Add notes on what message sending will look like in dendrite (#45)
This commit is contained in:
Mark Haines
GitHub
parent
346f5d6334
commit
a82ccf5b31
103
README.md
103
README.md
|
|
@ -62,38 +62,119 @@ so that the readers can avoid querying the room server unnecessarily.
|
|||
|
||||
[This architecture can be extended to cover most of the APIs.](WIRING.md)
|
||||
|
||||
## How things are supposed to work.
|
||||
|
||||
### Local client sends an event in an existing room.
|
||||
|
||||
0) The client sends a PUT `/_matrix/client/r0/rooms/{roomId}/send` request
|
||||
and an HTTP loadbalancer routes the request to a ClientAPI.
|
||||
|
||||
1) The ClientAPI:
|
||||
|
||||
* Authenticates the local user using the `access_token` sent in the HTTP
|
||||
request.
|
||||
* Checks if it has already processed or is processing a request with the
|
||||
same `txnID`.
|
||||
* Calculates which state events are needed to auth the request.
|
||||
* Queries the necessary state events and the latest events in the room
|
||||
from the RoomServer.
|
||||
* Confirms that the room exists and checks whether the event is allowed by
|
||||
the auth checks.
|
||||
* Builds and signs the events.
|
||||
* Writes the event to a "InputRoomEvent" kafka topic.
|
||||
* Send a `200 OK` response to the client.
|
||||
|
||||
2) The RoomServer reads the event from "InputRoomEvent" kafka topic:
|
||||
|
||||
* Checks if it has already has a copy of the event.
|
||||
* Checks if the event is allowed by the auth checks using the auth events
|
||||
at the event.
|
||||
* Calculates the room state at the event.
|
||||
* Works out what the latest events in the room after processing this event
|
||||
are.
|
||||
* Calculate how the changes in the latest events affect the current state
|
||||
of the room.
|
||||
* TODO: Workout what events determine the visibility of this event to other
|
||||
users
|
||||
* Writes the event along with the changes in current state to an
|
||||
"OutputRoomEvent" kafka topic. It writes all the events for a room to
|
||||
the same kafka partition.
|
||||
|
||||
3a) The ClientSync reads the event from the "OutputRoomEvent" kafka topic:
|
||||
|
||||
* Updates its copy of the current state for the room.
|
||||
* Works out which users need to be notified about the event.
|
||||
* Wakes up any pending `/_matrix/client/r0/sync` requests for those users.
|
||||
* Adds the event to the recent timeline events for the room.
|
||||
|
||||
3b) The FederationSender reads the event from the "OutputRoomEvent" kafka topic:
|
||||
|
||||
* Updates its copy of the current state for the room.
|
||||
* Works out which remote servers need to be notified about the event.
|
||||
* Sends a `/_matrix/federation/v1/send` request to those servers.
|
||||
* Or if there is a request in progress then add the event to a queue to be
|
||||
sent when the previous request finishes.
|
||||
|
||||
### Remote server sends an event in an existing room.
|
||||
|
||||
0) The remote server sends a `PUT /_matrix/federation/v1/send` request and an
|
||||
HTTP loadbalancer routes the request to a FederationReceiver.
|
||||
|
||||
1) The FederationReceiver:
|
||||
|
||||
* Authenticates the remote server using the "X-Matrix" authorisation header.
|
||||
* Checks if it has already processed or is processing a request with the
|
||||
same `txnID`.
|
||||
* Checks the signatures for the events.
|
||||
Fetches the ed2519 keys for the event senders if necessary.
|
||||
* Queries the RoomServer for a copy of the state of the room at each event.
|
||||
* If the RoomServer doesn't know the state of the room at an event then
|
||||
query the state of the room at the event from the remote server using
|
||||
`GET /_matrix/federation/v1/state_ids` falling back to
|
||||
`GET /_matrix/federation/v1/state` if necessary.
|
||||
* Once the state at each event is known check whether the events are
|
||||
allowed by the auth checks against the state at each event.
|
||||
* For each event that is allowed write the event to the "InputRoomEvent"
|
||||
kafka topic.
|
||||
* Send a 200 OK response to the remote server listing which events were
|
||||
successfully processed and which events failed
|
||||
|
||||
2) The RoomServer processes the event the same as it would a local event.
|
||||
|
||||
3a) The ClientSync processes the event the same as it would a local event.
|
||||
|
||||
# TODO
|
||||
|
||||
- [ ] gomatrixlib
|
||||
- [x] Canonical JSON.
|
||||
- [x] Signed JSON.
|
||||
- [ ] Event hashing.
|
||||
- [ ] Event signing.
|
||||
- [x] Event hashing.
|
||||
- [x] Event signing.
|
||||
- [x] Federation server discovery.
|
||||
- [x] Federation key lookup.
|
||||
- [ ] Federation request signing.
|
||||
- [x] Event authentication.
|
||||
- [ ] Event visibility.
|
||||
- [ ] State resolution.
|
||||
- [x] State resolution.
|
||||
- [ ] Third party invites authentication.
|
||||
- [ ] Room Server
|
||||
- [ ] Inputing new events from logs.
|
||||
- [ ] Inputing backfilled events from logs.
|
||||
- [ ] Outputing events and current state to logs.
|
||||
- [x] Inputting new events from logs.
|
||||
- [ ] Inputting back-filled events from logs.
|
||||
- [x] Outputting events and current state to logs.
|
||||
- [ ] Querying state at an event.
|
||||
- [ ] Querying current forward extremities and state.
|
||||
- [x] Querying current forward extremities and state.
|
||||
- [ ] Querying message history.
|
||||
- [ ] Exporting/importing messages from other servers.
|
||||
- [ ] Other Room Server stuff.
|
||||
- [ ] Client Room Send
|
||||
- [ ] Handling /client/r0/room/... HTTP PUTs
|
||||
- [x] Handling /client/r0/room/... HTTP PUTs
|
||||
- [ ] Talk to remote servers for joins to remote servers.
|
||||
- [ ] Outputting new events to logs.
|
||||
- [x] Outputting new events to logs.
|
||||
- [ ] Updating the last active time in presence.
|
||||
- [ ] Other Client Room Send stuff.
|
||||
- [ ] Client Sync
|
||||
- [ ] Inputing new room events and state from the logs.
|
||||
- [ ] Inputting new room events and state from the logs.
|
||||
- [ ] Handling /client/r0/sync HTTP GETs
|
||||
- [ ] Outputing whether the client is syncing to the logs.
|
||||
- [ ] Outputting whether the client is syncing to the logs.
|
||||
- [ ] Other Client Sync Stuff.
|
||||
- [ ] Other Components.
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ Diagram:
|
|||
+----------| W | +----------| S | +--------| R |
|
||||
| +---+ | Receipts +---+ | Client +---+
|
||||
| Federation |>=========================================>| Server |>=====================>| Sync |
|
||||
| Send | | | | |
|
||||
| Receiver | | | | |
|
||||
| | +---+ | | | |
|
||||
| | +--------| W | | | | |
|
||||
| | | Client +---+ | | | |
|
||||
|
|
@ -49,8 +49,8 @@ Diagram:
|
|||
| | +---+ | | +---+ | |
|
||||
| | +--------| W | | | +----------| S | | |
|
||||
| | | Client +---+ | | | Presence +---+ | |
|
||||
| | | Room |>=====>| |>=====>| Server |>=====================>| |
|
||||
| | | Send | +--------+ | | | |
|
||||
| | | API |>=====>| |>=====>| Server |>=====================>| |
|
||||
| | | /send | +--------+ | | | |
|
||||
| | | | | | | |
|
||||
| | | |>======================>| |<=====================<| |
|
||||
| | +----------+ | | | |
|
||||
|
|
@ -101,7 +101,7 @@ choke-point to implement ratelimiting and backoff correctly.
|
|||
* Writes typing updates to logs.
|
||||
* Writes other updates to logs.
|
||||
|
||||
## Client Room Send
|
||||
## Client API /send
|
||||
|
||||
* Handles puts to `/client/v1/rooms/` that create room events.
|
||||
* Queries information needed to process events from the Room Server.
|
||||
|
|
|
|||
Loading…
Reference in a new issue