nextcloud/apps/files_external/appinfo/app.php

<?php
/**
 * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
 * Copyright (c) 2014 Robin McCorkell <rmccorkell@karoshi.org.uk>
 * This file is licensed under the Affero General Public License version 3 or
 * later.
 * See the COPYING-README file.
 */

OC::$CLASSPATH['OC\Files\Storage\StreamWrapper'] = 'files_external/lib/streamwrapper.php';
OC::$CLASSPATH['OC\Files\Storage\FTP'] = 'files_external/lib/ftp.php';
OC::$CLASSPATH['OC\Files\Storage\DAV'] = 'files_external/lib/webdav.php';
OC::$CLASSPATH['OC\Files\Storage\OwnCloud'] = 'files_external/lib/owncloud.php';
OC::$CLASSPATH['OC\Files\Storage\Google'] = 'files_external/lib/google.php';
OC::$CLASSPATH['OC\Files\Storage\Swift'] = 'files_external/lib/swift.php';
OC::$CLASSPATH['OC\Files\Storage\SMB'] = 'files_external/lib/smb.php';
OC::$CLASSPATH['OC\Files\Storage\SMB_OC'] = 'files_external/lib/smb_oc.php';
OC::$CLASSPATH['OC\Files\Storage\AmazonS3'] = 'files_external/lib/amazons3.php';
OC::$CLASSPATH['OC\Files\Storage\Dropbox'] = 'files_external/lib/dropbox.php';
OC::$CLASSPATH['OC\Files\Storage\SFTP'] = 'files_external/lib/sftp.php';
OC::$CLASSPATH['OC\Files\Storage\iRODS'] = 'files_external/lib/irods.php';
OC::$CLASSPATH['OC_Mount_Config'] = 'files_external/lib/config.php';

OCP\App::registerAdmin('files_external', 'settings');
if (OCP\Config::getAppValue('files_external', 'allow_user_mounting', 'yes') == 'yes') {
	OCP\App::registerPersonal('files_external', 'personal');
}

// connecting hooks
OCP\Util::connectHook('OC_Filesystem', 'post_initMountPoints', '\OC_Mount_Config', 'initMountPointsHook');
OCP\Util::connectHook('OC_User', 'post_login', 'OC\Files\Storage\iRODS', 'login');
OCP\Util::connectHook('OC_User', 'post_login', 'OC\Files\Storage\SMB_OC', 'login');

OC_Mount_Config::registerBackend('\OC\Files\Storage\Local', array(
	'backend' => 'Local',
	'configuration' => array(
		'datadir' => 'Location')));

OC_Mount_Config::registerBackend('\OC\Files\Storage\AmazonS3', array(
	'backend' => 'Amazon S3',
	'configuration' => array(
		'key' => 'Key',
		'secret' => '*Secret',
		'bucket' => 'Bucket')));

OC_Mount_Config::registerBackend('\OC\Files\Storage\Dropbox', array(
	'backend' => 'Dropbox',
	'configuration' => array(
		'configured' => '#configured',
		'app_key' => 'App key',
		'app_secret' => 'App secret',
		'token' => '#token',
		'token_secret' => '#token_secret'),
	'custom' => 'dropbox'));

OC_Mount_Config::registerBackend('\OC\Files\Storage\FTP', array(
	'backend' => 'FTP',
	'configuration' => array(
		'host' => 'URL',
		'user' => 'Username',
		'password' => '*Password',
		'root' => '&Root',
		'secure' => '!Secure ftps://'),
	'has_dependencies' => true));

OC_Mount_Config::registerBackend('\OC\Files\Storage\Google', array(
	'backend' => 'Google Drive',
	'configuration' => array(
		'configured' => '#configured',
		'token' => '#token',
		'token_secret' => '#token secret'),
	'custom' => 'google',
	'has_dependencies' => true));

OC_Mount_Config::registerBackend('\OC\Files\Storage\SWIFT', array(
	'backend' => 'OpenStack Swift',
	'configuration' => array(
		'host' => 'URL',
		'user' => 'Username',
		'token' => '*Token',
		'root' => '&Root',
		'secure' => '!Secure ftps://')));

OC_Mount_Config::registerBackend('\OC\Files\Storage\SMB', array(
	'backend' => 'SMB / CIFS',
	'configuration' => array(
		'host' => 'URL',
		'user' => 'Username',
		'password' => '*Password',
		'share' => 'Share',
		'root' => '&Root'),
	'has_dependencies' => true));

OC_Mount_Config::registerBackend('\OC\Files\Storage\DAV', array(
	'backend' => 'ownCloud / WebDAV',
	'configuration' => array(
		'host' => 'URL',
		'user' => 'Username',
		'password' => '*Password',
		'root' => '&Root',
		'secure' => '!Secure https://'),
	'has_dependencies' => true));

OC_Mount_Config::registerBackend('\OC\Files\Storage\SFTP', array(
	'backend' => 'SFTP',
	'configuration' => array(
		'host' => 'URL',
		'user' => 'Username',
		'password' => '*Password',
		'root' => '&Root')));