44 lines
2.0 KiB
JavaScript
44 lines
2.0 KiB
JavaScript
// 启动器与服务端共用的路径、配置校验。
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const fs = require('fs');
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const path = require('path');
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function canonical(input) {
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if (typeof input !== 'string' || !path.isAbsolute(input)) throw new Error('必须填写绝对路径');
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let p = path.resolve(input);
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const tail = [];
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while (!fs.existsSync(p)) {
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const parent = path.dirname(p);
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if (parent === p) throw new Error('目录所在磁盘不存在');
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tail.unshift(path.basename(p)); p = parent;
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}
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return path.join(fs.realpathSync.native(p), ...tail);
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}
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function samePath(a, b) { return canonical(a).toLowerCase() === canonical(b).toLowerCase(); }
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function contains(a, b) {
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const rel = path.relative(canonical(a).toLowerCase(), canonical(b).toLowerCase());
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return rel === '' || (!rel.startsWith('..' + path.sep) && rel !== '..' && !path.isAbsolute(rel));
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}
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function validateConfig(config, gameDir) {
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const next = { ...config };
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for (const key of ['cdpPort', 'webPort']) {
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const n = Number(next[key]);
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if (!Number.isInteger(n) || n < 1024 || n > 65535) throw new Error(`${key} 必须是 1024~65535 的整数`);
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next[key] = n;
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}
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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');
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next.sandboxDir = canonical(String(next.sandboxDir || '').trim());
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if (contains(gameDir, next.sandboxDir) || contains(next.sandboxDir, gameDir)) {
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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');
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}
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return next;
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}
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function readConfig(file, defaults, gameDir) {
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let patch = {};
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if (fs.existsSync(file)) {
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try { patch = JSON.parse(fs.readFileSync(file, 'utf8')); }
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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'); }
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}
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return validateConfig({ ...defaults, ...patch }, gameDir);
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}
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module.exports = { canonical, samePath, contains, validateConfig, readConfig };
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