ReportController.php

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<?php
namespace TYPO3\CMS\Reports\Controller;

class ReportController extends \TYPO3\CMS\Extbase\Mvc\Controller\ActionController {

    public function initializeAction() {
        $vars = \TYPO3\CMS\Core\Utility\GeneralUtility::_GET('tx_reports_system_reportstxreportsm1');
        if (!isset($vars['redirect']) && $vars['action'] !== 'index' && !isset($vars['extension']) && is_array($GLOBALS['BE_USER']->uc['reports']['selection'])) {
            $previousSelection = $GLOBALS['BE_USER']->uc['reports']['selection'];
            if (!empty($previousSelection['extension']) && !empty($previousSelection['report'])) {
                $this->redirect('detail', 'Report', NULL, array('extension' => $previousSelection['extension'], 'report' => $previousSelection['report'], 'redirect' => 1));
            } else {
                $this->redirect('index');
            }
        }
    }

    public function indexAction() {
        $this->view->assignMultiple(array(
            'reports' => $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'],
            'menu' => $this->getMenu()
        ));
        $this->saveState();
    }

    public function detailAction($extension, $report) {
        $content = ($error = '');
        $reportClass = NULL;
        if (
            isset($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'][$extension])
            && is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'][$extension])
            && isset($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'][$extension][$report])
            && is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'][$extension][$report])
            && isset($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'][$extension][$report]['report'])
        ) {
            $reportClass = $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'][$extension][$report]['report'];
        }

        // If extension has been uninstalled/removed redirect to index
        if ($reportClass === NULL) {
            $this->redirect('index');
        }

        $reportInstance = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance($reportClass, $this);
        if ($reportInstance instanceof \TYPO3\CMS\Reports\ReportInterface) {
            $content = $reportInstance->getReport();
            $this->saveState($extension, $report);
        } else {
            $error = $reportClass . ' does not implement the Report Interface which is necessary to be displayed here.';
        }
        $this->view->assignMultiple(array(
            'content' => $content,
            'error' => $error,
            'report' => $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'][$extension][$report],
            'menu' => $this->getMenu()
        ));
    }

    protected function getMenu() {
        $reportsMenuItems = array();
        foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['reports'] as $extKey => $reports) {
            foreach ($reports as $reportName => $report) {
                $reportsMenuItems[] = array(
                    'title' => $GLOBALS['LANG']->sL($report['title']),
                    'extension' => $extKey,
                    'report' => $reportName
                );
            }
        }
        return $reportsMenuItems;
    }

    protected function saveState($extension = '', $report = '') {
        $GLOBALS['BE_USER']->uc['reports']['selection'] = array('extension' => $extension, 'report' => $report);
        $GLOBALS['BE_USER']->writeUC();
    }

}