index.php 40 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * @package chamilo.main
  5. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, Refactoring
  6. * @todo check the different @todos in this page and really do them
  7. * @todo check if the news management works as expected
  8. */
  9. // Only this script should have this constant defined. This is used to activate the javascript that
  10. // gives the login name automatic focus in header.inc.html.
  11. /** @todo Couldn't this be done using the $HtmlHeadXtra array? */
  12. define('CHAMILO_HOMEPAGE', true);
  13. $language_file = array('courses', 'index');
  14. /* Flag forcing the 'current course' reset, as we're not inside a course anymore. */
  15. // Maybe we should change this into an api function? an example: Coursemanager::unset();
  16. $cidReset = true;
  17. /* Included libraries */
  18. /** @todo Make all the library files consistent, use filename.lib.php and not filename.lib.inc.php. */
  19. require_once 'main/inc/global.inc.php';
  20. require_once api_get_path(LIBRARY_PATH).'course.lib.php';
  21. require_once api_get_path(LIBRARY_PATH).'events.lib.inc.php';
  22. require_once api_get_path(LIBRARY_PATH).'system_announcements.lib.php';
  23. require_once api_get_path(LIBRARY_PATH).'groupmanager.lib.php';
  24. require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
  25. require_once 'main/chat/chat_functions.lib.php';
  26. require_once api_get_path(LIBRARY_PATH).'custompages.lib.php';
  27. $loginFailed = isset($_GET['loginFailed']) ? true : isset($loginFailed);
  28. $setting_show_also_closed_courses = api_get_setting('show_closed_courses') == 'true';
  29. // The section (for the tabs).
  30. $this_section = SECTION_CAMPUS;
  31. unset($_SESSION['this_section']);//for hmtl editor repository
  32. /* Action Handling */
  33. /** @todo Wouldn't it make more sense if this would be done in local.inc.php so that local.inc.php become the only place where authentication is done?
  34. * by doing this you could logout from any page instead of only from index.php. From the moment there is a logout=true in the url you will be logged out
  35. * this can be usefull when you are on an open course and you need to log in to edit something and you immediately want to check how anonymous users
  36. * will see it.
  37. */
  38. $my_user_id = api_get_user_id();
  39. if (!empty($_GET['logout'])) {
  40. logout();
  41. }
  42. /* Table definitions */
  43. $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
  44. $main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
  45. $track_login_table = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  46. /* Constants and CONFIGURATION parameters */
  47. /** @todo these configuration settings should move to the Chamilo config settings. */
  48. /** Defines wether or not anonymous visitors can see a list of the courses on the Chamilo homepage that are open to the world. */
  49. $_setting['display_courses_to_anonymous_users'] = 'true';
  50. /** @todo Remove this piece of code because this is not used. */
  51. if (isset($_user['user_id'])) {
  52. $nameTools = api_get_setting('siteName');
  53. }
  54. /* LOGIN */
  55. /**
  56. * @todo This piece of code should probably move to local.inc.php where the actual login / logout procedure is handled.
  57. * @todo Consider removing this piece of code because does nothing.
  58. */
  59. if (isset($_GET['submitAuth']) && $_GET['submitAuth'] == 1) {
  60. // nice lie!!!
  61. echo 'Attempted breakin - sysadmins notified.';
  62. session_destroy();
  63. die();
  64. }
  65. // Delete session neccesary for legal terms
  66. if (api_get_setting('allow_terms_conditions') == 'true') {
  67. unset($_SESSION['update_term_and_condition']);
  68. unset($_SESSION['info_current_user']);
  69. }
  70. /**
  71. * @todo This piece of code should probably move to local.inc.php where the actual login procedure is handled.
  72. * @todo Check if this code is used. I think this code is never executed because after clicking the submit button
  73. * the code does the stuff in local.inc.php and then redirects to index.php or user_portal.php depending
  74. * on api_get_setting('page_after_login').
  75. */
  76. if (!empty($_POST['submitAuth'])) {
  77. // The user has been already authenticated, we are now to find the last login of the user.
  78. if (isset ($_user['user_id'])) {
  79. $sql_last_login = "SELECT UNIX_TIMESTAMP(login_date)
  80. FROM $track_login_table
  81. WHERE login_user_id = '".$_user['user_id']."'
  82. ORDER BY login_date DESC LIMIT 1";
  83. $result_last_login = Database::query($sql_last_login);
  84. if (!$result_last_login) {
  85. if (Database::num_rows($result_last_login) > 0) {
  86. $user_last_login_datetime = Database::fetch_array($result_last_login);
  87. $user_last_login_datetime = $user_last_login_datetime[0];
  88. api_session_register('user_last_login_datetime');
  89. }
  90. }
  91. Database::free_result($result_last_login);
  92. //event_login();
  93. if (api_is_platform_admin()) {
  94. // decode all open event informations and fill the track_c_* tables
  95. include api_get_path(LIBRARY_PATH).'stats.lib.inc.php';
  96. decodeOpenInfos();
  97. }
  98. }
  99. } // End login -- if ($_POST['submitAuth'])
  100. else {
  101. // Only if login form was not sent because if the form is sent the user was already on the page.
  102. event_open();
  103. }
  104. // The header.
  105. /*$header_title = get_lang('Homepage');
  106. //$sitename = api_get_setting('siteName');
  107. if (!api_get_user_id()) {
  108. $header_title = null;
  109. }*/
  110. $header_title = null;
  111. if (!api_is_anonymous()) {
  112. $header_title = " ";
  113. }
  114. Display::display_header($header_title);
  115. /* MAIN CODE */
  116. echo '<div class="maincontent" id="content">';
  117. // Plugins for loginpage_main AND campushomepage_main.
  118. if (!api_get_user_id()) {
  119. api_plugin('loginpage_main');
  120. } else {
  121. api_plugin('campushomepage_main');
  122. }
  123. $home = 'home/';
  124. if ($_configuration['multiple_access_urls']) {
  125. $access_url_id = api_get_current_access_url_id();
  126. if ($access_url_id != -1){
  127. $url_info = api_get_access_url($access_url_id);
  128. $url = api_remove_trailing_slash(preg_replace('/https?:\/\//i', '', $url_info['url']));
  129. $clean_url = replace_dangerous_char($url);
  130. $clean_url = str_replace('/', '-', $clean_url);
  131. $clean_url .= '/';
  132. $home_old = 'home/';
  133. $home = 'home/'.$clean_url;
  134. }
  135. }
  136. // Including the page for the news
  137. $page_included = false;
  138. if (!empty($_GET['include']) && preg_match('/^[a-zA-Z0-9_-]*\.html$/', $_GET['include'])) {
  139. $open = @(string)file_get_contents(api_get_path(SYS_PATH).$home.$_GET['include']);
  140. $open = api_to_system_encoding($open, api_detect_encoding(strip_tags($open)));
  141. echo $open;
  142. $page_included = true;
  143. } else {
  144. if (!empty($_SESSION['user_language_choice'])) {
  145. $user_selected_language = $_SESSION['user_language_choice'];
  146. } elseif (!empty($_SESSION['_user']['language'])) {
  147. $user_selected_language = $_SESSION['_user']['language'];
  148. } else {
  149. $user_selected_language = api_get_setting('platformLanguage');
  150. }
  151. if (!file_exists($home.'home_news_'.$user_selected_language.'.html')) {
  152. if (file_exists($home.'home_top.html')) {
  153. $home_top_temp = file($home.'home_top.html');
  154. } else {
  155. $home_top_temp = file($home_old.'home_top.html');
  156. }
  157. $home_top_temp = implode('', $home_top_temp);
  158. } else {
  159. if (file_exists($home.'home_top_'.$user_selected_language.'.html')) {
  160. $home_top_temp = file_get_contents($home.'home_top_'.$user_selected_language.'.html');
  161. } else {
  162. $home_top_temp = file_get_contents($home.'home_top.html');
  163. }
  164. }
  165. if (trim($home_top_temp) == '' && api_is_platform_admin()) {
  166. $home_top_temp = get_lang('PortalHomepageDefaultIntroduction');
  167. }
  168. $open = str_replace('{rel_path}', api_get_path(REL_PATH), $home_top_temp);
  169. $open = api_to_system_encoding($open, api_detect_encoding(strip_tags($open)));
  170. echo $open;
  171. }
  172. // Display courses and category list.
  173. if (!$page_included) {
  174. // Display System announcements
  175. $announcement = isset($_GET['announcement']) ? $_GET['announcement'] : -1;
  176. $announcement = intval($announcement);
  177. if (isset($_user['user_id'])) {
  178. $visibility = api_is_allowed_to_create_course() ? VISIBLE_TEACHER : VISIBLE_STUDENT;
  179. SystemAnnouncementManager :: display_announcements($visibility, $announcement);
  180. } else {
  181. SystemAnnouncementManager :: display_announcements(VISIBLE_GUEST, $announcement);
  182. }
  183. if (api_get_setting('display_categories_on_homepage') == 'true') {
  184. echo '<div class="home_cats">';
  185. display_anonymous_course_list();
  186. echo '</div>';
  187. }
  188. }
  189. echo '</div>';
  190. echo '<div id="menu-wrapper">';
  191. if (!api_is_anonymous()) {
  192. // @todo move all this in a class/function
  193. //Always show the user image
  194. $img_array = UserManager::get_user_picture_path_by_id(api_get_user_id(), 'web', true, true);
  195. $no_image = false;
  196. if ($img_array['file'] == 'unknown.jpg') {
  197. $no_image = true;
  198. }
  199. $img_array = UserManager::get_picture_user(api_get_user_id(), $img_array['file'], 50, USER_IMAGE_SIZE_MEDIUM, ' width="90" height="90" ');
  200. $profile_content .='<div id="social_widget">';
  201. $profile_content .= '<div id="social_widget_image">';
  202. if (api_get_setting('allow_social_tool') == 'true') {
  203. if (!$no_image) {
  204. $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/social/home.php"><img src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
  205. } else {
  206. $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/auth/profile.php"><img title="'.get_lang('EditProfile').'" src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
  207. }
  208. } else {
  209. $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/auth/profile.php"><img title="'.get_lang('EditProfile').'" src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
  210. }
  211. $profile_content .= ' </div></div>';
  212. if (api_get_setting('allow_message_tool') == 'true') {
  213. require_once api_get_path(LIBRARY_PATH).'message.lib.php';
  214. require_once api_get_path(LIBRARY_PATH).'social.lib.php';
  215. require_once api_get_path(LIBRARY_PATH).'group_portal_manager.lib.php';
  216. // New messages.
  217. $number_of_new_messages = MessageManager::get_new_messages();
  218. // New contact invitations.
  219. $number_of_new_messages_of_friend = SocialManager::get_message_number_invitation_by_user_id(api_get_user_id());
  220. // New group invitations sent by a moderator.
  221. $group_pending_invitations = GroupPortalManager::get_groups_by_user(api_get_user_id(), GROUP_USER_PERMISSION_PENDING_INVITATION, false);
  222. $group_pending_invitations = count($group_pending_invitations);
  223. $total_invitations = $number_of_new_messages_of_friend + $group_pending_invitations;
  224. $cant_msg = '';
  225. if ($number_of_new_messages > 0) {
  226. $cant_msg = ' ('.$number_of_new_messages.')';
  227. }
  228. $profile_content .= '<div class="clear"></div>';
  229. $profile_content .= '<div class="message-content"><ul class="menulist">';
  230. $link = '';
  231. if (api_get_setting('allow_social_tool') == 'true') {
  232. $link = '?f=social';
  233. }
  234. $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/messages/inbox.php'.$link.'" class="message-body">'.get_lang('Inbox').$cant_msg.' </a></li>';
  235. $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/messages/new_message.php'.$link.'" class="message-body">'.get_lang('Compose').' </a></li>';
  236. if (api_get_setting('allow_social_tool') == 'true') {
  237. if ($total_invitations == 0) {
  238. $total_invitations = '';
  239. } else {
  240. $total_invitations = ' ('.$total_invitations.')';
  241. }
  242. $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/social/invitations.php" class="message-body">'.get_lang('PendingInvitations').' '.$total_invitations.' </a></li>';
  243. }
  244. $profile_content .= '</ul>';
  245. $profile_content .= '</div>';
  246. }
  247. //Profile content
  248. echo show_right_block(get_lang('Profile'), $profile_content);
  249. }
  250. // Display right menu: language form, login section + useful weblinks.
  251. display_anonymous_right_menu();
  252. echo '</div>';
  253. /* Footer */
  254. Display :: display_footer();
  255. /* Functions */
  256. /**
  257. * This function handles the logout and is called whenever there is a $_GET['logout']
  258. *
  259. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  260. */
  261. function logout() {
  262. global $_configuration, $extAuthSource;
  263. // Variable initialisation.
  264. $query_string = '';
  265. if (!empty($_SESSION['user_language_choice'])) {
  266. $query_string = '?language='.$_SESSION['user_language_choice'];
  267. }
  268. // Database table definition.
  269. $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  270. // Selecting the last login of the user.
  271. $uid = intval($_GET['uid']);
  272. $sql_last_connection = "SELECT login_id, login_date FROM $tbl_track_login WHERE login_user_id='$uid' ORDER BY login_date DESC LIMIT 0,1";
  273. $q_last_connection = Database::query($sql_last_connection);
  274. if (Database::num_rows($q_last_connection) > 0) {
  275. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  276. }
  277. if (!isset($_SESSION['login_as'])) {
  278. $current_date = date('Y-m-d H:i:s', time());
  279. $s_sql_update_logout_date = "UPDATE $tbl_track_login SET logout_date='".$current_date."' WHERE login_id='$i_id_last_connection'";
  280. Database::query($s_sql_update_logout_date);
  281. }
  282. LoginDelete($uid); // From inc/lib/online.inc.php - removes the "online" status.
  283. // The following code enables the use of an external logout function.
  284. // Example: define a $extAuthSource['ldap']['logout'] = 'file.php' in configuration.php.
  285. // Then a function called ldap_logout() inside that file
  286. // (using *authent_name*_logout as the function name) and the following code
  287. // will find and execute it.
  288. $uinfo = api_get_user_info($uid);
  289. if (($uinfo['auth_source'] != PLATFORM_AUTH_SOURCE) && is_array($extAuthSource)) {
  290. if (is_array($extAuthSource[$uinfo['auth_source']])) {
  291. $subarray = $extAuthSource[$uinfo['auth_source']];
  292. if (!empty($subarray['logout']) && file_exists($subarray['logout'])) {
  293. include_once ($subarray['logout']);
  294. $logout_function = $uinfo['auth_source'].'_logout';
  295. if (function_exists($logout_function)) {
  296. $logout_function($uinfo);
  297. }
  298. }
  299. }
  300. }
  301. exit_of_chat($uid);
  302. api_session_destroy();
  303. header("Location: index.php$query_string");
  304. exit();
  305. }
  306. /**
  307. * This function checks if there are courses that are open to the world in the platform course categories (=faculties)
  308. *
  309. * @param unknown_type $category
  310. * @return boolean
  311. */
  312. function category_has_open_courses($category) {
  313. global $setting_show_also_closed_courses;
  314. $user_identified = (api_get_user_id() > 0 && !api_is_anonymous());
  315. $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
  316. $sql_query = "SELECT * FROM $main_course_table WHERE category_code='$category'";
  317. $sql_result = Database::query($sql_query);
  318. while ($course = Database::fetch_array($sql_result)) {
  319. if (!$setting_show_also_closed_courses) {
  320. if ((api_get_user_id() > 0
  321. && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
  322. || ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)) {
  323. return true; //at least one open course
  324. }
  325. } else {
  326. if (isset($course['visibility'])) {
  327. return true; // At least one course (it does not matter weither it's open or not because $setting_show_also_closed_courses = true).
  328. }
  329. }
  330. }
  331. return false;
  332. }
  333. /**
  334. * Display create course link
  335. */
  336. function display_create_course_link() {
  337. echo '<li><a href="main/create_course/add_course.php">'.
  338. (api_get_setting('course_validation') == 'true' ? get_lang('CreateCourseRequest') : get_lang('CourseCreate')).'</a></li>';
  339. }
  340. /**
  341. * Display edit course list links
  342. */
  343. function display_edit_course_list_links() {
  344. echo '<li><a href="main/auth/courses.php">'.get_lang('CourseManagement').'</a></li>';
  345. }
  346. /**
  347. * Display dashboard link
  348. */
  349. function display_dashboard_link() {
  350. echo '<li><a href="main/dashboard/index.php">'.get_lang('Dashboard').'</a></li>';
  351. }
  352. /**
  353. * Displays the right-hand menu for anonymous users:
  354. * login form, useful links, help section
  355. * Warning: function defines globals
  356. * @version 1.0.1
  357. * @todo does $_plugins need to be global?
  358. */
  359. function display_anonymous_right_menu() {
  360. global $loginFailed, $_plugins, $_user, $menu_navigation, $home, $home_old;
  361. $platformLanguage = api_get_setting('platformLanguage');
  362. $sys_path = api_get_path(SYS_PATH);
  363. $user_selected_language = api_get_interface_language();
  364. echo '<div class="menu" id="menu">';
  365. if (!($_user['user_id']) || api_is_anonymous($_user['user_id']) ) { // Only display if the user isn't logged in.
  366. api_display_language_form(true);
  367. echo '<br />';
  368. display_login_form();
  369. if ($loginFailed) {
  370. echo '<br />';
  371. handle_login_failed();
  372. }
  373. if (api_get_setting('allow_lostpassword') == 'true' || api_get_setting('allow_registration') == 'true') {
  374. echo '<div class="menusection"><span class="menusectioncaption">'.get_lang('MenuUser').'</span><ul class="menulist">';
  375. if (api_get_setting('allow_registration') != 'false') {
  376. echo '<li><a href="main/auth/inscription.php">'.get_lang('Reg').'</a></li>';
  377. }
  378. if (api_get_setting('allow_lostpassword') == 'true') {
  379. display_lost_password_info();
  380. }
  381. echo '</ul></div>';
  382. }
  383. if (api_number_of_plugins('loginpage_menu') > 0) {
  384. echo '<div class="note" style="background: none">';
  385. api_plugin('loginpage_menu');
  386. echo '</div>';
  387. }
  388. }
  389. // My Account section.
  390. if (isset($_SESSION['_user']['user_id']) && $_SESSION['_user']['user_id'] != 0) {
  391. // tabs that are deactivated are added here
  392. $show_menu = false;
  393. $show_create_link = false;
  394. $show_course_link = false;
  395. $display_add_course_link = api_is_allowed_to_create_course() && ($_SESSION['studentview'] != 'studentenview');
  396. if ($display_add_course_link) {
  397. //display_create_course_link();
  398. $show_menu = true;
  399. $show_create_link = true;
  400. }
  401. if (api_is_platform_admin() || api_is_course_admin() || api_is_allowed_to_create_course()) {
  402. $show_menu = true;
  403. $show_course_link = true;
  404. } else {
  405. if (api_get_setting('allow_students_to_browse_courses') == 'true') {
  406. $show_menu = true;
  407. $show_course_link = true;
  408. }
  409. }
  410. if ($show_menu) {
  411. echo '<div class="menusection">';
  412. echo '<span class="menusectioncaption">'.get_lang('MenuUser').'</span>';
  413. echo '<ul class="menulist">';
  414. if ($show_create_link) {
  415. display_create_course_link();
  416. }
  417. if ($show_course_link) {
  418. if (!api_is_drh() && !api_is_session_admin()) {
  419. display_edit_course_list_links();
  420. } else {
  421. display_dashboard_link();
  422. }
  423. }
  424. echo '</ul></div>';
  425. }
  426. }
  427. echo '</div>';
  428. // Notice
  429. $home_notice = @(string)file_get_contents($sys_path.$home.'home_notice_'.$user_selected_language.'.html');
  430. if (empty($home_notice)) {
  431. $home_notice = @(string)file_get_contents($sys_path.$home.'home_notice.html');
  432. }
  433. if (!empty($home_notice)) {
  434. $home_notice = api_to_system_encoding($home_notice, api_detect_encoding(strip_tags($home_notice)));
  435. echo show_right_block('', $home_notice, 'note');
  436. }
  437. if (isset($_SESSION['_user']['user_id']) && $_SESSION['_user']['user_id'] != 0) {
  438. // Deleting the myprofile link.
  439. if (api_get_setting('allow_social_tool') == 'true') {
  440. unset($menu_navigation['myprofile']);
  441. }
  442. if (!empty($menu_navigation)) {
  443. $content = '<ul class="menulist">';
  444. foreach ($menu_navigation as $section => $navigation_info) {
  445. $current = $section == $GLOBALS['this_section'] ? ' id="current"' : '';
  446. $content .='<li'.$current.'><a href="'.$navigation_info['url'].'" target="_self">'.$navigation_info['title'].'</a></li>';
  447. }
  448. $content .= '</ul>';
  449. echo show_right_block(get_lang('MainNavigation'), $content);
  450. }
  451. }
  452. // Help section.
  453. /* Hide right menu "general" and other parts on anonymous right menu. */
  454. if (!isset($user_selected_language)) {
  455. $user_selected_language = $platformLanguage;
  456. }
  457. $home_menu = @(string)file_get_contents($sys_path.$home.'home_menu_'.$user_selected_language.'.html');
  458. if (!empty($home_menu)) {
  459. $home_menu_content .= '<ul class="menulist">';
  460. $home_menu_content .= api_to_system_encoding($home_menu, api_detect_encoding(strip_tags($home_menu)));
  461. $home_menu_content .= '</ul>';
  462. echo show_right_block(get_lang('MenuGeneral'), $home_menu_content);
  463. }
  464. //Plugin
  465. if ($_user['user_id'] && api_number_of_plugins('campushomepage_menu') > 0) {
  466. ob_start();
  467. api_plugin('campushomepage_menu');
  468. $plugin_content = ob_get_contents();
  469. ob_end_clean();
  470. echo show_right_block('', $plugin_content);
  471. }
  472. }
  473. /**
  474. * Reacts on a failed login:
  475. * Displays an explanation with a link to the registration form.
  476. *
  477. * @version 1.0.1
  478. */
  479. function handle_login_failed() {
  480. if (!isset($_GET['error'])) {
  481. $message = get_lang('InvalidId');
  482. if (api_is_self_registration_allowed()) {
  483. $message = get_lang('InvalidForSelfRegistration');
  484. }
  485. } else {
  486. switch ($_GET['error']) {
  487. case '':
  488. $message = get_lang('InvalidId');
  489. if (api_is_self_registration_allowed()) {
  490. $message = get_lang('InvalidForSelfRegistration');
  491. }
  492. break;
  493. case 'account_expired':
  494. $message = get_lang('AccountExpired');
  495. break;
  496. case 'account_inactive':
  497. $message = get_lang('AccountInactive');
  498. break;
  499. case 'user_password_incorrect':
  500. $message = get_lang('InvalidId');
  501. break;
  502. case 'access_url_inactive':
  503. $message = get_lang('AccountURLInactive');
  504. break;
  505. }
  506. }
  507. echo '<div id="login_fail">'.$message.'</div>';
  508. }
  509. /**
  510. * Adds a form to let users login
  511. * @version 1.1
  512. */
  513. function display_login_form() {
  514. $form = new FormValidator('formLogin');
  515. $form->addElement('text', 'login', get_lang('UserName'), array('size' => 17));
  516. $form->addElement('password', 'password', get_lang('Pass'), array('size' => 17));
  517. $form->addElement('style_submit_button','submitAuth', get_lang('LoginEnter'), array('class' => 'login'));
  518. $renderer =& $form->defaultRenderer();
  519. $renderer->setElementTemplate('<div><label>{label}</label></div><div>{element}</div>');
  520. $form->display();
  521. if (api_get_setting('openid_authentication') == 'true') {
  522. include_once 'main/auth/openid/login.php';
  523. echo '<div>'.openid_form().'</div>';
  524. }
  525. }
  526. /**
  527. * Displays a link to the lost password section
  528. */
  529. function display_lost_password_info() {
  530. echo '<li><a href="main/auth/lostPassword.php">'.get_lang('LostPassword').'</a></li>';
  531. }
  532. /**
  533. * Display list of courses in a category.
  534. * (for anonymous users)
  535. *
  536. * @version 1.1
  537. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University - refactoring and code cleaning
  538. */
  539. function display_anonymous_course_list() {
  540. $ctok = $_SESSION['sec_token'];
  541. $stok = Security::get_token();
  542. // Initialization.
  543. $user_identified = (api_get_user_id() > 0 && !api_is_anonymous());
  544. $web_course_path = api_get_path(WEB_COURSE_PATH);
  545. $category = Database::escape_string($_GET['category']);
  546. global $setting_show_also_closed_courses;
  547. // Database table definitions.
  548. $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
  549. $main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
  550. $platformLanguage = api_get_setting('platformLanguage');
  551. // Get list of courses in category $category.
  552. $sql_get_course_list = "SELECT * FROM $main_course_table cours
  553. WHERE category_code = '".Database::escape_string($_GET['category'])."'
  554. ORDER BY title, UPPER(visual_code)";
  555. // Showing only the courses of the current access_url_id.
  556. global $_configuration;
  557. if ($_configuration['multiple_access_urls']) {
  558. $url_access_id = api_get_current_access_url_id();
  559. if ($url_access_id != -1) {
  560. $tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  561. $sql_get_course_list = "SELECT * FROM $main_course_table as course INNER JOIN $tbl_url_rel_course as url_rel_course
  562. ON (url_rel_course.course_code=course.code)
  563. WHERE access_url_id = $url_access_id AND category_code = '".Database::escape_string($_GET['category'])."' ORDER BY title, UPPER(visual_code)";
  564. }
  565. }
  566. // Removed: AND cours.visibility='".COURSE_VISIBILITY_OPEN_WORLD."'
  567. $sql_result_courses = Database::query($sql_get_course_list);
  568. while ($course_result = Database::fetch_array($sql_result_courses)) {
  569. $course_list[] = $course_result;
  570. }
  571. $platform_visible_courses = '';
  572. // $setting_show_also_closed_courses
  573. if ($user_identified) {
  574. if ($setting_show_also_closed_courses) {
  575. $platform_visible_courses = '';
  576. } else {
  577. $platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' OR t3.visibility='".COURSE_VISIBILITY_OPEN_PLATFORM."' )";
  578. }
  579. } else {
  580. if ($setting_show_also_closed_courses) {
  581. $platform_visible_courses = '';
  582. } else {
  583. $platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' )";
  584. }
  585. }
  586. $sqlGetSubCatList = "
  587. SELECT t1.name,t1.code,t1.parent_id,t1.children_count,COUNT(DISTINCT t3.code) AS nbCourse
  588. FROM $main_category_table t1
  589. LEFT JOIN $main_category_table t2 ON t1.code=t2.parent_id
  590. LEFT JOIN $main_course_table t3 ON (t3.category_code=t1.code $platform_visible_courses)
  591. WHERE t1.parent_id ". (empty ($category) ? "IS NULL" : "='$category'")."
  592. GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos, t1.name";
  593. // Showing only the category of courses of the current access_url_id.
  594. global $_configuration;
  595. if ($_configuration['multiple_access_urls']) {
  596. $url_access_id = api_get_current_access_url_id();
  597. if ($url_access_id != -1) {
  598. $tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  599. $sqlGetSubCatList = "
  600. SELECT t1.name,t1.code,t1.parent_id,t1.children_count,COUNT(DISTINCT t3.code) AS nbCourse
  601. FROM $main_category_table t1
  602. LEFT JOIN $main_category_table t2 ON t1.code=t2.parent_id
  603. LEFT JOIN $main_course_table t3 ON (t3.category_code=t1.code $platform_visible_courses)
  604. INNER JOIN $tbl_url_rel_course as url_rel_course
  605. ON (url_rel_course.course_code=t3.code)
  606. WHERE access_url_id = $url_access_id AND t1.parent_id ".(empty($category) ? "IS NULL" : "='$category'")."
  607. GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos, t1.name";
  608. }
  609. }
  610. $resCats = Database::query($sqlGetSubCatList);
  611. $thereIsSubCat = false;
  612. if (Database::num_rows($resCats) > 0) {
  613. $htmlListCat = '<h4 style="margin-top: 0px;">'.get_lang('CatList').'</h4><ul>';
  614. while ($catLine = Database::fetch_array($resCats)) {
  615. if ($catLine['code'] != $category) {
  616. $category_has_open_courses = category_has_open_courses($catLine['code']);
  617. if ($category_has_open_courses) {
  618. // The category contains courses accessible to anonymous visitors.
  619. $htmlListCat .= '<li>';
  620. $htmlListCat .= '<a href="'.api_get_self().'?category='.$catLine['code'].'">'.$catLine['name'].'</a>';
  621. if (api_get_setting('show_number_of_courses') == 'true') {
  622. $htmlListCat .= ' ('.$catLine['nbCourse'].' '.get_lang('Courses').')';
  623. }
  624. $htmlListCat .= "</li>\n";
  625. $thereIsSubCat = true;
  626. } elseif ($catLine['children_count'] > 0) {
  627. // The category has children, subcategories.
  628. $htmlListCat .= '<li>';
  629. $htmlListCat .= '<a href="'.api_get_self().'?category='.$catLine['code'].'">'.$catLine['name'].'</a>';
  630. $htmlListCat .= "</li>\n";
  631. $thereIsSubCat = true;
  632. }
  633. /* End changed code to eliminate the (0 courses) after empty categories. */
  634. elseif (api_get_setting('show_empty_course_categories') == 'true') {
  635. $htmlListCat .= '<li>';
  636. $htmlListCat .= $catLine['name'];
  637. $htmlListCat .= "</li>\n";
  638. $thereIsSubCat = true;
  639. } // Else don't set thereIsSubCat to true to avoid printing things if not requested.
  640. } else {
  641. $htmlTitre = '<p>';
  642. if (api_get_setting('show_back_link_on_top_of_tree') == 'true') {
  643. $htmlTitre .= '<a href="'.api_get_self().'">&lt;&lt; '.get_lang('BackToHomePage').'</a>';
  644. }
  645. if (!is_null($catLine['parent_id']) || (api_get_setting('show_back_link_on_top_of_tree') != 'true' && !is_null($catLine['code']))) {
  646. $htmlTitre .= '<a href="'.api_get_self().'?category='.$catLine['parent_id'].'">&lt;&lt; '.get_lang('Up').'</a>';
  647. }
  648. $htmlTitre .= "</p>\n";
  649. if ($category != "" && !is_null($catLine['code'])) {
  650. $htmlTitre .= '<h3>'.$catLine['name']."</h3>\n";
  651. } else {
  652. $htmlTitre .= '<h3>'.get_lang('Categories')."</h3>\n";
  653. }
  654. }
  655. }
  656. $htmlListCat .= "</ul>\n";
  657. }
  658. echo $htmlTitre;
  659. if ($thereIsSubCat) {
  660. echo $htmlListCat;
  661. }
  662. while ($categoryName = Database::fetch_array($resCats)) {
  663. echo '<h3>', $categoryName['name'], "</h3>\n";
  664. }
  665. $numrows = Database::num_rows($sql_result_courses);
  666. $courses_list_string = '';
  667. $courses_shown = 0;
  668. if ($numrows > 0) {
  669. if ($thereIsSubCat) {
  670. $courses_list_string .= "<hr size=\"1\" noshade=\"noshade\">\n";
  671. }
  672. $courses_list_string .= '<h4 style="margin-top: 0px;">'.get_lang('CourseList')."</h4>\n<ul>\n";
  673. if (api_get_user_id()) {
  674. $courses_of_user = get_courses_of_user(api_get_user_id());
  675. }
  676. foreach ($course_list as $course) {
  677. // $setting_show_also_closed_courses
  678. if (!$setting_show_also_closed_courses) {
  679. // If we do not show the closed courses
  680. // we only show the courses that are open to the world (to everybody)
  681. // and the courses that are open to the platform (if the current user is a registered user.
  682. if( ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM) || ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)) {
  683. $courses_shown++;
  684. $courses_list_string .= "<li>\n";
  685. $courses_list_string .= '<a href="'.$web_course_path.$course['directory'].'/">'.$course['title'].'</a><br />';
  686. if (api_get_setting('display_coursecode_in_courselist') == 'true') {
  687. $courses_list_string .= $course['visual_code'];
  688. }
  689. if (api_get_setting('display_coursecode_in_courselist') == 'true' && api_get_setting('display_teacher_in_courselist') == 'true') {
  690. $courses_list_string .= ' - ';
  691. }
  692. if (api_get_setting('display_teacher_in_courselist') == 'true') {
  693. $courses_list_string .= $course['tutor_name'];
  694. }
  695. if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
  696. $courses_list_string .= ' - '.$course['course_language'];
  697. }
  698. $courses_list_string .= "</li>\n";
  699. }
  700. }
  701. // We DO show the closed courses.
  702. // The course is accessible if (link to the course homepage):
  703. // 1. the course is open to the world (doesn't matter if the user is logged in or not): $course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD);
  704. // 2. the user is logged in and the course is open to the world or open to the platform: ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM);
  705. // 3. the user is logged in and the user is subscribed to the course and the course visibility is not COURSE_VISIBILITY_CLOSED;
  706. // 4. the user is logged in and the user is course admin of te course (regardless of the course visibility setting);
  707. // 5. the user is the platform admin api_is_platform_admin().
  708. //
  709. else {
  710. $courses_shown++;
  711. $courses_list_string .= "<li>\n";
  712. if ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
  713. || ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
  714. || ($user_identified && key_exists($course['code'], $courses_of_user) && $course['visibility'] != COURSE_VISIBILITY_CLOSED)
  715. || $courses_of_user[$course['code']]['status'] == '1'
  716. || api_is_platform_admin()) {
  717. $courses_list_string .= '<a href="'.$web_course_path.$course['directory'].'/">';
  718. }
  719. $courses_list_string .= $course['title'];
  720. if ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
  721. || ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
  722. || ($user_identified && key_exists($course['code'], $courses_of_user) && $course['visibility'] != COURSE_VISIBILITY_CLOSED)
  723. || $courses_of_user[$course['code']]['status'] == '1'
  724. || api_is_platform_admin()) {
  725. $courses_list_string .= '</a><br />';
  726. }
  727. if (api_get_setting('display_coursecode_in_courselist') == 'true') {
  728. $courses_list_string .= ' '.$course['visual_code'];
  729. }
  730. if (api_get_setting('display_coursecode_in_courselist') == 'true' && api_get_setting('display_teacher_in_courselist') == 'true') {
  731. $courses_list_string .= ' - ';
  732. }
  733. if (api_get_setting('display_teacher_in_courselist') == 'true') {
  734. $courses_list_string .= $course['tutor_name'];
  735. }
  736. if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
  737. $courses_list_string .= ' - '.$course['course_language'];
  738. }
  739. if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
  740. $courses_list_string .= ' - '.$course['course_language'];
  741. }
  742. // We display a subscription link if:
  743. // 1. it is allowed to register for the course and if the course is not already in the courselist of the user and if the user is identiefied
  744. // 2.
  745. if ($user_identified && !key_exists($course['code'], $courses_of_user)) {
  746. if ($course['subscribe'] == '1') {
  747. $courses_list_string .= '<form action="main/auth/courses.php?action=subscribe&category='.Security::remove_XSS($_GET['category']).'" method="post">';
  748. $courses_list_string .= '<input type="hidden" name="sec_token" value="'.$stok.'">';
  749. $courses_list_string .= '<input type="hidden" name="subscribe" value="'.$course['code'].'" />';
  750. $courses_list_string .= '<input type="image" name="unsub" src="main/img/enroll.gif" alt="'.get_lang('Subscribe').'" />'.get_lang('Subscribe').'</form>';
  751. } else {
  752. $courses_list_string .= '<br />'.get_lang('SubscribingNotAllowed');
  753. }
  754. }
  755. $courses_list_string .= "</li>\n";
  756. }
  757. }
  758. $courses_list_string .= "</ul>\n";
  759. } else {
  760. //echo '<blockquote>', get_lang('_No_course_publicly_available'), "</blockquote>\n";
  761. }
  762. if ($courses_shown > 0) { // Only display the list of courses and categories if there was more than
  763. // 0 courses visible to the world (we're in the anonymous list here).
  764. echo $courses_list_string;
  765. }
  766. if ($category != '') {
  767. echo '<p><a href="'.api_get_self().'"> ', Display :: return_icon('back.png', get_lang('BackToHomePage')), get_lang('BackToHomePage'), '</a></p>', "\n";
  768. }
  769. }
  770. /**
  771. * retrieves all the courses that the user has already subscribed to
  772. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, Belgium
  773. * @param int $user_id: the id of the user
  774. * @return array an array containing all the information of the courses of the given user
  775. */
  776. function get_courses_of_user($user_id) {
  777. $table_course = Database::get_main_table(TABLE_MAIN_COURSE);
  778. $table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  779. // Secondly we select the courses that are in a category (user_course_cat <> 0) and sort these according to the sort of the category
  780. $user_id = intval($user_id);
  781. $sql_select_courses = "SELECT course.code k, course.visual_code vc, course.subscribe subscr, course.unsubscribe unsubscr,
  782. course.title i, course.tutor_name t, course.db_name db, course.directory dir, course_rel_user.status status,
  783. course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
  784. FROM $table_course course,
  785. $table_course_user course_rel_user
  786. WHERE course.code = course_rel_user.course_code
  787. AND course_rel_user.user_id = '".$user_id."'
  788. AND course_rel_user.relation_type<>".COURSE_RELATION_TYPE_RRHH."
  789. ORDER BY course_rel_user.sort ASC";
  790. $result = Database::query($sql_select_courses);
  791. $courses = array();
  792. while ($row = Database::fetch_array($result)) {
  793. // We only need the database name of the course.
  794. $courses[$row['k']] = array('db' => $row['db'], 'code' => $row['k'], 'visual_code' => $row['vc'], 'title' => $row['i'], 'directory' => $row['dir'], 'status' => $row['status'], 'tutor' => $row['t'], 'subscribe' => $row['subscr'], 'unsubscribe' => $row['unsubscr'], 'sort' => $row['sort'], 'user_course_category' => $row['user_course_cat']);
  795. }
  796. return $courses;
  797. }
  798. function show_right_block($title, $content, $class = '') {
  799. $html = '';
  800. $html.= '<div id="menu" class="menu">';
  801. $html.= '<div class="menusection '.$class.' ">';
  802. if (!empty($title)) {
  803. $html.= '<span class="menusectioncaption">'.$title.'</span>';
  804. }
  805. $html.= $content;
  806. $html.= '</div>';
  807. $html.= '</div>';
  808. return $html;
  809. }