Improve cross storage copy between local storages

lib/private/files/storage/local.php

@@ -353,5 +353,41 @@ if (\OC_Util::runningOnWindows()) {
 				return parent::getETag($path);
 			}
 		}
+
+		/**
+		 * @param \OCP\Files\Storage $sourceStorage
+		 * @param string $sourceInternalPath
+		 * @param string $targetInternalPath
+		 * @return bool
+		 */
+		public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
+			if($sourceStorage->instanceOfStorage('\OC\Files\Storage\Local')){
+				/**
+				 * @var \OC\Files\Storage\Local $sourceStorage
+				 */
+				$rootStorage = new Local(['datadir' => '/']);
+				return $rootStorage->copy($sourceStorage->getSourcePath($sourceInternalPath), $this->getSourcePath($targetInternalPath));
+			} else {
+				return parent::copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+			}
+		}
+
+		/**
+		 * @param \OCP\Files\Storage $sourceStorage
+		 * @param string $sourceInternalPath
+		 * @param string $targetInternalPath
+		 * @return bool
+		 */
+		public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
+			if ($sourceStorage->instanceOfStorage('\OC\Files\Storage\Local')) {
+				/**
+				 * @var \OC\Files\Storage\Local $sourceStorage
+				 */
+				$rootStorage = new Local(['datadir' => '/']);
+				return $rootStorage->rename($sourceStorage->getSourcePath($sourceInternalPath), $this->getSourcePath($targetInternalPath));
+			} else {
+				return parent::moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+			}
+		}
 	}
 }

tests/lib/files/view.php

@@ -8,6 +8,7 @@
 namespace Test\Files;
 
 use OC\Files\Cache\Watcher;
+use OC\Files\Storage\Common;
 use OC\Files\Mount\MountPoint;
 use OC\Files\Storage\Temporary;
 
@@ -17,6 +18,26 @@ class TemporaryNoTouch extends \OC\Files\Storage\Temporary {
 	}
 }
 
+class TemporaryNoCross extends \OC\Files\Storage\Temporary {
+	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
+		return Common::copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+	}
+
+	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
+		return Common::moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+	}
+}
+
+class TemporaryNoLocal extends \OC\Files\Storage\Temporary {
+	public function instanceOfStorage($className) {
+		if($className === '\OC\Files\Storage\Local') {
+			return false;
+		} else {
+			return parent::instanceOfStorage($className);
+		}
+	}
+}
+
 class View extends \Test\TestCase {
 	/**
 	 * @var \OC\Files\Storage\Storage[] $storages
@@ -291,9 +312,31 @@ class View extends \Test\TestCase {
 	/**
 	 * @medium
 	 */
-	function testCopyBetweenStorages() {
+	function testCopyBetweenStorageNoCross() {
+		$storage1 = $this->getTestStorage(true, '\Test\Files\TemporaryNoCross');
+		$storage2 = $this->getTestStorage(true, '\Test\Files\TemporaryNoCross');
+		$this->copyBetweenStorages($storage1, $storage2);
+	}
+
+	/**
+	 * @medium
+	 */
+	function testCopyBetweenStorageCross() {
 		$storage1 = $this->getTestStorage();
 		$storage2 = $this->getTestStorage();
+		$this->copyBetweenStorages($storage1, $storage2);
+	}
+
+	/**
+	 * @medium
+	 */
+	function testCopyBetweenStorageCrossNonLocal() {
+		$storage1 = $this->getTestStorage(true, '\Test\Files\TemporaryNoLocal');
+		$storage2 = $this->getTestStorage(true, '\Test\Files\TemporaryNoLocal');
+		$this->copyBetweenStorages($storage1, $storage2);
+	}
+
+	function copyBetweenStorages($storage1, $storage2) {
 		\OC\Files\Filesystem::mount($storage1, array(), '/');
 		\OC\Files\Filesystem::mount($storage2, array(), '/substorage');
 
@@ -315,9 +358,31 @@ class View extends \Test\TestCase {
 	/**
 	 * @medium
 	 */
-	function testMoveBetweenStorages() {
+	function testMoveBetweenStorageNoCross() {
+		$storage1 = $this->getTestStorage(true, '\Test\Files\TemporaryNoCross');
+		$storage2 = $this->getTestStorage(true, '\Test\Files\TemporaryNoCross');
+		$this->moveBetweenStorages($storage1, $storage2);
+	}
+
+	/**
+	 * @medium
+	 */
+	function testMoveBetweenStorageCross() {
 		$storage1 = $this->getTestStorage();
 		$storage2 = $this->getTestStorage();
+		$this->moveBetweenStorages($storage1, $storage2);
+	}
+
+	/**
+	 * @medium
+	 */
+	function testMoveBetweenStorageCrossNonLocal() {
+		$storage1 = $this->getTestStorage(true, '\Test\Files\TemporaryNoLocal');
+		$storage2 = $this->getTestStorage(true, '\Test\Files\TemporaryNoLocal');
+		$this->moveBetweenStorages($storage1, $storage2);
+	}
+
+	function moveBetweenStorages($storage1, $storage2) {
 		\OC\Files\Filesystem::mount($storage1, array(), '/');
 		\OC\Files\Filesystem::mount($storage2, array(), '/substorage');