70 lines
2.3 KiB
PHP
70 lines
2.3 KiB
PHP
<?php
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/**
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* Piwik - free/libre analytics platform
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
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*/
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namespace Piwik\Plugins\SEO\Metric;
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use Piwik\Http;
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use Piwik\NumberFormatter;
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use Psr\Log\LoggerInterface;
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/**
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* Retrieves the Alexa rank.
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*/
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class Alexa implements MetricsProvider
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{
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const URL = 'https://data.alexa.com/data?cli=10&url=';
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const URL_FALLBACK = 'https://www.alexa.com/minisiteinfo/';
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const LINK = 'https://www.alexa.com/siteinfo/';
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/**
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* @var LoggerInterface
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*/
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private $logger;
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public function __construct(LoggerInterface $logger)
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{
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$this->logger = $logger;
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}
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public function getMetrics($domain)
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{
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try {
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$response = Http::sendHttpRequest(self::URL . urlencode($domain), $timeout = 10, @$_SERVER['HTTP_USER_AGENT']);
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$xml = @simplexml_load_string($response);
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$value = $xml ? NumberFormatter::getInstance()->formatNumber((int)$xml->SD->POPULARITY['TEXT']) : null;
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} catch (\Exception $e) {
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$this->logger->warning('Error while getting Alexa SEO stats: {message}', array('message' => $e->getMessage()));
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$value = $this->tryFallbackMethod($domain);
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}
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$logo = "plugins/Morpheus/icons/dist/SEO/alexa.com.png";
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$link = self::LINK . urlencode($domain);
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return array(
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new Metric('alexa', 'SEO_AlexaRank', $value, $logo, $link)
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);
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}
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private function tryFallbackMethod($domain)
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{
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try {
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$response = Http::sendHttpRequest(self::URL_FALLBACK . urlencode($domain), $timeout = 10, @$_SERVER['HTTP_USER_AGENT']);
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$dom = new \DomDocument();
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$dom->loadHTML($response);
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$nodes = (new \DomXPath($dom))->query("//div[contains(@class, 'data')]");
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if (isset($nodes[0]->nodeValue)) {
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$globalRanking = (int) str_replace(array(',', '.'), '', $nodes[0]->nodeValue);
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return NumberFormatter::getInstance()->formatNumber($globalRanking);
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}
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} catch (\Exception $e) {
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$this->logger->warning('Error while getting Alexa SEO stats via fallback method: {message}', array('message' => $e->getMessage()));
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}
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return null;
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}
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}
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