関数を使用ExchangeUserCredentialForTokenして、認証サーバーからトークンを取得しています。ユーザーがデータベースに存在する場合は正常に機能しますが、資格情報が正しくない場合は、クライアントにメッセージを送り返したいと思います。次の 2 行のコードを使用して、エラー メッセージを設定しています。
context.SetError("Autorization Error", "The username or password is incorrect!");
context.Rejected();
しかし、クライアント側では、プロトコル エラー (エラー 400) のみが発生します。認可サーバーのサーバー側で設定されたエラーメッセージを取得するにはどうすればよいですか?
認可サーバーからの完全なアプリ構成:
using Constants;
using Microsoft.Owin;
using Microsoft.Owin.Security;
using Microsoft.Owin.Security.Cookies;
using Microsoft.Owin.Security.Infrastructure;
using Microsoft.Owin.Security.OAuth;
using Owin;
using System;
using System.Collections.Concurrent;
using System.Linq;
using System.Security.Claims;
using System.Security.Principal;
using System.Threading.Tasks;
using AuthorizationServer.Entities;
using AuthorizationServer.Entities.Infrastructure.Abstract;
using AuthorizationServer.Entities.Infrastructure.Concrete;
namespace AuthorizationServer
{
public partial class Startup
{
private IEmployeeRepository Repository;
public void ConfigureAuth(IAppBuilder app)
{
//instanciate the repository
Repository = new EmployeeRepository();
// Enable Application Sign In Cookie
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = "Application",
AuthenticationMode = AuthenticationMode.Passive,
LoginPath = new PathString(Paths.LoginPath),
LogoutPath = new PathString(Paths.LogoutPath),
});
// Enable External Sign In Cookie
app.SetDefaultSignInAsAuthenticationType("External");
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = "External",
AuthenticationMode = AuthenticationMode.Passive,
CookieName = CookieAuthenticationDefaults.CookiePrefix + "External",
ExpireTimeSpan = TimeSpan.FromMinutes(5),
});
// Enable google authentication
app.UseGoogleAuthentication();
// Setup Authorization Server
app.UseOAuthAuthorizationServer(new OAuthAuthorizationServerOptions
{
AuthorizeEndpointPath = new PathString(Paths.AuthorizePath),
TokenEndpointPath = new PathString(Paths.TokenPath),
ApplicationCanDisplayErrors = true,
#if DEBUG
AllowInsecureHttp = true,
#endif
// Authorization server provider which controls the lifecycle of Authorization Server
Provider = new OAuthAuthorizationServerProvider
{
OnValidateClientRedirectUri = ValidateClientRedirectUri,
OnValidateClientAuthentication = ValidateClientAuthentication,
OnGrantResourceOwnerCredentials = GrantResourceOwnerCredentials,
OnGrantClientCredentials = GrantClientCredetails
},
// Authorization code provider which creates and receives authorization code
AuthorizationCodeProvider = new AuthenticationTokenProvider
{
OnCreate = CreateAuthenticationCode,
OnReceive = ReceiveAuthenticationCode,
},
// Refresh token provider which creates and receives referesh token
RefreshTokenProvider = new AuthenticationTokenProvider
{
OnCreate = CreateRefreshToken,
OnReceive = ReceiveRefreshToken,
}
});
// indicate our intent to use bearer authentication
app.UseOAuthBearerAuthentication(new OAuthBearerAuthenticationOptions
{
AuthenticationType = "Bearer",
AuthenticationMode = Microsoft.Owin.Security.AuthenticationMode.Active
});
}
private Task ValidateClientRedirectUri(OAuthValidateClientRedirectUriContext context)
{
if (context.ClientId == Clients.Client1.Id)
{
context.Validated(Clients.Client1.RedirectUrl);
}
else if (context.ClientId == Clients.Client2.Id)
{
context.Validated(Clients.Client2.RedirectUrl);
}
return Task.FromResult(0);
}
private Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
{
string clientname;
string clientpassword;
if (context.TryGetBasicCredentials(out clientname, out clientpassword) ||
context.TryGetFormCredentials(out clientname, out clientpassword))
{
employee Employee = Repository.GetEmployee(clientname, clientpassword);
if (Employee != null)
{
context.Validated();
}
else
{
context.SetError("Autorization Error", "The username or password is incorrect!");
context.Rejected();
}
}
return Task.FromResult(0);
}
private Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
{
var identity = new ClaimsIdentity(new GenericIdentity(context.UserName, OAuthDefaults.AuthenticationType), context.Scope.Select(x => new Claim("urn:oauth:scope", x)));
context.Validated(identity);
return Task.FromResult(0);
}
private Task GrantClientCredetails(OAuthGrantClientCredentialsContext context)
{
var identity = new ClaimsIdentity(new GenericIdentity(context.ClientId, OAuthDefaults.AuthenticationType), context.Scope.Select(x => new Claim("urn:oauth:scope", x)));
context.Validated(identity);
return Task.FromResult(0);
}
private readonly ConcurrentDictionary<string, string> _authenticationCodes =
new ConcurrentDictionary<string, string>(StringComparer.Ordinal);
private void CreateAuthenticationCode(AuthenticationTokenCreateContext context)
{
context.SetToken(Guid.NewGuid().ToString("n") + Guid.NewGuid().ToString("n"));
_authenticationCodes[context.Token] = context.SerializeTicket();
}
private void ReceiveAuthenticationCode(AuthenticationTokenReceiveContext context)
{
string value;
if (_authenticationCodes.TryRemove(context.Token, out value))
{
context.DeserializeTicket(value);
}
}
private void CreateRefreshToken(AuthenticationTokenCreateContext context)
{
context.SetToken(context.SerializeTicket());
}
private void ReceiveRefreshToken(AuthenticationTokenReceiveContext context)
{
context.DeserializeTicket(context.Token);
}
}
}