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/* eslint-disable unicorn/prefer-spread */
/* eslint-disable unicorn/prefer-math-trunc */
// @ts-nocheck
// Credits:
// https://github.com/NearHuiwen/TiktokDouyinCrawler/blob/main/utils/a_bogus.js
// https://github.com/110Art/a-bogus/blob/main/a_bogus.js
// https://github.com/ShilongLee/Crawler/blob/main/lib/js/douyin.js
// Reference:
// https://github.com/Endy-c/gm-crypt/blob/87bfc13f4b234c538d56798ed2457da16bc006ac/src/sm3.js
import logger from '@/utils/logger';
function rc4_encrypt(plaintext, key) {
const s: number[] = [];
for (let i = 0; i < 256; i++) {
s[i] = i;
}
for (let i = 0, j = 0; i < 256; i++) {
j = (j + s[i] + key.codePointAt(i % key.length)) % 256;
const temp = s[i];
s[i] = s[j];
s[j] = temp;
}
const cipher: string[] = [];
for (let i = 0, j = 0, k = 0; k < plaintext.length; k++) {
i = (i + 1) % 256;
j = (j + s[i]) % 256;
const temp = s[i];
s[i] = s[j];
s[j] = temp;
const t = (s[i] + s[j]) % 256;
cipher.push(String.fromCodePoint(s[t] ^ plaintext.codePointAt(k)));
}
return cipher.join('');
}
function rotateLeft32(e, r) {
return ((e << (r %= 32)) | (e >>> (32 - r))) >>> 0;
}
function T(j) {
if (0 <= j && j < 16) {
return 0x79_CC_45_19;
} else if (16 <= j && j < 64) {
return 0x7A_87_9D_8A;
} else {
logger.error('invalid j for constant Tj');
}
}
function FF(j, x, y, z) {
if (0 <= j && j < 16) {
return (x ^ y ^ z) >>> 0;
} else if (16 <= j && j < 64) {
return ((x & y) | (x & z) | (y & z)) >>> 0;
} else {
logger.error('invalid j for bool function FF');
return 0;
}
}
function GG(j, x, y, z) {
if (0 <= j && j < 16) {
return (x ^ y ^ z) >>> 0;
} else if (16 <= j && j < 64) {
return ((x & y) | (~x & z)) >>> 0;
} else {
logger.error('invalid j for bool function GG');
return 0;
}
}
function reset(this: any) {
this.reg[0] = 0x73_80_16_6F;
this.reg[1] = 0x49_14_B2_B9;
this.reg[2] = 0x17_24_42_D7;
this.reg[3] = 0xDA_8A_06_00;
this.reg[4] = 0xA9_6F_30_BC;
this.reg[5] = 0x16_31_38_AA;
this.reg[6] = 0xE3_8D_EE_4D;
this.reg[7] = 0xB0_FB_0E_4E;
this.chunk = [];
this.size = 0;
}
function strToBytes(str) {
const n = encodeURIComponent(str).replaceAll(/%([0-9A-F]{2})/g, (e, r) => String.fromCodePoint('0x' + r));
const a = Array.from({ length: n.length });
Array.prototype.forEach.call(n, (e, r) => {
a[r] = e.codePointAt(0);
});
return a;
}
function write(this: any, message) {
const a = typeof message === 'string' ? strToBytes(message) : message;
this.size += a.length;
let f = 64 - this.chunk.length;
if (a.length < f) {
this.chunk = this.chunk.concat(a);
} else {
this.chunk = this.chunk.concat(a.slice(0, f));
while (this.chunk.length >= 64) {
this._compress(this.chunk);
this.chunk = f < a.length ? a.slice(f, Math.min(f + 64, a.length)) : [];
f += 64;
}
}
}
function sum(this: any, message, encoding) {
if (message) {
this.reset();
this.write(message);
}
this._fill();
for (let f = 0; f < this.chunk.length; f += 64) {
this._compress(this.chunk.slice(f, f + 64));
}
let digest;
if (encoding === 'hex') {
digest = '';
for (let f = 0; f < 8; f++) {
digest += se(this.reg[f].toString(16), 8, '0');
}
} else {
digest = Array.from({ length: 32 });
for (let f = 0; f < 8; f++) {
let c = this.reg[f];
digest[4 * f + 3] = (255 & c) >>> 0;
c >>>= 8;
digest[4 * f + 2] = (255 & c) >>> 0;
c >>>= 8;
digest[4 * f + 1] = (255 & c) >>> 0;
c >>>= 8;
digest[4 * f] = (255 & c) >>> 0;
}
}
this.reset();
return digest;
}
function expand(e) {
const r: number[] = Array.from({ length: 132 });
for (let t = 0; t < 16; t++) {
r[t] = e[4 * t] << 24;
r[t] |= e[4 * t + 1] << 16;
r[t] |= e[4 * t + 2] << 8;
r[t] |= e[4 * t + 3];
r[t] >>>= 0;
}
for (let n = 16; n < 68; n++) {
let a = r[n - 16] ^ r[n - 9] ^ rotateLeft32(r[n - 3], 15);
a = a ^ rotateLeft32(a, 15) ^ rotateLeft32(a, 23);
r[n] = (a ^ rotateLeft32(r[n - 13], 7) ^ r[n - 6]) >>> 0;
}
for (let n = 0; n < 64; n++) {
r[n + 68] = (r[n] ^ r[n + 4]) >>> 0;
}
return r;
}
function _compress(this: any, t) {
if (t < 64) {
logger.error('compress error: not enough data');
return;
} else {
const f = expand(t);
const i = this.reg.slice(0);
for (let c = 0; c < 64; c++) {
let o = rotateLeft32(i[0], 12) + i[4] + rotateLeft32(T(c), c);
o = (0xFF_FF_FF_FF & o) >>> 0;
o = rotateLeft32(o, 7);
const s = (o ^ rotateLeft32(i[0], 12)) >>> 0;
let u = FF(c, i[0], i[1], i[2]);
u = u + i[3] + s + f[c + 68];
u = (0xFF_FF_FF_FF & u) >>> 0;
let b = GG(c, i[4], i[5], i[6]);
b = b + i[7] + o + f[c];
b = (0xFF_FF_FF_FF & b) >>> 0;
i[3] = i[2];
i[2] = rotateLeft32(i[1], 9);
i[1] = i[0];
i[0] = u;
i[7] = i[6];
i[6] = rotateLeft32(i[5], 19);
i[5] = i[4];
i[4] = (b ^ rotateLeft32(b, 9) ^ rotateLeft32(b, 17)) >>> 0;
}
for (let l = 0; l < 8; l++) {
this.reg[l] = (this.reg[l] ^ i[l]) >>> 0;
}
}
}
function _fill(this: any) {
const a = 8 * this.size;
let f = this.chunk.push(128) % 64;
for (64 - f < 8 && (f -= 64); f < 56; f++) {
this.chunk.push(0);
}
for (let i = 0; i < 4; i++) {
const c = Math.floor(a / 0x1_00_00_00_00);
this.chunk.push((c >>> (8 * (3 - i))) & 0xFF);
}
for (let i = 0; i < 4; i++) {
this.chunk.push((a >>> (8 * (3 - i))) & 0xFF);
}
}
function SM3(this: any) {
this.reg = [];
this.chunk = [];
this.size = 0;
this.reset();
}
SM3.prototype.reset = reset;
SM3.prototype.write = write;
SM3.prototype.sum = sum;
SM3.prototype._compress = _compress;
SM3.prototype._fill = _fill;
function result_encrypt(long_str: string, num: 's0' | 's1' | 's2' | 's3' | 's4') {
const s_obj = {
s0: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=',
s1: 'Dkdpgh4ZKsQB80/Mfvw36XI1R25+WUAlEi7NLboqYTOPuzmFjJnryx9HVGcaStCe=',
s2: 'Dkdpgh4ZKsQB80/Mfvw36XI1R25-WUAlEi7NLboqYTOPuzmFjJnryx9HVGcaStCe=',
s3: 'ckdp1h4ZKsUB80/Mfvw36XIgR25+WQAlEi7NLboqYTOPuzmFjJnryx9HVGDaStCe',
s4: 'Dkdpgh2ZmsQB80/MfvV36XI1R45-WUAlEixNLwoqYTOPuzKFjJnry79HbGcaStCe',
};
const constant = {
'0': 16_515_072,
'1': 258048,
'2': 4032,
str: s_obj[num],
};
let result = '';
let lound = 0;
let long_int = get_long_int(lound, long_str);
for (let i = 0; i < (long_str.length / 3) * 4; i++) {
if (Math.floor(i / 4) !== lound) {
lound += 1;
long_int = get_long_int(lound, long_str);
}
const key = i % 4;
let temp_int: number;
switch (key) {
case 0:
temp_int = (long_int & constant['0']) >> 18;
result += constant.str.charAt(temp_int);
break;
case 1:
temp_int = (long_int & constant['1']) >> 12;
result += constant.str.charAt(temp_int);
break;
case 2:
temp_int = (long_int & constant['2']) >> 6;
result += constant.str.charAt(temp_int);
break;
case 3:
temp_int = long_int & 63;
result += constant.str.charAt(temp_int);
break;
default:
break;
}
}
return result;
}
function get_long_int(round, long_str) {
round = round * 3;
return (long_str.codePointAt(round) << 16) | (long_str.codePointAt(round + 1) << 8) | long_str.codePointAt(round + 2);
}
function gener_random(random, option) {
return [
(random & 255 & 170) | (option[0] & 85), // 163
(random & 255 & 85) | (option[0] & 170), // 87
((random >> 8) & 255 & 170) | (option[1] & 85), // 37
((random >> 8) & 255 & 85) | (option[1] & 170), // 41
];
}
// ////////////////////////////////////////////
function generate_rc4_bb_str(url_search_params, user_agent, window_env_str, suffix = 'cus', Arguments = [0, 1, 14]) {
const sm3 = new SM3();
const start_time = Date.now();
/**
* 进行3次加密处理
* 1: url_search_params两次sm3之的结果
* 2: 对后缀两次sm3之的结果
* 3: 对ua处理之后的结果
*/
// url_search_params两次sm3之的结果
const url_search_params_list = sm3.sum(sm3.sum(url_search_params + suffix));
// 对后缀两次sm3之的结果
const cus = sm3.sum(sm3.sum(suffix));
// 对ua处理之后的结果
const ua = sm3.sum(result_encrypt(rc4_encrypt(user_agent, Reflect.apply(String.fromCharCode, null, [0.003_906_25, 1, 14])), 's3'));
//
const end_time = Date.now();
// b
const b = {
8: 3, // 固定
10: end_time, // 3次加密结束时间
15: {
aid: 6383,
pageId: 6241,
boe: false,
ddrt: 7,
paths: {
include: [{}, {}, {}, {}, {}, {}, {}],
exclude: [],
},
track: {
mode: 0,
delay: 300,
paths: [],
},
dump: true,
rpU: '',
},
16: start_time, // 3次加密开始时间
18: 44, // 固定
19: [1, 0, 1, 5],
};
// 3次加密开始时间
b[20] = (b[16] >> 24) & 255;
b[21] = (b[16] >> 16) & 255;
b[22] = (b[16] >> 8) & 255;
b[23] = b[16] & 255;
b[24] = (b[16] / 256 / 256 / 256 / 256) >> 0;
b[25] = (b[16] / 256 / 256 / 256 / 256 / 256) >> 0;
// 参数Arguments [0, 1, 14, ...]
// let Arguments = [0, 1, 14]
b[26] = (Arguments[0] >> 24) & 255;
b[27] = (Arguments[0] >> 16) & 255;
b[28] = (Arguments[0] >> 8) & 255;
b[29] = Arguments[0] & 255;
b[30] = (Arguments[1] / 256) & 255;
b[31] = Arguments[1] % 256 & 255;
b[32] = (Arguments[1] >> 24) & 255;
b[33] = (Arguments[1] >> 16) & 255;
b[34] = (Arguments[2] >> 24) & 255;
b[35] = (Arguments[2] >> 16) & 255;
b[36] = (Arguments[2] >> 8) & 255;
b[37] = Arguments[2] & 255;
// (url_search_params + "cus") 两次sm3之的结果
/** let url_search_params_list = [
91, 186, 35, 86, 143, 253, 6, 76,
34, 21, 167, 148, 7, 42, 192, 219,
188, 20, 182, 85, 213, 74, 213, 147,
37, 155, 93, 139, 85, 118, 228, 213
]*/
b[38] = url_search_params_list[21];
b[39] = url_search_params_list[22];
// ("cus") 对后缀两次sm3之的结果
/**
* let cus = [
136, 101, 114, 147, 58, 77, 207, 201,
215, 162, 154, 93, 248, 13, 142, 160,
105, 73, 215, 241, 83, 58, 51, 43,
255, 38, 168, 141, 216, 194, 35, 236
]*/
b[40] = cus[21];
b[41] = cus[22];
// 对ua处理之后的结果
/**
* let ua = [
129, 190, 70, 186, 86, 196, 199, 53,
99, 38, 29, 209, 243, 17, 157, 69,
147, 104, 53, 23, 114, 126, 66, 228,
135, 30, 168, 185, 109, 156, 251, 88
]*/
b[42] = ua[23];
b[43] = ua[24];
// 3次加密结束时间
b[44] = (b[10] >> 24) & 255;
b[45] = (b[10] >> 16) & 255;
b[46] = (b[10] >> 8) & 255;
b[47] = b[10] & 255;
b[48] = b[8];
b[49] = (b[10] / 256 / 256 / 256 / 256) >> 0;
b[50] = (b[10] / 256 / 256 / 256 / 256 / 256) >> 0;
// object配置项
b[51] = b[15].pageId;
b[52] = (b[15].pageId >> 24) & 255;
b[53] = (b[15].pageId >> 16) & 255;
b[54] = (b[15].pageId >> 8) & 255;
b[55] = b[15].pageId & 255;
b[56] = b[15].aid;
b[57] = b[15].aid & 255;
b[58] = (b[15].aid >> 8) & 255;
b[59] = (b[15].aid >> 16) & 255;
b[60] = (b[15].aid >> 24) & 255;
// 中间进行了环境检测
// 代码索引: 2496 索引值: 17 （索引64关键条件）
// '1536|747|1536|834|0|30|0|0|1536|834|1536|864|1525|747|24|24|Win32'.charCodeAt()得到65位数组
/**
* let window_env_list = [49, 53, 51, 54, 124, 55, 52, 55, 124, 49, 53, 51, 54, 124, 56, 51, 52, 124, 48, 124, 51,
* 48, 124, 48, 124, 48, 124, 49, 53, 51, 54, 124, 56, 51, 52, 124, 49, 53, 51, 54, 124, 56,
* 54, 52, 124, 49, 53, 50, 53, 124, 55, 52, 55, 124, 50, 52, 124, 50, 52, 124, 87, 105, 110,
* 51, 50]
*/
const window_env_list: number[] = [];
for (let index = 0; index < window_env_str.length; index++) {
window_env_list.push(window_env_str.codePointAt(index));
}
b[64] = window_env_list.length;
b[65] = b[64] & 255;
b[66] = (b[64] >> 8) & 255;
b[69] = [].length;
b[70] = b[69] & 255;
b[71] = (b[69] >> 8) & 255;
b[72] =
b[18] ^
b[20] ^
b[26] ^
b[30] ^
b[38] ^
b[40] ^
b[42] ^
b[21] ^
b[27] ^
b[31] ^
b[35] ^
b[39] ^
b[41] ^
b[43] ^
b[22] ^
b[28] ^
b[32] ^
b[36] ^
b[23] ^
b[29] ^
b[33] ^
b[37] ^
b[44] ^
b[45] ^
b[46] ^
b[47] ^
b[48] ^
b[49] ^
b[50] ^
b[24] ^
b[25] ^
b[52] ^
b[53] ^
b[54] ^
b[55] ^
b[57] ^
b[58] ^
b[59] ^
b[60] ^
b[65] ^
b[66] ^
b[70] ^
b[71];
let bb = [
b[18],
b[20],
b[52],
b[26],
b[30],
b[34],
b[58],
b[38],
b[40],
b[53],
b[42],
b[21],
b[27],
b[54],
b[55],
b[31],
b[35],
b[57],
b[39],
b[41],
b[43],
b[22],
b[28],
b[32],
b[60],
b[36],
b[23],
b[29],
b[33],
b[37],
b[44],
b[45],
b[59],
b[46],
b[47],
b[48],
b[49],
b[50],
b[24],
b[25],
b[65],
b[66],
b[70],
b[71],
];
bb = bb.concat(window_env_list).concat(b[72]);
return rc4_encrypt(String.fromCharCode.apply(null, bb), Reflect.apply(String.fromCharCode, null, [121]));
}
function generate_random_str() {
let random_str_list: number[] = [];
random_str_list = random_str_list.concat(gener_random(Math.random() * 10000, [3, 45]));
random_str_list = random_str_list.concat(gener_random(Math.random() * 10000, [1, 0]));
random_str_list = random_str_list.concat(gener_random(Math.random() * 10000, [1, 5]));
return String.fromCharCode.apply(null, random_str_list);
}
export function generate_a_bogus(url_search_params, user_agent) {
const result_str = generate_random_str() + generate_rc4_bb_str(url_search_params, user_agent, '1536|747|1536|834|0|30|0|0|1536|834|1536|864|1525|747|24|24|Win32');
return result_encrypt(result_str, 's4') + '=';
}