Dendrite is a second-generation Matrix homeserver written in Go!
Go to file
Neil Alexander 1002e87b60
Pinecone P2P demo (#1856)
* Pinecone demo

* Enable multicast, fix HTTP routing

* Fix multicast import

* Fix build

* Update Pinecone demo

* Fix the keys

* Tweaks

* Pinecone room directory support (early)

* Fix gobind-pinecone

* Add pinecone listener

* Fix public key value

* Use AuthenticatedConnect for dial

* Fix gobind-pinecone

* Stop panics

* Give fsAPI to keyserver

* Pinecone demo fixes

* Update gobind build scripts

* Account creation

* Tweaks

* Setup tweaks

* API tweaks

* API tweaks

* API tweaks

* Port mutex

* Re-enable multicast

* Add ReadCopy

* Update quic-go, fixes

* Shutdowns fixed for iOS

* Update build script

* Add WebSocket support

* Bug fixes

* Netconn context

* Fix WebSocket connectivity

* Fixes to gobind API

* Strip frameworks

* Configurability updates

* Update go.mod

* Update go.mod/go.sum

* Update go.mod/go.sum

* Update go.mod/go.sum

* Try to stay connected tto static peer

* Update gobind-pinecone

* Update go.mod/go.sum

* Test uTP+TLS

* Use HTTP/2

* Don't use HTTP/2

* Update go.mod/go.sum

* Attempt to reconnect to the static peer if it drops

* Stay connected to static peers more stickily

* Retry room directory lookups if they fail

* NewQUIC -> NewSessions

* Storage updates

* Don't return immediately when there's nothing to sync

* Updates

* Try to reconnect to static peer more

* Update go.mod/go.sum

* Require Go 1.14

* Update go.mod/go.sum

* Update go.mod/go.sum
2021-05-06 12:00:42 +01:00
.github Use dendritegithub for Docker Hub images 2021-01-18 14:00:47 +00:00
appservice Use default transport for AS traffic (#1789) 2021-03-05 16:40:32 +00:00
build Pinecone P2P demo (#1856) 2021-05-06 12:00:42 +01:00
clientapi Fix registration error when disabled 2021-04-15 09:58:26 +01:00
cmd Pinecone P2P demo (#1856) 2021-05-06 12:00:42 +01:00
docs Pinecone P2P demo (#1856) 2021-05-06 12:00:42 +01:00
eduserver Sync refactor — Part 1 (#1688) 2021-01-08 16:59:06 +00:00
federationapi Move room mutex in federation API (#1830) 2021-04-13 11:13:07 +01:00
federationsender fedsender: tolerate dupe membership events (#1824) 2021-04-14 11:11:54 +01:00
internal Add a per-room mutex to federationapi when processing transactions (#1810) 2021-03-30 10:01:32 +01:00
keyserver Optimise memory usage when calling /g_m_e (#1819) 2021-04-08 13:50:39 +01:00
mediaapi Remove the 'Content-Type' request header requirement (#1834) 2021-04-19 16:29:51 +01:00
roomserver Fix bug in SQLite migration 2021-04-26 13:45:47 +01:00
setup Implement OpenID module (#599) (#1812) 2021-04-07 13:26:20 +01:00
signingkeyserver NewClient and NewFederationClient updates (#1730) 2021-01-22 16:09:05 +00:00
syncapi Don't return immediately when there's nothing to sync 2021-04-26 16:33:42 +01:00
userapi Implement OpenID module (#599) (#1812) 2021-04-07 13:26:20 +01:00
.dockerignore Docker Hub (#1053) 2020-05-21 13:02:28 +01:00
.gitignore Use log directory that we will be able to write to (#1799) 2021-03-30 09:53:02 +01:00
.golangci.yml Increase gocyclo complexity to 25 (and remove all but 2 golint directives related to it) (#1783) 2021-03-03 14:35:57 +00:00
are-we-synapse-yet.list AWSY: new groups and add AS API section (#1270) 2020-08-14 11:26:06 +01:00
are-we-synapse-yet.py AWSY: new groups and add AS API section (#1270) 2020-08-14 11:26:06 +01:00
build-dendritejs.sh Update build script to run on any POSIX (#1577) 2020-11-16 10:09:53 +00:00
build.sh Create bin dir 2021-01-18 15:09:54 +00:00
CHANGES.md Version 0.3.11 2021-03-02 11:46:35 +00:00
dendrite-config.yaml Document need for max-body-size change in reverse proxy as well (#1816) 2021-04-08 12:08:38 +01:00
go.mod Pinecone P2P demo (#1856) 2021-05-06 12:00:42 +01:00
go.sum Pinecone P2P demo (#1856) 2021-05-06 12:00:42 +01:00
LICENSE Add Apache Version 2.0 license and headers to all golang files 2017-04-21 00:40:52 +02:00
README.md Update FAQ 2020-12-07 10:20:19 +00:00
show-expected-fail-tests.sh Fix newlines between white/blacklist test names in buildkite annotations (#1003) 2020-05-04 14:48:49 +01:00
sytest-blacklist log less for failed key querys, add counters for incoming pdus/edus (#1801) 2021-03-23 11:33:36 +00:00
sytest-whitelist Implement OpenID module (#599) (#1812) 2021-04-07 13:26:20 +01:00

Dendrite Build Status Dendrite Dendrite Dev

Dendrite is a second-generation Matrix homeserver written in Go. It intends to provide an efficient, reliable and scalable alternative to Synapse:

  • Efficient: A small memory footprint with better baseline performance than an out-of-the-box Synapse.
  • Reliable: Implements the Matrix specification as written, using the same test suite as Synapse as well as a brand new Go test suite.
  • Scalable: can run on multiple machines and eventually scale to massive homeserver deployments.

As of October 2020, Dendrite has now entered beta which means:

  • Dendrite is ready for early adopters. We recommend running in Monolith mode with a PostgreSQL database.
  • Dendrite has periodic semver releases. We intend to release new versions as we land significant features.
  • Dendrite supports database schema upgrades between releases. This means you should never lose your messages when upgrading Dendrite.
  • Breaking changes will not occur on minor releases. This means you can safely upgrade Dendrite without modifying your database or config file.

This does not mean:

  • Dendrite is bug-free. It has not yet been battle-tested in the real world and so will be error prone initially.
  • All of the CS/Federation APIs are implemented. We are tracking progress via a script called 'Are We Synapse Yet?'. In particular, presence and push notifications are entirely missing from Dendrite. See CHANGES.md for updates.
  • Dendrite is ready for massive homeserver deployments. You cannot shard each microservice, only run each one on a different machine.

Currently, we expect Dendrite to function well for small (10s/100s of users) homeserver deployments as well as P2P Matrix nodes in-browser or on mobile devices. In the future, we will be able to scale up to gigantic servers (equivalent to matrix.org) via polylith mode.

If you have further questions, please take a look at our FAQ or join us in:

Requirements

To build Dendrite, you will need Go 1.13 or later.

For a usable federating Dendrite deployment, you will also need:

  • A domain name (or subdomain)
  • A valid TLS certificate issued by a trusted authority for that domain
  • SRV records or a well-known file pointing to your deployment

Also recommended are:

  • A PostgreSQL database engine, which will perform better than SQLite with many users and/or larger rooms
  • A reverse proxy server, such as nginx, configured like this sample

The Federation Tester can be used to verify your deployment.

Get started

If you wish to build a fully-federating Dendrite instance, see INSTALL.md. For running in Docker, see build/docker.

The following instructions are enough to get Dendrite started as a non-federating test deployment using self-signed certificates and SQLite databases:

$ git clone https://github.com/matrix-org/dendrite
$ cd dendrite
$ ./build.sh

# Generate a Matrix signing key for federation (required)
$ ./bin/generate-keys --private-key matrix_key.pem

# Generate a self-signed certificate (optional, but a valid TLS certificate is normally
# needed for Matrix federation/clients to work properly!)
$ ./bin/generate-keys --tls-cert server.crt --tls-key server.key

# Copy and modify the config file - you'll need to set a server name and paths to the keys
# at the very least, along with setting up the database connection strings.
$ cp dendrite-config.yaml dendrite.yaml

# Build and run the server:
$ ./bin/dendrite-monolith-server --tls-cert server.crt --tls-key server.key --config dendrite.yaml

Then point your favourite Matrix client at http://localhost:8008 or https://localhost:8448.

Progress

We use a script called Are We Synapse Yet which checks Sytest compliance rates. Sytest is a black-box homeserver test rig with around 900 tests. The script works out how many of these tests are passing on Dendrite and it updates with CI. As of November 2020 we're at around 58% CS API coverage and 83% Federation coverage, though check CI for the latest numbers. In practice, this means you can communicate locally and via federation with Synapse servers such as matrix.org reasonably well. There's a long list of features that are not implemented, notably:

  • Push
  • Search and Context
  • User Directory
  • Presence
  • Guests

We are prioritising features that will benefit single-user homeservers first (e.g Receipts, E2E) rather than features that massive deployments may be interested in (User Directory, OpenID, Guests, Admin APIs, AS API). This means Dendrite supports amongst others:

  • Core room functionality (creating rooms, invites, auth rules)
  • Federation in rooms v1-v6
  • Backfilling locally and via federation
  • Accounts, Profiles and Devices
  • Published room lists
  • Typing
  • Media APIs
  • Redaction
  • Tagging
  • E2E keys and device lists
  • Receipts

Contributing

We would be grateful for any help on issues marked as Are We Synapse Yet. These issues all have related Sytests which need to pass in order for the issue to be closed. Once you've written your code, you can quickly run Sytest to ensure that the test names are now passing.

For example, if the test Local device key changes get to remote servers was marked as failing, find the test file (e.g via grep or via the CI log output it's tests/50federation/40devicelists.pl ) then to run Sytest:

docker run --rm --name sytest
-v "/Users/kegan/github/sytest:/sytest"
-v "/Users/kegan/github/dendrite:/src"
-v "/Users/kegan/logs:/logs"
-v "/Users/kegan/go/:/gopath"
-e "POSTGRES=1" -e "DENDRITE_TRACE_HTTP=1"
matrixdotorg/sytest-dendrite:latest tests/50federation/40devicelists.pl

See sytest.md for the full description of these flags.

You can try running sytest outside of docker for faster runs, but the dependencies can be temperamental and we recommend using docker where possible.

cd sytest
export PERL5LIB=$HOME/lib/perl5
export PERL_MB_OPT=--install_base=$HOME
export PERL_MM_OPT=INSTALL_BASE=$HOME
./install-deps.pl

./run-tests.pl -I Dendrite::Monolith -d $PATH_TO_DENDRITE_BINARIES

Sometimes Sytest is testing the wrong thing or is flakey, so it will need to be patched. Ask on #dendrite-dev:matrix.org if you think this is the case for you and we'll be happy to help.

If you're new to the project, see CONTRIBUTING.md to get up to speed then look for Good First Issues. If you're familiar with the project, look for Help Wanted issues.

Hardware requirements

Dendrite in Monolith + SQLite works in a range of environments including iOS and in-browser via WASM.

For small homeserver installations joined on ~10s rooms on matrix.org with ~100s of users in those rooms, including some encrypted rooms:

  • Memory: uses around 100MB of RAM, with peaks at around 200MB.
  • Disk space: After a few months of usage, the database grew to around 2GB (in Monolith mode).
  • CPU: Brief spikes when processing events, typically idles at 1% CPU.

This means Dendrite should comfortably work on things like Raspberry Pis.