mirror of
https://github.com/pysunday/rs-reverse.git
synced 2025-04-20 02:34:56 +08:00
87 lines
2.5 KiB
JavaScript
87 lines
2.5 KiB
JavaScript
// 生成密钥
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const gv = require('../globalVarible');
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const decrypt = require('./common/decrypt');
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const logger = require('@utils/logger');
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const numToNumarr4 = require('./common/numToNumarr4');
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const dynamicExec = require('./common/dynamicExec');
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function getValMaps() {
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let uid = gv.ts.cp[3];
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const ans = [];
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for (let i = 0; i < gv.cp2[19]; i++) {
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uid = gv.cp2[174] * (uid & gv.cp2[25]) + gv.cp2[135]
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ans.push(uid)
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}
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return numToNumarr4(ans);
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}
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function parse(arr) {
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const len = arr.length;
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const valMap = getValMaps();
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let idx = 0;
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const task = [57, 132, 132, 132, 132, 132, 132].reverse();
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do {
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// 逻辑概率来源为：idx初始值为4，此处为idx += gv.cp2[2], 如果之后task有变可尝试固定为该逻辑
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idx += gv.cp2[gv.r2mka("0>one>5-5").taskarr[task.pop()]];
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const mod = idx % (len - idx > gv.cp2[2] ? gv.cp2[2] : len - idx);
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arr[mod + idx] ^= valMap[mod];
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} while (idx < len && task.length);
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return arr;
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}
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function getTaskarr(arr, idx, ans = []) {
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if (idx >= arr.length) return;
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const start = idx + 1;
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const end = start + arr[idx];
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ans.push(arr.slice(start, end));
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getTaskarr(arr, end + 2, ans);
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return ans;
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}
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function getOffset(arr) {
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const [task0, task1, task2, task3] = getTaskarr(arr, arr[3]);
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console.log([task0, task1, task3]);
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const l81 = gv.r2mka("0-0").taskarr[42] + gv.cp2[56];
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const l83 = (gv.cp0_96(1, gv.r2mka("0-0").taskarr[57]).charCodeAt() + l81) * l81;
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const offset = dynamicExec('0>one>22-24', 0, undefined, {
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20: function(...params) {
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return dynamicExec(task0, 0, params, {
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8: function (...params) {
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return dynamicExec(task1, 0, params);
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}
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})
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},
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8: function(...params) {
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return dynamicExec(task1, 0, params);
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},
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10: function(...params) {
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return dynamicExec(task3, 0, params);
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},
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81: l81,
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83: l83,
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}, {
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59: gv.cp2,
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})
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return offset;
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}
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exports.init = function() {
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const cdArr = decrypt(gv.ts.cd);
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const start = gv.r2mka('0>one>23-25').taskarr[9] + 2;
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const end = (cdArr[0] << gv.cp2[52] | cdArr[1]) + start;
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const one = parse(cdArr.slice(start, end)); // arr127
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const offset = getOffset(one);
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const ans = cdArr.slice(end).map((item, idx) => { // arr1575
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return item ^ offset[idx % gv.cp2[52]];
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})
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const keys = []
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for (let i = 0, op = 1; i < ans[0]; i ++) {
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const gap = ans[op++] << 8 | ans[op++];
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keys.push(ans.slice(op, op + gap));
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op += gap;
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}
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gv.setAttr('keys', keys);
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logger.debug('$_ts.cd完成解析!')
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};
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