nextcloud/apps/files_encryption/tests/keymanager.php

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<?php
/**
* Copyright (c) 2012 Sam Tuke <samtuke@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
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';
use OCA\Encryption;
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/**
* Class Test_Encryption_Keymanager
*/
class Test_Encryption_Keymanager extends \PHPUnit_Framework_TestCase {
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const TEST_USER = "test-keymanager-user";
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public $userId;
public $pass;
public $stateFilesTrashbin;
/**
* @var OC_FilesystemView
*/
public $view;
public $randomKey;
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public $dataShort;
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public static function setUpBeforeClass() {
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// reset backend
\OC_User::clearBackends();
\OC_User::useBackend('database');
// Filesystem related hooks
\OCA\Encryption\Helper::registerFilesystemHooks();
// clear and register hooks
\OC_FileProxy::clearProxies();
\OC_FileProxy::register(new OCA\Encryption\Proxy());
// disable file proxy by default
\OC_FileProxy::$enabled = false;
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// create test user
\OC_User::deleteUser(\Test_Encryption_Keymanager::TEST_USER);
\Test_Encryption_Util::loginHelper(\Test_Encryption_Keymanager::TEST_USER, true);
}
function setUp() {
// set content for encrypting / decrypting in tests
$this->dataLong = file_get_contents(__DIR__ . '/../lib/crypt.php');
$this->dataShort = 'hats';
$this->dataUrl = __DIR__ . '/../lib/crypt.php';
$this->legacyData = __DIR__ . '/legacy-text.txt';
$this->legacyEncryptedData = __DIR__ . '/legacy-encrypted-text.txt';
$this->randomKey = Encryption\Crypt::generateKey();
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$keypair = Encryption\Crypt::createKeypair();
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$this->genPublicKey = $keypair['publicKey'];
$this->genPrivateKey = $keypair['privateKey'];
$this->view = new \OC_FilesystemView('/');
\OC_User::setUserId(\Test_Encryption_Keymanager::TEST_USER);
$this->userId = \Test_Encryption_Keymanager::TEST_USER;
$this->pass = \Test_Encryption_Keymanager::TEST_USER;
$userHome = \OC_User::getHome($this->userId);
$this->dataDir = str_replace('/' . $this->userId, '', $userHome);
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// remember files_trashbin state
$this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
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// we don't want to tests with app files_trashbin enabled
\OC_App::disable('files_trashbin');
}
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function tearDown() {
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// reset app files_trashbin
if ($this->stateFilesTrashbin) {
OC_App::enable('files_trashbin');
}
else {
OC_App::disable('files_trashbin');
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}
}
public static function tearDownAfterClass() {
\OC_FileProxy::$enabled = true;
// cleanup test user
\OC_User::deleteUser(\Test_Encryption_Keymanager::TEST_USER);
}
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/**
* @medium
*/
function testGetPrivateKey() {
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$key = Encryption\Keymanager::getPrivateKey($this->view, $this->userId);
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$privateKey = Encryption\Crypt::symmetricDecryptFileContent($key, $this->pass);
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$res = openssl_pkey_get_private($privateKey);
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$this->assertTrue(is_resource($res));
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$sslInfo = openssl_pkey_get_details($res);
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$this->assertArrayHasKey('key', $sslInfo);
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}
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/**
* @medium
*/
function testGetPublicKey() {
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$publiceKey = Encryption\Keymanager::getPublicKey($this->view, $this->userId);
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$res = openssl_pkey_get_public($publiceKey);
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$this->assertTrue(is_resource($res));
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$sslInfo = openssl_pkey_get_details($res);
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$this->assertArrayHasKey('key', $sslInfo);
}
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/**
* @medium
*/
function testSetFileKey() {
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$key = $this->randomKey;
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$file = 'unittest-' . time() . '.txt';
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// Disable encryption proxy to prevent recursive calls
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = false;
$this->view->file_put_contents($this->userId . '/files/' . $file, $this->dataShort);
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Encryption\Keymanager::setFileKey($this->view, $file, $this->userId, $key);
$this->assertTrue($this->view->file_exists('/' . $this->userId . '/files_encryption/keyfiles/' . $file . '.key'));
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// cleanup
$this->view->unlink('/' . $this->userId . '/files/' . $file);
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// change encryption proxy to previous state
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\OC_FileProxy::$enabled = $proxyStatus;
}
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/**
* @medium
*/
function testGetUserKeys() {
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$keys = Encryption\Keymanager::getUserKeys($this->view, $this->userId);
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$resPublic = openssl_pkey_get_public($keys['publicKey']);
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$this->assertTrue(is_resource($resPublic));
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$sslInfoPublic = openssl_pkey_get_details($resPublic);
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$this->assertArrayHasKey('key', $sslInfoPublic);
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$privateKey = Encryption\Crypt::symmetricDecryptFileContent($keys['privateKey'], $this->pass);
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$resPrivate = openssl_pkey_get_private($privateKey);
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$this->assertTrue(is_resource($resPrivate));
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$sslInfoPrivate = openssl_pkey_get_details($resPrivate);
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$this->assertArrayHasKey('key', $sslInfoPrivate);
}
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/**
* @medium
*/
function testRecursiveDelShareKeys() {
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// generate filename
$filename = '/tmp-' . time() . '.txt';
// create folder structure
$this->view->mkdir('/'.Test_Encryption_Keymanager::TEST_USER.'/files/folder1');
$this->view->mkdir('/'.Test_Encryption_Keymanager::TEST_USER.'/files/folder1/subfolder');
$this->view->mkdir('/'.Test_Encryption_Keymanager::TEST_USER.'/files/folder1/subfolder/subsubfolder');
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// enable encryption proxy
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = true;
// save file with content
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$cryptedFile = file_put_contents('crypt:///'.Test_Encryption_Keymanager::TEST_USER.'/files/folder1/subfolder/subsubfolder' . $filename, $this->dataShort);
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// test that data was successfully written
$this->assertTrue(is_int($cryptedFile));
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// change encryption proxy to previous state
\OC_FileProxy::$enabled = $proxyStatus;
// recursive delete keys
Encryption\Keymanager::delShareKey($this->view, array('admin'), '/folder1/');
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// check if share key not exists
$this->assertFalse($this->view->file_exists(
'/admin/files_encryption/share-keys/folder1/subfolder/subsubfolder/' . $filename . '.admin.shareKey'));
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// enable encryption proxy
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = true;
// cleanup
$this->view->unlink('/admin/files/folder1');
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// change encryption proxy to previous state
\OC_FileProxy::$enabled = $proxyStatus;
}
}