677 lines
19 KiB
PHP
Executable File
677 lines
19 KiB
PHP
Executable File
<?php
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/**
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* Copyright (c) 2012 Sam Tuke <samtuke@owncloud.com>, and
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* Robin Appelman <icewind@owncloud.com>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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require_once __DIR__ . '/../3rdparty/Crypt_Blowfish/Blowfish.php';
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require_once __DIR__ . '/../../../lib/base.php';
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require_once __DIR__ . '/../lib/crypt.php';
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require_once __DIR__ . '/../lib/keymanager.php';
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require_once __DIR__ . '/../lib/proxy.php';
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require_once __DIR__ . '/../lib/stream.php';
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require_once __DIR__ . '/../lib/util.php';
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require_once __DIR__ . '/../lib/helper.php';
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require_once __DIR__ . '/../appinfo/app.php';
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require_once __DIR__ . '/util.php';
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use OCA\Encryption;
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/**
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* Class Test_Encryption_Crypt
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*/
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class Test_Encryption_Crypt extends \PHPUnit_Framework_TestCase {
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const TEST_ENCRYPTION_CRYPT_USER1 = "test-crypt-user1";
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public $userId;
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public $pass;
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public $stateFilesTrashbin;
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public $dataLong;
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public $dataUrl;
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public $dataShort;
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/**
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* @var OC\Files\View
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*/
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public $view;
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public $legacyEncryptedData;
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public $genPrivateKey;
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public $genPublicKey;
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public static function setUpBeforeClass() {
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// reset backend
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\OC_User::clearBackends();
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\OC_User::useBackend('database');
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// Filesystem related hooks
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\OCA\Encryption\Helper::registerFilesystemHooks();
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// Filesystem related hooks
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\OCA\Encryption\Helper::registerUserHooks();
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// clear and register hooks
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\OC_FileProxy::clearProxies();
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\OC_FileProxy::register(new OCA\Encryption\Proxy());
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// create test user
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\Test_Encryption_Util::loginHelper(\Test_Encryption_Crypt::TEST_ENCRYPTION_CRYPT_USER1, true);
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}
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function setUp() {
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// set user id
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\OC_User::setUserId(\Test_Encryption_Crypt::TEST_ENCRYPTION_CRYPT_USER1);
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$this->userId = \Test_Encryption_Crypt::TEST_ENCRYPTION_CRYPT_USER1;
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$this->pass = \Test_Encryption_Crypt::TEST_ENCRYPTION_CRYPT_USER1;
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// set content for encrypting / decrypting in tests
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$this->dataLong = file_get_contents(__DIR__ . '/../lib/crypt.php');
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$this->dataShort = 'hats';
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$this->dataUrl = __DIR__ . '/../lib/crypt.php';
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$this->legacyData = __DIR__ . '/legacy-text.txt';
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$this->legacyEncryptedData = __DIR__ . '/legacy-encrypted-text.txt';
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$this->legacyEncryptedDataKey = __DIR__ . '/encryption.key';
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$this->randomKey = Encryption\Crypt::generateKey();
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$keypair = Encryption\Crypt::createKeypair();
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$this->genPublicKey = $keypair['publicKey'];
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$this->genPrivateKey = $keypair['privateKey'];
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$this->view = new \OC\Files\View('/');
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// remember files_trashbin state
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$this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
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// we don't want to tests with app files_trashbin enabled
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\OC_App::disable('files_trashbin');
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}
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function tearDown() {
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// reset app files_trashbin
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if ($this->stateFilesTrashbin) {
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OC_App::enable('files_trashbin');
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} else {
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OC_App::disable('files_trashbin');
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}
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}
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public static function tearDownAfterClass() {
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// cleanup test user
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\OC_User::deleteUser(\Test_Encryption_Crypt::TEST_ENCRYPTION_CRYPT_USER1);
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}
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/**
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* @medium
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*/
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function testGenerateKey() {
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# TODO: use more accurate (larger) string length for test confirmation
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$key = Encryption\Crypt::generateKey();
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$this->assertTrue(strlen($key) > 16);
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}
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function testDecryptPrivateKey() {
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// test successful decrypt
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$crypted = Encryption\Crypt::symmetricEncryptFileContent($this->genPrivateKey, 'hat');
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$decrypted = Encryption\Crypt::decryptPrivateKey($crypted, 'hat');
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$this->assertEquals($this->genPrivateKey, $decrypted);
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//test private key decrypt with wrong password
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$wrongPasswd = Encryption\Crypt::decryptPrivateKey($crypted, 'hat2');
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$this->assertEquals(false, $wrongPasswd);
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}
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/**
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* @medium
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*/
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function testSymmetricEncryptFileContent() {
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# TODO: search in keyfile for actual content as IV will ensure this test always passes
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$crypted = Encryption\Crypt::symmetricEncryptFileContent($this->dataShort, 'hat');
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$this->assertNotEquals($this->dataShort, $crypted);
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$decrypt = Encryption\Crypt::symmetricDecryptFileContent($crypted, 'hat');
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$this->assertEquals($this->dataShort, $decrypt);
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}
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/**
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* @medium
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*/
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function testSymmetricStreamEncryptShortFileContent() {
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$filename = 'tmp-' . uniqid() . '.test';
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$util = new Encryption\Util(new \OC\Files\View(), $this->userId);
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$cryptedFile = file_put_contents('crypt:///' . $this->userId . '/files/'. $filename, $this->dataShort);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Disable encryption proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
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\OC_FileProxy::$enabled = false;
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// Get file contents without using any wrapper to get it's actual contents on disk
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$retreivedCryptedFile = $this->view->file_get_contents($this->userId . '/files/' . $filename);
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// Re-enable proxy - our work is done
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\OC_FileProxy::$enabled = $proxyStatus;
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// Check that the file was encrypted before being written to disk
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$this->assertNotEquals($this->dataShort, $retreivedCryptedFile);
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// Get the encrypted keyfile
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$encKeyfile = Encryption\Keymanager::getFileKey($this->view, $util, $filename);
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// Attempt to fetch the user's shareKey
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$shareKey = Encryption\Keymanager::getShareKey($this->view, $this->userId, $util, $filename);
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// get session
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$session = new \OCA\Encryption\Session($this->view);
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// get private key
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$privateKey = $session->getPrivateKey($this->userId);
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// Decrypt keyfile with shareKey
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$plainKeyfile = Encryption\Crypt::multiKeyDecrypt($encKeyfile, $shareKey, $privateKey);
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// Manually decrypt
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$manualDecrypt = Encryption\Crypt::symmetricDecryptFileContent($retreivedCryptedFile, $plainKeyfile);
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// Check that decrypted data matches
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$this->assertEquals($this->dataShort, $manualDecrypt);
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// Teardown
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$this->view->unlink($this->userId . '/files/' . $filename);
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Encryption\Keymanager::deleteFileKey($this->view, $filename);
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}
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/**
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* @medium
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* Test that data that is written by the crypto stream wrapper
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* @note Encrypted data is manually prepared and decrypted here to avoid dependency on success of stream_read
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* @note If this test fails with truncate content, check that enough array slices are being rejoined to form $e, as the crypt.php file may have gotten longer and broken the manual
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* reassembly of its data
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*/
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function testSymmetricStreamEncryptLongFileContent() {
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// Generate a a random filename
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$filename = 'tmp-' . uniqid() . '.test';
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$util = new Encryption\Util(new \OC\Files\View(), $this->userId);
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// Save long data as encrypted file using stream wrapper
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$cryptedFile = file_put_contents('crypt:///' . $this->userId . '/files/' . $filename, $this->dataLong . $this->dataLong);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Disable encryption proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
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\OC_FileProxy::$enabled = false;
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// Get file contents without using any wrapper to get it's actual contents on disk
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$retreivedCryptedFile = $this->view->file_get_contents($this->userId . '/files/' . $filename);
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// Re-enable proxy - our work is done
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\OC_FileProxy::$enabled = $proxyStatus;
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// Check that the file was encrypted before being written to disk
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$this->assertNotEquals($this->dataLong . $this->dataLong, $retreivedCryptedFile);
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// Manuallly split saved file into separate IVs and encrypted chunks
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$r = preg_split('/(00iv00.{16,18})/', $retreivedCryptedFile, NULL, PREG_SPLIT_DELIM_CAPTURE);
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//print_r($r);
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// Join IVs and their respective data chunks
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$e = array();
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$i = 0;
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while ($i < count($r)-1) {
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$e[] = $r[$i] . $r[$i+1];
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$i = $i + 2;
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}
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//print_r($e);
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// Get the encrypted keyfile
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$encKeyfile = Encryption\Keymanager::getFileKey($this->view, $util, $filename);
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// Attempt to fetch the user's shareKey
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$shareKey = Encryption\Keymanager::getShareKey($this->view, $this->userId, $util, $filename);
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// get session
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$session = new \OCA\Encryption\Session($this->view);
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// get private key
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$privateKey = $session->getPrivateKey($this->userId);
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// Decrypt keyfile with shareKey
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$plainKeyfile = Encryption\Crypt::multiKeyDecrypt($encKeyfile, $shareKey, $privateKey);
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// Set var for reassembling decrypted content
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$decrypt = '';
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// Manually decrypt chunk
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foreach ($e as $chunk) {
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$chunkDecrypt = Encryption\Crypt::symmetricDecryptFileContent($chunk, $plainKeyfile);
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// Assemble decrypted chunks
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$decrypt .= $chunkDecrypt;
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}
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$this->assertEquals($this->dataLong . $this->dataLong, $decrypt);
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// Teardown
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$this->view->unlink($this->userId . '/files/' . $filename);
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Encryption\Keymanager::deleteFileKey($this->view, $filename);
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}
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/**
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* @medium
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* Test that data that is read by the crypto stream wrapper
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*/
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function testSymmetricStreamDecryptShortFileContent() {
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$filename = 'tmp-' . uniqid();
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// Save long data as encrypted file using stream wrapper
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$cryptedFile = file_put_contents('crypt:///'. $this->userId . '/files/' . $filename, $this->dataShort);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Disable encryption proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
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\OC_FileProxy::$enabled = false;
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$this->assertTrue(Encryption\Crypt::isEncryptedMeta($filename));
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\OC_FileProxy::$enabled = $proxyStatus;
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// Get file decrypted contents
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$decrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $filename);
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$this->assertEquals($this->dataShort, $decrypt);
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// tear down
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$this->view->unlink($this->userId . '/files/' . $filename);
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}
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/**
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* @medium
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*/
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function testSymmetricStreamDecryptLongFileContent() {
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$filename = 'tmp-' . uniqid();
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// Save long data as encrypted file using stream wrapper
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$cryptedFile = file_put_contents('crypt:///' . $this->userId . '/files/' . $filename, $this->dataLong);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Get file decrypted contents
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$decrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $filename);
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$this->assertEquals($this->dataLong, $decrypt);
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// tear down
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$this->view->unlink($this->userId . '/files/' . $filename);
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}
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/**
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* @medium
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*/
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function testIsEncryptedContent() {
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$this->assertFalse(Encryption\Crypt::isCatfileContent($this->dataUrl));
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$this->assertFalse(Encryption\Crypt::isCatfileContent($this->legacyEncryptedData));
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$keyfileContent = Encryption\Crypt::symmetricEncryptFileContent($this->dataUrl, 'hat');
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$this->assertTrue(Encryption\Crypt::isCatfileContent($keyfileContent));
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}
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/**
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* @large
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*/
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function testMultiKeyEncrypt() {
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# TODO: search in keyfile for actual content as IV will ensure this test always passes
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$pair1 = Encryption\Crypt::createKeypair();
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$this->assertEquals(2, count($pair1));
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$this->assertTrue(strlen($pair1['publicKey']) > 1);
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$this->assertTrue(strlen($pair1['privateKey']) > 1);
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$crypted = Encryption\Crypt::multiKeyEncrypt($this->dataShort, array($pair1['publicKey']));
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$this->assertNotEquals($this->dataShort, $crypted['data']);
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$decrypt = Encryption\Crypt::multiKeyDecrypt($crypted['data'], $crypted['keys'][0], $pair1['privateKey']);
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$this->assertEquals($this->dataShort, $decrypt);
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}
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/**
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* @medium
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* test decryption using legacy blowfish method
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*/
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function testLegacyDecryptShort() {
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$crypted = $this->legacyEncrypt($this->dataShort, $this->pass);
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$decrypted = Encryption\Crypt::legacyBlockDecrypt($crypted, $this->pass);
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$this->assertEquals($this->dataShort, $decrypted);
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}
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/**
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* @medium
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* test decryption using legacy blowfish method
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*/
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function testLegacyDecryptLong() {
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$crypted = $this->legacyEncrypt($this->dataLong, $this->pass);
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$decrypted = Encryption\Crypt::legacyBlockDecrypt($crypted, $this->pass);
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$this->assertEquals($this->dataLong, $decrypted);
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}
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/**
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* @medium
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*/
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function testRenameFile() {
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$filename = 'tmp-' . uniqid();
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// Save long data as encrypted file using stream wrapper
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$cryptedFile = file_put_contents('crypt:///' . $this->userId . '/files/' . $filename, $this->dataLong);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Get file decrypted contents
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$decrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $filename);
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$this->assertEquals($this->dataLong, $decrypt);
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$newFilename = 'tmp-new-' . uniqid();
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$view = new \OC\Files\View('/' . $this->userId . '/files');
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$view->rename($filename, $newFilename);
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// Get file decrypted contents
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$newDecrypt = file_get_contents('crypt:///'. $this->userId . '/files/' . $newFilename);
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$this->assertEquals($this->dataLong, $newDecrypt);
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// tear down
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$view->unlink($newFilename);
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}
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/**
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* @medium
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*/
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function testMoveFileIntoFolder() {
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$filename = 'tmp-' . uniqid();
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// Save long data as encrypted file using stream wrapper
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$cryptedFile = file_put_contents('crypt:///' . $this->userId . '/files/' . $filename, $this->dataLong);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Get file decrypted contents
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$decrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $filename);
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$this->assertEquals($this->dataLong, $decrypt);
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$newFolder = '/newfolder' . uniqid();
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$newFilename = 'tmp-new-' . uniqid();
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$view = new \OC\Files\View('/' . $this->userId . '/files');
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$view->mkdir($newFolder);
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$view->rename($filename, $newFolder . '/' . $newFilename);
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// Get file decrypted contents
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$newDecrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $newFolder . '/' . $newFilename);
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$this->assertEquals($this->dataLong, $newDecrypt);
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// tear down
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$view->unlink($newFolder);
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}
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/**
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* @medium
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*/
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function testMoveFolder() {
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$view = new \OC\Files\View('/' . $this->userId . '/files');
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$filename = '/tmp-' . uniqid();
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$folder = '/folder' . uniqid();
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$view->mkdir($folder);
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// Save long data as encrypted file using stream wrapper
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$cryptedFile = file_put_contents('crypt:///' . $this->userId . '/files/' . $folder . $filename, $this->dataLong);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Get file decrypted contents
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$decrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $folder . $filename);
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$this->assertEquals($this->dataLong, $decrypt);
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$newFolder = '/newfolder/subfolder' . uniqid();
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$view->mkdir('/newfolder');
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$view->rename($folder, $newFolder);
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// Get file decrypted contents
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$newDecrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $newFolder . $filename);
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$this->assertEquals($this->dataLong, $newDecrypt);
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// tear down
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$view->unlink($newFolder);
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$view->unlink('/newfolder');
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}
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/**
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* @medium
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*/
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function testChangePassphrase() {
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$filename = 'tmp-' . uniqid();
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// Save long data as encrypted file using stream wrapper
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$cryptedFile = file_put_contents('crypt:///' . $this->userId . '/files/' . $filename, $this->dataLong);
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// Test that data was successfully written
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$this->assertTrue(is_int($cryptedFile));
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// Get file decrypted contents
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$decrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $filename);
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|
|
$this->assertEquals($this->dataLong, $decrypt);
|
|
|
|
// change password
|
|
\OC_User::setPassword($this->userId, 'test', null);
|
|
|
|
// relogin
|
|
$params['uid'] = $this->userId;
|
|
$params['password'] = 'test';
|
|
OCA\Encryption\Hooks::login($params);
|
|
|
|
// Get file decrypted contents
|
|
$newDecrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $filename);
|
|
|
|
$this->assertEquals($this->dataLong, $newDecrypt);
|
|
|
|
// tear down
|
|
// change password back
|
|
\OC_User::setPassword($this->userId, $this->pass);
|
|
$view = new \OC\Files\View('/' . $this->userId . '/files');
|
|
$view->unlink($filename);
|
|
}
|
|
|
|
/**
|
|
* @medium
|
|
*/
|
|
function testViewFilePutAndGetContents() {
|
|
|
|
$filename = '/tmp-' . uniqid();
|
|
$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));
|
|
|
|
// Get file decrypted contents
|
|
$decrypt = $view->file_get_contents($filename);
|
|
|
|
$this->assertEquals($this->dataShort, $decrypt);
|
|
|
|
// Save long data as encrypted file using stream wrapper
|
|
$cryptedFileLong = $view->file_put_contents($filename, $this->dataLong);
|
|
|
|
// Test that data was successfully written
|
|
$this->assertTrue(is_int($cryptedFileLong));
|
|
|
|
// Get file decrypted contents
|
|
$decryptLong = $view->file_get_contents($filename);
|
|
|
|
$this->assertEquals($this->dataLong, $decryptLong);
|
|
|
|
// tear down
|
|
$view->unlink($filename);
|
|
}
|
|
|
|
/**
|
|
* @large
|
|
*/
|
|
function testTouchExistingFile() {
|
|
$filename = '/tmp-' . uniqid();
|
|
$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));
|
|
|
|
$view->touch($filename);
|
|
|
|
// Get file decrypted contents
|
|
$decrypt = $view->file_get_contents($filename);
|
|
|
|
$this->assertEquals($this->dataShort, $decrypt);
|
|
|
|
// tear down
|
|
$view->unlink($filename);
|
|
}
|
|
|
|
/**
|
|
* @medium
|
|
*/
|
|
function testTouchFile() {
|
|
$filename = '/tmp-' . uniqid();
|
|
$view = new \OC\Files\View('/' . $this->userId . '/files');
|
|
|
|
$view->touch($filename);
|
|
|
|
// 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));
|
|
|
|
// Get file decrypted contents
|
|
$decrypt = $view->file_get_contents($filename);
|
|
|
|
$this->assertEquals($this->dataShort, $decrypt);
|
|
|
|
// tear down
|
|
$view->unlink($filename);
|
|
}
|
|
|
|
/**
|
|
* @medium
|
|
*/
|
|
function testFopenFile() {
|
|
$filename = '/tmp-' . uniqid();
|
|
$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');
|
|
|
|
// Get file decrypted contents
|
|
$decrypt = fgets($handle);
|
|
|
|
$this->assertEquals($this->dataShort, $decrypt);
|
|
|
|
// tear down
|
|
$view->unlink($filename);
|
|
}
|
|
|
|
|
|
/**
|
|
* encryption using legacy blowfish method
|
|
* @param string $data data to encrypt
|
|
* @param string $passwd password
|
|
* @return string
|
|
*/
|
|
function legacyEncrypt($data, $passwd) {
|
|
|
|
$bf = new Legacy_Crypt_Blowfish($passwd);
|
|
$crypted = $bf->encrypt($data);
|
|
|
|
return $crypted;
|
|
}
|
|
|
|
}
|