/**
* Used to create user with facebook data
*
* @access public
* @param array $fbData facebook data of user
* @return void
*/
function facebook_connect_create_update_user($fbData)
{
elgg_load_library('facebook');
// need facebook account credentials
// backward compatibility for stalled-development FBConnect plugin
$user = FALSE;
$facebook_users = elgg_get_entities_from_metadata(array('type' => 'user', 'metadata_name_value_pairs' => array('name' => 'facebook_uid', 'value' => $fbData['user_profile']['id'])));
if (is_array($facebook_users) && count($facebook_users) == 1) {
// convert existing account
$user = $facebook_users[0];
// remove unused metadata
remove_metadata($user->getGUID(), 'facebook_uid');
remove_metadata($user->getGUID(), 'facebook_controlled_profile');
}
// create new user
if (!$user) {
// check new registration allowed
if (!facebook_connect_allow_new_users_with_facebook()) {
register_error(elgg_echo('registerdisabled'));
forward();
}
$email = $fbData['user_profile']['email'];
$users = get_user_by_email($email);
if (!$users) {
// Elgg-ify facebook credentials
if (!empty($fbData['user_profile']['username'])) {
$username = $fbData['user_profile']['username'];
} else {
$username = str_replace(' ', '', strtolower($fbData['user_profile']['name']));
}
$usernameTmp = $username;
while (get_user_by_username($username)) {
$username = $usernameTmp . '_' . rand(1000, 9999);
}
$password = generate_random_cleartext_password();
$name = $fbData['user_profile']['name'];
$user = new ElggUser();
$user->username = $username;
$user->name = $name;
$user->email = $email;
$user->access_id = ACCESS_PUBLIC;
$user->salt = generate_random_cleartext_password();
$user->password = generate_user_password($user, $password);
$user->owner_guid = 0;
$user->container_guid = 0;
$user->last_action = date("Y-m-d");
$user->last_login = date("Y-m-d");
$user->validated = 1;
$user->validated_method = 'facebook';
$user->language = 'en';
if (!$user->save()) {
register_error(elgg_echo('registerbad'));
forward();
} else {
// send mail to user
send_user_password_mail($email, $name, $username, $password);
// post status on facebook
if (facebook_connect_allow_post_on_facebook()) {
facebook_connect_post_status($fbData);
}
// pull in facebook icon
$url = 'https://graph.facebook.com/' . $fbData['user_profile']['id'] . '/picture?type=large';
facebook_connect_update_user_avatar($user, $url);
}
} else {
$user = $users[0];
}
}
// set facebook services tokens
elgg_set_plugin_user_setting('uid', $fbData['user_profile']['id'], $user->guid);
elgg_set_plugin_user_setting('access_token', $fbData['user_profile']['accessToken'], $user->guid);
return $user;
}
/**
* Log in a user with facebook.
*/
function facebook_connect_login()
{
global $CONFIG;
elgg_load_library('facebook');
// sanity check
if (!facebook_connect_allow_sign_on_with_facebook()) {
forward();
}
$facebook = facebookservice_api();
$access_token = $facebook->getAccessToken();
// Get User ID
$userID = $facebook->getUser();
if ($userID) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
$userID = null;
register_error(elgg_echo('facebook_connect:login:error'));
forward();
}
} else {
system_message(elgg_echo('loginerror'));
forward();
}
// attempt to find user and log them in.
// else, create a new user.
$options = array('type' => 'user', 'plugin_user_setting_name_value_pairs' => array('uid' => $userID, 'access_token' => $access_token), 'plugin_user_setting_name_value_pairs_operator' => 'OR', 'limit' => 0);
$users = elgg_get_entities_from_plugin_user_settings($options);
if (!empty($users)) {
if (count($users) == 1 && login($users[0])) {
system_message(elgg_echo('facebook_connect:login:success'));
elgg_set_plugin_user_setting('access_token', $access_token, $users[0]->guid);
if (empty($users[0]->email)) {
$data = $facebook->api('/me');
$email = $data['email'];
$user = get_entity($users[0]->guid);
$user->email = $email;
$user->save();
}
} else {
system_message(elgg_echo('facebook_connect:login:error'));
}
forward();
} else {
// need facebook account credentials
$data = $facebook->api('/me');
// backward compatibility for stalled-development FBConnect plugin
$user = FALSE;
$facebook_users = elgg_get_entities_from_metadata(array('type' => 'user', 'metadata_name_value_pairs' => array('name' => 'facebook_uid', 'value' => $userID)));
if (is_array($facebook_users) && count($facebook_users) == 1) {
// convert existing account
$user = $facebook_users[0];
login($user);
// remove unused metadata
remove_metadata($user->getGUID(), 'facebook_uid');
remove_metadata($user->getGUID(), 'facebook_controlled_profile');
}
// create new user
if (!$user) {
// check new registration allowed
if (!facebook_connect_allow_new_users_with_facebook()) {
register_error(elgg_echo('registerdisabled'));
forward();
}
$userSave = 0;
$email = $data['email'];
$users = get_user_by_email($email);
if (!$users) {
// Elgg-ify facebook credentials
$username = str_replace(' ', '', strtolower($data['name']));
while (get_user_by_username($username)) {
$username = str_replace(' ', '', strtolower($data['name'])) . '_' . rand(1000, 9999);
}
$permissions = $facebook->api("/me/permissions");
if (array_key_exists('publish_stream', $permissions['data'][0])) {
$postWall = true;
} else {
$postWall = false;
}
$password = generate_random_cleartext_password();
$name = $data['name'];
$user = new ElggUser();
$user->username = $username;
$user->name = $name;
$user->email = $email;
$user->location = $data['locate'];
$user->website = $data['link'];
$user->access_id = ACCESS_PUBLIC;
$user->salt = generate_random_cleartext_password();
$user->password = generate_user_password($user, $password);
$user->owner_guid = 0;
$user->container_guid = 0;
if ($postWall) {
$user->post_wall = true;
}
$userSave = 1;
} else {
$user = $users[0];
}
$site = elgg_get_site_entity();
if ($postWall) {
$message = $user->name . ' just synchronized Facebook account with ' . $site->name;
$params = array('link' => elgg_get_site_url(), 'message' => $message, 'picture' => elgg_get_site_url() . '_graphics/elgg_logo.png', 'description' => $site->name . ' is the social network for connecting people.');
$status = $facebook->api('/me/feed', 'POST', $params);
}
if ($userSave) {
$userGuid = $user->save();
if (!$userGuid) {
register_error(elgg_echo('registerbad'));
forward();
}
send_user_password_mail($email, $name, $username, $password);
$forward = "profile/{$user->username}";
} else {
$forward = "";
}
}
// set facebook services tokens
elgg_set_plugin_user_setting('uid', $userID, $user->guid);
elgg_set_plugin_user_setting('access_token', $access_token, $user->guid);
// pull in facebook icon
$url = 'https://graph.facebook.com/' . $userID . '/picture?type=large';
facebook_connect_update_user_avatar($user, $url);
// login new user
if (login($user)) {
system_message(elgg_echo('facebook_connect:login:success'));
} else {
system_message(elgg_echo('facebook_connect:login:error'));
}
forward($forward, 'facebook_connect');
}
// register login error
register_error(elgg_echo('facebook_connect:login:error'));
forward();
}