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// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// 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 api
import (
"context"
"github.com/matrix-org/gomatrixserverlib"
)
// SendEvents to the roomserver The events are written with KindNew.
func SendEvents(
ctx context.Context, rsAPI RoomserverInternalAPI, events []gomatrixserverlib.HeaderedEvent,
sendAsServer gomatrixserverlib.ServerName, txnID *TransactionID,
) (string, error) {
ires := make([]InputRoomEvent, len(events))
for i, event := range events {
ires[i] = InputRoomEvent{
Kind: KindNew,
Event: event,
AuthEventIDs: event.AuthEventIDs(),
SendAsServer: string(sendAsServer),
TransactionID: txnID,
}
}
return SendInputRoomEvents(ctx, rsAPI, ires)
}
// SendEventWithState writes an event with KindNew to the roomserver
// with the state at the event as KindOutlier before it. Will not send any event that is
// marked as `true` in haveEventIDs
func SendEventWithState(
ctx context.Context, rsAPI RoomserverInternalAPI, state *gomatrixserverlib.RespState,
event gomatrixserverlib.HeaderedEvent, haveEventIDs map[string]bool,
) error {
outliers, err := state.Events()
if err != nil {
return err
}
var ires []InputRoomEvent
for _, outlier := range outliers {
if haveEventIDs[outlier.EventID()] {
continue
}
ires = append(ires, InputRoomEvent{
Kind: KindOutlier,
Event: outlier.Headered(event.RoomVersion),
AuthEventIDs: outlier.AuthEventIDs(),
})
}
stateEventIDs := make([]string, len(state.StateEvents))
for i := range state.StateEvents {
stateEventIDs[i] = state.StateEvents[i].EventID()
}
ires = append(ires, InputRoomEvent{
Kind: KindNew,
Event: event,
AuthEventIDs: event.AuthEventIDs(),
HasState: true,
StateEventIDs: stateEventIDs,
})
_, err = SendInputRoomEvents(ctx, rsAPI, ires)
return err
}
// SendInputRoomEvents to the roomserver.
func SendInputRoomEvents(
ctx context.Context, rsAPI RoomserverInternalAPI, ires []InputRoomEvent,
) (eventID string, err error) {
request := InputRoomEventsRequest{InputRoomEvents: ires}
var response InputRoomEventsResponse
err = rsAPI.InputRoomEvents(ctx, &request, &response)
eventID = response.EventID
return
}
// SendInvite event to the roomserver.
// This should only be needed for invite events that occur outside of a known room.
// If we are in the room then the event should be sent using the SendEvents method.
func SendInvite(
ctx context.Context,
rsAPI RoomserverInternalAPI, inviteEvent gomatrixserverlib.HeaderedEvent,
inviteRoomState []gomatrixserverlib.InviteV2StrippedState,
sendAsServer gomatrixserverlib.ServerName, txnID *TransactionID,
) error {
request := InputRoomEventsRequest{
InputInviteEvents: []InputInviteEvent{{
Event: inviteEvent,
InviteRoomState: inviteRoomState,
RoomVersion: inviteEvent.RoomVersion,
SendAsServer: string(sendAsServer),
TransactionID: txnID,
}},
}
var response InputRoomEventsResponse
return rsAPI.InputRoomEvents(ctx, &request, &response)
}
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