J3vbandClaude Opus 5 d6c768cb90 feat(invariants): add server invariant rules and close five deadlock blind spots (#1383)
* feat(invariants): add the invariant-rule harness and the syncutil-locks rule

* fix(ws,service): route the last five raw mutexes through syncutil

The -tags deadlock CI pass only observes locks declared via syncutil, whose
Mutex/RWMutex are build-tag aliases. These five were declared as raw sync
types and were invisible to it, including the hub voice key-holder lock and
the permission and role caches.

TestServerInvariants now gates the tree against regressions.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(invariants): walk the tree through os.Root to close a symlink TOCTOU

gosec G122: reading a filepath.WalkDir-supplied path is race-prone, since a
symlink swapped between the walk and the read escapes the intended tree.
os.Root confines every read to the root and cannot be traversed out of.

Walking the root's fs.FS also yields slash-separated paths already relative
to it, so the filepath.Rel and ToSlash conversion is no longer needed.

* fix(invariants): close syncutil-locks evasions, isolate per-rule tests, harden the gate

- I1: TestServerInvariants now asserts every registered Rule.Scope
  directory exists and holds at least one non-test .go file, so the
  gate cannot pass by scanning nothing.
- I2: split CheckSource into a thin wrapper over an unexported
  checkSourceWith(rules, ...), so TestSyncutilLocks tests the
  syncutil-locks rule in isolation instead of the whole registry.
- I3: broaden checkSyncutilLocks to a single SelectorExpr match (any
  sync.Mutex/sync.RWMutex reference bound via f.Imports, aliases
  included) instead of only *ast.Field/*ast.ValueSpec. Catches :=
  composite literals, untyped var specs, type aliases, and
  []sync.Mutex/map[K]sync.Mutex, none of which the old rule saw. A
  dot-import of "sync" is now its own violation, since it would
  otherwise let a bare Mutex evade the selector match entirely.
- M2: suppression now keys off the violation's own Rule id
  (allowed[v.Line][v.Rule]) rather than the running rule's ID, so a
  rule that ever emits a sub-id isn't silently unsuppressible.
- M3: Run sorts with sort.SliceStable, since an unreasoned allow
  comment and the violation it fails to suppress can share a
  file:line.
- M4/M5/M1-partial: add a build-tag-gated fixture test, document that
  allow comments must be same-line, and correct the skipDirs comment
  to describe both the generated-code and gitignored-runtime-dir
  cases it actually covers.

All ten original TestSyncutilLocks subtests pass unchanged; six new
subtests cover the evasions above.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs(server): point at the syncutil-locks invariant gate

Server/CLAUDE.md told developers not to hand-roll around syncutil but
never said it's enforced. Note that Server/invariants/ checks it at
go test time and that exceptions are greppable via
grep -rn "invariant:allow" Server/.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-16 17:05:06 +02:00
2026-08-15 21:37:20 +02:00
2026-08-15 21:37:20 +02:00

CI Release Status Go Tauri Platforms License: AGPL-3.0

OwnCord

A self-hosted chat app I build for me and my friends — text channels, voice and video, and a server you actually own.

Alpha, and a hobby project. This is something I build for fun and run for a small group of friends. It isn't a product, there's no support, and it isn't production-ready. Expect rough edges, rapid changes, and the occasional breaking change.

Don't use it for anything sensitive.

It's a Go server plus a Tauri desktop client: real-time messaging, voice/video via LiveKit, file sharing, and a web admin panel. Run the server on a spare box or a VPS, hand your friends an invite code, and that's the whole thing.

OwnCord Client

Login Page Admin Panel

How it's built

Most of the implementation is generated with AI tooling, with quality held up by automated checks — CI, tests, linting — and by me and my friends actually using it. That keeps iteration fast, and it also means behaviour can change quickly between releases.

What works right now

Area Status
Core chat flow Working in alpha
Voice/video Working in alpha
Admin panel Working in alpha
Security hardening Ongoing review passes; findings and their statuses are tracked in the dated audits in docs/ (see the Docs Index below)

Platform Support (Current Releases)

Component Windows x64 Linux x64 Linux ARM64
Server binary Yes Yes Not yet
Desktop client Yes (NSIS installer) Yes (AppImage, .deb) Yes (AppImage, .deb)
Docker server N/A Build from source (compose) Not yet

Start Here

Quick Start

Option A: Prebuilt binaries

  1. Download assets from Releases (binaries, checksums, signatures, and a full source snapshot per release).
  2. Run the server binary:
    • Windows: chatserver.exe
    • Linux: ./chatserver
  3. Open https://localhost:8443/admin and complete the setup wizard — it creates your Owner account and configures the server for you (settings are saved to config.yaml automatically).
  4. Generate invite codes in the admin panel and share them with friends.

Option B: Docker (Linux server)

cd Server
cp .env.example .env
cp livekit.yaml.example livekit.yaml
# Edit both files before starting
docker compose up -d

See the full setup guide in docs/deployment.md.

The client uses TOFU (Trust On First Use) for self-signed certificates: it prompts once, then pins the certificate for future connections.

What OwnCord Already Has

  • Real-time channels and direct messages over WebSocket
  • Voice/video channels via LiveKit — the LiveKit server binary is downloaded and managed for you
  • Invite-only registration and role-based permissions
  • Web admin panel with logs, backups, and update tooling
  • File uploads and inline media rendering
  • TOTP 2FA support and API rate limiting
  • Desktop client auto-update with signature verification
  • WASM plugin system (slash commands; sandboxed, default-disabled — enable via plugins.enabled and build with -tags wazero)
  • GIF picker — off by default; each server supplies its own Klipy key via gif.api_key (setup)

See deeper feature and architecture docs in docs/architecture/ and docs/protocol.md.

Architecture

Two main components:

  • Go server (REST API, WebSocket hub, SQLite, admin panel)
  • Tauri v2 desktop client (Rust backend + TypeScript frontend)
+---------------------+         +---------------------+
|   OwnCord Client    |         |   OwnCord Server    |
|   (Tauri v2)        |         |       (Go)          |
|                     |         |                     |
|  +---------------+  |  WSS    |  +---------------+  |
|  |  Chat UI      |--+------->|  |  WebSocket Hub|  |
|  +---------------+  |         |  +---------------+  |
|  +---------------+  |  HTTPS  |  +---------------+  |
|  |  REST Client  |--+------->|  |  REST API     |  |
|  +---------------+  |         |  +---------------+  |
|  +---------------+  | LiveKit |  +---------------+  |
|  |  Voice/Video  |--+------->|  |  LiveKit SFU  |  |
|  +---------------+  |         |  +---------------+  |
+---------------------+         |  +---------------+  |
                                |  |  SQLite DB    |  |
                                |  +---------------+  |
                                +---------------------+

Build and Test

Prerequisites

  • Go 1.26+
  • Node.js 20+
  • Rust stable (client builds)

Build from source

# Server (Windows)
cd Server
go build -o chatserver.exe -ldflags "-s -w -X main.version=1.2.0-alpha.3" .

# Server (Linux)
cd Server
CGO_ENABLED=0 go build -o chatserver -ldflags "-s -w -X main.version=1.2.0-alpha.3" .

# Client
cd Client/tauri-client
npm install
npm run tauri build

Core verification commands

# Server
cd Server
go test ./...

# Client
cd Client/tauri-client
npm run typecheck
npm run lint
npm test

For the full command set, use docs/contributing.md.

Configuration

On first run, the server generates config.yaml and a local data/ directory:

data/
├── chatserver.db
├── certs/
├── uploads/
└── backups/

Key options include TLS mode, upload limits, LiveKit settings, and admin CIDR restrictions. See docs/server-configuration.md.

Security and Vulnerability Reporting

  • For vulnerabilities, use GitHub Security Advisories (private disclosure flow).
  • Do not open public issues for security bugs.
  • Read full policy and hardening notes in docs/security.md.

Update Signing Notes (Maintainers)

Client and server update signing keys are intentionally separate.

Required Actions secrets for release signing:

  • TAURI_SIGNING_PRIVATE_KEY
  • TAURI_SIGNING_PRIVATE_KEY_PASSWORD
  • SERVER_UPDATE_SIGNING_PRIVATE_KEY
  • SERVER_UPDATE_SIGNING_PRIVATE_KEY_PASSWORD

When rotating the server updater key, update Server/updater/server_update_public_key.txt and use staged rollover for live fleets.

Docs Index

Contributing

  1. Create a branch from dev (the active development branch).
  2. Keep changes focused and tested.
  3. Open a PR targeting devdev is merged to main for releases.

See docs/contributing.md for the full process.

License

AGPL-3.0

S
Description
OwnCord is a self-hosted, open-source chat platform with text channels, voice/video chat, direct messages, and a desktop client — built for communities that want full control over their data.
Readme AGPL-3.0
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