file_signature 1.0.0

file_signature: ^1.0.0 copied to clipboard

Initial Release - "Don't trust the file extension. Trust the bits."

• Core Validation: Added FileSignature.guard(file) to validate XFile types by reading their Magic Bytes (Hex Signature).
• Stream Security: Added FileSignature.guardStream(stream) to intercept and validate large file uploads without buffering the entire file in RAM.
• Boolean Check: Added FileSignature.isValid(bytes) for quick checks on memory data (Base64/Clipboard).
• Supported Formats:
  • Images: PNG, JPEG, GIF, WebP, BMP, HEIC.
  • Documents: PDF.
  • Archives: ZIP (detects DOCX, APK, JAR, etc.).
  • Media: MP4, MOV (ISO Base Media detection).
• Security: Added explicit blocking for executable malware:
  • Windows (.exe)
  • Linux (.elf)
  • macOS (Mach-O)
• Universal Support: Full support for Android, iOS, Web (Blob slicing), macOS, Windows, and Linux.