global.inc.php 15 KB

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  1. <?php
  2. /**
  3. ==============================================================================
  4. * It is recommended that ALL dokeos 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 dokeos.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 Dokeos config page.
  20. *
  21. ==============================================================================
  22. */
  23. // Determine the directory path where this current file lies
  24. // This path will be useful to include the other intialisation files
  25. $includePath = dirname(__FILE__);
  26. // @todo isn't this file renamed to configuration.inc.php yet?
  27. // include the main Dokeos platform configuration file
  28. $main_configuration_file_path = $includePath . "/conf/configuration.php";
  29. $already_installed = false;
  30. if(file_exists($main_configuration_file_path))
  31. {
  32. require_once($main_configuration_file_path);
  33. $already_installed = true;
  34. }
  35. else
  36. {
  37. $_configuration = array();
  38. }
  39. // include the main Dokeos platform library file
  40. require_once($includePath.'/lib/main_api.lib.php');
  41. //fix bug in IIS that doesn't fill the $_SERVER['REQUEST_URI']
  42. api_request_uri();
  43. // Start session
  44. api_session_start($already_installed);
  45. $error_message_not_installed = <<<EOM
  46. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  47. <html>
  48. <head>
  49. <title>Dokeos not installed!</title>
  50. <style type="text/css" media="screen, projection">
  51. /*<![CDATA[*/
  52. @import "main/css/public_admin/default.css";
  53. /*]]>*/
  54. </style>
  55. </head>
  56. <body>
  57. <div id="header">
  58. <div id="header1"><a href="http://www.dokeos.com">Dokeos Homepage</a></div>
  59. <div class="clear"></div>
  60. <div id="header2">&nbsp;</div>
  61. <div id="header3">&nbsp;</div>
  62. </div>
  63. <div style="text-align: center;"><br /><br />
  64. <form action="main/install/index.php" method="get"><input type="submit" value="&nbsp;&nbsp; Click to INSTALL DOKEOS &nbsp;&nbsp;" /></form><br />
  65. or <a href="documentation/installation_guide.html" target="_blank">read the installation guide</a><br /><br />
  66. </div>
  67. <div id="footer">
  68. <div class="copyright">Platform <a href="http://www.dokeos.com"> Dokeos </a> &copy; 2008 </div>
  69. &nbsp;
  70. </div>
  71. </body>
  72. </html>
  73. EOM;
  74. $error_message_db_problem = <<<EOM
  75. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  76. <html>
  77. <head>
  78. <title>Dokeos database unavailable!</title>
  79. <style type="text/css" media="screen, projection">
  80. /*<![CDATA[*/
  81. @import "main/css/public_admin/default.css";
  82. /*]]>*/
  83. </style>
  84. </head>
  85. <body>
  86. <div id="header">
  87. <div id="header1"><a href="http://www.dokeos.com">Dokeos Homepage</a></div>
  88. <div class="clear"></div>
  89. <div id="header2">&nbsp;</div>
  90. <div id="header3">&nbsp;</div>
  91. </div>
  92. EOM;
  93. $error_message_db_problem .= '
  94. <div style="text-align: center; font-size: large; margin-bottom: 2em;"><br /><br />
  95. This portal is currently experiencing database issues. Please report this to the portal administrator. Thank you for your help.</a>
  96. </div>
  97. <div id="footer">
  98. <div class="copyright">Platform <a href="http://www.dokeos.com"> Dokeos </a> &copy; 2008 </div>
  99. &nbsp;
  100. </div>
  101. </body>
  102. </html>';
  103. if (!$already_installed)
  104. {
  105. //require('installedVersion.inc.php');
  106. die($error_message_not_installed);
  107. }
  108. //Assigning a variable to avoid several useless calls to the database setting.
  109. // Do not over-user. This is only for this script's local use.
  110. $lib_path = api_get_path(LIBRARY_PATH);
  111. // Add the path to the pear packages to the include path
  112. //ini_set('include_path',ini_get('include_path').PATH_SEPARATOR.$lib_path.'pear');
  113. ini_set('include_path', api_create_include_path_setting());
  114. // Include the libraries that are necessary everywhere
  115. require_once($lib_path.'database.lib.php');
  116. require_once($lib_path.'display.lib.php');
  117. require_once($lib_path.'text.lib.php');
  118. require_once($lib_path.'security.lib.php');
  119. // @todo: this shouldn't be done here. It should be stored correctly during installation
  120. if(empty($_configuration['statistics_database']) && $already_installed)
  121. {
  122. $_configuration['statistics_database'] = $_configuration['main_database'];
  123. }
  124. // connect to the server database and select the main dokeos database
  125. $dokeos_database_connection = @mysql_connect($_configuration['db_host'], $_configuration['db_user'], $_configuration['db_password']) or die ($error_message_db_problem);
  126. if (! $_configuration['db_host'])
  127. {
  128. die($error_message_db_problem);
  129. }
  130. unset($error_message_db_problem);
  131. unset($error_message_not_installed);
  132. // The Dokeos system has not been designed to use special SQL modes that were introduced since MySQL 5
  133. api_sql_query("set session sql_mode='';", __FILE__, __LINE__);
  134. $selectResult = mysql_select_db($_configuration['main_database'],$dokeos_database_connection) or die ('<center>WARNING ! SYSTEM UNABLE TO SELECT THE MAIN DOKEOS DATABASE</center>');
  135. /*
  136. --------------------------------------------
  137. RETRIEVING ALL THE DOKEOS CONFIG SETTINGS
  138. --------------------------------------------
  139. */
  140. if(!empty($_configuration['multiple_access_urls']))
  141. {
  142. $_configuration['access_url'] = 1;
  143. $access_urls = api_get_access_urls();
  144. $protocol = ((!empty($_SERVER['HTTPS']) && strtoupper($_SERVER['HTTPS'])!='OFF')?'https':'http').'://';
  145. $request_url1 = $protocol.$_SERVER['SERVER_NAME'].'/';
  146. $request_url2 = $protocol.$_SERVER['HTTP_HOST'].'/';
  147. foreach($access_urls as $details)
  148. {
  149. if($request_url1 == $details['url'] or $request_url2 == $details['url'])
  150. {
  151. $_configuration['access_url'] = $details['id'];
  152. }
  153. }
  154. }
  155. else
  156. {
  157. $_configuration['access_url'] = 1;
  158. }
  159. //$sql="SELECT * FROM settings_current";
  160. //$result=mysql_query($sql) or die(mysql_error());
  161. // access_url == 1 is the default dokeos location
  162. if ($_configuration['access_url']!=1)
  163. {
  164. $url_info = api_get_access_url($_configuration['access_url']);
  165. if ($url_info['active']==1)
  166. {
  167. $settings_by_access = api_get_settings(null,'list',$_configuration['access_url'],1);
  168. foreach($settings_by_access as $row)
  169. {
  170. if (empty($row['variable']))
  171. $row['variable']=0;
  172. if (empty($row['subkey']))
  173. $row['subkey']=0;
  174. if (empty($row['category']))
  175. $row['category']=0;
  176. $settings_by_access_list[ $row['variable'] ] [ $row['subkey'] ] [ $row['category'] ] = $row;
  177. }
  178. }
  179. }
  180. //echo '<pre>';print_r($result_other_site);
  181. $result = api_get_settings(null,'list',1);
  182. //while ($row=mysql_fetch_array($result))
  183. foreach($result as $row)
  184. {
  185. if ($_configuration['access_url']!=1)
  186. {
  187. if ($url_info['active']==1)
  188. {
  189. if (empty($row['variable']))
  190. $var=0;
  191. else
  192. $var=$row['variable'];
  193. if (empty($row['subkey']))
  194. $subkey=0;
  195. else
  196. $subkey=$row['subkey'];
  197. if (empty($row['category']))
  198. $category=0;
  199. else
  200. $category=$row['category'];
  201. }
  202. if ($row['access_url_changeable']==1 && $url_info['active']==1)
  203. {
  204. if ($settings_by_access_list[ $var ] [ $subkey ] [$category ]['selected_value'] !='')
  205. {
  206. if ($row['subkey']==NULL)
  207. {
  208. $_setting[$row['variable']]= $settings_by_access_list[ $var ] [ $subkey ] [$category ]['selected_value'];
  209. }
  210. else
  211. {
  212. $_setting[$row['variable']][$row['subkey']]=$settings_by_access_list[ $var ] [ $subkey ] [$category ]['selected_value'];
  213. }
  214. }
  215. else
  216. {
  217. if ($row['subkey']==NULL)
  218. {
  219. $_setting[$row['variable']]=$row['selected_value'];
  220. }
  221. else
  222. {
  223. $_setting[$row['variable']][$row['subkey']]=$row['selected_value'];
  224. }
  225. }
  226. }
  227. else
  228. {
  229. if ($row['subkey']==NULL)
  230. {
  231. $_setting[$row['variable']]=$row['selected_value'];
  232. }
  233. else
  234. {
  235. $_setting[$row['variable']][$row['subkey']]=$row['selected_value'];
  236. }
  237. }
  238. }
  239. else
  240. {
  241. if ($row['subkey']==NULL)
  242. {
  243. $_setting[$row['variable']]=$row['selected_value'];
  244. }
  245. else
  246. {
  247. $_setting[$row['variable']][$row['subkey']]=$row['selected_value'];
  248. }
  249. }
  250. }
  251. //echo '<pre>';print_r($_setting);echo '</pre>';
  252. // we have to store the settings for the plugins differently because it expects an array
  253. //$sql="SELECT * FROM settings_current WHERE category='plugins'";
  254. //$result=mysql_query($sql) or die(mysql_error());
  255. $result = api_get_settings('Plugins','list',$_configuration['access_url']);
  256. $_plugins=array();
  257. //while ($row=mysql_fetch_array($result))
  258. foreach($result as $row)
  259. {
  260. $key= $row['variable'];
  261. if (is_string($_setting[$key]))
  262. {
  263. $_setting[$key]=array();
  264. }
  265. $_setting[$key][]=$row['selected_value'];
  266. $_plugins[$key][]=$row['selected_value'];
  267. }
  268. // include the local (contextual) parameters of this course or section
  269. require($includePath."/local.inc.php");
  270. // ===== "who is logged in?" module section =====
  271. include_once($includePath."/lib/online.inc.php");
  272. // check and modify the date of user in the track.e.online table
  273. if (!$x=strpos($_SERVER['PHP_SELF'],'whoisonline.php'))
  274. {
  275. LoginCheck(isset($_user['user_id']) ? $_user['user_id'] : '',$_configuration['statistics_database']);
  276. }
  277. // ===== end "who is logged in?" module section =====
  278. if(get_setting('server_type') == 'test')
  279. {
  280. /*
  281. --------------------------------------------
  282. Server type is test
  283. - high error reporting level
  284. - only do addslashes on $_GET and $_POST
  285. --------------------------------------------
  286. */
  287. error_reporting(E_ALL & ~E_NOTICE);
  288. //error_reporting(E_ALL);
  289. //Addslashes to all $_GET variables
  290. foreach($_GET as $key=>$val)
  291. {
  292. if(!ini_get('magic_quotes_gpc'))
  293. {
  294. if(is_string($val))
  295. {
  296. $_GET[$key]=addslashes($val);
  297. }
  298. }
  299. }
  300. //Addslashes to all $_POST variables
  301. foreach($_POST as $key=>$val)
  302. {
  303. if(!ini_get('magic_quotes_gpc'))
  304. {
  305. if(is_string($val))
  306. {
  307. $_POST[$key]=addslashes($val);
  308. }
  309. }
  310. }
  311. }
  312. else
  313. {
  314. /*
  315. --------------------------------------------
  316. Server type is not test
  317. - normal error reporting level
  318. - full fake register globals block
  319. --------------------------------------------
  320. */
  321. error_reporting(E_COMPILE_ERROR | E_ERROR | E_CORE_ERROR);
  322. if(!isset($HTTP_GET_VARS)) { $HTTP_GET_VARS=$_GET; }
  323. if(!isset($HTTP_POST_VARS)) { $HTTP_POST_VARS=$_POST; }
  324. if(!isset($HTTP_POST_FILES)) { $HTTP_POST_FILES=$_FILES; }
  325. if(!isset($HTTP_SESSION_VARS)) { $HTTP_SESSION_VARS=$_SESSION; }
  326. if(!isset($HTTP_SERVER_VARS)) { $HTTP_SERVER_VARS=$_SERVER; }
  327. // Register SESSION variables into $GLOBALS
  328. if(sizeof($HTTP_SESSION_VARS))
  329. {
  330. if(!is_array($_SESSION))
  331. {
  332. $_SESSION=array();
  333. }
  334. foreach($HTTP_SESSION_VARS as $key=>$val)
  335. {
  336. $_SESSION[$key]=$HTTP_SESSION_VARS[$key];
  337. $GLOBALS[$key]=$HTTP_SESSION_VARS[$key];
  338. }
  339. }
  340. // Register SERVER variables into $GLOBALS
  341. if(sizeof($HTTP_SERVER_VARS))
  342. {
  343. $_SERVER=array();
  344. foreach($HTTP_SERVER_VARS as $key=>$val)
  345. {
  346. $_SERVER[$key]=$HTTP_SERVER_VARS[$key];
  347. 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')
  348. {
  349. $GLOBALS[$key]=$HTTP_SERVER_VARS[$key];
  350. }
  351. }
  352. }
  353. }
  354. /*
  355. -----------------------------------------------------------
  356. LOAD LANGUAGE FILES SECTION
  357. -----------------------------------------------------------
  358. */
  359. // if we use the javascript version (without go button) we receive a get
  360. // if we use the non-javascript version (with the go button) we receive a post
  361. $user_language = '';
  362. if(!empty($_GET['language']))
  363. {
  364. $user_language = $_GET["language"];
  365. }
  366. if (!empty($_POST["language_list"]))
  367. {
  368. $user_language = str_replace("index.php?language=","",$_POST["language_list"]);
  369. }
  370. // Checking if we have a valid language. If not we set it to the platform language.
  371. $valid_languages=api_get_languages();
  372. if (!in_array($user_language,$valid_languages['folder']))
  373. {
  374. $user_language=get_setting('platformLanguage');
  375. }
  376. if (in_array($user_language,$valid_languages['folder']) and (isset($_GET['language']) OR isset($_POST['language_list'])))
  377. {
  378. $user_selected_language = $user_language; // $_GET["language"];
  379. $_SESSION["user_language_choice"] = $user_selected_language;
  380. $platformLanguage = $user_selected_language;
  381. }else{
  382. $platformLanguage = get_setting('platformLanguage');
  383. }
  384. if (isset($_SESSION["user_language_choice"]))
  385. {
  386. $language_interface = $_SESSION["user_language_choice"];
  387. }
  388. else
  389. {
  390. $language_interface = get_setting('platformLanguage');
  391. }
  392. if (isset($_user['language']))
  393. {
  394. $language_interface = $_user['language'];
  395. }
  396. if ($_course['language'])
  397. {
  398. $language_interface = $_course['language'];
  399. }
  400. /*
  401. * Include all necessary language files
  402. * - trad4all
  403. * - notification
  404. * - custom tool language files
  405. */
  406. $language_files = array();
  407. $language_files[] = 'trad4all';
  408. $language_files[] = 'notification';
  409. $language_files[] = 'accessibility';
  410. if( isset($language_file) )
  411. {
  412. if( !is_array($language_file))
  413. {
  414. $language_files[] = $language_file;
  415. }
  416. else
  417. {
  418. $language_files = array_merge($language_files,$language_file);
  419. }
  420. }
  421. // Include all files (first english and then current interface language)
  422. $langpath = api_get_path(SYS_CODE_PATH).'lang/';
  423. if (is_array($language_files)) {
  424. foreach($language_files as $index => $language_file) {
  425. include($langpath.'english/'.$language_file.'.inc.php');
  426. $langfile = $langpath.$language_interface.'/'.$language_file.'.inc.php';
  427. if (file_exists($langfile)) {
  428. include($langfile);
  429. }
  430. }
  431. }
  432. //load the charset param after langs because the $charset variable in
  433. //trad4all.inc.php might have set it and we don't want that
  434. $charset = api_get_setting('platform_charset');
  435. //Update of the logout_date field in the table track_e_login (needed for the calculation of the total connection time)
  436. if($_configuration['tracking_enabled'] && !isset($_SESSION['login_as']) && isset($_user))
  437. { // if $_SESSION['login_as'] is set, then the user is an admin logged as the user
  438. $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  439. $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";
  440. $q_last_connection=api_sql_query($sql_last_connection);
  441. if(Database::num_rows($q_last_connection) > 0)
  442. {
  443. $i_id_last_connection=Database::result($q_last_connection,0,"login_id");
  444. $s_sql_update_logout_date="UPDATE $tbl_track_login SET logout_date=NOW() WHERE login_id='$i_id_last_connection'";
  445. api_sql_query($s_sql_update_logout_date);
  446. }
  447. }
  448. ?>