index.php

   1 <?php  // $Id$
   2        // index.php - the front page.
   3
   4 ///////////////////////////////////////////////////////////////////////////
   5 //                                                                       //
   6 // NOTICE OF COPYRIGHT                                                   //
   7 //                                                                       //
   8 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   9 //          http://moodle.org                                            //
  10 //                                                                       //
  11 // Copyright (C) 1999 onwards  Martin Dougiamas  http://moodle.com       //
  12 //                                                                       //
  13 // This program is free software; you can redistribute it and/or modify  //
  14 // it under the terms of the GNU General Public License as published by  //
  15 // the Free Software Foundation; either version 2 of the License, or     //
  16 // (at your option) any later version.                                   //
  17 //                                                                       //
  18 // This program is distributed in the hope that it will be useful,       //
  19 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  20 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  21 // GNU General Public License for more details:                          //
  22 //                                                                       //
  23 //          http://www.gnu.org/copyleft/gpl.html                         //
  24 //                                                                       //
  25 ///////////////////////////////////////////////////////////////////////////
  26
  27
  28     if (!file_exists('./config.php')) {
  29         header('Location: install.php');
  30         die;
  31     }
  32
  33     require_once('config.php');
  34     require_once($CFG->dirroot .'/course/lib.php');
  35     require_once($CFG->dirroot .'/lib/blocklib.php');
  36
  37     if (empty($SITE)) {
  38         redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
  39     }
  40
  41     // Bounds for block widths
  42     // more flexible for theme designers taken from theme config.php
  43     $lmin = (empty($THEME->block_l_min_width)) ? 100 : $THEME->block_l_min_width;
  44     $lmax = (empty($THEME->block_l_max_width)) ? 210 : $THEME->block_l_max_width;
  45     $rmin = (empty($THEME->block_r_min_width)) ? 100 : $THEME->block_r_min_width;
  46     $rmax = (empty($THEME->block_r_max_width)) ? 210 : $THEME->block_r_max_width;
  47
  48     define('BLOCK_L_MIN_WIDTH', $lmin);
  49     define('BLOCK_L_MAX_WIDTH', $lmax);
  50     define('BLOCK_R_MIN_WIDTH', $rmin);
  51     define('BLOCK_R_MAX_WIDTH', $rmax);
  52
  53     // check if major upgrade needed - also present in login/index.php
  54     if ((int)$CFG->version < 2006101100) { //1.7 or older
  55         @require_logout();
  56         redirect("$CFG->wwwroot/$CFG->admin/");
  57     }
  58     // Trigger 1.9 accesslib upgrade?
  59     if ((int)$CFG->version < 2007092000
  60         && isset($USER->id)
  61         && is_siteadmin($USER->id)) { // this test is expensive, but is only triggered during the upgrade
  62         redirect("$CFG->wwwroot/$CFG->admin/");
  63     }
  64
  65     if ($CFG->forcelogin) {
  66         require_login();
  67     }
  68
  69     if ($CFG->rolesactive) { // if already using roles system
  70         if (has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
  71             if (moodle_needs_upgrading()) {
  72                 redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
  73             }
  74         } else if (!empty($CFG->mymoodleredirect)) {    // Redirect logged-in users to My Moodle overview if required
  75             if (isloggedin() && $USER->username != 'guest') {
  76                 redirect($CFG->wwwroot .'/my/index.php');
  77             }
  78         }
  79     } else { // if upgrading from 1.6 or below
  80         if (isadmin() && moodle_needs_upgrading()) {
  81             redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
  82         }
  83     }
  84
  85
  86     if (get_moodle_cookie() == '') {
  87         set_moodle_cookie('nobody');   // To help search for cookies on login page
  88     }
  89
  90     if (!empty($USER->id)) {
  91         add_to_log(SITEID, 'course', 'view', 'view.php?id='.SITEID, SITEID);
  92     }
  93
  94     if (empty($CFG->langmenu)) {
  95         $langmenu = '';
  96     } else {
  97         $currlang = current_language();
  98         $langs = get_list_of_languages();
  99         $langlabel = get_accesshide(get_string('language'));
 100         $langmenu = popup_form($CFG->wwwroot .'/index.php?lang=', $langs, 'chooselang', $currlang, '', '', '', true, 'self', $langlabel);
 101     }
 102
 103     $PAGE       = page_create_object(PAGE_COURSE_VIEW, SITEID);
 104     $pageblocks = blocks_setup($PAGE);
 105     $editing    = $PAGE->user_is_editing();
 106     $preferred_width_left  = bounded_number(BLOCK_L_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]),
 107                                             BLOCK_L_MAX_WIDTH);
 108     $preferred_width_right = bounded_number(BLOCK_R_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_RIGHT]),
 109                                             BLOCK_R_MAX_WIDTH);
 110     print_header($SITE->fullname, $SITE->fullname, 'home', '',
 111                  '<meta name="description" content="'. s(strip_tags($SITE->summary)) .'" />',
 112                  true, '', user_login_string($SITE).$langmenu);
 113
 114 ?>
 115
 116
 117 <table id="layout-table" summary="layout">
 118   <tr>
 119   <?php
 120     $lt = (empty($THEME->layouttable)) ? array('left', 'middle', 'right') : $THEME->layouttable;
 121     foreach ($lt as $column) {
 122         switch ($column) {
 123             case 'left':
 124     if (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $editing) {
 125         echo '<td style="width: '.$preferred_width_left.'px;" id="left-column">';
 126         print_container_start();
 127         blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
 128         print_container_end();
 129         echo '</td>';
 130     }
 131             break;
 132             case 'middle':
 133     echo '<td id="middle-column">'. skip_main_destination();
 134
 135     print_container_start();
 136
 137 /// Print Section
 138     if ($SITE->numsections > 0) {
 139
 140         if (!$section = get_record('course_sections', 'course', $SITE->id, 'section', 1)) {
 141             delete_records('course_sections', 'course', $SITE->id, 'section', 1); // Just in case
 142             $section->course = $SITE->id;
 143             $section->section = 1;
 144             $section->summary = '';
 145             $section->sequence = '';
 146             $section->visible = 1;
 147             $section->id = insert_record('course_sections', $section);
 148         }
 149
 150         if (!empty($section->sequence) or !empty($section->summary) or $editing) {
 151             print_box_start('generalbox sitetopic');
 152
 153             /// If currently moving a file then show the current clipboard
 154             if (ismoving($SITE->id)) {
 155                 $stractivityclipboard = strip_tags(get_string('activityclipboard', '', addslashes($USER->activitycopyname)));
 156                 echo '<p><font size="2">';
 157                 echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true&amp;sesskey=$USER->sesskey\">". get_string('cancel') .'</a>)';
 158                 echo '</font></p>';
 159             }
 160
 161             $options = NULL;
 162             $options->noclean = true;
 163             echo format_text($section->summary, FORMAT_HTML, $options);
 164
 165             if ($editing) {
 166                 $streditsummary = get_string('editsummary');
 167                 echo "<a title=\"$streditsummary\" ".
 168                      " href=\"course/editsection.php?id=$section->id\"><img src=\"$CFG->pixpath/t/edit.gif\" ".
 169                      " class=\"iconsmall\" alt=\"$streditsummary\" /></a><br /><br />";
 170             }
 171
 172             get_all_mods($SITE->id, $mods, $modnames, $modnamesplural, $modnamesused);
 173             print_section($SITE, $section, $mods, $modnamesused, true);
 174
 175             if ($editing) {
 176                 print_section_add_menus($SITE, $section->section, $modnames);
 177             }
 178             print_box_end();
 179         }
 180     }
 181
 182     if (isloggedin() and !isguest() and isset($CFG->frontpageloggedin)) {
 183         $frontpagelayout = $CFG->frontpageloggedin;
 184     } else {
 185         $frontpagelayout = $CFG->frontpage;
 186     }
 187
 188     foreach (explode(',',$frontpagelayout) as $v) {
 189         switch ($v) {     /// Display the main part of the front page.
 190             case FRONTPAGENEWS:
 191                 if ($SITE->newsitems) { // Print forums only when needed
 192                     require_once($CFG->dirroot .'/mod/forum/lib.php');
 193
 194                     if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {
 195                         error('Could not find or create a main news forum for the site');
 196                     }
 197
 198                     if (!empty($USER->id)) {
 199                         $SESSION->fromdiscussion = $CFG->wwwroot;
 200                         if (forum_is_subscribed($USER->id, $newsforum->id)) {
 201                             $subtext = get_string('unsubscribe', 'forum');
 202                         } else {
 203                             $subtext = get_string('subscribe', 'forum');
 204                         }
 205                         print_heading_block($newsforum->name);
 206                         echo '<div class="subscribelink"><a href="mod/forum/subscribe.php?id='.$newsforum->id.'">'.$subtext.'</a></div>';
 207                     } else {
 208                         print_heading_block($newsforum->name);
 209                     }
 210
 211                     forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');
 212                 }
 213             break;
 214
 215             case FRONTPAGECOURSELIST:
 216
 217                 if (isloggedin() and !has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM)) and !isguest() and empty($CFG->disablemycourses)) {
 218                     print_heading_block(get_string('mycourses'));
 219                     print_my_moodle();
 220                 } else if ((!has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM)) and !isguest()) or (count_records('course') <= FRONTPAGECOURSELIMIT)) {
 221                     // admin should not see list of courses when there are too many of them
 222                     print_heading_block(get_string('availablecourses'));
 223                     print_courses(0);
 224                 }
 225             break;
 226
 227             case FRONTPAGECATEGORYNAMES:
 228
 229                 print_heading_block(get_string('categories'));
 230                 print_box_start('generalbox categorybox');
 231                 print_whole_category_list(NULL, NULL, NULL, -1, false);
 232                 print_box_end();
 233                 print_course_search('', false, 'short');
 234             break;
 235
 236             case FRONTPAGECATEGORYCOMBO:
 237
 238                 print_heading_block(get_string('categories'));
 239                 print_box_start('generalbox categorybox');
 240                 print_whole_category_list(NULL, NULL, NULL, -1, true);
 241                 print_box_end();
 242                 print_course_search('', false, 'short');
 243             break;
 244
 245             case FRONTPAGETOPICONLY:    // Do nothing!!  :-)
 246             break;
 247
 248         }
 249         echo '<br />';
 250     }
 251
 252     print_container_end();
 253
 254     echo '</td>';
 255             break;
 256             case 'right':
 257     // The right column
 258     if (blocks_have_content($pageblocks, BLOCK_POS_RIGHT) || $editing || $PAGE->user_allowed_editing()) {
 259         echo '<td style="width: '.$preferred_width_right.'px;" id="right-column">';
 260         print_container_start();
 261         if ($PAGE->user_allowed_editing()) {
 262             echo '<div style="text-align:center">'.update_course_icon($SITE->id).'</div>';
 263             echo '<br />';
 264         }
 265         blocks_print_group($PAGE, $pageblocks, BLOCK_POS_RIGHT);
 266         print_container_end();
 267         echo '</td>';
 268     }
 269             break;
 270         }
 271     }
 272 ?>
 273
 274   </tr>
 275 </table>
 276
 277 <?php
 278     print_footer('home');     // Please do not modify this line
 279 ?>