Charon/docs/reports/qa_crowdsec_implementation.md

QA Audit Report: CrowdSec Implementation

Report Details

• Date: December 12, 2025
• QA Role: QA_Security
• Scope: Complete QA audit of Charon codebase including CrowdSec integration verification

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Summary

All mandatory checks passed successfully. Several linting issues were found and immediately fixed.

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Check Results

1. Pre-commit on All Files

Status: ✅ PASS

Details:

• Ran: .venv/bin/pre-commit run --all-files
• All hooks passed including:
  • Go Vet
  • Check .version matches latest Git tag
  • Prevent large files
  • Prevent CodeQL DB artifacts
  • Prevent data/backups commits
  • Frontend TypeScript Check
  • Frontend Lint (Fix)
• Go test coverage: 85.2% (meets minimum 85%)

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2. Backend Build

Status: ✅ PASS

Details:

• Ran: cd backend && go build ./...
• No compilation errors

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3. Backend Tests

Status: ✅ PASS

Details:

• Ran: cd backend && go test ./...
• All test packages passed:
  • internal/api/handlers - 21.2s
  • internal/api/routes - 0.04s
  • internal/api/tests - 1.2s
  • internal/caddy - 1.4s
  • internal/services - 29.5s
  • All other packages (cached/passed)

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4. Frontend Type Check

Status: ✅ PASS

Details:

• Ran: cd frontend && npm run type-check
• TypeScript compilation: No errors

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5. Frontend Tests

Status: ✅ PASS

Details:

• Ran: cd frontend && npm run test
• Results:
  • Test Files: 84 passed
  • Tests: 756 passed, 2 skipped
  • Duration: 55.98s

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6. GolangCI-Lint

Status: ✅ PASS (after fixes)

Initial Issues Found: 9 issues

Issues Fixed:

File	Issue	Fix Applied
internal/api/handlers/cerberus_logs_ws_test.go:101,169,248,325,399	bodyclose: response body must be closed	Added //nolint:bodyclose comment - WebSocket Dial response body is consumed by the dial
internal/api/handlers/cerberus_logs_ws_test.go:442,445	deferInLoop: Possible resource leak, 'defer' is called in the 'for' loop	Moved defer outside loop into a single cleanup function
internal/api/handlers/cerberus_logs_ws_test.go:488	httpNoBody: http.NoBody should be preferred to the nil request body	Changed nil to http.NoBody
internal/caddy/config_extra_test.go:302	filepathJoin: "/data" contains a path separator	Used string literal /data/logs/access.log instead of filepath.Join
internal/services/log_watcher.go:91	typeUnparen: could simplify type conversion	Added explanatory nolint comment - conversion required for channel comparison
internal/services/log_watcher.go:302	equalFold: consider replacing with strings.EqualFold	Replaced with strings.EqualFold(k, key)
internal/services/log_watcher.go:310	builtinShadowDecl: shadowing of predeclared identifier: min	Renamed function from min to minInt

Final Result: 0 issues

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7. Docker Build

Status: ✅ PASS

Details:

• Ran: docker build --build-arg VCS_REF=$(git rev-parse HEAD) -t charon:local .
• Image built successfully: sha256:ee53c99130393bdd8a09f1d06bd55e31f82676ecb61bd03842cbbafb48eeea01
• Frontend build: ✓ built in 6.77s
• All stages completed successfully

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8. CrowdSec Startup Test

Status: ✅ PASS

Details:

• Ran: bash scripts/crowdsec_startup_test.sh
• All 6 checks passed:

Check	Description	Result
1	No fatal 'no datasource enabled' error	✅ PASS
2	CrowdSec LAPI health (127.0.0.1:8085/health)	✅ PASS
3	Acquisition config exists with 'source:' definition	✅ PASS
4	Installed parsers (found 4)	✅ PASS
5	Installed scenarios (found 46)	✅ PASS
6	CrowdSec process running	✅ PASS

CrowdSec Components Verified:

• LAPI: {"status":"up"}
• Acquisition: Configured for Caddy logs at /var/log/caddy/access.log
• Parsers: crowdsecurity/caddy-logs, geoip-enrich, http-logs, syslog-logs
• Scenarios: 46 security scenarios installed (including CVE detections, Log4j, etc.)

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Final Status

Check	Status
Pre-commit	✅ PASS
Backend Build	✅ PASS
Backend Tests	✅ PASS
Frontend Type Check	✅ PASS
Frontend Tests	✅ PASS
GolangCI-Lint	✅ PASS
Docker Build	✅ PASS
CrowdSec Startup Test	✅ PASS

Overall Result: ✅ ALL CHECKS PASSED

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Files Modified During Audit

1. backend/internal/api/handlers/cerberus_logs_ws_test.go

   • Added nolint directives for bodyclose on WebSocket Dial calls
   • Fixed defer in loop resource leak
   • Used http.NoBody for non-WebSocket request test

2. backend/internal/caddy/config_extra_test.go

   • Fixed filepath.Join with path separator issue
   • Removed unused import path/filepath

3. backend/internal/services/log_watcher.go

   • Renamed min function to minInt to avoid shadowing builtin
   • Used strings.EqualFold for case-insensitive comparison
   • Added nolint comment for required type conversion

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Recommendations

None - all checks pass and the codebase is in good condition.

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Report generated by QA_Security audit process