Zabbix

/*

** Zabbix

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

/*

** We use the library Eclipse Paho (eclipse/paho.mqtt.golang), which is

** distributed under the terms of the Eclipse Distribution License 1.0 (The 3-Clause BSD License)

** available at https://www.eclipse.org/org/documents/edl-v10.php

**/

​

package mqtt

​

import (

    "crypto/tls"

    "encoding/json"

    "errors"

    "fmt"

    "math/rand"

    "net/url"

    "strings"

    "time"

​

    mqtt "github.com/eclipse/paho.mqtt.golang"

    "golang.zabbix.com/agent2/pkg/itemutil"

    "golang.zabbix.com/agent2/pkg/watch"

    "golang.zabbix.com/sdk/metric"

    "golang.zabbix.com/sdk/plugin"

    "golang.zabbix.com/sdk/tlsconfig"

    "golang.zabbix.com/sdk/zbxerr"

)

​

const (

    pluginName = "MQTT"

)

​

type mqttClient struct {

    client    mqtt.Client

    broker    broker

    subs      map[string]*mqttSub

    opts      *mqtt.ClientOptions

    connected bool

}

​

type mqttSub struct {

    broker   broker

    topic    string

    wildCard bool

}