index.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Moodle frontpage.
  19  *
  20  * @package    core
  21  * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 if (!file_exists('./config.php')) {
  26     header('Location: install.php');
  27     die;
  28 }
  29
  30 require_once('config.php');
  31 require_once($CFG->dirroot .'/course/lib.php');
  32 require_once($CFG->libdir .'/filelib.php');
  33
  34 redirect_if_major_upgrade_required();
  35
  36 $urlparams = array();
  37 if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && optional_param('redirect', 1, PARAM_BOOL) === 0) {
  38     $urlparams['redirect'] = 0;
  39 }
  40 $PAGE->set_url('/', $urlparams);
  41 $PAGE->set_course($SITE);
  42 $PAGE->set_other_editing_capability('moodle/course:update');
  43 $PAGE->set_other_editing_capability('moodle/course:manageactivities');
  44 $PAGE->set_other_editing_capability('moodle/course:activityvisibility');
  45
  46 // Prevent caching of this page to stop confusion when changing page after making AJAX changes.
  47 $PAGE->set_cacheable(false);
  48
  49 if ($CFG->forcelogin) {
  50     require_login();
  51 } else {
  52     user_accesstime_log();
  53 }
  54
  55 $hassiteconfig = has_capability('moodle/site:config', context_system::instance());
  56
  57 // If the site is currently under maintenance, then print a message.
  58 if (!empty($CFG->maintenance_enabled) and !$hassiteconfig) {
  59     print_maintenance_message();
  60 }
  61
  62 if ($hassiteconfig && moodle_needs_upgrading()) {
  63     redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
  64 }
  65
  66 if (get_home_page() != HOMEPAGE_SITE) {
  67     // Redirect logged-in users to My Moodle overview if required.
  68     $redirect = optional_param('redirect', 1, PARAM_BOOL);
  69     if (optional_param('setdefaulthome', false, PARAM_BOOL)) {
  70         set_user_preference('user_home_page_preference', HOMEPAGE_SITE);
  71     } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && $redirect === 1) {
  72         redirect($CFG->wwwroot .'/my/');
  73     } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_USER)) {
  74         $PAGE->settingsnav->get('usercurrentsettings')->add(
  75             get_string('makethismyhome'),
  76             new moodle_url('/', array('setdefaulthome' => true)),
  77             navigation_node::TYPE_SETTING);
  78     }
  79 }
  80
  81 $eventparams = array('context' => context_course::instance(SITEID));
  82 $event = \core\event\course_viewed::create($eventparams);
  83 $event->trigger();
  84
  85 // If the hub plugin is installed then we let it take over the homepage here.
  86 if (file_exists($CFG->dirroot.'/local/hub/lib.php') and get_config('local_hub', 'hubenabled')) {
  87     require_once($CFG->dirroot.'/local/hub/lib.php');
  88     $hub = new local_hub();
  89     $continue = $hub->display_homepage();
  90     // Function display_homepage() returns true if the hub home page is not displayed
  91     // ...mostly when search form is not displayed for not logged users.
  92     if (empty($continue)) {
  93         exit;
  94     }
  95 }
  96
  97 $PAGE->set_pagetype('site-index');
  98 $PAGE->set_docs_path('');
  99 $PAGE->set_pagelayout('frontpage');
 100 $editing = $PAGE->user_is_editing();
 101 $PAGE->set_title($SITE->fullname);
 102 $PAGE->set_heading($SITE->fullname);
 103 $courserenderer = $PAGE->get_renderer('core', 'course');
 104 echo $OUTPUT->header();
 105
 106 // Print Section or custom info.
 107 $siteformatoptions = course_get_format($SITE)->get_format_options();
 108 $modinfo = get_fast_modinfo($SITE);
 109 $modnames = get_module_types_names();
 110 $modnamesplural = get_module_types_names(true);
 111 $modnamesused = $modinfo->get_used_module_names();
 112 $mods = $modinfo->get_cms();
 113
 114 if (!empty($CFG->customfrontpageinclude)) {
 115     include($CFG->customfrontpageinclude);
 116
 117 } else if ($siteformatoptions['numsections'] > 0) {
 118     if ($editing) {
 119         // Make sure section with number 1 exists.
 120         course_create_sections_if_missing($SITE, 1);
 121         // Re-request modinfo in case section was created.
 122         $modinfo = get_fast_modinfo($SITE);
 123     }
 124     $section = $modinfo->get_section_info(1);
 125     if (($section && (!empty($modinfo->sections[1]) or !empty($section->summary))) or $editing) {
 126         echo $OUTPUT->box_start('generalbox sitetopic');
 127
 128         // If currently moving a file then show the current clipboard.
 129         if (ismoving($SITE->id)) {
 130             $stractivityclipboard = strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));
 131             echo '<p><font size="2">';
 132             echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true&amp;sesskey=".sesskey()."\">";
 133             echo get_string('cancel') . '</a>)';
 134             echo '</font></p>';
 135         }
 136
 137         $context = context_course::instance(SITEID);
 138
 139         // If the section name is set we show it.
 140         if (!is_null($section->name)) {
 141             echo $OUTPUT->heading(
 142                 format_string($section->name, true, array('context' => $context)),
 143                 2,
 144                 'sectionname'
 145             );
 146         }
 147
 148         $summarytext = file_rewrite_pluginfile_urls($section->summary,
 149             'pluginfile.php',
 150             $context->id,
 151             'course',
 152             'section',
 153             $section->id);
 154         $summaryformatoptions = new stdClass();
 155         $summaryformatoptions->noclean = true;
 156         $summaryformatoptions->overflowdiv = true;
 157
 158         echo format_text($summarytext, $section->summaryformat, $summaryformatoptions);
 159
 160         if ($editing && has_capability('moodle/course:update', $context)) {
 161             $streditsummary = get_string('editsummary');
 162             echo "<a title=\"$streditsummary\" ".
 163                  " href=\"course/editsection.php?id=$section->id\"><img src=\"" . $OUTPUT->pix_url('t/edit') . "\" ".
 164                  " class=\"iconsmall\" alt=\"$streditsummary\" /></a><br /><br />";
 165         }
 166
 167         $courserenderer = $PAGE->get_renderer('core', 'course');
 168         echo $courserenderer->course_section_cm_list($SITE, $section);
 169
 170         echo $courserenderer->course_section_add_cm_control($SITE, $section->section);
 171         echo $OUTPUT->box_end();
 172     }
 173 }
 174 // Include course AJAX.
 175 include_course_ajax($SITE, $modnamesused);
 176
 177 if (isloggedin() and !isguestuser() and isset($CFG->frontpageloggedin)) {
 178     $frontpagelayout = $CFG->frontpageloggedin;
 179 } else {
 180     $frontpagelayout = $CFG->frontpage;
 181 }
 182
 183 foreach (explode(',', $frontpagelayout) as $v) {
 184     switch ($v) {
 185         // Display the main part of the front page.
 186         case FRONTPAGENEWS:
 187             if ($SITE->newsitems) {
 188                 // Print forums only when needed.
 189                 require_once($CFG->dirroot .'/mod/forum/lib.php');
 190
 191                 if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {
 192                     print_error('cannotfindorcreateforum', 'forum');
 193                 }
 194
 195                 // Fetch news forum context for proper filtering to happen.
 196                 $newsforumcm = get_coursemodule_from_instance('forum', $newsforum->id, $SITE->id, false, MUST_EXIST);
 197                 $newsforumcontext = context_module::instance($newsforumcm->id, MUST_EXIST);
 198
 199                 $forumname = format_string($newsforum->name, true, array('context' => $newsforumcontext));
 200                 echo html_writer::tag('a',
 201                     get_string('skipa', 'access', core_text::strtolower(strip_tags($forumname))),
 202                     array('href' => '#skipsitenews', 'class' => 'skip-block'));
 203
 204                 // Wraps site news forum in div container.
 205                 echo html_writer::start_tag('div', array('id' => 'site-news-forum'));
 206
 207                 if (isloggedin()) {
 208                     $SESSION->fromdiscussion = $CFG->wwwroot;
 209                     $subtext = '';
 210                     if (\mod_forum\subscriptions::is_subscribed($USER->id, $newsforum)) {
 211                         if (!\mod_forum\subscriptions::is_forcesubscribed($newsforum)) {
 212                             $subtext = get_string('unsubscribe', 'forum');
 213                         }
 214                     } else {
 215                         $subtext = get_string('subscribe', 'forum');
 216                     }
 217                     echo $OUTPUT->heading($forumname);
 218                     $suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $newsforum->id, 'sesskey' => sesskey()));
 219                     echo html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));
 220                 } else {
 221                     echo $OUTPUT->heading($forumname);
 222                 }
 223
 224                 forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');
 225
 226                 // End site news forum div container.
 227                 echo html_writer::end_tag('div');
 228
 229                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipsitenews'));
 230             }
 231         break;
 232
 233         case FRONTPAGEENROLLEDCOURSELIST:
 234             $mycourseshtml = $courserenderer->frontpage_my_courses();
 235             if (!empty($mycourseshtml)) {
 236                 echo html_writer::tag('a',
 237                     get_string('skipa', 'access', core_text::strtolower(get_string('mycourses'))),
 238                     array('href' => '#skipmycourses', 'class' => 'skip-block'));
 239
 240                 // Wrap frontpage course list in div container.
 241                 echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));
 242
 243                 echo $OUTPUT->heading(get_string('mycourses'));
 244                 echo $mycourseshtml;
 245
 246                 // End frontpage course list div container.
 247                 echo html_writer::end_tag('div');
 248
 249                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipmycourses'));
 250                 break;
 251             }
 252             // No "break" here. If there are no enrolled courses - continue to 'Available courses'.
 253
 254         case FRONTPAGEALLCOURSELIST:
 255             $availablecourseshtml = $courserenderer->frontpage_available_courses();
 256             if (!empty($availablecourseshtml)) {
 257                 echo html_writer::tag('a',
 258                     get_string('skipa', 'access', core_text::strtolower(get_string('availablecourses'))),
 259                     array('href' => '#skipavailablecourses', 'class' => 'skip-block'));
 260
 261                 // Wrap frontpage course list in div container.
 262                 echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));
 263
 264                 echo $OUTPUT->heading(get_string('availablecourses'));
 265                 echo $availablecourseshtml;
 266
 267                 // End frontpage course list div container.
 268                 echo html_writer::end_tag('div');
 269
 270                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipavailablecourses'));
 271             }
 272         break;
 273
 274         case FRONTPAGECATEGORYNAMES:
 275             echo html_writer::tag('a',
 276                 get_string('skipa', 'access', core_text::strtolower(get_string('categories'))),
 277                 array('href' => '#skipcategories', 'class' => 'skip-block'));
 278
 279             // Wrap frontpage category names in div container.
 280             echo html_writer::start_tag('div', array('id' => 'frontpage-category-names'));
 281
 282             echo $OUTPUT->heading(get_string('categories'));
 283             echo $courserenderer->frontpage_categories_list();
 284
 285             // End frontpage category names div container.
 286             echo html_writer::end_tag('div');
 287
 288             echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcategories'));
 289         break;
 290
 291         case FRONTPAGECATEGORYCOMBO:
 292             echo html_writer::tag('a',
 293                 get_string('skipa', 'access', core_text::strtolower(get_string('courses'))),
 294                 array('href' => '#skipcourses', 'class' => 'skip-block'));
 295
 296             // Wrap frontpage category combo in div container.
 297             echo html_writer::start_tag('div', array('id' => 'frontpage-category-combo'));
 298
 299             echo $OUTPUT->heading(get_string('courses'));
 300             echo $courserenderer->frontpage_combo_list();
 301
 302             // End frontpage category combo div container.
 303             echo html_writer::end_tag('div');
 304
 305             echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcourses'));
 306         break;
 307
 308         case FRONTPAGECOURSESEARCH:
 309             echo $OUTPUT->box($courserenderer->course_search_form('', 'short'), 'mdl-align');
 310         break;
 311
 312     }
 313     echo '<br />';
 314 }
 315 if ($editing && has_capability('moodle/course:create', context_system::instance())) {
 316     echo $courserenderer->add_new_course_button();
 317 }
 318 echo $OUTPUT->footer();