file-validator

To validate file formats and check content integrity, apply extension checks against an allowed set alongside safe path resolution to prevent processing of unsafe or malformed documents.

Preventing path traversal during file upload processing requires enforcing safe path resolution to ensure files are accessed only from permitted directories before format validation.

Enforcing MIME-type validation and size limits in a document intake pipeline involves applying optional content checks and restricting oversized inputs to ensure data safety.

File validation works for batch processing across local or cloud storage by applying extension checks, safe path resolution, and size limits to uploaded documents.

File validation can fail to stop unsafe files with spoofed extensions if only file names are checked, but adding optional MIME-type validation increases confidence in the actual content format.