/**
* This file contains a controller for receiving LTI service requests
*
* @package mod_lti
* @copyright 2014 Vital Source Technologies http://vitalsource.com
* @author Stephen Vickers
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('NO_DEBUG_DISPLAY', true);
define('NO_MOODLE_COOKIES', true);
require_once dirname(__FILE__) . '/../../config.php';
require_once $CFG->dirroot . '/mod/lti/locallib.php';
$response = new \mod_lti\local\ltiservice\response();
$isget = $response->get_request_method() == 'GET';
if ($isget) {
$response->set_accept(isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : '');
} else {
$response->set_content_type(isset($_SERVER['CONTENT_TYPE']) ? $_SERVER['CONTENT_TYPE'] : '');
}
$ok = false;
$path = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
$accept = $response->get_accept();
$services = lti_get_services();
foreach ($services as $service) {
$resources = $service->get_resources();
foreach ($resources as $resource) {
if ($isget && !empty($accept) && strpos($accept, '*/*') === false && !in_array($accept, $resource->get_formats()) || !$isget && !in_array($response->get_content_type(), $resource->get_formats())) {
continue;
}
$template = $resource->get_template();
$template = preg_replace('/\\{[a-zA-Z_]+\\}/', '[^/]+', $template);
