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