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⚠️ Historischer Auditbericht – Befunde ohne aktuellen Codebeleg mit <!-- TODO: add source file evidence --> markieren. Veraltete Befunde entfernen.

Audit Report — Core Module

Last Audit: 2026-05-31
Auditor: Copilot
Status: ✅ Pass

Summary

Metric Result
Build System Registration ✅ Verified
Source Files 2 direct + 8 in subdirectories (src/core/, core/adapters/, core/concerns/)
Test Coverage ✅ Production — core interfaces covered; secrets providers (InMemorySecrets, EnvSecretsProvider) covered
Open TODOs 1 documented TODO (plugin adapter loading, Issue #1706)
Open Stubs 0
Security Issues None

Build System

  • Core source files registered in cmake/CMakeLists.txt and cmake/ModularBuild.cmake.
  • OpenTelemetry adapter guarded by THEMIS_ENABLE_OTEL.
  • Prometheus metrics adapter guarded by THEMIS_ENABLE_PROMETHEUS.
  • Jaeger and Zipkin adapters guarded by THEMIS_ENABLE_JAEGER and THEMIS_ENABLE_ZIPKIN.

Source Files Audited

File Purpose
core/concerns/concerns_context.cpp Central DI hub: logger, tracer, metrics, cache, health checks
core/concerns/context_propagation.cpp W3C TraceContext propagation (traceparent/tracestate)
core/concerns/i_logger.cpp ILogger interface (SpdlogLoggerAdapter is header-only in include/core/concerns/spdlog_logger_adapter.h)
core/concerns/lockfree_metrics.cpp Lock-free metrics implementation
core/concerns/prometheus_metrics.cpp Prometheus metrics adapter
core/concerns/redis_cache.cpp Redis-backed distributed cache with consistent hashing and pub/sub invalidation
core/concerns/zero_copy_logger.cpp Zero-copy logger with string_view hot-path API
core/adapters/otel_tracer.cpp OpenTelemetry OTLP tracer adapter with circuit-breaker
security_initialization.cpp Security context initialization
index_interface_stubs.cpp Index interface stubs

Test Coverage

  • ConcernsContext factory methods: production, testing, custom configurations
  • SpdlogLoggerAdapter and NoopLogger: message formatting, severity levels
  • OpenTelemetry adapter: circuit breaker behavior, OTLP export
  • Prometheus adapter: counter, gauge, histogram registration
  • W3C TraceContext propagation: traceparent extraction and injection
  • Health check interface: live and ready aggregation
  • Dynamic log level adjustment
  • Feature flag interface
  • Secrets providers: InMemorySecrets (map-backed) and EnvSecretsProvider (env-var-backed)
  • ZeroCopyLogger: string_view hot-path, PII redaction, concurrent json_mode_ switching (41 tests in tests/test_zero_copy_logging.cpp)
  • RedisCache: consistent hashing, TTL, pub/sub invalidation, deadlock-free invalidatePattern

Sourcecode Verification (Module: core)

  • Scope-Dateien:
    • src/core/README.md
    • src/core/ARCHITECTURE.md
    • src/core/ROADMAP.md
    • src/core/FUTURE_ENHANCEMENTS.md
    • src/core/CHANGELOG.md
    • src/core/SECURITY.md
    • src/core/AUDIT.md
    • src/core/PRODUCTION_REQUIREMENTS.md
    • src/core/PERFORMANCE_EXPECTATIONS.md
  • Gepruefte Symbole/Verhalten:
    • ConcernsContext::create(const Config&), Adapter-Selektion und Produktions-Checks -> src/core/concerns/concerns_context.cpp
    • Runtime-Replacement (replaceLogger, replaceTracer, replaceMetrics, replaceCache) inkl. Null-Guard -> src/core/concerns/concerns_context.cpp
    • Produktionsmodus-Erkennung (ProductionMode::isEnabled) -> include/core/production_mode.h
    • TraceContext-Extraktion/-Injection (W3CTraceContextPropagator::extract/inject) -> include/core/concerns/w3c_trace_context_propagator.h
    • Konfigurationsvalidierung (validateLogConfig, validateTracingConfig, validateAdapterConfig, validateCacheConfig) -> include/core/config_validator.h
  • Gepruefte Feature-/Laufzeit-Gates:
    • Tracer-/Metrics-Adapterwahl (otel/jaeger/zipkin/noop, prometheus/noop) und Fail-Closed in Production -> src/core/concerns/concerns_context.cpp
    • Security fail-closed bei ungueltiger Provider-/JWT-Konfiguration -> src/core/security_initialization.cpp
  • Ergebnis:
    • Alle dokumentierten Kern-Aussagen in den Core-Moduldokumenten sind gegen Sourcecode abgeglichen.
    • Offene Zukunftspunkte sind in ROADMAP.md/FUTURE_ENHANCEMENTS.md gehalten, Historie in CHANGELOG.md.
    • Unbelegte oder zu starke Aussagen wurden in der aktuellen Review-Runde entfernt/abgeschaerft.

Findings

Resolved

  • Circuit breaker for OTLP exporter — prevents trace export failures from blocking request processing.
  • Trace correlation in logs — logWithTrace() auto-injects trace/span/request IDs; no manual correlation needed.
  • W3C TraceContext validation — malformed traceparent values are silently ignored; no propagation of invalid trace contexts.
  • Secrets interface — InMemorySecrets and EnvSecretsProvider implemented; config-driven selection via Config::secretsAdapter; ConfigValidator extended; 30+ tests (Issue #1417).

Open

  • Plugin-based adapter loading — recompile required to change adapter implementations (Issue #1706).

Compliance

  • Audit event interface supports SOC 2 and HIPAA audit trail requirements.
  • Trace correlation IDs enable incident forensics without exposing PII.
  • Health endpoints provide SLA visibility without exposing internal configuration.
  • Dynamic log level adjustment supports production debugging without service restart.