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Roomserver perform leave (#1004)
* First pass at PerformLeave * Fix SQLite bulkSelectEventStateKey * Update gomatrixserverlib * Fix bugs * Tidy a bit * Satisfy King Linter * Review comments * Review comments * Fix constants in SQLite event state keys table
This commit is contained in:
parent
df80e42408
commit
9b1b095b49
51
clientapi/routing/leaveroom.go
Normal file
51
clientapi/routing/leaveroom.go
Normal file
@ -0,0 +1,51 @@
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// Copyright 2017 Vector Creations Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package routing
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import (
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"net/http"
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"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/util"
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)
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func LeaveRoomByID(
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req *http.Request,
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device *authtypes.Device,
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rsAPI roomserverAPI.RoomserverInternalAPI,
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roomID string,
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) util.JSONResponse {
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// Prepare to ask the roomserver to perform the room join.
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leaveReq := roomserverAPI.PerformLeaveRequest{
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RoomID: roomID,
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UserID: device.UserID,
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}
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leaveRes := roomserverAPI.PerformLeaveResponse{}
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// Ask the roomserver to perform the leave.
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if err := rsAPI.PerformLeave(req.Context(), &leaveReq, &leaveRes); err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.Unknown(err.Error()),
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}
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}
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: struct{}{},
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}
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}
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@ -109,8 +109,18 @@ func Setup(
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return GetJoinedRooms(req, device, accountDB)
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}),
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).Methods(http.MethodGet, http.MethodOptions)
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r0mux.Handle("/rooms/{roomID}/{membership:(?:join|kick|ban|unban|leave|invite)}",
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r0mux.Handle("/rooms/{roomID}/leave",
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common.MakeAuthAPI("membership", authData, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
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vars, err := common.URLDecodeMapValues(mux.Vars(req))
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if err != nil {
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return util.ErrorResponse(err)
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}
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return LeaveRoomByID(
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req, device, rsAPI, vars["roomID"],
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)
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}),
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).Methods(http.MethodPost, http.MethodOptions)
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r0mux.Handle("/rooms/{roomID}/{membership:(?:join|kick|ban|unban|invite)}",
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common.MakeAuthAPI("membership", authData, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
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vars, err := common.URLDecodeMapValues(mux.Vars(req))
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if err != nil {
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@ -33,6 +33,15 @@ func MakeLeave(
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rsAPI api.RoomserverInternalAPI,
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roomID, userID string,
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) util.JSONResponse {
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verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
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verRes := api.QueryRoomVersionForRoomResponse{}
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if err := rsAPI.QueryRoomVersionForRoom(httpReq.Context(), &verReq, &verRes); err != nil {
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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JSON: jsonerror.InternalServerError(),
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}
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}
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_, domain, err := gomatrixserverlib.SplitID('@', userID)
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if err != nil {
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return util.JSONResponse{
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@ -87,7 +96,10 @@ func MakeLeave(
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: map[string]interface{}{"event": builder},
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JSON: map[string]interface{}{
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"room_version": verRes.RoomVersion,
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"event": builder,
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},
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}
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}
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@ -67,7 +67,9 @@ func (h *httpFederationSenderInternalAPI) PerformJoin(
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}
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type PerformLeaveRequest struct {
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RoomID string `json:"room_id"`
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RoomID string `json:"room_id"`
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UserID string `json:"user_id"`
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ServerNames types.ServerNames `json:"server_names"`
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}
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type PerformLeaveResponse struct {
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@ -153,5 +153,83 @@ func (r *FederationSenderInternalAPI) PerformLeave(
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request *api.PerformLeaveRequest,
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response *api.PerformLeaveResponse,
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) (err error) {
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return nil
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// Deduplicate the server names we were provided.
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util.Unique(request.ServerNames)
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// Try each server that we were provided until we land on one that
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// successfully completes the make-leave send-leave dance.
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for _, serverName := range request.ServerNames {
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// Try to perform a make_leave using the information supplied in the
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// request.
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respMakeLeave, err := r.federation.MakeLeave(
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ctx,
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serverName,
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request.RoomID,
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request.UserID,
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)
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if err != nil {
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// TODO: Check if the user was not allowed to leave the room.
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logrus.WithError(err).Warnf("r.federation.MakeLeave failed")
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continue
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}
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// Set all the fields to be what they should be, this should be a no-op
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// but it's possible that the remote server returned us something "odd"
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respMakeLeave.LeaveEvent.Type = gomatrixserverlib.MRoomMember
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respMakeLeave.LeaveEvent.Sender = request.UserID
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respMakeLeave.LeaveEvent.StateKey = &request.UserID
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respMakeLeave.LeaveEvent.RoomID = request.RoomID
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respMakeLeave.LeaveEvent.Redacts = ""
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if respMakeLeave.LeaveEvent.Content == nil {
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content := map[string]interface{}{
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"membership": "leave",
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}
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if err = respMakeLeave.LeaveEvent.SetContent(content); err != nil {
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logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.SetContent failed")
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continue
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}
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}
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if err = respMakeLeave.LeaveEvent.SetUnsigned(struct{}{}); err != nil {
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logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.SetUnsigned failed")
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continue
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}
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// Work out if we support the room version that has been supplied in
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// the make_leave response.
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if _, err = respMakeLeave.RoomVersion.EventFormat(); err != nil {
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return gomatrixserverlib.UnsupportedRoomVersionError{}
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}
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// Build the leave event.
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event, err := respMakeLeave.LeaveEvent.Build(
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time.Now(),
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r.cfg.Matrix.ServerName,
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r.cfg.Matrix.KeyID,
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r.cfg.Matrix.PrivateKey,
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respMakeLeave.RoomVersion,
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)
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if err != nil {
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logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.Build failed")
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continue
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}
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// Try to perform a send_leave using the newly built event.
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err = r.federation.SendLeave(
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ctx,
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serverName,
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event,
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)
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if err != nil {
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logrus.WithError(err).Warnf("r.federation.SendLeave failed")
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continue
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}
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return nil
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}
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// If we reach here then we didn't complete a leave for some reason.
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return fmt.Errorf(
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"Failed to leave room %q through %d server(s)",
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request.RoomID, len(request.ServerNames),
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)
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}
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2
go.mod
2
go.mod
@ -17,7 +17,7 @@ require (
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github.com/matrix-org/go-http-js-libp2p v0.0.0-20200318135427-31631a9ef51f
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github.com/matrix-org/go-sqlite3-js v0.0.0-20200325174927-327088cdef10
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github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200504142819-073764319c0f
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200504153202-7542702abea6
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github.com/matrix-org/naffka v0.0.0-20200422140631-181f1ee7401f
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github.com/matrix-org/util v0.0.0-20190711121626-527ce5ddefc7
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github.com/mattn/go-sqlite3 v2.0.2+incompatible
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4
go.sum
4
go.sum
@ -367,8 +367,8 @@ github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26 h1:Hr3zjRsq2bh
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github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26/go.mod h1:3fxX6gUjWyI/2Bt7J1OLhpCzOfO/bB3AiX0cJtEKud0=
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200124100636-0c2ec91d1df5 h1:kmRjpmFOenVpOaV/DRlo9p6z/IbOKlUC+hhKsAAh8Qg=
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200124100636-0c2ec91d1df5/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200504142819-073764319c0f h1:RiQ+YLu/S5Oi2Tm2QpBfO3bNxinhFtpZiar13kswLmY=
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200504142819-073764319c0f/go.mod h1:JsAzE1Ll3+gDWS9JSUHPJiiyAksvOOnGWF2nXdg4ZzU=
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200504153202-7542702abea6 h1:CnU+0kV1xzpvzEkFr1tX7c9BTWCTFOIlBPM1XD9I++c=
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github.com/matrix-org/gomatrixserverlib v0.0.0-20200504153202-7542702abea6/go.mod h1:JsAzE1Ll3+gDWS9JSUHPJiiyAksvOOnGWF2nXdg4ZzU=
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github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1 h1:osLoFdOy+ChQqVUn2PeTDETFftVkl4w9t/OW18g3lnk=
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github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1/go.mod h1:cXoYQIENbdWIQHt1SyCo6Bl3C3raHwJ0wgVrXHSqf+A=
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github.com/matrix-org/naffka v0.0.0-20200422140631-181f1ee7401f h1:pRz4VTiRCO4zPlEMc3ESdUOcW4PXHH4Kj+YDz1XyE+Y=
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@ -24,6 +24,12 @@ type RoomserverInternalAPI interface {
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res *PerformJoinResponse,
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) error
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PerformLeave(
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ctx context.Context,
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req *PerformLeaveRequest,
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res *PerformLeaveResponse,
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) error
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// Query the latest events and state for a room from the room server.
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QueryLatestEventsAndState(
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ctx context.Context,
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@ -59,6 +59,19 @@ func (r *RoomserverInternalAPI) SetupHTTP(servMux *http.ServeMux) {
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return util.JSONResponse{Code: http.StatusOK, JSON: &response}
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}),
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)
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servMux.Handle(api.RoomserverPerformLeavePath,
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common.MakeInternalAPI("performLeave", func(req *http.Request) util.JSONResponse {
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var request api.PerformLeaveRequest
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var response api.PerformLeaveResponse
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if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
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return util.MessageResponse(http.StatusBadRequest, err.Error())
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}
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if err := r.PerformLeave(req.Context(), &request, &response); err != nil {
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return util.ErrorResponse(err)
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}
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return util.JSONResponse{Code: http.StatusOK, JSON: &response}
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}),
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)
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servMux.Handle(
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api.RoomserverQueryLatestEventsAndStatePath,
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common.MakeInternalAPI("queryLatestEventsAndState", func(req *http.Request) util.JSONResponse {
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@ -116,7 +116,7 @@ func (r *RoomserverInternalAPI) performJoinRoomByID(
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if req.Content == nil {
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req.Content = map[string]interface{}{}
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}
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req.Content["membership"] = "join"
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req.Content["membership"] = gomatrixserverlib.Join
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if err = eb.SetContent(req.Content); err != nil {
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return fmt.Errorf("eb.SetContent: %w", err)
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}
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@ -145,7 +145,7 @@ func (r *RoomserverInternalAPI) performJoinRoomByID(
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for _, se := range buildRes.StateEvents {
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if membership, merr := se.Membership(); merr == nil {
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if se.StateKey() != nil && *se.StateKey() == *event.StateKey() {
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alreadyJoined = (membership == "join")
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alreadyJoined = (membership == gomatrixserverlib.Join)
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break
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}
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}
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@ -156,7 +156,7 @@ func (r *RoomserverInternalAPI) performJoinRoomByID(
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if !alreadyJoined {
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inputReq := api.InputRoomEventsRequest{
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InputRoomEvents: []api.InputRoomEvent{
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api.InputRoomEvent{
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{
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Kind: api.KindNew,
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Event: event.Headered(buildRes.RoomVersion),
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AuthEventIDs: event.AuthEventIDs(),
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208
roomserver/internal/perform_leave.go
Normal file
208
roomserver/internal/perform_leave.go
Normal file
@ -0,0 +1,208 @@
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package internal
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"github.com/matrix-org/dendrite/common"
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fsAPI "github.com/matrix-org/dendrite/federationsender/api"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/gomatrixserverlib"
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)
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// WriteOutputEvents implements OutputRoomEventWriter
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func (r *RoomserverInternalAPI) PerformLeave(
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ctx context.Context,
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req *api.PerformLeaveRequest,
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res *api.PerformLeaveResponse,
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) error {
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_, domain, err := gomatrixserverlib.SplitID('@', req.UserID)
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if err != nil {
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return fmt.Errorf("Supplied user ID %q in incorrect format", req.UserID)
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}
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if domain != r.Cfg.Matrix.ServerName {
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return fmt.Errorf("User %q does not belong to this homeserver", req.UserID)
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}
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if strings.HasPrefix(req.RoomID, "!") {
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return r.performLeaveRoomByID(ctx, req, res)
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}
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return fmt.Errorf("Room ID %q is invalid", req.RoomID)
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}
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func (r *RoomserverInternalAPI) performLeaveRoomByID(
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ctx context.Context,
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req *api.PerformLeaveRequest,
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res *api.PerformLeaveResponse, // nolint:unparam
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) error {
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// If there's an invite outstanding for the room then respond to
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// that.
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isInvitePending, senderUser, err := r.isInvitePending(ctx, req, res)
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if err == nil && isInvitePending {
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return r.performRejectInvite(ctx, req, res, senderUser)
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}
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// There's no invite pending, so first of all we want to find out
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// if the room exists and if the user is actually in it.
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latestReq := api.QueryLatestEventsAndStateRequest{
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RoomID: req.RoomID,
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StateToFetch: []gomatrixserverlib.StateKeyTuple{
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{
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EventType: gomatrixserverlib.MRoomMember,
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StateKey: req.UserID,
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},
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},
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}
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latestRes := api.QueryLatestEventsAndStateResponse{}
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if err = r.QueryLatestEventsAndState(ctx, &latestReq, &latestRes); err != nil {
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return err
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}
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if !latestRes.RoomExists {
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return fmt.Errorf("Room %q does not exist", req.RoomID)
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}
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// Now let's see if the user is in the room.
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if len(latestRes.StateEvents) == 0 {
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return fmt.Errorf("User %q is not a member of room %q", req.UserID, req.RoomID)
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}
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membership, err := latestRes.StateEvents[0].Membership()
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if err != nil {
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return fmt.Errorf("Error getting membership: %w", err)
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}
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if membership != gomatrixserverlib.Join {
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// TODO: should be able to handle "invite" in this case too, if
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// it's a case of kicking or banning or such
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return fmt.Errorf("User %q is not joined to the room (membership is %q)", req.UserID, membership)
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}
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// Prepare the template for the leave event.
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userID := req.UserID
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eb := gomatrixserverlib.EventBuilder{
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Type: gomatrixserverlib.MRoomMember,
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Sender: userID,
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StateKey: &userID,
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RoomID: req.RoomID,
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Redacts: "",
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}
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if err = eb.SetContent(map[string]interface{}{"membership": "leave"}); err != nil {
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return fmt.Errorf("eb.SetContent: %w", err)
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}
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if err = eb.SetUnsigned(struct{}{}); err != nil {
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return fmt.Errorf("eb.SetUnsigned: %w", err)
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}
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// We know that the user is in the room at this point so let's build
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// a leave event.
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// TODO: Check what happens if the room exists on the server
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// but everyone has since left. I suspect it does the wrong thing.
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buildRes := api.QueryLatestEventsAndStateResponse{}
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event, err := common.BuildEvent(
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ctx, // the request context
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&eb, // the template leave event
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r.Cfg, // the server configuration
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time.Now(), // the event timestamp to use
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r, // the roomserver API to use
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&buildRes, // the query response
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)
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if err != nil {
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return fmt.Errorf("common.BuildEvent: %w", err)
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}
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|
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// Give our leave event to the roomserver input stream. The
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// roomserver will process the membership change and notify
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// downstream automatically.
|
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inputReq := api.InputRoomEventsRequest{
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InputRoomEvents: []api.InputRoomEvent{
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{
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Kind: api.KindNew,
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Event: event.Headered(buildRes.RoomVersion),
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AuthEventIDs: event.AuthEventIDs(),
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SendAsServer: string(r.Cfg.Matrix.ServerName),
|
||||
},
|
||||
},
|
||||
}
|
||||
inputRes := api.InputRoomEventsResponse{}
|
||||
if err = r.InputRoomEvents(ctx, &inputReq, &inputRes); err != nil {
|
||||
return fmt.Errorf("r.InputRoomEvents: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *RoomserverInternalAPI) performRejectInvite(
|
||||
ctx context.Context,
|
||||
req *api.PerformLeaveRequest,
|
||||
res *api.PerformLeaveResponse, // nolint:unparam
|
||||
senderUser string,
|
||||
) error {
|
||||
_, domain, err := gomatrixserverlib.SplitID('@', senderUser)
|
||||
if err != nil {
|
||||
return fmt.Errorf("User ID %q invalid: %w", senderUser, err)
|
||||
}
|
||||
|
||||
// Ask the federation sender to perform a federated leave for us.
|
||||
leaveReq := fsAPI.PerformLeaveRequest{
|
||||
RoomID: req.RoomID,
|
||||
UserID: req.UserID,
|
||||
ServerNames: []gomatrixserverlib.ServerName{domain},
|
||||
}
|
||||
leaveRes := fsAPI.PerformLeaveResponse{}
|
||||
if err := r.fsAPI.PerformLeave(ctx, &leaveReq, &leaveRes); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// TODO: Withdraw the invite, so that the sync API etc are
|
||||
// notified that we rejected it.
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *RoomserverInternalAPI) isInvitePending(
|
||||
ctx context.Context,
|
||||
req *api.PerformLeaveRequest,
|
||||
res *api.PerformLeaveResponse, // nolint:unparam
|
||||
) (bool, string, error) {
|
||||
// Look up the room NID for the supplied room ID.
|
||||
roomNID, err := r.DB.RoomNID(ctx, req.RoomID)
|
||||
if err != nil {
|
||||
return false, "", fmt.Errorf("r.DB.RoomNID: %w", err)
|
||||
}
|
||||
|
||||
// Look up the state key NID for the supplied user ID.
|
||||
targetUserNIDs, err := r.DB.EventStateKeyNIDs(ctx, []string{req.UserID})
|
||||
if err != nil {
|
||||
return false, "", fmt.Errorf("r.DB.EventStateKeyNIDs: %w", err)
|
||||
}
|
||||
targetUserNID, targetUserFound := targetUserNIDs[req.UserID]
|
||||
if !targetUserFound {
|
||||
return false, "", fmt.Errorf("missing NID for user %q (%+v)", req.UserID, targetUserNIDs)
|
||||
}
|
||||
|
||||
// Let's see if we have an event active for the user in the room. If
|
||||
// we do then it will contain a server name that we can direct the
|
||||
// send_leave to.
|
||||
senderUserNIDs, err := r.DB.GetInvitesForUser(ctx, roomNID, targetUserNID)
|
||||
if err != nil {
|
||||
return false, "", fmt.Errorf("r.DB.GetInvitesForUser: %w", err)
|
||||
}
|
||||
if len(senderUserNIDs) == 0 {
|
||||
return false, "", nil
|
||||
}
|
||||
|
||||
// Look up the user ID from the NID.
|
||||
senderUsers, err := r.DB.EventStateKeys(ctx, senderUserNIDs)
|
||||
if err != nil {
|
||||
return false, "", fmt.Errorf("r.DB.EventStateKeys: %w", err)
|
||||
}
|
||||
if len(senderUsers) == 0 {
|
||||
return false, "", fmt.Errorf("no senderUsers")
|
||||
}
|
||||
|
||||
senderUser, senderUserFound := senderUsers[senderUserNIDs[0]]
|
||||
if !senderUserFound {
|
||||
return false, "", fmt.Errorf("missing user for NID %d (%+v)", senderUserNIDs[0], senderUsers)
|
||||
}
|
||||
|
||||
return true, senderUser, nil
|
||||
}
|
@ -47,14 +47,14 @@ const selectEventStateKeyNIDSQL = `
|
||||
|
||||
// Bulk lookup from string state key to numeric ID for that state key.
|
||||
// Takes an array of strings as the query parameter.
|
||||
const bulkSelectEventStateKeyNIDSQL = `
|
||||
const bulkSelectEventStateKeySQL = `
|
||||
SELECT event_state_key, event_state_key_nid FROM roomserver_event_state_keys
|
||||
WHERE event_state_key IN ($1)
|
||||
`
|
||||
|
||||
// Bulk lookup from numeric ID to string state key for that state key.
|
||||
// Takes an array of strings as the query parameter.
|
||||
const bulkSelectEventStateKeySQL = `
|
||||
const bulkSelectEventStateKeyNIDSQL = `
|
||||
SELECT event_state_key, event_state_key_nid FROM roomserver_event_state_keys
|
||||
WHERE event_state_key_nid IN ($1)
|
||||
`
|
||||
@ -110,7 +110,7 @@ func (s *eventStateKeyStatements) bulkSelectEventStateKeyNID(
|
||||
for k, v := range eventStateKeys {
|
||||
iEventStateKeys[k] = v
|
||||
}
|
||||
selectOrig := strings.Replace(bulkSelectEventStateKeyNIDSQL, "($1)", common.QueryVariadic(len(eventStateKeys)), 1)
|
||||
selectOrig := strings.Replace(bulkSelectEventStateKeySQL, "($1)", common.QueryVariadic(len(eventStateKeys)), 1)
|
||||
|
||||
rows, err := txn.QueryContext(ctx, selectOrig, iEventStateKeys...)
|
||||
if err != nil {
|
||||
|
Loading…
Reference in New Issue
Block a user