103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
// Copyright 2018 New Vector Ltd
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package routing
|
|
|
|
import (
|
|
"net/http"
|
|
"strconv"
|
|
|
|
"github.com/matrix-org/dendrite/clientapi/httputil"
|
|
"github.com/matrix-org/dendrite/clientapi/jsonerror"
|
|
"github.com/matrix-org/dendrite/common/config"
|
|
"github.com/matrix-org/dendrite/federationapi/types"
|
|
"github.com/matrix-org/dendrite/roomserver/api"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
"github.com/matrix-org/util"
|
|
)
|
|
|
|
// Backfill implements the /backfill federation endpoint.
|
|
// https://matrix.org/docs/spec/server_server/unstable.html#get-matrix-federation-v1-backfill-roomid
|
|
func Backfill(
|
|
httpReq *http.Request,
|
|
request *gomatrixserverlib.FederationRequest,
|
|
query api.RoomserverQueryAPI,
|
|
roomID string,
|
|
cfg config.Dendrite,
|
|
) util.JSONResponse {
|
|
var res api.QueryBackfillResponse
|
|
var eIDs []string
|
|
var limit string
|
|
var exists bool
|
|
var err error
|
|
|
|
// Check the room ID's format.
|
|
if _, _, err = gomatrixserverlib.SplitID('!', roomID); err != nil {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: jsonerror.MissingArgument("Bad room ID: " + err.Error()),
|
|
}
|
|
}
|
|
|
|
// Check if all of the required parameters are there.
|
|
eIDs, exists = httpReq.URL.Query()["v"]
|
|
if !exists {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: jsonerror.MissingArgument("v is missing"),
|
|
}
|
|
}
|
|
limit = httpReq.URL.Query().Get("limit")
|
|
if len(limit) == 0 {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: jsonerror.MissingArgument("limit is missing"),
|
|
}
|
|
}
|
|
|
|
// Populate the request.
|
|
req := api.QueryBackfillRequest{
|
|
EarliestEventsIDs: eIDs,
|
|
ServerName: request.Origin(),
|
|
}
|
|
if req.Limit, err = strconv.Atoi(limit); err != nil {
|
|
return httputil.LogThenError(httpReq, err)
|
|
}
|
|
|
|
// Query the roomserver.
|
|
if err = query.QueryBackfill(httpReq.Context(), &req, &res); err != nil {
|
|
return httputil.LogThenError(httpReq, err)
|
|
}
|
|
|
|
// Filter any event that's not from the requested room out.
|
|
evs := make([]gomatrixserverlib.Event, 0)
|
|
|
|
var ev gomatrixserverlib.Event
|
|
for _, ev = range res.Events {
|
|
if ev.RoomID() == roomID {
|
|
evs = append(evs, ev)
|
|
}
|
|
}
|
|
|
|
txn := types.NewTransaction()
|
|
txn.Origin = cfg.Matrix.ServerName
|
|
txn.PDUs = evs
|
|
|
|
// Send the events to the client.
|
|
return util.JSONResponse{
|
|
Code: http.StatusOK,
|
|
JSON: txn,
|
|
}
|
|
}
|