dendrite/roomserver/version/version.go
Neil Alexander 05e1ae8745
Further room version wiring (#936)
* Room version 2 by default, other wiring updates, update gomatrixserverlib

* Fix nil pointer exception

* Fix some more nil pointer exceptions hopefully

* Update gomatrixserverlib

* Send all room versions when joining, not just stable ones

* Remove room version cquery

* Get room version when getting events from the roomserver database

* Reset default back to room version 2

* Don't generate event IDs unless needed

* Revert "Remove room version cquery"

This reverts commit a170d58733.

* Query room version in federation API, client API as needed

* Improvements to make_join send_join dance

* Make room server producers use headered events

* Lint tweaks

* Update gomatrixserverlib

* Versioned SendJoin

* Query room version in syncapi backfill

* Handle transaction marshalling/unmarshalling within Dendrite

* Sorta fix federation (kinda)

* whoops commit federation API too

* Use NewEventFromTrustedJSON when getting events from the database

* Update gomatrixserverlib

* Strip headers on federationapi endpoints

* Fix bug in clientapi profile room version query

* Update gomatrixserverlib

* Return more useful error if room version query doesn't find the room

* Update gomatrixserverlib

* Update gomatrixserverlib

* Maybe fix federation

* Fix formatting directive

* Update sytest whitelist and blacklist

* Temporarily disable room versions 3 and 4 until gmsl is fixed

* Fix count of EDUs in logging

* Update gomatrixserverlib

* Update gomatrixserverlib

* Update gomatrixserverlib

* Rely on EventBuilder in gmsl to generate the event IDs for us

* Some review comments fixed

* Move function out of common and into gmsl

* Comment in federationsender destinationqueue

* Update gomatrixserverlib
2020-03-27 16:28:22 +00:00

126 lines
4.1 KiB
Go

// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package version
import (
"fmt"
"github.com/matrix-org/gomatrixserverlib"
)
// RoomVersionDescription contains information about a room version,
// namely whether it is marked as supported or stable in this server
// version.
// A version is supported if the server has some support for rooms
// that are this version. A version is marked as stable or unstable
// in order to hint whether the version should be used to clients
// calling the /capabilities endpoint.
// https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-capabilities
type RoomVersionDescription struct {
Supported bool
Stable bool
}
var roomVersions = map[gomatrixserverlib.RoomVersion]RoomVersionDescription{
gomatrixserverlib.RoomVersionV1: RoomVersionDescription{
Supported: true,
Stable: true,
},
gomatrixserverlib.RoomVersionV2: RoomVersionDescription{
Supported: true,
Stable: true,
},
gomatrixserverlib.RoomVersionV3: RoomVersionDescription{
Supported: false,
Stable: false,
},
gomatrixserverlib.RoomVersionV4: RoomVersionDescription{
Supported: false,
Stable: false,
},
gomatrixserverlib.RoomVersionV5: RoomVersionDescription{
Supported: false,
Stable: false,
},
}
// DefaultRoomVersion contains the room version that will, by
// default, be used to create new rooms on this server.
func DefaultRoomVersion() gomatrixserverlib.RoomVersion {
return gomatrixserverlib.RoomVersionV2
}
// RoomVersions returns a map of all known room versions to this
// server.
func RoomVersions() map[gomatrixserverlib.RoomVersion]RoomVersionDescription {
return roomVersions
}
// SupportedRoomVersions returns a map of descriptions for room
// versions that are supported by this homeserver.
func SupportedRoomVersions() map[gomatrixserverlib.RoomVersion]RoomVersionDescription {
versions := make(map[gomatrixserverlib.RoomVersion]RoomVersionDescription)
for id, version := range RoomVersions() {
if version.Supported {
versions[id] = version
}
}
return versions
}
// RoomVersion returns information about a specific room version.
// An UnknownVersionError is returned if the version is not known
// to the server.
func RoomVersion(version gomatrixserverlib.RoomVersion) (RoomVersionDescription, error) {
if version, ok := roomVersions[version]; ok {
return version, nil
}
return RoomVersionDescription{}, UnknownVersionError{version}
}
// SupportedRoomVersion returns information about a specific room
// version. An UnknownVersionError is returned if the version is not
// known to the server, or an UnsupportedVersionError is returned if
// the version is known but specifically marked as unsupported.
func SupportedRoomVersion(version gomatrixserverlib.RoomVersion) (RoomVersionDescription, error) {
result, err := RoomVersion(version)
if err != nil {
return RoomVersionDescription{}, err
}
if !result.Supported {
return RoomVersionDescription{}, UnsupportedVersionError{version}
}
return result, nil
}
// UnknownVersionError is caused when the room version is not known.
type UnknownVersionError struct {
Version gomatrixserverlib.RoomVersion
}
func (e UnknownVersionError) Error() string {
return fmt.Sprintf("room version '%s' is not known", e.Version)
}
// UnsupportedVersionError is caused when the room version is specifically
// marked as unsupported.
type UnsupportedVersionError struct {
Version gomatrixserverlib.RoomVersion
}
func (e UnsupportedVersionError) Error() string {
return fmt.Sprintf("room version '%s' is marked as unsupported", e.Version)
}