fix(files_sharing,files): Do not validate shares before adjusting the owner

Signed-off-by: provokateurin <kate@provokateurin.de>

apps/files/lib/Service/OwnershipTransferService.php

@@ -310,7 +310,7 @@ class OwnershipTransferService {
 		foreach ($supportedShareTypes as $shareType) {
 			$offset = 0;
 			while (true) {
-				$sharePage = $this->shareManager->getSharesBy($sourceUid, $shareType, null, true, 50, $offset);
+				$sharePage = $this->shareManager->getSharesBy($sourceUid, $shareType, null, true, 50, $offset, onlyValid: false);
 				$progress->advance(count($sharePage));
 				if (empty($sharePage)) {
 					break;
@@ -464,7 +464,7 @@ class OwnershipTransferService {
 						}
 						$share->setNodeId($newNodeId);
 
-						$this->shareManager->updateShare($share);
+						$this->shareManager->updateShare($share, onlyValid: false);
 					}
 				}
 			} catch (NotFoundException $e) {

apps/files_sharing/lib/Updater.php

@@ -50,10 +50,14 @@ class Updater {
 
 		$shareManager = \OC::$server->getShareManager();
 
+		// We intentionally include invalid shares, as they have been automatically invalidated due to the node no longer
+		// being accessible for the user. Only in this case where we adjust the share after it was moved we want to ignore
+		// this to be able to still adjust it.
+
 		// FIXME: should CIRCLES be included here ??
-		$shares = $shareManager->getSharesBy($user->getUID(), IShare::TYPE_USER, $src, false, -1);
-		$shares = array_merge($shares, $shareManager->getSharesBy($user->getUID(), IShare::TYPE_GROUP, $src, false, -1));
-		$shares = array_merge($shares, $shareManager->getSharesBy($user->getUID(), IShare::TYPE_ROOM, $src, false, -1));
+		$shares = $shareManager->getSharesBy($user->getUID(), IShare::TYPE_USER, $src, false, -1, onlyValid: false);
+		$shares = array_merge($shares, $shareManager->getSharesBy($user->getUID(), IShare::TYPE_GROUP, $src, false, -1, onlyValid: false));
+		$shares = array_merge($shares, $shareManager->getSharesBy($user->getUID(), IShare::TYPE_ROOM, $src, false, -1, onlyValid: false));
 
 		if ($src instanceof Folder) {
 			$cacheAccess = Server::get(FileAccess::class);
@@ -61,9 +65,9 @@ class Updater {
 			$sourceStorageId = $src->getStorage()->getCache()->getNumericStorageId();
 			$sourceInternalPath = $src->getInternalPath();
 			$subShares = array_merge(
-				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_USER),
-				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_GROUP),
-				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_ROOM),
+				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_USER, onlyValid: false),
+				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_GROUP, onlyValid: false),
+				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_ROOM, onlyValid: false),
 			);
 			$shareSourceIds = array_map(fn (IShare $share) => $share->getNodeId(), $subShares);
 			$shareSources = $cacheAccess->getByFileIdsInStorage($shareSourceIds, $sourceStorageId);
@@ -111,7 +115,7 @@ class Updater {
 
 			$share->setShareOwner($newOwner);
 			$share->setPermissions($newPermissions);
-			$shareManager->updateShare($share);
+			$shareManager->updateShare($share, onlyValid: false);
 		}
 	}
 

lib/private/Share20/Manager.php

@@ -786,13 +786,13 @@ class Manager implements IManager {
 	 * @throws \InvalidArgumentException
 	 * @throws GenericShareException
 	 */
-	public function updateShare(IShare $share) {
+	public function updateShare(IShare $share, bool $onlyValid = true) {
 		$expirationDateUpdated = false;
 
 		$this->canShare($share);
 
 		try {
-			$originalShare = $this->getShareById($share->getFullId());
+			$originalShare = $this->getShareById($share->getFullId(), onlyValid: $onlyValid);
 		} catch (\UnexpectedValueException $e) {
 			throw new \InvalidArgumentException($this->l->t('Share does not have a full ID'));
 		}
@@ -1241,7 +1241,7 @@ class Manager implements IManager {
 	/**
 	 * @inheritdoc
 	 */
-	public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0) {
+	public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0, bool $onlyValid = true) {
 		if ($path !== null &&
 			!($path instanceof \OCP\Files\File) &&
 			!($path instanceof \OCP\Files\Folder)) {
@@ -1270,11 +1270,13 @@ class Manager implements IManager {
 		while (true) {
 			$added = 0;
 			foreach ($shares as $share) {
-				try {
-					$this->checkShare($share);
-				} catch (ShareNotFound $e) {
-					// Ignore since this basically means the share is deleted
-					continue;
+				if ($onlyValid) {
+					try {
+						$this->checkShare($share);
+					} catch (ShareNotFound $e) {
+						// Ignore since this basically means the share is deleted
+						continue;
+					}
 				}
 
 				$added++;
@@ -1366,7 +1368,7 @@ class Manager implements IManager {
 	/**
 	 * @inheritdoc
 	 */
-	public function getShareById($id, $recipient = null) {
+	public function getShareById($id, $recipient = null, bool $onlyValid = true) {
 		if ($id === null) {
 			throw new ShareNotFound();
 		}
@@ -1381,7 +1383,9 @@ class Manager implements IManager {
 
 		$share = $provider->getShareById($id, $recipient);
 
-		$this->checkShare($share);
+		if ($onlyValid) {
+			$this->checkShare($share);
+		}
 
 		return $share;
 	}

lib/public/Share/IManager.php

@@ -41,11 +41,12 @@ interface IManager {
 	 * The state can't be changed this way: use acceptShare
 	 *
 	 * @param IShare $share
+	 * @param bool $onlyValid Only updates valid shares, invalid shares will be deleted automatically and are not updated
 	 * @return IShare The share object
 	 * @throws \InvalidArgumentException
 	 * @since 9.0.0
 	 */
-	public function updateShare(IShare $share);
+	public function updateShare(IShare $share, bool $onlyValid = true);
 
 	/**
 	 * Accept a share.
@@ -127,10 +128,11 @@ interface IManager {
 	 * @param bool $reshares
 	 * @param int $limit The maximum number of returned results, -1 for all results
 	 * @param int $offset
+	 * @param bool $onlyValid Only returns valid shares, invalid shares will be deleted automatically and are not returned
 	 * @return IShare[]
 	 * @since 9.0.0
 	 */
-	public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0);
+	public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0, bool $onlyValid = true);
 
 	/**
 	 * Get shares shared with $user.
@@ -168,11 +170,12 @@ interface IManager {
 	 *
 	 * @param string $id
 	 * @param string|null $recipient userID of the recipient
+	 * @param bool $onlyValid Only returns valid shares, invalid shares will be deleted automatically and are not returned
 	 * @return IShare
 	 * @throws ShareNotFound
 	 * @since 9.0.0
 	 */
-	public function getShareById($id, $recipient = null);
+	public function getShareById($id, $recipient = null, bool $onlyValid = true);
 
 	/**
 	 * Get the share by token possible with password