Google+有效，但Facebook总是会失败。当我检查loginInfo时，它显示authenticated = true。
这是Statup.Auth.cs中的代码 - 我添加了有效的Google+代码。
public void ConfigureAuth(IAppBuilder app)
{
// Configure the db context, user manager and signin manager to use a single instance per request
app.CreatePerOwinContext(ApplicationDbContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.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
{
// Enables the application to validate the security stamp when the user logs in.
// This is a security feature which is used when you change a password or add an external login to your account.
OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
validateInterval: TimeSpan.FromMinutes(30),
regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))
}
});
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
// Enables the application to temporarily store user information when they are verifying the second factor in the two-factor authentication process.
app.UseTwoFactorSignInCookie(DefaultAuthenticationTypes.TwoFactorCookie, TimeSpan.FromMinutes(5));
// Enables the application to remember the second login verification factor such as phone or email.
// Once you check this option, your second step of verification during the login process will be remembered on the device where you logged in from.
// This is similar to the RememberMe option when you log in.
app.UseTwoFactorRememberBrowserCookie(DefaultAuthenticationTypes.TwoFactorRememberBrowserCookie);
// Uncomment the following lines to enable logging in with third party login providers
//app.UseMicrosoftAccountAuthentication(
// clientId: "",
// clientSecret: "");
//app.UseTwitterAuthentication(
// consumerKey: "",
// consumerSecret: "");
var options = new FacebookAuthenticationOptions();
options.Scope.Add("email");
options.Scope.Add("friends_about_me");
options.Scope.Add("friends_photos");
options.AppId = "xxxxxxxxx";
options.AppSecret = "xxxxxxx";
options.Provider = new FacebookAuthenticationProvider()
{
OnAuthenticated = context =>
{
var userDetail = context.User;
string id = (dynamic)context.Id;
string emmail = (dynamic)context.Email;
var currentUser = UserManager.FindByName(emmail);
if (currentUser.UserProfile == null)
{
currentUser.EmailConfirmed = true;
try
{
currentUser.UserProfile = new UserProfile
{
UserProfileId = currentUser.ToString(),
Avatar = ConvertImageURLToBase64(@"https://graph.facebook.com/" + id + "/picture?type=large"),
LastName = ((dynamic)context.User).first_name.Value,
FirstName = ((dynamic)context.User).last_name.Value,
MemberSince = DateTime.Now.Date,
ProfileVisibility = "Private",
ZipCode = "0",
};
UserManager.Update(currentUser);
}
catch (Exception ex)
{
string x = ex.StackTrace.ToString();
}
}
return System.Threading.Tasks.Task.FromResult(0);
}
};
app.UseFacebookAuthentication(options);
app.UseGooglePlusAuthentication(new GooglePlusAuthenticationOptions()
{
ClientId = "xxxxxxx",
ClientSecret = "xxxxx",
Provider = new GooglePlusAuthenticationProvider()
{
OnAuthenticated = context =>
{
var userDetail = context.Person;
context.Identity.AddClaim(new Claim(ClaimTypes.Name, context.Identity.FindFirstValue(ClaimTypes.Name)));
context.Identity.AddClaim(new Claim(ClaimTypes.Email, context.Identity.FindFirstValue(ClaimTypes.Email)));
string id = ((dynamic)context.Person).id;
string emmail = ((dynamic)context.Person).emails[0].value.Value;
var currentUser = UserManager.FindByName(emmail);
if (currentUser.UserProfile == null)
{
currentUser.EmailConfirmed = true;
currentUser.UserProfile = new UserProfile
{
UserProfileId = currentUser.ToString(),
Avatar = ConvertImageURLToBase64(((dynamic)context.Person).image.url.Value),
LastName = ((dynamic)context.Person).name.familyName.Value,
FirstName = ((dynamic)context.Person).name.givenName.Value,
MemberSince = DateTime.Now.Date,
ProfileVisibility = "Private",
ZipCode = "0"
};
UserManager.Update(currentUser);
}
return System.Threading.Tasks.Task.FromResult(0);
},
},
});
}
这是AccountController.cs - Google+有效，但Facebook没有。
[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 result = await SignInManager.ExternalSignInAsync(loginInfo, isPersistent: false);
switch (result)
{
case SignInStatus.Success:
return RedirectToLocal(returnUrl);
case SignInStatus.LockedOut:
return View("Lockout");
case SignInStatus.RequiresVerification:
return RedirectToAction("SendCode", new { ReturnUrl = returnUrl, RememberMe = false });
case SignInStatus.Failure:
default:
// If the user does not have an account, then prompt the user to create an account
ViewBag.ReturnUrl = returnUrl;
ViewBag.L`enter code here`oginProvider = loginInfo.Login.LoginProvider;
return View("ExternalLoginConfirmation", new ExternalLogi![enter image description here][1]nConfirmationViewModel { Email = loginInfo.Email });
}
}
答案 0 :(得分：1)
事实证明代码正在运行。我认为当Facebook用户电子邮件与用户ID（即电子邮件）匹配时，我可以将现有用户与Facebook用户联系起来，但事实并非如此，在考虑之后这是有意义的。您必须将Facebook用户与新用户关联。
答案 1 :(得分：0)
将以下行添加到Startup.cs类：
app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Create);
它将解决问题。