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. $loginFailed = isset($_GET['loginFailed']) ? true : isset($loginFailed);
  27. $setting_show_also_closed_courses = api_get_setting('show_closed_courses') == 'true';
  28. // The section (for the tabs).
  29. $this_section = SECTION_CAMPUS;
  30. unset($_SESSION['this_section']);//for hmtl editor repository
  31. /* Action Handling */
  32. /** @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?
  33. * 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
  34. * 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
  35. * will see it.
  36. */
  37. $my_user_id = api_get_user_id();
  38. if (!empty($_GET['logout'])) {
  39. logout();
  40. }
  41. /* Table definitions */
  42. $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
  43. $main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
  44. $track_login_table = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  45. /* Constants and CONFIGURATION parameters */
  46. /** @todo these configuration settings should move to the Chamilo config settings. */
  47. /** Defines wether or not anonymous visitors can see a list of the courses on the Chamilo homepage that are open to the world. */
  48. $_setting['display_courses_to_anonymous_users'] = 'true';
  49. /** @todo Remove this piece of code because this is not used. */
  50. if (isset($_user['user_id'])) {
  51. $nameTools = api_get_setting('siteName');
  52. }
  53. /* LOGIN */
  54. /**
  55. * @todo This piece of code should probably move to local.inc.php where the actual login / logout procedure is handled.
  56. * @todo Consider removing this piece of code because does nothing.
  57. */
  58. if (isset($_GET['submitAuth']) && $_GET['submitAuth'] == 1) {
  59. // nice lie!!!
  60. echo 'Attempted breakin - sysadmins notified.';
  61. session_destroy();
  62. die();
  63. }
  64. // Delete session neccesary for legal terms
  65. if (api_get_setting('allow_terms_conditions') == 'true') {
  66. unset($_SESSION['update_term_and_condition']);
  67. unset($_SESSION['info_current_user']);
  68. }
  69. //If we are not logged in and customapages activated
  70. if (!api_get_user_id() && api_get_setting('use_custom_pages') == 'true' ){
  71. require_once api_get_path(LIBRARY_PATH).'custompages.lib.php';
  72. CustomPages::displayPage('index-unlogged');
  73. }
  74. /**
  75. * @todo This piece of code should probably move to local.inc.php where the actual login procedure is handled.
  76. * @todo Check if this code is used. I think this code is never executed because after clicking the submit button
  77. * the code does the stuff in local.inc.php and then redirects to index.php or user_portal.php depending
  78. * on api_get_setting('page_after_login').
  79. */
  80. if (!empty($_POST['submitAuth'])) {
  81. // The user has been already authenticated, we are now to find the last login of the user.
  82. if (isset ($_user['user_id'])) {
  83. $sql_last_login = "SELECT UNIX_TIMESTAMP(login_date)
  84. FROM $track_login_table
  85. WHERE login_user_id = '".$_user['user_id']."'
  86. ORDER BY login_date DESC LIMIT 1";
  87. $result_last_login = Database::query($sql_last_login);
  88. if (!$result_last_login) {
  89. if (Database::num_rows($result_last_login) > 0) {
  90. $user_last_login_datetime = Database::fetch_array($result_last_login);
  91. $user_last_login_datetime = $user_last_login_datetime[0];
  92. api_session_register('user_last_login_datetime');
  93. }
  94. }
  95. Database::free_result($result_last_login);
  96. //event_login();
  97. if (api_is_platform_admin()) {
  98. // decode all open event informations and fill the track_c_* tables
  99. include api_get_path(LIBRARY_PATH).'stats.lib.inc.php';
  100. decodeOpenInfos();
  101. }
  102. }
  103. } // End login -- if ($_POST['submitAuth'])
  104. else {
  105. // Only if login form was not sent because if the form is sent the user was already on the page.
  106. event_open();
  107. }
  108. // The header.
  109. /*$header_title = get_lang('Homepage');
  110. //$sitename = api_get_setting('siteName');
  111. if (!api_get_user_id()) {
  112. $header_title = null;
  113. }*/
  114. $header_title = null;
  115. if (!api_is_anonymous()) {
  116. $header_title = " ";
  117. }
  118. Display::display_header($header_title);
  119. /* MAIN CODE */
  120. echo '<div class="maincontent" id="content">';
  121. // Plugins for loginpage_main AND campushomepage_main.
  122. if (!api_get_user_id()) {
  123. api_plugin('loginpage_main');
  124. } else {
  125. api_plugin('campushomepage_main');
  126. }
  127. $home = 'home/';
  128. if ($_configuration['multiple_access_urls']) {
  129. $access_url_id = api_get_current_access_url_id();
  130. if ($access_url_id != -1){
  131. $url_info = api_get_access_url($access_url_id);
  132. $url = api_remove_trailing_slash(preg_replace('/https?:\/\//i', '', $url_info['url']));
  133. $clean_url = replace_dangerous_char($url);
  134. $clean_url = str_replace('/', '-', $clean_url);
  135. $clean_url .= '/';
  136. $home_old = 'home/';
  137. $home = 'home/'.$clean_url;
  138. }
  139. }
  140. // Including the page for the news
  141. $page_included = false;
  142. if (!empty($_GET['include']) && preg_match('/^[a-zA-Z0-9_-]*\.html$/', $_GET['include'])) {
  143. $open = @(string)file_get_contents(api_get_path(SYS_PATH).$home.$_GET['include']);
  144. $open = api_to_system_encoding($open, api_detect_encoding(strip_tags($open)));
  145. echo $open;
  146. $page_included = true;
  147. } else {
  148. if (!empty($_SESSION['user_language_choice'])) {
  149. $user_selected_language = $_SESSION['user_language_choice'];
  150. } elseif (!empty($_SESSION['_user']['language'])) {
  151. $user_selected_language = $_SESSION['_user']['language'];
  152. } else {
  153. $user_selected_language = api_get_setting('platformLanguage');
  154. }
  155. if (!file_exists($home.'home_news_'.$user_selected_language.'.html')) {
  156. if (file_exists($home.'home_top.html')) {
  157. $home_top_temp = file($home.'home_top.html');
  158. } else {
  159. $home_top_temp = file($home_old.'home_top.html');
  160. }
  161. $home_top_temp = implode('', $home_top_temp);
  162. } else {
  163. if (file_exists($home.'home_top_'.$user_selected_language.'.html')) {
  164. $home_top_temp = file_get_contents($home.'home_top_'.$user_selected_language.'.html');
  165. } else {
  166. $home_top_temp = file_get_contents($home.'home_top.html');
  167. }
  168. }
  169. if (trim($home_top_temp) == '' && api_is_platform_admin()) {
  170. $home_top_temp = get_lang('PortalHomepageDefaultIntroduction');
  171. }
  172. $open = str_replace('{rel_path}', api_get_path(REL_PATH), $home_top_temp);
  173. $open = api_to_system_encoding($open, api_detect_encoding(strip_tags($open)));
  174. echo $open;
  175. }
  176. // Display courses and category list.
  177. if (!$page_included) {
  178. // Display System announcements
  179. $announcement = isset($_GET['announcement']) ? $_GET['announcement'] : -1;
  180. $announcement = intval($announcement);
  181. if (isset($_user['user_id'])) {
  182. $visibility = api_is_allowed_to_create_course() ? VISIBLE_TEACHER : VISIBLE_STUDENT;
  183. SystemAnnouncementManager :: display_announcements($visibility, $announcement);
  184. } else {
  185. SystemAnnouncementManager :: display_announcements(VISIBLE_GUEST, $announcement);
  186. }
  187. if (api_get_setting('display_categories_on_homepage') == 'true') {
  188. echo '<div class="home_cats">';
  189. display_anonymous_course_list();
  190. echo '</div>';
  191. }
  192. }
  193. echo '</div>';
  194. echo '<div id="menu-wrapper">';
  195. if (!api_is_anonymous()) {
  196. // @todo move all this in a class/function
  197. //Always show the user image
  198. $img_array = UserManager::get_user_picture_path_by_id(api_get_user_id(), 'web', true, true);
  199. $no_image = false;
  200. if ($img_array['file'] == 'unknown.jpg') {
  201. $no_image = true;
  202. }
  203. $img_array = UserManager::get_picture_user(api_get_user_id(), $img_array['file'], 50, USER_IMAGE_SIZE_MEDIUM, ' width="90" height="90" ');
  204. $profile_content .='<div id="social_widget">';
  205. $profile_content .= '<div id="social_widget_image">';
  206. if (api_get_setting('allow_social_tool') == 'true') {
  207. if (!$no_image) {
  208. $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/social/home.php"><img src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
  209. } else {
  210. $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/auth/profile.php"><img title="'.get_lang('EditProfile').'" src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
  211. }
  212. } else {
  213. $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/auth/profile.php"><img title="'.get_lang('EditProfile').'" src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
  214. }
  215. $profile_content .= ' </div></div>';
  216. if (api_get_setting('allow_message_tool') == 'true') {
  217. require_once api_get_path(LIBRARY_PATH).'message.lib.php';
  218. require_once api_get_path(LIBRARY_PATH).'social.lib.php';
  219. require_once api_get_path(LIBRARY_PATH).'group_portal_manager.lib.php';
  220. // New messages.
  221. $number_of_new_messages = MessageManager::get_new_messages();
  222. // New contact invitations.
  223. $number_of_new_messages_of_friend = SocialManager::get_message_number_invitation_by_user_id(api_get_user_id());
  224. // New group invitations sent by a moderator.
  225. $group_pending_invitations = GroupPortalManager::get_groups_by_user(api_get_user_id(), GROUP_USER_PERMISSION_PENDING_INVITATION, false);
  226. $group_pending_invitations = count($group_pending_invitations);
  227. $total_invitations = $number_of_new_messages_of_friend + $group_pending_invitations;
  228. $cant_msg = '';
  229. if ($number_of_new_messages > 0) {
  230. $cant_msg = ' ('.$number_of_new_messages.')';
  231. }
  232. $profile_content .= '<div class="clear"></div>';
  233. $profile_content .= '<div class="message-content"><ul class="menulist">';
  234. $link = '';
  235. if (api_get_setting('allow_social_tool') == 'true') {
  236. $link = '?f=social';
  237. }
  238. $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/messages/inbox.php'.$link.'" class="message-body">'.get_lang('Inbox').$cant_msg.' </a></li>';
  239. $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/messages/new_message.php'.$link.'" class="message-body">'.get_lang('Compose').' </a></li>';
  240. if (api_get_setting('allow_social_tool') == 'true') {
  241. if ($total_invitations == 0) {
  242. $total_invitations = '';
  243. } else {
  244. $total_invitations = ' ('.$total_invitations.')';
  245. }
  246. $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/social/invitations.php" class="message-body">'.get_lang('PendingInvitations').' '.$total_invitations.' </a></li>';
  247. }
  248. $profile_content .= '</ul>';
  249. $profile_content .= '</div>';
  250. }
  251. //Profile content
  252. echo show_right_block(get_lang('Profile'), $profile_content);
  253. }
  254. // Display right menu: language form, login section + useful weblinks.
  255. display_anonymous_right_menu();
  256. echo '</div>';
  257. /* Footer */
  258. Display :: display_footer();
  259. /* Functions */
  260. /**
  261. * This function handles the logout and is called whenever there is a $_GET['logout']
  262. *
  263. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  264. */
  265. function logout() {
  266. global $_configuration, $extAuthSource;
  267. // Variable initialisation.
  268. $query_string = '';
  269. if (!empty($_SESSION['user_language_choice'])) {
  270. $query_string = '?language='.$_SESSION['user_language_choice'];
  271. }
  272. // Database table definition.
  273. $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  274. // Selecting the last login of the user.
  275. $uid = intval($_GET['uid']);
  276. $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";
  277. $q_last_connection = Database::query($sql_last_connection);
  278. if (Database::num_rows($q_last_connection) > 0) {
  279. $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
  280. }
  281. if (!isset($_SESSION['login_as'])) {
  282. $current_date = date('Y-m-d H:i:s', time());
  283. $s_sql_update_logout_date = "UPDATE $tbl_track_login SET logout_date='".$current_date."' WHERE login_id='$i_id_last_connection'";
  284. Database::query($s_sql_update_logout_date);
  285. }
  286. LoginDelete($uid); // From inc/lib/online.inc.php - removes the "online" status.
  287. // The following code enables the use of an external logout function.
  288. // Example: define a $extAuthSource['ldap']['logout'] = 'file.php' in configuration.php.
  289. // Then a function called ldap_logout() inside that file
  290. // (using *authent_name*_logout as the function name) and the following code
  291. // will find and execute it.
  292. $uinfo = api_get_user_info($uid);
  293. if (($uinfo['auth_source'] != PLATFORM_AUTH_SOURCE) && is_array($extAuthSource)) {
  294. if (is_array($extAuthSource[$uinfo['auth_source']])) {
  295. $subarray = $extAuthSource[$uinfo['auth_source']];
  296. if (!empty($subarray['logout']) && file_exists($subarray['logout'])) {
  297. include_once ($subarray['logout']);
  298. $logout_function = $uinfo['auth_source'].'_logout';
  299. if (function_exists($logout_function)) {
  300. $logout_function($uinfo);
  301. }
  302. }
  303. }
  304. }
  305. exit_of_chat($uid);
  306. api_session_destroy();
  307. header("Location: index.php$query_string");
  308. exit();
  309. }
  310. /**
  311. * This function checks if there are courses that are open to the world in the platform course categories (=faculties)
  312. *
  313. * @param unknown_type $category
  314. * @return boolean
  315. */
  316. function category_has_open_courses($category) {
  317. global $setting_show_also_closed_courses;
  318. $user_identified = (api_get_user_id() > 0 && !api_is_anonymous());
  319. $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
  320. $sql_query = "SELECT * FROM $main_course_table WHERE category_code='$category'";
  321. $sql_result = Database::query($sql_query);
  322. while ($course = Database::fetch_array($sql_result)) {
  323. if (!$setting_show_also_closed_courses) {
  324. if ((api_get_user_id() > 0
  325. && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
  326. || ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)) {
  327. return true; //at least one open course
  328. }
  329. } else {
  330. if (isset($course['visibility'])) {
  331. return true; // At least one course (it does not matter weither it's open or not because $setting_show_also_closed_courses = true).
  332. }
  333. }
  334. }
  335. return false;
  336. }
  337. /**
  338. * Display create course link
  339. */
  340. function display_create_course_link() {
  341. echo '<li><a href="main/create_course/add_course.php">'.
  342. (api_get_setting('course_validation') == 'true' ? get_lang('CreateCourseRequest') : get_lang('CourseCreate')).'</a></li>';
  343. }
  344. /**
  345. * Display edit course list links
  346. */
  347. function display_edit_course_list_links() {
  348. echo '<li><a href="main/auth/courses.php">'.get_lang('CourseManagement').'</a></li>';
  349. }
  350. /**
  351. * Display dashboard link
  352. */
  353. function display_dashboard_link() {
  354. echo '<li><a href="main/dashboard/index.php">'.get_lang('Dashboard').'</a></li>';
  355. }
  356. /**
  357. * Displays the right-hand menu for anonymous users:
  358. * login form, useful links, help section
  359. * Warning: function defines globals
  360. * @version 1.0.1
  361. * @todo does $_plugins need to be global?
  362. */
  363. function display_anonymous_right_menu() {
  364. global $loginFailed, $_plugins, $_user, $menu_navigation, $home, $home_old;
  365. $platformLanguage = api_get_setting('platformLanguage');
  366. $sys_path = api_get_path(SYS_PATH);
  367. $user_selected_language = api_get_interface_language();
  368. echo '<div class="menu" id="menu">';
  369. if (!($_user['user_id']) || api_is_anonymous($_user['user_id']) ) { // Only display if the user isn't logged in.
  370. api_display_language_form(true);
  371. echo '<br />';
  372. display_login_form();
  373. if ($loginFailed) {
  374. echo '<br />';
  375. handle_login_failed();
  376. }
  377. if (api_get_setting('allow_lostpassword') == 'true' || api_get_setting('allow_registration') == 'true') {
  378. echo '<div class="menusection"><span class="menusectioncaption">'.get_lang('MenuUser').'</span><ul class="menulist">';
  379. if (api_get_setting('allow_registration') != 'false') {
  380. echo '<li><a href="main/auth/inscription.php">'.get_lang('Reg').'</a></li>';
  381. }
  382. if (api_get_setting('allow_lostpassword') == 'true') {
  383. display_lost_password_info();
  384. }
  385. echo '</ul></div>';
  386. }
  387. if (api_number_of_plugins('loginpage_menu') > 0) {
  388. echo '<div class="note" style="background: none">';
  389. api_plugin('loginpage_menu');
  390. echo '</div>';
  391. }
  392. }
  393. // My Account section.
  394. if (isset($_SESSION['_user']['user_id']) && $_SESSION['_user']['user_id'] != 0) {
  395. // tabs that are deactivated are added here
  396. $show_menu = false;
  397. $show_create_link = false;
  398. $show_course_link = false;
  399. $display_add_course_link = api_is_allowed_to_create_course() && ($_SESSION['studentview'] != 'studentenview');
  400. if ($display_add_course_link) {
  401. //display_create_course_link();
  402. $show_menu = true;
  403. $show_create_link = true;
  404. }
  405. if (api_is_platform_admin() || api_is_course_admin() || api_is_allowed_to_create_course()) {
  406. $show_menu = true;
  407. $show_course_link = true;
  408. } else {
  409. if (api_get_setting('allow_students_to_browse_courses') == 'true') {
  410. $show_menu = true;
  411. $show_course_link = true;
  412. }
  413. }
  414. if ($show_menu) {
  415. echo '<div class="menusection">';
  416. echo '<span class="menusectioncaption">'.get_lang('MenuUser').'</span>';
  417. echo '<ul class="menulist">';
  418. if ($show_create_link) {
  419. display_create_course_link();
  420. }
  421. if ($show_course_link) {
  422. if (!api_is_drh() && !api_is_session_admin()) {
  423. display_edit_course_list_links();
  424. } else {
  425. display_dashboard_link();
  426. }
  427. }
  428. echo '</ul></div>';
  429. }
  430. }
  431. echo '</div>';
  432. // Notice
  433. $home_notice = @(string)file_get_contents($sys_path.$home.'home_notice_'.$user_selected_language.'.html');
  434. if (empty($home_notice)) {
  435. $home_notice = @(string)file_get_contents($sys_path.$home.'home_notice.html');
  436. }
  437. if (!empty($home_notice)) {
  438. $home_notice = api_to_system_encoding($home_notice, api_detect_encoding(strip_tags($home_notice)));
  439. echo show_right_block('', $home_notice, 'note');
  440. }
  441. if (isset($_SESSION['_user']['user_id']) && $_SESSION['_user']['user_id'] != 0) {
  442. // Deleting the myprofile link.
  443. if (api_get_setting('allow_social_tool') == 'true') {
  444. unset($menu_navigation['myprofile']);
  445. }
  446. if (!empty($menu_navigation)) {
  447. $content = '<ul class="menulist">';
  448. foreach ($menu_navigation as $section => $navigation_info) {
  449. $current = $section == $GLOBALS['this_section'] ? ' id="current"' : '';
  450. $content .='<li'.$current.'><a href="'.$navigation_info['url'].'" target="_self">'.$navigation_info['title'].'</a></li>';
  451. }
  452. $content .= '</ul>';
  453. echo show_right_block(get_lang('MainNavigation'), $content);
  454. }
  455. }
  456. // Help section.
  457. /* Hide right menu "general" and other parts on anonymous right menu. */
  458. if (!isset($user_selected_language)) {
  459. $user_selected_language = $platformLanguage;
  460. }
  461. $home_menu = @(string)file_get_contents($sys_path.$home.'home_menu_'.$user_selected_language.'.html');
  462. if (!empty($home_menu)) {
  463. $home_menu_content .= '<ul class="menulist">';
  464. $home_menu_content .= api_to_system_encoding($home_menu, api_detect_encoding(strip_tags($home_menu)));
  465. $home_menu_content .= '</ul>';
  466. echo show_right_block(get_lang('MenuGeneral'), $home_menu_content);
  467. }
  468. //Plugin
  469. if ($_user['user_id'] && api_number_of_plugins('campushomepage_menu') > 0) {
  470. ob_start();
  471. api_plugin('campushomepage_menu');
  472. $plugin_content = ob_get_contents();
  473. ob_end_clean();
  474. echo show_right_block('', $plugin_content);
  475. }
  476. }
  477. /**
  478. * Reacts on a failed login:
  479. * Displays an explanation with a link to the registration form.
  480. *
  481. * @version 1.0.1
  482. */
  483. function handle_login_failed() {
  484. if (!isset($_GET['error'])) {
  485. $message = get_lang('InvalidId');
  486. if (api_is_self_registration_allowed()) {
  487. $message = get_lang('InvalidForSelfRegistration');
  488. }
  489. } else {
  490. switch ($_GET['error']) {
  491. case '':
  492. $message = get_lang('InvalidId');
  493. if (api_is_self_registration_allowed()) {
  494. $message = get_lang('InvalidForSelfRegistration');
  495. }
  496. break;
  497. case 'account_expired':
  498. $message = get_lang('AccountExpired');
  499. break;
  500. case 'account_inactive':
  501. $message = get_lang('AccountInactive');
  502. break;
  503. case 'user_password_incorrect':
  504. $message = get_lang('InvalidId');
  505. break;
  506. case 'access_url_inactive':
  507. $message = get_lang('AccountURLInactive');
  508. break;
  509. }
  510. }
  511. echo '<div id="login_fail">'.$message.'</div>';
  512. }
  513. /**
  514. * Adds a form to let users login
  515. * @version 1.1
  516. */
  517. function display_login_form() {
  518. $form = new FormValidator('formLogin');
  519. $form->addElement('text', 'login', get_lang('UserName'), array('size' => 17));
  520. $form->addElement('password', 'password', get_lang('Pass'), array('size' => 17));
  521. $form->addElement('style_submit_button','submitAuth', get_lang('LoginEnter'), array('class' => 'login'));
  522. $renderer =& $form->defaultRenderer();
  523. $renderer->setElementTemplate('<div><label>{label}</label></div><div>{element}</div>');
  524. $form->display();
  525. if (api_get_setting('openid_authentication') == 'true') {
  526. include_once 'main/auth/openid/login.php';
  527. echo '<div>'.openid_form().'</div>';
  528. }
  529. }
  530. /**
  531. * Displays a link to the lost password section
  532. */
  533. function display_lost_password_info() {
  534. echo '<li><a href="main/auth/lostPassword.php">'.get_lang('LostPassword').'</a></li>';
  535. }
  536. /**
  537. * Display list of courses in a category.
  538. * (for anonymous users)
  539. *
  540. * @version 1.1
  541. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University - refactoring and code cleaning
  542. */
  543. function display_anonymous_course_list() {
  544. $ctok = $_SESSION['sec_token'];
  545. $stok = Security::get_token();
  546. // Initialization.
  547. $user_identified = (api_get_user_id() > 0 && !api_is_anonymous());
  548. $web_course_path = api_get_path(WEB_COURSE_PATH);
  549. $category = Database::escape_string($_GET['category']);
  550. global $setting_show_also_closed_courses;
  551. // Database table definitions.
  552. $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
  553. $main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
  554. $platformLanguage = api_get_setting('platformLanguage');
  555. // Get list of courses in category $category.
  556. $sql_get_course_list = "SELECT * FROM $main_course_table cours
  557. WHERE category_code = '".Database::escape_string($_GET['category'])."'
  558. ORDER BY title, UPPER(visual_code)";
  559. // Showing only the courses of the current access_url_id.
  560. global $_configuration;
  561. if ($_configuration['multiple_access_urls']) {
  562. $url_access_id = api_get_current_access_url_id();
  563. if ($url_access_id != -1) {
  564. $tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  565. $sql_get_course_list = "SELECT * FROM $main_course_table as course INNER JOIN $tbl_url_rel_course as url_rel_course
  566. ON (url_rel_course.course_code=course.code)
  567. WHERE access_url_id = $url_access_id AND category_code = '".Database::escape_string($_GET['category'])."' ORDER BY title, UPPER(visual_code)";
  568. }
  569. }
  570. // Removed: AND cours.visibility='".COURSE_VISIBILITY_OPEN_WORLD."'
  571. $sql_result_courses = Database::query($sql_get_course_list);
  572. while ($course_result = Database::fetch_array($sql_result_courses)) {
  573. $course_list[] = $course_result;
  574. }
  575. $platform_visible_courses = '';
  576. // $setting_show_also_closed_courses
  577. if ($user_identified) {
  578. if ($setting_show_also_closed_courses) {
  579. $platform_visible_courses = '';
  580. } else {
  581. $platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' OR t3.visibility='".COURSE_VISIBILITY_OPEN_PLATFORM."' )";
  582. }
  583. } else {
  584. if ($setting_show_also_closed_courses) {
  585. $platform_visible_courses = '';
  586. } else {
  587. $platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' )";
  588. }
  589. }
  590. $sqlGetSubCatList = "
  591. SELECT t1.name,t1.code,t1.parent_id,t1.children_count,COUNT(DISTINCT t3.code) AS nbCourse
  592. FROM $main_category_table t1
  593. LEFT JOIN $main_category_table t2 ON t1.code=t2.parent_id
  594. LEFT JOIN $main_course_table t3 ON (t3.category_code=t1.code $platform_visible_courses)
  595. WHERE t1.parent_id ". (empty ($category) ? "IS NULL" : "='$category'")."
  596. GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos, t1.name";
  597. // Showing only the category of courses of the current access_url_id.
  598. global $_configuration;
  599. if ($_configuration['multiple_access_urls']) {
  600. $url_access_id = api_get_current_access_url_id();
  601. if ($url_access_id != -1) {
  602. $tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  603. $sqlGetSubCatList = "
  604. SELECT t1.name,t1.code,t1.parent_id,t1.children_count,COUNT(DISTINCT t3.code) AS nbCourse
  605. FROM $main_category_table t1
  606. LEFT JOIN $main_category_table t2 ON t1.code=t2.parent_id
  607. LEFT JOIN $main_course_table t3 ON (t3.category_code=t1.code $platform_visible_courses)
  608. INNER JOIN $tbl_url_rel_course as url_rel_course
  609. ON (url_rel_course.course_code=t3.code)
  610. WHERE access_url_id = $url_access_id AND t1.parent_id ".(empty($category) ? "IS NULL" : "='$category'")."
  611. GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos, t1.name";
  612. }
  613. }
  614. $resCats = Database::query($sqlGetSubCatList);
  615. $thereIsSubCat = false;
  616. if (Database::num_rows($resCats) > 0) {
  617. $htmlListCat = '<h4 style="margin-top: 0px;">'.get_lang('CatList').'</h4><ul>';
  618. while ($catLine = Database::fetch_array($resCats)) {
  619. if ($catLine['code'] != $category) {
  620. $category_has_open_courses = category_has_open_courses($catLine['code']);
  621. if ($category_has_open_courses) {
  622. // The category contains courses accessible to anonymous visitors.
  623. $htmlListCat .= '<li>';
  624. $htmlListCat .= '<a href="'.api_get_self().'?category='.$catLine['code'].'">'.$catLine['name'].'</a>';
  625. if (api_get_setting('show_number_of_courses') == 'true') {
  626. $htmlListCat .= ' ('.$catLine['nbCourse'].' '.get_lang('Courses').')';
  627. }
  628. $htmlListCat .= "</li>\n";
  629. $thereIsSubCat = true;
  630. } elseif ($catLine['children_count'] > 0) {
  631. // The category has children, subcategories.
  632. $htmlListCat .= '<li>';
  633. $htmlListCat .= '<a href="'.api_get_self().'?category='.$catLine['code'].'">'.$catLine['name'].'</a>';
  634. $htmlListCat .= "</li>\n";
  635. $thereIsSubCat = true;
  636. }
  637. /* End changed code to eliminate the (0 courses) after empty categories. */
  638. elseif (api_get_setting('show_empty_course_categories') == 'true') {
  639. $htmlListCat .= '<li>';
  640. $htmlListCat .= $catLine['name'];
  641. $htmlListCat .= "</li>\n";
  642. $thereIsSubCat = true;
  643. } // Else don't set thereIsSubCat to true to avoid printing things if not requested.
  644. } else {
  645. $htmlTitre = '<p>';
  646. if (api_get_setting('show_back_link_on_top_of_tree') == 'true') {
  647. $htmlTitre .= '<a href="'.api_get_self().'">&lt;&lt; '.get_lang('BackToHomePage').'</a>';
  648. }
  649. if (!is_null($catLine['parent_id']) || (api_get_setting('show_back_link_on_top_of_tree') != 'true' && !is_null($catLine['code']))) {
  650. $htmlTitre .= '<a href="'.api_get_self().'?category='.$catLine['parent_id'].'">&lt;&lt; '.get_lang('Up').'</a>';
  651. }
  652. $htmlTitre .= "</p>\n";
  653. if ($category != "" && !is_null($catLine['code'])) {
  654. $htmlTitre .= '<h3>'.$catLine['name']."</h3>\n";
  655. } else {
  656. $htmlTitre .= '<h3>'.get_lang('Categories')."</h3>\n";
  657. }
  658. }
  659. }
  660. $htmlListCat .= "</ul>\n";
  661. }
  662. echo $htmlTitre;
  663. if ($thereIsSubCat) {
  664. echo $htmlListCat;
  665. }
  666. while ($categoryName = Database::fetch_array($resCats)) {
  667. echo '<h3>', $categoryName['name'], "</h3>\n";
  668. }
  669. $numrows = Database::num_rows($sql_result_courses);
  670. $courses_list_string = '';
  671. $courses_shown = 0;
  672. if ($numrows > 0) {
  673. if ($thereIsSubCat) {
  674. $courses_list_string .= "<hr size=\"1\" noshade=\"noshade\">\n";
  675. }
  676. $courses_list_string .= '<h4 style="margin-top: 0px;">'.get_lang('CourseList')."</h4>\n<ul>\n";
  677. if (api_get_user_id()) {
  678. $courses_of_user = get_courses_of_user(api_get_user_id());
  679. }
  680. foreach ($course_list as $course) {
  681. // $setting_show_also_closed_courses
  682. if (!$setting_show_also_closed_courses) {
  683. // If we do not show the closed courses
  684. // we only show the courses that are open to the world (to everybody)
  685. // and the courses that are open to the platform (if the current user is a registered user.
  686. if( ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM) || ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)) {
  687. $courses_shown++;
  688. $courses_list_string .= "<li>\n";
  689. $courses_list_string .= '<a href="'.$web_course_path.$course['directory'].'/">'.$course['title'].'</a><br />';
  690. if (api_get_setting('display_coursecode_in_courselist') == 'true') {
  691. $courses_list_string .= $course['visual_code'];
  692. }
  693. if (api_get_setting('display_coursecode_in_courselist') == 'true' && api_get_setting('display_teacher_in_courselist') == 'true') {
  694. $courses_list_string .= ' - ';
  695. }
  696. if (api_get_setting('display_teacher_in_courselist') == 'true') {
  697. $courses_list_string .= $course['tutor_name'];
  698. }
  699. if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
  700. $courses_list_string .= ' - '.$course['course_language'];
  701. }
  702. $courses_list_string .= "</li>\n";
  703. }
  704. }
  705. // We DO show the closed courses.
  706. // The course is accessible if (link to the course homepage):
  707. // 1. the course is open to the world (doesn't matter if the user is logged in or not): $course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD);
  708. // 2. the user is logged in and the course is open to the world or open to the platform: ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM);
  709. // 3. the user is logged in and the user is subscribed to the course and the course visibility is not COURSE_VISIBILITY_CLOSED;
  710. // 4. the user is logged in and the user is course admin of te course (regardless of the course visibility setting);
  711. // 5. the user is the platform admin api_is_platform_admin().
  712. //
  713. else {
  714. $courses_shown++;
  715. $courses_list_string .= "<li>\n";
  716. if ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
  717. || ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
  718. || ($user_identified && key_exists($course['code'], $courses_of_user) && $course['visibility'] != COURSE_VISIBILITY_CLOSED)
  719. || $courses_of_user[$course['code']]['status'] == '1'
  720. || api_is_platform_admin()) {
  721. $courses_list_string .= '<a href="'.$web_course_path.$course['directory'].'/">';
  722. }
  723. $courses_list_string .= $course['title'];
  724. if ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
  725. || ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
  726. || ($user_identified && key_exists($course['code'], $courses_of_user) && $course['visibility'] != COURSE_VISIBILITY_CLOSED)
  727. || $courses_of_user[$course['code']]['status'] == '1'
  728. || api_is_platform_admin()) {
  729. $courses_list_string .= '</a><br />';
  730. }
  731. if (api_get_setting('display_coursecode_in_courselist') == 'true') {
  732. $courses_list_string .= ' '.$course['visual_code'];
  733. }
  734. if (api_get_setting('display_coursecode_in_courselist') == 'true' && api_get_setting('display_teacher_in_courselist') == 'true') {
  735. $courses_list_string .= ' - ';
  736. }
  737. if (api_get_setting('display_teacher_in_courselist') == 'true') {
  738. $courses_list_string .= $course['tutor_name'];
  739. }
  740. if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
  741. $courses_list_string .= ' - '.$course['course_language'];
  742. }
  743. if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
  744. $courses_list_string .= ' - '.$course['course_language'];
  745. }
  746. // We display a subscription link if:
  747. // 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
  748. // 2.
  749. if ($user_identified && !key_exists($course['code'], $courses_of_user)) {
  750. if ($course['subscribe'] == '1') {
  751. $courses_list_string .= '<form action="main/auth/courses.php?action=subscribe&category='.Security::remove_XSS($_GET['category']).'" method="post">';
  752. $courses_list_string .= '<input type="hidden" name="sec_token" value="'.$stok.'">';
  753. $courses_list_string .= '<input type="hidden" name="subscribe" value="'.$course['code'].'" />';
  754. $courses_list_string .= '<input type="image" name="unsub" src="main/img/enroll.gif" alt="'.get_lang('Subscribe').'" />'.get_lang('Subscribe').'</form>';
  755. } else {
  756. $courses_list_string .= '<br />'.get_lang('SubscribingNotAllowed');
  757. }
  758. }
  759. $courses_list_string .= "</li>\n";
  760. }
  761. }
  762. $courses_list_string .= "</ul>\n";
  763. } else {
  764. //echo '<blockquote>', get_lang('_No_course_publicly_available'), "</blockquote>\n";
  765. }
  766. if ($courses_shown > 0) { // Only display the list of courses and categories if there was more than
  767. // 0 courses visible to the world (we're in the anonymous list here).
  768. echo $courses_list_string;
  769. }
  770. if ($category != '') {
  771. echo '<p><a href="'.api_get_self().'"> ', Display :: return_icon('back.png', get_lang('BackToHomePage')), get_lang('BackToHomePage'), '</a></p>', "\n";
  772. }
  773. }
  774. /**
  775. * retrieves all the courses that the user has already subscribed to
  776. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, Belgium
  777. * @param int $user_id: the id of the user
  778. * @return array an array containing all the information of the courses of the given user
  779. */
  780. function get_courses_of_user($user_id) {
  781. $table_course = Database::get_main_table(TABLE_MAIN_COURSE);
  782. $table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  783. // Secondly we select the courses that are in a category (user_course_cat <> 0) and sort these according to the sort of the category
  784. $user_id = intval($user_id);
  785. $sql_select_courses = "SELECT course.code k, course.visual_code vc, course.subscribe subscr, course.unsubscribe unsubscr,
  786. course.title i, course.tutor_name t, course.db_name db, course.directory dir, course_rel_user.status status,
  787. course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
  788. FROM $table_course course,
  789. $table_course_user course_rel_user
  790. WHERE course.code = course_rel_user.course_code
  791. AND course_rel_user.user_id = '".$user_id."'
  792. AND course_rel_user.relation_type<>".COURSE_RELATION_TYPE_RRHH."
  793. ORDER BY course_rel_user.sort ASC";
  794. $result = Database::query($sql_select_courses);
  795. $courses = array();
  796. while ($row = Database::fetch_array($result)) {
  797. // We only need the database name of the course.
  798. $courses[$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']);
  799. }
  800. return $courses;
  801. }
  802. function show_right_block($title, $content, $class = '') {
  803. $html = '';
  804. $html.= '<div id="menu" class="menu">';
  805. $html.= '<div class="menusection '.$class.' ">';
  806. if (!empty($title)) {
  807. $html.= '<span class="menusectioncaption">'.$title.'</span>';
  808. }
  809. $html.= $content;
  810. $html.= '</div>';
  811. $html.= '</div>';
  812. return $html;
  813. }