mirror of
https://github.com/1f349/dendrite.git
synced 2024-11-25 21:21:35 +00:00
384 lines
12 KiB
Go
384 lines
12 KiB
Go
// 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 (
|
|
"fmt"
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/matrix-org/dendrite/internal/eventutil"
|
|
"github.com/matrix-org/dendrite/roomserver/api"
|
|
"github.com/matrix-org/dendrite/roomserver/types"
|
|
"github.com/matrix-org/dendrite/setup/config"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
"github.com/matrix-org/gomatrixserverlib/fclient"
|
|
"github.com/matrix-org/gomatrixserverlib/spec"
|
|
"github.com/matrix-org/util"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
// MakeLeave implements the /make_leave API
|
|
func MakeLeave(
|
|
httpReq *http.Request,
|
|
request *fclient.FederationRequest,
|
|
cfg *config.FederationAPI,
|
|
rsAPI api.FederationRoomserverAPI,
|
|
roomID spec.RoomID, userID spec.UserID,
|
|
) util.JSONResponse {
|
|
roomVersion, err := rsAPI.QueryRoomVersionForRoom(httpReq.Context(), roomID.String())
|
|
if err != nil {
|
|
util.GetLogger(httpReq.Context()).WithError(err).Error("failed obtaining room version")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
|
|
req := api.QueryServerJoinedToRoomRequest{
|
|
ServerName: request.Destination(),
|
|
RoomID: roomID.String(),
|
|
}
|
|
res := api.QueryServerJoinedToRoomResponse{}
|
|
if err = rsAPI.QueryServerJoinedToRoom(httpReq.Context(), &req, &res); err != nil {
|
|
util.GetLogger(httpReq.Context()).WithError(err).Error("rsAPI.QueryServerJoinedToRoom failed")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
|
|
createLeaveTemplate := func(proto *gomatrixserverlib.ProtoEvent) (gomatrixserverlib.PDU, []gomatrixserverlib.PDU, error) {
|
|
identity, signErr := cfg.Matrix.SigningIdentityFor(request.Destination())
|
|
if signErr != nil {
|
|
util.GetLogger(httpReq.Context()).WithError(signErr).Errorf("obtaining signing identity for %s failed", request.Destination())
|
|
return nil, nil, spec.NotFound(fmt.Sprintf("Server name %q does not exist", request.Destination()))
|
|
}
|
|
|
|
queryRes := api.QueryLatestEventsAndStateResponse{}
|
|
event, buildErr := eventutil.QueryAndBuildEvent(httpReq.Context(), proto, identity, time.Now(), rsAPI, &queryRes)
|
|
switch e := buildErr.(type) {
|
|
case nil:
|
|
case eventutil.ErrRoomNoExists:
|
|
util.GetLogger(httpReq.Context()).WithError(buildErr).Error("eventutil.BuildEvent failed")
|
|
return nil, nil, spec.NotFound("Room does not exist")
|
|
case gomatrixserverlib.BadJSONError:
|
|
util.GetLogger(httpReq.Context()).WithError(buildErr).Error("eventutil.BuildEvent failed")
|
|
return nil, nil, spec.BadJSON(e.Error())
|
|
default:
|
|
util.GetLogger(httpReq.Context()).WithError(buildErr).Error("eventutil.BuildEvent failed")
|
|
return nil, nil, spec.InternalServerError{}
|
|
}
|
|
|
|
stateEvents := make([]gomatrixserverlib.PDU, len(queryRes.StateEvents))
|
|
for i, stateEvent := range queryRes.StateEvents {
|
|
stateEvents[i] = stateEvent.PDU
|
|
}
|
|
return event, stateEvents, nil
|
|
}
|
|
|
|
senderID, err := rsAPI.QuerySenderIDForUser(httpReq.Context(), roomID, userID)
|
|
if err != nil {
|
|
util.GetLogger(httpReq.Context()).WithError(err).Error("rsAPI.QuerySenderIDForUser failed")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
|
|
input := gomatrixserverlib.HandleMakeLeaveInput{
|
|
UserID: userID,
|
|
SenderID: senderID,
|
|
RoomID: roomID,
|
|
RoomVersion: roomVersion,
|
|
RequestOrigin: request.Origin(),
|
|
LocalServerName: cfg.Matrix.ServerName,
|
|
LocalServerInRoom: res.RoomExists && res.IsInRoom,
|
|
BuildEventTemplate: createLeaveTemplate,
|
|
UserIDQuerier: func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
|
|
return rsAPI.QueryUserIDForSender(httpReq.Context(), roomID, senderID)
|
|
},
|
|
}
|
|
|
|
response, internalErr := gomatrixserverlib.HandleMakeLeave(input)
|
|
switch e := internalErr.(type) {
|
|
case nil:
|
|
case spec.InternalServerError:
|
|
util.GetLogger(httpReq.Context()).WithError(internalErr).Error("failed to handle make_leave request")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
case spec.MatrixError:
|
|
util.GetLogger(httpReq.Context()).WithError(internalErr).Error("failed to handle make_leave request")
|
|
code := http.StatusInternalServerError
|
|
switch e.ErrCode {
|
|
case spec.ErrorForbidden:
|
|
code = http.StatusForbidden
|
|
case spec.ErrorNotFound:
|
|
code = http.StatusNotFound
|
|
case spec.ErrorBadJSON:
|
|
code = http.StatusBadRequest
|
|
}
|
|
|
|
return util.JSONResponse{
|
|
Code: code,
|
|
JSON: e,
|
|
}
|
|
default:
|
|
util.GetLogger(httpReq.Context()).WithError(internalErr).Error("failed to handle make_leave request")
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.Unknown("unknown error"),
|
|
}
|
|
}
|
|
|
|
if response == nil {
|
|
util.GetLogger(httpReq.Context()).Error("gmsl.HandleMakeLeave returned invalid response")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
|
|
return util.JSONResponse{
|
|
Code: http.StatusOK,
|
|
JSON: map[string]interface{}{
|
|
"event": response.LeaveTemplateEvent,
|
|
"room_version": response.RoomVersion,
|
|
},
|
|
}
|
|
}
|
|
|
|
// SendLeave implements the /send_leave API
|
|
// nolint:gocyclo
|
|
func SendLeave(
|
|
httpReq *http.Request,
|
|
request *fclient.FederationRequest,
|
|
cfg *config.FederationAPI,
|
|
rsAPI api.FederationRoomserverAPI,
|
|
keys gomatrixserverlib.JSONVerifier,
|
|
roomID, eventID string,
|
|
) util.JSONResponse {
|
|
roomVersion, err := rsAPI.QueryRoomVersionForRoom(httpReq.Context(), roomID)
|
|
if err != nil {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.UnsupportedRoomVersion(err.Error()),
|
|
}
|
|
}
|
|
|
|
verImpl, err := gomatrixserverlib.GetRoomVersion(roomVersion)
|
|
if err != nil {
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.UnsupportedRoomVersion(
|
|
fmt.Sprintf("QueryRoomVersionForRoom returned unknown version: %s", roomVersion),
|
|
),
|
|
}
|
|
}
|
|
|
|
// Decode the event JSON from the request.
|
|
event, err := verImpl.NewEventFromUntrustedJSON(request.Content())
|
|
switch err.(type) {
|
|
case gomatrixserverlib.BadJSONError:
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON(err.Error()),
|
|
}
|
|
case nil:
|
|
default:
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.NotJSON("The request body could not be decoded into valid JSON. " + err.Error()),
|
|
}
|
|
}
|
|
|
|
// Check that the room ID is correct.
|
|
if event.RoomID() != roomID {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("The room ID in the request path must match the room ID in the leave event JSON"),
|
|
}
|
|
}
|
|
|
|
// Check that the event ID is correct.
|
|
if event.EventID() != eventID {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("The event ID in the request path must match the event ID in the leave event JSON"),
|
|
}
|
|
}
|
|
|
|
if event.StateKey() == nil || event.StateKeyEquals("") {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("No state key was provided in the leave event."),
|
|
}
|
|
}
|
|
if !event.StateKeyEquals(string(event.SenderID())) {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("Event state key must match the event sender."),
|
|
}
|
|
}
|
|
|
|
// Check that the sender belongs to the server that is sending us
|
|
// the request. By this point we've already asserted that the sender
|
|
// and the state key are equal so we don't need to check both.
|
|
validRoomID, err := spec.NewRoomID(event.RoomID())
|
|
if err != nil {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("Room ID is invalid."),
|
|
}
|
|
}
|
|
sender, err := rsAPI.QueryUserIDForSender(httpReq.Context(), *validRoomID, event.SenderID())
|
|
if err != nil {
|
|
return util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("The sender of the join is invalid"),
|
|
}
|
|
} else if sender.Domain() != request.Origin() {
|
|
return util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("The sender does not match the server that originated the request"),
|
|
}
|
|
}
|
|
|
|
// Check if the user has already left. If so, no-op!
|
|
queryReq := &api.QueryLatestEventsAndStateRequest{
|
|
RoomID: roomID,
|
|
StateToFetch: []gomatrixserverlib.StateKeyTuple{
|
|
{
|
|
EventType: spec.MRoomMember,
|
|
StateKey: *event.StateKey(),
|
|
},
|
|
},
|
|
}
|
|
queryRes := &api.QueryLatestEventsAndStateResponse{}
|
|
err = rsAPI.QueryLatestEventsAndState(httpReq.Context(), queryReq, queryRes)
|
|
if err != nil {
|
|
util.GetLogger(httpReq.Context()).WithError(err).Error("rsAPI.QueryLatestEventsAndState failed")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
// The room doesn't exist or we weren't ever joined to it. Might as well
|
|
// no-op here.
|
|
if !queryRes.RoomExists || len(queryRes.StateEvents) == 0 {
|
|
return util.JSONResponse{
|
|
Code: http.StatusOK,
|
|
JSON: struct{}{},
|
|
}
|
|
}
|
|
// Check if we're recycling a previous leave event.
|
|
if event.EventID() == queryRes.StateEvents[0].EventID() {
|
|
return util.JSONResponse{
|
|
Code: http.StatusOK,
|
|
JSON: struct{}{},
|
|
}
|
|
}
|
|
// We are/were joined/invited/banned or something. Check if
|
|
// we can no-op here.
|
|
if len(queryRes.StateEvents) == 1 {
|
|
if mem, merr := queryRes.StateEvents[0].Membership(); merr == nil && mem == spec.Leave {
|
|
return util.JSONResponse{
|
|
Code: http.StatusOK,
|
|
JSON: struct{}{},
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check that the event is signed by the server sending the request.
|
|
redacted, err := verImpl.RedactEventJSON(event.JSON())
|
|
if err != nil {
|
|
logrus.WithError(err).Errorf("XXX: leave.go")
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("The event JSON could not be redacted"),
|
|
}
|
|
}
|
|
verifyRequests := []gomatrixserverlib.VerifyJSONRequest{{
|
|
ServerName: sender.Domain(),
|
|
Message: redacted,
|
|
AtTS: event.OriginServerTS(),
|
|
ValidityCheckingFunc: gomatrixserverlib.StrictValiditySignatureCheck,
|
|
}}
|
|
verifyResults, err := keys.VerifyJSONs(httpReq.Context(), verifyRequests)
|
|
if err != nil {
|
|
util.GetLogger(httpReq.Context()).WithError(err).Error("keys.VerifyJSONs failed")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
if verifyResults[0].Error != nil {
|
|
return util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("The leave must be signed by the server it originated on"),
|
|
}
|
|
}
|
|
|
|
// check membership is set to leave
|
|
mem, err := event.Membership()
|
|
if err != nil {
|
|
util.GetLogger(httpReq.Context()).WithError(err).Error("event.Membership failed")
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("missing content.membership key"),
|
|
}
|
|
}
|
|
if mem != spec.Leave {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON("The membership in the event content must be set to leave"),
|
|
}
|
|
}
|
|
|
|
// Send the events to the room server.
|
|
// We are responsible for notifying other servers that the user has left
|
|
// the room, so set SendAsServer to cfg.Matrix.ServerName
|
|
var response api.InputRoomEventsResponse
|
|
rsAPI.InputRoomEvents(httpReq.Context(), &api.InputRoomEventsRequest{
|
|
InputRoomEvents: []api.InputRoomEvent{
|
|
{
|
|
Kind: api.KindNew,
|
|
Event: &types.HeaderedEvent{PDU: event},
|
|
SendAsServer: string(cfg.Matrix.ServerName),
|
|
TransactionID: nil,
|
|
},
|
|
},
|
|
}, &response)
|
|
|
|
if response.ErrMsg != "" {
|
|
util.GetLogger(httpReq.Context()).WithField(logrus.ErrorKey, response.ErrMsg).WithField("not_allowed", response.NotAllowed).Error("producer.SendEvents failed")
|
|
if response.NotAllowed {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.Forbidden(response.ErrMsg),
|
|
}
|
|
}
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
|
|
return util.JSONResponse{
|
|
Code: http.StatusOK,
|
|
JSON: struct{}{},
|
|
}
|
|
}
|