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\Image;
22use League\CommonMark\Util\ConfigurationAwareInterface;
23use League\CommonMark\Util\ConfigurationInterface;
24use League\CommonMark\Util\RegexHelper;
25
26final class ImageRenderer implements InlineRendererInterface, ConfigurationAwareInterface
27{
28    /**
29     * @var ConfigurationInterface
30     */
31    protected $config;
32
33    /**
34     * @param Image                    $inline
35     * @param ElementRendererInterface $DWRenderer
36     *
37     * @return string
38     */
39    public function render(AbstractInline $inline, ElementRendererInterface $DWRenderer)
40    {
41        if (!($inline instanceof Image)) {
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['src'] = '';
50        } else {
51            $attrs['src'] = $inline->getUrl();
52        }
53
54        $alt = $DWRenderer->renderInlines($inline->children());
55        $alt = \preg_replace('/\<[^>]*alt="([^"]*)"[^>]*\>/', '$1', $alt);
56        $attrs['alt'] = \preg_replace('/\<[^>]*\>/', '', $alt);
57
58        if (isset($inline->data['title'])) {
59            $attrs['title'] = $inline->data['title'];
60        }
61
62        $result = '{{' . $attrs['src'];
63        $attrs['alt'] ? $result.= '|' . $attrs['alt'] . '}}' : $result.= '}}';
64
65        return $result;
66    }
67
68    public function setConfiguration(ConfigurationInterface $configuration)
69    {
70        $this->config = $configuration;
71    }
72}
73