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<?php |
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namespace Spatie\Crawler\Handlers; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\StreamInterface; |
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use Psr\Http\Message\UriInterface; |
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use Spatie\Crawler\Crawler; |
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use Spatie\Crawler\CrawlProfile; |
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use Spatie\Crawler\CrawlQueue\CrawlQueue; |
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use Spatie\Crawler\CrawlSubdomains; |
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use Spatie\Crawler\CrawlUrl; |
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use Spatie\Robots\RobotsHeaders; |
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use Spatie\Robots\RobotsMeta; |
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class CrawlRequestFulfilled |
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{ |
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/** @var \Spatie\Crawler\Crawler */ |
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protected $crawler; |
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/** @var \Spatie\Crawler\CrawlQueue\CrawlQueue */ |
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protected $crawlQueue; |
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/** @var \Spatie\Crawler\CrawlProfile */ |
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protected $crawlProfile; |
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/** @var array[\Spatie\Crawler\CrawlObserver] */ |
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protected $crawlObservers; |
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/** @var \Psr\Http\Message\UriInterface */ |
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protected $baseUrl; |
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/** @var int */ |
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protected $maximumResponseSize; |
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/** @var bool */ |
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protected $respectRobots; |
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public function __construct( |
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Crawler $crawler, |
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UriInterface $baseUrl, |
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CrawlQueue $crawlQueue, |
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CrawlProfile $crawlProfile, |
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array $crawlObservers, |
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int $maximumResponseSize, |
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bool $respectRobots |
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) { |
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$this->crawler = $crawler; |
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$this->baseUrl = $baseUrl; |
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$this->crawlQueue = $crawlQueue; |
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$this->crawlProfile = $crawlProfile; |
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$this->crawlObservers = $crawlObservers; |
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$this->maximumResponseSize = $maximumResponseSize; |
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$this->respectRobots = $respectRobots; |
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} |
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public function __invoke(ResponseInterface $response, $index) |
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{ |
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$crawlUrl = $this->crawlQueue->getUrlById($index); |
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$body = $this->convertBodyToString($response->getBody(), $this->maximumResponseSize); |
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$robotsHeaders = RobotsHeaders::create($response->getHeaders()); |
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$robotsMeta = RobotsMeta::create($body); |
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if (! $this->mayIndex($robotsHeaders, $robotsMeta)) { |
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return; |
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} |
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$this->handleCrawled($response, $crawlUrl); |
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if (! $this->crawlProfile instanceof CrawlSubdomains) { |
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if ($crawlUrl->url->getHost() !== $this->baseUrl->getHost()) { |
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return; |
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} |
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} |
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if (! $this->mayFollow($robotsHeaders, $robotsMeta)) { |
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return; |
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} |
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$this->crawler->addAllLinksToCrawlQueue( |
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$body, |
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$crawlUrl->url |
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); |
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} |
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protected function convertBodyToString(StreamInterface $bodyStream, $readMaximumBytes = 1024 * 1024 * 2): string |
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{ |
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$bodyStream->rewind(); |
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$body = $bodyStream->read($readMaximumBytes); |
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return $body; |
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} |
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protected function handleCrawled(ResponseInterface $response, CrawlUrl $crawlUrl) |
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{ |
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foreach ($this->crawlObservers as $crawlObserver) { |
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$crawlObserver->crawled( |
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$crawlUrl->url, |
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$response, |
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$crawlUrl->foundOnUrl |
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); |
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} |
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} |
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View Code Duplication |
protected function mayIndex(RobotsHeaders $robotsHeaders, RobotsMeta $robotsMeta): bool |
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{ |
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if (! $this->respectRobots) { |
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return true; |
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} |
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if (! $robotsHeaders->mayIndex()) { |
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return false; |
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} |
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if (! $robotsMeta->mayIndex()) { |
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return false; |
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} |
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return true; |
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} |
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View Code Duplication |
protected function mayFollow(RobotsHeaders $robotsHeaders, RobotsMeta $robotsMeta): bool |
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{ |
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if (! $this->respectRobots) { |
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return true; |
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} |
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if (! $robotsHeaders->mayFollow()) { |
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return false; |
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} |
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if (! $robotsMeta->mayFollow()) { |
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return false; |
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} |
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return true; |
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} |
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} |
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spatie /
crawler
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.