Lukas
e08a16c7dd
Extracted the monolithic import_source() function (776 lines) into focused, testable components with clear single responsibilities: - BlocklistDownloader: HTTP download with exponential backoff retry logic * Handles transient failures (429, 5xx errors, timeouts) * Configurable retry attempts and backoff strategy * 93% test coverage - BlocklistParser: Parse and validate IP addresses * Extract valid IPv4/IPv6 addresses from text * Skip CIDRs and malformed entries gracefully * Separate parsing from validation concerns * 100% test coverage - BanExecutor: Ban execution with error handling * Ban IPs via fail2ban socket * Stop on JailNotFoundError (jail doesn't exist) * Continue on JailOperationError (individual ban failures) * 100% test coverage - BlocklistImportWorkflow: Thin orchestrator * Coordinates the download → parse → ban → log flow * Pre-warms geo cache with newly banned IPs * 96% test coverage - blocklist_service.py: Maintains public API * Source CRUD (create, read, update, delete) * URL validation and preview functionality * Scheduling configuration and import triggers * 92% test coverage Benefits: * Each component is independently testable with mock dependencies * Error handling is explicit and localized * Components can evolve independently * Logging is contextual and clear * Retry and transient error handling are isolated Testing: * All 36 existing blocklist_service tests pass * All 13 blocklist import task tests pass * Added 17 comprehensive component unit tests * Combined 96%+ coverage on new modules * Zero type errors in new code Documentation: * Updated Refactoring.md with detailed architecture notes * Added component architecture diagram to Architekture.md * Documented ownership and responsibilities of each component Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>