@flystorage/file-storage/dist/esm/path-normalizer.js

File-storage abstraction: multiple filesystems, one API.

import { join } from 'node:path';
const funkyWhiteSpaceRegex = new RegExp('\\p{C}+', 'u');
export class PathNormalizerV1 {
    normalizePath(path) {
        if (funkyWhiteSpaceRegex.test(path)) {
            throw CorruptedPathDetected.unexpectedWhitespace(path);
        }
        const normalized = join(...(path.split('/')));
        if (normalized.indexOf('../') !== -1 || normalized == '..') {
            throw PathTraversalDetected.forPath(path);
        }
        return normalized === '.' ? '' : normalized;
    }
}
export class CorruptedPathDetected extends Error {
    static unexpectedWhitespace = (path) => new CorruptedPathDetected(`Corrupted path detected with unexpected whitespace: ${path}`);
}
export class PathTraversalDetected extends Error {
    static forPath = (path) => new PathTraversalDetected(`Path traversal detected for: ${path}`);
}