FileUploadController.php

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<?php
namespace TYPO3\CMS\Backend\Controller\File;

use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;

class FileUploadController {

    // Internal, static:
    public $doc;

    // Name of the filemount
    public $title;

    // Internal, static (GPVar):
    // Set with the target path inputted in &target
    public $target;

    // Return URL of list module.
    public $returnUrl;

    // Internal, dynamic:
    // Accumulating content
    public $content;

    protected $folderObject;

    public function __construct() {
        $GLOBALS['SOBE'] = $this;
        $GLOBALS['LANG']->includeLLFile('EXT:lang/locallang_misc.xlf');
        $GLOBALS['BACK_PATH'] = '';

        $this->init();
    }

    protected function init() {
        // Initialize GPvars:
        $this->target = GeneralUtility::_GP('target');
        $this->returnUrl = GeneralUtility::sanitizeLocalUrl(GeneralUtility::_GP('returnUrl'));
        if (!$this->returnUrl) {
            $this->returnUrl = GeneralUtility::getIndpEnv('TYPO3_SITE_URL') . TYPO3_mainDir . BackendUtility::getModuleUrl('file_list') . '&id=' . rawurlencode($this->target);
        }
        // Create the folder object
        if ($this->target) {
            $this->folderObject = \TYPO3\CMS\Core\Resource\ResourceFactory::getInstance()->retrieveFileOrFolderObject($this->target);
        }
        if ($this->folderObject->getStorage()->getUid() === 0) {
            throw new \TYPO3\CMS\Core\Resource\Exception\InsufficientFolderAccessPermissionsException('You are not allowed to access folders outside your storages', 1375889834);
        }

        // Cleaning and checking target directory
        if (!$this->folderObject) {
            $title = $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_mod_file_list.xlf:paramError', TRUE);
            $message = $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_mod_file_list.xlf:targetNoDir', TRUE);
            throw new \RuntimeException($title . ': ' . $message, 1294586843);
        }
        // Setting the title and the icon
        $icon = \TYPO3\CMS\Backend\Utility\IconUtility::getSpriteIcon('apps-filetree-root');
        $this->title = $icon . htmlspecialchars($this->folderObject->getStorage()->getName()) . ': ' . htmlspecialchars($this->folderObject->getIdentifier());
        // Setting template object
        $this->doc = GeneralUtility::makeInstance('TYPO3\\CMS\\Backend\\Template\\DocumentTemplate');
        $this->doc->setModuleTemplate('EXT:backend/Resources/Private/Templates/file_upload.html');
        $this->doc->backPath = $GLOBALS['BACK_PATH'];
        $this->doc->form = '<form action="tce_file.php" method="post" name="editform" enctype="' . $GLOBALS['TYPO3_CONF_VARS']['SYS']['form_enctype'] . '">';
    }

    public function main() {
        // Make page header:
        $this->content = $this->doc->startPage($GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:file_upload.php.pagetitle'));
        $form = $this->renderUploadForm();
        $pageContent = $this->doc->header($GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:file_upload.php.pagetitle')) . $this->doc->section('', $form);
        // Header Buttons
        $docHeaderButtons = array(
            'csh' => BackendUtility::cshItem('xMOD_csh_corebe', 'file_upload', $GLOBALS['BACK_PATH']),
            'back' => ''
        );
        $markerArray = array(
            'CSH' => $docHeaderButtons['csh'],
            'FUNC_MENU' => BackendUtility::getFuncMenu($this->id, 'SET[function]', $this->MOD_SETTINGS['function'], $this->MOD_MENU['function']),
            'CONTENT' => $pageContent,
            'PATH' => $this->title
        );
        // Back
        if ($this->returnUrl) {
            $docHeaderButtons['back'] = '<a href="' . htmlspecialchars(\TYPO3\CMS\Core\Utility\GeneralUtility::linkThisUrl($this->returnUrl)) . '" class="typo3-goBack" title="' . $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:labels.goBack', TRUE) . '">' . \TYPO3\CMS\Backend\Utility\IconUtility::getSpriteIcon('actions-view-go-back') . '</a>';
        }
        $this->content .= $this->doc->moduleBody(array(), $docHeaderButtons, $markerArray);
        $this->content .= $this->doc->endPage();
        $this->content = $this->doc->insertStylesAndJS($this->content);
    }

    public function renderUploadForm() {
        // Make checkbox for "overwrite"
        $content = '
            <div id="c-override">
                <p><label for="overwriteExistingFiles"><input type="checkbox" class="checkbox" name="overwriteExistingFiles" id="overwriteExistingFiles" value="1" /> ' . $GLOBALS['LANG']->getLL('overwriteExistingFiles', 1) . '</label></p>
                <p>&nbsp;</p>
                <p>' . $GLOBALS['LANG']->getLL('uploadMultipleFilesInfo', TRUE) . '</p>
            </div>
            ';
        // Produce the number of upload-fields needed:
        $content .= '
            <div id="c-upload">
        ';
        // Adding 'size="50" ' for the sake of Mozilla!
        $content .= '
                <input type="file" multiple="true" name="upload_1[]" />
                <input type="hidden" name="file[upload][1][target]" value="' . htmlspecialchars($this->folderObject->getCombinedIdentifier()) . '" />
                <input type="hidden" name="file[upload][1][data]" value="1" /><br />
            ';
        $content .= '
            </div>
        ';
        // Submit button:
        $content .= '
            <div id="c-submit">
                <input type="hidden" name="redirect" value="' . $this->returnUrl . '" /><br />
                '. \TYPO3\CMS\Backend\Form\FormEngine::getHiddenTokenField('tceAction') . '
                <input type="submit" value="' . $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:file_upload.php.submit', TRUE) . '" />
            </div>
        ';
        return $content;
    }

    public function printContent() {
        echo $this->content;
    }

}