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260 lines
10 KiB
Go
260 lines
10 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package model
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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)
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const (
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WEBSOCKET_EVENT_TYPING = "typing"
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WEBSOCKET_EVENT_POSTED = "posted"
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WEBSOCKET_EVENT_POST_EDITED = "post_edited"
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WEBSOCKET_EVENT_POST_DELETED = "post_deleted"
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WEBSOCKET_EVENT_POST_UNREAD = "post_unread"
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WEBSOCKET_EVENT_CHANNEL_CONVERTED = "channel_converted"
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WEBSOCKET_EVENT_CHANNEL_CREATED = "channel_created"
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WEBSOCKET_EVENT_CHANNEL_DELETED = "channel_deleted"
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WEBSOCKET_EVENT_CHANNEL_RESTORED = "channel_restored"
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WEBSOCKET_EVENT_CHANNEL_UPDATED = "channel_updated"
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WEBSOCKET_EVENT_CHANNEL_MEMBER_UPDATED = "channel_member_updated"
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WEBSOCKET_EVENT_CHANNEL_SCHEME_UPDATED = "channel_scheme_updated"
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WEBSOCKET_EVENT_DIRECT_ADDED = "direct_added"
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WEBSOCKET_EVENT_GROUP_ADDED = "group_added"
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WEBSOCKET_EVENT_NEW_USER = "new_user"
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WEBSOCKET_EVENT_ADDED_TO_TEAM = "added_to_team"
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WEBSOCKET_EVENT_LEAVE_TEAM = "leave_team"
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WEBSOCKET_EVENT_UPDATE_TEAM = "update_team"
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WEBSOCKET_EVENT_DELETE_TEAM = "delete_team"
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WEBSOCKET_EVENT_RESTORE_TEAM = "restore_team"
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WEBSOCKET_EVENT_UPDATE_TEAM_SCHEME = "update_team_scheme"
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WEBSOCKET_EVENT_USER_ADDED = "user_added"
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WEBSOCKET_EVENT_USER_UPDATED = "user_updated"
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WEBSOCKET_EVENT_USER_ROLE_UPDATED = "user_role_updated"
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WEBSOCKET_EVENT_MEMBERROLE_UPDATED = "memberrole_updated"
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WEBSOCKET_EVENT_USER_REMOVED = "user_removed"
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WEBSOCKET_EVENT_PREFERENCE_CHANGED = "preference_changed"
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WEBSOCKET_EVENT_PREFERENCES_CHANGED = "preferences_changed"
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WEBSOCKET_EVENT_PREFERENCES_DELETED = "preferences_deleted"
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WEBSOCKET_EVENT_EPHEMERAL_MESSAGE = "ephemeral_message"
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WEBSOCKET_EVENT_STATUS_CHANGE = "status_change"
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WEBSOCKET_EVENT_HELLO = "hello"
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WEBSOCKET_AUTHENTICATION_CHALLENGE = "authentication_challenge"
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WEBSOCKET_EVENT_REACTION_ADDED = "reaction_added"
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WEBSOCKET_EVENT_REACTION_REMOVED = "reaction_removed"
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WEBSOCKET_EVENT_RESPONSE = "response"
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WEBSOCKET_EVENT_EMOJI_ADDED = "emoji_added"
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WEBSOCKET_EVENT_CHANNEL_VIEWED = "channel_viewed"
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WEBSOCKET_EVENT_PLUGIN_STATUSES_CHANGED = "plugin_statuses_changed"
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WEBSOCKET_EVENT_PLUGIN_ENABLED = "plugin_enabled"
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WEBSOCKET_EVENT_PLUGIN_DISABLED = "plugin_disabled"
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WEBSOCKET_EVENT_ROLE_UPDATED = "role_updated"
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WEBSOCKET_EVENT_LICENSE_CHANGED = "license_changed"
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WEBSOCKET_EVENT_CONFIG_CHANGED = "config_changed"
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WEBSOCKET_EVENT_OPEN_DIALOG = "open_dialog"
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WEBSOCKET_EVENT_GUESTS_DEACTIVATED = "guests_deactivated"
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WEBSOCKET_EVENT_RECEIVED_GROUP = "received_group"
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WEBSOCKET_EVENT_RECEIVED_GROUP_ASSOCIATED_TO_TEAM = "received_group_associated_to_team"
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WEBSOCKET_EVENT_RECEIVED_GROUP_NOT_ASSOCIATED_TO_TEAM = "received_group_not_associated_to_team"
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WEBSOCKET_EVENT_RECEIVED_GROUP_ASSOCIATED_TO_CHANNEL = "received_group_associated_to_channel"
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WEBSOCKET_EVENT_RECEIVED_GROUP_NOT_ASSOCIATED_TO_CHANNEL = "received_group_not_associated_to_channel"
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)
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type WebSocketMessage interface {
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ToJson() string
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IsValid() bool
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EventType() string
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}
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type WebsocketBroadcast struct {
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OmitUsers map[string]bool `json:"omit_users"` // broadcast is omitted for users listed here
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UserId string `json:"user_id"` // broadcast only occurs for this user
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ChannelId string `json:"channel_id"` // broadcast only occurs for users in this channel
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TeamId string `json:"team_id"` // broadcast only occurs for users in this team
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ContainsSanitizedData bool `json:"-"`
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ContainsSensitiveData bool `json:"-"`
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}
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type precomputedWebSocketEventJSON struct {
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Event json.RawMessage
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Data json.RawMessage
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Broadcast json.RawMessage
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}
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// webSocketEventJSON mirrors WebSocketEvent to make some of its unexported fields serializable
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type webSocketEventJSON struct {
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Event string `json:"event"`
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Data map[string]interface{} `json:"data"`
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Broadcast *WebsocketBroadcast `json:"broadcast"`
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Sequence int64 `json:"seq"`
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}
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// **NOTE**: Direct access to WebSocketEvent fields is deprecated. They will be
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// made unexported in next major version release. Provided getter functions should be used instead.
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type WebSocketEvent struct {
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Event string // Deprecated: use EventType()
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Data map[string]interface{} // Deprecated: use GetData()
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Broadcast *WebsocketBroadcast // Deprecated: use GetBroadcast()
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Sequence int64 // Deprecated: use GetSequence()
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precomputedJSON *precomputedWebSocketEventJSON
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}
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// PrecomputeJSON precomputes and stores the serialized JSON for all fields other than Sequence.
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// This makes ToJson much more efficient when sending the same event to multiple connections.
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func (ev *WebSocketEvent) PrecomputeJSON() *WebSocketEvent {
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copy := ev.Copy()
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event, _ := json.Marshal(copy.Event)
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data, _ := json.Marshal(copy.Data)
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broadcast, _ := json.Marshal(copy.Broadcast)
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copy.precomputedJSON = &precomputedWebSocketEventJSON{
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Event: json.RawMessage(event),
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Data: json.RawMessage(data),
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Broadcast: json.RawMessage(broadcast),
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}
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return copy
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}
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func (ev *WebSocketEvent) Add(key string, value interface{}) {
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ev.Data[key] = value
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}
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func NewWebSocketEvent(event, teamId, channelId, userId string, omitUsers map[string]bool) *WebSocketEvent {
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return &WebSocketEvent{Event: event, Data: make(map[string]interface{}),
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Broadcast: &WebsocketBroadcast{TeamId: teamId, ChannelId: channelId, UserId: userId, OmitUsers: omitUsers}}
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}
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func (ev *WebSocketEvent) Copy() *WebSocketEvent {
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copy := &WebSocketEvent{
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Event: ev.Event,
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Data: ev.Data,
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Broadcast: ev.Broadcast,
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Sequence: ev.Sequence,
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precomputedJSON: ev.precomputedJSON,
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}
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return copy
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}
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func (ev *WebSocketEvent) GetData() map[string]interface{} {
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return ev.Data
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}
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func (ev *WebSocketEvent) GetBroadcast() *WebsocketBroadcast {
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return ev.Broadcast
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}
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func (ev *WebSocketEvent) GetSequence() int64 {
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return ev.Sequence
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}
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func (ev *WebSocketEvent) SetEvent(event string) *WebSocketEvent {
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copy := ev.Copy()
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copy.Event = event
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return copy
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}
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func (ev *WebSocketEvent) SetData(data map[string]interface{}) *WebSocketEvent {
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copy := ev.Copy()
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copy.Data = data
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return copy
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}
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func (ev *WebSocketEvent) SetBroadcast(broadcast *WebsocketBroadcast) *WebSocketEvent {
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copy := ev.Copy()
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copy.Broadcast = broadcast
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return copy
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}
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func (ev *WebSocketEvent) SetSequence(seq int64) *WebSocketEvent {
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copy := ev.Copy()
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copy.Sequence = seq
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return copy
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}
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func (ev *WebSocketEvent) IsValid() bool {
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return ev.Event != ""
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}
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func (ev *WebSocketEvent) EventType() string {
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return ev.Event
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}
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func (ev *WebSocketEvent) ToJson() string {
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if ev.precomputedJSON != nil {
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return fmt.Sprintf(`{"event": %s, "data": %s, "broadcast": %s, "seq": %d}`, ev.precomputedJSON.Event, ev.precomputedJSON.Data, ev.precomputedJSON.Broadcast, ev.Sequence)
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}
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b, _ := json.Marshal(webSocketEventJSON{
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ev.Event,
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ev.Data,
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ev.Broadcast,
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ev.Sequence,
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})
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return string(b)
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}
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func WebSocketEventFromJson(data io.Reader) *WebSocketEvent {
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var ev WebSocketEvent
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var o webSocketEventJSON
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if err := json.NewDecoder(data).Decode(&o); err != nil {
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return nil
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}
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ev.Event = o.Event
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if u, ok := o.Data["user"]; ok {
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// We need to convert to and from JSON again
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// because the user is in the form of a map[string]interface{}.
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buf, err := json.Marshal(u)
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if err != nil {
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return nil
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}
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o.Data["user"] = UserFromJson(bytes.NewReader(buf))
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}
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ev.Data = o.Data
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ev.Broadcast = o.Broadcast
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ev.Sequence = o.Sequence
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return &ev
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}
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// WebSocketResponse represents a response received through the WebSocket
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// for a request made to the server. This is available through the ResponseChannel
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// channel in WebSocketClient.
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type WebSocketResponse struct {
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Status string `json:"status"` // The status of the response. For example: OK, FAIL.
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SeqReply int64 `json:"seq_reply,omitempty"` // A counter which is incremented for every response sent.
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Data map[string]interface{} `json:"data,omitempty"` // The data contained in the response.
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Error *AppError `json:"error,omitempty"` // A field that is set if any error has occurred.
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}
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func (m *WebSocketResponse) Add(key string, value interface{}) {
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m.Data[key] = value
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}
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func NewWebSocketResponse(status string, seqReply int64, data map[string]interface{}) *WebSocketResponse {
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return &WebSocketResponse{Status: status, SeqReply: seqReply, Data: data}
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}
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func NewWebSocketError(seqReply int64, err *AppError) *WebSocketResponse {
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return &WebSocketResponse{Status: STATUS_FAIL, SeqReply: seqReply, Error: err}
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}
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func (m *WebSocketResponse) IsValid() bool {
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return m.Status != ""
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}
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func (m *WebSocketResponse) EventType() string {
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return WEBSOCKET_EVENT_RESPONSE
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}
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func (m *WebSocketResponse) ToJson() string {
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b, _ := json.Marshal(m)
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return string(b)
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}
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func WebSocketResponseFromJson(data io.Reader) *WebSocketResponse {
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var o *WebSocketResponse
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json.NewDecoder(data).Decode(&o)
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return o
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}
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