update Piwik to version 2.16 (fixes #91)

www/analytics/plugins/SEO/Metric/Bing.php

@@ -0,0 +1,56 @@
+<?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;
+
+/**
+ * Fetches the number of pages indexed in Bing.
+ */
+class Bing implements MetricsProvider
+{
+    const URL = 'http://www.bing.com/search?mkt=en-US&q=site%3A';
+
+    /**
+     * @var LoggerInterface
+     */
+    private $logger;
+
+    public function __construct(LoggerInterface $logger)
+    {
+        $this->logger = $logger;
+    }
+
+    public function getMetrics($domain)
+    {
+        $url = self::URL . urlencode($domain);
+
+        try {
+            $response = str_replace('&nbsp;', ' ', Http::sendHttpRequest($url, $timeout = 10, @$_SERVER['HTTP_USER_AGENT']));
+
+            if (preg_match('#([0-9\,]+) results#i', $response, $p)) {
+                $pageCount = NumberFormatter::getInstance()->formatNumber((int)str_replace(',', '', $p[1]));
+            } else {
+                $pageCount = 0;
+            }
+        } catch (\Exception $e) {
+            $this->logger->warning('Error while getting Bing SEO stats: {message}', array('message' => $e->getMessage()));
+            $pageCount = null;
+        }
+
+        $logo = SearchEngine::getInstance()->getLogoFromUrl('http://bing.com');
+
+        return array(
+            new Metric('bing-index', 'SEO_Bing_IndexedPages', $pageCount, $logo, null, null, 'General_Pages')
+        );
+    }
+}