public async Task <IActionResult> OnPostAsync()
{
// Get the current user.
var user = await _userManager.GetUserAsync(User);
// Check if the user does not exist.
if (user == null)
{
// Display a message.
TempData["StatusMessage"] = "Error: An error occured while trying to load the user data. If you are already logged in, please log out and try again.";
// Redirect to the home page.
return(RedirectToPage("/Index"));
}
// Define the variables to return to the view.
View = new ViewModel
{
IsEmailConfirmed = user.EmailConfirmed
};
// 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());
}
// Check if the e-mail is different than the current one.
if (Input.Email != user.Email)
{
// Check if an account with the new e-mail address already exists.
if (await _userManager.FindByEmailAsync(Input.Email) != null)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "An account with the new e-mail address already exists.");
// Return the page.
return(Page());
}
// Generate an e-mail change code.
var code = await _userManager.GenerateChangeEmailTokenAsync(user, Input.Email);
// Create the callback URL to be encoded in the change email.
var callbackUrl = _linkGenerator.GetUriByPage(HttpContext, "/Identity/ChangeEmail", handler: null, values: new { userId = user.Id, email = Input.Email, code = code });
// Define a new view model for the e-mail.
var emailChangeEmailViewModel = new EmailEmailChangeViewModel
{
OldEmail = user.Email,
NewEmail = Input.Email,
Url = callbackUrl,
ApplicationUrl = _linkGenerator.GetUriByPage(HttpContext, "/Index", handler: null, values: null)
};
// Send the e-mail change e-mail to the user.
await _emailSender.SendEmailChangeEmailAsync(emailChangeEmailViewModel);
// Display a message.
TempData["StatusMessage"] = $"Success: An e-mail has been sent to your current e-mail address. Please follow the instructions there in order to change the e-mail address associated with the account.";
// Redirect to page.
return(RedirectToPage());
}
// Display a message.
TempData["StatusMessage"] = "Success: All details were already up to date.";
// Redirect to page.
return(RedirectToPage());
}