reverse-skills-max: initial public release (restored, redacted, hardened)

vendor-new/xbsReverseSkill/web-js-env-patcher/scripts/precheck_runtime.js

@@ -0,0 +1,101 @@
+#!/usr/bin/env node
+'use strict';
+
+const crypto = require('crypto');
+
+function parseArgs(argv) {
+  const args = { json: false, markdown: false };
+  for (let i = 2; i < argv.length; i++) {
+    const a = argv[i];
+    if (a === '--json') args.json = true;
+    else if (a === '--markdown') args.markdown = true;
+    else if (a === '--help' || a === '-h') args.help = true;
+    else throw new Error(`未知参数：${a}`);
+  }
+  if (!args.json && !args.markdown) args.markdown = true;
+  return args;
+}
+
+function usage() {
+  return `用法：
+  node scripts/precheck_runtime.js --markdown
+  node scripts/precheck_runtime.js --json
+
+说明：输出 Node.js 侧纯计算预检结果；浏览器侧需运行同类片段后人工比对。`;
+}
+
+function collect() {
+  const emoji = '中文🙂𠮷';
+  const params = new URLSearchParams();
+  params.append('b', '2');
+  params.append('a', '1 2');
+  params.append('emoji', '🙂');
+  const encoder = new TextEncoder();
+  const bytes = Array.from(encoder.encode(emoji));
+  const random = new Uint8Array(8);
+  if (globalThis.crypto && typeof globalThis.crypto.getRandomValues === 'function') globalThis.crypto.getRandomValues(random);
+  else random.set(crypto.randomBytes(8));
+  return {
+    node: { version: process.version, platform: process.platform, arch: process.arch, v8: process.versions.v8 },
+    math: {
+      imul: Math.imul(0x7fffffff, 31),
+      fround: Math.fround(0.1),
+      pow: Math.pow(2, 53) - 1,
+      trig: Number(Math.sin(Math.PI / 6).toFixed(12)),
+    },
+    stringUnicode: {
+      sample: emoji,
+      length: emoji.length,
+      codePoints: Array.from(emoji).map(ch => ch.codePointAt(0).toString(16)),
+      normalized: emoji.normalize('NFC'),
+    },
+    arrayObject: {
+      sort: ['10', '2', '1'].sort(),
+      numericSort: [10, 2, 1].sort((a, b) => a - b),
+      jsonOrder: JSON.stringify({ b: 2, a: 1, 1: 'one', 0: 'zero' }),
+      keys: Object.keys({ b: 2, a: 1, 1: 'one', 0: 'zero' }),
+    },
+    dateTimezone: {
+      timezoneOffset: new Date('2020-01-02T03:04:05Z').getTimezoneOffset(),
+      iso: new Date(1577934245000).toISOString(),
+      locale: new Date(1577934245000).toString(),
+    },
+    encoding: {
+      textEncoderBytes: bytes,
+      urlSearchParams: params.toString(),
+      encodeURIComponent: encodeURIComponent(emoji),
+      btoaAscii: Buffer.from('abc123', 'binary').toString('base64'),
+      atobAscii: Buffer.from('YWJjMTIz', 'base64').toString('binary'),
+    },
+    random: {
+      mathRandomType: typeof Math.random(),
+      cryptoBytesSample: Array.from(random),
+      note: '随机值只用于确认 API 可用；正式 fixtures 应固定随机源。',
+    },
+  };
+}
+
+function renderMarkdown(result) {
+  const lines = ['# Node.js 纯计算预检结果', '', `- Node.js：${result.node.version}`, `- 平台：${result.node.platform}-${result.node.arch}`, `- V8：${result.node.v8}`];
+  for (const [section, value] of Object.entries(result)) {
+    if (section === 'node') continue;
+    lines.push('', `## ${section}`);
+    for (const [k, v] of Object.entries(value)) lines.push(`- ${k}：${Array.isArray(v) ? JSON.stringify(v) : String(v)}`);
+  }
+  lines.push('', '## 下一步');
+  lines.push('- 在浏览器控制台运行同类预检片段，保存为 `notes/runtime-precheck-browser.json`。');
+  lines.push('- 若 Node 与浏览器基础计算一致，再继续排查环境对象、初始化参数和样本差异。');
+  return lines.join('\n') + '\n';
+}
+
+try {
+  const args = parseArgs(process.argv);
+  if (args.help) { console.log(usage()); process.exit(0); }
+  const result = collect();
+  if (args.json) console.log(JSON.stringify(result, null, 2));
+  if (args.markdown) process.stdout.write(renderMarkdown(result));
+} catch (err) {
+  console.error(err.message || String(err));
+  console.error(usage());
+  process.exit(1);
+}