index.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * Moodle frontpage.
  20  *
  21  * @package    core
  22  * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26     if (!file_exists('./config.php')) {
  27         header('Location: install.php');
  28         die;
  29     }
  30
  31     require_once('config.php');
  32     require_once($CFG->dirroot .'/course/lib.php');
  33     require_once($CFG->libdir .'/filelib.php');
  34
  35     redirect_if_major_upgrade_required();
  36
  37     if ($CFG->forcelogin) {
  38         require_login();
  39     } else {
  40         user_accesstime_log();
  41     }
  42
  43     $PAGE->set_url('/');
  44     $PAGE->set_course($SITE);
  45
  46 /// If the site is currently under maintenance, then print a message
  47     if (!empty($CFG->maintenance_enabled) and !has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
  48         print_maintenance_message();
  49     }
  50
  51     if (has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
  52         if (moodle_needs_upgrading()) {
  53             redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
  54         }
  55     } else if (get_home_page() != HOMEPAGE_SITE) {
  56         // Redirect logged-in users to My Moodle overview if required
  57         if (optional_param('setdefaulthome', false, PARAM_BOOL)) {
  58             set_user_preference('user_home_page_preference', HOMEPAGE_SITE);
  59         } else if ($CFG->defaulthomepage == HOMEPAGE_MY && optional_param('redirect', true, PARAM_BOOL)) {
  60             redirect($CFG->wwwroot .'/my/');
  61         } else if (!empty($CFG->defaulthomepage) && $CFG->defaulthomepage == HOMEPAGE_USER) {
  62             $PAGE->settingsnav->get('usercurrentsettings')->add(get_string('makethismyhome'), new moodle_url('/', array('setdefaulthome'=>true)), navigation_node::TYPE_SETTING);
  63         }
  64     }
  65
  66     if (isloggedin()) {
  67         add_to_log(SITEID, 'course', 'view', 'view.php?id='.SITEID, SITEID);
  68     }
  69
  70 /// If the hub plugin is installed then we let it take over the homepage here
  71     if (get_config('local_hub', 'hubenabled') && file_exists($CFG->dirroot.'/local/hub/lib.php')) {
  72         require_once($CFG->dirroot.'/local/hub/lib.php');
  73         $hub = new local_hub();
  74         $continue = $hub->display_homepage();
  75         //display_homepage() return true if the hub home page is not displayed
  76         //mostly when search form is not displayed for not logged users
  77         if (empty($continue)) {
  78             exit;
  79         }
  80     }
  81
  82     $PAGE->set_pagetype('site-index');
  83     $PAGE->set_other_editing_capability('moodle/course:manageactivities');
  84     $PAGE->set_docs_path('');
  85     $PAGE->set_pagelayout('frontpage');
  86     $editing = $PAGE->user_is_editing();
  87     $PAGE->set_title($SITE->fullname);
  88     $PAGE->set_heading($SITE->fullname);
  89     echo $OUTPUT->header();
  90
  91     //TODO: remove this notice once admins know they need to switch CVS and git branches, the reason is once we start changing DB there will not be any way back!
  92     echo $OUTPUT->box('WARNING: this site is using 2.1dev codebase, please make sure this is is not a production server!!!', 'errorbox');
  93
  94 /// Print Section
  95     if ($SITE->numsections > 0) {
  96
  97         if (!$section = $DB->get_record('course_sections', array('course'=>$SITE->id, 'section'=>1))) {
  98             $DB->delete_records('course_sections', array('course'=>$SITE->id, 'section'=>1)); // Just in case
  99             $section->course = $SITE->id;
 100             $section->section = 1;
 101             $section->summary = '';
 102             $section->summaryformat = FORMAT_HTML;
 103             $section->sequence = '';
 104             $section->visible = 1;
 105             $section->id = $DB->insert_record('course_sections', $section);
 106         }
 107
 108         if (!empty($section->sequence) or !empty($section->summary) or $editing) {
 109             echo $OUTPUT->box_start('generalbox sitetopic');
 110
 111             /// If currently moving a file then show the current clipboard
 112             if (ismoving($SITE->id)) {
 113                 $stractivityclipboard = strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));
 114                 echo '<p><font size="2">';
 115                 echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true&amp;sesskey=".sesskey()."\">". get_string('cancel') .'</a>)';
 116                 echo '</font></p>';
 117             }
 118
 119             $context = get_context_instance(CONTEXT_COURSE, SITEID);
 120             $summarytext = file_rewrite_pluginfile_urls($section->summary, 'pluginfile.php', $context->id, 'course', 'section', $section->id);
 121             $summaryformatoptions = new stdClass();
 122             $summaryformatoptions->noclean = true;
 123             $summaryformatoptions->overflowdiv = true;
 124
 125             echo format_text($summarytext, $section->summaryformat, $summaryformatoptions);
 126
 127             if ($editing) {
 128                 $streditsummary = get_string('editsummary');
 129                 echo "<a title=\"$streditsummary\" ".
 130                      " href=\"course/editsection.php?id=$section->id\"><img src=\"" . $OUTPUT->pix_url('t/edit') . "\" ".
 131                      " class=\"iconsmall\" alt=\"$streditsummary\" /></a><br /><br />";
 132             }
 133
 134             get_all_mods($SITE->id, $mods, $modnames, $modnamesplural, $modnamesused);
 135             print_section($SITE, $section, $mods, $modnamesused, true);
 136
 137             if ($editing) {
 138                 print_section_add_menus($SITE, $section->section, $modnames);
 139             }
 140             echo $OUTPUT->box_end();
 141         }
 142     }
 143
 144     if (isloggedin() and !isguestuser() and isset($CFG->frontpageloggedin)) {
 145         $frontpagelayout = $CFG->frontpageloggedin;
 146     } else {
 147         $frontpagelayout = $CFG->frontpage;
 148     }
 149
 150     foreach (explode(',',$frontpagelayout) as $v) {
 151         switch ($v) {     /// Display the main part of the front page.
 152             case FRONTPAGENEWS:
 153                 if ($SITE->newsitems) { // Print forums only when needed
 154                     require_once($CFG->dirroot .'/mod/forum/lib.php');
 155
 156                     if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {
 157                         print_error('cannotfindorcreateforum', 'forum');
 158                     }
 159                     echo html_writer::tag('a', get_string('skipa', 'access', moodle_strtolower($newsforum->name)), array('href'=>'#skipsitenews', 'class'=>'skip-block'));
 160
 161                     if (isloggedin()) {
 162                         $SESSION->fromdiscussion = $CFG->wwwroot;
 163                         $subtext = '';
 164                         if (forum_is_subscribed($USER->id, $newsforum)) {
 165                             if (!forum_is_forcesubscribed($newsforum)) {
 166                                 $subtext = get_string('unsubscribe', 'forum');
 167                             }
 168                         } else {
 169                             $subtext = get_string('subscribe', 'forum');
 170                         }
 171                         echo $OUTPUT->heading($newsforum->name, 2, 'headingblock header');
 172                         $suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $newsforum->id, 'sesskey' => sesskey()));
 173                         echo html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));
 174                     } else {
 175                         echo $OUTPUT->heading($newsforum->name, 2, 'headingblock header');
 176                     }
 177
 178                     forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');
 179                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipsitenews'));
 180                 }
 181             break;
 182
 183             case FRONTPAGECOURSELIST:
 184                 if (isloggedin() and !has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM)) and !isguestuser() and empty($CFG->disablemycourses)) {
 185                     echo html_writer::tag('a', get_string('skipa', 'access', moodle_strtolower(get_string('mycourses'))), array('href'=>'#skipmycourses', 'class'=>'skip-block'));
 186                     echo $OUTPUT->heading(get_string('mycourses'), 2, 'headingblock header');
 187                     print_my_moodle();
 188                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipmycourses'));
 189                 } else if ((!has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM)) and !isguestuser()) or ($DB->count_records('course') <= FRONTPAGECOURSELIMIT)) {
 190                     // admin should not see list of courses when there are too many of them
 191                     echo html_writer::tag('a', get_string('skipa', 'access', moodle_strtolower(get_string('availablecourses'))), array('href'=>'#skipavailablecourses', 'class'=>'skip-block'));
 192                     echo $OUTPUT->heading(get_string('availablecourses'), 2, 'headingblock header');
 193                     print_courses(0);
 194                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipavailablecourses'));
 195                 }
 196             break;
 197
 198             case FRONTPAGECATEGORYNAMES:
 199                 echo html_writer::tag('a', get_string('skipa', 'access', moodle_strtolower(get_string('categories'))), array('href'=>'#skipcategories', 'class'=>'skip-block'));
 200                 echo $OUTPUT->heading(get_string('categories'), 2, 'headingblock header');
 201                 echo $OUTPUT->box_start('generalbox categorybox');
 202                 print_whole_category_list(NULL, NULL, NULL, -1, false);
 203                 echo $OUTPUT->box_end();
 204                 print_course_search('', false, 'short');
 205                 echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipcategories'));
 206             break;
 207
 208             case FRONTPAGECATEGORYCOMBO:
 209                 echo html_writer::tag('a', get_string('skipa', 'access', moodle_strtolower(get_string('courses'))), array('href'=>'#skipcourses', 'class'=>'skip-block'));
 210                 echo $OUTPUT->heading(get_string('courses'), 2, 'headingblock header');
 211                 $renderer = $PAGE->get_renderer('core','course');
 212                 // if there are too many courses, budiling course category tree could be slow,
 213                 // users should go to course index page to see the whole list.
 214                 $coursecount = $DB->count_records('course');
 215                 if (empty($CFG->numcoursesincombo)) {
 216                     // if $CFG->numcoursesincombo hasn't been set, use default value 500
 217                     $CFG->numcoursesincombo = 500;
 218                 }
 219                 if ($coursecount > $CFG->numcoursesincombo) {
 220                     $link = new moodle_url('/course/');
 221                     echo $OUTPUT->notification(get_string('maxnumcoursesincombo', 'moodle', array('link'=>$link->out(), 'maxnumofcourses'=>$CFG->numcoursesincombo, 'numberofcourses'=>$coursecount)));
 222                 } else {
 223                     echo $renderer->course_category_tree(get_course_category_tree());
 224                 }
 225                 print_course_search('', false, 'short');
 226                 echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipcourses'));
 227             break;
 228
 229             case FRONTPAGETOPICONLY:    // Do nothing!!  :-)
 230             break;
 231
 232         }
 233         echo '<br />';
 234     }
 235
 236     echo $OUTPUT->footer();