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Current File : /var/www/web032/htdocs/cms/administrator/components/com_admin/models/sysinfo.php
<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_admin
 *
 * @copyright   (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

use Joomla\Registry\Registry;

/**
 * Model for the display of system information.
 *
 * @since  1.6
 */
class AdminModelSysInfo extends JModelLegacy
{
	/**
	 * Some PHP settings
	 *
	 * @var    array
	 * @since  1.6
	 */
	protected $php_settings = array();

	/**
	 * Config values
	 *
	 * @var    array
	 * @since  1.6
	 */
	protected $config = array();

	/**
	 * Some system values
	 *
	 * @var    array
	 * @since  1.6
	 */
	protected $info = array();

	/**
	 * PHP info
	 *
	 * @var    string
	 * @since  1.6
	 */
	protected $php_info = null;

	/**
	 * Array containing the phpinfo() data.
	 *
	 * @var    array
	 *
	 * @since  3.5
	 */
	protected $phpInfoArray;

	/**
	 * Private/critical data that we don't want to share
	 *
	 * @var    array
	 *
	 * @since  3.5
	 */
	protected $privateSettings = array(
		'phpInfoArray' => array(
			'CONTEXT_DOCUMENT_ROOT',
			'Cookie',
			'DOCUMENT_ROOT',
			'extension_dir',
			'error_log',
			'Host',
			'HTTP_COOKIE',
			'HTTP_HOST',
			'HTTP_ORIGIN',
			'HTTP_REFERER',
			'HTTP Request',
			'include_path',
			'mysql.default_socket',
			'MYSQL_SOCKET',
			'MYSQL_INCLUDE',
			'MYSQL_LIBS',
			'mysqli.default_socket',
			'MYSQLI_SOCKET',
			'PATH',
			'Path to sendmail',
			'pdo_mysql.default_socket',
			'Referer',
			'REMOTE_ADDR',
			'SCRIPT_FILENAME',
			'sendmail_path',
			'SERVER_ADDR',
			'SERVER_ADMIN',
			'Server Administrator',
			'SERVER_NAME',
			'Server Root',
			'session.name',
			'session.save_path',
			'upload_tmp_dir',
			'User/Group',
			'open_basedir',
		),
		'other' => array(
			'db',
			'dbprefix',
			'fromname',
			'live_site',
			'log_path',
			'mailfrom',
			'memcache_server_host',
			'memcached_server_host',
			'open_basedir',
			'Origin',
			'proxy_host',
			'proxy_user',
			'proxy_pass',
			'redis_server_host',
			'redis_server_auth',
			'secret',
			'sendmail',
			'session.save_path',
			'session_memcache_server_host',
			'session_memcached_server_host',
			'session_redis_server_host',
			'session_redis_server_auth',
			'sitename',
			'smtphost',
			'tmp_path',
			'open_basedir',
		)
	);

	/**
	 * System values that can be "safely" shared
	 *
	 * @var    array
	 *
	 * @since  3.5
	 */
	protected $safeData;

	/**
	 * Information about writable state of directories
	 *
	 * @var    array
	 * @since  1.6
	 */
	protected $directories = array();

	/**
	 * The current editor.
	 *
	 * @var    string
	 * @since  1.6
	 */
	protected $editor = null;

	/**
	 * Remove sections of data marked as private in the privateSettings
	 *
	 * @param   array   $dataArray  Array with data that may contain private information
	 * @param   string  $dataType   Type of data to search for a specific section in the privateSettings array
	 *
	 * @return  array
	 *
	 * @since   3.5
	 */
	protected function cleanPrivateData($dataArray, $dataType = 'other')
	{
		$dataType = isset($this->privateSettings[$dataType]) ? $dataType : 'other';

		$privateSettings = $this->privateSettings[$dataType];

		if (!$privateSettings)
		{
			return $dataArray;
		}

		foreach ($dataArray as $section => $values)
		{
			if (is_array($values))
			{
				$dataArray[$section] = $this->cleanPrivateData($values, $dataType);
			}

			if (in_array($section, $privateSettings, true))
			{
				$dataArray[$section] = $this->cleanSectionPrivateData($values);
			}
		}

		return $dataArray;
	}

	/**
	 * Obfuscate section values
	 *
	 * @param   mixed  $sectionValues  Section data
	 *
	 * @return  mixed
	 *
	 * @since   3.5
	 */
	protected function cleanSectionPrivateData($sectionValues)
	{
		if (!is_array($sectionValues))
		{
			if (strstr($sectionValues, JPATH_ROOT))
			{
				$sectionValues = 'xxxxxx';
			}

			return strlen($sectionValues) ? 'xxxxxx' : '';
		}

		foreach ($sectionValues as $setting => $value)
		{
			$sectionValues[$setting] = strlen($value) ? 'xxxxxx' : '';
		}

		return $sectionValues;
	}

	/**
	 * Method to get the PHP settings
	 *
	 * @return  array  Some PHP settings
	 *
	 * @since   1.6
	 */
	public function &getPhpSettings()
	{
		if (!empty($this->php_settings))
		{
			return $this->php_settings;
		}

		$this->php_settings = array(
			'safe_mode'          => ini_get('safe_mode') == '1',
			'display_errors'     => ini_get('display_errors') == '1',
			'short_open_tag'     => ini_get('short_open_tag') == '1',
			'file_uploads'       => ini_get('file_uploads') == '1',
			'magic_quotes_gpc'   => ini_get('magic_quotes_gpc') == '1',
			'register_globals'   => ini_get('register_globals') == '1',
			'output_buffering'   => (int) ini_get('output_buffering') !== 0,
			'open_basedir'       => ini_get('open_basedir'),
			'session.save_path'  => ini_get('session.save_path'),
			'session.auto_start' => ini_get('session.auto_start'),
			'disable_functions'  => ini_get('disable_functions'),
			'xml'                => extension_loaded('xml'),
			'zlib'               => extension_loaded('zlib'),
			'zip'                => function_exists('zip_open') && function_exists('zip_read'),
			'mbstring'           => extension_loaded('mbstring'),
			'iconv'              => function_exists('iconv'),
			'max_input_vars'     => ini_get('max_input_vars'),
		);

		return $this->php_settings;
	}

	/**
	 * Method to get the config
	 *
	 * @return  array  config values
	 *
	 * @since   1.6
	 */
	public function &getConfig()
	{
		if (!empty($this->config))
		{
			return $this->config;
		}

		$registry = new Registry(new JConfig);
		$this->config = $registry->toArray();
		$hidden = array(
			'host', 'user', 'password', 'ftp_user', 'ftp_pass',
			'smtpuser', 'smtppass', 'redis_server_auth', 'session_redis_server_auth',
			'proxy_user', 'proxy_pass', 'secret'
		);

		foreach ($hidden as $key)
		{
			$this->config[$key] = 'xxxxxx';
		}

		return $this->config;
	}

	/**
	 * Method to get the system information
	 *
	 * @return  array  System information values
	 *
	 * @since   1.6
	 */
	public function &getInfo()
	{
		if (!empty($this->info))
		{
			return $this->info;
		}

		$version  = new JVersion;
		$platform = new JPlatform;
		$db       = $this->getDbo();

		$this->info = array(
			'php'                   => php_uname(),
			'dbserver'              => $db->getServerType(),
			'dbversion'             => $db->getVersion(),
			'dbcollation'           => $db->getCollation(),
			'dbconnectioncollation' => $db->getConnectionCollation(),
			'phpversion'            => phpversion(),
			'server'                => isset($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : getenv('SERVER_SOFTWARE'),
			'sapi_name'             => php_sapi_name(),
			'version'               => $version->getLongVersion(),
			'platform'              => $platform->getLongVersion(),
			'useragent'             => isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '',
		);

		return $this->info;
	}

	/**
	 * Check if the phpinfo function is enabled
	 *
	 * @return  boolean True if enabled
	 *
	 * @since   3.4.1
	 */
	public function phpinfoEnabled()
	{
		return !in_array('phpinfo', explode(',', ini_get('disable_functions')));
	}

	/**
	 * Method to get filter data from the model
	 *
	 * @param   string  $dataType  Type of data to get safely
	 * @param   bool    $public    If true no sensitive information will be removed
	 *
	 * @return  array
	 *
	 * @since   3.5
	 */
	public function getSafeData($dataType, $public = true)
	{
		if (isset($this->safeData[$dataType]))
		{
			return $this->safeData[$dataType];
		}

		$methodName = 'get' . ucfirst($dataType);

		if (!method_exists($this, $methodName))
		{
			return array();
		}

		$data = $this->$methodName($public);

		$this->safeData[$dataType] = $this->cleanPrivateData($data, $dataType);

		return $this->safeData[$dataType];
	}

	/**
	 * Method to get the PHP info
	 *
	 * @return  string  PHP info
	 *
	 * @since   1.6
	 */
	public function &getPHPInfo()
	{
		if (!$this->phpinfoEnabled())
		{
			$this->php_info = JText::_('COM_ADMIN_PHPINFO_DISABLED');

			return $this->php_info;
		}

		if (!is_null($this->php_info))
		{
			return $this->php_info;
		}

		ob_start();
		date_default_timezone_set('UTC');
		phpinfo(INFO_GENERAL | INFO_CONFIGURATION | INFO_MODULES);
		$phpInfo = ob_get_contents();
		ob_end_clean();
		preg_match_all('#<body[^>]*>(.*)</body>#siU', $phpInfo, $output);
		$output = preg_replace('#<table[^>]*>#', '<table class="table table-striped adminlist">', $output[1][0]);
		$output = preg_replace('#(\w),(\w)#', '\1, \2', $output);
		$output = preg_replace('#<hr />#', '', $output);
		$output = str_replace('<div class="center">', '', $output);
		$output = preg_replace('#<tr class="h">(.*)<\/tr>#', '<thead><tr class="h">$1</tr></thead><tbody>', $output);
		$output = str_replace('</table>', '</tbody></table>', $output);
		$output = str_replace('</div>', '', $output);
		$this->php_info = $output;

		return $this->php_info;
	}

	/**
	 * Get phpinfo() output as array
	 *
	 * @return  array
	 *
	 * @since   3.5
	 */
	public function getPhpInfoArray()
	{
		// Already cached
		if (null !== $this->phpInfoArray)
		{
			return $this->phpInfoArray;
		}

		$phpInfo = $this->getPhpInfo();

		$this->phpInfoArray = $this->parsePhpInfo($phpInfo);

		return $this->phpInfoArray;
	}

	/**
	 * Method to get a list of installed extensions
	 *
	 * @return array installed extensions
	 *
	 * @since  3.5
	 */
	public function getExtensions()
	{
		$installed = array();
		$db = JFactory::getDbo();
		$query = $db->getQuery(true)
			->select('*')
			->from($db->qn('#__extensions'));
		$db->setQuery($query);

		try
		{
			$extensions = $db->loadObjectList();
		}
		catch (Exception $e)
		{
			try
			{
				JLog::add(JText::sprintf('JLIB_DATABASE_ERROR_FUNCTION_FAILED', $e->getCode(), $e->getMessage()), JLog::WARNING, 'jerror');
			}
			catch (RuntimeException $exception)
			{
				JFactory::getApplication()->enqueueMessage(
					JText::sprintf('JLIB_DATABASE_ERROR_FUNCTION_FAILED', $e->getCode(), $e->getMessage()),
					'warning'
				);
			}

			return $installed;
		}

		if (empty($extensions))
		{
			return $installed;
		}

		foreach ($extensions as $extension)
		{
			if (strlen($extension->name) == 0)
			{
				continue;
			}

			$installed[$extension->name] = array(
				'name'         => $extension->name,
				'type'         => $extension->type,
				'state'        => $extension->enabled ? JText::_('JENABLED') : JText::_('JDISABLED'),
				'author'       => 'unknown',
				'version'      => 'unknown',
				'creationDate' => 'unknown',
				'authorUrl'    => 'unknown',
			);

			$manifest = new Registry($extension->manifest_cache);

			$extraData = array(
				'author'       => $manifest->get('author', ''),
				'version'      => $manifest->get('version', ''),
				'creationDate' => $manifest->get('creationDate', ''),
				'authorUrl'    => $manifest->get('authorUrl', '')
			);

			$installed[$extension->name] = array_merge($installed[$extension->name], $extraData);
		}

		return $installed;
	}

	/**
	 * Method to get the directory states
	 *
	 * @param   bool  $public  If true no information is going to be removed
	 *
	 * @return  array States of directories
	 *
	 * @since   1.6
	 */
	public function getDirectory($public = false)
	{
		if (!empty($this->directories))
		{
			return $this->directories;
		}

		$this->directories = array();

		$registry = JFactory::getConfig();
		$cparams  = JComponentHelper::getParams('com_media');

		$this->addDirectory('administrator/components', JPATH_ADMINISTRATOR . '/components');
		$this->addDirectory('administrator/language', JPATH_ADMINISTRATOR . '/language');

		// List all admin languages
		$admin_langs = new DirectoryIterator(JPATH_ADMINISTRATOR . '/language');

		foreach ($admin_langs as $folder)
		{
			if ($folder->isDot() || !$folder->isDir())
			{
				continue;
			}

			$this->addDirectory(
				'administrator/language/' . $folder->getFilename(),
				JPATH_ADMINISTRATOR . '/language/' . $folder->getFilename()
			);
		}

		// List all manifests folders
		$manifests = new DirectoryIterator(JPATH_ADMINISTRATOR . '/manifests');

		foreach ($manifests as $folder)
		{
			if ($folder->isDot() || !$folder->isDir())
			{
				continue;
			}

			$this->addDirectory(
				'administrator/manifests/' . $folder->getFilename(),
				JPATH_ADMINISTRATOR . '/manifests/' . $folder->getFilename()
			);
		}

		$this->addDirectory('administrator/modules', JPATH_ADMINISTRATOR . '/modules');
		$this->addDirectory('administrator/templates', JPATH_THEMES);

		$this->addDirectory('components', JPATH_SITE . '/components');

		$this->addDirectory($cparams->get('image_path'), JPATH_SITE . '/' . $cparams->get('image_path'));

		// List all images folders
		$image_folders = new DirectoryIterator(JPATH_SITE . '/' . $cparams->get('image_path'));

		foreach ($image_folders as $folder)
		{
			if ($folder->isDot() || !$folder->isDir())
			{
				continue;
			}

			$this->addDirectory(
				'images/' . $folder->getFilename(),
				JPATH_SITE . '/' . $cparams->get('image_path') . '/' . $folder->getFilename()
			);
		}

		$this->addDirectory('language', JPATH_SITE . '/language');

		// List all site languages
		$site_langs = new DirectoryIterator(JPATH_SITE . '/language');

		foreach ($site_langs as $folder)
		{
			if ($folder->isDot() || !$folder->isDir())
			{
				continue;
			}

			$this->addDirectory('language/' . $folder->getFilename(), JPATH_SITE . '/language/' . $folder->getFilename());
		}

		$this->addDirectory('libraries', JPATH_LIBRARIES);

		$this->addDirectory('media', JPATH_SITE . '/media');
		$this->addDirectory('modules', JPATH_SITE . '/modules');
		$this->addDirectory('plugins', JPATH_PLUGINS);

		$plugin_groups = new DirectoryIterator(JPATH_SITE . '/plugins');

		foreach ($plugin_groups as $folder)
		{
			if ($folder->isDot() || !$folder->isDir())
			{
				continue;
			}

			$this->addDirectory('plugins/' . $folder->getFilename(), JPATH_PLUGINS . '/' . $folder->getFilename());
		}

		$this->addDirectory('templates', JPATH_SITE . '/templates');
		$this->addDirectory('configuration.php', JPATH_CONFIGURATION . '/configuration.php');

		// Is there a cache path in configuration.php?
		if ($cache_path = trim($registry->get('cache_path', '')))
		{
			// Frontend and backend use same directory for caching.
			$this->addDirectory($cache_path, $cache_path, 'COM_ADMIN_CACHE_DIRECTORY');
		}
		else
		{
			$this->addDirectory('cache', JPATH_SITE . '/cache', 'COM_ADMIN_CACHE_DIRECTORY');
			$this->addDirectory('administrator/cache', JPATH_CACHE, 'COM_ADMIN_CACHE_DIRECTORY');
		}

		if ($public)
		{
			$this->addDirectory(
				'log',
				$registry->get('log_path', JPATH_ADMINISTRATOR . '/logs'),
				'COM_ADMIN_LOG_DIRECTORY'
			);
			$this->addDirectory(
				'tmp',
				$registry->get('tmp_path', JPATH_ROOT . '/tmp'),
				'COM_ADMIN_TEMP_DIRECTORY'
			);
		}
		else
		{
			$this->addDirectory(
				$registry->get('log_path', JPATH_ADMINISTRATOR . '/logs'),
				$registry->get('log_path', JPATH_ADMINISTRATOR . '/logs'),
				'COM_ADMIN_LOG_DIRECTORY'
			);
			$this->addDirectory(
				$registry->get('tmp_path', JPATH_ROOT . '/tmp'),
				$registry->get('tmp_path', JPATH_ROOT . '/tmp'),
				'COM_ADMIN_TEMP_DIRECTORY'
			);
		}

		return $this->directories;
	}

	/**
	 * Method to add a directory
	 *
	 * @param   string  $name     Directory Name
	 * @param   string  $path     Directory path
	 * @param   string  $message  Message
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	private function addDirectory($name, $path, $message = '')
	{
		$this->directories[$name] = array('writable' => is_writable($path), 'message' => $message,);
	}

	/**
	 * Method to get the editor
	 *
	 * @return  string  The default editor
	 *
	 * @note    Has to be removed (it is present in the config...)
	 * @since   1.6
	 */
	public function &getEditor()
	{
		if (!is_null($this->editor))
		{
			return $this->editor;
		}

		$this->editor = JFactory::getConfig()->get('editor');

		return $this->editor;
	}

	/**
	 * Parse phpinfo output into an array
	 * Source https://gist.github.com/sbmzhcn/6255314
	 *
	 * @param   string  $html  Output of phpinfo()
	 *
	 * @return  array
	 *
	 * @since   3.5
	 */
	protected function parsePhpInfo($html)
	{
		$html = strip_tags($html, '<h2><th><td>');
		$html = preg_replace('/<th[^>]*>([^<]+)<\/th>/', '<info>\1</info>', $html);
		$html = preg_replace('/<td[^>]*>([^<]+)<\/td>/', '<info>\1</info>', $html);
		$t = preg_split('/(<h2[^>]*>[^<]+<\/h2>)/', $html, -1, PREG_SPLIT_DELIM_CAPTURE);
		$r = array();
		$count = count($t);
		$p1 = '<info>([^<]+)<\/info>';
		$p2 = '/' . $p1 . '\s*' . $p1 . '\s*' . $p1 . '/';
		$p3 = '/' . $p1 . '\s*' . $p1 . '/';

		for ($i = 1; $i < $count; $i++)
		{
			if (preg_match('/<h2[^>]*>([^<]+)<\/h2>/', $t[$i], $matchs))
			{
				$name = trim($matchs[1]);
				$vals = explode("\n", $t[$i + 1]);

				foreach ($vals AS $val)
				{
					// 3cols
					if (preg_match($p2, $val, $matchs))
					{
						$r[$name][trim($matchs[1])] = array(trim($matchs[2]), trim($matchs[3]),);
					}
					// 2cols
					elseif (preg_match($p3, $val, $matchs))
					{
						$r[$name][trim($matchs[1])] = trim($matchs[2]);
					}
				}
			}
		}

		return $r;
	}
}

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