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Posted 2 Nov 2003

Custom Authentication provider by implementing IHttpModule, IPrincipal and IIdentity

, 2 Nov 2003
An article on writing Custom Authentication provider in ASP.NET
using System;
using System.Web;
using System.Web.UI;
using System.Collections;

using CustomSecurity;
namespace CustomAuthenticationDemo
	/// <summary>
	/// Summary description for Login.
	/// </summary>
	public class Login : System.Web.UI.Page
		protected System.Web.UI.WebControls.TextBox username;
		protected System.Web.UI.WebControls.TextBox password;
		protected System.Web.UI.WebControls.Button Button1;
		private void Page_Load(object sender, System.EventArgs e)
			// Put user code to initialize the page here

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Load += new System.EventHandler(this.Page_Load);


		private void Button1_Click(object sender, System.EventArgs e)
			//Write your own Authentication logic here
			if(this.username.Text != "" && this.password.Text !="")
				//Write your own code to get the User Roles 
				ArrayList roles = new ArrayList();
				if(this.username.Text == "superuser")
				//Convert roles into pipe "|" separated string
				System.Text.StringBuilder strRoles = new System.Text.StringBuilder();
				foreach(string role in roles)

				CustomIdentity userIdentity = new CustomIdentity(this.username.Text, 1, true, 
					true, this.username.Text, "", strRoles.ToString());

				CustomPrincipal principal = new CustomPrincipal(userIdentity, roles);
				Context.User = principal;
				//string estr = CustomAuthentication.Encrypt(userIdentity);

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About the Author

I Piscean
Web Developer
United States United States
No Biography provided

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Web03 | 2.8.171207.1 | Last Updated 3 Nov 2003
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