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<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link https://matomo.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */
namespace Piwik\Plugins\SEO\Metric;

use Piwik\Http;
use Piwik\Metrics\Formatter;
use Piwik\Log\LoggerInterface;
/**
 * Fetches the domain age using archive.org, who.is and whois.com.
 */
class DomainAge implements \Piwik\Plugins\SEO\Metric\MetricsProvider
{
    /**
     * @var Formatter
     */
    private $formatter;
    /**
     * @var LoggerInterface
     */
    private $logger;
    public function __construct(Formatter $formatter, LoggerInterface $logger)
    {
        $this->formatter = $formatter;
        $this->logger = $logger;
    }
    public function getMetrics($domain)
    {
        $domain = str_replace('www.', '', $domain ?? '');
        $ages = array();
        $age = $this->getAgeArchiveOrg($domain);
        if ($age > 0) {
            $ages[] = $age;
        }
        $age = $this->getAgeWhoIs($domain);
        if ($age > 0) {
            $ages[] = $age;
        }
        $age = $this->getAgeWhoisCom($domain);
        if ($age > 0) {
            $ages[] = $age;
        }
        if (count($ages) > 0) {
            $value = min($ages);
            $value = $this->formatter->getPrettyTimeFromSeconds(time() - $value, true);
        } else {
            $value = null;
        }
        return array(new \Piwik\Plugins\SEO\Metric\Metric('domain-age', 'SEO_DomainAge', $value, 'plugins/Morpheus/icons/dist/SEO/whois.png'));
    }
    /**
     * Returns the domain age archive.org lists for the current url
     *
     * @param string $domain
     * @return int
     */
    private function getAgeArchiveOrg($domain)
    {
        $response = $this->getUrl('https://archive.org/wayback/available?timestamp=19900101&url=' . urlencode($domain));
        $data = json_decode($response, true);
        if (empty($data["archived_snapshots"]["closest"]["timestamp"])) {
            return 0;
        }
        return strtotime($data["archived_snapshots"]["closest"]["timestamp"]);
    }
    /**
     * Returns the domain age who.is lists for the current url
     *
     * @param string $domain
     * @return int
     */
    private function getAgeWhoIs($domain)
    {
        $data = $this->getUrl('https://www.who.is/whois/' . urlencode($domain));
        preg_match('#(?:Creation Date|Created On|created|Registered on)\\.*:\\s*([ \\ta-z0-9\\/\\-:\\.]+)#si', $data, $p);
        if (!empty($p[1])) {
            $value = strtotime(trim($p[1]));
            if ($value === false) {
                return 0;
            }
            return $value;
        }
        return 0;
    }
    /**
     * Returns the domain age whois.com lists for the current url
     *
     * @param string $domain
     * @return int
     */
    private function getAgeWhoisCom($domain)
    {
        $data = $this->getUrl('https://www.whois.com/whois/' . urlencode($domain));
        preg_match('#(?:Creation Date|Created On|created|Registration Date):\\s*([ \\ta-z0-9\\/\\-:\\.]+)#si', $data, $p);
        if (!empty($p[1])) {
            $value = strtotime(trim($p[1]));
            if ($value === false) {
                return 0;
            }
            return $value;
        }
        return 0;
    }
    private function getUrl($url)
    {
        try {
            return $this->getHttpResponse($url);
        } catch (\Exception $e) {
            $this->logger->info('Error while getting SEO stats (domain age): {message}', array('message' => $e->getMessage()));
            return '';
        }
    }
    private function getHttpResponse($url)
    {
        return str_replace('&nbsp;', ' ', Http::sendHttpRequest($url, $timeout = 10, @$_SERVER['HTTP_USER_AGENT']));
    }
}