xref: /plugin/commonmark/src/Dokuwiki/Plugin/Commonmark/Extension/Renderer/Inline/LinkRenderer.php (revision 8ec9a8f2fa8d03e80395a040a2626880092b4ddf) 
1<?php
2
3/*
4 * This file is part of the clockoon/dokuwiki-commonmark-plugin package.
5 *
6 * (c) Sungbin Jeon <clockoon@gmail.com>
7 *
8 * Original code based on the followings:
9 * - CommonMark JS reference parser (https://bitly.com/commonmark-js) (c) John MacFarlane
10 * - league/commonmark (https://github.com/thephpleague/commonmark) (c) Colin O'Dell <colinodell@gmail.com>
11 *
12 * For the full copyright and license information, please view the LICENSE
13 * file that was distributed with this source code.
14 */
15
16namespace DokuWiki\Plugin\Commonmark\Extension\Renderer\Inline;
17
18use League\CommonMark\Inline\Renderer\InlineRendererInterface;
19use League\CommonMark\ElementRendererInterface;
20use League\CommonMark\Inline\Element\AbstractInline;
21use League\CommonMark\Inline\Element\Link;
22use League\CommonMark\Util\ConfigurationAwareInterface;
23use League\CommonMark\Util\ConfigurationInterface;
24use League\CommonMark\Util\RegexHelper;
25
26final class LinkRenderer implements InlineRendererInterface, ConfigurationAwareInterface
27{
28    /**
29     * @var ConfigurationInterface
30     */
31    protected $config;
32
33    /**
34     * @param Link                     $inline
35     * @param ElementRendererInterface $DWRenderer
36     *
37     * @return HtmlElement
38     */
39    public function render(AbstractInline $inline, ElementRendererInterface $DWRenderer)
40    {
41        if (!($inline instanceof Link)) {
42            throw new \InvalidArgumentException('Incompatible inline type: ' . \get_class($inline));
43        }
44
45        $attrs = $inline->getData('attributes', []);
46
47        $forbidUnsafeLinks = !$this->config->get('allow_unsafe_links');
48        if (!($forbidUnsafeLinks && RegexHelper::isLinkPotentiallyUnsafe($inline->getUrl()))) {
49            $attrs['href'] = $inline->getUrl();
50        }
51
52//        if (isset($inline->data['title'])) {
53//            $attrs['title'] = $inline->data['title'];
54//        }
55
56        if (isset($attrs['target']) && $attrs['target'] === '_blank' && !isset($attrs['rel'])) {
57            $attrs['rel'] = 'noopener noreferrer';
58        }
59
60        $result = '[[' . $attrs['href'] . '|' . $DWRenderer->renderInlines($inline->children()) . ']]';
61        return $result;
62    }
63
64    public function setConfiguration(ConfigurationInterface $configuration)
65    {
66        $this->config = $configuration;
67    }
68}
69