FormsCredentials Class

Represents an object that contains the credentials used to connect to federated search locations that are configured to use forms authentication.

Inheritance Hierarchy

System.Object
  System.Net.NetworkCredential
    Microsoft.Office.Server.Search.Federation.CookieCredentials
      Microsoft.Office.Server.Search.Federation.FormsCredentials

Namespace:  Microsoft.Office.Server.Search.Federation
Assembly:  Microsoft.Office.Server.Search (in Microsoft.Office.Server.Search.dll)

Syntax

'Declaration
Public Class FormsCredentials _
    Inherits CookieCredentials

'Usage
Dim instance As FormsCredentials

public class FormsCredentials : CookieCredentials

Remarks

There are two classes that you can use to represent forms authentication data for federated search locations:

• FormsAuthCredentials
  Use this class when you programmatically configure federated locations.

• FormsCredentials
  Use this class in custom federated results Web Parts, when specifying credentials for federated locations that are configured for per user forms authentication.

Examples

The following code example demonstrates how to set the user credentials on the Federated Results Web Part data source for a custom Federated Results Web Part. You must set user credentials in this way for federated locations that are configured to use any of the per-user authentication types, with the exception of Kerberos. For more information, see Creating a Custom Federated Search Web Part with a Credentials UI.

Note

This code example is a simplified version of a custom Federated Results Web Part; it does not include the full code needed to prompt the user for their credentials. For a more complete example that demonstrates how to do this, see Custom Federated Search Web Part Sample.

using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using Microsoft.Office.Server.Search.WebControls;
using Microsoft.Office.Server.Search.Administration;
using Microsoft.Office.Server.Search.Federation;
using System.Security;
using System.Web.UI.HtmlControls;
using Microsoft.SharePoint;
using System.Xml.Serialization;
using System.Xml.XPath;

namespace CustomFedSearchSample
{
    [XmlRoot(Namespace = "CustomFederatedResultsWebPart")]
    public class SampleFederatedResultsWebPart : FederatedResultsWebPart, IPostBackEventHandler
    {
        protected override void OnLoad(EventArgs e)
        {
            try
            {
                this.ShowMessages = false;
                base.OnLoad(e);
            }
            catch (Exception ex)
            {
                string x = ex.Message.ToString();
            }
        }

        protected override void ConfigureDataSourceProperties()
        {
            ICredentials userCredentials = null;
            base.ConfigureDataSourceProperties();
            FederatedResultsDatasource fedResultsDS = this.DataSource as FederatedResultsDatasource;
            LocationConfiguration locationConfig = null;

            if (fedResultsDS.Location != null)
            {
                string locationName = fedResultsDS.Location;
                LocationConfigurationCollection locations = SearchContext.Current.LocationConfigurations;
                locations.TryGetLocationConfigurationByInternalName(locationName, out locationConfig);

                switch (locationConfig.AuthInfo.AuthenticationType)
                {
                    case FederationAuthType.PerUserFormsAuthentication:
                        //Replace FormsLogonURL with the URL to the Forms logon page.
                        string logonURL = "http://FormsLogonURL";
                        //Replace FormMethod with post or get.
                        string logonMethod = FormMethod";
                        Dictionary<string, string> logonInput = new Dictionary<string, string>();
                        /*
                         *Code to compute logon input names and values for forms
                         *logon page, and add them to the Dictionary object goes here.
                         */ 
                        Dictionary<string, SecureString> logonSecureInput = new Dictionary<string, SecureString>();
                        /*
                         *Code to compute logon input names and System.Security.SecureString values
                         *for forms logon page and add them to the Dictionary object goes here.
                         */ 
                        CookieCollection formsLogonCookies = new CookieCollection();
                        userCredentials = new FormsCredentials(logonURL, logonURL, logonInput, logonSecureInput, logonMethod, formsLogonCookies);
                        break;

                    case FederationAuthType.PerUserCookie:
                        CookieCollection logonCookies = new CookieCollection();
                        /*
                         *Code to compute logon cookies and add them
                         *to the cookie collection goes here.
                         */
                        userCredentials = new CookieCredentials(logonCookies);
                        break;

                    case FederationAuthType.PerUserNTLM:
                    case FederationAuthType.PerUserBasicAuth:
                    case FederationAuthType.PerUserDigest:
                        /*
                         *Replace username< > with the Windows account.
                         *Replace domain with the Windows domain name.
                         *Replace password with the password for the Windows account.
                         */
                        string user = username";
                        string domain = "domain";
                        string password = "password";
                        userCredentials = new NetworkCredential(user, password, domain);
                        break;

                    default:
                        break;
                }
                if (fedResultsDS.UserCredentials.ContainsKey(locationName))
                {
                    fedResultsDS.UserCredentials.Remove(locationName);
                }

                if (userCredentials != null)
                {
                    fedResultsDS.UserCredentials.Add(locationName, userCredentials);
                }
            }
        }

        protected override XPathNavigator GetXPathNavigator(string viewPath)
        {
            XPathNavigator federatedResults;
            federatedResults = base.GetXPathNavigator(viewPath);

            if (federatedResults == null)
            {
                ShowLogonControls();
            }
            else
            {
                ShowLogoutControls();
            }

            return federatedResults;
        }

        private void ShowLogonControls()
        {
            //Code to display logon controls goes here.
        }

        private void ShowLogoutControls()
        {
        //Code to display logout controls
        }
    }
}

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

FormsCredentials Members

Microsoft.Office.Server.Search.Federation Namespace

UserCredentials

Other Resources

Custom Federated Search Web Part Sample

Federated Search Overview

Creating a Custom Federated Search Web Part with a Credentials UI