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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.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\NumberFormatter;
use Piwik\Plugins\Referrers\SearchEngine;
use Psr\Log\LoggerInterface;
/**
* Retrieves the number of Dmoz.org entries.
*/
class Dmoz implements MetricsProvider
{
const URL = 'http://www.dmoz.org/search?q=';
/**
* @var LoggerInterface
*/
private $logger;
/**
* @param LoggerInterface $logger
*/
public function __construct(LoggerInterface $logger)
{
$this->logger = $logger;
}
public function getMetrics($domain)
{
try {
$response = Http::sendHttpRequest(self::URL . urlencode($domain), $timeout = 10, @$_SERVER['HTTP_USER_AGENT']);
preg_match('#[0-9] - [0-9]+ of ([0-9]+)#', $response, $p);
if (!empty($p[1])) {
$value = NumberFormatter::getInstance()->formatNumber((int)$p[1]);
} else {
$value = 0;
}
// Add DMOZ only if > 0 entries found
if ($value == 0) {
return array();
}
} catch (\Exception $e) {
$this->logger->warning('Error while getting Dmoz SEO stats: {message}', array('message' => $e->getMessage()));
$value = null;
}
$logo = SearchEngine::getInstance()->getLogoFromUrl('http://dmoz.org');
return array(
new Metric('dmoz', 'SEO_Dmoz', $value, $logo)
);
}
}
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