ViewModuleController.php

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

use TYPO3\CMS\Backend\Utility\BackendUtility;

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

    public function __construct() {
        parent::__construct();

        $GLOBALS['LANG']->includeLLFile('EXT:viewpage/Resources/Private/Language/locallang.xlf');
        $this->pageRenderer = $GLOBALS['TBE_TEMPLATE']->getPageRenderer();
        $this->pageRenderer->addInlineSettingArray('web_view', array(
            'States' => $GLOBALS['BE_USER']->uc['moduleData']['web_view']['States'],
        ));
        $this->pageRenderer->addInlineLanguageLabelFile('EXT:viewpage/Resources/Private/Language/locallang.xlf');
    }

    public function showAction() {
        $this->view->assignMultiple(
            array(
                'widths' => $this->getPreviewFrameWidths(),
                'url' => $this->getTargetUrl()
            )
        );
    }

    protected function getTargetUrl() {
        $pageIdToShow = (int)\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('id');
        $adminCommand = $this->getAdminCommand($pageIdToShow);
        $domainName = $this->getDomainName($pageIdToShow);
        // Mount point overlay: Set new target page id and mp parameter
        $sysPage = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Frontend\\Page\\PageRepository');
        $sysPage->init(FALSE);
        $mountPointMpParameter = '';
        $finalPageIdToShow = $pageIdToShow;
        $mountPointInformation = $sysPage->getMountPointInfo($pageIdToShow);
        if ($mountPointInformation && $mountPointInformation['overlay']) {
            // New page id
            $finalPageIdToShow = $mountPointInformation['mount_pid'];
            $mountPointMpParameter = '&MP=' . $mountPointInformation['MPvar'];
        }
        // Modify relative path to protocol with host if domain record is given
        $protocolAndHost = '..';
        if ($domainName) {
            // TCEMAIN.previewDomain can contain the protocol, check prevents double protocol URLs
            if (strpos($domainName, '://') !== FALSE) {
                $protocolAndHost = $domainName;
            } else {
                $protocol = 'http';
                $page = (array)$sysPage->getPage($finalPageIdToShow);
                if ($page['url_scheme'] == 2 || $page['url_scheme'] == 0 && \TYPO3\CMS\Core\Utility\GeneralUtility::getIndpEnv('TYPO3_SSL')) {
                    $protocol = 'https';
                }
                $protocolAndHost = $protocol . '://' . $domainName;
            }
        }
        return $protocolAndHost . '/index.php?id=' . $finalPageIdToShow . $this->getTypeParameterIfSet($finalPageIdToShow) . $mountPointMpParameter . $adminCommand;
    }

    protected function getAdminCommand($pageId) {
        // The page will show only if there is a valid page and if this page may be viewed by the user
        $pageinfo = BackendUtility::readPageAccess($pageId, $GLOBALS['BE_USER']->getPagePermsClause(1));
        $addCommand = '';
        if (is_array($pageinfo)) {
            $addCommand = '&ADMCMD_editIcons=1' . BackendUtility::ADMCMD_previewCmds($pageinfo);
        }
        return $addCommand;
    }

    protected function getTypeParameterIfSet($pageId) {
        $typeParameter = '';
        $modTSconfig = BackendUtility::getModTSconfig($pageId, 'mod.web_view');
        $typeId = (int)$modTSconfig['properties']['type'];
        if ($typeId > 0) {
            $typeParameter = '&type=' . $typeId;
        }
        return $typeParameter;
    }

    protected function getDomainName($pageId) {
        $previewDomainConfig = $GLOBALS['BE_USER']->getTSConfig('TCEMAIN.previewDomain', BackendUtility::getPagesTSconfig($pageId));
        if ($previewDomainConfig['value']) {
            $domain = $previewDomainConfig['value'];
        } else {
            $domain = BackendUtility::firstDomainRecord(BackendUtility::BEgetRootLine($pageId));
        }
        return $domain;
    }

    protected function getPreviewFrameWidths() {
        $pageId = (int)\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('id');
        $modTSconfig = BackendUtility::getModTSconfig($pageId, 'mod.web_view');
        $data = json_encode(array(
            'width' => '100%',
            'height' => "100%"
        ));
        $widths = array(
            $data => $GLOBALS['LANG']->getLL('autoSize')
        );
        if (is_array($modTSconfig['properties']['previewFrameWidths.'])) {
            foreach ($modTSconfig['properties']['previewFrameWidths.'] as $item => $conf ){
                $label = '';

                $width = substr($item, 0, -1);
                $data = array('width' => $width);
                $label .= $width . 'px ';

                //if height is set
                if (isset($conf['height'])) {
                    $label .= ' × ' . $conf['height'] . 'px ';
                    $data['height'] = $conf['height'];
                }

                if (substr($conf['label'], 0, 4) !== 'LLL:') {
                    $label .= $conf['label'];
                } else {
                    $label .= $GLOBALS['LANG']->sL(trim($conf['label']));
                }
                $widths[json_encode($data)] = $label;
            }
        }
        return $widths;
    }
}