关于外部身份验证提供程序，从MVC4升级到MVC5时遇到问题。我已经更改了按照默认的MVC5应用程序添加了Startup.cs文件，并添加了AccountViewModel和IdentityModel以及所需的Microsoft.Owin nuget包，但是我在startup.cs完成并且它遍历帐户控制器后收到此错误：
指数超出范围。必须是非负数且小于集合的大小。参数名称：index
var loginProviders = Context.GetOwinContext().Authentication.GetExternalAuthenticationTypes();
Startup.cs
using Microsoft.Owin;
using Owin;
[assembly: OwinStartupAttribute(typeof(MetaLearning.Startup))]
namespace ProjectName
{
public partial class Startup
{
public void Configuration(IAppBuilder app)
{
ConfigureAuth(app);
}
}
}
Startup.Auth.cs
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin;
using Microsoft.Owin.Security.Cookies;
using Microsoft.Owin.Security.DataProtection;
using Microsoft.Owin.Security.Google;
using Microsoft.Owin.Security.Twitter;
using Owin;
using System;
using ProjectName.Models;
namespace ProjectName
{
public partial class Startup
{
// For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301864
public void ConfigureAuth(IAppBuilder app)
{
// Configure the db context and user manager to use a single instance per request
app.CreatePerOwinContext(ApplicationDbContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
// Enable the application to use a cookie to store information for the signed in user
// and to use a cookie to temporarily store information about a user logging in with a third party login provider
// Configure the sign in cookie
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
LoginPath = new PathString("/Account/Login"),
Provider = new CookieAuthenticationProvider
{
OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
validateInterval: TimeSpan.FromMinutes(30),
regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))
}
});
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
}
}
}
Global_asax.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Http;
using System.Web.Mvc;
using System.Web.Optimization;
using System.Web.Routing;
using System.Data.Entity;
using MetaLearning.Data;
using MetaLearning.Data.DAL;
using System.Web.SessionState;
using System.IdentityModel;
using System.IdentityModel.Tokens;
using System.IdentityModel.Services;
using System.IdentityModel.Services.Configuration;
using System.Runtime.InteropServices;
using System.IO;
using WebMatrix.WebData;
namespace MetaLearning
{
// Note: For instructions on enabling IIS6 or IIS7 classic mode,
// visit http://go.microsoft.com/?LinkId=9394801
public class MvcApplication : System.Web.HttpApplication
{
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles);
if (!WebSecurity.Initialized)
WebSecurity.InitializeDatabaseConnection("ProjectNameContext", "ProjectNameUser", "UserID", "Username", autoCreateTables: true);
}
...........................
}
}
IdentityModel.cs
using System.Security.Claims;
using System.Threading.Tasks;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.EntityFramework;
namespace ProjectName.Models
{
// You can add profile data for the user by adding more properties to your ApplicationUser class, please visit http://go.microsoft.com/fwlink/?LinkID=317594 to learn more.
public class ApplicationUser : IdentityUser
{
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here
return userIdentity;
}
}
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext()
: base("ProjectNameContext", throwIfV1Schema: false)
{
}
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
}
}
AccountController.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security;
using Owin;
using MetaLearning.Models;
namespace MetaLearning
{
[Authorize]
public class AccountController : Controller
{
private ApplicationUserManager _userManager;
public AccountController()
{
}
public AccountController(ApplicationUserManager userManager)
{
UserManager = userManager;
}
public ApplicationUserManager UserManager
{
get
{
return _userManager ?? HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();
}
private set
{
_userManager = value;
}
}
//
// GET: /Account/Login
[AllowAnonymous]
public ActionResult Login(string returnUrl)
{
ViewBag.ReturnUrl = returnUrl;
return View();
}
//
// POST: /Account/Login
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindAsync(model.Email, model.Password);
if (user != null)
{
await SignInAsync(user, model.RememberMe);
return RedirectToLocal(returnUrl);
}
else
{
ModelState.AddModelError("", "Invalid username or password.");
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/Register
[AllowAnonymous]
public ActionResult Register()
{
return View();
}
//
// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model)
{
if (ModelState.IsValid)
{
var user = new ApplicationUser() { UserName = model.Email, Email = model.Email };
IdentityResult result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await SignInAsync(user, isPersistent: false);
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>");
return RedirectToAction("Index", "Home");
}
else
{
AddErrors(result);
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ConfirmEmail
[AllowAnonymous]
public async Task<ActionResult> ConfirmEmail(string userId, string code)
{
if (userId == null || code == null)
{
return View("Error");
}
IdentityResult result = await UserManager.ConfirmEmailAsync(userId, code);
if (result.Succeeded)
{
return View("ConfirmEmail");
}
else
{
AddErrors(result);
return View();
}
}
//
// GET: /Account/ForgotPassword
[AllowAnonymous]
public ActionResult ForgotPassword()
{
return View();
}
//
// POST: /Account/ForgotPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ForgotPassword(ForgotPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindByNameAsync(model.Email);
if (user == null || !(await UserManager.IsEmailConfirmedAsync(user.Id)))
{
ModelState.AddModelError("", "The user either does not exist or is not confirmed.");
return View();
}
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GeneratePasswordResetTokenAsync(user.Id);
// var callbackUrl = Url.Action("ResetPassword", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Reset Password", "Please reset your password by clicking <a href=\"" + callbackUrl + "\">here</a>");
// return RedirectToAction("ForgotPasswordConfirmation", "Account");
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ForgotPasswordConfirmation
[AllowAnonymous]
public ActionResult ForgotPasswordConfirmation()
{
return View();
}
//
// GET: /Account/ResetPassword
[AllowAnonymous]
public ActionResult ResetPassword(string code)
{
if (code == null)
{
return View("Error");
}
return View();
}
//
// POST: /Account/ResetPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ResetPassword(ResetPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindByNameAsync(model.Email);
if (user == null)
{
ModelState.AddModelError("", "No user found.");
return View();
}
IdentityResult result = await UserManager.ResetPasswordAsync(user.Id, model.Code, model.Password);
if (result.Succeeded)
{
return RedirectToAction("ResetPasswordConfirmation", "Account");
}
else
{
AddErrors(result);
return View();
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ResetPasswordConfirmation
[AllowAnonymous]
public ActionResult ResetPasswordConfirmation()
{
return View();
}
//
// POST: /Account/Disassociate
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Disassociate(string loginProvider, string providerKey)
{
ManageMessageId? message = null;
IdentityResult result = await UserManager.RemoveLoginAsync(User.Identity.GetUserId(), new UserLoginInfo(loginProvider, providerKey));
if (result.Succeeded)
{
var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
await SignInAsync(user, isPersistent: false);
message = ManageMessageId.RemoveLoginSuccess;
}
else
{
message = ManageMessageId.Error;
}
return RedirectToAction("Manage", new { Message = message });
}
//
// GET: /Account/Manage
public ActionResult Manage(ManageMessageId? message)
{
ViewBag.StatusMessage =
message == ManageMessageId.ChangePasswordSuccess ? "Your password has been changed."
: message == ManageMessageId.SetPasswordSuccess ? "Your password has been set."
: message == ManageMessageId.RemoveLoginSuccess ? "The external login was removed."
: message == ManageMessageId.Error ? "An error has occurred."
: "";
ViewBag.HasLocalPassword = HasPassword();
ViewBag.ReturnUrl = Url.Action("Manage");
return View();
}
//
// POST: /Account/Manage
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Manage(ManageUserViewModel model)
{
bool hasPassword = HasPassword();
ViewBag.HasLocalPassword = hasPassword;
ViewBag.ReturnUrl = Url.Action("Manage");
if (hasPassword)
{
if (ModelState.IsValid)
{
IdentityResult result = await UserManager.ChangePasswordAsync(User.Identity.GetUserId(), model.OldPassword, model.NewPassword);
if (result.Succeeded)
{
var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
await SignInAsync(user, isPersistent: false);
return RedirectToAction("Manage", new { Message = ManageMessageId.ChangePasswordSuccess });
}
else
{
AddErrors(result);
}
}
}
else
{
// User does not have a password so remove any validation errors caused by a missing OldPassword field
ModelState state = ModelState["OldPassword"];
if (state != null)
{
state.Errors.Clear();
}
if (ModelState.IsValid)
{
IdentityResult result = await UserManager.AddPasswordAsync(User.Identity.GetUserId(), model.NewPassword);
if (result.Succeeded)
{
return RedirectToAction("Manage", new { Message = ManageMessageId.SetPasswordSuccess });
}
else
{
AddErrors(result);
}
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// POST: /Account/ExternalLogin
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public ActionResult ExternalLogin(string provider, string returnUrl)
{
// Request a redirect to the external login provider
return new ChallengeResult(provider, Url.Action("ExternalLoginCallback", "Account", new { ReturnUrl = returnUrl }));
}
//
// GET: /Account/ExternalLoginCallback
[AllowAnonymous]
public async Task<ActionResult> ExternalLoginCallback(string returnUrl)
{
var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync();
if (loginInfo == null)
{
return RedirectToAction("Login");
}
// Sign in the user with this external login provider if the user already has a login
var user = await UserManager.FindAsync(loginInfo.Login);
if (user != null)
{
await SignInAsync(user, isPersistent: false);
return RedirectToLocal(returnUrl);
}
else
{
// If the user does not have an account, then prompt the user to create an account
ViewBag.ReturnUrl = returnUrl;
ViewBag.LoginProvider = loginInfo.Login.LoginProvider;
return View("ExternalLoginConfirmation", new ExternalLoginConfirmationViewModel { Email = loginInfo.Email });
}
}
//
// POST: /Account/LinkLogin
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult LinkLogin(string provider)
{
// Request a redirect to the external login provider to link a login for the current user
return new ChallengeResult(provider, Url.Action("LinkLoginCallback", "Account"), User.Identity.GetUserId());
}
//
// GET: /Account/LinkLoginCallback
public async Task<ActionResult> LinkLoginCallback()
{
var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync(XsrfKey, User.Identity.GetUserId());
if (loginInfo == null)
{
return RedirectToAction("Manage", new { Message = ManageMessageId.Error });
}
IdentityResult result = await UserManager.AddLoginAsync(User.Identity.GetUserId(), loginInfo.Login);
if (result.Succeeded)
{
return RedirectToAction("Manage");
}
return RedirectToAction("Manage", new { Message = ManageMessageId.Error });
}
//
// POST: /Account/ExternalLoginConfirmation
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ExternalLoginConfirmation(ExternalLoginConfirmationViewModel model, string returnUrl)
{
if (User.Identity.IsAuthenticated)
{
return RedirectToAction("Manage");
}
if (ModelState.IsValid)
{
// Get the information about the user from the external login provider
var info = await AuthenticationManager.GetExternalLoginInfoAsync();
if (info == null)
{
return View("ExternalLoginFailure");
}
var user = new ApplicationUser() { UserName = model.Email, Email = model.Email };
IdentityResult result = await UserManager.CreateAsync(user);
if (result.Succeeded)
{
result = await UserManager.AddLoginAsync(user.Id, info.Login);
if (result.Succeeded)
{
await SignInAsync(user, isPersistent: false);
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// SendEmail(user.Email, callbackUrl, "Confirm your account", "Please confirm your account by clicking this link");
return RedirectToLocal(returnUrl);
}
}
AddErrors(result);
}
ViewBag.ReturnUrl = returnUrl;
return View(model);
}
//
// POST: /Account/LogOff
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult LogOff()
{
AuthenticationManager.SignOut();
return RedirectToAction("Index", "Home");
}
//
// GET: /Account/ExternalLoginFailure
[AllowAnonymous]
public ActionResult ExternalLoginFailure()
{
return View();
}
[ChildActionOnly]
public ActionResult RemoveAccountList()
{
var linkedAccounts = UserManager.GetLogins(User.Identity.GetUserId());
ViewBag.ShowRemoveButton = HasPassword() || linkedAccounts.Count > 1;
return (ActionResult)PartialView("_RemoveAccountPartial", linkedAccounts);
}
protected override void Dispose(bool disposing)
{
if (disposing && UserManager != null)
{
UserManager.Dispose();
UserManager = null;
}
base.Dispose(disposing);
}
#region Helpers
// Used for XSRF protection when adding external logins
private const string XsrfKey = "XsrfId";
private IAuthenticationManager AuthenticationManager
{
get
{
return HttpContext.GetOwinContext().Authentication;
}
}
private async Task SignInAsync(ApplicationUser user, bool isPersistent)
{
AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, await user.GenerateUserIdentityAsync(UserManager));
}
private void AddErrors(IdentityResult result)
{
foreach (var error in result.Errors)
{
ModelState.AddModelError("", error);
}
}
private bool HasPassword()
{
var user = UserManager.FindById(User.Identity.GetUserId());
if (user != null)
{
return user.PasswordHash != null;
}
return false;
}
private void SendEmail(string email, string callbackUrl, string subject, string message)
{
// For information on sending mail, please visit http://go.microsoft.com/fwlink/?LinkID=320771
}
public enum ManageMessageId
{
ChangePasswordSuccess,
SetPasswordSuccess,
RemoveLoginSuccess,
Error
}
private ActionResult RedirectToLocal(string returnUrl)
{
if (Url.IsLocalUrl(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
private class ChallengeResult : HttpUnauthorizedResult
{
public ChallengeResult(string provider, string redirectUri)
: this(provider, redirectUri, null)
{
}
public ChallengeResult(string provider, string redirectUri, string userId)
{
LoginProvider = provider;
RedirectUri = redirectUri;
UserId = userId;
}
public string LoginProvider { get; set; }
public string RedirectUri { get; set; }
public string UserId { get; set; }
public override void ExecuteResult(ControllerContext context)
{
var properties = new AuthenticationProperties() { RedirectUri = RedirectUri };
if (UserId != null)
{
properties.Dictionary[XsrfKey] = UserId;
}
context.HttpContext.GetOwinContext().Authentication.Challenge(properties, LoginProvider);
}
}
#endregion
}
}