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Current File : /var/www/html/old/plugins/system/web357framework/Web357Framework/Functions.php
<?php
/* ======================================================
# Web357 Framework for Joomla! - v1.7.7 (Free version)
# -------------------------------------------------------
# For Joomla! CMS
# Author: Web357 (Yiannis Christodoulou)
# Copyright (©) 2009-2019 Web357. All rights reserved.
# License: GNU/GPLv3, http://www.gnu.org/licenses/gpl-3.0.html
# Website: https:/www.web357.com/
# Demo: https://demo.web357.com/joomla/web357framework
# Support: support@web357.com
# Last modified: 11 Jun 2019, 13:11:45
========================================================= */

namespace Web357Framework;

defined('_JEXEC') or die;

use Joomla\Registry\Registry;

class Functions
{
    // Load Web357Framework's language 
    public static function loadWeb357FrameworkLanguage()
    {
         $jlang = \JFactory::getLanguage();
         $jlang->load('plg_system_web357framework', JPATH_ADMINISTRATOR, 'en-GB', true);
         $jlang->load('plg_system_web357framework', JPATH_ADMINISTRATOR, null, true);
    }
   
    // check if url exists
	public static function url_exists($url) 
	{
		if (self::_isCurl())
		{
			// cUrl method
			$ch = curl_init();

			$options = array(
				CURLOPT_URL            => $url,
				CURLOPT_RETURNTRANSFER => true,
				CURLOPT_HEADER         => true,
				CURLOPT_FOLLOWLOCATION => true,
				CURLOPT_ENCODING       => "",
				CURLOPT_SSL_VERIFYPEER => false,
				CURLOPT_AUTOREFERER    => true,
				CURLOPT_CONNECTTIMEOUT => 120,
				CURLOPT_TIMEOUT        => 120,
				CURLOPT_MAXREDIRS      => 10,
			);
			curl_setopt_array( $ch, $options );
			$response = curl_exec($ch); 
			$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); // $retcode >= 400 -> not found, $retcode = 200, found.

			if ($httpCode != 200)
			{
				// The URL does not exist
				return false;

			} else {
				return true;
			}

			curl_close($ch);
		}
		else
		{			
			// default method
			$file_headers = @get_headers($url);
			if($file_headers[0] == 'HTTP/1.1 404 Not Found')
			{
				return false;
			}
			else
			{
				return true;
			}
		}
    }

    /**
	 * Check if the PHP function curl is enabled
	 */
	public static function _isCurl()
	{
		return function_exists('curl_version');
	}
	
	/**
	 * Check if the PHP function allow_url_fopen is enabled
	 */
	protected static function _allowUrlFopen()
	{
		return ini_get('allow_url_fopen');
	}

    /**
     * 
     * Fetch the Web357 API Key from the plugin settings
     *
     * @return string
     */
    public static function getWeb357ApiKey()
    {
		$db = \JFactory::getDBO();
		$query = $db->getQuery(true);
		$query->select($db->quoteName('params'));
		$query->from($db->quoteName('#__extensions'));
		$query->where($db->quoteName('element') . ' = ' . $db->quote('web357framework'));
		$query->where($db->quoteName('folder') . ' = ' . $db->quote('system'));
		$db->setQuery($query);

		try
		{
			$plugin = $db->loadObject();
			$plugin_params = new \JRegistry();
			$plugin_params->loadString($plugin->params);
			return $plugin_params->get('apikey', '');
		}
		catch (RuntimeException $e)
		{
			JError::raiseError(500, $e->getMessage());
		}
    }

	public static function web357ApiKeyCheckerHTMLbox($extension_real_name)
	{
        if (empty($extension_real_name))
        {
			\JFactory::getApplication()->enqueueMessage("Error getting Extension Details. Please, contact us at support@web357.com!", "error");
			return false;
        }

        if (empty(self::getWeb357ApiKey()))
        { ?>
        <div class="alert alert-danger">
            <h3><?php echo \JText::_("W357FRM_DOWNLOAD_KEY_MISSING") ?></h3>
                <p>
                <span class="icon-key" aria-hidden="true"></span> 
                <?php echo sprintf(\JText::_("W357FRM_DOWNLOAD_KEY_MISSING_DESC"), "<b>".\JText::_($extension_real_name)."</b>"); ?>
                <?php echo \JText::_("W357FRM_DOWNLOAD_KEY_MISSING_FIND_APIKEY_AT_WEB357COM") ?>
                </p>

                <p><a class="btn btn-small btn-success" href="<?php echo \JURI::base() ?>index.php?option=com_plugins&view=plugins&filter[search]=Web357%20Framework">
                
                <?php echo \JText::_("W357FRM_DOWNLOAD_KEY_UPDATE_BTN")?>
            </a>
            </p>
        </div>
        <?php 
        }
    }

    /**
     *  Get the HTML Product Information Table for Control Panel at the Backend
     *
     *  @param  string  $extension (e.g. plg_system_web357framework, com_test)
     *  @param  string  $extension_real_name  (e.g. Fix 404 Error Links)
     *
     *  @return  string
     */
    public static function controlPanelProductInfoHTMLTable($extension, $extension_real_name)
    {
        if (empty($extension) || empty($extension_real_name))
        {
			\JFactory::getApplication()->enqueueMessage("Error getting Product Details. Please, contact us at support@web357.com!", "error");
			return false;
        }

        /**
         *  Get extension details from the json file
         */
        $json_file = JPATH_PLUGINS . DIRECTORY_SEPARATOR . "system" . DIRECTORY_SEPARATOR . "web357framework" . DIRECTORY_SEPARATOR . "elements" . DIRECTORY_SEPARATOR . "assets" . DIRECTORY_SEPARATOR . "json" . DIRECTORY_SEPARATOR . "web357-items.json";
        $json_data = file_get_contents($json_file);
        $data = json_decode($json_data);

        $extension_name = preg_replace('/(plg_system_|plg_authentication_|plg_ajax_|plg_k2_|com_|mod_)/', '', $extension); // e.g. fix404errorlinks, or monthlyarchive
        if (!isset($data->$extension_name))
        {
            \JFactory::getApplication()->enqueueMessage("Error getting Product Details. Please, contact us at support@web357.com!", "error");
			return false;
        }

        // get extension details from json file
        $item = $data->$extension_name;
        $extension_type = str_replace('_', ' ', $item->extension_type);
        $product_image = (str_replace('/administrator', '', \JURI::base())).'media/plg_system_web357framework/images/joomla-extensions/'.$extension_name.'.png';

        ?>
        <div class="container-fluid">
            <div class="row-fluid">
                <span class="w357-col-span span3">
                    <div>
                        <a href="<?php echo $item->more_info_url; ?>" target="_blank" alt="<?php echo $extension_real_name; ?>">
                            <img src="<?php echo $product_image; ?>">
                        </a>
                    </div>
                </span>
                <span class="w357-col-span span9">
                    <p style="margin: 30px 0 20px 0;"><?php echo $item->description; ?></p>
                    <div class="w357-product-info-buttons">
                        <a href="<?php echo $item->live_demo_url; ?>" class="btn btn-primary" target="_blank">View Demo</a>
                        <a href="<?php echo $item->more_info_url; ?>" class="btn btn-success" target="_blank">More Details</a>
                        <a href="<?php echo $item->documentation_url; ?>" class="btn btn-warning" target="_blank">Documentation</a>
                        <a href="<?php echo $item->changelog_url; ?>" class="btn btn-info" target="_blank">Changelog</a>
                        <a href="<?php echo $item->support_url; ?>" class="btn btn-danger" target="_blank">Support</a>
                    </div>
                </span>
            </div>
        </div>
        <?php
    }
    
    /**
     *  Get the extension details (version)
     *
     *  @param  string  $extension (e.g. plg_system_web357framework, com_test)
     *
     *  @return  array (current_version, current_creationDate, latest_version, latest_creationDate)
     */
    public static function getExtensionDetails($extension)
    {
        $extension_clean_name = preg_replace('/(plg_system_|plg_authentication_|plg_ajax_|plg_k2_|com_|mod_)/', '', $extension);

        if (strpos($extension, 'plg_system_') !== false) 
        {
            $extension_type = 'plugin';
            $plugin_type = 'system';
        }
        elseif (strpos($extension, 'plg_authentication_') !== false) 
        {
            $extension_type = 'plugin';
            $plugin_type = 'authentication';
        }
        elseif (strpos($extension, 'plg_content_') !== false) 
        {
            $extension_type = 'plugin';
            $plugin_type = 'content';
        }
        elseif (strpos($extension, 'mod_') !== false) 
        {
            $extension_type = 'module';
            $plugin_type = '';
        }
        elseif (strpos($extension, 'com_') !== false) 
        {
            $extension_type = 'component';
            $plugin_type = '';
        }

        if (empty($extension) || empty($extension_type))
        {
			\JFactory::getApplication()->enqueueMessage("Error getting Extension Details. Please, contact us at support@web357.com!", "error");
			return false;
        }
   
        // Retrieving request data using JInput
		$jinput = \JFactory::getApplication()->input;

		// get current extension's version & creationDate from database
		$db = \JFactory::getDBO();
		$query = "SELECT manifest_cache "
		."FROM #__extensions "
		."WHERE element = '".$extension."' and type = '".$extension_type."' "
		;
		$db->setQuery($query);
		$db->execute();
		$manifest = json_decode( $db->loadResult(), true );
		$current_version = (!empty($manifest['version'])) ? $manifest['version'] : '1.0.0';
        $current_creationDate = (!empty($manifest['creationDate'])) ? $manifest['creationDate'] : '10 Oct 1985';
        
        if (empty($current_version) || empty($current_creationDate))
        {
			\JFactory::getApplication()->enqueueMessage("Error retrieving extension details from database. Please, contact us at support@web357.com!", "error");
			return false;
        }

        // Get web357 releases json content
		$web357_releases_json_url = 'http://api.web357.com/web357api/get/web357/get-web357-extension-latest-version/?extension='.urlencode($extension_clean_name);
		
		$web357_releases_json = '';
		if (self::url_exists($web357_releases_json_url))
		{
			if (self::_isCurl()) // check if extension=php_curl.dll is enabled from php.ini
			{
				// cUrl method
				$ch = curl_init();

				$options = array(
					CURLOPT_SSL_VERIFYPEER => false, // Disable SSL verification
					CURLOPT_RETURNTRANSFER => true, // // Will return the response, if false it print the response
					CURLOPT_URL            => $web357_releases_json_url, // Set the url
					CURLOPT_CONNECTTIMEOUT => 120,
					CURLOPT_TIMEOUT        => 120,
					CURLOPT_MAXREDIRS      => 10,
				);

				curl_setopt_array( $ch, $options ); // Add options to array
				
				$web357_releases_json = curl_exec($ch); // Execute

				curl_close($ch); // Closing

				// get data in a json
				$web357_releases_json = json_decode($web357_releases_json);

			}
			elseif (self::_allowUrlFopen())
			{
				$web357_releases_json = file_get_contents($web357_releases_json_url);
				$web357_releases_json = json_decode($web357_releases_json);
			}
		}

		// Get the latest version of extension, from Web357.com
		$latest_version = $current_version;
		$latest_creationDate = $current_creationDate;

		if (!empty($web357_releases_json))
		{
			if ($web357_releases_json->extension == $extension_clean_name)
			{
				$latest_version = $web357_releases_json->version;
				$latest_creationDate = date("d-M-Y", strtotime($web357_releases_json->date));
			}
        }

        $extension_details = new \stdClass();
        $extension_details->current_version = $current_version;
        $extension_details->current_creationDate = $current_creationDate;
        $extension_details->latest_version = $latest_version;
        $extension_details->latest_creationDate = $latest_creationDate;
        $extension_details->extension_type = $extension_type;
        $extension_details->plugin_type = $plugin_type;
        
        return $extension_details;
    }

    /**
     *  Show Footer
     *
     *  @param  string  $extension (e.g. plg_system_web357framework, com_test)
     *  @param  string  $extension_real_name  (e.g. Fix 404 Error Links)
     *
     *  @return  array
     */
    public static function showFooter($extension, $extension_real_name)
    {
        if (empty($extension) || empty($extension_real_name))
        {
			\JFactory::getApplication()->enqueueMessage("Error getting Extension Details. Please, contact us at support@web357.com!", "error");
			return false;
        }

        $extension_details = self::getExtensionDetails($extension);
        $extension_clean_name = preg_replace('/(plg_system_|plg_authentication_|plg_ajax_|plg_k2_|com_|mod_)/', '', $extension);
        
        // Show Footer
        $show_copyright = true;
        if ($extension_details->extension_type == 'component')
        {
            $comParams = \JComponentHelper::getParams($extension);
            if ($comParams)
            {
                $show_copyright = $comParams->get('show_copyright', 1);
            }
        }

        $juri_base = str_replace('/administrator', '', \JURI::base());
        $pro_link = 'https://www.web357.com/pricing?extension='.$extension_clean_name.'&utm_source=CLIENT&utm_medium=CLIENT-ProLink-Backend-Footer-Web357&utm_content=CLIENT-ProLink-Backend-Footer&utm_campaign=prolinkbackendfooter';
        ?>
        <div class="center" style="margin-top: 50px;">
            
            <div class="alert alert-default w357-free-version-alert">
                This is the <strong>FREE</strong> version of <strong><?php echo $extension_real_name; ?></strong>.<br>For more functionality you can purchase the PRO version.<br><br>
                <a href="<?php echo $pro_link; ?>" target="_blank" class="btn btn-small btn-danger"> <span class="icon-thumbs-up"></span> Upgrade to Pro!</a>
            </div>
            
            <div class="w357-footer">

                <div class="w357-footer-extension">
                    <img src="<?php echo $juri_base; ?>media/plg_system_web357framework/images/<?php echo $extension_clean_name; ?>.png" width="24" height="24" alt="<?php echo $extension_real_name; ?>">
                    <?php echo $extension_real_name; ?> (Free version) v<?php echo $extension_details->current_version; ?> (<?php echo $extension_details->current_creationDate; ?>)
                </div>
            
                <?php if ($show_copyright): ?>
                    <div class="w357-footer-logo">
                        Powered by <a href="https://www.web357.com" target="_blank">
                        <img src="<?php echo $juri_base; ?>media/plg_system_web357framework/images/web357-logo.png" width="97" height="25" alt="Web357">
                        </a>
                    </div>
                    
                    <div class="w357-footer-copyright">Copyright &copy; <?php echo date('Y'); ?> Web357 - All Rights Reserved.</div>
                <?php endif; ?>

            </div>
        </div>
        <?php
    }

    /**
     *  Update Checker
     *
     *  @param  string  $extension (e.g. plg_system_web357framework, com_test)
     *  @param  string  $extension_real_name  (e.g. Fix 404 Error Links)
     *
     *  @return  array
     */
    public static function updateChecker($extension, $extension_real_name)
    {
        if (empty($extension) || empty($extension_real_name))
        {
			\JFactory::getApplication()->enqueueMessage("Error getting Extension Details. Please, contact us at support@web357.com!", "error");
			return false;
        }
        
        $extension_details = self::getExtensionDetails($extension);

        $current_version = preg_replace('/[A-Za-z]/', '', $extension_details->current_version);
        $latest_version = preg_replace('/[A-Za-z]/', '', $extension_details->latest_version);

		if (version_compare($current_version, $latest_version, 'lt'))
        {
            // latest's release URL
		    $real_ext_name_with_dashes = \JText::_($extension_real_name);
            $real_ext_name_with_dashes = str_replace(" (Pro version)", "", $real_ext_name_with_dashes);
            $real_ext_name_with_dashes = str_replace(" (Pro version)", "", $real_ext_name_with_dashes);
            $real_ext_name_with_dashes = str_replace(" (Free version)", "", $real_ext_name_with_dashes);
            $real_ext_name_with_dashes = str_replace(" PRO", "", $real_ext_name_with_dashes);
            $real_ext_name_with_dashes = str_replace(" FREE", "", $real_ext_name_with_dashes);
            $real_ext_name_with_dashes = str_replace("System - ", "", $real_ext_name_with_dashes);
            $real_ext_name_with_dashes = str_replace("Authentication - ", "", $real_ext_name_with_dashes);
            if ($real_ext_name_with_dashes != 'Web357 Framework')
            {
                $real_ext_name_with_dashes = str_replace("Web357 ", "", $real_ext_name_with_dashes);
            }
            $real_ext_name_with_dashes = strtolower(str_replace(" ", "-", $real_ext_name_with_dashes));
            $latest_version_with_dashes = strtolower(str_replace(".", "-", $extension_details->latest_version));
            $latest_release_url = 'https://www.web357.com/blog/releases/'.$real_ext_name_with_dashes.'-v'.$latest_version_with_dashes.'-released';
            ?>

            <div class="alert alert-danger">
                <h3><?php echo \JText::_("New version available!") ?></h3>
                <p>
                    <span class="icon-notification"></span> An updated version of <strong><?php echo $extension_real_name; ?> (v<?php echo $extension_details->latest_version; ?>)</strong> is available for installation.
                <br><br>
                <a href="index.php?option=com_installer&view=update" class="btn btn-default btn-success"> <span class="icon-thumbs-up"></span> Update to v<?php echo $extension_details->latest_version; ?></a> 
                <a href="<?php echo $latest_release_url; ?>" target="_blank" class="btn btn-default btn-default"> <span class="icon-info"></span> More Info</a>
                </p>
            </div>
            <?php
        }
    }

    /**
     *  Get Changelog's URL
     *
     *  @param  string  $extension (e.g. plg_system_web357framework, com_test)
     *  @param  string  $extension_real_name  (e.g. Fix 404 Error Links)
     *
     *  @return  string
     */
    public static function getChangelogURL($extension_real_name)
    {
        if (empty($extension_real_name))
        {
			\JFactory::getApplication()->enqueueMessage("Error getting Extension Details. Please, contact us at support@web357.com!", "error");
			return false;
        }
        
        $real_ext_name_with_dashes = \JText::_($extension_real_name);
        $real_ext_name_with_dashes = str_replace(" (Pro version)", "", $real_ext_name_with_dashes);
        $real_ext_name_with_dashes = str_replace(" (Pro version)", "", $real_ext_name_with_dashes);
        $real_ext_name_with_dashes = str_replace(" (Free version)", "", $real_ext_name_with_dashes);
        $real_ext_name_with_dashes = str_replace(" PRO", "", $real_ext_name_with_dashes);
        $real_ext_name_with_dashes = str_replace(" FREE", "", $real_ext_name_with_dashes);
        $real_ext_name_with_dashes = str_replace("System - ", "", $real_ext_name_with_dashes);
        $real_ext_name_with_dashes = str_replace("Authentication - ", "", $real_ext_name_with_dashes);
        if ($real_ext_name_with_dashes != 'Web357 Framework')
        {
            $real_ext_name_with_dashes = str_replace("Web357 ", "", $real_ext_name_with_dashes);
        }
        $real_ext_name_with_dashes = strtolower(str_replace(" ", "-", $real_ext_name_with_dashes));
		$changelog_url = 'https://www.web357.com/product/'.$real_ext_name_with_dashes.'#changelog';  // e.g. support-hours
        
        return $changelog_url;
    }

    /**
     *  Shortener URL
     *  It gets only the first 10 characters and the last 10 characters of URL that has over 20 characters
     *
     *  @param  string  $url
     *  @param  int  $max_char
     *
     *  @return  string
     */
    public static function shortenURL($url, $max_char = 60)
    {
        if (strlen($url) > $max_char)
        {
            $short_url = substr($url, 0, ($max_char/2)) . '...' .substr($url, strlen($url)-($max_char/2));
            return $short_url;
        }

        return $url;
    }
}

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