Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

//

// This file is part of BasicLTI4Moodle

//

// BasicLTI4Moodle is an IMS BasicLTI (Basic Learning Tools for Interoperability)

// consumer for Moodle 1.9 and Moodle 2.0. BasicLTI is a IMS Standard that allows web

// based learning tools to be easily integrated in LMS as native ones. The IMS BasicLTI

// specification is part of the IMS standard Common Cartridge 1.1 Sakai and other main LMS

// are already supporting or going to support BasicLTI. This project Implements the consumer

// for Moodle. Moodle is a Free Open source Learning Management System by Martin Dougiamas.

// BasicLTI4Moodle is a project iniciated and leaded by Ludo(Marc Alier) and Jordi Piguillem

// at the GESSI research group at UPC.

// SimpleLTI consumer for Moodle is an implementation of the early specification of LTI

// by Charles Severance (Dr Chuck) htp://dr-chuck.com , developed by Jordi Piguillem in a

// Google Summer of Code 2008 project co-mentored by Charles Severance and Marc Alier.

//

// BasicLTI4Moodle is copyright 2009 by Marc Alier Forment, Jordi Piguillem and Nikolas Galanis

// of the Universitat Politecnica de Catalunya http://www.upc.edu

// Contact info: Marc Alier Forment granludo @ gmail.com or marc.alier @ upc.edu.

/**

 * This file contains a Trivial memory-based store - no support for tokens

 *

 * @package mod_lti

 * @copyright IMS Global Learning Consortium

 *

 * @author Charles Severance csev@umich.edu

 *

 * @license http://www.apache.org/licenses/LICENSE-2.0

 */

namespace moodle\mod\lti; // Using a namespace as the basicLTI module imports classes with the same names.

defined('MOODLE_INTERNAL') || die;

/**

 * A Trivial memory-based store - no support for tokens.

 */

class TrivialOAuthDataStore extends OAuthDataStore {

    /** @var array $consumers  Array of tool consumer keys and secrets */

    private $consumers = array();

    /**

     * Add a consumer to the array

     *

     * @param string $consumerkey     Consumer key

     * @param string $consumersecret  Consumer secret

     */

    public function add_consumer($consumerkey, $consumersecret) {

        $this->consumers[$consumerkey] = $consumersecret;

    }

    /**

     * Get OAuth consumer given its key

     *

     * @param string $consumerkey     Consumer key

     *

     * @return moodle\mod\lti\OAuthConsumer  OAuthConsumer object

     */

    public function lookup_consumer($consumerkey) {

        if (strpos($consumerkey, "http://" ) === 0) {

            $consumer = new OAuthConsumer($consumerkey, "secret", null);

            return $consumer;

        }

        if ( $this->consumers[$consumerkey] ) {

            $consumer = new OAuthConsumer($consumerkey, $this->consumers[$consumerkey], null);

            return $consumer;

        }

        return null;

    }

    /**

     * Create a dummy OAuthToken object for a consumer

     *

     * @param moodle\mod\lti\OAuthConsumer $consumer     Consumer

     * @param string $tokentype    Type of token

     * @param string $token        Token ID

     *

     * @return moodle\mod\lti\OAuthToken OAuthToken object

     */

    public function lookup_token($consumer, $tokentype, $token) {

        return new OAuthToken($consumer, '');

    }

    /**

     * Nonce values are not checked so just return a null

     *

     * @param moodle\mod\lti\OAuthConsumer $consumer     Consumer

     * @param string $token        Token ID

     * @param string $nonce        Nonce value

     * @param string $timestamp    Timestamp

     *

     * @return null

     */

    public function lookup_nonce($consumer, $token, $nonce, $timestamp) {

        // Should add some clever logic to keep nonces from

        // being reused - for now we are really trusting

        // that the timestamp will save us.

        return null;

    }

    /**

     * Tokens are not used so just return a null.

     *

     * @param moodle\mod\lti\OAuthConsumer $consumer     Consumer

     *

     * @return null

     */

    public function new_request_token($consumer) {

        return null;

    }

    /**

     * Tokens are not used so just return a null.

     *

     * @param string $token        Token ID

     * @param moodle\mod\lti\OAuthConsumer $consumer     Consumer

     *

     * @return null

     */

    public function new_access_token($token, $consumer) {

        return null;

    }

}