package com.tool;

import java.io.IOException;
import java.util.Locale;

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 javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import com.bean.AccountAndGroup;

import org.apache.struts.Globals;

/**
 *
 * <p>Title: </p>
 *
 * <p>Description: 對(duì)未登陸用戶進(jìn)行過(guò)濾</p>
 *
 * <p>Copyright: Copyright (c) 2007</p>
 *
 * <p>Company: </p>
 *
 * @author 詹偉勝
 * @version 1.0
 */
public class LoginFilter implements Filter {
    private String managerName;
    private String pwd;
    public void init(FilterConfig filterConfig) throws ServletException {
        this.managerName = filterConfig.getInitParameter("managerName");
        this.pwd = filterConfig.getInitParameter("pwd");
    }

    public void doFilter(ServletRequest request,
                         ServletResponse response,
                         FilterChain filterChain) throws IOException,
            ServletException {
        HttpServletRequest request2 = (HttpServletRequest) request;
        HttpServletResponse response2 = (HttpServletResponse) response;
        HttpSession session = request2.getSession();
        String requestUri = request2.getRequestURI();
        String rootStr = request2.getContextPath();
        String requestURL = request2.getRequestURL().toString() + "?" +
                            request2.getQueryString();
//        System.out.println(request2.getLocalName());
//        System.out.println("requestURL="+requestURL);
//        System.out.println(request2.getPathInfo());
//        System.out.println(request2.getProtocol());
        if (rootStr == null) rootStr = "";
        if (!rootStr.equals("")) rootStr = rootStr + "/";
        AccountAndGroup acountAndGroup = (AccountAndGroup) session.getAttribute(
                "loginAcountAndGroup");
        //不需控制的URL
        if (requestUri.indexOf("index.jsp") != -1 ||
            requestUri.indexOf("error.jsp") != -1 ||
            requestUri.indexOf("loginAction.do") != -1 ||
            requestUri.equals("/")||
            requestUri.equals(rootStr)||
                (requestUri.indexOf(".js")!=-1&&requestUri.indexOf(".jsp")==-1)){
//                System.out.println("1");//----------------
                filterChain.doFilter(request2, response);
            }
        else if (acountAndGroup == null) { //客戶還未登陸
            session.setAttribute("msg", "您還未登陸或登陸超時(shí)!");
            response2.sendRedirect(request2.getContextPath() +
                                   "/frameset/error.jsp");
        } else { //客戶已登陸，對(duì)其權(quán)限進(jìn)行控制
            //不需進(jìn)行控制的共用URL
            if (requestURL.indexOf("/css/") != -1 ||
                requestURL.indexOf("/frameset/") != -1 ||
                requestUri.indexOf("modifySelfAcount.jsp")!=-1||
                requestURL.indexOf("/js/") != -1){
//                 System.out.println("2");//----------------
                filterChain.doFilter(request2, response);
            }
            //管理員不需控制
            else if (acountAndGroup.getAccountName().equals(this.managerName) &&
                     acountAndGroup.getPwd().equals(this.pwd)) {
//                System.out.println("3");//--------------------
                filterChain.doFilter(request2, response);
            }
            //其它URL都必需進(jìn)行權(quán)限控制
            else {
                String[] allRoleUrl = (String[]) session.getAttribute(
                        "loginAllRoleUrl");
                int isValidate = 0;
                System.out.println("requestURL=" + requestURL);//-----------------
                for (int i = 0; i < allRoleUrl.length; i++) {
                     System.out.println("allRoleUrl["+i+"]=#"+allRoleUrl[i]+"#");//------------------
                    if (requestURL.indexOf(allRoleUrl[i]) != -1) {
                        isValidate = 1;
                        break;
                    }
                }
                if (isValidate == 1) {
                    filterChain.doFilter(request2, response);
                } else {
                    session.setAttribute("msg", "權(quán)限不足！");
                    response2.sendRedirect(request2.getContextPath() +
                                           "/frameset/error.jsp");

                }
            }
        }
    }

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