C# 当您错误输入密码时,向用户显示一条消息ASP.NET Core 3.0 MVC
如果用户输入的密码不正确,则会出现以下消息: 无效的登录尝试 但当用户未验证其电子邮件时,也会显示此消息。如何向用户显示每种情况的消息C# 当您错误输入密码时,向用户显示一条消息ASP.NET Core 3.0 MVC,c#,asp.net-core,asp.net-core-identity,C#,Asp.net Core,Asp.net Core Identity,如果用户输入的密码不正确,则会出现以下消息: 无效的登录尝试 但当用户未验证其电子邮件时,也会显示此消息。如何向用户显示每种情况的消息 if (ModelState.IsValid) { // This doesn't count login failures towards account lockout // To enable password failures to trigger account lockout, set lockoutOnFailure: true
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: true);
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();
}
}
例如,它通过UserManager
public virtual async Task<SignInResult> PasswordSignInAsync(string userName, string password,
bool isPersistent, bool lockoutOnFailure)
{
var user = await UserManager.FindByNameAsync(userName);
if (user == null)
{
return SignInResult.Failed;
}
return await PasswordSignInAsync(user, password, isPersistent, lockoutOnFailure);
}
公共虚拟异步任务密码SigninaSync(字符串用户名、字符串密码、,
bool Ispersist,bool LockoutOn故障)
{
var user=await UserManager.FindByNameAsync(用户名);
if(user==null)
{
返回信号结果失败;
}
return wait PasswordSignInAsync(用户、密码、ispersist、lockoutOnFailure);
}
您可以添加这些逻辑来标识用户名或密码是否无效
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(LoginInput.Email, LoginInput.Password, LoginInput.RememberMe, lockoutOnFailure: true);
if (result.Succeeded)
{
_logger.LogInformation("User logged in.");
return LocalRedirect(returnUrl);
}
if (result.RequiresTwoFactor)
{
return RedirectToPage("./LoginWith2fa", new { ReturnUrl = returnUrl, RememberMe = LoginInput.RememberMe });
}
if (result.IsLockedOut)
{
_logger.LogWarning("User account locked out.");
return RedirectToPage("./Lockout");
}
else
{
var user = await _userManager.FindByNameAsync(LoginInput.Email);
if (user == null)
{
ModelState.AddModelError(string.Empty, "Invalid UserName.");
}
else if (!await _userManager.CheckPasswordAsync(user, LoginInput.Password))
{
ModelState.AddModelError(string.Empty, "Invalid Password.");
}
return Page();
}
}
// If we got this far, something failed, redisplay form
return Page();
}
PostAsync上的公共异步任务(字符串returnUrl=null)
{
returnUrl=returnUrl??Url.Content(“~/”);
if(ModelState.IsValid)
{
//这不会将登录失败计入帐户锁定
//要启用密码故障触发帐户锁定,请设置lockoutOnFailure:true
var result=wait _signInManager.PasswordSignInAsync(LoginInput.Email,LoginInput.Password,LoginInput.RememberMe,lockoutOnFailure:true);
if(result.successed)
{
_logger.LogInformation(“用户登录”);
返回LocalRedirect(returnUrl);
}
if(结果要求系数)
{
return RedirectToPage(“./LoginWith2fa”,新的{ReturnUrl=ReturnUrl,RememberMe=LoginInput.RememberMe});
}
如果(结果IsLockedOut)
{
_logger.LogWarning(“用户帐户锁定”);
返回重定向Topage(“/锁定”);
}
其他的
{
var user=await\u userManager.FindByNameAsync(LoginInput.Email);
if(user==null)
{
AddModelError(string.Empty,“无效用户名”);
}
如果(!await_userManager.CheckPasswordAsync(user,LoginInput.Password))
{
AddModelError(string.Empty,“无效密码”);
}
返回页();
}
}
//如果我们走到这一步,有些东西失败了,重新显示形式
返回页();
}
小心不要透露太多信息。