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MSC2946: Spaces Summary (#1700) 

* Add stub functions for MSC2946

* Implement core space walking algorithm

* Flesh out stub functions; add test stubs

* Implement storage bits and add sanity check test

* Implement world_readable auth with test

* Linting
main
Kegsay 2021-01-13 18:00:38 +00:00 committed by GitHub
parent 3ac693c7a5
commit 3183f75aed
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6 changed files with 1041 additions and 2 deletions
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3
dendrite-config.yaml
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@ -257,7 +257,8 @@ media_api:
mscs:
# A list of enabled MSC's
# Currently valid values are:
# - msc2836 (Threading, see https://github.com/matrix-org/matrix-doc/pull/2836)
# - msc2836 (Threading, see https://github.com/matrix-org/matrix-doc/pull/2836)
# - msc2946 (Spaces Summary, see https://github.com/matrix-org/matrix-doc/pull/2946)
mscs: []
database:
connection_string: file:mscs.db

2
setup/config/config_mscs.go
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@ -3,7 +3,7 @@ package config
type MSCs struct {
Matrix *Global `yaml:"-"`
// The MSCs to enable, currently only `msc2836` is supported.
// The MSCs to enable
MSCs []string `yaml:"mscs"`
Database DatabaseOptions `yaml:"database"`

366
setup/mscs/msc2946/msc2946.go Normal file
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@ -0,0 +1,366 @@
// Copyright 2021 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 msc2946 'Spaces Summary' implements https://github.com/matrix-org/matrix-doc/pull/2946
package msc2946
import (
"context"
"fmt"
"net/http"
"sync"
"github.com/gorilla/mux"
chttputil "github.com/matrix-org/dendrite/clientapi/httputil"
"github.com/matrix-org/dendrite/internal/hooks"
"github.com/matrix-org/dendrite/internal/httputil"
roomserver "github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/setup"
userapi "github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/util"
"github.com/tidwall/gjson"
)
const (
ConstCreateEventContentKey = "org.matrix.msc1772.type"
ConstSpaceChildEventType = "org.matrix.msc1772.space.child"
ConstSpaceParentEventType = "org.matrix.msc1772.room.parent"
)
// SpacesRequest is the request body to POST /_matrix/client/r0/rooms/{roomID}/spaces
type SpacesRequest struct {
MaxRoomsPerSpace int `json:"max_rooms_per_space"`
Limit int `json:"limit"`
Batch string `json:"batch"`
}
// Defaults sets the request defaults
func (r *SpacesRequest) Defaults() {
r.Limit = 100
r.MaxRoomsPerSpace = -1
}
// SpacesResponse is the response body to POST /_matrix/client/r0/rooms/{roomID}/spaces
type SpacesResponse struct {
NextBatch string `json:"next_batch"`
// Rooms are nodes on the space graph.
Rooms []Room `json:"rooms"`
// Events are edges on the space graph, exclusively m.space.child or m.room.parent events
Events []gomatrixserverlib.ClientEvent `json:"events"`
}
// Room is a node on the space graph
type Room struct {
gomatrixserverlib.PublicRoom
NumRefs int `json:"num_refs"`
RoomType string `json:"room_type"`
}
// Enable this MSC
func Enable(
base *setup.BaseDendrite, rsAPI roomserver.RoomserverInternalAPI, userAPI userapi.UserInternalAPI,
) error {
db, err := NewDatabase(&base.Cfg.MSCs.Database)
if err != nil {
return fmt.Errorf("Cannot enable MSC2946: %w", err)
}
hooks.Enable()
hooks.Attach(hooks.KindNewEventPersisted, func(headeredEvent interface{}) {
he := headeredEvent.(*gomatrixserverlib.HeaderedEvent)
hookErr := db.StoreReference(context.Background(), he)
if hookErr != nil {
util.GetLogger(context.Background()).WithError(hookErr).WithField("event_id", he.EventID()).Error(
"failed to StoreReference",
)
}
})
base.PublicClientAPIMux.Handle("/unstable/rooms/{roomID}/spaces",
httputil.MakeAuthAPI("spaces", userAPI, spacesHandler(db, rsAPI)),
).Methods(http.MethodPost, http.MethodOptions)
return nil
}
func spacesHandler(db Database, rsAPI roomserver.RoomserverInternalAPI) func(*http.Request, *userapi.Device) util.JSONResponse {
inMemoryBatchCache := make(map[string]set)
return func(req *http.Request, device *userapi.Device) util.JSONResponse {
// Extract the room ID from the request. Sanity check request data.
params := mux.Vars(req)
roomID := params["roomID"]
var r SpacesRequest
r.Defaults()
if resErr := chttputil.UnmarshalJSONRequest(req, &r); resErr != nil {
return *resErr
}
if r.Limit > 100 {
r.Limit = 100
}
w := walker{
req: &r,
rootRoomID: roomID,
caller: device,
ctx: req.Context(),
db: db,
rsAPI: rsAPI,
inMemoryBatchCache: inMemoryBatchCache,
}
res := w.walk()
return util.JSONResponse{
Code: 200,
JSON: res,
}
}
}
type walker struct {
req *SpacesRequest
rootRoomID string
caller *userapi.Device
db Database
rsAPI roomserver.RoomserverInternalAPI
ctx context.Context
// user ID|device ID|batch_num => event/room IDs sent to client
inMemoryBatchCache map[string]set
mu sync.Mutex
}
func (w *walker) alreadySent(id string) bool {
w.mu.Lock()
defer w.mu.Unlock()
m, ok := w.inMemoryBatchCache[w.caller.UserID+"|"+w.caller.ID]
if !ok {
return false
}
return m[id]
}
func (w *walker) markSent(id string) {
w.mu.Lock()
defer w.mu.Unlock()
m := w.inMemoryBatchCache[w.caller.UserID+"|"+w.caller.ID]
if m == nil {
m = make(set)
}
m[id] = true
w.inMemoryBatchCache[w.caller.UserID+"|"+w.caller.ID] = m
}
// nolint:gocyclo
func (w *walker) walk() *SpacesResponse {
var res SpacesResponse
// Begin walking the graph starting with the room ID in the request in a queue of unvisited rooms
unvisited := []string{w.rootRoomID}
processed := make(set)
for len(unvisited) > 0 {
roomID := unvisited[0]
unvisited = unvisited[1:]
// If this room has already been processed, skip. NB: do not remember this between calls
if processed[roomID] || roomID == "" {
continue
}
// Mark this room as processed.
processed[roomID] = true
// Is the caller currently joined to the room or is the room `world_readable`
// If no, skip this room. If yes, continue.
if !w.authorised(roomID) {
continue
}
// Get all `m.space.child` and `m.room.parent` state events for the room. *In addition*, get
// all `m.space.child` and `m.room.parent` state events which *point to* (via `state_key` or `content.room_id`)
// this room. This requires servers to store reverse lookups.
refs, err := w.references(roomID)
if err != nil {
util.GetLogger(w.ctx).WithError(err).WithField("room_id", roomID).Error("failed to extract references for room")
continue
}
// If this room has not ever been in `rooms` (across multiple requests), extract the
// `PublicRoomsChunk` for this room.
if !w.alreadySent(roomID) {
pubRoom := w.publicRoomsChunk(roomID)
roomType := ""
create := w.stateEvent(roomID, "m.room.create", "")
if create != nil {
roomType = gjson.GetBytes(create.Content(), ConstCreateEventContentKey).Str
}
// Add the total number of events to `PublicRoomsChunk` under `num_refs`. Add `PublicRoomsChunk` to `rooms`.
res.Rooms = append(res.Rooms, Room{
PublicRoom: *pubRoom,
NumRefs: refs.len(),
RoomType: roomType,
})
}
uniqueRooms := make(set)
// If this is the root room from the original request, insert all these events into `events` if
// they haven't been added before (across multiple requests).
if w.rootRoomID == roomID {
for _, ev := range refs.events() {
if !w.alreadySent(ev.EventID()) {
res.Events = append(res.Events, gomatrixserverlib.HeaderedToClientEvent(
ev, gomatrixserverlib.FormatAll,
))
uniqueRooms[ev.RoomID()] = true
uniqueRooms[SpaceTarget(ev)] = true
w.markSent(ev.EventID())
}
}
} else {
// Else add them to `events` honouring the `limit` and `max_rooms_per_space` values. If either
// are exceeded, stop adding events. If the event has already been added, do not add it again.
numAdded := 0
for _, ev := range refs.events() {
if w.req.Limit > 0 && len(res.Events) >= w.req.Limit {
break
}
if w.req.MaxRoomsPerSpace > 0 && numAdded >= w.req.MaxRoomsPerSpace {
break
}
if w.alreadySent(ev.EventID()) {
continue
}
res.Events = append(res.Events, gomatrixserverlib.HeaderedToClientEvent(
ev, gomatrixserverlib.FormatAll,
))
uniqueRooms[ev.RoomID()] = true
uniqueRooms[SpaceTarget(ev)] = true
w.markSent(ev.EventID())
// we don't distinguish between child state events and parent state events for the purposes of
// max_rooms_per_space, maybe we should?
numAdded++
}
}
// For each referenced room ID in the events being returned to the caller (both parent and child)
// add the room ID to the queue of unvisited rooms. Loop from the beginning.
for roomID := range uniqueRooms {
unvisited = append(unvisited, roomID)
}
}
return &res
}
func (w *walker) stateEvent(roomID, evType, stateKey string) *gomatrixserverlib.HeaderedEvent {
var queryRes roomserver.QueryCurrentStateResponse
tuple := gomatrixserverlib.StateKeyTuple{
EventType: evType,
StateKey: stateKey,
}
err := w.rsAPI.QueryCurrentState(w.ctx, &roomserver.QueryCurrentStateRequest{
RoomID: roomID,
StateTuples: []gomatrixserverlib.StateKeyTuple{tuple},
}, &queryRes)
if err != nil {
return nil
}
return queryRes.StateEvents[tuple]
}
func (w *walker) publicRoomsChunk(roomID string) *gomatrixserverlib.PublicRoom {
pubRooms, err := roomserver.PopulatePublicRooms(w.ctx, []string{roomID}, w.rsAPI)
if err != nil {
util.GetLogger(w.ctx).WithError(err).Error("failed to PopulatePublicRooms")
return nil
}
if len(pubRooms) == 0 {
return nil
}
return &pubRooms[0]
}
// authorised returns true iff the user is joined this room or the room is world_readable
func (w *walker) authorised(roomID string) bool {
hisVisTuple := gomatrixserverlib.StateKeyTuple{
EventType: gomatrixserverlib.MRoomHistoryVisibility,
StateKey: "",
}
roomMemberTuple := gomatrixserverlib.StateKeyTuple{
EventType: gomatrixserverlib.MRoomMember,
StateKey: w.caller.UserID,
}
var queryRes roomserver.QueryCurrentStateResponse
err := w.rsAPI.QueryCurrentState(w.ctx, &roomserver.QueryCurrentStateRequest{
RoomID: roomID,
StateTuples: []gomatrixserverlib.StateKeyTuple{
hisVisTuple, roomMemberTuple,
},
}, &queryRes)
if err != nil {
util.GetLogger(w.ctx).WithError(err).Error("failed to QueryCurrentState")
return false
}
memberEv := queryRes.StateEvents[roomMemberTuple]
hisVisEv := queryRes.StateEvents[hisVisTuple]
if memberEv != nil {
membership, _ := memberEv.Membership()
if membership == gomatrixserverlib.Join {
return true
}
}
if hisVisEv != nil {
hisVis, _ := hisVisEv.HistoryVisibility()
if hisVis == "world_readable" {
return true
}
}
return false
}
// references returns all references pointing to or from this room.
func (w *walker) references(roomID string) (eventLookup, error) {
events, err := w.db.References(w.ctx, roomID)
if err != nil {
return nil, err
}
el := make(eventLookup)
for _, ev := range events {
el.set(ev)
}
return el, nil
}
// state event lookup across multiple rooms keyed on event type
// NOT THREAD SAFE
type eventLookup map[string][]*gomatrixserverlib.HeaderedEvent
func (el eventLookup) set(ev *gomatrixserverlib.HeaderedEvent) {
evs := el[ev.Type()]
if evs == nil {
evs = make([]*gomatrixserverlib.HeaderedEvent, 0)
}
evs = append(evs, ev)
el[ev.Type()] = evs
}
func (el eventLookup) len() int {
sum := 0
for _, evs := range el {
sum += len(evs)
}
return sum
}
func (el eventLookup) events() (events []*gomatrixserverlib.HeaderedEvent) {
for _, evs := range el {
events = append(events, evs...)
}
return
}
type set map[string]bool

486
setup/mscs/msc2946/msc2946_test.go Normal file
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@ -0,0 +1,486 @@
// Copyright 2021 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 msc2946_test
import (
"bytes"
"context"
"crypto/ed25519"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"testing"
"time"
"github.com/gorilla/mux"
"github.com/matrix-org/dendrite/internal/hooks"
"github.com/matrix-org/dendrite/internal/httputil"
roomserver "github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/setup"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/setup/mscs/msc2946"
userapi "github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/gomatrixserverlib"
)
var (
client = &http.Client{
Timeout: 10 * time.Second,
}
)
// Basic sanity check of MSC2946 logic. Tests a single room with a few state events
// and a bit of recursion to subspaces. Makes a graph like:
// Root
// ____|_____
// | | |
// R1 R2 S1
// |_________
// | | |
// R3 R4 S2
// | <-- this link is just a parent, not a child
// R5
//
// Alice is not joined to R4, but R4 is "world_readable".
func TestMSC2946(t *testing.T) {
alice := "@alice:localhost"
// give access token to alice
nopUserAPI := &testUserAPI{
accessTokens: make(map[string]userapi.Device),
}
nopUserAPI.accessTokens["alice"] = userapi.Device{
AccessToken: "alice",
DisplayName: "Alice",
UserID: alice,
}
rootSpace := "!rootspace:localhost"
subSpaceS1 := "!subspaceS1:localhost"
subSpaceS2 := "!subspaceS2:localhost"
room1 := "!room1:localhost"
room2 := "!room2:localhost"
room3 := "!room3:localhost"
room4 := "!room4:localhost"
empty := ""
room5 := "!room5:localhost"
allRooms := []string{
rootSpace, subSpaceS1, subSpaceS2,
room1, room2, room3, room4, room5,
}
rootToR1 := mustCreateEvent(t, fledglingEvent{
RoomID: rootSpace,
Sender: alice,
Type: msc2946.ConstSpaceChildEventType,
StateKey: &room1,
Content: map[string]interface{}{
"via": []string{"localhost"},
"present": true,
},
})
rootToR2 := mustCreateEvent(t, fledglingEvent{
RoomID: rootSpace,
Sender: alice,
Type: msc2946.ConstSpaceChildEventType,
StateKey: &room2,
Content: map[string]interface{}{
"via": []string{"localhost"},
"present": true,
},
})
rootToS1 := mustCreateEvent(t, fledglingEvent{
RoomID: rootSpace,
Sender: alice,
Type: msc2946.ConstSpaceChildEventType,
StateKey: &subSpaceS1,
Content: map[string]interface{}{
"via": []string{"localhost"},
"present": true,
},
})
s1ToR3 := mustCreateEvent(t, fledglingEvent{
RoomID: subSpaceS1,
Sender: alice,
Type: msc2946.ConstSpaceChildEventType,
StateKey: &room3,
Content: map[string]interface{}{
"via": []string{"localhost"},
"present": true,
},
})
s1ToR4 := mustCreateEvent(t, fledglingEvent{
RoomID: subSpaceS1,
Sender: alice,
Type: msc2946.ConstSpaceChildEventType,
StateKey: &room4,
Content: map[string]interface{}{
"via": []string{"localhost"},
"present": true,
},
})
s1ToS2 := mustCreateEvent(t, fledglingEvent{
RoomID: subSpaceS1,
Sender: alice,
Type: msc2946.ConstSpaceChildEventType,
StateKey: &subSpaceS2,
Content: map[string]interface{}{
"via": []string{"localhost"},
"present": true,
},
})
// This is a parent link only
s2ToR5 := mustCreateEvent(t, fledglingEvent{
RoomID: room5,
Sender: alice,
Type: msc2946.ConstSpaceParentEventType,
StateKey: &empty,
Content: map[string]interface{}{
"room_id": subSpaceS2,
"via": []string{"localhost"},
"present": true,
},
})
// history visibility for R4
r4HisVis := mustCreateEvent(t, fledglingEvent{
RoomID: room4,
Sender: "@someone:localhost",
Type: gomatrixserverlib.MRoomHistoryVisibility,
StateKey: &empty,
Content: map[string]interface{}{
"history_visibility": "world_readable",
},
})
var joinEvents []*gomatrixserverlib.HeaderedEvent
for _, roomID := range allRooms {
if roomID == room4 {
continue // not joined to that room
}
joinEvents = append(joinEvents, mustCreateEvent(t, fledglingEvent{
RoomID: roomID,
Sender: alice,
StateKey: &alice,
Type: gomatrixserverlib.MRoomMember,
Content: map[string]interface{}{
"membership": "join",
},
}))
}
roomNameTuple := gomatrixserverlib.StateKeyTuple{
EventType: "m.room.name",
StateKey: "",
}
hisVisTuple := gomatrixserverlib.StateKeyTuple{
EventType: "m.room.history_visibility",
StateKey: "",
}
nopRsAPI := &testRoomserverAPI{
joinEvents: joinEvents,
events: map[string]*gomatrixserverlib.HeaderedEvent{
rootToR1.EventID(): rootToR1,
rootToR2.EventID(): rootToR2,
rootToS1.EventID(): rootToS1,
s1ToR3.EventID(): s1ToR3,
s1ToR4.EventID(): s1ToR4,
s1ToS2.EventID(): s1ToS2,
s2ToR5.EventID(): s2ToR5,
r4HisVis.EventID(): r4HisVis,
},
pubRoomState: map[string]map[gomatrixserverlib.StateKeyTuple]string{
rootSpace: {
roomNameTuple: "Root",
hisVisTuple: "shared",
},
subSpaceS1: {
roomNameTuple: "Sub-Space 1",
hisVisTuple: "joined",
},
subSpaceS2: {
roomNameTuple: "Sub-Space 2",
hisVisTuple: "shared",
},
room1: {
hisVisTuple: "joined",
},
room2: {
hisVisTuple: "joined",
},
room3: {
hisVisTuple: "joined",
},
room4: {
hisVisTuple: "world_readable",
},
room5: {
hisVisTuple: "joined",
},
},
}
allEvents := []*gomatrixserverlib.HeaderedEvent{
rootToR1, rootToR2, rootToS1,
s1ToR3, s1ToR4, s1ToS2,
s2ToR5, r4HisVis,
}
allEvents = append(allEvents, joinEvents...)
router := injectEvents(t, nopUserAPI, nopRsAPI, allEvents)
cancel := runServer(t, router)
defer cancel()
t.Run("returns no events for unknown rooms", func(t *testing.T) {
res := postSpaces(t, 200, "alice", "!unknown:localhost", newReq(t, map[string]interface{}{}))
if len(res.Events) > 0 {
t.Errorf("got %d events, want 0", len(res.Events))
}
if len(res.Rooms) > 0 {
t.Errorf("got %d rooms, want 0", len(res.Rooms))
}
})
t.Run("returns the entire graph", func(t *testing.T) {
res := postSpaces(t, 200, "alice", rootSpace, newReq(t, map[string]interface{}{}))
if len(res.Events) != 7 {
t.Errorf("got %d events, want 7", len(res.Events))
}
if len(res.Rooms) != len(allRooms) {
t.Errorf("got %d rooms, want %d", len(res.Rooms), len(allRooms))
}
})
}
func newReq(t *testing.T, jsonBody map[string]interface{}) *msc2946.SpacesRequest {
t.Helper()
b, err := json.Marshal(jsonBody)
if err != nil {
t.Fatalf("Failed to marshal request: %s", err)
}
var r msc2946.SpacesRequest
if err := json.Unmarshal(b, &r); err != nil {
t.Fatalf("Failed to unmarshal request: %s", err)
}
return &r
}
func runServer(t *testing.T, router *mux.Router) func() {
t.Helper()
externalServ := &http.Server{
Addr: string(":8010"),
WriteTimeout: 60 * time.Second,
Handler: router,
}
go func() {
externalServ.ListenAndServe()
}()
// wait to listen on the port
time.Sleep(500 * time.Millisecond)
return func() {
externalServ.Shutdown(context.TODO())
}
}
func postSpaces(t *testing.T, expectCode int, accessToken, roomID string, req *msc2946.SpacesRequest) *msc2946.SpacesResponse {
t.Helper()
var r msc2946.SpacesRequest
r.Defaults()
data, err := json.Marshal(req)
if err != nil {
t.Fatalf("failed to marshal request: %s", err)
}
httpReq, err := http.NewRequest(
"POST", "http://localhost:8010/_matrix/client/unstable/rooms/"+url.PathEscape(roomID)+"/spaces",
bytes.NewBuffer(data),
)
httpReq.Header.Set("Authorization", "Bearer "+accessToken)
if err != nil {
t.Fatalf("failed to prepare request: %s", err)
}
res, err := client.Do(httpReq)
if err != nil {
t.Fatalf("failed to do request: %s", err)
}
if res.StatusCode != expectCode {
body, _ := ioutil.ReadAll(res.Body)
t.Fatalf("wrong response code, got %d want %d - body: %s", res.StatusCode, expectCode, string(body))
}
if res.StatusCode == 200 {
var result msc2946.SpacesResponse
body, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatalf("response 200 OK but failed to read response body: %s", err)
}
t.Logf("Body: %s", string(body))
if err := json.Unmarshal(body, &result); err != nil {
t.Fatalf("response 200 OK but failed to deserialise JSON : %s\nbody: %s", err, string(body))
}
return &result
}
return nil
}
type testUserAPI struct {
accessTokens map[string]userapi.Device
}
func (u *testUserAPI) InputAccountData(ctx context.Context, req *userapi.InputAccountDataRequest, res *userapi.InputAccountDataResponse) error {
return nil
}
func (u *testUserAPI) PerformAccountCreation(ctx context.Context, req *userapi.PerformAccountCreationRequest, res *userapi.PerformAccountCreationResponse) error {
return nil
}
func (u *testUserAPI) PerformPasswordUpdate(ctx context.Context, req *userapi.PerformPasswordUpdateRequest, res *userapi.PerformPasswordUpdateResponse) error {
return nil
}
func (u *testUserAPI) PerformDeviceCreation(ctx context.Context, req *userapi.PerformDeviceCreationRequest, res *userapi.PerformDeviceCreationResponse) error {
return nil
}
func (u *testUserAPI) PerformDeviceDeletion(ctx context.Context, req *userapi.PerformDeviceDeletionRequest, res *userapi.PerformDeviceDeletionResponse) error {
return nil
}
func (u *testUserAPI) PerformDeviceUpdate(ctx context.Context, req *userapi.PerformDeviceUpdateRequest, res *userapi.PerformDeviceUpdateResponse) error {
return nil
}
func (u *testUserAPI) PerformLastSeenUpdate(ctx context.Context, req *userapi.PerformLastSeenUpdateRequest, res *userapi.PerformLastSeenUpdateResponse) error {
return nil
}
func (u *testUserAPI) PerformAccountDeactivation(ctx context.Context, req *userapi.PerformAccountDeactivationRequest, res *userapi.PerformAccountDeactivationResponse) error {
return nil
}
func (u *testUserAPI) QueryProfile(ctx context.Context, req *userapi.QueryProfileRequest, res *userapi.QueryProfileResponse) error {
return nil
}
func (u *testUserAPI) QueryAccessToken(ctx context.Context, req *userapi.QueryAccessTokenRequest, res *userapi.QueryAccessTokenResponse) error {
dev, ok := u.accessTokens[req.AccessToken]
if !ok {
res.Err = fmt.Errorf("unknown token")
return nil
}
res.Device = &dev
return nil
}
func (u *testUserAPI) QueryDevices(ctx context.Context, req *userapi.QueryDevicesRequest, res *userapi.QueryDevicesResponse) error {
return nil
}
func (u *testUserAPI) QueryAccountData(ctx context.Context, req *userapi.QueryAccountDataRequest, res *userapi.QueryAccountDataResponse) error {
return nil
}
func (u *testUserAPI) QueryDeviceInfos(ctx context.Context, req *userapi.QueryDeviceInfosRequest, res *userapi.QueryDeviceInfosResponse) error {
return nil
}
func (u *testUserAPI) QuerySearchProfiles(ctx context.Context, req *userapi.QuerySearchProfilesRequest, res *userapi.QuerySearchProfilesResponse) error {
return nil
}
type testRoomserverAPI struct {
// use a trace API as it implements method stubs so we don't need to have them here.
// We'll override the functions we care about.
roomserver.RoomserverInternalAPITrace
joinEvents []*gomatrixserverlib.HeaderedEvent
events map[string]*gomatrixserverlib.HeaderedEvent
pubRoomState map[string]map[gomatrixserverlib.StateKeyTuple]string
}
func (r *testRoomserverAPI) QueryBulkStateContent(ctx context.Context, req *roomserver.QueryBulkStateContentRequest, res *roomserver.QueryBulkStateContentResponse) error {
res.Rooms = make(map[string]map[gomatrixserverlib.StateKeyTuple]string)
for _, roomID := range req.RoomIDs {
pubRoomData, ok := r.pubRoomState[roomID]
if ok {
res.Rooms[roomID] = pubRoomData
}
}
return nil
}
func (r *testRoomserverAPI) QueryCurrentState(ctx context.Context, req *roomserver.QueryCurrentStateRequest, res *roomserver.QueryCurrentStateResponse) error {
res.StateEvents = make(map[gomatrixserverlib.StateKeyTuple]*gomatrixserverlib.HeaderedEvent)
checkEvent := func(he *gomatrixserverlib.HeaderedEvent) {
if he.RoomID() != req.RoomID {
return
}
if he.StateKey() == nil {
return
}
tuple := gomatrixserverlib.StateKeyTuple{
EventType: he.Type(),
StateKey: *he.StateKey(),
}
for _, t := range req.StateTuples {
if t == tuple {
res.StateEvents[t] = he
}
}
}
for _, he := range r.joinEvents {
checkEvent(he)
}
for _, he := range r.events {
checkEvent(he)
}
return nil
}
func injectEvents(t *testing.T, userAPI userapi.UserInternalAPI, rsAPI roomserver.RoomserverInternalAPI, events []*gomatrixserverlib.HeaderedEvent) *mux.Router {
t.Helper()
cfg := &config.Dendrite{}
cfg.Defaults()
cfg.Global.ServerName = "localhost"
cfg.MSCs.Database.ConnectionString = "file:msc2946_test.db"
cfg.MSCs.MSCs = []string{"msc2946"}
base := &setup.BaseDendrite{
Cfg: cfg,
PublicClientAPIMux: mux.NewRouter().PathPrefix(httputil.PublicClientPathPrefix).Subrouter(),
PublicFederationAPIMux: mux.NewRouter().PathPrefix(httputil.PublicFederationPathPrefix).Subrouter(),
}
err := msc2946.Enable(base, rsAPI, userAPI)
if err != nil {
t.Fatalf("failed to enable MSC2946: %s", err)
}
for _, ev := range events {
hooks.Run(hooks.KindNewEventPersisted, ev)
}
return base.PublicClientAPIMux
}
type fledglingEvent struct {
Type string
StateKey *string
Content interface{}
Sender string
RoomID string
}
func mustCreateEvent(t *testing.T, ev fledglingEvent) (result *gomatrixserverlib.HeaderedEvent) {
t.Helper()
roomVer := gomatrixserverlib.RoomVersionV6
seed := make([]byte, ed25519.SeedSize) // zero seed
key := ed25519.NewKeyFromSeed(seed)
eb := gomatrixserverlib.EventBuilder{
Sender: ev.Sender,
Depth: 999,
Type: ev.Type,
StateKey: ev.StateKey,
RoomID: ev.RoomID,
}
err := eb.SetContent(ev.Content)
if err != nil {
t.Fatalf("mustCreateEvent: failed to marshal event content %+v", ev.Content)
}
// make sure the origin_server_ts changes so we can test recency
time.Sleep(1 * time.Millisecond)
signedEvent, err := eb.Build(time.Now(), gomatrixserverlib.ServerName("localhost"), "ed25519:test", key, roomVer)
if err != nil {
t.Fatalf("mustCreateEvent: failed to sign event: %s", err)
}
h := signedEvent.Headered(roomVer)
return h
}

183
setup/mscs/msc2946/storage.go Normal file
View File

@ -0,0 +1,183 @@
// Copyright 2021 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 msc2946
import (
"context"
"database/sql"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/gomatrixserverlib"
"github.com/tidwall/gjson"
)
var (
relTypes = map[string]int{
ConstSpaceChildEventType: 1,
ConstSpaceParentEventType: 2,
}
)
type Database interface {
// StoreReference persists a child or parent space mapping.
StoreReference(ctx context.Context, he *gomatrixserverlib.HeaderedEvent) error
// References returns all events which have the given roomID as a parent or child space.
References(ctx context.Context, roomID string) ([]*gomatrixserverlib.HeaderedEvent, error)
}
type DB struct {
db *sql.DB
writer sqlutil.Writer
insertEdgeStmt *sql.Stmt
selectEdgesStmt *sql.Stmt
}
// NewDatabase loads the database for msc2836
func NewDatabase(dbOpts *config.DatabaseOptions) (Database, error) {
if dbOpts.ConnectionString.IsPostgres() {
return newPostgresDatabase(dbOpts)
}
return newSQLiteDatabase(dbOpts)
}
func newPostgresDatabase(dbOpts *config.DatabaseOptions) (Database, error) {
d := DB{
writer: sqlutil.NewDummyWriter(),
}
var err error
if d.db, err = sqlutil.Open(dbOpts); err != nil {
return nil, err
}
_, err = d.db.Exec(`
CREATE TABLE IF NOT EXISTS msc2946_edges (
room_version TEXT NOT NULL,
-- the room ID of the event, the source of the arrow
source_room_id TEXT NOT NULL,
-- the target room ID, the arrow destination
dest_room_id TEXT NOT NULL,
-- the kind of relation, either child or parent (1,2)
rel_type SMALLINT NOT NULL,
event_json TEXT NOT NULL,
CONSTRAINT msc2946_edges_uniq UNIQUE (source_room_id, dest_room_id, rel_type)
);
`)
if err != nil {
return nil, err
}
if d.insertEdgeStmt, err = d.db.Prepare(`
INSERT INTO msc2946_edges(room_version, source_room_id, dest_room_id, rel_type, event_json)
VALUES($1, $2, $3, $4, $5)
ON CONFLICT DO NOTHING
`); err != nil {
return nil, err
}
if d.selectEdgesStmt, err = d.db.Prepare(`
SELECT room_version, event_json FROM msc2946_edges
WHERE source_room_id = $1 OR dest_room_id = $2
`); err != nil {
return nil, err
}
return &d, err
}
func newSQLiteDatabase(dbOpts *config.DatabaseOptions) (Database, error) {
d := DB{
writer: sqlutil.NewExclusiveWriter(),
}
var err error
if d.db, err = sqlutil.Open(dbOpts); err != nil {
return nil, err
}
_, err = d.db.Exec(`
CREATE TABLE IF NOT EXISTS msc2946_edges (
room_version TEXT NOT NULL,
-- the room ID of the event, the source of the arrow
source_room_id TEXT NOT NULL,
-- the target room ID, the arrow destination
dest_room_id TEXT NOT NULL,
-- the kind of relation, either child or parent (1,2)
rel_type SMALLINT NOT NULL,
event_json TEXT NOT NULL,
UNIQUE (source_room_id, dest_room_id, rel_type)
);
`)
if err != nil {
return nil, err
}
if d.insertEdgeStmt, err = d.db.Prepare(`
INSERT INTO msc2946_edges(room_version, source_room_id, dest_room_id, rel_type, event_json)
VALUES($1, $2, $3, $4, $5)
ON CONFLICT DO NOTHING
`); err != nil {
return nil, err
}
if d.selectEdgesStmt, err = d.db.Prepare(`
SELECT room_version, event_json FROM msc2946_edges
WHERE source_room_id = $1 OR dest_room_id = $2
`); err != nil {
return nil, err
}
return &d, err
}
func (d *DB) StoreReference(ctx context.Context, he *gomatrixserverlib.HeaderedEvent) error {
target := SpaceTarget(he)
if target == "" {
return nil // malformed event
}
relType := relTypes[he.Type()]
_, err := d.insertEdgeStmt.ExecContext(ctx, he.RoomVersion, he.RoomID(), target, relType, he.JSON())
return err
}
func (d *DB) References(ctx context.Context, roomID string) ([]*gomatrixserverlib.HeaderedEvent, error) {
rows, err := d.selectEdgesStmt.QueryContext(ctx, roomID, roomID)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "failed to close References")
refs := make([]*gomatrixserverlib.HeaderedEvent, 0)
for rows.Next() {
var roomVer string
var jsonBytes []byte
if err := rows.Scan(&roomVer, &jsonBytes); err != nil {
return nil, err
}
ev, err := gomatrixserverlib.NewEventFromTrustedJSON(jsonBytes, false, gomatrixserverlib.RoomVersion(roomVer))
if err != nil {
return nil, err
}
he := ev.Headered(gomatrixserverlib.RoomVersion(roomVer))
refs = append(refs, he)
}
return refs, nil
}
// SpaceTarget returns the destination room ID for the space event. This is either a child or a parent
// depending on the event type.
func SpaceTarget(he *gomatrixserverlib.HeaderedEvent) string {
if he.StateKey() == nil {
return "" // no-op
}
switch he.Type() {
case ConstSpaceParentEventType:
return gjson.GetBytes(he.Content(), "room_id").Str
case ConstSpaceChildEventType:
return *he.StateKey()
}
return ""
}

3
setup/mscs/mscs.go
View File

@ -21,6 +21,7 @@ import (
"github.com/matrix-org/dendrite/setup"
"github.com/matrix-org/dendrite/setup/mscs/msc2836"
"github.com/matrix-org/dendrite/setup/mscs/msc2946"
"github.com/matrix-org/util"
)
@ -39,6 +40,8 @@ func EnableMSC(base *setup.BaseDendrite, monolith *setup.Monolith, msc string) e
switch msc {
case "msc2836":
return msc2836.Enable(base, monolith.RoomserverAPI, monolith.FederationSenderAPI, monolith.UserAPI, monolith.KeyRing)
case "msc2946":
return msc2946.Enable(base, monolith.RoomserverAPI, monolith.UserAPI)
default:
return fmt.Errorf("EnableMSC: unknown msc '%s'", msc)
}