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Implement client single event retrieval (#693)
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commit
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127
clientapi/routing/getevent.go
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127
clientapi/routing/getevent.go
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// Copyright 2019 Alex Chen
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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/httputil"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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"github.com/matrix-org/dendrite/common/config"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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)
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type getEventRequest struct {
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req *http.Request
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device *authtypes.Device
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roomID string
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eventID string
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cfg config.Dendrite
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federation *gomatrixserverlib.FederationClient
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keyRing gomatrixserverlib.KeyRing
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requestedEvent gomatrixserverlib.Event
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}
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// GetEvent implements GET /_matrix/client/r0/rooms/{roomId}/event/{eventId}
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// https://matrix.org/docs/spec/client_server/r0.4.0.html#get-matrix-client-r0-rooms-roomid-event-eventid
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func GetEvent(
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req *http.Request,
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device *authtypes.Device,
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roomID string,
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eventID string,
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cfg config.Dendrite,
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queryAPI api.RoomserverQueryAPI,
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federation *gomatrixserverlib.FederationClient,
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keyRing gomatrixserverlib.KeyRing,
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) util.JSONResponse {
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eventsReq := api.QueryEventsByIDRequest{
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EventIDs: []string{eventID},
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}
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var eventsResp api.QueryEventsByIDResponse
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err := queryAPI.QueryEventsByID(req.Context(), &eventsReq, &eventsResp)
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if err != nil {
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return httputil.LogThenError(req, err)
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}
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if len(eventsResp.Events) == 0 {
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// Event not found locally
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return util.JSONResponse{
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Code: http.StatusNotFound,
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JSON: jsonerror.NotFound("The event was not found or you do not have permission to read this event"),
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}
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}
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requestedEvent := eventsResp.Events[0]
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r := getEventRequest{
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req: req,
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device: device,
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roomID: roomID,
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eventID: eventID,
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cfg: cfg,
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federation: federation,
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keyRing: keyRing,
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requestedEvent: requestedEvent,
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}
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stateReq := api.QueryStateAfterEventsRequest{
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RoomID: r.requestedEvent.RoomID(),
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PrevEventIDs: r.requestedEvent.PrevEventIDs(),
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StateToFetch: []gomatrixserverlib.StateKeyTuple{{
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EventType: gomatrixserverlib.MRoomMember,
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StateKey: device.UserID,
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}},
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}
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var stateResp api.QueryStateAfterEventsResponse
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if err := queryAPI.QueryStateAfterEvents(req.Context(), &stateReq, &stateResp); err != nil {
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return httputil.LogThenError(req, err)
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}
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if !stateResp.RoomExists {
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util.GetLogger(req.Context()).Errorf("Expected to find room for event %s but failed", r.requestedEvent.EventID())
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return jsonerror.InternalServerError()
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}
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if !stateResp.PrevEventsExist {
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// Missing some events locally; stateResp.StateEvents unavailable.
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return util.JSONResponse{
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Code: http.StatusNotFound,
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JSON: jsonerror.NotFound("The event was not found or you do not have permission to read this event"),
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}
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}
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for _, stateEvent := range stateResp.StateEvents {
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if stateEvent.StateKeyEquals(r.device.UserID) {
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membership, err := stateEvent.Membership()
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if err != nil {
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return httputil.LogThenError(req, err)
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}
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if membership == gomatrixserverlib.Join {
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: gomatrixserverlib.ToClientEvent(r.requestedEvent, gomatrixserverlib.FormatAll),
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}
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}
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}
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}
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return util.JSONResponse{
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Code: http.StatusNotFound,
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JSON: jsonerror.NotFound("The event was not found or you do not have permission to read this event"),
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}
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}
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@ -132,6 +132,15 @@ func Setup(
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nil, cfg, queryAPI, producer, transactionsCache)
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nil, cfg, queryAPI, producer, transactionsCache)
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}),
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}),
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).Methods(http.MethodPut, http.MethodOptions)
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).Methods(http.MethodPut, http.MethodOptions)
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r0mux.Handle("/rooms/{roomID}/event/{eventID}",
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common.MakeAuthAPI("rooms_get_event", 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 GetEvent(req, device, vars["roomID"], vars["eventID"], cfg, queryAPI, federation, keyRing)
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}),
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).Methods(http.MethodGet, http.MethodOptions)
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r0mux.Handle("/rooms/{roomID}/state/{eventType:[^/]+/?}",
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r0mux.Handle("/rooms/{roomID}/state/{eventType:[^/]+/?}",
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common.MakeAuthAPI("send_message", authData, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
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common.MakeAuthAPI("send_message", 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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vars, err := common.URLDecodeMapValues(mux.Vars(req))
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2
testfile
2
testfile
@ -168,3 +168,5 @@ Newly updated tags appear in an incremental v2 /sync
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Deleted tags appear in an incremental v2 /sync
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Deleted tags appear in an incremental v2 /sync
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/event/ on non world readable room does not work
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/event/ on non world readable room does not work
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Outbound federation can query profile data
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Outbound federation can query profile data
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/event/ on joined room works
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/event/ does not allow access to events before the user joined
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