Edouard Vanbelle 289f408d23 perf(dpop): collapse the SW nonce stampede to a single challenge
A DPoP proof carries a server-issued nonce. With none cached the server
answers `401 use_dpop_nonce`, the client harvests the nonce and retries.
`signAndFetch` already absorbed that, so it was invisible — but it did
it PER REQUEST, with no coordination.

The Service Worker always cold-starts without a nonce. Both mechanisms
that pre-seed the page are unreachable from worker scope: workers have
no `sessionStorage`, and `seedNonceFromCookie` early-returns on
`typeof document === 'undefined'`. The SW also skips requests that
already carry a `DPoP` header, so it never observes the page's
responses and cannot harvest from them either. Browsers terminate idle
workers after ~30s, so this happens routinely, not once.

Uncoordinated, every request issued in that window discovers the nonce
independently: N parallel requests → N challenges → 2N requests. That is
precisely the photo grid, and serving `<img src>` is the SW's main job —
those requests cannot sign themselves, which is why the worker exists.
Each wasted challenge also costs the server a full ECDSA P-256 verify,
because `verify_proof` runs before the nonce check.

Now the first request through owns the discovery and the rest await it,
so N challenges collapse to 1. The wait is capped (5s) and released in a
`finally`: the SW is on the critical path for every thumbnail, so a hung
discovery must degrade to the old behaviour rather than stall the grid
behind a promise that never settles.

Measured on a 763-line e2e server log: 115 `dpop.nonce_challenged`
events across 97 logins.

Scope, deliberately: this does NOT remove the one challenge per worker
lifetime. Doing that needs the nonce persisted where a worker can read
it — IndexedDB already holds the keypair — and it can never replace the
challenge path anyway, since a persisted nonce can be stale. Left out
until the audit line shows it is worth it; the numbers above are now
legible enough to tell.

Not a correctness fix. Nothing was broken and no test failed over this.
The argument is waste, plus signal: 115 challenges per run is noise that
would bury a real one.

`hasNonce()` is exported for the gate — deliberately "will the next
proof carry a nonce", not "is it still valid", since only the server
knows the latter and the challenge path already handles it. Its tests
assert it agrees with what `buildDpopProof` actually emits, because a
wrong answer either reinstates the stampede or stalls every request
behind a bootstrap that is not happening.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-05 23:01:53 +02:00
2026-05-31 03:53:33 +02:00
2026-05-28 22:37:31 +02:00
2026-06-16 13:51:51 -06:00
2026-08-13 00:30:55 +02:00
2026-08-29 11:57:48 +02:00
2026-06-16 13:51:51 -06:00
2026-06-16 13:51:51 -06:00
2026-08-29 11:57:48 +02:00

OxiCloud logo

A fast self-hosted cloud for people who want files, calendars, contacts, and office editing without dragging a heavy stack behind them.

Documentation · Quick Start · Star OxiCloud · Request a Feature · Supported Clients · Project Status

Latest release CI GitHub stars Docker image size Rust 1.93+ MIT license

If OxiCloud saves you setup time, RAM, or complexity, give it a star. If something is missing, ask for a feature or request a docs improvement.

OxiCloud dashboard

Why People Try OxiCloud

OxiCloud is aimed at self-hosters, home labs, and small teams who want the useful parts of a cloud suite without the operational drag of a traditional PHP stack.

What pulls people in:

  • Standard protocols first: WebDAV, CalDAV, and CardDAV are built in
  • Useful product surface already there: files, previews, sharing, trash, search, favorites, and recent items
  • Modern auth and admin basics: OIDC/SSO, quotas, roles, and shared links
  • Better interoperability: native desktop and mobile clients work without custom sync tooling for basic access
  • Lower deployment friction: Docker Compose, environment-based configuration, Helm chart, and Nix module

OxiCloud is not trying to mirror the full plugin ecosystem of Nextcloud. It is designed for a smaller stack, fast startup, and standards-based interoperability.

Quick Start

Docker Compose

Requires Docker and Docker Compose.

git clone https://github.com/AtalayaLabs/OxiCloud.git
cd OxiCloud
cp example.env .env

# If users will access OxiCloud through a domain or reverse proxy,
# set OXICLOUD_BASE_URL in .env before the first login.
docker compose up -d

Open http://localhost:8086.

Prebuilt binary

Binary releases (Linux musl amd64/arm64, macOS Intel/Apple Silicon) are attached to every tagged release on GitHub — the whole SPA + all operator subcommands + migrations bake into a single self-contained executable. See docs/install/binary.md for the download / verify / systemd walkthrough.

cargo binstall oxicloud works too once a release is out.

Run from source

Requires Rust 1.93+ and PostgreSQL.

git clone https://github.com/AtalayaLabs/OxiCloud.git
cd OxiCloud
cp example.env .env

# If PostgreSQL runs on your host instead of Docker, update both
# OXICLOUD_DB_CONNECTION_STRING and DATABASE_URL to use localhost:5432.
cargo run

Deployment details: deployment guide · example.env

What You Get

Area Included
Files Multi-file upload, folders, inline previews, thumbnails, chunked uploads, deduplication, trash
Sync and clients WebDAV, CalDAV, CardDAV, native OS clients, Thunderbird, DAVx5
Security JWT auth, Argon2id, OIDC/SSO, shared links, quotas, admin/user roles
Integrations REST API and WOPI for Collabora or OnlyOffice
Operations Docker image, Docker Compose, env-driven config, PostgreSQL backend
Project tooling Architecture docs, Helm chart, Nix module, CI

Supported Clients

OxiCloud uses standard DAV protocols, so it works with native clients instead of requiring a custom sync stack for basic access.

Use case URL
Files via WebDAV https://your-host/webdav/
Calendars via CalDAV https://your-host/caldav/
Contacts via CardDAV https://your-host/carddav/

Common clients that work well:

  • macOS Finder
  • Windows Explorer
  • GNOME Files and KDE Dolphin
  • Thunderbird
  • Apple Calendar and Contacts
  • DAVx5 on Android

Client setup guides: DAV client setup · WebDAV guide · CalDAV & CardDAV guide

Project Status

OxiCloud is actively developed and already covers the core self-hosted cloud workflow.

Capability Status Notes
File storage and web UI Ready Uploads, previews, sharing, trash, and search
WebDAV Ready Standard file access for desktop and mobile clients
CalDAV and CardDAV Ready Working with Thunderbird, Apple clients, and others
OIDC / SSO Ready Documentation and config examples included
WOPI office editing Ready Works with Collabora or OnlyOffice
DAVx5 Android support Partial File sync works well; calendar and contact behavior is still being refined
Desktop sync client Planned Not yet available
Mobile apps Planned Not yet available
End-to-end encryption Planned Roadmap item

Roadmap: TODO-LIST.md

Help Shape OxiCloud

If you want OxiCloud to get better faster, use the repo like a product feedback loop, not just a code dump.

The best feature ideas usually come from real deployment pain. If you hit friction, open an issue and describe the workflow you want.

Architecture and Deployment

OxiCloud follows a clean, hexagonal architecture so protocol handlers, business logic, and infrastructure stay separated.

  • Backend: Rust + Axum
  • Database: PostgreSQL
  • Configuration: environment variables
  • Default deployment: Docker Compose
  • Additional packaging: Helm chart and Nix module

Architecture docs: internal architecture · caching architecture · database transactions · storage safety

Configuration and Integrations

Start with example.env. The most important settings are:

  • OXICLOUD_BASE_URL for reverse proxies, domains, and external access
  • OXICLOUD_DB_CONNECTION_STRING for PostgreSQL
  • OXICLOUD_OIDC_ENABLED and related settings for SSO
  • OXICLOUD_WOPI_ENABLED and discovery URL for office editing
  • MIMALLOC_PURGE_DELAY=0 for lower idle RSS in constrained environments

Integration docs: OIDC setup · OIDC architecture · OIDC config examples · WOPI integration

Documentation

Development

cargo fmt --all --check
cargo clippy --all-features --all-targets -- -D warnings
cargo test --workspace

Contributing

Contributions are welcome. Read CONTRIBUTING.md before opening a pull request and CODE_OF_CONDUCT.md for community expectations.

If you are not ready to code yet, starring the project and opening a precise feature request is still a meaningful contribution.

Contributors

OxiCloud is a community-driven project, and we appreciate all contributions. Check out the Contributors page to see the amazing people who have helped make OxiCloud better.

Contributors

Star History

Star History Chart

License

MIT. See LICENSE.

OxiCloud is a trademark of the OxiCloud project. All other trademarks are the property of their respective owners.

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