Asp.Net Core - Identity SignInManager - 如何使用附加条件登录以便用户登录（例如：ClientId、UserName 和 Password））

Question

如何在 Asp.Net Core 中使用额外条件登录 - Identity SignInManager

示例我想检查并验证ClientId 、 UserName 和 Password 以进行登录。

像这样的东西

var result = await SignInManager.PasswordSignInAsync(model.ClientId, model.Email, model.Password, model.RememberMe, shouldLockout: false);

请看下面的完整代码

        public async Task<IActionResult> OnPostAsync(string returnUrl = null)
        {
            returnUrl = returnUrl ?? Url.Content("~/");

            if (ModelState.IsValid)
            {
                // This doesn't count login failures towards account lockout
                // To enable password failures to trigger account lockout, set lockoutOnFailure: true
                var result = await _signInManager.PasswordSignInAsync(Input.Email, Input.Password, Input.RememberMe, lockoutOnFailure: false);

                if (result.Succeeded)
                {
                    _logger.LogInformation("User logged in.");
                    return LocalRedirect(returnUrl);
                }
                if (result.RequiresTwoFactor)
                {
                    return RedirectToPage("./LoginWith2fa", new { ReturnUrl = returnUrl, RememberMe = Input.RememberMe });
                }
                if (result.IsLockedOut)
                {
                    _logger.LogWarning("User account locked out.");
                    return RedirectToPage("./Lockout");
                }
                else
                {
                    ModelState.AddModelError(string.Empty, "Invalid login attempt.");
                    return Page();
                }
            }

            // If we got this far, something failed, redisplay form
            return Page();
        }```

Answer 1

我将推荐使用适配器模式方法，通过编写接口和包装器 class 来实现原始 SignInManager.PasswordSignInAsync 上的接口。

此包装器 class 将具有一个方法，该方法接收客户端 ID 以及参数的 rest，执行验证，然后在完成后调用 SignInManager.PasswordSignInAsync。

您的登录方法将通过使用接口调用包装器 class。 通过 startup.cs 进行netCore 依赖注入。

public interface ISignInManagerAdapter
{
    Task<Microsoft.AspNetCore.Identity.SignInResult>  PasswordWithClientIdSignInAsync(string clientId, string userName, string password, bool isPersistent, bool lockoutOnFailure);
}

public class SignInManagerAdapter
{ 
    private readonly IClientValidatorService _clientValidatorService;
    public SignInManagerAdapter(IClientValidatorService clientValidatorService)
    {
       //you can add dependency injection interfaces to constructor parameter like below example.
       this._clientValidatorService = clientValidatorService;
    }
    public async Task<Microsoft.AspNetCore.Identity.SignInResult>  PasswordWithClientIdSignInAsync(string clientId, string userName, string password, bool isPersistent, bool lockoutOnFailure)
    {
        var validationStatus = _clientValidatorService.ValidateClientId(clientId);
        if (validationStatus == "Active")
        {
           var result = await SignInManager.PasswordSignInAsync(model.ClientId, model.Email, model.Password, model.RememberMe, shouldLockout: false);
           //do something
        }
        else
        {
           //do something
        }
    }
}

Answer 2

他们发现的解决方案不止一种，我选择扩展signInManager。
@Markuzy 的上述回答也是正确的， https://stackoverflow.com/a/61211905/13305109

这是我的代码

public class MySignInManager<TUser> : SignInManager<MyUser> where TUser : class
{
    private readonly UserManager<MyUser> _userManager;
    private readonly MyContext _dbContext;
    private readonly IHttpContextAccessor _contextAccessor;

    public MySignInManager(UserManager<MyUser> userManager, IHttpContextAccessor contextAccessor, IUserClaimsPrincipalFactory<MyUser> claimsFactory, IOptions<IdentityOptions> optionsAccessor, ILogger<SignInManager<MyUser>> logger, MyContext dbContext, IAuthenticationSchemeProvider schemeProvider, IUserConfirmation<MyUser> confirmation) : base(userManager, contextAccessor, claimsFactory, optionsAccessor, logger, schemeProvider, confirmation)
    {
        _userManager = userManager ?? throw new ArgumentNullException(nameof(userManager));
        _contextAccessor = contextAccessor ?? throw new ArgumentNullException(nameof(contextAccessor));
        _dbContext = dbContext ?? throw new ArgumentNullException(nameof(dbContext));
    }

    public override async Task<SignInResult> PasswordSignInAsync(string userName, string password, bool isPersistent, bool lockoutOnFailure)
    {
        SignInResult signInResult = new SignInResult();

        //Login not allowed - ClientId required to login
        return await Task.FromResult(signInResult);
    }

    public async Task<SignInResult> PasswordSignInAsync(string clientId, string userName, string password, bool isPersistent, bool lockoutOnFailure)
    {      
        if(CheckIsClientIdValid(username, password))
        {
            var result = await base.PasswordSignInAsync(userName, password, isPersistent, lockoutOnFailure);
            return result;
        }
        else
        {
            SignInResult result = await Task.FromResult(new SignInResult());
            //Login not allowed - ClientId mismatch
            return result;
        }            
    }
}

并按顺序在 Startup.cs 中添加波纹管代码

services.AddSignInManager<MySignInManager<MyUser>>();

并用作

var result = await _signInManager.PasswordSignInAsync(Input.ClientId, Input.Email, Input.Password, Input.RememberMe, lockoutOnFailure: false);