11-002 Security 之 IAuthenticationHandler

先看一下接口内容：

[AssemblyNeutral]
	public interface IAuthenticationHandler
	{
		void Authenticate(IAuthenticateContext context);
		Task AuthenticateAsync(IAuthenticateContext context);
		void Challenge(IChallengeContext context);
		void GetDescriptions(IAuthTypeContext context);
		void SignIn(ISignInContext context);
		void SignOut(ISignOutContext context);
	}

 IAuthenticationContext:

[AssemblyNeutral]
	public interface IAuthenticateContext
	{
		IEnumerable<string> AuthenticationTypes { get; }

		void Authenticated(ClaimsIdentity identity, IDictionary<string, string> properties, IDictionary<string, object> description);
		void NotAuthenticated(string authenticationType, IDictionary<string, string> properties, IDictionary<string, object> description);
	}

 IChallengeContext:

	[AssemblyNeutral]
	public interface IChallengeContext
	{
		IEnumerable<string> AuthenticationTypes { get; }
		IDictionary<string, string> Properties { get; }

		void Accept(string authenticationType, IDictionary<string, object> description);
	}

实现接口的若干类：

public abstract class AuthenticationHandler : IAuthenticationHandler{}

public abstract class AuthenticationHandler<TOptions> : AuthenticationHandler 
                                      where TOptions : AuthenticationOptions{}

internal class CookieAuthenticationHandler : AuthenticationHandler<CookieAuthenticationOptions>{}

public class OAuthBearerAuthenticationHandler : AuthenticationHandler<OAuthBearerAuthenticationOptions>{}

public class OpenIdConnectAuthenticationHandler : AuthenticationHandler<OpenIdConnectAuthenticationOptions>{}

internal class TwitterAuthenticationHandler : AuthenticationHandler<TwitterAuthenticationOptions>{}

public class OAuthAuthenticationHandler<TOptions, TNotifications> : AuthenticationHandler<TOptions>
        where TOptions : OAuthAuthenticationOptions<TNotifications>
        where TNotifications : IOAuthAuthenticationNotifications{}

internal class GoogleAuthenticationHandler 
: OAuthAuthenticationHandler<GoogleAuthenticationOptions, IGoogleAuthenticationNotifications>{}

 internal class MicrosoftAccountAuthenticationHandler 
: OAuthAuthenticationHandler<MicrosoftAccountAuthenticationOptions
                   , IMicrosoftAccountAuthenticationNotifications>{}

internal class FacebookAuthenticationHandler 
: OAuthAuthenticationHandler<FacebookAuthenticationOptions, IFacebookAuthenticationNotifications>{}