mirror of
https://github.com/matrix-org/dendrite.git
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80 lines
2.6 KiB
Go
80 lines
2.6 KiB
Go
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// 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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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/userapi/api"
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"github.com/matrix-org/dendrite/userapi/storage/accounts"
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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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func PeekRoomByIDOrAlias(
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req *http.Request,
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device *api.Device,
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rsAPI roomserverAPI.RoomserverInternalAPI,
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accountDB accounts.Database,
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roomIDOrAlias string,
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) util.JSONResponse {
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// if this is a remote roomIDOrAlias, we have to ask the roomserver (or federation sender?) to
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// to call /peek and /state on the remote server.
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// TODO: in future we could skip this if we know we're already participating in the room,
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// but this is fiddly in case we stop participating in the room.
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// then we create a local peek.
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peekReq := roomserverAPI.PerformPeekRequest{
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RoomIDOrAlias: roomIDOrAlias,
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UserID: device.UserID,
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DeviceID: device.ID,
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}
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peekRes := roomserverAPI.PerformPeekResponse{}
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// Check to see if any ?server_name= query parameters were
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// given in the request.
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if serverNames, ok := req.URL.Query()["server_name"]; ok {
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for _, serverName := range serverNames {
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peekReq.ServerNames = append(
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peekReq.ServerNames,
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gomatrixserverlib.ServerName(serverName),
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)
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}
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}
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// Ask the roomserver to perform the peek.
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rsAPI.PerformPeek(req.Context(), &peekReq, &peekRes)
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if peekRes.Error != nil {
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return peekRes.Error.JSONResponse()
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}
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// if this user is already joined to the room, we let them peek anyway
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// (given they might be about to part the room, and it makes things less fiddly)
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// Peeking stops if none of the devices who started peeking have been
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// /syncing for a while, or if everyone who was peeking calls /leave
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// (or /unpeek with a server_name param? or DELETE /peek?)
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// on the peeked room.
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return util.JSONResponse{
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Code: http.StatusOK,
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// TODO: Put the response struct somewhere internal.
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JSON: struct {
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RoomID string `json:"room_id"`
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}{peekRes.RoomID},
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}
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}
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