113 lines
4 KiB
Go
113 lines
4 KiB
Go
/* Copyright 2017 Vector Creations Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package synctypes
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import (
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/gomatrixserverlib/spec"
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)
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type ClientEventFormat int
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const (
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// FormatAll will include all client event keys
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FormatAll ClientEventFormat = iota
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// FormatSync will include only the event keys required by the /sync API. Notably, this
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// means the 'room_id' will be missing from the events.
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FormatSync
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)
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// ClientEvent is an event which is fit for consumption by clients, in accordance with the specification.
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type ClientEvent struct {
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Content spec.RawJSON `json:"content"`
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EventID string `json:"event_id,omitempty"` // EventID is omitted on receipt events
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OriginServerTS spec.Timestamp `json:"origin_server_ts,omitempty"` // OriginServerTS is omitted on receipt events
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RoomID string `json:"room_id,omitempty"` // RoomID is omitted on /sync responses
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Sender string `json:"sender,omitempty"` // Sender is omitted on receipt events
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SenderKey spec.SenderID `json:"sender_key,omitempty"` // The SenderKey for events in pseudo ID rooms
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StateKey *string `json:"state_key,omitempty"`
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Type string `json:"type"`
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Unsigned spec.RawJSON `json:"unsigned,omitempty"`
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Redacts string `json:"redacts,omitempty"`
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}
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// ToClientEvents converts server events to client events.
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func ToClientEvents(serverEvs []gomatrixserverlib.PDU, format ClientEventFormat, userIDForSender spec.UserIDForSender) []ClientEvent {
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evs := make([]ClientEvent, 0, len(serverEvs))
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for _, se := range serverEvs {
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if se == nil {
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continue // TODO: shouldn't happen?
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}
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sender := spec.UserID{}
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userID, err := userIDForSender(se.RoomID(), se.SenderID())
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if err == nil && userID != nil {
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sender = *userID
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}
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sk := se.StateKey()
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if sk != nil && *sk != "" {
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skUserID, err := userIDForSender(se.RoomID(), spec.SenderID(*sk))
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if err == nil && skUserID != nil {
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skString := skUserID.String()
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sk = &skString
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}
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}
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evs = append(evs, ToClientEvent(se, format, sender, sk))
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}
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return evs
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}
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// ToClientEvent converts a single server event to a client event.
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func ToClientEvent(se gomatrixserverlib.PDU, format ClientEventFormat, sender spec.UserID, stateKey *string) ClientEvent {
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ce := ClientEvent{
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Content: spec.RawJSON(se.Content()),
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Sender: sender.String(),
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Type: se.Type(),
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StateKey: stateKey,
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Unsigned: spec.RawJSON(se.Unsigned()),
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OriginServerTS: se.OriginServerTS(),
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EventID: se.EventID(),
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Redacts: se.Redacts(),
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}
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if format == FormatAll {
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ce.RoomID = se.RoomID()
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}
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if se.Version() == gomatrixserverlib.RoomVersionPseudoIDs {
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ce.SenderKey = se.SenderID()
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}
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return ce
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}
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// ToClientEvent converts a single server event to a client event.
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// It provides default logic for event.SenderID & event.StateKey -> userID conversions.
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func ToClientEventDefault(userIDQuery spec.UserIDForSender, event gomatrixserverlib.PDU) ClientEvent {
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sender := spec.UserID{}
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userID, err := userIDQuery(event.RoomID(), event.SenderID())
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if err == nil && userID != nil {
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sender = *userID
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}
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sk := event.StateKey()
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if sk != nil && *sk != "" {
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skUserID, err := userIDQuery(event.RoomID(), spec.SenderID(*event.StateKey()))
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if err == nil && skUserID != nil {
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skString := skUserID.String()
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sk = &skString
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}
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}
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return ToClientEvent(event, FormatAll, sender, sk)
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}
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