include/header.inc.php

   1 <?php
   2 /************************************************************************/
   3 /* ATutor                                                                                                                               */
   4 /************************************************************************/
   5 /* Copyright (c) 2002-2007 by Greg Gay, Joel Kronenberg & Heidi Hazelton*/
   6 /* Adaptive Technology Resource Centre / University of Toronto                  */
   7 /* http://atutor.ca                                                                                                             */
   8 /*                                                                                                                                              */
   9 /* This program is free software. You can redistribute it and/or                */
  10 /* modify it under the terms of the GNU General Public License                  */
  11 /* as published by the Free Software Foundation.                                                */
  12 /************************************************************************/
  13 // $Id$
  14
  15 if (!defined('AT_INCLUDE_PATH')) { exit; }
  16
  17 header('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
  18
  19 global $myLang;
  20 global $savant;
  21 global $onload;
  22 global $content_base_href, $course_base_href;
  23 global $_base_path;
  24 global $cid;
  25 global $contentManager;
  26 global $db;
  27 global $_pages;
  28 global $_stacks;
  29 global $framed, $popup;
  30 global $_custom_css;
  31
  32 require(AT_INCLUDE_PATH . 'lib/menu_pages.php');
  33
  34 $savant->assign('lang_code', $_SESSION['lang']);
  35 $savant->assign('lang_charset', $myLang->getCharacterSet());
  36 $savant->assign('base_path', $_base_path);
  37 $savant->assign('theme', $_SESSION['prefs']['PREF_THEME']);
  38 $savant->assign('current_date', AT_date(_AT('announcement_date_format')));
  39
  40 $theme_img  = $_base_path . 'themes/'. $_SESSION['prefs']['PREF_THEME'] . '/images/';
  41 $savant->assign('img', $theme_img);
  42
  43 $_tmp_base_href = AT_BASE_HREF;
  44 if (isset($course_base_href) || isset($content_base_href)) {
  45         $_tmp_base_href .= $course_base_href;
  46         if ($content_base_href) {
  47                 $_tmp_base_href .= $content_base_href;
  48         }
  49 }
  50
  51 $savant->assign('content_base_href', $_tmp_base_href);
  52 $savant->assign('base_href', AT_BASE_HREF);
  53
  54 if ($myLang->isRTL()) {
  55         $savant->assign('rtl_css', '<link rel="stylesheet" href="'.$_base_path.'themes/'.$_SESSION['prefs']['PREF_THEME'].'/rtl.css" type="text/css" />');
  56 } else {
  57         $savant->assign('rtl_css', '');
  58 }
  59
  60 if (isset($_custom_css)) {
  61         $savant->assign('custom_css', '<link rel="stylesheet" href="'.$_custom_css.'" type="text/css" />');
  62 } else {
  63         $savant->assign('custom_css', '');
  64 }
  65
  66 if ($onload && ($_SESSION['prefs']['PREF_FORM_FOCUS'] || (substr($onload, -8) != 'focus();'))) {
  67         $savant->assign('onload', $onload);
  68 }
  69
  70 if ($_SESSION['valid_user'] === true) {
  71         if ($_SESSION['member_id']) {
  72                 $savant->assign('user_name', get_display_name($_SESSION['member_id']));
  73         } else {
  74                 $savant->assign('user_name', $_SESSION['login']);
  75         }
  76 } else {
  77         $savant->assign('user_name', _AT('guest'));
  78 }
  79
  80 $current_page = substr($_SERVER['PHP_SELF'], strlen($_base_path));
  81
  82 if (!isset($_pages[$current_page])) {
  83         global $msg;
  84         $msg->addError('PAGE_NOT_FOUND'); // probably the wrong error
  85         header('location: '.AT_BASE_HREF.'index.php');
  86         exit;
  87 }
  88
  89 $_top_level_pages        = get_main_navigation($current_page);
  90
  91 $_current_top_level_page = get_current_main_page($current_page);
  92
  93 if (empty($_top_level_pages)) {
  94         if (!$_SESSION['member_id'] && !$_SESSION['course_id']) {
  95                 $_top_level_pages = get_main_navigation($_pages[AT_NAV_PUBLIC][0]);
  96         } else if ($_SESSION['course_id'] < 0) {
  97                 $_top_level_pages = get_main_navigation($_pages[AT_NAV_ADMIN][0]);
  98         } else if (!$_SESSION['course_id']) {
  99                 $_top_level_pages = get_main_navigation($_pages[AT_NAV_START][0]);
 100         } else {
 101                 $_top_level_pages = get_main_navigation($_pages[AT_NAV_COURSE][0]);
 102         }
 103 }
 104 $_sub_level_pages        = get_sub_navigation($current_page);
 105
 106 $_current_sub_level_page = get_current_sub_navigation_page($current_page);
 107
 108 $_path = get_path($current_page);
 109
 110
 111 unset($_path[0]);
 112 if ($_path[2]['url'] == $_sub_level_pages[0]['url']) {
 113         $back_to_page = $_path[3];
 114 } else if ($_path[1]['url'] == $_sub_level_pages[0]['url']) {
 115         $back_to_page = $_path[2];
 116 } else {
 117         $back_to_page = $_path[1];
 118 }
 119
 120 if ($_SESSION['course_id'] > 0) {
 121         $_path[] = array('url' => $_base_path . 'index.php', 'title' => $_SESSION['course_title']);
 122 } else if ($_SESSION['course_id'] < 0) {
 123         $_path[] = array('url' => $_base_path . 'admin/index.php', 'title' => _AT('administration'));
 124 }
 125
 126 if ($_SESSION['member_id']) {
 127         $_path[] = array('url' => $_base_path . 'bounce.php?course=0', 'title' => _AT('my_start_page'));
 128 } else if (!$_SESSION['course_id']) {
 129         $_path[] = array('url' => $_base_path . 'login.php', 'title' => SITE_NAME);
 130 }
 131
 132 $_path = array_reverse($_path);
 133 if (isset($_pages[$current_page]['title'])) {
 134         $_page_title = $_pages[$current_page]['title'];
 135 } else {
 136         $_page_title = _AT($_pages[$current_page]['title_var']);
 137 }
 138
 139
 140
 141 /* calculate the section_title: */
 142 if ($_SESSION['course_id'] > 0) {
 143         $section_title = $_SESSION['course_title'];
 144 } else if (!$_SESSION['valid_user']) {
 145         $section_title = SITE_NAME;
 146         if (defined('HOME_URL') && HOME_URL) {
 147                 $_top_level_pages[] = array('url' => HOME_URL, 'title' => _AT('home'));
 148         }
 149 } else if ($_SESSION['course_id'] < 0) {
 150         $section_title = _AT('administration');
 151 } else if (!$_SESSION['course_id']) {
 152         $section_title = _AT('my_start_page');
 153 }
 154 $savant->assign('current_top_level_page', $_current_top_level_page);
 155 $savant->assign('sub_level_pages', $_sub_level_pages);
 156 $savant->assign('current_sub_level_page', $_current_sub_level_page);
 157
 158 $savant->assign('path', $_path);
 159 $savant->assign('back_to_page', $back_to_page);
 160 $savant->assign('page_title', $_page_title);
 161 $savant->assign('top_level_pages', $_top_level_pages);
 162 $savant->assign('section_title', $section_title);
 163
 164 if (isset($_pages[$current_page]['guide'])) {
 165         $savant->assign('guide', AT_GUIDES_PATH . $_pages[$current_page]['guide']);
 166 }
 167
 168 $myLang->sendContentTypeHeader();
 169
 170 if ($_SESSION['course_id'] > -1) {
 171
 172         /* the list of our courses: */
 173         /* used for the courses drop down */
 174         global $system_courses;
 175         if ($_SESSION['valid_user']) {
 176                 $sql    = "SELECT E.course_id FROM ".TABLE_PREFIX."course_enrollment E WHERE E.member_id=$_SESSION[member_id] AND E.approved<>'n'";
 177                 $result = @mysql_query($sql, $db);
 178
 179                 $nav_courses = array(); /* the list of courses we're enrolled in or own */
 180                 while ($row = @mysql_fetch_assoc($result)) {
 181                         $nav_courses[$row['course_id']] = $system_courses[$row['course_id']]['title'];
 182                 }
 183
 184                 natcasesort($nav_courses);
 185                 reset($nav_courses);
 186                 $savant->assign('nav_courses',    $nav_courses);
 187         }
 188
 189         if (($_SESSION['course_id'] > 0) && isset($_SESSION['prefs'][PREF_JUMP_REDIRECT]) && $_SESSION['prefs'][PREF_JUMP_REDIRECT]) {
 190                 $savant->assign('rel_url', $_rel_url);
 191         } else {
 192                 $savant->assign('rel_url', '');
 193         }
 194
 195         /* course specific elements: */
 196         /* != 'public' special case for the about.php page, which is available from a course but hides the content menu */
 197         $sequence_links = array();
 198         if ($_SESSION['course_id'] > 0) {
 199                 $sequence_links = $contentManager->generateSequenceCrumbs($cid);
 200                 $savant->assign('sequence_links', $sequence_links);
 201         }
 202
 203         //side menu array
 204         if ($_SESSION['course_id'] > 0) {
 205                 $side_menu = array();
 206                 $side_menu = explode('|', $system_courses[$_SESSION['course_id']]['side_menu']);
 207                 $side_menu = array_intersect($side_menu, $_stacks);
 208                 $savant->assign('side_menu', $side_menu);
 209         }
 210 }
 211
 212 /* Register our Errorhandler on everypage */
 213 //require_once(AT_INCLUDE_PATH . 'classes/ErrorHandler/ErrorHandler.class.php');
 214 //$err =& new ErrorHandler();
 215
 216 // if filemanager is a inside a popup or a frame
 217 // i don't like this code. i don't know were these two variables are coming from
 218 // anyone can add ?framed=1 to a URL to alter the behaviour.
 219 if ($_REQUEST['framed'] || $_REQUEST['popup']) {
 220         $savant->assign('framed', 1);
 221         $savant->assign('popup', 1);
 222         $savant->display('include/fm_header.tmpl.php');
 223 } else {
 224         $savant->display('include/header.tmpl.php');
 225 }
 226
 227 ?>