websocket_message.go 4.37 KB
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// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
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// See License.txt for license information.

package model

import (
	"encoding/json"
	"io"
)

const (
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	WEBSOCKET_EVENT_TYPING              = "typing"
	WEBSOCKET_EVENT_POSTED              = "posted"
	WEBSOCKET_EVENT_POST_EDITED         = "post_edited"
	WEBSOCKET_EVENT_POST_DELETED        = "post_deleted"
	WEBSOCKET_EVENT_CHANNEL_DELETED     = "channel_deleted"
	WEBSOCKET_EVENT_CHANNEL_CREATED     = "channel_created"
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	WEBSOCKET_EVENT_CHANNEL_UPDATED     = "channel_updated"
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	WEBSOCKET_EVENT_DIRECT_ADDED        = "direct_added"
	WEBSOCKET_EVENT_GROUP_ADDED         = "group_added"
	WEBSOCKET_EVENT_NEW_USER            = "new_user"
	WEBSOCKET_EVENT_ADDED_TO_TEAM       = "added_to_team"
	WEBSOCKET_EVENT_LEAVE_TEAM          = "leave_team"
	WEBSOCKET_EVENT_UPDATE_TEAM         = "update_team"
	WEBSOCKET_EVENT_USER_ADDED          = "user_added"
	WEBSOCKET_EVENT_USER_UPDATED        = "user_updated"
	WEBSOCKET_EVENT_USER_REMOVED        = "user_removed"
	WEBSOCKET_EVENT_PREFERENCE_CHANGED  = "preference_changed"
	WEBSOCKET_EVENT_PREFERENCES_CHANGED = "preferences_changed"
	WEBSOCKET_EVENT_PREFERENCES_DELETED = "preferences_deleted"
	WEBSOCKET_EVENT_EPHEMERAL_MESSAGE   = "ephemeral_message"
	WEBSOCKET_EVENT_STATUS_CHANGE       = "status_change"
	WEBSOCKET_EVENT_HELLO               = "hello"
	WEBSOCKET_EVENT_WEBRTC              = "webrtc"
	WEBSOCKET_AUTHENTICATION_CHALLENGE  = "authentication_challenge"
	WEBSOCKET_EVENT_REACTION_ADDED      = "reaction_added"
	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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)

type WebSocketMessage interface {
	ToJson() string
	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
	ChannelId string          `json:"channel_id"` // broadcast only occurs for users in this channel
	TeamId    string          `json:"team_id"`    // broadcast only occurs for users in this team
}

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type WebSocketEvent struct {
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	Event     string                 `json:"event"`
	Data      map[string]interface{} `json:"data"`
	Broadcast *WebsocketBroadcast    `json:"broadcast"`
	Sequence  int64                  `json:"seq"`
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}

func (m *WebSocketEvent) Add(key string, value interface{}) {
	m.Data[key] = value
}

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func NewWebSocketEvent(event, teamId, channelId, userId string, omitUsers map[string]bool) *WebSocketEvent {
	return &WebSocketEvent{Event: event, Data: make(map[string]interface{}),
		Broadcast: &WebsocketBroadcast{TeamId: teamId, ChannelId: channelId, UserId: userId, OmitUsers: omitUsers}}
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}

func (o *WebSocketEvent) IsValid() bool {
	return o.Event != ""
}

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func (o *WebSocketEvent) EventType() string {
	return o.Event
}

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func (o *WebSocketEvent) ToJson() string {
	b, err := json.Marshal(o)
	if err != nil {
		return ""
	} else {
		return string(b)
	}
}

func WebSocketEventFromJson(data io.Reader) *WebSocketEvent {
	decoder := json.NewDecoder(data)
	var o WebSocketEvent
	err := decoder.Decode(&o)
	if err == nil {
		return &o
	} else {
		return nil
	}
}

type WebSocketResponse struct {
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	Status   string                 `json:"status"`
	SeqReply int64                  `json:"seq_reply,omitempty"`
	Data     map[string]interface{} `json:"data,omitempty"`
	Error    *AppError              `json:"error,omitempty"`
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}

func (m *WebSocketResponse) Add(key string, value interface{}) {
	m.Data[key] = value
}

func NewWebSocketResponse(status string, seqReply int64, data map[string]interface{}) *WebSocketResponse {
	return &WebSocketResponse{Status: status, SeqReply: seqReply, Data: data}
}

func NewWebSocketError(seqReply int64, err *AppError) *WebSocketResponse {
	return &WebSocketResponse{Status: STATUS_FAIL, SeqReply: seqReply, Error: err}
}

func (o *WebSocketResponse) IsValid() bool {
	return o.Status != ""
}

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func (o *WebSocketResponse) EventType() string {
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	return WEBSOCKET_EVENT_RESPONSE
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}

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func (o *WebSocketResponse) ToJson() string {
	b, err := json.Marshal(o)
	if err != nil {
		return ""
	} else {
		return string(b)
	}
}

func WebSocketResponseFromJson(data io.Reader) *WebSocketResponse {
	decoder := json.NewDecoder(data)
	var o WebSocketResponse
	err := decoder.Decode(&o)
	if err == nil {
		return &o
	} else {
		return nil
	}
}