first commit

plugins/system/quantummanagerconfig/language/en-GB/en-GB.plg_system_quantummanagerconfig.ini

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+PLG_QUANTUMMANAGERCONFIG="System - Import/Export settings for Quantum Manager"
+PLG_QUANTUMMANAGERCONFIG_XML_DESCRIPTION="Import/Export settings for Quantum Manager"
+PLG_QUANTUMMANAGERCONFIG_BUTTON_EXPORT="Export"
+PLG_QUANTUMMANAGERCONFIG_BUTTON_IMPORT="Import"
+PLG_QUANTUMMANAGERCONFIG_ALERT="You are going to import component configuration. Are you sure?"
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_UPLOAD_SUCCESS="Settings imported"
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_DATABASE="Import error: database problems"
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_FILE_UPLOAD="Import error: invalid export file."
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_FILE_NOTFOUND="Export error: export file not found."

plugins/system/quantummanagerconfig/language/en-GB/en-GB.plg_system_quantummanagerconfig.sys.ini

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+PLG_QUANTUMMANAGERCONFIG="System - Import/Export settings for Quantum Manager"
+PLG_QUANTUMMANAGERCONFIG_XML_DESCRIPTION="Import/Export settings for Quantum Manager"

plugins/system/quantummanagerconfig/language/ru-RU/ru-RU.plg_system_quantummanagerconfig.ini

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+PLG_QUANTUMMANAGERCONFIG="Система - Импорт/Экспорт настроек для Quantum Manager"
+PLG_QUANTUMMANAGERCONFIG_XML_DESCRIPTION="Импорт/Экспорт настроек для Quantum Manager"
+PLG_QUANTUMMANAGERCONFIG_BUTTON_EXPORT="Экспорт"
+PLG_QUANTUMMANAGERCONFIG_BUTTON_IMPORT="Импорт"
+PLG_QUANTUMMANAGERCONFIG_ALERT="Ваша конфигурация будет перезаписана. Вы уверены?"
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_UPLOAD_SUCCESS="Настройки импортированы"
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_DATABASE="Ошибка импорта: проблемы с базой данных"
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_FILE_UPLOAD="Ошибка импорта: неправильный файл экспорта."
+PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_FILE_NOTFOUND="Ошибка экспорта: файл экспорта не найден."

plugins/system/quantummanagerconfig/language/ru-RU/ru-RU.plg_system_quantummanagerconfig.sys.ini

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+PLG_QUANTUMMANAGERCONFIG="Система - Импорт/Экспорт настроек для Quantum Manager"
+PLG_QUANTUMMANAGERCONFIG_XML_DESCRIPTION="Импорт/Экспорт настроек для Quantum Manager"

plugins/system/quantummanagerconfig/quantummanagerconfig.php

@@ -0,0 +1,369 @@
+<?php
+/**
+ * @package    quantummanager
+ *
+ * @author     Dmitry Tsymbal <cymbal@delo-design.ru>
+ * @copyright  Copyright © 2019 Delo Design & NorrNext. All rights reserved.
+ * @license    GNU General Public License version 3 or later; see license.txt
+ * @link       https://www.norrnext.com
+ */
+
+use Joomla\CMS\Application\CMSApplication;
+use Joomla\CMS\Component\ComponentHelper;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Form\Form;
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Plugin\CMSPlugin;
+use Joomla\CMS\Table\Table;
+use Joomla\CMS\Toolbar\Toolbar;
+use Joomla\CMS\Uri\Uri;
+use Joomla\Database\DatabaseDriver;
+use Joomla\Registry\Registry;
+
+defined('_JEXEC') or die;
+
+/**
+ * Quantummanagerconfig plugin.
+ *
+ * @package   quantumyoothemepro
+ * @since     1.0.0
+ */
+class plgSystemQuantummanagerconfig extends CMSPlugin
+{
+
+    /**
+     * Application object
+     *
+     * @var    CMSApplication
+     * @since  1.0.0
+     */
+    protected $app;
+
+
+    /**
+     * Database object
+     *
+     * @var    DatabaseDriver
+     * @since  1.0.0
+     */
+    protected $db;
+
+
+    /**
+     * Affects constructor behavior. If true, language files will be loaded automatically.
+     *
+     * @var    boolean
+     * @since  1.0.0
+     */
+    protected $autoloadLanguage = true;
+
+
+    /**
+     * List of allowed list extensions
+     *
+     * @var string[][]
+     * @since version
+     */
+    protected $elements = [
+        [
+            'type' => 'component',
+            'element' => 'com_quantummanager'
+        ],
+        [
+            'type' => 'plugin',
+            'element' => 'quantummanagerbutton'
+        ],
+        [
+            'type' => 'plugin',
+            'element' => 'quantummanagermedia'
+        ]
+    ];
+
+
+    /**
+     * @param Form $form
+     * @param $data
+     *
+     *
+     * @since version
+     */
+    public function onContentPrepareForm(Form $form, $data)
+    {
+        $admin = $this->app->isClient('administrator');
+
+        if(!$admin)
+        {
+            return;
+        }
+
+        $element = '';
+        $find = false;
+        $option = $this->app->input->get('option');
+
+
+        if($option === 'com_config')
+        {
+            $view = $this->app->input->get('view');
+            $component = $this->app->input->get('component');
+            $components = [];
+
+            foreach ($this->elements as $element)
+            {
+                if($element['type'] === 'component')
+                {
+                    $components[] = $element['element'];
+                }
+            }
+
+            if($view === 'component' && in_array($component, $components))
+            {
+                $element = $component;
+                $find = true;
+            }
+
+        }
+
+        if($option === 'com_plugins')
+        {
+            $view = $this->app->input->get('view');
+
+            if($view !== 'plugin')
+            {
+                return;
+            }
+
+
+            $extension_id = $this->app->input->getInt('extension_id');
+            $plugins = [];
+            $plugin = '';
+
+            $table = Table::getInstance('extension');
+            $table->load($extension_id);
+
+            if(!empty($table->element))
+            {
+                $plugin = $table->element;
+            }
+            else
+            {
+                return;
+            }
+
+            foreach ($this->elements as $element)
+            {
+                if($element['type'] === 'plugin')
+                {
+                    $plugins[] = $element['element'];
+                }
+            }
+
+            if(in_array($plugin, $plugins))
+            {
+                $element = $plugin;
+                $find = true;
+            }
+
+        }
+
+        if(!$find)
+        {
+            return;
+        }
+
+        HTMLHelper::_('script', 'plg_system_quantummanagerconfig/importexport.js', [
+            'version' => filemtime(__FILE__),
+            'relative' => true
+        ]);
+
+
+        $toolbar = Toolbar::getInstance('toolbar');
+
+        $root = Uri::getInstance()->toString(array('scheme', 'host', 'port'));
+        $url = $root . '/administrator/index.php?' . http_build_query([
+                'option' => 'com_ajax',
+                'plugin' => 'quantummanagerconfig',
+                'group' => 'system',
+                'format' => 'raw',
+                'task' => 'export',
+                'element' => $element
+            ]);
+
+        Factory::getDocument()->addStyleDeclaration('#toolbar-quantum-config-button-position{float:right}');
+        Factory::getDocument()->addScriptDeclaration("window.QuantummanagerConfig = {alert: '" . htmlspecialchars(Text::_('PLG_QUANTUMMANAGERCONFIG_ALERT'), ENT_QUOTES) . "'}");
+
+        $button = '<a href="' . $url . '" class="btn btn-small">'
+            . '<span class="icon-download" aria-hidden="true"></span>'
+            . Text::_('PLG_QUANTUMMANAGERCONFIG_BUTTON_EXPORT') . '</a>';
+        $toolbar->appendButton('Custom', $button, 'quantum-config-button-position');
+
+
+        $button = '<input type="file" name="importjson" style="display: none"><button data-element="' . $element . '" class="btn btn-small btn-import">'
+            . '<span class="icon-upload" aria-hidden="true"></span>'
+            . Text::_('PLG_QUANTUMMANAGERCONFIG_BUTTON_IMPORT') . '</button>';
+        $toolbar->appendButton('Custom', $button, 'quantum-config-button-position');
+
+    }
+
+
+    /**
+     * Ajax for import/export
+     *
+     * @throws Exception
+     * @since version
+     */
+    public function onAjaxQuantummanagerconfig()
+    {
+        $admin = $this->app->isClient('administrator');
+
+        if(!$admin)
+        {
+            return;
+        }
+
+        $task = $this->app->input->get('task');
+
+        if($task === 'export')
+        {
+            $this->export();
+        }
+
+        if($task === 'import')
+        {
+            $this->import();
+        }
+
+    }
+
+
+    /**
+     * Check element from list
+     *
+     * @param $element_check
+     *
+     *
+     * @since version
+     */
+    private function checkElement($element_check)
+    {
+        $find = false;
+
+        foreach ($this->elements as $element)
+        {
+            if($element['element'] === $element_check)
+            {
+                $find = true;
+            }
+        }
+
+        if(!$find)
+        {
+            $this->app->close(401);
+        }
+
+    }
+
+
+    /**
+     * Export params com_quantummanager
+     *
+     * @throws Exception
+     */
+    private function export()
+    {
+        $app = Factory::getApplication();
+        $input = $this->app->input;
+        $element = $this->app->input->get('element');
+
+        $this->checkElement($element);
+
+        $table = Table::getInstance('extension');
+        $table->load(['element' => $element]);
+
+        $params = new Registry($table->params);
+        $file = 'export_' . $element . '.json';
+
+        $this->app->setHeader('Content-Disposition', 'attachment; filename=' . basename($file));
+        $this->app->setHeader('Content-Transfer-Encoding', 'binary');
+        $this->app->setHeader('Expires', '0');
+        $this->app->setHeader('Cache-Control', 'must-revalidate, post-check=0, pre-check=0');
+        $this->app->setHeader('Pragma', 'public');
+        $this->app->setHeader('Content-Length', filesize($file));
+        $this->app->sendHeaders();
+
+        ob_clean();
+        flush();
+        echo json_encode($params);
+
+        $this->app->close();
+    }
+
+
+    /**
+     * Import params for com_quantummanager
+     *
+     * @throws Exception
+     * @since version
+     */
+    private function import()
+    {
+        $input = $this->app->input;
+        $files = $input->files->getArray();
+        $element = $this->app->input->get('element');
+
+        $this->checkElement($element);
+
+
+        if(isset($files['params']))
+        {
+
+            if($files['params']['error'] === 0)
+            {
+                $table = Table::getInstance('extension');
+                $table->load(['element' => $element]);
+                $params_new = file_get_contents($files['params']['tmp_name']);
+
+                if(!is_array(json_decode($params_new, JSON_OBJECT_AS_ARRAY)))
+                {
+                    $this->app->enqueueMessage('PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_FILE_UPLOAD', 'error');
+                    return;
+                }
+
+                $params = new Registry($table->params);
+                $params->merge(new Registry($params_new));
+                $table->bind(['params' => $params->toString()]);
+
+                if (!$table->check())
+                {
+                    $this->app->enqueueMessage('PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_DATABASE', 'error');
+                    return;
+                }
+
+                if (!$table->store())
+                {
+                    $this->app->enqueueMessage('PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_DATABASE', 'error');
+                    return;
+                }
+
+                JLoader::register('QuantummanagerHelper', JPATH_SITE . '/administrator/components/com_quantummanager/helpers/quantummanager.php');
+                QuantummanagerHelper::cleanCache('_system', 0);
+                QuantummanagerHelper::cleanCache('_system', 1);
+
+                $this->app->enqueueMessage('PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_UPLOAD_SUCCESS', 'success');
+            }
+            else
+            {
+                $this->app->enqueueMessage('PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_FILE_UPLOAD', 'error');
+            }
+
+        }
+        else
+        {
+            $this->app->enqueueMessage('PLG_QUANTUMMANAGERCONFIG_IMPORTEXPORT_ERROR_FILE_NOTFOUND', 'error');
+        }
+
+    }
+
+
+
+}

plugins/system/quantummanagerconfig/quantummanagerconfig.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<extension version="3.8" type="plugin" group="system" method="upgrade">
+    <name>PLG_QUANTUMMANAGERCONFIG</name>
+    <creationDate>3.08.2020</creationDate>
+    <version>1.1</version>
+    <author>Tsymbal</author>
+    <authorEmail>cymbal@delo-design.ru</authorEmail>
+    <authorUrl>https://www.norrnext.com</authorUrl>
+    <copyright>Copyright © 2019 Delo Design &amp; NorrNext. All rights reserved.</copyright>
+    <license>GNU General Public License version 3 or later; see license.txt</license>
+    <description>PLG_QUANTUMMANAGERCONFIG_XML_DESCRIPTION</description>
+
+    <scriptfile>script.php</scriptfile>
+
+    <languages folder="language">
+        <language tag="en-GB">en-GB/en-GB.plg_system_quantummanagerconfig.ini</language>
+        <language tag="en-GB">en-GB/en-GB.plg_system_quantummanagerconfig.sys.ini</language>
+        <language tag="ru-RU">ru-RU/ru-RU.plg_system_quantummanagerconfig.ini</language>
+        <language tag="ru-RU">ru-RU/ru-RU.plg_system_quantummanagerconfig.sys.ini</language>
+    </languages>
+
+    <media folder="media" destination="plg_system_quantummanagerconfig">
+        <folder>js</folder>
+    </media>
+
+    <files>
+        <filename plugin="quantummanagerconfig">quantummanagerconfig.php</filename>
+        <folder>language</folder>
+    </files>
+
+</extension>

plugins/system/quantummanagerconfig/script.php

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+<?php
+/**
+ * @package    quantumyoothemepro
+ *
+ * @author     tsymb <your@email.com>
+ * @copyright  A copyright
+ * @license    GNU General Public License version 2 or later; see LICENSE.txt
+ * @link       http://your.url.com
+ */
+
+defined('_JEXEC') or die;
+
+use Joomla\CMS\Factory;
+
+/**
+ * Quantumyoothemepro script file.
+ *
+ * @package   quantumyoothemepro
+ * @since     1.0.0
+ */
+class plgSystemQuantummanagerconfigInstallerScript
+{
+
+    /**
+     * Called after any type of action
+     *
+     * @param   string  $route  Which action is happening (install|uninstall|discover_install|update)
+     * @param   JAdapterInstance  $adapter  The object responsible for running this script
+     *
+     * @return  boolean  True on success
+     */
+    public function postflight($route, $adapter) {
+        $db = Factory::getDbo();
+        $query = $db->getQuery( true );
+        $query->update( '#__extensions' )
+            ->set( 'enabled=1' )
+            ->where( 'type=' . $db->q( 'plugin' ) )
+            ->where( 'element=' . $db->q( 'quantummanagerconfig' ) );
+        $db->setQuery( $query )->execute();
+    }
+
+
+}