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_pagelayout('frontpage');
  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 $PAGE->set_cacheable(false);
  48
  49 require_course_login($SITE);
  50
  51 $hasmaintenanceaccess = has_capability('moodle/site:maintenanceaccess', context_system::instance());
  52
  53 // If the site is currently under maintenance, then print a message.
  54 if (!empty($CFG->maintenance_enabled) and !$hasmaintenanceaccess) {
  55     print_maintenance_message();
  56 }
  57
  58 $hassiteconfig = has_capability('moodle/site:config', context_system::instance());
  59
  60 if ($hassiteconfig && moodle_needs_upgrading()) {
  61     redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
  62 }
  63
  64 // If site registration needs updating, redirect.
  65 \core\hub\registration::registration_reminder('/index.php');
  66
  67 if (get_home_page() != HOMEPAGE_SITE) {
  68     // Redirect logged-in users to My Moodle overview if required.
  69     $redirect = optional_param('redirect', 1, PARAM_BOOL);
  70     if (optional_param('setdefaulthome', false, PARAM_BOOL)) {
  71         set_user_preference('user_home_page_preference', HOMEPAGE_SITE);
  72     } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && $redirect === 1) {
  73         redirect($CFG->wwwroot .'/my/');
  74     } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_USER)) {
  75         $frontpagenode = $PAGE->settingsnav->find('frontpage', null);
  76         if ($frontpagenode) {
  77             $frontpagenode->add(
  78                 get_string('makethismyhome'),
  79                 new moodle_url('/', array('setdefaulthome' => true)),
  80                 navigation_node::TYPE_SETTING);
  81         } else {
  82             $frontpagenode = $PAGE->settingsnav->add(get_string('frontpagesettings'), null, navigation_node::TYPE_SETTING, null);
  83             $frontpagenode->force_open();
  84             $frontpagenode->add(get_string('makethismyhome'),
  85                 new moodle_url('/', array('setdefaulthome' => true)),
  86                 navigation_node::TYPE_SETTING);
  87         }
  88     }
  89 }
  90
  91 // Trigger event.
  92 course_view(context_course::instance(SITEID));
  93
  94 // If the hub plugin is installed then we let it take over the homepage here.
  95 if (file_exists($CFG->dirroot.'/local/hub/lib.php') and get_config('local_hub', 'hubenabled')) {
  96     require_once($CFG->dirroot.'/local/hub/lib.php');
  97     $hub = new local_hub();
  98     $continue = $hub->display_homepage();
  99     // Function display_homepage() returns true if the hub home page is not displayed
 100     // ...mostly when search form is not displayed for not logged users.
 101     if (empty($continue)) {
 102         exit;
 103     }
 104 }
 105
 106 $PAGE->set_pagetype('site-index');
 107 $PAGE->set_docs_path('');
 108 $editing = $PAGE->user_is_editing();
 109 $PAGE->set_title($SITE->fullname);
 110 $PAGE->set_heading($SITE->fullname);
 111 $courserenderer = $PAGE->get_renderer('core', 'course');
 112 echo $OUTPUT->header();
 113
 114 // Print Section or custom info.
 115 $siteformatoptions = course_get_format($SITE)->get_format_options();
 116 $modinfo = get_fast_modinfo($SITE);
 117 $modnames = get_module_types_names();
 118 $modnamesplural = get_module_types_names(true);
 119 $modnamesused = $modinfo->get_used_module_names();
 120 $mods = $modinfo->get_cms();
 121
 122 if (!empty($CFG->customfrontpageinclude)) {
 123     include($CFG->customfrontpageinclude);
 124
 125 } else if ($siteformatoptions['numsections'] > 0) {
 126     if ($editing) {
 127         // Make sure section with number 1 exists.
 128         course_create_sections_if_missing($SITE, 1);
 129         // Re-request modinfo in case section was created.
 130         $modinfo = get_fast_modinfo($SITE);
 131     }
 132     $section = $modinfo->get_section_info(1);
 133     if (($section && (!empty($modinfo->sections[1]) or !empty($section->summary))) or $editing) {
 134         echo $OUTPUT->box_start('generalbox sitetopic');
 135
 136         // If currently moving a file then show the current clipboard.
 137         if (ismoving($SITE->id)) {
 138             $stractivityclipboard = strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));
 139             echo '<p><font size="2">';
 140             echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true&amp;sesskey=".sesskey()."\">";
 141             echo get_string('cancel') . '</a>)';
 142             echo '</font></p>';
 143         }
 144
 145         $context = context_course::instance(SITEID);
 146
 147         // If the section name is set we show it.
 148         if (trim($section->name) !== '') {
 149             echo $OUTPUT->heading(
 150                 format_string($section->name, true, array('context' => $context)),
 151                 2,
 152                 'sectionname'
 153             );
 154         }
 155
 156         $summarytext = file_rewrite_pluginfile_urls($section->summary,
 157             'pluginfile.php',
 158             $context->id,
 159             'course',
 160             'section',
 161             $section->id);
 162         $summaryformatoptions = new stdClass();
 163         $summaryformatoptions->noclean = true;
 164         $summaryformatoptions->overflowdiv = true;
 165
 166         echo format_text($summarytext, $section->summaryformat, $summaryformatoptions);
 167
 168         if ($editing && has_capability('moodle/course:update', $context)) {
 169             $streditsummary = get_string('editsummary');
 170             echo "<a title=\"$streditsummary\" " .
 171                  " href=\"course/editsection.php?id=$section->id\">" . $OUTPUT->pix_icon('t/edit', $streditsummary) .
 172                  "</a><br /><br />";
 173         }
 174
 175         $courserenderer = $PAGE->get_renderer('core', 'course');
 176         echo $courserenderer->course_section_cm_list($SITE, $section);
 177
 178         echo $courserenderer->course_section_add_cm_control($SITE, $section->section);
 179         echo $OUTPUT->box_end();
 180     }
 181 }
 182 // Include course AJAX.
 183 include_course_ajax($SITE, $modnamesused);
 184
 185 if (isloggedin() and !isguestuser() and isset($CFG->frontpageloggedin)) {
 186     $frontpagelayout = $CFG->frontpageloggedin;
 187 } else {
 188     $frontpagelayout = $CFG->frontpage;
 189 }
 190
 191 $frontpageoptions = explode(',', $frontpagelayout);
 192 foreach ($frontpageoptions as $v) {
 193     switch ($v) {
 194         // Display the main part of the front page.
 195         case FRONTPAGENEWS:
 196             if ($SITE->newsitems) {
 197                 // Print forums only when needed.
 198                 require_once($CFG->dirroot .'/mod/forum/lib.php');
 199
 200                 if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {
 201                     print_error('cannotfindorcreateforum', 'forum');
 202                 }
 203
 204                 // Fetch news forum context for proper filtering to happen.
 205                 $newsforumcm = get_coursemodule_from_instance('forum', $newsforum->id, $SITE->id, false, MUST_EXIST);
 206                 $newsforumcontext = context_module::instance($newsforumcm->id, MUST_EXIST);
 207
 208                 $forumname = format_string($newsforum->name, true, array('context' => $newsforumcontext));
 209                 echo html_writer::link('#skipsitenews',
 210                     get_string('skipa', 'access', core_text::strtolower(strip_tags($forumname))),
 211                     array('class' => 'skip-block skip'));
 212
 213                 // Wraps site news forum in div container.
 214                 echo html_writer::start_tag('div', array('id' => 'site-news-forum'));
 215
 216                 if (isloggedin()) {
 217                     $SESSION->fromdiscussion = $CFG->wwwroot;
 218                     $subtext = '';
 219                     if (\mod_forum\subscriptions::is_subscribed($USER->id, $newsforum)) {
 220                         if (!\mod_forum\subscriptions::is_forcesubscribed($newsforum)) {
 221                             $subtext = get_string('unsubscribe', 'forum');
 222                         }
 223                     } else {
 224                         $subtext = get_string('subscribe', 'forum');
 225                     }
 226                     echo $OUTPUT->heading($forumname);
 227                     $suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $newsforum->id, 'sesskey' => sesskey()));
 228                     echo html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));
 229                 } else {
 230                     echo $OUTPUT->heading($forumname);
 231                 }
 232
 233                 forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');
 234
 235                 // End site news forum div container.
 236                 echo html_writer::end_tag('div');
 237
 238                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipsitenews'));
 239             }
 240         break;
 241
 242         case FRONTPAGEENROLLEDCOURSELIST:
 243             $mycourseshtml = $courserenderer->frontpage_my_courses();
 244             if (!empty($mycourseshtml)) {
 245                 echo html_writer::link('#skipmycourses',
 246                     get_string('skipa', 'access', core_text::strtolower(get_string('mycourses'))),
 247                     array('class' => 'skip skip-block'));
 248
 249                 // Wrap frontpage course list in div container.
 250                 echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));
 251
 252                 echo $OUTPUT->heading(get_string('mycourses'));
 253                 echo $mycourseshtml;
 254
 255                 // End frontpage course list div container.
 256                 echo html_writer::end_tag('div');
 257
 258                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipmycourses'));
 259                 break;
 260             } else {
 261                 // Temp fix/fallback in order to display available courses when enrolled courses should be shown,
 262                 // but user is not enrolled in any course.
 263                 if (array_search(FRONTPAGEALLCOURSELIST, $frontpageoptions)) {
 264                     break;
 265                 }
 266             }
 267
 268         case FRONTPAGEALLCOURSELIST:
 269             $availablecourseshtml = $courserenderer->frontpage_available_courses();
 270             if (!empty($availablecourseshtml)) {
 271                 echo html_writer::link('#skipavailablecourses',
 272                     get_string('skipa', 'access', core_text::strtolower(get_string('availablecourses'))),
 273                     array('class' => 'skip skip-block'));
 274
 275                 // Wrap frontpage course list in div container.
 276                 echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));
 277
 278                 echo $OUTPUT->heading(get_string('availablecourses'));
 279                 echo $availablecourseshtml;
 280
 281                 // End frontpage course list div container.
 282                 echo html_writer::end_tag('div');
 283
 284                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipavailablecourses'));
 285             }
 286         break;
 287
 288         case FRONTPAGECATEGORYNAMES:
 289             echo html_writer::link('#skipcategories',
 290                 get_string('skipa', 'access', core_text::strtolower(get_string('categories'))),
 291                 array('class' => 'skip skip-block'));
 292
 293             // Wrap frontpage category names in div container.
 294             echo html_writer::start_tag('div', array('id' => 'frontpage-category-names'));
 295
 296             echo $OUTPUT->heading(get_string('categories'));
 297             echo $courserenderer->frontpage_categories_list();
 298
 299             // End frontpage category names div container.
 300             echo html_writer::end_tag('div');
 301
 302             echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcategories'));
 303         break;
 304
 305         case FRONTPAGECATEGORYCOMBO:
 306             echo html_writer::link('#skipcourses',
 307                 get_string('skipa', 'access', core_text::strtolower(get_string('courses'))),
 308                 array('class' => 'skip skip-block'));
 309
 310             // Wrap frontpage category combo in div container.
 311             echo html_writer::start_tag('div', array('id' => 'frontpage-category-combo'));
 312
 313             echo $OUTPUT->heading(get_string('courses'));
 314             echo $courserenderer->frontpage_combo_list();
 315
 316             // End frontpage category combo div container.
 317             echo html_writer::end_tag('div');
 318
 319             echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcourses'));
 320         break;
 321
 322         case FRONTPAGECOURSESEARCH:
 323             echo $OUTPUT->box($courserenderer->course_search_form('', 'short'), 'mdl-align');
 324         break;
 325
 326     }
 327     echo '<br />';
 328 }
 329 if ($editing && has_capability('moodle/course:create', context_system::instance())) {
 330     echo $courserenderer->add_new_course_button();
 331 }
 332 echo $OUTPUT->footer();