C:/Data/Projects/MCS EPM Global Practice/Frameworks/Public/mpfX/1.0/Libraries/Mcs.Epm.MicrosoftProject.mpFx/Proxies/CodePlex.MicrosoftProject.mpFx.Proxy.LoginWindows.cs

/*  ----------------------------------------------------------------------------
 *  Microsoft Corporation
 *  ----------------------------------------------------------------------------
 *  Microsoft Project Server mpFx (mpFx)
 *  ----------------------------------------------------------------------------
 *  Author: Colby Africa
 *  ----------------------------------------------------------------------------
 *  License: http://code.msdn.microsoft.com/mpFx/Project/License.aspx
 *  ----------------------------------------------------------------------------
 */

using System;
using System.Net;
using Mcs.Epm.MicrosoftProject.mpFx.LoginWindowsWebService;
using Microsoft.Office.Project.Server.Library;

namespace Mcs.Epm.MicrosoftProject.mpFx.Proxies
{
    public class LoginWindowsProxy : LoginWindows
    {
        private static string _ContextString = string.Empty;

        public static string ContextString
        {
            get { return _ContextString; }
            set { _ContextString = value; }
        }

        protected override WebRequest GetWebRequest(Uri uri)
        {
            WebRequest webRequest = base.GetWebRequest(uri);

            if (!string.IsNullOrEmpty(_ContextString))
            {
                webRequest.UseDefaultCredentials = true;

                webRequest.Credentials = CredentialCache.DefaultNetworkCredentials;

                webRequest.Headers.Add("PjAuth", _ContextString);
                webRequest.Headers.Add("ForwardedFrom", @"/" + ServicePaths.StatusingWebService);

                webRequest.PreAuthenticate = true;
            }

            return webRequest;
        }

        public static void SetImpersonationContext(bool isWindowsUser,
                                                   String userAccount,
                                                   Guid userGuid,
                                                   Guid trackingGuid,
                                                   Guid siteId,
                                                   String lcid)
        {
            _ContextString = GetImpersonationContext(isWindowsUser,
                                                     userAccount,
                                                     userGuid,
                                                     trackingGuid,
                                                     siteId,
                                                     lcid);
        }

        private static String GetImpersonationContext(bool isWindowsUser,
                                                      String userAccount,
                                                      Guid userGuid,
                                                      Guid trackingGuid,
                                                      Guid siteId,
                                                      String lcid)
        {
            var contextInfo = new PSContextInfo(isWindowsUser,
                                                userAccount,
                                                userGuid,
                                                trackingGuid,
                                                siteId,
                                                lcid);

            string contextString = PSContextInfo.SerializeToString(contextInfo);
            return contextString;
        }
    }
}

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