%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* Licence: GPL
* Please contact CBlue regarding any licences issues.
* Author: noel@cblue.be
* Copyright: CBlue SPRL, 20XX.
*
* External login module : FACEBOOK
*
* This files provides the facebookConnect() and facebook_get_url functions
* Please edit the facebook.conf.php file to adapt it to your fb application parameter
*/
use Facebook\Exceptions\FacebookResponseException;
use Facebook\Exceptions\FacebookSDKException;
use Facebook\Facebook;
require_once __DIR__.'/../../inc/global.inc.php';
require_once __DIR__.'/facebook.init.php';
require_once __DIR__.'/functions.inc.php';
/**
* This function connect to facebook and retrieves the user info
* If user does not exist in chamilo, it creates it and logs in
* If user already exists, it updates his info.
*
* @throws FacebookSDKException
*/
function facebookConnect()
{
$fb = new Facebook([
'app_id' => $GLOBALS['facebook_config']['appId'],
'app_secret' => $GLOBALS['facebook_config']['secret'],
'default_graph_version' => 'v21.0',
]);
$helper = $fb->getRedirectLoginHelper();
try {
$accessToken = $helper->getAccessToken();
} catch (FacebookResponseException $e) {
Display::addFlash(
Display::return_message('Facebook Graph returned an error: '.$e->getMessage(), 'error')
);
header('Location: '.api_get_path(WEB_PATH));
exit;
} catch (FacebookSDKException $e) {
Display::addFlash(
Display::return_message('Facebook SDK returned an error: '.$e->getMessage(), 'error')
);
header('Location: '.api_get_path(WEB_PATH));
exit;
}
if (!isset($accessToken)) {
if (!$helper->getError()) {
return;
}
if (isset($_GET['loginFailed'])) {
return;
}
$error = implode('<br>', [
'Error: '.$helper->getError(),
'Error Code: '.$helper->getErrorCode(),
'Error Reason: '.$helper->getErrorReason(),
'Error Description: '.$helper->getErrorDescription(),
]);
Display::addFlash(
Display::return_message($error, 'error', false)
);
header('Location: '.api_get_path(WEB_PATH));
exit;
}
$oAuth2Client = $fb->getOAuth2Client();
$tokenMetadata = $oAuth2Client->debugToken($accessToken);
$tokenMetadata->validateAppId($GLOBALS['facebook_config']['appId']);
$tokenMetadata->validateExpiration();
if (!$accessToken->isLongLived()) {
try {
$accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
} catch (FacebookSDKException $e) {
Display::addFlash(
Display::return_message('Error getting long-lived access token: '.$e->getMessage(), 'error')
);
header('Location: '.api_get_path(WEB_PATH));
exit;
}
}
try {
$response = $fb->get('/me?fields=id,first_name,last_name,locale,email', $accessToken->getValue());
} catch (FacebookResponseException $e) {
Display::addFlash(
Display::return_message('Graph returned an error: '.$e->getMessage(), 'error')
);
header('Location: '.api_get_path(WEB_PATH));
exit;
} catch (FacebookSDKException $e) {
Display::addFlash(
Display::return_message('Facebook SDK returned an error: '.$e->getMessage(), 'error')
);
header('Location: '.api_get_path(WEB_PATH));
exit;
}
$user = $response->getGraphUser();
$language = facebookPluginGetLanguage($user->getField('locale', ''));
if (!$language) {
$language = 'english';
}
$u = [
'firstname' => $user->getFirstName(),
'lastname' => $user->getLastName(),
'status' => STUDENT,
'email' => $user->getEmail(),
'username' => changeToValidChamiloLogin($user->getEmail()),
'language' => $language,
'password' => 'facebook',
'auth_source' => 'facebook',
'extra' => [],
];
$chamiloUinfo = api_get_user_info_from_email($user->getEmail());
$_user['uidReset'] = true;
$_user['language'] = $language;
if ($chamiloUinfo === false) {
// We have to create the user
$chamilo_uid = external_add_user($u);
if ($chamilo_uid === false) {
Display::addFlash(
Display::return_message(get_lang('UserNotRegistered'), 'error')
);
header('Location: '.api_get_path(WEB_PATH));
exit;
}
$_user['user_id'] = $chamilo_uid;
$_SESSION['_user'] = $_user;
header('Location: '.api_get_path(WEB_PATH));
exit();
}
// User already exists, update info and login
$chamilo_uid = $chamiloUinfo['user_id'];
$u['user_id'] = $chamilo_uid;
external_update_user($u);
$_user['user_id'] = $chamilo_uid;
$_SESSION['_user'] = $_user;
header('Location: '.api_get_path(WEB_PATH));
exit();
}
/**
* Get facebook login url for the platform.
*
* @throws FacebookSDKException
*/
function facebookGetLoginUrl(): string
{
$fb = new Facebook([
'app_id' => $GLOBALS['facebook_config']['appId'],
'app_secret' => $GLOBALS['facebook_config']['secret'],
'default_graph_version' => 'v2.2',
]);
$helper = $fb->getRedirectLoginHelper();
return $helper->getLoginUrl(api_get_path(WEB_PATH).'?action=fbconnect', [
'email',
]);
}
/**
* Return a valid Chamilo login
* Chamilo login only use characters lettres, des chiffres et les signes _ . -.
*/
function changeToValidChamiloLogin(?string $in_txt): string
{
if (empty($in_txt)) {
return '';
}
return preg_replace("/[^a-zA-Z1-9_\-.]/", "_", $in_txt);
}
/**
* Get user language.
*/
function facebookPluginGetLanguage(string $language = 'en_US'): bool
{
$language = substr($language, 0, 2);
$sqlResult = Database::query(
"SELECT english_name FROM ".
Database::get_main_table(TABLE_MAIN_LANGUAGE).
" WHERE available = 1 AND isocode = '$language'"
);
if (Database::num_rows($sqlResult)) {
$result = Database::fetch_array($sqlResult);
return $result['english_name'];
}
return false;
}
Zerion Mini Shell 1.0