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bugfix: when a user's key changes, don't notify everyone on the server (#1253)

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* bugfix: when a user's key changes, don't notify everyone on the server

Instead just notify the users you share a room with.

* Update whitelist
This commit is contained in:
Kegsay 2020-08-10 12:38:33 +01:00 committed by GitHub
parent 58998e9874
commit fdabba1851
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 34 additions and 1 deletions
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27
syncapi/internal/keychange.go
View File

@ -95,6 +95,8 @@ func DeviceListCatchup(
util.GetLogger(ctx).WithError(queryRes.Error).Error("QueryKeyChanges failed")
return hasNew, nil
}
// QueryKeyChanges gets ALL users who have changed keys, we want the ones who share rooms with the user.
queryRes.UserIDs = filterSharedUsers(ctx, stateAPI, userID, queryRes.UserIDs)
util.GetLogger(ctx).Debugf(
"QueryKeyChanges request p=%d,off=%d,to=%d response p=%d off=%d uids=%v",
partition, offset, toOffset, queryRes.Partition, queryRes.Offset, queryRes.UserIDs,
@ -217,6 +219,31 @@ func TrackChangedUsers(
return changed, left, nil
}
func filterSharedUsers(
ctx context.Context, stateAPI currentstateAPI.CurrentStateInternalAPI, userID string, usersWithChangedKeys []string,
) []string {
var result []string
var sharedUsersRes currentstateAPI.QuerySharedUsersResponse
err := stateAPI.QuerySharedUsers(ctx, &currentstateAPI.QuerySharedUsersRequest{
UserID: userID,
}, &sharedUsersRes)
if err != nil {
// default to all users so we do needless queries rather than miss some important device update
return usersWithChangedKeys
}
// We forcibly put ourselves in this list because we should be notified about our own device updates
// and if we are in 0 rooms then we don't technically share any room with ourselves so we wouldn't
// be notified about key changes.
sharedUsersRes.UserIDsToCount[userID] = 1
for _, uid := range usersWithChangedKeys {
if sharedUsersRes.UserIDsToCount[uid] > 0 {
result = append(result, uid)
}
}
return result
}
func joinedRooms(res *types.Response, userID string) []string {
var roomIDs []string
for roomID, join := range res.Rooms.Join {

2
sytest-whitelist
View File

@ -138,7 +138,7 @@ Users receive device_list updates for their own devices
Get left notifs for other users in sync and /keys/changes when user leaves
Local device key changes get to remote servers
Local device key changes get to remote servers with correct prev_id
#Server correctly handles incoming m.device_list_update
Server correctly handles incoming m.device_list_update
Can add account data
Can add account data to room
Can get account data without syncing

6
userapi/internal/api.go
View File

@ -31,6 +31,7 @@ import (
"github.com/matrix-org/dendrite/userapi/storage/devices"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/util"
"github.com/sirupsen/logrus"
)
type UserInternalAPI struct {
@ -98,6 +99,11 @@ func (a *UserInternalAPI) PerformAccountCreation(ctx context.Context, req *api.P
return nil
}
func (a *UserInternalAPI) PerformDeviceCreation(ctx context.Context, req *api.PerformDeviceCreationRequest, res *api.PerformDeviceCreationResponse) error {
util.GetLogger(ctx).WithFields(logrus.Fields{
"localpart": req.Localpart,
"device_id": req.DeviceID,
"display_name": req.DeviceDisplayName,
}).Info("PerformDeviceCreation")
dev, err := a.DeviceDB.CreateDevice(ctx, req.Localpart, req.DeviceID, req.AccessToken, req.DeviceDisplayName)
if err != nil {
return err