[英]Manually decode OAuth bearer token in c#
In my Web Api 2.2 OWIN based application I have a situation where I manually need to decode the bearer token but I don't know how to do this. 在我的Web Api 2.2基于OWIN的应用程序中,我有一种情况,我手动需要解码承载令牌,但我不知道如何做到这一点。 This is my startup.cs
这是我的startup.cs
public class Startup
{
public static OAuthAuthorizationServerOptions OAuthServerOptions { get; private set; }
public static UnityContainer IoC;
public void Configuration(IAppBuilder app)
{
//Set Auth configuration
ConfigureOAuth(app);
....and other stuff
}
public void ConfigureOAuth(IAppBuilder app)
{
OAuthServerOptions = new OAuthAuthorizationServerOptions()
{
AllowInsecureHttp = true,
TokenEndpointPath = new PathString("/token"),
AccessTokenExpireTimeSpan = TimeSpan.FromDays(1),
Provider = new AuthProvider(IoC.Resolve<IUserService>(), IoC.Resolve<IAppSettings>())
};
// Token Generation
app.UseOAuthAuthorizationServer(OAuthServerOptions);
app.UseOAuthBearerAuthentication(new OAuthBearerAuthenticationOptions());
}
}
In my controller Im sending the bearer token as a parameter 在我的控制器中,我发送了承载令牌作为参数
[RoutePrefix("api/EP")]
public class EPController : MasterController
{
[HttpGet]
[AllowAnonymous]
[Route("DC")]
public async Task<HttpResponseMessage> GetDC(string token)
{
//Get the claim identity from the token here
//Startup.OAuthServerOptions...
//..and other stuff
}
}
How to manually decode and get the claims from the token passed as a parameter? 如何手动解码并从作为参数传递的令牌中获取声明?
NOTE : I know I can send the token in the header and use [Authorize] and (ClaimsIdentity)User.Identity etc but the question is how to read the token when it's not presented in the header. 注意 :我知道我可以在标题中发送令牌并使用[Authorize]和(ClaimsIdentity)User.Identity等,但问题是如何在标题中没有出现时读取令牌。
Just placing this here for others that may visit in the future. 只是将此放在此处可供将来访问的其他人使用。 Solution found at https://long2know.com/2015/05/decrypting-owin-authentication-ticket/ is simpler.
在https://long2know.com/2015/05/decrypting-owin-authentication-ticket/上找到的解决方案更简单。
Just 2 lines : 只需2行:
var secureDataFormat = new TicketDataFormat(new MachineKeyProtector());
AuthenticationTicket ticket = secureDataFormat.Unprotect(accessToken);
private class MachineKeyProtector : IDataProtector {
private readonly string[] _purpose =
{
typeof(OAuthAuthorizationServerMiddleware).Namespace,
"Access_Token",
"v1"
};
public byte[] Protect(byte[] userData)
{
throw new NotImplementedException();
}
public byte[] Unprotect(byte[] protectedData)
{
return System.Web.Security.MachineKey.Unprotect(protectedData, _purpose);
} }
I created a sample project for deserializing bearer tokens, which are encrypted using the MachineKeyDataProtector. 我创建了一个用于反序列化承载令牌的示例项目,它使用MachineKeyDataProtector进行加密。 You can take a look at the source code.
您可以查看源代码。
You can read JWT and create Principals and Identity object using the System.IdentityModel.Tokens.Jwt package - https://www.nuget.org/packages/System.IdentityModel.Tokens.Jwt/ . 您可以使用System.IdentityModel.Tokens.Jwt包读取JWT并创建Principals和Identity对象 - https://www.nuget.org/packages/System.IdentityModel.Tokens.Jwt/ 。
Here's a quick example that shows the options available when reading and validating the token, 这是一个快速示例,显示了读取和验证令牌时可用的选项,
private ClaimsIdentity GetIdentityFromToken(string token, X509Certificate2 certificate)
{
var tokenDecoder = new JwtSecurityTokenHandler();
var jwtSecurityToken = (JwtSecurityToken)tokenDecoder.ReadToken(token);
SecurityToken validatedToken;
var principal = tokenDecoder.ValidateToken(
jwtSecurityToken.RawData,
new TokenValidationParameters()
{
ValidateActor = false,
ValidateIssuer = false,
ValidateAudience = false,
ValidateLifetime = false,
ValidateIssuerSigningKey = false,
RequireExpirationTime = false,
RequireSignedTokens = false,
IssuerSigningToken = new X509SecurityToken(certificate)
},
out validatedToken);
return principal.Identities.FirstOrDefault();
}
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