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         $frontpagenode = $PAGE->settingsnav->find('frontpage', null);
  75         if ($frontpagenode) {
  76             $frontpagenode->add(
  77                 get_string('makethismyhome'),
  78                 new moodle_url('/', array('setdefaulthome' => true)),
  79                 navigation_node::TYPE_SETTING);
  80         } else {
  81             $frontpagenode = $PAGE->settingsnav->add(get_string('frontpagesettings'), null, navigation_node::TYPE_SETTING, null);
  82             $frontpagenode->force_open();
  83             $frontpagenode->add(get_string('makethismyhome'),
  84                 new moodle_url('/', array('setdefaulthome' => true)),
  85                 navigation_node::TYPE_SETTING);
  86         }
  87     }
  88 }
  89
  90 // Trigger event.
  91 course_view(context_course::instance(SITEID));
  92
  93 // If the hub plugin is installed then we let it take over the homepage here.
  94 if (file_exists($CFG->dirroot.'/local/hub/lib.php') and get_config('local_hub', 'hubenabled')) {
  95     require_once($CFG->dirroot.'/local/hub/lib.php');
  96     $hub = new local_hub();
  97     $continue = $hub->display_homepage();
  98     // Function display_homepage() returns true if the hub home page is not displayed
  99     // ...mostly when search form is not displayed for not logged users.
 100     if (empty($continue)) {
 101         exit;
 102     }
 103 }
 104
 105 $PAGE->set_pagetype('site-index');
 106 $PAGE->set_docs_path('');
 107 $PAGE->set_pagelayout('frontpage');
 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         $context = context_course::instance(SITEID);
 146
 147         // If the section name is set we show it.
 148         if (!is_null($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\"><img src=\"" . $OUTPUT->pix_url('t/edit') . "\" ".
 172                  " class=\"iconsmall\" alt=\"$streditsummary\" /></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 foreach (explode(',', $frontpagelayout) as $v) {
 192     switch ($v) {
 193         // Display the main part of the front page.
 194         case FRONTPAGENEWS:
 195             if ($SITE->newsitems) {
 196                 // Print forums only when needed.
 197                 require_once($CFG->dirroot .'/mod/forum/lib.php');
 198
 199                 if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {
 200                     print_error('cannotfindorcreateforum', 'forum');
 201                 }
 202
 203                 // Fetch news forum context for proper filtering to happen.
 204                 $newsforumcm = get_coursemodule_from_instance('forum', $newsforum->id, $SITE->id, false, MUST_EXIST);
 205                 $newsforumcontext = context_module::instance($newsforumcm->id, MUST_EXIST);
 206
 207                 $forumname = format_string($newsforum->name, true, array('context' => $newsforumcontext));
 208                 echo html_writer::link('#skipsitenews',
 209                     get_string('skipa', 'access', core_text::strtolower(strip_tags($forumname))),
 210                     array('class' => 'skip-block skip'));
 211
 212                 // Wraps site news forum in div container.
 213                 echo html_writer::start_tag('div', array('id' => 'site-news-forum'));
 214
 215                 if (isloggedin()) {
 216                     $SESSION->fromdiscussion = $CFG->wwwroot;
 217                     $subtext = '';
 218                     if (\mod_forum\subscriptions::is_subscribed($USER->id, $newsforum)) {
 219                         if (!\mod_forum\subscriptions::is_forcesubscribed($newsforum)) {
 220                             $subtext = get_string('unsubscribe', 'forum');
 221                         }
 222                     } else {
 223                         $subtext = get_string('subscribe', 'forum');
 224                     }
 225                     echo $OUTPUT->heading($forumname);
 226                     $suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $newsforum->id, 'sesskey' => sesskey()));
 227                     echo html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));
 228                 } else {
 229                     echo $OUTPUT->heading($forumname);
 230                 }
 231
 232                 forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');
 233
 234                 // End site news forum div container.
 235                 echo html_writer::end_tag('div');
 236
 237                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipsitenews'));
 238             }
 239         break;
 240
 241         case FRONTPAGEENROLLEDCOURSELIST:
 242             $mycourseshtml = $courserenderer->frontpage_my_courses();
 243             if (!empty($mycourseshtml)) {
 244                 echo html_writer::link('#skipmycourses',
 245                     get_string('skipa', 'access', core_text::strtolower(get_string('mycourses'))),
 246                     array('class' => 'skip skip-block'));
 247
 248                 // Wrap frontpage course list in div container.
 249                 echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));
 250
 251                 echo $OUTPUT->heading(get_string('mycourses'));
 252                 echo $mycourseshtml;
 253
 254                 // End frontpage course list div container.
 255                 echo html_writer::end_tag('div');
 256
 257                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipmycourses'));
 258                 break;
 259             }
 260             // No "break" here. If there are no enrolled courses - continue to 'Available courses'.
 261
 262         case FRONTPAGEALLCOURSELIST:
 263             $availablecourseshtml = $courserenderer->frontpage_available_courses();
 264             if (!empty($availablecourseshtml)) {
 265                 echo html_writer::link('#skipavailablecourses',
 266                     get_string('skipa', 'access', core_text::strtolower(get_string('availablecourses'))),
 267                     array('class' => 'skip skip-block'));
 268
 269                 // Wrap frontpage course list in div container.
 270                 echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));
 271
 272                 echo $OUTPUT->heading(get_string('availablecourses'));
 273                 echo $availablecourseshtml;
 274
 275                 // End frontpage course list div container.
 276                 echo html_writer::end_tag('div');
 277
 278                 echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipavailablecourses'));
 279             }
 280         break;
 281
 282         case FRONTPAGECATEGORYNAMES:
 283             echo html_writer::link('#skipcategories',
 284                 get_string('skipa', 'access', core_text::strtolower(get_string('categories'))),
 285                 array('class' => 'skip skip-block'));
 286
 287             // Wrap frontpage category names in div container.
 288             echo html_writer::start_tag('div', array('id' => 'frontpage-category-names'));
 289
 290             echo $OUTPUT->heading(get_string('categories'));
 291             echo $courserenderer->frontpage_categories_list();
 292
 293             // End frontpage category names div container.
 294             echo html_writer::end_tag('div');
 295
 296             echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcategories'));
 297         break;
 298
 299         case FRONTPAGECATEGORYCOMBO:
 300             echo html_writer::link('#skipcourses',
 301                 get_string('skipa', 'access', core_text::strtolower(get_string('courses'))),
 302                 array('class' => 'skip skip-block'));
 303
 304             // Wrap frontpage category combo in div container.
 305             echo html_writer::start_tag('div', array('id' => 'frontpage-category-combo'));
 306
 307             echo $OUTPUT->heading(get_string('courses'));
 308             echo $courserenderer->frontpage_combo_list();
 309
 310             // End frontpage category combo div container.
 311             echo html_writer::end_tag('div');
 312
 313             echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcourses'));
 314         break;
 315
 316         case FRONTPAGECOURSESEARCH:
 317             echo $OUTPUT->box($courserenderer->course_search_form('', 'short'), 'mdl-align');
 318         break;
 319
 320     }
 321     echo '<br />';
 322 }
 323 if ($editing && has_capability('moodle/course:create', context_system::instance())) {
 324     echo $courserenderer->add_new_course_button();
 325 }
 326 echo $OUTPUT->footer();