handle moveFromStorage within the same storage even when storage wrappers are applied to the source storage

the target storage doesn't need additional handling for wrappers as the wrappers implementation of moveFromStorage already deals with that Any storage based on local storage isn't affected by this as local storage already has it's own way of handling with this Signed-off-by: Robin Appelman <robin@icewind.nl>
2019-09-25 19:17:06 +02:00 · 2019-09-25 19:17:06 +02:00 · cbc4134f33
parent c1018bbbe4
commit cbc4134f33
3 changed files with 134 additions and 21 deletions
--- a/lib/private/Files/Storage/Common.php
+++ b/lib/private/Files/Storage/Common.php
@ -46,6 +46,8 @@ use OC\Files\Cache\Scanner;
 use OC\Files\Cache\Updater;
 use OC\Files\Filesystem;
 use OC\Files\Cache\Watcher;
+use OC\Files\Storage\Wrapper\Jail;
+use OC\Files\Storage\Wrapper\Wrapper;
 use OCP\Files\EmptyFileNameException;
 use OCP\Files\FileNameTooLongException;
 use OCP\Files\InvalidCharacterInPathException;
@ -635,6 +637,23 @@ abstract class Common implements Storage, ILockingStorage, IWriteStreamStorage {
 		return (bool)$result;
 	}

+	/**
+	 * Check if a storage is the same as the current one, including wrapped storages
+	 *
+	 * @param IStorage $storage
+	 * @return bool
+	 */
+	private function isSameStorage(IStorage $storage): bool {
+		while ($storage->instanceOfStorage(Wrapper::class)) {
+			/**
+			 * @var Wrapper $sourceStorage
+			 */
+			$storage = $storage->getWrapperStorage();
+		}
+
+		return $storage === $this;
+	}
+
 	/**
 	 * @param IStorage $sourceStorage
 	 * @param string $sourceInternalPath
@ -642,7 +661,16 @@ abstract class Common implements Storage, ILockingStorage, IWriteStreamStorage {
 	 * @return bool
 	 */
 	public function moveFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($sourceStorage === $this) {
+		if ($this->isSameStorage($sourceStorage)) {
+			// resolve any jailed paths
+			while ($sourceStorage->instanceOfStorage(Jail::class)) {
+				/**
+				 * @var Jail $sourceStorage
+				 */
+				$sourceInternalPath = $sourceStorage->getUnjailedPath($sourceInternalPath);
+				$sourceStorage = $sourceStorage->getUnjailedStorage();
+			}
+
 			return $this->rename($sourceInternalPath, $targetInternalPath);
 		}

--- a/lib/private/Files/Storage/Wrapper/Jail.php
+++ b/lib/private/Files/Storage/Wrapper/Jail.php
@ -62,6 +62,14 @@ class Jail extends Wrapper {
 		}
 	}

+	/**
+	 * This is separate from Wrapper::getWrapperStorage so we can get the jailed storage consistently even if the jail is inside another wrapper
+	 */
+	public function getUnjailedStorage() {
+		return $this->storage;
+	}
+
+
 	public function getJailedPath($path) {
 		$root = rtrim($this->rootPath, '/') . '/';

--- a/tests/lib/Files/Storage/CommonTest.php
+++ b/tests/lib/Files/Storage/CommonTest.php
@ -1,27 +1,31 @@
 <?php
 /**
-* ownCloud
-*
-* @author Robin Appelman
-* @copyright 2012 Robin Appelman icewind@owncloud.com
-*
-* This library is free software; you can redistribute it and/or
-* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
-* License as published by the Free Software Foundation; either
-* version 3 of the License, or any later version.
-*
-* This library is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
-*
-* You should have received a copy of the GNU Affero General Public
-* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
-*
-*/
+ * ownCloud
+ *
+ * @author Robin Appelman
+ * @copyright 2012 Robin Appelman icewind@owncloud.com
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */

 namespace Test\Files\Storage;

+use OC\Files\Storage\Wrapper\Jail;
+use OC\Files\Storage\Wrapper\Wrapper;
+use PHPUnit\Framework\MockObject\MockObject;
+
 /**
 * Class CommonTest
 *
@ -34,15 +38,88 @@ class CommonTest extends Storage {
 	 * @var string tmpDir
 	 */
 	private $tmpDir;
+
 	protected function setUp() {
 		parent::setUp();

 		$this->tmpDir = \OC::$server->getTempManager()->getTemporaryFolder();
-		$this->instance=new \OC\Files\Storage\CommonTest(array('datadir'=>$this->tmpDir));
+		$this->instance = new \OC\Files\Storage\CommonTest(['datadir' => $this->tmpDir]);
 	}

 	protected function tearDown() {
 		\OC_Helper::rmdirr($this->tmpDir);
 		parent::tearDown();
 	}
+
+	public function testMoveFromStorageWrapped() {
+		/** @var \OC\Files\Storage\CommonTest|MockObject $instance */
+		$instance = $this->getMockBuilder(\OC\Files\Storage\CommonTest::class)
+			->setMethods(['copyFromStorage', 'rmdir', 'unlink'])
+			->setConstructorArgs([['datadir' => $this->tmpDir]])
+			->getMock();
+		$instance->method('copyFromStorage')
+			->willThrowException(new \Exception('copy'));
+
+		$source = new Wrapper([
+			'storage' => $instance,
+		]);
+
+		$instance->file_put_contents('foo.txt', 'bar');
+		$instance->moveFromStorage($source, 'foo.txt', 'bar.txt');
+		$this->assertTrue($instance->file_exists('bar.txt'));
+	}
+
+	public function testMoveFromStorageJailed() {
+		/** @var \OC\Files\Storage\CommonTest|MockObject $instance */
+		$instance = $this->getMockBuilder(\OC\Files\Storage\CommonTest::class)
+			->setMethods(['copyFromStorage', 'rmdir', 'unlink'])
+			->setConstructorArgs([['datadir' => $this->tmpDir]])
+			->getMock();
+		$instance->method('copyFromStorage')
+			->willThrowException(new \Exception('copy'));
+
+		$source = new Jail([
+			'storage' => $instance,
+			'root' => 'foo'
+		]);
+		$source = new Wrapper([
+			'storage' => $source
+		]);
+
+		$instance->mkdir('foo');
+		$instance->file_put_contents('foo/foo.txt', 'bar');
+		$instance->moveFromStorage($source, 'foo.txt', 'bar.txt');
+		$this->assertTrue($instance->file_exists('bar.txt'));
+	}
+
+	public function testMoveFromStorageNestedJail() {
+		/** @var \OC\Files\Storage\CommonTest|MockObject $instance */
+		$instance = $this->getMockBuilder(\OC\Files\Storage\CommonTest::class)
+			->setMethods(['copyFromStorage', 'rmdir', 'unlink'])
+			->setConstructorArgs([['datadir' => $this->tmpDir]])
+			->getMock();
+		$instance->method('copyFromStorage')
+			->willThrowException(new \Exception('copy'));
+
+		$source = new Jail([
+			'storage' => $instance,
+			'root' => 'foo'
+		]);
+		$source = new Wrapper([
+			'storage' => $source
+		]);
+		$source = new Jail([
+			'storage' => $source,
+			'root' => 'bar'
+		]);
+		$source = new Wrapper([
+			'storage' => $source
+		]);
+
+		$instance->mkdir('foo');
+		$instance->mkdir('foo/bar');
+		$instance->file_put_contents('foo/bar/foo.txt', 'bar');
+		$instance->moveFromStorage($source, 'foo.txt', 'bar.txt');
+		$this->assertTrue($instance->file_exists('bar.txt'));
+	}
 }