using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Security.Principal;
using System.Web;
using System.Web.Mvc;
using System.Web.Security;
using System.Web.UI;
namespace Mvc_Chart.Controllers
{
[HandleError]
[OutputCache(Location = OutputCacheLocation.None)]
public class AccountController : Controller
{
// This constructor is used by the MVC framework to instantiate the controller using
// the default forms authentication and membership providers.
public AccountController()
: this(null, null)
{
}
// This constructor is not used by the MVC framework but is instead provided for ease
// of unit testing this type. See the comments at the end of this file for more
// information.
public AccountController(IFormsAuthentication formsAuth, MembershipProvider provider)
{
FormsAuth = formsAuth ?? new FormsAuthenticationWrapper();
Provider = provider ?? Membership.Provider;
}
public IFormsAuthentication FormsAuth
{
get;
private set;
}
public MembershipProvider Provider
{
get;
private set;
}
[Authorize]
public ActionResult ChangePassword()
{
ViewData["Title"] = "Change Password";
ViewData["PasswordLength"] = Provider.MinRequiredPasswordLength;
return View();
}
[Authorize]
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult ChangePassword(string currentPassword, string newPassword, string confirmPassword)
{
ViewData["Title"] = "Change Password";
ViewData["PasswordLength"] = Provider.MinRequiredPasswordLength;
// Basic parameter validation
if (String.IsNullOrEmpty(currentPassword))
{
ModelState.AddModelError("currentPassword", "You must specify a current password.");
}
if (newPassword == null || newPassword.Length < Provider.MinRequiredPasswordLength)
{
ModelState.AddModelError("newPassword",
String.Format(CultureInfo.CurrentCulture,
"You must specify a new password of {0} or more characters.",
Provider.MinRequiredPasswordLength));
}
if (!String.Equals(newPassword, confirmPassword, StringComparison.Ordinal))
{
ModelState.AddModelError("_FORM", "The new password and confirmation password do not match.");
}
if (ModelState.IsValid)
{
// Attempt to change password
MembershipUser currentUser = Provider.GetUser(User.Identity.Name, true /* userIsOnline */);
bool changeSuccessful = false;
try
{
changeSuccessful = currentUser.ChangePassword(currentPassword, newPassword);
}
catch
{
// An exception is thrown if the new password does not meet the provider's requirements
}
if (changeSuccessful)
{
return RedirectToAction("ChangePasswordSuccess");
}
else
{
ModelState.AddModelError("_FORM", "The current password is incorrect or the new password is invalid.");
}
}
// If we got this far, something failed, redisplay form
return View();
}
public ActionResult ChangePasswordSuccess()
{
ViewData["Title"] = "Change Password";
return View();
}
public ActionResult Login()
{
ViewData["Title"] = "Login";
return View();
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Login(string username, string password, bool rememberMe, string returnUrl)
{
ViewData["Title"] = "Login";
// Basic parameter validation
if (String.IsNullOrEmpty(username))
{
ModelState.AddModelError("username", "You must specify a username.");
}
if (String.IsNullOrEmpty(password))
{
ModelState.AddModelError("password", "You must specify a password.");
}
if (ViewData.ModelState.IsValid)
{
// Attempt to login
bool loginSuccessful = Provider.ValidateUser(username, password);
if (loginSuccessful)
{
FormsAuth.SetAuthCookie(username, rememberMe);
if (!String.IsNullOrEmpty(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
else
{
ModelState.AddModelError("_FORM", "The username or password provided is incorrect.");
}
}
// If we got this far, something failed, redisplay form
ViewData["rememberMe"] = rememberMe;
return View();
}
public ActionResult Logout()
{
FormsAuth.SignOut();
return RedirectToAction("Index", "Home");
}
protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (filterContext.HttpContext.User.Identity is WindowsIdentity)
{
throw new InvalidOperationException("Windows authentication is not supported.");
}
}
public ActionResult Register()
{
ViewData["Title"] = "Register";
ViewData["PasswordLength"] = Provider.MinRequiredPasswordLength;
return View();
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Register(string username, string email, string password, string confirmPassword)
{
ViewData["Title"] = "Register";
ViewData["PasswordLength"] = Provider.MinRequiredPasswordLength;
// Basic parameter validation
if (String.IsNullOrEmpty(username))
{
ModelState.AddModelError("username", "You must specify a username.");
}
if (String.IsNullOrEmpty(email))
{
ModelState.AddModelError("email", "You must specify an email address.");
}
if (password == null || password.Length < Provider.MinRequiredPasswordLength)
{
ModelState.AddModelError("password",
String.Format(CultureInfo.CurrentCulture,
"You must specify a password of {0} or more characters.",
Provider.MinRequiredPasswordLength));
}
if (!String.Equals(password, confirmPassword, StringComparison.Ordinal))
{
ModelState.AddModelError("_FORM", "The new password and confirmation password do not match.");
}
if (ViewData.ModelState.IsValid)
{
// Attempt to register the user
MembershipCreateStatus createStatus;
MembershipUser newUser = Provider.CreateUser(username, password, email, null, null, true, null, out createStatus);
if (newUser != null)
{
FormsAuth.SetAuthCookie(username, false /* createPersistentCookie */);
return RedirectToAction("Index", "Home");
}
else
{
ModelState.AddModelError("_FORM", ErrorCodeToString(createStatus));
}
}
// If we got this far, something failed, redisplay form
return View();
}
private static string ErrorCodeToString(MembershipCreateStatus createStatus)
{
// See http://msdn.microsoft.com/en-us/library/system.web.security.membershipcreatestatus.aspx for
// a full list of status codes.
switch (createStatus)
{
case MembershipCreateStatus.DuplicateUserName:
return "Username already exists. Please enter a different user name.";
case MembershipCreateStatus.DuplicateEmail:
return "A username for that e-mail address already exists. Please enter a different e-mail address.";
case MembershipCreateStatus.InvalidPassword:
return "The password provided is invalid. Please enter a valid password value.";
case MembershipCreateStatus.InvalidEmail:
return "The e-mail address provided is invalid. Please check the value and try again.";
case MembershipCreateStatus.InvalidAnswer:
return "The password retrieval answer provided is invalid. Please check the value and try again.";
case MembershipCreateStatus.InvalidQuestion:
return "The password retrieval question provided is invalid. Please check the value and try again.";
case MembershipCreateStatus.InvalidUserName:
return "The user name provided is invalid. Please check the value and try again.";
case MembershipCreateStatus.ProviderError:
return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
case MembershipCreateStatus.UserRejected:
return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
default:
return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
}
}
}
// The FormsAuthentication type is sealed and contains static members, so it is difficult to
// unit test code that calls its members. The interface and helper class below demonstrate
// how to create an abstract wrapper around such a type in order to make the AccountController
// code unit testable.
public interface IFormsAuthentication
{
void SetAuthCookie(string userName, bool createPersistentCookie);
void SignOut();
}
public class FormsAuthenticationWrapper : IFormsAuthentication
{
public void SetAuthCookie(string userName, bool createPersistentCookie)
{
FormsAuthentication.SetAuthCookie(userName, createPersistentCookie);
}
public void SignOut()
{
FormsAuthentication.SignOut();
}
}
}
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