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/>.

namespace core\oauth2\service;

use core\oauth2\issuer;

use core\oauth2\endpoint;

use core\oauth2\user_field_mapping;

use core\oauth2\discovery\openidconnect;

/**

 * Class for Facebook oAuth service, with the specific methods related to it.

 *

 * @package    core

 * @copyright  2021 Sara Arjona (sara@moodle.com)

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class facebook extends openidconnect implements issuer_interface {

    /**

     * Build an OAuth2 issuer, with all the default values for this service.

     *

     * @return issuer The issuer initialised with proper default values.

     */

    public static function init(): issuer {

        $record = (object) [

            'name' => 'Facebook',

            'image' => 'https://facebookbrand.com/wp-content/uploads/2016/05/flogo_rgb_hex-brc-site-250.png',

            'baseurl' => '',

            'loginscopes' => 'public_profile email',

            'loginscopesoffline' => 'public_profile email',

            'showonloginpage' => issuer::EVERYWHERE,

            'servicetype' => 'facebook',

        ];

        $issuer = new issuer(0, $record);

        return $issuer;

    }

    /**

     * Create endpoints for this issuer.

     *

     * @param issuer $issuer Issuer the endpoints should be created for.

     * @return issuer

     */

    public static function create_endpoints(issuer $issuer): issuer {

        // The Facebook API version.

        $apiversion = '2.12';

        // The Graph API URL.

        $graphurl = 'https://graph.facebook.com/v' . $apiversion;

        // User information fields that we want to fetch.

        $infofields = [

            'id',

            'first_name',

            'last_name',

            'picture.type(large)',

            'name',

            'email',

        ];

        $endpoints = [

            'authorization_endpoint' => sprintf('https://www.facebook.com/v%s/dialog/oauth', $apiversion),

            'token_endpoint' => $graphurl . '/oauth/access_token',

            'userinfo_endpoint' => $graphurl . '/me?fields=' . implode(',', $infofields)

        ];

        foreach ($endpoints as $name => $url) {

            $record = (object) [

                'issuerid' => $issuer->get('id'),

                'name' => $name,

                'url' => $url

            ];

            $endpoint = new endpoint(0, $record);

            $endpoint->create();

        }

        // Create the field mappings.

        $mapping = [

            'name' => 'alternatename',

            'last_name' => 'lastname',

            'email' => 'email',

            'first_name' => 'firstname',

            'picture-data-url' => 'picture',

        ];

        foreach ($mapping as $external => $internal) {

            $record = (object) [

                'issuerid' => $issuer->get('id'),

                'externalfield' => $external,

                'internalfield' => $internal

            ];

            $userfieldmapping = new user_field_mapping(0, $record);

            $userfieldmapping->create();

        }

        return $issuer;

    }

}