.W.navigator.userAgent : "";
  44.     csrf = this.getItem("bili_jct") || "";
  45.     nextInterval = Math.floor(5) + Math.floor(55 * Math.random());
  46.     heartBeatInterval;
  47.     secretKey;
  48.     secretRule;
  49.     timestamp;
  50.     lastHeartbeatTimestamp = Date.now();
  51.     get watchTimeFromLastReport() {
  52.         const t = Math.ceil(((new Date).getTime() - this.lastHeartbeatTimestamp) / 1e3);
  53.         return t < 0 ? 0 : t > this.heartBeatInterval ? this.heartBeatInterval : t
  54.     }
  55.     start() {
  56.         return this.getInfoByRoom()
  57.     }
  58.     doneFunc = function () {};
  59.     async getInfoByRoom() {
  60.         if (0 === this.roomID)
  61.             return !1;
  62.         const t = await fetch(`//api.live.bilibili.com/room/v1/Room/get_info?room_id=${this.roomID}&from=room`, {
  63.             mode: "cors",
  64.             credentials: "include"
  65.         }).then((t => t.json()));
  66.         return 0 === t.code && (({
  67.                 area_id: this.areaID,
  68.                 parent_area_id: this.parentID,
  69.                 room_id: this.roomID
  70.             } = t.data), 0 !== this.areaID && 0 !== this.parentID && (this.e(), !0))
  71.     }
  72.     async webHeartBeat() {
  73.         if (this.seq > 30)
  74.             return;
  75.         const t = `${this.nextInterval}|${this.roomID}|1|0`,
  76.         e = CryptoJS.enc.Utf8.parse(t),
  77.         i = CryptoJS.enc.Base64.stringify(e),
  78.         s = await fetch(`//live-trace.bilibili.com/xlive/rdata-interface/v1/heartbeat/webHeartBeat?hb=${encodeURIComponent(i)}&pf=web`, {
  79.             mode: "cors",
  80.             credentials: "include"
  81.         }).then((t => t.json()));
  82.         0 === s.code && (this.nextInterval = s.data.next_interval, setTimeout((() => this.webHeartBeat()), 1e3 * this.nextInterval))
  83.     }
  84.     async savePatchData() {
  85.         if (this.seq > 30)
  86.             return;
  87.         const t = {
  88.             id: JSON.stringify(this.id),
  89.             device: JSON.stringify(this.device),
  90.             ets: this.timestamp,
  91.             benchmark: this.secretKey,
  92.             time: this.watchTimeFromLastReport > this.heartBeatInterval ? this.heartBeatInterval : this.watchTimeFromLastReport,
  93.             ts: this.ts,
  94.             ua: this.ua
  95.         },
  96.         e = this.sypder(JSON.stringify(t), this.secretRule),
  97.         i = Object.assign({
  98.             s: e
  99.         }, t);
  100.         this._patchData[this.roomID] = i,
  101.         setTimeout((() => this.savePatchData()), 15e3)
  102.     }
  103.     async e() {
  104.         const t = {
  105.             id: JSON.stringify(this.id),
  106.             device: JSON.stringify(this.device),
  107.             ts: this.ts,
  108.             is_patch: 0,
  109.             heart_beat: "[]",
  110.             ua: this.ua
  111.         },
  112.         e = await fetch("//live-trace.bilibili.com/xlive/data-interface/v1/x25Kn/E", {
  113.             headers: {
  114.                 "content-type": "application/x-www-form-urlencoded"
  115.             },
  116.             method: "POST",
  117.             body: `${this.json2str(t)}&csrf_token=${this.csrf}&csrf=${this.csrf}&visit_id=`,
  118.             mode: "cors",
  119.             credentials: "include"
  120.         }).then((t => t.json()));
  121.         0 === e.code && (this.seq += 1, ({
  122.                 heartbeat_interval: this.heartBeatInterval,
  123.                 secret_key: this.secretKey,
  124.                 secret_rule: this.secretRule,
  125.                 timestamp: this.timestamp
  126.             } = e.data), setTimeout((() => this.x()), 1e3 * this.heartBeatInterval))
  127.     }
  128.     async x() {
  129.         if (this.seq > 30)
  130.             return this.doneFunc();
  131.         const t = {
  132.             id: JSON.stringify(this.id),
  133.             device: JSON.stringify(this.device),
  134.             ets: this.timestamp,
  135.             benchmark: this.secretKey,
  136.             time: this.heartBeatInterval,
  137.             ts: this.ts,
  138.             ua: this.ua
  139.         },
  140.         e = this.sypder(JSON.stringify(t), this.secretRule),
  141.         i = Object.assign({
  142.             s: e
  143.         }, t);
  144.         this._patchData[this.roomID] = i,
  145.         this.lastHeartbeatTimestamp = Date.now();
  146.         const s = await fetch("//live-trace.bilibili.com/xlive/data-interface/v1/x25Kn/X", {
  147.             headers: {
  148.                 "content-type": "application/x-www-form-urlencoded"
  149.             },
  150.             method: "POST",
  151.             body: `${this.json2str(i)}&csrf_token=${this.csrf}&csrf=${this.csrf}&visit_id=`,
  152.             mode: "cors",
  153.             credentials: "include"
  154.         }).then((t => t.json()));
  155.         0 === s.code && (this.seq += 1, ({
  156.                 heartbeat_interval: this.heartBeatInterval,
  157.                 secret_key: this.secretKey,
  158.                 secret_rule: this.secretRule,
  159.                 timestamp: this.timestamp
  160.             } = s.data), setTimeout((() => this.x()), 1e3 * this.heartBeatInterval))
  161.     }
  162.     sypder(t, e) {
  163.         const i = JSON.parse(t),
  164.         [s, a, r, n] = JSON.parse(i.id),
  165.         [o, c] = JSON.parse(i.device),
  166.         h = i.benchmark,
  167.         m = {
  168.             platform: "web",
  169.             parent_id: s,
  170.             area_id: a,
  171.             seq_id: r,
  172.             room_id: n,
  173.             buvid: o,
  174.             uuid: c,
  175.             ets: i.ets,
  176.             time: i.time,
  177.             ts: i.ts
  178.         };
  179.         let d = JSON.stringify(m);
  180.         for (const t of e)
  181.             switch (t) {
  182.             case 0:
  183.                 d = CryptoJS.HmacMD5(d, h).toString(CryptoJS.enc.Hex);
  184.                 break;
  185.             case 1:
  186.                 d = CryptoJS.HmacSHA1(d, h).toString(CryptoJS.enc.Hex);
  187.                 break;
  188.             case 2:
  189.                 d = CryptoJS.HmacSHA256(d, h).toString(CryptoJS.enc.Hex);
  190.                 break;
  191.             case 3:
  192.                 d = CryptoJS.HmacSHA224(d, h).toString(CryptoJS.enc.Hex);
  193.                 break;
  194.             case 4:
  195.                 d = CryptoJS.HmacSHA512(d, h).toString(CryptoJS.enc.Hex);
  196.                 break;
  197.             case 5:
  198.                 d = CryptoJS.HmacSHA384(d, h).toString(CryptoJS.enc.Hex);
  199.                 break;
  200.             default:
  201.                 break
  202.             }
  203.         return d
  204.     }
  205.     getItem(t) {
  206.         return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(t).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || ""
  207.     }
  208.     json2str(t) {
  209.         let e = "";
  210.         for (const i in t)
  211.             e += `${i}=${encodeURIComponent(t[i])}&`;
  212.         return e.slice(0, -1)
  213.     }
  214. }