mirror of
https://github.com/matrix-org/dendrite.git
synced 2026-01-01 11:13:12 -06:00
741 lines
25 KiB
Go
741 lines
25 KiB
Go
// 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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"encoding/json"
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"fmt"
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"net/http"
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"time"
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appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
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"github.com/matrix-org/dendrite/clientapi/httputil"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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"github.com/matrix-org/dendrite/internal/eventutil"
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"github.com/matrix-org/dendrite/roomserver/api"
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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/roomserver/version"
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"github.com/matrix-org/dendrite/setup/config"
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userapi "github.com/matrix-org/dendrite/userapi/api"
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accounts "github.com/matrix-org/dendrite/userapi/storage"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/sirupsen/logrus"
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)
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type upgradeRoomRequest struct {
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NewVersion string `json:"new_version"`
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}
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type upgradeRoomResponse struct {
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ReplacementRoom string `json:"replacement_room"`
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}
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func UpgradeRoom(
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req *http.Request, device *userapi.Device,
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cfg *config.ClientAPI,
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roomID string, accountDB accounts.Database,
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rsAPI roomserverAPI.RoomserverInternalAPI,
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asAPI appserviceAPI.AppServiceQueryAPI,
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) util.JSONResponse {
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evTime, err := httputil.ParseTSParam(req)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.InvalidArgumentValue(err.Error()),
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}
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}
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var r upgradeRoomRequest
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if rErr := httputil.UnmarshalJSONRequest(req, &r); rErr != nil {
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return *rErr
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}
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// Validate that the room version is supported
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if _, err := version.SupportedRoomVersion(gomatrixserverlib.RoomVersion(r.NewVersion)); err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.UnsupportedRoomVersion("This server does not support that room version"),
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}
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}
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// Return an immediate error if the room does not exist
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verReq := roomserverAPI.QueryRoomVersionForRoomRequest{RoomID: roomID}
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verRes := roomserverAPI.QueryRoomVersionForRoomResponse{}
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if err := rsAPI.QueryRoomVersionForRoom(req.Context(), &verReq, &verRes); err != nil {
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return util.JSONResponse{
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Code: http.StatusNotFound,
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JSON: jsonerror.NotFound("Room does not exist"),
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}
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}
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// 1. Check if the user is authorized to actually perform the upgrade (can send m.room.tombstone)
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if err := userIsAuthorized(req, device, roomID, rsAPI); err != nil {
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return *err
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}
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oldCreateEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomCreate,
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StateKey: "",
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})
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oldPowerLevelsEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomPowerLevels,
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StateKey: "",
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})
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oldJoinRulesEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomJoinRules,
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StateKey: "",
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})
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oldHistoryVisibilityEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomHistoryVisibility,
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StateKey: "",
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})
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oldNameEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomName,
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StateKey: "",
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})
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oldTopicEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomTopic,
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StateKey: "",
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})
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oldGuestAccessEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomGuestAccess,
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StateKey: "",
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})
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oldAvatarEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomAvatar,
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StateKey: "",
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})
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oldEncryptionEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomEncryption,
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StateKey: "",
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})
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oldServerAclEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: "m.room.server_acl",
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StateKey: "",
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})
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// Not in the spec, but needed for sytest compatablility
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oldRelatedGroupsEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: "m.room.related_groups",
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StateKey: "",
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})
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oldCanonicalAliasEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
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EventType: gomatrixserverlib.MRoomCanonicalAlias,
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StateKey: "",
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})
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// TODO (#267): Check room ID doesn't clash with an existing one, and we
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// probably shouldn't be using pseudo-random strings, maybe GUIDs?
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newRoomID := fmt.Sprintf("!%s:%s", util.RandomString(16), cfg.Matrix.ServerName)
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userID := device.UserID
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profile, err := appserviceAPI.RetrieveUserProfile(req.Context(), userID, asAPI, accountDB)
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("appserviceAPI.RetrieveUserProfile failed")
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return jsonerror.InternalServerError()
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}
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// Make the tombstone event
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tombstoneEvent, resErr := makeTombstoneEvent(req, device, cfg, evTime, roomID, newRoomID, accountDB, rsAPI)
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if err != nil {
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return *resErr
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}
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newCreateContent := map[string]interface{}{
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"creator": userID,
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"room_version": r.NewVersion, // TODO: change struct to single var?
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"predecessor": gomatrixserverlib.PreviousRoom{
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EventID: tombstoneEvent.EventID(),
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RoomID: roomID,
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},
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}
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oldCreateContent := unmarshal(oldCreateEvent.Content())
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if federate, ok := oldCreateContent["m.federate"].(bool); ok {
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newCreateContent["m.federate"] = federate
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}
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newCreateEvent := fledglingEvent{
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Type: gomatrixserverlib.MRoomCreate,
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Content: newCreateContent,
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}
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membershipEvent := fledglingEvent{
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Type: gomatrixserverlib.MRoomMember,
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StateKey: userID,
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Content: gomatrixserverlib.MemberContent{
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Membership: gomatrixserverlib.Join,
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DisplayName: profile.DisplayName,
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AvatarURL: profile.AvatarURL,
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},
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}
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powerLevelContent, err := oldPowerLevelsEvent.PowerLevels()
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("powerLevel event was not actually a power level event")
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return jsonerror.InternalServerError()
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}
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newPowerLevelsEvent := fledglingEvent{
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Type: gomatrixserverlib.MRoomPowerLevels,
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Content: powerLevelContent,
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}
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//create temporary power level event that elevates upgrading user's prvileges to create every copied state event
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tempPowerLevelsEvent := createTemporaryPowerLevels(powerLevelContent, userID)
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joinRulesContent, err := oldJoinRulesEvent.JoinRule()
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newJoinRulesEvent := fledglingEvent{
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Type: gomatrixserverlib.MRoomJoinRules,
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Content: map[string]interface{}{
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"join_rule": joinRulesContent,
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},
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}
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historyVisibilityContent, err := oldHistoryVisibilityEvent.HistoryVisibility()
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newHistoryVisibilityEvent := fledglingEvent{
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Type: gomatrixserverlib.MRoomHistoryVisibility,
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Content: map[string]interface{}{
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"history_visibility": historyVisibilityContent,
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},
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}
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var newNameEvent fledglingEvent
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var newTopicEvent fledglingEvent
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var newGuestAccessEvent fledglingEvent
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var newAvatarEvent fledglingEvent
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var newEncryptionEvent fledglingEvent
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var newServerACLEvent fledglingEvent
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var newRelatedGroupsEvent fledglingEvent
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var newCanonicalAliasEvent fledglingEvent
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if oldNameEvent != nil {
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newNameEvent = fledglingEvent{
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Type: gomatrixserverlib.MRoomName,
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Content: unmarshal(oldNameEvent.Content()),
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}
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}
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if oldTopicEvent != nil {
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newTopicEvent = fledglingEvent{
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Type: gomatrixserverlib.MRoomTopic,
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Content: unmarshal(oldTopicEvent.Content()),
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}
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}
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if oldGuestAccessEvent != nil {
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newGuestAccessEvent = fledglingEvent{
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Type: gomatrixserverlib.MRoomGuestAccess,
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Content: unmarshal(oldGuestAccessEvent.Content()),
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}
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}
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if oldAvatarEvent != nil {
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newAvatarEvent = fledglingEvent{
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Type: gomatrixserverlib.MRoomAvatar,
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Content: unmarshal(oldAvatarEvent.Content()),
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}
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}
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if oldEncryptionEvent != nil {
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newEncryptionEvent = fledglingEvent{
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Type: gomatrixserverlib.MRoomEncryption,
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Content: unmarshal(oldEncryptionEvent.Content()),
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}
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}
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if oldServerAclEvent != nil {
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newServerACLEvent = fledglingEvent{
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Type: "m.room.server_acl",
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Content: unmarshal(oldServerAclEvent.Content()),
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}
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}
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if oldRelatedGroupsEvent != nil {
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newRelatedGroupsEvent = fledglingEvent{
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Type: "m.room.related_groups",
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Content: unmarshal(oldRelatedGroupsEvent.Content()),
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}
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}
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if oldCanonicalAliasEvent != nil {
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newCanonicalAliasEvent = fledglingEvent{
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Type: gomatrixserverlib.MRoomCanonicalAlias,
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Content: unmarshal(oldCanonicalAliasEvent.Content()),
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}
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}
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// 3. Replicate transferable state events
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// send events into the room in order of:
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// 1- m.room.create
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// 2- m.room.power_levels (temporary, to allow the upgrading user to send everything)
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// 3- m.room.join_rules
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// 4- m.room.history_visibility
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// 5- m.room.guest_access
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// 6- m.room.name
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// 7- m.room.avatar
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// 8- m.room.topic
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// 9- m.room.encryption
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// 10-m.room.server_acl
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// 11-m.room.related_groups
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// 12-m.room.canonical_alias
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// 13-All ban events from the old room
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// 14-The original room power levels
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eventsToMake := []fledglingEvent{
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newCreateEvent, membershipEvent, tempPowerLevelsEvent, newJoinRulesEvent, newHistoryVisibilityEvent,
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}
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if oldGuestAccessEvent != nil {
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eventsToMake = append(eventsToMake, newGuestAccessEvent)
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} else { // Always create this with the default value to appease sytests
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eventsToMake = append(eventsToMake, fledglingEvent{
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Type: gomatrixserverlib.MRoomGuestAccess,
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Content: map[string]interface{}{"guest_access": "forbidden"},
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})
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}
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if oldNameEvent != nil {
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eventsToMake = append(eventsToMake, newNameEvent)
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}
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if oldAvatarEvent != nil {
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eventsToMake = append(eventsToMake, newAvatarEvent)
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}
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if oldTopicEvent != nil {
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eventsToMake = append(eventsToMake, newTopicEvent)
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}
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if oldEncryptionEvent != nil {
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eventsToMake = append(eventsToMake, newEncryptionEvent)
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}
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if oldServerAclEvent != nil {
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eventsToMake = append(eventsToMake, newServerACLEvent)
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}
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if oldRelatedGroupsEvent != nil {
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eventsToMake = append(eventsToMake, newRelatedGroupsEvent)
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}
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if oldCanonicalAliasEvent != nil {
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eventsToMake = append(eventsToMake, newCanonicalAliasEvent)
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}
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banEvents, err := getBanEvents(req, roomID, rsAPI)
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("QueryCurrentState failed")
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return jsonerror.InternalServerError()
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} else {
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eventsToMake = append(eventsToMake, banEvents...)
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}
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eventsToMake = append(eventsToMake, newPowerLevelsEvent)
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// 5. Send the tombstone event to the old room (must do this before we set the new canonical_alias)
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resErr = sendHeaderedEvent(req, cfg, rsAPI, tombstoneEvent)
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if resErr != nil {
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return *resErr
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}
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var builtEvents []*gomatrixserverlib.HeaderedEvent
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authEvents := gomatrixserverlib.NewAuthEvents(nil)
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for i, e := range eventsToMake {
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depth := i + 1 // depth starts at 1
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builder := gomatrixserverlib.EventBuilder{
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Sender: userID,
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RoomID: newRoomID,
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Type: e.Type,
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StateKey: &e.StateKey,
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Depth: int64(depth),
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}
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err = builder.SetContent(e.Content)
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("builder.SetContent failed")
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return jsonerror.InternalServerError()
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}
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if i > 0 {
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builder.PrevEvents = []gomatrixserverlib.EventReference{builtEvents[i-1].EventReference()}
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}
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var event *gomatrixserverlib.Event
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event, err = buildEvent(&builder, &authEvents, cfg, evTime, gomatrixserverlib.RoomVersion(r.NewVersion))
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("buildEvent failed")
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return jsonerror.InternalServerError()
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}
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if err = gomatrixserverlib.Allowed(event, &authEvents); err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("gomatrixserverlib.Allowed failed")
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return jsonerror.InternalServerError()
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}
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// Add the event to the list of auth events
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builtEvents = append(builtEvents, event.Headered(gomatrixserverlib.RoomVersion(r.NewVersion)))
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err = authEvents.AddEvent(event)
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("authEvents.AddEvent failed")
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return jsonerror.InternalServerError()
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}
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}
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inputs := make([]roomserverAPI.InputRoomEvent, 0, len(builtEvents))
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for _, event := range builtEvents {
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inputs = append(inputs, roomserverAPI.InputRoomEvent{
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Kind: roomserverAPI.KindNew,
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Event: event,
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Origin: cfg.Matrix.ServerName,
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SendAsServer: roomserverAPI.DoNotSendToOtherServers,
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})
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}
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if err = roomserverAPI.SendInputRoomEvents(req.Context(), rsAPI, inputs, false); err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("roomserverAPI.SendInputRoomEvents failed")
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return jsonerror.InternalServerError()
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}
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// check if the old room was published
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var pubQueryRes roomserverAPI.QueryPublishedRoomsResponse
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err = rsAPI.QueryPublishedRooms(req.Context(), &roomserverAPI.QueryPublishedRoomsRequest{
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RoomID: roomID,
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}, &pubQueryRes)
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("QueryPublishedRooms failed")
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return jsonerror.InternalServerError()
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}
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// if the old room is published (was public), publish the new room
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if len(pubQueryRes.RoomIDs) == 1 {
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publishNewRoom(req, rsAPI, roomID, newRoomID)
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}
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// Clear the old canonical alias event in the old room
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emptyCanonicalAliasEvent, resErr := makeHeaderedEvent(req, device, cfg, evTime, roomID, accountDB, rsAPI, fledglingEvent{
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Type: gomatrixserverlib.MRoomCanonicalAlias,
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Content: map[string]interface{}{},
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})
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if resErr != nil {
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if resErr.Code == http.StatusForbidden {
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util.GetLogger(req.Context()).WithField(logrus.ErrorKey, resErr).Warn("UpgradeRoom: Could not set empty canonical alias event in old room")
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} else {
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return *resErr
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}
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} else {
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if resErr = sendHeaderedEvent(req, cfg, rsAPI, emptyCanonicalAliasEvent); resErr != nil {
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return *resErr
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}
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}
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// 4. Move local aliases to the new room
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if resErr = moveLocalAliases(req, roomID, newRoomID, userID, rsAPI); resErr != nil {
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return *resErr
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}
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// 6. Restrict power levels in the old room
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if resErr = restrictOldRoomPowerLevels(req, device, cfg, evTime, roomID, accountDB, rsAPI, *powerLevelContent); resErr != nil {
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return *resErr
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}
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return util.JSONResponse{
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Code: 200,
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JSON: upgradeRoomResponse{
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ReplacementRoom: newRoomID,
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},
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}
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}
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|
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func publishNewRoom(
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req *http.Request,
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rsAPI roomserverAPI.RoomserverInternalAPI,
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oldRoomID, newRoomID string,
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) {
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// expose this room in the published room list
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var pubNewRoomRes roomserverAPI.PerformPublishResponse
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rsAPI.PerformPublish(req.Context(), &roomserverAPI.PerformPublishRequest{
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RoomID: newRoomID,
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Visibility: "public",
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}, &pubNewRoomRes)
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if pubNewRoomRes.Error != nil {
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// treat as non-fatal since the room is already made by this point
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util.GetLogger(req.Context()).WithError(pubNewRoomRes.Error).Error("failed to visibility:public")
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}
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var unpubOldRoomRes roomserverAPI.PerformPublishResponse
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// remove the old room from the published room list
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rsAPI.PerformPublish(req.Context(), &roomserverAPI.PerformPublishRequest{
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RoomID: oldRoomID,
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Visibility: "private",
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}, &unpubOldRoomRes)
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if unpubOldRoomRes.Error != nil {
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// treat as non-fatal since the room is already made by this point
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util.GetLogger(req.Context()).WithError(unpubOldRoomRes.Error).Error("failed to visibility:private")
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}
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}
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|
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func createTemporaryPowerLevels(powerLevelContent *gomatrixserverlib.PowerLevelContent, userID string) fledglingEvent {
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eventPowerLevels := powerLevelContent.Events
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stateDefaultPowerLevel := powerLevelContent.StateDefault
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neededPowerLevel := stateDefaultPowerLevel
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for _, powerLevel := range eventPowerLevels {
|
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if powerLevel > neededPowerLevel {
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|
neededPowerLevel = powerLevel
|
|
}
|
|
}
|
|
|
|
tempPowerLevelContent := &gomatrixserverlib.PowerLevelContent{}
|
|
*tempPowerLevelContent = *powerLevelContent
|
|
newUserPowerLevels := make(map[string]int64)
|
|
for key, value := range powerLevelContent.Users {
|
|
newUserPowerLevels[key] = value
|
|
}
|
|
tempPowerLevelContent.Users = newUserPowerLevels
|
|
|
|
if val, ok := tempPowerLevelContent.Users[userID]; ok {
|
|
if val < neededPowerLevel {
|
|
tempPowerLevelContent.Users[userID] = neededPowerLevel
|
|
}
|
|
} else {
|
|
if tempPowerLevelContent.UsersDefault < val {
|
|
tempPowerLevelContent.UsersDefault = neededPowerLevel
|
|
}
|
|
}
|
|
tempPowerLevelsEvent := fledglingEvent{
|
|
Type: gomatrixserverlib.MRoomPowerLevels,
|
|
Content: tempPowerLevelContent,
|
|
}
|
|
return tempPowerLevelsEvent
|
|
}
|
|
|
|
func getBanEvents(req *http.Request, roomID string, rsAPI roomserverAPI.RoomserverInternalAPI) ([]fledglingEvent, error) {
|
|
var err error
|
|
banEvents := []fledglingEvent{}
|
|
|
|
roomMemberReq := roomserverAPI.QueryCurrentStateRequest{RoomID: roomID, AllowWildcards: true, StateTuples: []gomatrixserverlib.StateKeyTuple{
|
|
{EventType: gomatrixserverlib.MRoomMember, StateKey: "*"},
|
|
}}
|
|
roomMemberRes := roomserverAPI.QueryCurrentStateResponse{}
|
|
if err = rsAPI.QueryCurrentState(req.Context(), &roomMemberReq, &roomMemberRes); err != nil {
|
|
return nil, err
|
|
}
|
|
for _, event := range roomMemberRes.StateEvents {
|
|
if event == nil {
|
|
continue
|
|
}
|
|
memberContent, err := gomatrixserverlib.NewMemberContentFromEvent(event.Event)
|
|
if err != nil || memberContent.Membership != gomatrixserverlib.Ban {
|
|
continue
|
|
}
|
|
banEvents = append(banEvents, fledglingEvent{Type: gomatrixserverlib.MRoomMember, StateKey: *event.StateKey(), Content: memberContent})
|
|
}
|
|
return banEvents, nil
|
|
}
|
|
|
|
func moveLocalAliases(req *http.Request,
|
|
roomID, newRoomID, userID string,
|
|
rsAPI roomserverAPI.RoomserverInternalAPI) *util.JSONResponse {
|
|
var err error
|
|
internalServerError := jsonerror.InternalServerError()
|
|
|
|
aliasReq := roomserverAPI.GetAliasesForRoomIDRequest{RoomID: roomID}
|
|
aliasRes := roomserverAPI.GetAliasesForRoomIDResponse{}
|
|
if err := rsAPI.GetAliasesForRoomID(req.Context(), &aliasReq, &aliasRes); err != nil {
|
|
return &internalServerError
|
|
}
|
|
|
|
for _, alias := range aliasRes.Aliases {
|
|
removeAliasReq := roomserverAPI.RemoveRoomAliasRequest{UserID: userID, Alias: alias}
|
|
removeAliasRes := roomserverAPI.RemoveRoomAliasResponse{}
|
|
if err = rsAPI.RemoveRoomAlias(req.Context(), &removeAliasReq, &removeAliasRes); err != nil {
|
|
util.GetLogger(req.Context()).WithError(err).Error("roomserverAPI.RemoveRoomAlias failed")
|
|
return &internalServerError
|
|
}
|
|
|
|
setAliasReq := roomserverAPI.SetRoomAliasRequest{UserID: userID, Alias: alias, RoomID: newRoomID}
|
|
setAliasRes := roomserverAPI.SetRoomAliasResponse{}
|
|
if err = rsAPI.SetRoomAlias(req.Context(), &setAliasReq, &setAliasRes); err != nil {
|
|
util.GetLogger(req.Context()).WithError(err).Error("roomserverAPI.SetRoomAlias failed")
|
|
return &internalServerError
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restrictOldRoomPowerLevels(req *http.Request, device *userapi.Device,
|
|
cfg *config.ClientAPI, evTime time.Time,
|
|
roomID string, accountDB accounts.Database,
|
|
rsAPI roomserverAPI.RoomserverInternalAPI, powerLevelContent gomatrixserverlib.PowerLevelContent) *util.JSONResponse {
|
|
restrictedPowerLevelContent := &gomatrixserverlib.PowerLevelContent{}
|
|
*restrictedPowerLevelContent = powerLevelContent
|
|
|
|
restrictedDefaultPowerLevel := int64(50)
|
|
if restrictedPowerLevelContent.UsersDefault+1 > restrictedDefaultPowerLevel {
|
|
restrictedDefaultPowerLevel = restrictedPowerLevelContent.UsersDefault + 1
|
|
}
|
|
restrictedPowerLevelContent.EventsDefault = restrictedDefaultPowerLevel
|
|
restrictedPowerLevelContent.Invite = restrictedDefaultPowerLevel
|
|
|
|
restrictedPowerLevelsHeadered, resErr := makeHeaderedEvent(req, device, cfg, evTime, roomID, accountDB, rsAPI, fledglingEvent{
|
|
Type: gomatrixserverlib.MRoomPowerLevels,
|
|
Content: restrictedPowerLevelContent,
|
|
})
|
|
if resErr != nil {
|
|
if resErr.Code == http.StatusForbidden {
|
|
util.GetLogger(req.Context()).WithField(logrus.ErrorKey, resErr).Warn("UpgradeRoom: Could not restrict power levels in old room")
|
|
} else {
|
|
return resErr
|
|
}
|
|
} else {
|
|
if resErr = sendHeaderedEvent(req, cfg, rsAPI, restrictedPowerLevelsHeadered); resErr != nil {
|
|
return resErr
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func userIsAuthorized(
|
|
req *http.Request, device *userapi.Device,
|
|
roomID string,
|
|
rsAPI roomserverAPI.RoomserverInternalAPI,
|
|
) *util.JSONResponse {
|
|
plEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
|
|
EventType: gomatrixserverlib.MRoomPowerLevels,
|
|
StateKey: "",
|
|
})
|
|
if plEvent == nil {
|
|
return &util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: jsonerror.Forbidden("You don't have permission to upgrade this room, no power_levels event in this room."),
|
|
}
|
|
}
|
|
|
|
pl, err := plEvent.PowerLevels()
|
|
if err != nil {
|
|
return &util.JSONResponse{
|
|
Code: 403,
|
|
JSON: jsonerror.Forbidden("The power_levels event for this room is malformed so auth checks cannot be performed."),
|
|
}
|
|
}
|
|
|
|
// Check for power level required to send tombstone event (marks the curren room as obsolete),
|
|
// if not found, use the StateDefault power level
|
|
plToUpgrade, ok := pl.Events["m.room.tombstone"]
|
|
if !ok {
|
|
plToUpgrade = pl.StateDefault
|
|
}
|
|
|
|
allowedToUpgrade := pl.UserLevel(device.UserID) >= plToUpgrade
|
|
if !allowedToUpgrade {
|
|
return &util.JSONResponse{
|
|
Code: 403,
|
|
JSON: jsonerror.Forbidden("You don't have permission to upgrade the room, power level too low."),
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func makeHeaderedEvent(req *http.Request, device *userapi.Device,
|
|
cfg *config.ClientAPI, evTime time.Time,
|
|
roomID string, accountDB accounts.Database,
|
|
rsAPI roomserverAPI.RoomserverInternalAPI, event fledglingEvent) (*gomatrixserverlib.HeaderedEvent, *util.JSONResponse) {
|
|
|
|
builder := gomatrixserverlib.EventBuilder{
|
|
Sender: device.UserID,
|
|
RoomID: roomID,
|
|
Type: event.Type,
|
|
StateKey: &event.StateKey,
|
|
}
|
|
err := builder.SetContent(event.Content)
|
|
if err != nil {
|
|
util.GetLogger(req.Context()).WithError(err).Error("builder.SetContent failed")
|
|
resErr := jsonerror.InternalServerError()
|
|
return nil, &resErr
|
|
}
|
|
var queryRes api.QueryLatestEventsAndStateResponse
|
|
headeredEvent, err := eventutil.QueryAndBuildEvent(req.Context(), &builder, cfg.Matrix, evTime, rsAPI, &queryRes)
|
|
if err == eventutil.ErrRoomNoExists {
|
|
return nil, &util.JSONResponse{
|
|
Code: http.StatusNotFound,
|
|
JSON: jsonerror.NotFound("Room does not exist"),
|
|
}
|
|
} else if e, ok := err.(gomatrixserverlib.BadJSONError); ok {
|
|
return nil, &util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: jsonerror.BadJSON(e.Error()),
|
|
}
|
|
} else if e, ok := err.(gomatrixserverlib.EventValidationError); ok {
|
|
if e.Code == gomatrixserverlib.EventValidationTooLarge {
|
|
return nil, &util.JSONResponse{
|
|
Code: http.StatusRequestEntityTooLarge,
|
|
JSON: jsonerror.BadJSON(e.Error()),
|
|
}
|
|
}
|
|
return nil, &util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: jsonerror.BadJSON(e.Error()),
|
|
}
|
|
} else if err != nil {
|
|
util.GetLogger(req.Context()).WithError(err).Error("eventutil.BuildEvent failed")
|
|
resErr := jsonerror.InternalServerError()
|
|
return nil, &resErr
|
|
}
|
|
|
|
// check to see if this user can perform this operation
|
|
stateEvents := make([]*gomatrixserverlib.Event, len(queryRes.StateEvents))
|
|
for i := range queryRes.StateEvents {
|
|
stateEvents[i] = queryRes.StateEvents[i].Event
|
|
}
|
|
provider := gomatrixserverlib.NewAuthEvents(stateEvents)
|
|
if err = gomatrixserverlib.Allowed(headeredEvent.Event, &provider); err != nil {
|
|
return nil, &util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: jsonerror.Forbidden(err.Error()), // TODO: Is this error string comprehensible to the client?
|
|
}
|
|
}
|
|
|
|
return headeredEvent, nil
|
|
|
|
}
|
|
|
|
func makeTombstoneEvent(
|
|
req *http.Request, device *userapi.Device,
|
|
cfg *config.ClientAPI, evTime time.Time,
|
|
roomID, newRoomID string, accountDB accounts.Database,
|
|
rsAPI roomserverAPI.RoomserverInternalAPI,
|
|
) (*gomatrixserverlib.HeaderedEvent, *util.JSONResponse) {
|
|
content := map[string]interface{}{
|
|
"body": "This room has been replaced",
|
|
"replacement_room": newRoomID,
|
|
}
|
|
event := fledglingEvent{
|
|
Type: "m.room.tombstone",
|
|
Content: content,
|
|
}
|
|
return makeHeaderedEvent(req, device, cfg, evTime, roomID, accountDB, rsAPI, event)
|
|
|
|
}
|
|
|
|
func sendHeaderedEvent(
|
|
req *http.Request,
|
|
cfg *config.ClientAPI,
|
|
rsAPI roomserverAPI.RoomserverInternalAPI,
|
|
headeredEvent *gomatrixserverlib.HeaderedEvent,
|
|
) *util.JSONResponse {
|
|
var inputs []roomserverAPI.InputRoomEvent
|
|
inputs = append(inputs, roomserverAPI.InputRoomEvent{
|
|
Kind: roomserverAPI.KindNew,
|
|
Event: headeredEvent,
|
|
Origin: cfg.Matrix.ServerName,
|
|
SendAsServer: roomserverAPI.DoNotSendToOtherServers,
|
|
})
|
|
if err := roomserverAPI.SendInputRoomEvents(req.Context(), rsAPI, inputs, false); err != nil {
|
|
util.GetLogger(req.Context()).WithError(err).Error("roomserverAPI.SendInputRoomEvents failed")
|
|
resErr := jsonerror.InternalServerError()
|
|
return &resErr
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func unmarshal(in []byte) map[string]interface{} {
|
|
ret := make(map[string]interface{})
|
|
err := json.Unmarshal(in, &ret)
|
|
if err != nil {
|
|
logrus.Fatalf("One of our own state events is not valid JSON: %v", err)
|
|
}
|
|
return ret
|
|
}
|