class.tx_reports_reports_status_systemstatus.php

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<?php
/***************************************************************
*  Copyright notice
*
*  (c) 2009-2011 Ingo Renner <ingo@typo3.org>
*  All rights reserved
*
*  This script is part of the TYPO3 project. The TYPO3 project is
*  free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  The GNU General Public License can be found at
*  http://www.gnu.org/copyleft/gpl.html.
*
*  This script 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 General Public License for more details.
*
*  This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/


/**
 * Performs several checks about the system's health
 *
 * @author      Ingo Renner <ingo@typo3.org>
 * @package     TYPO3
 * @subpackage  reports
 */
class tx_reports_reports_status_SystemStatus implements tx_reports_StatusProvider {

    /**
     * Determines the Install Tool's status, mainly concerning its protection.
     *
     * @return  array   List of statuses
     * @see typo3/sysext/reports/interfaces/tx_reports_StatusProvider::getStatus()
     */
    public function getStatus() {
        $statuses = array(
            'Php'                 => $this->getPhpStatus(),
            'PhpMemoryLimit'      => $this->getPhpMemoryLimitStatus(),
            'PhpRegisterGlobals'  => $this->getPhpRegisterGlobalsStatus(),
            'Webserver'           => $this->getWebserverStatus(),
        );

        return $statuses;
    }


    /**
     * Checks the current PHP version against a minimum required version.
     *
     * @return  tx_reports_reports_status_Status    A status of whether a minimum PHP version requirment is met
     */
    protected function getPhpStatus() {
        $message  = '';
        $severity = tx_reports_reports_status_Status::OK;

        if (version_compare(phpversion(), TYPO3_REQUIREMENTS_MINIMUM_PHP) < 0) {
            $message  = $GLOBALS['LANG']->getLL('status_phpTooOld');
            $severity = tx_reports_reports_status_Status::ERROR;
        }

        return t3lib_div::makeInstance('tx_reports_reports_status_Status',
            $GLOBALS['LANG']->getLL('status_phpVersion'),
            phpversion(),
            $message,
            $severity
        );
    }

    /**
     * Checks the current memory limit against a minimum required version.
     *
     * @return  tx_reports_reports_status_Status    A status of whether a minimum memory limit requirment is met
     */
    protected function getPhpMemoryLimitStatus() {
        $memoryLimit = ini_get('memory_limit');
        $message     = '';
        $severity    = tx_reports_reports_status_Status::OK;

        if ($memoryLimit && t3lib_div::getBytesFromSizeMeasurement($memoryLimit) < t3lib_div::getBytesFromSizeMeasurement(TYPO3_REQUIREMENTS_RECOMMENDED_PHP_MEMORY_LIMIT)) {
            $message = sprintf($GLOBALS['LANG']->getLL('status_phpMemoryRecommendation'), $memoryLimit, TYPO3_REQUIREMENTS_RECOMMENDED_PHP_MEMORY_LIMIT);
            $severity = tx_reports_reports_status_Status::WARNING;
        }

        if ($memoryLimit && t3lib_div::getBytesFromSizeMeasurement($memoryLimit) < t3lib_div::getBytesFromSizeMeasurement(TYPO3_REQUIREMENTS_MINIMUM_PHP_MEMORY_LIMIT)) {
            $message = sprintf($GLOBALS['LANG']->getLL('status_phpMemoryRequirement'), $memoryLimit, TYPO3_REQUIREMENTS_MINIMUM_PHP_MEMORY_LIMIT);
            $severity = tx_reports_reports_status_Status::ERROR;
        }

        if ($severity > tx_reports_reports_status_Status::OK) {
            if ($php_ini_path = get_cfg_var('cfg_file_path')) {
                $message .= ' ' . sprintf($GLOBALS['LANG']->getLL('status_phpMemoryEditLimit'), $php_ini_path);
            } else {
                $message .= ' ' . $GLOBALS['LANG']->getLL('status_phpMemoryContactAdmin');
            }
        }

        return t3lib_div::makeInstance('tx_reports_reports_status_Status',
            $GLOBALS['LANG']->getLL('status_phpMemory'), $memoryLimit, $message, $severity
        );
    }

    /**
     * checks whether register globals is on or off.
     *
     * @return  tx_reports_reports_status_Status    A status of whether register globals is on or off
     */
    protected function getPhpRegisterGlobalsStatus() {
        $value    = $GLOBALS['LANG']->getLL('status_disabled');
        $message  = '';
        $severity = tx_reports_reports_status_Status::OK;

        $registerGlobals = trim(ini_get('register_globals'));

            // can't reliably check for 'on', therefore checking for the oposite 'off', '', or 0
        if (!empty($registerGlobals) && strtolower($registerGlobals) != 'off') {
            $registerGlobalsHighlight = '<em>register_globals</em>';
            $phpManualLink .= '<a href="http://php.net/configuration.changes">' . $GLOBALS['LANG']->getLL('status_phpRegisterGlobalsHowToChange') . '</a>';
            $message  = sprintf($GLOBALS['LANG']->getLL('status_phpRegisterGlobalsEnabled'), $registerGlobalsHighlight);
            $message .= ' ' . sprintf($GLOBALS['LANG']->getLL('status_phpRegisterGlobalsSecurity'), $registerGlobalsHighlight);
            $message .= ' ' . sprintf($GLOBALS['LANG']->getLL('status_phpRegisterGlobalsPHPManual'), $phpManualLink);
            $severity = tx_reports_reports_status_Status::ERROR;
            $value = $GLOBALS['LANG']->getLL('status_enabled')
                . ' (\'' . $registerGlobals . '\')';
        }

        return t3lib_div::makeInstance('tx_reports_reports_status_Status',
            $GLOBALS['LANG']->getLL('status_phpRegisterGlobals'), $value, $message, $severity
        );
    }

    /**
     * Reports the webserver TYPO3 is running on.
     *
     * @return  tx_reports_reports_status_Status    The server software as a status
     */
    protected function getWebserverStatus() {
        return t3lib_div::makeInstance('tx_reports_reports_status_Status',
            $GLOBALS['LANG']->getLL('status_webServer'),
            $_SERVER['SERVER_SOFTWARE']
        );
    }
}


if (defined('TYPO3_MODE') && isset($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['ext/reports/reports/status/class.tx_reports_reports_status_systemstatus.php'])) {
    include_once($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['ext/reports/reports/status/class.tx_reports_reports_status_systemstatus.php']);
}

?>