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Move Invite logic to GMSL (#3086)

Browse source 
This is both the federation receiving & sending side logic (which were
previously entangeld in a single function)
This commit is contained in:
devonh 2023-05-31 16:33:49 +00:00 committed by GitHub
parent cbdc601f1b
commit ea6b368ad4
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 359 additions and 442 deletions
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1
clientapi/routing/createroom.go
View file

@ -135,7 +135,6 @@ func CreateRoom(
// createRoom implements /createRoom
func createRoom(
ctx context.Context,
// TODO: remove dependency on createRoomRequest
createRequest createRoomRequest, device *api.Device,
cfg *config.ClientAPI,
profileAPI api.ClientUserAPI, rsAPI roomserverAPI.ClientRoomserverAPI,

8
federationapi/api/api.go
View file

@ -62,7 +62,7 @@ type RoomserverFederationAPI interface {
// Handle an instruction to make_leave & send_leave with a remote server.
PerformLeave(ctx context.Context, request *PerformLeaveRequest, response *PerformLeaveResponse) error
// Handle sending an invite to a remote server.
PerformInvite(ctx context.Context, request *PerformInviteRequest, response *PerformInviteResponse) error
SendInvite(ctx context.Context, event gomatrixserverlib.PDU, strippedState []gomatrixserverlib.InviteStrippedState) (gomatrixserverlib.PDU, error)
// Handle an instruction to peek a room on a remote server.
PerformOutboundPeek(ctx context.Context, request *PerformOutboundPeekRequest, response *PerformOutboundPeekResponse) error
// Query the server names of the joined hosts in a room.
@ -190,9 +190,9 @@ type PerformLeaveResponse struct {
}
type PerformInviteRequest struct {
RoomVersion gomatrixserverlib.RoomVersion `json:"room_version"`
Event *rstypes.HeaderedEvent `json:"event"`
InviteRoomState []fclient.InviteV2StrippedState `json:"invite_room_state"`
RoomVersion gomatrixserverlib.RoomVersion `json:"room_version"`
Event *rstypes.HeaderedEvent `json:"event"`
InviteRoomState []gomatrixserverlib.InviteStrippedState `json:"invite_room_state"`
}
type PerformInviteResponse struct {

47
federationapi/internal/perform.go
View file

@ -503,60 +503,59 @@ func (r *FederationInternalAPI) PerformLeave(
)
}
// PerformLeaveRequest implements api.FederationInternalAPI
func (r *FederationInternalAPI) PerformInvite(
// SendInvite implements api.FederationInternalAPI
func (r *FederationInternalAPI) SendInvite(
ctx context.Context,
request *api.PerformInviteRequest,
response *api.PerformInviteResponse,
) (err error) {
_, origin, err := r.cfg.Matrix.SplitLocalID('@', request.Event.Sender())
event gomatrixserverlib.PDU,
strippedState []gomatrixserverlib.InviteStrippedState,
) (gomatrixserverlib.PDU, error) {
_, origin, err := r.cfg.Matrix.SplitLocalID('@', event.Sender())
if err != nil {
return err
return nil, err
}
if request.Event.StateKey() == nil {
return errors.New("invite must be a state event")
if event.StateKey() == nil {
return nil, errors.New("invite must be a state event")
}
_, destination, err := gomatrixserverlib.SplitID('@', *request.Event.StateKey())
_, destination, err := gomatrixserverlib.SplitID('@', *event.StateKey())
if err != nil {
return fmt.Errorf("gomatrixserverlib.SplitID: %w", err)
return nil, fmt.Errorf("gomatrixserverlib.SplitID: %w", err)
}
// TODO (devon): This should be allowed via a relay. Currently only transactions
// can be sent to relays. Would need to extend relays to handle invites.
if !r.shouldAttemptDirectFederation(destination) {
return fmt.Errorf("relay servers have no meaningful response for invite.")
return nil, fmt.Errorf("relay servers have no meaningful response for invite.")
}
logrus.WithFields(logrus.Fields{
"event_id": request.Event.EventID(),
"user_id": *request.Event.StateKey(),
"room_id": request.Event.RoomID(),
"room_version": request.RoomVersion,
"event_id": event.EventID(),
"user_id": *event.StateKey(),
"room_id": event.RoomID(),
"room_version": event.Version(),
"destination": destination,
}).Info("Sending invite")
inviteReq, err := fclient.NewInviteV2Request(request.Event.PDU, request.InviteRoomState)
inviteReq, err := fclient.NewInviteV2Request(event, strippedState)
if err != nil {
return fmt.Errorf("gomatrixserverlib.NewInviteV2Request: %w", err)
return nil, fmt.Errorf("gomatrixserverlib.NewInviteV2Request: %w", err)
}
inviteRes, err := r.federation.SendInviteV2(ctx, origin, destination, inviteReq)
if err != nil {
return fmt.Errorf("r.federation.SendInviteV2: failed to send invite: %w", err)
return nil, fmt.Errorf("r.federation.SendInviteV2: failed to send invite: %w", err)
}
verImpl, err := gomatrixserverlib.GetRoomVersion(request.RoomVersion)
verImpl, err := gomatrixserverlib.GetRoomVersion(event.Version())
if err != nil {
return err
return nil, err
}
inviteEvent, err := verImpl.NewEventFromUntrustedJSON(inviteRes.Event)
if err != nil {
return fmt.Errorf("r.federation.SendInviteV2 failed to decode event response: %w", err)
return nil, fmt.Errorf("r.federation.SendInviteV2 failed to decode event response: %w", err)
}
response.Event = &types.HeaderedEvent{PDU: inviteEvent}
return nil
return inviteEvent, nil
}
// PerformServersAlive implements api.FederationInternalAPI

259
federationapi/routing/invite.go
View file

@ -20,7 +20,6 @@ import (
"fmt"
"net/http"
"github.com/getsentry/sentry-go"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/roomserver/types"
"github.com/matrix-org/dendrite/setup/config"
@ -34,7 +33,7 @@ import (
func InviteV2(
httpReq *http.Request,
request *fclient.FederationRequest,
roomID string,
roomID spec.RoomID,
eventID string,
cfg *config.FederationAPI,
rsAPI api.FederationRoomserverAPI,
@ -56,9 +55,55 @@ func InviteV2(
JSON: spec.BadJSON(err.Error()),
}
case nil:
return processInvite(
httpReq.Context(), true, inviteReq.Event(), inviteReq.RoomVersion(), inviteReq.InviteRoomState(), roomID, eventID, cfg, rsAPI, keys,
)
if inviteReq.Event().StateKey() == nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.BadJSON("The invite event has no state key"),
}
}
invitedUser, userErr := spec.NewUserID(*inviteReq.Event().StateKey(), true)
if userErr != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.InvalidParam("The user ID is invalid"),
}
}
if !cfg.Matrix.IsLocalServerName(invitedUser.Domain()) {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.InvalidParam("The invited user domain does not belong to this server"),
}
}
if inviteReq.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 invite event JSON"),
}
}
input := gomatrixserverlib.HandleInviteInput{
RoomVersion: inviteReq.RoomVersion(),
RoomID: roomID,
InvitedUser: *invitedUser,
KeyID: cfg.Matrix.KeyID,
PrivateKey: cfg.Matrix.PrivateKey,
Verifier: keys,
RoomQuerier: rsAPI,
MembershipQuerier: &api.MembershipQuerier{Roomserver: rsAPI},
StateQuerier: rsAPI.StateQuerier(),
InviteEvent: inviteReq.Event(),
StrippedState: inviteReq.InviteRoomState(),
}
event, jsonErr := handleInvite(httpReq.Context(), input, rsAPI)
if jsonErr != nil {
return *jsonErr
}
return util.JSONResponse{
Code: http.StatusOK,
JSON: fclient.RespInviteV2{Event: event.JSON()},
}
default:
return util.JSONResponse{
Code: http.StatusBadRequest,
@ -71,7 +116,7 @@ func InviteV2(
func InviteV1(
httpReq *http.Request,
request *fclient.FederationRequest,
roomID string,
roomID spec.RoomID,
eventID string,
cfg *config.FederationAPI,
rsAPI api.FederationRoomserverAPI,
@ -94,55 +139,11 @@ func InviteV1(
JSON: spec.NotJSON("The request body could not be decoded into an invite v1 request. " + err.Error()),
}
}
var strippedState []fclient.InviteV2StrippedState
if err := json.Unmarshal(event.Unsigned(), &strippedState); err != nil {
var strippedState []gomatrixserverlib.InviteStrippedState
if jsonErr := json.Unmarshal(event.Unsigned(), &strippedState); jsonErr != nil {
// just warn, they may not have added any.
util.GetLogger(httpReq.Context()).Warnf("failed to extract stripped state from invite event")
}
return processInvite(
httpReq.Context(), false, event, roomVer, strippedState, roomID, eventID, cfg, rsAPI, keys,
)
}
func processInvite(
ctx context.Context,
isInviteV2 bool,
event gomatrixserverlib.PDU,
roomVer gomatrixserverlib.RoomVersion,
strippedState []fclient.InviteV2StrippedState,
roomID string,
eventID string,
cfg *config.FederationAPI,
rsAPI api.FederationRoomserverAPI,
keys gomatrixserverlib.JSONVerifier,
) util.JSONResponse {
// Check that we can accept invites for this room version.
verImpl, err := gomatrixserverlib.GetRoomVersion(roomVer)
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.UnsupportedRoomVersion(
fmt.Sprintf("Room version %q is not supported by this server.", roomVer),
),
}
}
// 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 invite 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 invite event JSON"),
}
}
if event.StateKey() == nil {
return util.JSONResponse{
@ -151,105 +152,91 @@ func processInvite(
}
}
_, domain, err := cfg.Matrix.SplitLocalID('@', *event.StateKey())
invitedUser, err := spec.NewUserID(*event.StateKey(), true)
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.InvalidParam(fmt.Sprintf("The user ID is invalid or domain %q does not belong to this server", domain)),
JSON: spec.InvalidParam("The user ID is invalid"),
}
}
// Check that the event is signed by the server sending the request.
redacted, err := verImpl.RedactEventJSON(event.JSON())
if err != nil {
if !cfg.Matrix.IsLocalServerName(invitedUser.Domain()) {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.BadJSON("The event JSON could not be redacted"),
JSON: spec.InvalidParam("The invited user domain does not belong to this server"),
}
}
_, serverName, err := gomatrixserverlib.SplitID('@', event.Sender())
if err != nil {
if event.EventID() != eventID {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.BadJSON("The event JSON contains an invalid sender"),
}
}
verifyRequests := []gomatrixserverlib.VerifyJSONRequest{{
ServerName: serverName,
Message: redacted,
AtTS: event.OriginServerTS(),
StrictValidityChecking: true,
}}
verifyResults, err := keys.VerifyJSONs(ctx, verifyRequests)
if err != nil {
util.GetLogger(ctx).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 invite must be signed by the server it originated on"),
JSON: spec.BadJSON("The event ID in the request path must match the event ID in the invite event JSON"),
}
}
// Sign the event so that other servers will know that we have received the invite.
signedEvent := event.Sign(
string(domain), cfg.Matrix.KeyID, cfg.Matrix.PrivateKey,
)
// Add the invite event to the roomserver.
inviteEvent := &types.HeaderedEvent{PDU: signedEvent}
request := &api.PerformInviteRequest{
Event: inviteEvent,
InviteRoomState: strippedState,
RoomVersion: inviteEvent.Version(),
SendAsServer: string(api.DoNotSendToOtherServers),
TransactionID: nil,
input := gomatrixserverlib.HandleInviteInput{
RoomVersion: roomVer,
RoomID: roomID,
InvitedUser: *invitedUser,
KeyID: cfg.Matrix.KeyID,
PrivateKey: cfg.Matrix.PrivateKey,
Verifier: keys,
RoomQuerier: rsAPI,
MembershipQuerier: &api.MembershipQuerier{Roomserver: rsAPI},
StateQuerier: rsAPI.StateQuerier(),
InviteEvent: event,
StrippedState: strippedState,
}
if err = rsAPI.PerformInvite(ctx, request); err != nil {
util.GetLogger(ctx).WithError(err).Error("PerformInvite failed")
return util.JSONResponse{
Code: http.StatusInternalServerError,
JSON: spec.InternalServerError{},
}
event, jsonErr := handleInvite(httpReq.Context(), input, rsAPI)
if jsonErr != nil {
return *jsonErr
}
switch e := err.(type) {
case api.ErrInvalidID:
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.Unknown(e.Error()),
}
case api.ErrNotAllowed:
return util.JSONResponse{
Code: http.StatusForbidden,
JSON: spec.Forbidden(e.Error()),
}
case nil:
default:
util.GetLogger(ctx).WithError(err).Error("PerformInvite failed")
sentry.CaptureException(err)
return util.JSONResponse{
Code: http.StatusInternalServerError,
JSON: spec.InternalServerError{},
}
}
// Return the signed event to the originating server, it should then tell
// the other servers in the room that we have been invited.
if isInviteV2 {
return util.JSONResponse{
Code: http.StatusOK,
JSON: fclient.RespInviteV2{Event: signedEvent.JSON()},
}
} else {
return util.JSONResponse{
Code: http.StatusOK,
JSON: fclient.RespInvite{Event: signedEvent.JSON()},
}
return util.JSONResponse{
Code: http.StatusOK,
JSON: fclient.RespInvite{Event: event.JSON()},
}
}
func handleInvite(ctx context.Context, input gomatrixserverlib.HandleInviteInput, rsAPI api.FederationRoomserverAPI) (gomatrixserverlib.PDU, *util.JSONResponse) {
inviteEvent, err := gomatrixserverlib.HandleInvite(ctx, input)
switch e := err.(type) {
case nil:
case spec.InternalServerError:
util.GetLogger(ctx).WithError(err)
return nil, &util.JSONResponse{
Code: http.StatusInternalServerError,
JSON: spec.InternalServerError{},
}
case spec.MatrixError:
util.GetLogger(ctx).WithError(err)
code := http.StatusInternalServerError
switch e.ErrCode {
case spec.ErrorForbidden:
code = http.StatusForbidden
case spec.ErrorUnsupportedRoomVersion:
fallthrough // http.StatusBadRequest
case spec.ErrorBadJSON:
code = http.StatusBadRequest
}
return nil, &util.JSONResponse{
Code: code,
JSON: e,
}
default:
util.GetLogger(ctx).WithError(err)
return nil, &util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.Unknown("unknown error"),
}
}
headeredInvite := &types.HeaderedEvent{PDU: inviteEvent}
if err = rsAPI.HandleInvite(ctx, headeredInvite); err != nil {
util.GetLogger(ctx).WithError(err).Error("HandleInvite failed")
return nil, &util.JSONResponse{
Code: http.StatusInternalServerError,
JSON: spec.InternalServerError{},
}
}
return inviteEvent, nil
}

21
federationapi/routing/join.go
View file

@ -216,25 +216,6 @@ func MakeJoin(
}
}
type MembershipQuerier struct {
roomserver api.FederationRoomserverAPI
}
func (mq *MembershipQuerier) CurrentMembership(ctx context.Context, roomID spec.RoomID, userID spec.UserID) (string, error) {
req := api.QueryMembershipForUserRequest{
RoomID: roomID.String(),
UserID: userID.String(),
}
res := api.QueryMembershipForUserResponse{}
err := mq.roomserver.QueryMembershipForUser(ctx, &req, &res)
membership := ""
if err == nil {
membership = res.Membership
}
return membership, err
}
// SendJoin implements the /send_join API
// The make-join send-join dance makes much more sense as a single
// flow so the cyclomatic complexity is high:
@ -268,7 +249,7 @@ func SendJoin(
KeyID: cfg.Matrix.KeyID,
PrivateKey: cfg.Matrix.PrivateKey,
Verifier: keys,
MembershipQuerier: &MembershipQuerier{roomserver: rsAPI},
MembershipQuerier: &api.MembershipQuerier{Roomserver: rsAPI},
}
response, joinErr := gomatrixserverlib.HandleSendJoin(input)
switch e := joinErr.(type) {

20
federationapi/routing/routing.go
View file

@ -152,8 +152,16 @@ func Setup(
JSON: spec.Forbidden("Forbidden by server ACLs"),
}
}
roomID, err := spec.NewRoomID(vars["roomID"])
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.InvalidParam("Invalid RoomID"),
}
}
return InviteV1(
httpReq, request, vars["roomID"], vars["eventID"],
httpReq, request, *roomID, vars["eventID"],
cfg, rsAPI, keys,
)
},
@ -168,8 +176,16 @@ func Setup(
JSON: spec.Forbidden("Forbidden by server ACLs"),
}
}
roomID, err := spec.NewRoomID(vars["roomID"])
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.InvalidParam("Invalid RoomID"),
}
}
return InviteV2(
httpReq, request, vars["roomID"], vars["eventID"],
httpReq, request, *roomID, vars["eventID"],
cfg, rsAPI, keys,
)
},

2
go.mod
View file

@ -22,7 +22,7 @@ require (
github.com/matrix-org/dugong v0.0.0-20210921133753-66e6b1c67e2e
github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91
github.com/matrix-org/gomatrix v0.0.0-20220926102614-ceba4d9f7530
github.com/matrix-org/gomatrixserverlib v0.0.0-20230531143710-c681a0658246
github.com/matrix-org/gomatrixserverlib v0.0.0-20230531155817-0e3adf17bee6
github.com/matrix-org/pinecone v0.11.1-0.20230210171230-8c3b24f2649a
github.com/matrix-org/util v0.0.0-20221111132719-399730281e66
github.com/mattn/go-sqlite3 v1.14.16

4
go.sum
View file

@ -323,8 +323,8 @@ github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91 h1:s7fexw
github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91/go.mod h1:e+cg2q7C7yE5QnAXgzo512tgFh1RbQLC0+jozuegKgo=
github.com/matrix-org/gomatrix v0.0.0-20220926102614-ceba4d9f7530 h1:kHKxCOLcHH8r4Fzarl4+Y3K5hjothkVW5z7T1dUM11U=
github.com/matrix-org/gomatrix v0.0.0-20220926102614-ceba4d9f7530/go.mod h1:/gBX06Kw0exX1HrwmoBibFA98yBk/jxKpGVeyQbff+s=
github.com/matrix-org/gomatrixserverlib v0.0.0-20230531143710-c681a0658246 h1:1sYXx7p9BIf0R7OIV/TZg3SCvNehEQPCKNqwV1ONfwU=
github.com/matrix-org/gomatrixserverlib v0.0.0-20230531143710-c681a0658246/go.mod h1:H9V9N3Uqn1bBJqYJNGK1noqtgJTaCEhtTdcH/mp50uU=
github.com/matrix-org/gomatrixserverlib v0.0.0-20230531155817-0e3adf17bee6 h1:Kh1TNvJDhWN5CdgtICNUC4G0wV2km51LGr46Dvl153A=
github.com/matrix-org/gomatrixserverlib v0.0.0-20230531155817-0e3adf17bee6/go.mod h1:H9V9N3Uqn1bBJqYJNGK1noqtgJTaCEhtTdcH/mp50uU=
github.com/matrix-org/pinecone v0.11.1-0.20230210171230-8c3b24f2649a h1:awrPDf9LEFySxTLKYBMCiObelNx/cBuv/wzllvCCH3A=
github.com/matrix-org/pinecone v0.11.1-0.20230210171230-8c3b24f2649a/go.mod h1:HchJX9oKMXaT2xYFs0Ha/6Zs06mxLU8k6F1ODnrGkeQ=
github.com/matrix-org/util v0.0.0-20221111132719-399730281e66 h1:6z4KxomXSIGWqhHcfzExgkH3Z3UkIXry4ibJS4Aqz2Y=

5
roomserver/api/api.go
View file

@ -225,6 +225,8 @@ type FederationRoomserverAPI interface {
QueryRoomsForUser(ctx context.Context, req *QueryRoomsForUserRequest, res *QueryRoomsForUserResponse) error
QueryRestrictedJoinAllowed(ctx context.Context, req *QueryRestrictedJoinAllowedRequest, res *QueryRestrictedJoinAllowedResponse) error
PerformInboundPeek(ctx context.Context, req *PerformInboundPeekRequest, res *PerformInboundPeekResponse) error
HandleInvite(ctx context.Context, event *types.HeaderedEvent) error
PerformInvite(ctx context.Context, req *PerformInviteRequest) error
// Query a given amount (or less) of events prior to a given set of events.
PerformBackfill(ctx context.Context, req *PerformBackfillRequest, res *PerformBackfillResponse) error
@ -234,6 +236,9 @@ type FederationRoomserverAPI interface {
QueryRoomInfo(ctx context.Context, roomID spec.RoomID) (*types.RoomInfo, error)
UserJoinedToRoom(ctx context.Context, roomID types.RoomNID, userID spec.UserID) (bool, error)
LocallyJoinedUsers(ctx context.Context, roomVersion gomatrixserverlib.RoomVersion, roomNID types.RoomNID) ([]gomatrixserverlib.PDU, error)
IsKnownRoom(ctx context.Context, roomID spec.RoomID) (bool, error)
StateQuerier() gomatrixserverlib.StateQuerier
}
type KeyserverRoomserverAPI interface {

11
roomserver/api/perform.go
View file

@ -7,7 +7,6 @@ import (
"github.com/matrix-org/dendrite/roomserver/types"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/fclient"
"github.com/matrix-org/gomatrixserverlib/spec"
"github.com/matrix-org/util"
)
@ -52,11 +51,11 @@ type PerformLeaveResponse struct {
}
type PerformInviteRequest struct {
RoomVersion gomatrixserverlib.RoomVersion `json:"room_version"`
Event *types.HeaderedEvent `json:"event"`
InviteRoomState []fclient.InviteV2StrippedState `json:"invite_room_state"`
SendAsServer string `json:"send_as_server"`
TransactionID *TransactionID `json:"transaction_id"`
RoomVersion gomatrixserverlib.RoomVersion `json:"room_version"`
Event *types.HeaderedEvent `json:"event"`
InviteRoomState []gomatrixserverlib.InviteStrippedState `json:"invite_room_state"`
SendAsServer string `json:"send_as_server"`
TransactionID *TransactionID `json:"transaction_id"`
}
type PerformPeekRequest struct {

20
roomserver/api/query.go
View file

@ -17,6 +17,7 @@
package api
import (
"context"
"encoding/json"
"fmt"
"strings"
@ -457,3 +458,22 @@ type QueryLeftUsersRequest struct {
type QueryLeftUsersResponse struct {
LeftUsers []string `json:"user_ids"`
}
type MembershipQuerier struct {
Roomserver FederationRoomserverAPI
}
func (mq *MembershipQuerier) CurrentMembership(ctx context.Context, roomID spec.RoomID, userID spec.UserID) (string, error) {
req := QueryMembershipForUserRequest{
RoomID: roomID.String(),
UserID: userID.String(),
}
res := QueryMembershipForUserResponse{}
err := mq.Roomserver.QueryMembershipForUser(ctx, &req, &res)
membership := ""
if err == nil {
membership = res.Membership
}
return membership, err
}

29
roomserver/internal/api.go
View file

@ -20,6 +20,7 @@ import (
"github.com/matrix-org/dendrite/roomserver/internal/query"
"github.com/matrix-org/dendrite/roomserver/producers"
"github.com/matrix-org/dendrite/roomserver/storage"
"github.com/matrix-org/dendrite/roomserver/types"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/setup/jetstream"
"github.com/matrix-org/dendrite/setup/process"
@ -132,6 +133,7 @@ func (r *RoomserverInternalAPI) SetFederationAPI(fsAPI fsAPI.RoomserverFederatio
DB: r.DB,
Cfg: &r.Cfg.RoomServer,
FSAPI: r.fsAPI,
RSAPI: r,
Inputer: r.Inputer,
}
r.Joiner = &perform.Joiner{
@ -213,6 +215,24 @@ func (r *RoomserverInternalAPI) SetAppserviceAPI(asAPI asAPI.AppServiceInternalA
r.asAPI = asAPI
}
func (r *RoomserverInternalAPI) IsKnownRoom(ctx context.Context, roomID spec.RoomID) (bool, error) {
return r.Inviter.IsKnownRoom(ctx, roomID)
}
func (r *RoomserverInternalAPI) StateQuerier() gomatrixserverlib.StateQuerier {
return r.Inviter.StateQuerier()
}
func (r *RoomserverInternalAPI) HandleInvite(
ctx context.Context, inviteEvent *types.HeaderedEvent,
) error {
outputEvents, err := r.Inviter.ProcessInviteMembership(ctx, inviteEvent)
if err != nil {
return err
}
return r.OutputProducer.ProduceRoomEvents(inviteEvent.RoomID(), outputEvents)
}
func (r *RoomserverInternalAPI) PerformCreateRoom(
ctx context.Context, userID spec.UserID, roomID spec.RoomID, createRequest *api.PerformCreateRoomRequest,
) (string, *util.JSONResponse) {
@ -223,14 +243,7 @@ func (r *RoomserverInternalAPI) PerformInvite(
ctx context.Context,
req *api.PerformInviteRequest,
) error {
outputEvents, err := r.Inviter.PerformInvite(ctx, req)
if err != nil {
return err
}
if len(outputEvents) == 0 {
return nil
}
return r.OutputProducer.ProduceRoomEvents(req.Event.RoomID(), outputEvents)
return r.Inviter.PerformInvite(ctx, req)
}
func (r *RoomserverInternalAPI) PerformLeave(

38
roomserver/internal/helpers/auth.go
View file

@ -70,7 +70,7 @@ func CheckForSoftFail(
)
// Load the actual auth events from the database.
authEvents, err := loadAuthEvents(ctx, db, roomInfo, stateNeeded, authStateEntries)
authEvents, err := loadAuthEvents(ctx, db, roomInfo.RoomVersion, stateNeeded, authStateEntries)
if err != nil {
return true, fmt.Errorf("loadAuthEvents: %w", err)
}
@ -83,15 +83,14 @@ func CheckForSoftFail(
return false, nil
}
// CheckAuthEvents checks that the event passes authentication checks
// Returns the numeric IDs for the auth events.
func CheckAuthEvents(
// GetAuthEvents returns the numeric IDs for the auth events.
func GetAuthEvents(
ctx context.Context,
db storage.RoomDatabase,
roomInfo *types.RoomInfo,
event *types.HeaderedEvent,
roomVersion gomatrixserverlib.RoomVersion,
event gomatrixserverlib.PDU,
authEventIDs []string,
) ([]types.EventNID, error) {
) (gomatrixserverlib.AuthEventProvider, error) {
// Grab the numeric IDs for the supplied auth state events from the database.
authStateEntries, err := db.StateEntriesForEventIDs(ctx, authEventIDs, true)
if err != nil {
@ -100,25 +99,14 @@ func CheckAuthEvents(
authStateEntries = types.DeduplicateStateEntries(authStateEntries)
// Work out which of the state events we actually need.
stateNeeded := gomatrixserverlib.StateNeededForAuth([]gomatrixserverlib.PDU{event.PDU})
stateNeeded := gomatrixserverlib.StateNeededForAuth([]gomatrixserverlib.PDU{event})
// Load the actual auth events from the database.
authEvents, err := loadAuthEvents(ctx, db, roomInfo, stateNeeded, authStateEntries)
authEvents, err := loadAuthEvents(ctx, db, roomVersion, stateNeeded, authStateEntries)
if err != nil {
return nil, fmt.Errorf("loadAuthEvents: %w", err)
}
// Check if the event is allowed.
if err = gomatrixserverlib.Allowed(event.PDU, &authEvents); err != nil {
return nil, err
}
// Return the numeric IDs for the auth events.
result := make([]types.EventNID, len(authStateEntries))
for i := range authStateEntries {
result[i] = authStateEntries[i].EventNID
}
return result, nil
return &authEvents, nil
}
type authEvents struct {
@ -196,7 +184,7 @@ func (ae *authEvents) lookupEvent(typeNID types.EventTypeNID, stateKey string) g
func loadAuthEvents(
ctx context.Context,
db state.StateResolutionStorage,
roomInfo *types.RoomInfo,
roomVersion gomatrixserverlib.RoomVersion,
needed gomatrixserverlib.StateNeeded,
state []types.StateEntry,
) (result authEvents, err error) {
@ -220,11 +208,7 @@ func loadAuthEvents(
}
}
if roomInfo == nil {
err = types.ErrorInvalidRoomInfo
return
}
if result.events, err = db.Events(ctx, roomInfo.RoomVersion, eventNIDs); err != nil {
if result.events, err = db.Events(ctx, roomVersion, eventNIDs); err != nil {
return
}
roomID := ""

6
roomserver/internal/perform/perform_create_room.go
View file

@ -376,7 +376,7 @@ func (c *Creator) PerformCreateRoom(ctx context.Context, userID spec.UserID, roo
// If this is a direct message then we should invite the participants.
if len(createRequest.InvitedUsers) > 0 {
// Build some stripped state for the invite.
var globalStrippedState []fclient.InviteV2StrippedState
var globalStrippedState []gomatrixserverlib.InviteStrippedState
for _, event := range builtEvents {
// Chosen events from the spec:
// https://spec.matrix.org/v1.3/client-server-api/#stripped-state
@ -399,7 +399,7 @@ func (c *Creator) PerformCreateRoom(ctx context.Context, userID spec.UserID, roo
ev := event.PDU
globalStrippedState = append(
globalStrippedState,
fclient.NewInviteV2StrippedState(ev),
gomatrixserverlib.NewInviteStrippedState(ev),
)
}
}
@ -443,7 +443,7 @@ func (c *Creator) PerformCreateRoom(ctx context.Context, userID spec.UserID, roo
}
inviteStrippedState := append(
globalStrippedState,
fclient.NewInviteV2StrippedState(inviteEvent.PDU),
gomatrixserverlib.NewInviteStrippedState(inviteEvent.PDU),
)
// Send the invite event to the roomserver.
event := inviteEvent

330
roomserver/internal/perform/perform_invite.go
View file

@ -28,186 +28,149 @@ import (
"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"
log "github.com/sirupsen/logrus"
)
type QueryState struct {
storage.Database
}
func (q *QueryState) GetAuthEvents(ctx context.Context, event gomatrixserverlib.PDU) (gomatrixserverlib.AuthEventProvider, error) {
return helpers.GetAuthEvents(ctx, q.Database, event.Version(), event, event.AuthEventIDs())
}
func (q *QueryState) GetState(ctx context.Context, roomID spec.RoomID, stateWanted []gomatrixserverlib.StateKeyTuple) ([]gomatrixserverlib.PDU, error) {
info, err := q.Database.RoomInfo(ctx, roomID.String())
if err != nil {
return nil, fmt.Errorf("failed to load RoomInfo: %w", err)
}
if info != nil {
roomState := state.NewStateResolution(q.Database, info)
stateEntries, err := roomState.LoadStateAtSnapshotForStringTuples(
ctx, info.StateSnapshotNID(), stateWanted,
)
if err != nil {
return nil, nil
}
stateNIDs := []types.EventNID{}
for _, stateNID := range stateEntries {
stateNIDs = append(stateNIDs, stateNID.EventNID)
}
stateEvents, err := q.Database.Events(ctx, info.RoomVersion, stateNIDs)
if err != nil {
return nil, fmt.Errorf("failed to obtain required events: %w", err)
}
events := []gomatrixserverlib.PDU{}
for _, event := range stateEvents {
events = append(events, event.PDU)
}
return events, nil
}
return nil, nil
}
type Inviter struct {
DB storage.Database
Cfg *config.RoomServer
FSAPI federationAPI.RoomserverFederationAPI
RSAPI api.RoomserverInternalAPI
Inputer *input.Inputer
}
func (r *Inviter) IsKnownRoom(ctx context.Context, roomID spec.RoomID) (bool, error) {
info, err := r.DB.RoomInfo(ctx, roomID.String())
if err != nil {
return false, fmt.Errorf("failed to load RoomInfo: %w", err)
}
return (info != nil && !info.IsStub()), nil
}
func (r *Inviter) StateQuerier() gomatrixserverlib.StateQuerier {
return &QueryState{Database: r.DB}
}
func (r *Inviter) ProcessInviteMembership(
ctx context.Context, inviteEvent *types.HeaderedEvent,
) ([]api.OutputEvent, error) {
var outputUpdates []api.OutputEvent
var updater *shared.MembershipUpdater
_, domain, err := gomatrixserverlib.SplitID('@', *inviteEvent.StateKey())
if err != nil {
return nil, api.ErrInvalidID{Err: fmt.Errorf("the user ID %s is invalid", *inviteEvent.StateKey())}
}
isTargetLocal := r.Cfg.Matrix.IsLocalServerName(domain)
if updater, err = r.DB.MembershipUpdater(ctx, inviteEvent.RoomID(), *inviteEvent.StateKey(), isTargetLocal, inviteEvent.Version()); err != nil {
return nil, fmt.Errorf("r.DB.MembershipUpdater: %w", err)
}
outputUpdates, err = helpers.UpdateToInviteMembership(updater, &types.Event{
EventNID: 0,
PDU: inviteEvent.PDU,
}, outputUpdates, inviteEvent.Version())
if err != nil {
return nil, fmt.Errorf("updateToInviteMembership: %w", err)
}
if err = updater.Commit(); err != nil {
return nil, fmt.Errorf("updater.Commit: %w", err)
}
return outputUpdates, nil
}
// nolint:gocyclo
func (r *Inviter) PerformInvite(
ctx context.Context,
req *api.PerformInviteRequest,
) ([]api.OutputEvent, error) {
var outputUpdates []api.OutputEvent
) error {
event := req.Event
sender, err := spec.NewUserID(event.Sender(), true)
if err != nil {
return spec.InvalidParam("The user ID is invalid")
}
if !r.Cfg.Matrix.IsLocalServerName(sender.Domain()) {
return api.ErrInvalidID{Err: fmt.Errorf("the invite must be from a local user")}
}
if event.StateKey() == nil {
return nil, fmt.Errorf("invite must be a state event")
return fmt.Errorf("invite must be a state event")
}
_, senderDomain, err := gomatrixserverlib.SplitID('@', event.Sender())
invitedUser, err := spec.NewUserID(*event.StateKey(), true)
if err != nil {
return nil, fmt.Errorf("sender %q is invalid", event.Sender())
return spec.InvalidParam("The user ID is invalid")
}
isTargetLocal := r.Cfg.Matrix.IsLocalServerName(invitedUser.Domain())
roomID := event.RoomID()
targetUserID := *event.StateKey()
info, err := r.DB.RoomInfo(ctx, roomID)
validRoomID, err := spec.NewRoomID(event.RoomID())
if err != nil {
return nil, fmt.Errorf("failed to load RoomInfo: %w", err)
return err
}
_, domain, err := gomatrixserverlib.SplitID('@', targetUserID)
input := gomatrixserverlib.PerformInviteInput{
RoomID: *validRoomID,
InviteEvent: event.PDU,
InvitedUser: *invitedUser,
IsTargetLocal: isTargetLocal,
StrippedState: req.InviteRoomState,
MembershipQuerier: &api.MembershipQuerier{Roomserver: r.RSAPI},
StateQuerier: &QueryState{r.DB},
}
inviteEvent, err := gomatrixserverlib.PerformInvite(ctx, input, r.FSAPI)
if err != nil {
return nil, api.ErrInvalidID{Err: fmt.Errorf("the user ID %s is invalid", targetUserID)}
}
isTargetLocal := r.Cfg.Matrix.IsLocalServerName(domain)
isOriginLocal := r.Cfg.Matrix.IsLocalServerName(senderDomain)
if !isOriginLocal && !isTargetLocal {
return nil, api.ErrInvalidID{Err: fmt.Errorf("the invite must be either from or to a local user")}
switch e := err.(type) {
case spec.MatrixError:
if e.ErrCode == spec.ErrorForbidden {
return api.ErrNotAllowed{Err: fmt.Errorf("%s", e.Err)}
}
}
return err
}
logger := util.GetLogger(ctx).WithFields(map[string]interface{}{
"inviter": event.Sender(),
"invitee": *event.StateKey(),
"room_id": roomID,
"event_id": event.EventID(),
})
logger.WithFields(log.Fields{
"room_version": req.RoomVersion,
"room_info_exists": info != nil,
"target_local": isTargetLocal,
"origin_local": isOriginLocal,
}).Debug("processing invite event")
inviteState := req.InviteRoomState
if len(inviteState) == 0 && info != nil {
var is []fclient.InviteV2StrippedState
if is, err = buildInviteStrippedState(ctx, r.DB, info, req); err == nil {
inviteState = is
}
}
if len(inviteState) == 0 {
if err = event.SetUnsignedField("invite_room_state", struct{}{}); err != nil {
return nil, fmt.Errorf("event.SetUnsignedField: %w", err)
}
} else {
if err = event.SetUnsignedField("invite_room_state", inviteState); err != nil {
return nil, fmt.Errorf("event.SetUnsignedField: %w", err)
}
}
updateMembershipTableManually := func() ([]api.OutputEvent, error) {
var updater *shared.MembershipUpdater
if updater, err = r.DB.MembershipUpdater(ctx, roomID, targetUserID, isTargetLocal, req.RoomVersion); err != nil {
return nil, fmt.Errorf("r.DB.MembershipUpdater: %w", err)
}
outputUpdates, err = helpers.UpdateToInviteMembership(updater, &types.Event{
EventNID: 0,
PDU: event.PDU,
}, outputUpdates, req.Event.Version())
if err != nil {
return nil, fmt.Errorf("updateToInviteMembership: %w", err)
}
if err = updater.Commit(); err != nil {
return nil, fmt.Errorf("updater.Commit: %w", err)
}
logger.Debugf("updated membership to invite and sending invite OutputEvent")
return outputUpdates, nil
}
if (info == nil || info.IsStub()) && !isOriginLocal && isTargetLocal {
// The invite came in over federation for a room that we don't know about
// yet. We need to handle this a bit differently to most invites because
// we don't know the room state, therefore the roomserver can't process
// an input event. Instead we will update the membership table with the
// new invite and generate an output event.
return updateMembershipTableManually()
}
var isAlreadyJoined bool
if info != nil {
_, isAlreadyJoined, _, err = r.DB.GetMembership(ctx, info.RoomNID, *event.StateKey())
if err != nil {
return nil, fmt.Errorf("r.DB.GetMembership: %w", err)
}
}
if isAlreadyJoined {
// If the user is joined to the room then that takes precedence over this
// invite event. It makes little sense to move a user that is already
// joined to the room into the invite state.
// This could plausibly happen if an invite request raced with a join
// request for a user. For example if a user was invited to a public
// room and they joined the room at the same time as the invite was sent.
// The other way this could plausibly happen is if an invite raced with
// a kick. For example if a user was kicked from a room in error and in
// response someone else in the room re-invited them then it is possible
// for the invite request to race with the leave event so that the
// target receives invite before it learns that it has been kicked.
// There are a few ways this could be plausibly handled in the roomserver.
// 1) Store the invite, but mark it as retired. That will result in the
// permanent rejection of that invite event. So even if the target
// user leaves the room and the invite is retransmitted it will be
// ignored. However a new invite with a new event ID would still be
// accepted.
// 2) Silently discard the invite event. This means that if the event
// was retransmitted at a later date after the target user had left
// the room we would accept the invite. However since we hadn't told
// the sending server that the invite had been discarded it would
// have no reason to attempt to retry.
// 3) Signal the sending server that the user is already joined to the
// room.
// For now we will implement option 2. Since in the abesence of a retry
// mechanism it will be equivalent to option 1, and we don't have a
// signalling mechanism to implement option 3.
logger.Debugf("user already joined")
return nil, api.ErrNotAllowed{Err: fmt.Errorf("user is already joined to room")}
}
// If the invite originated remotely then we can't send an
// InputRoomEvent for the invite as it will never pass auth checks
// due to lacking room state, but we still need to tell the client
// about the invite so we can accept it, hence we return an output
// event to send to the Sync API.
if !isOriginLocal {
return updateMembershipTableManually()
}
// The invite originated locally. Therefore we have a responsibility to
// try and see if the user is allowed to make this invite. We can't do
// this for invites coming in over federation - we have to take those on
// trust.
_, err = helpers.CheckAuthEvents(ctx, r.DB, info, event, event.AuthEventIDs())
if err != nil {
logger.WithError(err).WithField("event_id", event.EventID()).WithField("auth_event_ids", event.AuthEventIDs()).Error(
"processInviteEvent.checkAuthEvents failed for event",
)
return nil, api.ErrNotAllowed{Err: err}
}
// If the invite originated from us and the target isn't local then we
// should try and send the invite over federation first. It might be
// that the remote user doesn't exist, in which case we can give up
// processing here.
if req.SendAsServer != api.DoNotSendToOtherServers && !isTargetLocal {
fsReq := &federationAPI.PerformInviteRequest{
RoomVersion: req.RoomVersion,
Event: event,
InviteRoomState: inviteState,
}
fsRes := &federationAPI.PerformInviteResponse{}
if err = r.FSAPI.PerformInvite(ctx, fsReq, fsRes); err != nil {
logger.WithError(err).WithField("event_id", event.EventID()).Error("r.FSAPI.PerformInvite failed")
return nil, api.ErrNotAllowed{Err: err}
}
event = fsRes.Event
logger.Debugf("Federated PerformInvite success with event ID %s", event.EventID())
// Use the returned event if there was one (due to federation), otherwise
// send the original invite event to the roomserver.
if inviteEvent == nil {
inviteEvent = event
}
// Send the invite event to the roomserver input stream. This will
@ -219,67 +182,18 @@ func (r *Inviter) PerformInvite(
InputRoomEvents: []api.InputRoomEvent{
{
Kind: api.KindNew,
Event: event,
Origin: senderDomain,
Event: &types.HeaderedEvent{PDU: inviteEvent},
Origin: sender.Domain(),
SendAsServer: req.SendAsServer,
},
},
}
inputRes := &api.InputRoomEventsResponse{}
r.Inputer.InputRoomEvents(context.Background(), inputReq, inputRes)
if err = inputRes.Err(); err != nil {
logger.WithError(err).WithField("event_id", event.EventID()).Error("r.InputRoomEvents failed")
return nil, api.ErrNotAllowed{Err: err}
if err := inputRes.Err(); err != nil {
util.GetLogger(ctx).WithField("event_id", event.EventID()).Error("r.InputRoomEvents failed")
return api.ErrNotAllowed{Err: err}
}
// Don't notify the sync api of this event in the same way as a federated invite so the invitee
// gets the invite, as the roomserver will do this when it processes the m.room.member invite.
return outputUpdates, nil
}
func buildInviteStrippedState(
ctx context.Context,
db storage.Database,
info *types.RoomInfo,
input *api.PerformInviteRequest,
) ([]fclient.InviteV2StrippedState, error) {
stateWanted := []gomatrixserverlib.StateKeyTuple{}
// "If they are set on the room, at least the state for m.room.avatar, m.room.canonical_alias, m.room.join_rules, and m.room.name SHOULD be included."
// https://matrix.org/docs/spec/client_server/r0.6.0#m-room-member
for _, t := range []string{
spec.MRoomName, spec.MRoomCanonicalAlias,
spec.MRoomJoinRules, spec.MRoomAvatar,
spec.MRoomEncryption, spec.MRoomCreate,
} {
stateWanted = append(stateWanted, gomatrixserverlib.StateKeyTuple{
EventType: t,
StateKey: "",
})
}
roomState := state.NewStateResolution(db, info)
stateEntries, err := roomState.LoadStateAtSnapshotForStringTuples(
ctx, info.StateSnapshotNID(), stateWanted,
)
if err != nil {
return nil, err
}
stateNIDs := []types.EventNID{}
for _, stateNID := range stateEntries {
stateNIDs = append(stateNIDs, stateNID.EventNID)
}
if info == nil {
return nil, types.ErrorInvalidRoomInfo
}
stateEvents, err := db.Events(ctx, info.RoomVersion, stateNIDs)
if err != nil {
return nil, err
}
inviteState := []fclient.InviteV2StrippedState{
fclient.NewInviteV2StrippedState(input.Event.PDU),
}
stateEvents = append(stateEvents, types.Event{PDU: input.Event.PDU})
for _, event := range stateEvents {
inviteState = append(inviteState, fclient.NewInviteV2StrippedState(event.PDU))
}
return inviteState, nil
return nil
}