117 lines
3.2 KiB
Go
117 lines
3.2 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 perform
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import (
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"context"
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"fmt"
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"strings"
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fsAPI "github.com/matrix-org/dendrite/federationapi/api"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/roomserver/internal/input"
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"github.com/matrix-org/dendrite/setup/config"
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"github.com/matrix-org/gomatrixserverlib"
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)
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type Unpeeker struct {
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ServerName gomatrixserverlib.ServerName
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Cfg *config.RoomServer
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FSAPI fsAPI.RoomserverFederationAPI
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Inputer *input.Inputer
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}
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// PerformPeek handles peeking into matrix rooms, including over federation by talking to the federationapi.
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func (r *Unpeeker) PerformUnpeek(
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ctx context.Context,
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req *api.PerformUnpeekRequest,
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res *api.PerformUnpeekResponse,
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) error {
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if err := r.performUnpeek(ctx, req); err != nil {
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perr, ok := err.(*api.PerformError)
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if ok {
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res.Error = perr
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} else {
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res.Error = &api.PerformError{
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Msg: err.Error(),
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}
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}
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}
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return nil
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}
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func (r *Unpeeker) performUnpeek(
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ctx context.Context,
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req *api.PerformUnpeekRequest,
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) error {
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// FIXME: there's way too much duplication with performJoin
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_, domain, err := gomatrixserverlib.SplitID('@', req.UserID)
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if err != nil {
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return &api.PerformError{
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Code: api.PerformErrorBadRequest,
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Msg: fmt.Sprintf("Supplied user ID %q in incorrect format", req.UserID),
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}
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}
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if !r.Cfg.Matrix.IsLocalServerName(domain) {
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return &api.PerformError{
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Code: api.PerformErrorBadRequest,
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Msg: fmt.Sprintf("User %q does not belong to this homeserver", req.UserID),
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}
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}
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if strings.HasPrefix(req.RoomID, "!") {
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return r.performUnpeekRoomByID(ctx, req)
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}
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return &api.PerformError{
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Code: api.PerformErrorBadRequest,
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Msg: fmt.Sprintf("Room ID %q is invalid", req.RoomID),
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}
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}
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func (r *Unpeeker) performUnpeekRoomByID(
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_ context.Context,
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req *api.PerformUnpeekRequest,
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) (err error) {
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// Get the domain part of the room ID.
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_, _, err = gomatrixserverlib.SplitID('!', req.RoomID)
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if err != nil {
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return &api.PerformError{
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Code: api.PerformErrorBadRequest,
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Msg: fmt.Sprintf("Room ID %q is invalid: %s", req.RoomID, err),
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}
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}
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// TODO: handle federated peeks
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err = r.Inputer.OutputProducer.ProduceRoomEvents(req.RoomID, []api.OutputEvent{
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{
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Type: api.OutputTypeRetirePeek,
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RetirePeek: &api.OutputRetirePeek{
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RoomID: req.RoomID,
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UserID: req.UserID,
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DeviceID: req.DeviceID,
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},
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},
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})
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if err != nil {
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return
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}
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// By this point, if req.RoomIDOrAlias contained an alias, then
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// it will have been overwritten with a room ID by performPeekRoomByAlias.
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// We should now include this in the response so that the CS API can
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// return the right room ID.
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return nil
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}
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