bloglinkfilter.java

来自「cwbbs 云网论坛源码」· Java 代码 · 共 61 行

package com.redmoon.blog;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import cn.js.fan.util.StrUtil;


public class BlogLinkFilter implements Filter {
    FilterConfig config;
    public static Config cfg = Config.getInstance();

    public void doFilter(ServletRequest req, ServletResponse res,
                         FilterChain chain) throws ServletException,
            IOException {
        if (req instanceof HttpServletRequest) {
            if (cfg.getBooleanProperty("isDomainMapToPath")) {
                HttpServletRequest request = (HttpServletRequest) req;
                
                
                
                String uri = request.getRequestURI();
                
                if (uri.indexOf(".")==-1) {
                    int p = uri.indexOf("blog");
                    String domainField = uri.substring(p + 5);
                    if (!domainField.equals("") && !domainField.startsWith("admin")) {
                        String url = "myblog.jsp?blogId=";

                        if (StrUtil.isNumeric(domainField)) {
                            url += domainField;
                        } else {
                            UserConfigDb ucd = new UserConfigDb();
                            long blogId = ucd.getBlogIdByDomain(domainField);
                            url += blogId;
                        }

                        

                        RequestDispatcher rd = req.
                                               getRequestDispatcher(
                                url);
                        
                        rd.forward(req, res);
                        return;
                    }
                }
            }
            chain.doFilter(req, res);
        }
    }

    public void init(FilterConfig config) throws ServletException {
        this.config = config;
    }

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