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 Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

package oracle

​

import (

    "context"

    "errors"

    "net/http"

    "net/url"

    "strings"

    "time"

​

    "github.com/omeid/go-yarn"

    "golang.zabbix.com/sdk/metric"

    "golang.zabbix.com/sdk/plugin"

    "golang.zabbix.com/sdk/uri"

    "golang.zabbix.com/sdk/zbxerr"

)

​

const (

    pluginName = "Oracle"

    hkInterval = 10

    sqlExt     = ".sql"

​

    sysdbaExtension  = " as sysdba"

    sysasmExtension  = " as sysoper"

    sysoperExtension = " as sysasm"

​

    sysdbaPrivelege  = "sysdba"

    sysasmPrivelege  = "sysoper"

    sysoperPrivelege = "sysasm"

)

​

// Plugin inherits plugin.Base and store plugin-specific data.

type Plugin struct {

    plugin.Base

    connMgr *ConnManager

    options PluginOptions

}

​

// impl is the pointer to the plugin implementation.

var impl Plugin

​

// Export implements the Exporter interface.

func (p *Plugin) Export(key string, rawParams []string, _ plugin.ContextProvider) (result interface{}, err error) {

    params, extraParams, hc, err := metrics[key].EvalParams(rawParams, p.options.Sessions)

    if err != nil {

        return nil, err

    }

​

    err = metric.SetDefaults(params, hc, p.options.Default)

    if err != nil {

        return nil, err

    }

​

    service := url.QueryEscape(params["Service"])

​

    user, privilege, err := splitUserPrivilege(params)

    if err != nil {

        return nil, zbxerr.ErrorInvalidParams.Wrap(err)

    }

​

    uri, err := uri.NewWithCreds(params["URI"]+"?service="+service, user, params["Password"], uriDefaults)

    if err != nil {

        return nil, err

    }

​

    handleMetric := getHandlerFunc(key)

    if handleMetric == nil {

        return nil, zbxerr.ErrorUnsupportedMetric

    }

​

    conn, err := p.connMgr.GetConnection(connDetails{*uri, privilege})

    if err != nil {

        // Special logic of processing connection errors should be used if oracle.ping is requested

        // because it must return pingFailed if any error occurred.

        if key == keyPing {

            return pingFailed, nil

        }