ConfigureAuth 后 ASP.NET 标识更改 ExpireTimeSpan

Question

我正在开发一个最近从自定义身份验证解决方案迁移到 ASP.NET Identity 的 Web 应用程序。在我们应用程序的某些部分中，执行的过程很长，可能需要长达一个小时才能运行。在正常情况下，我们希望用户在 30 分钟不活动后自动注销。但是，对于发生长进程的屏幕，我们希望扩大自动注销窗口，以便在进程完成之前它们不会被踢出。我目前正在努力解决如何使用 Identity 来实现这一点。我目前在我的 Startup.Auth.cs 文件中使用以下代码：

public partial class Startup
{
    // For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301883
    public void ConfigureAuth(IAppBuilder app)
    {
        // Configure the user manager and signin manager to use a single instance per request
        app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
        app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Create);

        // 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("/Login.aspx"),
            ExpireTimeSpan = TimeSpan.FromMinutes(30),
            SlidingExpiration = true,
            Provider = new CookieAuthenticationProvider
            {
                OnValidateIdentity =
                    SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser, int>(
                        TimeSpan.FromMinutes(30),
                        (manager, user) => user.GenerateUserIdentityAsync(manager),
                        userIdentity => userIdentity.GetUserId<int>())
            }
        });
    }
}

在调用ConfigureAuth 之后，我目前看不到任何修改ExpireTimeSpan 值的方法。我希望能够从 Web 表单页面更改 Page_Load 事件处理程序中的值。有人知道方法吗？

Answer 1

内部OnValidateIdentity

又名：

OnValidateIdentity = delegate(CookieValidateIdentityContext context) {
            var stampValidator = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser, int>(
                validateInterval: TimeSpan.FromMinutes(30),
                regenerateIdentityCallback: (manager, user) => user.GenerateUserIdentityAsync(manager),
                getUserIdCallback: (id) => (id.GetUserId<int>())
            );
            Task result = stampValidator.Invoke(context);

            int my_custom_minutes = 60; // run your logic here.
                // set it at GLOBAL level for all (future) users.
                context.Options.ExpireTimeSpan = TimeSpan.FromMinutes( my_custom_minutes );
                // set it for the current user only.
                context.Properties.ExpiresUtc = context.Properties.IssuedUtc.Value.AddMinutes( my_custom_minutes );

            return result;
}