发布咸鱼喵喵截图辅助工具公开版

tool/lib/safety.js

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+// 启动器与服务端共用的路径、配置校验。
+const fs = require('fs');
+const path = require('path');
+
+function canonical(input) {
+    if (typeof input !== 'string' || !path.isAbsolute(input)) throw new Error('必须填写绝对路径');
+    let p = path.resolve(input);
+    const tail = [];
+    while (!fs.existsSync(p)) {
+        const parent = path.dirname(p);
+        if (parent === p) throw new Error('目录所在磁盘不存在');
+        tail.unshift(path.basename(p)); p = parent;
+    }
+    return path.join(fs.realpathSync.native(p), ...tail);
+}
+function samePath(a, b) { return canonical(a).toLowerCase() === canonical(b).toLowerCase(); }
+function contains(a, b) {
+    const rel = path.relative(canonical(a).toLowerCase(), canonical(b).toLowerCase());
+    return rel === '' || (!rel.startsWith('..' + path.sep) && rel !== '..' && !path.isAbsolute(rel));
+}
+function validateConfig(config, gameDir) {
+    const next = { ...config };
+    for (const key of ['cdpPort', 'webPort']) {
+        const n = Number(next[key]);
+        if (!Number.isInteger(n) || n < 1024 || n > 65535) throw new Error(`${key} 必须是 1024~65535 的整数`);
+        next[key] = n;
+    }
+    if (next.cdpPort === next.webPort) throw new Error('游戏调试端口和控制面板端口不能相同');
+    next.sandboxDir = canonical(String(next.sandboxDir || '').trim());
+    if (contains(gameDir, next.sandboxDir) || contains(next.sandboxDir, gameDir)) {
+        throw new Error('沙盒与原版目录必须完全分开，不能相同，也不能互相包含');
+    }
+    return next;
+}
+function readConfig(file, defaults, gameDir) {
+    let patch = {};
+    if (fs.existsSync(file)) {
+        try { patch = JSON.parse(fs.readFileSync(file, 'utf8')); }
+        catch { throw new Error('config.json 损坏，请修正配置后重试；不会静默换用其他目录'); }
+    }
+    return validateConfig({ ...defaults, ...patch }, gameDir);
+}
+module.exports = { canonical, samePath, contains, validateConfig, readConfig };