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<?php |
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namespace Spatie\MixedContentScanner; |
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use Exception; |
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use GuzzleHttp\Psr7\Uri; |
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use Illuminate\Support\Collection; |
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use Psr\Http\Message\UriInterface; |
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use Symfony\Component\DomCrawler\Crawler as DomCrawler; |
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class MixedContentExtractor |
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{ |
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public static function extract(string $html, UriInterface $currentUri): array |
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{ |
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$linkedCss = []; |
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$mixed = static::getSearchNodes() |
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->mapSpread(function ($tagName, $attribute) use ($html, $currentUri, &$linkedCss) { |
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return (new DomCrawler($html, (string) $currentUri)) |
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->filterXPath("//{$tagName}[@{$attribute}]") |
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->reduce(function (DomCrawler $node) { |
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return !self::isShortLink($node); |
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}) |
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->each(function (DomCrawler $node) use ($tagName, $attribute, &$linkedCss) { |
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try { |
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$url = new Uri($node->attr($attribute)); |
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if ($tagName === 'link' && $attribute === 'href') { |
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if ($node->attr('rel') !== 'stylesheet') { |
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return; |
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} |
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if (self::hrefIsCss($url)) { |
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$linkedCss[] = $url; |
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} |
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} |
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return $url->getScheme() === 'http' ? [$tagName, $url] : null; |
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} catch (Exception $e) { |
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// ignore invalid links |
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} |
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}); |
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}) |
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->flatten(1) |
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->filter() |
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->mapSpread(function ($tagName, $mixedContentUrl) use ($currentUri) { |
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return new MixedContent($tagName, $mixedContentUrl, $currentUri); |
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}) |
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->toArray(); |
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return [$mixed, $linkedCss]; |
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} |
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protected static function getSearchNodes(): Collection |
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{ |
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return collect([ |
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['audio', 'src'], |
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['embed', 'src'], |
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['form', 'action'], |
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['link', 'href'], |
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['iframe', 'src'], |
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['img', 'src'], |
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['img', 'srcset'], |
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['object', 'data'], |
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['param', 'value'], |
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['script', 'src'], |
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['source', 'src'], |
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['source', 'srcset'], |
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['video', 'src'], |
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]); |
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} |
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protected static function isShortLink(DomCrawler $node): bool |
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{ |
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$relAttribute = $node->getNode(0)->attributes->getNamedItem('rel'); |
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if (is_null($relAttribute)) { |
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return false; |
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} |
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return strtolower($relAttribute->nodeValue) === 'shortlink'; |
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} |
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protected static function hrefIsCss(UriInterface $uri): bool |
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{ |
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return ((strpos((string) $uri, '.css') !== false)); |
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} |
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} |
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spatie /
mixed-content-scanner
