refactor: Move to PHP 8.1 language features

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

lib/ACL/ACLCacheWrapper.php

@@ -58,9 +58,7 @@ public function getFolderContentsById($fileId): array {
 		$results = $this->getCache()->getFolderContentsById($fileId);
 		$rules = $this->preloadEntries($results);
 
-		return array_filter(array_map(function (ICacheEntry $entry) use ($rules): ICacheEntry|false {
-			return $this->formatCacheEntry($entry, $rules);
-		}, $results));
+		return array_filter(array_map(fn (ICacheEntry $entry): ICacheEntry|false => $this->formatCacheEntry($entry, $rules), $results));
 	}
 
 	public function search($pattern): array {
@@ -89,9 +87,7 @@ public function searchQuery(ISearchQuery $query): array {
 	 * @return array<string, Rule[]>
 	 */
 	private function preloadEntries(array $entries): array {
-		$paths = array_map(function (ICacheEntry $entry): string {
-			return $entry->getPath();
-		}, $entries);
+		$paths = array_map(fn (ICacheEntry $entry): string => $entry->getPath(), $entries);
 
 		return $this->aclManager->getRelevantRulesForPath($paths, false);
 	}

lib/ACL/ACLManager.php

@@ -52,13 +52,9 @@ private function getRules(array $paths, bool $cache = true): array {
 		// beware: adding new rules to the cache besides the cap
 		// might discard former cached entries, so we can't assume they'll stay
 		// cached, so we read everything out initially to be able to return it
-		$rules = array_combine($paths, array_map(function (string $path): ?array {
-			return $this->ruleCache->get($path);
-		}, $paths));
+		$rules = array_combine($paths, array_map(fn (string $path): ?array => $this->ruleCache->get($path), $paths));
 
-		$nonCachedPaths = array_filter($paths, function (string $path) use ($rules): bool {
-			return !isset($rules[$path]);
-		});
+		$nonCachedPaths = array_filter($paths, fn (string $path): bool => !isset($rules[$path]));
 
 		if (!empty($nonCachedPaths)) {
 			$newRules = $this->ruleManager->getRulesForFilesByPath($this->user, $this->getRootStorageId(), $nonCachedPaths);

lib/ACL/ACLStorageWrapper.php

@@ -69,10 +69,10 @@ public function getPermissions($path): int {
 	}
 
 	public function rename($source, $target): bool {
-		if (strpos($source, $target) === 0) {
+		if (str_starts_with($source, $target)) {
 			$part = substr($source, strlen($target));
 			//This is a rename of the transfer file to the original file
-			if (strpos($part, '.ocTransferId') === 0) {
+			if (str_starts_with($part, '.ocTransferId')) {
 				return $this->checkPermissions($target, Constants::PERMISSION_CREATE) && parent::rename($source, $target);
 			}
 		}
@@ -188,7 +188,7 @@ public function getMetaData($path): ?array {
 		$data = parent::getMetaData($path);
 
 		if ($data && isset($data['permissions'])) {
-			$data['scan_permissions'] = isset($data['scan_permissions']) ? $data['scan_permissions'] : $data['permissions'];
+			$data['scan_permissions'] ??= $data['permissions'];
 			$data['permissions'] &= $this->getACLPermissionsForPath($path);
 		}
 
@@ -297,7 +297,7 @@ public function getDirectDownload($path): array|bool {
 
 	public function getDirectoryContent($directory): \Traversable {
 		foreach ($this->getWrapperStorage()->getDirectoryContent($directory) as $data) {
-			$data['scan_permissions'] = isset($data['scan_permissions']) ? $data['scan_permissions'] : $data['permissions'];
+			$data['scan_permissions'] ??= $data['permissions'];
 			$data['permissions'] &= $this->getACLPermissionsForPath(rtrim($directory, '/') . '/' . $data['name']);
 
 			yield $data;

lib/ACL/Rule.php

@@ -125,13 +125,9 @@ public static function xmlDeserialize(Reader $reader): Rule {
 	 */
 	public static function mergeRules(array $rules): Rule {
 		// or'ing the masks to get a new mask that masks all set permissions
-		$mask = array_reduce($rules, function (int $mask, Rule $rule): int {
-			return $mask | $rule->getMask();
-		}, 0);
+		$mask = array_reduce($rules, fn (int $mask, Rule $rule): int => $mask | $rule->getMask(), 0);
 		// or'ing the permissions combines them with allow overwriting deny
-		$permissions = array_reduce($rules, function (int $permissions, Rule $rule): int {
-			return $permissions | $rule->getPermissions();
-		}, 0);
+		$permissions = array_reduce($rules, fn (int $permissions, Rule $rule): int => $permissions | $rule->getPermissions(), 0);
 
 		return new Rule(
 			new UserMapping('dummy', ''),

lib/ACL/RuleManager.php

@@ -50,12 +50,10 @@ public function getRulesForFilesById(IUser $user, array $fileIds): array {
 		$query->select(['fileid', 'mapping_type', 'mapping_id', 'mask', 'permissions'])
 			->from('group_folders_acl')
 			->where($query->expr()->in('fileid', $query->createNamedParameter($fileIds, IQueryBuilder::PARAM_INT_ARRAY)))
-			->andWhere($query->expr()->orX(...array_map(function (IUserMapping $userMapping) use ($query): ICompositeExpression {
-				return $query->expr()->andX(
-					$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
-					$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
-				);
-			}, $userMappings)));
+			->andWhere($query->expr()->orX(...array_map(fn (IUserMapping $userMapping): ICompositeExpression => $query->expr()->andX(
+				$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
+				$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
+			), $userMappings)));
 
 		$rows = $query->executeQuery()->fetchAll();
 
@@ -81,9 +79,7 @@ public function getRulesForFilesById(IUser $user, array $fileIds): array {
 	public function getRulesForFilesByPath(IUser $user, int $storageId, array $filePaths): array {
 		$userMappings = $this->userMappingManager->getMappingsForUser($user);
 
-		$hashes = array_map(function (string $path): string {
-			return md5(trim($path, '/'));
-		}, $filePaths);
+		$hashes = array_map(fn (string $path): string => md5(trim($path, '/')), $filePaths);
 
 		$rows = [];
 		foreach (array_chunk($hashes, 1000) as $chunk) {
@@ -93,12 +89,10 @@ public function getRulesForFilesByPath(IUser $user, int $storageId, array $fileP
 				->innerJoin('a', 'filecache', 'f', $query->expr()->eq('f.fileid', 'a.fileid'))
 				->where($query->expr()->in('path_hash', $query->createNamedParameter($chunk, IQueryBuilder::PARAM_STR_ARRAY)))
 				->andWhere($query->expr()->eq('storage', $query->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)))
-				->andWhere($query->expr()->orX(...array_map(function (IUserMapping $userMapping) use ($query): ICompositeExpression {
-					return $query->expr()->andX(
-						$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
-						$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
-					);
-				}, $userMappings)));
+				->andWhere($query->expr()->orX(...array_map(fn (IUserMapping $userMapping): ICompositeExpression => $query->expr()->andX(
+					$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
+					$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
+				), $userMappings)));
 
 			$rows = array_merge($rows, $query->executeQuery()->fetchAll());
 		}
@@ -133,12 +127,10 @@ public function getRulesForFilesByParent(IUser $user, int $storageId, string $pa
 						$query->expr()->isNull('mapping_type'),
 						$query->expr()->isNull('mapping_id')
 					),
-					...array_map(function (IUserMapping $userMapping) use ($query): ICompositeExpression {
-						return $query->expr()->andX(
-							$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
-							$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
-						);
-					}, $userMappings)
+					...array_map(fn (IUserMapping $userMapping): ICompositeExpression => $query->expr()->andX(
+						$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
+						$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
+					), $userMappings)
 				)
 			);
 
@@ -176,9 +168,7 @@ private function getId(int $storageId, string $path): int {
 	 * @return array<string, Rule[]>
 	 */
 	public function getAllRulesForPaths(int $storageId, array $filePaths): array {
-		$hashes = array_map(function (string $path): string {
-			return md5(trim($path, '/'));
-		}, $filePaths);
+		$hashes = array_map(fn (string $path): string => md5(trim($path, '/')), $filePaths);
 		$query = $this->connection->getQueryBuilder();
 		$query->select(['f.fileid', 'mapping_type', 'mapping_id', 'mask', 'a.permissions', 'path'])
 			->from('group_folders_acl', 'a')
@@ -240,12 +230,10 @@ public function getRulesForPrefix(IUser $user, int $storageId, string $prefix):
 				$query->expr()->eq('path_hash', $query->createNamedParameter(md5($prefix)))
 			))
 			->andWhere($query->expr()->eq('storage', $query->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)))
-			->andWhere($query->expr()->orX(...array_map(function (IUserMapping $userMapping) use ($query): ICompositeExpression {
-				return $query->expr()->andX(
-					$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
-					$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
-				);
-			}, $userMappings)));
+			->andWhere($query->expr()->orX(...array_map(fn (IUserMapping $userMapping): ICompositeExpression => $query->expr()->andX(
+				$query->expr()->eq('mapping_type', $query->createNamedParameter($userMapping->getType())),
+				$query->expr()->eq('mapping_id', $query->createNamedParameter($userMapping->getId()))
+			), $userMappings)));
 
 		$rows = $query->executeQuery()->fetchAll();
 

lib/ACL/UserMapping/UserMappingManager.php

@@ -21,9 +21,7 @@ public function __construct(
 	}
 
 	public function getMappingsForUser(IUser $user, bool $userAssignable = true): array {
-		$groupMappings = array_values(array_map(function (IGroup $group): UserMapping {
-			return new UserMapping('group', $group->getGID(), $group->getDisplayName());
-		}, $this->groupManager->getUserGroups($user)));
+		$groupMappings = array_values(array_map(fn (IGroup $group): UserMapping => new UserMapping('group', $group->getGID(), $group->getDisplayName()), $this->groupManager->getUserGroups($user)));
 
 		return array_merge([
 			new UserMapping('user', $user->getUID(), $user->getDisplayName()),

lib/AppInfo/Application.php

@@ -91,7 +91,7 @@ public function register(IRegistrationContext $context): void {
 					$folder = $rootFolder->get('__groupfolders');
 
 					return $folder;
-				} catch (NotFoundException $e) {
+				} catch (NotFoundException) {
 					return $rootFolder->newFolder('__groupfolders');
 				}
 			}, [
@@ -100,9 +100,7 @@ public function register(IRegistrationContext $context): void {
 		});
 
 		$context->registerService(MountProvider::class, function (ContainerInterface $c): MountProvider {
-			$rootProvider = function () use ($c): Folder {
-				return $c->get('GroupAppFolder');
-			};
+			$rootProvider = fn (): Folder => $c->get('GroupAppFolder');
 			/** @var IAppConfig $config */
 			$config = $c->get(IAppConfig::class);
 			$allowRootShare = $config->getValueString('groupfolders', 'allow_root_share', 'true') === 'true';
@@ -142,17 +140,15 @@ public function register(IRegistrationContext $context): void {
 			return $trashBackend;
 		});
 
-		$context->registerService(VersionsBackend::class, function (ContainerInterface $c): VersionsBackend {
-			return new VersionsBackend(
-				$c->get(IRootFolder::class),
-				$c->get('GroupAppFolder'),
-				$c->get(MountProvider::class),
-				$c->get(LoggerInterface::class),
-				$c->get(GroupVersionsMapper::class),
-				$c->get(IMimeTypeLoader::class),
-				$c->get(IUserSession::class),
-			);
-		});
+		$context->registerService(VersionsBackend::class, fn (ContainerInterface $c): VersionsBackend => new VersionsBackend(
+			$c->get(IRootFolder::class),
+			$c->get('GroupAppFolder'),
+			$c->get(MountProvider::class),
+			$c->get(LoggerInterface::class),
+			$c->get(GroupVersionsMapper::class),
+			$c->get(IMimeTypeLoader::class),
+			$c->get(IUserSession::class),
+		));
 
 		$context->registerService(ExpireGroupBase::class, function (ContainerInterface $c): ExpireGroupBase {
 			// Multiple implementation of this class exists depending on if the trash and versions
@@ -215,9 +211,7 @@ public function register(IRegistrationContext $context): void {
 		});
 
 		$context->registerService(ACLManagerFactory::class, function (ContainerInterface $c): ACLManagerFactory {
-			$rootFolderProvider = function () use ($c): \OCP\Files\IRootFolder {
-				return $c->get(IRootFolder::class);
-			};
+			$rootFolderProvider = fn (): \OCP\Files\IRootFolder => $c->get(IRootFolder::class);
 
 			return new ACLManagerFactory(
 				$c->get(RuleManager::class),

lib/BackgroundJob/ExpireGroupVersions.php

@@ -63,9 +63,7 @@ protected function run(mixed $argument): void {
 
 		// Determine the set of folders to process
 		$folderSet = array_slice($folders, $lastFolder, $toDo);
-		$folderIDs = array_map(function (array $folder): int {
-			return $folder['id'];
-		}, $folderSet);
+		$folderIDs = array_map(fn (array $folder): int => $folder['id'], $folderSet);
 
 		// Log and start the expiration process
 		$this->logger->debug('Expiring versions for ' . count($folderSet) . ' folders', ['app' => 'cron', 'folders' => $folderIDs]);

lib/Command/ACL.php

@@ -95,11 +95,11 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 			$this->printPermissions($input, $output, $folder);
 		} elseif ($input->getOption('manage-add') && ($input->getOption('user') || $input->getOption('group'))) {
 			$mappingType = $input->getOption('user') ? 'user' : 'group';
-			$mappingId = $input->getOption('user') ? $input->getOption('user') : $input->getOption('group');
+			$mappingId = $input->getOption('user') ?: $input->getOption('group');
 			$this->folderManager->setManageACL($folder['id'], $mappingType, $mappingId, true);
 		} elseif ($input->getOption('manage-remove') && ($input->getOption('user') || $input->getOption('group'))) {
 			$mappingType = $input->getOption('user') ? 'user' : 'group';
-			$mappingId = $input->getOption('user') ? $input->getOption('user') : $input->getOption('group');
+			$mappingId = $input->getOption('user') ?: $input->getOption('group');
 			$this->folderManager->setManageACL($folder['id'], $mappingType, $mappingId, false);
 		} elseif (!$input->getArgument('path')) {
 			$output->writeln('<error><path> argument has to be set when not using --enable or --disable</error>');
@@ -115,7 +115,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 			return -3;
 		} else {
 			$mappingType = $input->getOption('user') ? 'user' : 'group';
-			$mappingId = $input->getOption('user') ? $input->getOption('user') : $input->getOption('group');
+			$mappingId = $input->getOption('user') ?: $input->getOption('group');
 			$path = $input->getArgument('path');
 			$path = trim($path, '/');
 			$permissionStrings = $input->getArgument('permissions');
@@ -196,12 +196,8 @@ private function printPermissions(InputInterface $input, OutputInterface $output
 			default:
 				$items = array_map(function (array $rulesForPath, string $path) use ($jailPathLength): array {
 					/** @var Rule[] $rulesForPath */
-					$mappings = array_map(function (Rule $rule): string {
-						return $rule->getUserMapping()->getType() . ': ' . $rule->getUserMapping()->getId();
-					}, $rulesForPath);
-					$permissions = array_map(function (Rule $rule): string {
-						return $rule->formatPermissions();
-					}, $rulesForPath);
+					$mappings = array_map(fn (Rule $rule): string => $rule->getUserMapping()->getType() . ': ' . $rule->getUserMapping()->getId(), $rulesForPath);
+					$permissions = array_map(fn (Rule $rule): string => $rule->formatPermissions(), $rulesForPath);
 					$formattedPath = substr($path, $jailPathLength);
 
 					return [
@@ -210,9 +206,7 @@ private function printPermissions(InputInterface $input, OutputInterface $output
 						'permissions' => implode("\n", $permissions),
 					];
 				}, $rules, array_keys($rules));
-				usort($items, function (array $a, array $b): int {
-					return $a['path'] <=> $b['path'];
-				});
+				usort($items, fn (array $a, array $b): int => $a['path'] <=> $b['path']);
 
 				$table = new Table($output);
 				$table->setHeaders(['Path', 'User/Group', 'Permissions']);

lib/Command/ListCommand.php

@@ -67,9 +67,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 			$folders = $this->folderManager->getAllFoldersWithSize($rootStorageId);
 		}
 
-		usort($folders, function (array $a, array $b): int {
-			return $a['id'] - $b['id'];
-		});
+		usort($folders, fn (array $a, array $b): int => $a['id'] - $b['id']);
 
 		$outputType = $input->getOption('output');
 		if (count($folders) === 0) {
@@ -85,9 +83,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 		if ($outputType === self::OUTPUT_FORMAT_JSON || $outputType === self::OUTPUT_FORMAT_JSON_PRETTY) {
 			foreach ($folders as &$folder) {
 				$folder['group_details'] = $folder['groups'];
-				$folder['groups'] = array_map(function (array $group): int {
-					return $group['permissions'];
-				}, $folder['groups']);
+				$folder['groups'] = array_map(fn (array $group): int => $group['permissions'], $folder['groups']);
 			}
 
 			$this->writeArrayInOutputFormat($input, $output, $folders);
@@ -105,9 +101,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 				}, array_keys($folder['groups']), array_values($folder['groups']));
 				$folder['groups'] = implode("\n", $groupStrings);
 				$folder['acl'] = $folder['acl'] ? 'Enabled' : 'Disabled';
-				$manageStrings = array_map(function (array $manage): string {
-					return $manage['id'] . ' (' . $manage['type'] . ')';
-				}, $folder['manage']);
+				$manageStrings = array_map(fn (array $manage): string => $manage['id'] . ' (' . $manage['type'] . ')', $folder['manage']);
 				$folder['manage'] = implode("\n", $manageStrings);
 
 				return $folder;
@@ -123,8 +117,6 @@ private function permissionsToString(int $permissions): string {
 			return 'none';
 		}
 
-		return implode(', ', array_filter(self::PERMISSION_NAMES, function (int $possiblePermission) use ($permissions): int {
-			return $possiblePermission & $permissions;
-		}, ARRAY_FILTER_USE_KEY));
+		return implode(', ', array_filter(self::PERMISSION_NAMES, fn (int $possiblePermission): int => $possiblePermission & $permissions, ARRAY_FILTER_USE_KEY));
 	}
 }

lib/Command/Scan.php

@@ -93,7 +93,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 				return -1;
 			}
 
-			$scanner->listen('\OC\Files\Cache\Scanner', 'scanFile', function (string $path) use ($output, &$statsRow): void {
+			$scanner->listen(\OC\Files\Cache\Scanner::class, 'scanFile', function (string $path) use ($output, &$statsRow): void {
 				$output->writeln("\tFile\t<info>/$path</info>", OutputInterface::VERBOSITY_VERBOSE);
 				$statsRow[2]++;
 				// abortIfInterrupted doesn't exist in nc14
@@ -102,7 +102,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 				}
 			});
 
-			$scanner->listen('\OC\Files\Cache\Scanner', 'scanFolder', function (string $path) use ($output, &$statsRow): void {
+			$scanner->listen(\OC\Files\Cache\Scanner::class, 'scanFolder', function (string $path) use ($output, &$statsRow): void {
 				$output->writeln("\tFolder\t<info>/$path</info>", OutputInterface::VERBOSITY_VERBOSE);
 				$statsRow[1]++;
 				// abortIfInterrupted doesn't exist in nc14

lib/Controller/DelegationController.php

@@ -73,7 +73,7 @@ public function getAllCircles(): DataResponse {
 
 		try {
 			$circlesManager = Server::get(CirclesManager::class);
-		} catch (ContainerExceptionInterface $e) {
+		} catch (ContainerExceptionInterface) {
 			return new DataResponse([]);
 		}