refs #6577 Return HTTP 204 instead of GIF for JavaScript tracking.

added a new url parameter send_image=0 to disable sending an
image and instead response with a 204 code

1 files changed, 11 insertions, 0 deletions

diff --git a/libs/PiwikTracker/PiwikTracker.php b/libs/PiwikTracker/PiwikTracker.php
index 39eb82b6bd..c998e1913d 100644
--- a/libs/PiwikTracker/PiwikTracker.php
+++ b/libs/PiwikTracker/PiwikTracker.php
@@ -219,6 +219,8 @@ class PiwikTracker
         $this->doBulkRequests = false;
         $this->storedTrackingActions = array();
 
+        $this->sendImageResponse = true;
+
         $this->visitorCustomVar = $this->getCustomVariablesFromCookie();
     }
 
@@ -501,6 +503,14 @@ class PiwikTracker
     }
 
     /**
+     * If image response is disabled Piwik will respond with a HTTP 204 header instead of responding with a gif.
+     */
+    public function disableSendImageResponse()
+    {
+        $this->sendImageResponse = false;
+    }
+
+    /**
      * Fix-up domain
      */
     static protected function domainFixup($domain)
@@ -1524,6 +1534,7 @@ class PiwikTracker
             (!empty($this->city) ? '&city=' . urlencode($this->city) : '') .
             (!empty($this->lat) ? '&lat=' . urlencode($this->lat) : '') .
             (!empty($this->long) ? '&long=' . urlencode($this->long) : '') .
+            (!$this->sendImageResponse ? '&send_image=0' : '') .
 
             // DEBUG
             $this->DEBUG_APPEND_URL;