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efrain |
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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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* This file contains a controller for receiving LTI service requests
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*
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* @package mod_lti
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* @copyright 2014 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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define('NO_DEBUG_DISPLAY', true);
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define('NO_MOODLE_COOKIES', true);
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require_once(__DIR__ . '/../../config.php');
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require_once($CFG->dirroot . '/mod/lti/locallib.php');
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$response = new \mod_lti\local\ltiservice\response();
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$isget = $response->get_request_method() === mod_lti\local\ltiservice\resource_base::HTTP_GET;
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$isdelete = $response->get_request_method() === mod_lti\local\ltiservice\resource_base::HTTP_DELETE;
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if ($isget) {
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$response->set_accept(isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : '');
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} else {
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$response->set_content_type(isset($_SERVER['CONTENT_TYPE']) ? explode(';', $_SERVER['CONTENT_TYPE'], 2)[0] : '');
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}
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$ok = false;
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$path = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
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$accept = $response->get_accept();
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$contenttype = $response->get_content_type();
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$services = lti_get_services();
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foreach ($services as $service) {
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$resources = $service->get_resources();
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foreach ($resources as $resource) {
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if (($isget && !empty($accept) && (strpos($accept, '*/*') === false) &&
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!in_array($accept, $resource->get_formats())) ||
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((!$isget && !$isdelete) && !in_array($contenttype, $resource->get_formats()))) {
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continue;
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}
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$template = $resource->get_template();
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$template = preg_replace('/{config_type}/', '(toolproxy|tool)', $template);
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$template = preg_replace('/\{[a-zA-Z_]+\}/', '[^/]+', $template);
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$template = preg_replace('/\(([0-9a-zA-Z_\-,\/]+)\)/', '(\\1|)', $template);
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$template = str_replace('/', '\/', $template);
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if (preg_match("/^{$template}$/", $path) === 1) {
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$ok = true;
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break 2;
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}
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}
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}
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if (!$ok) {
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$response->set_code(400);
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$response->set_reason("No handler found for {$path} {$accept} {$contenttype}");
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} else {
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$body = file_get_contents('php://input');
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$response->set_request_data($body);
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if (in_array($response->get_request_method(), $resource->get_methods())) {
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$resource->execute($response);
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} else {
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$response->set_code(405);
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}
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}
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$response->send();
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