[WIP] Implement Robust Error Handling for File Access and Permission Errors

[parker110-crypto]

Implement Robust Error Handling for File Access and Permission Errors

Description

Task

Implement robust error handling for file access and permission issues

Acceptance Criteria

• Error handling middleware correctly intercepts file access errors
• No sensitive system information is exposed in error responses
• Appropriate HTTP status codes are returned for different file access error types
• Logging captures error details securely
• Application continues to function without crashing when file access errors occur

Summary of Work

This pull request adds comprehensive error handling for file permission and access errors in our CDN file serving application. The implementation will enhance the application's resilience and provide clear, secure error responses when file access issues occur.

Changes Made

• Add middleware to handle EACCES (Permission Denied) errors
• Create error handler for ENOENT (File Not Found) scenarios
• Implement secure error logging without exposing sensitive system details
• Add generic file access error handling middleware
• Ensure error responses do not leak internal path information

Tests

• Verify permission denied errors are handled gracefully
• Confirm file not found errors return appropriate status codes
• Test that error logs capture necessary information without exposing system details
• Validate that error responses are consistent and secure
• Ensure no internal file system paths are revealed in error messages

Signatures

Staking Key

DnKC6ccCbNTByVMcwf912eVtsqN6bMVGmMYMjxo31SLK: 582EUfiZsHhxyRzndoRHwJ8YnKQiDqA3sQqEM6KywAv2kDfB9Nbc5mn3of8jNSvrJeGDmB6u5jPPVX5ojmAmW4hmV9jcpDd6uUQiEvtHiJvcoXZyKL75FWAd2CRxEeSyELxo3wK7vjnWc8JE9aDA6g3LTzQd8fs3i2ECmAr92eeHebQRg4QuxBZnSdCbUycBffqidRHkdRo3jX9UxKyLwN7i3G7VsLJApNd32gTeZrevbo6rEq33VaXc5DTPHtUyz4pjGfe8QUAxaK6WJ83Ck1gnbjKu5pqRnMbCiconYYExBSpxWwGZ5MfZmQ13bWho1Vs6gQS1Sy1JvLugwhcPqPea6EtP92QwZEXY6uR1ic5fQ7eLSArQBcsUAQSZF18ZviXM396JbUTv5cH1yBqoAzocYzspc796mq3W57hJNh16

Public Key

87R2z3PcW3KoJWVc6vXkHuKduiT5EcjFEBzCyohX2GhX: JTWWvwPA9VwbtUHhaK2LXLVMNWsQbBSwWPL8UJoNZi3hpSXvQ1zHnYkqVHM6tiDGEB28ce26Da2VA359qQzbBS7eSo1nhzSK22NqkS56ibUFpTijq89KZqXEVVrypYHzSxzHisdRFeX7b2JNW9ua3cggGBH86o6vUNhW8o4p7QP6VKhU2iovumsoLPpM71pH2HyqNXWxVRt2UgLxvhkv7YiiD5yF9bn7eGenNao64hnwfeR3bGoJhXvNi1JzvD1nyapqZwjoWLSmRgAGzzTrsaWPzcCuPf7C8cwKBfTLVbPUNLhVKmxPj6aSEu1tzMoHqr1rExpnqstonCYqbExaA18q29wWLUVfNFxG4Xue7GmxCCoHe4TbdqQ2akCZxNXF7rRtHN644Pv5WurgR9qzKpX32jDeLyK3iDtWmLrBD8x