Module encoding 

Encoding detection and normalization for path security

Functions

detect_dangerous_unicode

Detect dangerous Unicode characters

detect_mixed_encoding

Detect mixed encoding attacks (UTF-8 + UTF-16)

detect_overlong_utf8

Detect UTF-8 overlong encoding attacks Overlong encodings like %c0%ae for “.” are invalid but sometimes parsed

detect_unicode_encoding

Detect Unicode encoding tricks

detect_url_encoding

Detect URL-encoded path traversal patterns Checks for: %2e, %2f, %5c and their uppercase variants

normalize_and_check

Normalize path to detect hidden traversal attempts