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SvgIconProvider.php
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1 <?php
2 namespace TYPO3\CMS\Core\Imaging\IconProvider;
3 
4 /*
5  * This file is part of the TYPO3 CMS project.
6  *
7  * It is free software; you can redistribute it and/or modify it under
8  * the terms of the GNU General Public License, either version 2
9  * of the License, or any later version.
10  *
11  * For the full copyright and license information, please read the
12  * LICENSE.txt file that was distributed with this source code.
13  *
14  * The TYPO3 project - inspiring people to share!
15  */
16 
21 
26 {
27  const MARKUP_IDENTIFIER_INLINE = 'inline';
28 
33  public function prepareIconMarkup(Icon $icon, array $options = [])
34  {
35  $icon->setMarkup($this->generateMarkup($icon, $options));
36  $icon->setAlternativeMarkup(self::MARKUP_IDENTIFIER_INLINE, $this->generateInlineMarkup($icon, $options));
37  }
38 
45  protected function generateMarkup(Icon $icon, array $options)
46  {
47  if (empty($options['source'])) {
48  throw new \InvalidArgumentException('[' . $icon->getIdentifier() . '] The option "source" is required and must not be empty', 1460976566);
49  }
50 
51  $source = $options['source'];
52 
53  if (strpos($source, 'EXT:') === 0 || strpos($source, '/') !== 0) {
54  $source = GeneralUtility::getFileAbsFileName($source);
55  }
56 
57  $source = PathUtility::getAbsoluteWebPath($source);
58  return '<img src="' . htmlspecialchars($source) . '" width="' . $icon->getDimension()->getWidth() . '" height="' . $icon->getDimension()->getHeight() . '" />';
59  }
60 
67  protected function generateInlineMarkup(Icon $icon, array $options)
68  {
69  if (empty($options['source'])) {
70  throw new \InvalidArgumentException('The option "source" is required and must not be empty', 1460976610);
71  }
72 
73  $source = $options['source'];
74 
75  if (strpos($source, 'EXT:') === 0 || strpos($source, '/') !== 0) {
76  $source = GeneralUtility::getFileAbsFileName($source);
77  }
78 
79  return $this->getInlineSvg($source);
80  }
81 
87  protected function getInlineSvg($source)
88  {
89  if (!file_exists($source)) {
90  return '';
91  }
92 
93  $svgContent = file_get_contents($source);
94  $svgContent = preg_replace('/<script[\s\S]*?>[\s\S]*?<\/script>/i', '', $svgContent);
95  // Disables the functionality to allow external entities to be loaded when parsing the XML, must be kept
96  $previousValueOfEntityLoader = libxml_disable_entity_loader(true);
97  $svgElement = simplexml_load_string($svgContent);
98  libxml_disable_entity_loader($previousValueOfEntityLoader);
99 
100  // remove xml version tag
101  $domXml = dom_import_simplexml($svgElement);
102  return $domXml->ownerDocument->saveXML($domXml->ownerDocument->documentElement);
103  }
104 }
setAlternativeMarkup($markupIdentifier, $markup)
Definition: Icon.php:134
static getFileAbsFileName($filename, $_=null, $_2=null)
static getAbsoluteWebPath($targetPath)
Definition: PathUtility.php:40