securityfilter.java

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/* 
 * Created on 2007-3-8
 * Last modified on 2007-3-8
 * Powered by YeQiangWei.com
 */
package com.yeqiangwei.club.filter;

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;

//import org.apache.log4j.Logger;

import com.yeqiangwei.club.controller.action.UserAction;
import com.yeqiangwei.club.service.security.UserPower;
import com.yeqiangwei.util.Validator;


public class SecurityFilter implements Filter {
	
	///private static final Logger logger = Logger.getLogger(SecurityFilter.class.getName());
	
	protected FilterConfig filterConfig = null;
	
	private UserPower userPower;
	
	private UserAction userAction;
	
	public void init(FilterConfig filterConfig) throws ServletException {
		 this.filterConfig = filterConfig;
	}

	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) 
		throws IOException, ServletException
	{
		HttpServletRequest request = (HttpServletRequest) req;
		HttpServletResponse response = (HttpServletResponse) res;
		this.getUserAction().loginInit(request,response);
		boolean permission = this.getUserPower().canAccess(request,response);
		if(permission){
			chain.doFilter(request,response);
		}else{
			return ;
		}
	}

	public void destroy() {
		this.filterConfig = null;
	}

	public UserPower getUserPower() {
		if(userPower==null){
			userPower = new UserPower();
		}
		return userPower;
		
	}


	public UserAction getUserAction() {
		if(Validator.isEmpty(userAction)){
			userAction = new com.yeqiangwei.club.controller.action.UserAction();
		}
		return userAction;
	}


}