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updated expressjs project to mirror upload file names

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This commit is contained in:
Ludwig Lehnert
2026-01-12 17:19:29 +01:00
parent ffdc4cf43e
commit dbca041859
1 changed files with 17 additions and 7 deletions
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24
expressjs/src/server.js
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@@ -146,11 +146,20 @@ function toBase32(buffer) {
return output; return output;
} }
function createToken(timestampMs) { function createRandomId() {
const tsBuffer = Buffer.alloc(8); return toBase32(crypto.randomBytes(5));
tsBuffer.writeBigUInt64BE(BigInt(timestampMs)); }
const randomPart = crypto.randomBytes(12);
return toBase32(Buffer.concat([tsBuffer, randomPart])); function sanitizeBaseName(originalName) {
const ext = path.extname(originalName || '');
const base = path.basename(originalName || 'datei', ext);
const cleaned = base
.replace(/\s+/g, '-')
.replace(/[^a-zA-Z0-9_-]/g, '')
.replace(/-+/g, '-')
.replace(/_+/g, '_')
.replace(/^[-_]+|[-_]+$/g, '');
return cleaned || 'datei';
} }
function sanitizeExtension(originalName) { function sanitizeExtension(originalName) {
@@ -502,9 +511,10 @@ app.post(`${basePath}/api/upload`, requireAuthApi, upload.single('file'), async
} }
const now = Date.now(); const now = Date.now();
const token = createToken(now);
const ext = sanitizeExtension(req.file.originalname); const ext = sanitizeExtension(req.file.originalname);
const storedName = `_${token}${ext}`; const baseName = sanitizeBaseName(req.file.originalname);
const token = createRandomId();
const storedName = `_${baseName}-${token}${ext}`;
const storedPath = path.join(shareDir, storedName); const storedPath = path.join(shareDir, storedName);
const retentionOverride = parseFloat(req.body.retentionHours || ''); const retentionOverride = parseFloat(req.body.retentionHours || '');