f09c19c316
The cache isn't cleared properly because unlink() doesn't remove the cache entry which caused side-effects when reusing the same file name (which randomly happens when time() returns the same value) This fix first makes sure the unit tests don't fail any more. The unlink() case with the cache will be investigated separately.
676 lines
19 KiB
PHP
Executable file
676 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_FilesystemView
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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_FilesystemView('/');
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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_FilesystemView(), $this->userId);
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$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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* @brief 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_FilesystemView(), $this->userId);
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// Save long data as encrypted file using stream wrapper
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$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, $filename);
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}
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/**
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* @medium
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* @brief Test that data that is read by the crypto stream wrapper
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*/
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function testSymmetricStreamDecryptShortFileContent() {
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$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, $decrypt);
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}
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/**
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* @medium
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* @brief test decryption using legacy blowfish method
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*/
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function testLegacyDecryptShort() {
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$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, $decrypted);
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}
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/**
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* @medium
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* @brief test decryption using legacy blowfish method
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*/
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function testLegacyDecryptLong() {
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$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
|
|
$this->assertTrue(is_int($cryptedFile));
|
|
|
|
// Get file decrypted contents
|
|
$decrypt = file_get_contents('crypt:///' . $this->userId . '/files/' . $filename);
|
|
|
|
$this->assertEquals($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);
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief encryption using legacy blowfish method
|
|
* @param $data string data to encrypt
|
|
* @param $passwd string password
|
|
* @return string
|
|
*/
|
|
function legacyEncrypt($data, $passwd) {
|
|
|
|
$bf = new \Crypt_Blowfish($passwd);
|
|
$crypted = $bf->encrypt($data);
|
|
|
|
return $crypted;
|
|
}
|
|
|
|
}
|