PerformLeaveRequest implements api.FederationInternalAPI
( ctx context.Context, request *api.PerformLeaveRequest, response *api.PerformLeaveResponse, )
| 483 | |
| 484 | // PerformLeaveRequest implements api.FederationInternalAPI |
| 485 | func (r *FederationInternalAPI) PerformLeave( |
| 486 | ctx context.Context, |
| 487 | request *api.PerformLeaveRequest, |
| 488 | response *api.PerformLeaveResponse, |
| 489 | ) (err error) { |
| 490 | // Deduplicate the server names we were provided. |
| 491 | util.SortAndUnique(request.ServerNames) |
| 492 | |
| 493 | // Try each server that we were provided until we land on one that |
| 494 | // successfully completes the make-leave send-leave dance. |
| 495 | for _, serverName := range request.ServerNames { |
| 496 | // Try to perform a make_leave using the information supplied in the |
| 497 | // request. |
| 498 | respMakeLeave, err := r.federation.MakeLeave( |
| 499 | ctx, |
| 500 | serverName, |
| 501 | request.RoomID, |
| 502 | request.UserID, |
| 503 | ) |
| 504 | if err != nil { |
| 505 | // TODO: Check if the user was not allowed to leave the room. |
| 506 | logrus.WithError(err).Warnf("r.federation.MakeLeave failed") |
| 507 | r.statistics.ForServer(serverName).Failure() |
| 508 | continue |
| 509 | } |
| 510 | |
| 511 | // Set all the fields to be what they should be, this should be a no-op |
| 512 | // but it's possible that the remote server returned us something "odd" |
| 513 | respMakeLeave.LeaveEvent.Type = gomatrixserverlib.MRoomMember |
| 514 | respMakeLeave.LeaveEvent.Sender = request.UserID |
| 515 | respMakeLeave.LeaveEvent.StateKey = &request.UserID |
| 516 | respMakeLeave.LeaveEvent.RoomID = request.RoomID |
| 517 | respMakeLeave.LeaveEvent.Redacts = "" |
| 518 | if respMakeLeave.LeaveEvent.Content == nil { |
| 519 | content := map[string]interface{}{ |
| 520 | "membership": "leave", |
| 521 | } |
| 522 | if err = respMakeLeave.LeaveEvent.SetContent(content); err != nil { |
| 523 | logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.SetContent failed") |
| 524 | continue |
| 525 | } |
| 526 | } |
| 527 | if err = respMakeLeave.LeaveEvent.SetUnsigned(struct{}{}); err != nil { |
| 528 | logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.SetUnsigned failed") |
| 529 | continue |
| 530 | } |
| 531 | |
| 532 | // Work out if we support the room version that has been supplied in |
| 533 | // the make_leave response. |
| 534 | if _, err = respMakeLeave.RoomVersion.EventFormat(); err != nil { |
| 535 | return gomatrixserverlib.UnsupportedRoomVersionError{} |
| 536 | } |
| 537 | |
| 538 | // Build the leave event. |
| 539 | event, err := respMakeLeave.LeaveEvent.Build( |
| 540 | time.Now(), |
| 541 | r.cfg.Matrix.ServerName, |
| 542 | r.cfg.Matrix.KeyID, |