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81 lines
2.5 KiB
81 lines
2.5 KiB
2 years ago
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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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* Tool proxy.
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*
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* @package enrol_lti
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* @copyright 2016 John Okely <john@moodle.com>
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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(__DIR__ . '/../../config.php');
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$toolid = null;
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$token = null;
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$filearguments = get_file_argument();
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$arguments = explode('/', trim($filearguments, '/'));
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if (count($arguments) == 2) {
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list($toolid, $token) = $arguments;
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}
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$toolid = optional_param('id', $toolid, PARAM_INT);
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$token = optional_param('token', $token, PARAM_ALPHANUM);
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$PAGE->set_context(context_system::instance());
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$url = new moodle_url('/enrol/lti/tp.php');
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$PAGE->set_url($url);
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$PAGE->set_pagelayout('popup');
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$PAGE->set_title(get_string('registration', 'enrol_lti'));
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// Only show the proxy if the token parameter is correct.
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// If we do not compare with a shared secret, someone could very easily
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// guess an id for the enrolment.
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if (!\enrol_lti\helper::verify_proxy_token($toolid, $token)) {
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throw new \moodle_exception('incorrecttoken', 'enrol_lti');
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}
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$tool = \enrol_lti\helper::get_lti_tool($toolid);
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if (!is_enabled_auth('lti')) {
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print_error('pluginnotenabled', 'auth', '', get_string('pluginname', 'auth_lti'));
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exit();
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}
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// Check if the enrolment plugin is disabled.
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if (!enrol_is_enabled('lti')) {
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print_error('enrolisdisabled', 'enrol_lti');
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exit();
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}
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// Check if the enrolment instance is disabled.
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if ($tool->status != ENROL_INSTANCE_ENABLED) {
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print_error('enrolisdisabled', 'enrol_lti');
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exit();
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}
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$messagetype = required_param('lti_message_type', PARAM_TEXT);
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// Only accept proxy registration requests from this endpoint.
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if ($messagetype != "ToolProxyRegistrationRequest") {
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print_error('invalidrequest', 'enrol_lti');
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exit();
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}
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$toolprovider = new \enrol_lti\tool_provider($toolid);
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$toolprovider->handleRequest();
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echo $OUTPUT->header();
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echo $OUTPUT->footer();
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