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/* Copyright 2017 Vector Creations Ltd
*
* 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 synctypes
import (
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/spec"
)
type ClientEventFormat int
const (
// FormatAll will include all client event keys
FormatAll ClientEventFormat = iota
// FormatSync will include only the event keys required by the /sync API. Notably, this
// means the 'room_id' will be missing from the events.
FormatSync
)
// ClientEvent is an event which is fit for consumption by clients, in accordance with the specification.
type ClientEvent struct {
Content spec.RawJSON `json:"content"`
EventID string `json:"event_id,omitempty"` // EventID is omitted on receipt events
OriginServerTS spec.Timestamp `json:"origin_server_ts,omitempty"` // OriginServerTS is omitted on receipt events
RoomID string `json:"room_id,omitempty"` // RoomID is omitted on /sync responses
Sender string `json:"sender,omitempty"` // Sender is omitted on receipt events
StateKey *string `json:"state_key,omitempty"`
Type string `json:"type"`
Unsigned spec.RawJSON `json:"unsigned,omitempty"`
Redacts string `json:"redacts,omitempty"`
}
// ToClientEvents converts server events to client events.
func ToClientEvents(serverEvs []gomatrixserverlib.PDU, format ClientEventFormat, userIDForSender spec.UserIDForSender) []ClientEvent {
evs := make([]ClientEvent, 0, len(serverEvs))
for _, se := range serverEvs {
if se == nil {
continue // TODO: shouldn't happen?
}
sender := spec.UserID{}
userID, err := userIDForSender(se.RoomID(), se.SenderID())
if err == nil && userID != nil {
sender = *userID
}
evs = append(evs, ToClientEvent(se, format, sender))
}
return evs
}
// ToClientEvent converts a single server event to a client event.
func ToClientEvent(se gomatrixserverlib.PDU, format ClientEventFormat, sender spec.UserID) ClientEvent {
ce := ClientEvent{
Content: spec.RawJSON(se.Content()),
Sender: sender.String(),
Type: se.Type(),
StateKey: se.StateKey(),
Unsigned: spec.RawJSON(se.Unsigned()),
OriginServerTS: se.OriginServerTS(),
EventID: se.EventID(),
Redacts: se.Redacts(),
}
if format == FormatAll {
ce.RoomID = se.RoomID()
}
return ce
}
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