AuthenticationFilter.java

/*******************************************************************************
 * Signavio Core Components
 * Copyright (C) 2012  Signavio GmbH
 * 
 * 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 3 of the License, or
 * (at your option) any later version.
 * 
 * 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.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
/**
 * 
 */
package com.signavio.platform.filters;

import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

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;

import com.signavio.platform.exceptions.RequestException;
import com.signavio.platform.security.business.FsAccessToken;

/**
 * This filter has to check, if an access token is available
 * in the session. 
 * 
 * 
 * 
 * @author Nicolas Peters
 *
 */
public class AuthenticationFilter implements Filter {
	
	public void destroy() {
		
	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		
		
		if(request instanceof HttpServletRequest) {
			HttpServletRequest req = (HttpServletRequest) request;
			HttpServletResponse res = (HttpServletResponse) response;
			// ISSUE : Added this line in order to have correct token
			req.getSession().setAttribute("token", FsAccessToken.getDummy());
			
			chain.doFilter(request, response);
		}
	}

	public void init(FilterConfig config) throws ServletException {
		
	}

}