SystemStatus.php

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<?php
namespace TYPO3\CMS\Reports\Report\Status;

class SystemStatus implements \TYPO3\CMS\Reports\StatusProviderInterface {

    public function getStatus() {
        $this->executeAdminCommand();
        $statuses = array(
            'PhpPeakMemory' => $this->getPhpPeakMemoryStatus(),
            'PhpModules' => $this->getMissingPhpModulesOfExtensions()
        );
        return $statuses;
    }

    protected function executeAdminCommand() {
        $command = \TYPO3\CMS\Core\Utility\GeneralUtility::_GET('adminCmd');
        switch ($command) {
            case 'clear_peak_memory_usage_flag':
                $registry = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Registry');
                $registry->remove('core', 'reports-peakMemoryUsage');
                break;
            default:
                // Do nothing
        }
    }

    protected function getPhpPeakMemoryStatus() {
        $registry = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Registry');
        $peakMemoryUsage = $registry->get('core', 'reports-peakMemoryUsage');
        $memoryLimit = \TYPO3\CMS\Core\Utility\GeneralUtility::getBytesFromSizeMeasurement(ini_get('memory_limit'));
        $value = $GLOBALS['LANG']->getLL('status_ok');
        $message = '';
        $severity = \TYPO3\CMS\Reports\Status::OK;
        $bytesUsed = $peakMemoryUsage['used'];
        $percentageUsed = $memoryLimit ? number_format($bytesUsed / $memoryLimit * 100, 1) . '%' : '?';
        $dateOfPeak = date($GLOBALS['TYPO3_CONF_VARS']['SYS']['ddmmyy'], $peakMemoryUsage['tstamp']);
        $urlOfPeak = '<a href="' . htmlspecialchars($peakMemoryUsage['url']) . '">' . htmlspecialchars($peakMemoryUsage['url']) . '</a>';
        $clearFlagUrl = \TYPO3\CMS\Core\Utility\GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL') . '&amp;adminCmd=clear_peak_memory_usage_flag';
        if ($peakMemoryUsage['used']) {
            $message = sprintf($GLOBALS['LANG']->getLL('status_phpPeakMemoryTooHigh'), \TYPO3\CMS\Core\Utility\GeneralUtility::formatSize($peakMemoryUsage['used']), $percentageUsed, \TYPO3\CMS\Core\Utility\GeneralUtility::formatSize($memoryLimit), $dateOfPeak, $urlOfPeak);
            $message .= ' <a href="' . $clearFlagUrl . '">' . $GLOBALS['LANG']->getLL('status_phpPeakMemoryClearFlag') . '</a>.';
            $severity = \TYPO3\CMS\Reports\Status::WARNING;
            $value = $percentageUsed;
        }
        return \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Reports\\Status', $GLOBALS['LANG']->getLL('status_phpPeakMemory'), $value, $message, $severity);
    }

    protected function getMissingPhpModulesOfExtensions() {
        $modules = array();
        if (is_array(${$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install/mod/class.tx_install.php']['requiredPhpModules']})) {
            foreach (${$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install/mod/class.tx_install.php']['requiredPhpModules']} as $classData) {
                $hookObject = \TYPO3\CMS\Core\Utility\GeneralUtility::getUserObj($classData);
                $modules = $hookObject->setRequiredPhpModules($modules, $this);
            }
        }
        $missingPhpModules = array();
        foreach ($modules as $module) {
            if (is_array($module)) {
                $detectedSubmodules = FALSE;
                foreach ($module as $submodule) {
                    if (extension_loaded($submodule)) {
                        $detectedSubmodules = TRUE;
                    }
                }
                if ($detectedSubmodules === FALSE) {
                    $missingPhpModules[] = sprintf($GLOBALS['LANG']->getLL('status_phpModulesGroup'), '(' . implode(', ', $module) . ')');
                }
            } elseif (!extension_loaded($module)) {
                $missingPhpModules[] = $module;
            }
        }
        if (count($missingPhpModules) > 0) {
            $value = $GLOBALS['LANG']->getLL('status_phpModulesMissing');
            $message = sprintf($GLOBALS['LANG']->getLL('status_phpModulesList'), implode(', ', $missingPhpModules));
            $message .= ' ' . $GLOBALS['LANG']->getLL('status_phpModulesInfo');
            $severity = \TYPO3\CMS\Reports\Status::ERROR;
        } else {
            $value = $GLOBALS['LANG']->getLL('status_phpModulesPresent');
            $message = '';
            $severity = \TYPO3\CMS\Reports\Status::OK;
        }
        return \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Reports\\Status', $GLOBALS['LANG']->getLL('status_phpModules'), $value, $message, $severity);
    }

}