global.asax.cs

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/**
*	北京林业大学 计00-3班 吴鹏组编写
*	组员：高显俊，郗嘉，吴鹏，王海，苏荣
*	最后生成时间：	2003.5.31
*	本网站借鉴了dotnetjunkies网站的背景和CSS,特此声明
*	并提供一切源代码，遵守GPL版权声明
*	GPL版权声明在doc/license.txt中，人员分工在doc/summary.txt中
*	开发标准在doc/programming standard.doc中，需求声明在doc/requirements.doc中
*	开发计划在doc/plans.doc中，面向对象软件设计说明书在doc/brochure.doc 中
*/
using System;
using System.Collections;
using System.ComponentModel;
using System.Web;
using System.Web.SessionState;
using System.Security;
using System.Security.Principal;
using System.Web.Security;

using Park.Common;

namespace Park 
{
	/// <summary>
	/// Global 的摘要说明。
	/// </summary>
	public class Global : System.Web.HttpApplication
	{
		public Global()
		{
			InitializeComponent();
		}	
		

		#region Web Form Designer generated code
		/// <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()
		{    
			// 
			// Global
			// 
			this.AuthenticateRequest += new System.EventHandler(this.Park_AuthenticateRequest);

		}
		#endregion

		/// <summary>
		/// Add Database Access to Verify User
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void Park_AuthenticateRequest(object sender, System.EventArgs e)
		{
			//Execute First
			//TODO:Add Database Access to Verify User


			HttpCookie cookie=Request.Cookies[CookieKey.Ticket];
			// Create the roles cookie if it doesn't exist yet for this session.
			if ( cookie== null || cookie.Value == "") 
			{
        
				// Create a cookie authentication ticket.
				FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
					1,                              // version
					ConfigurationKey.DefaultUser,     // user name
					DateTime.Now,                   // issue time
					DateTime.Now.AddHours(1),       // expires every hour
					false,                          // don't persist cookie
					""                         // roles
					);

				// Encrypt the ticket
				String cookieStr = FormsAuthentication.Encrypt(ticket);

				// Send the cookie to the client
				Response.Cookies[CookieKey.Ticket].Value = cookieStr;
				Response.Cookies[CookieKey.Ticket].Path = "/";
				Response.Cookies[CookieKey.Ticket].Expires = DateTime.Now.AddMinutes(1);

				// Add our own custom principal to the request containing the roles in the auth ticket
				Context.User = new GenericPrincipal(new GenericIdentity(ConfigurationKey.DefaultUser), new string[]{""});
			}
			else 
			{
				// Get roles from roles cookie
				FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(Context.Request.Cookies[CookieKey.Ticket].Value);
				
				// Add our own custom principal to the request containing the roles in the auth ticket
				Context.User = new GenericPrincipal(new GenericIdentity(ticket.Name), new string[]{""});
			}
  		}
/*
		/// <summary>
		/// Global application level error handling. This method is invoked 
		/// anytime an exception is thrown. 
		/// </summary>
		/// <param name="sender">Sender</param>
		/// <param name="e">Event arguments</param>
		private void Application_Error(object sender, System.EventArgs e) 
		{
			string err = "Park Application Error\n\n";
			err += "Request: " + Request.Url.ToString() + "\n\n";
			err += "Strack Trace: \n" + Server.GetLastError().ToString();

			// write the error message to the NT Event Log
			Common.Error.Log(err);
		}
*/
	}
}