chklogin.aspx.cs

C#写的一个简单论坛原代码。 比较简单

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
using System.Configuration;
using System.Text;
using System.Web.Security;
using System.Security.Cryptography;

namespace yezhuforum
{
	/// <summary>
	/// chklogin 的摘要说明。
	/// </summary>
	public class chklogin : System.Web.UI.Page
	{   public string s1;
		public string s2;
		protected int intRunTime;
		protected DateTime dtStartTime = DateTime.Now;
		protected System.Data.OleDb.OleDbCommand cmd;
		protected System.Data.OleDb.OleDbConnection conn;
		public int cookdate;
		public    DataSet dsuser;
		private void Page_Load(object sender, System.EventArgs e)
		{  			         
			s1=(FormsAuthentication.HashPasswordForStoringInConfigFile(Request.Form["password"].ToString().Trim(),"MD5"));
			s2=s1.Substring(8,s1.Length-16);

			conn = new OleDbConnection(ConfigurationSettings.AppSettings["cnFriends.ConnectionString"]);		
			cmd=new OleDbCommand("select u_User from userinfo where u_User='"+Request.Form["username"]+"' and u_pass='"+s2+"'",conn);
			dsuser=new DataSet();
			OleDbDataAdapter adWord=new OleDbDataAdapter("select u_grade,u_iflock from userinfo where u_User='"+Request.Form["username"]+"' and u_pass='"+s2+"'",conn);
			adWord.Fill(dsuser,"userinfo");

			OleDbDataReader objDataReader ;		
			cmd.Connection.Open();
			objDataReader = cmd.ExecuteReader();
			if (objDataReader.Read() == true) 
			{   
				if (Convert.ToInt32(dsuser.Tables[0].Rows[0]["u_iflock"])==1)
				{
					Response.Redirect("user_lock.aspx");
				}
                cookdate=Convert.ToInt32(Request.Form["CookieDate"]); 
				if (Convert.ToInt32(Request.Form["CookieDate"])!=0)					
				{
					Response.Cookies["jusername"].Value=""+Request.Form["username"]+"";
					Response.Cookies["jusername"].Expires=DateTime.Now.AddDays(cookdate);
					Response.Cookies["jpassword"].Value=""+Request.Form["password"]+"";
					Response.Cookies["jpassword"].Expires=DateTime.Now.AddDays(cookdate);
					Response.Cookies["jpower"].Value=Convert.ToString(dsuser.Tables[0].Rows[0]["u_grade"]);
					Response.Cookies["jpower"].Expires=DateTime.Now.AddDays(cookdate);
					Response.Cookies["jhidden"].Value=""+Request.Form["hidden"]+"";
					Response.Cookies["jhidden"].Expires=DateTime.Now.AddDays(cookdate);					
					Response.Redirect("logininfor.aspx");
				}	
				else
				{
					Response.Cookies["jusername"].Value=""+Request.Form["username"]+"";				
					Response.Cookies["jpassword"].Value=""+Request.Form["password"]+"";	
					Response.Cookies["jpower"].Value=Convert.ToString(dsuser.Tables[0].Rows[0]["u_grade"]);
					Response.Cookies["jhidden"].Value=""+Request.Form["hidden"]+"";
					Response.Redirect("logininfor.aspx");
				}	
			}	
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}