public async Task <IActionResult> OnPostAsync() { // We get the current user. var user = await _userManager.GetUserAsync(User); // We check if the user exists or not. 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 view. View = new ViewModel { HasPassword = await _userManager.HasPasswordAsync(user) }; // 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()); } // Try to change the password or set a new one. var result = View.HasPassword ? await _userManager.ChangePasswordAsync(user, Input.OldPassword, Input.NewPassword) : await _userManager.AddPasswordAsync(user, Input.NewPassword); // Check if the password update wasn't successful. if (!result.Succeeded) { // Go over the encountered errors foreach (var error in result.Errors) { // and add them to the model ModelState.AddModelError(string.Empty, error.Description); } // Return the page. return(Page()); } // Define a new view model for the e-mail. var emailViewModel = new EmailPasswordChangedViewModel { Email = user.Email, Url = _linkGenerator.GetUriByPage(HttpContext, "/Account/Index", handler: null, values: null), ApplicationUrl = _linkGenerator.GetUriByPage(HttpContext, "/Index", handler: null, values: null) }; // Send the e-mail changed e-mail to the user. await _emailSender.SendPasswordChangedEmailAsync(emailViewModel); // Re-sign in the user to update the changes. await _signInManager.RefreshSignInAsync(user); // Display a message. TempData["StatusMessage"] = "Success: The password was successfully updated."; // Redirect to page. return(RedirectToPage()); }