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Pull Request: Admin Audit Trail - Issue 19

Summary

Issue 19: [Logs] Admin Audit Trail - COMPLETED

Implemented a comprehensive admin audit trail system for compliance auditing that logs every admin action (Revoke, Create, Transfer) to a dedicated log file.

Acceptance Criteria Met

Create audit.log - Implemented in src/services/auditLogger.js

  • Log file created at backend/logs/audit.log
  • Automatic directory creation if it doesn't exist

Format: [TIMESTAMP] [ADMIN_ADDR] [ACTION] [TARGET_VAULT] - Exactly implemented

  • Example: [2024-02-20T12:00:00.000Z] [0x1234...] [CREATE] [0x9876...]

Changes Made

New Files Created

  • src/services/auditLogger.js - Audit logging utility with exact format requirements
  • src/services/adminService.js - Admin service with REVOKE, CREATE, TRANSFER actions
  • backend/AUDIT_IMPLEMENTATION.md - Complete implementation documentation
  • backend/test-audit.js - Test script for validation

Modified Files

  • src/index.js - Added admin API routes

API Endpoints Added

  • POST /api/admin/revoke - Revoke vault access
  • POST /api/admin/create - Create new vault
  • POST /api/admin/transfer - Transfer vault ownership
  • GET /api/admin/audit-logs - Retrieve audit logs

Audit Log Format

[TIMESTAMP] [ADMIN_ADDR] [ACTION] [TARGET_VAULT]
[2024-02-20T12:00:00.000Z] [0x1234567890123456789012345678901234567890] [CREATE] [0x9876543210987654321098765432109876543210]
[2024-02-20T12:01:00.000Z] [0x1234567890123456789012345678901234567890] [REVOKE] [0x9876543210987654321098765432109876543210]
[2024-02-20T12:02:00.000Z] [0x1234567890123456789012345678901234567890] [TRANSFER] [0x9876543210987654321098765432109876543210]

Compliance Features

  • ✅ Immutable audit trail (append-only logs)
  • ✅ Timestamped entries in ISO format
  • ✅ Admin address tracking
  • ✅ Action type tracking (CREATE, REVOKE, TRANSFER)
  • ✅ Target vault identification
  • ✅ Error handling and logging
  • ✅ Log retrieval functionality

Testing

  • Comprehensive test script included (test-audit.js)
  • Validates all admin actions and audit logging
  • Confirms log format compliance

How to Test

  1. Run the test script: node test-audit.js
  2. Start the server: npm start
  3. Test API endpoints with sample requests
  4. Check audit log file: backend/logs/audit.log

Labels

  • compliance
  • logging
  • enhancement

Fixes #19