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