• Security Enhancements
  • Secure File Access System
    • Implemented comprehensive security controls for uploaded files (invoices, manuals)
    • Added two secure file serving endpoints with authentication and authorization
    • Created client-side utility functions for secure file handling
    • Blocked direct access to the uploads directory via nginx configuration
    • Added ownership verification to ensure users can only access their own files
    • Implemented protection against path traversal attacks
    • Enhanced logging for all file access attempts
  • Frontend Security Integration
    • Created new file-utils.js with secureFilePath and openSecureFile functions
    • Updated all file links to use secure handling methods
    • Added proper authentication token handling for file downloads