108 lines
3.5 KiB
Go
108 lines
3.5 KiB
Go
// Copyright 2017 Vector Creations 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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"encoding/json"
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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/clientapi/producers"
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"github.com/matrix-org/dendrite/common/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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// Invite implements /_matrix/federation/v1/invite/{roomID}/{eventID}
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func Invite(
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httpReq *http.Request,
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request *gomatrixserverlib.FederationRequest,
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roomID string,
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eventID string,
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cfg *config.Dendrite,
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producer *producers.RoomserverProducer,
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keys gomatrixserverlib.KeyRing,
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) util.JSONResponse {
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// Decode the event JSON from the request.
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var event gomatrixserverlib.Event
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if err := json.Unmarshal(request.Content(), &event); err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.NotJSON("The request body could not be decoded into valid JSON. " + err.Error()),
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}
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}
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// Check that the room ID is correct.
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if event.RoomID() != roomID {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.BadJSON("The room ID in the request path must match the room ID in the invite event JSON"),
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}
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}
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// Check that the event ID is correct.
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if event.EventID() != eventID {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.BadJSON("The event ID in the request path must match the event ID in the invite event JSON"),
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}
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}
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// Check that the event is from the server sending the request.
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if event.Origin() != request.Origin() {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: jsonerror.Forbidden("The invite must be sent by the server it originated on"),
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}
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}
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// Check that the event is signed by the server sending the request.
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verifyRequests := []gomatrixserverlib.VerifyJSONRequest{{
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ServerName: event.Origin(),
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Message: event.Redact().JSON(),
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AtTS: event.OriginServerTS(),
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}}
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verifyResults, err := keys.VerifyJSONs(httpReq.Context(), verifyRequests)
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if err != nil {
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util.GetLogger(httpReq.Context()).WithError(err).Error("keys.VerifyJSONs failed")
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return jsonerror.InternalServerError()
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}
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if verifyResults[0].Error != nil {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: jsonerror.Forbidden("The invite must be signed by the server it originated on"),
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}
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}
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// Sign the event so that other servers will know that we have received the invite.
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signedEvent := event.Sign(
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string(cfg.Matrix.ServerName), cfg.Matrix.KeyID, cfg.Matrix.PrivateKey,
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)
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// Add the invite event to the roomserver.
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if err = producer.SendInvite(httpReq.Context(), signedEvent); err != nil {
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util.GetLogger(httpReq.Context()).WithError(err).Error("producer.SendInvite failed")
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return jsonerror.InternalServerError()
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}
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// Return the signed event to the originating server, it should then tell
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// the other servers in the room that we have been invited.
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: gomatrixserverlib.RespInvite{Event: signedEvent},
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}
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}
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