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     $urlparams = array();
  38     if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && optional_param('redirect', 1, PARAM_BOOL) === 0) {
  39         $urlparams['redirect'] = 0;
  40     }
  41     $PAGE->set_url('/', $urlparams);
  42     $PAGE->set_course($SITE);
  43     $PAGE->set_other_editing_capability('moodle/course:update');
  44     $PAGE->set_other_editing_capability('moodle/course:manageactivities');
  45     $PAGE->set_other_editing_capability('moodle/course:activityvisibility');
  46
  47     // Prevent caching of this page to stop confusion when changing page after making AJAX changes
  48     $PAGE->set_cacheable(false);
  49
  50     if ($CFG->forcelogin) {
  51         require_login();
  52     } else {
  53         user_accesstime_log();
  54     }
  55
  56     $hassiteconfig = has_capability('moodle/site:config', context_system::instance());
  57
  58 /// If the site is currently under maintenance, then print a message
  59     if (!empty($CFG->maintenance_enabled) and !$hassiteconfig) {
  60         print_maintenance_message();
  61     }
  62
  63     if ($hassiteconfig && moodle_needs_upgrading()) {
  64         redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
  65     }
  66
  67     if (get_home_page() != HOMEPAGE_SITE) {
  68         // Redirect logged-in users to My Moodle overview if required
  69         if (optional_param('setdefaulthome', false, PARAM_BOOL)) {
  70             set_user_preference('user_home_page_preference', HOMEPAGE_SITE);
  71         } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && optional_param('redirect', 1, PARAM_BOOL) === 1) {
  72             redirect($CFG->wwwroot .'/my/');
  73         } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_USER)) {
  74             $PAGE->settingsnav->get('usercurrentsettings')->add(get_string('makethismyhome'), new moodle_url('/', array('setdefaulthome'=>true)), navigation_node::TYPE_SETTING);
  75         }
  76     }
  77
  78     $eventparams = array('context' => context_course::instance(SITEID));
  79     $event = \core\event\course_viewed::create($eventparams);
  80     $event->trigger();
  81
  82 /// If the hub plugin is installed then we let it take over the homepage here
  83     if (file_exists($CFG->dirroot.'/local/hub/lib.php') and get_config('local_hub', 'hubenabled')) {
  84         require_once($CFG->dirroot.'/local/hub/lib.php');
  85         $hub = new local_hub();
  86         $continue = $hub->display_homepage();
  87         //display_homepage() return true if the hub home page is not displayed
  88         //mostly when search form is not displayed for not logged users
  89         if (empty($continue)) {
  90             exit;
  91         }
  92     }
  93
  94     $PAGE->set_pagetype('site-index');
  95     $PAGE->set_docs_path('');
  96     $PAGE->set_pagelayout('frontpage');
  97     $editing = $PAGE->user_is_editing();
  98     $PAGE->set_title($SITE->fullname);
  99     $PAGE->set_heading($SITE->fullname);
 100     $courserenderer = $PAGE->get_renderer('core', 'course');
 101     echo $OUTPUT->header();
 102
 103 /// Print Section or custom info
 104     $siteformatoptions = course_get_format($SITE)->get_format_options();
 105     $modinfo = get_fast_modinfo($SITE);
 106     $modnames = get_module_types_names();
 107     $modnamesplural = get_module_types_names(true);
 108     $modnamesused = $modinfo->get_used_module_names();
 109     $mods = $modinfo->get_cms();
 110
 111     if (!empty($CFG->customfrontpageinclude)) {
 112         include($CFG->customfrontpageinclude);
 113
 114     } else if ($siteformatoptions['numsections'] > 0) {
 115         if ($editing) {
 116             // make sure section with number 1 exists
 117             course_create_sections_if_missing($SITE, 1);
 118             // re-request modinfo in case section was created
 119             $modinfo = get_fast_modinfo($SITE);
 120         }
 121         $section = $modinfo->get_section_info(1);
 122         if (($section && (!empty($modinfo->sections[1]) or !empty($section->summary))) or $editing) {
 123             echo $OUTPUT->box_start('generalbox sitetopic');
 124
 125             /// If currently moving a file then show the current clipboard
 126             if (ismoving($SITE->id)) {
 127                 $stractivityclipboard = strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));
 128                 echo '<p><font size="2">';
 129                 echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true&amp;sesskey=".sesskey()."\">". get_string('cancel') .'</a>)';
 130                 echo '</font></p>';
 131             }
 132
 133             $context = context_course::instance(SITEID);
 134
 135             // If the section name is set we show it.
 136             if (!is_null($section->name)) {
 137                 echo $OUTPUT->heading(
 138                     format_string($section->name, true, array('context' => $context)),
 139                     2,
 140                     'sectionname'
 141                 );
 142             }
 143
 144             $summarytext = file_rewrite_pluginfile_urls($section->summary, 'pluginfile.php', $context->id, 'course', 'section', $section->id);
 145             $summaryformatoptions = new stdClass();
 146             $summaryformatoptions->noclean = true;
 147             $summaryformatoptions->overflowdiv = true;
 148
 149             echo format_text($summarytext, $section->summaryformat, $summaryformatoptions);
 150
 151             if ($editing && has_capability('moodle/course:update', $context)) {
 152                 $streditsummary = get_string('editsummary');
 153                 echo "<a title=\"$streditsummary\" ".
 154                      " href=\"course/editsection.php?id=$section->id\"><img src=\"" . $OUTPUT->pix_url('t/edit') . "\" ".
 155                      " class=\"iconsmall\" alt=\"$streditsummary\" /></a><br /><br />";
 156             }
 157
 158             $courserenderer = $PAGE->get_renderer('core', 'course');
 159             echo $courserenderer->course_section_cm_list($SITE, $section);
 160
 161             echo $courserenderer->course_section_add_cm_control($SITE, $section->section);
 162             echo $OUTPUT->box_end();
 163         }
 164     }
 165     // Include course AJAX
 166     include_course_ajax($SITE, $modnamesused);
 167
 168     if (isloggedin() and !isguestuser() and isset($CFG->frontpageloggedin)) {
 169         $frontpagelayout = $CFG->frontpageloggedin;
 170     } else {
 171         $frontpagelayout = $CFG->frontpage;
 172     }
 173
 174     foreach (explode(',',$frontpagelayout) as $v) {
 175         switch ($v) {     /// Display the main part of the front page.
 176             case FRONTPAGENEWS:
 177                 if ($SITE->newsitems) { // Print forums only when needed
 178                     require_once($CFG->dirroot .'/mod/forum/lib.php');
 179
 180                     if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {
 181                         print_error('cannotfindorcreateforum', 'forum');
 182                     }
 183
 184                     // fetch news forum context for proper filtering to happen
 185                     $newsforumcm = get_coursemodule_from_instance('forum', $newsforum->id, $SITE->id, false, MUST_EXIST);
 186                     $newsforumcontext = context_module::instance($newsforumcm->id, MUST_EXIST);
 187
 188                     $forumname = format_string($newsforum->name, true, array('context' => $newsforumcontext));
 189                     echo html_writer::tag('a', get_string('skipa', 'access', core_text::strtolower(strip_tags($forumname))), array('href'=>'#skipsitenews', 'class'=>'skip-block'));
 190
 191                     // wraps site news forum in div container.
 192                     echo html_writer::start_tag('div', array('id'=>'site-news-forum'));
 193
 194                     if (isloggedin()) {
 195                         $SESSION->fromdiscussion = $CFG->wwwroot;
 196                         $subtext = '';
 197                         if (\mod_forum\subscriptions::is_subscribed($USER->id, $newsforum)) {
 198                             if (!\mod_forum\subscriptions::is_forcesubscribed($newsforum)) {
 199                                 $subtext = get_string('unsubscribe', 'forum');
 200                             }
 201                         } else {
 202                             $subtext = get_string('subscribe', 'forum');
 203                         }
 204                         echo $OUTPUT->heading($forumname);
 205                         $suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $newsforum->id, 'sesskey' => sesskey()));
 206                         echo html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));
 207                     } else {
 208                         echo $OUTPUT->heading($forumname);
 209                     }
 210
 211                     forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');
 212
 213                     //end site news forum div container
 214                     echo html_writer::end_tag('div');
 215
 216                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipsitenews'));
 217                 }
 218             break;
 219
 220             case FRONTPAGEENROLLEDCOURSELIST:
 221                 $mycourseshtml = $courserenderer->frontpage_my_courses();
 222                 if (!empty($mycourseshtml)) {
 223                     echo html_writer::tag('a', get_string('skipa', 'access', core_text::strtolower(get_string('mycourses'))), array('href'=>'#skipmycourses', 'class'=>'skip-block'));
 224
 225                     //wrap frontpage course list in div container
 226                     echo html_writer::start_tag('div', array('id'=>'frontpage-course-list'));
 227
 228                     echo $OUTPUT->heading(get_string('mycourses'));
 229                     echo $mycourseshtml;
 230
 231                     //end frontpage course list div container
 232                     echo html_writer::end_tag('div');
 233
 234                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipmycourses'));
 235                     break;
 236                 }
 237                 // No "break" here. If there are no enrolled courses - continue to 'Available courses'.
 238
 239             case FRONTPAGEALLCOURSELIST:
 240                 $availablecourseshtml = $courserenderer->frontpage_available_courses();
 241                 if (!empty($availablecourseshtml)) {
 242                     echo html_writer::tag('a', get_string('skipa', 'access', core_text::strtolower(get_string('availablecourses'))), array('href'=>'#skipavailablecourses', 'class'=>'skip-block'));
 243
 244                     //wrap frontpage course list in div container
 245                     echo html_writer::start_tag('div', array('id'=>'frontpage-course-list'));
 246
 247                     echo $OUTPUT->heading(get_string('availablecourses'));
 248                     echo $availablecourseshtml;
 249
 250                     //end frontpage course list div container
 251                     echo html_writer::end_tag('div');
 252
 253                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipavailablecourses'));
 254                 }
 255             break;
 256
 257             case FRONTPAGECATEGORYNAMES:
 258                 echo html_writer::tag('a', get_string('skipa', 'access', core_text::strtolower(get_string('categories'))), array('href'=>'#skipcategories', 'class'=>'skip-block'));
 259
 260                 //wrap frontpage category names in div container
 261                 echo html_writer::start_tag('div', array('id'=>'frontpage-category-names'));
 262
 263                 echo $OUTPUT->heading(get_string('categories'));
 264                 echo $courserenderer->frontpage_categories_list();
 265
 266                 //end frontpage category names div container
 267                 echo html_writer::end_tag('div');
 268
 269                 echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipcategories'));
 270             break;
 271
 272             case FRONTPAGECATEGORYCOMBO:
 273                 echo html_writer::tag('a', get_string('skipa', 'access', core_text::strtolower(get_string('courses'))), array('href'=>'#skipcourses', 'class'=>'skip-block'));
 274
 275                 //wrap frontpage category combo in div container
 276                 echo html_writer::start_tag('div', array('id'=>'frontpage-category-combo'));
 277
 278                 echo $OUTPUT->heading(get_string('courses'));
 279                 echo $courserenderer->frontpage_combo_list();
 280
 281                 //end frontpage category combo div container
 282                 echo html_writer::end_tag('div');
 283
 284                 echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipcourses'));
 285             break;
 286
 287             case FRONTPAGECOURSESEARCH:
 288                 echo $OUTPUT->box($courserenderer->course_search_form('', 'short'), 'mdl-align');
 289             break;
 290
 291         }
 292         echo '<br />';
 293     }
 294     if ($editing && has_capability('moodle/course:create', context_system::instance())) {
 295         echo $courserenderer->add_new_course_button();
 296     }
 297     echo $OUTPUT->footer();