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Refactor SendMembership - make ban test pass (#1160)

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* Refactor SendMembership - make ban test pass

* Only check invite auth events for local invites
This commit is contained in:
Kegsay 2020-06-24 18:19:54 +01:00 committed by GitHub
parent a06d0921c9
commit e560619f76
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 237 additions and 105 deletions
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7
clientapi/routing/createroom.go
View File

@ -28,7 +28,6 @@ import (
"github.com/matrix-org/dendrite/clientapi/httputil"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
"github.com/matrix-org/dendrite/clientapi/threepid"
"github.com/matrix-org/dendrite/internal/config"
"github.com/matrix-org/dendrite/internal/eventutil"
"github.com/matrix-org/dendrite/userapi/storage/accounts"
@ -373,13 +372,9 @@ func createRoom(
// If this is a direct message then we should invite the participants.
for _, invitee := range r.Invite {
// Build the membership request.
body := threepid.MembershipRequest{
UserID: invitee,
}
// Build the invite event.
inviteEvent, err := buildMembershipEvent(
req.Context(), body, accountDB, device, gomatrixserverlib.Invite,
req.Context(), invitee, "", accountDB, device, gomatrixserverlib.Invite,
roomID, true, cfg, evTime, rsAPI, asAPI,
)
if err != nil {

237
clientapi/routing/membership.go
View File

@ -38,40 +38,141 @@ import (
var errMissingUserID = errors.New("'user_id' must be supplied")
// SendMembership implements PUT /rooms/{roomID}/(join|kick|ban|unban|leave|invite)
// by building a m.room.member event then sending it to the room server
// TODO: Can we improve the cyclo count here? Separate code paths for invites?
// nolint:gocyclo
func SendMembership(
func SendBan(
req *http.Request, accountDB accounts.Database, device *userapi.Device,
roomID string, membership string, cfg *config.Dendrite,
roomID string, cfg *config.Dendrite,
rsAPI roomserverAPI.RoomserverInternalAPI, asAPI appserviceAPI.AppServiceQueryAPI,
) util.JSONResponse {
verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
verRes := api.QueryRoomVersionForRoomResponse{}
if err := rsAPI.QueryRoomVersionForRoom(req.Context(), &verReq, &verRes); err != nil {
body, evTime, roomVer, reqErr := extractRequestData(req, roomID, rsAPI)
if reqErr != nil {
return *reqErr
}
return sendMembership(req.Context(), accountDB, device, roomID, "ban", body.Reason, cfg, body.UserID, evTime, roomVer, rsAPI, asAPI)
}
func sendMembership(ctx context.Context, accountDB accounts.Database, device *userapi.Device,
roomID, membership, reason string, cfg *config.Dendrite, targetUserID string, evTime time.Time,
roomVer gomatrixserverlib.RoomVersion,
rsAPI roomserverAPI.RoomserverInternalAPI, asAPI appserviceAPI.AppServiceQueryAPI) util.JSONResponse {
event, err := buildMembershipEvent(
ctx, targetUserID, reason, accountDB, device, membership,
roomID, false, cfg, evTime, rsAPI, asAPI,
)
if err == errMissingUserID {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
JSON: jsonerror.BadJSON(err.Error()),
}
} else if err == eventutil.ErrRoomNoExists {
return util.JSONResponse{
Code: http.StatusNotFound,
JSON: jsonerror.NotFound(err.Error()),
}
} else if err != nil {
util.GetLogger(ctx).WithError(err).Error("buildMembershipEvent failed")
return jsonerror.InternalServerError()
}
_, err = roomserverAPI.SendEvents(
ctx, rsAPI,
[]gomatrixserverlib.HeaderedEvent{event.Headered(roomVer)},
cfg.Matrix.ServerName,
nil,
)
if err != nil {
util.GetLogger(ctx).WithError(err).Error("SendEvents failed")
return jsonerror.InternalServerError()
}
return util.JSONResponse{
Code: http.StatusOK,
JSON: struct{}{},
}
}
func SendKick(
req *http.Request, accountDB accounts.Database, device *userapi.Device,
roomID string, cfg *config.Dendrite,
rsAPI roomserverAPI.RoomserverInternalAPI, asAPI appserviceAPI.AppServiceQueryAPI,
) util.JSONResponse {
body, evTime, roomVer, reqErr := extractRequestData(req, roomID, rsAPI)
if reqErr != nil {
return *reqErr
}
if body.UserID == "" {
return util.JSONResponse{
Code: 400,
JSON: jsonerror.BadJSON("missing user_id"),
}
}
var body threepid.MembershipRequest
if reqErr := httputil.UnmarshalJSONRequest(req, &body); reqErr != nil {
var queryRes roomserverAPI.QueryMembershipForUserResponse
err := rsAPI.QueryMembershipForUser(req.Context(), &roomserverAPI.QueryMembershipForUserRequest{
RoomID: roomID,
UserID: body.UserID,
}, &queryRes)
if err != nil {
return util.ErrorResponse(err)
}
// kick is only valid if the user is not currently banned
if queryRes.Membership == "ban" {
return util.JSONResponse{
Code: 403,
JSON: jsonerror.Unknown("cannot /kick banned users"),
}
}
// TODO: should we be using SendLeave instead?
return sendMembership(req.Context(), accountDB, device, roomID, "leave", body.Reason, cfg, body.UserID, evTime, roomVer, rsAPI, asAPI)
}
func SendUnban(
req *http.Request, accountDB accounts.Database, device *userapi.Device,
roomID string, cfg *config.Dendrite,
rsAPI roomserverAPI.RoomserverInternalAPI, asAPI appserviceAPI.AppServiceQueryAPI,
) util.JSONResponse {
body, evTime, roomVer, reqErr := extractRequestData(req, roomID, rsAPI)
if reqErr != nil {
return *reqErr
}
if body.UserID == "" {
return util.JSONResponse{
Code: 400,
JSON: jsonerror.BadJSON("missing user_id"),
}
}
var queryRes roomserverAPI.QueryMembershipForUserResponse
err := rsAPI.QueryMembershipForUser(req.Context(), &roomserverAPI.QueryMembershipForUserRequest{
RoomID: roomID,
UserID: body.UserID,
}, &queryRes)
if err != nil {
return util.ErrorResponse(err)
}
// unban is only valid if the user is currently banned
if queryRes.Membership != "ban" {
return util.JSONResponse{
Code: 400,
JSON: jsonerror.Unknown("can only /unban users that are banned"),
}
}
// TODO: should we be using SendLeave instead?
return sendMembership(req.Context(), accountDB, device, roomID, "leave", body.Reason, cfg, body.UserID, evTime, roomVer, rsAPI, asAPI)
}
func SendInvite(
req *http.Request, accountDB accounts.Database, device *userapi.Device,
roomID string, cfg *config.Dendrite,
rsAPI roomserverAPI.RoomserverInternalAPI, asAPI appserviceAPI.AppServiceQueryAPI,
) util.JSONResponse {
body, evTime, roomVer, reqErr := extractRequestData(req, roomID, rsAPI)
if reqErr != nil {
return *reqErr
}
evTime, err := httputil.ParseTSParam(req)
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.InvalidArgumentValue(err.Error()),
}
}
inviteStored, jsonErrResp := checkAndProcessThreepid(
req, device, &body, cfg, rsAPI, accountDB,
membership, roomID, evTime,
req, device, body, cfg, rsAPI, accountDB, roomID, evTime,
)
if jsonErrResp != nil {
return *jsonErrResp
@ -88,7 +189,7 @@ func SendMembership(
}
event, err := buildMembershipEvent(
req.Context(), body, accountDB, device, membership,
req.Context(), body.UserID, body.Reason, accountDB, device, "invite",
roomID, false, cfg, evTime, rsAPI, asAPI,
)
if err == errMissingUserID {
@ -106,14 +207,9 @@ func SendMembership(
return jsonerror.InternalServerError()
}
var returnData interface{} = struct{}{}
switch membership {
case gomatrixserverlib.Invite:
// Invites need to be handled specially
perr := roomserverAPI.SendInvite(
req.Context(), rsAPI,
event.Headered(verRes.RoomVersion),
event.Headered(roomVer),
nil, // ask the roomserver to draw up invite room state for us
cfg.Matrix.ServerName,
nil,
@ -122,45 +218,21 @@ func SendMembership(
util.GetLogger(req.Context()).WithError(perr).Error("producer.SendInvite failed")
return perr.JSONResponse()
}
case gomatrixserverlib.Join:
// The join membership requires the room id to be sent in the response
returnData = struct {
RoomID string `json:"room_id"`
}{roomID}
fallthrough
default:
_, err = roomserverAPI.SendEvents(
req.Context(), rsAPI,
[]gomatrixserverlib.HeaderedEvent{event.Headered(verRes.RoomVersion)},
cfg.Matrix.ServerName,
nil,
)
if err != nil {
util.GetLogger(req.Context()).WithError(err).Error("SendEvents failed")
return jsonerror.InternalServerError()
}
}
return util.JSONResponse{
Code: http.StatusOK,
JSON: returnData,
JSON: struct{}{},
}
}
func buildMembershipEvent(
ctx context.Context,
body threepid.MembershipRequest, accountDB accounts.Database,
targetUserID, reason string, accountDB accounts.Database,
device *userapi.Device,
membership, roomID string, isDirect bool,
cfg *config.Dendrite, evTime time.Time,
rsAPI roomserverAPI.RoomserverInternalAPI, asAPI appserviceAPI.AppServiceQueryAPI,
) (*gomatrixserverlib.Event, error) {
stateKey, reason, err := getMembershipStateKey(body, device, membership)
if err != nil {
return nil, err
}
profile, err := loadProfile(ctx, stateKey, cfg, accountDB, asAPI)
profile, err := loadProfile(ctx, targetUserID, cfg, accountDB, asAPI)
if err != nil {
return nil, err
}
@ -169,12 +241,7 @@ func buildMembershipEvent(
Sender: device.UserID,
RoomID: roomID,
Type: "m.room.member",
StateKey: &stateKey,
}
// "unban" or "kick" isn't a valid membership value, change it to "leave"
if membership == "unban" || membership == "kick" {
membership = gomatrixserverlib.Leave
StateKey: &targetUserID,
}
content := gomatrixserverlib.MemberContent{
@ -218,29 +285,33 @@ func loadProfile(
return profile, err
}
// getMembershipStateKey extracts the target user ID of a membership change.
// For "join" and "leave" this will be the ID of the user making the change.
// For "ban", "unban", "kick" and "invite" the target user ID will be in the JSON request body.
// In the latter case, if there was an issue retrieving the user ID from the request body,
// returns a JSONResponse with a corresponding error code and message.
func getMembershipStateKey(
body threepid.MembershipRequest, device *userapi.Device, membership string,
) (stateKey string, reason string, err error) {
if membership == gomatrixserverlib.Ban || membership == "unban" || membership == "kick" || membership == gomatrixserverlib.Invite {
// If we're in this case, the state key is contained in the request body,
// possibly along with a reason (for "kick" and "ban") so we need to parse
// it
if body.UserID == "" {
err = errMissingUserID
func extractRequestData(req *http.Request, roomID string, rsAPI api.RoomserverInternalAPI) (
body *threepid.MembershipRequest, evTime time.Time, roomVer gomatrixserverlib.RoomVersion, resErr *util.JSONResponse,
) {
verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
verRes := api.QueryRoomVersionForRoomResponse{}
if err := rsAPI.QueryRoomVersionForRoom(req.Context(), &verReq, &verRes); err != nil {
resErr = &util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
}
return
}
roomVer = verRes.RoomVersion
if reqErr := httputil.UnmarshalJSONRequest(req, &body); reqErr != nil {
resErr = reqErr
return
}
stateKey = body.UserID
reason = body.Reason
} else {
stateKey = device.UserID
evTime, err := httputil.ParseTSParam(req)
if err != nil {
resErr = &util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.InvalidArgumentValue(err.Error()),
}
return
}
return
}
@ -251,13 +322,13 @@ func checkAndProcessThreepid(
cfg *config.Dendrite,
rsAPI roomserverAPI.RoomserverInternalAPI,
accountDB accounts.Database,
membership, roomID string,
roomID string,
evTime time.Time,
) (inviteStored bool, errRes *util.JSONResponse) {
inviteStored, err := threepid.CheckAndProcessInvite(
req.Context(), device, body, cfg, rsAPI, accountDB,
membership, roomID, evTime,
roomID, evTime,
)
if err == threepid.ErrMissingParameter {
return inviteStored, &util.JSONResponse{

42
clientapi/routing/routing.go
View File

@ -101,6 +101,17 @@ func Setup(
return GetJoinedRooms(req, device, accountDB)
}),
).Methods(http.MethodGet, http.MethodOptions)
r0mux.Handle("/rooms/{roomID}/join",
httputil.MakeAuthAPI(gomatrixserverlib.Join, userAPI, func(req *http.Request, device *api.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return JoinRoomByIDOrAlias(
req, device, rsAPI, accountDB, vars["roomID"],
)
}),
).Methods(http.MethodPost, http.MethodOptions)
r0mux.Handle("/rooms/{roomID}/leave",
httputil.MakeAuthAPI("membership", userAPI, func(req *http.Request, device *api.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
@ -112,13 +123,40 @@ func Setup(
)
}),
).Methods(http.MethodPost, http.MethodOptions)
r0mux.Handle("/rooms/{roomID}/{membership:(?:join|kick|ban|unban|invite)}",
r0mux.Handle("/rooms/{roomID}/ban",
httputil.MakeAuthAPI("membership", userAPI, func(req *http.Request, device *api.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return SendMembership(req, accountDB, device, vars["roomID"], vars["membership"], cfg, rsAPI, asAPI)
return SendBan(req, accountDB, device, vars["roomID"], cfg, rsAPI, asAPI)
}),
).Methods(http.MethodPost, http.MethodOptions)
r0mux.Handle("/rooms/{roomID}/invite",
httputil.MakeAuthAPI("membership", userAPI, func(req *http.Request, device *api.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return SendInvite(req, accountDB, device, vars["roomID"], cfg, rsAPI, asAPI)
}),
).Methods(http.MethodPost, http.MethodOptions)
r0mux.Handle("/rooms/{roomID}/kick",
httputil.MakeAuthAPI("membership", userAPI, func(req *http.Request, device *api.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return SendKick(req, accountDB, device, vars["roomID"], cfg, rsAPI, asAPI)
}),
).Methods(http.MethodPost, http.MethodOptions)
r0mux.Handle("/rooms/{roomID}/unban",
httputil.MakeAuthAPI("membership", userAPI, func(req *http.Request, device *api.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return SendUnban(req, accountDB, device, vars["roomID"], cfg, rsAPI, asAPI)
}),
).Methods(http.MethodPost, http.MethodOptions)
r0mux.Handle("/rooms/{roomID}/send/{eventType}",

4
clientapi/threepid/invites.go
View File

@ -88,10 +88,10 @@ func CheckAndProcessInvite(
ctx context.Context,
device *userapi.Device, body *MembershipRequest, cfg *config.Dendrite,
rsAPI api.RoomserverInternalAPI, db accounts.Database,
membership string, roomID string,
roomID string,
evTime time.Time,
) (inviteStoredOnIDServer bool, err error) {
if membership != gomatrixserverlib.Invite || (body.Address == "" && body.IDServer == "" && body.Medium == "") {
if body.Address == "" && body.IDServer == "" && body.Medium == "" {
// If none of the 3PID-specific fields are supplied, it's a standard invite
// so return nil for it to be processed as such
return

2
roomserver/api/query.go
View File

@ -112,6 +112,8 @@ type QueryMembershipForUserResponse struct {
HasBeenInRoom bool `json:"has_been_in_room"`
// True if the user is in room.
IsInRoom bool `json:"is_in_room"`
// The current membership
Membership string
}
// QueryMembershipsForRoomRequest is a request to QueryMembershipsForRoom

20
roomserver/internal/perform_invite.go
View File

@ -55,6 +55,7 @@ func (r *RoomserverInternalAPI) performInvite(ctx context.Context,
return nil
}
// nolint:gocyclo
func (r *RoomserverInternalAPI) processInviteEvent(
ctx context.Context,
ow *RoomserverInternalAPI,
@ -135,6 +136,25 @@ func (r *RoomserverInternalAPI) processInviteEvent(
}
event := input.Event.Unwrap()
// check that the user is allowed to do this. We can only do this check if it is
// a local invite as we have the auth events, else we have to take it on trust.
if loopback != nil {
_, err = checkAuthEvents(ctx, r.DB, input.Event, input.Event.AuthEventIDs())
if err != nil {
log.WithError(err).WithField("event_id", event.EventID()).WithField("auth_event_ids", event.AuthEventIDs()).Error(
"processInviteEvent.checkAuthEvents failed for event",
)
if _, ok := err.(*gomatrixserverlib.NotAllowed); ok {
return nil, &api.PerformError{
Msg: err.Error(),
Code: api.PerformErrorNotAllowed,
}
}
return nil, err
}
}
if len(input.InviteRoomState) > 0 {
// If we were supplied with some invite room state already (which is
// most likely to be if the event came in over federation) then use

11
roomserver/internal/query.go
View File

@ -225,13 +225,18 @@ func (r *RoomserverInternalAPI) QueryMembershipForUser(
}
response.IsInRoom = stillInRoom
eventIDMap, err := r.DB.EventIDs(ctx, []types.EventNID{membershipEventNID})
evs, err := r.DB.Events(ctx, []types.EventNID{membershipEventNID})
if err != nil {
return err
}
if len(evs) != 1 {
return fmt.Errorf("failed to load membership event for event NID %d", membershipEventNID)
}
response.EventID = eventIDMap[membershipEventNID]
return nil
response.EventID = evs[0].EventID()
response.Membership, err = evs[0].Membership()
return err
}
// QueryMembershipsForRoom implements api.RoomserverInternalAPI

1
sytest-whitelist
View File

@ -365,3 +365,4 @@ Invited user can reject local invite after originator leaves
Typing notification sent to local room members
Typing notifications also sent to remote room members
Typing can be explicitly stopped
Banned user is kicked and may not rejoin until unbanned