Architex

A Matrix homeserver written in Elixir. Currently, this project is in a very early stage.

Noteworthy contributions

lib/architex/state_resolution.ex: Implementation of version 2 of the Matrix state resolution algorithm.
lib/architex/state_resolution/authorization.ex: Implementation of authorization rules for the state resolution algorithm.
lib/architex/room_server.ex: A GenServer that holds and manages the state of a room.

Generate the server's ed25519 keys by executing ssh-keygen -t ed25519 -f keys/id_ed25519 -N ""

Here, implemented and some unimplemented features are listed.

State resolution: functional, but very memory-intensive and with high database usage. For now it is sufficient, but snapshots should be used in the future. See: State Resolution v2 for the Hopelessly Unmathematical, State Resolution: Reloaded and Room Version 2.
Authorization rules (Room version 1)
Homeserver authentication using signing keys (4.1 Request Authentication)
Client authentication (5.1 Using access tokens)

GET /_matrix/client/r0/register/available
GET /_matrix/client/r0/account/whoami
POST /_matrix/client/r0/logout
POST /_matrix/client/r0/logout/all
PUT /_matrix/client/r0/directory/room/{roomAlias}
GET /_matrix/client/versions
GET /_matrix/client/r0/login
POST /_matrix/client/r0/login: Only with password flow.
POST /_matrix/client/r0/register: Only with dummy flow.
POST /_matrix/client/r0/createRoom: Only with optional parameters name, topic and preset.
GET /_matrix/client/r0/joined_rooms
POST /_matrix/client/r0/rooms/{roomId}/invite
POST /_matrix/client/r0/rooms/{roomId}/join: Except with third party invite.
POST /_matrix/client/r0/rooms/{roomId}/leave
POST /_matrix/client/r0/rooms/{roomId}/kick
POST /_matrix/client/r0/rooms/{roomId}/ban
POST /_matrix/client/r0/rooms/{roomId}/unban
PUT /_matrix/client/r0/rooms/{roomId}/send/{eventType}/{txnId}
GET /_matrix/client/r0/rooms/{roomId}/messages: Except filtering.
GET /_matrix/client/r0/directory/list/room/{roomId}
PUT /_matrix/client/r0/directory/list/room/{roomId}
GET /_matrix/client/r0/capabilities
GET /_matrix/client/r0/profile/{userId}/avatar_url: Except federation.
PUT /_matrix/client/r0/profile/{userId}/avatar_url

GET /_matrix/federation/v1/event/{eventId}
GET /_matrix/federation/v1/state/{roomId}
GET /_matrix/federation/v1/state_ids/{roomId}
GET /_matrix/key/v2/server/{keyId}
GET /_matrix/federation/v1/query/profile: Except displayname and avatar_url is not implemented.

Resolving server names (but works for local development) (3.1 Resolving server names)
Checks when receiving events via federation (i.e. valid format, signature check and hash check) (6.1 Checks performed on receipt of a PDU)
Federation of events