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<?php |
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namespace PiedWeb\SeoPocketCrawler\Command; |
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use PiedWeb\SeoPocketCrawler\Crawler; |
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use PiedWeb\SeoPocketCrawler\CrawlerContinue; |
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use PiedWeb\SeoPocketCrawler\CrawlerRestart; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Input\InputOption; |
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use Symfony\Component\Console\Output\OutputInterface; |
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class CrawlerCommand extends Command |
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{ |
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protected static $defaultName = 'crawler:go'; |
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protected $id; |
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protected function configure() |
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{ |
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$this->setDescription('Crawl a website.'); |
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$this |
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->addArgument( |
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'start', |
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InputArgument::REQUIRED, |
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'Define where the crawl start. Eg: https://piedweb.com' |
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.PHP_EOL.'You can specify an id from a previous crawl. Other options will not be listen.' |
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) |
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->addOption('limit', 'l', InputOption::VALUE_REQUIRED, 'Define where a depth limit', 5) |
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->addOption( |
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'ignore', |
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'i', |
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InputOption::VALUE_REQUIRED, |
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'Virtual Robots.txt to respect (could be a string or an URL).' |
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) |
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->addOption( |
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'user-agent', |
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'u', |
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InputOption::VALUE_REQUIRED, |
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'Define the user-agent used during the crawl.', |
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'SEO Pocket Crawler - PiedWeb.com/seo/crawler' |
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) |
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->addOption( |
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'wait', |
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'w', |
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InputOption::VALUE_REQUIRED, |
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'In Microseconds, the time to wait between 2 requests. Default 0,1s.', |
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100000 |
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) |
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->addOption( |
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'cache-method', |
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'c', |
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InputOption::VALUE_REQUIRED, |
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'In Microseconds, the time to wait between two request. Default : 100000 (0,1s).', |
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\PiedWeb\SeoPocketCrawler\Recorder::CACHE_ID |
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) |
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->addOption( |
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'restart', |
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'r', |
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InputOption::VALUE_REQUIRED, |
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'Permit to restart a previous crawl. Values 1 = fresh restart, 2 = restart from cache' |
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) |
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; |
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} |
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protected function execute(InputInterface $input, OutputInterface $output) |
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{ |
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$this->checkArguments($input); |
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$start = microtime(true); |
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$crawler = $this->initCrawler($input); |
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$output->writeln(['', '', 'Crawl starting !', '============', '', 'ID: '.$crawler->getConfig()->getId()]); |
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$output->writeln([ |
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null !== $this->id ? ($input->getOption('restart') ? 'Restart' : 'Continue') : '', |
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'', |
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'Details : ', |
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'- Crawl starting at '.$crawler->getConfig()->getBase().$crawler->getConfig()->getStartUrl(), |
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'- User-Agent used `'.$crawler->getConfig()->getUserAgent(), |
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'- `'.$crawler->getConfig()->getWait().' ms between two requests', |
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]); |
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$crawler->crawl(!$input->getOption('quiet')); |
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$end = microtime(true); |
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$output->writeln(['', '---------------', 'Crawl succeed', 'You can find your data in ']); |
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echo realpath($crawler->getConfig()->getDataFolder()).'/data.csv'.PHP_EOL; |
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$output->writeln(['', '', '----Chrono----', (round(($end - $start), 2)).'s', '', '']); |
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return 0; |
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} |
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public function checkArguments(InputInterface $input) |
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{ |
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if (!filter_var($input->getArgument('start'), FILTER_VALIDATE_URL)) { |
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$this->id = $input->getArgument('start'); |
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} |
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} |
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/** |
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* @return Crawler |
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*/ |
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public function initCrawler(InputInterface $input) |
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{ |
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if (null === $this->id) { |
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return new Crawler( |
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$input->getArgument('start'), |
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$this->loadVirtualRobotsTxt($input), |
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intval($input->getOption('limit')), |
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(string) $input->getOption('user-agent'), |
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intval($input->getOption('cache-method')), |
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intval($input->getOption('wait')) |
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); |
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} |
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if ($input->getOption('restart')) { |
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return new CrawlerRestart( |
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$this->id, |
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2 == $input->getOption('restart') ? true : false // $fromCache |
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); |
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} |
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return new CrawlerContinue($this->id); |
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} |
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public function loadVirtualRobotsTxt(InputInterface $input) |
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{ |
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if (null === $input->getOption('ignore')) { |
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return ''; |
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} |
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$ignore = $input->getOption('ignore'); |
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if (filter_var($ignore, FILTER_VALIDATE_URL)) { |
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return \PiedWeb\Curl\Request::get($ignore); |
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} |
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if (file_exists($ignore)) { |
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return file_get_contents($ignore); |
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} |
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throw new \Exception('An error occured with your --ignore option'); |
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} |
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} |
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PiedWeb /
SeoPocketCrawler
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