Viewing file:  ImageRenderer.php (2.97 KB) -rwxrwxr-x
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<?php
declare(strict_types=1);
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
* - (c) John MacFarlane
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Extension\CommonMark\Renderer\Inline;
use League\CommonMark\Extension\CommonMark\Node\Inline\Image;
use League\CommonMark\Node\Inline\Newline;
use League\CommonMark\Node\Node;
use League\CommonMark\Node\NodeIterator;
use League\CommonMark\Node\StringContainerInterface;
use League\CommonMark\Renderer\ChildNodeRendererInterface;
use League\CommonMark\Renderer\NodeRendererInterface;
use League\CommonMark\Util\HtmlElement;
use League\CommonMark\Util\RegexHelper;
use League\CommonMark\Xml\XmlNodeRendererInterface;
use League\Config\ConfigurationAwareInterface;
use League\Config\ConfigurationInterface;
final class ImageRenderer implements NodeRendererInterface, XmlNodeRendererInterface, ConfigurationAwareInterface
{
/** @psalm-readonly-allow-private-mutation */
private ConfigurationInterface $config;
/**
* @param Image $node
*
* {@inheritDoc}
*
* @psalm-suppress MoreSpecificImplementedParamType
*/
public function render(Node $node, ChildNodeRendererInterface $childRenderer): \Stringable
{
Image::assertInstanceOf($node);
$attrs = $node->data->get('attributes');
$forbidUnsafeLinks = ! $this->config->get('allow_unsafe_links');
if ($forbidUnsafeLinks && RegexHelper::isLinkPotentiallyUnsafe($node->getUrl())) {
$attrs['src'] = '';
} else {
$attrs['src'] = $node->getUrl();
}
$attrs['alt'] = $this->getAltText($node);
if (($title = $node->getTitle()) !== null) {
$attrs['title'] = $title;
}
return new HtmlElement('img', $attrs, '', true);
}
public function setConfiguration(ConfigurationInterface $configuration): void
{
$this->config = $configuration;
}
public function getXmlTagName(Node $node): string
{
return 'image';
}
/**
* @param Image $node
*
* @return array<string, scalar>
*
* @psalm-suppress MoreSpecificImplementedParamType
*/
public function getXmlAttributes(Node $node): array
{
Image::assertInstanceOf($node);
return [
'destination' => $node->getUrl(),
'title' => $node->getTitle() ?? '',
];
}
private function getAltText(Image $node): string
{
$altText = '';
foreach ((new NodeIterator($node)) as $n) {
if ($n instanceof StringContainerInterface) {
$altText .= $n->getLiteral();
} elseif ($n instanceof Newline) {
$altText .= "\n";
}
}
return $altText;
}
}
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