Chamilo is a learning management system focused on ease of use and accessibility
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
chamilo-lms/main/inc/global.inc.php

641 lines
24 KiB

<?php
/* For licensing terms, see /license.txt */
use Chamilo\CoreBundle\Component\Utils\ChamiloApi;
/**
* It is recommended that ALL Chamilo scripts include this important file.
* This script manages
* - include of /app/config/configuration.php;
* - include of several libraries: api, database, display, text, security;
* - selecting the main database;
* - include of language files.
*
* @package chamilo.include
*
* @todo remove the code that displays the button that links to the install page
* but use a redirect immediately. By doing so the $alreadyInstalled variable can be removed.
*/
define('SHOW_ERROR_CODES', false);
// Include the libraries that are necessary everywhere
require_once __DIR__.'/../../vendor/autoload.php';
require_once __DIR__.'/../../app/AppKernel.php';
$kernel = new AppKernel('', '');
// Determine the directory path where this current file lies.
// This path will be useful to include the other initialisation files.
$includePath = __DIR__;
// Include the main Chamilo platform configuration file.
$alreadyInstalled = false;
if (file_exists($kernel->getConfigurationFile())) {
require_once $kernel->getConfigurationFile();
$alreadyInstalled = true;
// Recalculate a system absolute path symlinks insensible.
$includePath = $_configuration['root_sys'].'main/inc/';
} else {
$_configuration = [];
//Redirects to the main/install/ page
if (!$alreadyInstalled) {
$global_error_code = 2;
// The system has not been installed yet.
require_once __DIR__.'/../inc/global_error_message.inc.php';
exit();
}
}
$kernel->setApi($_configuration);
// Ensure that _configuration is in the global scope before loading
// main_api.lib.php. This is particularly helpful for unit tests
if (!isset($GLOBALS['_configuration'])) {
$GLOBALS['_configuration'] = $_configuration;
}
// Include the main Chamilo platform library file.
require_once $_configuration['root_sys'].'main/inc/lib/api.lib.php';
$passwordEncryption = api_get_configuration_value('password_encryption');
if ($passwordEncryption === 'bcrypt') {
require_once __DIR__.'/../../vendor/ircmaxell/password-compat/lib/password.php';
}
// Check the PHP version
api_check_php_version($includePath.'/');
// Fix bug in IIS that doesn't fill the $_SERVER['REQUEST_URI'].
api_request_uri();
// Set web proxy environment variables
foreach ([
'proxy_settings/stream_context_create/https/proxy',
'proxy_settings/stream_context_create/http/proxy',
'proxy_settings/curl_setopt_array/CURLOPT_PROXY',
] as $path) {
$value = api_get_configuration_sub_value($path);
if (!empty($value) && is_string($value)) {
// libcurl reads environment variable https_proxy: https://curl.haxx.se/libcurl/c/libcurl-env.html
// \GuzzleHttp\Client::configureDefaults reads environment variable HTTPS_PROXY
foreach (['https_proxy', 'http_proxy', 'HTTPS_PROXY', 'HTTP_PROXY'] as $envVar) {
if (false === getenv($envVar)) {
putenv("$envVar=$value");
}
}
break;
}
}
define('_MPDF_TEMP_PATH', __DIR__.'/../../app/cache/mpdf/');
define('_MPDF_TTFONTDATAPATH', __DIR__.'/../../app/cache/mpdf/');
// Include the libraries that are necessary everywhere
require_once __DIR__.'/../../vendor/autoload.php';
// Do not over-use this variable. It is only for this script's local use.
$libraryPath = __DIR__.'/lib/';
// @todo convert this libs in classes
require_once $libraryPath.'database.constants.inc.php';
require_once $libraryPath.'formvalidator/FormValidator.class.php';
require_once $libraryPath.'text.lib.php';
require_once $libraryPath.'array.lib.php';
require_once $libraryPath.'online.inc.php';
require_once $libraryPath.'banner.lib.php';
require_once $libraryPath.'fileManage.lib.php';
require_once $libraryPath.'fileUpload.lib.php';
require_once $libraryPath.'fileDisplay.lib.php';
require_once $libraryPath.'course_category.lib.php';
if (!is_dir(_MPDF_TEMP_PATH)) {
mkdir(_MPDF_TEMP_PATH, api_get_permissions_for_new_directories(), true);
}
// Connect to the server database and select the main chamilo database.
// When $_configuration['db_persistent_connection'] is set, it is expected to be a boolean type.
/*$dbPersistConnection = api_get_configuration_value('db_persistent_connection');
// $_configuration['db_client_flags'] can be set in configuration.php to pass
// flags to the DB connection
$dbFlags = api_get_configuration_value('db_client_flags');
$params = array(
'server' => $_configuration['db_host'],
'username' => $_configuration['db_user'],
'password' => $_configuration['db_password'],
'persistent' => $dbPersistConnection,
'client_flags' => $dbFlags,
);*/
// Doctrine ORM configuration
$dbParams = [
'driver' => 'pdo_mysql',
'host' => $_configuration['db_host'],
'user' => $_configuration['db_user'],
'password' => $_configuration['db_password'],
'dbname' => $_configuration['main_database'],
// Only relevant for pdo_sqlite, specifies the path to the SQLite database.
'path' => isset($_configuration['db_path']) ? $_configuration['db_path'] : '',
// Only relevant for pdo_mysql, pdo_pgsql, and pdo_oci/oci8,
'port' => isset($_configuration['db_port']) ? $_configuration['db_port'] : '',
'driverOptions' => isset($_configuration['db_client_flags']) && is_array($_configuration['db_client_flags']) ? $_configuration['db_client_flags'] : [],
];
try {
$database = new \Database();
$database->connect($dbParams);
} catch (Exception $e) {
$global_error_code = 3;
// The database server is not available or credentials are invalid.
require $includePath.'/global_error_message.inc.php';
exit();
}
/* RETRIEVING ALL THE CHAMILO CONFIG SETTINGS FOR MULTIPLE URLs FEATURE*/
if (!empty($_configuration['multiple_access_urls'])) {
$_configuration['access_url'] = 1;
$access_urls = api_get_access_urls();
$root_rel = api_get_self();
$root_rel = substr($root_rel, 1);
$pos = strpos($root_rel, '/');
$root_rel = substr($root_rel, 0, $pos);
$protocol = 'http://';
if (!empty($_SERVER['HTTPS']) && strtoupper($_SERVER['HTTPS']) != 'OFF') {
$protocol = 'https://';
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
$protocol = 'https://';
}
//urls with subdomains (HTTP_HOST is preferred - see #6764)
$request_url_root = '';
if (empty($_SERVER['HTTP_HOST'])) {
if (empty($_SERVER['SERVER_NAME'])) {
$request_url_root = $protocol.'localhost/';
} else {
$request_url_root = $protocol.$_SERVER['SERVER_NAME'].'/';
}
} else {
$request_url_root = $protocol.$_SERVER['HTTP_HOST'].'/';
}
//urls with subdirs
$request_url_sub = $request_url_root.$root_rel.'/';
// You can use subdirs as multi-urls, but in this case none of them can be
// the root dir. The admin portal should be something like https://host/adm/
// At this time, subdirs will still hold a share cookie, so not ideal yet
// see #6510
foreach ($access_urls as $details) {
if ($request_url_sub == $details['url']) {
$_configuration['access_url'] = $details['id'];
break; //found one match with subdir, get out of foreach
}
// Didn't find any? Now try without subdirs
if ($request_url_root == $details['url']) {
$_configuration['access_url'] = $details['id'];
break; //found one match, get out of foreach
}
}
} else {
$_configuration['access_url'] = 1;
}
// Check if APCu is available. If so, store the value in $_configuration
if (extension_loaded('apcu')) {
$apcEnabled = ini_get('apc.enabled');
if (!empty($apcEnabled) && $apcEnabled != 'Off' && $apcEnabled != 'off') {
$_configuration['apc'] = true;
$_configuration['apc_prefix'] = $_configuration['main_database'].'_'.$_configuration['access_url'].'_';
}
}
$charset = 'UTF-8';
// Enables the portability layer and configures PHP for UTF-8
\Patchwork\Utf8\Bootup::initAll();
// Start session after the internationalization library has been initialized.
ChamiloSession::start($alreadyInstalled);
// access_url == 1 is the default chamilo location
if ($_configuration['access_url'] != 1) {
$url_info = api_get_access_url($_configuration['access_url']);
if ($url_info['active'] == 1) {
$settings_by_access = api_get_settings(null, 'list', $_configuration['access_url'], 1);
foreach ($settings_by_access as &$row) {
if (empty($row['variable'])) {
$row['variable'] = 0;
}
if (empty($row['subkey'])) {
$row['subkey'] = 0;
}
if (empty($row['category'])) {
$row['category'] = 0;
}
$settings_by_access_list[$row['variable']][$row['subkey']][$row['category']] = $row;
}
}
}
$result = api_get_settings(null, 'list', 1);
foreach ($result as &$row) {
if ($_configuration['access_url'] != 1) {
if ($url_info['active'] == 1) {
$var = empty($row['variable']) ? 0 : $row['variable'];
$subkey = empty($row['subkey']) ? 0 : $row['subkey'];
$category = empty($row['category']) ? 0 : $row['category'];
}
if ($row['access_url_changeable'] == 1 && $url_info['active'] == 1) {
if (isset($settings_by_access_list[$var]) &&
isset($settings_by_access_list[$var][$subkey]) &&
$settings_by_access_list[$var][$subkey][$category]['selected_value'] != '') {
if ($row['subkey'] == null) {
$_setting[$row['variable']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
} else {
$_setting[$row['variable']][$row['subkey']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
}
} else {
if ($row['subkey'] == null) {
$_setting[$row['variable']] = $row['selected_value'];
} else {
$_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
}
}
} else {
if ($row['subkey'] == null) {
$_setting[$row['variable']] = $row['selected_value'];
} else {
$_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
}
}
} else {
if ($row['subkey'] == null) {
$_setting[$row['variable']] = $row['selected_value'];
} else {
$_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
}
}
}
$result = api_get_settings('Plugins', 'list', $_configuration['access_url']);
$_plugins = [];
foreach ($result as &$row) {
$key = &$row['variable'];
if (isset($_setting[$key]) && is_string($_setting[$key])) {
$_setting[$key] = [];
}
if ($row['subkey'] == null) {
$_setting[$key][] = $row['selected_value'];
$_plugins[$key][] = $row['selected_value'];
} else {
$_setting[$key][$row['subkey']] = $row['selected_value'];
$_plugins[$key][$row['subkey']] = $row['selected_value'];
}
}
// Error reporting settings.
if (api_get_setting('server_type') == 'test') {
ini_set('display_errors', '1');
ini_set('html_errors', '1');
error_reporting(-1);
if (function_exists('opcache_reset')) {
opcache_reset();
}
} else {
error_reporting(E_COMPILE_ERROR | E_ERROR | E_CORE_ERROR);
}
ini_set('log_errors', '1');
// Specification for usernames:
// 1. ASCII-letters, digits, "." (dot), "_" (underscore) are acceptable, 40 characters maximum length.
// 2. Empty username is formally valid, but it is reserved for the anonymous user.
// 3. Checking the login_is_email portal setting in order to accept 100 chars maximum
$defaultUserNameLength = 50;
if (api_get_setting('login_is_email') == 'true') {
$defaultUserNameLength = 100;
}
define('USERNAME_MAX_LENGTH', $defaultUserNameLength);
// Load allowed tag definitions for kses and/or HTMLPurifier.
require_once $libraryPath.'formvalidator/Rule/allowed_tags.inc.php';
// Before we call local.inc.php, let's define a global $this_section variable
// which will then be usable from the banner and header scripts
$this_section = SECTION_GLOBAL;
// Including configuration files
$configurationFiles = [
'mail.conf.php',
'profile.conf.php',
'course_info.conf.php',
'add_course.conf.php',
'events.conf.php',
'auth.conf.php',
];
foreach ($configurationFiles as $file) {
$file = api_get_path(CONFIGURATION_PATH).$file;
if (file_exists($file)) {
require_once $file;
}
}
/* LOAD LANGUAGE FILES SECTION */
// if we use the javascript version (without go button) we receive a get
// if we use the non-javascript version (with the go button) we receive a post
$user_language = '';
$browser_language = '';
// see #8149
if (!empty($_SESSION['user_language_choice'])) {
$user_language = $_SESSION['user_language_choice'];
}
if (!empty($_GET['language'])) {
$user_language = $_GET['language'];
}
if (!empty($_POST['language_list'])) {
$user_language = str_replace('index.php?language=', '', $_POST['language_list']);
}
if (empty($user_language) && !empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) && !isset($_SESSION['_user'])) {
$l = SubLanguageManager::getLanguageFromBrowserPreference($_SERVER['HTTP_ACCEPT_LANGUAGE']);
if (!empty($l)) {
$user_language = $browser_language = $l;
}
}
// Include all files (first english and then current interface language)
$langpath = api_get_path(SYS_LANG_PATH);
/* This will only work if we are in the page to edit a sub_language */
if (isset($this_script) && $this_script == 'sub_language') {
// getting the arrays of files i.e notification, trad4all, etc
$language_files_to_load = SubLanguageManager::get_lang_folder_files_list(
api_get_path(SYS_LANG_PATH).'english',
true
);
//getting parent info
$parent_language = SubLanguageManager::get_all_information_of_language($_REQUEST['id']);
//getting sub language info
$sub_language = SubLanguageManager::get_all_information_of_language($_REQUEST['sub_language_id']);
$english_language_array = $parent_language_array = $sub_language_array = [];
foreach ($language_files_to_load as $language_file_item) {
$lang_list_pre = array_keys($GLOBALS);
//loading english
$path = $langpath.'english/'.$language_file_item.'.inc.php';
if (file_exists($path)) {
include $path;
}
$lang_list_post = array_keys($GLOBALS);
$lang_list_result = array_diff($lang_list_post, $lang_list_pre);
unset($lang_list_pre);
// english language array
$english_language_array[$language_file_item] = compact($lang_list_result);
//cleaning the variables
foreach ($lang_list_result as $item) {
unset(${$item});
}
$parent_file = $langpath.$parent_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
if (file_exists($parent_file) && is_file($parent_file)) {
include_once $parent_file;
}
// parent language array
$parent_language_array[$language_file_item] = compact($lang_list_result);
//cleaning the variables
foreach ($lang_list_result as $item) {
unset(${$item});
}
$sub_file = $langpath.$sub_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
if (file_exists($sub_file) && is_file($sub_file)) {
include $sub_file;
}
// sub language array
$sub_language_array[$language_file_item] = compact($lang_list_result);
//cleaning the variables
foreach ($lang_list_result as $item) {
unset(${$item});
}
}
}
// Checking if we have a valid language. If not we set it to the platform language.
$valid_languages = api_get_languages();
if (!empty($valid_languages)) {
if (!in_array($user_language, $valid_languages['folder'])) {
$user_language = api_get_setting('platformLanguage');
}
$language_priority1 = api_get_setting('languagePriority1');
$language_priority2 = api_get_setting('languagePriority2');
$language_priority3 = api_get_setting('languagePriority3');
$language_priority4 = api_get_setting('languagePriority4');
if (isset($_GET['language']) ||
(isset($_POST['language_list']) && !empty($_POST['language_list'])) ||
!empty($browser_language)
) {
$user_selected_language = $user_language; // $_GET['language']; or HTTP_ACCEPT_LANGUAGE
$_SESSION['user_language_choice'] = $user_selected_language;
$platformLanguage = $user_selected_language;
}
if (!empty($language_priority4) && api_get_language_from_type($language_priority4) !== false) {
$language_interface = api_get_language_from_type($language_priority4);
} else {
$language_interface = api_get_setting('platformLanguage');
}
if (!empty($language_priority3) && api_get_language_from_type($language_priority3) !== false) {
$language_interface = api_get_language_from_type($language_priority3);
} else {
if (isset($_SESSION['user_language_choice'])) {
$language_interface = $_SESSION['user_language_choice'];
}
}
if (!empty($language_priority2) && api_get_language_from_type($language_priority2) !== false) {
$language_interface = api_get_language_from_type($language_priority2);
} else {
if (isset($_user['language'])) {
$language_interface = $_user['language'];
}
}
if (!empty($language_priority1) && api_get_language_from_type($language_priority1) !== false) {
$language_interface = api_get_language_from_type($language_priority1);
} else {
if (isset($_course['language'])) {
$language_interface = $_course['language'];
}
}
// If language is set via browser ignore the priority
if (isset($_GET['language'])) {
$language_interface = $user_language;
}
// Load the user language, if user is entering in the terms and condition page
if (isset($_SESSION['term_and_condition']) && isset($_SESSION['term_and_condition']['user_id'])) {
$userTempId = $_SESSION['term_and_condition']['user_id'];
$userTempInfo = api_get_user_info($userTempId);
if (!empty($userTempInfo['language'])) {
$language_interface = $userTempInfo['language'];
}
}
$allow = api_get_configuration_value('show_language_selector_in_menu');
// Overwrite all lang configs and use the menu language
if ($allow) {
if (isset($_SESSION['user_language_choice'])) {
$userEntity = api_get_user_entity(api_get_user_id());
if ($userEntity) {
if (isset($_GET['language'])) {
$language_interface = $_SESSION['user_language_choice'];
$userEntity->setLanguage($language_interface);
Database::getManager()->merge($userEntity);
Database::getManager()->flush();
// Update cache
api_get_user_info(
api_get_user_id(),
true,
false,
true,
false,
true,
true
);
if (isset($_SESSION['_user'])) {
$_SESSION['_user']['language'] = $language_interface;
}
}
$language_interface = $_SESSION['user_language_choice'] = $userEntity->getLanguage();
}
} else {
$userInfo = api_get_user_info();
if (!empty($userInfo['language'])) {
$_SESSION['user_language_choice'] = $userInfo['language'];
$language_interface = $userInfo['language'];
}
}
}
}
// Sometimes the variable $language_interface is changed
// temporarily for achieving translation in different language.
// We need to save the genuine value of this variable and
// to use it within the function get_lang(...).
$language_interface_initial_value = $language_interface;
/**
* Include the trad4all language file.
*/
$languageFilesToLoad = api_get_language_files_to_load($language_interface);
foreach ($languageFilesToLoad as $languageFile) {
include $languageFile;
}
// include the local (contextual) parameters of this course or section
require $includePath.'/local.inc.php';
// The global variable $text_dir has been defined in the language file trad4all.inc.php.
// For determining text direction correspondent to the current language
// we use now information from the internationalization library.
$text_dir = api_get_text_direction();
// ===== "who is logged in?" module section =====
// check and modify the date of user in the track.e.online table
if (!$x = strpos($_SERVER['PHP_SELF'], 'whoisonline.php')) {
if (!empty($_user['user_id'])) {
preventMultipleLogin($_user['user_id']);
LoginCheck($_user['user_id']);
}
}
// ===== end "who is logged in?" module section =====
// Update of the logout_date field in the table track_e_login
// (needed for the calculation of the total connection time)
if (!isset($_SESSION['login_as']) && isset($_user) && isset($_user["user_id"])) {
// if $_SESSION['login_as'] is set, then the user is an admin logged as the user
Tracking::updateUserLastLogin($_user["user_id"]);
}
// Add language_measure_frequency to your main/inc/conf/configuration.php in
// order to generate language variables frequency measurements (you can then
// see them through main/cron/lang/langstats.php)
// The langstat object will then be used in the get_lang() function.
// This block can be removed to speed things up a bit as it should only ever
// be used in development versions.
if (isset($_configuration['language_measure_frequency']) &&
$_configuration['language_measure_frequency'] == 1
) {
require_once api_get_path(SYS_CODE_PATH).'/cron/lang/langstats.class.php';
$langstats = new langstats();
}
//Default quota for the course documents folder
$default_quota = api_get_setting('default_document_quotum');
//Just in case the setting is not correctly set
if (empty($default_quota)) {
$default_quota = 100000000;
}
define('DEFAULT_DOCUMENT_QUOTA', $default_quota);
// Forcing PclZip library to use a custom temporary folder.
define('PCLZIP_TEMPORARY_DIR', api_get_path(SYS_ARCHIVE_PATH));
// Create web/build/main.js
$webBuildPath = api_get_path(SYS_PUBLIC_PATH).'build/';
if (!is_dir($webBuildPath)) {
if (!mkdir($webBuildPath, api_get_permissions_for_new_directories())) {
error_log(
'Error: '.$webBuildPath.' could not be written. Please check permissions.'
);
}
}
// Load template layout/main.js.tpl and save it into web/build/main.js
$file = $webBuildPath.'main.js';
if (!empty($language_interface)) {
$file = $webBuildPath.'main.'.$language_interface.'.js';
}
// if portal is in test mode always generate the file
if (!file_exists($file) || api_get_setting('server_type') === 'test') {
$template = new Template();
$template->assign('quiz_markers_rolls_js', ChamiloApi::getQuizMarkersRollsJS());
$template->assign('is_vrview_enabled', Display::isVrViewEnabled());
// Force use of default to avoid problems
$tpl = 'default/layout/main.js.tpl';
$contents = $template->fetch($tpl);
if (is_writable($webBuildPath)) {
file_put_contents($file, $contents);
} else {
error_log(
'Error: '.$file.' could not be written. Please check permissions. The web server must be able to write there.'
);
}
}