Files
monolog-gdpr-filter/TODO.md
Ismo Vuorinen 8866daaf33 feat: add advanced architecture, documentation, and coverage improvements (#65)
* fix(style): resolve PHPCS line-length warnings in source files

* fix(style): resolve PHPCS line-length warnings in test files

* feat(audit): add structured audit logging with ErrorContext and AuditContext

- ErrorContext: standardized error information with sensitive data sanitization
- AuditContext: structured context for audit entries with operation types
- StructuredAuditLogger: enhanced audit logger wrapper with timing support

* feat(recovery): add recovery mechanism for failed masking operations

- FailureMode enum: FAIL_OPEN, FAIL_CLOSED, FAIL_SAFE modes
- RecoveryStrategy interface and RecoveryResult value object
- RetryStrategy: exponential backoff with configurable attempts
- FallbackMaskStrategy: type-aware fallback values

* feat(strategies): add CallbackMaskingStrategy for custom masking logic

- Wraps custom callbacks as MaskingStrategy implementations
- Factory methods: constant(), hash(), partial() for common use cases
- Supports exact match and prefix match for field paths

* docs: add framework integration guides and examples

- symfony-integration.md: Symfony service configuration and Monolog setup
- psr3-decorator.md: PSR-3 logger decorator pattern implementation
- framework-examples.md: CakePHP, CodeIgniter 4, Laminas, Yii2, PSR-15
- docker-development.md: Docker development environment guide

* chore(docker): add Docker development environment

- Dockerfile: PHP 8.2-cli-alpine with Xdebug for coverage
- docker-compose.yml: development services with volume mounts

* feat(demo): add interactive GDPR pattern tester playground

- PatternTester.php: pattern testing utility with strategy support
- index.php: web API endpoint with JSON response handling
- playground.html: interactive web interface for testing patterns

* docs(todo): update with completed medium priority items

- Mark all PHPCS warnings as fixed (81 → 0)
- Document new Audit and Recovery features
- Update test count to 1,068 tests with 2,953 assertions
- Move remaining items to low priority

* feat: add advanced architecture, documentation, and coverage improvements

- Add architecture improvements:
  - ArrayAccessorInterface and DotArrayAccessor for decoupled array access
  - MaskingOrchestrator for single-responsibility masking coordination
  - GdprProcessorBuilder for fluent configuration
  - MaskingPluginInterface and AbstractMaskingPlugin for plugin architecture
  - PluginAwareProcessor for plugin hook execution
  - AuditLoggerFactory for instance-based audit logger creation

- Add advanced features:
  - SerializedDataProcessor for handling print_r/var_export/serialize output
  - KAnonymizer with GeneralizationStrategy for GDPR k-anonymity
  - RetentionPolicy for configurable data retention periods
  - StreamingProcessor for memory-efficient large log processing

- Add comprehensive documentation:
  - docs/performance-tuning.md - benchmarking, optimization, caching
  - docs/troubleshooting.md - common issues and solutions
  - docs/logging-integrations.md - ELK, Graylog, Datadog, etc.
  - docs/plugin-development.md - complete plugin development guide

- Improve test coverage (84.41% → 85.07%):
  - ConditionalRuleFactoryInstanceTest (100% coverage)
  - GdprProcessorBuilderEdgeCasesTest (100% coverage)
  - StrategyEdgeCasesTest for ReDoS detection and type parsing
  - 78 new tests, 119 new assertions

- Update TODO.md with current statistics:
  - 141 PHP files, 1,346 tests, 85.07% line coverage

* chore: tests, update actions, sonarcloud issues

* chore: rector

* fix: more sonarcloud fixes

* chore: more fixes

* refactor: copilot review fix

* chore: rector
2025-12-22 13:38:18 +02:00

6.0 KiB

TODO.md - Monolog GDPR Filter

This file tracks remaining issues, improvements, and feature requests for the monolog-gdpr-filter library.

Current Status - PRODUCTION READY

Project Statistics (verified 2025-12-01):

  • 141 PHP files (60 source files, 81 test files)
  • 1,346 tests with 100% success rate (3,386 assertions)
  • 85.07% line coverage, 88.31% method coverage
  • PHP 8.2+ with modern language features and strict type safety
  • Zero Critical Issues: All functionality-blocking bugs resolved
  • Static Analysis: All tools pass cleanly (Psalm, PHPStan, Rector, PHPCS)

Static Analysis Status

All static analysis tools now pass:

  • Psalm Level 5: 0 errors
  • PHPStan Level 6: 0 errors
  • Rector: No changes needed
  • PHPCS: 0 errors, 0 warnings

Completed Items (2025-12-01)

Developer Experience

  • Added recovery mechanism for failed masking operations
    • src/Recovery/FailureMode.php - Enum for failure modes (FAIL_OPEN, FAIL_CLOSED, FAIL_SAFE)
    • src/Recovery/RecoveryStrategy.php - Interface for recovery strategies
    • src/Recovery/RecoveryResult.php - Value object for recovery outcomes
    • src/Recovery/RetryStrategy.php - Retry with exponential backoff
    • src/Recovery/FallbackMaskStrategy.php - Type-aware fallback values
  • Improved error context in audit logging with detailed context
    • src/Audit/ErrorContext.php - Standardized error information with sensitive data sanitization
    • src/Audit/AuditContext.php - Structured context for audit entries with operation types
    • src/Audit/StructuredAuditLogger.php - Enhanced audit logger wrapper
  • Created interactive demo/playground for pattern testing
    • demo/PatternTester.php - Pattern testing utility
    • demo/index.php - Web API endpoint
    • demo/templates/playground.html - Interactive web interface

Code Quality

  • Fixed all PHPCS Warnings (81 warnings → 0):
    • Added missing PHPDoc documentation blocks
    • Fixed line length and spacing formatting issues
    • Full PSR-12 compliance achieved

Framework Integration

  • Created Symfony integration guide - docs/symfony-integration.md
  • Added PSR-3 logger decorator pattern example - docs/psr3-decorator.md
  • Created Docker development environment - docker/Dockerfile, docker/docker-compose.yml
  • Added examples for other popular frameworks - docs/framework-examples.md
    • CakePHP, CodeIgniter 4, Laminas, Yii2, PSR-15 middleware

Architecture

  • Extended Strategy Pattern support:
    • src/Strategies/CallbackMaskingStrategy.php - Wraps custom callbacks as strategies
    • Factory methods: constant(), hash(), partial() for common use cases

Advanced Features (Completed 2025-12-01)

  • Support masking arrays/objects in message strings
    • src/SerializedDataProcessor.php - Handles print_r, var_export, serialize output formats
  • Add data anonymization with k-anonymity
    • src/Anonymization/KAnonymizer.php - K-anonymity implementation for GDPR compliance
    • src/Anonymization/GeneralizationStrategy.php - Age, date, location, numeric range strategies
  • Add retention policy support
    • src/Retention/RetentionPolicy.php - Configurable retention periods with actions (delete, anonymize, archive)
  • Add data portability features (export masked logs)
    • src/Streaming/StreamingProcessor.php::processToFile() - Export processed logs to files
  • Implement streaming processing for very large logs
    • src/Streaming/StreamingProcessor.php - Memory-efficient chunked processing with generators

Architecture Improvements (Completed 2025-12-01)

  • Refactor to follow Single Responsibility Principle more strictly
    • src/MaskingOrchestrator.php - Extracted masking coordination from GdprProcessor
  • Reduce coupling with Adbar\Dot library (create abstraction)
    • src/Contracts/ArrayAccessorInterface.php - Abstraction interface
    • src/ArrayAccessor/DotArrayAccessor.php - Implementation using adbario/php-dot-notation
    • src/ArrayAccessor/ArrayAccessorFactory.php - Factory for creating accessors
  • Add dependency injection container support
    • src/Builder/GdprProcessorBuilder.php - Fluent builder for configuration
  • Replace remaining static methods for better testability
    • src/Factory/AuditLoggerFactory.php - Instance-based factory for audit loggers
    • src/PatternValidator.php - Instance methods added (static methods deprecated)
  • Implement plugin architecture for custom processors
    • src/Contracts/MaskingPluginInterface.php - Contract for masking plugins
    • src/Plugins/AbstractMaskingPlugin.php - Base class with no-op defaults
    • src/Builder/PluginAwareProcessor.php - Wrapper with pre/post processing hooks

Documentation (Completed 2025-12-01)

  • Create performance tuning guide
    • docs/performance-tuning.md - Benchmarking, pattern optimization, memory management, caching, streaming
  • Add troubleshooting guide with common issues
    • docs/troubleshooting.md - Installation, pattern matching, performance, memory, integration issues
  • Add integration examples with popular logging solutions
    • docs/logging-integrations.md - ELK, Graylog, Datadog, New Relic, Sentry, Papertrail, Loggly, AWS CloudWatch, Google Cloud, Fluentd
  • Create plugin development guide
    • docs/plugin-development.md - Comprehensive guide for creating custom masking plugins (interface, hooks, priority, use cases)

Development Notes

  • All critical, high, medium, and low priority functionality is complete
  • Project is production-ready with comprehensive test coverage (85.07% line coverage)
  • Static analysis tools all pass - maintain this standard
  • Use composer lint:fix for automated code quality improvements
  • Follow linting policy: fix issues, don't suppress unless absolutely necessary
  • Run demo: php -S localhost:8080 demo/index.php

Last Updated: 2025-12-01 Production Status: Ready All Items: Complete