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sources/apps/files_encryption/tests/share.php 44.4 KB
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  <?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/>.
   *
   */
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  require_once __DIR__ . '/../3rdparty/Crypt_Blowfish/Blowfish.php';
  require_once __DIR__ . '/../../../lib/base.php';
  require_once __DIR__ . '/../lib/crypt.php';
  require_once __DIR__ . '/../lib/keymanager.php';
  require_once __DIR__ . '/../lib/proxy.php';
  require_once __DIR__ . '/../lib/stream.php';
  require_once __DIR__ . '/../lib/util.php';
  require_once __DIR__ . '/../lib/helper.php';
  require_once __DIR__ . '/../appinfo/app.php';
  require_once __DIR__ . '/util.php';
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  use OCA\Encryption;
  
  /**
   * Class Test_Encryption_Share
   */
  class Test_Encryption_Share extends \PHPUnit_Framework_TestCase {
  
  	const TEST_ENCRYPTION_SHARE_USER1 = "test-share-user1";
  	const TEST_ENCRYPTION_SHARE_USER2 = "test-share-user2";
  	const TEST_ENCRYPTION_SHARE_USER3 = "test-share-user3";
  	const TEST_ENCRYPTION_SHARE_USER4 = "test-share-user4";
  	const TEST_ENCRYPTION_SHARE_GROUP1 = "test-share-group1";
  
  	public $stateFilesTrashbin;
  	public $filename;
  	public $dataShort;
  	/**
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  	 * @var OC\Files\View
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  	 */
  	public $view;
  	public $folder1;
  	public $subfolder;
  	public $subsubfolder;
  
  	public static function setUpBeforeClass() {
  		// reset backend
  		\OC_User::clearBackends();
  		\OC_User::useBackend('database');
  
  		// enable resharing
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  		\OC::$server->getAppConfig()->setValue('core', 'shareapi_allow_resharing', 'yes');
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  		// clear share hooks
  		\OC_Hook::clear('OCP\\Share');
  		\OC::registerShareHooks();
  		\OCP\Util::connectHook('OC_Filesystem', 'setup', '\OC\Files\Storage\Shared', 'setup');
  
  		// Sharing related hooks
  		\OCA\Encryption\Helper::registerShareHooks();
  
  		// Filesystem related hooks
  		\OCA\Encryption\Helper::registerFilesystemHooks();
  
  		// clear and register hooks
  		\OC_FileProxy::clearProxies();
  		\OC_FileProxy::register(new OCA\Encryption\Proxy());
  
  		// create users
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1, true);
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, true);
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3, true);
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4, true);
  
  		// create group and assign users
  		\OC_Group::createGroup(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1);
  		\OC_Group::addToGroup(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1);
  		\OC_Group::addToGroup(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1);
  	}
  
  	function setUp() {
  		$this->dataShort = 'hats';
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  		$this->view = new \OC\Files\View('/');
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  		$this->folder1 = '/folder1';
  		$this->subfolder = '/subfolder1';
  		$this->subsubfolder = '/subsubfolder1';
  
  		$this->filename = 'share-tmp.test';
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  		// remember files_trashbin state
  		$this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
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  		// we don't want to tests with app files_trashbin enabled
  		\OC_App::disable('files_trashbin');
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  	}
  
  	function tearDown() {
  		// reset app files_trashbin
  		if ($this->stateFilesTrashbin) {
  			OC_App::enable('files_trashbin');
  		} else {
  			OC_App::disable('files_trashbin');
  		}
  	}
  
  	public static function tearDownAfterClass() {
  		// clean group
  		\OC_Group::deleteGroup(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1);
  
  		// cleanup users
  		\OC_User::deleteUser(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  		\OC_User::deleteUser(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  		\OC_User::deleteUser(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3);
  		\OC_User::deleteUser(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4);
  	}
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  	/**
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  	 * @medium
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  	 * @param bool $withTeardown
  	 */
  	function testShareFile($withTeardown = true) {
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// save file with content
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  		$cryptedFile = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename, $this->dataShort);
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  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile));
  
  		// disable encryption proxy to prevent recursive calls
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  
  		// get the file info from previous created file
  		$fileInfo = $this->view->getFileInfo(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename);
  
  		// check if we have a valid file info
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  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
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  		// check if the unencrypted file size is stored
  		$this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
  
  		// re-enable the file proxy
  		\OC_FileProxy::$enabled = $proxyStatus;
  
  		// share the file
  		\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, OCP\PERMISSION_ALL);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// check if share key for user1 exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  		// login as user1
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  		// get file contents
  		$retrievedCryptedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->filename);
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  		// check if data is the same as we previously written
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
  
  		// cleanup
  		if ($withTeardown) {
  
  			// login as admin
  			\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  			// unshare the file
  			\OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  			// cleanup
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  			$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/');
  			$this->view->unlink($this->filename);
  			$this->view->chroot('/');
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  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  		}
  	}
  
  	/**
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  	 * @medium
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  	 * @param bool $withTeardown
  	 */
  	function testReShareFile($withTeardown = true) {
  		$this->testShareFile(false);
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  		// login as user2
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  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  		// get the file info
  		$fileInfo = $this->view->getFileInfo(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->filename);
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  		// share the file with user3
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  		\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3, OCP\PERMISSION_ALL);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// check if share key for user2 exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
  
  		// login as user2
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3);
  
  		// get file contents
  		$retrievedCryptedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '/files/' . $this->filename);
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  		// check if data is the same as previously written
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
  
  		// cleanup
  		if ($withTeardown) {
  
  			// login as user1
  			\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  			// unshare the file with user2
  			\OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3);
  
  			// login as admin
  			\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
  
  			// unshare the file with user1
  			\OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  			// cleanup
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  			$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/');
  			$this->view->unlink($this->filename);
  			$this->view->chroot('/');
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  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  		}
  	}
  
  	/**
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  	 * @medium
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  	 * @param bool $withTeardown
  	 * @return array
  	 */
  	function testShareFolder($withTeardown = true) {
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// create folder structure
  		$this->view->mkdir('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files' . $this->folder1);
  		$this->view->mkdir(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files' . $this->folder1 . $this->subfolder);
  		$this->view->mkdir(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files' . $this->folder1 . $this->subfolder
  			. $this->subsubfolder);
  
  		// save file with content
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  		$cryptedFile = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/'  . $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
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  										 . $this->filename, $this->dataShort);
  
  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile));
  
  		// disable encryption proxy to prevent recursive calls
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  
  		// get the file info from previous created folder
  		$fileInfo = $this->view->getFileInfo(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files' . $this->folder1);
  
  		// check if we have a valid file info
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  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
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  		// re-enable the file proxy
  		\OC_FileProxy::$enabled = $proxyStatus;
  
  		// share the folder with user1
  		\OCP\Share::shareItem('folder', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, OCP\PERMISSION_ALL);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// check if share key for user1 exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  		// login as user1
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  		// get file contents
  		$retrievedCryptedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->folder1
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  			. $this->subfolder . $this->subsubfolder . '/' . $this->filename);
  
  		// check if data is the same
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
  
  		// cleanup
  		if ($withTeardown) {
  
  			// login as admin
  			\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  			// unshare the folder with user1
  			\OCP\Share::unshare('folder', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys'
  				. $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  			// cleanup
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  			$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files');
  			$this->view->unlink($this->folder1);
  			$this->view->chroot('/');
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  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys'
  				. $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  		}
  
  		return $fileInfo;
  	}
  
  	/**
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  	 * @medium
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  	 * @param bool $withTeardown
  	 */
  	function testReShareFolder($withTeardown = true) {
  		$fileInfoFolder1 = $this->testShareFolder(false);
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  		// login as user2
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  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  		// disable encryption proxy to prevent recursive calls
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  
  		// get the file info from previous created folder
  		$fileInfoSubFolder = $this->view->getFileInfo(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->folder1
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  			. $this->subfolder);
  
  		// check if we have a valid file info
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  		$this->assertTrue($fileInfoSubFolder instanceof \OC\Files\FileInfo);
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  		// re-enable the file proxy
  		\OC_FileProxy::$enabled = $proxyStatus;
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  		// share the file with user3
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  		\OCP\Share::shareItem('folder', $fileInfoSubFolder['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3, OCP\PERMISSION_ALL);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
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  		// check if share key for user3 exists
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  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
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  		// login as user3
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  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3);
  
  		// get file contents
  		$retrievedCryptedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '/files/' . $this->subfolder
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  			. $this->subsubfolder . '/' . $this->filename);
  
  		// check if data is the same
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
  
  		// get the file info
  		$fileInfo = $this->view->getFileInfo(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '/files/' . $this->subfolder
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  			. $this->subsubfolder . '/' . $this->filename);
  
  		// check if we have fileInfos
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  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
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  		// share the file with user3
  		\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4, OCP\PERMISSION_ALL);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// check if share key for user3 exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4 . '.shareKey'));
  
  		// login as user3
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4);
  
  		// get file contents
  		$retrievedCryptedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4 . '/files/' . $this->filename);
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  		// check if data is the same
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
  
  		// cleanup
  		if ($withTeardown) {
  
  			// login as user2
  			\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3);
  
  			// unshare the file with user3
  			\OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4);
  
  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys'
  				. $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4 . '.shareKey'));
  
  			// login as user1
  			\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  			// unshare the folder with user2
  			\OCP\Share::unshare('folder', $fileInfoSubFolder['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3);
  
  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys'
  				. $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
  
  			// login as admin
  			\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  			// unshare the folder1 with user1
  			\OCP\Share::unshare('folder', $fileInfoFolder1['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
  
  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys'
  				. $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  			// cleanup
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  			$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files');
  			$this->view->unlink($this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
  			$this->view->chroot('/');
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  			// check if share key not exists
  			$this->assertFalse($this->view->file_exists(
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys'
  				. $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
  				. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  		}
  	}
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  	function testPublicShareFile() {
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// save file with content
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  		$cryptedFile = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/'  . $this->filename, $this->dataShort);
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  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile));
  
  		// disable encryption proxy to prevent recursive calls
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  
  		// get the file info from previous created file
  		$fileInfo = $this->view->getFileInfo(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename);
  
  		// check if we have a valid file info
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  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
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  		// check if the unencrypted file size is stored
  		$this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
  
  		// re-enable the file proxy
  		\OC_FileProxy::$enabled = $proxyStatus;
  
  		// share the file
  		\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_LINK, false, OCP\PERMISSION_ALL);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
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  		$publicShareKeyId = \OC::$server->getAppConfig()->getValue('files_encryption', 'publicShareKeyId');
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  		// check if share key for public exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $publicShareKeyId . '.shareKey'));
  
  		// some hacking to simulate public link
  		$GLOBALS['app'] = 'files_sharing';
  		$GLOBALS['fileOwner'] = \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1;
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  		\OC_User::setUserId(false);
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  		// get file contents
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  		$retrievedCryptedFile = file_get_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/'  . $this->filename);
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  		// check if data is the same as we previously written
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
  
  		// tear down
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// unshare the file
  		\OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_LINK, null);
  
  		// check if share key not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $publicShareKeyId . '.shareKey'));
  
  		// cleanup
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  		$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/');
  		$this->view->unlink($this->filename);
  		$this->view->chroot('/');
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  		// check if share key not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  	}
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  	/**
  	 * @medium
  	 */
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  	function testShareFileWithGroup() {
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// save file with content
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  		$cryptedFile = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename, $this->dataShort);
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  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile));
  
  		// disable encryption proxy to prevent recursive calls
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  
  		// get the file info from previous created file
  		$fileInfo = $this->view->getFileInfo(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename);
  
  		// check if we have a valid file info
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  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
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  		// check if the unencrypted file size is stored
  		$this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
  
  		// re-enable the file proxy
  		\OC_FileProxy::$enabled = $proxyStatus;
  
  		// share the file
  		\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1, OCP\PERMISSION_ALL);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// check if share key for user2 and user3 exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4 . '.shareKey'));
  
  		// login as user1
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3);
  
  		// get file contents
  		$retrievedCryptedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '/files/' . $this->filename);
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  		// check if data is the same as we previously written
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// unshare the file
  		\OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1);
  
  		// check if share key not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER4 . '.shareKey'));
  
  		// cleanup
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  		$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/');
  		$this->view->unlink($this->filename);
  		$this->view->chroot('/');
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  		// check if share key not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  
  	}
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  	/**
  	 * @large
  	 */
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  	function testRecoveryFile() {
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  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		\OCA\Encryption\Helper::adminEnableRecovery(null, 'test123');
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  		$recoveryKeyId = \OC::$server->getAppConfig()->getValue('files_encryption', 'recoveryKeyId');
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  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
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  		$util = new \OCA\Encryption\Util(new \OC\Files\View('/'), \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
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  		// check if recovery password match
  		$this->assertTrue($util->checkRecoveryPassword('test123'));
  
  		// enable recovery for admin
  		$this->assertTrue($util->setRecoveryForUser(1));
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  		$util->addRecoveryKeys();
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  		// create folder structure
  		$this->view->mkdir('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files' . $this->folder1);
  		$this->view->mkdir(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files' . $this->folder1 . $this->subfolder);
  		$this->view->mkdir(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files' . $this->folder1 . $this->subfolder
  			. $this->subsubfolder);
  
  		// save file with content
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  		$cryptedFile1 = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename, $this->dataShort);
  		$cryptedFile2 = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
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  										  . $this->filename, $this->dataShort);
  
  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile1));
  		$this->assertTrue(is_int($cryptedFile2));
  
  		// check if share key for admin and recovery exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  
  		// disable recovery for admin
  		$this->assertTrue($util->setRecoveryForUser(0));
  
  		// remove all recovery keys
  		$util->removeRecoveryKeys('/');
  
  		// check if share key for recovery not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  
  		// enable recovery for admin
  		$this->assertTrue($util->setRecoveryForUser(1));
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  		// add recovery keys again
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  		$util->addRecoveryKeys('/');
  
  		// check if share key for admin and recovery exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  
  		// cleanup
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  		$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/');
  		$this->view->unlink($this->filename);
  		$this->view->unlink($this->folder1);
  		$this->view->chroot('/');
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  		// check if share key for recovery not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  
  		$this->assertTrue(\OCA\Encryption\Helper::adminEnableRecovery(null, 'test123'));
  		$this->assertTrue(\OCA\Encryption\Helper::adminDisableRecovery('test123'));
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  		$this->assertEquals(0, \OC::$server->getAppConfig()->getValue('files_encryption', 'recoveryAdminEnabled'));
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  	}
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  	/**
  	 * @large
  	 */
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  	function testRecoveryForUser() {
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  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
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  		$result = \OCA\Encryption\Helper::adminEnableRecovery(null, 'test123');
  		$this->assertTrue($result);
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  		$recoveryKeyId = \OC::$server->getAppConfig()->getValue('files_encryption', 'recoveryKeyId');
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  		// login as user2
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  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
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  		$util = new \OCA\Encryption\Util(new \OC\Files\View('/'), \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
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  		// enable recovery for admin
  		$this->assertTrue($util->setRecoveryForUser(1));
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  		// add recovery keys for existing files (e.g. the auto-generated welcome.txt)
  		$util->addRecoveryKeys();
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  		// create folder structure
  		$this->view->mkdir('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files' . $this->folder1);
  		$this->view->mkdir(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files' . $this->folder1 . $this->subfolder);
  		$this->view->mkdir(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files' . $this->folder1 . $this->subfolder
  			. $this->subsubfolder);
  
  		// save file with content
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  		$cryptedFile1 = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2. '/files/' . $this->filename, $this->dataShort);
  		$cryptedFile2 = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/'
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  										  . $this->filename, $this->dataShort);
  
  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile1));
  		$this->assertTrue(is_int($cryptedFile2));
  
  		// check if share key for user and recovery exists
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// change password
  		\OC_User::setPassword(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, 'test', 'test123');
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  		$params = array('uid' => \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2,
  			'password' => 'test',
  			'recoveryPassword' => 'test123');
  		\OCA\Encryption\Hooks::setPassphrase($params);
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  		// login as user2
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  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, false, 'test');
  
  		// get file contents
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  		$retrievedCryptedFile1 = file_get_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->filename);
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  		$retrievedCryptedFile2 = file_get_contents(
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  			'crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
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  		// check if data is the same as we previously written
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile1);
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile2);
  
  		// cleanup
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  		$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/');
  		$this->view->unlink($this->folder1);
  		$this->view->unlink($this->filename);
  		$this->view->chroot('/');
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  		// check if share key for user and recovery exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files_encryption/share-keys/' . $this->folder1
  			. $this->subfolder . $this->subsubfolder . '/'
  			. $this->filename . '.' . $recoveryKeyId . '.shareKey'));
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  		// enable recovery for admin
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  		$this->assertTrue($util->setRecoveryForUser(0));
  
  		\OCA\Encryption\Helper::adminDisableRecovery('test123');
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  		$this->assertEquals(0, \OC::$server->getAppConfig()->getValue('files_encryption', 'recoveryAdminEnabled'));
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  		//clean up, reset passwords
  		\OC_User::setPassword(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, 'test123');
  		$params = array('uid' => \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2,
  			'password' => \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2,
  			'recoveryPassword' => 'test123');
  		\OCA\Encryption\Hooks::setPassphrase($params);
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  	}
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  	/**
  	 * @medium
  	 */
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  	function testFailShareFile() {
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// save file with content
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  		$cryptedFile = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename, $this->dataShort);
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  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile));
  
  		// disable encryption proxy to prevent recursive calls
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  
  		// get the file info from previous created file
  		$fileInfo = $this->view->getFileInfo(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename);
  
  		// check if we have a valid file info
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  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
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  		// check if the unencrypted file size is stored
  		$this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
  
  		// break users public key
  		$this->view->rename('/public-keys/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.public.key',
  			'/public-keys/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.public.key_backup');
  
  		// re-enable the file proxy
  		\OC_FileProxy::$enabled = $proxyStatus;
  
  		// share the file
  		try {
  			\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1, OCP\PERMISSION_ALL);
  		} catch (Exception $e) {
  			$this->assertEquals(0, strpos($e->getMessage(), "Following users are not set up for encryption"));
  		}
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  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// check if share key for user1 not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
  
  		// disable encryption proxy to prevent recursive calls
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  
  		// break user1 public key
  		$this->view->rename(
  			'/public-keys/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.public.key_backup',
  			'/public-keys/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.public.key');
  
  		// remove share file
  		$this->view->unlink('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  							. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3
  							. '.shareKey');
  
  		// re-enable the file proxy
  		\OC_FileProxy::$enabled = $proxyStatus;
  
  		// unshare the file with user1
  		\OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_GROUP1);
  
  		// check if share key not exists
  		$this->assertFalse($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER3 . '.shareKey'));
  
  		// cleanup
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  		$this->view->chroot('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/');
  		$this->view->unlink($this->filename);
  		$this->view->chroot('/');
  	}
  
  
  	/**
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  	 * test moving a shared file out of the Shared folder
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  	 */
  	function testRename() {
  
  		// login as admin
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		// save file with content
  		$cryptedFile = file_put_contents('crypt:///' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename, $this->dataShort);
  
  		// test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile));
  
  		// get the file info from previous created file
  		$fileInfo = $this->view->getFileInfo(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename);
  
  		// check if we have a valid file info
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  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
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  		// share the file
  		\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, OCP\PERMISSION_ALL);
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  		// check if share key for user2 exists
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  		$this->assertTrue($this->view->file_exists(
  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files_encryption/share-keys/'
  			. $this->filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  
  		// login as user2
  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2);
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  		$this->assertTrue($this->view->file_exists('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->filename));
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  		// get file contents
  		$retrievedCryptedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->filename);
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  		// check if data is the same as we previously written
  		$this->assertEquals($this->dataShort, $retrievedCryptedFile);
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  		// move the file to a subfolder
  		$this->view->rename('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->filename,
  				'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->folder1 . $this->filename);
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  		// check if we can read the moved file
  		$retrievedRenamedFile = $this->view->file_get_contents(
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  			'/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '/files/' . $this->folder1 .  $this->filename);
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  		// check if data is the same as we previously written
  		$this->assertEquals($this->dataShort, $retrievedRenamedFile);
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  		// cleanup
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  		\Test_Encryption_Util::loginHelper(\Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  		$this->view->unlink('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1 . '/files/' . $this->filename);
  	}
  
  	/**
  	 * test if additional share keys are added if we move a folder to a shared parent
  	 * @medium
  	 */
  	function testMoveFolder() {
  
  		$view = new \OC\Files\View('/' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER1);
  
  		$filename = '/tmp-' . uniqid();
  		$folder = '/folder' . uniqid();
  
  		\OC\Files\Filesystem::mkdir($folder);
  
  		// Save long data as encrypted file using stream wrapper
  		$cryptedFile = \OC\Files\Filesystem::file_put_contents($folder . $filename, $this->dataShort);
  
  		// Test that data was successfully written
  		$this->assertTrue(is_int($cryptedFile));
  
  		// Get file decrypted contents
  		$decrypt = \OC\Files\Filesystem::file_get_contents($folder . $filename);
  
  		$this->assertEquals($this->dataShort, $decrypt);
  
  		$newFolder = '/newfolder/subfolder' . uniqid();
  		\OC\Files\Filesystem::mkdir('/newfolder');
  
  		// get the file info from previous created file
  		$fileInfo = \OC\Files\Filesystem::getFileInfo('/newfolder');
  		$this->assertTrue($fileInfo instanceof \OC\Files\FileInfo);
  
  		// share the folder
  		\OCP\Share::shareItem('folder', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2, OCP\PERMISSION_ALL);
  
  		\OC\Files\Filesystem::rename($folder, $newFolder);
  
  		// Get file decrypted contents
  		$newDecrypt = \OC\Files\Filesystem::file_get_contents($newFolder . $filename);
  		$this->assertEquals($this->dataShort, $newDecrypt);
  
  		// check if additional share key for user2 exists
  		$this->assertTrue($view->file_exists('files_encryption/share-keys' . $newFolder . '/' . $filename . '.' . \Test_Encryption_Share::TEST_ENCRYPTION_SHARE_USER2 . '.shareKey'));
  
  		// tear down
  		\OC\Files\Filesystem::unlink($newFolder);
  		\OC\Files\Filesystem::unlink('/newfolder');
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  	}
  
  }