docs(09-06): add phase 09 completion summary
Documents all 4 RECON-INFRA requirement IDs as complete, summarizes decisions (per-source limiters, default-allow robots, SHA256 dedup, UA pool of 10), lists handoff contract for Phases 10-16.
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salvacybersec
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.planning/phases/09-osint-infrastructure/09-PHASE-SUMMARY.md
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---
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phase: 09-osint-infrastructure
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plan: phase-summary
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subsystem: infra
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tags: [recon, osint, rate-limiting, robots-txt, stealth, dedup, ants]
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requires:
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- phase: 01-foundation
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provides: engine.Finding type, ants worker pool pattern
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provides:
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- ReconSource interface for OSINT sources (Phases 10-16)
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- Engine with parallel fanout via ants pool
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- Per-source LimiterRegistry (golang.org/x/time/rate)
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- Stealth mode (UA rotation + jitter)
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- RobotsCache with 1h TTL and default-allow on failure
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- Cross-source Dedup by SHA256(provider|masked|source)
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- keyhunter recon full / recon list CLI commands
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- ExampleSource stub proving the pipeline
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affects:
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- 10-github-recon
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- 11-shodan-recon
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- 12-pastebin-recon
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- 13-search-engine-recon
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- 14-wayback-recon
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- 15-huggingface-recon
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- 16-misc-recon
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tech-stack:
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added:
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- github.com/temoto/robotstxt (robots.txt parsing)
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patterns:
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- ReconSource interface — every OSINT source implements 6 methods
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- Per-source rate.Limiter owned by LimiterRegistry keyed on source name
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- Default-allow semantics on robots fetch/parse failure
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- Dedup via stable SHA256(provider|masked|source) hash, first-seen wins
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- SourceType tagged "recon:<name>" for downstream storage unification
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key-files:
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created:
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- pkg/recon/source.go
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- pkg/recon/engine.go
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- pkg/recon/limiter.go
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- pkg/recon/stealth.go
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- pkg/recon/robots.go
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- pkg/recon/dedup.go
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- pkg/recon/example.go
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- pkg/recon/integration_test.go
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- cmd/recon.go
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modified:
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- go.mod (added temoto/robotstxt)
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key-decisions:
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- "Per-source rate limiters — no central limiter (RECON-INFRA-05)"
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- "Default-allow on robots.txt fetch/parse failure to avoid silently disabling sources"
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- "Dedup key = SHA256(provider|masked|source); distinct source URLs are kept"
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- "UA pool of 10 realistic browsers covering Chrome/Firefox/Safari/Edge on Win/Mac/Linux/iOS/Android"
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- "SourceType prefix 'recon:<name>' unifies recon findings with file/git/stdin through engine.Finding"
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- "Engine does NOT dedup internally; callers invoke recon.Dedup explicitly"
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patterns-established:
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- "ReconSource interface: Name/RateLimit/Burst/RespectsRobots/Enabled/Sweep"
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- "Source registration via Engine.Register; Phases 10-16 add sources in buildReconEngine() or package init()"
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- "Integration tests live alongside unit tests in pkg/recon/ using the same package (not _test package)"
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requirements-completed:
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- RECON-INFRA-05
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- RECON-INFRA-06
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- RECON-INFRA-07
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- RECON-INFRA-08
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duration: "phase"
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completed: 2026-04-05
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---
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# Phase 9: OSINT Infrastructure Summary
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**Recon framework with ReconSource interface, per-source rate limiting, stealth UA rotation, robots.txt compliance, and ants-powered parallel sweep — ready for sources in Phases 10-16.**
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## Accomplishments
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- `pkg/recon` package created with 7 production files + full unit + integration tests
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- `ReconSource` interface defined and proven via `ExampleSource` stub
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- `Engine.SweepAll` fans out to all registered sources in parallel via ants pool
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- `LimiterRegistry` provides isolated per-source `*rate.Limiter` instances with optional stealth jitter
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- `RobotsCache` fetches, caches (1h TTL), and enforces robots.txt with default-allow failure mode
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- `Dedup` collapses duplicate findings across sources via SHA256(provider|masked|source)
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- `keyhunter recon full` and `keyhunter recon list` CLI commands wired in `cmd/recon.go`
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- End-to-end integration test (`pkg/recon/integration_test.go`) wires Engine + Limiter + Stealth + Robots + Dedup against a synthetic source
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## Requirements Closed
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| ID | Description | Evidence |
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| --------------- | --------------------------------------------- | ----------------------------------------------------- |
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| RECON-INFRA-05 | Per-source rate limiting via LimiterRegistry | pkg/recon/limiter.go + limiter_test.go + integration |
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| RECON-INFRA-06 | Stealth mode (UA rotation + jitter) | pkg/recon/stealth.go + limiter.go Wait jitter path |
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| RECON-INFRA-07 | robots.txt compliance, cache, default-allow | pkg/recon/robots.go + robots_test.go + integration |
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| RECON-INFRA-08 | Parallel sweep orchestrator with dedup | pkg/recon/engine.go + dedup.go + integration |
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## Plans in Phase 9
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1. **09-01** Engine + ReconSource interface + ExampleSource
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2. **09-02** LimiterRegistry (rate limiting + stealth jitter)
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3. **09-03** Dedup (SHA256 hash, first-seen wins)
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4. **09-04** RobotsCache (1h TTL, default-allow on failure)
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5. **09-05** Stealth UA pool + CLI wiring (`cmd/recon.go`)
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6. **09-06** Integration test + phase summary (this plan)
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## Key Decisions
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- **Per-source rate limiters, not central** — each OSINT source owns its bucket; matches TruffleHog pattern and keeps a slow source from starving fast ones
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- **Default-allow on robots fetch failure** — a broken `/robots.txt` endpoint must not silently disable recon; errors are swallowed and `true` is returned
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- **Dedup key = SHA256(provider|masked|source)** — distinct source URLs for the same masked key are kept so operators see every leak location
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- **UA pool of 10** — spans Chrome/Firefox/Safari/Edge across Win/macOS/Linux/iOS/Android for realistic fingerprint distribution
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- **`engine.Finding` reused** — recon findings flow through the same storage/verification paths as file/git findings; only `SourceType` is prefixed `recon:`
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- **Engine does not dedup** — callers invoke `recon.Dedup` explicitly; keeps the Engine responsibility narrow (fanout only) and allows callers to access pre-dedup raw data
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## New Dependencies
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- `github.com/temoto/robotstxt` — small, well-maintained robots.txt parser used by RobotsCache
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## CLI Surface
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```
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keyhunter recon full [--stealth] [--respect-robots] [--query=STRING]
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keyhunter recon list
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```
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Phase 9 ships with `ExampleSource` only; Phases 10-16 register real sources via `buildReconEngine()` in `cmd/recon.go` (or via package-init side effects once the pattern is established).
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## Handoff to Phase 10
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- `ReconSource` interface is frozen for the phase block — Phases 10-16 can implement it confidently
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- New sources register in `cmd/recon.go:buildReconEngine()` with a single `e.Register(...)` call
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- Each source should:
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1. Return a stable lowercase `Name()`
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2. Declare its own `RateLimit()` / `Burst()` values
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3. Set `RespectsRobots()` to true for HTML scrapers, false for authenticated APIs
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4. Tag findings with `SourceType = "recon:<name>"`
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5. Exit promptly on `ctx.Done()` in `Sweep`
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- Integration test pattern in `pkg/recon/integration_test.go` shows how to wire a synthetic source for source-specific tests
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## Known Gaps (Deferred)
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- **Proxy / TOR support** — out of scope; can be added via `http.Transport` injection later
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- **Per-source retry with backoff** — each source handles its own retries; no framework-level retry
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- **Distributed rate limiting** — out of scope; per-instance limiters only
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- **Webhook notifications on source exhaustion** — deferred to Phase 17 (Telegram)
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## Next Phase Readiness
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Phase 10 (GitHub recon) can start immediately. The `pkg/recon` contract is stable and proven end-to-end by `TestReconPipelineIntegration` and `TestRobotsOnlyWhenRespectsRobots`.
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---
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*Phase: 09-osint-infrastructure*
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*Completed: 2026-04-05*
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