update Piwik to version 2.16 (fixes #91)

www/analytics/core/Tracker/Visitor.php

@@ -0,0 +1,60 @@
+<?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\Tracker;
+
+use Piwik\Config;
+use Piwik\Tracker;
+use Piwik\Tracker\Visit\VisitProperties;
+
+class Visitor
+{
+    private $visitorKnown = false;
+    public $visitProperties;
+
+    public function __construct(VisitProperties $visitProperties, $isVisitorKnown = false)
+    {
+        $this->visitProperties = $visitProperties;
+        $this->setIsVisitorKnown($isVisitorKnown);
+    }
+
+    public static function makeFromVisitProperties(VisitProperties $visitProperties, Request $request)
+    {
+        $isKnown = $request->getMetadata('CoreHome', 'isVisitorKnown');
+        return new Visitor($visitProperties, $isKnown);
+    }
+
+    public function setVisitorColumn($column, $value)
+    {
+        $this->visitProperties->setProperty($column, $value);
+    }
+
+    public function getVisitorColumn($column)
+    {
+        if (array_key_exists($column, $this->visitProperties->getProperties())) {
+            return $this->visitProperties->getProperty($column);
+        }
+
+        return false;
+    }
+
+    public function isVisitorKnown()
+    {
+        return $this->visitorKnown === true;
+    }
+
+    public function isNewVisit()
+    {
+        return !$this->isVisitorKnown();
+    }
+
+    private function setIsVisitorKnown($isVisitorKnown)
+    {
+        return $this->visitorKnown = $isVisitorKnown;
+    }
+}