public async Task <IActionResult> OnPostAsync()
{
// Check if the reCaptcha is valid.
if (!await _reCaptchaChecker.IsValid(Input.ReCaptchaToken))
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "The reCaptcha verification failed.");
// Return the page.
return(Page());
}
// Check if the provided model is not valid.
if (!ModelState.IsValid)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "An error was encountered. Please check again the input fields.");
// Return the page.
return(Page());
}
// Get the user with the provided e-mail.
var user = await _userManager.FindByEmailAsync(Input.Email);
// Check if there wasn't any user found.
if (user == null)
{
// Display a message.
TempData["StatusMessage"] = "Error: The provided e-mail address is not associated with any user.";
// Redirect to the page.
return(RedirectToPage("/Account/Index"));
}
// Generate the password reset code for the user.
var code = await _userManager.GeneratePasswordResetTokenAsync(user);
// Get the callback URL to be encoded in the e-mail.
var callbackUrl = _linkGenerator.GetUriByPage(HttpContext, "/Identity/ResetPassword", handler: null, values: new { code = code });
var encodedUrl = HtmlEncoder.Default.Encode(callbackUrl);
// Define a new view model for the e-mail.
var emailViewModel = new EmailPasswordResetViewModel
{
Email = user.Email,
Url = encodedUrl,
ApplicationUrl = _linkGenerator.GetUriByPage(HttpContext, "/Index", handler: null, values: null)
};
// Send the password reset e-mail for the user.
await _emailSender.SendPasswordResetEmailAsync(emailViewModel);
// Display a message.
TempData["StatusMessage"] = "Success: Please check your e-mail. A message containing instructions for resetting your password has been sent.";
// Redirect to the home page.
return(RedirectToPage("/Index"));
}