global.inc.php 25 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626
  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 initialisation files.
  26. $includePath = __DIR__;
  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 $includePath.'/lib/api.lib.php';
  61. //Check the PHP version
  62. api_check_php_version($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. // Fix bug in IIS that doesn't fill the $_SERVER['REQUEST_URI'].
  73. api_request_uri();
  74. // Add the path to the pear packages to the include path
  75. ini_set('include_path', api_create_include_path_setting());
  76. // This is for compatibility with MAC computers.
  77. ini_set('auto_detect_line_endings', '1');
  78. // Include the libraries that are necessary everywhere
  79. require_once __DIR__.'/../../vendor/autoload.php';
  80. // Do not over-use this variable. It is only for this script's local use.
  81. $libraryPath = api_get_path(LIBRARY_PATH);
  82. // @todo convert this libs in classes
  83. require_once $libraryPath.'database.lib.php';
  84. require_once $libraryPath.'text.lib.php';
  85. require_once $libraryPath.'array.lib.php';
  86. require_once $libraryPath.'online.inc.php';
  87. require_once $libraryPath.'banner.lib.php';
  88. require_once $libraryPath.'fileManage.lib.php';
  89. require_once $libraryPath.'fileUpload.lib.php';
  90. require_once $libraryPath.'fileDisplay.lib.php';
  91. require_once $libraryPath.'course_category.lib.php';
  92. define('_MPDF_TEMP_PATH', api_get_path(SYS_ARCHIVE_PATH).'mpdf/');
  93. if (!is_dir(_MPDF_TEMP_PATH)) {
  94. mkdir(_MPDF_TEMP_PATH, api_get_permissions_for_new_directories(), true);
  95. }
  96. /* DATABASE CONNECTION */
  97. // @todo: this shouldn't be done here. It should be stored correctly during installation.
  98. if (empty($_configuration['statistics_database']) && $already_installed) {
  99. $_configuration['statistics_database'] = $_configuration['main_database'];
  100. }
  101. global $database_connection;
  102. // Connect to the server database and select the main chamilo database.
  103. // When $_configuration['db_persistent_connection'] is set, it is expected to be a boolean type.
  104. $dbPersistConnection = api_get_configuration_value('db_persistent_connection');
  105. // $_configuration['db_client_flags'] can be set in configuration.php to pass
  106. // flags to the DB connection
  107. $dbFlags = api_get_configuration_value('db_client_flags');
  108. $params = array(
  109. 'server' => $_configuration['db_host'],
  110. 'username' => $_configuration['db_user'],
  111. 'password' => $_configuration['db_password'],
  112. 'persistent' => $dbPersistConnection,
  113. 'client_flags' => $dbFlags,
  114. );
  115. if (!($conn_return = @Database::connect($params))) {
  116. $global_error_code = 3;
  117. // The database server is not available or credentials are invalid.
  118. require $includePath.'/global_error_message.inc.php';
  119. die();
  120. }
  121. if (!$_configuration['db_host']) {
  122. $global_error_code = 4;
  123. // A configuration option about database server is missing.
  124. require $includePath.'/global_error_message.inc.php';
  125. die();
  126. }
  127. /* RETRIEVING ALL THE CHAMILO CONFIG SETTINGS FOR MULTIPLE URLs FEATURE*/
  128. if (!empty($_configuration['multiple_access_urls'])) {
  129. $_configuration['access_url'] = 1;
  130. $access_urls = api_get_access_urls();
  131. $root_rel = api_get_self();
  132. $root_rel = substr($root_rel,1);
  133. $pos = strpos($root_rel,'/');
  134. $root_rel = substr($root_rel,0,$pos);
  135. $protocol = ((!empty($_SERVER['HTTPS']) && strtoupper($_SERVER['HTTPS']) != 'OFF') ? 'https' : 'http').'://';
  136. //urls with subdomains (HTTP_HOST is preferred - see #6764)
  137. $request_url_root = $protocol.$_SERVER['HTTP_HOST'].'/';
  138. if (empty($request_url_root)) {
  139. $request_url_root = $protocol.$_SERVER['SERVER_NAME'].'/';
  140. }
  141. //urls with subdirs
  142. $request_url_sub = $request_url_root.$root_rel.'/';
  143. // You can use subdirs as multi-urls, but in this case none of them can be
  144. // the root dir. The admin portal should be something like https://host/adm/
  145. // At this time, subdirs will still hold a share cookie, so not ideal yet
  146. // see #6510
  147. foreach ($access_urls as $details) {
  148. if ($request_url_sub == $details['url']) {
  149. $_configuration['access_url'] = $details['id'];
  150. break; //found one match with subdir, get out of foreach
  151. }
  152. // Didn't find any? Now try without subdirs
  153. if ($request_url_root == $details['url']) {
  154. $_configuration['access_url'] = $details['id'];
  155. break; //found one match, get out of foreach
  156. }
  157. }
  158. } else {
  159. $_configuration['access_url'] = 1;
  160. }
  161. // The system has not been designed to use special SQL modes that were introduced since MySQL 5.
  162. Database::query("set session sql_mode='';");
  163. if (!Database::select_db($_configuration['main_database'], $database_connection)) {
  164. $global_error_code = 5;
  165. // Connection to the main Chamilo database is impossible, it might be missing or restricted or its configuration option might be incorrect.
  166. require $includePath.'/global_error_message.inc.php';
  167. die();
  168. }
  169. /* Initialization of the default encodings */
  170. // The platform's character set must be retrieved at this early moment.
  171. $sql = "SELECT selected_value FROM settings_current WHERE variable = 'platform_charset';";
  172. $result = Database::query($sql);
  173. while ($row = Database::fetch_array($result)) {
  174. $charset = $row[0];
  175. }
  176. if (empty($charset)) {
  177. $charset = 'UTF-8';
  178. }
  179. // Preserving the value of the global variable $charset.
  180. $charset_initial_value = $charset;
  181. // Initialization of the internationalization library.
  182. api_initialize_internationalization();
  183. // Initialization of the default encoding that will be used by the multibyte string routines in the internationalization library.
  184. api_set_internationalization_default_encoding($charset);
  185. // Initialization of the database encoding to be used.
  186. Database::query("SET SESSION character_set_server='utf8';");
  187. Database::query("SET SESSION collation_server='utf8_general_ci';");
  188. if (api_is_utf8($charset)) {
  189. // See Bug #1802: For UTF-8 systems we prefer to use "SET NAMES 'utf8'" statement in order to avoid a bizarre problem with Chinese language.
  190. Database::query("SET NAMES 'utf8';");
  191. } else {
  192. Database::query("SET CHARACTER SET '" . Database::to_db_encoding($charset) . "';");
  193. }
  194. // Start session after the internationalization library has been initialized.
  195. Chamilo::session()->start($already_installed);
  196. // Remove quotes added by PHP - get_magic_quotes_gpc() is deprecated in PHP 5 see #2970
  197. if (function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc()) {
  198. array_walk_recursive_limited($_GET, 'stripslashes', true);
  199. array_walk_recursive_limited($_POST, 'stripslashes', true);
  200. array_walk_recursive_limited($_COOKIE, 'stripslashes', true);
  201. array_walk_recursive_limited($_REQUEST, 'stripslashes', true);
  202. }
  203. // access_url == 1 is the default chamilo location
  204. if ($_configuration['access_url'] != 1) {
  205. $url_info = api_get_access_url($_configuration['access_url']);
  206. if ($url_info['active'] == 1) {
  207. $settings_by_access = & api_get_settings(null, 'list', $_configuration['access_url'], 1);
  208. foreach ($settings_by_access as & $row) {
  209. if (empty($row['variable'])) {
  210. $row['variable'] = 0;
  211. }
  212. if (empty($row['subkey'])) {
  213. $row['subkey'] = 0;
  214. }
  215. if (empty($row['category'])) {
  216. $row['category'] = 0;
  217. }
  218. $settings_by_access_list[$row['variable']][$row['subkey']][$row['category']] = $row;
  219. }
  220. }
  221. }
  222. $result = & api_get_settings(null, 'list', 1);
  223. foreach ($result as & $row) {
  224. if ($_configuration['access_url'] != 1) {
  225. if ($url_info['active'] == 1) {
  226. $var = empty($row['variable']) ? 0 : $row['variable'];
  227. $subkey = empty($row['subkey']) ? 0 : $row['subkey'];
  228. $category = empty($row['category']) ? 0 : $row['category'];
  229. }
  230. if ($row['access_url_changeable'] == 1 && $url_info['active'] == 1) {
  231. if (isset($settings_by_access_list[$var]) &&
  232. $settings_by_access_list[$var][$subkey][$category]['selected_value'] != '') {
  233. if ($row['subkey'] == null) {
  234. $_setting[$row['variable']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  235. } else {
  236. $_setting[$row['variable']][$row['subkey']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  237. }
  238. } else {
  239. if ($row['subkey'] == null) {
  240. $_setting[$row['variable']] = $row['selected_value'];
  241. } else {
  242. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  243. }
  244. }
  245. } else {
  246. if ($row['subkey'] == null) {
  247. $_setting[$row['variable']] = $row['selected_value'];
  248. } else {
  249. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  250. }
  251. }
  252. } else {
  253. if ($row['subkey'] == null) {
  254. $_setting[$row['variable']] = $row['selected_value'];
  255. } else {
  256. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  257. }
  258. }
  259. }
  260. $result = & api_get_settings('Plugins', 'list', $_configuration['access_url']);
  261. $_plugins = array();
  262. foreach ($result as & $row) {
  263. $key = & $row['variable'];
  264. if (is_string($_setting[$key])) {
  265. $_setting[$key] = array();
  266. }
  267. $_setting[$key][] = $row['selected_value'];
  268. $_plugins[$key][] = $row['selected_value'];
  269. }
  270. // Load allowed tag definitions for kses and/or HTMLPurifier.
  271. require_once $libraryPath.'formvalidator/Rule/allowed_tags.inc.php';
  272. // Before we call local.inc.php, let's define a global $this_section variable
  273. // which will then be usable from the banner and header scripts
  274. $this_section = SECTION_GLOBAL;
  275. // include the local (contextual) parameters of this course or section
  276. require $includePath.'/local.inc.php';
  277. //Include Chamilo Mail conf this is added here because the api_get_setting works
  278. //Fixes bug in Chamilo 1.8.7.1 array was not set
  279. $administrator['email'] = isset($administrator['email']) ? $administrator['email'] : 'admin@example.com';
  280. $administrator['name'] = isset($administrator['name']) ? $administrator['name'] : 'Admin';
  281. // Including configuration files
  282. $configurationFiles = array(
  283. 'mail.conf.php',
  284. 'profile.conf.php',
  285. 'course_info.conf.php',
  286. 'add_course.conf.php',
  287. 'events.conf.php',
  288. 'auth.conf.php',
  289. 'portfolio.conf.php'
  290. );
  291. foreach ($configurationFiles as $file) {
  292. $file = api_get_path(CONFIGURATION_PATH).$file;
  293. if (file_exists($file)) {
  294. require_once $file;
  295. }
  296. }
  297. if (api_get_setting('server_type') == 'test') {
  298. ini_set('display_errors', '1');
  299. ini_set('log_errors', '1');
  300. error_reporting(-1);
  301. } else {
  302. error_reporting(E_COMPILE_ERROR | E_ERROR | E_CORE_ERROR);
  303. }
  304. /* LOAD LANGUAGE FILES SECTION */
  305. // if we use the javascript version (without go button) we receive a get
  306. // if we use the non-javascript version (with the go button) we receive a post
  307. $user_language = '';
  308. $browser_language = '';
  309. if (!empty($_GET['language'])) {
  310. $user_language = $_GET['language'];
  311. }
  312. if (!empty($_POST['language_list'])) {
  313. $user_language = str_replace('index.php?language=', '', $_POST['language_list']);
  314. }
  315. if (empty($user_language) && !empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) && !isset($_SESSION['_user'])) {
  316. require_once __DIR__.'/../admin/sub_language.class.php';
  317. $l = subLanguageManager::getLanguageFromBrowserPreference($_SERVER['HTTP_ACCEPT_LANGUAGE']);
  318. if (!empty($l)) {
  319. $user_language = $browser_language = $l;
  320. }
  321. }
  322. // Include all files (first english and then current interface language)
  323. $langpath = api_get_path(SYS_LANG_PATH);
  324. /* This will only work if we are in the page to edit a sub_language */
  325. if (isset($this_script) && $this_script == 'sub_language') {
  326. require_once '../admin/sub_language.class.php';
  327. // getting the arrays of files i.e notification, trad4all, etc
  328. $language_files_to_load = SubLanguageManager:: get_lang_folder_files_list(api_get_path(SYS_LANG_PATH).'english', true);
  329. //getting parent info
  330. $parent_language = SubLanguageManager::get_all_information_of_language($_REQUEST['id']);
  331. //getting sub language info
  332. $sub_language = SubLanguageManager::get_all_information_of_language($_REQUEST['sub_language_id']);
  333. $english_language_array = $parent_language_array = $sub_language_array = array();
  334. foreach ($language_files_to_load as $language_file_item) {
  335. $lang_list_pre = array_keys($GLOBALS);
  336. //loading english
  337. $path = $langpath.'english/'.$language_file_item.'.inc.php';
  338. if (file_exists($path)) {
  339. include $path;
  340. }
  341. $lang_list_post = array_keys($GLOBALS);
  342. $lang_list_result = array_diff($lang_list_post, $lang_list_pre);
  343. unset($lang_list_pre);
  344. // english language array
  345. $english_language_array[$language_file_item] = compact($lang_list_result);
  346. //cleaning the variables
  347. foreach ($lang_list_result as $item) {
  348. unset(${$item});
  349. }
  350. $parent_file = $langpath.$parent_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
  351. if (file_exists($parent_file) && is_file($parent_file)) {
  352. include_once $parent_file;
  353. }
  354. // parent language array
  355. $parent_language_array[$language_file_item] = compact($lang_list_result);
  356. //cleaning the variables
  357. foreach($lang_list_result as $item) {
  358. unset(${$item});
  359. }
  360. $sub_file = $langpath.$sub_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
  361. if (file_exists($sub_file) && is_file($sub_file)) {
  362. include $sub_file;
  363. }
  364. // sub language array
  365. $sub_language_array[$language_file_item] = compact($lang_list_result);
  366. //cleaning the variables
  367. foreach($lang_list_result as $item) {
  368. unset(${$item});
  369. }
  370. }
  371. }
  372. // Checking if we have a valid language. If not we set it to the platform language.
  373. $valid_languages = api_get_languages();
  374. if (!empty($valid_languages)) {
  375. if (!in_array($user_language, $valid_languages['folder'])) {
  376. $user_language = api_get_setting('platformLanguage');
  377. }
  378. $language_priority1 = api_get_setting('languagePriority1');
  379. $language_priority2 = api_get_setting('languagePriority2');
  380. $language_priority3 = api_get_setting('languagePriority3');
  381. $language_priority4 = api_get_setting('languagePriority4');
  382. if (in_array($user_language, $valid_languages['folder']) &&
  383. (isset($_GET['language']) || isset($_POST['language_list']) || !empty($browser_language))
  384. ) {
  385. $user_selected_language = $user_language; // $_GET['language']; or HTTP_ACCEPT_LANGUAGE
  386. $_SESSION['user_language_choice'] = $user_selected_language;
  387. $platformLanguage = $user_selected_language;
  388. }
  389. if (!empty($language_priority4) && api_get_language_from_type($language_priority4) !== false ) {
  390. $language_interface = api_get_language_from_type($language_priority4);
  391. } else {
  392. $language_interface = api_get_setting('platformLanguage');
  393. }
  394. if (!empty($language_priority3) && api_get_language_from_type($language_priority3) !== false ) {
  395. $language_interface = api_get_language_from_type($language_priority3);
  396. } else {
  397. if (isset($_SESSION['user_language_choice'])) {
  398. $language_interface = $_SESSION['user_language_choice'];
  399. }
  400. }
  401. if (!empty($language_priority2) && api_get_language_from_type($language_priority2) !== false ) {
  402. $language_interface = api_get_language_from_type($language_priority2);
  403. } else {
  404. if (isset($_user['language'])) {
  405. $language_interface = $_user['language'];
  406. }
  407. }
  408. if (!empty($language_priority1) && api_get_language_from_type($language_priority1) !== false ) {
  409. $language_interface = api_get_language_from_type($language_priority1);
  410. } else {
  411. if (isset($_course['language'])) {
  412. $language_interface = $_course['language'];
  413. }
  414. }
  415. }
  416. // Sometimes the variable $language_interface is changed
  417. // temporarily for achieving translation in different language.
  418. // We need to save the genuine value of this variable and
  419. // to use it within the function get_lang(...).
  420. $language_interface_initial_value = $language_interface;
  421. /**
  422. * Include all necessary language files
  423. * - trad4all
  424. * - notification
  425. * - custom tool language files
  426. */
  427. $language_files = array();
  428. $language_files[] = 'trad4all';
  429. $language_files[] = 'notification';
  430. $language_files[] = 'accessibility';
  431. if (isset($language_file)) {
  432. if (!is_array($language_file)) {
  433. $language_files[] = $language_file;
  434. } else {
  435. $language_files = array_merge($language_files, $language_file);
  436. }
  437. }
  438. // if a set of language files has been properly defined
  439. if (is_array($language_files)) {
  440. // if the sub-language feature is on
  441. if (api_get_setting('allow_use_sub_language') == 'true') {
  442. require_once api_get_path(SYS_CODE_PATH).'admin/sub_language.class.php';
  443. $parent_path = SubLanguageManager::get_parent_language_path($language_interface);
  444. foreach ($language_files as $index => $language_file) {
  445. // include English
  446. include $langpath.'english/'.$language_file.'.inc.php';
  447. // prepare string for current language and its parent
  448. $lang_file = $langpath.$language_interface.'/'.$language_file.'.inc.php';
  449. $parent_lang_file = $langpath.$parent_path.'/'.$language_file.'.inc.php';
  450. // load the parent language file first
  451. if (file_exists($parent_lang_file)) {
  452. include $parent_lang_file;
  453. }
  454. // overwrite the parent language translations if there is a child
  455. if (file_exists($lang_file)) {
  456. include $lang_file;
  457. }
  458. }
  459. } else {
  460. // if the sub-languages feature is not on, then just load the
  461. // set language interface
  462. foreach ($language_files as $index => $language_file) {
  463. // include English
  464. include $langpath.'english/'.$language_file.'.inc.php';
  465. // prepare string for current language
  466. $langfile = $langpath.$language_interface.'/'.$language_file.'.inc.php';
  467. if (file_exists($langfile)) {
  468. include $langfile;
  469. }
  470. }
  471. }
  472. }
  473. // The global variable $charset has been defined in a language file too (trad4all.inc.php), this is legacy situation.
  474. // So, we have to reassign this variable again in order to keep its value right.
  475. $charset = $charset_initial_value;
  476. // The global variable $text_dir has been defined in the language file trad4all.inc.php.
  477. // For determing text direction correspondent to the current language we use now information from the internationalization library.
  478. $text_dir = api_get_text_direction();
  479. // ===== "who is logged in?" module section =====
  480. // check and modify the date of user in the track.e.online table
  481. if (!$x = strpos($_SERVER['PHP_SELF'], 'whoisonline.php')) {
  482. preventMultipleLogin($_user["user_id"]);
  483. LoginCheck(isset($_user['user_id']) ? $_user['user_id'] : '');
  484. }
  485. // ===== end "who is logged in?" module section =====
  486. //Update of the logout_date field in the table track_e_login (needed for the calculation of the total connection time)
  487. if (!isset($_SESSION['login_as']) && isset($_user)) {
  488. // if $_SESSION['login_as'] is set, then the user is an admin logged as the user
  489. $tbl_track_login = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  490. $sql_last_connection = "SELECT login_id, login_date FROM $tbl_track_login
  491. WHERE login_user_id='".$_user["user_id"]."' ORDER BY login_date DESC LIMIT 0,1";
  492. $q_last_connection = Database::query($sql_last_connection);
  493. if (Database::num_rows($q_last_connection) > 0) {
  494. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  495. // is the latest logout_date still relevant?
  496. $sql_logout_date = "SELECT logout_date FROM $tbl_track_login WHERE login_id=$i_id_last_connection";
  497. $q_logout_date = Database::query($sql_logout_date);
  498. $res_logout_date = convert_sql_date(Database::result($q_logout_date,0,'logout_date'));
  499. if ($res_logout_date < time() - $_configuration['session_lifetime']) {
  500. // it isn't, we should create a fresh entry
  501. Event::event_login();
  502. // now that it's created, we can get its ID and carry on
  503. $q_last_connection = Database::query($sql_last_connection);
  504. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  505. }
  506. $now = api_get_utc_datetime(time());
  507. $s_sql_update_logout_date = "UPDATE $tbl_track_login SET logout_date='$now' WHERE login_id='$i_id_last_connection'";
  508. Database::query($s_sql_update_logout_date);
  509. // Saves the last login in the user table see BT#7297
  510. if (isset($_configuration['save_user_last_login']) &&
  511. $_configuration['save_user_last_login']
  512. ) {
  513. $tableUser = Database::get_main_table(TABLE_MAIN_USER);
  514. $sql = "UPDATE $tableUser SET last_login ='$now' WHERE user_id = ".$_user["user_id"];
  515. Database::query($sql);
  516. }
  517. }
  518. }
  519. // Add language_measure_frequency to your main/inc/conf/configuration.php in
  520. // order to generate language variables frequency measurements (you can then
  521. // see them through main/cron/lang/langstats.php)
  522. // The langstat object will then be used in the get_lang() function.
  523. // This block can be removed to speed things up a bit as it should only ever
  524. // be used in development versions.
  525. if (isset($_configuration['language_measure_frequency']) && $_configuration['language_measure_frequency'] == 1) {
  526. require_once api_get_path(SYS_CODE_PATH).'/cron/lang/langstats.class.php';
  527. $langstats = new langstats();
  528. }
  529. //Default quota for the course documents folder
  530. $default_quota = api_get_setting('default_document_quotum');
  531. //Just in case the setting is not correctly set
  532. if (empty($default_quota)) {
  533. $default_quota = 100000000;
  534. }
  535. define('DEFAULT_DOCUMENT_QUOTA', $default_quota);
  536. // Sets the ascii_math plugin see #7134
  537. $_SESSION['ascii_math_loaded'] = false;