optimize isShared and isMounted

Signed-off-by: Robin Appelman <robin@icewind.nl>

lib/private/Files/FileInfo.php

@@ -33,9 +33,10 @@
  */
 namespace OC\Files;
 
-use OCA\Files_Sharing\ISharedStorage;
+use OC\Files\Mount\HomeMountPoint;
+use OCA\Files_Sharing\External\Mount;
+use OCA\Files_Sharing\ISharedMountPoint;
 use OCP\Files\Cache\ICacheEntry;
-use OCP\Files\IHomeStorage;
 use OCP\Files\Mount\IMountPoint;
 use OCP\IUser;
 
@@ -312,13 +313,12 @@ class FileInfo implements \OCP\Files\FileInfo, \ArrayAccess {
 	 * @return bool
 	 */
 	public function isShared() {
-		$storage = $this->getStorage();
-		return $storage->instanceOfStorage(ISharedStorage::class);
+		return $this->mount instanceof ISharedMountPoint;
 	}
 
 	public function isMounted() {
-		$storage = $this->getStorage();
-		return !($storage->instanceOfStorage(IHomeStorage::class) || $storage->instanceOfStorage(ISharedStorage::class));
+		$isHome = $this->mount instanceof HomeMountPoint;
+		return !$isHome && !$this->isShared();
 	}
 
 	/**

tests/lib/Files/FileInfoTest.php

@@ -9,6 +9,8 @@
 namespace Test\Files;
 
 use OC\Files\FileInfo;
+use OC\Files\Mount\HomeMountPoint;
+use OC\Files\Mount\MountPoint;
 use OC\Files\Storage\Home;
 use OC\Files\Storage\Temporary;
 use OCP\IConfig;
@@ -33,19 +35,27 @@ class FileInfoTest extends TestCase {
 			->willReturn('foo');
 		$user->method('getHome')
 			->willReturn('foo');
+		$storage = new Home(['user' => $user]);
 
 		$fileInfo = new FileInfo(
 			'',
-			new Home(['user' => $user]),
-			'', [], null);
+			$storage,
+			'',
+			[],
+			new HomeMountPoint($user, $storage, '/foo/files')
+		);
 		$this->assertFalse($fileInfo->isMounted());
 	}
 
 	public function testIsMountedNonHomeStorage() {
+		$storage = new Temporary();
 		$fileInfo = new FileInfo(
 			'',
-			new Temporary(),
-			'', [], null);
+			$storage,
+			'',
+			[],
+			new MountPoint($storage, '/foo/files/bar')
+		);
 		$this->assertTrue($fileInfo->isMounted());
 	}
 }