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