From d1977b8d25030181ee7e115005f35b25654b1ecc Mon Sep 17 00:00:00 2001
From: provokateurin <kate@provokateurin.de>
Date: Tue, 1 Oct 2024 15:07:36 +0200
Subject: [PATCH] refactor(Stream\Encryption): Migrate to strong types

Signed-off-by: provokateurin <kate@provokateurin.de>
---
 lib/private/Files/Stream/Encryption.php   | 116 ++++++++--------------
 tests/lib/Files/Stream/EncryptionTest.php |  64 +++++++-----
 2 files changed, 80 insertions(+), 100 deletions(-)

diff --git a/lib/private/Files/Stream/Encryption.php b/lib/private/Files/Stream/Encryption.php
index 8f08f925da0..10df9ae98e2 100644
--- a/lib/private/Files/Stream/Encryption.php
+++ b/lib/private/Files/Stream/Encryption.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
@@ -9,81 +11,42 @@ namespace OC\Files\Stream;
 
 use Icewind\Streams\Wrapper;
 use OC\Encryption\Exceptions\EncryptionHeaderKeyExistsException;
+use OC\Encryption\File;
+use OC\Encryption\Util;
+use OC\Files\Storage\Storage;
+use OCP\Encryption\IEncryptionModule;
 use function is_array;
 use function stream_context_create;
 
 class Encryption extends Wrapper {
-	/** @var \OC\Encryption\Util */
-	protected $util;
-
-	/** @var \OC\Encryption\File */
-	protected $file;
-
-	/** @var \OCP\Encryption\IEncryptionModule */
-	protected $encryptionModule;
-
-	/** @var \OC\Files\Storage\Storage */
-	protected $storage;
-
-	/** @var \OC\Files\Storage\Wrapper\Encryption */
-	protected $encryptionStorage;
-
-	/** @var string */
-	protected $internalPath;
-
-	/** @var string */
-	protected $cache;
-
-	/** @var integer */
-	protected $size;
-
-	/** @var integer */
-	protected $position;
-
-	/** @var integer */
-	protected $unencryptedSize;
-
-	/** @var integer */
-	protected $headerSize;
-
-	/** @var integer */
-	protected $unencryptedBlockSize;
-
-	/** @var array */
-	protected $header;
-
-	/** @var string */
-	protected $fullPath;
-
-	/** @var bool */
-	protected $signed;
-
+	protected Util $util;
+	protected File $file;
+	protected IEncryptionModule $encryptionModule;
+	protected Storage $storage;
+	protected \OC\Files\Storage\Wrapper\Encryption $encryptionStorage;
+	protected string $internalPath;
+	protected string $cache;
+	protected ?int $size = null;
+	protected int $position;
+	protected ?int $unencryptedSize = null;
+	protected int $headerSize;
+	protected int $unencryptedBlockSize;
+	protected array $header;
+	protected string $fullPath;
+	protected bool $signed;
 	/**
 	 * header data returned by the encryption module, will be written to the file
 	 * in case of a write operation
-	 *
-	 * @var array
 	 */
-	protected $newHeader;
-
+	protected array $newHeader;
 	/**
 	 * user who perform the read/write operation null for public access
-	 *
-	 * @var string
 	 */
-	protected $uid;
-
-	/** @var bool */
-	protected $readOnly;
-
-	/** @var bool */
-	protected $writeFlag;
-
-	/** @var array */
-	protected $expectedContextProperties;
-
-	/** @var bool */
-	protected $fileUpdated;
+	protected string $uid;
+	protected bool $readOnly;
+	protected bool $writeFlag;
+	protected array $expectedContextProperties;
+	protected bool $fileUpdated;
 
 	public function __construct() {
 		$this->expectedContextProperties = [
@@ -113,11 +76,11 @@ class Encryption extends Wrapper {
 	 * @param string $fullPath relative to data/
 	 * @param array $header
 	 * @param string $uid
-	 * @param \OCP\Encryption\IEncryptionModule $encryptionModule
-	 * @param \OC\Files\Storage\Storage $storage
+	 * @param IEncryptionModule $encryptionModule
+	 * @param Storage $storage
 	 * @param \OC\Files\Storage\Wrapper\Encryption $encStorage
-	 * @param \OC\Encryption\Util $util
-	 * @param \OC\Encryption\File $file
+	 * @param Util $util
+	 * @param File $file
 	 * @param string $mode
 	 * @param int|float $size
 	 * @param int|float $unencryptedSize
@@ -128,19 +91,24 @@ class Encryption extends Wrapper {
 	 *
 	 * @throws \BadMethodCallException
 	 */
-	public static function wrap($source, $internalPath, $fullPath, array $header,
+	public static function wrap(
+		$source,
+		$internalPath,
+		$fullPath,
+		array $header,
 		$uid,
-		\OCP\Encryption\IEncryptionModule $encryptionModule,
-		\OC\Files\Storage\Storage $storage,
+		IEncryptionModule $encryptionModule,
+		Storage $storage,
 		\OC\Files\Storage\Wrapper\Encryption $encStorage,
-		\OC\Encryption\Util $util,
-		\OC\Encryption\File $file,
+		Util $util,
+		File $file,
 		$mode,
 		$size,
 		$unencryptedSize,
 		$headerSize,
 		$signed,
-		$wrapper = Encryption::class) {
+		$wrapper = Encryption::class,
+	) {
 		$context = stream_context_create([
 			'ocencryption' => [
 				'source' => $source,
diff --git a/tests/lib/Files/Stream/EncryptionTest.php b/tests/lib/Files/Stream/EncryptionTest.php
index 419c1a752d0..36e72ea764a 100644
--- a/tests/lib/Files/Stream/EncryptionTest.php
+++ b/tests/lib/Files/Stream/EncryptionTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
@@ -7,27 +10,27 @@
 namespace Test\Files\Stream;
 
 use OC\Files\Cache\CacheEntry;
+use OC\Files\Storage\Wrapper\Wrapper;
 use OC\Files\View;
 use OC\Memcache\ArrayCache;
+use OCP\Encryption\IEncryptionModule;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\Cache\ICache;
 use OCP\ICacheFactory;
 use OCP\IConfig;
+use PHPUnit\Framework\MockObject\MockObject;
 use Psr\Log\LoggerInterface;
 
 class EncryptionTest extends \Test\TestCase {
 	public const DEFAULT_WRAPPER = '\OC\Files\Stream\Encryption';
 
-	/** @var \OCP\Encryption\IEncryptionModule | \PHPUnit\Framework\MockObject\MockObject */
-	private $encryptionModule;
+	private IEncryptionModule&MockObject $encryptionModule;
 
 	/**
-	 * @param string $fileName
-	 * @param string $mode
-	 * @param integer $unencryptedSize
+	 * @param class-string<Wrapper> $wrapper
 	 * @return resource
 	 */
-	protected function getStream($fileName, $mode, $unencryptedSize, $wrapper = self::DEFAULT_WRAPPER, $unencryptedSizeOnClose = 0) {
+	protected function getStream(string $fileName, string $mode, int $unencryptedSize, string $wrapper = self::DEFAULT_WRAPPER, int $unencryptedSizeOnClose = 0) {
 		clearstatcache();
 		$size = filesize($fileName);
 		$source = fopen($fileName, $mode);
@@ -74,23 +77,39 @@ class EncryptionTest extends \Test\TestCase {
 		$cache->expects($this->any())->method('get')->willReturn($entry);
 		$cache->expects($this->any())->method('update')->with(5, ['encrypted' => 3, 'encryptedVersion' => 3, 'unencrypted_size' => $unencryptedSizeOnClose]);
 
-
-		return $wrapper::wrap($source, $internalPath,
-			$fullPath, $header, $uid, $this->encryptionModule, $storage, $encStorage,
-			$util, $file, $mode, $size, $unencryptedSize, 8192, $wrapper);
+		return $wrapper::wrap(
+			$source,
+			$internalPath,
+			$fullPath,
+			$header,
+			$uid,
+			$this->encryptionModule,
+			$storage,
+			$encStorage,
+			$util,
+			$file,
+			$mode,
+			$size,
+			$unencryptedSize,
+			8192,
+			true,
+			$wrapper,
+		);
 	}
 
 	/**
 	 * @dataProvider dataProviderStreamOpen()
 	 */
-	public function testStreamOpen($isMasterKeyUsed,
+	public function testStreamOpen(
+		$isMasterKeyUsed,
 		$mode,
 		$fullPath,
 		$fileExists,
 		$expectedSharePath,
 		$expectedSize,
 		$expectedUnencryptedSize,
-		$expectedReadOnly): void {
+		$expectedReadOnly,
+	): void {
 		// build mocks
 		$encryptionModuleMock = $this->getMockBuilder('\OCP\Encryption\IEncryptionModule')
 			->disableOriginalConstructor()->getMock();
@@ -98,7 +117,7 @@ class EncryptionTest extends \Test\TestCase {
 		$encryptionModuleMock->expects($this->once())
 			->method('getUnencryptedBlockSize')->willReturn(99);
 		$encryptionModuleMock->expects($this->once())
-			->method('begin')->willReturn(true);
+			->method('begin')->willReturn([]);
 
 		$storageMock = $this->getMockBuilder('\OC\Files\Storage\Storage')
 			->disableOriginalConstructor()->getMock();
@@ -152,6 +171,8 @@ class EncryptionTest extends \Test\TestCase {
 		$header->setValue($streamWrapper, []);
 		$header->setAccessible(false);
 		$this->invokePrivate($streamWrapper, 'signed', [true]);
+		$this->invokePrivate($streamWrapper, 'internalPath', [$fullPath]);
+		$this->invokePrivate($streamWrapper, 'uid', ['test']);
 
 		// call stream_open, that's the method we want to test
 		$dummyVar = 'foo';
@@ -160,23 +181,17 @@ class EncryptionTest extends \Test\TestCase {
 		// check internal properties
 		$size = $stream->getProperty('size');
 		$size->setAccessible(true);
-		$this->assertSame($expectedSize,
-			$size->getValue($streamWrapper)
-		);
+		$this->assertSame($expectedSize, $size->getValue($streamWrapper));
 		$size->setAccessible(false);
 
 		$unencryptedSize = $stream->getProperty('unencryptedSize');
 		$unencryptedSize->setAccessible(true);
-		$this->assertSame($expectedUnencryptedSize,
-			$unencryptedSize->getValue($streamWrapper)
-		);
+		$this->assertSame($expectedUnencryptedSize, $unencryptedSize->getValue($streamWrapper));
 		$unencryptedSize->setAccessible(false);
 
 		$readOnly = $stream->getProperty('readOnly');
 		$readOnly->setAccessible(true);
-		$this->assertSame($expectedReadOnly,
-			$readOnly->getValue($streamWrapper)
-		);
+		$this->assertSame($expectedReadOnly, $readOnly->getValue($streamWrapper));
 		$readOnly->setAccessible(false);
 	}
 
@@ -335,10 +350,7 @@ class EncryptionTest extends \Test\TestCase {
 		unlink($fileName);
 	}
 
-	/**
-	 * @return \PHPUnit\Framework\MockObject\MockObject
-	 */
-	protected function buildMockModule() {
+	protected function buildMockModule(): IEncryptionModule&MockObject {
 		$encryptionModule = $this->getMockBuilder('\OCP\Encryption\IEncryptionModule')
 			->disableOriginalConstructor()
 			->setMethods(['getId', 'getDisplayName', 'begin', 'end', 'encrypt', 'decrypt', 'update', 'shouldEncrypt', 'getUnencryptedBlockSize', 'isReadable', 'encryptAll', 'prepareDecryptAll', 'isReadyForUser', 'needDetailedAccessList'])
-- 
2.39.5