From d0396bb3848306fced1e050254b04343dbdc3e60 Mon Sep 17 00:00:00 2001 From: salvacybersec Date: Sun, 5 Apr 2026 12:22:49 +0300 Subject: [PATCH] docs(01-04): complete scan engine plan - SUMMARY.md with pipeline implementation details - STATE.md updated with progress and decisions - ROADMAP.md and REQUIREMENTS.md updated --- .planning/REQUIREMENTS.md | 6 +- .planning/ROADMAP.md | 6 +- .planning/STATE.md | 12 +- .../phases/01-foundation/01-04-SUMMARY.md | 147 ++++++++++++++++++ 4 files changed, 160 insertions(+), 11 deletions(-) create mode 100644 .planning/phases/01-foundation/01-04-SUMMARY.md diff --git a/.planning/REQUIREMENTS.md b/.planning/REQUIREMENTS.md index 0e7b914..18c3da2 100644 --- a/.planning/REQUIREMENTS.md +++ b/.planning/REQUIREMENTS.md @@ -9,11 +9,11 @@ Requirements for initial release. Each maps to roadmap phases. ### Core Engine -- [ ] **CORE-01**: Scanner engine detects API keys using keyword pre-filtering + regex matching pipeline +- [x] **CORE-01**: Scanner engine detects API keys using keyword pre-filtering + regex matching pipeline - [x] **CORE-02**: Provider definitions loaded from YAML files embedded at compile time via Go embed - [x] **CORE-03**: Provider registry manages 108+ provider definitions with pattern, keyword, confidence, and verify metadata -- [ ] **CORE-04**: Entropy analysis as secondary signal for low-confidence providers (generic key formats) -- [ ] **CORE-05**: Worker pool parallelism with configurable worker count (default: CPU count) +- [x] **CORE-04**: Entropy analysis as secondary signal for low-confidence providers (generic key formats) +- [x] **CORE-05**: Worker pool parallelism with configurable worker count (default: CPU count) - [x] **CORE-06**: Aho-Corasick keyword pre-filter runs before regex for 10x performance on large files - [ ] **CORE-07**: mmap-based large file reading for memory efficiency diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md index c8a4abc..19de514 100644 --- a/.planning/ROADMAP.md +++ b/.planning/ROADMAP.md @@ -46,10 +46,10 @@ Decimal phases appear between their surrounding integers in numeric order. **Plans**: 5 plans Plans: -- [ ] 01-01-PLAN.md — Go module init, dependency installation, test scaffolding and testdata fixtures +- [x] 01-01-PLAN.md — Go module init, dependency installation, test scaffolding and testdata fixtures - [x] 01-02-PLAN.md — Provider registry: YAML schema, embed loader, Aho-Corasick automaton, Registry struct -- [ ] 01-03-PLAN.md — Storage layer: AES-256-GCM encryption, Argon2id key derivation, SQLite + Finding CRUD -- [ ] 01-04-PLAN.md — Scan engine pipeline: keyword pre-filter, regex+entropy detector, FileSource, ants worker pool +- [x] 01-03-PLAN.md — Storage layer: AES-256-GCM encryption, Argon2id key derivation, SQLite + Finding CRUD +- [x] 01-04-PLAN.md — Scan engine pipeline: keyword pre-filter, regex+entropy detector, FileSource, ants worker pool - [ ] 01-05-PLAN.md — CLI wiring: scan, providers list/info/stats, config init/set/get, output table ### Phase 2: Tier 1-2 Providers diff --git a/.planning/STATE.md b/.planning/STATE.md index d69c4cd..1e87432 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -3,14 +3,14 @@ gsd_state_version: 1.0 milestone: v1.0 milestone_name: milestone status: planning -stopped_at: Completed 01-foundation 01-02-PLAN.md -last_updated: "2026-04-04T21:12:49.099Z" +stopped_at: Completed 01-foundation 01-04-PLAN.md +last_updated: "2026-04-05T09:22:35.186Z" last_activity: 2026-04-04 — Roadmap created, 18 phases defined covering 146 v1 requirements progress: total_phases: 18 completed_phases: 0 total_plans: 5 - completed_plans: 1 + completed_plans: 4 percent: 20 --- @@ -53,6 +53,7 @@ Progress: [██░░░░░░░░] 20% *Updated after each plan completion* | Phase 01-foundation P02 | 9 | 2 tasks | 11 files | +| Phase 01-foundation P04 | 5min | 2 tasks | 12 files | ## Accumulated Context @@ -67,6 +68,7 @@ Recent decisions affecting current work: - Roadmap: Verification (Phase 5) requires consent prompt + LEGAL.md — not optional polish - [Phase 01-foundation]: Provider YAML in dual locations: providers/ (user-visible) and pkg/providers/definitions/ (embed) — Go embed cannot use '..' paths - [Phase 01-foundation]: Aho-Corasick built with DFA=true at NewRegistry() for O(n) keyword pre-filtering across all providers +- [Phase 01-foundation]: pkg/types/chunk.go breaks engine<->sources circular import; ants pool with WaitGroup+Mutex for detector coordination ### Pending Todos @@ -81,6 +83,6 @@ None yet. ## Session Continuity -Last session: 2026-04-04T21:12:49.095Z -Stopped at: Completed 01-foundation 01-02-PLAN.md +Last session: 2026-04-05T09:22:35.183Z +Stopped at: Completed 01-foundation 01-04-PLAN.md Resume file: None diff --git a/.planning/phases/01-foundation/01-04-SUMMARY.md b/.planning/phases/01-foundation/01-04-SUMMARY.md new file mode 100644 index 0000000..e74f460 --- /dev/null +++ b/.planning/phases/01-foundation/01-04-SUMMARY.md @@ -0,0 +1,147 @@ +--- +phase: 01-foundation +plan: 04 +subsystem: engine +tags: [scanning, aho-corasick, entropy, regex, ants, goroutine-pool, pipeline] + +requires: + - phase: 01-foundation-02 + provides: "Provider Registry with AC() automaton and List() for pattern matching" +provides: + - "Three-stage scanning pipeline: AC pre-filter, regex+entropy detector, results channel" + - "Engine.Scan(ctx, source, config) -> <-chan Finding" + - "Source interface for input adapters" + - "FileSource for single-file scanning" + - "Shannon entropy function" + - "pkg/types.Chunk shared type breaking circular imports" +affects: [cli-scan, input-sources, verification, output-formats] + +tech-stack: + added: [ants/v2, pkg/types] + patterns: [three-stage-channel-pipeline, goroutine-pool-with-waitgroup, overlapping-chunk-reads] + +key-files: + created: + - pkg/types/chunk.go + - pkg/engine/finding.go + - pkg/engine/entropy.go + - pkg/engine/filter.go + - pkg/engine/detector.go + - pkg/engine/sources/source.go + - pkg/engine/sources/file.go + modified: + - pkg/engine/engine.go + - pkg/engine/scanner_test.go + - testdata/samples/anthropic_key.txt + - testdata/samples/multiple_keys.txt + +key-decisions: + - "pkg/types/chunk.go breaks engine<->sources circular import" + - "ants pool with sync.WaitGroup+Mutex for detector stage coordination" + - "FileSource uses os.ReadFile with 256-byte chunk overlap; mmap deferred to Phase 4" + - "Pool.Release() used instead of ReleaseWithTimeout (not in ants/v2 API)" + +patterns-established: + - "Three-stage channel pipeline: Source->KeywordFilter->Detect->resultsChan" + - "Shared types in pkg/types to avoid circular imports between engine and sources" + - "Overlapping chunks (256 bytes) to prevent key splitting at boundaries" + +requirements-completed: [CORE-01, CORE-04, CORE-05, CORE-06] + +duration: 5min +completed: 2026-04-05 +--- + +# Phase 1 Plan 4: Scan Engine Summary + +**Three-stage scanning pipeline with Aho-Corasick pre-filter, regex+entropy detection via ants goroutine pool, and FileSource adapter** + +## Performance + +- **Duration:** 5 min +- **Started:** 2026-04-05T09:16:37Z +- **Completed:** 2026-04-05T09:21:30Z +- **Tasks:** 2 +- **Files modified:** 12 + +## Accomplishments +- Three-stage pipeline (AC keyword filter -> regex+entropy detector -> results channel) working end-to-end +- Shannon entropy function correctly discriminates real keys (>= 3.5 bits/char) from low-entropy strings +- ants v2 goroutine pool with configurable worker count for parallel detection +- FileSource with overlapping chunk reads preventing key splitting at boundaries +- All 12 engine tests pass including pipeline integration tests against real testdata + +## Task Commits + +Each task was committed atomically: + +1. **Task 1: Shared types, Finding, Shannon entropy** - `45cc676` (feat) +2. **Task 2: Pipeline stages, engine, FileSource, tests** - `cea2e37` (feat) + +**Plan metadata:** (pending final commit) + +_Note: TDD tasks had RED-GREEN commits merged into single task commits_ + +## Files Created/Modified +- `pkg/types/chunk.go` - Shared Chunk struct (Data, Source, Offset) breaking circular import +- `pkg/engine/finding.go` - Finding struct with MaskKey for masked key output +- `pkg/engine/entropy.go` - Shannon entropy using math.Log2 (~15 lines) +- `pkg/engine/filter.go` - KeywordFilter using Aho-Corasick automaton +- `pkg/engine/detector.go` - Detect applying regex patterns + entropy threshold +- `pkg/engine/engine.go` - Engine.Scan orchestrating 3-stage pipeline with ants pool +- `pkg/engine/sources/source.go` - Source interface using pkg/types.Chunk +- `pkg/engine/sources/file.go` - FileSource with overlapping chunk reads +- `pkg/engine/scanner_test.go` - 7 integration tests replacing stub tests +- `pkg/engine/entropy_test.go` - 6 unit tests for Shannon and MaskKey +- `testdata/samples/anthropic_key.txt` - Fixed key length for regex match +- `testdata/samples/multiple_keys.txt` - Fixed anthropic key length + +## Decisions Made +- Used `pkg/types/chunk.go` to break the engine<->sources circular import (Go requires this pattern) +- ants Pool.Release() instead of ReleaseWithTimeout (method doesn't exist in current ants/v2 API) +- FileSource reads entire file via os.ReadFile then splits into overlapping chunks -- mmap deferred to Phase 4 +- Mutex protects resultsChan writes from detector goroutines to prevent channel deadlock + +## Deviations from Plan + +### Auto-fixed Issues + +**1. [Rule 1 - Bug] Fixed Anthropic test key lengths too short for regex pattern** +- **Found during:** Task 2 (pipeline integration tests) +- **Issue:** anthropic_key.txt and multiple_keys.txt had Anthropic keys with suffix < 93 chars, failing the `sk-ant-api03-[A-Za-z0-9_\-]{93,}` regex +- **Fix:** Extended synthetic key suffixes to 101 and 102 chars respectively +- **Files modified:** testdata/samples/anthropic_key.txt, testdata/samples/multiple_keys.txt +- **Verification:** Regex matches confirmed, all pipeline tests pass +- **Committed in:** cea2e37 (Task 2 commit) + +**2. [Rule 1 - Bug] Fixed ants API: ReleaseWithTimeout does not exist** +- **Found during:** Task 2 (compilation) +- **Issue:** Plan specified `pool.ReleaseWithTimeout(5*time.Second)` but ants/v2 only has `pool.Release()` +- **Fix:** Changed to `pool.Release()` and removed unused `time` import +- **Files modified:** pkg/engine/engine.go +- **Verification:** Build succeeds, all tests pass +- **Committed in:** cea2e37 (Task 2 commit) + +--- + +**Total deviations:** 2 auto-fixed (2 bugs) +**Impact on plan:** Both fixes necessary for correctness. No scope creep. + +## Issues Encountered +None beyond the auto-fixed deviations above. + +## User Setup Required +None - no external service configuration required. + +## Next Phase Readiness +- Scan engine ready for CLI integration (Plan 05: `keyhunter scan`) +- Engine.Scan() returns `<-chan Finding` ready for any consumer (CLI, web, bot) +- Source interface ready for additional adapters (dir, git, stdin) in Phase 4 + +## Self-Check: PASSED + +All 10 created files verified on disk. Both task commits (45cc676, cea2e37) verified in git log. + +--- +*Phase: 01-foundation* +*Completed: 2026-04-05*