Issue #3295765: Add option to hide username and related fields

  o365_sso_alter_login_form($form, $form_state, $form_id);

}

/**

 * Implements hook_form_FORM_ID_alter().

 */

function o365_sso_user_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {

  if ($form_id === 'user_form') {

    $config = \Drupal::config('o365_sso.settings');

    // We want to hide email, password and email fields for o365 users.

    if (!empty($config->get('hide_user_fields'))) {

      /** @var \Drupal\user\Entity\User $user */

      $user = \Drupal::routeMatch()->getParameter('user');

      /** @var \Drupal\externalauth\Authmap $authMap */

      $authMap = \Drupal::service('externalauth.authmap');

      $authMapUser = $authMap->get($user->id(), 'o365_sso');

      // Only do this for users that are a o365_sso authmap user.

      if ($authMapUser) {

        $form['account']['mail']['#access'] = FALSE;

        $form['account']['name']['#access'] = FALSE;

        $form['account']['pass']['#access'] = FALSE;

      }

    }

  }

}

/**

 * Function that we can use to change the login form.

 *

      '#default_value' => $config->get('auto_redirect'),

      '#description' => $this->t('When enabled anonymous users that access the /user/login page will automatically be redirected to the SSO login page. Users that use "local" users (like admins) can use the /user/drupal_login path to use the normal Drupal login.'),

    ];

    $form['redirect_login_destination'] = [

      '#type' => 'checkbox',

      '#title' => $this->t('Redirect after login to destination URL'),

      '#default_value' => $config->get('redirect_login_destination'),

    ];

    $form['hide_user_fields'] = [

      '#type' => 'checkbox',

      '#title' => $this->t('Hide the username, password and e-mail fields from the user edit form.'),

      '#default_value' => $config->get('hide_user_fields'),

      '#description' => $this->t('This is only applicable to users that have been added with the Office 365 connector module.'),

    ];

    return parent::buildForm($form, $form_state);

  }

      ->set('link_text', $form_state->getValue('link_text'))

      ->set('link_position', $form_state->getValue('link_position'))

      ->set('redirect_login_destination', $form_state->getValue('redirect_login_destination'))

      ->set('hide_user_fields', $form_state->getValue('hide_user_fields'))

      ->save();

  }