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diff --git a/src/libfast/controller.h b/src/libfast/controller.h
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+++ b/src/libfast/controller.h
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+/*
+ * Copyright (C) 2007 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * $Id: controller.h 3489 2008-02-22 09:40:58Z martin $
+ */
+
+/**
+ * @defgroup controller_i controller
+ * @{ @ingroup libfast
+ */
+
+#ifndef CONTROLLER_H_
+#define CONTROLLER_H_
+
+#include "request.h"
+#include "context.h"
+
+typedef struct controller_t controller_t;
+
+/**
+ * Constructor function for a controller.
+ *
+ * @param context		session specific context, implements context_t
+ * @param param			user supplied param, as registered to the dispatcher
+ */
+typedef controller_t *(*controller_constructor_t)(context_t* context, void *param);
+
+/**
+ * Controller interface, to be implemented by users controllers.
+ *
+ * Controller instances get created per session, so each session has an
+ * associated set of private controller instances.
+ * The controller handle function is called for each incoming request.
+ */
+struct controller_t {
+	
+	/**
+	 * Get the name of the controller.
+	 *
+	 * @return				name of the controller
+	 */
+	char* (*get_name)(controller_t *this);
+	
+	/**
+	 * Handle a HTTP request for that controller.
+	 *
+	 * Request URLs are parsed in the form
+	 * controller_name/p1/p2/p3/p4/p5 with a maximum of 5 parameters. Each
+	 * parameter not found in the request URL is set to NULL.
+	 *
+	 * @param request		HTTP request
+	 * @param p1			first parameter
+	 * @param p2			second parameter
+	 * @param p3			third parameter
+	 * @param p4			forth parameter
+	 * @param p5			fifth parameter
+	 * @return
+	 */
+	void (*handle)(controller_t *this, request_t *request,
+				   char *p1, char *p2, char *p3, char *p4, char *p5);
+		
+	/**
+	 * Destroy the controller instance.
+	 */
+	void (*destroy) (controller_t *this);
+};
+
+#endif /* CONTROLLER_H_ @} */