nextcloud/apps/files_encryption/tests/stream.php

<?php
/**
 * ownCloud
 *
 * @author Florin Peter
 * @copyright 2013 Florin Peter <owncloud@florin-peter.de>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library 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 along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

require_once realpath( dirname( __FILE__ ) . '/../../../lib/base.php' );
require_once realpath( dirname( __FILE__ ) . '/../lib/crypt.php' );
require_once realpath( dirname( __FILE__ ) . '/../lib/keymanager.php' );
require_once realpath( dirname( __FILE__ ) . '/../lib/proxy.php' );
require_once realpath( dirname( __FILE__ ) . '/../lib/stream.php' );
require_once realpath( dirname( __FILE__ ) . '/../lib/util.php' );
require_once realpath( dirname( __FILE__ ) . '/../appinfo/app.php' );

use OCA\Encryption;

/**
 * Class Test_Encryption_Stream
 * @brief this class provide basic stream tests
 */
class Test_Encryption_Stream extends \PHPUnit_Framework_TestCase
{

	public $userId;
	public $pass;
	/**
	 * @var \OC_FilesystemView
	 */
	public $view;
	public $dataShort;
	public $stateFilesTrashbin;

	public static function setUpBeforeClass() {
		// reset backend
		\OC_User::clearBackends();
		\OC_User::useBackend( 'database' );

		// Filesystem related hooks
		\OCA\Encryption\Helper::registerFilesystemHooks();

		// clear and register hooks
		\OC_FileProxy::clearProxies();
		\OC_FileProxy::register( new OCA\Encryption\Proxy() );

		// setup filesystem
		\OC_Util::tearDownFS();
		\OC_User::setUserId( '' );
		\OC\Files\Filesystem::tearDown();
		\OC_Util::setupFS( 'admin' );
		\OC_User::setUserId( 'admin' );

		// login admin
		$params['uid'] = 'admin';
		$params['password'] = 'admin';
		OCA\Encryption\Hooks::login( $params );

	}

	function setUp() {
		// set user id
		\OC_User::setUserId( 'admin' );
		$this->userId = 'admin';
		$this->pass = 'admin';

		// init filesystem view
		$this->view = new \OC_FilesystemView( '/' );

		// init short data
		$this->dataShort = 'hats';

		// remember files_trashbin state
		$this->stateFilesTrashbin = OC_App::isEnabled( 'files_trashbin' );

		// we don't want to tests with app files_trashbin enabled
		\OC_App::disable( 'files_trashbin' );
	}

	function tearDown() {
		// reset app files_trashbin
		if ( $this->stateFilesTrashbin ) {
			OC_App::enable( 'files_trashbin' );
		} else {
			OC_App::disable( 'files_trashbin' );
		}
	}

	public static function tearDownAfterClass() {

	}

	function testStreamOptions() {
		$filename = '/tmp-' . time();
		$view = new \OC\Files\View( '/' . $this->userId . '/files' );

		// Save short data as encrypted file using stream wrapper
		$cryptedFile = $view->file_put_contents( $filename, $this->dataShort );

		// Test that data was successfully written
		$this->assertTrue( is_int( $cryptedFile ) );

		$handle = $view->fopen( $filename, 'r' );

		// check if stream is at position zero
		$this->assertEquals( 0, ftell( $handle ) );

		// set stream options
		$this->assertTrue( flock( $handle, LOCK_SH ) );
		$this->assertTrue( flock( $handle, LOCK_UN ) );

		// tear down
		$view->unlink( $filename );
	}

	function testStreamSetBlocking() {
		$filename = '/tmp-' . time();
		$view = new \OC\Files\View( '/' . $this->userId . '/files' );

		// Save short data as encrypted file using stream wrapper
		$cryptedFile = $view->file_put_contents( $filename, $this->dataShort );

		// Test that data was successfully written
		$this->assertTrue( is_int( $cryptedFile ) );

		$handle = $view->fopen( $filename, 'r' );

		// set stream options
		$this->assertTrue( stream_set_blocking( $handle, 1 ) );

		// tear down
		$view->unlink( $filename );
	}

	function testStreamSetTimeout() {
		$filename = '/tmp-' . time();
		$view = new \OC\Files\View( '/' . $this->userId . '/files' );

		// Save short data as encrypted file using stream wrapper
		$cryptedFile = $view->file_put_contents( $filename, $this->dataShort );

		// Test that data was successfully written
		$this->assertTrue( is_int( $cryptedFile ) );

		$handle = $view->fopen( $filename, 'r' );

		// set stream options
		$this->assertFalse( stream_set_timeout( $handle, 1 ) );

		// tear down
		$view->unlink( $filename );
	}

	function testStreamSetWriteBuffer() {
		$filename = '/tmp-' . time();
		$view = new \OC\Files\View( '/' . $this->userId . '/files' );

		// Save short data as encrypted file using stream wrapper
		$cryptedFile = $view->file_put_contents( $filename, $this->dataShort );

		// Test that data was successfully written
		$this->assertTrue( is_int( $cryptedFile ) );

		$handle = $view->fopen( $filename, 'r' );

		// set stream options
		$this->assertEquals( 0, stream_set_write_buffer( $handle, 1024 ) );

		// tear down
		$view->unlink( $filename );
	}
}