124 lines
3.5 KiB
JavaScript
124 lines
3.5 KiB
JavaScript
const config = require('@/config').value;
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const md5 = require('@/utils/md5');
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const CryptoJS = require('crypto-js');
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function iframe(aid, page, bvid) {
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return `<iframe src="https://player.bilibili.com/player.html?${bvid ? `bvid=${bvid}` : `aid=${aid}`}${
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page ? `&page=${page}` : ''
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}&high_quality=1&autoplay=0" width="650" height="477" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"></iframe>`;
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}
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// a
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function randomHexStr(length) {
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let string = '';
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for (let r = 0; r < length; r++) {
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string += dec2HexUpper(16 * Math.random());
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}
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return padStringWithZeros(string, length);
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}
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// o
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function dec2HexUpper(e) {
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return Math.ceil(e).toString(16).toUpperCase();
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}
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// s
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function padStringWithZeros(string, length) {
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let padding = '';
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if (string.length < length) {
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for (let n = 0; n < length - string.length; n++) {
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padding += '0';
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}
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}
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return padding + string;
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}
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function lsid() {
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const e = Date.now().toString(16).toUpperCase();
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const lsid = randomHexStr(8) + '_' + e;
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return lsid;
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}
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function _uuid() {
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const e = randomHexStr(8);
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const t = randomHexStr(4);
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const r = randomHexStr(4);
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const n = randomHexStr(4);
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const o = randomHexStr(12);
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const i = Date.now();
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return e + '-' + t + '-' + r + '-' + n + '-' + o + padStringWithZeros((i % 100000).toString(), 5) + 'infoc';
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}
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// P
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function shiftCharByOne(string) {
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let shiftedStr = '';
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for (let n = 0; n < string.length; n++) {
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shiftedStr += String.fromCharCode(string.charCodeAt(n) - 1);
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}
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return shiftedStr;
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}
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// o
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function hexsign(e) {
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const n = 'YhxToH[2q';
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const r = CryptoJS.HmacSHA256('ts'.concat(e), shiftCharByOne(n));
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const o = CryptoJS.enc.Hex.stringify(r);
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return o;
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}
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function addWbiVerifyInfo(params, wbiVerifyString) {
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const searchParams = new URLSearchParams(params);
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searchParams.sort();
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const verifyParam = searchParams.toString();
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const wts = Math.round(Date.now() / 1000);
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const w_rid = md5(`${verifyParam}&wts=${wts}${wbiVerifyString}`);
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return `${params}&w_rid=${w_rid}&wts=${wts}`;
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}
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// https://github.com/errcw/gaussian/blob/master/lib/box-muller.js
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function generateGaussianInteger(mean, std) {
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const _2PI = Math.PI * 2;
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const u1 = Math.random();
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const u2 = Math.random();
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const z0 = Math.sqrt(-2 * Math.log(u1)) * Math.cos(_2PI * u2);
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return Math.round(z0 * std + mean);
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}
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function getDmImgList() {
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if (config.bilibili.dmImgList !== undefined) {
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const dmImgList = JSON.parse(config.bilibili.dmImgList);
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return JSON.stringify([dmImgList[Math.floor(Math.random() * dmImgList.length)]]);
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}
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const x = Math.max(generateGaussianInteger(650, 5), 0);
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const y = Math.max(generateGaussianInteger(400, 5), 0);
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const path = [
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{
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x: 3 * x + 2 * y,
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y: 4 * x - 5 * y,
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z: 0,
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timestamp: Math.max(generateGaussianInteger(30, 5), 0),
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type: 0,
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},
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];
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return JSON.stringify(path);
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}
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function addDmVerifyInfo(params, dmImgList) {
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const dmImgStr = Buffer.from('no webgl').toString('base64').slice(0, -2);
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const dmCoverImgStr = Buffer.from('no webgl').toString('base64').slice(0, -2);
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return `${params}&dm_img_list=${dmImgList}&dm_img_str=${dmImgStr}&dm_cover_img_str=${dmCoverImgStr}`;
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}
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module.exports = {
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iframe,
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lsid,
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_uuid,
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hexsign,
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addWbiVerifyInfo,
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getDmImgList,
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addDmVerifyInfo,
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bvidTime: 1_589_990_400,
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};
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