<reponame>lebisous/walk<gh_stars>1-10
package org.walkframework.base.system.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.http.HttpStatus;

/**
 * 不允许直接访问jsp 所有对jsp的直接访问，跳转到404页面
 * 
 */
public class JspFilter implements Filter {
	
	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest httpServletRequest = (HttpServletRequest) request;
		String url = httpServletRequest.getRequestURI();
		if (url != null && url.toLowerCase().endsWith(".jsp")) {
			((HttpServletResponse) response).sendError(HttpStatus.SC_NOT_FOUND);
			return ;
		}
		chain.doFilter(request, response);
	}

	@Override
	public void destroy() {

	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
	}

}