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ltilaunch.php
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ltilaunch.php
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<?php
// This file is part of the EQUELLA module - http://git.io/vUuof
//
// 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/>.
require_once ('../../config.php');
require_once ('lib.php');
require_once ('locallib.php');
require_once ($CFG->libdir . '/completionlib.php');
require_login();
$action = optional_param('action', 'view', PARAM_ACTION);
if ($action == 'view') {
$cmid = required_param('cmid', PARAM_INT);
$cm = get_coursemodule_from_id('equella', $cmid, 0, false, MUST_EXIST);
$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
$equella = $DB->get_record('equella', array('id' => $cm->instance), '*', MUST_EXIST);
$context = context_module::instance($cm->id);
$PAGE->set_context($context);
$PAGE->set_pagelayout('embedded');
require_capability('mod/equella:view', $context);
$equella->cmid = $cmid;
$equella->course = $course->id;
$params = equella_lti_params($equella, $course);
if (class_exists('mod_equella\\event\\course_module_viewed')) {
$eventparams = array(
'context' => $context,
'objectid' => $equella->id
);
$event = \mod_equella\event\course_module_viewed::create($eventparams);
$event->add_record_snapshot('course_modules', $cm);
$event->add_record_snapshot('course', $course);
$event->add_record_snapshot('equella', $equella);
$event->trigger();
} else {
add_to_log($course->id, "equella", "view equella resource", "view.php?id=$cm->id", $equella->id, $cm->id);
}
// Update 'viewed' state if required by completion system
$completion = new completion_info($course);
$completion->set_module_viewed($cm);
echo '<html><body>';
echo equella_lti_launch_form($equella->url, $params);
echo '</body></html>';
} elseif ($action == 'select') {
$args = new stdClass();
$args->course = required_param('course', PARAM_INT);
$args->section = required_param('section', PARAM_INT);
$course = $DB->get_record('course', array('id' => $args->course), '*', MUST_EXIST);
$context = context_course::instance($args->course);
$PAGE->set_context($context);
require_capability('moodle/course:manageactivities', $context);
$url = equella_build_integration_url($args, false);
$extraparams = $url->params();
if ($CFG->equella_action == EQUELLA_ACTION_STRUCTURED) {
$contents = equella_get_course_contents($course->id, $args->section);
$json = json_encode($contents);
$extraparams['structure'] = $json;
}
$extraparams['itemXml'] = get_item_xml($course, $args->section);
$equella = new stdClass();
$equella->id = 0;
$equella->course = $args->course;
$equella->url = $CFG->equella_url;
$params = equella_lti_params($equella, $course, $extraparams);
echo '<html><body>';
echo equella_lti_launch_form($equella->url, $params);
echo '</body></html>';
}
// This is the same data as equella_add_lmsinfo_parameters
function get_item_xml($course, $sectionid) {
global $USER, $DB;
$xml = new SimpleXMLElement('<xml />');
$integxml = $xml->addChild('integration');
$integxml->addChild('lms', 'Moodle');
$integxml->addChild('contributiontype', 'integration');
$integmoodlexml = $integxml->addChild('moodle');
// User
$integuserxml = $integxml->addChild('user');
$integuserxml->addChild('username', $USER->username);
$integuserxml->addChild('firstname', $USER->firstname);
$integuserxml->addChild('lastname', $USER->lastname);
// Generic course info
$integcoursexml = $integxml->addChild('course');
$integcoursexml->addChild('fullname', $course->fullname);
$integcoursexml->addChild('shortname', $course->shortname);
$integcoursexml->addChild('code', $course->idnumber);
// Moodle specific course info
$integmoodlecoursexml = $integmoodlexml->addChild('course');
$integmoodlecoursexml->addChild('idnumber', $course->idnumber);
$integmoodlecoursexml->addChild('id', $course->id);
// Moodle section info
$integmoodlexml->addChild('section', get_section_name($course, $sectionid));
// Moodle specific course categories (there is probably a more optimal way to do this)
$catparentxml = $integmoodlexml;
$catid = $course->category;
while ($catid !== 0){
if ($category = $DB->get_record('course_categories', array('id' => $catid))){
$catxml = $catparentxml->addChild('category');
$catxml->addChild('name', $category->name);
$catparentxml = $catxml;
$catid = $category->parent;
}
else {
$catid = 0;
}
}
return str_replace(array("\r", "\n"),'',$xml->asXML());
}