52 lines
1.1 KiB
PHP
52 lines
1.1 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2016-2024 F7cloud GmbH and F7cloud contributors
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* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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namespace OCA\Mail\Service\HtmlPurify;
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use HTMLPurifier_AttrTransform;
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use HTMLPurifier_Config;
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use HTMLPurifier_Context;
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use OCP\IURLGenerator;
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/**
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* Adds target="_blank" to all outbound links.
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*/
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class TransformHTMLLinks extends HTMLPurifier_AttrTransform {
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/** @var IURLGenerator */
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private $urlGenerator;
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public function __construct(IURLGenerator $urlGenerator) {
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$this->urlGenerator = $urlGenerator;
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}
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/**
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* @param array $attr
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* @param HTMLPurifier_Config $config
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* @param HTMLPurifier_Context $context
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* @return array
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*/
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#[\Override]
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public function transform($attr, $config, $context) {
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if (!isset($attr['href'])) {
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return $attr;
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}
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$attr['target'] = '_blank';
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$attr['rel'] = 'external noopener noreferrer';
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// Open mailto: links in Mail
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if (stripos($attr['href'], 'mailto:') === 0) {
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$attr['href'] = $this->urlGenerator->linkToRoute('mail.page.mailto') . '?to=' . substr($attr['href'], 7);
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}
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return $attr;
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}
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}
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