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- <?php
- /**
- ==============================================================================
- * It is recommended that ALL dokeos scripts include this important file.
- * This script manages
- * - http get, post, post_files, session, server-vars extraction into global namespace;
- * (which doesn't occur anymore when servertype config setting is set to test,
- * and which will disappear completely in Dokeos 1.6.1)
- * - include of /conf/configuration.php;
- * - include of several libraries: main_api, database, display, text, security;
- * - selecting the main database;
- * - include of language files.
- *
- * @package dokeos.include
- * @todo isn't configuration.php renamed to configuration.inc.php yet?
- * @todo use the $_configuration array for all the needed variables
- * @todo remove the code that displays the button that links to the install page
- * but use a redirect immediately. By doing so the $already_installed variable can be removed.
- * @todo make it possible to enable / disable the tracking through the Dokeos config page.
- *
- ==============================================================================
- */
- // Showing/hiding error codes in global error messages.
- define('SHOW_ERROR_CODES', false);
- // PHP version requirement.
- define('REQUIRED_PHP_VERSION', '5');
- // Determine the directory path where this current file lies.
- // This path will be useful to include the other intialisation files.
- $includePath = dirname(__FILE__);
- // PHP version check.
- if (!function_exists('version_compare') || version_compare(phpversion(), REQUIRED_PHP_VERSION, '<')) {
- $global_error_code = 1;
- // Incorrect PHP version.
- require $includePath.'/global_error_message.inc.php';
- die();
- }
- // @todo Isn't this file renamed to configuration.inc.php yet?
- // Include the main Dokeos platform configuration file.
- $main_configuration_file_path = $includePath.'/conf/configuration.php';
- $already_installed = false;
- if (file_exists($main_configuration_file_path)) {
- require_once $main_configuration_file_path;
- $already_installed = true;
- } else {
- $_configuration = array();
- }
- // Ensure that _configuration is in the global scope before loading
- // main_api.lib.php. This is particularly helpful for unit tests
- if (!isset($GLOBALS['_configuration'])) {
- $GLOBALS['_configuration'] = $_configuration;
- }
- // Include the main Dokeos platform library file.
- require_once $includePath.'/lib/main_api.lib.php';
- // Do not over-use this variable. It is only for this script's local use.
- $lib_path = api_get_path(LIBRARY_PATH);
- // Start session.
- api_session_start($already_installed);
- if (!$already_installed) {
- $global_error_code = 2;
- // The system has not been installed yet.
- require $includePath.'/global_error_message.inc.php';
- die();
- }
- // Fix bug in IIS that doesn't fill the $_SERVER['REQUEST_URI'].
- api_request_uri();
- // Add the path to the pear packages to the include path
- ini_set('include_path', api_create_include_path_setting());
- // This is for compatibility with MAC computers.
- ini_set('auto_detect_line_endings', '1');
- // Include the libraries that are necessary everywhere
- require_once $lib_path.'database.lib.php';
- require_once $lib_path.'display.lib.php';
- require_once $lib_path.'text.lib.php';
- require_once $lib_path.'security.lib.php';
- require_once $lib_path.'events.lib.inc.php';
- // @todo: this shouldn't be done here. It should be stored correctly during installation.
- if (empty($_configuration['statistics_database']) && $already_installed) {
- $_configuration['statistics_database'] = $_configuration['main_database'];
- }
- // Connect to the server database and select the main dokeos database.
- if (!($dokeos_database_connection = @mysql_connect($_configuration['db_host'], $_configuration['db_user'], $_configuration['db_password']))) {
- $global_error_code = 3;
- // The database server is not available or credentials are invalid.
- require $includePath.'/global_error_message.inc.php';
- die();
- }
- if (!$_configuration['db_host']) {
- $global_error_code = 4;
- // A configuration option about database server is missing.
- require $includePath.'/global_error_message.inc.php';
- die();
- }
- // The Dokeos system has not been designed to use special SQL modes that were introduced since MySQL 5.
- Database::query("set session sql_mode='';", __FILE__, __LINE__);
- if (!mysql_select_db($_configuration['main_database'], $dokeos_database_connection)) {
- $global_error_code = 5;
- // Connection to the main Dokeos database is impossible, it might be missing or restricted or its configuration option might be incorrect.
- require $includePath.'/global_error_message.inc.php';
- die();
- }
- /*
- --------------------------------------------
- Initialization of the default encodings
- --------------------------------------------
- */
- // The platform's character set must be retrieved at this early moment.
- $sql = "SELECT selected_value FROM settings_current WHERE variable = 'platform_charset';";
- $result = Database::query($sql, __FILE__, __LINE__);
- while ($row = @Database::fetch_array($result)) {
- $charset = $row[0];
- }
- if (empty($charset)) {
- $charset = 'ISO-8859-15';
- }
- // Preserving the value of the global variable $charset.
- $charset_initial_value = $charset;
- // Initialization of the internationalization library.
- api_initialize_internationalization();
- // Initialization of the default encoding that will be used by the multibyte string routines in the internationalization library.
- api_set_internationalization_default_encoding($charset);
- /*
- --------------------------------------------
- RETRIEVING ALL THE DOKEOS CONFIG SETTINGS
- --------------------------------------------
- */
- if (!empty($_configuration['multiple_access_urls'])) {
- $_configuration['access_url'] = 1;
- $access_urls = api_get_access_urls();
- $protocol = ((!empty($_SERVER['HTTPS']) && strtoupper($_SERVER['HTTPS']) != 'OFF') ? 'https' : 'http').'://';
- $request_url1 = $protocol.$_SERVER['SERVER_NAME'].'/';
- $request_url2 = $protocol.$_SERVER['HTTP_HOST'].'/';
- foreach ($access_urls as $details) {
- if ($request_url1 == $details['url'] or $request_url2 == $details['url']) {
- $_configuration['access_url'] = $details['id'];
- }
- }
- } else {
- $_configuration['access_url'] = 1;
- }
- // access_url == 1 is the default dokeos location
- if ($_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 && $url_info['active'] == 1) {
- if ($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']);
- $_plugins = array();
- foreach ($result as $row) {
- $key = $row['variable'];
- if (is_string($_setting[$key])) {
- $_setting[$key] = array();
- }
- $_setting[$key][] = $row['selected_value'];
- $_plugins[$key][] = $row['selected_value'];
- }
- //load array Kses for Htmlpurifier
- require_once $lib_path.'formvalidator/Rule/allowed_tags.inc.php';
- //load htmpurifier
- require_once $lib_path.'htmlpurifier/library/HTMLPurifier.auto.php';
- // include the local (contextual) parameters of this course or section
- require $includePath.'/local.inc.php';
- // ===== "who is logged in?" module section =====
- require_once $lib_path.'online.inc.php';
- // check and modify the date of user in the track.e.online table
- if (!$x = strpos($_SERVER['PHP_SELF'], 'whoisonline.php')) {
- LoginCheck(isset($_user['user_id']) ? $_user['user_id'] : '', $_configuration['statistics_database']);
- }
- // ===== end "who is logged in?" module section =====
- if (api_get_setting('server_type') == 'test') {
- /*
- --------------------------------------------
- Server type is test
- - high error reporting level
- - only do addslashes on $_GET and $_POST
- --------------------------------------------
- */
- if (IS_PHP_53) {
- error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
- } else {
- error_reporting(E_ALL & ~E_NOTICE);
- }
- //error_reporting(E_ALL);
- //Addslashes to all $_GET variables
- foreach ($_GET as $key => $val) {
- if (!ini_get('magic_quotes_gpc')) {
- if (is_string($val)) {
- $_GET[$key] = addslashes($val);
- }
- }
- }
- //Addslashes to all $_POST variables
- foreach ($_POST as $key => $val) {
- if (!ini_get('magic_quotes_gpc')) {
- if (is_string($val)) {
- $_POST[$key] = addslashes($val);
- }
- }
- }
- } else {
- /*
- --------------------------------------------
- Server type is not test
- - normal error reporting level
- - full fake register globals block
- --------------------------------------------
- */
- error_reporting(E_COMPILE_ERROR | E_ERROR | E_CORE_ERROR);
- // TODO: These obsolete variables $HTTP_* to be check whether they are actually used.
- if (!isset($HTTP_GET_VARS)) { $HTTP_GET_VARS = $_GET; }
- if (!isset($HTTP_POST_VARS)) { $HTTP_POST_VARS = $_POST; }
- if (!isset($HTTP_POST_FILES)) { $HTTP_POST_FILES = $_FILES; }
- if (!isset($HTTP_SESSION_VARS)) { $HTTP_SESSION_VARS = $_SESSION; }
- if (!isset($HTTP_SERVER_VARS)) { $HTTP_SERVER_VARS = $_SERVER; }
- // Register SESSION variables into $GLOBALS
- if (sizeof($HTTP_SESSION_VARS)) {
- if (!is_array($_SESSION)) {
- $_SESSION = array();
- }
- foreach ($HTTP_SESSION_VARS as $key => $val) {
- $_SESSION[$key] = $HTTP_SESSION_VARS[$key];
- $GLOBALS[$key] = $HTTP_SESSION_VARS[$key];
- }
- }
- // Register SERVER variables into $GLOBALS
- if (sizeof($HTTP_SERVER_VARS)) {
- $_SERVER = array();
- foreach ($HTTP_SERVER_VARS as $key => $val) {
- $_SERVER[$key] = $HTTP_SERVER_VARS[$key];
- if (!isset($_SESSION[$key]) && $key != 'includePath' && $key != 'rootSys' && $key!= 'clarolineRepositorySys' && $key!= 'lang_path' && $key!= 'extAuthSource' && $key!= 'thisAuthSource' && $key!= 'main_configuration_file_path' && $key!= 'phpDigIncCn' && $key!= 'drs') {
- $GLOBALS[$key]=$HTTP_SERVER_VARS[$key];
- }
- }
- }
- }
- /*
- -----------------------------------------------------------
- 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
- $user_language = '';
- if (!empty($_GET['language'])) {
- $user_language = $_GET['language'];
- }
- if (!empty($_POST['language_list'])) {
- $user_language = str_replace('index.php?language=', '', $_POST['language_list']);
- }
- // Include all files (first english and then current interface language)
- $langpath = api_get_path(SYS_CODE_PATH).'lang/';
- /* This will only work if we are in the page to edit a sub_language */
- if (api_get_self() == api_get_path(REL_PATH).'main/admin/sub_language.php' || api_get_self() == api_get_path(REL_PATH).'main/admin/sub_language_ajax.inc.php') {
- require_once '../admin/sub_language.class.php';
- // getting the arrays of files i.e notification, trad4all, etc
- $language_files_to_load = SubLanguageManager::get_all_data_of_dokeos_folder(api_get_path(SYS_LANG_PATH).'english', true);
- //getting parent info
- $parent_language = SubLanguageManager::get_all_information_of_language(intval($_REQUEST['id']));
- //getting sub language info
- $sub_language = SubLanguageManager::get_all_information_of_language(intval($_REQUEST['sub_language_id']));
- $english_language_array = $parent_language_array = $sub_language_array = array();
- foreach ($language_files_to_load as $language_file_item) {
- $lang_list_pre = array_keys($GLOBALS);
- include $langpath.'english/'.$language_file_item.'.inc.php'; //loading english
- $lang_list_post = array_keys($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'].'/'.$language_file_item.'.inc.php';
- if (is_file($parent_file)) {
- include $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'].'/'.$language_file_item.'.inc.php';
- if (is_file($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.
- $valid_languages = api_get_languages();
- if (!in_array($user_language, $valid_languages['folder'])) {
- $user_language = api_get_setting('platformLanguage');
- }
- if (in_array($user_language, $valid_languages['folder']) && (isset($_GET['language']) || isset($_POST['language_list']))) {
- $user_selected_language = $user_language; // $_GET['language'];
- $_SESSION['user_language_choice'] = $user_selected_language;
- $platformLanguage = $user_selected_language;
- } else {
- $platformLanguage = api_get_setting('platformLanguage');
- }
- if (isset($_SESSION['user_language_choice'])) {
- $language_interface = $_SESSION['user_language_choice'];
- } else {
- $language_interface = api_get_setting('platformLanguage');
- }
- if (isset($_user['language'])) {
- $language_interface = $_user['language'];
- }
- if ($_course['language']) {
- $language_interface = $_course['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 all necessary language files
- * - trad4all
- * - notification
- * - custom tool language files
- */
- $language_files = array();
- $language_files[] = 'trad4all';
- $language_files[] = 'notification';
- $language_files[] = 'accessibility';
- if (isset($language_file)) {
- if (!is_array($language_file)) {
- $language_files[] = $language_file;
- } else {
- $language_files = array_merge($language_files, $language_file);
- }
- }
- if (is_array($language_files)) {
- if (api_get_setting('allow_use_sub_language') == 'true') {
- foreach ($language_files as $index => $language_file) {
- include $langpath.'english/'.$language_file.'.inc.php';
- $langfile = $langpath.$language_interface.'/'.$language_file.'.inc.php';
- $tbl_admin_languages = Database :: get_main_table(TABLE_MAIN_LANGUAGE);
- $sql_sub_language = 'SELECT dokeos_folder FROM '.$tbl_admin_languages.' WHERE parent_id=(SELECT id FROM '.$tbl_admin_languages.' WHERE dokeos_folder="'.Database::escape_string($language_interface).'" AND ISNULL(parent_id))';
- $rs_sub_language = Database::query($sql_sub_language,__FILE__,__LINE__);
- $num_row_sub_language = Database::num_rows($rs_sub_language);
- if (file_exists($langfile)) {
- include $langfile;
- for ($i = 0; $i < $num_row_sub_language; $i++) {
- $row_sub_language = Database::result($rs_sub_language, $i, 'dokeos_folder');
- $sub_langfile = $langpath.$row_sub_language.'/'.$language_file.'.inc.php';
- if (file_exists($sub_langfile)) {
- include $sub_langfile;
- }
- }
- }
- }
- } else {
- foreach ($language_files as $index => $language_file) {
- include $langpath.'english/'.$language_file.'.inc.php';
- $langfile = $langpath.$language_interface.'/'.$language_file.'.inc.php';
- if (file_exists($langfile)) {
- include $langfile;
- }
- }
- }
- }
- // The global variable $charset has been defined in a language file too (trad4all.inc.php), this is legacy situation.
- // So, we have to reassign this variable again in order to keep its value right.
- $charset = $charset_initial_value;
- //Update of the logout_date field in the table track_e_login (needed for the calculation of the total connection time)
- if ($_configuration['tracking_enabled'] && !isset($_SESSION['login_as']) && isset($_user)) {
- // if $_SESSION['login_as'] is set, then the user is an admin logged as the user
- $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
- $sql_last_connection = "SELECT login_id, login_date FROM $tbl_track_login WHERE login_user_id='".$_user["user_id"]."' ORDER BY login_date DESC LIMIT 0,1";
- $q_last_connection = Database::query($sql_last_connection);
- if (Database::num_rows($q_last_connection) > 0) {
- $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
- $s_sql_update_logout_date = "UPDATE $tbl_track_login SET logout_date=NOW() WHERE login_id='$i_id_last_connection'";
- Database::query($s_sql_update_logout_date);
- }
- }
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