global.inc.php 12 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. // Start session
  42. api_session_start($already_installed);
  43. $error_message_not_installed = <<<EOM
  44. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  45. <html>
  46. <head>
  47. <title>Dokeos not installed!</title>
  48. <style type="text/css" media="screen, projection">
  49. /*<![CDATA[*/
  50. @import "main/css/default/default.css";
  51. /*]]>*/
  52. </style>
  53. </head>
  54. <body>
  55. <div id="header">
  56. <div id="header1"><a href="http://www.dokeos.com">Dokeos Homepage</a></div>
  57. <div class="clear"></div>
  58. <div id="header2">&nbsp;</div>
  59. <div id="header3">&nbsp;</div>
  60. </div>
  61. <div style="text-align: center;"><br /><br />
  62. <form action="main/install/index.php" method="get"><input type="submit" value="&nbsp;&nbsp; Click to INSTALL DOKEOS &nbsp;&nbsp;" /></form><br />
  63. or <a href="documentation/installation_guide.html" target="_blank">read the installation guide</a><br /><br />
  64. </div>
  65. <div id="footer">
  66. <div class="copyright">Platform <a href="http://www.dokeos.com"> Dokeos </a> &copy; 2008 </div>
  67. &nbsp;
  68. </div>
  69. </body>
  70. </html>
  71. EOM;
  72. $error_message_db_problem = <<<EOM
  73. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  74. <html>
  75. <head>
  76. <title>Dokeos database unavailable!</title>
  77. <style type="text/css" media="screen, projection">
  78. /*<![CDATA[*/
  79. @import "main/css/default/default.css";
  80. /*]]>*/
  81. </style>
  82. </head>
  83. <body>
  84. <div id="header">
  85. <div id="header1"><a href="http://www.dokeos.com">Dokeos Homepage</a></div>
  86. <div class="clear"></div>
  87. <div id="header2">&nbsp;</div>
  88. <div id="header3">&nbsp;</div>
  89. </div>
  90. EOM;
  91. $error_message_db_problem .= '
  92. <div style="text-align: center; font-size: large; margin-bottom: 2em;"><br /><br />
  93. This portal is currently experiencing database issues. Please report this to the portal administrator. Thank you for your help.</a>
  94. </div>
  95. <div id="footer">
  96. <div class="copyright">Platform <a href="http://www.dokeos.com"> Dokeos </a> &copy; 2008 </div>
  97. &nbsp;
  98. </div>
  99. </body>
  100. </html>';
  101. if (!$already_installed)
  102. {
  103. //require('installedVersion.inc.php');
  104. die($error_message_not_installed);
  105. }
  106. //Assigning a variable to avoid several useless calls to the database setting.
  107. // Do not over-user. This is only for this script's local use.
  108. $lib_path = api_get_path(LIBRARY_PATH);
  109. // Add the path to the pear packages to the include path
  110. ini_set('include_path',ini_get('include_path').PATH_SEPARATOR.$lib_path.'pear');
  111. // Include the libraries that are necessary everywhere
  112. require_once($lib_path.'database.lib.php');
  113. require_once($lib_path.'display.lib.php');
  114. require_once($lib_path.'text.lib.php');
  115. require_once($lib_path.'security.lib.php');
  116. // @todo: this shouldn't be done here. It should be stored correctly during installation
  117. if(empty($_configuration['statistics_database']) && $already_installed)
  118. {
  119. $_configuration['statistics_database'] = $_configuration['main_database'];
  120. }
  121. // connect to the server database and select the main dokeos database
  122. $dokeos_database_connection = @mysql_connect($_configuration['db_host'], $_configuration['db_user'], $_configuration['db_password']) or die ($error_message_db_problem);
  123. if (! $_configuration['db_host'])
  124. {
  125. die($error_message_db_problem);
  126. }
  127. unset($error_message_db_problem);
  128. unset($error_message_not_installed);
  129. $selectResult = mysql_select_db($_configuration['main_database'],$dokeos_database_connection) or die ('<center>WARNING ! SYSTEM UNABLE TO SELECT THE MAIN DOKEOS DATABASE</center>');
  130. /*
  131. --------------------------------------------
  132. RETRIEVING ALL THE DOKEOS CONFIG SETTINGS
  133. --------------------------------------------
  134. */
  135. $sql="SELECT * FROM settings_current";
  136. $result=mysql_query($sql) or die(mysql_error());
  137. while ($row=mysql_fetch_array($result))
  138. {
  139. if ($row['subkey']==NULL)
  140. {
  141. $_setting[$row['variable']]=$row['selected_value'];
  142. }
  143. else
  144. {
  145. $_setting[$row['variable']][$row['subkey']]=$row['selected_value'];
  146. }
  147. }
  148. // we have to store the settings for the plugins differently because it expects an array
  149. $sql="SELECT * FROM settings_current WHERE category='plugins'";
  150. $result=mysql_query($sql) or die(mysql_error());
  151. $_plugins=array();
  152. while ($row=mysql_fetch_array($result))
  153. {
  154. $key= $row['variable'];
  155. if (is_string($_setting[$key]))
  156. {
  157. $_setting[$key]=array();
  158. }
  159. $_setting[$key][]=$row['selected_value'];
  160. $_plugins[$key][]=$row['selected_value'];
  161. }
  162. // include the local (contextual) parameters of this course or section
  163. require($includePath."/local.inc.php");
  164. // ===== "who is logged in?" module section =====
  165. include_once($includePath."/lib/online.inc.php");
  166. // check and modify the date of user in the track.e.online table
  167. if (!$x=strpos($_SERVER['PHP_SELF'],'whoisonline.php'))
  168. {
  169. LoginCheck(isset($_user['user_id']) ? $_user['user_id'] : '',$_configuration['statistics_database']);
  170. }
  171. // ===== end "who is logged in?" module section =====
  172. if(get_setting('server_type') == 'test')
  173. {
  174. /*
  175. --------------------------------------------
  176. Server type is test
  177. - high error reporting level
  178. - only do addslashes on $_GET and $_POST
  179. --------------------------------------------
  180. */
  181. error_reporting(E_ALL & ~E_NOTICE);
  182. //error_reporting(E_ALL);
  183. //Addslashes to all $_GET variables
  184. foreach($_GET as $key=>$val)
  185. {
  186. if(!ini_get('magic_quotes_gpc'))
  187. {
  188. if(is_string($val))
  189. {
  190. $_GET[$key]=addslashes($val);
  191. }
  192. }
  193. }
  194. //Addslashes to all $_POST variables
  195. foreach($_POST as $key=>$val)
  196. {
  197. if(!ini_get('magic_quotes_gpc'))
  198. {
  199. if(is_string($val))
  200. {
  201. $_POST[$key]=addslashes($val);
  202. }
  203. }
  204. }
  205. }
  206. else
  207. {
  208. /*
  209. --------------------------------------------
  210. Server type is not test
  211. - normal error reporting level
  212. - full fake register globals block
  213. --------------------------------------------
  214. */
  215. error_reporting(E_COMPILE_ERROR | E_ERROR | E_CORE_ERROR);
  216. if(!isset($HTTP_GET_VARS)) { $HTTP_GET_VARS=$_GET; }
  217. if(!isset($HTTP_POST_VARS)) { $HTTP_POST_VARS=$_POST; }
  218. if(!isset($HTTP_POST_FILES)) { $HTTP_POST_FILES=$_FILES; }
  219. if(!isset($HTTP_SESSION_VARS)) { $HTTP_SESSION_VARS=$_SESSION; }
  220. if(!isset($HTTP_SERVER_VARS)) { $HTTP_SERVER_VARS=$_SERVER; }
  221. // Register SESSION variables into $GLOBALS
  222. if(sizeof($HTTP_SESSION_VARS))
  223. {
  224. if(!is_array($_SESSION))
  225. {
  226. $_SESSION=array();
  227. }
  228. foreach($HTTP_SESSION_VARS as $key=>$val)
  229. {
  230. $_SESSION[$key]=$HTTP_SESSION_VARS[$key];
  231. $GLOBALS[$key]=$HTTP_SESSION_VARS[$key];
  232. }
  233. }
  234. // Register SERVER variables into $GLOBALS
  235. if(sizeof($HTTP_SERVER_VARS))
  236. {
  237. $_SERVER=array();
  238. foreach($HTTP_SERVER_VARS as $key=>$val)
  239. {
  240. $_SERVER[$key]=$HTTP_SERVER_VARS[$key];
  241. 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')
  242. {
  243. $GLOBALS[$key]=$HTTP_SERVER_VARS[$key];
  244. }
  245. }
  246. }
  247. }
  248. /*
  249. -----------------------------------------------------------
  250. LOAD LANGUAGE FILES SECTION
  251. -----------------------------------------------------------
  252. */
  253. // if we use the javascript version (without go button) we receive a get
  254. // if we use the non-javascript version (with the go button) we receive a post
  255. $user_language = $_GET["language"];
  256. if ($_POST["language_list"])
  257. {
  258. $user_language = str_replace("index.php?language=","",$_POST["language_list"]);
  259. }
  260. // Checking if we have a valid language. If not we set it to the platform language.
  261. $valid_languages=api_get_languages();
  262. if (!in_array($user_language,$valid_languages['folder']))
  263. {
  264. $user_language=get_setting('platformLanguage');
  265. }
  266. if (in_array($user_language,$valid_languages['folder']) and (isset($_GET['language']) OR isset($_POST['language_list'])))
  267. {
  268. $user_selected_language = $user_language; // $_GET["language"];
  269. $_SESSION["user_language_choice"] = $user_selected_language;
  270. $platformLanguage = $user_selected_language;
  271. }else{
  272. $platformLanguage = get_setting('platformLanguage');
  273. }
  274. if (isset($_SESSION["user_language_choice"]))
  275. {
  276. $language_interface = $_SESSION["user_language_choice"];
  277. }
  278. else
  279. {
  280. $language_interface = get_setting('platformLanguage');
  281. }
  282. if (isset($_user['language']))
  283. {
  284. $language_interface = $_user['language'];
  285. }
  286. if ($_course['language'])
  287. {
  288. $language_interface = $_course['language'];
  289. }
  290. /*
  291. * Include all necessary language files
  292. * - trad4all
  293. * - notification
  294. * - custom tool language files
  295. */
  296. $language_files = array();
  297. $language_files[] = 'trad4all';
  298. $language_files[] = 'notification';
  299. $language_files[] = 'accessibility';
  300. if( isset($language_file) )
  301. {
  302. if( !is_array($language_file))
  303. {
  304. $language_files[] = $language_file;
  305. }
  306. else
  307. {
  308. $language_files = array_merge($language_files,$language_file);
  309. }
  310. }
  311. // Include all files (first english and then current interface language)
  312. foreach($language_files as $index => $language_file)
  313. {
  314. include(api_get_path(SYS_CODE_PATH).'lang/english/'.$language_file.'.inc.php');
  315. include(api_get_path(SYS_CODE_PATH).'lang/'.$language_interface.'/'.$language_file.'.inc.php');
  316. }
  317. //load the charset param after langs because the $charset variable in
  318. //trad4all.inc.php might have set it and we don't want that
  319. $charset = api_get_setting('platform_charset');
  320. //Update of the logout_date field in the table track_e_login (needed for the calculation of the total connection time)
  321. if($_configuration['tracking_enabled'] && !isset($_SESSION['login_as']))
  322. { // if $_SESSION['login_as'] is set, then the user is an admin logged as the user
  323. $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  324. $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";
  325. $q_last_connection=mysql_query($sql_last_connection);
  326. if(mysql_num_rows($q_last_connection) > 0)
  327. {
  328. $i_id_last_connection=mysql_result($q_last_connection,0,"login_id");
  329. $s_sql_update_logout_date="UPDATE $tbl_track_login SET logout_date=NOW() WHERE login_id='$i_id_last_connection'";
  330. api_sql_query($s_sql_update_logout_date);
  331. }
  332. }
  333. ?>