nextcloud/apps/files_external/ajax/oauth2.php

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<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Adam Williamson <awilliam@redhat.com>
* @author Christopher Schäpers <kondou@ts.unde.re>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Vincent Petry <pvince81@owncloud.com>
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* @author Volkan Gezer <volkangezer@gmail.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
set_include_path(get_include_path().PATH_SEPARATOR.
\OC_App::getAppPath('files_external').'/3rdparty/google-api-php-client/src');
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require_once 'Google/autoload.php';
OCP\JSON::checkAppEnabled('files_external');
OCP\JSON::checkLoggedIn();
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OCP\JSON::callCheck();
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$l = \OC::$server->getL10N('files_external');
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// FIXME: currently hard-coded to Google Drive
if (isset($_POST['client_id']) && isset($_POST['client_secret']) && isset($_POST['redirect'])) {
$client = new Google_Client();
$client->setClientId((string)$_POST['client_id']);
$client->setClientSecret((string)$_POST['client_secret']);
$client->setRedirectUri((string)$_POST['redirect']);
$client->setScopes(array('https://www.googleapis.com/auth/drive'));
$client->setApprovalPrompt('force');
$client->setAccessType('offline');
if (isset($_POST['step'])) {
$step = (int) $_POST['step'];
if ($step === 1) {
try {
$authUrl = $client->createAuthUrl();
OCP\JSON::success(array('data' => array(
'url' => $authUrl
)));
} catch (Exception $exception) {
OCP\JSON::error(array('data' => array(
'message' => $l->t('Step 1 failed. Exception: %s', array($exception->getMessage()))
)));
}
} else if ($step === 2 && isset($_POST['code'])) {
try {
$token = $client->authenticate((string)$_POST['code']);
OCP\JSON::success(array('data' => array(
'token' => $token
)));
} catch (Exception $exception) {
OCP\JSON::error(array('data' => array(
'message' => $l->t('Step 2 failed. Exception: %s', array($exception->getMessage()))
)));
}
}
}
}