file-upload-handling

Secure file uploads by validating content type, enforcing size limits, scanning for malware, and storing files with UUID-based naming outside the web root. This prevents unauthorized access, path traversal attacks, and malicious file execution while supporting images, documents, and videos across multiple upload endpoints.

File upload validation includes MIME type verification, strict content type checking, maximum size constraints, and optional malware scanning. These checks together prevent type confusion attacks, oversized requests, and infected files from reaching your storage system.

Yes, this approach handles profile photos, documents, and resource assets with type-specific validation and size limits. It also generates thumbnails for images and stores each file type in separate subfolders with UUID-based names for organization and security.

UUID-based naming prevents filename collisions, protects user privacy by obscuring original filenames, eliminates path traversal vulnerabilities from user-supplied names, and ensures unique storage across concurrent uploads. Combined with non-web-root deployment, this hardens security against direct file access attacks.

Core dependencies include python-magic for MIME type detection, aiofiles for async file operations, and python-multipart for parsing multipart form data. Together they enable type validation, concurrent uploads, and efficient file processing in Python backends.

Combine MIME verification via python-magic, strict type validation against an allowlist, size limits to prevent resource exhaustion, and optional virus scanning integration. This layered approach blocks both known malware signatures and unexpected file formats before storage.