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Resolve state after event against current room state when determining latest state changes (#1479)
* Resolve state after event against current room state when determining latest state changes * Update sytest-whitelist * Update sytest-whitelist, blacklist
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@ -215,10 +215,27 @@ func (u *latestEventsUpdater) latestState() error {
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var err error
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var err error
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roomState := state.NewStateResolution(u.api.DB, *u.roomInfo)
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roomState := state.NewStateResolution(u.api.DB, *u.roomInfo)
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// Get a list of the current latest events.
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// Get a list of the current room state events if available.
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latestStateAtEvents := make([]types.StateAtEvent, len(u.latest))
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var currentState []types.StateEntry
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if u.roomInfo.StateSnapshotNID != 0 {
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currentState, _ = roomState.LoadStateAtSnapshot(u.ctx, u.roomInfo.StateSnapshotNID)
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}
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// Get a list of the current latest events. This will include both
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// the current room state and the latest events after the input event.
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// The idea is that we will perform state resolution on this set and
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// any conflicting events will be resolved properly.
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latestStateAtEvents := make([]types.StateAtEvent, len(u.latest)+len(currentState))
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offset := 0
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for i := range currentState {
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latestStateAtEvents[i] = types.StateAtEvent{
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BeforeStateSnapshotNID: u.roomInfo.StateSnapshotNID,
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StateEntry: currentState[i],
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}
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offset++
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}
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for i := range u.latest {
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for i := range u.latest {
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latestStateAtEvents[i] = u.latest[i].StateAtEvent
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latestStateAtEvents[offset+i] = u.latest[i].StateAtEvent
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}
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}
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// Takes the NIDs of the latest events and creates a state snapshot
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// Takes the NIDs of the latest events and creates a state snapshot
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@ -118,7 +118,7 @@ func (v StateResolution) LoadCombinedStateAfterEvents(
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// the snapshot of the room state before them was the same.
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// the snapshot of the room state before them was the same.
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stateBlockNIDLists, err := v.db.StateBlockNIDs(ctx, uniqueStateSnapshotNIDs(stateNIDs))
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stateBlockNIDLists, err := v.db.StateBlockNIDs(ctx, uniqueStateSnapshotNIDs(stateNIDs))
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if err != nil {
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if err != nil {
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return nil, err
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return nil, fmt.Errorf("v.db.StateBlockNIDs: %w", err)
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}
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}
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var stateBlockNIDs []types.StateBlockNID
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var stateBlockNIDs []types.StateBlockNID
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@ -131,7 +131,7 @@ func (v StateResolution) LoadCombinedStateAfterEvents(
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// multiple snapshots.
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// multiple snapshots.
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stateEntryLists, err := v.db.StateEntries(ctx, uniqueStateBlockNIDs(stateBlockNIDs))
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stateEntryLists, err := v.db.StateEntries(ctx, uniqueStateBlockNIDs(stateBlockNIDs))
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if err != nil {
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if err != nil {
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return nil, err
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return nil, fmt.Errorf("v.db.StateEntries: %w", err)
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}
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}
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stateBlockNIDsMap := stateBlockNIDListMap(stateBlockNIDLists)
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stateBlockNIDsMap := stateBlockNIDListMap(stateBlockNIDLists)
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stateEntriesMap := stateEntryListMap(stateEntryLists)
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stateEntriesMap := stateEntryListMap(stateEntryLists)
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@ -623,7 +623,7 @@ func (v StateResolution) calculateAndStoreStateAfterManyEvents(
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v.calculateStateAfterManyEvents(ctx, v.roomInfo.RoomVersion, prevStates)
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v.calculateStateAfterManyEvents(ctx, v.roomInfo.RoomVersion, prevStates)
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metrics.algorithm = algorithm
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metrics.algorithm = algorithm
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if err != nil {
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if err != nil {
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return metrics.stop(0, err)
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return metrics.stop(0, fmt.Errorf("v.calculateStateAfterManyEvents: %w", err))
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}
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}
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// TODO: Check if we can encode the new state as a delta against the
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// TODO: Check if we can encode the new state as a delta against the
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@ -642,6 +642,7 @@ func (v StateResolution) calculateStateAfterManyEvents(
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// First stage: load the state after each of the prev events.
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// First stage: load the state after each of the prev events.
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combined, err = v.LoadCombinedStateAfterEvents(ctx, prevStates)
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combined, err = v.LoadCombinedStateAfterEvents(ctx, prevStates)
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if err != nil {
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if err != nil {
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err = fmt.Errorf("v.LoadCombinedStateAfterEvents: %w", err)
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algorithm = "_load_combined_state"
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algorithm = "_load_combined_state"
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return
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return
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}
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}
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@ -672,6 +673,7 @@ func (v StateResolution) calculateStateAfterManyEvents(
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var resolved []types.StateEntry
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var resolved []types.StateEntry
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resolved, err = v.resolveConflicts(ctx, roomVersion, notConflicted, conflicts)
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resolved, err = v.resolveConflicts(ctx, roomVersion, notConflicted, conflicts)
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if err != nil {
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if err != nil {
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err = fmt.Errorf("v.resolveConflits: %w", err)
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algorithm = "_resolve_conflicts"
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algorithm = "_resolve_conflicts"
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return
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return
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}
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}
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@ -52,4 +52,9 @@ Inbound federation accepts a second soft-failed event
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Outbound federation requests missing prev_events and then asks for /state_ids and resolves the state
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Outbound federation requests missing prev_events and then asks for /state_ids and resolves the state
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# We don't implement lazy membership loading yet.
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# We don't implement lazy membership loading yet.
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The only membership state included in a gapped incremental sync is for senders in the timeline
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The only membership state included in a gapped incremental sync is for senders in the timeline
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# Blacklisted out of flakiness after #1479
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Invited user can reject local invite after originator leaves
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Invited user can reject invite for empty room
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If user leaves room, remote user changes device and rejoins we see update in /sync and /keys/changes
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@ -400,8 +400,6 @@ Uninvited users cannot join the room
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Users cannot invite themselves to a room
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Users cannot invite themselves to a room
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Users cannot invite a user that is already in the room
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Users cannot invite a user that is already in the room
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Invited user can reject invite
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Invited user can reject invite
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Invited user can reject invite for empty room
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Invited user can reject local invite after originator leaves
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PUT /rooms/:room_id/typing/:user_id sets typing notification
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PUT /rooms/:room_id/typing/:user_id sets typing notification
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Typing notification sent to local room members
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Typing notification sent to local room members
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Typing notifications also sent to remote room members
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Typing notifications also sent to remote room members
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@ -431,7 +429,6 @@ A prev_batch token can be used in the v1 messages API
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We don't send redundant membership state across incremental syncs by default
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We don't send redundant membership state across incremental syncs by default
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Typing notifications don't leak
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Typing notifications don't leak
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Users cannot kick users from a room they are not in
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Users cannot kick users from a room they are not in
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Users cannot kick users who have already left a room
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User appears in user directory
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User appears in user directory
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User directory correctly update on display name change
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User directory correctly update on display name change
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User in shared private room does appear in user directory
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User in shared private room does appear in user directory
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@ -451,7 +448,6 @@ Banned servers cannot backfill
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Inbound /v1/send_leave rejects leaves from other servers
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Inbound /v1/send_leave rejects leaves from other servers
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Guest users can accept invites to private rooms over federation
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Guest users can accept invites to private rooms over federation
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AS user (not ghost) can join room without registering
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AS user (not ghost) can join room without registering
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If user leaves room, remote user changes device and rejoins we see update in /sync and /keys/changes
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Can search public room list
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Can search public room list
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Can get remote public room list
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Can get remote public room list
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Asking for a remote rooms list, but supplying the local server's name, returns the local rooms list
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Asking for a remote rooms list, but supplying the local server's name, returns the local rooms list
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