EmailViewHelper.php

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<?php
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Fluid\ViewHelpers\Link;
 
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractTagBasedViewHelper;
 
class ‪EmailViewHelper extends AbstractTagBasedViewHelper
{
    protected ‪$tagName = 'a';
 
    public function ‪initializeArguments()
    {
        parent::initializeArguments();
        $this->registerArgument('email', 'string', 'The email address to be turned into a link', true);
        $this->registerUniversalTagAttributes();
        $this->registerTagAttribute('name', 'string', 'Specifies the name of an anchor');
        $this->registerTagAttribute('rel', 'string', 'Specifies the relationship between the current document and the linked document');
        $this->registerTagAttribute('rev', 'string', 'Specifies the relationship between the linked document and the current document');
        $this->registerTagAttribute('target', 'string', 'Specifies where to open the linked document');
    }
 
    public function ‪render()
    {
        $email = $this->arguments['email'];
 
        if ($this->‪isFrontendAvailable()) {
            [$linkHref, $linkText] = ‪$GLOBALS['TSFE']->cObj->getMailTo($email, '');
            $escapeSpecialCharacters = !isset(‪$GLOBALS['TSFE']->spamProtectEmailAddresses) || ‪$GLOBALS['TSFE']->spamProtectEmailAddresses !== 'ascii';
        } else {
            $linkHref = 'mailto:' . $email;
            $linkText = htmlspecialchars($email);
            $escapeSpecialCharacters = true;
        }
        $tagContent = $this->renderChildren();
        if ($tagContent !== null) {
            $linkText = $tagContent;
        }
        $this->tag->setContent($linkText);
        $this->tag->addAttribute('href', $linkHref, $escapeSpecialCharacters);
        $this->tag->forceClosingTag(true);
        return $this->tag->render();
    }
 
    protected function ‪isFrontendAvailable()
    {
        return TYPO3_MODE === 'FE';
    }
}