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<?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;
/**
* Class linkedin.
*
* Custom oauth2 issuer for linkedin as it doesn't support OIDC and has a different way to get
* key information for users - firstname, lastname, email.
*
* @copyright 2021 Peter Dias
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core
*/
class linkedin 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' => 'LinkedIn',
'image' => 'https://static.licdn.com/scds/common/u/images/logos/favicons/v1/favicon.ico',
'baseurl' => 'https://api.linkedin.com/v2',
'loginscopes' => 'r_liteprofile r_emailaddress',
'loginscopesoffline' => 'r_liteprofile r_emailaddress',
'showonloginpage' => issuer::EVERYWHERE,
'servicetype' => 'linkedin',
];
$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 {
$endpoints = [
'authorization_endpoint' => 'https://www.linkedin.com/oauth/v2/authorization',
'token_endpoint' => 'https://www.linkedin.com/oauth/v2/accessToken',
'email_endpoint' => 'https://api.linkedin.com/v2/emailAddress?q=members&projection=(elements*(handle~))',
'userinfo_endpoint' => "https://api.linkedin.com/v2/me?projection=(localizedFirstName,localizedLastName,"
. "profilePicture(displayImage~digitalmediaAsset:playableStreams))",
];
foreach ($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.
$mapping = [
'localizedFirstName' => 'firstname',
'localizedLastName' => 'lastname',
'elements[0]-handle~-emailAddress' => 'email',
'profilePicture-displayImage~-elements[0]-identifiers[0]-identifier' => 'picture'
];
foreach ($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;
}
/**
* Linkedin does not have a discovery url that could be found. Return empty.
* @param issuer $issuer
* @return int
*/
public static function discover_endpoints($issuer): int {
return 0;
}
}
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