From 620441141b12837d50f0020dcc208c3f1fb898f4 Mon Sep 17 00:00:00 2001
From: diosmosis <benaka@piwik.pro>
Date: Thu, 9 Jul 2015 15:22:22 -0700
Subject: Move 'is new visit' detection to CoreHome RequestProcessor and out of
 core\Tracker\Visit.php.

---
 plugins/CoreHome/Tracker/VisitRequestProcessor.php | 117 ++++++++++++++++++++-
 1 file changed, 116 insertions(+), 1 deletion(-)

(limited to 'plugins/CoreHome/Tracker')

diff --git a/plugins/CoreHome/Tracker/VisitRequestProcessor.php b/plugins/CoreHome/Tracker/VisitRequestProcessor.php
index 596d0b926f..f531015424 100644
--- a/plugins/CoreHome/Tracker/VisitRequestProcessor.php
+++ b/plugins/CoreHome/Tracker/VisitRequestProcessor.php
@@ -8,11 +8,17 @@
 
 namespace Piwik\Plugins\CoreHome\Tracker;
 
+use Piwik\Common;
+use Piwik\Date;
 use Piwik\EventDispatcher;
+use Piwik\Exception\UnexpectedWebsiteFoundException;
+use Piwik\Tracker\Cache;
 use Piwik\Tracker\Request;
 use Piwik\Tracker\RequestProcessor;
+use Piwik\Tracker\Settings;
 use Piwik\Tracker\Visit\VisitProperties;
 use Piwik\Tracker\VisitExcluded;
+use Piwik\Tracker\VisitorRecognizer;
 
 /**
  * Encapsulates core tracking logic related to visits.
@@ -24,9 +30,21 @@ class VisitRequestProcessor extends RequestProcessor
      */
     private $eventDispatcher;
 
-    public function __construct(EventDispatcher $eventDispatcher)
+    /**
+     * @var VisitorRecognizer
+     */
+    private $visitorRecognizer;
+
+    /**
+     * @var Settings
+     */
+    private $userSettings;
+
+    public function __construct(EventDispatcher $eventDispatcher, VisitorRecognizer $visitorRecognizer, Settings $userSettings)
     {
         $this->eventDispatcher = $eventDispatcher;
+        $this->visitorRecognizer = $visitorRecognizer;
+        $this->userSettings = $userSettings;
     }
 
     public function processRequestParams(VisitProperties $visitProperties, Request $request)
@@ -40,6 +58,16 @@ class VisitRequestProcessor extends RequestProcessor
             return true;
         }
 
+        // visitor recognition
+        $visitorId = $this->userSettings->getConfigId($request, $visitProperties->visitorInfo['location_ip']);
+        $visitProperties->setRequestMetadata('CoreHome', 'visitorId', $visitorId);
+
+        $isKnown = $this->visitorRecognizer->findKnownVisitor($visitorId, $visitProperties, $request);
+        $visitProperties->setRequestMetadata('CoreHome', 'isVisitorKnown', $isKnown);
+
+        $isNewVisit = $this->isVisitNew($visitProperties, $request);
+        $visitProperties->setRequestMetadata('CoreHome', 'isNewVisit', $isNewVisit);
+
         return false;
     }
 
@@ -55,4 +83,91 @@ class VisitRequestProcessor extends RequestProcessor
          */
         $this->eventDispatcher->postEvent('Tracker.setVisitorIp', array(&$visitProperties->visitorInfo['location_ip']));
     }
+
+    /**
+     * Determines if the tracker if the current action should be treated as the start of a new visit or
+     * an action in an existing visit.
+     *
+     * @param VisitProperties $visitProperties The current visit/visitor information.
+     * @param Request $request
+     * @return bool
+     */
+    private function isVisitNew(VisitProperties $visitProperties, Request $request)
+    {
+        $isKnown = $visitProperties->getRequestMetadata('CoreHome', 'isVisitorKnown');
+        if (!$isKnown) {
+            return true;
+        }
+
+        $isLastActionInTheSameVisit = $this->isLastActionInTheSameVisit($visitProperties, $request);
+        if (!$isLastActionInTheSameVisit) {
+            Common::printDebug("Visitor detected, but last action was more than 30 minutes ago...");
+
+            return true;
+        }
+
+        $wasLastActionYesterday = $this->wasLastActionNotToday($visitProperties, $request);
+        if ($wasLastActionYesterday) {
+            Common::printDebug("Visitor detected, but last action was yesterday...");
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Returns true if the last action was done during the last 30 minutes
+     * @return bool
+     */
+    protected function isLastActionInTheSameVisit(VisitProperties $visitProperties, Request $request)
+    {
+        $lastActionTime = $visitProperties->visitorInfo['visit_last_action_time'];
+
+        return isset($lastActionTime)
+            && false !== $lastActionTime
+            && ($lastActionTime > ($request->getCurrentTimestamp() - \Piwik\Config::getInstance()->Tracker['visit_standard_length'])); // TODO: move to DI
+    }
+
+    /**
+     * Returns true if the last action was not today.
+     * @param VisitProperties $visitor
+     * @return bool
+     */
+    private function wasLastActionNotToday(VisitProperties $visitProperties, Request $request)
+    {
+        $lastActionTime = $visitProperties->visitorInfo['visit_last_action_time'];
+
+        if (empty($lastActionTime)) {
+            return false;
+        }
+
+        $idSite = $request->getIdSite();
+        $timezone = $this->getTimezoneForSite($idSite);
+
+        if (empty($timezone)) {
+            throw new UnexpectedWebsiteFoundException('An unexpected website was found, check idSite in the request');
+        }
+
+        $date = Date::factory((int)$lastActionTime, $timezone);
+        $now = $request->getCurrentTimestamp();
+        $now = Date::factory((int)$now, $timezone);
+
+        return $date->toString() !== $now->toString();
+    }
+
+    private function getTimezoneForSite($idSite) // TODO: duplicate function in Visit
+    {
+        try {
+            $site = Cache::getCacheWebsiteAttributes($idSite);
+        } catch (UnexpectedWebsiteFoundException $e) {
+            return null;
+        }
+
+        if (!empty($site['timezone'])) {
+            return $site['timezone'];
+        }
+
+        return null;
+    }
 }
-- 
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