matrix-org/dendriteArchived
Dendrite
Dendrite is a second-generation Matrix homeserver written in Go, designed to handle room management, federation, and client API traffic for real-time communication. It implements the Matrix protocol for federated messaging, presence, and encrypted communication, and can be deployed as a self-hosted platform that manages user accounts, rooms, media, and end-to-end encryption.
The server uses a modular architecture where independent components communicate through an internal message bus, supporting federation with remote homeservers, full-text search indexing of message content, presence broadcasting, and signing key management for authenticating federation requests. It provides user account creation and profile management, including device registration and credential handling, and supports user self-registration directly from client applications.
Dendrite offers deployment options including Docker containers and Kubernetes Helm charts, with configuration for database connection limits, file descriptor limits, message queue backends, and domain name setup. It includes administrative tools for user management, room purging, search reindexing, device refresh, and system notice delivery, as well as performance profiling tools for CPU and memory analysis. The server supports TLS certificate acquisition, DNS resolution caching, and reCAPTCHA verification for spam prevention.
Features
- Homeservers - Operates as a self-hosted Matrix homeserver for federated real-time communication.
- Matrix Servers - Runs a complete Matrix homeserver that handles room creation, invites, authentication, and federation.
- Federated Presence Receivers - Receives and distributes presence updates from remote Matrix homeservers to local users.
- Self-Hosted Communication Servers - Provides a deployable homeserver for private, self-hosted communication with end-to-end encryption.
- Presence Broadcasters - Broadcasts local user presence states to remote servers and processes incoming presence updates over federation.
- Federated Message Exchanges - Implements the Matrix federation protocol for exchanging messages with remote homeservers.
- Matrix Protocol Implementations - Implements the Matrix federation protocol for exchanging messages and room state with remote homeservers.
- End-to-End Encryption - Manages encryption key exchange and device lists to enable secure, encrypted messaging between Matrix clients.
- User Profile Management - Creates and maintains user profiles, devices, and authentication credentials for client applications.
- Internal Message Buses - Routes messages between server components using a built-in or standalone message broker for decoupled communication.
- Server Component Architectures - Ships a modular server architecture where independent components communicate through an internal message bus.
- Federated Social Servers - Exchanges messages and room state with remote homeservers using a standard server-to-server protocol.
- Federation Signing Keys - Generates and converts cryptographic signing keys for authenticating federation requests and events.
- Media Upload Servers - Accepts, stores, and retrieves uploaded media such as images and files through standard media APIs.
- Full Text Search - Indexes message content across rooms using a built-in full-text search engine.
- Full-Text Search Engines - Indexes message content using a built-in full-text search engine with configurable language support.
- Content Search Filters - Indexes and searches message text across rooms using a built-in fulltext search engine.
- Message Indexers - Indexes message content across rooms using a built-in fulltext search engine with configurable language support.
- Account Creation Commands - Provides a command-line tool for creating user accounts with normal or admin privileges.
- Helm Chart Cluster Installation - Provides a Helm chart for deploying the Matrix homeserver on Kubernetes clusters.
- Server Administration APIs - Provides command-line tools and API endpoints for user management, room purging, and device administration.
- Helm Chart Deployments - Deploys the homeserver on Kubernetes using an official Helm chart.
- Certificate Acquirers - Acquires valid TLS certificates from a public certificate authority to secure federation traffic between homeservers.
- User Account Registrations - Creates new user accounts with a username and password directly from a client application.
- Shared Secret Registrations - Ships a shared-secret-authenticated HTTP endpoint for registering new user accounts.
- Communication Systems - Scalable Matrix homeserver implementation.
