nextcloud / server

core/Command/App/CheckCode.php

Indentation +163 added lines, -163 removed lines

@@ -44,167 +44,167 @@
 
 class CheckCode extends Command implements CompletionAwareInterface  {
 
-	protected $checkers = [
-		'private' => PrivateCheck::class,
-		'deprecation' => DeprecationCheck::class,
-		'strong-comparison' => StrongComparisonCheck::class,
-	];
-
-	protected function configure() {
-		$this
-			->setName('app:check-code')
-			->setDescription('check code to be compliant')
-			->addArgument(
-				'app-id',
-				InputArgument::REQUIRED,
-				'check the specified app'
-			)
-			->addOption(
-				'checker',
-				'c',
-				InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY,
-				'enable the specified checker(s)',
-				[ 'private', 'deprecation', 'strong-comparison' ]
-			)
-			->addOption(
-				'--skip-checkers',
-				null,
-				InputOption::VALUE_NONE,
-				'skips the the code checkers to only check info.xml, language and database schema'
-			)
-			->addOption(
-				'--skip-validate-info',
-				null,
-				InputOption::VALUE_NONE,
-				'skips the info.xml/version check'
-			);
-	}
-
-	protected function execute(InputInterface $input, OutputInterface $output) {
-		$appId = $input->getArgument('app-id');
-
-		$checkList = new EmptyCheck();
-		foreach ($input->getOption('checker') as $checker) {
-			if (!isset($this->checkers[$checker])) {
-				throw new \InvalidArgumentException('Invalid checker: '.$checker);
-			}
-			$checkerClass = $this->checkers[$checker];
-			$checkList = new $checkerClass($checkList);
-		}
-
-		$codeChecker = new CodeChecker($checkList, !$input->getOption('skip-validate-info'));
-
-		$codeChecker->listen('CodeChecker', 'analyseFileBegin', function ($params) use ($output) {
-			if(OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) {
-				$output->writeln("<info>Analysing {$params}</info>");
-			}
-		});
-		$codeChecker->listen('CodeChecker', 'analyseFileFinished', function ($filename, $errors) use ($output) {
-			$count = count($errors);
-
-			// show filename if the verbosity is low, but there are errors in a file
-			if($count > 0 && OutputInterface::VERBOSITY_VERBOSE > $output->getVerbosity()) {
-				$output->writeln("<info>Analysing {$filename}</info>");
-			}
-
-			// show error count if there are errors present or the verbosity is high
-			if($count > 0 || OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) {
-				$output->writeln(" {$count} errors");
-			}
-			usort($errors, function ($a, $b) {
-				return $a['line'] >$b['line'];
-			});
-
-			foreach($errors as $p) {
-				$line = sprintf("%' 4d", $p['line']);
-				$output->writeln("    <error>line $line: {$p['disallowedToken']} - {$p['reason']}</error>");
-			}
-		});
-		$errors = [];
-		if(!$input->getOption('skip-checkers')) {
-			$errors = $codeChecker->analyse($appId);
-		}
-
-		if(!$input->getOption('skip-validate-info')) {
-			$infoChecker = new InfoChecker();
-			$infoChecker->listen('InfoChecker', 'parseError', function ($error) use ($output) {
-				$output->writeln("<error>Invalid appinfo.xml file found: $error</error>");
-			});
-
-			$infoErrors = $infoChecker->analyse($appId);
-
-			$errors = array_merge($errors, $infoErrors);
-
-			$languageParser = new LanguageParseChecker();
-			$languageErrors = $languageParser->analyse($appId);
-
-			foreach ($languageErrors as $languageError) {
-				$output->writeln("<error>$languageError</error>");
-			}
-
-			$errors = array_merge($errors, $languageErrors);
-
-			$databaseSchema = new DatabaseSchemaChecker();
-			$schemaErrors = $databaseSchema->analyse($appId);
-
-			foreach ($schemaErrors['errors'] as $schemaError) {
-				$output->writeln("<error>$schemaError</error>");
-			}
-			foreach ($schemaErrors['warnings'] as $schemaWarning) {
-				$output->writeln("<comment>$schemaWarning</comment>");
-			}
-
-			$errors = array_merge($errors, $schemaErrors['errors']);
-		}
-
-		$this->analyseUpdateFile($appId, $output);
-
-		if (empty($errors)) {
-			$output->writeln('<info>App is compliant - awesome job!</info>');
-			return 0;
-		} else {
-			$output->writeln('<error>App is not compliant</error>');
-			return 101;
-		}
-	}
-
-	/**
-	 * @param string $appId
-	 * @param $output
-	 */
-	private function analyseUpdateFile($appId, OutputInterface $output) {
-		$appPath = \OC_App::getAppPath($appId);
-		if ($appPath === false) {
-			throw new \RuntimeException("No app with given id <$appId> known.");
-		}
-
-		$updatePhp = $appPath . '/appinfo/update.php';
-		if (file_exists($updatePhp)) {
-			$output->writeln("<info>Deprecated file found: $updatePhp - please use repair steps</info>");
-		}
-	}
-
-	/**
-	 * @param string $optionName
-	 * @param CompletionContext $context
-	 * @return string[]
-	 */
-	public function completeOptionValues($optionName, CompletionContext $context) {
-		if ($optionName === 'checker') {
-			return ['private', 'deprecation', 'strong-comparison'];
-		}
-		return [];
-	}
-
-	/**
-	 * @param string $argumentName
-	 * @param CompletionContext $context
-	 * @return string[]
-	 */
-	public function completeArgumentValues($argumentName, CompletionContext $context) {
-		if ($argumentName === 'app-id') {
-			return \OC_App::getAllApps();
-		}
-		return [];
-	}
+    protected $checkers = [
+        'private' => PrivateCheck::class,
+        'deprecation' => DeprecationCheck::class,
+        'strong-comparison' => StrongComparisonCheck::class,
+    ];
+
+    protected function configure() {
+        $this
+            ->setName('app:check-code')
+            ->setDescription('check code to be compliant')
+            ->addArgument(
+                'app-id',
+                InputArgument::REQUIRED,
+                'check the specified app'
+            )
+            ->addOption(
+                'checker',
+                'c',
+                InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY,
+                'enable the specified checker(s)',
+                [ 'private', 'deprecation', 'strong-comparison' ]
+            )
+            ->addOption(
+                '--skip-checkers',
+                null,
+                InputOption::VALUE_NONE,
+                'skips the the code checkers to only check info.xml, language and database schema'
+            )
+            ->addOption(
+                '--skip-validate-info',
+                null,
+                InputOption::VALUE_NONE,
+                'skips the info.xml/version check'
+            );
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output) {
+        $appId = $input->getArgument('app-id');
+
+        $checkList = new EmptyCheck();
+        foreach ($input->getOption('checker') as $checker) {
+            if (!isset($this->checkers[$checker])) {
+                throw new \InvalidArgumentException('Invalid checker: '.$checker);
+            }
+            $checkerClass = $this->checkers[$checker];
+            $checkList = new $checkerClass($checkList);
+        }
+
+        $codeChecker = new CodeChecker($checkList, !$input->getOption('skip-validate-info'));
+
+        $codeChecker->listen('CodeChecker', 'analyseFileBegin', function ($params) use ($output) {
+            if(OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) {
+                $output->writeln("<info>Analysing {$params}</info>");
+            }
+        });
+        $codeChecker->listen('CodeChecker', 'analyseFileFinished', function ($filename, $errors) use ($output) {
+            $count = count($errors);
+
+            // show filename if the verbosity is low, but there are errors in a file
+            if($count > 0 && OutputInterface::VERBOSITY_VERBOSE > $output->getVerbosity()) {
+                $output->writeln("<info>Analysing {$filename}</info>");
+            }
+
+            // show error count if there are errors present or the verbosity is high
+            if($count > 0 || OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) {
+                $output->writeln(" {$count} errors");
+            }
+            usort($errors, function ($a, $b) {
+                return $a['line'] >$b['line'];
+            });
+
+            foreach($errors as $p) {
+                $line = sprintf("%' 4d", $p['line']);
+                $output->writeln("    <error>line $line: {$p['disallowedToken']} - {$p['reason']}</error>");
+            }
+        });
+        $errors = [];
+        if(!$input->getOption('skip-checkers')) {
+            $errors = $codeChecker->analyse($appId);
+        }
+
+        if(!$input->getOption('skip-validate-info')) {
+            $infoChecker = new InfoChecker();
+            $infoChecker->listen('InfoChecker', 'parseError', function ($error) use ($output) {
+                $output->writeln("<error>Invalid appinfo.xml file found: $error</error>");
+            });
+
+            $infoErrors = $infoChecker->analyse($appId);
+
+            $errors = array_merge($errors, $infoErrors);
+
+            $languageParser = new LanguageParseChecker();
+            $languageErrors = $languageParser->analyse($appId);
+
+            foreach ($languageErrors as $languageError) {
+                $output->writeln("<error>$languageError</error>");
+            }
+
+            $errors = array_merge($errors, $languageErrors);
+
+            $databaseSchema = new DatabaseSchemaChecker();
+            $schemaErrors = $databaseSchema->analyse($appId);
+
+            foreach ($schemaErrors['errors'] as $schemaError) {
+                $output->writeln("<error>$schemaError</error>");
+            }
+            foreach ($schemaErrors['warnings'] as $schemaWarning) {
+                $output->writeln("<comment>$schemaWarning</comment>");
+            }
+
+            $errors = array_merge($errors, $schemaErrors['errors']);
+        }
+
+        $this->analyseUpdateFile($appId, $output);
+
+        if (empty($errors)) {
+            $output->writeln('<info>App is compliant - awesome job!</info>');
+            return 0;
+        } else {
+            $output->writeln('<error>App is not compliant</error>');
+            return 101;
+        }
+    }
+
+    /**
+     * @param string $appId
+     * @param $output
+     */
+    private function analyseUpdateFile($appId, OutputInterface $output) {
+        $appPath = \OC_App::getAppPath($appId);
+        if ($appPath === false) {
+            throw new \RuntimeException("No app with given id <$appId> known.");
+        }
+
+        $updatePhp = $appPath . '/appinfo/update.php';
+        if (file_exists($updatePhp)) {
+            $output->writeln("<info>Deprecated file found: $updatePhp - please use repair steps</info>");
+        }
+    }
+
+    /**
+     * @param string $optionName
+     * @param CompletionContext $context
+     * @return string[]
+     */
+    public function completeOptionValues($optionName, CompletionContext $context) {
+        if ($optionName === 'checker') {
+            return ['private', 'deprecation', 'strong-comparison'];
+        }
+        return [];
+    }
+
+    /**
+     * @param string $argumentName
+     * @param CompletionContext $context
+     * @return string[]
+     */
+    public function completeArgumentValues($argumentName, CompletionContext $context) {
+        if ($argumentName === 'app-id') {
+            return \OC_App::getAllApps();
+        }
+        return [];
+    }
 }

core/Command/Encryption/ListModules.php

Indentation +56 added lines, -56 removed lines

@@ -31,69 +31,69 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 class ListModules extends Base {
-	/** @var IManager */
-	protected $encryptionManager;
+    /** @var IManager */
+    protected $encryptionManager;
 
-	/** @var IConfig */
-	protected $config;
+    /** @var IConfig */
+    protected $config;
 
-	/**
-	 * @param IManager $encryptionManager
-	 * @param IConfig $config
-	 */
-	public function __construct(
-		IManager $encryptionManager,
-		IConfig $config
-	) {
-		parent::__construct();
-		$this->encryptionManager = $encryptionManager;
-		$this->config = $config;
-	}
+    /**
+     * @param IManager $encryptionManager
+     * @param IConfig $config
+     */
+    public function __construct(
+        IManager $encryptionManager,
+        IConfig $config
+    ) {
+        parent::__construct();
+        $this->encryptionManager = $encryptionManager;
+        $this->config = $config;
+    }
 
-	protected function configure() {
-		parent::configure();
+    protected function configure() {
+        parent::configure();
 
-		$this
-			->setName('encryption:list-modules')
-			->setDescription('List all available encryption modules')
-		;
-	}
+        $this
+            ->setName('encryption:list-modules')
+            ->setDescription('List all available encryption modules')
+        ;
+    }
 
-	protected function execute(InputInterface $input, OutputInterface $output) {
-		$isMaintenanceModeEnabled = $this->config->getSystemValue('maintenance', false);
-		if ($isMaintenanceModeEnabled) {
-			$output->writeln("Maintenance mode must be disabled when listing modules");
-			$output->writeln("in order to list the relevant encryption modules correctly.");
-			return;
-		}
+    protected function execute(InputInterface $input, OutputInterface $output) {
+        $isMaintenanceModeEnabled = $this->config->getSystemValue('maintenance', false);
+        if ($isMaintenanceModeEnabled) {
+            $output->writeln("Maintenance mode must be disabled when listing modules");
+            $output->writeln("in order to list the relevant encryption modules correctly.");
+            return;
+        }
 
-		$encryptionModules = $this->encryptionManager->getEncryptionModules();
-		$defaultEncryptionModuleId = $this->encryptionManager->getDefaultEncryptionModuleId();
+        $encryptionModules = $this->encryptionManager->getEncryptionModules();
+        $defaultEncryptionModuleId = $this->encryptionManager->getDefaultEncryptionModuleId();
 
-		$encModules = [];
-		foreach ($encryptionModules as $module) {
-			$encModules[$module['id']]['displayName'] = $module['displayName'];
-			$encModules[$module['id']]['default'] = $module['id'] === $defaultEncryptionModuleId;
-		}
-		$this->writeModuleList($input, $output, $encModules);
-	}
+        $encModules = [];
+        foreach ($encryptionModules as $module) {
+            $encModules[$module['id']]['displayName'] = $module['displayName'];
+            $encModules[$module['id']]['default'] = $module['id'] === $defaultEncryptionModuleId;
+        }
+        $this->writeModuleList($input, $output, $encModules);
+    }
 
-	/**
-	 * @param InputInterface $input
-	 * @param OutputInterface $output
-	 * @param array $items
-	 */
-	protected function writeModuleList(InputInterface $input, OutputInterface $output, $items) {
-		if ($input->getOption('output') === self::OUTPUT_FORMAT_PLAIN) {
-			array_walk($items, function (&$item) {
-				if (!$item['default']) {
-					$item = $item['displayName'];
-				} else {
-					$item = $item['displayName'] . ' [default*]';
-				}
-			});
-		}
+    /**
+     * @param InputInterface $input
+     * @param OutputInterface $output
+     * @param array $items
+     */
+    protected function writeModuleList(InputInterface $input, OutputInterface $output, $items) {
+        if ($input->getOption('output') === self::OUTPUT_FORMAT_PLAIN) {
+            array_walk($items, function (&$item) {
+                if (!$item['default']) {
+                    $item = $item['displayName'];
+                } else {
+                    $item = $item['displayName'] . ' [default*]';
+                }
+            });
+        }
 
-		$this->writeArrayInOutputFormat($input, $output, $items);
-	}
+        $this->writeArrayInOutputFormat($input, $output, $items);
+    }
 }

core/Command/TwoFactorAuth/Base.php

Indentation +27 added lines, -27 removed lines

@@ -31,33 +31,33 @@
 
 class Base extends \OC\Core\Command\Base {
 
-	/** @var IUserManager */
-	protected $userManager;
+    /** @var IUserManager */
+    protected $userManager;
 
-	/**
-	 * Return possible values for the named option
-	 *
-	 * @param string $optionName
-	 * @param CompletionContext $context
-	 * @return string[]
-	 */
-	public function completeOptionValues($optionName, CompletionContext $context) {
-		return [];
-	}
+    /**
+     * Return possible values for the named option
+     *
+     * @param string $optionName
+     * @param CompletionContext $context
+     * @return string[]
+     */
+    public function completeOptionValues($optionName, CompletionContext $context) {
+        return [];
+    }
 
-	/**
-	 * Return possible values for the named argument
-	 *
-	 * @param string $argumentName
-	 * @param CompletionContext $context
-	 * @return string[]
-	 */
-	public function completeArgumentValues($argumentName, CompletionContext $context) {
-		if ($argumentName === 'uid') {
-			return array_map(function (IUser $user) {
-				return $user->getUID();
-			}, $this->userManager->search($context->getCurrentWord(), 100));
-		}
-		return [];
-	}
+    /**
+     * Return possible values for the named argument
+     *
+     * @param string $argumentName
+     * @param CompletionContext $context
+     * @return string[]
+     */
+    public function completeArgumentValues($argumentName, CompletionContext $context) {
+        if ($argumentName === 'uid') {
+            return array_map(function (IUser $user) {
+                return $user->getUID();
+            }, $this->userManager->search($context->getCurrentWord(), 100));
+        }
+        return [];
+    }
 }

core/Command/Upgrade.php

Indentation +230 added lines, -230 removed lines

@@ -48,251 +48,251 @@
 
 class Upgrade extends Command {
 
-	const ERROR_SUCCESS = 0;
-	const ERROR_NOT_INSTALLED = 1;
-	const ERROR_MAINTENANCE_MODE = 2;
-	const ERROR_UP_TO_DATE = 0;
-	const ERROR_INVALID_ARGUMENTS = 4;
-	const ERROR_FAILURE = 5;
+    const ERROR_SUCCESS = 0;
+    const ERROR_NOT_INSTALLED = 1;
+    const ERROR_MAINTENANCE_MODE = 2;
+    const ERROR_UP_TO_DATE = 0;
+    const ERROR_INVALID_ARGUMENTS = 4;
+    const ERROR_FAILURE = 5;
 
-	/** @var IConfig */
-	private $config;
+    /** @var IConfig */
+    private $config;
 
-	/** @var ILogger */
-	private $logger;
+    /** @var ILogger */
+    private $logger;
 
-	/**
-	 * @param IConfig $config
-	 * @param ILogger $logger
-	 * @param Installer $installer
-	 */
-	public function __construct(IConfig $config, ILogger $logger, Installer $installer) {
-		parent::__construct();
-		$this->config = $config;
-		$this->logger = $logger;
-		$this->installer = $installer;
-	}
+    /**
+     * @param IConfig $config
+     * @param ILogger $logger
+     * @param Installer $installer
+     */
+    public function __construct(IConfig $config, ILogger $logger, Installer $installer) {
+        parent::__construct();
+        $this->config = $config;
+        $this->logger = $logger;
+        $this->installer = $installer;
+    }
 
-	protected function configure() {
-		$this
-			->setName('upgrade')
-			->setDescription('run upgrade routines after installation of a new release. The release has to be installed before.');
-	}
+    protected function configure() {
+        $this
+            ->setName('upgrade')
+            ->setDescription('run upgrade routines after installation of a new release. The release has to be installed before.');
+    }
 
-	/**
-	 * Execute the upgrade command
-	 *
-	 * @param InputInterface $input input interface
-	 * @param OutputInterface $output output interface
-	 */
-	protected function execute(InputInterface $input, OutputInterface $output) {
+    /**
+     * Execute the upgrade command
+     *
+     * @param InputInterface $input input interface
+     * @param OutputInterface $output output interface
+     */
+    protected function execute(InputInterface $input, OutputInterface $output) {
 
-		if(Util::needUpgrade()) {
-			if (OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
-				// Prepend each line with a little timestamp
-				$timestampFormatter = new TimestampFormatter($this->config, $output->getFormatter());
-				$output->setFormatter($timestampFormatter);
-			}
+        if(Util::needUpgrade()) {
+            if (OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
+                // Prepend each line with a little timestamp
+                $timestampFormatter = new TimestampFormatter($this->config, $output->getFormatter());
+                $output->setFormatter($timestampFormatter);
+            }
 
-			$self = $this;
-			$updater = new Updater(
-					$this->config,
-					\OC::$server->getIntegrityCodeChecker(),
-					$this->logger,
-					$this->installer
-			);
+            $self = $this;
+            $updater = new Updater(
+                    $this->config,
+                    \OC::$server->getIntegrityCodeChecker(),
+                    $this->logger,
+                    $this->installer
+            );
 
-			$dispatcher = \OC::$server->getEventDispatcher();
-			$progress = new ProgressBar($output);
-			$progress->setFormat(" %message%\n %current%/%max% [%bar%] %percent:3s%%");
-			$listener = function ($event) use ($progress, $output) {
-				if ($event instanceof GenericEvent) {
-					$message = $event->getSubject();
-					if (OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
-						$output->writeln(' Checking table ' . $message);
-					} else {
-						if (strlen($message) > 60) {
-							$message = substr($message, 0, 57) . '...';
-						}
-						$progress->setMessage($message);
-						if ($event[0] === 1) {
-							$output->writeln('');
-							$progress->start($event[1]);
-						}
-						$progress->setProgress($event[0]);
-						if ($event[0] === $event[1]) {
-							$progress->setMessage('Done');
-							$progress->finish();
-							$output->writeln('');
-						}
-					}
-				}
-			};
-			$repairListener = function ($event) use ($progress, $output) {
-				if (!$event instanceof GenericEvent) {
-					return;
-				}
-				switch ($event->getSubject()) {
-					case '\OC\Repair::startProgress':
-						$progress->setMessage('Starting ...');
-						$output->writeln($event->getArgument(1));
-						$output->writeln('');
-						$progress->start($event->getArgument(0));
-						break;
-					case '\OC\Repair::advance':
-						$desc = $event->getArgument(1);
-						if (!empty($desc)) {
-							$progress->setMessage($desc);
-						}
-						$progress->advance($event->getArgument(0));
+            $dispatcher = \OC::$server->getEventDispatcher();
+            $progress = new ProgressBar($output);
+            $progress->setFormat(" %message%\n %current%/%max% [%bar%] %percent:3s%%");
+            $listener = function ($event) use ($progress, $output) {
+                if ($event instanceof GenericEvent) {
+                    $message = $event->getSubject();
+                    if (OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
+                        $output->writeln(' Checking table ' . $message);
+                    } else {
+                        if (strlen($message) > 60) {
+                            $message = substr($message, 0, 57) . '...';
+                        }
+                        $progress->setMessage($message);
+                        if ($event[0] === 1) {
+                            $output->writeln('');
+                            $progress->start($event[1]);
+                        }
+                        $progress->setProgress($event[0]);
+                        if ($event[0] === $event[1]) {
+                            $progress->setMessage('Done');
+                            $progress->finish();
+                            $output->writeln('');
+                        }
+                    }
+                }
+            };
+            $repairListener = function ($event) use ($progress, $output) {
+                if (!$event instanceof GenericEvent) {
+                    return;
+                }
+                switch ($event->getSubject()) {
+                    case '\OC\Repair::startProgress':
+                        $progress->setMessage('Starting ...');
+                        $output->writeln($event->getArgument(1));
+                        $output->writeln('');
+                        $progress->start($event->getArgument(0));
+                        break;
+                    case '\OC\Repair::advance':
+                        $desc = $event->getArgument(1);
+                        if (!empty($desc)) {
+                            $progress->setMessage($desc);
+                        }
+                        $progress->advance($event->getArgument(0));
 
-						break;
-					case '\OC\Repair::finishProgress':
-						$progress->setMessage('Done');
-						$progress->finish();
-						$output->writeln('');
-						break;
-					case '\OC\Repair::step':
-						if(OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
-							$output->writeln('<info>Repair step: ' . $event->getArgument(0) . '</info>');
-						}
-						break;
-					case '\OC\Repair::info':
-						if(OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
-							$output->writeln('<info>Repair info: ' . $event->getArgument(0) . '</info>');
-						}
-						break;
-					case '\OC\Repair::warning':
-						$output->writeln('<error>Repair warning: ' . $event->getArgument(0) . '</error>');
-						break;
-					case '\OC\Repair::error':
-						$output->writeln('<error>Repair error: ' . $event->getArgument(0) . '</error>');
-						break;
-				}
-			};
+                        break;
+                    case '\OC\Repair::finishProgress':
+                        $progress->setMessage('Done');
+                        $progress->finish();
+                        $output->writeln('');
+                        break;
+                    case '\OC\Repair::step':
+                        if(OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
+                            $output->writeln('<info>Repair step: ' . $event->getArgument(0) . '</info>');
+                        }
+                        break;
+                    case '\OC\Repair::info':
+                        if(OutputInterface::VERBOSITY_NORMAL < $output->getVerbosity()) {
+                            $output->writeln('<info>Repair info: ' . $event->getArgument(0) . '</info>');
+                        }
+                        break;
+                    case '\OC\Repair::warning':
+                        $output->writeln('<error>Repair warning: ' . $event->getArgument(0) . '</error>');
+                        break;
+                    case '\OC\Repair::error':
+                        $output->writeln('<error>Repair error: ' . $event->getArgument(0) . '</error>');
+                        break;
+                }
+            };
 
-			$dispatcher->addListener('\OC\DB\Migrator::executeSql', $listener);
-			$dispatcher->addListener('\OC\DB\Migrator::checkTable', $listener);
-			$dispatcher->addListener('\OC\Repair::startProgress', $repairListener);
-			$dispatcher->addListener('\OC\Repair::advance', $repairListener);
-			$dispatcher->addListener('\OC\Repair::finishProgress', $repairListener);
-			$dispatcher->addListener('\OC\Repair::step', $repairListener);
-			$dispatcher->addListener('\OC\Repair::info', $repairListener);
-			$dispatcher->addListener('\OC\Repair::warning', $repairListener);
-			$dispatcher->addListener('\OC\Repair::error', $repairListener);
+            $dispatcher->addListener('\OC\DB\Migrator::executeSql', $listener);
+            $dispatcher->addListener('\OC\DB\Migrator::checkTable', $listener);
+            $dispatcher->addListener('\OC\Repair::startProgress', $repairListener);
+            $dispatcher->addListener('\OC\Repair::advance', $repairListener);
+            $dispatcher->addListener('\OC\Repair::finishProgress', $repairListener);
+            $dispatcher->addListener('\OC\Repair::step', $repairListener);
+            $dispatcher->addListener('\OC\Repair::info', $repairListener);
+            $dispatcher->addListener('\OC\Repair::warning', $repairListener);
+            $dispatcher->addListener('\OC\Repair::error', $repairListener);
 
 
-			$updater->listen('\OC\Updater', 'maintenanceEnabled', function () use ($output) {
-				$output->writeln('<info>Turned on maintenance mode</info>');
-			});
-			$updater->listen('\OC\Updater', 'maintenanceDisabled', function () use ($output) {
-				$output->writeln('<info>Turned off maintenance mode</info>');
-			});
-			$updater->listen('\OC\Updater', 'maintenanceActive', function () use ($output) {
-				$output->writeln('<info>Maintenance mode is kept active</info>');
-			});
-			$updater->listen('\OC\Updater', 'updateEnd',
-				function ($success) use ($output, $self) {
-					if ($success) {
-						$message = "<info>Update successful</info>";
-					} else {
-						$message = "<error>Update failed</error>";
-					}
-					$output->writeln($message);
-				});
-			$updater->listen('\OC\Updater', 'dbUpgradeBefore', function () use ($output) {
-				$output->writeln('<info>Updating database schema</info>');
-			});
-			$updater->listen('\OC\Updater', 'dbUpgrade', function () use ($output) {
-				$output->writeln('<info>Updated database</info>');
-			});
-			$updater->listen('\OC\Updater', 'dbSimulateUpgradeBefore', function () use ($output) {
-				$output->writeln('<info>Checking whether the database schema can be updated (this can take a long time depending on the database size)</info>');
-			});
-			$updater->listen('\OC\Updater', 'dbSimulateUpgrade', function () use ($output) {
-				$output->writeln('<info>Checked database schema update</info>');
-			});
-			$updater->listen('\OC\Updater', 'incompatibleAppDisabled', function ($app) use ($output) {
-				$output->writeln('<comment>Disabled incompatible app: ' . $app . '</comment>');
-			});
-			$updater->listen('\OC\Updater', 'checkAppStoreAppBefore', function ($app) use ($output) {
-				$output->writeln('<info>Checking for update of app ' . $app . ' in appstore</info>');
-			});
-			$updater->listen('\OC\Updater', 'upgradeAppStoreApp', function ($app) use ($output) {
-				$output->writeln('<info>Update app ' . $app . ' from appstore</info>');
-			});
-			$updater->listen('\OC\Updater', 'checkAppStoreApp', function ($app) use ($output) {
-				$output->writeln('<info>Checked for update of app "' . $app . '" in appstore </info>');
-			});
-			$updater->listen('\OC\Updater', 'appUpgradeCheckBefore', function () use ($output) {
-				$output->writeln('<info>Checking updates of apps</info>');
-			});
-			$updater->listen('\OC\Updater', 'appSimulateUpdate', function ($app) use ($output) {
-				$output->writeln("<info>Checking whether the database schema for <$app> can be updated (this can take a long time depending on the database size)</info>");
-			});
-			$updater->listen('\OC\Updater', 'appUpgradeCheck', function () use ($output) {
-				$output->writeln('<info>Checked database schema update for apps</info>');
-			});
-			$updater->listen('\OC\Updater', 'appUpgradeStarted', function ($app, $version) use ($output) {
-				$output->writeln("<info>Updating <$app> ...</info>");
-			});
-			$updater->listen('\OC\Updater', 'appUpgrade', function ($app, $version) use ($output) {
-				$output->writeln("<info>Updated <$app> to $version</info>");
-			});
-			$updater->listen('\OC\Updater', 'failure', function ($message) use ($output, $self) {
-				$output->writeln("<error>$message</error>");
-			});
-			$updater->listen('\OC\Updater', 'setDebugLogLevel', function ($logLevel, $logLevelName) use ($output) {
-				$output->writeln("<info>Set log level to debug</info>");
-			});
-			$updater->listen('\OC\Updater', 'resetLogLevel', function ($logLevel, $logLevelName) use ($output) {
-				$output->writeln("<info>Reset log level</info>");
-			});
-			$updater->listen('\OC\Updater', 'startCheckCodeIntegrity', function () use ($output) {
-				$output->writeln("<info>Starting code integrity check...</info>");
-			});
-			$updater->listen('\OC\Updater', 'finishedCheckCodeIntegrity', function () use ($output) {
-				$output->writeln("<info>Finished code integrity check</info>");
-			});
+            $updater->listen('\OC\Updater', 'maintenanceEnabled', function () use ($output) {
+                $output->writeln('<info>Turned on maintenance mode</info>');
+            });
+            $updater->listen('\OC\Updater', 'maintenanceDisabled', function () use ($output) {
+                $output->writeln('<info>Turned off maintenance mode</info>');
+            });
+            $updater->listen('\OC\Updater', 'maintenanceActive', function () use ($output) {
+                $output->writeln('<info>Maintenance mode is kept active</info>');
+            });
+            $updater->listen('\OC\Updater', 'updateEnd',
+                function ($success) use ($output, $self) {
+                    if ($success) {
+                        $message = "<info>Update successful</info>";
+                    } else {
+                        $message = "<error>Update failed</error>";
+                    }
+                    $output->writeln($message);
+                });
+            $updater->listen('\OC\Updater', 'dbUpgradeBefore', function () use ($output) {
+                $output->writeln('<info>Updating database schema</info>');
+            });
+            $updater->listen('\OC\Updater', 'dbUpgrade', function () use ($output) {
+                $output->writeln('<info>Updated database</info>');
+            });
+            $updater->listen('\OC\Updater', 'dbSimulateUpgradeBefore', function () use ($output) {
+                $output->writeln('<info>Checking whether the database schema can be updated (this can take a long time depending on the database size)</info>');
+            });
+            $updater->listen('\OC\Updater', 'dbSimulateUpgrade', function () use ($output) {
+                $output->writeln('<info>Checked database schema update</info>');
+            });
+            $updater->listen('\OC\Updater', 'incompatibleAppDisabled', function ($app) use ($output) {
+                $output->writeln('<comment>Disabled incompatible app: ' . $app . '</comment>');
+            });
+            $updater->listen('\OC\Updater', 'checkAppStoreAppBefore', function ($app) use ($output) {
+                $output->writeln('<info>Checking for update of app ' . $app . ' in appstore</info>');
+            });
+            $updater->listen('\OC\Updater', 'upgradeAppStoreApp', function ($app) use ($output) {
+                $output->writeln('<info>Update app ' . $app . ' from appstore</info>');
+            });
+            $updater->listen('\OC\Updater', 'checkAppStoreApp', function ($app) use ($output) {
+                $output->writeln('<info>Checked for update of app "' . $app . '" in appstore </info>');
+            });
+            $updater->listen('\OC\Updater', 'appUpgradeCheckBefore', function () use ($output) {
+                $output->writeln('<info>Checking updates of apps</info>');
+            });
+            $updater->listen('\OC\Updater', 'appSimulateUpdate', function ($app) use ($output) {
+                $output->writeln("<info>Checking whether the database schema for <$app> can be updated (this can take a long time depending on the database size)</info>");
+            });
+            $updater->listen('\OC\Updater', 'appUpgradeCheck', function () use ($output) {
+                $output->writeln('<info>Checked database schema update for apps</info>');
+            });
+            $updater->listen('\OC\Updater', 'appUpgradeStarted', function ($app, $version) use ($output) {
+                $output->writeln("<info>Updating <$app> ...</info>");
+            });
+            $updater->listen('\OC\Updater', 'appUpgrade', function ($app, $version) use ($output) {
+                $output->writeln("<info>Updated <$app> to $version</info>");
+            });
+            $updater->listen('\OC\Updater', 'failure', function ($message) use ($output, $self) {
+                $output->writeln("<error>$message</error>");
+            });
+            $updater->listen('\OC\Updater', 'setDebugLogLevel', function ($logLevel, $logLevelName) use ($output) {
+                $output->writeln("<info>Set log level to debug</info>");
+            });
+            $updater->listen('\OC\Updater', 'resetLogLevel', function ($logLevel, $logLevelName) use ($output) {
+                $output->writeln("<info>Reset log level</info>");
+            });
+            $updater->listen('\OC\Updater', 'startCheckCodeIntegrity', function () use ($output) {
+                $output->writeln("<info>Starting code integrity check...</info>");
+            });
+            $updater->listen('\OC\Updater', 'finishedCheckCodeIntegrity', function () use ($output) {
+                $output->writeln("<info>Finished code integrity check</info>");
+            });
 
-			$success = $updater->upgrade();
+            $success = $updater->upgrade();
 
-			$this->postUpgradeCheck($input, $output);
+            $this->postUpgradeCheck($input, $output);
 
-			if(!$success) {
-				return self::ERROR_FAILURE;
-			}
+            if(!$success) {
+                return self::ERROR_FAILURE;
+            }
 
-			return self::ERROR_SUCCESS;
-		} else if($this->config->getSystemValueBool('maintenance')) {
-			//Possible scenario: Nextcloud core is updated but an app failed
-			$output->writeln('<warning>Nextcloud is in maintenance mode</warning>');
-			$output->write('<comment>Maybe an upgrade is already in process. Please check the '
-				. 'logfile (data/nextcloud.log). If you want to re-run the '
-				. 'upgrade procedure, remove the "maintenance mode" from '
-				. 'config.php and call this script again.</comment>'
-				, true);
-			return self::ERROR_MAINTENANCE_MODE;
-		} else {
-			$output->writeln('<info>Nextcloud is already latest version</info>');
-			return self::ERROR_UP_TO_DATE;
-		}
-	}
+            return self::ERROR_SUCCESS;
+        } else if($this->config->getSystemValueBool('maintenance')) {
+            //Possible scenario: Nextcloud core is updated but an app failed
+            $output->writeln('<warning>Nextcloud is in maintenance mode</warning>');
+            $output->write('<comment>Maybe an upgrade is already in process. Please check the '
+                . 'logfile (data/nextcloud.log). If you want to re-run the '
+                . 'upgrade procedure, remove the "maintenance mode" from '
+                . 'config.php and call this script again.</comment>'
+                , true);
+            return self::ERROR_MAINTENANCE_MODE;
+        } else {
+            $output->writeln('<info>Nextcloud is already latest version</info>');
+            return self::ERROR_UP_TO_DATE;
+        }
+    }
 
-	/**
-	 * Perform a post upgrade check (specific to the command line tool)
-	 *
-	 * @param InputInterface $input input interface
-	 * @param OutputInterface $output output interface
-	 */
-	protected function postUpgradeCheck(InputInterface $input, OutputInterface $output) {
-		$trustedDomains = $this->config->getSystemValue('trusted_domains', []);
-		if (empty($trustedDomains)) {
-			$output->write(
-				'<warning>The setting "trusted_domains" could not be ' .
-				'set automatically by the upgrade script, ' .
-				'please set it manually</warning>'
-			);
-		}
-	}
+    /**
+     * Perform a post upgrade check (specific to the command line tool)
+     *
+     * @param InputInterface $input input interface
+     * @param OutputInterface $output output interface
+     */
+    protected function postUpgradeCheck(InputInterface $input, OutputInterface $output) {
+        $trustedDomains = $this->config->getSystemValue('trusted_domains', []);
+        if (empty($trustedDomains)) {
+            $output->write(
+                '<warning>The setting "trusted_domains" could not be ' .
+                'set automatically by the upgrade script, ' .
+                'please set it manually</warning>'
+            );
+        }
+    }
 }

apps/files_trashbin/lib/Trashbin.php

Indentation +962 added lines, -962 removed lines

@@ -55,966 +55,966 @@
 
 class Trashbin {
 
-	// unit: percentage; 50% of available disk space/quota
-	const DEFAULTMAXSIZE = 50;
-
-	/**
-	 * Whether versions have already be rescanned during this PHP request
-	 *
-	 * @var bool
-	 */
-	private static $scannedVersions = false;
-
-	/**
-	 * Ensure we don't need to scan the file during the move to trash
-	 * by triggering the scan in the pre-hook
-	 *
-	 * @param array $params
-	 */
-	public static function ensureFileScannedHook($params) {
-		try {
-			self::getUidAndFilename($params['path']);
-		} catch (NotFoundException $e) {
-			// nothing to scan for non existing files
-		}
-	}
-
-	/**
-	 * get the UID of the owner of the file and the path to the file relative to
-	 * owners files folder
-	 *
-	 * @param string $filename
-	 * @return array
-	 * @throws \OC\User\NoUserException
-	 */
-	public static function getUidAndFilename($filename) {
-		$uid = Filesystem::getOwner($filename);
-		$userManager = \OC::$server->getUserManager();
-		// if the user with the UID doesn't exists, e.g. because the UID points
-		// to a remote user with a federated cloud ID we use the current logged-in
-		// user. We need a valid local user to move the file to the right trash bin
-		if (!$userManager->userExists($uid)) {
-			$uid = User::getUser();
-		}
-		if (!$uid) {
-			// no owner, usually because of share link from ext storage
-			return [null, null];
-		}
-		Filesystem::initMountPoints($uid);
-		if ($uid !== User::getUser()) {
-			$info = Filesystem::getFileInfo($filename);
-			$ownerView = new View('/' . $uid . '/files');
-			try {
-				$filename = $ownerView->getPath($info['fileid']);
-			} catch (NotFoundException $e) {
-				$filename = null;
-			}
-		}
-		return [$uid, $filename];
-	}
-
-	/**
-	 * get original location of files for user
-	 *
-	 * @param string $user
-	 * @return array (filename => array (timestamp => original location))
-	 */
-	public static function getLocations($user) {
-		$query = \OC_DB::prepare('SELECT `id`, `timestamp`, `location`'
-			. ' FROM `*PREFIX*files_trash` WHERE `user`=?');
-		$result = $query->execute([$user]);
-		$array = [];
-		while ($row = $result->fetchRow()) {
-			if (isset($array[$row['id']])) {
-				$array[$row['id']][$row['timestamp']] = $row['location'];
-			} else {
-				$array[$row['id']] = [$row['timestamp'] => $row['location']];
-			}
-		}
-		return $array;
-	}
-
-	/**
-	 * get original location of file
-	 *
-	 * @param string $user
-	 * @param string $filename
-	 * @param string $timestamp
-	 * @return string original location
-	 */
-	public static function getLocation($user, $filename, $timestamp) {
-		$query = \OC_DB::prepare('SELECT `location` FROM `*PREFIX*files_trash`'
-			. ' WHERE `user`=? AND `id`=? AND `timestamp`=?');
-		$result = $query->execute([$user, $filename, $timestamp])->fetchAll();
-		if (isset($result[0]['location'])) {
-			return $result[0]['location'];
-		} else {
-			return false;
-		}
-	}
-
-	private static function setUpTrash($user) {
-		$view = new View('/' . $user);
-		if (!$view->is_dir('files_trashbin')) {
-			$view->mkdir('files_trashbin');
-		}
-		if (!$view->is_dir('files_trashbin/files')) {
-			$view->mkdir('files_trashbin/files');
-		}
-		if (!$view->is_dir('files_trashbin/versions')) {
-			$view->mkdir('files_trashbin/versions');
-		}
-		if (!$view->is_dir('files_trashbin/keys')) {
-			$view->mkdir('files_trashbin/keys');
-		}
-	}
-
-
-	/**
-	 * copy file to owners trash
-	 *
-	 * @param string $sourcePath
-	 * @param string $owner
-	 * @param string $targetPath
-	 * @param $user
-	 * @param integer $timestamp
-	 */
-	private static function copyFilesToUser($sourcePath, $owner, $targetPath, $user, $timestamp) {
-		self::setUpTrash($owner);
-
-		$targetFilename = basename($targetPath);
-		$targetLocation = dirname($targetPath);
-
-		$sourceFilename = basename($sourcePath);
-
-		$view = new View('/');
-
-		$target = $user . '/files_trashbin/files/' . $targetFilename . '.d' . $timestamp;
-		$source = $owner . '/files_trashbin/files/' . $sourceFilename . '.d' . $timestamp;
-		$free = $view->free_space($target);
-		$isUnknownOrUnlimitedFreeSpace = $free < 0;
-		$isEnoughFreeSpaceLeft = $view->filesize($source) < $free;
-		if ($isUnknownOrUnlimitedFreeSpace || $isEnoughFreeSpaceLeft) {
-			self::copy_recursive($source, $target, $view);
-		}
-
-
-		if ($view->file_exists($target)) {
-			$query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`user`) VALUES (?,?,?,?)");
-			$result = $query->execute([$targetFilename, $timestamp, $targetLocation, $user]);
-			if (!$result) {
-				\OC::$server->getLogger()->error('trash bin database couldn\'t be updated for the files owner', ['app' => 'files_trashbin']);
-			}
-		}
-	}
-
-
-	/**
-	 * move file to the trash bin
-	 *
-	 * @param string $file_path path to the deleted file/directory relative to the files root directory
-	 * @param bool $ownerOnly delete for owner only (if file gets moved out of a shared folder)
-	 *
-	 * @return bool
-	 */
-	public static function move2trash($file_path, $ownerOnly = false) {
-		// get the user for which the filesystem is setup
-		$root = Filesystem::getRoot();
-		list(, $user) = explode('/', $root);
-		list($owner, $ownerPath) = self::getUidAndFilename($file_path);
-
-		// if no owner found (ex: ext storage + share link), will use the current user's trashbin then
-		if (is_null($owner)) {
-			$owner = $user;
-			$ownerPath = $file_path;
-		}
-
-		$ownerView = new View('/' . $owner);
-		// file has been deleted in between
-		if (is_null($ownerPath) || $ownerPath === '' || !$ownerView->file_exists('/files/' . $ownerPath)) {
-			return true;
-		}
-
-		self::setUpTrash($user);
-		if ($owner !== $user) {
-			// also setup for owner
-			self::setUpTrash($owner);
-		}
-
-		$path_parts = pathinfo($ownerPath);
-
-		$filename = $path_parts['basename'];
-		$location = $path_parts['dirname'];
-		$timestamp = time();
-
-		// disable proxy to prevent recursive calls
-		$trashPath = '/files_trashbin/files/' . $filename . '.d' . $timestamp;
-
-		/** @var \OC\Files\Storage\Storage $trashStorage */
-		list($trashStorage, $trashInternalPath) = $ownerView->resolvePath($trashPath);
-		/** @var \OC\Files\Storage\Storage $sourceStorage */
-		list($sourceStorage, $sourceInternalPath) = $ownerView->resolvePath('/files/' . $ownerPath);
-		try {
-			$moveSuccessful = true;
-			if ($trashStorage->file_exists($trashInternalPath)) {
-				$trashStorage->unlink($trashInternalPath);
-			}
-			$trashStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $trashInternalPath);
-		} catch (\OCA\Files_Trashbin\Exceptions\CopyRecursiveException $e) {
-			$moveSuccessful = false;
-			if ($trashStorage->file_exists($trashInternalPath)) {
-				$trashStorage->unlink($trashInternalPath);
-			}
-			\OC::$server->getLogger()->error('Couldn\'t move ' . $file_path . ' to the trash bin', ['app' => 'files_trashbin']);
-		}
-
-		if ($sourceStorage->file_exists($sourceInternalPath)) { // failed to delete the original file, abort
-			if ($sourceStorage->is_dir($sourceInternalPath)) {
-				$sourceStorage->rmdir($sourceInternalPath);
-			} else {
-				$sourceStorage->unlink($sourceInternalPath);
-			}
-			return false;
-		}
-
-		$trashStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $trashInternalPath);
-
-		if ($moveSuccessful) {
-			$query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`user`) VALUES (?,?,?,?)");
-			$result = $query->execute([$filename, $timestamp, $location, $owner]);
-			if (!$result) {
-				\OC::$server->getLogger()->error('trash bin database couldn\'t be updated', ['app' => 'files_trashbin']);
-			}
-			\OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_moveToTrash', ['filePath' => Filesystem::normalizePath($file_path),
-				'trashPath' => Filesystem::normalizePath($filename . '.d' . $timestamp)]);
-
-			self::retainVersions($filename, $owner, $ownerPath, $timestamp);
-
-			// if owner !== user we need to also add a copy to the users trash
-			if ($user !== $owner && $ownerOnly === false) {
-				self::copyFilesToUser($ownerPath, $owner, $file_path, $user, $timestamp);
-			}
-		}
-
-		self::scheduleExpire($user);
-
-		// if owner !== user we also need to update the owners trash size
-		if ($owner !== $user) {
-			self::scheduleExpire($owner);
-		}
-
-		return $moveSuccessful;
-	}
-
-	/**
-	 * Move file versions to trash so that they can be restored later
-	 *
-	 * @param string $filename of deleted file
-	 * @param string $owner owner user id
-	 * @param string $ownerPath path relative to the owner's home storage
-	 * @param integer $timestamp when the file was deleted
-	 */
-	private static function retainVersions($filename, $owner, $ownerPath, $timestamp) {
-		if (\OCP\App::isEnabled('files_versions') && !empty($ownerPath)) {
-
-			$user = User::getUser();
-			$rootView = new View('/');
-
-			if ($rootView->is_dir($owner . '/files_versions/' . $ownerPath)) {
-				if ($owner !== $user) {
-					self::copy_recursive($owner . '/files_versions/' . $ownerPath, $owner . '/files_trashbin/versions/' . basename($ownerPath) . '.d' . $timestamp, $rootView);
-				}
-				self::move($rootView, $owner . '/files_versions/' . $ownerPath, $user . '/files_trashbin/versions/' . $filename . '.d' . $timestamp);
-			} else if ($versions = \OCA\Files_Versions\Storage::getVersions($owner, $ownerPath)) {
-
-				foreach ($versions as $v) {
-					if ($owner !== $user) {
-						self::copy($rootView, $owner . '/files_versions' . $v['path'] . '.v' . $v['version'], $owner . '/files_trashbin/versions/' . $v['name'] . '.v' . $v['version'] . '.d' . $timestamp);
-					}
-					self::move($rootView, $owner . '/files_versions' . $v['path'] . '.v' . $v['version'], $user . '/files_trashbin/versions/' . $filename . '.v' . $v['version'] . '.d' . $timestamp);
-				}
-			}
-		}
-	}
-
-	/**
-	 * Move a file or folder on storage level
-	 *
-	 * @param View $view
-	 * @param string $source
-	 * @param string $target
-	 * @return bool
-	 */
-	private static function move(View $view, $source, $target) {
-		/** @var \OC\Files\Storage\Storage $sourceStorage */
-		list($sourceStorage, $sourceInternalPath) = $view->resolvePath($source);
-		/** @var \OC\Files\Storage\Storage $targetStorage */
-		list($targetStorage, $targetInternalPath) = $view->resolvePath($target);
-		/** @var \OC\Files\Storage\Storage $ownerTrashStorage */
-
-		$result = $targetStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		if ($result) {
-			$targetStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		}
-		return $result;
-	}
-
-	/**
-	 * Copy a file or folder on storage level
-	 *
-	 * @param View $view
-	 * @param string $source
-	 * @param string $target
-	 * @return bool
-	 */
-	private static function copy(View $view, $source, $target) {
-		/** @var \OC\Files\Storage\Storage $sourceStorage */
-		list($sourceStorage, $sourceInternalPath) = $view->resolvePath($source);
-		/** @var \OC\Files\Storage\Storage $targetStorage */
-		list($targetStorage, $targetInternalPath) = $view->resolvePath($target);
-		/** @var \OC\Files\Storage\Storage $ownerTrashStorage */
-
-		$result = $targetStorage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		if ($result) {
-			$targetStorage->getUpdater()->update($targetInternalPath);
-		}
-		return $result;
-	}
-
-	/**
-	 * Restore a file or folder from trash bin
-	 *
-	 * @param string $file path to the deleted file/folder relative to "files_trashbin/files/",
-	 * including the timestamp suffix ".d12345678"
-	 * @param string $filename name of the file/folder
-	 * @param int $timestamp time when the file/folder was deleted
-	 *
-	 * @return bool true on success, false otherwise
-	 */
-	public static function restore($file, $filename, $timestamp) {
-		$user = User::getUser();
-		$view = new View('/' . $user);
-
-		$location = '';
-		if ($timestamp) {
-			$location = self::getLocation($user, $filename, $timestamp);
-			if ($location === false) {
-				\OC::$server->getLogger()->error('trash bin database inconsistent! ($user: ' . $user . ' $filename: ' . $filename . ', $timestamp: ' . $timestamp . ')', ['app' => 'files_trashbin']);
-			} else {
-				// if location no longer exists, restore file in the root directory
-				if ($location !== '/' &&
-					(!$view->is_dir('files/' . $location) ||
-						!$view->isCreatable('files/' . $location))
-				) {
-					$location = '';
-				}
-			}
-		}
-
-		// we need a  extension in case a file/dir with the same name already exists
-		$uniqueFilename = self::getUniqueFilename($location, $filename, $view);
-
-		$source = Filesystem::normalizePath('files_trashbin/files/' . $file);
-		$target = Filesystem::normalizePath('files/' . $location . '/' . $uniqueFilename);
-		if (!$view->file_exists($source)) {
-			return false;
-		}
-		$mtime = $view->filemtime($source);
-
-		// restore file
-		if (!$view->isCreatable(dirname($target))) {
-			throw new NotPermittedException("Can't restore trash item because the target folder is not writable");
-		}
-		$restoreResult = $view->rename($source, $target);
-
-		// handle the restore result
-		if ($restoreResult) {
-			$fakeRoot = $view->getRoot();
-			$view->chroot('/' . $user . '/files');
-			$view->touch('/' . $location . '/' . $uniqueFilename, $mtime);
-			$view->chroot($fakeRoot);
-			\OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_restore', ['filePath' => Filesystem::normalizePath('/' . $location . '/' . $uniqueFilename),
-				'trashPath' => Filesystem::normalizePath($file)]);
-
-			self::restoreVersions($view, $file, $filename, $uniqueFilename, $location, $timestamp);
-
-			if ($timestamp) {
-				$query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=? AND `id`=? AND `timestamp`=?');
-				$query->execute([$user, $filename, $timestamp]);
-			}
-
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * restore versions from trash bin
-	 *
-	 * @param View $view file view
-	 * @param string $file complete path to file
-	 * @param string $filename name of file once it was deleted
-	 * @param string $uniqueFilename new file name to restore the file without overwriting existing files
-	 * @param string $location location if file
-	 * @param int $timestamp deletion time
-	 * @return false|null
-	 */
-	private static function restoreVersions(View $view, $file, $filename, $uniqueFilename, $location, $timestamp) {
-
-		if (\OCP\App::isEnabled('files_versions')) {
-
-			$user = User::getUser();
-			$rootView = new View('/');
-
-			$target = Filesystem::normalizePath('/' . $location . '/' . $uniqueFilename);
-
-			list($owner, $ownerPath) = self::getUidAndFilename($target);
-
-			// file has been deleted in between
-			if (empty($ownerPath)) {
-				return false;
-			}
-
-			if ($timestamp) {
-				$versionedFile = $filename;
-			} else {
-				$versionedFile = $file;
-			}
-
-			if ($view->is_dir('/files_trashbin/versions/' . $file)) {
-				$rootView->rename(Filesystem::normalizePath($user . '/files_trashbin/versions/' . $file), Filesystem::normalizePath($owner . '/files_versions/' . $ownerPath));
-			} else if ($versions = self::getVersionsFromTrash($versionedFile, $timestamp, $user)) {
-				foreach ($versions as $v) {
-					if ($timestamp) {
-						$rootView->rename($user . '/files_trashbin/versions/' . $versionedFile . '.v' . $v . '.d' . $timestamp, $owner . '/files_versions/' . $ownerPath . '.v' . $v);
-					} else {
-						$rootView->rename($user . '/files_trashbin/versions/' . $versionedFile . '.v' . $v, $owner . '/files_versions/' . $ownerPath . '.v' . $v);
-					}
-				}
-			}
-		}
-	}
-
-	/**
-	 * delete all files from the trash
-	 */
-	public static function deleteAll() {
-		$user = User::getUser();
-		$userRoot = \OC::$server->getUserFolder($user)->getParent();
-		$view = new View('/' . $user);
-		$fileInfos = $view->getDirectoryContent('files_trashbin/files');
-
-		try {
-			$trash = $userRoot->get('files_trashbin');
-		} catch (NotFoundException $e) {
-			return false;
-		}
-
-		// Array to store the relative path in (after the file is deleted, the view won't be able to relativise the path anymore)
-		$filePaths = [];
-		foreach($fileInfos as $fileInfo){
-			$filePaths[] = $view->getRelativePath($fileInfo->getPath());
-		}
-		unset($fileInfos); // save memory
-
-		// Bulk PreDelete-Hook
-		\OC_Hook::emit('\OCP\Trashbin', 'preDeleteAll', ['paths' => $filePaths]);
-
-		// Single-File Hooks
-		foreach($filePaths as $path){
-			self::emitTrashbinPreDelete($path);
-		}
-
-		// actual file deletion
-		$trash->delete();
-		$query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=?');
-		$query->execute([$user]);
-
-		// Bulk PostDelete-Hook
-		\OC_Hook::emit('\OCP\Trashbin', 'deleteAll', ['paths' => $filePaths]);
-
-		// Single-File Hooks
-		foreach($filePaths as $path){
-			self::emitTrashbinPostDelete($path);
-		}
-
-		$trash = $userRoot->newFolder('files_trashbin');
-		$trash->newFolder('files');
-
-		return true;
-	}
-
-	/**
-	 * wrapper function to emit the 'preDelete' hook of \OCP\Trashbin before a file is deleted
-	 * @param string $path
-	 */
-	protected static function emitTrashbinPreDelete($path) {
-		\OC_Hook::emit('\OCP\Trashbin', 'preDelete', ['path' => $path]);
-	}
-
-	/**
-	 * wrapper function to emit the 'delete' hook of \OCP\Trashbin after a file has been deleted
-	 * @param string $path
-	 */
-	protected static function emitTrashbinPostDelete($path) {
-		\OC_Hook::emit('\OCP\Trashbin', 'delete', ['path' => $path]);
-	}
-
-	/**
-	 * delete file from trash bin permanently
-	 *
-	 * @param string $filename path to the file
-	 * @param string $user
-	 * @param int $timestamp of deletion time
-	 *
-	 * @return int size of deleted files
-	 */
-	public static function delete($filename, $user, $timestamp = null) {
-		$userRoot = \OC::$server->getUserFolder($user)->getParent();
-		$view = new View('/' . $user);
-		$size = 0;
-
-		if ($timestamp) {
-			$query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=? AND `id`=? AND `timestamp`=?');
-			$query->execute([$user, $filename, $timestamp]);
-			$file = $filename . '.d' . $timestamp;
-		} else {
-			$file = $filename;
-		}
-
-		$size += self::deleteVersions($view, $file, $filename, $timestamp, $user);
-
-		try {
-			$node = $userRoot->get('/files_trashbin/files/' . $file);
-		} catch (NotFoundException $e) {
-			return $size;
-		}
-
-		if ($node instanceof Folder) {
-			$size += self::calculateSize(new View('/' . $user . '/files_trashbin/files/' . $file));
-		} else if ($node instanceof File) {
-			$size += $view->filesize('/files_trashbin/files/' . $file);
-		}
-
-		self::emitTrashbinPreDelete('/files_trashbin/files/' . $file);
-		$node->delete();
-		self::emitTrashbinPostDelete('/files_trashbin/files/' . $file);
-
-		return $size;
-	}
-
-	/**
-	 * @param View $view
-	 * @param string $file
-	 * @param string $filename
-	 * @param integer|null $timestamp
-	 * @param string $user
-	 * @return int
-	 */
-	private static function deleteVersions(View $view, $file, $filename, $timestamp, $user) {
-		$size = 0;
-		if (\OCP\App::isEnabled('files_versions')) {
-			if ($view->is_dir('files_trashbin/versions/' . $file)) {
-				$size += self::calculateSize(new View('/' . $user . '/files_trashbin/versions/' . $file));
-				$view->unlink('files_trashbin/versions/' . $file);
-			} else if ($versions = self::getVersionsFromTrash($filename, $timestamp, $user)) {
-				foreach ($versions as $v) {
-					if ($timestamp) {
-						$size += $view->filesize('/files_trashbin/versions/' . $filename . '.v' . $v . '.d' . $timestamp);
-						$view->unlink('/files_trashbin/versions/' . $filename . '.v' . $v . '.d' . $timestamp);
-					} else {
-						$size += $view->filesize('/files_trashbin/versions/' . $filename . '.v' . $v);
-						$view->unlink('/files_trashbin/versions/' . $filename . '.v' . $v);
-					}
-				}
-			}
-		}
-		return $size;
-	}
-
-	/**
-	 * check to see whether a file exists in trashbin
-	 *
-	 * @param string $filename path to the file
-	 * @param int $timestamp of deletion time
-	 * @return bool true if file exists, otherwise false
-	 */
-	public static function file_exists($filename, $timestamp = null) {
-		$user = User::getUser();
-		$view = new View('/' . $user);
-
-		if ($timestamp) {
-			$filename = $filename . '.d' . $timestamp;
-		}
-
-		$target = Filesystem::normalizePath('files_trashbin/files/' . $filename);
-		return $view->file_exists($target);
-	}
-
-	/**
-	 * deletes used space for trash bin in db if user was deleted
-	 *
-	 * @param string $uid id of deleted user
-	 * @return bool result of db delete operation
-	 */
-	public static function deleteUser($uid) {
-		$query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=?');
-		return $query->execute([$uid]);
-	}
-
-	/**
-	 * calculate remaining free space for trash bin
-	 *
-	 * @param integer $trashbinSize current size of the trash bin
-	 * @param string $user
-	 * @return int available free space for trash bin
-	 */
-	private static function calculateFreeSpace($trashbinSize, $user) {
-		$softQuota = true;
-		$userObject = \OC::$server->getUserManager()->get($user);
-		if(is_null($userObject)) {
-			return 0;
-		}
-		$quota = $userObject->getQuota();
-		if ($quota === null || $quota === 'none') {
-			$quota = Filesystem::free_space('/');
-			$softQuota = false;
-			// inf or unknown free space
-			if ($quota < 0) {
-				$quota = PHP_INT_MAX;
-			}
-		} else {
-			$quota = \OCP\Util::computerFileSize($quota);
-		}
-
-		// calculate available space for trash bin
-		// subtract size of files and current trash bin size from quota
-		if ($softQuota) {
-			$userFolder = \OC::$server->getUserFolder($user);
-			if(is_null($userFolder)) {
-				return 0;
-			}
-			$free = $quota - $userFolder->getSize(false); // remaining free space for user
-			if ($free > 0) {
-				$availableSpace = ($free * self::DEFAULTMAXSIZE / 100) - $trashbinSize; // how much space can be used for versions
-			} else {
-				$availableSpace = $free - $trashbinSize;
-			}
-		} else {
-			$availableSpace = $quota;
-		}
-
-		return $availableSpace;
-	}
-
-	/**
-	 * resize trash bin if necessary after a new file was added to Nextcloud
-	 *
-	 * @param string $user user id
-	 */
-	public static function resizeTrash($user) {
-
-		$size = self::getTrashbinSize($user);
-
-		$freeSpace = self::calculateFreeSpace($size, $user);
-
-		if ($freeSpace < 0) {
-			self::scheduleExpire($user);
-		}
-	}
-
-	/**
-	 * clean up the trash bin
-	 *
-	 * @param string $user
-	 */
-	public static function expire($user) {
-		$trashBinSize = self::getTrashbinSize($user);
-		$availableSpace = self::calculateFreeSpace($trashBinSize, $user);
-
-		$dirContent = Helper::getTrashFiles('/', $user, 'mtime');
-
-		// delete all files older then $retention_obligation
-		list($delSize, $count) = self::deleteExpiredFiles($dirContent, $user);
-
-		$availableSpace += $delSize;
-
-		// delete files from trash until we meet the trash bin size limit again
-		self::deleteFiles(array_slice($dirContent, $count), $user, $availableSpace);
-	}
-
-	/**
-	 * @param string $user
-	 */
-	private static function scheduleExpire($user) {
-		// let the admin disable auto expire
-		/** @var Application $application */
-		$application = \OC::$server->query(Application::class);
-		$expiration = $application->getContainer()->query('Expiration');
-		if ($expiration->isEnabled()) {
-			\OC::$server->getCommandBus()->push(new Expire($user));
-		}
-	}
-
-	/**
-	 * if the size limit for the trash bin is reached, we delete the oldest
-	 * files in the trash bin until we meet the limit again
-	 *
-	 * @param array $files
-	 * @param string $user
-	 * @param int $availableSpace available disc space
-	 * @return int size of deleted files
-	 */
-	protected static function deleteFiles($files, $user, $availableSpace) {
-		/** @var Application $application */
-		$application = \OC::$server->query(Application::class);
-		$expiration = $application->getContainer()->query('Expiration');
-		$size = 0;
-
-		if ($availableSpace < 0) {
-			foreach ($files as $file) {
-				if ($availableSpace < 0 && $expiration->isExpired($file['mtime'], true)) {
-					$tmp = self::delete($file['name'], $user, $file['mtime']);
-					\OC::$server->getLogger()->info('remove "' . $file['name'] . '" (' . $tmp . 'B) to meet the limit of trash bin size (50% of available quota)', ['app' => 'files_trashbin']);
-					$availableSpace += $tmp;
-					$size += $tmp;
-				} else {
-					break;
-				}
-			}
-		}
-		return $size;
-	}
-
-	/**
-	 * delete files older then max storage time
-	 *
-	 * @param array $files list of files sorted by mtime
-	 * @param string $user
-	 * @return integer[] size of deleted files and number of deleted files
-	 */
-	public static function deleteExpiredFiles($files, $user) {
-		/** @var Expiration $expiration */
-		$expiration = \OC::$server->query(Expiration::class);
-		$size = 0;
-		$count = 0;
-		foreach ($files as $file) {
-			$timestamp = $file['mtime'];
-			$filename = $file['name'];
-			if ($expiration->isExpired($timestamp)) {
-				try {
-					$size += self::delete($filename, $user, $timestamp);
-					$count++;
-				} catch (\OCP\Files\NotPermittedException $e) {
-					\OC::$server->getLogger()->logException($e, ['app' => 'files_trashbin', 'level' => \OCP\ILogger::WARN, 'message' => 'Removing "' . $filename . '" from trashbin failed.']);
-				}
-				\OC::$server->getLogger()->info(
-					'Remove "' . $filename . '" from trashbin because it exceeds max retention obligation term.',
-					['app' => 'files_trashbin']
-				);
-			} else {
-				break;
-			}
-		}
-
-		return [$size, $count];
-	}
-
-	/**
-	 * recursive copy to copy a whole directory
-	 *
-	 * @param string $source source path, relative to the users files directory
-	 * @param string $destination destination path relative to the users root directoy
-	 * @param View $view file view for the users root directory
-	 * @return int
-	 * @throws Exceptions\CopyRecursiveException
-	 */
-	private static function copy_recursive($source, $destination, View $view) {
-		$size = 0;
-		if ($view->is_dir($source)) {
-			$view->mkdir($destination);
-			$view->touch($destination, $view->filemtime($source));
-			foreach ($view->getDirectoryContent($source) as $i) {
-				$pathDir = $source . '/' . $i['name'];
-				if ($view->is_dir($pathDir)) {
-					$size += self::copy_recursive($pathDir, $destination . '/' . $i['name'], $view);
-				} else {
-					$size += $view->filesize($pathDir);
-					$result = $view->copy($pathDir, $destination . '/' . $i['name']);
-					if (!$result) {
-						throw new \OCA\Files_Trashbin\Exceptions\CopyRecursiveException();
-					}
-					$view->touch($destination . '/' . $i['name'], $view->filemtime($pathDir));
-				}
-			}
-		} else {
-			$size += $view->filesize($source);
-			$result = $view->copy($source, $destination);
-			if (!$result) {
-				throw new \OCA\Files_Trashbin\Exceptions\CopyRecursiveException();
-			}
-			$view->touch($destination, $view->filemtime($source));
-		}
-		return $size;
-	}
-
-	/**
-	 * find all versions which belong to the file we want to restore
-	 *
-	 * @param string $filename name of the file which should be restored
-	 * @param int $timestamp timestamp when the file was deleted
-	 * @return array
-	 */
-	private static function getVersionsFromTrash($filename, $timestamp, $user) {
-		$view = new View('/' . $user . '/files_trashbin/versions');
-		$versions = [];
-
-		//force rescan of versions, local storage may not have updated the cache
-		if (!self::$scannedVersions) {
-			/** @var \OC\Files\Storage\Storage $storage */
-			list($storage,) = $view->resolvePath('/');
-			$storage->getScanner()->scan('files_trashbin/versions');
-			self::$scannedVersions = true;
-		}
-
-		if ($timestamp) {
-			// fetch for old versions
-			$matches = $view->searchRaw($filename . '.v%.d' . $timestamp);
-			$offset = -strlen($timestamp) - 2;
-		} else {
-			$matches = $view->searchRaw($filename . '.v%');
-		}
-
-		if (is_array($matches)) {
-			foreach ($matches as $ma) {
-				if ($timestamp) {
-					$parts = explode('.v', substr($ma['path'], 0, $offset));
-					$versions[] = end($parts);
-				} else {
-					$parts = explode('.v', $ma);
-					$versions[] = end($parts);
-				}
-			}
-		}
-		return $versions;
-	}
-
-	/**
-	 * find unique extension for restored file if a file with the same name already exists
-	 *
-	 * @param string $location where the file should be restored
-	 * @param string $filename name of the file
-	 * @param View $view filesystem view relative to users root directory
-	 * @return string with unique extension
-	 */
-	private static function getUniqueFilename($location, $filename, View $view) {
-		$ext = pathinfo($filename, PATHINFO_EXTENSION);
-		$name = pathinfo($filename, PATHINFO_FILENAME);
-		$l = \OC::$server->getL10N('files_trashbin');
-
-		$location = '/' . trim($location, '/');
-
-		// if extension is not empty we set a dot in front of it
-		if ($ext !== '') {
-			$ext = '.' . $ext;
-		}
-
-		if ($view->file_exists('files' . $location . '/' . $filename)) {
-			$i = 2;
-			$uniqueName = $name . " (" . $l->t("restored") . ")" . $ext;
-			while ($view->file_exists('files' . $location . '/' . $uniqueName)) {
-				$uniqueName = $name . " (" . $l->t("restored") . " " . $i . ")" . $ext;
-				$i++;
-			}
-
-			return $uniqueName;
-		}
-
-		return $filename;
-	}
-
-	/**
-	 * get the size from a given root folder
-	 *
-	 * @param View $view file view on the root folder
-	 * @return integer size of the folder
-	 */
-	private static function calculateSize($view) {
-		$root = \OC::$server->getConfig()->getSystemValue('datadirectory', \OC::$SERVERROOT . '/data') . $view->getAbsolutePath('');
-		if (!file_exists($root)) {
-			return 0;
-		}
-		$iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($root), \RecursiveIteratorIterator::CHILD_FIRST);
-		$size = 0;
-
-		/**
-		 * RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
-		 * This bug is fixed in PHP 5.5.9 or before
-		 * See #8376
-		 */
-		$iterator->rewind();
-		while ($iterator->valid()) {
-			$path = $iterator->current();
-			$relpath = substr($path, strlen($root) - 1);
-			if (!$view->is_dir($relpath)) {
-				$size += $view->filesize($relpath);
-			}
-			$iterator->next();
-		}
-		return $size;
-	}
-
-	/**
-	 * get current size of trash bin from a given user
-	 *
-	 * @param string $user user who owns the trash bin
-	 * @return integer trash bin size
-	 */
-	private static function getTrashbinSize($user) {
-		$view = new View('/' . $user);
-		$fileInfo = $view->getFileInfo('/files_trashbin');
-		return isset($fileInfo['size']) ? $fileInfo['size'] : 0;
-	}
-
-	/**
-	 * register hooks
-	 */
-	public static function registerHooks() {
-		// create storage wrapper on setup
-		\OCP\Util::connectHook('OC_Filesystem', 'preSetup', 'OCA\Files_Trashbin\Storage', 'setupStorage');
-		//Listen to delete user signal
-		\OCP\Util::connectHook('OC_User', 'pre_deleteUser', 'OCA\Files_Trashbin\Hooks', 'deleteUser_hook');
-		//Listen to post write hook
-		\OCP\Util::connectHook('OC_Filesystem', 'post_write', 'OCA\Files_Trashbin\Hooks', 'post_write_hook');
-		// pre and post-rename, disable trash logic for the copy+unlink case
-		\OCP\Util::connectHook('OC_Filesystem', 'delete', 'OCA\Files_Trashbin\Trashbin', 'ensureFileScannedHook');
-	}
-
-	/**
-	 * check if trash bin is empty for a given user
-	 *
-	 * @param string $user
-	 * @return bool
-	 */
-	public static function isEmpty($user) {
-
-		$view = new View('/' . $user . '/files_trashbin');
-		if ($view->is_dir('/files') && $dh = $view->opendir('/files')) {
-			while ($file = readdir($dh)) {
-				if (!Filesystem::isIgnoredDir($file)) {
-					return false;
-				}
-			}
-		}
-		return true;
-	}
-
-	/**
-	 * @param $path
-	 * @return string
-	 */
-	public static function preview_icon($path) {
-		return \OC::$server->getURLGenerator()->linkToRoute('core_ajax_trashbin_preview', ['x' => 32, 'y' => 32, 'file' => $path]);
-	}
+    // unit: percentage; 50% of available disk space/quota
+    const DEFAULTMAXSIZE = 50;
+
+    /**
+     * Whether versions have already be rescanned during this PHP request
+     *
+     * @var bool
+     */
+    private static $scannedVersions = false;
+
+    /**
+     * Ensure we don't need to scan the file during the move to trash
+     * by triggering the scan in the pre-hook
+     *
+     * @param array $params
+     */
+    public static function ensureFileScannedHook($params) {
+        try {
+            self::getUidAndFilename($params['path']);
+        } catch (NotFoundException $e) {
+            // nothing to scan for non existing files
+        }
+    }
+
+    /**
+     * get the UID of the owner of the file and the path to the file relative to
+     * owners files folder
+     *
+     * @param string $filename
+     * @return array
+     * @throws \OC\User\NoUserException
+     */
+    public static function getUidAndFilename($filename) {
+        $uid = Filesystem::getOwner($filename);
+        $userManager = \OC::$server->getUserManager();
+        // if the user with the UID doesn't exists, e.g. because the UID points
+        // to a remote user with a federated cloud ID we use the current logged-in
+        // user. We need a valid local user to move the file to the right trash bin
+        if (!$userManager->userExists($uid)) {
+            $uid = User::getUser();
+        }
+        if (!$uid) {
+            // no owner, usually because of share link from ext storage
+            return [null, null];
+        }
+        Filesystem::initMountPoints($uid);
+        if ($uid !== User::getUser()) {
+            $info = Filesystem::getFileInfo($filename);
+            $ownerView = new View('/' . $uid . '/files');
+            try {
+                $filename = $ownerView->getPath($info['fileid']);
+            } catch (NotFoundException $e) {
+                $filename = null;
+            }
+        }
+        return [$uid, $filename];
+    }
+
+    /**
+     * get original location of files for user
+     *
+     * @param string $user
+     * @return array (filename => array (timestamp => original location))
+     */
+    public static function getLocations($user) {
+        $query = \OC_DB::prepare('SELECT `id`, `timestamp`, `location`'
+            . ' FROM `*PREFIX*files_trash` WHERE `user`=?');
+        $result = $query->execute([$user]);
+        $array = [];
+        while ($row = $result->fetchRow()) {
+            if (isset($array[$row['id']])) {
+                $array[$row['id']][$row['timestamp']] = $row['location'];
+            } else {
+                $array[$row['id']] = [$row['timestamp'] => $row['location']];
+            }
+        }
+        return $array;
+    }
+
+    /**
+     * get original location of file
+     *
+     * @param string $user
+     * @param string $filename
+     * @param string $timestamp
+     * @return string original location
+     */
+    public static function getLocation($user, $filename, $timestamp) {
+        $query = \OC_DB::prepare('SELECT `location` FROM `*PREFIX*files_trash`'
+            . ' WHERE `user`=? AND `id`=? AND `timestamp`=?');
+        $result = $query->execute([$user, $filename, $timestamp])->fetchAll();
+        if (isset($result[0]['location'])) {
+            return $result[0]['location'];
+        } else {
+            return false;
+        }
+    }
+
+    private static function setUpTrash($user) {
+        $view = new View('/' . $user);
+        if (!$view->is_dir('files_trashbin')) {
+            $view->mkdir('files_trashbin');
+        }
+        if (!$view->is_dir('files_trashbin/files')) {
+            $view->mkdir('files_trashbin/files');
+        }
+        if (!$view->is_dir('files_trashbin/versions')) {
+            $view->mkdir('files_trashbin/versions');
+        }
+        if (!$view->is_dir('files_trashbin/keys')) {
+            $view->mkdir('files_trashbin/keys');
+        }
+    }
+
+
+    /**
+     * copy file to owners trash
+     *
+     * @param string $sourcePath
+     * @param string $owner
+     * @param string $targetPath
+     * @param $user
+     * @param integer $timestamp
+     */
+    private static function copyFilesToUser($sourcePath, $owner, $targetPath, $user, $timestamp) {
+        self::setUpTrash($owner);
+
+        $targetFilename = basename($targetPath);
+        $targetLocation = dirname($targetPath);
+
+        $sourceFilename = basename($sourcePath);
+
+        $view = new View('/');
+
+        $target = $user . '/files_trashbin/files/' . $targetFilename . '.d' . $timestamp;
+        $source = $owner . '/files_trashbin/files/' . $sourceFilename . '.d' . $timestamp;
+        $free = $view->free_space($target);
+        $isUnknownOrUnlimitedFreeSpace = $free < 0;
+        $isEnoughFreeSpaceLeft = $view->filesize($source) < $free;
+        if ($isUnknownOrUnlimitedFreeSpace || $isEnoughFreeSpaceLeft) {
+            self::copy_recursive($source, $target, $view);
+        }
+
+
+        if ($view->file_exists($target)) {
+            $query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`user`) VALUES (?,?,?,?)");
+            $result = $query->execute([$targetFilename, $timestamp, $targetLocation, $user]);
+            if (!$result) {
+                \OC::$server->getLogger()->error('trash bin database couldn\'t be updated for the files owner', ['app' => 'files_trashbin']);
+            }
+        }
+    }
+
+
+    /**
+     * move file to the trash bin
+     *
+     * @param string $file_path path to the deleted file/directory relative to the files root directory
+     * @param bool $ownerOnly delete for owner only (if file gets moved out of a shared folder)
+     *
+     * @return bool
+     */
+    public static function move2trash($file_path, $ownerOnly = false) {
+        // get the user for which the filesystem is setup
+        $root = Filesystem::getRoot();
+        list(, $user) = explode('/', $root);
+        list($owner, $ownerPath) = self::getUidAndFilename($file_path);
+
+        // if no owner found (ex: ext storage + share link), will use the current user's trashbin then
+        if (is_null($owner)) {
+            $owner = $user;
+            $ownerPath = $file_path;
+        }
+
+        $ownerView = new View('/' . $owner);
+        // file has been deleted in between
+        if (is_null($ownerPath) || $ownerPath === '' || !$ownerView->file_exists('/files/' . $ownerPath)) {
+            return true;
+        }
+
+        self::setUpTrash($user);
+        if ($owner !== $user) {
+            // also setup for owner
+            self::setUpTrash($owner);
+        }
+
+        $path_parts = pathinfo($ownerPath);
+
+        $filename = $path_parts['basename'];
+        $location = $path_parts['dirname'];
+        $timestamp = time();
+
+        // disable proxy to prevent recursive calls
+        $trashPath = '/files_trashbin/files/' . $filename . '.d' . $timestamp;
+
+        /** @var \OC\Files\Storage\Storage $trashStorage */
+        list($trashStorage, $trashInternalPath) = $ownerView->resolvePath($trashPath);
+        /** @var \OC\Files\Storage\Storage $sourceStorage */
+        list($sourceStorage, $sourceInternalPath) = $ownerView->resolvePath('/files/' . $ownerPath);
+        try {
+            $moveSuccessful = true;
+            if ($trashStorage->file_exists($trashInternalPath)) {
+                $trashStorage->unlink($trashInternalPath);
+            }
+            $trashStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $trashInternalPath);
+        } catch (\OCA\Files_Trashbin\Exceptions\CopyRecursiveException $e) {
+            $moveSuccessful = false;
+            if ($trashStorage->file_exists($trashInternalPath)) {
+                $trashStorage->unlink($trashInternalPath);
+            }
+            \OC::$server->getLogger()->error('Couldn\'t move ' . $file_path . ' to the trash bin', ['app' => 'files_trashbin']);
+        }
+
+        if ($sourceStorage->file_exists($sourceInternalPath)) { // failed to delete the original file, abort
+            if ($sourceStorage->is_dir($sourceInternalPath)) {
+                $sourceStorage->rmdir($sourceInternalPath);
+            } else {
+                $sourceStorage->unlink($sourceInternalPath);
+            }
+            return false;
+        }
+
+        $trashStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $trashInternalPath);
+
+        if ($moveSuccessful) {
+            $query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`user`) VALUES (?,?,?,?)");
+            $result = $query->execute([$filename, $timestamp, $location, $owner]);
+            if (!$result) {
+                \OC::$server->getLogger()->error('trash bin database couldn\'t be updated', ['app' => 'files_trashbin']);
+            }
+            \OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_moveToTrash', ['filePath' => Filesystem::normalizePath($file_path),
+                'trashPath' => Filesystem::normalizePath($filename . '.d' . $timestamp)]);
+
+            self::retainVersions($filename, $owner, $ownerPath, $timestamp);
+
+            // if owner !== user we need to also add a copy to the users trash
+            if ($user !== $owner && $ownerOnly === false) {
+                self::copyFilesToUser($ownerPath, $owner, $file_path, $user, $timestamp);
+            }
+        }
+
+        self::scheduleExpire($user);
+
+        // if owner !== user we also need to update the owners trash size
+        if ($owner !== $user) {
+            self::scheduleExpire($owner);
+        }
+
+        return $moveSuccessful;
+    }
+
+    /**
+     * Move file versions to trash so that they can be restored later
+     *
+     * @param string $filename of deleted file
+     * @param string $owner owner user id
+     * @param string $ownerPath path relative to the owner's home storage
+     * @param integer $timestamp when the file was deleted
+     */
+    private static function retainVersions($filename, $owner, $ownerPath, $timestamp) {
+        if (\OCP\App::isEnabled('files_versions') && !empty($ownerPath)) {
+
+            $user = User::getUser();
+            $rootView = new View('/');
+
+            if ($rootView->is_dir($owner . '/files_versions/' . $ownerPath)) {
+                if ($owner !== $user) {
+                    self::copy_recursive($owner . '/files_versions/' . $ownerPath, $owner . '/files_trashbin/versions/' . basename($ownerPath) . '.d' . $timestamp, $rootView);
+                }
+                self::move($rootView, $owner . '/files_versions/' . $ownerPath, $user . '/files_trashbin/versions/' . $filename . '.d' . $timestamp);
+            } else if ($versions = \OCA\Files_Versions\Storage::getVersions($owner, $ownerPath)) {
+
+                foreach ($versions as $v) {
+                    if ($owner !== $user) {
+                        self::copy($rootView, $owner . '/files_versions' . $v['path'] . '.v' . $v['version'], $owner . '/files_trashbin/versions/' . $v['name'] . '.v' . $v['version'] . '.d' . $timestamp);
+                    }
+                    self::move($rootView, $owner . '/files_versions' . $v['path'] . '.v' . $v['version'], $user . '/files_trashbin/versions/' . $filename . '.v' . $v['version'] . '.d' . $timestamp);
+                }
+            }
+        }
+    }
+
+    /**
+     * Move a file or folder on storage level
+     *
+     * @param View $view
+     * @param string $source
+     * @param string $target
+     * @return bool
+     */
+    private static function move(View $view, $source, $target) {
+        /** @var \OC\Files\Storage\Storage $sourceStorage */
+        list($sourceStorage, $sourceInternalPath) = $view->resolvePath($source);
+        /** @var \OC\Files\Storage\Storage $targetStorage */
+        list($targetStorage, $targetInternalPath) = $view->resolvePath($target);
+        /** @var \OC\Files\Storage\Storage $ownerTrashStorage */
+
+        $result = $targetStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+        if ($result) {
+            $targetStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+        }
+        return $result;
+    }
+
+    /**
+     * Copy a file or folder on storage level
+     *
+     * @param View $view
+     * @param string $source
+     * @param string $target
+     * @return bool
+     */
+    private static function copy(View $view, $source, $target) {
+        /** @var \OC\Files\Storage\Storage $sourceStorage */
+        list($sourceStorage, $sourceInternalPath) = $view->resolvePath($source);
+        /** @var \OC\Files\Storage\Storage $targetStorage */
+        list($targetStorage, $targetInternalPath) = $view->resolvePath($target);
+        /** @var \OC\Files\Storage\Storage $ownerTrashStorage */
+
+        $result = $targetStorage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+        if ($result) {
+            $targetStorage->getUpdater()->update($targetInternalPath);
+        }
+        return $result;
+    }
+
+    /**
+     * Restore a file or folder from trash bin
+     *
+     * @param string $file path to the deleted file/folder relative to "files_trashbin/files/",
+     * including the timestamp suffix ".d12345678"
+     * @param string $filename name of the file/folder
+     * @param int $timestamp time when the file/folder was deleted
+     *
+     * @return bool true on success, false otherwise
+     */
+    public static function restore($file, $filename, $timestamp) {
+        $user = User::getUser();
+        $view = new View('/' . $user);
+
+        $location = '';
+        if ($timestamp) {
+            $location = self::getLocation($user, $filename, $timestamp);
+            if ($location === false) {
+                \OC::$server->getLogger()->error('trash bin database inconsistent! ($user: ' . $user . ' $filename: ' . $filename . ', $timestamp: ' . $timestamp . ')', ['app' => 'files_trashbin']);
+            } else {
+                // if location no longer exists, restore file in the root directory
+                if ($location !== '/' &&
+                    (!$view->is_dir('files/' . $location) ||
+                        !$view->isCreatable('files/' . $location))
+                ) {
+                    $location = '';
+                }
+            }
+        }
+
+        // we need a  extension in case a file/dir with the same name already exists
+        $uniqueFilename = self::getUniqueFilename($location, $filename, $view);
+
+        $source = Filesystem::normalizePath('files_trashbin/files/' . $file);
+        $target = Filesystem::normalizePath('files/' . $location . '/' . $uniqueFilename);
+        if (!$view->file_exists($source)) {
+            return false;
+        }
+        $mtime = $view->filemtime($source);
+
+        // restore file
+        if (!$view->isCreatable(dirname($target))) {
+            throw new NotPermittedException("Can't restore trash item because the target folder is not writable");
+        }
+        $restoreResult = $view->rename($source, $target);
+
+        // handle the restore result
+        if ($restoreResult) {
+            $fakeRoot = $view->getRoot();
+            $view->chroot('/' . $user . '/files');
+            $view->touch('/' . $location . '/' . $uniqueFilename, $mtime);
+            $view->chroot($fakeRoot);
+            \OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_restore', ['filePath' => Filesystem::normalizePath('/' . $location . '/' . $uniqueFilename),
+                'trashPath' => Filesystem::normalizePath($file)]);
+
+            self::restoreVersions($view, $file, $filename, $uniqueFilename, $location, $timestamp);
+
+            if ($timestamp) {
+                $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=? AND `id`=? AND `timestamp`=?');
+                $query->execute([$user, $filename, $timestamp]);
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * restore versions from trash bin
+     *
+     * @param View $view file view
+     * @param string $file complete path to file
+     * @param string $filename name of file once it was deleted
+     * @param string $uniqueFilename new file name to restore the file without overwriting existing files
+     * @param string $location location if file
+     * @param int $timestamp deletion time
+     * @return false|null
+     */
+    private static function restoreVersions(View $view, $file, $filename, $uniqueFilename, $location, $timestamp) {
+
+        if (\OCP\App::isEnabled('files_versions')) {
+
+            $user = User::getUser();
+            $rootView = new View('/');
+
+            $target = Filesystem::normalizePath('/' . $location . '/' . $uniqueFilename);
+
+            list($owner, $ownerPath) = self::getUidAndFilename($target);
+
+            // file has been deleted in between
+            if (empty($ownerPath)) {
+                return false;
+            }
+
+            if ($timestamp) {
+                $versionedFile = $filename;
+            } else {
+                $versionedFile = $file;
+            }
+
+            if ($view->is_dir('/files_trashbin/versions/' . $file)) {
+                $rootView->rename(Filesystem::normalizePath($user . '/files_trashbin/versions/' . $file), Filesystem::normalizePath($owner . '/files_versions/' . $ownerPath));
+            } else if ($versions = self::getVersionsFromTrash($versionedFile, $timestamp, $user)) {
+                foreach ($versions as $v) {
+                    if ($timestamp) {
+                        $rootView->rename($user . '/files_trashbin/versions/' . $versionedFile . '.v' . $v . '.d' . $timestamp, $owner . '/files_versions/' . $ownerPath . '.v' . $v);
+                    } else {
+                        $rootView->rename($user . '/files_trashbin/versions/' . $versionedFile . '.v' . $v, $owner . '/files_versions/' . $ownerPath . '.v' . $v);
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * delete all files from the trash
+     */
+    public static function deleteAll() {
+        $user = User::getUser();
+        $userRoot = \OC::$server->getUserFolder($user)->getParent();
+        $view = new View('/' . $user);
+        $fileInfos = $view->getDirectoryContent('files_trashbin/files');
+
+        try {
+            $trash = $userRoot->get('files_trashbin');
+        } catch (NotFoundException $e) {
+            return false;
+        }
+
+        // Array to store the relative path in (after the file is deleted, the view won't be able to relativise the path anymore)
+        $filePaths = [];
+        foreach($fileInfos as $fileInfo){
+            $filePaths[] = $view->getRelativePath($fileInfo->getPath());
+        }
+        unset($fileInfos); // save memory
+
+        // Bulk PreDelete-Hook
+        \OC_Hook::emit('\OCP\Trashbin', 'preDeleteAll', ['paths' => $filePaths]);
+
+        // Single-File Hooks
+        foreach($filePaths as $path){
+            self::emitTrashbinPreDelete($path);
+        }
+
+        // actual file deletion
+        $trash->delete();
+        $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=?');
+        $query->execute([$user]);
+
+        // Bulk PostDelete-Hook
+        \OC_Hook::emit('\OCP\Trashbin', 'deleteAll', ['paths' => $filePaths]);
+
+        // Single-File Hooks
+        foreach($filePaths as $path){
+            self::emitTrashbinPostDelete($path);
+        }
+
+        $trash = $userRoot->newFolder('files_trashbin');
+        $trash->newFolder('files');
+
+        return true;
+    }
+
+    /**
+     * wrapper function to emit the 'preDelete' hook of \OCP\Trashbin before a file is deleted
+     * @param string $path
+     */
+    protected static function emitTrashbinPreDelete($path) {
+        \OC_Hook::emit('\OCP\Trashbin', 'preDelete', ['path' => $path]);
+    }
+
+    /**
+     * wrapper function to emit the 'delete' hook of \OCP\Trashbin after a file has been deleted
+     * @param string $path
+     */
+    protected static function emitTrashbinPostDelete($path) {
+        \OC_Hook::emit('\OCP\Trashbin', 'delete', ['path' => $path]);
+    }
+
+    /**
+     * delete file from trash bin permanently
+     *
+     * @param string $filename path to the file
+     * @param string $user
+     * @param int $timestamp of deletion time
+     *
+     * @return int size of deleted files
+     */
+    public static function delete($filename, $user, $timestamp = null) {
+        $userRoot = \OC::$server->getUserFolder($user)->getParent();
+        $view = new View('/' . $user);
+        $size = 0;
+
+        if ($timestamp) {
+            $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=? AND `id`=? AND `timestamp`=?');
+            $query->execute([$user, $filename, $timestamp]);
+            $file = $filename . '.d' . $timestamp;
+        } else {
+            $file = $filename;
+        }
+
+        $size += self::deleteVersions($view, $file, $filename, $timestamp, $user);
+
+        try {
+            $node = $userRoot->get('/files_trashbin/files/' . $file);
+        } catch (NotFoundException $e) {
+            return $size;
+        }
+
+        if ($node instanceof Folder) {
+            $size += self::calculateSize(new View('/' . $user . '/files_trashbin/files/' . $file));
+        } else if ($node instanceof File) {
+            $size += $view->filesize('/files_trashbin/files/' . $file);
+        }
+
+        self::emitTrashbinPreDelete('/files_trashbin/files/' . $file);
+        $node->delete();
+        self::emitTrashbinPostDelete('/files_trashbin/files/' . $file);
+
+        return $size;
+    }
+
+    /**
+     * @param View $view
+     * @param string $file
+     * @param string $filename
+     * @param integer|null $timestamp
+     * @param string $user
+     * @return int
+     */
+    private static function deleteVersions(View $view, $file, $filename, $timestamp, $user) {
+        $size = 0;
+        if (\OCP\App::isEnabled('files_versions')) {
+            if ($view->is_dir('files_trashbin/versions/' . $file)) {
+                $size += self::calculateSize(new View('/' . $user . '/files_trashbin/versions/' . $file));
+                $view->unlink('files_trashbin/versions/' . $file);
+            } else if ($versions = self::getVersionsFromTrash($filename, $timestamp, $user)) {
+                foreach ($versions as $v) {
+                    if ($timestamp) {
+                        $size += $view->filesize('/files_trashbin/versions/' . $filename . '.v' . $v . '.d' . $timestamp);
+                        $view->unlink('/files_trashbin/versions/' . $filename . '.v' . $v . '.d' . $timestamp);
+                    } else {
+                        $size += $view->filesize('/files_trashbin/versions/' . $filename . '.v' . $v);
+                        $view->unlink('/files_trashbin/versions/' . $filename . '.v' . $v);
+                    }
+                }
+            }
+        }
+        return $size;
+    }
+
+    /**
+     * check to see whether a file exists in trashbin
+     *
+     * @param string $filename path to the file
+     * @param int $timestamp of deletion time
+     * @return bool true if file exists, otherwise false
+     */
+    public static function file_exists($filename, $timestamp = null) {
+        $user = User::getUser();
+        $view = new View('/' . $user);
+
+        if ($timestamp) {
+            $filename = $filename . '.d' . $timestamp;
+        }
+
+        $target = Filesystem::normalizePath('files_trashbin/files/' . $filename);
+        return $view->file_exists($target);
+    }
+
+    /**
+     * deletes used space for trash bin in db if user was deleted
+     *
+     * @param string $uid id of deleted user
+     * @return bool result of db delete operation
+     */
+    public static function deleteUser($uid) {
+        $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=?');
+        return $query->execute([$uid]);
+    }
+
+    /**
+     * calculate remaining free space for trash bin
+     *
+     * @param integer $trashbinSize current size of the trash bin
+     * @param string $user
+     * @return int available free space for trash bin
+     */
+    private static function calculateFreeSpace($trashbinSize, $user) {
+        $softQuota = true;
+        $userObject = \OC::$server->getUserManager()->get($user);
+        if(is_null($userObject)) {
+            return 0;
+        }
+        $quota = $userObject->getQuota();
+        if ($quota === null || $quota === 'none') {
+            $quota = Filesystem::free_space('/');
+            $softQuota = false;
+            // inf or unknown free space
+            if ($quota < 0) {
+                $quota = PHP_INT_MAX;
+            }
+        } else {
+            $quota = \OCP\Util::computerFileSize($quota);
+        }
+
+        // calculate available space for trash bin
+        // subtract size of files and current trash bin size from quota
+        if ($softQuota) {
+            $userFolder = \OC::$server->getUserFolder($user);
+            if(is_null($userFolder)) {
+                return 0;
+            }
+            $free = $quota - $userFolder->getSize(false); // remaining free space for user
+            if ($free > 0) {
+                $availableSpace = ($free * self::DEFAULTMAXSIZE / 100) - $trashbinSize; // how much space can be used for versions
+            } else {
+                $availableSpace = $free - $trashbinSize;
+            }
+        } else {
+            $availableSpace = $quota;
+        }
+
+        return $availableSpace;
+    }
+
+    /**
+     * resize trash bin if necessary after a new file was added to Nextcloud
+     *
+     * @param string $user user id
+     */
+    public static function resizeTrash($user) {
+
+        $size = self::getTrashbinSize($user);
+
+        $freeSpace = self::calculateFreeSpace($size, $user);
+
+        if ($freeSpace < 0) {
+            self::scheduleExpire($user);
+        }
+    }
+
+    /**
+     * clean up the trash bin
+     *
+     * @param string $user
+     */
+    public static function expire($user) {
+        $trashBinSize = self::getTrashbinSize($user);
+        $availableSpace = self::calculateFreeSpace($trashBinSize, $user);
+
+        $dirContent = Helper::getTrashFiles('/', $user, 'mtime');
+
+        // delete all files older then $retention_obligation
+        list($delSize, $count) = self::deleteExpiredFiles($dirContent, $user);
+
+        $availableSpace += $delSize;
+
+        // delete files from trash until we meet the trash bin size limit again
+        self::deleteFiles(array_slice($dirContent, $count), $user, $availableSpace);
+    }
+
+    /**
+     * @param string $user
+     */
+    private static function scheduleExpire($user) {
+        // let the admin disable auto expire
+        /** @var Application $application */
+        $application = \OC::$server->query(Application::class);
+        $expiration = $application->getContainer()->query('Expiration');
+        if ($expiration->isEnabled()) {
+            \OC::$server->getCommandBus()->push(new Expire($user));
+        }
+    }
+
+    /**
+     * if the size limit for the trash bin is reached, we delete the oldest
+     * files in the trash bin until we meet the limit again
+     *
+     * @param array $files
+     * @param string $user
+     * @param int $availableSpace available disc space
+     * @return int size of deleted files
+     */
+    protected static function deleteFiles($files, $user, $availableSpace) {
+        /** @var Application $application */
+        $application = \OC::$server->query(Application::class);
+        $expiration = $application->getContainer()->query('Expiration');
+        $size = 0;
+
+        if ($availableSpace < 0) {
+            foreach ($files as $file) {
+                if ($availableSpace < 0 && $expiration->isExpired($file['mtime'], true)) {
+                    $tmp = self::delete($file['name'], $user, $file['mtime']);
+                    \OC::$server->getLogger()->info('remove "' . $file['name'] . '" (' . $tmp . 'B) to meet the limit of trash bin size (50% of available quota)', ['app' => 'files_trashbin']);
+                    $availableSpace += $tmp;
+                    $size += $tmp;
+                } else {
+                    break;
+                }
+            }
+        }
+        return $size;
+    }
+
+    /**
+     * delete files older then max storage time
+     *
+     * @param array $files list of files sorted by mtime
+     * @param string $user
+     * @return integer[] size of deleted files and number of deleted files
+     */
+    public static function deleteExpiredFiles($files, $user) {
+        /** @var Expiration $expiration */
+        $expiration = \OC::$server->query(Expiration::class);
+        $size = 0;
+        $count = 0;
+        foreach ($files as $file) {
+            $timestamp = $file['mtime'];
+            $filename = $file['name'];
+            if ($expiration->isExpired($timestamp)) {
+                try {
+                    $size += self::delete($filename, $user, $timestamp);
+                    $count++;
+                } catch (\OCP\Files\NotPermittedException $e) {
+                    \OC::$server->getLogger()->logException($e, ['app' => 'files_trashbin', 'level' => \OCP\ILogger::WARN, 'message' => 'Removing "' . $filename . '" from trashbin failed.']);
+                }
+                \OC::$server->getLogger()->info(
+                    'Remove "' . $filename . '" from trashbin because it exceeds max retention obligation term.',
+                    ['app' => 'files_trashbin']
+                );
+            } else {
+                break;
+            }
+        }
+
+        return [$size, $count];
+    }
+
+    /**
+     * recursive copy to copy a whole directory
+     *
+     * @param string $source source path, relative to the users files directory
+     * @param string $destination destination path relative to the users root directoy
+     * @param View $view file view for the users root directory
+     * @return int
+     * @throws Exceptions\CopyRecursiveException
+     */
+    private static function copy_recursive($source, $destination, View $view) {
+        $size = 0;
+        if ($view->is_dir($source)) {
+            $view->mkdir($destination);
+            $view->touch($destination, $view->filemtime($source));
+            foreach ($view->getDirectoryContent($source) as $i) {
+                $pathDir = $source . '/' . $i['name'];
+                if ($view->is_dir($pathDir)) {
+                    $size += self::copy_recursive($pathDir, $destination . '/' . $i['name'], $view);
+                } else {
+                    $size += $view->filesize($pathDir);
+                    $result = $view->copy($pathDir, $destination . '/' . $i['name']);
+                    if (!$result) {
+                        throw new \OCA\Files_Trashbin\Exceptions\CopyRecursiveException();
+                    }
+                    $view->touch($destination . '/' . $i['name'], $view->filemtime($pathDir));
+                }
+            }
+        } else {
+            $size += $view->filesize($source);
+            $result = $view->copy($source, $destination);
+            if (!$result) {
+                throw new \OCA\Files_Trashbin\Exceptions\CopyRecursiveException();
+            }
+            $view->touch($destination, $view->filemtime($source));
+        }
+        return $size;
+    }
+
+    /**
+     * find all versions which belong to the file we want to restore
+     *
+     * @param string $filename name of the file which should be restored
+     * @param int $timestamp timestamp when the file was deleted
+     * @return array
+     */
+    private static function getVersionsFromTrash($filename, $timestamp, $user) {
+        $view = new View('/' . $user . '/files_trashbin/versions');
+        $versions = [];
+
+        //force rescan of versions, local storage may not have updated the cache
+        if (!self::$scannedVersions) {
+            /** @var \OC\Files\Storage\Storage $storage */
+            list($storage,) = $view->resolvePath('/');
+            $storage->getScanner()->scan('files_trashbin/versions');
+            self::$scannedVersions = true;
+        }
+
+        if ($timestamp) {
+            // fetch for old versions
+            $matches = $view->searchRaw($filename . '.v%.d' . $timestamp);
+            $offset = -strlen($timestamp) - 2;
+        } else {
+            $matches = $view->searchRaw($filename . '.v%');
+        }
+
+        if (is_array($matches)) {
+            foreach ($matches as $ma) {
+                if ($timestamp) {
+                    $parts = explode('.v', substr($ma['path'], 0, $offset));
+                    $versions[] = end($parts);
+                } else {
+                    $parts = explode('.v', $ma);
+                    $versions[] = end($parts);
+                }
+            }
+        }
+        return $versions;
+    }
+
+    /**
+     * find unique extension for restored file if a file with the same name already exists
+     *
+     * @param string $location where the file should be restored
+     * @param string $filename name of the file
+     * @param View $view filesystem view relative to users root directory
+     * @return string with unique extension
+     */
+    private static function getUniqueFilename($location, $filename, View $view) {
+        $ext = pathinfo($filename, PATHINFO_EXTENSION);
+        $name = pathinfo($filename, PATHINFO_FILENAME);
+        $l = \OC::$server->getL10N('files_trashbin');
+
+        $location = '/' . trim($location, '/');
+
+        // if extension is not empty we set a dot in front of it
+        if ($ext !== '') {
+            $ext = '.' . $ext;
+        }
+
+        if ($view->file_exists('files' . $location . '/' . $filename)) {
+            $i = 2;
+            $uniqueName = $name . " (" . $l->t("restored") . ")" . $ext;
+            while ($view->file_exists('files' . $location . '/' . $uniqueName)) {
+                $uniqueName = $name . " (" . $l->t("restored") . " " . $i . ")" . $ext;
+                $i++;
+            }
+
+            return $uniqueName;
+        }
+
+        return $filename;
+    }
+
+    /**
+     * get the size from a given root folder
+     *
+     * @param View $view file view on the root folder
+     * @return integer size of the folder
+     */
+    private static function calculateSize($view) {
+        $root = \OC::$server->getConfig()->getSystemValue('datadirectory', \OC::$SERVERROOT . '/data') . $view->getAbsolutePath('');
+        if (!file_exists($root)) {
+            return 0;
+        }
+        $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($root), \RecursiveIteratorIterator::CHILD_FIRST);
+        $size = 0;
+
+        /**
+         * RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
+         * This bug is fixed in PHP 5.5.9 or before
+         * See #8376
+         */
+        $iterator->rewind();
+        while ($iterator->valid()) {
+            $path = $iterator->current();
+            $relpath = substr($path, strlen($root) - 1);
+            if (!$view->is_dir($relpath)) {
+                $size += $view->filesize($relpath);
+            }
+            $iterator->next();
+        }
+        return $size;
+    }
+
+    /**
+     * get current size of trash bin from a given user
+     *
+     * @param string $user user who owns the trash bin
+     * @return integer trash bin size
+     */
+    private static function getTrashbinSize($user) {
+        $view = new View('/' . $user);
+        $fileInfo = $view->getFileInfo('/files_trashbin');
+        return isset($fileInfo['size']) ? $fileInfo['size'] : 0;
+    }
+
+    /**
+     * register hooks
+     */
+    public static function registerHooks() {
+        // create storage wrapper on setup
+        \OCP\Util::connectHook('OC_Filesystem', 'preSetup', 'OCA\Files_Trashbin\Storage', 'setupStorage');
+        //Listen to delete user signal
+        \OCP\Util::connectHook('OC_User', 'pre_deleteUser', 'OCA\Files_Trashbin\Hooks', 'deleteUser_hook');
+        //Listen to post write hook
+        \OCP\Util::connectHook('OC_Filesystem', 'post_write', 'OCA\Files_Trashbin\Hooks', 'post_write_hook');
+        // pre and post-rename, disable trash logic for the copy+unlink case
+        \OCP\Util::connectHook('OC_Filesystem', 'delete', 'OCA\Files_Trashbin\Trashbin', 'ensureFileScannedHook');
+    }
+
+    /**
+     * check if trash bin is empty for a given user
+     *
+     * @param string $user
+     * @return bool
+     */
+    public static function isEmpty($user) {
+
+        $view = new View('/' . $user . '/files_trashbin');
+        if ($view->is_dir('/files') && $dh = $view->opendir('/files')) {
+            while ($file = readdir($dh)) {
+                if (!Filesystem::isIgnoredDir($file)) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * @param $path
+     * @return string
+     */
+    public static function preview_icon($path) {
+        return \OC::$server->getURLGenerator()->linkToRoute('core_ajax_trashbin_preview', ['x' => 32, 'y' => 32, 'file' => $path]);
+    }
 }

apps/files_trashbin/lib/AppInfo/Application.php

Indentation +47 added lines, -47 removed lines

@@ -36,64 +36,64 @@
 use OCP\AppFramework\IAppContainer;
 
 class Application extends App {
-	public function __construct(array $urlParams = []) {
-		parent::__construct('files_trashbin', $urlParams);
+    public function __construct(array $urlParams = []) {
+        parent::__construct('files_trashbin', $urlParams);
 
-		$container = $this->getContainer();
-		/*
+        $container = $this->getContainer();
+        /*
 		 * Register capabilities
 		 */
-		$container->registerCapability(Capabilities::class);
+        $container->registerCapability(Capabilities::class);
 
-		/*
+        /*
 		 * Register expiration
 		 */
-		$container->registerAlias('Expiration', Expiration::class);
+        $container->registerAlias('Expiration', Expiration::class);
 
-		/*
+        /*
 		 * Register $principalBackend for the DAV collection
 		 */
-		$container->registerService('principalBackend', function () {
-			return new Principal(
-				\OC::$server->getUserManager(),
-				\OC::$server->getGroupManager(),
-				\OC::$server->getShareManager(),
-				\OC::$server->getUserSession(),
-				\OC::$server->getAppManager(),
-				\OC::$server->query(ProxyMapper::class),
-				\OC::$server->getConfig()
-			);
-		});
+        $container->registerService('principalBackend', function () {
+            return new Principal(
+                \OC::$server->getUserManager(),
+                \OC::$server->getGroupManager(),
+                \OC::$server->getShareManager(),
+                \OC::$server->getUserSession(),
+                \OC::$server->getAppManager(),
+                \OC::$server->query(ProxyMapper::class),
+                \OC::$server->getConfig()
+            );
+        });
 
-		$container->registerService(ITrashManager::class, function (IAppContainer $c) {
-			return new TrashManager();
-		});
+        $container->registerService(ITrashManager::class, function (IAppContainer $c) {
+            return new TrashManager();
+        });
 
-		$this->registerTrashBackends();
-	}
+        $this->registerTrashBackends();
+    }
 
-	public function registerTrashBackends() {
-		$server = $this->getContainer()->getServer();
-		$logger = $server->getLogger();
-		$appManager = $server->getAppManager();
-		/** @var ITrashManager $trashManager */
-		$trashManager = $this->getContainer()->getServer()->query(ITrashManager::class);
-		foreach($appManager->getInstalledApps() as $app) {
-			$appInfo = $appManager->getAppInfo($app);
-			if (isset($appInfo['trash'])) {
-				$backends = $appInfo['trash'];
-				foreach($backends as $backend) {
-					$class = $backend['@value'];
-					$for = $backend['@attributes']['for'];
+    public function registerTrashBackends() {
+        $server = $this->getContainer()->getServer();
+        $logger = $server->getLogger();
+        $appManager = $server->getAppManager();
+        /** @var ITrashManager $trashManager */
+        $trashManager = $this->getContainer()->getServer()->query(ITrashManager::class);
+        foreach($appManager->getInstalledApps() as $app) {
+            $appInfo = $appManager->getAppInfo($app);
+            if (isset($appInfo['trash'])) {
+                $backends = $appInfo['trash'];
+                foreach($backends as $backend) {
+                    $class = $backend['@value'];
+                    $for = $backend['@attributes']['for'];
 
-					try {
-						$backendObject = $server->query($class);
-						$trashManager->registerBackend($for, $backendObject);
-					} catch (\Exception $e) {
-						$logger->logException($e);
-					}
-				}
-			}
-		}
-	}
+                    try {
+                        $backendObject = $server->query($class);
+                        $trashManager->registerBackend($for, $backendObject);
+                    } catch (\Exception $e) {
+                        $logger->logException($e);
+                    }
+                }
+            }
+        }
+    }
 }

apps/files_trashbin/lib/BackgroundJob/ExpireTrash.php

Indentation +63 added lines, -63 removed lines

@@ -36,77 +36,77 @@
 
 class ExpireTrash extends \OC\BackgroundJob\TimedJob {
 
-	/**
-	 * @var Expiration
-	 */
-	private $expiration;
+    /**
+     * @var Expiration
+     */
+    private $expiration;
 	
-	/**
-	 * @var IUserManager
-	 */
-	private $userManager;
+    /**
+     * @var IUserManager
+     */
+    private $userManager;
 
-	/**
-	 * @param IUserManager|null $userManager
-	 * @param Expiration|null $expiration
-	 */
-	public function __construct(IUserManager $userManager = null,
-								Expiration $expiration = null) {
-		// Run once per 30 minutes
-		$this->setInterval(60 * 30);
+    /**
+     * @param IUserManager|null $userManager
+     * @param Expiration|null $expiration
+     */
+    public function __construct(IUserManager $userManager = null,
+                                Expiration $expiration = null) {
+        // Run once per 30 minutes
+        $this->setInterval(60 * 30);
 
-		if (is_null($expiration) || is_null($userManager)) {
-			$this->fixDIForJobs();
-		} else {
-			$this->userManager = $userManager;
-			$this->expiration = $expiration;
-		}
-	}
+        if (is_null($expiration) || is_null($userManager)) {
+            $this->fixDIForJobs();
+        } else {
+            $this->userManager = $userManager;
+            $this->expiration = $expiration;
+        }
+    }
 
-	protected function fixDIForJobs() {
-		/** @var Application $application */
-		$application = \OC::$server->query(Application::class);
-		$this->userManager = \OC::$server->getUserManager();
-		$this->expiration = $application->getContainer()->query('Expiration');
-	}
+    protected function fixDIForJobs() {
+        /** @var Application $application */
+        $application = \OC::$server->query(Application::class);
+        $this->userManager = \OC::$server->getUserManager();
+        $this->expiration = $application->getContainer()->query('Expiration');
+    }
 
-	/**
-	 * @param $argument
-	 * @throws \Exception
-	 */
-	protected function run($argument) {
-		$maxAge = $this->expiration->getMaxAgeAsTimestamp();
-		if (!$maxAge) {
-			return;
-		}
+    /**
+     * @param $argument
+     * @throws \Exception
+     */
+    protected function run($argument) {
+        $maxAge = $this->expiration->getMaxAgeAsTimestamp();
+        if (!$maxAge) {
+            return;
+        }
 
-		$this->userManager->callForSeenUsers(function (IUser $user) {
-			$uid = $user->getUID();
-			if (!$this->setupFS($uid)) {
-				return;
-			}
-			$dirContent = Helper::getTrashFiles('/', $uid, 'mtime');
-			Trashbin::deleteExpiredFiles($dirContent, $uid);
-		});
+        $this->userManager->callForSeenUsers(function (IUser $user) {
+            $uid = $user->getUID();
+            if (!$this->setupFS($uid)) {
+                return;
+            }
+            $dirContent = Helper::getTrashFiles('/', $uid, 'mtime');
+            Trashbin::deleteExpiredFiles($dirContent, $uid);
+        });
 		
-		\OC_Util::tearDownFS();
-	}
+        \OC_Util::tearDownFS();
+    }
 
-	/**
-	 * Act on behalf on trash item owner
-	 * @param string $user
-	 * @return boolean
-	 */
-	protected function setupFS($user) {
-		\OC_Util::tearDownFS();
-		\OC_Util::setupFS($user);
+    /**
+     * Act on behalf on trash item owner
+     * @param string $user
+     * @return boolean
+     */
+    protected function setupFS($user) {
+        \OC_Util::tearDownFS();
+        \OC_Util::setupFS($user);
 
-		// Check if this user has a trashbin directory
-		$view = new \OC\Files\View('/' . $user);
-		if (!$view->is_dir('/files_trashbin/files')) {
-			return false;
-		}
+        // Check if this user has a trashbin directory
+        $view = new \OC\Files\View('/' . $user);
+        if (!$view->is_dir('/files_trashbin/files')) {
+            return false;
+        }
 
-		return true;
-	}
+        return true;
+    }
 }

apps/files_trashbin/lib/Expiration.php

Indentation +139 added lines, -139 removed lines

@@ -31,143 +31,143 @@
 
 class Expiration {
 
-	// how long do we keep files in the trash bin if no other value is defined in the config file (unit: days)
-	const DEFAULT_RETENTION_OBLIGATION = 30;
-	const NO_OBLIGATION = -1;
-
-	/** @var ITimeFactory */
-	private $timeFactory;
-
-	/** @var string */
-	private $retentionObligation;
-
-	/** @var int */
-	private $minAge;
-
-	/** @var int */
-	private $maxAge;
-
-	/** @var bool */
-	private $canPurgeToSaveSpace;
-
-	public function __construct(IConfig $config,ITimeFactory $timeFactory) {
-		$this->timeFactory = $timeFactory;
-		$this->setRetentionObligation($config->getSystemValue('trashbin_retention_obligation', 'auto'));
-	}
-
-	public function setRetentionObligation(string $obligation) {
-		$this->retentionObligation = $obligation;
-
-		if ($this->retentionObligation !== 'disabled') {
-			$this->parseRetentionObligation();
-		}
-	}
-
-	/**
-	 * Is trashbin expiration enabled
-	 * @return bool
-	 */
-	public function isEnabled() {
-		return $this->retentionObligation !== 'disabled';
-	}
-
-	/**
-	 * Check if given timestamp in expiration range
-	 * @param int $timestamp
-	 * @param bool $quotaExceeded
-	 * @return bool
-	 */
-	public function isExpired($timestamp, $quotaExceeded = false) {
-		// No expiration if disabled
-		if (!$this->isEnabled()) {
-			return false;
-		}
-
-		// Purge to save space (if allowed)
-		if ($quotaExceeded && $this->canPurgeToSaveSpace) {
-			return true;
-		}
-
-		$time = $this->timeFactory->getTime();
-		// Never expire dates in future e.g. misconfiguration or negative time
-		// adjustment
-		if ($time<$timestamp) {
-			return false;
-		}
-
-		// Purge as too old
-		if ($this->maxAge !== self::NO_OBLIGATION) {
-			$maxTimestamp = $time - ($this->maxAge * 86400);
-			$isOlderThanMax = $timestamp < $maxTimestamp;
-		} else {
-			$isOlderThanMax = false;
-		}
-
-		if ($this->minAge !== self::NO_OBLIGATION) {
-			// older than Min obligation and we are running out of quota?
-			$minTimestamp = $time - ($this->minAge * 86400);
-			$isMinReached = ($timestamp < $minTimestamp) && $quotaExceeded;
-		} else {
-			$isMinReached = false;
-		}
-
-		return $isOlderThanMax || $isMinReached;
-	}
-
-	/**
-	 * @return bool|int
-	 */
-	public function getMaxAgeAsTimestamp() {
-		$maxAge = false;
-		if ($this->isEnabled() && $this->maxAge !== self::NO_OBLIGATION) {
-			$time = $this->timeFactory->getTime();
-			$maxAge = $time - ($this->maxAge * 86400);
-		}
-		return $maxAge;
-	}
-
-	private function parseRetentionObligation() {
-		$splitValues = explode(',', $this->retentionObligation);
-		if (!isset($splitValues[0])) {
-			$minValue = self::DEFAULT_RETENTION_OBLIGATION;
-		} else {
-			$minValue = trim($splitValues[0]);
-		}
-
-		if (!isset($splitValues[1]) && $minValue === 'auto') {
-			$maxValue = 'auto';
-		} elseif (!isset($splitValues[1])) {
-			$maxValue = self::DEFAULT_RETENTION_OBLIGATION;
-		} else {
-			$maxValue = trim($splitValues[1]);
-		}
-
-		if ($minValue === 'auto' && $maxValue === 'auto') {
-			// Default: Keep for 30 days but delete anytime if space needed
-			$this->minAge = self::DEFAULT_RETENTION_OBLIGATION;
-			$this->maxAge = self::NO_OBLIGATION;
-			$this->canPurgeToSaveSpace = true;
-		} elseif ($minValue !== 'auto' && $maxValue === 'auto') {
-			// Keep for X days but delete anytime if space needed
-			$this->minAge = (int)$minValue;
-			$this->maxAge = self::NO_OBLIGATION;
-			$this->canPurgeToSaveSpace = true;
-		} elseif ($minValue === 'auto' && $maxValue !== 'auto') {
-			// Delete anytime if space needed, Delete all older than max automatically
-			$this->minAge = self::NO_OBLIGATION;
-			$this->maxAge = (int)$maxValue;
-			$this->canPurgeToSaveSpace = true;
-		} elseif ($minValue !== 'auto' && $maxValue !== 'auto') {
-			// Delete all older than max OR older than min if space needed
-
-			// Max < Min as per https://github.com/owncloud/core/issues/16300
-			if ($maxValue < $minValue) {
-				$maxValue = $minValue;
-			}
-
-			$this->minAge = (int)$minValue;
-			$this->maxAge = (int)$maxValue;
-			$this->canPurgeToSaveSpace = false;
-		}
-	}
+    // how long do we keep files in the trash bin if no other value is defined in the config file (unit: days)
+    const DEFAULT_RETENTION_OBLIGATION = 30;
+    const NO_OBLIGATION = -1;
+
+    /** @var ITimeFactory */
+    private $timeFactory;
+
+    /** @var string */
+    private $retentionObligation;
+
+    /** @var int */
+    private $minAge;
+
+    /** @var int */
+    private $maxAge;
+
+    /** @var bool */
+    private $canPurgeToSaveSpace;
+
+    public function __construct(IConfig $config,ITimeFactory $timeFactory) {
+        $this->timeFactory = $timeFactory;
+        $this->setRetentionObligation($config->getSystemValue('trashbin_retention_obligation', 'auto'));
+    }
+
+    public function setRetentionObligation(string $obligation) {
+        $this->retentionObligation = $obligation;
+
+        if ($this->retentionObligation !== 'disabled') {
+            $this->parseRetentionObligation();
+        }
+    }
+
+    /**
+     * Is trashbin expiration enabled
+     * @return bool
+     */
+    public function isEnabled() {
+        return $this->retentionObligation !== 'disabled';
+    }
+
+    /**
+     * Check if given timestamp in expiration range
+     * @param int $timestamp
+     * @param bool $quotaExceeded
+     * @return bool
+     */
+    public function isExpired($timestamp, $quotaExceeded = false) {
+        // No expiration if disabled
+        if (!$this->isEnabled()) {
+            return false;
+        }
+
+        // Purge to save space (if allowed)
+        if ($quotaExceeded && $this->canPurgeToSaveSpace) {
+            return true;
+        }
+
+        $time = $this->timeFactory->getTime();
+        // Never expire dates in future e.g. misconfiguration or negative time
+        // adjustment
+        if ($time<$timestamp) {
+            return false;
+        }
+
+        // Purge as too old
+        if ($this->maxAge !== self::NO_OBLIGATION) {
+            $maxTimestamp = $time - ($this->maxAge * 86400);
+            $isOlderThanMax = $timestamp < $maxTimestamp;
+        } else {
+            $isOlderThanMax = false;
+        }
+
+        if ($this->minAge !== self::NO_OBLIGATION) {
+            // older than Min obligation and we are running out of quota?
+            $minTimestamp = $time - ($this->minAge * 86400);
+            $isMinReached = ($timestamp < $minTimestamp) && $quotaExceeded;
+        } else {
+            $isMinReached = false;
+        }
+
+        return $isOlderThanMax || $isMinReached;
+    }
+
+    /**
+     * @return bool|int
+     */
+    public function getMaxAgeAsTimestamp() {
+        $maxAge = false;
+        if ($this->isEnabled() && $this->maxAge !== self::NO_OBLIGATION) {
+            $time = $this->timeFactory->getTime();
+            $maxAge = $time - ($this->maxAge * 86400);
+        }
+        return $maxAge;
+    }
+
+    private function parseRetentionObligation() {
+        $splitValues = explode(',', $this->retentionObligation);
+        if (!isset($splitValues[0])) {
+            $minValue = self::DEFAULT_RETENTION_OBLIGATION;
+        } else {
+            $minValue = trim($splitValues[0]);
+        }
+
+        if (!isset($splitValues[1]) && $minValue === 'auto') {
+            $maxValue = 'auto';
+        } elseif (!isset($splitValues[1])) {
+            $maxValue = self::DEFAULT_RETENTION_OBLIGATION;
+        } else {
+            $maxValue = trim($splitValues[1]);
+        }
+
+        if ($minValue === 'auto' && $maxValue === 'auto') {
+            // Default: Keep for 30 days but delete anytime if space needed
+            $this->minAge = self::DEFAULT_RETENTION_OBLIGATION;
+            $this->maxAge = self::NO_OBLIGATION;
+            $this->canPurgeToSaveSpace = true;
+        } elseif ($minValue !== 'auto' && $maxValue === 'auto') {
+            // Keep for X days but delete anytime if space needed
+            $this->minAge = (int)$minValue;
+            $this->maxAge = self::NO_OBLIGATION;
+            $this->canPurgeToSaveSpace = true;
+        } elseif ($minValue === 'auto' && $maxValue !== 'auto') {
+            // Delete anytime if space needed, Delete all older than max automatically
+            $this->minAge = self::NO_OBLIGATION;
+            $this->maxAge = (int)$maxValue;
+            $this->canPurgeToSaveSpace = true;
+        } elseif ($minValue !== 'auto' && $maxValue !== 'auto') {
+            // Delete all older than max OR older than min if space needed
+
+            // Max < Min as per https://github.com/owncloud/core/issues/16300
+            if ($maxValue < $minValue) {
+                $maxValue = $minValue;
+            }
+
+            $this->minAge = (int)$minValue;
+            $this->maxAge = (int)$maxValue;
+            $this->canPurgeToSaveSpace = false;
+        }
+    }
 }

apps/files_trashbin/lib/Command/ExpireTrash.php

Indentation +79 added lines, -79 removed lines

@@ -37,94 +37,94 @@
 
 class ExpireTrash extends Command {
 
-	/**
-	 * @var Expiration
-	 */
-	private $expiration;
+    /**
+     * @var Expiration
+     */
+    private $expiration;
 	
-	/**
-	 * @var IUserManager
-	 */
-	private $userManager;
+    /**
+     * @var IUserManager
+     */
+    private $userManager;
 
-	/**
-	 * @param IUserManager|null $userManager
-	 * @param Expiration|null $expiration
-	 */
-	public function __construct(IUserManager $userManager = null,
-								Expiration $expiration = null) {
-		parent::__construct();
+    /**
+     * @param IUserManager|null $userManager
+     * @param Expiration|null $expiration
+     */
+    public function __construct(IUserManager $userManager = null,
+                                Expiration $expiration = null) {
+        parent::__construct();
 
-		$this->userManager = $userManager;
-		$this->expiration = $expiration;
-	}
+        $this->userManager = $userManager;
+        $this->expiration = $expiration;
+    }
 
-	protected function configure() {
-		$this
-			->setName('trashbin:expire')
-			->setDescription('Expires the users trashbin')
-			->addArgument(
-				'user_id',
-				InputArgument::OPTIONAL | InputArgument::IS_ARRAY,
-				'expires the trashbin of the given user(s), if no user is given the trash for all users will be expired'
-			);
-	}
+    protected function configure() {
+        $this
+            ->setName('trashbin:expire')
+            ->setDescription('Expires the users trashbin')
+            ->addArgument(
+                'user_id',
+                InputArgument::OPTIONAL | InputArgument::IS_ARRAY,
+                'expires the trashbin of the given user(s), if no user is given the trash for all users will be expired'
+            );
+    }
 
-	protected function execute(InputInterface $input, OutputInterface $output) {
+    protected function execute(InputInterface $input, OutputInterface $output) {
 
-		$maxAge = $this->expiration->getMaxAgeAsTimestamp();
-		if (!$maxAge) {
-			$output->writeln("No expiry configured.");
-			return;
-		}
+        $maxAge = $this->expiration->getMaxAgeAsTimestamp();
+        if (!$maxAge) {
+            $output->writeln("No expiry configured.");
+            return;
+        }
 
-		$users = $input->getArgument('user_id');
-		if (!empty($users)) {
-			foreach ($users as $user) {
-				if ($this->userManager->userExists($user)) {
-					$output->writeln("Remove deleted files of   <info>$user</info>");
-					$userObject = $this->userManager->get($user);
-					$this->expireTrashForUser($userObject);
-				} else {
-					$output->writeln("<error>Unknown user $user</error>");
-				}
-			}
-		} else {
-			$p = new ProgressBar($output);
-			$p->start();
-			$this->userManager->callForSeenUsers(function (IUser $user) use ($p) {
-				$p->advance();
-				$this->expireTrashForUser($user);
-			});
-			$p->finish();
-			$output->writeln('');
-		}
-	}
+        $users = $input->getArgument('user_id');
+        if (!empty($users)) {
+            foreach ($users as $user) {
+                if ($this->userManager->userExists($user)) {
+                    $output->writeln("Remove deleted files of   <info>$user</info>");
+                    $userObject = $this->userManager->get($user);
+                    $this->expireTrashForUser($userObject);
+                } else {
+                    $output->writeln("<error>Unknown user $user</error>");
+                }
+            }
+        } else {
+            $p = new ProgressBar($output);
+            $p->start();
+            $this->userManager->callForSeenUsers(function (IUser $user) use ($p) {
+                $p->advance();
+                $this->expireTrashForUser($user);
+            });
+            $p->finish();
+            $output->writeln('');
+        }
+    }
 
-	function expireTrashForUser(IUser $user) {
-		$uid = $user->getUID();
-		if (!$this->setupFS($uid)) {
-			return;
-		}
-		$dirContent = Helper::getTrashFiles('/', $uid, 'mtime');
-		Trashbin::deleteExpiredFiles($dirContent, $uid);
-	}
+    function expireTrashForUser(IUser $user) {
+        $uid = $user->getUID();
+        if (!$this->setupFS($uid)) {
+            return;
+        }
+        $dirContent = Helper::getTrashFiles('/', $uid, 'mtime');
+        Trashbin::deleteExpiredFiles($dirContent, $uid);
+    }
 
-	/**
-	 * Act on behalf on trash item owner
-	 * @param string $user
-	 * @return boolean
-	 */
-	protected function setupFS($user) {
-		\OC_Util::tearDownFS();
-		\OC_Util::setupFS($user);
+    /**
+     * Act on behalf on trash item owner
+     * @param string $user
+     * @return boolean
+     */
+    protected function setupFS($user) {
+        \OC_Util::tearDownFS();
+        \OC_Util::setupFS($user);
 
-		// Check if this user has a trashbin directory
-		$view = new \OC\Files\View('/' . $user);
-		if (!$view->is_dir('/files_trashbin/files')) {
-			return false;
-		}
+        // Check if this user has a trashbin directory
+        $view = new \OC\Files\View('/' . $user);
+        if (!$view->is_dir('/files_trashbin/files')) {
+            return false;
+        }
 
-		return true;
-	}
+        return true;
+    }
 }