public static IServiceCollection JwtAuthenticationForAPI(
this IServiceCollection services, TokenOptions tokenOptions)
{
if (tokenOptions == null)
{
throw new ArgumentNullException($"{nameof(tokenOptions)} is a required parameter. " +
$"Please make sure you've provided a valid instance with the appropriate values configured.");
}
services.AddScoped <IJwtTokenGenerator, JwtTokenGenerator>(
serviveProvider => new JwtTokenGenerator(tokenOptions));
services.AddAuthentication(options => {
options.DefaultAuthenticateScheme =
JwtBearerDefaults.AuthenticationScheme;
options.DefaultSignInScheme =
JwtBearerDefaults.AuthenticationScheme;
options.DefaultChallengeScheme =
JwtBearerDefaults.AuthenticationScheme;
}).
AddJwtBearer(JwtBearerDefaults.AuthenticationScheme, options =>
{
options.SaveToken = true;
options.TokenValidationParameters =
tokenOptions.ToTokenValidationParams();
});
return(services);
}
public static IServiceCollection AddJwtAuthenticationForApi(
this IServiceCollection services,
IConfiguration configuration)
{
var tokenOptions = new TokenOptions(
configuration["Token:Audience"],
configuration["Token:Issuer"],
configuration["Token:SigningKey"],
configuration["Token:ExpiryInMinutes"]);
services.AddScoped <IJwtTokenGenerator, JwtTokenGenerator>(serviceProvider =>
new JwtTokenGenerator(tokenOptions));
services.AddAuthentication(options =>
{
options.DefaultAuthenticateScheme = "JwtBearer";
options.DefaultChallengeScheme = "JwtBearer";
})
.AddJwtBearer("JwtBearer", options =>
{
options.TokenValidationParameters = tokenOptions.ToTokenValidationParams();
});
return(services);
}
public TokenWithClaimsPrincipal GetAccessTokenWithClaimsPrincipal(AuthenticatedUser user)
{
var accessToken = user.AccessToken;
var validationParams = _tokenOptions.ToTokenValidationParams();
var claimsPrincipal = ValidateToken(accessToken, validationParams);
return(new TokenWithClaimsPrincipal()
{
AccessToken = accessToken,
ClaimsPrincipal = claimsPrincipal,
AuthenticationProperties = CreateAuthenticationProperties(accessToken)
});
}
public static IServiceCollection AddJwtAuthenticationWithProtectedCookie(
this IServiceCollection services,
TokenOptions tokenOptions,
string applicationDiscriminator = null,
AuthUrlOptions authUrlOptions = null)
{
if (tokenOptions == null)
{
throw new ArgumentNullException(
$"{nameof(tokenOptions)} is a required parameter. " +
$"Please make sure you've provided a valid instance with the appropriate values configured.");
}
var hostingEnvironment = services.BuildServiceProvider()
.GetService <IHostingEnvironment>();
// The JwtAuthTicketFormat representing the cookie needs an IDataProtector and
// IDataSerialiser to correctly encrypt/decrypt and serialise/deserialise the payload
// respectively. This requirement is enforced by ISecureDataFormat interface in ASP.NET
// Core. Read more about ASP.NET Core Data Protection API here:
// https://docs.microsoft.com/en-us/aspnet/core/security/data-protection/
// NB: This is only required if you're using JWT with Cookie based authentication, for
// cookieless auth (such as with a Web API) the data protection and serialisation
// dependencies won't be needed. You simply need to set the validation params and add
// the token generator dependencies and use the right authentication extension below.
services.AddDataProtection(options =>
options.ApplicationDiscriminator =
$"{applicationDiscriminator ?? hostingEnvironment.ApplicationName}")
.SetApplicationName(
$"{applicationDiscriminator ?? hostingEnvironment.ApplicationName}");
services.AddScoped <IDataSerializer <AuthenticationTicket>, TicketSerializer>();
services.AddScoped <IJwtTokenGenerator, JwtTokenGenerator>(
serviceProvider =>
new JwtTokenGenerator(
tokenOptions));
services.AddAuthentication(options =>
{
options.DefaultAuthenticateScheme =
CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultSignInScheme =
CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultChallengeScheme =
CookieAuthenticationDefaults.AuthenticationScheme;
})
.AddCookie(options =>
{
// cookie expiration should be set the same as the token expiry (the default is 5
// mins). The token generator doesn't provide auto-refresh of an expired token so the
// user will be logged out the next time they try to access a secured endpoint. They
// will simply have to re-login and acquire a new token and by extension a new cookie.
// Perhaps in the future I can add some kind of hooks in the token generator that can
// let the referencing application know that the token has expired and the developer
// can then request a new token without the user having to re-login.
options.Cookie.Expiration = TimeSpan.FromMinutes(1);
// Specify the TicketDataFormat to use to validate/create the ASP.NET authentication
// ticket. Its important that the same validation parameters are passed to this class
// so that the token validation works correctly. The framework will call the
// appropriate methods in JwtAuthTicketFormat based on whether the cookie is being
// sent out or coming in from a previously authenticated user. Please bear in mind
// that if the incoming token is invalid (may be it was tampered or spoofed) the
// Unprotect() method in JwtAuthTicketFormat will simply return null and the
// authentication will fail.
options.TicketDataFormat = new JwtAuthTicketFormat(
tokenOptions.ToTokenValidationParams(),
services.BuildServiceProvider()
.GetService <IDataSerializer <AuthenticationTicket> >(),
services.BuildServiceProvider()
.GetDataProtector(new[]
{
$"{applicationDiscriminator ?? hostingEnvironment.ApplicationName}-Auth1"
}));
options.LoginPath = authUrlOptions != null ?
new PathString(authUrlOptions.LoginPath)
: new PathString("/Account/Login");
options.LogoutPath = authUrlOptions != null ?
new PathString(authUrlOptions.LogoutPath)
: new PathString("/Account/Logout");
options.AccessDeniedPath = options.LoginPath;
options.ReturnUrlParameter = authUrlOptions?.ReturnUrlParameter ?? "returnUrl";
});
return(services);
}
public static IServiceCollection AddJwtAuthenticationWithProtectedCookie(
this IServiceCollection services,
TokenOptions tokenOptions,
string applicationDiscriminator = null,
AuthUrlOptions authUrlOptions = null)
{
if (tokenOptions == null)
{
throw new ArgumentNullException(
$"{nameof(tokenOptions)} is a required parameter. " +
$"Please make sure you've provided a valid instance with the appropriate values configured.");
}
var hostingEnvironment = services.BuildServiceProvider()
.GetService <IHostingEnvironment>();
services.AddDataProtection(options =>
options.ApplicationDiscriminator =
$"{applicationDiscriminator ?? hostingEnvironment.ApplicationName}")
.SetApplicationName(
$"{applicationDiscriminator ?? hostingEnvironment.ApplicationName}");
services.AddScoped <IDataSerializer <AuthenticationTicket>, TicketSerializer>();
services.AddScoped <IJwtTokenGenerator, JwtTokenGenerator>(
serviceProvider =>
new JwtTokenGenerator(
tokenOptions));
services.AddAuthentication(options =>
{
options.DefaultAuthenticateScheme =
CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultSignInScheme =
CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultChallengeScheme =
CookieAuthenticationDefaults.AuthenticationScheme;
})
.AddCookie(options =>
{
options.Cookie.Expiration = TimeSpan.FromDays(1);
options.TicketDataFormat = new JwtAuthTicketFormat(
tokenOptions.ToTokenValidationParams(),
services.BuildServiceProvider()
.GetService <IDataSerializer <AuthenticationTicket> >(),
services.BuildServiceProvider()
.GetDataProtector(new[]
{
$"{applicationDiscriminator ?? hostingEnvironment.ApplicationName}-Auth1"
}));
options.LoginPath = authUrlOptions != null ?
new PathString(authUrlOptions.LoginPath)
: new PathString("/Account/Login");
options.LogoutPath = authUrlOptions != null ?
new PathString(authUrlOptions.LogoutPath)
: new PathString("/Account/Logout");
options.AccessDeniedPath = options.LoginPath;
options.ReturnUrlParameter = authUrlOptions?.ReturnUrlParameter ?? "returnUrl";
});
return(services);
}
