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<?php /** * Akeeba Engine * The modular PHP5 site backup engine * @copyright Copyright (c)2009-2014 Nicholas K. Dionysopoulos * @license GNU GPL version 3 or, at your option, any later version * @package akeebaengine * / // Protection against direct access defined('AKEEBAENGINE') or die(); if(!defined('DS')) { define('DS',DIRECTORY_SEPARATOR); // Still required by Joomla! :( } /* * Joomla! 2.5 platform class / class AEPlatformJoomla25 extends AEPlatformAbstract { /* @var int Platform class priority / public $priority = 53; public $platformName = 'joomla25'; /* * Performs heuristics to determine if this platform object is the ideal * candidate for the environment Akeeba Engine is running in. * * @return bool / public function isThisPlatform() { // Make sure _JEXEC is defined if(!defined('_JEXEC')) return false; // We need JVERSION to be defined if(!defined('JVERSION')) return false; // Check if JFactory exists if(!class_exists('JFactory')) return false; // Check if JApplication exists $appExists = class_exists('JApplication'); $appExists = $appExists \|\| class_exists('JCli'); $appExists = $appExists \|\| class_exists('JApplicationCli'); if(!$appExists) return false; return version_compare(JVERSION, '2.5.0', 'ge'); } /* * Returns an associative array of stock platform directories * @return array / public function get_stock_directories() { static $stock_directories = array(); if(empty($stock_directories)) { $jreg = JFactory::getConfig(); if(version_compare(JVERSION, '3.0', 'ge')) { $tmpdir = $jreg->get('tmp_path'); } else { $tmpdir = $jreg->getValue('config.tmp_path'); } $stock_directories['[SITEROOT]'] = $this->get_site_root(); $stock_directories['[ROOTPARENT]'] = @realpath($this->get_site_root().'/..'); $stock_directories['[SITETMP]'] = $tmpdir; $stock_directories['[DEFAULT_OUTPUT]'] = $this->get_site_root().'/administrator/components/com_akeeba/backup'; } return $stock_directories; } /* * Returns the absolute path to the site's root * @return string / public function get_site_root() { static $root = null; if( empty($root) \|\| is_null($root) ) { $root = JPATH_ROOT; if(empty($root) \|\| ($root == DIRECTORY_SEPARATOR) \|\| ($root == '/')) { // Try to get the current root in a different way if(function_exists('getcwd')) { $root = getcwd(); } $app = JFactory::getApplication(); if( $app->isAdmin() ) { if(empty($root)) { $root = '../'; } else { $adminPos = strpos($root, 'administrator'); if($adminPos !== false) { $root = substr($root, 0, $adminPos); } else { $root = '../'; } // Degenerate case where $root = 'administrator' // without a leading slash before entering this // if-block if(empty($root)) $root = '../'; } } else { if(empty($root) \|\| ($root == DIRECTORY_SEPARATOR) \|\| ($root == '/') ) { $root = './'; } } } } return $root; } /* * Returns the absolute path to the installer images directory * @return string / public function get_installer_images_path() { return JPATH_ADMINISTRATOR.'/components/com_akeeba/assets/installers'; } /* * Returns the active profile number * @return int / public function get_active_profile() { if( defined('AKEEBA_PROFILE') ) { return AKEEBA_PROFILE; } else { $session = JFactory::getSession(); return $session->get('profile', null, 'akeeba'); } } /* * Returns the selected profile's name. If no ID is specified, the current * profile's name is returned. * @return string / public function get_profile_name($id = null) { if(empty($id)) $id = $this->get_active_profile(); $id = (int)$id; $sql = 'SELECT `description` FROM `#__ak_profiles` WHERE `id` = '.$id; $db = AEFactory::getDatabase( $this->get_platform_database_options() ); $db->setQuery($sql); return $db->loadResult(); } /* * Returns the backup origin * @return string Backup origin: backend\|frontend / public function get_backup_origin() { if(defined('AKEEBA_BACKUP_ORIGIN')) return AKEEBA_BACKUP_ORIGIN; if(JFactory::getApplication()->isAdmin()) { return 'backend'; } else { return 'frontend'; } } /* * Returns a MySQL-formatted timestamp out of the current date * @param string $date[optional] The timestamp to use. Omit to use current timestamp. * @return string / public function get_timestamp_database($date = 'now') { JLoader::import('joomla.utilities.date'); $jdate = new JDate($date); if(version_compare(JVERSION, '3.0', 'ge')) { return $jdate->toSql(); } else { return $jdate->toMySQL(); } } /* * Returns the current timestamp, taking into account any TZ information, * in the format specified by $format. * @param string $format Timestamp format string (standard PHP format string) * @return string / public function get_local_timestamp($format) { JLoader::import('joomla.utilities.date'); $jregistry = JFactory::getConfig(); if(version_compare(JVERSION, '3.0', 'ge')) { $tzDefault = $jregistry->get('offset'); } else { $tzDefault = $jregistry->getValue('config.offset'); } $user = JFactory::getUser(); $tz = $user->getParam('timezone', $tzDefault); $dateNow = new JDate('now', $tz); return $dateNow->format($format, true); } /* * Returns the current host name * @return string / public function get_host() { if(!array_key_exists('REQUEST_METHOD', $_SERVER)) { // Running under CLI if(!class_exists('JURI', true)) { $filename = JPATH_ROOT.'/libraries/joomla/environment/uri.php'; if(file_exists($filename)) { // Joomla! 2.5 require_once $filename; } else { // Joomla! 3.x (and later?) require_once JPATH_ROOT.'/libraries/joomla/uri/uri.php'; } } $url = AEPlatform::getInstance()->get_platform_configuration_option('siteurl',''); $oURI = new JURI($url); } else { // Running under the web server $oURI = JURI::getInstance(); } return $oURI->getHost(); } public function get_site_name() { $jconfig = JFactory::getConfig(); if(version_compare(JVERSION, '3.0', 'ge')) { return $jconfig->get('sitename',''); } else { return $jconfig->getValue('config.sitename',''); } } /* * Gets the best matching database driver class, according to CMS settings * @param bool $use_platform If set to false, it will forcibly try to assign one of the primitive type (AEDriverMySQL/AEDriverMySQLi) and NEVER tell you to use an AEPlatformDriver* class * @return string / public function get_default_database_driver( $use_platform = true ) { $jconfig = JFactory::getConfig(); if(version_compare(JVERSION, '3.0', 'ge')) { $driver = $jconfig->get('dbtype'); } else { $driver = $jconfig->getValue('config.dbtype'); } // Let's see what driver Joomla! uses... if( $use_platform ) { $hasNookuContent = file_exists(JPATH_ROOT.'/plugins/system/nooku.php'); switch($driver) { // MySQL or MySQLi drivers are known to be working; use their // Akeeba Engine extended version, AEDriverPlatformJoomla case 'mysql': if($hasNookuContent) { return 'AEDriverMysql'; } else { return 'AEDriverPlatformJoomla'; } break; case 'mysqli': if($hasNookuContent) { return 'AEDriverMysqli'; } else { return 'AEDriverPlatformJoomla'; } break; case 'sqlsrv': case 'sqlazure': return 'AEDriverPlatformJoomla'; break; case 'postgresql': return 'AEDriverPlatformJoomla'; break; case 'pdomysql': return 'AEDriverPlatformJoomla'; break; // Some custom driver. Uh oh! default: break; } } // Is this a subcase of mysqli or mysql drivers? if( strtolower(substr($driver, 0, 6)) == 'mysqli' ) { return 'AEDriverMysqli'; } elseif( strtolower(substr($driver, 0, 5)) == 'mysql' ) { return 'AEDriverMysql'; } elseif( strtolower(substr($driver, 0, 6)) == 'sqlsrv' ) { return 'AEDriverSqlsrv'; } elseif( strtolower(substr($driver, 0, 8)) == 'sqlazure' ) { return 'AEDriverSqlazure'; } elseif( strtolower(substr($driver, 0, 10)) == 'postgresql' ) { return 'AEDriverPostgresql'; } elseif( strtolower(substr($driver, 0, 8)) == 'pdomysql' ) { return 'AEDriverPdomysql'; } // If we're still here, we have to guesstimate the correct driver. All bets are off. // And you'd better be using MySQL!!! if(function_exists('mysqli_connect')) { // MySQLi available. Let's use it. return 'AEDriverMysqli'; } else { // MySQLi is not available; let's use standard MySQL. return 'AEDriverMysql'; } } /* * Returns a set of options to connect to the default database of the current CMS * @return array / public function get_platform_database_options() { static $options; if(empty($options)) { $conf = JFactory::getConfig(); if(version_compare(JVERSION, '3.0', 'ge')) { $options = array( 'host' => $conf->get('host'), 'user' => $conf->get('user'), 'password' => $conf->get('password'), 'database' => $conf->get('db'), 'prefix' => $conf->get('dbprefix') ); } else { $options = array( 'host' => $conf->getValue('config.host'), 'user' => $conf->getValue('config.user'), 'password' => $conf->getValue('config.password'), 'database' => $conf->getValue('config.db'), 'prefix' => $conf->getValue('config.dbprefix') ); } } return $options; } /* * Provides a platform-specific translation function * @param string $key The translation key * @return string / public function translate($key) { return JText::_($key); } /* * Populates global constants holding the Akeeba version / public function load_version_defines() { if(file_exists(JPATH_COMPONENT_ADMINISTRATOR.'/version.php')) { require_once(JPATH_COMPONENT_ADMINISTRATOR.'/version.php'); } if(!defined('AKEEBA_VERSION')) define("AKEEBA_VERSION", "svn"); if(!defined('AKEEBA_PRO')) define('AKEEBA_PRO', false); if(!defined('AKEEBA_DATE')) { JLoader::import('joomla.utilities.date'); $date = new JDate(); define( "AKEEBA_DATE", $date->format('Y-m-d') ); } } /* * Returns the platform name and version * @param string $platform_name Name of the platform, e.g. Joomla! * @param string $version Full version of the platform / public function getPlatformVersion() { $v = new JVersion(); return array( 'name' => 'Joomla!', 'version' => $v->getShortVersion() ); } /* * Logs platform-specific directories with _AE_LOG_INFO log level / public function log_platform_special_directories() { $ret = array(); AEUtilLogger::WriteLog(_AE_LOG_INFO, "JPATH_BASE :" . JPATH_BASE ); AEUtilLogger::WriteLog(_AE_LOG_INFO, "JPATH_SITE :" . JPATH_SITE ); AEUtilLogger::WriteLog(_AE_LOG_INFO, "JPATH_ROOT :" . JPATH_ROOT ); AEUtilLogger::WriteLog(_AE_LOG_INFO, "JPATH_CACHE :" . JPATH_CACHE ); AEUtilLogger::WriteLog(_AE_LOG_INFO, "Computed root :" . $this->get_site_root() ); // If the release is older than 3 months, issue a warning if (defined('AKEEBA_DATE')) { $releaseDate = new JDate(AKEEBA_DATE); if (time() - $releaseDate->toUnix() > 7776000) { if (!isset($ret['warnings'])) { $ret['warnings'] = array(); $ret['warnings'] = array_merge($ret['warnings'], array( 'Your version of Akeeba Backup is more than 90 days old and most likely already out of date. Please check if a newer version is published and install it.' )); } } } // Detect UNC paths and warn the user if(DIRECTORY_SEPARATOR == '\\') { if( (substr(JPATH_ROOT, 0, 2) == '\\\\') \|\| (substr(JPATH_ROOT, 0, 2) == '//') ) { if (!isset($ret['warnings'])) { $ret['warnings'] = array(); } $ret['warnings'] = array_merge($ret['warnings'], array( 'Your site\'s root is using a UNC path (e.g. \\SERVER\path\to\root). PHP has known bugs which may', 'prevent it from working properly on a site like this. Please take a look at', 'https://bugs.php.net/bug.php?id=40163 and https://bugs.php.net/bug.php?id=52376. As a result your', 'backup may fail.' )); } } if (empty($ret)) { $ret = null; } return $ret; } /* * Loads a platform-specific software configuration option * @param string $key * @param mixed $default * @return mixed / public function get_platform_configuration_option($key, $default) { // Get the component configuration option WITHOUT using the bloody ever-changing Joomla! API... return AEUtilComconfig::getValue($key, $default); } /* * Returns a list of emails to the Super Administrators * * @return array / public function get_administrator_emails() { $db = JFactory::getDbo(); // Load the root asset node and read the rules $query = $db->getQuery(true) ->select($db->qn('rules')) ->from('#__assets') ->where($db->qn('name') . ' = ' . $db->q('root.1')); $db->setQuery($query); $jsonRules = $db->loadResult(); $rules = json_decode($jsonRules, true); $adminGroups = array(); $mails = array(); if (array_key_exists('core.admin', $rules)) { $rawGroups = $rules['core.admin']; if (!empty($rawGroups)) { foreach ($rawGroups as $group => $allowed) { if ($allowed) { $adminGroups[] = $db->q($group); } } } } if (empty($adminGroups)) { return $mails; } $adminGroups = implode(',', $adminGroups); $query = $db->getQuery(true) ->select(array( $db->qn('u') . '.' . $db->qn('name'), $db->qn('u') . '.' . $db->qn('email'), )) ->from($db->qn('#__users') . ' AS ' . $db->qn('u')) ->join( 'INNER', $db->qn('#__user_usergroup_map') . ' AS ' . $db->qn('m') . ' ON (' . $db->qn('m') . '.' . $db->qn('user_id') . ' = ' . $db->qn('u') . '.' . $db->qn('id') . ')' ) ->where($db->qn('m') . '.' . $db->qn('group_id') . ' IN ' . $adminGroups); $db->setQuery($query); $superAdmins = $db->loadAssocList(); if(!empty($superAdmins)) { foreach($superAdmins as $admin) { $mails[] = $admin['email']; } } return $mails; } /* * Sends a very simple email using the platform's mailer facility * * @param string $to The recipient's email address * @param string $subject The subject of the email * @param string $body The body of the email * @param string $attachFile The file to attach (null to not attach any files) * * @return boolean / public function send_email($to, $subject, $body, $attachFile = null) { AEUtilLogger::WriteLog(_AE_LOG_DEBUG,"-- Fetching mailer object" ); $mailer = AEPlatform::getInstance()->getMailer(); if(!is_object($mailer)) { AEUtilLogger::WriteLog(_AE_LOG_WARNING,"Could not send email to $to - Reason: Mailer object is not an object; please check your system settings"); return false; } AEUtilLogger::WriteLog(_AE_LOG_DEBUG,"-- Creating email message"); $recipient = array($to); $mailer->addRecipient($recipient); $mailer->setSubject($subject); $mailer->setBody($body); if(!empty($attachFile)) { AEUtilLogger::WriteLog(_AE_LOG_WARNING, "-- Attaching $attachFile"); if(!file_exists($attachFile) \|\| !(is_file($attachFile) \|\| is_link($attachFile))) { AEUtilLogger::WriteLog(_AE_LOG_WARNING, "The file does not exist, or it's not a file; no email sent"); return false; } if(!is_readable($attachFile)) { AEUtilLogger::WriteLog(_AE_LOG_WARNING, "The file is not readable; no email sent"); return false; } $filesize = @filesize($attachFile); if($filesize) { // Check that we have AT LEAST 2.5 times free RAM as the filesize (that's how much we'll need) if(!function_exists('ini_get')) { // Assume 8Mb of PHP memory limit (worst case scenario) $totalRAM = 8388608; } else { $totalRAM = ini_get('memory_limit'); if(strstr($totalRAM, 'M')) { $totalRAM = (int)$totalRAM 1048576; } elseif(strstr($totalRAM, 'K')) { $totalRAM = (int)$totalRAM * 1024; } elseif(strstr($totalRAM, 'G')) { $totalRAM = (int)$totalRAM * 1073741824; } else { $totalRAM = (int)$totalRAM; } if($totalRAM <= 0) { // No memory limit? Cool! Assume 1Gb of available RAM (which is absurdely abundant as of March 2011...) $totalRAM = 1086373952; } } if(!function_exists('memory_get_usage')) { $usedRAM = 8388608; } else { $usedRAM = memory_get_usage(); } $availableRAM = $totalRAM - $usedRAM; if($availableRAM < 2.5$filesize) { AEUtilLogger::WriteLog(_AE_LOG_WARNING, "The file is too big to be sent by email. Please use a smaller Part Size for Split Archives setting."); AEUtilLogger::WriteLog(_AE_LOG_DEBUG, "Memory limit $totalRAM bytes -- Used memory $usedRAM bytes -- File size $filesize -- Attachment requires approx. ".(2.5$filesize)." bytes"); return false; } } else { AEUtilLogger::WriteLog(_AE_LOG_WARNING, "Your server fails to report the file size of $attachFile. If the backup crashes, please use a smaller Part Size for Split Archives setting"); } $mailer->addAttachment($attachFile); } AEUtilLogger::WriteLog(_AE_LOG_DEBUG,"-- Sending message"); $result = $mailer->Send(); if($result instanceof JException) { AEUtilLogger::WriteLog(_AE_LOG_WARNING,"Could not email $to:"); AEUtilLogger::WriteLog(_AE_LOG_WARNING,$result->getMessage()); $ret = $result->getMessage(); unset($result); unset($mailer); return $ret; } else { AEUtilLogger::WriteLog(_AE_LOG_DEBUG,"-- Email sent"); return true; } } /** * Deletes a file from the local server using direct file access or FTP * @param string $file * @return bool / public function unlink($file) { if(function_exists('jimport')) { JLoader::import('joomla.filesystem.file'); $result = JFile::delete($file); if(!$result) $result = @unlink($file); } else { $result = parent::unlink($file); } return $result; } /* * Moves a file around within the local server using direct file access or FTP * @param string $from * @param string $to * @return bool / public function move($from, $to) { if(function_exists('jimport')) { JLoader::import('joomla.filesystem.file'); $result = JFile::move($from, $to); // JFile failed. Let's try rename() if(!$result) { $result = @rename($from, $to); } // Rename failed, too. Let's try copy/delete if(!$result) { // Try copying with JFile. If it fails, use copy(). $result = JFile::copy($from, $to); if(!$result) $result = @copy($from, $to); // If the copy succeeded, try deleting the original with JFile. If it fails, use unlink(). if($result) { $result = $this->unlink($from); } } } else { $result = parent::move($from, $to); } return $result; } /* * Registers Akeeba Engine's core classes with JLoader * @param string $path_prefix The path prefix to look in / protected function register_akeeba_engine_classes($path_prefix) { global $Akeeba_Class_Map; JLoader::import('joomla.filesystem.folder'); foreach($Akeeba_Class_Map as $class_prefix => $path_suffix) { // Bail out if there is such directory, so as not to have Joomla! throw errors if(!@is_dir($path_prefix.'/'.$path_suffix)) continue; $file_list = JFolder::files( $path_prefix.'/'.$path_suffix, '.\.php' ); if(is_array($file_list) && !empty($file_list)) foreach($file_list as $file) { $class_suffix = ucfirst(basename($file, '.php')); JLoader::register($class_prefix.$class_suffix, $path_prefix.'/'.$path_suffix.'/'.$file ); } } } /** * Joomla!-specific function to get an instance of the mailer class * @return JMail / public function &getMailer() { $mailer = JFactory::getMailer(); if(!is_object($mailer)) { AEUtilLogger::WriteLog(_AE_LOG_WARNING,"Fetching Joomla!'s mailer was impossible; imminent crash!"); } else { $emailMethod = $mailer->Mailer; AEUtilLogger::WriteLog(_AE_LOG_DEBUG,"-- Joomla!'s mailer is using $emailMethod mail method."); } return $mailer; } /* * Stores a flash (temporary) variable in the session. * * @param string $name The name of the variable to store * @param string $value The value of the variable to store * * @return void / public function set_flash_variable($name, $value) { $session = JFactory::getSession(); $session->set($name, $value, 'akeebabackup'); } /* * Return the value of a flash (temporary) variable from the session and * immediately removes it. * * @param string $name The name of the flash variable * @param mixed $default Default value, if the variable is not defined * * @return mixed The value of the variable or $default if it's not set / public function get_flash_variable($name, $default = null) { $session = JFactory::getSession(); $ret = $session->get($name, $default, 'akeebabackup'); $session->set($name, null, 'akeebabackup'); return $ret; } /* * Perform an immediate redirection to the defined URL * * @param string $url The URL to redirect to * * @return void */ public function redirect($url) { JFactory::getApplication()->redirect($url); } }