/**
  * This method intercepts GET requests to non-files, and changes it into an HTTP PROPFIND request 
  * 
  * @param string $method 
  * @return bool 
  */
 public function httpGetInterceptor($method)
 {
     if ($method != 'GET') {
         return true;
     }
     $node = $this->server->tree->getNodeForPath($this->server->getRequestUri());
     if ($node instanceof Sabre_DAV_IFile) {
         return true;
     }
     $this->server->httpPropFind();
     return false;
 }