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<?php |
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namespace PiedWeb\SeoPocketCrawler; |
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use PiedWeb\UrlHarvester\Harvest; |
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use PiedWeb\UrlHarvester\Indexable; |
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use PiedWeb\UrlHarvester\Link; |
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class CrawlerUrl |
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{ |
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/** @var mixed */ |
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protected $harvest; |
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/** @var Url */ |
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protected $url; |
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/** @var CrawlerConfig */ |
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protected $config; |
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/** @var array internal links from the current Url */ |
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protected $links = []; |
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public function __construct(Url $url, CrawlerConfig $config) |
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{ |
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$this->url = $url; |
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$this->config = $config; |
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$this->harvest(); |
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} |
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protected function harvest() |
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{ |
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if ($this->isNetworkError()) { |
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return null; |
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} |
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if ($this->isRedirection()) { |
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return null; |
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} |
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$this->defaultHarvesting(); |
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} |
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/** |
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* permit to easily extend and change what is harvested, for example adding : |
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* $this->harvestBreadcrumb(); |
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* $this->url->setKws(','.implode(',', array_keys($this->getHarvester()->getKws())).','); // Slow ~20% |
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* $this->url->setRatioTextCode($this->getHarvester()->getRatioTxtCode()); // Slow ~30% |
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* $this->url->setH1($this->getHarvester()->getUniqueTag('h1') ?? '');. |
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*/ |
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protected function defaultHarvesting() |
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{ |
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$this->url->setIndexable($this->getHarvester()->indexable()); // slow ~30% |
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$this->url->setMimeType((string) $this->getHarvester()->getResponse()->getMimeType()); |
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$this->harvestLinks(); |
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// Old way: $this->getHarvester()->getTextAnalysis()->getWordNumber(); |
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$this->url->setWordCount($this->getHarvester()->getWordCount()); |
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$this->url->setLoadTime($this->getHarvester()->getResponse()->getInfo('total_time')); |
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$this->url->setSize($this->getHarvester()->getResponse()->getInfo('size_download')); |
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$this->url->setTitle($this->getHarvester()->getUniqueTag('head title') ?? ''); |
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} |
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protected function isNetworkError() |
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{ |
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if (! $this->getHarvester() instanceof Harvest) { |
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$this->url->setIndexable( |
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42 != $this->getHarvester() ? Indexable::NOT_INDEXABLE_NETWORK_ERROR : Indexable::NOT_INDEXABLE_TOO_BIG |
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); |
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$this->config->getRecorder()->cache($this->getHarvester(), $this->url); |
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return true; |
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} |
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$this->config->getRecorder()->cache($this->getHarvester(), $this->url); |
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return false; |
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} |
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protected function isRedirection() |
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{ |
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if ($redir = $this->getHarvester()->getRedirectionLink()) { |
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if ($redir->isInternalLink()) { // add to $links to permits to update counter & co |
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$this->links[] = $redir; |
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} |
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$this->url->setIndexable(Indexable::NOT_INDEXABLE_3XX); |
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return true; |
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} |
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return false; |
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} |
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protected function harvestLinks() |
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{ |
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$this->config->getRecorder()->recordOutboundLink($this->url, $this->getHarvester()->getLinks()); // ~10% |
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$this->url->links = count($this->getHarvester()->getLinks()); |
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$this->url->links_duplicate = $this->getHarvester()->getNbrDuplicateLinks(); |
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$this->url->links_internal = count($this->getHarvester()->getLinks(Link::LINK_INTERNAL)); |
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$this->url->links_self = count($this->getHarvester()->getLinks(Link::LINK_SELF)); |
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$this->url->links_sub = count($this->getHarvester()->getLinks(Link::LINK_SUB)); |
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$this->url->links_external = count($this->getHarvester()->getLinks(Link::LINK_EXTERNAL)); |
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$this->links = $this->getHarvester()->getLinks(Link::LINK_INTERNAL); |
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} |
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/** |
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* @return int|Harvest int correspond to curl error |
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*/ |
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public function getHarvester() |
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{ |
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if (null !== $this->harvest) { |
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return $this->harvest; |
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} |
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$this->harvest = Harvest::fromUrl( |
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$this->config->getBase().$this->url->getUri(), |
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$this->config->getUserAgent(), |
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'en,en-US;q=0.5', |
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$this->config->getRequestCached() |
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); |
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if ($this->harvest instanceof Harvest && null !== $this->config->getRobotsTxtCached()) { |
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$this->harvest->setRobotsTxt($this->config->getRobotsTxtCached()); |
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} |
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return $this->getHarvester(); |
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} |
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public function getLinks() |
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{ |
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return $this->links; |
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} |
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/* |
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protected function harvestBreadcrumb() |
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{ |
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$breadcrumb = $this->getHarvester()->getBreadCrumb(); |
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if (is_array($breadcrumb)) { |
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$this->url->setBreadcrumbLevel(count($breadcrumb)); |
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$this->url->setBreadcrumbFirst(isset($breadcrumb[1]) ? $breadcrumb[1]->getCleanName() : ''); |
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$this->url->setBreadcrumbText($this->getHarvester()->getBreadCrumb('//')); |
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} |
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}/**/ |
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} |
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