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msd2/tracking/piwik/plugins/Heartbeat/Heartbeat.php

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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\Heartbeat;
+
+use Piwik\Plugin;
+
+class Heartbeat extends Plugin
+{
+    public function isTrackerPlugin()
+    {
+        return true;
+    }
+}

msd2/tracking/piwik/plugins/Heartbeat/Tracker/PingRequestProcessor.php

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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\Heartbeat\Tracker;
+
+use Piwik\Common;
+use Piwik\Tracker\Request;
+use Piwik\Tracker\RequestProcessor;
+use Piwik\Tracker\Visit\VisitProperties;
+
+/**
+ * Handles ping tracker requests.
+ *
+ * Defines no request metadata.
+ */
+class PingRequestProcessor extends RequestProcessor
+{
+    public function afterRequestProcessed(VisitProperties $visitProperties, Request $request)
+    {
+        if ($this->isPingRequest($request)) {
+            // on a ping request that is received before the standard visit length, we just update the visit time w/o adding a new action
+            Common::printDebug("-> ping=1 request: we do not track a new action nor a new visit nor any goal.");
+            $request->setMetadata('Actions', 'action', null);
+            $request->setMetadata('Goals', 'goalsConverted', array());
+            $request->setMetadata('Goals', 'visitIsConverted', false);
+
+            // When a ping request is received more than 30 min after the last request/ping,
+            // we choose not to create a new visit.
+            if ($request->getMetadata('CoreHome', 'isNewVisit')) {
+                Common::printDebug("-> ping=1 request: we do _not_ create a new visit.");
+                return true; // abort request
+            }
+        }
+
+        return false;
+    }
+
+    private function isPingRequest(Request $request)
+    {
+        return $request->getParam('ping') == 1;
+    }
+}

msd2/tracking/piwik/plugins/Heartbeat/plugin.json

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+{
+  "description": "Handles ping tracker requests."
+}