<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle. If not, see <http://www.gnu.org/licenses/>.

/**

* Moodle frontpage.

*

* @package core

* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)

* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

*/

if (!file_exists('./config.php')) {

header('Location: install.php');

die;

}

require_once('config.php');

require_once($CFG->dirroot .'/course/lib.php');

require_once($CFG->libdir .'/filelib.php');

redirect_if_major_upgrade_required();

$urlparams = array();

if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && optional_param('redirect', 1, PARAM_BOOL) === 0) {

$urlparams['redirect'] = 0;

}

$PAGE->set_url('/', $urlparams);

$PAGE->set_course($SITE);

$PAGE->set_other_editing_capability('moodle/course:update');

$PAGE->set_other_editing_capability('moodle/course:manageactivities');

$PAGE->set_other_editing_capability('moodle/course:activityvisibility');

// Prevent caching of this page to stop confusion when changing page after making AJAX changes.

$PAGE->set_cacheable(false);

if ($CFG->forcelogin) {

require_login();

} else {

user_accesstime_log();

}

$hassiteconfig = has_capability('moodle/site:config', context_system::instance());

// If the site is currently under maintenance, then print a message.

if (!empty($CFG->maintenance_enabled) and !$hassiteconfig) {

print_maintenance_message();

}

if ($hassiteconfig && moodle_needs_upgrading()) {

redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');

}

if (get_home_page() != HOMEPAGE_SITE) {

// Redirect logged-in users to My Moodle overview if required.

$redirect = optional_param('redirect', 1, PARAM_BOOL);

if (optional_param('setdefaulthome', false, PARAM_BOOL)) {

set_user_preference('user_home_page_preference', HOMEPAGE_SITE);

} else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && $redirect === 1) {

redirect($CFG->wwwroot .'/my/');

} else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_USER)) {

$frontpagenode = $PAGE->settingsnav->find('frontpage', null);

if ($frontpagenode) {

$frontpagenode->add(

get_string('makethismyhome'),

new moodle_url('/', array('setdefaulthome' => true)),

navigation_node::TYPE_SETTING);

} else {

$frontpagenode = $PAGE->settingsnav->add(get_string('frontpagesettings'), null, navigation_node::TYPE_SETTING, null);

$frontpagenode->force_open();

$frontpagenode->add(get_string('makethismyhome'),

new moodle_url('/', array('setdefaulthome' => true)),

navigation_node::TYPE_SETTING);

}

}

}

// Trigger event.

course_view(context_course::instance(SITEID));

// If the hub plugin is installed then we let it take over the homepage here.

if (file_exists($CFG->dirroot.'/local/hub/lib.php') and get_config('local_hub', 'hubenabled')) {

require_once($CFG->dirroot.'/local/hub/lib.php');

$hub = new local_hub();

$continue = $hub->display_homepage();

// Function display_homepage() returns true if the hub home page is not displayed

// ...mostly when search form is not displayed for not logged users.

if (empty($continue)) {

exit;

}

}

$PAGE->set_pagetype('site-index');

$PAGE->set_docs_path('');

$PAGE->set_pagelayout('frontpage');

$editing = $PAGE->user_is_editing();

$PAGE->set_title($SITE->fullname);

$PAGE->set_heading($SITE->fullname);

$courserenderer = $PAGE->get_renderer('core', 'course');

echo $OUTPUT->header();

// Print Section or custom info.

$siteformatoptions = course_get_format($SITE)->get_format_options();

$modinfo = get_fast_modinfo($SITE);

$modnames = get_module_types_names();

$modnamesplural = get_module_types_names(true);

$modnamesused = $modinfo->get_used_module_names();

$mods = $modinfo->get_cms();

if (!empty($CFG->customfrontpageinclude)) {

include($CFG->customfrontpageinclude);

} else if ($siteformatoptions['numsections'] > 0) {

if ($editing) {

// Make sure section with number 1 exists.

course_create_sections_if_missing($SITE, 1);

// Re-request modinfo in case section was created.

$modinfo = get_fast_modinfo($SITE);

}

$section = $modinfo->get_section_info(1);

if (($section && (!empty($modinfo->sections[1]) or !empty($section->summary))) or $editing) {

echo $OUTPUT->box_start('generalbox sitetopic');

// If currently moving a file then show the current clipboard.

if (ismoving($SITE->id)) {

$stractivityclipboard = strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));

echo '<p><font size="2">';

echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true&amp;sesskey=".sesskey()."\">";

echo get_string('cancel') . '</a>)';

echo '</font></p>';

}

$context = context_course::instance(SITEID);

// If the section name is set we show it.

if (!is_null($section->name)) {

echo $OUTPUT->heading(

format_string($section->name, true, array('context' => $context)),

2,

'sectionname'

);

}

$summarytext = file_rewrite_pluginfile_urls($section->summary,

'pluginfile.php',

$context->id,

'course',

'section',

$section->id);

$summaryformatoptions = new stdClass();

$summaryformatoptions->noclean = true;

$summaryformatoptions->overflowdiv = true;

echo format_text($summarytext, $section->summaryformat, $summaryformatoptions);

if ($editing && has_capability('moodle/course:update', $context)) {

$streditsummary = get_string('editsummary');

echo "<a title=\"$streditsummary\" ".

" href=\"course/editsection.php?id=$section->id\"><img src=\"" . $OUTPUT->pix_url('t/edit') . "\" ".

" class=\"iconsmall\" alt=\"$streditsummary\" /></a><br /><br />";

}

$courserenderer = $PAGE->get_renderer('core', 'course');

echo $courserenderer->course_section_cm_list($SITE, $section);

echo $courserenderer->course_section_add_cm_control($SITE, $section->section);

echo $OUTPUT->box_end();

}

}

// Include course AJAX.

include_course_ajax($SITE, $modnamesused);

if (isloggedin() and !isguestuser() and isset($CFG->frontpageloggedin)) {

$frontpagelayout = $CFG->frontpageloggedin;

} else {

$frontpagelayout = $CFG->frontpage;

}

foreach (explode(',', $frontpagelayout) as $v) {

switch ($v) {

// Display the main part of the front page.

case FRONTPAGENEWS:

if ($SITE->newsitems) {

// Print forums only when needed.

require_once($CFG->dirroot .'/mod/forum/lib.php');

if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {

print_error('cannotfindorcreateforum', 'forum');

}

// Fetch news forum context for proper filtering to happen.

$newsforumcm = get_coursemodule_from_instance('forum', $newsforum->id, $SITE->id, false, MUST_EXIST);

$newsforumcontext = context_module::instance($newsforumcm->id, MUST_EXIST);

$forumname = format_string($newsforum->name, true, array('context' => $newsforumcontext));

echo html_writer::tag('a',

get_string('skipa', 'access', core_text::strtolower(strip_tags($forumname))),

array('href' => '#skipsitenews', 'class' => 'skip-block'));

// Wraps site news forum in div container.

echo html_writer::start_tag('div', array('id' => 'site-news-forum'));

if (isloggedin()) {

$SESSION->fromdiscussion = $CFG->wwwroot;

$subtext = '';

if (\mod_forum\subscriptions::is_subscribed($USER->id, $newsforum)) {

if (!\mod_forum\subscriptions::is_forcesubscribed($newsforum)) {

$subtext = get_string('unsubscribe', 'forum');

}

} else {

$subtext = get_string('subscribe', 'forum');

}

echo $OUTPUT->heading($forumname);

$suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $newsforum->id, 'sesskey' => sesskey()));

echo html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));

} else {

echo $OUTPUT->heading($forumname);

}

forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');

// End site news forum div container.

echo html_writer::end_tag('div');

echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipsitenews'));

}

break;

case FRONTPAGEENROLLEDCOURSELIST:

$mycourseshtml = $courserenderer->frontpage_my_courses();

if (!empty($mycourseshtml)) {

echo html_writer::tag('a',

get_string('skipa', 'access', core_text::strtolower(get_string('mycourses'))),

array('href' => '#skipmycourses', 'class' => 'skip-block'));

// Wrap frontpage course list in div container.

echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));

echo $OUTPUT->heading(get_string('mycourses'));

echo $mycourseshtml;

// End frontpage course list div container.

echo html_writer::end_tag('div');

echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipmycourses'));

break;

}

// No "break" here. If there are no enrolled courses - continue to 'Available courses'.

case FRONTPAGEALLCOURSELIST:

$availablecourseshtml = $courserenderer->frontpage_available_courses();

if (!empty($availablecourseshtml)) {

echo html_writer::tag('a',

get_string('skipa', 'access', core_text::strtolower(get_string('availablecourses'))),

array('href' => '#skipavailablecourses', 'class' => 'skip-block'));

// Wrap frontpage course list in div container.

echo html_writer::start_tag('div', array('id' => 'frontpage-course-list'));

echo $OUTPUT->heading(get_string('availablecourses'));

echo $availablecourseshtml;

// End frontpage course list div container.

echo html_writer::end_tag('div');

echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipavailablecourses'));

}

break;

case FRONTPAGECATEGORYNAMES:

echo html_writer::tag('a',

get_string('skipa', 'access', core_text::strtolower(get_string('categories'))),

array('href' => '#skipcategories', 'class' => 'skip-block'));

// Wrap frontpage category names in div container.

echo html_writer::start_tag('div', array('id' => 'frontpage-category-names'));

echo $OUTPUT->heading(get_string('categories'));

echo $courserenderer->frontpage_categories_list();

// End frontpage category names div container.

echo html_writer::end_tag('div');

echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcategories'));

break;

case FRONTPAGECATEGORYCOMBO:

echo html_writer::tag('a',

get_string('skipa', 'access', core_text::strtolower(get_string('courses'))),

array('href' => '#skipcourses', 'class' => 'skip-block'));

// Wrap frontpage category combo in div container.

echo html_writer::start_tag('div', array('id' => 'frontpage-category-combo'));

echo $OUTPUT->heading(get_string('courses'));

echo $courserenderer->frontpage_combo_list();

// End frontpage category combo div container.

echo html_writer::end_tag('div');

echo html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipcourses'));

break;

case FRONTPAGECOURSESEARCH:

echo $OUTPUT->box($courserenderer->course_search_form('', 'short'), 'mdl-align');

break;

}

echo '<br />';

}

if ($editing && has_capability('moodle/course:create', context_system::instance())) {

echo $courserenderer->add_new_course_button();

}

echo $OUTPUT->footer();