Edit File: LinkUrlParser.php
<?php namespace Spatie\Crawler\UrlParsers; use Illuminate\Support\Collection; use InvalidArgumentException; use Psr\Http\Message\UriInterface; use Spatie\Crawler\Crawler; use Spatie\Crawler\CrawlUrl; use Spatie\Crawler\Url; use Symfony\Component\DomCrawler\Crawler as DomCrawler; use Symfony\Component\DomCrawler\Link; use Tree\Node\Node; class LinkUrlParser implements UrlParser { protected Crawler $crawler; public function __construct(Crawler $crawler) { $this->crawler = $crawler; } public function addFromHtml(string $html, UriInterface $foundOnUrl, ?UriInterface $originalUrl = null): void { $allLinks = $this->extractLinksFromHtml($html, $foundOnUrl); collect($allLinks) ->filter(fn (Url $url) => $this->hasCrawlableScheme($url)) ->map(fn (Url $url) => $this->normalizeUrl($url)) ->filter(function (Url $url) use ($foundOnUrl, $originalUrl) { if (! $node = $this->crawler->addToDepthTree($url, $foundOnUrl, null, $originalUrl)) { return false; } return $this->shouldCrawl($node); }) ->filter(fn (Url $url) => ! str_contains($url->getPath(), '/tel:')) ->each(function (Url $url) use ($foundOnUrl) { $crawlUrl = CrawlUrl::create($url, $foundOnUrl, linkText: $url->linkText()); $this->crawler->addToCrawlQueue($crawlUrl); }); } protected function extractLinksFromHtml(string $html, UriInterface $foundOnUrl): ?Collection { $domCrawler = new DomCrawler($html, $foundOnUrl); return collect($domCrawler->filterXpath('//a | //link[@rel="next" or @rel="prev"]')->links()) ->reject(function (Link $link) { if ($this->isInvalidHrefNode($link)) { return true; } if ($this->crawler->mustRejectNofollowLinks() && str_contains($link->getNode()->getAttribute('rel'), 'nofollow')) { return true; } return false; }) ->map(function (Link $link) { try { $linkText = $link->getNode()->textContent; if ($linkText) { $linkText = substr($linkText, 0, 4000); } return new Url($link->getUri(), $linkText); } catch (InvalidArgumentException $exception) { return null; } }) ->filter(); } protected function hasCrawlableScheme(UriInterface $uri): bool { return in_array($uri->getScheme(), ['http', 'https']); } protected function normalizeUrl(UriInterface $url): UriInterface { return $url->withFragment(''); } protected function shouldCrawl(Node $node): bool { $mustRespectRobots = $this->crawler->mustRespectRobots(); $robotsTxt = $this->crawler->getRobotsTxt(); if ($mustRespectRobots && $robotsTxt !== null) { $isAllowed = $robotsTxt->allows($node->getValue(), $this->crawler->getUserAgent()); if (! $isAllowed) { return false; } } $maximumDepth = $this->crawler->getMaximumDepth(); if (is_null($maximumDepth)) { return true; } return $node->getDepth() <= $maximumDepth; } protected function isInvalidHrefNode(Link $link): bool { if ($link->getNode()->nodeName !== 'a') { return false; } if ($link->getNode()->nextSibling !== null) { return false; } if ($link->getNode()->childNodes->length !== 0) { return false; } return true; } }
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