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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Handle sending a user to a tool provider to initiate a content-item selection.
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*
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* @package mod_lti
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* @copyright 2015 Vital Source Technologies http://vitalsource.com
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* @author Stephen Vickers
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once('../../config.php');
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require_once($CFG->dirroot . '/mod/lti/lib.php');
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require_once($CFG->dirroot . '/mod/lti/locallib.php');
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$id = required_param('id', PARAM_INT);
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$courseid = required_param('course', PARAM_INT);
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$title = optional_param('title', '', PARAM_TEXT);
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$text = optional_param('text', '', PARAM_RAW);
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$config = lti_get_type_type_config($id);
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if ($config->lti_ltiversion === LTI_VERSION_1P3) {
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if (!isset($SESSION->lti_initiatelogin_status)) {
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echo lti_initiate_login($courseid, 0, null, $config, 'ContentItemSelectionRequest', $title, $text);
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exit;
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} else {
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unset($SESSION->lti_initiatelogin_status);
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}
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}
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// Check access and capabilities.
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$course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
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require_login($course);
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$context = context_course::instance($courseid);
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require_capability('moodle/course:manageactivities', $context);
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require_capability('mod/lti:addcoursetool', $context);
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// Set the return URL. We send the launch container along to help us avoid frames-within-frames when the user returns.
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$returnurlparams = [
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'course' => $course->id,
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'id' => $id,
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'sesskey' => sesskey()
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];
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$returnurl = new \moodle_url('/mod/lti/contentitem_return.php', $returnurlparams);
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// Prepare the request.
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$request = lti_build_content_item_selection_request($id, $course, $returnurl, $title, $text, [], []);
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// Get the launch HTML.
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$content = lti_post_launch_html($request->params, $request->url, false);
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echo $content;
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