14 files changed, 0 insertions, 2356 deletions

diff --git a/lib/private/app/appmanager.php b/lib/private/app/appmanager.php
deleted file mode 100644
index 69e5334774e..00000000000
--- a/lib/private/app/appmanager.php
+++ /dev/null
@@ -1,370 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Christoph Schaefer <christophł@wolkesicher.de>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App;
-
-use OCP\App\IAppManager;
-use OCP\App\ManagerEvent;
-use OCP\IAppConfig;
-use OCP\ICacheFactory;
-use OCP\IGroupManager;
-use OCP\IUser;
-use OCP\IUserSession;
-use Symfony\Component\EventDispatcher\EventDispatcherInterface;
-
-class AppManager implements IAppManager {
-
-	/**
-	 * Apps with these types can not be enabled for certain groups only
-	 * @var string[]
-	 */
-	protected $protectedAppTypes = [
-		'filesystem',
-		'prelogin',
-		'authentication',
-		'logging',
-		'prevent_group_restriction',
-	];
-
-	/** @var \OCP\IUserSession */
-	private $userSession;
-
-	/** @var \OCP\IAppConfig */
-	private $appConfig;
-
-	/** @var \OCP\IGroupManager */
-	private $groupManager;
-
-	/** @var \OCP\ICacheFactory */
-	private $memCacheFactory;
-
-	/** @var string[] $appId => $enabled */
-	private $installedAppsCache;
-
-	/** @var string[] */
-	private $shippedApps;
-
-	/** @var string[] */
-	private $alwaysEnabled;
-
-	/** @var EventDispatcherInterface */
-	private $dispatcher;
-
-	/**
-	 * @param \OCP\IUserSession $userSession
-	 * @param \OCP\IAppConfig $appConfig
-	 * @param \OCP\IGroupManager $groupManager
-	 * @param \OCP\ICacheFactory $memCacheFactory
-	 */
-	public function __construct(IUserSession $userSession,
-								IAppConfig $appConfig,
-								IGroupManager $groupManager,
-								ICacheFactory $memCacheFactory,
-								EventDispatcherInterface $dispatcher) {
-		$this->userSession = $userSession;
-		$this->appConfig = $appConfig;
-		$this->groupManager = $groupManager;
-		$this->memCacheFactory = $memCacheFactory;
-		$this->dispatcher = $dispatcher;
-	}
-
-	/**
-	 * @return string[] $appId => $enabled
-	 */
-	private function getInstalledAppsValues() {
-		if (!$this->installedAppsCache) {
-			$values = $this->appConfig->getValues(false, 'enabled');
-
-			$alwaysEnabledApps = $this->getAlwaysEnabledApps();
-			foreach($alwaysEnabledApps as $appId) {
-				$values[$appId] = 'yes';
-			}
-
-			$this->installedAppsCache = array_filter($values, function ($value) {
-				return $value !== 'no';
-			});
-			ksort($this->installedAppsCache);
-		}
-		return $this->installedAppsCache;
-	}
-
-	/**
-	 * List all installed apps
-	 *
-	 * @return string[]
-	 */
-	public function getInstalledApps() {
-		return array_keys($this->getInstalledAppsValues());
-	}
-
-	/**
-	 * List all apps enabled for a user
-	 *
-	 * @param \OCP\IUser $user
-	 * @return string[]
-	 */
-	public function getEnabledAppsForUser(IUser $user) {
-		$apps = $this->getInstalledAppsValues();
-		$appsForUser = array_filter($apps, function ($enabled) use ($user) {
-			return $this->checkAppForUser($enabled, $user);
-		});
-		return array_keys($appsForUser);
-	}
-
-	/**
-	 * Check if an app is enabled for user
-	 *
-	 * @param string $appId
-	 * @param \OCP\IUser $user (optional) if not defined, the currently logged in user will be used
-	 * @return bool
-	 */
-	public function isEnabledForUser($appId, $user = null) {
-		if ($this->isAlwaysEnabled($appId)) {
-			return true;
-		}
-		if (is_null($user)) {
-			$user = $this->userSession->getUser();
-		}
-		$installedApps = $this->getInstalledAppsValues();
-		if (isset($installedApps[$appId])) {
-			return $this->checkAppForUser($installedApps[$appId], $user);
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string $enabled
-	 * @param IUser $user
-	 * @return bool
-	 */
-	private function checkAppForUser($enabled, $user) {
-		if ($enabled === 'yes') {
-			return true;
-		} elseif (is_null($user)) {
-			return false;
-		} else {
-			if(empty($enabled)){
-				return false;
-			}
-
-			$groupIds = json_decode($enabled);
-
-			if (!is_array($groupIds)) {
-				$jsonError = json_last_error();
-				\OC::$server->getLogger()->warning('AppManger::checkAppForUser - can\'t decode group IDs: ' . print_r($enabled, true) . ' - json error code: ' . $jsonError, ['app' => 'lib']);
-				return false;
-			}
-
-			$userGroups = $this->groupManager->getUserGroupIds($user);
-			foreach ($userGroups as $groupId) {
-				if (array_search($groupId, $groupIds) !== false) {
-					return true;
-				}
-			}
-			return false;
-		}
-	}
-
-	/**
-	 * Check if an app is installed in the instance
-	 *
-	 * @param string $appId
-	 * @return bool
-	 */
-	public function isInstalled($appId) {
-		$installedApps = $this->getInstalledAppsValues();
-		return isset($installedApps[$appId]);
-	}
-
-	/**
-	 * Enable an app for every user
-	 *
-	 * @param string $appId
-	 */
-	public function enableApp($appId) {
-		$this->installedAppsCache[$appId] = 'yes';
-		$this->appConfig->setValue($appId, 'enabled', 'yes');
-		$this->dispatcher->dispatch(ManagerEvent::EVENT_APP_ENABLE, new ManagerEvent(
-			ManagerEvent::EVENT_APP_ENABLE, $appId
-		));
-		$this->clearAppsCache();
-	}
-
-	/**
-	 * Enable an app only for specific groups
-	 *
-	 * @param string $appId
-	 * @param \OCP\IGroup[] $groups
-	 * @throws \Exception if app can't be enabled for groups
-	 */
-	public function enableAppForGroups($appId, $groups) {
-		$info = $this->getAppInfo($appId);
-		if (!empty($info['types'])) {
-			$protectedTypes = array_intersect($this->protectedAppTypes, $info['types']);
-			if (!empty($protectedTypes)) {
-				throw new \Exception("$appId can't be enabled for groups.");
-			}
-		}
-
-		$groupIds = array_map(function ($group) {
-			/** @var \OCP\IGroup $group */
-			return $group->getGID();
-		}, $groups);
-		$this->installedAppsCache[$appId] = json_encode($groupIds);
-		$this->appConfig->setValue($appId, 'enabled', json_encode($groupIds));
-		$this->dispatcher->dispatch(ManagerEvent::EVENT_APP_ENABLE_FOR_GROUPS, new ManagerEvent(
-			ManagerEvent::EVENT_APP_ENABLE_FOR_GROUPS, $appId, $groups
-		));
-		$this->clearAppsCache();
-	}
-
-	/**
-	 * Disable an app for every user
-	 *
-	 * @param string $appId
-	 * @throws \Exception if app can't be disabled
-	 */
-	public function disableApp($appId) {
-		if ($this->isAlwaysEnabled($appId)) {
-			throw new \Exception("$appId can't be disabled.");
-		}
-		unset($this->installedAppsCache[$appId]);
-		$this->appConfig->setValue($appId, 'enabled', 'no');
-		$this->dispatcher->dispatch(ManagerEvent::EVENT_APP_ENABLE, new ManagerEvent(
-			ManagerEvent::EVENT_APP_DISABLE, $appId
-		));
-		$this->clearAppsCache();
-	}
-
-	/**
-	 * Clear the cached list of apps when enabling/disabling an app
-	 */
-	public function clearAppsCache() {
-		$settingsMemCache = $this->memCacheFactory->create('settings');
-		$settingsMemCache->clear('listApps');
-	}
-
-	/**
-	 * Returns a list of apps that need upgrade
-	 *
-	 * @param array $version ownCloud version as array of version components
-	 * @return array list of app info from apps that need an upgrade
-	 *
-	 * @internal
-	 */
-	public function getAppsNeedingUpgrade($ocVersion) {
-		$appsToUpgrade = [];
-		$apps = $this->getInstalledApps();
-		foreach ($apps as $appId) {
-			$appInfo = $this->getAppInfo($appId);
-			$appDbVersion = $this->appConfig->getValue($appId, 'installed_version');
-			if ($appDbVersion
-				&& isset($appInfo['version'])
-				&& version_compare($appInfo['version'], $appDbVersion, '>')
-				&& \OC_App::isAppCompatible($ocVersion, $appInfo)
-			) {
-				$appsToUpgrade[] = $appInfo;
-			}
-		}
-
-		return $appsToUpgrade;
-	}
-
-	/**
-	 * Returns the app information from "appinfo/info.xml".
-	 *
-	 * @param string $appId app id
-	 *
-	 * @return array app iinfo
-	 *
-	 * @internal
-	 */
-	public function getAppInfo($appId) {
-		$appInfo = \OC_App::getAppInfo($appId);
-		if (!isset($appInfo['version'])) {
-			// read version from separate file
-			$appInfo['version'] = \OC_App::getAppVersion($appId);
-		}
-		return $appInfo;
-	}
-
-	/**
-	 * Returns a list of apps incompatible with the given version
-	 *
-	 * @param array $version ownCloud version as array of version components
-	 *
-	 * @return array list of app info from incompatible apps
-	 *
-	 * @internal
-	 */
-	public function getIncompatibleApps($version) {
-		$apps = $this->getInstalledApps();
-		$incompatibleApps = array();
-		foreach ($apps as $appId) {
-			$info = $this->getAppInfo($appId);
-			if (!\OC_App::isAppCompatible($version, $info)) {
-				$incompatibleApps[] = $info;
-			}
-		}
-		return $incompatibleApps;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function isShipped($appId) {
-		$this->loadShippedJson();
-		return in_array($appId, $this->shippedApps);
-	}
-
-	private function isAlwaysEnabled($appId) {
-		$alwaysEnabled = $this->getAlwaysEnabledApps();
-		return in_array($appId, $alwaysEnabled);
-	}
-
-	private function loadShippedJson() {
-		if (is_null($this->shippedApps)) {
-			$shippedJson = \OC::$SERVERROOT . '/core/shipped.json';
-			if (!file_exists($shippedJson)) {
-				throw new \Exception("File not found: $shippedJson");
-			}
-			$content = json_decode(file_get_contents($shippedJson), true);
-			$this->shippedApps = $content['shippedApps'];
-			$this->alwaysEnabled = $content['alwaysEnabled'];
-		}
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getAlwaysEnabledApps() {
-		$this->loadShippedJson();
-		return $this->alwaysEnabled;
-	}
-}
diff --git a/lib/private/app/codechecker/abstractcheck.php b/lib/private/app/codechecker/abstractcheck.php
deleted file mode 100644
index ca91d366482..00000000000
--- a/lib/private/app/codechecker/abstractcheck.php
+++ /dev/null
@@ -1,139 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App\CodeChecker;
-
-abstract class AbstractCheck implements ICheck {
-	/** @var ICheck */
-	protected $check;
-
-	/**
-	 * @param ICheck $check
-	 */
-	public function __construct(ICheck $check) {
-		$this->check = $check;
-	}
-
-	/**
-	 * @param int $errorCode
-	 * @param string $errorObject
-	 * @return string
-	 */
-	public function getDescription($errorCode, $errorObject) {
-		switch ($errorCode) {
-			case CodeChecker::STATIC_CALL_NOT_ALLOWED:
-				$functions = $this->getLocalFunctions();
-				$functions = array_change_key_case($functions, CASE_LOWER);
-				if (isset($functions[$errorObject])) {
-					return $this->getLocalDescription();
-				}
-			// no break;
-			case CodeChecker::CLASS_EXTENDS_NOT_ALLOWED:
-			case CodeChecker::CLASS_IMPLEMENTS_NOT_ALLOWED:
-			case CodeChecker::CLASS_NEW_NOT_ALLOWED:
-			case CodeChecker::CLASS_USE_NOT_ALLOWED:
-				$classes = $this->getLocalClasses();
-				$classes = array_change_key_case($classes, CASE_LOWER);
-				if (isset($classes[$errorObject])) {
-					return $this->getLocalDescription();
-				}
-			break;
-
-			case CodeChecker::CLASS_CONST_FETCH_NOT_ALLOWED:
-				$constants = $this->getLocalConstants();
-				$constants = array_change_key_case($constants, CASE_LOWER);
-				if (isset($constants[$errorObject])) {
-					return $this->getLocalDescription();
-				}
-			break;
-
-			case CodeChecker::CLASS_METHOD_CALL_NOT_ALLOWED:
-				$methods = $this->getLocalMethods();
-				$methods = array_change_key_case($methods, CASE_LOWER);
-				if (isset($methods[$errorObject])) {
-					return $this->getLocalDescription();
-				}
-			break;
-		}
-
-		return $this->check->getDescription($errorCode, $errorObject);
-	}
-
-	/**
-	 * @return string
-	 */
-	abstract protected function getLocalDescription();
-
-	/**
-	 * @return array
-	 */
-	abstract protected function getLocalClasses();
-
-	/**
-	 * @return array
-	 */
-	abstract protected function getLocalConstants();
-
-	/**
-	 * @return array
-	 */
-	abstract protected function getLocalFunctions();
-
-	/**
-	 * @return array
-	 */
-	abstract protected function getLocalMethods();
-
-	/**
-	 * @return array E.g.: `'ClassName' => 'oc version',`
-	 */
-	public function getClasses() {
-		return array_merge($this->getLocalClasses(), $this->check->getClasses());
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName::CONSTANT_NAME' => 'oc version',`
-	 */
-	public function getConstants() {
-		return array_merge($this->getLocalConstants(), $this->check->getConstants());
-	}
-
-	/**
-	 * @return array E.g.: `'functionName' => 'oc version',`
-	 */
-	public function getFunctions() {
-		return array_merge($this->getLocalFunctions(), $this->check->getFunctions());
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName::methodName' => 'oc version',`
-	 */
-	public function getMethods() {
-		return array_merge($this->getLocalMethods(), $this->check->getMethods());
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function checkStrongComparisons() {
-		return $this->check->checkStrongComparisons();
-	}
-}
diff --git a/lib/private/app/codechecker/codechecker.php b/lib/private/app/codechecker/codechecker.php
deleted file mode 100644
index 0ca597ccb4e..00000000000
--- a/lib/private/app/codechecker/codechecker.php
+++ /dev/null
@@ -1,125 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App\CodeChecker;
-
-use OC\Hooks\BasicEmitter;
-use PhpParser\Lexer;
-use PhpParser\Node;
-use PhpParser\Node\Name;
-use PhpParser\NodeTraverser;
-use PhpParser\Parser;
-use RecursiveCallbackFilterIterator;
-use RecursiveDirectoryIterator;
-use RecursiveIteratorIterator;
-use RegexIterator;
-use SplFileInfo;
-
-class CodeChecker extends BasicEmitter {
-
-	const CLASS_EXTENDS_NOT_ALLOWED = 1000;
-	const CLASS_IMPLEMENTS_NOT_ALLOWED = 1001;
-	const STATIC_CALL_NOT_ALLOWED = 1002;
-	const CLASS_CONST_FETCH_NOT_ALLOWED = 1003;
-	const CLASS_NEW_NOT_ALLOWED =  1004;
-	const OP_OPERATOR_USAGE_DISCOURAGED =  1005;
-	const CLASS_USE_NOT_ALLOWED =  1006;
-	const CLASS_METHOD_CALL_NOT_ALLOWED =  1007;
-
-	/** @var Parser */
-	private $parser;
-
-	/** @var ICheck */
-	protected $checkList;
-
-	public function __construct(ICheck $checkList) {
-		$this->checkList = $checkList;
-		$this->parser = new Parser(new Lexer);
-	}
-
-	/**
-	 * @param string $appId
-	 * @return array
-	 */
-	public function analyse($appId) {
-		$appPath = \OC_App::getAppPath($appId);
-		if ($appPath === false) {
-			throw new \RuntimeException("No app with given id <$appId> known.");
-		}
-
-		return $this->analyseFolder($appPath);
-	}
-
-	/**
-	 * @param string $folder
-	 * @return array
-	 */
-	public function analyseFolder($folder) {
-		$errors = [];
-
-		$excludes = array_map(function($item) use ($folder) {
-			return $folder . '/' . $item;
-		}, ['vendor', '3rdparty', '.git', 'l10n', 'tests', 'test']);
-
-		$iterator = new RecursiveDirectoryIterator($folder, RecursiveDirectoryIterator::SKIP_DOTS);
-		$iterator = new RecursiveCallbackFilterIterator($iterator, function($item) use ($folder, $excludes){
-			/** @var SplFileInfo $item */
-			foreach($excludes as $exclude) {
-				if (substr($item->getPath(), 0, strlen($exclude)) === $exclude) {
-					return false;
-				}
-			}
-			return true;
-		});
-		$iterator = new RecursiveIteratorIterator($iterator);
-		$iterator = new RegexIterator($iterator, '/^.+\.php$/i');
-
-		foreach ($iterator as $file) {
-			/** @var SplFileInfo $file */
-			$this->emit('CodeChecker', 'analyseFileBegin', [$file->getPathname()]);
-			$fileErrors = $this->analyseFile($file);
-			$this->emit('CodeChecker', 'analyseFileFinished', [$file->getPathname(), $fileErrors]);
-			$errors = array_merge($fileErrors, $errors);
-		}
-
-		return $errors;
-	}
-
-
-	/**
-	 * @param string $file
-	 * @return array
-	 */
-	public function analyseFile($file) {
-		$code = file_get_contents($file);
-		$statements = $this->parser->parse($code);
-
-		$visitor = new NodeVisitor($this->checkList);
-		$traverser = new NodeTraverser;
-		$traverser->addVisitor($visitor);
-
-		$traverser->traverse($statements);
-
-		return $visitor->errors;
-	}
-}
diff --git a/lib/private/app/codechecker/deprecationcheck.php b/lib/private/app/codechecker/deprecationcheck.php
deleted file mode 100644
index fa5eae8ab1d..00000000000
--- a/lib/private/app/codechecker/deprecationcheck.php
+++ /dev/null
@@ -1,168 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App\CodeChecker;
-
-class DeprecationCheck extends AbstractCheck implements ICheck {
-	/**
-	 * @return string
-	 */
-	protected function getLocalDescription() {
-		return 'deprecated';
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName' => 'oc version',`
-	 */
-	protected function getLocalClasses() {
-		return [
-			'OC_JSON' => '8.2.0',
-
-			'OCP\Config' => '8.0.0',
-			'OCP\Contacts' => '8.1.0',
-			'OCP\DB' => '8.1.0',
-			'OCP\IHelper' => '8.1.0',
-			'OCP\JSON' => '8.1.0',
-			'OCP\Response' => '8.1.0',
-			'OCP\AppFramework\IApi' => '8.0.0',
-		];
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName::CONSTANT_NAME' => 'oc version',`
-	 */
-	protected function getLocalConstants() {
-		return [
-			'OC_API::GUEST_AUTH' => '8.2.0',
-			'OC_API::USER_AUTH' => '8.2.0',
-			'OC_API::SUBADMIN_AUTH' => '8.2.0',
-			'OC_API::ADMIN_AUTH' => '8.2.0',
-			'OC_API::RESPOND_UNAUTHORISED' => '8.2.0',
-			'OC_API::RESPOND_SERVER_ERROR' => '8.2.0',
-			'OC_API::RESPOND_NOT_FOUND' => '8.2.0',
-			'OC_API::RESPOND_UNKNOWN_ERROR' => '8.2.0',
-
-			'OCP::PERMISSION_CREATE' => '8.0.0',
-			'OCP::PERMISSION_READ' => '8.0.0',
-			'OCP::PERMISSION_UPDATE' => '8.0.0',
-			'OCP::PERMISSION_DELETE' => '8.0.0',
-			'OCP::PERMISSION_SHARE' => '8.0.0',
-			'OCP::PERMISSION_ALL' => '8.0.0',
-			'OCP::FILENAME_INVALID_CHARS' => '8.0.0',
-		];
-	}
-
-	/**
-	 * @return array E.g.: `'functionName' => 'oc version',`
-	 */
-	protected function getLocalFunctions() {
-		return [
-			'OCP::image_path' => '8.0.0',
-			'OCP::mimetype_icon' => '8.0.0',
-			'OCP::preview_icon' => '8.0.0',
-			'OCP::publicPreview_icon' => '8.0.0',
-			'OCP::human_file_size' => '8.0.0',
-			'OCP::relative_modified_date' => '8.0.0',
-			'OCP::simple_file_size' => '8.0.0',
-			'OCP::html_select_options' => '8.0.0',
-		];
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName::methodName' => 'oc version',`
-	 */
-	protected function getLocalMethods() {
-		return [
-			'OC_L10N::get' => '8.2.0',
-
-			'OCP\Activity\IManager::publishActivity' => '8.2.0',
-
-			'OCP\App::register' => '8.1.0',
-			'OCP\App::addNavigationEntry' => '8.1.0',
-			'OCP\App::getActiveNavigationEntry' => '8.2.0',
-			'OCP\App::setActiveNavigationEntry' => '8.1.0',
-
-			'OCP\AppFramework\Controller::params' => '7.0.0',
-			'OCP\AppFramework\Controller::getParams' => '7.0.0',
-			'OCP\AppFramework\Controller::method' => '7.0.0',
-			'OCP\AppFramework\Controller::getUploadedFile' => '7.0.0',
-			'OCP\AppFramework\Controller::env' => '7.0.0',
-			'OCP\AppFramework\Controller::cookie' => '7.0.0',
-			'OCP\AppFramework\Controller::render' => '7.0.0',
-
-			'OCP\AppFramework\IAppContainer::getCoreApi' => '8.0.0',
-			'OCP\AppFramework\IAppContainer::isLoggedIn' => '8.0.0',
-			'OCP\AppFramework\IAppContainer::isAdminUser' => '8.0.0',
-			'OCP\AppFramework\IAppContainer::log' => '8.0.0',
-
-			'OCP\BackgroundJob::addQueuedTask' => '6.0.0',
-			'OCP\BackgroundJob::addRegularTask' => '6.0.0',
-			'OCP\BackgroundJob::allQueuedTasks' => '6.0.0',
-			'OCP\BackgroundJob::allRegularTasks' => '6.0.0',
-			'OCP\BackgroundJob::deleteQueuedTask' => '6.0.0',
-			'OCP\BackgroundJob::findQueuedTask' => '6.0.0',
-			'OCP\BackgroundJob::queuedTaskWhereAppIs' => '6.0.0',
-			'OCP\BackgroundJob::registerJob' => '8.1.0',
-
-			'OCP\Files::tmpFile' => '8.1.0',
-			'OCP\Files::tmpFolder' => '8.1.0',
-
-			'OCP\IAppConfig::getValue' => '8.0.0',
-			'OCP\IAppConfig::deleteKey' => '8.0.0',
-			'OCP\IAppConfig::getKeys' => '8.0.0',
-			'OCP\IAppConfig::setValue' => '8.0.0',
-			'OCP\IAppConfig::deleteApp' => '8.0.0',
-
-			'OCP\IDBConnection::createQueryBuilder' => '8.2.0',
-			'OCP\IDBConnection::getExpressionBuilder' => '8.2.0',
-
-			'OCP\ISearch::search' => '8.0.0',
-
-			'OCP\IServerContainer::getCache' => '8.2.0',
-			'OCP\IServerContainer::getDb' => '8.1.0',
-			'OCP\IServerContainer::getHTTPHelper' => '8.1.0',
-
-			'OCP\User::getUser' => '8.0.0',
-			'OCP\User::getUsers' => '8.1.0',
-			'OCP\User::getDisplayName' => '8.1.0',
-			'OCP\User::getDisplayNames' => '8.1.0',
-			'OCP\User::userExists' => '8.1.0',
-			'OCP\User::logout' => '8.1.0',
-			'OCP\User::checkPassword' => '8.1.0',
-
-			'OCP\Util::encryptedFiles' => '8.1.0',
-			'OCP\Util::formatDate' => '8.0.0',
-			'OCP\Util::generateRandomBytes' => '8.1.0',
-			'OCP\Util::getServerHost' => '8.1.0',
-			'OCP\Util::getServerProtocol' => '8.1.0',
-			'OCP\Util::getRequestUri' => '8.1.0',
-			'OCP\Util::getScriptName' => '8.1.0',
-			'OCP\Util::imagePath' => '8.1.0',
-			'OCP\Util::isValidFileName' => '8.1.0',
-			'OCP\Util::linkToRoute' => '8.1.0',
-			'OCP\Util::linkTo' => '8.1.0',
-			'OCP\Util::logException' => '8.2.0',
-			'OCP\Util::mb_str_replace' => '8.2.0',
-			'OCP\Util::mb_substr_replace' => '8.2.0',
-			'OCP\Util::sendMail' => '8.1.0',
-		];
-	}
-}
diff --git a/lib/private/app/codechecker/emptycheck.php b/lib/private/app/codechecker/emptycheck.php
deleted file mode 100644
index b779926d5e4..00000000000
--- a/lib/private/app/codechecker/emptycheck.php
+++ /dev/null
@@ -1,67 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\App\CodeChecker;
-
-class EmptyCheck implements ICheck {
-	/**
-	 * @param int $errorCode
-	 * @param string $errorObject
-	 * @return string
-	 */
-	public function getDescription($errorCode, $errorObject) {
-		return '';
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName' => 'oc version',`
-	 */
-	public function getClasses() {
-		return [];
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName::CONSTANT_NAME' => 'oc version',`
-	 */
-	public function getConstants() {
-		return [];
-	}
-
-	/**
-	 * @return array E.g.: `'functionName' => 'oc version',`
-	 */
-	public function getFunctions() {
-		return [];
-	}
-
-	/**
-	 * @return array E.g.: `'ClassName::methodName' => 'oc version',`
-	 */
-	public function getMethods() {
-		return [];
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function checkStrongComparisons() {
-		return false;
-	}
-}
diff --git a/lib/private/app/codechecker/icheck.php b/lib/private/app/codechecker/icheck.php
deleted file mode 100644
index 97e0bc9b8a0..00000000000
--- a/lib/private/app/codechecker/icheck.php
+++ /dev/null
@@ -1,55 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\App\CodeChecker;
-
-interface ICheck {
-	/**
-	 * @param int $errorCode
-	 * @param string $errorObject
-	 * @return string
-	 */
-	public function getDescription($errorCode, $errorObject);
-
-	/**
-	 * @return array E.g.: `'ClassName' => 'oc version',`
-	 */
-	public function getClasses();
-
-	/**
-	 * @return array E.g.: `'ClassName::CONSTANT_NAME' => 'oc version',`
-	 */
-	public function getConstants();
-
-	/**
-	 * @return array E.g.: `'functionName' => 'oc version',`
-	 */
-	public function getFunctions();
-
-	/**
-	 * @return array E.g.: `'ClassName::methodName' => 'oc version',`
-	 */
-	public function getMethods();
-
-	/**
-	 * @return bool
-	 */
-	public function checkStrongComparisons();
-}
diff --git a/lib/private/app/codechecker/infochecker.php b/lib/private/app/codechecker/infochecker.php
deleted file mode 100644
index 812007d8839..00000000000
--- a/lib/private/app/codechecker/infochecker.php
+++ /dev/null
@@ -1,160 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App\CodeChecker;
-
-use OC\App\InfoParser;
-use OC\Hooks\BasicEmitter;
-
-class InfoChecker extends BasicEmitter {
-
-	/** @var InfoParser */
-	private $infoParser;
-
-	private $mandatoryFields = [
-		'author',
-		'description',
-		'id',
-		'licence',
-		'name',
-	];
-	private $optionalFields = [
-		'bugs',
-		'category',
-		'default_enable',
-		'dependencies', // TODO: Mandatory as of ownCloud 11
-		'documentation',
-		'namespace',
-		'ocsid',
-		'public',
-		'remote',
-		'repository',
-		'types',
-		'version',
-		'website',
-	];
-	private $deprecatedFields = [
-		'info',
-		'require',
-		'requiremax',
-		'requiremin',
-		'shipped',
-		'standalone',
-	];
-
-	public function __construct(InfoParser $infoParser) {
-		$this->infoParser = $infoParser;
-	}
-
-	/**
-	 * @param string $appId
-	 * @return array
-	 */
-	public function analyse($appId) {
-		$appPath = \OC_App::getAppPath($appId);
-		if ($appPath === false) {
-			throw new \RuntimeException("No app with given id <$appId> known.");
-		}
-
-		$errors = [];
-
-		$info = $this->infoParser->parse($appPath . '/appinfo/info.xml');
-
-		if (isset($info['dependencies']['owncloud']['@attributes']['min-version']) && ($info['requiremin'] || $info['require'])) {
-			$this->emit('InfoChecker', 'duplicateRequirement', ['min']);
-			$errors[] = [
-				'type' => 'duplicateRequirement',
-				'field' => 'min',
-			];
-		} else if (!isset($info['dependencies']['owncloud']['@attributes']['min-version'])) {
-			$this->emit('InfoChecker', 'missingRequirement', ['min']);
-		}
-
-		if (isset($info['dependencies']['owncloud']['@attributes']['max-version']) && $info['requiremax']) {
-			$this->emit('InfoChecker', 'duplicateRequirement', ['max']);
-			$errors[] = [
-				'type' => 'duplicateRequirement',
-				'field' => 'max',
-			];
-		} else if (!isset($info['dependencies']['owncloud']['@attributes']['max-version'])) {
-			$this->emit('InfoChecker', 'missingRequirement', ['max']);
-		}
-
-		foreach ($info as $key => $value) {
-			if(is_array($value)) {
-				$value = json_encode($value);
-			}
-			if (in_array($key, $this->mandatoryFields)) {
-				$this->emit('InfoChecker', 'mandatoryFieldFound', [$key, $value]);
-				continue;
-			}
-
-			if (in_array($key, $this->optionalFields)) {
-				$this->emit('InfoChecker', 'optionalFieldFound', [$key, $value]);
-				continue;
-			}
-
-			if (in_array($key, $this->deprecatedFields)) {
-				// skip empty arrays - empty arrays for remote and public are always added
-				if($value === '[]' && in_array($key, ['public', 'remote', 'info'])) {
-					continue;
-				}
-				$this->emit('InfoChecker', 'deprecatedFieldFound', [$key, $value]);
-				continue;
-			}
-
-			$this->emit('InfoChecker', 'unusedFieldFound', [$key, $value]);
-		}
-
-		foreach ($this->mandatoryFields as $key) {
-			if(!isset($info[$key])) {
-				$this->emit('InfoChecker', 'mandatoryFieldMissing', [$key]);
-				$errors[] = [
-					'type' => 'mandatoryFieldMissing',
-					'field' => $key,
-				];
-			}
-		}
-
-		$versionFile = $appPath . '/appinfo/version';
-		if (is_file($versionFile)) {
-			$version = trim(file_get_contents($versionFile));
-			if (isset($info['version'])) {
-				if($info['version'] !== $version) {
-					$this->emit('InfoChecker', 'differentVersions',
-						[$version, $info['version']]);
-					$errors[] = [
-						'type' => 'differentVersions',
-						'message' => 'appinfo/version: ' . $version .
-							' - appinfo/info.xml: ' . $info['version'],
-					];
-				} else {
-					$this->emit('InfoChecker', 'sameVersions', [$versionFile]);
-				}
-			} else {
-				$this->emit('InfoChecker', 'migrateVersion', [$version]);
-			}
-		}
-
-		return $errors;
-	}
-}
diff --git a/lib/private/app/codechecker/nodevisitor.php b/lib/private/app/codechecker/nodevisitor.php
deleted file mode 100644
index f9386caeeae..00000000000
--- a/lib/private/app/codechecker/nodevisitor.php
+++ /dev/null
@@ -1,307 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App\CodeChecker;
-
-use PhpParser\Node;
-use PhpParser\Node\Name;
-use PhpParser\NodeVisitorAbstract;
-
-class NodeVisitor extends NodeVisitorAbstract {
-	/** @var ICheck */
-	protected $list;
-
-	/** @var string */
-	protected $blackListDescription;
-	/** @var string[] */
-	protected $blackListedClassNames;
-	/** @var string[] */
-	protected $blackListedConstants;
-	/** @var string[] */
-	protected $blackListedFunctions;
-	/** @var string[] */
-	protected $blackListedMethods;
-	/** @var bool */
-	protected $checkEqualOperatorUsage;
-	/** @var string[] */
-	protected $errorMessages;
-
-	/**
-	 * @param ICheck $list
-	 */
-	public function __construct(ICheck $list) {
-		$this->list = $list;
-
-		$this->blackListedClassNames = [];
-		foreach ($list->getClasses() as $class => $blackListInfo) {
-			if (is_numeric($class) && is_string($blackListInfo)) {
-				$class = $blackListInfo;
-				$blackListInfo = null;
-			}
-
-			$class = strtolower($class);
-			$this->blackListedClassNames[$class] = $class;
-		}
-
-		$this->blackListedConstants = [];
-		foreach ($list->getConstants() as $constantName => $blackListInfo) {
-			$constantName = strtolower($constantName);
-			$this->blackListedConstants[$constantName] = $constantName;
-		}
-
-		$this->blackListedFunctions = [];
-		foreach ($list->getFunctions() as $functionName => $blackListInfo) {
-			$functionName = strtolower($functionName);
-			$this->blackListedFunctions[$functionName] = $functionName;
-		}
-
-		$this->blackListedMethods = [];
-		foreach ($list->getMethods() as $functionName => $blackListInfo) {
-			$functionName = strtolower($functionName);
-			$this->blackListedMethods[$functionName] = $functionName;
-		}
-
-		$this->checkEqualOperatorUsage = $list->checkStrongComparisons();
-
-		$this->errorMessages = [
-			CodeChecker::CLASS_EXTENDS_NOT_ALLOWED => "%s class must not be extended",
-			CodeChecker::CLASS_IMPLEMENTS_NOT_ALLOWED => "%s interface must not be implemented",
-			CodeChecker::STATIC_CALL_NOT_ALLOWED => "Static method of %s class must not be called",
-			CodeChecker::CLASS_CONST_FETCH_NOT_ALLOWED => "Constant of %s class must not not be fetched",
-			CodeChecker::CLASS_NEW_NOT_ALLOWED => "%s class must not be instantiated",
-			CodeChecker::CLASS_USE_NOT_ALLOWED => "%s class must not be imported with a use statement",
-			CodeChecker::CLASS_METHOD_CALL_NOT_ALLOWED => "Method of %s class must not be called",
-
-			CodeChecker::OP_OPERATOR_USAGE_DISCOURAGED => "is discouraged",
-		];
-	}
-
-	/** @var array */
-	public $errors = [];
-
-	public function enterNode(Node $node) {
-		if ($this->checkEqualOperatorUsage && $node instanceof Node\Expr\BinaryOp\Equal) {
-			$this->errors[]= [
-				'disallowedToken' => '==',
-				'errorCode' => CodeChecker::OP_OPERATOR_USAGE_DISCOURAGED,
-				'line' => $node->getLine(),
-				'reason' => $this->buildReason('==', CodeChecker::OP_OPERATOR_USAGE_DISCOURAGED)
-			];
-		}
-		if ($this->checkEqualOperatorUsage && $node instanceof Node\Expr\BinaryOp\NotEqual) {
-			$this->errors[]= [
-				'disallowedToken' => '!=',
-				'errorCode' => CodeChecker::OP_OPERATOR_USAGE_DISCOURAGED,
-				'line' => $node->getLine(),
-				'reason' => $this->buildReason('!=', CodeChecker::OP_OPERATOR_USAGE_DISCOURAGED)
-			];
-		}
-		if ($node instanceof Node\Stmt\Class_) {
-			if (!is_null($node->extends)) {
-				$this->checkBlackList($node->extends->toString(), CodeChecker::CLASS_EXTENDS_NOT_ALLOWED, $node);
-			}
-			foreach ($node->implements as $implements) {
-				$this->checkBlackList($implements->toString(), CodeChecker::CLASS_IMPLEMENTS_NOT_ALLOWED, $node);
-			}
-		}
-		if ($node instanceof Node\Expr\StaticCall) {
-			if (!is_null($node->class)) {
-				if ($node->class instanceof Name) {
-					$this->checkBlackList($node->class->toString(), CodeChecker::STATIC_CALL_NOT_ALLOWED, $node);
-
-					$this->checkBlackListFunction($node->class->toString(), $node->name, $node);
-					$this->checkBlackListMethod($node->class->toString(), $node->name, $node);
-				}
-
-				if ($node->class instanceof Node\Expr\Variable) {
-					/**
-					 * TODO: find a way to detect something like this:
-					 *       $c = "OC_API";
-					 *       $n = $c::call();
-					 */
-					// $this->checkBlackListMethod($node->class->..., $node->name, $node);
-				}
-			}
-		}
-		if ($node instanceof Node\Expr\MethodCall) {
-			if (!is_null($node->var)) {
-				if ($node->var instanceof Node\Expr\Variable) {
-					/**
-					 * TODO: find a way to detect something like this:
-					 *       $c = new OC_API();
-					 *       $n = $c::call();
-					 *       $n = $c->call();
-					 */
-					// $this->checkBlackListMethod($node->var->..., $node->name, $node);
-				}
-			}
-		}
-		if ($node instanceof Node\Expr\ClassConstFetch) {
-			if (!is_null($node->class)) {
-				if ($node->class instanceof Name) {
-					$this->checkBlackList($node->class->toString(), CodeChecker::CLASS_CONST_FETCH_NOT_ALLOWED, $node);
-				}
-				if ($node->class instanceof Node\Expr\Variable) {
-					/**
-					 * TODO: find a way to detect something like this:
-					 *       $c = "OC_API";
-					 *       $n = $i::ADMIN_AUTH;
-					 */
-				} else {
-					$this->checkBlackListConstant($node->class->toString(), $node->name, $node);
-				}
-			}
-		}
-		if ($node instanceof Node\Expr\New_) {
-			if (!is_null($node->class)) {
-				if ($node->class instanceof Name) {
-					$this->checkBlackList($node->class->toString(), CodeChecker::CLASS_NEW_NOT_ALLOWED, $node);
-				}
-				if ($node->class instanceof Node\Expr\Variable) {
-					/**
-					 * TODO: find a way to detect something like this:
-					 *       $c = "OC_API";
-					 *       $n = new $i;
-					 */
-				}
-			}
-		}
-		if ($node instanceof Node\Stmt\UseUse) {
-			$this->checkBlackList($node->name->toString(), CodeChecker::CLASS_USE_NOT_ALLOWED, $node);
-			if ($node->alias) {
-				$this->addUseNameToBlackList($node->name->toString(), $node->alias);
-			} else {
-				$this->addUseNameToBlackList($node->name->toString(), $node->name->getLast());
-			}
-		}
-	}
-
-	/**
-	 * Check whether an alias was introduced for a namespace of a blacklisted class
-	 *
-	 * Example:
-	 * - Blacklist entry:      OCP\AppFramework\IApi
-	 * - Name:                 OCP\AppFramework
-	 * - Alias:                OAF
-	 * =>  new blacklist entry:  OAF\IApi
-	 *
-	 * @param string $name
-	 * @param string $alias
-	 */
-	private function addUseNameToBlackList($name, $alias) {
-		$name = strtolower($name);
-		$alias = strtolower($alias);
-
-		foreach ($this->blackListedClassNames as $blackListedAlias => $blackListedClassName) {
-			if (strpos($blackListedClassName, $name . '\\') === 0) {
-				$aliasedClassName = str_replace($name, $alias, $blackListedClassName);
-				$this->blackListedClassNames[$aliasedClassName] = $blackListedClassName;
-			}
-		}
-
-		foreach ($this->blackListedConstants as $blackListedAlias => $blackListedConstant) {
-			if (strpos($blackListedConstant, $name . '\\') === 0 || strpos($blackListedConstant, $name . '::') === 0) {
-				$aliasedConstantName = str_replace($name, $alias, $blackListedConstant);
-				$this->blackListedConstants[$aliasedConstantName] = $blackListedConstant;
-			}
-		}
-
-		foreach ($this->blackListedFunctions as $blackListedAlias => $blackListedFunction) {
-			if (strpos($blackListedFunction, $name . '\\') === 0 || strpos($blackListedFunction, $name . '::') === 0) {
-				$aliasedFunctionName = str_replace($name, $alias, $blackListedFunction);
-				$this->blackListedFunctions[$aliasedFunctionName] = $blackListedFunction;
-			}
-		}
-
-		foreach ($this->blackListedMethods as $blackListedAlias => $blackListedMethod) {
-			if (strpos($blackListedMethod, $name . '\\') === 0 || strpos($blackListedMethod, $name . '::') === 0) {
-				$aliasedMethodName = str_replace($name, $alias, $blackListedMethod);
-				$this->blackListedMethods[$aliasedMethodName] = $blackListedMethod;
-			}
-		}
-	}
-
-	private function checkBlackList($name, $errorCode, Node $node) {
-		$lowerName = strtolower($name);
-
-		if (isset($this->blackListedClassNames[$lowerName])) {
-			$this->errors[]= [
-				'disallowedToken' => $name,
-				'errorCode' => $errorCode,
-				'line' => $node->getLine(),
-				'reason' => $this->buildReason($this->blackListedClassNames[$lowerName], $errorCode)
-			];
-		}
-	}
-
-	private function checkBlackListConstant($class, $constantName, Node $node) {
-		$name = $class . '::' . $constantName;
-		$lowerName = strtolower($name);
-
-		if (isset($this->blackListedConstants[$lowerName])) {
-			$this->errors[]= [
-				'disallowedToken' => $name,
-				'errorCode' => CodeChecker::CLASS_CONST_FETCH_NOT_ALLOWED,
-				'line' => $node->getLine(),
-				'reason' => $this->buildReason($this->blackListedConstants[$lowerName], CodeChecker::CLASS_CONST_FETCH_NOT_ALLOWED)
-			];
-		}
-	}
-
-	private function checkBlackListFunction($class, $functionName, Node $node) {
-		$name = $class . '::' . $functionName;
-		$lowerName = strtolower($name);
-
-		if (isset($this->blackListedFunctions[$lowerName])) {
-			$this->errors[]= [
-				'disallowedToken' => $name,
-				'errorCode' => CodeChecker::STATIC_CALL_NOT_ALLOWED,
-				'line' => $node->getLine(),
-				'reason' => $this->buildReason($this->blackListedFunctions[$lowerName], CodeChecker::STATIC_CALL_NOT_ALLOWED)
-			];
-		}
-	}
-
-	private function checkBlackListMethod($class, $functionName, Node $node) {
-		$name = $class . '::' . $functionName;
-		$lowerName = strtolower($name);
-
-		if (isset($this->blackListedMethods[$lowerName])) {
-			$this->errors[]= [
-				'disallowedToken' => $name,
-				'errorCode' => CodeChecker::CLASS_METHOD_CALL_NOT_ALLOWED,
-				'line' => $node->getLine(),
-				'reason' => $this->buildReason($this->blackListedMethods[$lowerName], CodeChecker::CLASS_METHOD_CALL_NOT_ALLOWED)
-			];
-		}
-	}
-
-	private function buildReason($name, $errorCode) {
-		if (isset($this->errorMessages[$errorCode])) {
-			$desc = $this->list->getDescription($errorCode, $name);
-			return sprintf($this->errorMessages[$errorCode], $desc);
-		}
-
-		return "$name usage not allowed - error: $errorCode";
-	}
-}
diff --git a/lib/private/app/codechecker/privatecheck.php b/lib/private/app/codechecker/privatecheck.php
deleted file mode 100644
index 32248ab21e2..00000000000
--- a/lib/private/app/codechecker/privatecheck.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App\CodeChecker;
-
-class PrivateCheck extends AbstractCheck implements ICheck {
-	/**
-	 * @return string
-	 */
-	protected function getLocalDescription() {
-		return 'private';
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getLocalClasses() {
-		return [
-			// classes replaced by the public api
-			'OC_API' => '6.0.0',
-			'OC_App' => '6.0.0',
-			'OC_AppConfig' => '6.0.0',
-			'OC_Avatar' => '6.0.0',
-			'OC_BackgroundJob' => '6.0.0',
-			'OC_Config' => '6.0.0',
-			'OC_DB' => '6.0.0',
-			'OC_Files' => '6.0.0',
-			'OC_Helper' => '6.0.0',
-			'OC_Hook' => '6.0.0',
-			'OC_Image' => '6.0.0',
-			'OC_JSON' => '6.0.0',
-			'OC_L10N' => '6.0.0',
-			'OC_Log' => '6.0.0',
-			'OC_Mail' => '6.0.0',
-			'OC_Preferences' => '6.0.0',
-			'OC_Search_Provider' => '6.0.0',
-			'OC_Search_Result' => '6.0.0',
-			'OC_Request' => '6.0.0',
-			'OC_Response' => '6.0.0',
-			'OC_Template' => '6.0.0',
-			'OC_User' => '6.0.0',
-			'OC_Util' => '6.0.0',
-		];
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getLocalConstants() {
-		return [];
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getLocalFunctions() {
-		return [];
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getLocalMethods() {
-		return [];
-	}
-}
diff --git a/lib/private/app/codechecker/strongcomparisoncheck.php b/lib/private/app/codechecker/strongcomparisoncheck.php
deleted file mode 100644
index 919647a6a54..00000000000
--- a/lib/private/app/codechecker/strongcomparisoncheck.php
+++ /dev/null
@@ -1,78 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App\CodeChecker;
-
-class StrongComparisonCheck implements ICheck {
-	/** @var ICheck */
-	protected $check;
-
-	/**
-	 * @param ICheck $check
-	 */
-	public function __construct(ICheck $check) {
-		$this->check = $check;
-	}
-
-	/**
-	 * @param int $errorCode
-	 * @param string $errorObject
-	 * @return string
-	 */
-	public function getDescription($errorCode, $errorObject) {
-		return $this->check->getDescription($errorCode, $errorObject);
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getClasses() {
-		return $this->check->getClasses();
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getConstants() {
-		return $this->check->getConstants();
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getFunctions() {
-		return $this->check->getFunctions();
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getMethods() {
-		return $this->check->getMethods();
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function checkStrongComparisons() {
-		return true;
-	}
-}
diff --git a/lib/private/app/dependencyanalyzer.php b/lib/private/app/dependencyanalyzer.php
deleted file mode 100644
index 0cf4bc72161..00000000000
--- a/lib/private/app/dependencyanalyzer.php
+++ /dev/null
@@ -1,319 +0,0 @@
-<?php
-/**
- * @author Bernhard Posselt <dev@bernhard-posselt.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App;
-
-use OCP\IL10N;
-
-class DependencyAnalyzer {
-
-	/** @var Platform */
-	private $platform;
-	/** @var \OCP\IL10N */
-	private $l;
-	/** @var array */
-	private $appInfo;
-
-	/**
-	 * @param Platform $platform
-	 * @param \OCP\IL10N $l
-	 */
-	function __construct(Platform $platform, IL10N $l) {
-		$this->platform = $platform;
-		$this->l = $l;
-	}
-
-	/**
-	 * @param array $app
-	 * @returns array of missing dependencies
-	 */
-	public function analyze(array $app) {
-		$this->appInfo = $app;
-		if (isset($app['dependencies'])) {
-			$dependencies = $app['dependencies'];
-		} else {
-			$dependencies = [];
-		}
-
-		return array_merge(
-			$this->analyzePhpVersion($dependencies),
-			$this->analyzeDatabases($dependencies),
-			$this->analyzeCommands($dependencies),
-			$this->analyzeLibraries($dependencies),
-			$this->analyzeOS($dependencies),
-			$this->analyzeOC($dependencies, $app)
-		);
-	}
-
-	/**
-	 * Truncates both versions to the lowest common version, e.g.
-	 * 5.1.2.3 and 5.1 will be turned into 5.1 and 5.1,
-	 * 5.2.6.5 and 5.1 will be turned into 5.2 and 5.1
-	 * @param string $first
-	 * @param string $second
-	 * @return string[] first element is the first version, second element is the
-	 * second version
-	 */
-	private function normalizeVersions($first, $second) {
-		$first = explode('.', $first);
-		$second = explode('.', $second);
-
-		// get both arrays to the same minimum size
-		$length = min(count($second), count($first));
-		$first = array_slice($first, 0, $length);
-		$second = array_slice($second, 0, $length);
-
-		return [implode('.', $first), implode('.', $second)];
-	}
-
-	/**
-	 * Parameters will be normalized and then passed into version_compare
-	 * in the same order they are specified in the method header
-	 * @param string $first
-	 * @param string $second
-	 * @param string $operator
-	 * @return bool result similar to version_compare
-	 */
-	private function compare($first, $second, $operator) {
-		// we cant normalize versions if one of the given parameters is not a
-		// version string but null. In case one parameter is null normalization
-		// will therefore be skipped
-		if ($first !== null && $second !== null) {
-			list($first, $second) = $this->normalizeVersions($first, $second);
-		}
-
-		return version_compare($first, $second, $operator);
-	}
-
-	/**
-	 * Checks if a version is bigger than another version
-	 * @param string $first
-	 * @param string $second
-	 * @return bool true if the first version is bigger than the second
-	 */
-	private function compareBigger($first, $second) {
-		return $this->compare($first, $second, '>');
-	}
-
-	/**
-	 * Checks if a version is smaller than another version
-	 * @param string $first
-	 * @param string $second
-	 * @return bool true if the first version is smaller than the second
-	 */
-	private function compareSmaller($first, $second) {
-		return $this->compare($first, $second, '<');
-	}
-
-	/**
-	 * @param array $dependencies
-	 * @return array
-	 */
-	private function analyzePhpVersion(array $dependencies) {
-		$missing = [];
-		if (isset($dependencies['php']['@attributes']['min-version'])) {
-			$minVersion = $dependencies['php']['@attributes']['min-version'];
-			if ($this->compareSmaller($this->platform->getPhpVersion(), $minVersion)) {
-				$missing[] = (string)$this->l->t('PHP %s or higher is required.', $minVersion);
-			}
-		}
-		if (isset($dependencies['php']['@attributes']['max-version'])) {
-			$maxVersion = $dependencies['php']['@attributes']['max-version'];
-			if ($this->compareBigger($this->platform->getPhpVersion(), $maxVersion)) {
-				$missing[] = (string)$this->l->t('PHP with a version lower than %s is required.', $maxVersion);
-			}
-		}
-		return $missing;
-	}
-
-	/**
-	 * @param array $dependencies
-	 * @return array
-	 */
-	private function analyzeDatabases(array $dependencies) {
-		$missing = [];
-		if (!isset($dependencies['database'])) {
-			return $missing;
-		}
-
-		$supportedDatabases = $dependencies['database'];
-		if (empty($supportedDatabases)) {
-			return $missing;
-		}
-		if (!is_array($supportedDatabases)) {
-			$supportedDatabases = array($supportedDatabases);
-		}
-		$supportedDatabases = array_map(function ($db) {
-			return $this->getValue($db);
-		}, $supportedDatabases);
-		$currentDatabase = $this->platform->getDatabase();
-		if (!in_array($currentDatabase, $supportedDatabases)) {
-			$missing[] = (string)$this->l->t('Following databases are supported: %s', join(', ', $supportedDatabases));
-		}
-		return $missing;
-	}
-
-	/**
-	 * @param array $dependencies
-	 * @return array
-	 */
-	private function analyzeCommands(array $dependencies) {
-		$missing = [];
-		if (!isset($dependencies['command'])) {
-			return $missing;
-		}
-
-		$commands = $dependencies['command'];
-		if (!is_array($commands)) {
-			$commands = array($commands);
-		}
-		$os = $this->platform->getOS();
-		foreach ($commands as $command) {
-			if (isset($command['@attributes']['os']) && $command['@attributes']['os'] !== $os) {
-				continue;
-			}
-			$commandName = $this->getValue($command);
-			if (!$this->platform->isCommandKnown($commandName)) {
-				$missing[] = (string)$this->l->t('The command line tool %s could not be found', $commandName);
-			}
-		}
-		return $missing;
-	}
-
-	/**
-	 * @param array $dependencies
-	 * @return array
-	 */
-	private function analyzeLibraries(array $dependencies) {
-		$missing = [];
-		if (!isset($dependencies['lib'])) {
-			return $missing;
-		}
-
-		$libs = $dependencies['lib'];
-		if (!is_array($libs)) {
-			$libs = array($libs);
-		}
-		foreach ($libs as $lib) {
-			$libName = $this->getValue($lib);
-			$libVersion = $this->platform->getLibraryVersion($libName);
-			if (is_null($libVersion)) {
-				$missing[] = (string)$this->l->t('The library %s is not available.', $libName);
-				continue;
-			}
-
-			if (is_array($lib)) {
-				if (isset($lib['@attributes']['min-version'])) {
-					$minVersion = $lib['@attributes']['min-version'];
-					if ($this->compareSmaller($libVersion, $minVersion)) {
-						$missing[] = (string)$this->l->t('Library %s with a version higher than %s is required - available version %s.',
-							array($libName, $minVersion, $libVersion));
-					}
-				}
-				if (isset($lib['@attributes']['max-version'])) {
-					$maxVersion = $lib['@attributes']['max-version'];
-					if ($this->compareBigger($libVersion, $maxVersion)) {
-						$missing[] = (string)$this->l->t('Library %s with a version lower than %s is required - available version %s.',
-							array($libName, $maxVersion, $libVersion));
-					}
-				}
-			}
-		}
-		return $missing;
-	}
-
-	/**
-	 * @param array $dependencies
-	 * @return array
-	 */
-	private function analyzeOS(array $dependencies) {
-		$missing = [];
-		if (!isset($dependencies['os'])) {
-			return $missing;
-		}
-
-		$oss = $dependencies['os'];
-		if (empty($oss)) {
-			return $missing;
-		}
-		if (is_array($oss)) {
-			$oss = array_map(function ($os) {
-				return $this->getValue($os);
-			}, $oss);
-		} else {
-			$oss = array($oss);
-		}
-		$currentOS = $this->platform->getOS();
-		if (!in_array($currentOS, $oss)) {
-			$missing[] = (string)$this->l->t('Following platforms are supported: %s', join(', ', $oss));
-		}
-		return $missing;
-	}
-
-	/**
-	 * @param array $dependencies
-	 * @param array $appInfo
-	 * @return array
-	 */
-	private function analyzeOC(array $dependencies, array $appInfo) {
-		$missing = [];
-		$minVersion = null;
-		if (isset($dependencies['owncloud']['@attributes']['min-version'])) {
-			$minVersion = $dependencies['owncloud']['@attributes']['min-version'];
-		} elseif (isset($appInfo['requiremin'])) {
-			$minVersion = $appInfo['requiremin'];
-		} elseif (isset($appInfo['require'])) {
-			$minVersion = $appInfo['require'];
-		}
-		$maxVersion = null;
-		if (isset($dependencies['owncloud']['@attributes']['max-version'])) {
-			$maxVersion = $dependencies['owncloud']['@attributes']['max-version'];
-		} elseif (isset($appInfo['requiremax'])) {
-			$maxVersion = $appInfo['requiremax'];
-		}
-
-		if (!is_null($minVersion)) {
-			if ($this->compareSmaller($this->platform->getOcVersion(), $minVersion)) {
-				$missing[] = (string)$this->l->t('ownCloud %s or higher is required.', $minVersion);
-			}
-		}
-		if (!is_null($maxVersion)) {
-			if ($this->compareBigger($this->platform->getOcVersion(), $maxVersion)) {
-				$missing[] = (string)$this->l->t('ownCloud %s or lower is required.', $maxVersion);
-			}
-		}
-		return $missing;
-	}
-
-	/**
-	 * @param $element
-	 * @return mixed
-	 */
-	private function getValue($element) {
-		if (isset($element['@value']))
-			return $element['@value'];
-		return (string)$element;
-	}
-}
diff --git a/lib/private/app/infoparser.php b/lib/private/app/infoparser.php
deleted file mode 100644
index c33e5349f3b..00000000000
--- a/lib/private/app/infoparser.php
+++ /dev/null
@@ -1,164 +0,0 @@
-<?php
-/**
- * @author Andreas Fischer <bantu@owncloud.com>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App;
-
-use OCP\IURLGenerator;
-
-class InfoParser {
-	/**
-	 * @var \OC\HTTPHelper
-	 */
-	private $httpHelper;
-
-	/**
-	 * @var IURLGenerator
-	 */
-	private $urlGenerator;
-
-	/**
-	 * @param \OC\HTTPHelper $httpHelper
-	 * @param IURLGenerator $urlGenerator
-	 */
-	public function __construct(\OC\HTTPHelper $httpHelper, IURLGenerator $urlGenerator) {
-		$this->httpHelper = $httpHelper;
-		$this->urlGenerator = $urlGenerator;
-	}
-
-	/**
-	 * @param string $file the xml file to be loaded
-	 * @return null|array where null is an indicator for an error
-	 */
-	public function parse($file) {
-		if (!file_exists($file)) {
-			return null;
-		}
-
-		libxml_use_internal_errors(true);
-		$loadEntities = libxml_disable_entity_loader(false);
-		$xml = simplexml_load_file($file);
-		libxml_disable_entity_loader($loadEntities);
-		if ($xml == false) {
-			libxml_clear_errors();
-			return null;
-		}
-		$array = $this->xmlToArray($xml);
-		if (is_null($array)) {
-			return null;
-		}
-		if (!array_key_exists('info', $array)) {
-			$array['info'] = array();
-		}
-		if (!array_key_exists('remote', $array)) {
-			$array['remote'] = array();
-		}
-		if (!array_key_exists('public', $array)) {
-			$array['public'] = array();
-		}
-		if (!array_key_exists('types', $array)) {
-			$array['types'] = array();
-		}
-
-		if (array_key_exists('documentation', $array) && is_array($array['documentation'])) {
-			foreach ($array['documentation'] as $key => $url) {
-				// If it is not an absolute URL we assume it is a key
-				// i.e. admin-ldap will get converted to go.php?to=admin-ldap
-				if (!$this->httpHelper->isHTTPURL($url)) {
-					$url = $this->urlGenerator->linkToDocs($url);
-				}
-
-				$array['documentation'][$key] = $url;
-			}
-		}
-		if (array_key_exists('types', $array)) {
-			if (is_array($array['types'])) {
-				foreach ($array['types'] as $type => $v) {
-					unset($array['types'][$type]);
-					if (is_string($type)) {
-						$array['types'][] = $type;
-					}
-				}
-			} else {
-				$array['types'] = array();
-			}
-		}
-
-		return $array;
-	}
-
-	/**
-	 * @param \SimpleXMLElement $xml
-	 * @return array
-	 */
-	function xmlToArray($xml) {
-		if (!$xml->children()) {
-			return (string)$xml;
-		}
-
-		$array = array();
-		foreach ($xml->children() as $element => $node) {
-			$totalElement = count($xml->{$element});
-
-			if (!isset($array[$element])) {
-				$array[$element] = "";
-			}
-			/**
-			 * @var \SimpleXMLElement $node
-			 */
-
-			// Has attributes
-			if ($attributes = $node->attributes()) {
-				$data = array(
-					'@attributes' => array(),
-				);
-				if (!count($node->children())){
-					$value = (string)$node;
-					if (!empty($value)) {
-						$data['@value'] = (string)$node;
-					}
-				} else {
-					$data = array_merge($data, $this->xmlToArray($node));
-				}
-				foreach ($attributes as $attr => $value) {
-					$data['@attributes'][$attr] = (string)$value;
-				}
-
-				if ($totalElement > 1) {
-					$array[$element][] = $data;
-				} else {
-					$array[$element] = $data;
-				}
-				// Just a value
-			} else {
-				if ($totalElement > 1) {
-					$array[$element][] = $this->xmlToArray($node);
-				} else {
-					$array[$element] = $this->xmlToArray($node);
-				}
-			}
-		}
-
-		return $array;
-	}
-}
diff --git a/lib/private/app/platform.php b/lib/private/app/platform.php
deleted file mode 100644
index 1d4c3767121..00000000000
--- a/lib/private/app/platform.php
+++ /dev/null
@@ -1,92 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\App;
-
-use OC_Util;
-use OCP\IConfig;
-
-/**
- * Class Platform
- *
- * This class basically abstracts any kind of information which can be retrieved from the underlying system.
- *
- * @package OC\App
- */
-class Platform {
-
-	/**
-	 * @param IConfig $config
-	 */
-	function __construct(IConfig $config) {
-		$this->config = $config;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getPhpVersion() {
-		return phpversion();
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getOcVersion() {
-		$v = \OCP\Util::getVersion();
-		return join('.', $v);
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getDatabase() {
-		$dbType = $this->config->getSystemValue('dbtype', 'sqlite');
-		if ($dbType === 'sqlite3') {
-			$dbType = 'sqlite';
-		}
-
-		return $dbType;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getOS() {
-		return php_uname('s');
-	}
-
-	/**
-	 * @param $command
-	 * @return bool
-	 */
-	public function isCommandKnown($command) {
-		$path = \OC_Helper::findBinaryPath($command);
-		return ($path !== null);
-	}
-
-	public function getLibraryVersion($name) {
-		$repo = new PlatformRepository();
-		$lib = $repo->findLibrary($name);
-		return $lib;
-	}
-}
diff --git a/lib/private/app/platformrepository.php b/lib/private/app/platformrepository.php
deleted file mode 100644
index 7363b2a44b1..00000000000
--- a/lib/private/app/platformrepository.php
+++ /dev/null
@@ -1,228 +0,0 @@
-<?php
-/**
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\App;
-
-/**
- * Class PlatformRepository
- *
- * Inspired by the composer project - licensed under MIT
- * https://github.com/composer/composer/blob/master/src/Composer/Repository/PlatformRepository.php#L82
- *
- * @package OC\App
- */
-class PlatformRepository {
-	public function __construct() {
-		$this->packages = $this->initialize();
-	}
-
-	protected function initialize() {
-		$loadedExtensions = get_loaded_extensions();
-		$packages = array();
-
-		// Extensions scanning
-		foreach ($loadedExtensions as $name) {
-			if (in_array($name, array('standard', 'Core'))) {
-				continue;
-			}
-
-			$ext = new \ReflectionExtension($name);
-			try {
-				$prettyVersion = $ext->getVersion();
-				$prettyVersion = $this->normalizeVersion($prettyVersion);
-			} catch (\UnexpectedValueException $e) {
-				$prettyVersion = '0';
-				$prettyVersion = $this->normalizeVersion($prettyVersion);
-			}
-
-			$packages[$this->buildPackageName($name)] = $prettyVersion;
-		}
-
-		foreach ($loadedExtensions as $name) {
-			$prettyVersion = null;
-			switch ($name) {
-				case 'curl':
-					$curlVersion = curl_version();
-					$prettyVersion = $curlVersion['version'];
-					break;
-
-				case 'iconv':
-					$prettyVersion = ICONV_VERSION;
-					break;
-
-				case 'intl':
-					$name = 'ICU';
-					if (defined('INTL_ICU_VERSION')) {
-						$prettyVersion = INTL_ICU_VERSION;
-					} else {
-						$reflector = new \ReflectionExtension('intl');
-
-						ob_start();
-						$reflector->info();
-						$output = ob_get_clean();
-
-						preg_match('/^ICU version => (.*)$/m', $output, $matches);
-						$prettyVersion = $matches[1];
-					}
-
-					break;
-
-				case 'libxml':
-					$prettyVersion = LIBXML_DOTTED_VERSION;
-					break;
-
-				case 'openssl':
-					$prettyVersion = preg_replace_callback('{^(?:OpenSSL\s*)?([0-9.]+)([a-z]?).*}', function ($match) {
-						return $match[1] . (empty($match[2]) ? '' : '.' . (ord($match[2]) - 96));
-					}, OPENSSL_VERSION_TEXT);
-					break;
-
-				case 'pcre':
-					$prettyVersion = preg_replace('{^(\S+).*}', '$1', PCRE_VERSION);
-					break;
-
-				case 'uuid':
-					$prettyVersion = phpversion('uuid');
-					break;
-
-				case 'xsl':
-					$prettyVersion = LIBXSLT_DOTTED_VERSION;
-					break;
-
-				default:
-					// None handled extensions have no special cases, skip
-					continue 2;
-			}
-
-			try {
-				$prettyVersion = $this->normalizeVersion($prettyVersion);
-			} catch (\UnexpectedValueException $e) {
-				continue;
-			}
-
-			$packages[$this->buildPackageName($name)] = $prettyVersion;
-		}
-
-		return $packages;
-	}
-
-	private function buildPackageName($name) {
-		return str_replace(' ', '-', $name);
-	}
-
-	/**
-	 * @param $name
-	 * @return string
-	 */
-	public function findLibrary($name) {
-		$extName = $this->buildPackageName($name);
-		if (isset($this->packages[$extName])) {
-			return $this->packages[$extName];
-		}
-		return null;
-	}
-
-	private static $modifierRegex = '[._-]?(?:(stable|beta|b|RC|alpha|a|patch|pl|p)(?:[.-]?(\d+))?)?([.-]?dev)?';
-
-	/**
-	 * Normalizes a version string to be able to perform comparisons on it
-	 *
-	 * https://github.com/composer/composer/blob/master/src/Composer/Package/Version/VersionParser.php#L94
-	 *
-	 * @param string $version
-	 * @param string $fullVersion optional complete version string to give more context
-	 * @throws \UnexpectedValueException
-	 * @return string
-	 */
-	public function normalizeVersion($version, $fullVersion = null) {
-		$version = trim($version);
-		if (null === $fullVersion) {
-			$fullVersion = $version;
-		}
-		// ignore aliases and just assume the alias is required instead of the source
-		if (preg_match('{^([^,\s]+) +as +([^,\s]+)$}', $version, $match)) {
-			$version = $match[1];
-		}
-		// match master-like branches
-		if (preg_match('{^(?:dev-)?(?:master|trunk|default)$}i', $version)) {
-			return '9999999-dev';
-		}
-		if ('dev-' === strtolower(substr($version, 0, 4))) {
-			return 'dev-' . substr($version, 4);
-		}
-		// match classical versioning
-		if (preg_match('{^v?(\d{1,3})(\.\d+)?(\.\d+)?(\.\d+)?' . self::$modifierRegex . '$}i', $version, $matches)) {
-			$version = $matches[1]
-				. (!empty($matches[2]) ? $matches[2] : '.0')
-				. (!empty($matches[3]) ? $matches[3] : '.0')
-				. (!empty($matches[4]) ? $matches[4] : '.0');
-			$index = 5;
-		} elseif (preg_match('{^v?(\d{4}(?:[.:-]?\d{2}){1,6}(?:[.:-]?\d{1,3})?)' . self::$modifierRegex . '$}i', $version, $matches)) { // match date-based versioning
-			$version = preg_replace('{\D}', '-', $matches[1]);
-			$index = 2;
-		} elseif (preg_match('{^v?(\d{4,})(\.\d+)?(\.\d+)?(\.\d+)?' . self::$modifierRegex . '$}i', $version, $matches)) {
-			$version = $matches[1]
-				. (!empty($matches[2]) ? $matches[2] : '.0')
-				. (!empty($matches[3]) ? $matches[3] : '.0')
-				. (!empty($matches[4]) ? $matches[4] : '.0');
-			$index = 5;
-		}
-		// add version modifiers if a version was matched
-		if (isset($index)) {
-			if (!empty($matches[$index])) {
-				if ('stable' === $matches[$index]) {
-					return $version;
-				}
-				$version .= '-' . $this->expandStability($matches[$index]) . (!empty($matches[$index + 1]) ? $matches[$index + 1] : '');
-			}
-			if (!empty($matches[$index + 2])) {
-				$version .= '-dev';
-			}
-			return $version;
-		}
-		$extraMessage = '';
-		if (preg_match('{ +as +' . preg_quote($version) . '$}', $fullVersion)) {
-			$extraMessage = ' in "' . $fullVersion . '", the alias must be an exact version';
-		} elseif (preg_match('{^' . preg_quote($version) . ' +as +}', $fullVersion)) {
-			$extraMessage = ' in "' . $fullVersion . '", the alias source must be an exact version, if it is a branch name you should prefix it with dev-';
-		}
-		throw new \UnexpectedValueException('Invalid version string "' . $version . '"' . $extraMessage);
-	}
-
-	/**
-	 * @param string $stability
-	 */
-	private function expandStability($stability) {
-		$stability = strtolower($stability);
-		switch ($stability) {
-			case 'a':
-				return 'alpha';
-			case 'b':
-				return 'beta';
-			case 'p':
-			case 'pl':
-				return 'patch';
-			case 'rc':
-				return 'RC';
-			default:
-				return $stability;
-		}
-	}
-}