diff --git a/inc/CalDAVRequest.php b/inc/CalDAVRequest.php
index ae86d4c6..40707d87 100644
--- a/inc/CalDAVRequest.php
+++ b/inc/CalDAVRequest.php
@@ -28,6 +28,16 @@ class CalDAVRequest
 {
   var $options;
 
+  /**
+  * The raw data sent along with the request
+  */
+  var $raw_post;
+
+  /**
+  * The HTTP request method: PROPFIND, LOCK, REPORT, OPTIONS, etc...
+  */
+  var $method;
+
   /**
   * The depth parameter from the request headers, coerced into a valid integer: 0, 1
   * or DEPTH_INFINITY which is defined above.  The default is set per various RFCs.
@@ -39,6 +49,11 @@ class CalDAVRequest
   */
   var $principal;
 
+  /**
+  * The user agent making the request.
+  */
+  var $user_agent;
+
   /**
   * Create a new CalDAVRequest object.
   */
@@ -55,6 +70,8 @@ class CalDAVRequest
     }
     $this->method = $_SERVER['REQUEST_METHOD'];
 
+    $this->user_agent = ((isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : "Probably Mulberry"));
+
     /**
     * A variety of requests may set the "Depth" header to control recursion
     */