IdentityServer4 can be easily deployed on Docker. Here are the general steps:
Create a Dockerfile for your IdentityServer4 application. Here is an example:
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build WORKDIR /app COPY *.sln . COPY src/IdentityServer4/*.csproj ./src/IdentityServer4/ RUN dotnet restore COPY . . WORKDIR /app/src/IdentityServer4 RUN dotnet build -c Release -o /out FROM build AS publish RUN dotnet publish -c Release -o /out FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS runtime WORKDIR /app COPY --from=publish /out . ENTRYPOINT ["dotnet", "IdentityServer4.dll"]
This Dockerfile uses the .NET SDK to build and publish your IdentityServer4 application, and then uses the .NET runtime to run it.
Build the Docker image using the following command:
docker build -t my-identity-server .
This command will build the Docker image and tag it as my-identity-server.
Run the Docker container using the following command:
docker run -p 5000:80 my-identity-server
This command will start the Docker container and map port 5000 on the host to port 80 in the container.
Access the IdentityServer4 application by navigating to http://localhost:5000 in your web browser.
Note that you will need to configure your IdentityServer4 application to use the appropriate database, authentication, and authorization settings for your environment. You can pass configuration settings to your application using environment variables or command-line arguments when you run the Docker container. For example, you can use the -e flag to set environment variables like this:
docker run -p 5000:80 -e ConnectionStrings__DefaultConnection="Server=...;Database=...;User=...;Password=..." my-identity-server
This sets the ConnectionStrings:DefaultConnection configuration value to a SQL Server connection string that is passed in as an environment variable.
To add external login with Identity Server 4 and ASP.NET Identity, you can follow these general steps:
Set up Identity Server 4: If you haven't already, you'll need to set up an instance of Identity Server 4. You can follow the Identity Server 4 documentation for more information on how to do this.
Configure external login providers: Configure the external login providers that you want to use in your application. This will involve setting up credentials and registering the external login providers with Identity Server 4.
Set up ASP.NET Identity: Set up ASP.NET Identity in your application if you haven't already. This will involve configuring the user and role stores, and setting up the authentication middleware.
Enable external login in ASP.NET Identity: Enable external login in ASP.NET Identity by configuring the authentication middleware to use the Identity Server 4 instance as an external authentication provider. You can do this using the AddOpenIdConnect extension method provided by the Microsoft.AspNetCore.Authentication.OpenIdConnect package. Here's an example:
services.AddAuthentication()
.AddCookie()
.AddOpenIdConnect("oidc", options =>
{
options.SignInScheme = IdentityConstants.ExternalScheme;
options.Authority = "https://youridentityserver.com";
options.ClientId = "your-client-id";
options.ClientSecret = "your-client-secret";
options.ResponseType = "code";
options.GetClaimsFromUserInfoEndpoint = true;
options.SaveTokens = true;
options.Scope.Add("openid");
options.Scope.Add("profile");
});
In this example, we're configuring the authentication middleware to use OpenID Connect as the external authentication provider, and specifying the Identity Server 4 instance as the authority. You'll need to replace the values for ClientId and ClientSecret with the appropriate values for your external login provider.
[HttpGet]
[Route("/signin-oidc")]
public async Task<IActionResult> SignInOidc()
{
var result = await HttpContext.AuthenticateAsync(IdentityConstants.ExternalScheme);
if (result.Succeeded)
{
var externalUser = result.Principal;
var claims = externalUser.Claims.ToList();
var user = await _userManager.FindByLoginAsync(externalUser.FindFirstValue(ClaimTypes.Email), result.Properties.Items["LoginProvider"]);
if (user == null)
{
// Create new user account if user doesn't exist
user = new ApplicationUser
{
UserName = externalUser.FindFirstValue(ClaimTypes.Email),
Email = externalUser.FindFirstValue(ClaimTypes.Email),
EmailConfirmed = true
};
var createUserResult = await _userManager.CreateAsync(user);
if (!createUserResult.Succeeded)
{
return BadRequest();
}
await _userManager.AddToRoleAsync(user, "User");
await _userManager.AddLoginAsync(user, new UserLoginInfo(result.Properties.Items["LoginProvider"], externalUser.FindFirstValue(ClaimTypes.NameIdentifier), result.Properties.Items["DisplayName"]));
}
var signInResult = await _signInManager.ExternalLoginSignInAsync(result.Properties.Items["LoginProvider"], externalUser.FindFirstValue(ClaimTypes.Email), isPersistent: false, bypassTwoFactor: true);
if (signInResult.Succeeded)
{
return Redirect("~/");
}
}
return BadRequest();
}
The IDX10630 error in Identity Server 4 occurs when Personally Identifiable Information (PII) is found in a token and the logging level is set to a level that hides PII. By default, Identity Server 4 hides PII in logging to protect sensitive data.
To resolve the error, you can either set the logging level to a level that displays PII, or you can remove the PII from the token. Here are some steps you can take:
Update the logging level: You can update the logging level to Information or Debug to see the PII in the logs. For example:
// Add logging to your Startup.cs file
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
loggerFactory.AddConsole(LogLevel.Information); // Set log level to Information
loggerFactory.AddDebug(); // Add Debug logs
}
Remove the PII: If the PII is not required in the token, you can remove it by configuring the token validation options. Here is an example of how to remove the sub (Subject) claim from the token:
// Add the following code to your Startup.cs file
services
.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(options =>
{
options.TokenValidationParameters = new TokenValidationParameters
{
NameClaimType = ClaimTypes.Name,
RoleClaimType = ClaimTypes.Role,
ValidIssuer = Configuration["Issuer"],
ValidAudience = Configuration["Audience"],
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["SigningKey"])),
ValidateLifetime = true,
ClockSkew = TimeSpan.Zero,
// Remove the 'sub' claim
// This line ensures that the PII is not included in the token
TokenValidationParameters = new TokenValidationParameters { NameClaimType = ClaimTypes.Name, RoleClaimType = ClaimTypes.Role, SaveSigninToken = true, RequireExpirationTime = true }
};
});
By setting SaveSigninToken = true and RequireExpirationTime = true in the TokenValidationParameters, the sub claim is removed from the token.
The Authorization Code Flow is one of the most commonly used flows in OAuth 2.0-based authentication and authorization systems, including Identity Server 4. In this flow, the client application exchanges an authorization code for an access token and a refresh token. Here's an example of how to use the Authorization Code Flow with Identity Server 4:
First, you need to configure Identity Server 4 to support the Authorization Code Flow. This involves configuring a client application and adding a user to the system. Here's an example of how to configure Identity Server 4 using the TestUsers and InMemoryClients:
public void ConfigureServices(IServiceCollection services)
{
services.AddIdentityServer()
.AddInMemoryClients(new List<Client>
{
new Client
{
ClientId = "myClient",
ClientSecrets = new List<Secret>
{
new Secret("mySecret".Sha256())
},
AllowedGrantTypes = GrantTypes.Code,
RedirectUris = new List<string>
{
"https://localhost:5001/signin-oidc"
},
AllowedScopes = new List<string>
{
"openid", "profile", "email", "myApi"
},
RequirePkce = true,
AllowPlainTextPkce = false
}
})
.AddTestUsers(new List<TestUser>
{
new TestUser
{
SubjectId = "123456",
Username = "alice",
Password = "password",
Claims = new List<Claim>
{
new Claim("name", "Alice Smith"),
new Claim("email", "[email protected]")
}
}
});
}
In this example, we're defining a client application with ClientId "myClient" and a ClientSecrets collection with a single secret "mySecret". We're allowing the GrantTypes.Code grant type, and we're defining a redirect URI that the client application will use to receive the authorization code.
We're also defining the allowed scopes for the client application, which include "openid", "profile", "email", and a custom scope "myApi". We're requiring the use of Proof Key for Code Exchange (PKCE) by setting RequirePkce to true, and we're disallowing the use of plaintext PKCE by setting AllowPlainTextPkce to false.
Finally, we're defining a test user with SubjectId "123456", Username "alice", and Password "password". We're also defining some custom claims for the user, such as a name and an email.
Next, you need to configure the client application to make use of the Authorization Code Flow. This involves setting up a client application using a library such as Microsoft.AspNetCore.Authentication.OpenIdConnect. Here's an example of how to configure the client application:
public void ConfigureServices(IServiceCollection services)
{
services.AddAuthentication(options =>
{
options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultChallengeScheme = OpenIdConnectDefaults.AuthenticationScheme;
})
.AddCookie()
.AddOpenIdConnect(options =>
{
options.Authority = "https://localhost:5000";
options.ClientId = "myClient";
options.ClientSecret = "mySecret";
options.ResponseType = "code";
options.SaveTokens = true;
options.Scope.Add("myApi");
options.CallbackPath = new PathString("/signin-oidc");
});
services.AddHttpClient();
services.AddControllersWithViews();
}
Implementing roles in IdentityServer4 using ASP.NET Identity involves a series of steps, including configuring the IdentityServer, creating roles, and assigning roles to users. Here's a step-by-step guide to help you get started:
Ensure that you have the necessary NuGet packages installed in your project:
In your Startup.cs file, add the following lines of code to configure IdentityServer with ASP.NET Identity:
using Microsoft.AspNetCore.Identity;
using IdentityServer4.EntityFramework.DbContexts;
using IdentityServer4.EntityFramework.Mappers;
// ...
public void ConfigureServices(IServiceCollection services)
{
// ...
services.AddIdentity<ApplicationUser, IdentityRole>()
.AddEntityFrameworkStores<ApplicationDbContext>();
services.AddIdentityServer()
.AddAspNetIdentity<ApplicationUser>()
.AddConfigurationStore(options =>
{
options.ConfigureDbContext = b => b.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"),
sql => sql.MigrationsAssembly(migrationsAssembly));
})
.AddOperationalStore(options =>
{
options.ConfigureDbContext = b => b.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"),
sql => sql.MigrationsAssembly(migrationsAssembly));
});
// ...
}
Create the necessary roles for your application using the RoleManager class. You can create roles during application startup or through a seeding mechanism. Here's an example of creating a role during application startup:
private async Task CreateRoles(IServiceProvider serviceProvider)
{
var roleManager = serviceProvider.GetRequiredService<RoleManager<IdentityRole>>();
string[] roles = { "Admin", "User" };
foreach (var role in roles)
{
var roleExists = await roleManager.RoleExistsAsync(role);
if (!roleExists)
{
await roleManager.CreateAsync(new IdentityRole(role));
}
}
}
To assign roles to users, you can use the UserManager class. Here's an example of assigning the "Admin" role to a user during registration:
public async Task<IActionResult> Register(RegisterViewModel model)
{
if (ModelState.IsValid)
{
var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
var result = await _userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await _userManager.AddToRoleAsync(user, "Admin");
await _signInManager.SignInAsync(user, isPersistent: false);
return RedirectToAction("Index", "Home");
}
AddErrors(result);
}
return View(model);
}
You can now protect your resources using role-based authorization by decorating your controllers or actions with the [Authorize] attribute:
[Authorize(Roles = "Admin")]
public IActionResult AdminDashboard()
{
return View();
}
Now, IdentityServer4 will include the user's roles as claims in the access token, which can be used to authorize access to protected resources based on their roles.