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95 lines
3.4 KiB
95 lines
3.4 KiB
<?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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* The main entry point for the external system.
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*
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* @package enrol_lti
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* @copyright 2016 Mark Nelson <markn@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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$toolid = required_param('id', PARAM_INT);
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$PAGE->set_context(context_system::instance());
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$url = new moodle_url('/enrol/lti/tool.php');
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$PAGE->set_url($url);
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$PAGE->set_pagelayout('popup');
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$PAGE->set_title(get_string('opentool', 'enrol_lti'));
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// Get the tool.
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$tool = \enrol_lti\helper::get_lti_tool($toolid);
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// Check if the authentication plugin is disabled.
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if (!is_enabled_auth('lti')) {
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print_error('pluginnotenabled', 'auth', '', get_string('pluginname', 'auth_lti'));
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exit();
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}
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// Check if the enrolment plugin is disabled.
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if (!enrol_is_enabled('lti')) {
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print_error('enrolisdisabled', 'enrol_lti');
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exit();
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}
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// Check if the enrolment instance is disabled.
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if ($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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$consumerkey = required_param('oauth_consumer_key', PARAM_TEXT);
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$ltiversion = optional_param('lti_version', null, PARAM_TEXT);
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$messagetype = required_param('lti_message_type', PARAM_TEXT);
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// Only accept launch requests from this endpoint.
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if ($messagetype != "basic-lti-launch-request") {
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print_error('invalidrequest', 'enrol_lti');
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exit();
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}
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// Initialise tool provider.
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$toolprovider = new \enrol_lti\tool_provider($toolid);
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// Special handling for LTIv1 launch requests.
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if ($ltiversion === \IMSGlobal\LTI\ToolProvider\ToolProvider::LTI_VERSION1) {
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$dataconnector = new \enrol_lti\data_connector();
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$consumer = new \IMSGlobal\LTI\ToolProvider\ToolConsumer($consumerkey, $dataconnector);
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// Check if the consumer has already been registered to the enrol_lti_lti2_consumer table. Register if necessary.
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$consumer->ltiVersion = \IMSGlobal\LTI\ToolProvider\ToolProvider::LTI_VERSION1;
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// For LTIv1, set the tool secret as the consumer secret.
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$consumer->secret = $tool->secret;
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$consumer->name = optional_param('tool_consumer_instance_name', '', PARAM_TEXT);
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$consumer->consumerName = $consumer->name;
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$consumer->consumerGuid = optional_param('tool_consumer_instance_guid', null, PARAM_TEXT);
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$consumer->consumerVersion = optional_param('tool_consumer_info_version', null, PARAM_TEXT);
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$consumer->enabled = true;
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$consumer->protected = true;
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$consumer->save();
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// Set consumer to tool provider.
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$toolprovider->consumer = $consumer;
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// Map tool consumer and published tool, if necessary.
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$toolprovider->map_tool_to_consumer();
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}
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// Handle the request.
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$toolprovider->handleRequest();
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echo $OUTPUT->header();
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echo $OUTPUT->footer();
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