nextcloud / server

lib/private/Route/Router.php

Indentation +399 added lines, -399 removed lines

@@ -46,403 +46,403 @@
 use Symfony\Component\Routing\RouteCollection;
 
 class Router implements IRouter {
-	/** @var RouteCollection[] */
-	protected $collections = [];
-	/** @var null|RouteCollection */
-	protected $collection = null;
-	/** @var null|string */
-	protected $collectionName = null;
-	/** @var null|RouteCollection */
-	protected $root = null;
-	/** @var null|UrlGenerator */
-	protected $generator = null;
-	/** @var string[] */
-	protected $routingFiles;
-	/** @var bool */
-	protected $loaded = false;
-	/** @var array */
-	protected $loadedApps = [];
-	/** @var ILogger */
-	protected $logger;
-	/** @var RequestContext */
-	protected $context;
-
-	/**
-	 * @param ILogger $logger
-	 */
-	public function __construct(ILogger $logger) {
-		$this->logger = $logger;
-		$baseUrl = \OC::$WEBROOT;
-		if (!(\OC::$server->getConfig()->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true')) {
-			$baseUrl .= '/index.php';
-		}
-		if (!\OC::$CLI && isset($_SERVER['REQUEST_METHOD'])) {
-			$method = $_SERVER['REQUEST_METHOD'];
-		} else {
-			$method = 'GET';
-		}
-		$request = \OC::$server->getRequest();
-		$host = $request->getServerHost();
-		$schema = $request->getServerProtocol();
-		$this->context = new RequestContext($baseUrl, $method, $host, $schema);
-		// TODO cache
-		$this->root = $this->getCollection('root');
-	}
-
-	/**
-	 * Get the files to load the routes from
-	 *
-	 * @return string[]
-	 */
-	public function getRoutingFiles() {
-		if (!isset($this->routingFiles)) {
-			$this->routingFiles = [];
-			foreach (\OC_APP::getEnabledApps() as $app) {
-				$appPath = \OC_App::getAppPath($app);
-				if ($appPath !== false) {
-					$file = $appPath . '/appinfo/routes.php';
-					if (file_exists($file)) {
-						$this->routingFiles[$app] = $file;
-					}
-				}
-			}
-		}
-		return $this->routingFiles;
-	}
-
-	/**
-	 * Loads the routes
-	 *
-	 * @param null|string $app
-	 */
-	public function loadRoutes($app = null) {
-		if (is_string($app)) {
-			$app = \OC_App::cleanAppId($app);
-		}
-
-		$requestedApp = $app;
-		if ($this->loaded) {
-			return;
-		}
-		if (is_null($app)) {
-			$this->loaded = true;
-			$routingFiles = $this->getRoutingFiles();
-		} else {
-			if (isset($this->loadedApps[$app])) {
-				return;
-			}
-			$file = \OC_App::getAppPath($app) . '/appinfo/routes.php';
-			if ($file !== false && file_exists($file)) {
-				$routingFiles = [$app => $file];
-			} else {
-				$routingFiles = [];
-			}
-		}
-		\OC::$server->getEventLogger()->start('loadroutes' . $requestedApp, 'Loading Routes');
-		foreach ($routingFiles as $app => $file) {
-			if (!isset($this->loadedApps[$app])) {
-				if (!\OC_App::isAppLoaded($app)) {
-					// app MUST be loaded before app routes
-					// try again next time loadRoutes() is called
-					$this->loaded = false;
-					continue;
-				}
-				$this->loadedApps[$app] = true;
-				$this->useCollection($app);
-				$this->requireRouteFile($file, $app);
-				$collection = $this->getCollection($app);
-				$this->root->addCollection($collection);
-
-				// Also add the OCS collection
-				$collection = $this->getCollection($app.'.ocs');
-				$collection->addPrefix('/ocsapp');
-				$this->root->addCollection($collection);
-			}
-		}
-		if (!isset($this->loadedApps['core'])) {
-			$this->loadedApps['core'] = true;
-			$this->useCollection('root');
-			require_once __DIR__ . '/../../../core/routes.php';
-
-			// Also add the OCS collection
-			$collection = $this->getCollection('root.ocs');
-			$collection->addPrefix('/ocsapp');
-			$this->root->addCollection($collection);
-		}
-		if ($this->loaded) {
-			$collection = $this->getCollection('ocs');
-			$collection->addPrefix('/ocs');
-			$this->root->addCollection($collection);
-		}
-		\OC::$server->getEventLogger()->end('loadroutes' . $requestedApp);
-	}
-
-	/**
-	 * @param string $name
-	 * @return \Symfony\Component\Routing\RouteCollection
-	 */
-	protected function getCollection($name) {
-		if (!isset($this->collections[$name])) {
-			$this->collections[$name] = new RouteCollection();
-		}
-		return $this->collections[$name];
-	}
-
-	/**
-	 * Sets the collection to use for adding routes
-	 *
-	 * @param string $name Name of the collection to use.
-	 * @return void
-	 */
-	public function useCollection($name) {
-		$this->collection = $this->getCollection($name);
-		$this->collectionName = $name;
-	}
-
-	/**
-	 * returns the current collection name in use for adding routes
-	 *
-	 * @return string the collection name
-	 */
-	public function getCurrentCollection() {
-		return $this->collectionName;
-	}
-
-
-	/**
-	 * Create a \OC\Route\Route.
-	 *
-	 * @param string $name Name of the route to create.
-	 * @param string $pattern The pattern to match
-	 * @param array $defaults An array of default parameter values
-	 * @param array $requirements An array of requirements for parameters (regexes)
-	 * @return \OC\Route\Route
-	 */
-	public function create($name,
-						   $pattern,
-						   array $defaults = [],
-						   array $requirements = []) {
-		$route = new Route($pattern, $defaults, $requirements);
-		$this->collection->add($name, $route);
-		return $route;
-	}
-
-	/**
-	 * Find the route matching $url
-	 *
-	 * @param string $url The url to find
-	 * @throws \Exception
-	 * @return array
-	 */
-	public function findMatchingRoute(string $url): array {
-		if (substr($url, 0, 6) === '/apps/') {
-			// empty string / 'apps' / $app / rest of the route
-			list(, , $app,) = explode('/', $url, 4);
-
-			$app = \OC_App::cleanAppId($app);
-			\OC::$REQUESTEDAPP = $app;
-			$this->loadRoutes($app);
-		} elseif (substr($url, 0, 13) === '/ocsapp/apps/') {
-			// empty string / 'ocsapp' / 'apps' / $app / rest of the route
-			list(, , , $app,) = explode('/', $url, 5);
-
-			$app = \OC_App::cleanAppId($app);
-			\OC::$REQUESTEDAPP = $app;
-			$this->loadRoutes($app);
-		} elseif (substr($url, 0, 10) === '/settings/') {
-			$this->loadRoutes('settings');
-		} elseif (substr($url, 0, 6) === '/core/') {
-			\OC::$REQUESTEDAPP = $url;
-			if (!\OC::$server->getConfig()->getSystemValueBool('maintenance') && !Util::needUpgrade()) {
-				\OC_App::loadApps();
-			}
-			$this->loadRoutes('core');
-		} else {
-			$this->loadRoutes();
-		}
-
-		$matcher = new UrlMatcher($this->root, $this->context);
-		try {
-			$parameters = $matcher->match($url);
-		} catch (ResourceNotFoundException $e) {
-			if (substr($url, -1) !== '/') {
-				// We allow links to apps/files? for backwards compatibility reasons
-				// However, since Symfony does not allow empty route names, the route
-				// we need to match is '/', so we need to append the '/' here.
-				try {
-					$parameters = $matcher->match($url . '/');
-				} catch (ResourceNotFoundException $newException) {
-					// If we still didn't match a route, we throw the original exception
-					throw $e;
-				}
-			} else {
-				throw $e;
-			}
-		}
-
-		return $parameters;
-	}
-
-	/**
-	 * Find and execute the route matching $url
-	 *
-	 * @param string $url The url to find
-	 * @throws \Exception
-	 * @return void
-	 */
-	public function match($url) {
-		$parameters = $this->findMatchingRoute($url);
-
-		\OC::$server->getEventLogger()->start('run_route', 'Run route');
-		if (isset($parameters['caller'])) {
-			$caller = $parameters['caller'];
-			unset($parameters['caller']);
-			unset($parameters['action']);
-			$application = $this->getApplicationClass($caller[0]);
-			\OC\AppFramework\App::main($caller[1], $caller[2], $application->getContainer(), $parameters);
-		} elseif (isset($parameters['action'])) {
-			$action = $parameters['action'];
-			if (!is_callable($action)) {
-				throw new \Exception('not a callable action');
-			}
-			unset($parameters['action']);
-			unset($parameters['caller']);
-			call_user_func($action, $parameters);
-		} elseif (isset($parameters['file'])) {
-			include $parameters['file'];
-		} else {
-			throw new \Exception('no action available');
-		}
-		\OC::$server->getEventLogger()->end('run_route');
-	}
-
-	/**
-	 * Get the url generator
-	 *
-	 * @return \Symfony\Component\Routing\Generator\UrlGenerator
-	 *
-	 */
-	public function getGenerator() {
-		if (null !== $this->generator) {
-			return $this->generator;
-		}
-
-		return $this->generator = new UrlGenerator($this->root, $this->context);
-	}
-
-	/**
-	 * Generate url based on $name and $parameters
-	 *
-	 * @param string $name Name of the route to use.
-	 * @param array $parameters Parameters for the route
-	 * @param bool $absolute
-	 * @return string
-	 */
-	public function generate($name,
-							 $parameters = [],
-							 $absolute = false) {
-		$referenceType = UrlGenerator::ABSOLUTE_URL;
-		if ($absolute === false) {
-			$referenceType = UrlGenerator::ABSOLUTE_PATH;
-		}
-		$name = $this->fixLegacyRootName($name);
-		if (strpos($name, '.') !== false) {
-			list($appName, $other) = explode('.', $name, 3);
-			// OCS routes are prefixed with "ocs."
-			if ($appName === 'ocs') {
-				$appName = $other;
-			}
-			$this->loadRoutes($appName);
-			try {
-				return $this->getGenerator()->generate($name, $parameters, $referenceType);
-			} catch (RouteNotFoundException $e) {
-			}
-		}
-
-		// Fallback load all routes
-		$this->loadRoutes();
-		try {
-			return $this->getGenerator()->generate($name, $parameters, $referenceType);
-		} catch (RouteNotFoundException $e) {
-			$this->logger->logException($e, ['level' => ILogger::INFO]);
-			return '';
-		}
-	}
-
-	protected function fixLegacyRootName(string $routeName): string {
-		if ($routeName === 'files.viewcontroller.showFile') {
-			return 'files.View.showFile';
-		}
-		if ($routeName === 'files_sharing.sharecontroller.showShare') {
-			return 'files_sharing.Share.showShare';
-		}
-		if ($routeName === 'files_sharing.sharecontroller.showAuthenticate') {
-			return 'files_sharing.Share.showAuthenticate';
-		}
-		if ($routeName === 'files_sharing.sharecontroller.authenticate') {
-			return 'files_sharing.Share.authenticate';
-		}
-		if ($routeName === 'files_sharing.sharecontroller.downloadShare') {
-			return 'files_sharing.Share.downloadShare';
-		}
-		if ($routeName === 'files_sharing.publicpreview.directLink') {
-			return 'files_sharing.PublicPreview.directLink';
-		}
-		if ($routeName === 'cloud_federation_api.requesthandlercontroller.addShare') {
-			return 'cloud_federation_api.RequestHandler.addShare';
-		}
-		if ($routeName === 'cloud_federation_api.requesthandlercontroller.receiveNotification') {
-			return 'cloud_federation_api.RequestHandler.receiveNotification';
-		}
-		return $routeName;
-	}
-
-	/**
-	 * To isolate the variable scope used inside the $file it is required in it's own method
-	 *
-	 * @param string $file the route file location to include
-	 * @param string $appName
-	 */
-	private function requireRouteFile($file, $appName) {
-		$this->setupRoutes(include_once $file, $appName);
-	}
-
-
-	/**
-	 * If a routes.php file returns an array, try to set up the application and
-	 * register the routes for the app. The application class will be chosen by
-	 * camelcasing the appname, e.g.: my_app will be turned into
-	 * \OCA\MyApp\AppInfo\Application. If that class does not exist, a default
-	 * App will be intialized. This makes it optional to ship an
-	 * appinfo/application.php by using the built in query resolver
-	 *
-	 * @param array $routes the application routes
-	 * @param string $appName the name of the app.
-	 */
-	private function setupRoutes($routes, $appName) {
-		if (is_array($routes)) {
-			$routeParser = new RouteParser();
-
-			$defaultRoutes = $routeParser->parseDefaultRoutes($routes, $appName);
-			$ocsRoutes = $routeParser->parseOCSRoutes($routes, $appName);
-
-			$this->root->addCollection($defaultRoutes);
-			$ocsRoutes->addPrefix('/ocsapp');
-			$this->root->addCollection($ocsRoutes);
-		}
-	}
-
-	private function getApplicationClass(string $appName) {
-		$appNameSpace = App::buildAppNamespace($appName);
-
-		$applicationClassName = $appNameSpace . '\\AppInfo\\Application';
-
-		if (class_exists($applicationClassName)) {
-			$application = \OC::$server->query($applicationClassName);
-		} else {
-			$application = new App($appName);
-		}
-
-		return $application;
-	}
+    /** @var RouteCollection[] */
+    protected $collections = [];
+    /** @var null|RouteCollection */
+    protected $collection = null;
+    /** @var null|string */
+    protected $collectionName = null;
+    /** @var null|RouteCollection */
+    protected $root = null;
+    /** @var null|UrlGenerator */
+    protected $generator = null;
+    /** @var string[] */
+    protected $routingFiles;
+    /** @var bool */
+    protected $loaded = false;
+    /** @var array */
+    protected $loadedApps = [];
+    /** @var ILogger */
+    protected $logger;
+    /** @var RequestContext */
+    protected $context;
+
+    /**
+     * @param ILogger $logger
+     */
+    public function __construct(ILogger $logger) {
+        $this->logger = $logger;
+        $baseUrl = \OC::$WEBROOT;
+        if (!(\OC::$server->getConfig()->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true')) {
+            $baseUrl .= '/index.php';
+        }
+        if (!\OC::$CLI && isset($_SERVER['REQUEST_METHOD'])) {
+            $method = $_SERVER['REQUEST_METHOD'];
+        } else {
+            $method = 'GET';
+        }
+        $request = \OC::$server->getRequest();
+        $host = $request->getServerHost();
+        $schema = $request->getServerProtocol();
+        $this->context = new RequestContext($baseUrl, $method, $host, $schema);
+        // TODO cache
+        $this->root = $this->getCollection('root');
+    }
+
+    /**
+     * Get the files to load the routes from
+     *
+     * @return string[]
+     */
+    public function getRoutingFiles() {
+        if (!isset($this->routingFiles)) {
+            $this->routingFiles = [];
+            foreach (\OC_APP::getEnabledApps() as $app) {
+                $appPath = \OC_App::getAppPath($app);
+                if ($appPath !== false) {
+                    $file = $appPath . '/appinfo/routes.php';
+                    if (file_exists($file)) {
+                        $this->routingFiles[$app] = $file;
+                    }
+                }
+            }
+        }
+        return $this->routingFiles;
+    }
+
+    /**
+     * Loads the routes
+     *
+     * @param null|string $app
+     */
+    public function loadRoutes($app = null) {
+        if (is_string($app)) {
+            $app = \OC_App::cleanAppId($app);
+        }
+
+        $requestedApp = $app;
+        if ($this->loaded) {
+            return;
+        }
+        if (is_null($app)) {
+            $this->loaded = true;
+            $routingFiles = $this->getRoutingFiles();
+        } else {
+            if (isset($this->loadedApps[$app])) {
+                return;
+            }
+            $file = \OC_App::getAppPath($app) . '/appinfo/routes.php';
+            if ($file !== false && file_exists($file)) {
+                $routingFiles = [$app => $file];
+            } else {
+                $routingFiles = [];
+            }
+        }
+        \OC::$server->getEventLogger()->start('loadroutes' . $requestedApp, 'Loading Routes');
+        foreach ($routingFiles as $app => $file) {
+            if (!isset($this->loadedApps[$app])) {
+                if (!\OC_App::isAppLoaded($app)) {
+                    // app MUST be loaded before app routes
+                    // try again next time loadRoutes() is called
+                    $this->loaded = false;
+                    continue;
+                }
+                $this->loadedApps[$app] = true;
+                $this->useCollection($app);
+                $this->requireRouteFile($file, $app);
+                $collection = $this->getCollection($app);
+                $this->root->addCollection($collection);
+
+                // Also add the OCS collection
+                $collection = $this->getCollection($app.'.ocs');
+                $collection->addPrefix('/ocsapp');
+                $this->root->addCollection($collection);
+            }
+        }
+        if (!isset($this->loadedApps['core'])) {
+            $this->loadedApps['core'] = true;
+            $this->useCollection('root');
+            require_once __DIR__ . '/../../../core/routes.php';
+
+            // Also add the OCS collection
+            $collection = $this->getCollection('root.ocs');
+            $collection->addPrefix('/ocsapp');
+            $this->root->addCollection($collection);
+        }
+        if ($this->loaded) {
+            $collection = $this->getCollection('ocs');
+            $collection->addPrefix('/ocs');
+            $this->root->addCollection($collection);
+        }
+        \OC::$server->getEventLogger()->end('loadroutes' . $requestedApp);
+    }
+
+    /**
+     * @param string $name
+     * @return \Symfony\Component\Routing\RouteCollection
+     */
+    protected function getCollection($name) {
+        if (!isset($this->collections[$name])) {
+            $this->collections[$name] = new RouteCollection();
+        }
+        return $this->collections[$name];
+    }
+
+    /**
+     * Sets the collection to use for adding routes
+     *
+     * @param string $name Name of the collection to use.
+     * @return void
+     */
+    public function useCollection($name) {
+        $this->collection = $this->getCollection($name);
+        $this->collectionName = $name;
+    }
+
+    /**
+     * returns the current collection name in use for adding routes
+     *
+     * @return string the collection name
+     */
+    public function getCurrentCollection() {
+        return $this->collectionName;
+    }
+
+
+    /**
+     * Create a \OC\Route\Route.
+     *
+     * @param string $name Name of the route to create.
+     * @param string $pattern The pattern to match
+     * @param array $defaults An array of default parameter values
+     * @param array $requirements An array of requirements for parameters (regexes)
+     * @return \OC\Route\Route
+     */
+    public function create($name,
+                            $pattern,
+                            array $defaults = [],
+                            array $requirements = []) {
+        $route = new Route($pattern, $defaults, $requirements);
+        $this->collection->add($name, $route);
+        return $route;
+    }
+
+    /**
+     * Find the route matching $url
+     *
+     * @param string $url The url to find
+     * @throws \Exception
+     * @return array
+     */
+    public function findMatchingRoute(string $url): array {
+        if (substr($url, 0, 6) === '/apps/') {
+            // empty string / 'apps' / $app / rest of the route
+            list(, , $app,) = explode('/', $url, 4);
+
+            $app = \OC_App::cleanAppId($app);
+            \OC::$REQUESTEDAPP = $app;
+            $this->loadRoutes($app);
+        } elseif (substr($url, 0, 13) === '/ocsapp/apps/') {
+            // empty string / 'ocsapp' / 'apps' / $app / rest of the route
+            list(, , , $app,) = explode('/', $url, 5);
+
+            $app = \OC_App::cleanAppId($app);
+            \OC::$REQUESTEDAPP = $app;
+            $this->loadRoutes($app);
+        } elseif (substr($url, 0, 10) === '/settings/') {
+            $this->loadRoutes('settings');
+        } elseif (substr($url, 0, 6) === '/core/') {
+            \OC::$REQUESTEDAPP = $url;
+            if (!\OC::$server->getConfig()->getSystemValueBool('maintenance') && !Util::needUpgrade()) {
+                \OC_App::loadApps();
+            }
+            $this->loadRoutes('core');
+        } else {
+            $this->loadRoutes();
+        }
+
+        $matcher = new UrlMatcher($this->root, $this->context);
+        try {
+            $parameters = $matcher->match($url);
+        } catch (ResourceNotFoundException $e) {
+            if (substr($url, -1) !== '/') {
+                // We allow links to apps/files? for backwards compatibility reasons
+                // However, since Symfony does not allow empty route names, the route
+                // we need to match is '/', so we need to append the '/' here.
+                try {
+                    $parameters = $matcher->match($url . '/');
+                } catch (ResourceNotFoundException $newException) {
+                    // If we still didn't match a route, we throw the original exception
+                    throw $e;
+                }
+            } else {
+                throw $e;
+            }
+        }
+
+        return $parameters;
+    }
+
+    /**
+     * Find and execute the route matching $url
+     *
+     * @param string $url The url to find
+     * @throws \Exception
+     * @return void
+     */
+    public function match($url) {
+        $parameters = $this->findMatchingRoute($url);
+
+        \OC::$server->getEventLogger()->start('run_route', 'Run route');
+        if (isset($parameters['caller'])) {
+            $caller = $parameters['caller'];
+            unset($parameters['caller']);
+            unset($parameters['action']);
+            $application = $this->getApplicationClass($caller[0]);
+            \OC\AppFramework\App::main($caller[1], $caller[2], $application->getContainer(), $parameters);
+        } elseif (isset($parameters['action'])) {
+            $action = $parameters['action'];
+            if (!is_callable($action)) {
+                throw new \Exception('not a callable action');
+            }
+            unset($parameters['action']);
+            unset($parameters['caller']);
+            call_user_func($action, $parameters);
+        } elseif (isset($parameters['file'])) {
+            include $parameters['file'];
+        } else {
+            throw new \Exception('no action available');
+        }
+        \OC::$server->getEventLogger()->end('run_route');
+    }
+
+    /**
+     * Get the url generator
+     *
+     * @return \Symfony\Component\Routing\Generator\UrlGenerator
+     *
+     */
+    public function getGenerator() {
+        if (null !== $this->generator) {
+            return $this->generator;
+        }
+
+        return $this->generator = new UrlGenerator($this->root, $this->context);
+    }
+
+    /**
+     * Generate url based on $name and $parameters
+     *
+     * @param string $name Name of the route to use.
+     * @param array $parameters Parameters for the route
+     * @param bool $absolute
+     * @return string
+     */
+    public function generate($name,
+                                $parameters = [],
+                                $absolute = false) {
+        $referenceType = UrlGenerator::ABSOLUTE_URL;
+        if ($absolute === false) {
+            $referenceType = UrlGenerator::ABSOLUTE_PATH;
+        }
+        $name = $this->fixLegacyRootName($name);
+        if (strpos($name, '.') !== false) {
+            list($appName, $other) = explode('.', $name, 3);
+            // OCS routes are prefixed with "ocs."
+            if ($appName === 'ocs') {
+                $appName = $other;
+            }
+            $this->loadRoutes($appName);
+            try {
+                return $this->getGenerator()->generate($name, $parameters, $referenceType);
+            } catch (RouteNotFoundException $e) {
+            }
+        }
+
+        // Fallback load all routes
+        $this->loadRoutes();
+        try {
+            return $this->getGenerator()->generate($name, $parameters, $referenceType);
+        } catch (RouteNotFoundException $e) {
+            $this->logger->logException($e, ['level' => ILogger::INFO]);
+            return '';
+        }
+    }
+
+    protected function fixLegacyRootName(string $routeName): string {
+        if ($routeName === 'files.viewcontroller.showFile') {
+            return 'files.View.showFile';
+        }
+        if ($routeName === 'files_sharing.sharecontroller.showShare') {
+            return 'files_sharing.Share.showShare';
+        }
+        if ($routeName === 'files_sharing.sharecontroller.showAuthenticate') {
+            return 'files_sharing.Share.showAuthenticate';
+        }
+        if ($routeName === 'files_sharing.sharecontroller.authenticate') {
+            return 'files_sharing.Share.authenticate';
+        }
+        if ($routeName === 'files_sharing.sharecontroller.downloadShare') {
+            return 'files_sharing.Share.downloadShare';
+        }
+        if ($routeName === 'files_sharing.publicpreview.directLink') {
+            return 'files_sharing.PublicPreview.directLink';
+        }
+        if ($routeName === 'cloud_federation_api.requesthandlercontroller.addShare') {
+            return 'cloud_federation_api.RequestHandler.addShare';
+        }
+        if ($routeName === 'cloud_federation_api.requesthandlercontroller.receiveNotification') {
+            return 'cloud_federation_api.RequestHandler.receiveNotification';
+        }
+        return $routeName;
+    }
+
+    /**
+     * To isolate the variable scope used inside the $file it is required in it's own method
+     *
+     * @param string $file the route file location to include
+     * @param string $appName
+     */
+    private function requireRouteFile($file, $appName) {
+        $this->setupRoutes(include_once $file, $appName);
+    }
+
+
+    /**
+     * If a routes.php file returns an array, try to set up the application and
+     * register the routes for the app. The application class will be chosen by
+     * camelcasing the appname, e.g.: my_app will be turned into
+     * \OCA\MyApp\AppInfo\Application. If that class does not exist, a default
+     * App will be intialized. This makes it optional to ship an
+     * appinfo/application.php by using the built in query resolver
+     *
+     * @param array $routes the application routes
+     * @param string $appName the name of the app.
+     */
+    private function setupRoutes($routes, $appName) {
+        if (is_array($routes)) {
+            $routeParser = new RouteParser();
+
+            $defaultRoutes = $routeParser->parseDefaultRoutes($routes, $appName);
+            $ocsRoutes = $routeParser->parseOCSRoutes($routes, $appName);
+
+            $this->root->addCollection($defaultRoutes);
+            $ocsRoutes->addPrefix('/ocsapp');
+            $this->root->addCollection($ocsRoutes);
+        }
+    }
+
+    private function getApplicationClass(string $appName) {
+        $appNameSpace = App::buildAppNamespace($appName);
+
+        $applicationClassName = $appNameSpace . '\\AppInfo\\Application';
+
+        if (class_exists($applicationClassName)) {
+            $application = \OC::$server->query($applicationClassName);
+        } else {
+            $application = new App($appName);
+        }
+
+        return $application;
+    }
 }