| Horde_Controller | Interface for all controller objects |
| Horde_Controller_FilterCollection | Interface for an object that houses a collection of pre/post filters. |
| Horde_Controller_PostFilter | Interface for filters that are executed after the controller has generated the response |
| Horde_Controller_PreFilter | Interface for filters to be run before the controller is executed |
| Horde_Controller_Request | Interface for a request object |
| Horde_Controller_RequestConfiguration | |
| Horde_Controller_ResponseWriter | |
| Horde_Controller_SettingsExporter | Interface for the object that builds a request chain around a controller. |
| Horde_Controller_Base | Base class for controllers that implements the Logged, Injected, and Viewed interfaces. |
| Horde_Controller_Exception | |
| Horde_Controller_Filter_Gzip | Filter to gzip content before being served |
| Horde_Controller_FilterRunner | Collects filters and executes them around a controller |
| Horde_Controller_Null | Null controller object. Useful for filter tests that don't use the controller object. |
| Horde_Controller_Request_Http | |
| Horde_Controller_Request_Mock | |
| Horde_Controller_Request_Null | Null request object. |
| Horde_Controller_Response | |
| Horde_Controller_ResponseWriter_Web | |
| Horde_Controller_ResponseWriter_WebDebug | |
| Horde_Controller_Runner | Class to execute the controller request |
| Horde_Controller_SettingsExporter_Default | Default controller request builder |
| Horde_Controller_UrlWriter | URL generation utility for controllers |