MVC Basic Site: Step 1 – Multilingual Site Skeleton

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.Web.Security;
using System.Data;
using System.Data.Entity;
//
using MvcBasicSite.Models;
using MvcBasic.Logic;

namespace MvcBasicSite.Controllers
{
    /// <summary>
    /// Defines the account controller.
    /// </summary>
    public class AccountController : BaseController
    {
        

        /// <summary>
        /// Change the current culture.
        /// </summary>
        /// <param name="culture">The current selected culture.</param>
        /// <returns>The action result.</returns>
        public ActionResult ChangeCurrentCulture(int culture)
        {
            //
            // Change the current culture for this user.
            //
            SiteSession.CurrentUICulture = culture;
            //
            // Cache the new current culture into the user HTTP session. 
            //
            Session["CurrentUICulture"] = culture;
            //
            // Redirect to the same page from where the request was made! 
            //
            return Redirect(Request.UrlReferrer.ToString());
        }

        /// <summary>
        /// Activate Log-On page.
        /// </summary>
        /// <returns>The view.</returns>
        public ViewResult LogOn()
        {
            //
            // Create the model.
            //
            LogOnModel model = new LogOnModel();
            model.Username = string.Empty;
            model.Password = string.Empty;
            //
            // Activate the view.
            //
            return View(model);
        }

        /// <summary>
        /// Validate the user login data.
        /// </summary>
        /// <param name="model">The Log-On model.</param>
        /// <returns>The view result.</returns>
        [HttpPost]
        public ActionResult LogOn(LogOnModel model)
        {
            if (ModelState.IsValid)
            {
                //
                // Verify the user name and password.
                //
                User user = _db.Users.FirstOrDefault(item => item.Username.ToLower() == model.Username.ToLower() && item.Password == model.Password);
                if (user == null || user.Password != model.Password)
                {
                    ModelState.AddModelError("", Resources.Resource.LogOnErrorMessage);
                    //
                    return View(model);
                }
                else
                {
                    //
                    // User logined succesfully ==> create a new site session!
                    //
                    FormsAuthentication.SetAuthCookie(model.Username, false);
                    //
                    SiteSession siteSession = new SiteSession(_db, user);
                    Session["SiteSession"] = siteSession; // Cache the user login data!
                    //
                    return RedirectToAction("Index", "Home");
                }
            }
            //
            // If we got this far, something failed, redisplay form!
            //
            return View(model);
        }
        
        /// <summary>
        /// Log off.
        /// </summary>
        /// <returns>The action result.</returns>
        [Authorize]
        public ActionResult LogOff()
        {
            FormsAuthentication.SignOut();
            SiteSession siteSession = this.CurrentSiteSession;
            //
            // Clear the user session!
            //
            int culture = SiteSession.CurrentUICulture;
            this.Session["SiteSession"] = null;
            //
            return RedirectToAction("Index", "Home");
        }

        /// <summary>
        /// Get the register page.
        /// </summary>
        /// <remarks>
        /// GET: /Account/Register
        /// </remarks>
        /// <returns>The action result.</returns>
        public ActionResult Register()
        {
            User registerUser = new User();
            registerUser.Address = new Address();
            //
            return View(registerUser);
        }

        /// <summary>
        /// Register the user data.
        /// </summary>
        /// <remarks>
        /// POST: /Account/Register
        /// </remarks>
        /// <param name="model">The model.</param>
        /// <returns>The view result.</returns>
        [HttpPost]
        public ViewResult Register(User model, Address modelAddress)
        {
            if (ModelState.IsValid)
            {
                //
                // Verify if exists other user with the same username.
                //
                User existUser = _db.Users.FirstOrDefault(item => item.Username.ToLower() == model.Username.ToLower());
                if (existUser == null)
                {
                    //
                    // Save the user data.
                    //
                    MvcBasic.Logic.User user = new MvcBasic.Logic.User();
                    user.Username = model.Username;
                    user.Password = model.Password;
                    user.UserRole = UserRoles.SimpleUser;
                    user.Email = model.Email;
                    //
                    if (modelAddress.CountryID <= 0)
                        modelAddress.CountryID = null;
                    //
                    user.Address = modelAddress;
                    //
                    _db.Users.AddObject(user);
                    _db.SaveChanges(); 
                    //
                    // Go to RegisterFinalized page!
                    //
                    return View("RegisterFinalized");
                }
                else
                {
                    //
                    // Exists other user with the same username, so show the error message.
                    //
                    ModelState.AddModelError("", Resources.Resource.RegisterInvalidUsername);
                    model.Address = modelAddress;
                    //
                    return View(model);
                }
            }
            //
            // If we got this far, something failed, redisplay form!
            //
            model.Address = modelAddress;
            //
            return View(model);
        }

        /// <summary>
        /// Cancel the user registration.
        /// </summary>
        /// <remarks>
        /// GET: /Account/CancelRegister
        /// </remarks>
        /// <returns>The action result.</returns>
        public ActionResult CancelRegister()
        {
            return RedirectToAction("LogOn");
        }
    }
}