FormsIdentity FormsIdentity FormsIdentity FormsIdentity Class

Definition

Represents a user identity authenticated using forms authentication. This class cannot be inherited.

public ref class FormsIdentity : System::Security::Claims::ClaimsIdentity
[System.Runtime.InteropServices.ComVisible(false)]
[System.Serializable]
public class FormsIdentity : System.Security.Claims.ClaimsIdentity
type FormsIdentity = class
    inherit ClaimsIdentity
Public Class FormsIdentity
Inherits ClaimsIdentity
Inheritance
FormsIdentityFormsIdentityFormsIdentityFormsIdentity
Attributes

Examples

The following code example generates a FormsAuthenticationTicket and then uses it to create an instance of the FormsIdentity class, based on whether the user supplies the correct user name and password on the form.

<%@ Page Language="C#" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<%@ Import Namespace="System.Globalization" %>
<%@ Import Namespace="System.Web.Security" %>
<script runat="server">
    protected void Login_Click(object sender, EventArgs e)
    {
        bool isAuthenticated = false;
        if (string.Compare(UserNameTextBox.Text, "UserName", true,
        CultureInfo.InvariantCulture) == 0)
        {
            if (string.Compare(PasswordTextBox.Text, "Password", true,
            CultureInfo.InvariantCulture) == 0)
            {
                isAuthenticated = true;
            }
        }
        else isAuthenticated = false;
        
        // Create the formsIdentity for the user.
        CreateformsIdentity(UserNameTextBox.Text, isAuthenticated);
    }
    private void CreateformsIdentity(string userName, bool isAuthenticated)
    {
        FormsIdentity formsID;
        FormsAuthenticationTicket authenticationTicket;
        
        if (isAuthenticated)
        {
            // If authentication passed, create a ticket 
            // as a Manager that expires in 15 minutes.
            authenticationTicket = new FormsAuthenticationTicket(1, userName,
                DateTime.Now, DateTime.Now.AddMinutes(15), false, "Manager");
        }
        else
        {
            // If authentication failed, create a ticket 
            // as a guest that expired 5 minutes ago.
            authenticationTicket = new FormsAuthenticationTicket(1, userName,
                DateTime.Now, DateTime.Now.Subtract(new TimeSpan(0, 5, 0)),
                false, "Guest");
        }

        // Create form identity from FormsAuthenticationTicket.
        formsID = new FormsIdentity(authenticationTicket);
        Response.Clear();
        Response.Write("Authentication Type: " + formsID.AuthenticationType +
            "<BR>");

        // Get FormsAuthenticationTicket from the FormIdentity
        FormsAuthenticationTicket ticket = formsID.Ticket;
        if (ticket.Expired)
        {
            Response.Write("Authentication failed, so the role is set to " +
                ticket.UserData);
        }
        else
        {
            Response.Write("Authentication succeeded, so the role is set to " +
                ticket.UserData);
        }
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
    <head>
        <title>WebForm1</title>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <asp:Label id="UserIdLabel" runat="server"
                style="left: 144px; position: absolute; top: 160px">
                User-ID:</asp:Label>
            <asp:Label id="PasswordLabel" runat="server"
                style="left: 144px; position: absolute; top: 200px">
                Password:</asp:Label>
            <asp:TextBox id="UserNameTextBox" runat="server"
                style="left: 232px; position: absolute; top: 160px;
                width:182px; height:22px"></asp:TextBox>
            <asp:TextBox id="PasswordTextBox" runat="server"
                style="left: 232px; position: absolute; top: 200px;
                width:181px; height:22px" TextMode="Password">
                </asp:TextBox>
            <asp:Button id="Login" runat="server" Text="Login"
                style="left: 232px; position: absolute; top: 232px; 
                width:100px" OnClick="Login_Click"></asp:Button>
        </form>
    </body>
</html>
<%@ Page Language="vb" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<%@ Import Namespace="System.Globalization" %>
<script runat="server">
    Private Sub Login_Click(ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Login.Click

        ' For the example, the user name must be "UserName" and the password
        ' must be "Password" for authentication to succeed.
        Dim isAuthenticated As Boolean
        If String.Compare(UserNameTextBox.Text, "UserName", True, _
            CultureInfo.InvariantCulture) = 0 Then
            If String.Compare(PasswordTextBox.Text, "Password", True, _
                CultureInfo.InvariantCulture) = 0 Then
                isAuthenticated = True
            End If
        Else
            isAuthenticated = False
        End If

        ' Create the FormsIdentity for the user.
        CreateFormsIdentity(UserNameTextBox.Text, isAuthenticated)

    End Sub

    Private Sub CreateFormsIdentity(ByVal userName As String, _
        ByVal isAuthenticated As Boolean)

        Dim formsId As System.Web.Security.FormsIdentity
        Dim authenticationTicket As _
            System.Web.Security.FormsAuthenticationTicket

        If isAuthenticated Then
            ' If authentication passed, create a ticket 
            ' as a Manager that expires in 15 minutes.
            authenticationTicket = _
                New FormsAuthenticationTicket(1, userName, DateTime.Now, _
                DateTime.Now.AddMinutes(15), False, "Manager")
        Else
            ' If authentication failed, create a ticket 
            ' as a guest that expired 5 minutes ago.
            authenticationTicket = _
                New FormsAuthenticationTicket(1, userName, DateTime.Now, _
                DateTime.Now.Subtract(New TimeSpan(0, 5, 0)), False, "Guest")
        End If

        ' Create form identity from FormsAuthenticationTicket.
        formsId = New FormsIdentity(authenticationTicket)

        Response.Clear()
        Response.Write("Authenticate Type: " & _
            formsId.AuthenticationType & "<BR>")

        ' Get FormsAuthenticationTicket from the FormIdentity
        Dim ticket As FormsAuthenticationTicket = formsId.Ticket()
        If ticket.Expired Then
            Response.Write("Authentication failed, so the role is set to " & _
                ticket.UserData)
        Else
            Response.Write("Authentication succeeded, so the role is set to " & _
                ticket.UserData)
        End If
    End Sub

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
    <head>
        <title>WebForm1</title>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <asp:Label id="UserIdLabel" runat="server"
                style="left: 144px; position: absolute; top: 160px">
                User-ID:</asp:Label>
            <asp:Label id="PasswordLabel" runat="server"
                style="left: 144px; position: absolute; top: 200px">
                Password:</asp:Label>
            <asp:TextBox id="UserNameTextBox" runat="server"
                style="left: 232px; position: absolute; top: 160px;
                width:182px; height:22px"></asp:TextBox>
            <asp:TextBox id="PasswordTextBox" runat="server"
                style="left: 232px; position: absolute; top: 200px;
                width:181px; height:22px" TextMode="Password">
                </asp:TextBox>
            <asp:Button id="Login" runat="server" Text="Login"
                style="left: 232px; position: absolute; top: 232px; 
                width:100px"></asp:Button>
        </form>
    </body>
</html>

Remarks

The FormsIdentity class is used by the FormsAuthenticationModule when a user is authenticated with forms authentication. An instance of the FormsIdentity class is created using the FormsAuthenticationTicket that is decrypted from the forms-authentication cookie or from the URL. The new instance of the FormsIdentity class is used to construct a new GenericPrincipal object that is set as the value of the User property for the current HttpContext.

Constructors

FormsIdentity(FormsAuthenticationTicket) FormsIdentity(FormsAuthenticationTicket) FormsIdentity(FormsAuthenticationTicket) FormsIdentity(FormsAuthenticationTicket)

Initializes a new instance of the FormsIdentity class.

FormsIdentity(FormsIdentity) FormsIdentity(FormsIdentity) FormsIdentity(FormsIdentity) FormsIdentity(FormsIdentity)

Initializes a new instance of the FormsIdentity class based on the specified identity.

Properties

AuthenticationType AuthenticationType AuthenticationType AuthenticationType

Gets the type of authenticated identity.

Claims Claims Claims Claims

Gets the collection of claims that are associated with this identity.

IsAuthenticated IsAuthenticated IsAuthenticated IsAuthenticated

Gets a value that indicates whether authentication took place.

Name Name Name Name

Gets the user name of the forms identity.

Ticket Ticket Ticket Ticket

Gets the FormsAuthenticationTicket for the forms-authentication user identity.

Methods

Clone() Clone() Clone() Clone()

Gets a copy of the current FormsIdentity instance.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Applies to

See also