Commit Graph

9 Commits

Author SHA1 Message Date
clawbot
4358921374 Decide request TLS in one place, per request (closes #269)
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Two places decided whether a request was TLS, by two different means,
and they disagreed.

The session cookie's Secure attribute was fixed at startup from
!Config.IsDev(). "dev" is the environment when WEBHOOKER_ENVIRONMENT is
unset, so a deployment terminating TLS at a proxy without also setting
the environment shipped the authentication cookie with no Secure
attribute -- on the same response as a CSRF cookie that had one. It
failed silently: everything kept working, so nothing prompted anyone to
look.

The CSRF middleware's per-request check compared X-Forwarded-Proto with
== "https" exactly, so "HTTPS", "https, http" and "https,https" all took
the plaintext path. Uppercase is legal for a case-insensitive token and
the comma forms are what a proxy chained behind another proxy emits by
appending rather than replacing. On that path gorilla/csrf stops
enforcing the strict Referer check on a site that genuinely is HTTPS.

Both now go through internal/reqtls.IsTLS, which folds case and takes
the leftmost comma-separated element -- the hop nearest the client, and
so the one a cookie's Secure attribute is about. A third package is
needed because internal/middleware already imports internal/session, so
session cannot import middleware back.

Per-request beat a startup warning for the session cookie because it
turned out to need no restructuring: gorilla/sessions gives every
session its own copy of the store's Options and renders the cookie from
that copy, and every session-cookie write here already goes through
Session.Save or Session.Regenerate, both of which hold the request. The
store's template Secure becomes true so that a write path added later
which forgets to track the transport fails visibly instead of silently
dropping Secure.

The flag tracks the transport in both directions rather than latching
on. Secure over plaintext is discarded by the browser without an error,
which would make a plain-HTTP local run impossible to log into -- and
would also void the deletion cookies in Destroy and Regenerate, leaving
a session the user just tried to end still live.

A third site that makes this decision, internal/handlers'
BaseURL construction, assigns the raw header straight into the URL
scheme. It is left alone here and filed separately.
2026-08-24 00:58:38 +00:00
5f18bc3eae Align session codec max-age with the 7-day cap (closes #108)
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2026-08-14 06:17:43 +02:00
c2cd2c440b Add inactivity-based session timeout (closes #66) (#105)
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Sessions now carry a server-enforced idle deadline (SESSION_IDLE_TIMEOUT,
default 24h) alongside the 7-day absolute cap, refreshed on authenticated
activity. Activity never extends the absolute cap.
2026-08-10 16:12:40 +02:00
afe88c601a refactor: use pinned golangci-lint Docker image for linting (#55)
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Closes [issue #50](#50)

## Summary

Refactors the Dockerfile to use a separate lint stage with a pinned golangci-lint Docker image, following the pattern used by [sneak/pixa](https://git.eeqj.de/sneak/pixa). This replaces the previous approach of installing golangci-lint via curl in the builder stage.

## Changes

### Dockerfile
- **New `lint` stage** using `golangci/golangci-lint:v2.11.3` (Debian-based, pinned by sha256 digest) as a separate build stage
- **Builder stage** depends on lint via `COPY --from=lint /src/go.sum /dev/null` — build won't proceed unless linting passes
- **Go bumped** from 1.24 to 1.26.1 (`golang:1.26.1-bookworm`, pinned by sha256)
- **golangci-lint bumped** from v1.64.8 to v2.11.3
- All three Docker images (golangci-lint, golang, alpine) pinned by sha256 digest
- Debian-based golangci-lint image used (not Alpine) because mattn/go-sqlite3 CGO does not compile on musl (off64_t)

### Linter Config (.golangci.yml)
- Migrated from v1 to v2 format (`version: "2"` added)
- Removed linters no longer available in v2: `gofmt` (handled by `make fmt-check`), `gosimple` (merged into `staticcheck`), `typecheck` (always-on in v2)
- Same set of linters enabled — no rules weakened

### Code Fixes (all lint issues from v2 upgrade)
- Added package comments to all packages
- Added doc comments to all exported types, functions, and methods
- Fixed unchecked errors flagged by `errcheck` (sqlDB.Close, os.Setenv in tests, resp.Body.Close, fmt.Fprint)
- Fixed unused parameters flagged by `revive` (renamed to `_`)
- Fixed `gosec` G120 warnings: added `http.MaxBytesReader` before `r.ParseForm()` calls
- Fixed `staticcheck` QF1012: replaced `WriteString(fmt.Sprintf(...))` with `fmt.Fprintf`
- Fixed `staticcheck` QF1003: converted if/else chain to tagged switch
- Renamed `DeliveryTask` → `Task` to avoid package stutter (`delivery.Task` instead of `delivery.DeliveryTask`)
- Renamed shadowed builtin `max` parameter to `upperBound` in `cryptoRandInt`
- Used `t.Setenv` instead of `os.Setenv` in tests (auto-restores)

### README.md
- Updated version requirements: Go 1.26+, golangci-lint v2.11+
- Updated Dockerfile description in project structure

## Verification

`docker build .` passes cleanly — formatting check, linting, all tests, and build all succeed.

Co-authored-by: clawbot <clawbot@noreply.git.eeqj.de>
Reviewed-on: #55
Co-authored-by: clawbot <clawbot@noreply.example.org>
Co-committed-by: clawbot <clawbot@noreply.example.org>
2026-03-25 02:16:38 +01:00
60786c5019 feat: add CSRF protection, SSRF prevention, and login rate limiting (#42)
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## Security Hardening

This PR implements three security hardening issues:

### CSRF Protection (closes #35)

- Session-based CSRF tokens with cryptographically random 256-bit generation
- Constant-time token comparison to prevent timing attacks
- CSRF middleware applied to `/pages`, `/sources`, `/source`, and `/user` routes
- Hidden `csrf_token` field added to all 12+ POST forms in templates
- Excluded from `/webhook` (inbound webhook POSTs) and `/api` (stateless API)

### SSRF Prevention (closes #36)

- `ValidateTargetURL()` blocks private/reserved IP ranges at target creation time
- Blocked ranges: `127.0.0.0/8`, `10.0.0.0/8`, `172.16.0.0/12`, `192.168.0.0/16`, `169.254.0.0/16`, `::1`, `fc00::/7`, `fe80::/10`, plus multicast, reserved, test-net, and CGN ranges
- SSRF-safe HTTP transport with custom `DialContext` in the delivery engine for defense-in-depth (prevents DNS rebinding attacks)
- Only `http` and `https` schemes allowed

### Login Rate Limiting (closes #37)

- Per-IP rate limiter using `golang.org/x/time/rate`
- 5 attempts per minute per IP on `POST /pages/login`
- GET requests (form rendering) pass through unaffected
- Automatic cleanup of stale per-IP limiter entries every 5 minutes
- `X-Forwarded-For` and `X-Real-IP` header support for reverse proxies

### Files Changed

**New files:**
- `internal/middleware/csrf.go` + tests — CSRF middleware
- `internal/middleware/ratelimit.go` + tests — Login rate limiter
- `internal/delivery/ssrf.go` + tests — SSRF validation + safe transport

**Modified files:**
- `internal/server/routes.go` — Wire CSRF and rate limit middleware
- `internal/handlers/handlers.go` — Inject CSRF token into template data
- `internal/handlers/source_management.go` — SSRF validation on target creation
- `internal/delivery/engine.go` — SSRF-safe HTTP transport for production
- All form templates — Added hidden `csrf_token` fields
- `README.md` — Updated Security section and TODO checklist

`docker build .` passes (lint + tests + build).

Co-authored-by: clawbot <clawbot@noreply.git.eeqj.de>
Co-authored-by: clawbot <clawbot@eeqj.de>
Co-authored-by: Jeffrey Paul <sneak@noreply.example.org>
Reviewed-on: #42
Co-authored-by: clawbot <clawbot@noreply.example.org>
Co-committed-by: clawbot <clawbot@noreply.example.org>
2026-03-17 12:38:45 +01:00
1fbcf96581 security: add headers middleware, session regeneration, and body size limits (#41)
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## Summary

This PR implements three security hardening measures:

### Security Headers Middleware (closes #34)

Adds a `SecurityHeaders()` middleware applied globally to all routes. Every response now includes:
- `Strict-Transport-Security: max-age=63072000; includeSubDomains; preload`
- `X-Content-Type-Options: nosniff`
- `X-Frame-Options: DENY`
- `Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'`
- `Referrer-Policy: strict-origin-when-cross-origin`
- `Permissions-Policy: camera=(), microphone=(), geolocation=()`

### Session Fixation Prevention (closes #38)

Adds a `Regenerate()` method to the session manager that destroys the old session and creates a new one with a fresh ID, copying all session values. Called after successful login to prevent session fixation attacks.

### Request Body Size Limits (closes #39)

Adds a `MaxBodySize()` middleware using `http.MaxBytesReader` to limit POST/PUT/PATCH request bodies to 1 MB. Applied to all form endpoints (`/pages`, `/sources`, `/source/*`).

## Files Changed

- `internal/middleware/middleware.go` — Added `SecurityHeaders()` and `MaxBodySize()` middleware
- `internal/session/session.go` — Added `Regenerate()` method for session fixation prevention
- `internal/handlers/auth.go` — Updated login handler to regenerate session after authentication
- `internal/server/routes.go` — Added SecurityHeaders globally, MaxBodySize to form route groups
- `README.md` — Documented new middleware in stack, updated Security section, moved items to completed TODO

closes #34, closes #38, closes #39

Co-authored-by: clawbot <clawbot@noreply.git.eeqj.de>
Reviewed-on: #41
Co-authored-by: clawbot <clawbot@noreply.example.org>
Co-committed-by: clawbot <clawbot@noreply.example.org>
2026-03-05 12:32:56 +01:00
9b9ee1718a refactor: auto-generate session key and store in database
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Remove SESSION_KEY env var requirement. On first startup, a
cryptographically secure 32-byte key is generated and stored in a new
settings table. Subsequent startups load the key from the database.

- Add Setting model (key-value table) for application config
- Add Database.GetOrCreateSessionKey() method
- Session manager initializes in OnStart after database is connected
- Remove DevSessionKey constant and SESSION_KEY env var handling
- Remove prod validation requiring SESSION_KEY
- Update README: config table, Docker instructions, security notes
- Update config.yaml.example
- Update all tests to remove SessionKey references

Addresses owner feedback on issue #15.
2026-03-01 21:57:19 -08:00
f9a9569015 feat: bring repo up to REPO_POLICIES standards (#6)
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## Summary

This PR brings the webhooker repo into full REPO_POLICIES compliance, addressing both [issue #1](#1) and [issue #2](#2).

## Changes

### New files
- **`cmd/webhooker/main.go`** — The missing application entry point. Uses Uber fx to wire together all internal packages (config, database, logger, server, handlers, middleware, healthcheck, globals, session). Minimal glue code.
- **`REPO_POLICIES.md`** — Fetched from authoritative source (`sneak/prompts`)
- **`.editorconfig`** — Fetched from authoritative source
- **`.dockerignore`** — Sensible Go project exclusions
- **`.gitea/workflows/check.yml`** — CI workflow that runs `docker build .` on push to any branch (Gitea Actions format, actions/checkout pinned by sha256)
- **`configs/config.yaml.example`** — Moved from root `config.yaml`

### Modified files
- **`Makefile`** — Complete rewrite with all REPO_POLICIES required targets: `test`, `lint`, `fmt`, `fmt-check`, `check`, `build`, `hooks`, `docker`, `clean`, plus `dev`, `run`, `deps`
- **`Dockerfile`** — Complete rewrite:
  - Builder: `golang:1.24` (Debian-based, pinned by `sha256:d2d2bc1c84f7...`). Debian needed because `gorm.io/driver/sqlite` pulls `mattn/go-sqlite3` (CGO) which fails on Alpine musl.
  - golangci-lint v1.64.8 installed from GitHub release archive with sha256 verification (v1.x because `.golangci.yml` uses v1 config format)
  - Runs `make check` (fmt-check + lint + test + build) as build step
  - Final stage: `alpine:3.21` (pinned by `sha256:c3f8e73fdb79...`) with non-root user, healthcheck, port 8080
- **`README.md`** — Rewritten with all required REPO_POLICIES sections: description line with name/purpose/category/license/author, Getting Started, Rationale, Design, TODO (integrated from TODO.md), License, Author
- **`.gitignore`** — Fixed `webhooker` pattern to `/webhooker` (was blocking `cmd/webhooker/`), added `config.yaml` to prevent committing runtime config with secrets
- **`static/static.go`** — Removed `vendor` from embed directive (directory was empty/missing)
- **`internal/database/database_test.go`** — Fixed to use in-memory config via `afero.MemMapFs` instead of depending on `config.yaml` on disk. Test is now properly isolated.
- **`go.mod`/`go.sum`** — `go mod tidy`

### Removed files
- **`TODO.md`** — Content integrated into README.md TODO section
- **`config.yaml`** — Moved to `configs/config.yaml.example`

## Verification
- `docker build .` passes (lint , test , build )
- All existing tests pass with no modifications to assertions or test logic
- `.golangci.yml` untouched

closes #1
closes #2

Co-authored-by: clawbot <clawbot@noreply.git.eeqj.de>
Reviewed-on: #6
Co-authored-by: clawbot <clawbot@noreply.example.org>
Co-committed-by: clawbot <clawbot@noreply.example.org>
2026-03-01 19:01:44 +01:00
1244f3e2d5 initial 2026-03-01 22:52:08 +07:00