Azure Active Directory Token With Create User and Login

#region

using System;

using System.Threading.Tasks;

using System.Web.WebPages;

using Microsoft.Azure.ActiveDirectory.GraphClient;

using Microsoft.IdentityModel.Clients.ActiveDirectory;

using System.Web;

using satya.Models;

#endregion

namespace satyya.Utils

{

    internal class AuthenticationHelper

    {

        public static string TokenForUser;

        /// <summary>

        /// Get Token for Application.

        /// </summary>

        /// <returns>Token for application.</returns>

        public static ActiveDirectoryClient GetActiveDirectoryClientAsApplication(HttpSessionStateBase session)

        {

            Uri servicePointUri = new Uri(Constants.ResourceUrl);

            Uri serviceRoot = new Uri(servicePointUri, Constants.TenantId);

            ActiveDirectoryClient activeDirectoryClient = new ActiveDirectoryClient(serviceRoot,

                async () => await AcquireTokenAsyncForApplication(session));

            return activeDirectoryClient;

        }

        public static async Task<string> AcquireTokenAsyncForApplication(HttpSessionStateBase session)

        {

            AuthenticationResult token = null;

            if (session != null && session["token"] != null)

            {

                token = session["token"] as AuthenticationResult;

            }

            AuthenticationResult authenticationResult = null;

            var futureTime = DateTimeOffset.UtcNow.AddMinutes(2);

            // Fetch a token if it has not been fetched earlier or if the token is about to expire in 2 mins

            if (token == null || (futureTime.UtcDateTime > token.ExpiresOn.UtcDateTime))

            {

                AuthenticationContext authenticationContext = new AuthenticationContext(Constants.AuthString, false);

                // Config for OAuth client credentials

                ClientCredential clientCred = new ClientCredential(Constants.ClientId, Constants.ClientSecret);

                authenticationResult = await authenticationContext.AcquireTokenAsync(Constants.ResourceUrl,

                   clientCred);

                token = authenticationResult;

                if (session != null)

                {

                    session["token"] = authenticationResult;

                }

            }

            if (token == null)

            {

                return null;

            }

            // Configure a AADJWTToken using the ADAL token

            var aadToken = new AADJWTToken();

            aadToken.AdalToken = token;

            aadToken.AccessToken = token.AccessToken;

            aadToken.TokenType = token.AccessTokenType;

            return token.AccessToken;

        }

        /// <summary>

        /// Async task to acquire token for User.

        /// </summary>

        /// <returns>Token for user.</returns>

        public static async Task<string> AcquireTokenAsyncForUser()

        {

            return GetTokenForUser();

        }

        /// <summary>

        /// Get Token for User.

        /// </summary>

        /// <returns>Token for user.</returns>

        public static string GetTokenForUser()

        {

            if (TokenForUser == null)

            {

                var redirectUri = new Uri("https://localhost");

                AuthenticationContext authenticationContext = new AuthenticationContext(Constants.AuthString, false);

                AuthenticationResult userAuthnResult = authenticationContext.AcquireToken(Constants.ResourceUrl,

                    Constants.ClientId, redirectUri, PromptBehavior.Always);

                TokenForUser = userAuthnResult.AccessToken;

                Console.WriteLine("\n Welcome " + userAuthnResult.UserInfo.GivenName + " " +

                                  userAuthnResult.UserInfo.FamilyName);

            }

            return TokenForUser;

        }

        /// <summary>

        /// Get Active Directory Client for User.

        /// </summary>

        /// <returns>ActiveDirectoryClient for User.</returns>

        public static ActiveDirectoryClient GetActiveDirectoryClientAsUser()

        {

            Uri servicePointUri = new Uri(Constants.ResourceUrl);

            Uri serviceRoot = new Uri(servicePointUri, Constants.TenantId);

            ActiveDirectoryClient activeDirectoryClient = new ActiveDirectoryClient(serviceRoot,

                async () => await AcquireTokenAsyncForUser());

            return activeDirectoryClient;

        }

    }

}

Next got to Controller

#region Azure AD

// Create New User

            ActiveDirectoryClient activeDirectoryClient;

            activeDirectoryClient = AuthenticationHelper.GetActiveDirectoryClientAsApplication(this.HttpContext.Session);

            IUser userToBeAdded = new User();

            Session["DomainNames"] = "satya.co";

            userToBeAdded.DisplayName = registerlogin.User_First_Name;

            userToBeAdded.UserPrincipalName = registerlogin.User_EmailId.Replace("@", "_") + "@" + Session["DomainNames"].ToString();

            //userToBeAdded.UserPrincipalName = mail1.Replace("@", "_") + "@" + Session["DomainNames"].ToString();

            userToBeAdded.AccountEnabled = true;

            userToBeAdded.MailNickname = registerlogin.User_Last_Name;

            userToBeAdded.Country = registerlogin.User_CountryName;

            userToBeAdded.State = registerlogin.User_StateName;

            userToBeAdded.PasswordProfile = new PasswordProfile

            {

                Password = registerlogin.User_Password,

                ForceChangePasswordNextLogin = true

            };

            userToBeAdded.UsageLocation = "US";

            await activeDirectoryClient.Users.AddUserAsync(userToBeAdded);

            if (userToBeAdded.DisplayName != "")

            {

                if (userToBeAdded.ObjectId != null)

                {

}

}

For Login

  activeDirectoryClient = AuthenticationHelper.GetActiveDirectoryClientAsApplication(this.HttpContext.Session);

                IUser users = activeDirectoryClient.Users.Where(d => d.UserPrincipalName == Convert.ToString(principalName)).ExecuteSingleAsync().Result;

                User user = (User)users;