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 $includePath.'/lib/api.lib.php';
  61. //Check the PHP version
  62. api_check_php_version($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 = dirname(__FILE__).'/../../main/inc/lib/';
  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__).'/../../vendor/autoload.php';
  82. // @todo convert this libs in classes
  83. require_once $lib_path.'database.lib.php';
  84. require_once $lib_path.'text.lib.php';
  85. require_once $lib_path.'array.lib.php';
  86. require_once $lib_path.'events.lib.inc.php';
  87. require_once $lib_path.'course.lib.php';
  88. require_once $lib_path.'online.inc.php';
  89. require_once $lib_path.'banner.lib.php';
  90. require_once $lib_path.'fileManage.lib.php';
  91. require_once $lib_path.'fileUpload.lib.php';
  92. require_once $lib_path.'fileDisplay.lib.php';
  93. require_once $lib_path.'mail.lib.inc.php';
  94. require_once api_get_path(SYS_CODE_PATH).'exercice/exercise.lib.php';
  95. require_once $lib_path.'course_category.lib.php';
  96. define('_MPDF_TEMP_PATH', api_get_path(SYS_ARCHIVE_PATH).'mpdf/');
  97. if (!is_dir(_MPDF_TEMP_PATH)) {
  98. mkdir(_MPDF_TEMP_PATH, api_get_permissions_for_new_directories(), true);
  99. }
  100. /* DATABASE CONNECTION */
  101. // @todo: this shouldn't be done here. It should be stored correctly during installation.
  102. if (empty($_configuration['statistics_database']) && $already_installed) {
  103. $_configuration['statistics_database'] = $_configuration['main_database'];
  104. }
  105. global $database_connection;
  106. // Connect to the server database and select the main chamilo database.
  107. // When $_configuration['db_persistent_connection'] is set, it is expected to be a boolean type.
  108. $dbPersistConnection = api_get_configuration_value('db_persistent_connection');
  109. // $_configuration['db_client_flags'] can be set in configuration.php to pass
  110. // flags to the DB connection
  111. $dbFlags = api_get_configuration_value('db_client_flags');
  112. $params = array(
  113. 'server' => $_configuration['db_host'],
  114. 'username' => $_configuration['db_user'],
  115. 'password' => $_configuration['db_password'],
  116. 'persistent' => $dbPersistConnection,
  117. 'client_flags' => $dbFlags,
  118. );
  119. if (!($conn_return = @Database::connect($params))) {
  120. $global_error_code = 3;
  121. // The database server is not available or credentials are invalid.
  122. require $includePath.'/global_error_message.inc.php';
  123. die();
  124. }
  125. if (!$_configuration['db_host']) {
  126. $global_error_code = 4;
  127. // A configuration option about database server is missing.
  128. require $includePath.'/global_error_message.inc.php';
  129. die();
  130. }
  131. /* RETRIEVING ALL THE CHAMILO CONFIG SETTINGS FOR MULTIPLE URLs FEATURE*/
  132. if (!empty($_configuration['multiple_access_urls'])) {
  133. $_configuration['access_url'] = 1;
  134. $access_urls = api_get_access_urls();
  135. $root_rel = api_get_self();
  136. $root_rel = substr($root_rel,1);
  137. $pos = strpos($root_rel,'/');
  138. $root_rel = substr($root_rel,0,$pos);
  139. $protocol = ((!empty($_SERVER['HTTPS']) && strtoupper($_SERVER['HTTPS']) != 'OFF') ? 'https' : 'http').'://';
  140. //urls with subdomains (HTTP_HOST is preferred - see #6764)
  141. $request_url_root = $protocol.$_SERVER['HTTP_HOST'].'/';
  142. if (empty($request_url_root)) {
  143. $request_url_root = $protocol.$_SERVER['SERVER_NAME'].'/';
  144. }
  145. //urls with subdirs
  146. $request_url_sub = $request_url_root.$root_rel.'/';
  147. // You can use subdirs as multi-urls, but in this case none of them can be
  148. // the root dir. The admin portal should be something like https://host/adm/
  149. // At this time, subdirs will still hold a share cookie, so not ideal yet
  150. // see #6510
  151. foreach ($access_urls as $details) {
  152. if ($request_url_sub == $details['url']) {
  153. $_configuration['access_url'] = $details['id'];
  154. break; //found one match with subdir, get out of foreach
  155. }
  156. // Didn't find any? Now try without subdirs
  157. if ($request_url_root == $details['url']) {
  158. $_configuration['access_url'] = $details['id'];
  159. break; //found one match, get out of foreach
  160. }
  161. }
  162. } else {
  163. $_configuration['access_url'] = 1;
  164. }
  165. // The system has not been designed to use special SQL modes that were introduced since MySQL 5.
  166. Database::query("set session sql_mode='';");
  167. if (!Database::select_db($_configuration['main_database'], $database_connection)) {
  168. $global_error_code = 5;
  169. // Connection to the main Chamilo database is impossible, it might be missing or restricted or its configuration option might be incorrect.
  170. require $includePath.'/global_error_message.inc.php';
  171. die();
  172. }
  173. /* Initialization of the default encodings */
  174. // The platform's character set must be retrieved at this early moment.
  175. $sql = "SELECT selected_value FROM settings_current WHERE variable = 'platform_charset';";
  176. $result = Database::query($sql);
  177. while ($row = Database::fetch_array($result)) {
  178. $charset = $row[0];
  179. }
  180. if (empty($charset)) {
  181. $charset = 'UTF-8';
  182. }
  183. // Preserving the value of the global variable $charset.
  184. $charset_initial_value = $charset;
  185. // Initialization of the internationalization library.
  186. api_initialize_internationalization();
  187. // Initialization of the default encoding that will be used by the multibyte string routines in the internationalization library.
  188. api_set_internationalization_default_encoding($charset);
  189. // Initialization of the database encoding to be used.
  190. Database::query("SET SESSION character_set_server='utf8';");
  191. Database::query("SET SESSION collation_server='utf8_general_ci';");
  192. if (api_is_utf8($charset)) {
  193. // See Bug #1802: For UTF-8 systems we prefer to use "SET NAMES 'utf8'" statement in order to avoid a bizarre problem with Chinese language.
  194. Database::query("SET NAMES 'utf8';");
  195. } else {
  196. Database::query("SET CHARACTER SET '" . Database::to_db_encoding($charset) . "';");
  197. }
  198. // Start session after the internationalization library has been initialized.
  199. Chamilo::session()->start($already_installed);
  200. // Remove quotes added by PHP - get_magic_quotes_gpc() is deprecated in PHP 5 see #2970
  201. if (function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc()) {
  202. array_walk_recursive_limited($_GET, 'stripslashes', true);
  203. array_walk_recursive_limited($_POST, 'stripslashes', true);
  204. array_walk_recursive_limited($_COOKIE, 'stripslashes', true);
  205. array_walk_recursive_limited($_REQUEST, 'stripslashes', true);
  206. }
  207. // access_url == 1 is the default chamilo location
  208. if ($_configuration['access_url'] != 1) {
  209. $url_info = api_get_access_url($_configuration['access_url']);
  210. if ($url_info['active'] == 1) {
  211. $settings_by_access = & api_get_settings(null, 'list', $_configuration['access_url'], 1);
  212. foreach ($settings_by_access as & $row) {
  213. if (empty($row['variable'])) {
  214. $row['variable'] = 0;
  215. }
  216. if (empty($row['subkey'])) {
  217. $row['subkey'] = 0;
  218. }
  219. if (empty($row['category'])) {
  220. $row['category'] = 0;
  221. }
  222. $settings_by_access_list[$row['variable']][$row['subkey']][$row['category']] = $row;
  223. }
  224. }
  225. }
  226. $result = & api_get_settings(null, 'list', 1);
  227. foreach ($result as & $row) {
  228. if ($_configuration['access_url'] != 1) {
  229. if ($url_info['active'] == 1) {
  230. $var = empty($row['variable']) ? 0 : $row['variable'];
  231. $subkey = empty($row['subkey']) ? 0 : $row['subkey'];
  232. $category = empty($row['category']) ? 0 : $row['category'];
  233. }
  234. if ($row['access_url_changeable'] == 1 && $url_info['active'] == 1) {
  235. if (isset($settings_by_access_list[$var]) &&
  236. $settings_by_access_list[$var][$subkey][$category]['selected_value'] != '') {
  237. if ($row['subkey'] == null) {
  238. $_setting[$row['variable']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  239. } else {
  240. $_setting[$row['variable']][$row['subkey']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  241. }
  242. } else {
  243. if ($row['subkey'] == null) {
  244. $_setting[$row['variable']] = $row['selected_value'];
  245. } else {
  246. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  247. }
  248. }
  249. } else {
  250. if ($row['subkey'] == null) {
  251. $_setting[$row['variable']] = $row['selected_value'];
  252. } else {
  253. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  254. }
  255. }
  256. } else {
  257. if ($row['subkey'] == null) {
  258. $_setting[$row['variable']] = $row['selected_value'];
  259. } else {
  260. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  261. }
  262. }
  263. }
  264. $result = & api_get_settings('Plugins', 'list', $_configuration['access_url']);
  265. $_plugins = array();
  266. foreach ($result as & $row) {
  267. $key = & $row['variable'];
  268. if (is_string($_setting[$key])) {
  269. $_setting[$key] = array();
  270. }
  271. $_setting[$key][] = $row['selected_value'];
  272. $_plugins[$key][] = $row['selected_value'];
  273. }
  274. // Load allowed tag definitions for kses and/or HTMLPurifier.
  275. require_once $lib_path.'formvalidator/Rule/allowed_tags.inc.php';
  276. // Before we call local.inc.php, let's define a global $this_section variable
  277. // which will then be usable from the banner and header scripts
  278. $this_section = SECTION_GLOBAL;
  279. // include the local (contextual) parameters of this course or section
  280. require $includePath.'/local.inc.php';
  281. //Include Chamilo Mail conf this is added here because the api_get_setting works
  282. //Fixes bug in Chamilo 1.8.7.1 array was not set
  283. $administrator['email'] = isset($administrator['email']) ? $administrator['email'] : 'admin@example.com';
  284. $administrator['name'] = isset($administrator['name']) ? $administrator['name'] : 'Admin';
  285. $mail_conf = api_get_path(CONFIGURATION_PATH).'mail.conf.php';
  286. if (file_exists($mail_conf)) {
  287. require_once $mail_conf;
  288. }
  289. $profileConf = api_get_path(CONFIGURATION_PATH).'profile.conf.php';
  290. if (file_exists($profileConf)) {
  291. require_once $profileConf;
  292. }
  293. if (api_get_setting('server_type') == 'test') {
  294. ini_set('display_errors', '1');
  295. ini_set('log_errors', '1');
  296. error_reporting(-1);
  297. } else {
  298. /*
  299. Server type is not test
  300. - normal error reporting level
  301. - full fake register globals block
  302. */
  303. error_reporting(E_COMPILE_ERROR | E_ERROR | E_CORE_ERROR);
  304. // TODO: These obsolete variables $HTTP_* to be check whether they are actually used.
  305. if (!isset($HTTP_GET_VARS)) { $HTTP_GET_VARS = $_GET; }
  306. if (!isset($HTTP_POST_VARS)) { $HTTP_POST_VARS = $_POST; }
  307. if (!isset($HTTP_POST_FILES)) { $HTTP_POST_FILES = $_FILES; }
  308. if (!isset($HTTP_SESSION_VARS)) { $HTTP_SESSION_VARS = $_SESSION; }
  309. if (!isset($HTTP_SERVER_VARS)) { $HTTP_SERVER_VARS = $_SERVER; }
  310. // Register SESSION variables into $GLOBALS
  311. if (sizeof($HTTP_SESSION_VARS)) {
  312. if (!is_array($_SESSION)) {
  313. $_SESSION = array();
  314. }
  315. foreach ($HTTP_SESSION_VARS as $key => $val) {
  316. $_SESSION[$key] = $HTTP_SESSION_VARS[$key];
  317. $GLOBALS[$key] = $HTTP_SESSION_VARS[$key];
  318. }
  319. }
  320. // Register SERVER variables into $GLOBALS
  321. if (sizeof($HTTP_SERVER_VARS)) {
  322. $_SERVER = array();
  323. foreach ($HTTP_SERVER_VARS as $key => $val) {
  324. $_SERVER[$key] = $HTTP_SERVER_VARS[$key];
  325. if (!isset($_SESSION[$key]) && $key != 'includePath' && $key != 'rootSys' && $key!= 'lang_path' && $key!= 'extAuthSource' && $key!= 'thisAuthSource' && $key!= 'main_configuration_file_path' && $key!= 'phpDigIncCn' && $key!= 'drs') {
  326. $GLOBALS[$key]=$HTTP_SERVER_VARS[$key];
  327. }
  328. }
  329. }
  330. }
  331. /* LOAD LANGUAGE FILES SECTION */
  332. // if we use the javascript version (without go button) we receive a get
  333. // if we use the non-javascript version (with the go button) we receive a post
  334. $user_language = '';
  335. $browser_language = '';
  336. if (!empty($_GET['language'])) {
  337. $user_language = $_GET['language'];
  338. }
  339. if (!empty($_POST['language_list'])) {
  340. $user_language = str_replace('index.php?language=', '', $_POST['language_list']);
  341. }
  342. if (empty($user_language) && !empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) && !isset($_SESSION['_user'])) {
  343. require_once __DIR__.'/../admin/sub_language.class.php';
  344. $l = subLanguageManager::getLanguageFromBrowserPreference($_SERVER['HTTP_ACCEPT_LANGUAGE']);
  345. if (!empty($l)) {
  346. $user_language = $browser_language = $l;
  347. }
  348. }
  349. // Include all files (first english and then current interface language)
  350. $langpath = api_get_path(SYS_LANG_PATH);
  351. /* This will only work if we are in the page to edit a sub_language */
  352. if (isset($this_script) && $this_script == 'sub_language') {
  353. require_once '../admin/sub_language.class.php';
  354. // getting the arrays of files i.e notification, trad4all, etc
  355. $language_files_to_load = SubLanguageManager:: get_lang_folder_files_list(api_get_path(SYS_LANG_PATH).'english', true);
  356. //getting parent info
  357. $parent_language = SubLanguageManager::get_all_information_of_language($_REQUEST['id']);
  358. //getting sub language info
  359. $sub_language = SubLanguageManager::get_all_information_of_language($_REQUEST['sub_language_id']);
  360. $english_language_array = $parent_language_array = $sub_language_array = array();
  361. foreach ($language_files_to_load as $language_file_item) {
  362. $lang_list_pre = array_keys($GLOBALS);
  363. //loading english
  364. $path = $langpath.'english/'.$language_file_item.'.inc.php';
  365. if (file_exists($path)) {
  366. include $path;
  367. }
  368. $lang_list_post = array_keys($GLOBALS);
  369. $lang_list_result = array_diff($lang_list_post, $lang_list_pre);
  370. unset($lang_list_pre);
  371. // english language array
  372. $english_language_array[$language_file_item] = compact($lang_list_result);
  373. //cleaning the variables
  374. foreach ($lang_list_result as $item) {
  375. unset(${$item});
  376. }
  377. $parent_file = $langpath.$parent_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
  378. if (file_exists($parent_file) && is_file($parent_file)) {
  379. include_once $parent_file;
  380. }
  381. // parent language array
  382. $parent_language_array[$language_file_item] = compact($lang_list_result);
  383. //cleaning the variables
  384. foreach($lang_list_result as $item) {
  385. unset(${$item});
  386. }
  387. $sub_file = $langpath.$sub_language['dokeos_folder'].'/'.$language_file_item.'.inc.php';
  388. if (file_exists($sub_file) && is_file($sub_file)) {
  389. include $sub_file;
  390. }
  391. // sub language array
  392. $sub_language_array[$language_file_item] = compact($lang_list_result);
  393. //cleaning the variables
  394. foreach($lang_list_result as $item) {
  395. unset(${$item});
  396. }
  397. }
  398. }
  399. // Checking if we have a valid language. If not we set it to the platform language.
  400. $valid_languages = api_get_languages();
  401. if (!empty($valid_languages)) {
  402. if (!in_array($user_language, $valid_languages['folder'])) {
  403. $user_language = api_get_setting('platformLanguage');
  404. }
  405. $language_priority1 = api_get_setting('languagePriority1');
  406. $language_priority2 = api_get_setting('languagePriority2');
  407. $language_priority3 = api_get_setting('languagePriority3');
  408. $language_priority4 = api_get_setting('languagePriority4');
  409. if (in_array($user_language, $valid_languages['folder']) &&
  410. (isset($_GET['language']) || isset($_POST['language_list']) || !empty($browser_language))
  411. ) {
  412. $user_selected_language = $user_language; // $_GET['language']; or HTTP_ACCEPT_LANGUAGE
  413. $_SESSION['user_language_choice'] = $user_selected_language;
  414. $platformLanguage = $user_selected_language;
  415. }
  416. if (!empty($language_priority4) && api_get_language_from_type($language_priority4) !== false ) {
  417. $language_interface = api_get_language_from_type($language_priority4);
  418. } else {
  419. $language_interface = api_get_setting('platformLanguage');
  420. }
  421. if (!empty($language_priority3) && api_get_language_from_type($language_priority3) !== false ) {
  422. $language_interface = api_get_language_from_type($language_priority3);
  423. } else {
  424. if (isset($_SESSION['user_language_choice'])) {
  425. $language_interface = $_SESSION['user_language_choice'];
  426. }
  427. }
  428. if (!empty($language_priority2) && api_get_language_from_type($language_priority2) !== false ) {
  429. $language_interface = api_get_language_from_type($language_priority2);
  430. } else {
  431. if (isset($_user['language'])) {
  432. $language_interface = $_user['language'];
  433. }
  434. }
  435. if (!empty($language_priority1) && api_get_language_from_type($language_priority1) !== false ) {
  436. $language_interface = api_get_language_from_type($language_priority1);
  437. } else {
  438. if (isset($_course['language'])) {
  439. $language_interface = $_course['language'];
  440. }
  441. }
  442. }
  443. // Sometimes the variable $language_interface is changed
  444. // temporarily for achieving translation in different language.
  445. // We need to save the genuine value of this variable and
  446. // to use it within the function get_lang(...).
  447. $language_interface_initial_value = $language_interface;
  448. /**
  449. * Include all necessary language files
  450. * - trad4all
  451. * - notification
  452. * - custom tool language files
  453. */
  454. $language_files = array();
  455. $language_files[] = 'trad4all';
  456. $language_files[] = 'notification';
  457. $language_files[] = 'accessibility';
  458. if (isset($language_file)) {
  459. if (!is_array($language_file)) {
  460. $language_files[] = $language_file;
  461. } else {
  462. $language_files = array_merge($language_files, $language_file);
  463. }
  464. }
  465. // if a set of language files has been properly defined
  466. if (is_array($language_files)) {
  467. // if the sub-language feature is on
  468. if (api_get_setting('allow_use_sub_language') == 'true') {
  469. require_once api_get_path(SYS_CODE_PATH).'admin/sub_language.class.php';
  470. $parent_path = SubLanguageManager::get_parent_language_path($language_interface);
  471. foreach ($language_files as $index => $language_file) {
  472. // include English
  473. include $langpath.'english/'.$language_file.'.inc.php';
  474. // prepare string for current language and its parent
  475. $lang_file = $langpath.$language_interface.'/'.$language_file.'.inc.php';
  476. $parent_lang_file = $langpath.$parent_path.'/'.$language_file.'.inc.php';
  477. // load the parent language file first
  478. if (file_exists($parent_lang_file)) {
  479. include $parent_lang_file;
  480. }
  481. // overwrite the parent language translations if there is a child
  482. if (file_exists($lang_file)) {
  483. include $lang_file;
  484. }
  485. }
  486. } else {
  487. // if the sub-languages feature is not on, then just load the
  488. // set language interface
  489. foreach ($language_files as $index => $language_file) {
  490. // include English
  491. include $langpath.'english/'.$language_file.'.inc.php';
  492. // prepare string for current language
  493. $langfile = $langpath.$language_interface.'/'.$language_file.'.inc.php';
  494. if (file_exists($langfile)) {
  495. include $langfile;
  496. }
  497. }
  498. }
  499. }
  500. // The global variable $charset has been defined in a language file too (trad4all.inc.php), this is legacy situation.
  501. // So, we have to reassign this variable again in order to keep its value right.
  502. $charset = $charset_initial_value;
  503. // The global variable $text_dir has been defined in the language file trad4all.inc.php.
  504. // For determing text direction correspondent to the current language we use now information from the internationalization library.
  505. $text_dir = api_get_text_direction();
  506. // ===== "who is logged in?" module section =====
  507. // check and modify the date of user in the track.e.online table
  508. if (!$x = strpos($_SERVER['PHP_SELF'], 'whoisonline.php')) {
  509. preventMultipleLogin($_user["user_id"]);
  510. LoginCheck(isset($_user['user_id']) ? $_user['user_id'] : '');
  511. }
  512. // ===== end "who is logged in?" module section =====
  513. //Update of the logout_date field in the table track_e_login (needed for the calculation of the total connection time)
  514. if (!isset($_SESSION['login_as']) && isset($_user)) {
  515. // if $_SESSION['login_as'] is set, then the user is an admin logged as the user
  516. $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  517. $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";
  518. $q_last_connection = Database::query($sql_last_connection);
  519. if (Database::num_rows($q_last_connection) > 0) {
  520. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  521. // is the latest logout_date still relevant?
  522. $sql_logout_date = "SELECT logout_date FROM $tbl_track_login WHERE login_id=$i_id_last_connection";
  523. $q_logout_date = Database::query($sql_logout_date);
  524. $res_logout_date = convert_sql_date(Database::result($q_logout_date,0,'logout_date'));
  525. if ($res_logout_date < time() - $_configuration['session_lifetime']) {
  526. // it isn't, we should create a fresh entry
  527. event_login();
  528. // now that it's created, we can get its ID and carry on
  529. $q_last_connection = Database::query($sql_last_connection);
  530. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  531. }
  532. $now = api_get_utc_datetime(time());
  533. $s_sql_update_logout_date = "UPDATE $tbl_track_login SET logout_date='$now' WHERE login_id='$i_id_last_connection'";
  534. Database::query($s_sql_update_logout_date);
  535. // Saves the last login in the user table see BT#7297
  536. if (isset($_configuration['save_user_last_login']) &&
  537. $_configuration['save_user_last_login']
  538. ) {
  539. $tableUser = Database::get_main_table(TABLE_MAIN_USER);
  540. $sql = "UPDATE $tableUser SET last_login ='$now' WHERE user_id = ".$_user["user_id"];
  541. Database::query($sql);
  542. }
  543. }
  544. }
  545. // Add language_measure_frequency to your main/inc/conf/configuration.php in
  546. // order to generate language variables frequency measurements (you can then
  547. // see them through main/cron/lang/langstats.php)
  548. // The langstat object will then be used in the get_lang() function.
  549. // This block can be removed to speed things up a bit as it should only ever
  550. // be used in development versions.
  551. if (isset($_configuration['language_measure_frequency']) && $_configuration['language_measure_frequency'] == 1) {
  552. require_once api_get_path(SYS_CODE_PATH).'/cron/lang/langstats.class.php';
  553. $langstats = new langstats();
  554. }
  555. //Default quota for the course documents folder
  556. $default_quota = api_get_setting('default_document_quotum');
  557. //Just in case the setting is not correctly set
  558. if (empty($default_quota)) {
  559. $default_quota = 100000000;
  560. }
  561. define('DEFAULT_DOCUMENT_QUOTA', $default_quota);
  562. // Sets the ascii_math plugin see #7134
  563. $_SESSION['ascii_math_loaded'] = false;