Multiple fixes

- Fix tests
- Use non deprecated event stuff
- Add a bit of type hinting to the new stuff
- More safe handling of instanceOfStorage (share might not be the first
  wrapper)
- Fix resharing

Signed-off-by: Carl Schwan <carl@carlschwan.eu>

8 files changed, 276 insertions, 127 deletions

diff --git a/apps/files_sharing/lib/AppInfo/Application.php b/apps/files_sharing/lib/AppInfo/Application.php
index ae039520c5b..63fdced9011 100644
--- a/apps/files_sharing/lib/AppInfo/Application.php
+++ b/apps/files_sharing/lib/AppInfo/Application.php
@@ -50,6 +50,7 @@ use OCA\Files_Sharing\Notification\Listener;
 use OCA\Files_Sharing\Notification\Notifier;
 use OCA\Files\Event\LoadAdditionalScriptsEvent;
 use OCA\Files\Event\LoadSidebar;
+use OCP\Files\Event\BeforeDirectGetEvent;
 use OCA\Files_Sharing\ShareBackend\File;
 use OCA\Files_Sharing\ShareBackend\Folder;
 use OCA\Files_Sharing\ViewOnly;
@@ -62,6 +63,8 @@ use OCP\EventDispatcher\IEventDispatcher;
 use OCP\EventDispatcher\GenericEvent;
 use OCP\Federation\ICloudIdManager;
 use OCP\Files\Config\IMountProviderCollection;
+use OCP\Files\Events\BeforeDirectFileDownloadEvent;
+use OCP\Files\Events\BeforeZipCreatedEvent;
 use OCP\Files\IRootFolder;
 use OCP\Group\Events\UserAddedEvent;
 use OCP\IDBConnection;
@@ -157,59 +160,53 @@ class Application extends App implements IBootstrap {
 
 	public function registerDownloadEvents(
 		IEventDispatcher $dispatcher,
-		?IUserSession $userSession,
+		IUserSession $userSession,
 		IRootFolder $rootFolder
 	): void {
 
 		$dispatcher->addListener(
-			'file.beforeGetDirect',
-			function (GenericEvent $event) use ($userSession, $rootFolder) {
-				$pathsToCheck = [$event->getArgument('path')];
-				$event->setArgument('run', true);
-
+			BeforeDirectFileDownloadEvent::class,
+			function (BeforeDirectFileDownloadEvent $event) use ($userSession, $rootFolder): void {
+				$pathsToCheck = [$event->getPath()];
 				// Check only for user/group shares. Don't restrict e.g. share links
-				if ($userSession && $userSession->isLoggedIn()) {
-					$uid = $userSession->getUser()->getUID();
+				$user = $userSession->getUser();
+				if ($user) {
 					$viewOnlyHandler = new ViewOnly(
-						$rootFolder->getUserFolder($uid)
+						$rootFolder->getUserFolder($user->getUID())
 					);
 					if (!$viewOnlyHandler->check($pathsToCheck)) {
-						$event->setArgument('run', false);
-						$event->setArgument('errorMessage', 'Access to this resource or one of its sub-items has been denied.');
+						$event->setSuccessful(false);
+						$event->setErrorMessage('Access to this resource or one of its sub-items has been denied.');
 					}
 				}
 			}
 		);
 
 		$dispatcher->addListener(
-			'file.beforeCreateZip',
-			function (GenericEvent $event) use ($userSession, $rootFolder) {
-				$dir = $event->getArgument('dir');
-				$files = $event->getArgument('files');
+			BeforeZipCreatedEvent::class,
+			function (BeforeZipCreatedEvent $event) use ($userSession, $rootFolder): void {
+				$dir = $event->getDirectory();
+				$files = $event->getFiles();
 
 				$pathsToCheck = [];
-				if (\is_array($files)) {
-					foreach ($files as $file) {
-						$pathsToCheck[] = $dir . '/' . $file;
-					}
-				} elseif (\is_string($files)) {
-					$pathsToCheck[] = $dir . '/' . $files;
+				foreach ($files as $file) {
+					$pathsToCheck[] = $dir . '/' . $file;
 				}
 
 				// Check only for user/group shares. Don't restrict e.g. share links
-				if ($userSession && $userSession->isLoggedIn()) {
-					$uid = $userSession->getUser()->getUID();
+				$user = $userSession->getUser();
+				if ($user) {
 					$viewOnlyHandler = new ViewOnly(
-						$rootFolder->getUserFolder($uid)
+						$rootFolder->getUserFolder($user->getUID())
 					);
 					if (!$viewOnlyHandler->check($pathsToCheck)) {
-						$event->setArgument('errorMessage', 'Access to this resource or one of its sub-items has been denied.');
-						$event->setArgument('run', false);
+						$event->setErrorMessage('Access to this resource or one of its sub-items has been denied.');
+						$event->setSuccessful(false);
 					} else {
-						$event->setArgument('run', true);
+						$event->setSuccessful(true);
 					}
 				} else {
-					$event->setArgument('run', true);
+					$event->setSuccessful(true);
 				}
 			}
 		);
diff --git a/apps/files_sharing/lib/Controller/PublicPreviewController.php b/apps/files_sharing/lib/Controller/PublicPreviewController.php
index 4a16afa7ac0..98c4d8cafb4 100644
--- a/apps/files_sharing/lib/Controller/PublicPreviewController.php
+++ b/apps/files_sharing/lib/Controller/PublicPreviewController.php
@@ -136,7 +136,7 @@ class PublicPreviewController extends PublicShareController {
 	 * @param $token
 	 * @return DataResponse|FileDisplayResponse
 	 */
-	public function directLink($token) {
+	public function directLink(string $token) {
 		// No token no image
 		if ($token === '') {
 			return new DataResponse([], Http::STATUS_BAD_REQUEST);
diff --git a/apps/files_sharing/lib/Controller/ShareAPIController.php b/apps/files_sharing/lib/Controller/ShareAPIController.php
index c72fd8ba8af..59089390667 100644
--- a/apps/files_sharing/lib/Controller/ShareAPIController.php
+++ b/apps/files_sharing/lib/Controller/ShareAPIController.php
@@ -45,6 +45,7 @@ declare(strict_types=1);
 namespace OCA\Files_Sharing\Controller;
 
 use OC\Files\FileInfo;
+use OC\Files\Storage\Wrapper\Wrapper;
 use OCA\Files_Sharing\Exceptions\SharingRightsException;
 use OCA\Files_Sharing\External\Storage;
 use OCA\Files_Sharing\SharedStorage;
@@ -524,14 +525,7 @@ class ShareAPIController extends OCSController {
 			$permissions &= ~($permissions & ~$node->getPermissions());
 		}
 
-		if ($share->getNode()->getStorage()->instanceOfStorage(SharedStorage::class)) {
-			/** @var \OCA\Files_Sharing\SharedStorage $storage */
-			$inheritedAttributes = $share->getNode()->getStorage()->getShare()->getAttributes();
-			if ($inheritedAttributes !== null && $inheritedAttributes->getAttribute('permissions', 'download') === false) {
-				$share->setHideDownload(true);
-			}
-		}
-
+		$this->checkInheritedAttributes($share);
 
 		if ($shareType === IShare::TYPE_USER) {
 			// Valid user is required to share
@@ -1110,6 +1104,25 @@ class ShareAPIController extends OCSController {
 			$share->setNote($note);
 		}
 
+		$userFolder = $this->rootFolder->getUserFolder($this->currentUser);
+
+		// get the node with the point of view of the current user
+		$nodes = $userFolder->getById($share->getNode()->getId());
+		if (count($nodes) > 0) {
+			$node = $nodes[0];
+			$storage = $node->getStorage();
+			if ($storage && $storage->instanceOfStorage(SharedStorage::class)) {
+				/** @var \OCA\Files_Sharing\SharedStorage $storage */
+				$inheritedAttributes = $storage->getShare()->getAttributes();
+				if ($inheritedAttributes !== null && $inheritedAttributes->getAttribute('permissions', 'download') === false) {
+					if ($hideDownload === 'false') {
+						throw new OCSBadRequestException($this->l->t('Cannot increase permissions'));
+					}
+					$share->setHideDownload(true);
+				}
+			}
+		}
+
 		/**
 		 * expirationdate, password and publicUpload only make sense for link shares
 		 */
@@ -1135,24 +1148,6 @@ class ShareAPIController extends OCSController {
 				$share->setHideDownload(false);
 			}
 
-			$userFolder = $this->rootFolder->getUserFolder($this->currentUser);
-			// get the node with the point of view of the current user
-			$nodes = $userFolder->getById($share->getNode()->getId());
-			if (count($nodes) > 0) {
-				$node = $nodes[0];
-				$storage = $node->getStorage();
-				if ($storage->instanceOfStorage(SharedStorage::class)) {
-					/** @var \OCA\Files_Sharing\SharedStorage $storage */
-					$inheritedAttributes = $storage->getShare()->getAttributes();
-					if ($inheritedAttributes !== null && $inheritedAttributes->getAttribute('permissions', 'download') === false) {
-						if ($hideDownload === 'false') {
-							throw new OCSBadRequestException($this->l->t('Cannot increate permissions'));
-						}
-						$share->setHideDownload(true);
-					}
-				}
-			}
-
 			$newPermissions = null;
 			if ($publicUpload === 'true') {
 				$newPermissions = Constants::PERMISSION_READ | Constants::PERMISSION_CREATE | Constants::PERMISSION_UPDATE | Constants::PERMISSION_DELETE;
@@ -1905,4 +1900,24 @@ class ShareAPIController extends OCSController {
 
 		return $share;
 	}
+
+	private function checkInheritedAttributes(IShare $share): void {
+		if ($share->getNode()->getStorage()->instanceOfStorage(SharedStorage::class)) {
+			$storage = $share->getNode()->getStorage();
+			if ($storage instanceof Wrapper) {
+				$storage = $storage->getInstanceOfStorage(SharedStorage::class);
+				if ($storage === null) {
+					throw new \RuntimeException('Should not happen, instanceOfStorage but getInstanceOfStorage return null');
+				}
+			} else {
+				throw new \RuntimeException('Should not happen, instanceOfStorage but not a wrapper');
+			}
+			/** @var \OCA\Files_Sharing\SharedStorage $storage */
+			$inheritedAttributes = $storage->getShare()->getAttributes();
+			if ($inheritedAttributes !== null && $inheritedAttributes->getAttribute('permissions', 'download') === false) {
+				$share->setHideDownload(true);
+			}
+		}
+
+	}
 }
diff --git a/apps/files_sharing/lib/MountProvider.php b/apps/files_sharing/lib/MountProvider.php
index 30e398d663b..954c9cf70e6 100644
--- a/apps/files_sharing/lib/MountProvider.php
+++ b/apps/files_sharing/lib/MountProvider.php
@@ -242,8 +242,9 @@ class MountProvider implements IMountProvider {
 				$superPermissions |= $share->getPermissions();
 
 				// update share permission attributes
-				if ($share->getAttributes() !== null) {
-					foreach ($share->getAttributes()->toArray() as $attribute) {
+				$attributes = $share->getAttributes();
+				if ($attributes !== null) {
+					foreach ($attributes->toArray() as $attribute) {
 						if ($superAttributes->getAttribute($attribute['scope'], $attribute['key']) === true) {
 							// if super share attribute is already enabled, it is most permissive
 							continue;
diff --git a/apps/files_sharing/src/components/SharingEntry.vue b/apps/files_sharing/src/components/SharingEntry.vue
index 0eb0029cb54..f873ef542ed 100644
--- a/apps/files_sharing/src/components/SharingEntry.vue
+++ b/apps/files_sharing/src/components/SharingEntry.vue
@@ -80,8 +80,9 @@
 
 				<ActionCheckbox ref="canDownload"
 					:checked.sync="canDownload"
+					v-if="isSetDownloadButtonVisible"
 					:disabled="saving || !canSetDownload">
-					{{ t('files_sharing', 'Allow download') }}
+					{{ allowDownloadText }}
 				</ActionCheckbox>
 
 				<!-- expiration date -->
@@ -407,6 +408,36 @@ export default {
 			return (typeof this.share.status === 'object' && !Array.isArray(this.share.status))
 		},
 
+		/**
+		 * @return {string}
+		 */
+		allowDownloadText() {
+			if (this.isFolder) {
+				return t('files_sharing', 'Allow download of office files')
+			} else {
+				return t('files_sharing', 'Allow download')
+			}
+		},
+
+		/**
+		 * @return {boolean}
+		 */
+		isSetDownloadButtonVisible() {
+			const allowedMimetypes = [
+				// Office documents
+				'application/msword',
+				'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+				'application/vnd.ms-powerpoint',
+				'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+				'application/vnd.ms-excel',
+				'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+				'application/vnd.oasis.opendocument.text',
+				'application/vnd.oasis.opendocument.spreadsheet',
+				'application/vnd.oasis.opendocument.presentation',
+			]
+
+			return this.isFolder || allowedMimetypes.includes(this.fileInfo.mimetype)
+		},
 	},
 
 	methods: {
diff --git a/apps/files_sharing/src/components/SharingEntryLink.vue b/apps/files_sharing/src/components/SharingEntryLink.vue
index 0699cf2aea4..328d0108332 100644
--- a/apps/files_sharing/src/components/SharingEntryLink.vue
+++ b/apps/files_sharing/src/components/SharingEntryLink.vue
@@ -159,7 +159,7 @@
 					<ActionSeparator />
 
 					<ActionCheckbox :checked.sync="share.hideDownload"
-						:disabled="saving"
+						:disabled="saving || canChangeHideDownload"
 						@change="queueUpdate('hideDownload')">
 						{{ t('files_sharing', 'Hide download') }}
 					</ActionCheckbox>
@@ -607,6 +607,12 @@ export default {
 		isPasswordPolicyEnabled() {
 			return typeof this.config.passwordPolicy === 'object'
 		},
+
+		canChangeHideDownload() {
+			const hasDisabledDownload = (shareAttribute) => shareAttribute.key === 'download' && shareAttribute.scope === 'permissions' && shareAttribute.enabled === false
+
+			return this.fileInfo.shareAttributes.some(hasDisabledDownload)
+		},
 	},
 
 	methods: {
@@ -868,7 +874,6 @@ export default {
 			this.$emit('remove:share', this.share)
 		},
 	},
-
 }
 </script>
 
diff --git a/apps/files_sharing/tests/ApplicationTest.php b/apps/files_sharing/tests/ApplicationTest.php
index ee04996ac15..11c8137c398 100644
--- a/apps/files_sharing/tests/ApplicationTest.php
+++ b/apps/files_sharing/tests/ApplicationTest.php
@@ -22,6 +22,8 @@
  */
 namespace OCA\Files_Sharing\Tests;
 
+use OCP\Files\Events\BeforeDirectFileDownloadEvent;
+use OCP\Files\Events\BeforeZipCreatedEvent;
 use Psr\Log\LoggerInterface;
 use OC\Share20\LegacyHooks;
 use OC\Share20\Manager;
@@ -32,6 +34,7 @@ use OCP\Constants;
 use OCP\EventDispatcher\GenericEvent;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\Cache\ICacheEntry;
+use OCP\Files\Event\BeforeDirectGetEvent;
 use OCP\Files\File;
 use OCP\Files\Folder;
 use OCP\Files\IRootFolder;
@@ -45,12 +48,8 @@ use Symfony\Component\EventDispatcher\EventDispatcher as SymfonyDispatcher;
 use Test\TestCase;
 
 class ApplicationTest extends TestCase {
-
-	/** @var Application */
-	private $application;
-
-	/** @var IEventDispatcher */
-	private $eventDispatcher;
+	private Application $application;
+	private IEventDispatcher $eventDispatcher;
 
 	/** @var IUserSession */
 	private $userSession;
@@ -81,7 +80,7 @@ class ApplicationTest extends TestCase {
 		);
 	}
 
-	public function providesDataForCanGet() {
+	public function providesDataForCanGet(): array {
 		// normal file (sender) - can download directly
 		$senderFileStorage = $this->createMock(IStorage::class);
 		$senderFileStorage->method('instanceOfStorage')->with(SharedStorage::class)->willReturn(false);
@@ -130,7 +129,7 @@ class ApplicationTest extends TestCase {
 	/**
 	 * @dataProvider providesDataForCanGet
 	 */
-	public function testCheckDirectCanBeDownloaded($path, $userFolder, $run) {
+	public function testCheckDirectCanBeDownloaded(string $path, Folder $userFolder, bool $run): void {
 		$user = $this->createMock(IUser::class);
 		$user->method('getUID')->willReturn('test');
 		$this->userSession->method('getUser')->willReturn($user);
@@ -138,13 +137,13 @@ class ApplicationTest extends TestCase {
 		$this->rootFolder->method('getUserFolder')->willReturn($userFolder);
 
 		// Simulate direct download of file
-		$event = new GenericEvent(null, [ 'path' => $path ]);
-		$this->eventDispatcher->dispatch('file.beforeGetDirect', $event);
+		$event = new BeforeDirectFileDownloadEvent($path);
+		$this->eventDispatcher->dispatchTyped($event);
 
-		$this->assertEquals($run, !$event->hasArgument('errorMessage'));
+		$this->assertEquals($run, $event->isSuccessful());
 	}
 
-	public function providesDataForCanZip() {
+	public function providesDataForCanZip(): array {
 		// Mock: Normal file/folder storage
 		$nonSharedStorage = $this->createMock(IStorage::class);
 		$nonSharedStorage->method('instanceOfStorage')->with(SharedStorage::class)->willReturn(false);
@@ -172,7 +171,7 @@ class ApplicationTest extends TestCase {
 		$sender1UserFolder->method('get')->willReturn($sender1RootFolder);
 
 		$return[] = [ '/folder', ['bar1.txt', 'bar2.txt'], $sender1UserFolder, true ];
-		$return[] = [ '/', 'folder', $sender1UserFolder, true ];
+		$return[] = [ '/', ['folder'], $sender1UserFolder, true ];
 
 		// 3. cannot download zipped 1 non-shared file and 1 secure-shared inside non-shared folder
 		$receiver1File = $this->createMock(File::class);
@@ -199,7 +198,7 @@ class ApplicationTest extends TestCase {
 		$receiver2UserFolder = $this->createMock(Folder::class);
 		$receiver2UserFolder->method('get')->willReturn($receiver2RootFolder);
 
-		$return[] = [ '/', 'secured-folder', $receiver2UserFolder, false ];
+		$return[] = [ '/', ['secured-folder'], $receiver2UserFolder, false ];
 
 		return $return;
 	}
@@ -207,7 +206,7 @@ class ApplicationTest extends TestCase {
 	/**
 	 * @dataProvider providesDataForCanZip
 	 */
-	public function testCheckZipCanBeDownloaded($dir, $files, $userFolder, $run) {
+	public function testCheckZipCanBeDownloaded(string $dir, array $files, Folder $userFolder, bool $run): void {
 		$user = $this->createMock(IUser::class);
 		$user->method('getUID')->willReturn('test');
 		$this->userSession->method('getUser')->willReturn($user);
@@ -216,22 +215,22 @@ class ApplicationTest extends TestCase {
 		$this->rootFolder->method('getUserFolder')->with('test')->willReturn($userFolder);
 
 		// Simulate zip download of folder folder
-		$event = new GenericEvent(null, ['dir' => $dir, 'files' => $files, 'run' => true]);
-		$this->eventDispatcher->dispatch('file.beforeCreateZip', $event);
+		$event = new BeforeZipCreatedEvent($dir, $files);
+		$this->eventDispatcher->dispatchTyped($event);
 
-		$this->assertEquals($run, $event->getArgument('run'));
-		$this->assertEquals($run, !$event->hasArgument('errorMessage'));
+		$this->assertEquals($run, $event->isSuccessful());
+		$this->assertEquals($run, $event->getErrorMessage() === null);
 	}
 
-	public function testCheckFileUserNotFound() {
+	public function testCheckFileUserNotFound(): void {
 		$this->userSession->method('isLoggedIn')->willReturn(false);
 
 		// Simulate zip download of folder folder
-		$event = new GenericEvent(null, ['dir' => '/test', 'files' => ['test.txt'], 'run' => true]);
-		$this->eventDispatcher->dispatch('file.beforeCreateZip', $event);
+		$event = new BeforeZipCreatedEvent('/test', ['test.txt']);
+		$this->eventDispatcher->dispatchTyped($event);
 
 		// It should run as this would restrict e.g. share links otherwise
-		$this->assertTrue($event->getArgument('run'));
-		$this->assertFalse($event->hasArgument('errorMessage'));
+		$this->assertTrue($event->isSuccessful());
+		$this->assertEquals(null, $event->getErrorMessage());
 	}
 }
diff --git a/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php b/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
index a6a81bd672c..f8f4fb18bc8 100644
--- a/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
+++ b/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
@@ -46,6 +46,7 @@ use OCP\Files\IRootFolder;
 use OCP\Files\Mount\IMountPoint;
 use OCP\Files\NotFoundException;
 use OCP\Files\Storage;
+use OCP\Files\Storage\IStorage;
 use OCP\IConfig;
 use OCP\IGroup;
 use OCP\IGroupManager;
@@ -1675,8 +1676,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 			->method('get')
@@ -1709,8 +1712,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 			->method('get')
@@ -1761,8 +1766,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 				->method('get')
@@ -1817,8 +1824,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 				->method('get')
@@ -1876,8 +1885,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 			->method('get')
@@ -1930,8 +1941,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 			->method('get')
@@ -1964,8 +1977,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -1985,8 +2000,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -2007,8 +2024,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -2028,8 +2047,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -2064,8 +2085,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -2100,8 +2123,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -2143,8 +2168,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$path->method('getPath')->willReturn('valid-path');
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
@@ -2179,8 +2206,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -2222,8 +2251,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$this->rootFolder->method('getUserFolder')->with($this->currentUser)->willReturnSelf();
 		$this->rootFolder->method('get')->with('valid-path')->willReturn($path);
@@ -2270,8 +2301,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 				->method('get')
@@ -2342,8 +2375,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 				->method('get')
@@ -2396,8 +2431,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 				->method('get')
@@ -2480,8 +2517,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$path->method('getPath')->willReturn('valid-path');
 		$userFolder->expects($this->once())
@@ -2523,8 +2562,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(File::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(false);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', false],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$userFolder->expects($this->once())
 				->method('get')
@@ -2604,8 +2645,10 @@ class ShareAPIControllerTest extends TestCase {
 		$path = $this->getMockBuilder(Folder::class)->getMock();
 		$storage = $this->createMock(Storage::class);
 		$storage->method('instanceOfStorage')
-			->with('OCA\Files_Sharing\External\Storage')
-			->willReturn(true);
+			->willReturnMap([
+				['OCA\Files_Sharing\External\Storage', true],
+				['OCA\Files_Sharing\SharedStorage', false],
+			]);
 		$path->method('getStorage')->willReturn($storage);
 		$path->method('getPermissions')->willReturn(\OCP\Constants::PERMISSION_READ);
 		$userFolder->expects($this->once())
@@ -2964,8 +3007,17 @@ class ShareAPIControllerTest extends TestCase {
 		$this->expectExceptionMessage('Invalid date. Format must be YYYY-MM-DD');
 
 		$ocs = $this->mockFormatShare();
+		$userFolder = $this->createMock(Folder::class);
+		$userFolder->method('getById')
+			->with(42)
+			->willReturn([]);
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturn($userFolder);
 
 		$folder = $this->getMockBuilder(Folder::class)->getMock();
+		$folder->method('getId')
+			->willReturn(42);
 
 		$share = \OC::$server->getShareManager()->newShare();
 		$share->setPermissions(\OCP\Constants::PERMISSION_ALL)
@@ -3003,8 +3055,16 @@ class ShareAPIControllerTest extends TestCase {
 		$this->expectExceptionMessage('Public upload disabled by the administrator');
 
 		$ocs = $this->mockFormatShare();
+		$userFolder = $this->createMock(Folder::class);
+		$userFolder->method('getById')
+			->with(42)
+			->willReturn([]);
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturn($userFolder);
 
 		$folder = $this->getMockBuilder(Folder::class)->getMock();
+		$folder->method('getId')->willReturn(42);
 
 		$share = \OC::$server->getShareManager()->newShare();
 		$share->setPermissions(\OCP\Constants::PERMISSION_ALL)
@@ -3026,6 +3086,15 @@ class ShareAPIControllerTest extends TestCase {
 		$ocs = $this->mockFormatShare();
 
 		$file = $this->getMockBuilder(File::class)->getMock();
+		$file->method('getId')
+			->willReturn(42);
+		$userFolder = $this->createMock(Folder::class);
+		$userFolder->method('getById')
+			->with(42)
+			->willReturn([]);
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturn($userFolder);
 
 		$share = \OC::$server->getShareManager()->newShare();
 		$share->setPermissions(\OCP\Constants::PERMISSION_ALL)
@@ -3039,13 +3108,21 @@ class ShareAPIControllerTest extends TestCase {
 		$ocs->updateShare(42, null, 'password', null, 'true', '');
 	}
 
-	public function testUpdateLinkSharePasswordDoesNotChangeOther() {
+	public function testUpdateLinkSharePasswordDoesNotChangeOther(): void {
 		$ocs = $this->mockFormatShare();
 
 		$date = new \DateTime('2000-01-01');
 		$date->setTime(0,0,0);
 
 		$node = $this->getMockBuilder(File::class)->getMock();
+		$node->method('getId')->willReturn(42);
+		$userFolder = $this->createMock(Folder::class);
+		$userFolder->method('getById')
+			->with(42)
+			->willReturn([]);
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturn($userFolder);
 		$share = $this->newShare();
 		$share->setPermissions(\OCP\Constants::PERMISSION_ALL)
 			->setSharedBy($this->currentUser)
@@ -3090,7 +3167,15 @@ class ShareAPIControllerTest extends TestCase {
 		$date = new \DateTime('2000-01-01');
 		$date->setTime(0,0,0);
 
+		$userFolder = $this->createMock(Folder::class);
+		$userFolder->method('getById')
+			->with(42)
+			->willReturn([]);
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturn($userFolder);
 		$node = $this->getMockBuilder(File::class)->getMock();
+		$node->method('getId')->willReturn(42);
 		$share = $this->newShare();
 		$share->setPermissions(\OCP\Constants::PERMISSION_ALL)
 			->setSharedBy($this->currentUser)
@@ -3141,7 +3226,15 @@ class ShareAPIControllerTest extends TestCase {
 		$date = new \DateTime('2000-01-01');
 		$date->setTime(0,0,0);
 
+		$userFolder = $this->createMock(Folder::class);
+		$userFolder->method('getById')
+			->with(42)
+			->willReturn([]);
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturn($userFolder);
 		$node = $this->getMockBuilder(File::class)->getMock();
+		$node->method('getId')->willReturn(42);
 		$share = $this->newShare();
 		$share->setPermissions(\OCP\Constants::PERMISSION_ALL)
 			->setSharedBy($this->currentUser)
@@ -3174,7 +3267,15 @@ class ShareAPIControllerTest extends TestCase {
 		$date = new \DateTime('2000-01-01');
 		$date->setTime(0,0,0);
 
+		$userFolder = $this->createMock(Folder::class);
+		$userFolder->method('getById')
+			->with(42)
+			->willReturn([]);
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturn($userFolder);
 		$node = $this->getMockBuilder(File::class)->getMock();
+		$node->method('getId')->willReturn(42);
 		$share = $this->newShare();
 		$share->setPermissions(\OCP\Constants::PERMISSION_ALL)
 			->setSharedBy($this->currentUser)