Elmar Kresse
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34 lines
965 B
JavaScript
34 lines
965 B
JavaScript
import fs from 'fs';
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import path from 'path';
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import mime from 'mime';
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import { DATA_DIR as RAW_DATA_DIR } from '../../config.js';
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// Resolve DATA_DIR once, ensure absolute path and normalized with trailing separator for prefix checks
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const DATA_DIR = path.resolve(RAW_DATA_DIR);
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const DATA_DIR_WITH_SEP = DATA_DIR.endsWith(path.sep) ? DATA_DIR : DATA_DIR + path.sep;
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export function resolveSafePath(name) {
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if (!name || typeof name !== 'string') return null;
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// Prevent path traversal and normalize input
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const joined = path.join(DATA_DIR, name);
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const resolved = path.resolve(joined);
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if (resolved === DATA_DIR || resolved.startsWith(DATA_DIR_WITH_SEP)) return resolved;
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return null;
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}
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export function fileExists(p) {
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try {
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return fs.existsSync(p);
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} catch {
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return false;
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}
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}
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export function statFile(p) {
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return fs.statSync(p);
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}
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export function getMimeType(p, fallback = 'audio/mpeg') {
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return mime.getType(p) || fallback;
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}
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