HTTPMODELIB

using System;
using System.Collections.Generic;
using System.Web.SessionState;
using System.Text;
using System.IO;
using System.Web;
using MyLib;

namespace NDRcw
{
    public class CDealLabel : IHttpModule
    {
        public void Init(HttpApplication application)
        {          
           application.BeginRequest += (new EventHandler(this.Application_BeginRequest));
           application.AcquireRequestState += new EventHandler(application_AcquireRequestState);
        }
        void application_AcquireRequestState(object sender, EventArgs e)        //检查用户是否登录、是否有权限
        {

            // 获取应用程序
            HttpApplication Application = (HttpApplication)sender;
            HttpRequest request = Application.Context.Request;
            HttpResponse response = Application.Context.Response;

            string sFile = request.PhysicalPath.Trim();
            string sPath = request.Path.Trim();
            if (CFunc.StrLeft(sPath, 1) == "/") sPath = CFunc.StrRight(sPath, sPath.Length - 1);
            string[] sAryPath=sPath.Split(new char[] { '/' });

            string sDirectory=sAryPath[0].ToLower().Trim();
            if(sDirectory!="manage") return;
            string sFileName = Path.GetFileName(sFile).ToLower();
            if (sFileName == "index.aspx") return;

            //检查用户是否已经登录
            string sUserID=CFunc.ToString(Application.Context.Session["UserID"]);
            if (sUserID.Trim() == "")
            {
                Application.Server.Transfer("/manage/index.aspx");
            }
           
            //检查用户权限
            //TODO
            CUserInfo server = new CUserInfo();
            int iPower = server.CheckPower(sFileName, sUserID);
            if (iPower == 0)
            {
                Application.Server.Transfer("/manage/error.htm");
            }
        }
        private void Application_BeginRequest(Object source, EventArgs e)        //处理前台标签
       {
           HttpApplication Application = (HttpApplication)source;
           HttpRequest request = Application.Context.Request;
           HttpResponse response = Application.Context.Response;
           HttpServerUtility httpSvr = Application.Context.Server;
           HttpSessionState mySession=Application.Context.Session;

           string sFile = request.PhysicalPath.Trim();
           string sPath = request.Path.Trim();
           if (CFunc.StrLeft(sPath, 1) == "/") sPath = CFunc.StrRight(sPath, sPath.Length - 1);
           string[] sAryPath=sPath.Split(new char[] { '/' });

           string sDirectory=sAryPath[0].ToLower().Trim();
           switch(sDirectory)
           {
               case "usersite":
                   if (Path.GetExtension(sFile).ToLower().Trim() != ".aspx") return;

                   StreamReader sr = new StreamReader(sFile);
                   string sHtml = sr.ReadToEnd();
                   sr.Close();
                   if (sHtml.IndexOf("{$") > 0)
                   {
                       System.Text.StringBuilder sb = new StringBuilder();
                       httpSvr.Execute(request.RawUrl, new System.IO.StringWriter(sb));
                       sHtml = sb.ToString();

                       CLabelInfo server = new CLabelInfo();
                       sHtml = server.DealTemplate(sHtml, request.QueryString);
                       response.Write(sHtml);
                       response.End();
                   }
                   break;
           }
       }
       public void Dispose()
       {
       }
  }
}