如何在.net Core 2.0中扩展SignInManager

Question

我在我的 User 类 (IsEnabled) 中设置了一个新属性，并希望登录管理器检查此属性，因此我按如下方式重写 PasswordSignInAsync：

public class AuthSignInManager<TUser> : SignInManager<User> where TUser : class
{
    private readonly UserManager<User> _userManager;
    private readonly AuthContext _db;
    private readonly IHttpContextAccessor _contextAccessor;

    public AuthSignInManager(
        UserManager<User> userManager, 
        IHttpContextAccessor contextAccessor, 
        IUserClaimsPrincipalFactory<User> claimsFactory, 
        IOptions<IdentityOptions> optionsAccessor, 
        ILogger<SignInManager<User>> logger, 
        AuthContext dbContext,
        IAuthenticationSchemeProvider schemeProvider
        )
        : base(userManager, contextAccessor, claimsFactory, optionsAccessor, logger, schemeProvider)
    {
        _userManager = userManager ?? throw new ArgumentNullException(nameof(userManager));
        _contextAccessor = contextAccessor ?? throw new ArgumentNullException(nameof(contextAccessor));
        _db = dbContext ?? throw new ArgumentNullException(nameof(dbContext));
    }

    public override Task<SignInResult> PasswordSignInAsync(string userName, string password, bool rememberMe, bool shouldLockout)
    {
        var user = UserManager.FindByEmailAsync(userName).Result;

        if ((user.IsEnabled.HasValue && !user.IsEnabled.Value) || !user.IsEnabled.HasValue)
        {
            return Task.FromResult(SignInResult.LockedOut);
        }

        return base.PasswordSignInAsync(userName, password, rememberMe, shouldLockout);
    }
}

我已将以下内容放入启动中：

        services.AddIdentity<User, IdentityRole>(config =>
            {
                config.SignIn.RequireConfirmedEmail = true;
            })
            .AddEntityFrameworkStores<AuthContext>()
            .AddDefaultTokenProviders()
            .AddUserManager<AuthSignInManager<User>>();

        services.AddScoped<SignInManager<User>, AuthSignInManager<User>>();

但是当我现在运行我的项目时，出现以下错误： 我做错了什么？

Answer 1

正如 Brad 指出的那样，初创公司不应该打电话给

AddUserManager

相反：

    .AddSignInManager<AuthSignInManager<User>>();

此行后面的行也可以完全删除，因为它实现了等效功能：

    services.AddScoped<SignInManager<User>, AuthSignInManager<User>>();

Answer 2

或许也可以改为：

public override async Task<SignInResult> PasswordSignInAsync(string userName, string password, bool rememberMe, bool shouldLockout)
{
    var user = await UserManager.FindByEmailAsync(userName);

    if ((user.IsEnabled.HasValue && !user.IsEnabled.Value) || !user.IsEnabled.HasValue)
    {
        return SignInResult.LockedOut;
    }

    return await base.PasswordSignInAsync(userName, password, rememberMe, shouldLockout);
}