OpenIddict

The OpenID Connect server you'll be addicted to.

What's OpenIddict?

OpenIddict aims at providing a simple and easy-to-use solution to implement an OpenID Connect server in any ASP.NET Core application.

Why an OpenID Connect server?

Adding an OpenID Connect server to your application allows you to support token authentication. It also allows you to manage all your users using local password or an external identity provider (e.g. Facebook or Google) for all your applications in one central place, with the power to control who can access your API and the information that is exposed to each client.

How does it work?

OpenIddict is based on ASP.NET Core Identity (for user management) and relies on AspNet.Security.OpenIdConnect.Server to control the OpenID Connect authentication flow. It comes with a built-in ASP.NET Core MVC controller and native views that you can easily replace by your own ones to fully customize your login experience:

OpenIddict fully supports the code/implicit/hybrid flows and the client credentials/resource owner password grants. For more information about these terms, please visit the OpenID website and read the OAuth2 specification.

Note: OpenIddict uses EntityFramework Core by default, but you can also provide your own store.

Getting started

To use OpenIddict, you need to:

Install the latest .NET Core tooling and update your packages to reference the RC2 final packages.
Have an existing project or create a new one: when creating a new project using Visual Studio's default ASP.NET Core template, using individual user accounts authentication is strongly recommended. When updating an existing project, you must provide your own AccountController to handle the registration process and the authentication flow.
Add the appropriate MyGet repositories to your NuGet sources. This can be done by adding a new NuGet.Config file at the root of your solution:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <packageSources>
    <add key="NuGet" value="https://api.nuget.org/v3/index.json" />
    <add key="aspnet-contrib" value="https://www.myget.org/F/aspnet-contrib/api/v3/index.json" />
  </packageSources>
</configuration>

Update your project.json to import the OpenIddict package:

"dependencies": {
    "OpenIddict": "1.0.0-*"
},

Configure the OpenIddict services in Startup.ConfigureServices:

public void ConfigureServices(IServiceCollection services) {
    services.AddMvc();

    services.AddEntityFramework()
        .AddSqlServer()
        .AddDbContext<ApplicationDbContext>(options =>
            options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));

    services.AddIdentity<ApplicationUser, IdentityRole>()
        .AddEntityFrameworkStores<ApplicationDbContext>()
        .AddDefaultTokenProviders()
        .AddOpenIddict(); // Add the OpenIddict services after registering the Identity services.
}

Note: for more information about the different options and configurations available, check out Configuration and options in the project wiki.

Add the OpenIddict middleware in your ASP.NET Core pipeline by calling app.UseOpenIddict() after app.UseIdentity():

public void Configure(IApplicationBuilder app) {
    app.UseIdentity();
    
    // Add all the external providers you need before registering OpenIddict:
    app.UseGoogleAuthentication();
    app.UseFacebookAuthentication();
    
    app.UseOpenIddict();
}

Note: UseOpenIddict() must be registered after app.UseIdentity() and the external providers.

Update your EntityFramework context to inherit from OpenIddictContext:

public class ApplicationDbContext : OpenIddictContext<ApplicationUser> {
    public ApplicationDbContext(DbContextOptions options)
        : base(options) {
    }
}

Note: although recommended, inheriting from OpenIddictContext is not mandatory. Alternatively, you can also create your own context and manually add the entity sets needed by OpenIddict:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser> {
    public ApplicationDbContext(DbContextOptions options)
        : base(options) {
    }

    public DbSet<Application> Applications { get; set; }
}

Register your client application:

using (var context = app.ApplicationServices.GetRequiredService<ApplicationDbContext>()) {
    context.Database.EnsureCreated();

    if (!context.Applications.Any()) {
        context.Applications.Add(new Application {
            // Assign a unique identifier to your client app:
            Id = "48BF1BC3-CE01-4787-BBF2-0426EAD21342",

            // Assign a display named used in the consent form page:
            DisplayName = "MVC6 client application",

            // Register the appropriate redirect_uri and post_logout_redirect_uri:
            RedirectUri = "http://localhost:53507/signin-oidc",
            LogoutRedirectUri = "http://localhost:53507/",

            // Generate a new derived key from the client secret:
            Secret = Crypto.HashPassword("secret_secret_secret"),

            // Note: use "public" for JS/mobile/desktop applications
            // and "confidential" for server-side applications.
            Type = OpenIddictConstants.ApplicationTypes.Confidential
        });

        context.SaveChanges();
    }
}

Support

Need help or wanna share your thoughts? Don't hesitate to join our dedicated chat rooms:

JabbR: https://jabbr.net/#/rooms/aspnet-contrib
Gitter: https://gitter.im/openiddict/openiddict-core

Contributors

OpenIddict is actively maintained by Kévin Chalet. Contributions are welcome and can be submitted using pull requests.

License

This project is licensed under the Apache License. This means that you can use, modify and distribute it freely. See http://www.apache.org/licenses/LICENSE-2.0.html for more details.

Sensarg22/openiddict-core