fbconnect_login.pages.inc in Facebook Connect 7.2

User pages callbacks for the fbconnect module.

File

fbconnect_login/fbconnect_login.pages.inc

<?php

/**
 * @file
 * User pages callbacks for the fbconnect module.
 */

/**
 * Menu callback.
 * Called when user perform Facebook registration
 */
function fbconnect_login_prompt_page() {
  $conf = fbconnect_get_config();
  $params = array(
    '!site_name' => $conf['invite_name'],
  );
  $reg_msg = t('Log in to !site_name with Facebook account', $params);
  $link_msg = t('Click here to connect your existing !site_name account with Facebook', $params);
  $reg_attr = array();
  if ($conf['fast_reg_mode']) {
    $reg_attr = array(
      'attributes' => array(
        'onclick' => 'Drupal.fbconnect.DoFastRegistration(this); return false;',
      ),
    );
  }
  $items = array(
    'items' => array(
      l($reg_msg, 'fbconnect/authorize', $reg_attr),
      l($link_msg, 'user', array(
        'query' => array(
          'destination' => 'fbconnect/link',
        ),
      )),
    ),
  );
  return theme('item_list', $items);
}

/**
 * Menu callback.
 * Logs user into site or redirects.
 */
function fbconnect_login_login_page($form, $form_state = array()) {
  $data = fbconnect_get_user_info(array(
    'name',
    'email',
  ));

  // User not logged into Facebook we dont have any information for them, let them log in.
  if (empty($data)) {
    return facebook_login_page($form, $form_state);
  }

  // Check if user has already registered with their Facebook account.
  $user_id = _is_fbconnect_user($data['id']);
  if ($user_id) {

    // User already registered Facebook account to site, log them in
    $form_state['uid'] = $user_id;
    user_login_submit($form, $form_state);
    drupal_set_message(t('You have been successfully logged in.'));
    if (!empty($_GET['destination'])) {
      drupal_goto($_GET['destination']);
    }
    else {
      drupal_goto('<front>');
    }
  }
  elseif (_email_already_exist($data['email'])) {

    // The user was not found in the fbconnect_users table, but the emial from Facebook might already have an account on coracle.
    // Redirect user to the login page with a message.
    drupal_set_message(t('This email address is already registered to an account. Please log in to this account with the username and password provided during registration'));
    $options = array(
      'query' => array(
        'fbconnect' => 'true',
      ),
    );
    drupal_goto('user/login', $options);
  }
  else {
    drupal_set_message(t('You do not have an account with this site. Create an account on this site with through Facebook <a href="!here">here</a>'), array(
      '!here' => url('fbconnect/authorize'),
    ));
  }
}

/**
 * Menu callback.
 * Called when user perform Facebook registration
 */
function fbconnect_login_authorize_page($form, $form_state = array()) {
  $conf = fbconnect_get_config();
  $data = fbconnect_get_user_info(array(
    'name',
    'email',
  ));

  // Check if user has already registered with thier Facebook account
  $uid = _is_fbconnect_user($data['id']);
  if ($uid) {

    // User already registered Facebook account to site, log them in
    $form_state['uid'] = $uid;
    user_login_submit($form, $form_state);
    if (!empty($_GET['fb-destination'])) {
      drupal_goto($_GET['fb-destination']);
    }
    else {
      drupal_goto('<front>');
    }
  }
  elseif (!empty($data['email']) && _email_already_exist($data['email']) && user_is_anonymous()) {

    // The user was not found in the fbconnect_users table, but the
    // email from Facebook might already have an account.
    // Redirect user to the login page with a message..
    drupal_set_message(t('This email address is already registered to an account. Please log in to this account with the username and password provided during registration'));
    $options = array(
      'query' => array(
        'fbconnect' => 'true',
      ),
    );
    drupal_goto('user/login', $options);
    return;
  }
  $form = drupal_retrieve_form('user_register_form', $form_state);
  $site = $conf['invite_name'];

  // #758918 : prevent users registration if admin has blocked free registration
  $user_reg_mode = variable_get('user_register', 1);
  if ($user_reg_mode == 0) {
    drupal_access_denied();
    return;
  }
  $form['account']['name']['#value'] = empty($form_state['input']['name']) ? $data['name'] : $form_state['input']['name'];
  $form['account']['name']['#parents'] = array(
    'name',
  );
  if (!empty($data['email'])) {
    $form['account']['mail']['#value'] = $data['email'];
    $form['account']['mail']['#parents'] = array(
      'mail',
    );
  }
  else {
    $form['account']['mail']['#value'] = $data['id'] . '@facebook.com';
    $form['account']['mail']['#parents'] = array(
      'mail',
    );
  }
  $form['fbconnect'] = array(
    '#type' => 'fieldset',
    '#title' => t('Facebook Connect'),
  );
  $form['fbconnect']['fb_visible'] = array(
    '#type' => 'checkbox',
    '#title' => t('Let my Facebook friends see me on @sitename', array(
      '@sitename' => $site,
    )),
    '#default_value' => 1,
  );
  if (variable_get('user_pictures', 0) && $conf['user_pictures'] == 'allow') {
    $form['fbconnect']['fb_avatar'] = array(
      '#type' => 'checkbox',
      '#title' => t('Use my Facebook picture as user picture'),
      '#description' => t('Your picture will be loaded from Facebook.'),
      '#default_value' => 1,
    );
  }
  $form_state['redirect'] = isset($_GET['destination']) ? $_GET['destination'] : '';
  $form['#validate'][] = 'fbconnect_login_register_form_validate';
  $form['#submit'][] = 'fbconnect_login_register_form_submit';

  // Fast registration mode, we by pass std drupal reg form.
  if ($conf['fast_reg_mode']) {
    $newname = $conf['fast_reg_autoname'] ? _fbconnect_get_username($data['name']) : $data['name'];

    //drupal_set_message('new name : ' . $newname);
    $form_state['values']['name'] = $newname;
    $form_state['values']['mail'] = $data['email'];
    $form_state['values']['pass'] = user_password();
    $form_state['values']['status'] = 1;
    $form_state['values']['fb_visible'] = 1;
    $form_state['values']['fb_avatar'] = 1;

    //to make validation work have to unset some form fields and settings Taxonomy fields cause errors

    //TODO:: check this code sure it will need to check for required profile fields and fill them with data
    foreach ($form as $key => $val) {

      //unset all cusom fields
      if (strstr($key, 'field_')) {

        //unset this custom field
        unset($form[$key]);
      }
    }
    $form_state['complete form'] = $form;

    //taxonomy linked fields causes issues with this validate form function
    drupal_validate_form('user_register', $form, $form_state);
    $success = !form_get_errors();
    if (!$success) {
      $dest = array(
        'query' => 'destination=fbconnect/link',
      );
      drupal_set_message(t('Facebook connect registration failed for the reasons listed. You may register now, or if you already have an account you can <a href="@login">log in</a> now and link your account', array(
        '@login' => url('user/login', $dest),
      )), 'warning');

      // Append form validation errors below the above warning.
      $messages = drupal_get_messages('error');
      foreach ($messages['error'] as $message) {
        drupal_set_message($message, 'error');
      }
      drupal_goto('user/register', $dest['query']);
    }
    fbconnect_login_register_form_submit($form, $form_state);
  }
  return $form;
}
function facebook_login_page(&$form, $form_state = array()) {
  $params['scope'] = 'email';
  $http_params = drupal_get_query_parameters();
  $options = array(
    'absolute' => TRUE,
    'query' => array(
      'token' => $http_params['token'],
    ),
  );
  if (module_exists('securepages') && securepages_match('fbconnect/authorize')) {
    $options['https'] = TRUE;
  }
  $redirect_uri = url('fbconnect/authorize', $options);
  drupal_goto($redirect_uri);
}

/**
 * Returns a name suggestion if the wanted username is already used.
 */
function _fbconnect_get_username($name_suggestion) {
  $query = db_select('users', 'u');
  $query
    ->condition('name', $name_suggestion);
  $query
    ->fields('u', array(
    'name',
  ));
  $query
    ->countQuery();
  $result = $query
    ->execute()
    ->fetchField();
  if ($result) {
    $counter = variable_get('fbconnect_namecounter', 1);
    $newname = 'fbuser' . $counter;
    $counter++;
    variable_set('fbconnect_namecounter', $counter);
  }
  else {
    $newname = $name_suggestion;
  }
  return $newname;
}

/**
 * User logged in state validate handler
 *
 * @param $form
 * @param $form_state
 */
function fbconnect_login_register_form_validate($form, &$form_state) {
  $fbuid = fbconnect_get_fbuid();

  // Make sure we have a Facebook user object by the time we get here otherwise
  // drop form and exit with error message.
  if ($fbuid == 0) {
    drupal_set_message(t('You are not logged into Facebook. Log into Facebook and try again.'), 'error');
    drupal_goto();
  }
}

/**
 * @param $form
 * @param $form_state
 * @throws \Exception
 */
function fbconnect_login_register_form_submit($form, &$form_state) {
  $fbuid = fbconnect_get_fbuid();
  if (_is_fbconnect_user($fbuid)) {
    drupal_set_message(t('Retrying registration. Your Facebook account is already assigned to one account on our site.'), 'error');
    watchdog('fbconnect', 'Error creating account for @fbuid', array(
      '@fbuid' => $fbuid,
    ), WATCHDOG_ALERT);
    drupal_goto();
  }
  if (variable_get('fbconnect_fast_reg', NULL)) {
    $user = user_save(NULL, $form_state['values']);
  }
  else {
    $user = $form_state['user'];
  }
  if (!$user) {
    drupal_set_message(t('Error saving user account.'), 'error');
    drupal_goto();
  }
  fbconnect_login_register($user->uid, $fbuid);
  $data['data']['fb_avatar'] = isset($form_state['values']['fb_avatar']) ? $form_state['values']['fb_avatar'] : 0;
  $data['data']['fb_visible'] = $form_state['values']['fb_visible'];
  $user = user_save($user, $data);
  $form_state['uid'] = $user->uid;
  user_login_submit(array(), $form_state);
  $_SESSION['fbconnect_feed']['type'] = 'register';
  $conf = fbconnect_get_config();
  if ($conf['fast_reg_mode']) {
    drupal_goto('user');
  }
}

/**
 * Menu callback fbconnect identities
 */
function fbconnect_login_user_identities($form_id, $account) {
  $conf = fbconnect_get_config();
  $current_fbuid = fbconnect_get_fbuid();

  // fbuid of currently logged in FB user
  $fbuid = _get_user_fbuid($account->uid);

  // fbuid of account being edited
  drupal_set_title(check_plain($account->name));
  $uid = NULL;
  if ($fbuid) {
    $uid = _is_fbconnect_user($fbuid);
    $account->fbuid = $fbuid;
  }
  if (!$uid && !empty($current_fbuid)) {

    // We have Facebook access for this user but we dont have the user in the fbconnect_users table, add him.
    fbconnect_login_register($account->uid, $current_fbuid);
    $uid = _is_fbconnect_user($current_fbuid);
  }
  if (isset($account->fbuid) && $account->fbuid) {
    return drupal_get_form('fbconnect_login_user_settings_form', $account);
  }
  elseif ($uid && $account->uid != $uid) {
    return theme('fbconnect_login_user_profile_tab_connected', array(
      'account' => $account,
      'conf' => $conf,
      'uid' => $uid,
    ));
  }
  else {
    return theme('fbconnect_login_user_profile_tab_unconnected', array(
      'account' => $account,
      'conf' => $conf,
      'uid' => $uid,
    ));
  }
}

/**
 *  This form allows the user to manage their Facebook connect settings.
 *
 *  Some options are visible only if Facebook session is active.
 */
function fbconnect_login_user_settings_form($form, $form_state, $account) {
  $conf = fbconnect_get_config();

  // These fields manage the visibility of the user,
  // if the option is enabled, user's Facebook friends
  // will be able to see his presence on this site
  $form['fb_visible'] = array(
    '#type' => 'checkbox',
    '#title' => t('Let my Facebook friends see me on @site', array(
      '@site' => $conf['invite_name'],
    )),
    '#description' => t('My Facebook friends will be able to see that I own an account on this website.'),
    '#default_value' => isset($account->data['fb_visible']) ? $account->data['fb_visible'] : NULL,
  );

  // Whether user picture is enabled,
  // users can choose to use his Facebook avatar as avatar
  if ($conf['user_pictures'] == 'allow') {
    $form['fb_avatar'] = array(
      '#type' => 'checkbox',
      '#title' => t('Use my Facebook picture as user picture'),
      '#description' => t('Your picture will be loaded from Facebook.'),
      '#default_value' => isset($account->data['fb_avatar']) ? $account->data['fb_avatar'] : NULL,
    );
  }
  if (!variable_get('user_pictures', 0)) {
    $form['fb_avatar']['#attributes'] = array(
      'disabled' => 'disabled',
    );
    $form['fb_avatar']['#description'] = t('Enable user picture support in !link', array(
      '!link' => l(t('User settings'), 'admin/config/people/accounts'),
    ));
  }
  $form['account'] = array(
    '#type' => 'value',
    '#value' => $account,
  );
  $form['fbconnect'] = array(
    '#title' => t('Facebook account'),
    '#type' => 'fieldset',
    '#collapsed' => TRUE,
    '#collapsible' => TRUE,
  );
  $form['fbconnect']['profile'] = array(
    '#type' => 'item',
    '#title' => t('Linked to this Facebook account'),
    '#markup' => '<fb:name uid="' . $account->fbuid . '" useyou="false" linked="true"></fb:name>',
  );
  $form['fbconnect']['unlink'] = array(
    '#type' => 'submit',
    '#description' => t('Click here to unlink this Facebook account'),
    '#value' => t('Unlink'),
    '#access' => !!facebook_client_session(),
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save settings'),
  );
  return $form;
}

/**
 * Handle post-validation user_settingsForm submission.
 */
function fbconnect_login_user_settings_form_submit($form, &$form_state) {
  $account = $form_state['values']['account'];
  $data['data']['fb_visible'] = $form_state['values']['fb_visible'];
  $data['data']['fb_avatar'] = $form_state['values']['fb_avatar'];
  if ($form_state['values']['op'] == $form['fbconnect']['unlink']['#value']) {
    if (fbconnect_login_unregister($account->fbuid)) {
      unset($data);
    }
    else {
      form_set_error('fbconnect', t("Something went wrong. Can't unlink account"));
    }
  }
  if (isset($data)) {
    user_save($account, $data);
  }
  drupal_set_message(t('Your configuration options have been saved.'));
}

/**
 * Make rendering of Facebook user picture themeable
 */
function theme_fbconnect_login_user_picture_override($variables) {
  $fbuid = $variables['fbuid'];
  $account = $variables['account'];
  $user_url = $variables['user_url'];
  $size = $variables['size'];
  $protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ? 'https' : 'http';
  $path = $protocol . '://graph.facebook.com/' . $fbuid . '/picture?type=' . $size;
  $image = theme('image', array(
    'path' => $path,
    'alt' => $account->name,
  ));
  return '<div class="picture">' . $image . '</div>';
}

/**
 * Make rendering of Facebook user profile tab themable
 */
function theme_fbconnect_login_user_profile_tab_connected($variables) {
  $account = $variables['account'];
  $conf = $variables['conf'];
  $uid = $variables['uid'];
  $site_name = $conf['invite_name'] ? $conf['invite_name'] : '';
  return t("Your current Facebook session is associated to another account on our site.\nYou can logout of Facebook and attempt to associate another Facebook account to your !site_name account, or you need to disconnect the current association.", array(
    '!site_name' => $site_name,
  ));
}
function theme_fbconnect_login_user_profile_tab_unconnected($variables) {
  return '<div>' . t('Click here to connect your Facebook account') . '</div><div class="fbconnect-button">' . fbconnect_login_render_button() . '</div>';
}

Functions

Name	Description
facebook_login_page
fbconnect_login_authorize_page	Menu callback. Called when user perform Facebook registration
fbconnect_login_login_page	Menu callback. Logs user into site or redirects.
fbconnect_login_prompt_page	Menu callback. Called when user perform Facebook registration
fbconnect_login_register_form_submit	_state
fbconnect_login_register_form_validate	User logged in state validate handler
fbconnect_login_user_identities	Menu callback fbconnect identities
fbconnect_login_user_settings_form	This form allows the user to manage their Facebook connect settings.
fbconnect_login_user_settings_form_submit	Handle post-validation user_settingsForm submission.
theme_fbconnect_login_user_picture_override	Make rendering of Facebook user picture themeable
theme_fbconnect_login_user_profile_tab_connected	Make rendering of Facebook user profile tab themable
theme_fbconnect_login_user_profile_tab_unconnected
_fbconnect_get_username	Returns a name suggestion if the wanted username is already used.