OWIN中IIS主机的默认OAuth AccessTokenFormat实现是什么？

Question

Web API 2 OWIN承载令牌认证 - AccessTokenFormat null？

默认/令牌端点工作正常,我可以从那里获得令牌,但我需要在票证上使用AccessTokenFormat.Protect方法为externalLogin生成accessToken.

基本上我的实现与这个实现几乎相同,我遇到了同样的问题,即AccessTokenFormat为null.从文档中可以看出:

用于保护访问令牌中包含的信息的数据格式.如果应用程序未提供,则默认数据保护提供程序取决于主机服务器.IIS上的SystemWeb主机将使用ASP.NET机器密钥数据保护,而HttpListener和其他自托管服务器将使用DPAPI数据保护.如果分配了不同的访问令牌提供程序或格式,则必须将兼容的实例分配给资源服务器的OAuthBearerAuthenticationOptions.AccessTokenProvider或OAuthBearerAuthenticationOptions.AccessTokenFormat属性.

在我看来,如果未分配AccessTokenFormat,主机将为其提供基本实现.但我不认为它在这里有效.有没有办法找到ISecureDataFormatAccessTokenFormat的默认实现并手动将其分配给变量？

或者有没有人有其他想法如何解决这个问题？

更新:我获取katana的源代码并找到OAuthAuthorizationServerMiddleware类,从源代码我可以看到以下代码:

if (Options.AccessTokenFormat == null)
        {
            IDataProtector dataProtecter = app.CreateDataProtector(
                typeof(OAuthAuthorizationServerMiddleware).Namespace,
                "Access_Token", "v1");
            Options.AccessTokenFormat = new TicketDataFormat(dataProtecter);
        }

在我的Startup.Auth中,这是我的代码:

     static Startup()
    {
        PublicClientId = "self";

        UserManagerFactory = () => new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(new ApplicationDbContext()));

        OAuthOptions = new OAuthAuthorizationServerOptions()
        {
            TokenEndpointPath = new PathString("/Token"),
            AuthorizeEndpointPath = new PathString("/api/Account/ExternalLogin"),
            Provider = new ApplicationOAuthProvider(PublicClientId, UserManagerFactory),
            AccessTokenExpireTimeSpan = TimeSpan.FromDays(14),
            AllowInsecureHttp = true
        };

        OAuthBearerOptions = new OAuthBearerAuthenticationOptions();
        OAuthBearerOptions.AccessTokenFormat = OAuthOptions.AccessTokenFormat;
        OAuthBearerOptions.AccessTokenProvider = OAuthOptions.AccessTokenProvider;
        OAuthBearerOptions.AuthenticationMode = OAuthOptions.AuthenticationMode;
        OAuthBearerOptions.AuthenticationType = OAuthOptions.AuthenticationType;
        OAuthBearerOptions.Description = OAuthOptions.Description;

        OAuthBearerOptions.Provider = new CustomBearerAuthenticationProvider();
        OAuthBearerOptions.SystemClock = OAuthOptions.SystemClock;
    }

    public void ConfigureAuth(IAppBuilder app)
    {
        // Configure the db context and user manager to use a single instance per request
        app.CreatePerOwinContext(ApplicationDbContext.Create);
        app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);


        app.UseOAuthAuthorizationServer(OAuthOptions);

        // Enable the application to use bearer tokens to authenticate users
        app.UseOAuthBearerTokens(OAuthOptions);
        // Enable the application to use a cookie to store information for the signed in user
        // and to use a cookie to temporarily store information about a user logging in with a third party login provider
        // Configure the sign in cookie
        app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
            LoginPath = new PathString("/Account/Login"),
            Provider = new CookieAuthenticationProvider
            {
                OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
                    validateInterval: TimeSpan.FromMinutes(30),
                    regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))
            }
        });
        // Use a cookie to temporarily store information about a user logging in with a third party login provider
        app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);

}

我在WebApiConfig中也有以下内容

// Web API configuration and services
        // Configure Web API to use only bearer token authentication.
        config.SuppressDefaultHostAuthentication();
        config.Filters.Add(new HostAuthenticationFilter(OAuthDefaults.AuthenticationType));

我不确定为什么 app.UseOAuthAuthorizationServer(OAuthOptions);不设置accessTokenFormat

Answer 1

我不确定为什么它没有正确设置,但我拿出代码并将其分配给我自己.这是我的最终工作代码如下:

      public void ConfigureAuth(IAppBuilder app)
    {
        // Configure the db context and user manager to use a single instance per request
        app.CreatePerOwinContext(ApplicationDbContext.Create);
        app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);


        OAuthOptions = new OAuthAuthorizationServerOptions()
        {
            TokenEndpointPath = new PathString("/Token"),
            Provider = new ApplicationOAuthProvider(PublicClientId, UserManagerFactory),
            AccessTokenFormat = new TicketDataFormat(app.CreateDataProtector(
               typeof(OAuthAuthorizationServerMiddleware).Namespace,
               "Access_Token", "v1")),
            RefreshTokenFormat = new TicketDataFormat(app.CreateDataProtector(
                typeof(OAuthAuthorizationServerMiddleware).Namespace,
                "Refresh_Token", "v1")),
            AccessTokenProvider = new AuthenticationTokenProvider(),
            RefreshTokenProvider = new AuthenticationTokenProvider(),
            AccessTokenExpireTimeSpan = TimeSpan.FromDays(14),
            AllowInsecureHttp = true
        };

        OAuthBearerOptions = new OAuthBearerAuthenticationOptions();
        OAuthBearerOptions.AccessTokenFormat = OAuthOptions.AccessTokenFormat;
        OAuthBearerOptions.AccessTokenProvider = OAuthOptions.AccessTokenProvider;
        OAuthBearerOptions.AuthenticationMode = OAuthOptions.AuthenticationMode;
        OAuthBearerOptions.AuthenticationType = OAuthOptions.AuthenticationType;
        OAuthBearerOptions.Description = OAuthOptions.Description;

        OAuthBearerOptions.Provider = new CustomBearerAuthenticationProvider();
        OAuthBearerOptions.SystemClock = OAuthOptions.SystemClock;

        app.UseOAuthAuthorizationServer(OAuthOptions);
        app.UseOAuthBearerAuthentication(OAuthBearerOptions);

        // Enable the application to use a cookie to store information for the signed in user
        // and to use a cookie to temporarily store information about a user logging in with a third party login provider
        // Configure the sign in cookie
        app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
            LoginPath = new PathString("/Account/Login"),
            Provider = new CookieAuthenticationProvider
            {
                OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
                    validateInterval: TimeSpan.FromMinutes(30),
                    regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))
            }
        });
        // Use a cookie to temporarily store information about a user logging in with a third party login provider
        app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
        }