org.eclipse.mdm.application/src/main/java/org/eclipse/mdm/application/MDMRequestFilter.java

/********************************************************************************
 * Copyright (c) 2015-2018 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 ********************************************************************************/

package org.eclipse.mdm.application;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * MDMRequestFilter
 * 
 * @author Sebastian Dirsch, Gigatronik Ingolstadt GmbH
 *
 */
public class MDMRequestFilter implements Filter {

	private static final String SERVLET_NAME_MDMNENUE = "/navigator/";

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {

	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		if (request instanceof HttpServletRequest) {
			HttpServletRequest httpRequest = (HttpServletRequest) request;
			String requestedURL = httpRequest.getRequestURI().toLowerCase();

			if (requestedURL.trim().contains(SERVLET_NAME_MDMNENUE)) {
				if (response instanceof HttpServletResponse) {
					String location = httpRequest.getContextPath();
					((HttpServletResponse) response).sendRedirect(location);
				}
			} else {
				chain.doFilter(request, response);
			}
		}
	}

	@Override
	public void destroy() {
	}

}