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Handle room transitions to 'leave' in incremental /sync requests (#104)

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* Add test for transition to leave

* Add test for join/leave in the same /sync response
This commit is contained in:
Kegsay 2017-05-17 10:25:59 +01:00 committed by GitHub
parent 675759c192
commit 0a3d44a80a
3 changed files with 260 additions and 83 deletions
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155
src/github.com/matrix-org/dendrite/cmd/syncserver-integration-tests/main.go
View file

@ -296,6 +296,16 @@ func testSyncServer(syncServerCmdChan chan error, userID, since, want string) {
}
}
func writeToRoomServerLog(indexes ...int) {
var roomEvents []string
for _, i := range indexes {
roomEvents = append(roomEvents, outputRoomEventTestData[i])
}
if err := exe.WriteToTopic(inputTopic, canonicalJSONInput(roomEvents)); err != nil {
panic(err)
}
}
// Runs a battery of sync server tests against test data in testdata.go
// testdata.go has a list of OutputRoomEvents which will be fed into the kafka log which the sync server will consume.
// The tests will pause at various points in this list to conduct tests on the /sync responses before continuing.
@ -311,9 +321,11 @@ func main() {
// $ curl -XPUT -d '{"msgtype":"m.text","body":"hello world 2"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/2?access_token=@alice:localhost"
// $ curl -XPUT -d '{"msgtype":"m.text","body":"hello world 3"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/3?access_token=@alice:localhost"
// $ curl -XPUT -d '{"name":"Custom Room Name"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.name?access_token=@alice:localhost"
if err := exe.WriteToTopic(inputTopic, canonicalJSONInput(outputRoomEventTestData[0:9])); err != nil {
panic(err)
}
writeToRoomServerLog(
i0StateRoomCreate, i1StateAliceJoin, i2StatePowerLevels, i3StateJoinRules, i4StateHistoryVisibility,
i5AliceMsg, i6AliceMsg, i7AliceMsg, i8StateAliceRoomName,
)
// Make sure initial sync works TODO: prev_batch
testSyncServer(syncServerCmdChan, "@alice:localhost", "", `{
"account_data": {
@ -338,15 +350,15 @@ func main() {
},
"timeline": {
"events": [`+
clientEventTestData[0]+","+
clientEventTestData[1]+","+
clientEventTestData[2]+","+
clientEventTestData[3]+","+
clientEventTestData[4]+","+
clientEventTestData[5]+","+
clientEventTestData[6]+","+
clientEventTestData[7]+","+
clientEventTestData[8]+`],
clientEventTestData[i0StateRoomCreate]+","+
clientEventTestData[i1StateAliceJoin]+","+
clientEventTestData[i2StatePowerLevels]+","+
clientEventTestData[i3StateJoinRules]+","+
clientEventTestData[i4StateHistoryVisibility]+","+
clientEventTestData[i5AliceMsg]+","+
clientEventTestData[i6AliceMsg]+","+
clientEventTestData[i7AliceMsg]+","+
clientEventTestData[i8StateAliceRoomName]+`],
"limited": true,
"prev_batch": ""
}
@ -387,9 +399,7 @@ func main() {
}`)
// $ curl -XPUT -d '{"membership":"join"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.member/@bob:localhost?access_token=@bob:localhost"
if err := exe.WriteToTopic(inputTopic, canonicalJSONInput([]string{outputRoomEventTestData[9]})); err != nil {
panic(err)
}
writeToRoomServerLog(i9StateBobJoin)
// Make sure alice sees it TODO: prev_batch
testSyncServer(syncServerCmdChan, "@alice:localhost", "9", `{
@ -416,7 +426,7 @@ func main() {
"timeline": {
"limited": false,
"prev_batch": "",
"events": [`+clientEventTestData[9]+`]
"events": [`+clientEventTestData[i9StateBobJoin]+`]
}
}
},
@ -445,18 +455,18 @@ func main() {
},
"state": {
"events": [`+
clientEventTestData[0]+","+
clientEventTestData[1]+","+
clientEventTestData[2]+","+
clientEventTestData[3]+","+
clientEventTestData[4]+","+
clientEventTestData[8]+`]
clientEventTestData[i0StateRoomCreate]+","+
clientEventTestData[i1StateAliceJoin]+","+
clientEventTestData[i2StatePowerLevels]+","+
clientEventTestData[i3StateJoinRules]+","+
clientEventTestData[i4StateHistoryVisibility]+","+
clientEventTestData[i8StateAliceRoomName]+`]
},
"timeline": {
"limited": false,
"prev_batch": "",
"events": [`+
clientEventTestData[9]+`]
clientEventTestData[i9StateBobJoin]+`]
}
}
},
@ -465,9 +475,8 @@ func main() {
}`)
// $ curl -XPUT -d '{"msgtype":"m.text","body":"hello alice"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/1?access_token=@bob:localhost"
if err := exe.WriteToTopic(inputTopic, canonicalJSONInput([]string{outputRoomEventTestData[10]})); err != nil {
panic(err)
}
writeToRoomServerLog(i10BobMsg)
// Make sure alice can see everything around the join point for bob TODO: prev_batch
testSyncServer(syncServerCmdChan, "@alice:localhost", "7", `{
"account_data": {
@ -494,10 +503,10 @@ func main() {
"limited": false,
"prev_batch": "",
"events": [`+
clientEventTestData[7]+","+
clientEventTestData[8]+","+
clientEventTestData[9]+","+
clientEventTestData[10]+`]
clientEventTestData[i7AliceMsg]+","+
clientEventTestData[i8StateAliceRoomName]+","+
clientEventTestData[i9StateBobJoin]+","+
clientEventTestData[i10BobMsg]+`]
}
}
},
@ -508,9 +517,7 @@ func main() {
// $ curl -XPUT -d '{"name":"A Different Custom Room Name"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.name?access_token=@alice:localhost"
// $ curl -XPUT -d '{"msgtype":"m.text","body":"hello bob"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/2?access_token=@alice:localhost"
// $ curl -XPUT -d '{"membership":"invite"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.member/@charlie:localhost?access_token=@bob:localhost"
if err := exe.WriteToTopic(inputTopic, canonicalJSONInput(outputRoomEventTestData[11:14])); err != nil {
panic(err)
}
writeToRoomServerLog(i11StateAliceRoomName, i12AliceMsg, i13StateBobInviteCharlie)
// Make sure charlie sees the invite both with and without a ?since= token
// TODO: Invite state should include the invite event and the room name.
@ -540,8 +547,90 @@ func main() {
// $ curl -XPUT -d '{"membership":"join"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.member/@charlie:localhost?access_token=@charlie:localhost"
// $ curl -XPUT -d '{"msgtype":"m.text","body":"not charlie..."}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/3?access_token=@alice:localhost"
// $ curl -XPUT -d '{"membership":"leave"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.member/@charlie:localhost?access_token=@alice:localhost"
writeToRoomServerLog(i14StateCharlieJoin, i15AliceMsg, i16StateAliceKickCharlie)
// Check transitions to leave work
testSyncServer(syncServerCmdChan, "@charlie:localhost", "15", `{
"account_data": {
"events": []
},
"next_batch": "17",
"presence": {
"events": []
},
"rooms": {
"invite": {},
"join": {},
"leave": {
"!PjrbIMW2cIiaYF4t:localhost": {
"state": {
"events": []
},
"timeline": {
"limited": false,
"prev_batch": "",
"events": [`+
clientEventTestData[i15AliceMsg]+","+
clientEventTestData[i16StateAliceKickCharlie]+`]
}
}
}
}
}`)
// Test joining and leaving the same room in a single /sync request puts the room in the 'leave' section.
// TODO: Use an earlier since value to assert that the /sync response doesn't leak messages
// from before charlie was joined to the room. Currently it does leak because RecentEvents doesn't
// take membership into account.
testSyncServer(syncServerCmdChan, "@charlie:localhost", "14", `{
"account_data": {
"events": []
},
"next_batch": "17",
"presence": {
"events": []
},
"rooms": {
"invite": {},
"join": {},
"leave": {
"!PjrbIMW2cIiaYF4t:localhost": {
"state": {
"events": []
},
"timeline": {
"limited": false,
"prev_batch": "",
"events": [`+
clientEventTestData[i14StateCharlieJoin]+","+
clientEventTestData[i15AliceMsg]+","+
clientEventTestData[i16StateAliceKickCharlie]+`]
}
}
}
}
}`)
// $ curl -XPUT -d '{"msgtype":"m.text","body":"why did you kick charlie"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/3?access_token=@bob:localhost"
// $ curl -XPUT -d '{"name":"No Charlies"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.name?access_token=@alice:localhost"
writeToRoomServerLog(i17BobMsg, i18StateAliceRoomName)
// Check that users don't see state changes in rooms after they have left
testSyncServer(syncServerCmdChan, "@charlie:localhost", "17", `{
"account_data": {
"events": []
},
"next_batch": "19",
"presence": {
"events": []
},
"rooms": {
"invite": {},
"join": {},
"leave": {}
}
}`)
// $ curl -XPUT -d '{"msgtype":"m.text","body":"whatever"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/3?access_token=@bob:localhost"
// $ curl -XPUT -d '{"membership":"leave"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/state/m.room.member/@bob:localhost?access_token=@bob:localhost"
// $ curl -XPUT -d '{"msgtype":"m.text","body":"im alone now"}' "http://localhost:8009/_matrix/client/r0/rooms/%21PjrbIMW2cIiaYF4t:localhost/send/m.room.message/3?access_token=@alice:localhost"

31
src/github.com/matrix-org/dendrite/cmd/syncserver-integration-tests/testdata.go
View file

@ -14,6 +14,37 @@
package main
const (
i0StateRoomCreate = iota
i1StateAliceJoin
i2StatePowerLevels
i3StateJoinRules
i4StateHistoryVisibility
i5AliceMsg
i6AliceMsg
i7AliceMsg
i8StateAliceRoomName
i9StateBobJoin
i10BobMsg
i11StateAliceRoomName
i12AliceMsg
i13StateBobInviteCharlie
i14StateCharlieJoin
i15AliceMsg
i16StateAliceKickCharlie
i17BobMsg
i18StateAliceRoomName
i19BobMsg
i20StateBobLeave
i21AliceMsg
i22StateAliceInviteBob
i23StateBobRejectInvite
i24AliceMsg
i25StateAliceRoomName
i26StateCharlieJoin
i27CharlieMsg
)
var outputRoomEventTestData = []string{
// $ curl -XPOST -d '{}' "http://localhost:8009/_matrix/client/r0/createRoom?access_token=@alice:localhost"
`{"Event":{"auth_events":[],"content":{"creator":"@alice:localhost"},"depth":1,"event_id":"$xz0fUB8zNMTGFh1W:localhost","hashes":{"sha256":"KKkpxS8NoH0igBbL3J+nJ39MRlmA7QgW4BGL7Fv4ASI"},"origin":"localhost","origin_server_ts":1494411218382,"prev_events":[],"room_id":"!PjrbIMW2cIiaYF4t:localhost","sender":"@alice:localhost","signatures":{"localhost":{"ed25519:something":"uZG5Q/Hs2Z611gFlZPdwomomRJKf70xV2FQV+gLWM1XgzkLDRlRF3cBZc9y3CnHKnV/upTcXs7Op2/GmgD3UBw"}},"state_key":"","type":"m.room.create"},"VisibilityEventIDs":null,"LatestEventIDs":["$xz0fUB8zNMTGFh1W:localhost"],"AddsStateEventIDs":["$xz0fUB8zNMTGFh1W:localhost"],"RemovesStateEventIDs":null,"LastSentEventID":""}`,

157
src/github.com/matrix-org/dendrite/syncapi/storage/syncserver.go
View file

@ -25,6 +25,12 @@ import (
"github.com/matrix-org/gomatrixserverlib"
)
type stateDelta struct {
roomID string
stateEvents []gomatrixserverlib.Event
membership string
}
// SyncServerDatabase represents a sync server database
type SyncServerDatabase struct {
db *sql.DB
@ -115,67 +121,44 @@ func (d *SyncServerDatabase) SyncStreamPosition() (types.StreamPosition, error)
// IncrementalSync returns all the data needed in order to create an incremental sync response.
func (d *SyncServerDatabase) IncrementalSync(userID string, fromPos, toPos types.StreamPosition, numRecentEventsPerRoom int) (res *types.Response, returnErr error) {
returnErr = runTransaction(d.db, func(txn *sql.Tx) error {
roomIDs, err := d.roomstate.SelectRoomIDsWithMembership(txn, userID, "join")
if err != nil {
return err
}
state, err := d.events.StateBetween(txn, fromPos, toPos)
// Work out which rooms to return in the response. This is done by getting not only the currently
// joined rooms, but also which rooms have membership transitions for this user between the 2 stream positions.
// This works out what the 'state' key should be for each room as well as which membership block
// to put the room into.
deltas, err := d.getStateDeltas(txn, fromPos, toPos, userID)
if err != nil {
return err
}
res = types.NewResponse(toPos)
// Implement membership change algorithm: https://github.com/matrix-org/synapse/blob/v0.19.3/synapse/handlers/sync.py#L821
// - Get membership list changes for this user in this sync response
// - For each room which has membership list changes:
// * Check if the room is 'newly joined' (insufficient to just check for a join event because we allow dupe joins TODO).
// If it is, then we need to send the full room state down (and 'limited' is always true).
// * Check if user is still CURRENTLY invited to the room. If so, add room to 'invited' block.
// * TODO Check if the user is CURRENTLY left/banned. If so, add room to 'archived' block.
// work out which rooms transitioned to 'joined' between the 2 stream positions and add full state where needed.
for roomID, stateEvents := range state {
for _, ev := range stateEvents {
// TODO: Currently this will incorrectly add rooms which were ALREADY joined but they sent another no-op join event.
// We should be checking if the user was already joined at fromPos and not proceed if so. As a result of this,
// dupe join events will result in the entire room state coming down to the client again. This is added in
// the 'state' part of the response though, so is transparent modulo bandwidth concerns as it is not added to
// the timeline.
if ev.Type() == "m.room.member" && ev.StateKeyEquals(userID) {
var memberContent events.MemberContent
if err := json.Unmarshal(ev.Content(), &memberContent); err != nil {
return err
}
if memberContent.Membership != "join" {
continue
}
allState, err := d.roomstate.CurrentState(txn, roomID)
if err != nil {
return err
}
state[roomID] = allState
}
}
}
for _, roomID := range roomIDs {
recentEvents, err := d.events.RecentEventsInRoom(txn, roomID, fromPos, toPos, numRecentEventsPerRoom)
for _, delta := range deltas {
recentEvents, err := d.events.RecentEventsInRoom(txn, delta.roomID, fromPos, toPos, numRecentEventsPerRoom)
if err != nil {
return err
}
state[roomID] = removeDuplicates(state[roomID], recentEvents)
delta.stateEvents = removeDuplicates(delta.stateEvents, recentEvents) // roll back
jr := types.NewJoinResponse()
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
jr.State.Events = gomatrixserverlib.ToClientEvents(state[roomID], gomatrixserverlib.FormatSync)
res.Rooms.Join[roomID] = *jr
switch delta.membership {
case "join":
jr := types.NewJoinResponse()
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
jr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Join[delta.roomID] = *jr
case "leave":
fallthrough // transitions to leave are the same as ban
case "ban":
// TODO: recentEvents may contain events that this user is not allowed to see because they are
// no longer in the room.
lr := types.NewLeaveResponse()
lr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
lr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
lr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Leave[delta.roomID] = *lr
}
}
// TODO: This should be done in getStateDeltas
return d.addInvitesToResponse(txn, userID, res)
})
return
@ -242,6 +225,67 @@ func (d *SyncServerDatabase) addInvitesToResponse(txn *sql.Tx, userID string, re
return nil
}
func (d *SyncServerDatabase) getStateDeltas(txn *sql.Tx, fromPos, toPos types.StreamPosition, userID string) ([]stateDelta, error) {
// Implement membership change algorithm: https://github.com/matrix-org/synapse/blob/v0.19.3/synapse/handlers/sync.py#L821
// - Get membership list changes for this user in this sync response
// - For each room which has membership list changes:
// * Check if the room is 'newly joined' (insufficient to just check for a join event because we allow dupe joins TODO).
// If it is, then we need to send the full room state down (and 'limited' is always true).
// * Check if user is still CURRENTLY invited to the room. If so, add room to 'invited' block.
// * Check if the user is CURRENTLY (TODO) left/banned. If so, add room to 'archived' block.
// - Get all CURRENTLY joined rooms, and add them to 'joined' block.
var deltas []stateDelta
// get all the state events ever between these two positions
state, err := d.events.StateBetween(txn, fromPos, toPos)
if err != nil {
return nil, err
}
for roomID, stateEvents := range state {
for _, ev := range stateEvents {
// TODO: Currently this will incorrectly add rooms which were ALREADY joined but they sent another no-op join event.
// We should be checking if the user was already joined at fromPos and not proceed if so. As a result of this,
// dupe join events will result in the entire room state coming down to the client again. This is added in
// the 'state' part of the response though, so is transparent modulo bandwidth concerns as it is not added to
// the timeline.
if membership := getMembershipFromEvent(&ev, userID); membership != "" {
if membership == "join" {
// send full room state down instead of a delta
var allState []gomatrixserverlib.Event
allState, err = d.roomstate.CurrentState(txn, roomID)
if err != nil {
return nil, err
}
state[roomID] = allState
continue // we'll add this room in when we do joined rooms
}
deltas = append(deltas, stateDelta{
membership: membership,
stateEvents: stateEvents,
roomID: roomID,
})
break
}
}
}
// Add in currently joined rooms
joinedRoomIDs, err := d.roomstate.SelectRoomIDsWithMembership(txn, userID, "join")
if err != nil {
return nil, err
}
for _, joinedRoomID := range joinedRoomIDs {
deltas = append(deltas, stateDelta{
membership: "join",
stateEvents: state[joinedRoomID],
roomID: joinedRoomID,
})
}
return deltas, nil
}
// There may be some overlap where events in stateEvents are already in recentEvents, so filter
// them out so we don't include them twice in the /sync response. They should be in recentEvents
// only, so clients get to the correct state once they have rolled forward.
@ -267,6 +311,19 @@ func removeDuplicates(stateEvents, recentEvents []gomatrixserverlib.Event) []gom
return stateEvents
}
// getMembershipFromEvent returns the value of content.membership iff the event is a state event
// with type 'm.room.member' and state_key of userID. Otherwise, an empty string is returned.
func getMembershipFromEvent(ev *gomatrixserverlib.Event, userID string) string {
if ev.Type() == "m.room.member" && ev.StateKeyEquals(userID) {
var memberContent events.MemberContent
if err := json.Unmarshal(ev.Content(), &memberContent); err != nil {
return ""
}
return memberContent.Membership
}
return ""
}
func runTransaction(db *sql.DB, fn func(txn *sql.Tx) error) (err error) {
txn, err := db.Begin()
if err != nil {