mirror of
https://github.com/matrix-org/dendrite
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102 lines
3 KiB
Go
102 lines
3 KiB
Go
// Copyright 2020 New Vector 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/jsonerror"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/setup/config"
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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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// Peek implements the SS /peek API, handling inbound peeks
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func Peek(
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httpReq *http.Request,
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request *gomatrixserverlib.FederationRequest,
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cfg *config.FederationAPI,
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rsAPI api.FederationRoomserverAPI,
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roomID, peekID string,
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remoteVersions []gomatrixserverlib.RoomVersion,
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) util.JSONResponse {
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// TODO: check if we're just refreshing an existing peek by querying the federationapi
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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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// Check that the room that the peeking server is trying to peek is actually
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// one of the room versions that they listed in their supported ?ver= in
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// the peek URL.
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remoteSupportsVersion := false
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for _, v := range remoteVersions {
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if v == verRes.RoomVersion {
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remoteSupportsVersion = true
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break
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}
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}
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// If it isn't, stop trying to peek the room.
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if !remoteSupportsVersion {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.IncompatibleRoomVersion(verRes.RoomVersion),
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}
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}
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// TODO: Check history visibility
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// tell the peeking server to renew every hour
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renewalInterval := int64(60 * 60 * 1000 * 1000)
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var response api.PerformInboundPeekResponse
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err := rsAPI.PerformInboundPeek(
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httpReq.Context(),
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&api.PerformInboundPeekRequest{
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RoomID: roomID,
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PeekID: peekID,
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ServerName: request.Origin(),
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RenewalInterval: renewalInterval,
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},
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&response,
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)
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if err != nil {
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resErr := util.ErrorResponse(err)
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return resErr
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}
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if !response.RoomExists {
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return util.JSONResponse{Code: http.StatusNotFound, JSON: nil}
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}
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respPeek := gomatrixserverlib.RespPeek{
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StateEvents: gomatrixserverlib.NewEventJSONsFromHeaderedEvents(response.StateEvents),
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AuthEvents: gomatrixserverlib.NewEventJSONsFromHeaderedEvents(response.AuthChainEvents),
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RoomVersion: response.RoomVersion,
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LatestEvent: response.LatestEvent.Unwrap(),
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RenewalInterval: renewalInterval,
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}
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: respPeek,
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}
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}
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