17 lines
724 B
TypeScript
17 lines
724 B
TypeScript
import { extname } from 'node:path';
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export const ALLOWED: Record<string, string> = {
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'.jpg': 'image/jpeg', '.jpeg': 'image/jpeg', '.png': 'image/png', '.webp': 'image/webp', '.gif': 'image/gif',
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};
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export const MAX_BYTES = 5 * 1024 * 1024;
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export function validateUploadFile(file: unknown):
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| { ok: true; file: File; ext: string }
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| { ok: false; error: string } {
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if (!(file instanceof File)) return { ok: false, error: 'Nessun file.' };
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const ext = extname(file.name).toLowerCase();
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if (!ALLOWED[ext]) return { ok: false, error: 'Formato non consentito (jpg, png, webp, gif).' };
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if (file.size > MAX_BYTES) return { ok: false, error: 'File troppo grande (max 5 MB).' };
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return { ok: true, file, ext };
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}
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