global.inc.php 26 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * It is recommended that ALL Chamilo scripts include this important file.
  5. * This script manages
  6. * - http get, post, post_files, session, server-vars extraction into global namespace;
  7. * (which doesn't occur anymore when servertype config setting is set to test,
  8. * and which will disappear completely in Dokeos 1.6.1)
  9. * - include of /conf/configuration.php;
  10. * - include of several libraries: main_api, database, display, text, security;
  11. * - selecting the main database;
  12. * - include of language files.
  13. *
  14. * @package chamilo.include
  15. * @todo isn't configuration.php renamed to configuration.inc.php yet?
  16. * @todo use the $_configuration array for all the needed variables
  17. * @todo remove the code that displays the button that links to the install page
  18. * but use a redirect immediately. By doing so the $already_installed variable can be removed.
  19. * @todo make it possible to enable / disable the tracking through the Chamilo config page.
  20. *
  21. */
  22. // Showing/hiding error codes in global error messages.
  23. define('SHOW_ERROR_CODES', false);
  24. // Determine the directory path where this current file lies.
  25. // This path will be useful to include the other intialisation files.
  26. $includePath = dirname(__FILE__);
  27. // @todo Isn't this file renamed to configuration.inc.php yet?
  28. // Include the main Chamilo platform configuration file.
  29. $main_configuration_file_path = $includePath.'/conf/configuration.php';
  30. $already_installed = false;
  31. if (file_exists($main_configuration_file_path)) {
  32. require_once $main_configuration_file_path;
  33. $already_installed = true;
  34. } else {
  35. $_configuration = array();
  36. }
  37. //Redirects to the main/install/ page
  38. if (!$already_installed) {
  39. $global_error_code = 2;
  40. // The system has not been installed yet.
  41. require $includePath.'/global_error_message.inc.php';
  42. die();
  43. }
  44. // Ensure that _configuration is in the global scope before loading
  45. // main_api.lib.php. This is particularly helpful for unit tests
  46. if (!isset($GLOBALS['_configuration'])) {
  47. $GLOBALS['_configuration'] = $_configuration;
  48. }
  49. // Code for trnasitional purposes, it can be removed right before the 1.8.7 release.
  50. if (empty($_configuration['system_version'])) {
  51. $_configuration['system_version'] = $_configuration['dokeos_version'];
  52. $_configuration['system_stable'] = $_configuration['dokeos_stable'];
  53. $_configuration['software_url'] = 'http://www.chamilo.org/';
  54. }
  55. // For backward compatibility.
  56. $_configuration['dokeos_version'] = $_configuration['system_version'];
  57. $_configuration['dokeos_stable'] = $_configuration['system_stable'];
  58. $userPasswordCrypted = $_configuration['password_encryption'];
  59. // Include the main Chamilo platform library file.
  60. require_once $includePath.'/lib/main_api.lib.php';
  61. //Check the PHP version
  62. api_check_php_version($includePath.'/');
  63. // Specification for usernames:
  64. // 1. ASCII-letters, digits, "." (dot), "_" (underscore) are acceptable, 40 characters maximum length.
  65. // 2. Empty username is formally valid, but it is reserved for the anonymous user.
  66. // 3. Checking the login_is_email portal setting in order to accept 100 chars maximum
  67. $default_username_length = 40;
  68. if (api_get_setting('login_is_email') == 'true') {
  69. $default_username_length = 100;
  70. }
  71. define('USERNAME_MAX_LENGTH', $default_username_length);
  72. // Do not over-use this variable. It is only for this script's local use.
  73. $lib_path = api_get_path(LIBRARY_PATH);
  74. // Fix bug in IIS that doesn't fill the $_SERVER['REQUEST_URI'].
  75. api_request_uri();
  76. // Add the path to the pear packages to the include path
  77. ini_set('include_path', api_create_include_path_setting());
  78. // This is for compatibility with MAC computers.
  79. ini_set('auto_detect_line_endings', '1');
  80. // Include the libraries that are necessary everywhere
  81. require_once dirname(__FILE__).'/autoload.inc.php';
  82. require_once $lib_path.'database.lib.php';
  83. require_once $lib_path.'text.lib.php';
  84. require_once $lib_path.'array.lib.php';
  85. require_once $lib_path.'events.lib.inc.php';
  86. require_once $lib_path.'model.lib.php';
  87. require_once $lib_path.'course.lib.php';
  88. require_once $lib_path.'online.inc.php';
  89. /* DATABASE CONNECTION */
  90. // @todo: this shouldn't be done here. It should be stored correctly during installation.
  91. if (empty($_configuration['statistics_database']) && $already_installed) {
  92. $_configuration['statistics_database'] = $_configuration['main_database'];
  93. }
  94. global $database_connection;
  95. // Connect to the server database and select the main chamilo database.
  96. if (!($conn_return = @Database::connect(
  97. array(
  98. 'server' => $_configuration['db_host'],
  99. 'username' => $_configuration['db_user'],
  100. 'password' => $_configuration['db_password'],
  101. 'persistent' => $_configuration['db_persistent_connection'] // When $_configuration['db_persistent_connection'] is set, it is expected to be a boolean type.
  102. )))) {
  103. $global_error_code = 3;
  104. // The database server is not available or credentials are invalid.
  105. require $includePath.'/global_error_message.inc.php';
  106. die();
  107. }
  108. if (!$_configuration['db_host']) {
  109. $global_error_code = 4;
  110. // A configuration option about database server is missing.
  111. require $includePath.'/global_error_message.inc.php';
  112. die();
  113. }
  114. /* RETRIEVING ALL THE CHAMILO CONFIG SETTINGS FOR MULTIPLE URLs FEATURE*/
  115. if (!empty($_configuration['multiple_access_urls'])) {
  116. $_configuration['access_url'] = 1;
  117. $access_urls = api_get_access_urls();
  118. $root_rel = api_get_self();
  119. $root_rel = substr($root_rel,1);
  120. $pos = strpos($root_rel,'/');
  121. $root_rel = substr($root_rel,0,$pos);
  122. $protocol = ((!empty($_SERVER['HTTPS']) && strtoupper($_SERVER['HTTPS']) != 'OFF') ? 'https' : 'http').'://';
  123. //urls with subdomains (HTTP_HOST is preferred - see #6764)
  124. $request_url_root = $protocol.$_SERVER['HTTP_HOST'].'/';
  125. if (empty($request_url_root)) {
  126. $request_url_root = $protocol.$_SERVER['SERVER_NAME'].'/';
  127. }
  128. //urls with subdirs
  129. $request_url_sub = $request_url_root.$root_rel.'/';
  130. // You can use subdirs as multi-urls, but in this case none of them can be
  131. // the root dir. The admin portal should be something like https://host/adm/
  132. // At this time, subdirs will still hold a share cookie, so not ideal yet
  133. // see #6510
  134. foreach ($access_urls as $details) {
  135. if ($request_url_sub == $details['url']) {
  136. $_configuration['access_url'] = $details['id'];
  137. break; //found one match with subdir, get out of foreach
  138. }
  139. // Didn't find any? Now try without subdirs
  140. if ($request_url_root == $details['url']) {
  141. $_configuration['access_url'] = $details['id'];
  142. break; //found one match, get out of foreach
  143. }
  144. }
  145. } else {
  146. $_configuration['access_url'] = 1;
  147. }
  148. // The system has not been designed to use special SQL modes that were introduced since MySQL 5.
  149. Database::query("set session sql_mode='';");
  150. if (!Database::select_db($_configuration['main_database'], $database_connection)) {
  151. $global_error_code = 5;
  152. // Connection to the main Chamilo database is impossible, it might be missing or restricted or its configuration option might be incorrect.
  153. require $includePath.'/global_error_message.inc.php';
  154. die();
  155. }
  156. /* Initialization of the default encodings */
  157. // The platform's character set must be retrieved at this early moment.
  158. $sql = "SELECT selected_value FROM settings_current WHERE variable = 'platform_charset';";
  159. $result = Database::query($sql);
  160. while ($row = @Database::fetch_array($result)) {
  161. $charset = $row[0];
  162. }
  163. if (empty($charset)) {
  164. $charset = 'UTF-8';
  165. }
  166. // Preserving the value of the global variable $charset.
  167. $charset_initial_value = $charset;
  168. // Initialization of the internationalization library.
  169. api_initialize_internationalization();
  170. // Initialization of the default encoding that will be used by the multibyte string routines in the internationalization library.
  171. api_set_internationalization_default_encoding($charset);
  172. // Initialization of the database encoding to be used.
  173. Database::query("SET SESSION character_set_server='utf8';");
  174. Database::query("SET SESSION collation_server='utf8_general_ci';");
  175. if (api_is_utf8($charset)) {
  176. // See Bug #1802: For UTF-8 systems we prefer to use "SET NAMES 'utf8'" statement in order to avoid a bizarre problem with Chinese language.
  177. Database::query("SET NAMES 'utf8';");
  178. } else {
  179. Database::query("SET CHARACTER SET '" . Database::to_db_encoding($charset) . "';");
  180. }
  181. // Start session after the internationalization library has been initialized.
  182. Chamilo::session()->start($already_installed);
  183. // Remove quotes added by PHP - get_magic_quotes_gpc() is deprecated in PHP 5 see #2970
  184. if (function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc()) {
  185. array_walk_recursive_limited($_GET, 'stripslashes', true);
  186. array_walk_recursive_limited($_POST, 'stripslashes', true);
  187. array_walk_recursive_limited($_COOKIE, 'stripslashes', true);
  188. array_walk_recursive_limited($_REQUEST, 'stripslashes', true);
  189. }
  190. // access_url == 1 is the default chamilo location
  191. if ($_configuration['access_url'] != 1) {
  192. $url_info = api_get_access_url($_configuration['access_url']);
  193. if ($url_info['active'] == 1) {
  194. $settings_by_access = & api_get_settings(null, 'list', $_configuration['access_url'], 1);
  195. foreach ($settings_by_access as & $row) {
  196. if (empty($row['variable'])) {
  197. $row['variable'] = 0;
  198. }
  199. if (empty($row['subkey'])) {
  200. $row['subkey'] = 0;
  201. }
  202. if (empty($row['category'])) {
  203. $row['category'] = 0;
  204. }
  205. $settings_by_access_list[$row['variable']][$row['subkey']][$row['category']] = $row;
  206. }
  207. }
  208. }
  209. $result = & api_get_settings(null, 'list', 1);
  210. foreach ($result as & $row) {
  211. if ($_configuration['access_url'] != 1) {
  212. if ($url_info['active'] == 1) {
  213. $var = empty($row['variable']) ? 0 : $row['variable'];
  214. $subkey = empty($row['subkey']) ? 0 : $row['subkey'];
  215. $category = empty($row['category']) ? 0 : $row['category'];
  216. }
  217. if ($row['access_url_changeable'] == 1 && $url_info['active'] == 1) {
  218. if (isset($settings_by_access_list[$var]) &&
  219. $settings_by_access_list[$var][$subkey][$category]['selected_value'] != '') {
  220. if ($row['subkey'] == null) {
  221. $_setting[$row['variable']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  222. } else {
  223. $_setting[$row['variable']][$row['subkey']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  224. }
  225. } else {
  226. if ($row['subkey'] == null) {
  227. $_setting[$row['variable']] = $row['selected_value'];
  228. } else {
  229. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  230. }
  231. }
  232. } else {
  233. if ($row['subkey'] == null) {
  234. $_setting[$row['variable']] = $row['selected_value'];
  235. } else {
  236. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  237. }
  238. }
  239. } else {
  240. if ($row['subkey'] == null) {
  241. $_setting[$row['variable']] = $row['selected_value'];
  242. } else {
  243. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  244. }
  245. }
  246. }
  247. $result = & api_get_settings('Plugins', 'list', $_configuration['access_url']);
  248. $_plugins = array();
  249. foreach ($result as & $row) {
  250. $key = & $row['variable'];
  251. if (is_string($_setting[$key])) {
  252. $_setting[$key] = array();
  253. }
  254. $_setting[$key][] = $row['selected_value'];
  255. $_plugins[$key][] = $row['selected_value'];
  256. }
  257. // Load allowed tag definitions for kses and/or HTMLPurifier.
  258. require_once $lib_path.'formvalidator/Rule/allowed_tags.inc.php';
  259. // Load HTMLPurifier.
  260. //require_once $lib_path.'htmlpurifier/library/HTMLPurifier.auto.php'; // It will be loaded later, in a lazy manner.
  261. // Before we call local.inc.php, let's define a global $this_section variable
  262. // which will then be usable from the banner and header scripts
  263. $this_section = SECTION_GLOBAL;
  264. // include the local (contextual) parameters of this course or section
  265. require $includePath.'/local.inc.php';
  266. //Include Chamilo Mail conf this is added here because the api_get_setting works
  267. //Fixes bug in Chamilo 1.8.7.1 array was not set
  268. $administrator['email'] = isset($administrator['email']) ? $administrator['email'] : 'admin@example.com';
  269. $administrator['name'] = isset($administrator['name']) ? $administrator['name'] : 'Admin';
  270. $mail_conf = api_get_path(CONFIGURATION_PATH).'mail.conf.php';
  271. if (file_exists($mail_conf)) {
  272. require_once $mail_conf;
  273. }
  274. // ===== "who is logged in?" module section =====
  275. // check and modify the date of user in the track.e.online table
  276. if (!$x = strpos($_SERVER['PHP_SELF'], 'whoisonline.php')) {
  277. LoginCheck(isset($_user['user_id']) ? $_user['user_id'] : '');
  278. }
  279. // ===== end "who is logged in?" module section =====
  280. if (api_get_setting('server_type') == 'test') {
  281. //error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
  282. ini_set('display_errors', '1');
  283. error_reporting(-1);
  284. } else {
  285. /*
  286. Server type is not test
  287. - normal error reporting level
  288. - full fake register globals block
  289. */
  290. error_reporting(E_COMPILE_ERROR | E_ERROR | E_CORE_ERROR);
  291. // TODO: These obsolete variables $HTTP_* to be check whether they are actually used.
  292. if (!isset($HTTP_GET_VARS)) { $HTTP_GET_VARS = $_GET; }
  293. if (!isset($HTTP_POST_VARS)) { $HTTP_POST_VARS = $_POST; }
  294. if (!isset($HTTP_POST_FILES)) { $HTTP_POST_FILES = $_FILES; }
  295. if (!isset($HTTP_SESSION_VARS)) { $HTTP_SESSION_VARS = $_SESSION; }
  296. if (!isset($HTTP_SERVER_VARS)) { $HTTP_SERVER_VARS = $_SERVER; }
  297. // Register SESSION variables into $GLOBALS
  298. if (sizeof($HTTP_SESSION_VARS)) {
  299. if (!is_array($_SESSION)) {
  300. $_SESSION = array();
  301. }
  302. foreach ($HTTP_SESSION_VARS as $key => $val) {
  303. $_SESSION[$key] = $HTTP_SESSION_VARS[$key];
  304. $GLOBALS[$key] = $HTTP_SESSION_VARS[$key];
  305. }
  306. }
  307. // Register SERVER variables into $GLOBALS
  308. if (sizeof($HTTP_SERVER_VARS)) {
  309. $_SERVER = array();
  310. foreach ($HTTP_SERVER_VARS as $key => $val) {
  311. $_SERVER[$key] = $HTTP_SERVER_VARS[$key];
  312. if (!isset($_SESSION[$key]) && $key != 'includePath' && $key != 'rootSys' && $key!= 'lang_path' && $key!= 'extAuthSource' && $key!= 'thisAuthSource' && $key!= 'main_configuration_file_path' && $key!= 'phpDigIncCn' && $key!= 'drs') {
  313. $GLOBALS[$key]=$HTTP_SERVER_VARS[$key];
  314. }
  315. }
  316. }
  317. }
  318. /* LOAD LANGUAGE FILES SECTION */
  319. // if we use the javascript version (without go button) we receive a get
  320. // if we use the non-javascript version (with the go button) we receive a post
  321. $user_language = '';
  322. $browser_language = '';
  323. if (!empty($_GET['language'])) {
  324. $user_language = $_GET['language'];
  325. }
  326. if (!empty($_POST['language_list'])) {
  327. $user_language = str_replace('index.php?language=', '', $_POST['language_list']);
  328. }
  329. if (empty($user_language) && !empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) && !isset($_SESSION['_user'])) {
  330. require_once __DIR__.'/../admin/sub_language.class.php';
  331. $l = subLanguageManager::getLanguageFromBrowserPreference($_SERVER['HTTP_ACCEPT_LANGUAGE']);
  332. if (!empty($l)) {
  333. $user_language = $browser_language = $l;
  334. }
  335. }
  336. // Include all files (first english and then current interface language)
  337. $langpath = api_get_path(SYS_LANG_PATH);
  338. /* This will only work if we are in the page to edit a sub_language */
  339. if (isset($this_script) && $this_script == 'sub_language') {
  340. require_once '../admin/sub_language.class.php';
  341. // getting the arrays of files i.e notification, trad4all, etc
  342. $language_files_to_load = SubLanguageManager:: get_lang_folder_files_list(api_get_path(SYS_LANG_PATH).'english', true);
  343. //getting parent info
  344. $parent_language = SubLanguageManager::get_all_information_of_language($_REQUEST['id']);
  345. //getting sub language info
  346. $sub_language = SubLanguageManager::get_all_information_of_language($_REQUEST['sub_language_id']);
  347. $english_language_array = $parent_language_array = $sub_language_array = array();
  348. foreach ($language_files_to_load as $language_file_item) {
  349. $lang_list_pre = array_keys($GLOBALS);
  350. //loading english
  351. $path = $langpath.'english/'.$language_file_item.'.inc.php';
  352. if (file_exists($path)) {
  353. include $path;
  354. }
  355. $lang_list_post = array_keys($GLOBALS);
  356. $lang_list_result = array_diff($lang_list_post, $lang_list_pre);
  357. unset($lang_list_pre);
  358. // english language array
  359. $english_language_array[$language_file_item] = compact($lang_list_result);
  360. //cleaning the variables
  361. foreach ($lang_list_result as $item) {
  362. unset(${$item});
  363. }
  364. $parent_file = $langpath.$parent_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
  365. if (file_exists($parent_file) && is_file($parent_file)) {
  366. include_once $parent_file;
  367. }
  368. // parent language array
  369. $parent_language_array[$language_file_item] = compact($lang_list_result);
  370. //cleaning the variables
  371. foreach($lang_list_result as $item) {
  372. unset(${$item});
  373. }
  374. $sub_file = $langpath.$sub_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
  375. if (file_exists($sub_file) && is_file($sub_file)) {
  376. include $sub_file;
  377. }
  378. // sub language array
  379. $sub_language_array[$language_file_item] = compact($lang_list_result);
  380. //cleaning the variables
  381. foreach($lang_list_result as $item) {
  382. unset(${$item});
  383. }
  384. }
  385. }
  386. // Checking if we have a valid language. If not we set it to the platform language.
  387. $valid_languages = api_get_languages();
  388. if (!empty($valid_languages)) {
  389. if (!in_array($user_language, $valid_languages['folder'])) {
  390. $user_language = api_get_setting('platformLanguage');
  391. }
  392. $language_priority1 = api_get_setting('languagePriority1');
  393. $language_priority2 = api_get_setting('languagePriority2');
  394. $language_priority3 = api_get_setting('languagePriority3');
  395. $language_priority4 = api_get_setting('languagePriority4');
  396. if (in_array($user_language, $valid_languages['folder']) && (isset($_GET['language']) || isset($_POST['language_list']) || !empty($browser_language))) {
  397. $user_selected_language = $user_language; // $_GET['language']; or HTTP_ACCEPT_LANGUAGE
  398. $_SESSION['user_language_choice'] = $user_selected_language;
  399. $platformLanguage = $user_selected_language;
  400. }
  401. if (!empty($language_priority4) && api_get_language_from_type($language_priority4) !== false ) {
  402. $language_interface = api_get_language_from_type($language_priority4);
  403. } else {
  404. $language_interface = api_get_setting('platformLanguage');
  405. }
  406. if (!empty($language_priority3) && api_get_language_from_type($language_priority3) !== false ) {
  407. $language_interface = api_get_language_from_type($language_priority3);
  408. } else {
  409. if (isset($_SESSION['user_language_choice'])) {
  410. $language_interface = $_SESSION['user_language_choice'];
  411. }
  412. }
  413. if (!empty($language_priority2) && api_get_language_from_type($language_priority2) !== false ) {
  414. $language_interface = api_get_language_from_type($language_priority2);
  415. } else {
  416. if (isset($_user['language'])) {
  417. $language_interface = $_user['language'];
  418. }
  419. }
  420. if (!empty($language_priority1) && api_get_language_from_type($language_priority1) !== false ) {
  421. $language_interface = api_get_language_from_type($language_priority1);
  422. } else {
  423. if (isset($_course['language'])) {
  424. $language_interface = $_course['language'];
  425. }
  426. }
  427. }
  428. // Sometimes the variable $language_interface is changed
  429. // temporarily for achieving translation in different language.
  430. // We need to save the genuine value of this variable and
  431. // to use it within the function get_lang(...).
  432. $language_interface_initial_value = $language_interface;
  433. /**
  434. * Include all necessary language files
  435. * - trad4all
  436. * - notification
  437. * - custom tool language files
  438. */
  439. $language_files = array();
  440. $language_files[] = 'trad4all';
  441. $language_files[] = 'notification';
  442. $language_files[] = 'accessibility';
  443. if (isset($language_file)) {
  444. if (!is_array($language_file)) {
  445. $language_files[] = $language_file;
  446. } else {
  447. $language_files = array_merge($language_files, $language_file);
  448. }
  449. }
  450. // if a set of language files has been properly defined
  451. if (is_array($language_files)) {
  452. // if the sub-language feature is on
  453. if (api_get_setting('allow_use_sub_language') == 'true') {
  454. require_once api_get_path(SYS_CODE_PATH).'admin/sub_language.class.php';
  455. $parent_path = SubLanguageManager::get_parent_language_path($language_interface);
  456. foreach ($language_files as $index => $language_file) {
  457. // include English
  458. include $langpath.'english/'.$language_file.'.inc.php';
  459. // prepare string for current language and its parent
  460. $lang_file = $langpath.$language_interface.'/'.$language_file.'.inc.php';
  461. $parent_lang_file = $langpath.$parent_path.'/'.$language_file.'.inc.php';
  462. // load the parent language file first
  463. if (file_exists($parent_lang_file)) {
  464. include $parent_lang_file;
  465. }
  466. // overwrite the parent language translations if there is a child
  467. if (file_exists($lang_file)) {
  468. include $lang_file;
  469. }
  470. }
  471. } else {
  472. // if the sub-languages feature is not on, then just load the
  473. // set language interface
  474. foreach ($language_files as $index => $language_file) {
  475. // include English
  476. include $langpath.'english/'.$language_file.'.inc.php';
  477. // prepare string for current language
  478. $langfile = $langpath.$language_interface.'/'.$language_file.'.inc.php';
  479. if (file_exists($langfile)) {
  480. include $langfile;
  481. }
  482. }
  483. }
  484. }
  485. // The global variable $charset has been defined in a language file too (trad4all.inc.php), this is legacy situation.
  486. // So, we have to reassign this variable again in order to keep its value right.
  487. $charset = $charset_initial_value;
  488. // The global variable $text_dir has been defined in the language file trad4all.inc.php.
  489. // For determing text direction correspondent to the current language we use now information from the internationalization library.
  490. $text_dir = api_get_text_direction();
  491. //Update of the logout_date field in the table track_e_login (needed for the calculation of the total connection time)
  492. if (!isset($_SESSION['login_as']) && isset($_user)) {
  493. // if $_SESSION['login_as'] is set, then the user is an admin logged as the user
  494. $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  495. $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";
  496. $q_last_connection = Database::query($sql_last_connection);
  497. if (Database::num_rows($q_last_connection) > 0) {
  498. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  499. // is the latest logout_date still relevant?
  500. $sql_logout_date = "SELECT logout_date FROM $tbl_track_login WHERE login_id=$i_id_last_connection";
  501. $q_logout_date = Database::query($sql_logout_date);
  502. $res_logout_date = convert_sql_date(Database::result($q_logout_date,0,'logout_date'));
  503. if ($res_logout_date < time() - $_configuration['session_lifetime']) {
  504. // it isn't, we should create a fresh entry
  505. event_login();
  506. // now that it's created, we can get its ID and carry on
  507. $q_last_connection = Database::query($sql_last_connection);
  508. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  509. }
  510. $now = api_get_utc_datetime(time());
  511. $s_sql_update_logout_date = "UPDATE $tbl_track_login SET logout_date='$now' WHERE login_id='$i_id_last_connection'";
  512. Database::query($s_sql_update_logout_date);
  513. // Saves the last login in the user table see BT#7297
  514. if (isset($_configuration['save_user_last_login']) &&
  515. $_configuration['save_user_last_login']
  516. ) {
  517. $tableUser = Database::get_main_table(TABLE_MAIN_USER);
  518. $sql = "UPDATE $tableUser SET last_login ='$now' WHERE user_id = ".$_user["user_id"];
  519. Database::query($sql);
  520. }
  521. }
  522. }
  523. // Add language_measure_frequency to your main/inc/conf/configuration.php in
  524. // order to generate language variables frequency measurements (you can then
  525. // see them through main/cron/lang/langstats.php)
  526. // The langstat object will then be used in the get_lang() function.
  527. // This block can be removed to speed things up a bit as it should only ever
  528. // be used in development versions.
  529. if (isset($_configuration['language_measure_frequency']) && $_configuration['language_measure_frequency'] == 1) {
  530. require_once api_get_path(SYS_CODE_PATH).'/cron/lang/langstats.class.php';
  531. $langstats = new langstats();
  532. }
  533. //Default quota for the course documents folder
  534. $default_quota = api_get_setting('default_document_quotum');
  535. //Just in case the setting is not correctly set
  536. if (empty($default_quota)) {
  537. $default_quota = 100000000;
  538. }
  539. define('DEFAULT_DOCUMENT_QUOTA', $default_quota);
  540. // Sets the ascii_math plugin see #7134
  541. $_SESSION['ascii_math_loaded'] = false;