MVC4FormsAuth.Managers/UserManager.cs

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using MVC4FormsAuth.Types;
using MVC4FormsAuth.Types.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Script.Serialization;
using System.Web.Security;

namespace MVC4FormsAuth.Managers
{
    public static class UserManager
    {
        /// <summary>
        /// Returns the User from the Context.User.Identity by decrypting the forms auth ticket and returning the user object.
        /// </summary>
        public static User User
        {
            get
            {
                if (HttpContext.Current.User.Identity.IsAuthenticated)
                {
                    // The user is authenticated. Return the user from the forms auth ticket.
                    return ((MyPrincipal)(HttpContext.Current.User)).User;
                }
                else if (HttpContext.Current.Items.Contains("User"))
                {
                    // The user is not authenticated, but has successfully logged in.
                    return (User)HttpContext.Current.Items["User"];
                }
                else
                {
                    return null;
                }
            }
        }

        /// <summary>
        /// Authenticates a user against a database, web service, etc.
        /// </summary>
        /// <param name="username">Username</param>
        /// <param name="password">Password</param>
        /// <returns>User</returns>
        public static User AuthenticateUser(string username, string password)
        {
            User user = null;

            // Lookup user in database, web service, etc. We'll just generate a fake user for this demo.
            if (username == "admin" && password == "51aspx")
            {
                user = new User { Id = 123, Name = "John Doe", Username = "johndoe", Age = 21 };
            }

            return user;
        }

        /// <summary>
        /// Authenticates a user via the MembershipProvider and creates the associated forms authentication ticket.
        /// </summary>