$ show dani-garcia/vaultwarden
Vaultwarden is a self-hosted, open-source password manager server that provides a full Bitwarden-compatible API. Written in Rust using the Rocket web framework, it implements the entire Bitwarden client API for vault management, organizations, SSO/OIDC authentication, two-factor authentication (TOTP, WebAuthn, Duo, YubiKey, email), secure file storage, send functionality, emergency access, event logging, and push notifications. The architecture is a monolithic web service backed by Diesel ORM supporting SQLite, MySQL, PostgreSQL, and CockroachDB. File attachments are stored via an OpenDAL abstraction (local filesystem or S3). The server is deployed as a single binary or Docker container, serving its own web vault UI and an admin panel. External dependencies include the Bitwarden push relay service for mobile notifications and the upstream Bitwarden protocol for client compatibility. The codebase is well-structured with clear separation of concerns, extensive migrations, and a comprehensive Playwright test suite. It is actively maintained and widely adopted with over 68k stars.
The LLM identified 3 files worth highlighting for reuse:
A standalone proc-macro crate providing derive macros (`UuidFromParam`, `IdFromParam`) for Rocket parameter guards. These macros auto-generate Rocket `FromParam` implementations for UUID and other ID types, reducing boilerplate and ensuring consistent parsing. The crate is fully isolated and can be extracted into any Rocket project needing similar parameter parsing.
Defines the application's error type system with powerful macros (`make_error!`, `err!`, `err_silent!`, `err_code!`) for consistent error creation, logging, and JSON serialization. Implements Rocket's `Responder` trait for automatic HTTP error responses. The pattern is self-contained and could be extracted as a reusable error-handling framework for any Rocket-based API, demonstrating non-obvious ergonomic design.
A highly configurable HTTP client builder with a custom DNS resolver that validates IP addresses against allow/block lists, domain regex filters, and IPv4/IPv6 preferences. Designed to prevent SSRF and DNS rebinding attacks, it wraps `reqwest` and `hickory-resolver` into a clean, reusable abstraction. This component can be extracted into any Rust project requiring a secure outbound HTTP client.