nextcloud / server

apps/dav/lib/Connector/Sabre/FilesPlugin.php

Unused Use Statements -1 removed lines

@@ -31,7 +31,6 @@
 namespace OCA\DAV\Connector\Sabre;
 
 use OC\Files\View;
-use OCA\DAV\Upload\FutureFile;
 use OCP\Files\ForbiddenException;
 use OCP\IPreview;
 use Sabre\DAV\Exception\Forbidden;

Indentation +383 added lines, -383 removed lines

@@ -49,388 +49,388 @@
 
 class FilesPlugin extends ServerPlugin {
 
-	// namespace
-	const NS_OWNCLOUD = 'http://owncloud.org/ns';
-	const NS_NEXTCLOUD = 'http://nextcloud.org/ns';
-	const FILEID_PROPERTYNAME = '{http://owncloud.org/ns}id';
-	const INTERNAL_FILEID_PROPERTYNAME = '{http://owncloud.org/ns}fileid';
-	const PERMISSIONS_PROPERTYNAME = '{http://owncloud.org/ns}permissions';
-	const SHARE_PERMISSIONS_PROPERTYNAME = '{http://open-collaboration-services.org/ns}share-permissions';
-	const DOWNLOADURL_PROPERTYNAME = '{http://owncloud.org/ns}downloadURL';
-	const SIZE_PROPERTYNAME = '{http://owncloud.org/ns}size';
-	const GETETAG_PROPERTYNAME = '{DAV:}getetag';
-	const LASTMODIFIED_PROPERTYNAME = '{DAV:}lastmodified';
-	const OWNER_ID_PROPERTYNAME = '{http://owncloud.org/ns}owner-id';
-	const OWNER_DISPLAY_NAME_PROPERTYNAME = '{http://owncloud.org/ns}owner-display-name';
-	const CHECKSUMS_PROPERTYNAME = '{http://owncloud.org/ns}checksums';
-	const DATA_FINGERPRINT_PROPERTYNAME = '{http://owncloud.org/ns}data-fingerprint';
-	const HAS_PREVIEW_PROPERTYNAME = '{http://nextcloud.org/ns}has-preview';
-
-	/**
-	 * Reference to main server object
-	 *
-	 * @var \Sabre\DAV\Server
-	 */
-	private $server;
-
-	/**
-	 * @var Tree
-	 */
-	private $tree;
-
-	/**
-	 * Whether this is public webdav.
-	 * If true, some returned information will be stripped off.
-	 *
-	 * @var bool
-	 */
-	private $isPublic;
-
-	/**
-	 * @var View
-	 */
-	private $fileView;
-
-	/**
-	 * @var bool
-	 */
-	private $downloadAttachment;
-
-	/**
-	 * @var IConfig
-	 */
-	private $config;
-
-	/**
-	 * @var IRequest
-	 */
-	private $request;
-
-	/**
-	 * @var IPreview
-	 */
-	private $previewManager;
-
-	/**
-	 * @param Tree $tree
-	 * @param View $view
-	 * @param IConfig $config
-	 * @param IRequest $request
-	 * @param IPreview $previewManager
-	 * @param bool $isPublic
-	 * @param bool $downloadAttachment
-	 */
-	public function __construct(Tree $tree,
-								View $view,
-								IConfig $config,
-								IRequest $request,
-								IPreview $previewManager,
-								$isPublic = false,
-								$downloadAttachment = true) {
-		$this->tree = $tree;
-		$this->fileView = $view;
-		$this->config = $config;
-		$this->request = $request;
-		$this->isPublic = $isPublic;
-		$this->downloadAttachment = $downloadAttachment;
-		$this->previewManager = $previewManager;
-	}
-
-	/**
-	 * This initializes the plugin.
-	 *
-	 * This function is called by \Sabre\DAV\Server, after
-	 * addPlugin is called.
-	 *
-	 * This method should set up the required event subscriptions.
-	 *
-	 * @param \Sabre\DAV\Server $server
-	 * @return void
-	 */
-	public function initialize(\Sabre\DAV\Server $server) {
-
-		$server->xml->namespaceMap[self::NS_OWNCLOUD] = 'oc';
-		$server->xml->namespaceMap[self::NS_NEXTCLOUD] = 'nc';
-		$server->protectedProperties[] = self::FILEID_PROPERTYNAME;
-		$server->protectedProperties[] = self::INTERNAL_FILEID_PROPERTYNAME;
-		$server->protectedProperties[] = self::PERMISSIONS_PROPERTYNAME;
-		$server->protectedProperties[] = self::SHARE_PERMISSIONS_PROPERTYNAME;
-		$server->protectedProperties[] = self::SIZE_PROPERTYNAME;
-		$server->protectedProperties[] = self::DOWNLOADURL_PROPERTYNAME;
-		$server->protectedProperties[] = self::OWNER_ID_PROPERTYNAME;
-		$server->protectedProperties[] = self::OWNER_DISPLAY_NAME_PROPERTYNAME;
-		$server->protectedProperties[] = self::CHECKSUMS_PROPERTYNAME;
-		$server->protectedProperties[] = self::DATA_FINGERPRINT_PROPERTYNAME;
-		$server->protectedProperties[] = self::HAS_PREVIEW_PROPERTYNAME;
-
-		// normally these cannot be changed (RFC4918), but we want them modifiable through PROPPATCH
-		$allowedProperties = ['{DAV:}getetag'];
-		$server->protectedProperties = array_diff($server->protectedProperties, $allowedProperties);
-
-		$this->server = $server;
-		$this->server->on('propFind', array($this, 'handleGetProperties'));
-		$this->server->on('propPatch', array($this, 'handleUpdateProperties'));
-		$this->server->on('afterBind', array($this, 'sendFileIdHeader'));
-		$this->server->on('afterWriteContent', array($this, 'sendFileIdHeader'));
-		$this->server->on('afterMethod:GET', [$this,'httpGet']);
-		$this->server->on('afterMethod:GET', array($this, 'handleDownloadToken'));
-		$this->server->on('afterResponse', function($request, ResponseInterface $response) {
-			$body = $response->getBody();
-			if (is_resource($body)) {
-				fclose($body);
-			}
-		});
-		$this->server->on('beforeMove', [$this, 'checkMove']);
-	}
-
-	/**
-	 * Plugin that checks if a move can actually be performed.
-	 *
-	 * @param string $source source path
-	 * @param string $destination destination path
-	 * @throws Forbidden
-	 * @throws NotFound
-	 */
-	function checkMove($source, $destination) {
-		$sourceNode = $this->tree->getNodeForPath($source);
-		if (!$sourceNode instanceof Node) {
-			return;
-		}
-		list($sourceDir,) = \Sabre\HTTP\URLUtil::splitPath($source);
-		list($destinationDir,) = \Sabre\HTTP\URLUtil::splitPath($destination);
-
-		if ($sourceDir !== $destinationDir) {
-			$sourceNodeFileInfo = $sourceNode->getFileInfo();
-			if (is_null($sourceNodeFileInfo)) {
-				throw new NotFound($source . ' does not exist');
-			}
-
-			if (!$sourceNodeFileInfo->isDeletable()) {
-				throw new Forbidden($source . " cannot be deleted");
-			}
-		}
-	}
-
-	/**
-	 * This sets a cookie to be able to recognize the start of the download
-	 * the content must not be longer than 32 characters and must only contain
-	 * alphanumeric characters
-	 *
-	 * @param RequestInterface $request
-	 * @param ResponseInterface $response
-	 */
-	function handleDownloadToken(RequestInterface $request, ResponseInterface $response) {
-		$queryParams = $request->getQueryParameters();
-
-		/**
-		 * this sets a cookie to be able to recognize the start of the download
-		 * the content must not be longer than 32 characters and must only contain
-		 * alphanumeric characters
-		 */
-		if (isset($queryParams['downloadStartSecret'])) {
-			$token = $queryParams['downloadStartSecret'];
-			if (!isset($token[32])
-				&& preg_match('!^[a-zA-Z0-9]+$!', $token) === 1) {
-				// FIXME: use $response->setHeader() instead
-				setcookie('ocDownloadStarted', $token, time() + 20, '/');
-			}
-		}
-	}
-
-	/**
-	 * Add headers to file download
-	 *
-	 * @param RequestInterface $request
-	 * @param ResponseInterface $response
-	 */
-	function httpGet(RequestInterface $request, ResponseInterface $response) {
-		// Only handle valid files
-		$node = $this->tree->getNodeForPath($request->getPath());
-		if (!($node instanceof IFile)) return;
-
-		// adds a 'Content-Disposition: attachment' header
-		if ($this->downloadAttachment) {
-			$filename = $node->getName();
-			if ($this->request->isUserAgent(
-				[
-					\OC\AppFramework\Http\Request::USER_AGENT_IE,
-					\OC\AppFramework\Http\Request::USER_AGENT_ANDROID_MOBILE_CHROME,
-					\OC\AppFramework\Http\Request::USER_AGENT_FREEBOX,
-				])) {
-				$response->addHeader('Content-Disposition', 'attachment; filename="' . rawurlencode($filename) . '"');
-			} else {
-				$response->addHeader('Content-Disposition', 'attachment; filename*=UTF-8\'\'' . rawurlencode($filename)
-													 . '; filename="' . rawurlencode($filename) . '"');
-			}
-		}
-
-		if ($node instanceof \OCA\DAV\Connector\Sabre\File) {
-			//Add OC-Checksum header
-			/** @var $node File */
-			$checksum = $node->getChecksum();
-			if ($checksum !== null && $checksum !== '') {
-				$response->addHeader('OC-Checksum', $checksum);
-			}
-		}
-	}
-
-	/**
-	 * Adds all ownCloud-specific properties
-	 *
-	 * @param PropFind $propFind
-	 * @param \Sabre\DAV\INode $node
-	 * @return void
-	 */
-	public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $node) {
-
-		$httpRequest = $this->server->httpRequest;
-
-		if ($node instanceof \OCA\DAV\Connector\Sabre\Node) {
-
-			$propFind->handle(self::FILEID_PROPERTYNAME, function() use ($node) {
-				return $node->getFileId();
-			});
-
-			$propFind->handle(self::INTERNAL_FILEID_PROPERTYNAME, function() use ($node) {
-				return $node->getInternalFileId();
-			});
-
-			$propFind->handle(self::PERMISSIONS_PROPERTYNAME, function() use ($node) {
-				$perms = $node->getDavPermissions();
-				if ($this->isPublic) {
-					// remove mount information
-					$perms = str_replace(['S', 'M'], '', $perms);
-				}
-				return $perms;
-			});
-
-			$propFind->handle(self::SHARE_PERMISSIONS_PROPERTYNAME, function() use ($node, $httpRequest) {
-				return $node->getSharePermissions(
-					$httpRequest->getRawServerValue('PHP_AUTH_USER')
-				);
-			});
-
-			$propFind->handle(self::GETETAG_PROPERTYNAME, function() use ($node) {
-				return $node->getETag();
-			});
-
-			$propFind->handle(self::OWNER_ID_PROPERTYNAME, function() use ($node) {
-				$owner = $node->getOwner();
-				return $owner->getUID();
-			});
-			$propFind->handle(self::OWNER_DISPLAY_NAME_PROPERTYNAME, function() use ($node) {
-				$owner = $node->getOwner();
-				$displayName = $owner->getDisplayName();
-				return $displayName;
-			});
-
-			$propFind->handle(self::HAS_PREVIEW_PROPERTYNAME, function () use ($node) {
-				return json_encode($this->previewManager->isAvailable($node->getFileInfo()));
-			});
-		}
-
-		if ($node instanceof \OCA\DAV\Connector\Sabre\Node
-			|| $node instanceof \OCA\DAV\Files\FilesHome) {
-			$propFind->handle(self::DATA_FINGERPRINT_PROPERTYNAME, function() use ($node) {
-				return $this->config->getSystemValue('data-fingerprint', '');
-			});
-		}
-
-		if ($node instanceof \OCA\DAV\Connector\Sabre\File) {
-			$propFind->handle(self::DOWNLOADURL_PROPERTYNAME, function() use ($node) {
-				/** @var $node \OCA\DAV\Connector\Sabre\File */
-				try {
-					$directDownloadUrl = $node->getDirectDownload();
-					if (isset($directDownloadUrl['url'])) {
-						return $directDownloadUrl['url'];
-					}
-				} catch (StorageNotAvailableException $e) {
-					return false;
-				} catch (ForbiddenException $e) {
-					return false;
-				}
-				return false;
-			});
-
-			$propFind->handle(self::CHECKSUMS_PROPERTYNAME, function() use ($node) {
-				$checksum = $node->getChecksum();
-				if ($checksum === NULL || $checksum === '') {
-					return null;
-				}
-
-				return new ChecksumList($checksum);
-			});
-
-		}
-
-		if ($node instanceof \OCA\DAV\Connector\Sabre\Directory) {
-			$propFind->handle(self::SIZE_PROPERTYNAME, function() use ($node) {
-				return $node->getSize();
-			});
-		}
-	}
-
-	/**
-	 * Update ownCloud-specific properties
-	 *
-	 * @param string $path
-	 * @param PropPatch $propPatch
-	 *
-	 * @return void
-	 */
-	public function handleUpdateProperties($path, PropPatch $propPatch) {
-		$propPatch->handle(self::LASTMODIFIED_PROPERTYNAME, function($time) use ($path) {
-			if (empty($time)) {
-				return false;
-			}
-			$node = $this->tree->getNodeForPath($path);
-			if (is_null($node)) {
-				return 404;
-			}
-			$node->touch($time);
-			return true;
-		});
-		$propPatch->handle(self::GETETAG_PROPERTYNAME, function($etag) use ($path) {
-			if (empty($etag)) {
-				return false;
-			}
-			$node = $this->tree->getNodeForPath($path);
-			if (is_null($node)) {
-				return 404;
-			}
-			if ($node->setEtag($etag) !== -1) {
-				return true;
-			}
-			return false;
-		});
-	}
-
-	/**
-	 * @param string $filePath
-	 * @param \Sabre\DAV\INode $node
-	 * @throws \Sabre\DAV\Exception\BadRequest
-	 */
-	public function sendFileIdHeader($filePath, \Sabre\DAV\INode $node = null) {
-		// chunked upload handling
-		if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
-			list($path, $name) = \Sabre\HTTP\URLUtil::splitPath($filePath);
-			$info = \OC_FileChunking::decodeName($name);
-			if (!empty($info)) {
-				$filePath = $path . '/' . $info['name'];
-			}
-		}
-
-		// we get the node for the given $filePath here because in case of afterCreateFile $node is the parent folder
-		if (!$this->server->tree->nodeExists($filePath)) {
-			return;
-		}
-		$node = $this->server->tree->getNodeForPath($filePath);
-		if ($node instanceof \OCA\DAV\Connector\Sabre\Node) {
-			$fileId = $node->getFileId();
-			if (!is_null($fileId)) {
-				$this->server->httpResponse->setHeader('OC-FileId', $fileId);
-			}
-		}
-	}
+    // namespace
+    const NS_OWNCLOUD = 'http://owncloud.org/ns';
+    const NS_NEXTCLOUD = 'http://nextcloud.org/ns';
+    const FILEID_PROPERTYNAME = '{http://owncloud.org/ns}id';
+    const INTERNAL_FILEID_PROPERTYNAME = '{http://owncloud.org/ns}fileid';
+    const PERMISSIONS_PROPERTYNAME = '{http://owncloud.org/ns}permissions';
+    const SHARE_PERMISSIONS_PROPERTYNAME = '{http://open-collaboration-services.org/ns}share-permissions';
+    const DOWNLOADURL_PROPERTYNAME = '{http://owncloud.org/ns}downloadURL';
+    const SIZE_PROPERTYNAME = '{http://owncloud.org/ns}size';
+    const GETETAG_PROPERTYNAME = '{DAV:}getetag';
+    const LASTMODIFIED_PROPERTYNAME = '{DAV:}lastmodified';
+    const OWNER_ID_PROPERTYNAME = '{http://owncloud.org/ns}owner-id';
+    const OWNER_DISPLAY_NAME_PROPERTYNAME = '{http://owncloud.org/ns}owner-display-name';
+    const CHECKSUMS_PROPERTYNAME = '{http://owncloud.org/ns}checksums';
+    const DATA_FINGERPRINT_PROPERTYNAME = '{http://owncloud.org/ns}data-fingerprint';
+    const HAS_PREVIEW_PROPERTYNAME = '{http://nextcloud.org/ns}has-preview';
+
+    /**
+     * Reference to main server object
+     *
+     * @var \Sabre\DAV\Server
+     */
+    private $server;
+
+    /**
+     * @var Tree
+     */
+    private $tree;
+
+    /**
+     * Whether this is public webdav.
+     * If true, some returned information will be stripped off.
+     *
+     * @var bool
+     */
+    private $isPublic;
+
+    /**
+     * @var View
+     */
+    private $fileView;
+
+    /**
+     * @var bool
+     */
+    private $downloadAttachment;
+
+    /**
+     * @var IConfig
+     */
+    private $config;
+
+    /**
+     * @var IRequest
+     */
+    private $request;
+
+    /**
+     * @var IPreview
+     */
+    private $previewManager;
+
+    /**
+     * @param Tree $tree
+     * @param View $view
+     * @param IConfig $config
+     * @param IRequest $request
+     * @param IPreview $previewManager
+     * @param bool $isPublic
+     * @param bool $downloadAttachment
+     */
+    public function __construct(Tree $tree,
+                                View $view,
+                                IConfig $config,
+                                IRequest $request,
+                                IPreview $previewManager,
+                                $isPublic = false,
+                                $downloadAttachment = true) {
+        $this->tree = $tree;
+        $this->fileView = $view;
+        $this->config = $config;
+        $this->request = $request;
+        $this->isPublic = $isPublic;
+        $this->downloadAttachment = $downloadAttachment;
+        $this->previewManager = $previewManager;
+    }
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by \Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param \Sabre\DAV\Server $server
+     * @return void
+     */
+    public function initialize(\Sabre\DAV\Server $server) {
+
+        $server->xml->namespaceMap[self::NS_OWNCLOUD] = 'oc';
+        $server->xml->namespaceMap[self::NS_NEXTCLOUD] = 'nc';
+        $server->protectedProperties[] = self::FILEID_PROPERTYNAME;
+        $server->protectedProperties[] = self::INTERNAL_FILEID_PROPERTYNAME;
+        $server->protectedProperties[] = self::PERMISSIONS_PROPERTYNAME;
+        $server->protectedProperties[] = self::SHARE_PERMISSIONS_PROPERTYNAME;
+        $server->protectedProperties[] = self::SIZE_PROPERTYNAME;
+        $server->protectedProperties[] = self::DOWNLOADURL_PROPERTYNAME;
+        $server->protectedProperties[] = self::OWNER_ID_PROPERTYNAME;
+        $server->protectedProperties[] = self::OWNER_DISPLAY_NAME_PROPERTYNAME;
+        $server->protectedProperties[] = self::CHECKSUMS_PROPERTYNAME;
+        $server->protectedProperties[] = self::DATA_FINGERPRINT_PROPERTYNAME;
+        $server->protectedProperties[] = self::HAS_PREVIEW_PROPERTYNAME;
+
+        // normally these cannot be changed (RFC4918), but we want them modifiable through PROPPATCH
+        $allowedProperties = ['{DAV:}getetag'];
+        $server->protectedProperties = array_diff($server->protectedProperties, $allowedProperties);
+
+        $this->server = $server;
+        $this->server->on('propFind', array($this, 'handleGetProperties'));
+        $this->server->on('propPatch', array($this, 'handleUpdateProperties'));
+        $this->server->on('afterBind', array($this, 'sendFileIdHeader'));
+        $this->server->on('afterWriteContent', array($this, 'sendFileIdHeader'));
+        $this->server->on('afterMethod:GET', [$this,'httpGet']);
+        $this->server->on('afterMethod:GET', array($this, 'handleDownloadToken'));
+        $this->server->on('afterResponse', function($request, ResponseInterface $response) {
+            $body = $response->getBody();
+            if (is_resource($body)) {
+                fclose($body);
+            }
+        });
+        $this->server->on('beforeMove', [$this, 'checkMove']);
+    }
+
+    /**
+     * Plugin that checks if a move can actually be performed.
+     *
+     * @param string $source source path
+     * @param string $destination destination path
+     * @throws Forbidden
+     * @throws NotFound
+     */
+    function checkMove($source, $destination) {
+        $sourceNode = $this->tree->getNodeForPath($source);
+        if (!$sourceNode instanceof Node) {
+            return;
+        }
+        list($sourceDir,) = \Sabre\HTTP\URLUtil::splitPath($source);
+        list($destinationDir,) = \Sabre\HTTP\URLUtil::splitPath($destination);
+
+        if ($sourceDir !== $destinationDir) {
+            $sourceNodeFileInfo = $sourceNode->getFileInfo();
+            if (is_null($sourceNodeFileInfo)) {
+                throw new NotFound($source . ' does not exist');
+            }
+
+            if (!$sourceNodeFileInfo->isDeletable()) {
+                throw new Forbidden($source . " cannot be deleted");
+            }
+        }
+    }
+
+    /**
+     * This sets a cookie to be able to recognize the start of the download
+     * the content must not be longer than 32 characters and must only contain
+     * alphanumeric characters
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     */
+    function handleDownloadToken(RequestInterface $request, ResponseInterface $response) {
+        $queryParams = $request->getQueryParameters();
+
+        /**
+         * this sets a cookie to be able to recognize the start of the download
+         * the content must not be longer than 32 characters and must only contain
+         * alphanumeric characters
+         */
+        if (isset($queryParams['downloadStartSecret'])) {
+            $token = $queryParams['downloadStartSecret'];
+            if (!isset($token[32])
+                && preg_match('!^[a-zA-Z0-9]+$!', $token) === 1) {
+                // FIXME: use $response->setHeader() instead
+                setcookie('ocDownloadStarted', $token, time() + 20, '/');
+            }
+        }
+    }
+
+    /**
+     * Add headers to file download
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+        // Only handle valid files
+        $node = $this->tree->getNodeForPath($request->getPath());
+        if (!($node instanceof IFile)) return;
+
+        // adds a 'Content-Disposition: attachment' header
+        if ($this->downloadAttachment) {
+            $filename = $node->getName();
+            if ($this->request->isUserAgent(
+                [
+                    \OC\AppFramework\Http\Request::USER_AGENT_IE,
+                    \OC\AppFramework\Http\Request::USER_AGENT_ANDROID_MOBILE_CHROME,
+                    \OC\AppFramework\Http\Request::USER_AGENT_FREEBOX,
+                ])) {
+                $response->addHeader('Content-Disposition', 'attachment; filename="' . rawurlencode($filename) . '"');
+            } else {
+                $response->addHeader('Content-Disposition', 'attachment; filename*=UTF-8\'\'' . rawurlencode($filename)
+                                                        . '; filename="' . rawurlencode($filename) . '"');
+            }
+        }
+
+        if ($node instanceof \OCA\DAV\Connector\Sabre\File) {
+            //Add OC-Checksum header
+            /** @var $node File */
+            $checksum = $node->getChecksum();
+            if ($checksum !== null && $checksum !== '') {
+                $response->addHeader('OC-Checksum', $checksum);
+            }
+        }
+    }
+
+    /**
+     * Adds all ownCloud-specific properties
+     *
+     * @param PropFind $propFind
+     * @param \Sabre\DAV\INode $node
+     * @return void
+     */
+    public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $node) {
+
+        $httpRequest = $this->server->httpRequest;
+
+        if ($node instanceof \OCA\DAV\Connector\Sabre\Node) {
+
+            $propFind->handle(self::FILEID_PROPERTYNAME, function() use ($node) {
+                return $node->getFileId();
+            });
+
+            $propFind->handle(self::INTERNAL_FILEID_PROPERTYNAME, function() use ($node) {
+                return $node->getInternalFileId();
+            });
+
+            $propFind->handle(self::PERMISSIONS_PROPERTYNAME, function() use ($node) {
+                $perms = $node->getDavPermissions();
+                if ($this->isPublic) {
+                    // remove mount information
+                    $perms = str_replace(['S', 'M'], '', $perms);
+                }
+                return $perms;
+            });
+
+            $propFind->handle(self::SHARE_PERMISSIONS_PROPERTYNAME, function() use ($node, $httpRequest) {
+                return $node->getSharePermissions(
+                    $httpRequest->getRawServerValue('PHP_AUTH_USER')
+                );
+            });
+
+            $propFind->handle(self::GETETAG_PROPERTYNAME, function() use ($node) {
+                return $node->getETag();
+            });
+
+            $propFind->handle(self::OWNER_ID_PROPERTYNAME, function() use ($node) {
+                $owner = $node->getOwner();
+                return $owner->getUID();
+            });
+            $propFind->handle(self::OWNER_DISPLAY_NAME_PROPERTYNAME, function() use ($node) {
+                $owner = $node->getOwner();
+                $displayName = $owner->getDisplayName();
+                return $displayName;
+            });
+
+            $propFind->handle(self::HAS_PREVIEW_PROPERTYNAME, function () use ($node) {
+                return json_encode($this->previewManager->isAvailable($node->getFileInfo()));
+            });
+        }
+
+        if ($node instanceof \OCA\DAV\Connector\Sabre\Node
+            || $node instanceof \OCA\DAV\Files\FilesHome) {
+            $propFind->handle(self::DATA_FINGERPRINT_PROPERTYNAME, function() use ($node) {
+                return $this->config->getSystemValue('data-fingerprint', '');
+            });
+        }
+
+        if ($node instanceof \OCA\DAV\Connector\Sabre\File) {
+            $propFind->handle(self::DOWNLOADURL_PROPERTYNAME, function() use ($node) {
+                /** @var $node \OCA\DAV\Connector\Sabre\File */
+                try {
+                    $directDownloadUrl = $node->getDirectDownload();
+                    if (isset($directDownloadUrl['url'])) {
+                        return $directDownloadUrl['url'];
+                    }
+                } catch (StorageNotAvailableException $e) {
+                    return false;
+                } catch (ForbiddenException $e) {
+                    return false;
+                }
+                return false;
+            });
+
+            $propFind->handle(self::CHECKSUMS_PROPERTYNAME, function() use ($node) {
+                $checksum = $node->getChecksum();
+                if ($checksum === NULL || $checksum === '') {
+                    return null;
+                }
+
+                return new ChecksumList($checksum);
+            });
+
+        }
+
+        if ($node instanceof \OCA\DAV\Connector\Sabre\Directory) {
+            $propFind->handle(self::SIZE_PROPERTYNAME, function() use ($node) {
+                return $node->getSize();
+            });
+        }
+    }
+
+    /**
+     * Update ownCloud-specific properties
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     *
+     * @return void
+     */
+    public function handleUpdateProperties($path, PropPatch $propPatch) {
+        $propPatch->handle(self::LASTMODIFIED_PROPERTYNAME, function($time) use ($path) {
+            if (empty($time)) {
+                return false;
+            }
+            $node = $this->tree->getNodeForPath($path);
+            if (is_null($node)) {
+                return 404;
+            }
+            $node->touch($time);
+            return true;
+        });
+        $propPatch->handle(self::GETETAG_PROPERTYNAME, function($etag) use ($path) {
+            if (empty($etag)) {
+                return false;
+            }
+            $node = $this->tree->getNodeForPath($path);
+            if (is_null($node)) {
+                return 404;
+            }
+            if ($node->setEtag($etag) !== -1) {
+                return true;
+            }
+            return false;
+        });
+    }
+
+    /**
+     * @param string $filePath
+     * @param \Sabre\DAV\INode $node
+     * @throws \Sabre\DAV\Exception\BadRequest
+     */
+    public function sendFileIdHeader($filePath, \Sabre\DAV\INode $node = null) {
+        // chunked upload handling
+        if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
+            list($path, $name) = \Sabre\HTTP\URLUtil::splitPath($filePath);
+            $info = \OC_FileChunking::decodeName($name);
+            if (!empty($info)) {
+                $filePath = $path . '/' . $info['name'];
+            }
+        }
+
+        // we get the node for the given $filePath here because in case of afterCreateFile $node is the parent folder
+        if (!$this->server->tree->nodeExists($filePath)) {
+            return;
+        }
+        $node = $this->server->tree->getNodeForPath($filePath);
+        if ($node instanceof \OCA\DAV\Connector\Sabre\Node) {
+            $fileId = $node->getFileId();
+            if (!is_null($fileId)) {
+                $this->server->httpResponse->setHeader('OC-FileId', $fileId);
+            }
+        }
+    }
 
 }

Spacing +8 added lines, -8 removed lines

@@ -172,7 +172,7 @@ 
 		$this->server->on('propPatch', array($this, 'handleUpdateProperties'));
 		$this->server->on('afterBind', array($this, 'sendFileIdHeader'));
 		$this->server->on('afterWriteContent', array($this, 'sendFileIdHeader'));
-		$this->server->on('afterMethod:GET', [$this,'httpGet']);
+		$this->server->on('afterMethod:GET', [$this, 'httpGet']);
 		$this->server->on('afterMethod:GET', array($this, 'handleDownloadToken'));
 		$this->server->on('afterResponse', function($request, ResponseInterface $response) {
 			$body = $response->getBody();
@@ -202,11 +202,11 @@ 
 		if ($sourceDir !== $destinationDir) {
 			$sourceNodeFileInfo = $sourceNode->getFileInfo();
 			if (is_null($sourceNodeFileInfo)) {
-				throw new NotFound($source . ' does not exist');
+				throw new NotFound($source.' does not exist');
 			}
 
 			if (!$sourceNodeFileInfo->isDeletable()) {
-				throw new Forbidden($source . " cannot be deleted");
+				throw new Forbidden($source." cannot be deleted");
 			}
 		}
 	}
@@ -257,10 +257,10 @@ 
 					\OC\AppFramework\Http\Request::USER_AGENT_ANDROID_MOBILE_CHROME,
 					\OC\AppFramework\Http\Request::USER_AGENT_FREEBOX,
 				])) {
-				$response->addHeader('Content-Disposition', 'attachment; filename="' . rawurlencode($filename) . '"');
+				$response->addHeader('Content-Disposition', 'attachment; filename="'.rawurlencode($filename).'"');
 			} else {
-				$response->addHeader('Content-Disposition', 'attachment; filename*=UTF-8\'\'' . rawurlencode($filename)
-													 . '; filename="' . rawurlencode($filename) . '"');
+				$response->addHeader('Content-Disposition', 'attachment; filename*=UTF-8\'\''.rawurlencode($filename)
+													 . '; filename="'.rawurlencode($filename).'"');
 			}
 		}
 
@@ -324,7 +324,7 @@ 
 				return $displayName;
 			});
 
-			$propFind->handle(self::HAS_PREVIEW_PROPERTYNAME, function () use ($node) {
+			$propFind->handle(self::HAS_PREVIEW_PROPERTYNAME, function() use ($node) {
 				return json_encode($this->previewManager->isAvailable($node->getFileInfo()));
 			});
 		}
@@ -416,7 +416,7 @@ 
 			list($path, $name) = \Sabre\HTTP\URLUtil::splitPath($filePath);
 			$info = \OC_FileChunking::decodeName($name);
 			if (!empty($info)) {
-				$filePath = $path . '/' . $info['name'];
+				$filePath = $path.'/'.$info['name'];
 			}
 		}
 

Braces +3 added lines, -1 removed lines

@@ -246,7 +246,9 @@
 	function httpGet(RequestInterface $request, ResponseInterface $response) {
 		// Only handle valid files
 		$node = $this->tree->getNodeForPath($request->getPath());
-		if (!($node instanceof IFile)) return;
+		if (!($node instanceof IFile)) {
+		    return;
+		}
 
 		// adds a 'Content-Disposition: attachment' header
 		if ($this->downloadAttachment) {

lib/private/Memcache/APCu.php

Doc Comments +1 added lines, -1 removed lines

@@ -65,7 +65,7 @@
 	 * Set a value in the cache if it's not already stored
 	 *
 	 * @param string $key
-	 * @param mixed $value
+	 * @param integer $value
 	 * @param int $ttl Time To Live in seconds. Defaults to 60*60*24
 	 * @return bool
 	 */

Indentation +125 added lines, -125 removed lines

@@ -30,140 +30,140 @@
 use OCP\IMemcache;
 
 class APCu extends Cache implements IMemcache {
-	use CASTrait {
-		cas as casEmulated;
-	}
+    use CASTrait {
+        cas as casEmulated;
+    }
 
-	use CADTrait;
+    use CADTrait;
 
-	public function get($key) {
-		$result = apcu_fetch($this->getPrefix() . $key, $success);
-		if (!$success) {
-			return null;
-		}
-		return $result;
-	}
+    public function get($key) {
+        $result = apcu_fetch($this->getPrefix() . $key, $success);
+        if (!$success) {
+            return null;
+        }
+        return $result;
+    }
 
-	public function set($key, $value, $ttl = 0) {
-		return apcu_store($this->getPrefix() . $key, $value, $ttl);
-	}
+    public function set($key, $value, $ttl = 0) {
+        return apcu_store($this->getPrefix() . $key, $value, $ttl);
+    }
 
-	public function hasKey($key) {
-		return apcu_exists($this->getPrefix() . $key);
-	}
+    public function hasKey($key) {
+        return apcu_exists($this->getPrefix() . $key);
+    }
 
-	public function remove($key) {
-		return apcu_delete($this->getPrefix() . $key);
-	}
+    public function remove($key) {
+        return apcu_delete($this->getPrefix() . $key);
+    }
 
-	public function clear($prefix = '') {
-		$ns = $this->getPrefix() . $prefix;
-		$ns = preg_quote($ns, '/');
-		if(class_exists('\APCIterator')) {
-			$iter = new \APCIterator('user', '/^' . $ns . '/', APC_ITER_KEY);
-		} else {
-			$iter = new \APCUIterator('/^' . $ns . '/', APC_ITER_KEY);
-		}
-		return apcu_delete($iter);
-	}
+    public function clear($prefix = '') {
+        $ns = $this->getPrefix() . $prefix;
+        $ns = preg_quote($ns, '/');
+        if(class_exists('\APCIterator')) {
+            $iter = new \APCIterator('user', '/^' . $ns . '/', APC_ITER_KEY);
+        } else {
+            $iter = new \APCUIterator('/^' . $ns . '/', APC_ITER_KEY);
+        }
+        return apcu_delete($iter);
+    }
 
-	/**
-	 * Set a value in the cache if it's not already stored
-	 *
-	 * @param string $key
-	 * @param mixed $value
-	 * @param int $ttl Time To Live in seconds. Defaults to 60*60*24
-	 * @return bool
-	 */
-	public function add($key, $value, $ttl = 0) {
-		return apcu_add($this->getPrefix() . $key, $value, $ttl);
-	}
+    /**
+     * Set a value in the cache if it's not already stored
+     *
+     * @param string $key
+     * @param mixed $value
+     * @param int $ttl Time To Live in seconds. Defaults to 60*60*24
+     * @return bool
+     */
+    public function add($key, $value, $ttl = 0) {
+        return apcu_add($this->getPrefix() . $key, $value, $ttl);
+    }
 
-	/**
-	 * Increase a stored number
-	 *
-	 * @param string $key
-	 * @param int $step
-	 * @return int | bool
-	 */
-	public function inc($key, $step = 1) {
-		$this->add($key, 0);
-		/**
-		 * TODO - hack around a PHP 7 specific issue in APCu
-		 *
-		 * on PHP 7 the apcu_inc method on a non-existing object will increment
-		 * "0" and result in "1" as value - therefore we check for existence
-		 * first
-		 *
-		 * on PHP 5.6 this is not the case
-		 *
-		 * see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221
-		 * for details
-		 */
-		return apcu_exists($this->getPrefix() . $key)
-			? apcu_inc($this->getPrefix() . $key, $step)
-			: false;
-	}
+    /**
+     * Increase a stored number
+     *
+     * @param string $key
+     * @param int $step
+     * @return int | bool
+     */
+    public function inc($key, $step = 1) {
+        $this->add($key, 0);
+        /**
+         * TODO - hack around a PHP 7 specific issue in APCu
+         *
+         * on PHP 7 the apcu_inc method on a non-existing object will increment
+         * "0" and result in "1" as value - therefore we check for existence
+         * first
+         *
+         * on PHP 5.6 this is not the case
+         *
+         * see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221
+         * for details
+         */
+        return apcu_exists($this->getPrefix() . $key)
+            ? apcu_inc($this->getPrefix() . $key, $step)
+            : false;
+    }
 
-	/**
-	 * Decrease a stored number
-	 *
-	 * @param string $key
-	 * @param int $step
-	 * @return int | bool
-	 */
-	public function dec($key, $step = 1) {
-		/**
-		 * TODO - hack around a PHP 7 specific issue in APCu
-		 *
-		 * on PHP 7 the apcu_dec method on a non-existing object will decrement
-		 * "0" and result in "-1" as value - therefore we check for existence
-		 * first
-		 *
-		 * on PHP 5.6 this is not the case
-		 *
-		 * see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221
-		 * for details
-		 */
-		return apcu_exists($this->getPrefix() . $key)
-			? apcu_dec($this->getPrefix() . $key, $step)
-			: false;
-	}
+    /**
+     * Decrease a stored number
+     *
+     * @param string $key
+     * @param int $step
+     * @return int | bool
+     */
+    public function dec($key, $step = 1) {
+        /**
+         * TODO - hack around a PHP 7 specific issue in APCu
+         *
+         * on PHP 7 the apcu_dec method on a non-existing object will decrement
+         * "0" and result in "-1" as value - therefore we check for existence
+         * first
+         *
+         * on PHP 5.6 this is not the case
+         *
+         * see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221
+         * for details
+         */
+        return apcu_exists($this->getPrefix() . $key)
+            ? apcu_dec($this->getPrefix() . $key, $step)
+            : false;
+    }
 
-	/**
-	 * Compare and set
-	 *
-	 * @param string $key
-	 * @param mixed $old
-	 * @param mixed $new
-	 * @return bool
-	 */
-	public function cas($key, $old, $new) {
-		// apc only does cas for ints
-		if (is_int($old) and is_int($new)) {
-			return apcu_cas($this->getPrefix() . $key, $old, $new);
-		} else {
-			return $this->casEmulated($key, $old, $new);
-		}
-	}
+    /**
+     * Compare and set
+     *
+     * @param string $key
+     * @param mixed $old
+     * @param mixed $new
+     * @return bool
+     */
+    public function cas($key, $old, $new) {
+        // apc only does cas for ints
+        if (is_int($old) and is_int($new)) {
+            return apcu_cas($this->getPrefix() . $key, $old, $new);
+        } else {
+            return $this->casEmulated($key, $old, $new);
+        }
+    }
 
-	/**
-	 * @return bool
-	 */
-	static public function isAvailable() {
-		if (!extension_loaded('apcu')) {
-			return false;
-		} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enabled')) {
-			return false;
-		} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enable_cli') && \OC::$CLI) {
-			return false;
-		} elseif (
-				version_compare(phpversion('apc'), '4.0.6') === -1 &&
-				version_compare(phpversion('apcu'), '5.1.0') === -1
-		) {
-			return false;
-		} else {
-			return true;
-		}
-	}
+    /**
+     * @return bool
+     */
+    static public function isAvailable() {
+        if (!extension_loaded('apcu')) {
+            return false;
+        } elseif (!\OC::$server->getIniWrapper()->getBool('apc.enabled')) {
+            return false;
+        } elseif (!\OC::$server->getIniWrapper()->getBool('apc.enable_cli') && \OC::$CLI) {
+            return false;
+        } elseif (
+                version_compare(phpversion('apc'), '4.0.6') === -1 &&
+                version_compare(phpversion('apcu'), '5.1.0') === -1
+        ) {
+            return false;
+        } else {
+            return true;
+        }
+    }
 }

Spacing +14 added lines, -14 removed lines

@@ -37,7 +37,7 @@ 
 	use CADTrait;
 
 	public function get($key) {
-		$result = apcu_fetch($this->getPrefix() . $key, $success);
+		$result = apcu_fetch($this->getPrefix().$key, $success);
 		if (!$success) {
 			return null;
 		}
@@ -45,24 +45,24 @@ 
 	}
 
 	public function set($key, $value, $ttl = 0) {
-		return apcu_store($this->getPrefix() . $key, $value, $ttl);
+		return apcu_store($this->getPrefix().$key, $value, $ttl);
 	}
 
 	public function hasKey($key) {
-		return apcu_exists($this->getPrefix() . $key);
+		return apcu_exists($this->getPrefix().$key);
 	}
 
 	public function remove($key) {
-		return apcu_delete($this->getPrefix() . $key);
+		return apcu_delete($this->getPrefix().$key);
 	}
 
 	public function clear($prefix = '') {
-		$ns = $this->getPrefix() . $prefix;
+		$ns = $this->getPrefix().$prefix;
 		$ns = preg_quote($ns, '/');
-		if(class_exists('\APCIterator')) {
-			$iter = new \APCIterator('user', '/^' . $ns . '/', APC_ITER_KEY);
+		if (class_exists('\APCIterator')) {
+			$iter = new \APCIterator('user', '/^'.$ns.'/', APC_ITER_KEY);
 		} else {
-			$iter = new \APCUIterator('/^' . $ns . '/', APC_ITER_KEY);
+			$iter = new \APCUIterator('/^'.$ns.'/', APC_ITER_KEY);
 		}
 		return apcu_delete($iter);
 	}
@@ -76,7 +76,7 @@ 
 	 * @return bool
 	 */
 	public function add($key, $value, $ttl = 0) {
-		return apcu_add($this->getPrefix() . $key, $value, $ttl);
+		return apcu_add($this->getPrefix().$key, $value, $ttl);
 	}
 
 	/**
@@ -100,8 +100,8 @@ 
 		 * see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221
 		 * for details
 		 */
-		return apcu_exists($this->getPrefix() . $key)
-			? apcu_inc($this->getPrefix() . $key, $step)
+		return apcu_exists($this->getPrefix().$key)
+			? apcu_inc($this->getPrefix().$key, $step)
 			: false;
 	}
 
@@ -125,8 +125,8 @@ 
 		 * see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221
 		 * for details
 		 */
-		return apcu_exists($this->getPrefix() . $key)
-			? apcu_dec($this->getPrefix() . $key, $step)
+		return apcu_exists($this->getPrefix().$key)
+			? apcu_dec($this->getPrefix().$key, $step)
 			: false;
 	}
 
@@ -141,7 +141,7 @@ 
 	public function cas($key, $old, $new) {
 		// apc only does cas for ints
 		if (is_int($old) and is_int($new)) {
-			return apcu_cas($this->getPrefix() . $key, $old, $new);
+			return apcu_cas($this->getPrefix().$key, $old, $new);
 		} else {
 			return $this->casEmulated($key, $old, $new);
 		}

lib/private/Memcache/ArrayCache.php

Doc Comments +1 added lines, -1 removed lines

@@ -65,7 +65,7 @@
 	 * Set a value in the cache if it's not already stored
 	 *
 	 * @param string $key
-	 * @param mixed $value
+	 * @param integer $value
 	 * @param int $ttl Time To Live in seconds. Defaults to 60*60*24
 	 * @return bool
 	 */

Indentation +117 added lines, -117 removed lines

@@ -27,133 +27,133 @@
 use OCP\IMemcache;
 
 class ArrayCache extends Cache implements IMemcache {
-	/** @var array Array with the cached data */
-	protected $cachedData = array();
+    /** @var array Array with the cached data */
+    protected $cachedData = array();
 
-	use CADTrait;
+    use CADTrait;
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function get($key) {
-		if ($this->hasKey($key)) {
-			return $this->cachedData[$key];
-		}
-		return null;
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function get($key) {
+        if ($this->hasKey($key)) {
+            return $this->cachedData[$key];
+        }
+        return null;
+    }
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function set($key, $value, $ttl = 0) {
-		$this->cachedData[$key] = $value;
-		return true;
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function set($key, $value, $ttl = 0) {
+        $this->cachedData[$key] = $value;
+        return true;
+    }
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function hasKey($key) {
-		return isset($this->cachedData[$key]);
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function hasKey($key) {
+        return isset($this->cachedData[$key]);
+    }
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function remove($key) {
-		unset($this->cachedData[$key]);
-		return true;
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function remove($key) {
+        unset($this->cachedData[$key]);
+        return true;
+    }
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function clear($prefix = '') {
-		if ($prefix === '') {
-			$this->cachedData = [];
-			return true;
-		}
+    /**
+     * {@inheritDoc}
+     */
+    public function clear($prefix = '') {
+        if ($prefix === '') {
+            $this->cachedData = [];
+            return true;
+        }
 
-		foreach ($this->cachedData as $key => $value) {
-			if (strpos($key, $prefix) === 0) {
-				$this->remove($key);
-			}
-		}
-		return true;
-	}
+        foreach ($this->cachedData as $key => $value) {
+            if (strpos($key, $prefix) === 0) {
+                $this->remove($key);
+            }
+        }
+        return true;
+    }
 
-	/**
-	 * Set a value in the cache if it's not already stored
-	 *
-	 * @param string $key
-	 * @param mixed $value
-	 * @param int $ttl Time To Live in seconds. Defaults to 60*60*24
-	 * @return bool
-	 */
-	public function add($key, $value, $ttl = 0) {
-		// since this cache is not shared race conditions aren't an issue
-		if ($this->hasKey($key)) {
-			return false;
-		} else {
-			return $this->set($key, $value, $ttl);
-		}
-	}
+    /**
+     * Set a value in the cache if it's not already stored
+     *
+     * @param string $key
+     * @param mixed $value
+     * @param int $ttl Time To Live in seconds. Defaults to 60*60*24
+     * @return bool
+     */
+    public function add($key, $value, $ttl = 0) {
+        // since this cache is not shared race conditions aren't an issue
+        if ($this->hasKey($key)) {
+            return false;
+        } else {
+            return $this->set($key, $value, $ttl);
+        }
+    }
 
-	/**
-	 * Increase a stored number
-	 *
-	 * @param string $key
-	 * @param int $step
-	 * @return int | bool
-	 */
-	public function inc($key, $step = 1) {
-		$oldValue = $this->get($key);
-		if (is_int($oldValue)) {
-			$this->set($key, $oldValue + $step);
-			return $oldValue + $step;
-		} else {
-			$success = $this->add($key, $step);
-			return ($success) ? $step : false;
-		}
-	}
+    /**
+     * Increase a stored number
+     *
+     * @param string $key
+     * @param int $step
+     * @return int | bool
+     */
+    public function inc($key, $step = 1) {
+        $oldValue = $this->get($key);
+        if (is_int($oldValue)) {
+            $this->set($key, $oldValue + $step);
+            return $oldValue + $step;
+        } else {
+            $success = $this->add($key, $step);
+            return ($success) ? $step : false;
+        }
+    }
 
-	/**
-	 * Decrease a stored number
-	 *
-	 * @param string $key
-	 * @param int $step
-	 * @return int | bool
-	 */
-	public function dec($key, $step = 1) {
-		$oldValue = $this->get($key);
-		if (is_int($oldValue)) {
-			$this->set($key, $oldValue - $step);
-			return $oldValue - $step;
-		} else {
-			return false;
-		}
-	}
+    /**
+     * Decrease a stored number
+     *
+     * @param string $key
+     * @param int $step
+     * @return int | bool
+     */
+    public function dec($key, $step = 1) {
+        $oldValue = $this->get($key);
+        if (is_int($oldValue)) {
+            $this->set($key, $oldValue - $step);
+            return $oldValue - $step;
+        } else {
+            return false;
+        }
+    }
 
-	/**
-	 * Compare and set
-	 *
-	 * @param string $key
-	 * @param mixed $old
-	 * @param mixed $new
-	 * @return bool
-	 */
-	public function cas($key, $old, $new) {
-		if ($this->get($key) === $old) {
-			return $this->set($key, $new);
-		} else {
-			return false;
-		}
-	}
+    /**
+     * Compare and set
+     *
+     * @param string $key
+     * @param mixed $old
+     * @param mixed $new
+     * @return bool
+     */
+    public function cas($key, $old, $new) {
+        if ($this->get($key) === $old) {
+            return $this->set($key, $new);
+        } else {
+            return false;
+        }
+    }
 
-	/**
-	 * {@inheritDoc}
-	 */
-	static public function isAvailable() {
-		return true;
-	}
+    /**
+     * {@inheritDoc}
+     */
+    static public function isAvailable() {
+        return true;
+    }
 }

lib/private/User/Session.php

Doc Comments +4 added lines, -1 removed lines

@@ -311,7 +311,7 @@ 
 	 * @param OC\Security\Bruteforce\Throttler $throttler
 	 * @throws LoginException
 	 * @throws PasswordLoginForbiddenException
-	 * @return boolean
+	 * @return boolean|null
 	 */
 	public function logClientIn($user,
 								$password,
@@ -361,6 +361,9 @@ 
 		return $this->config->getSystemValue('token_auth_enforced', false);
 	}
 
+	/**
+	 * @param string $username
+	 */
 	protected function isTwoFactorEnforced($username) {
 		Util::emitHook(
 			'\OCA\Files_Sharing\API\Server2Server',

Indentation +708 added lines, -708 removed lines

@@ -71,714 +71,714 @@
  */
 class Session implements IUserSession, Emitter {
 
-	/** @var IUserManager $manager */
-	private $manager;
-
-	/** @var ISession $session */
-	private $session;
-
-	/** @var ITimeFactory */
-	private $timeFacory;
-
-	/** @var IProvider */
-	private $tokenProvider;
-
-	/** @var IConfig */
-	private $config;
-
-	/** @var User $activeUser */
-	protected $activeUser;
-
-	/**
-	 * @param IUserManager $manager
-	 * @param ISession $session
-	 * @param ITimeFactory $timeFacory
-	 * @param IProvider $tokenProvider
-	 * @param IConfig $config
-	 */
-	public function __construct(IUserManager $manager,
-								ISession $session,
-								ITimeFactory $timeFacory,
-								$tokenProvider,
-								IConfig $config) {
-		$this->manager = $manager;
-		$this->session = $session;
-		$this->timeFacory = $timeFacory;
-		$this->tokenProvider = $tokenProvider;
-		$this->config = $config;
-	}
-
-	/**
-	 * @param IProvider $provider
-	 */
-	public function setTokenProvider(IProvider $provider) {
-		$this->tokenProvider = $provider;
-	}
-
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param callable $callback
-	 */
-	public function listen($scope, $method, callable $callback) {
-		$this->manager->listen($scope, $method, $callback);
-	}
-
-	/**
-	 * @param string $scope optional
-	 * @param string $method optional
-	 * @param callable $callback optional
-	 */
-	public function removeListener($scope = null, $method = null, callable $callback = null) {
-		$this->manager->removeListener($scope, $method, $callback);
-	}
-
-	/**
-	 * get the manager object
-	 *
-	 * @return Manager
-	 */
-	public function getManager() {
-		return $this->manager;
-	}
-
-	/**
-	 * get the session object
-	 *
-	 * @return ISession
-	 */
-	public function getSession() {
-		return $this->session;
-	}
-
-	/**
-	 * set the session object
-	 *
-	 * @param ISession $session
-	 */
-	public function setSession(ISession $session) {
-		if ($this->session instanceof ISession) {
-			$this->session->close();
-		}
-		$this->session = $session;
-		$this->activeUser = null;
-	}
-
-	/**
-	 * set the currently active user
-	 *
-	 * @param User|null $user
-	 */
-	public function setUser($user) {
-		if (is_null($user)) {
-			$this->session->remove('user_id');
-		} else {
-			$this->session->set('user_id', $user->getUID());
-		}
-		$this->activeUser = $user;
-	}
-
-	/**
-	 * get the current active user
-	 *
-	 * @return IUser|null Current user, otherwise null
-	 */
-	public function getUser() {
-		// FIXME: This is a quick'n dirty work-around for the incognito mode as
-		// described at https://github.com/owncloud/core/pull/12912#issuecomment-67391155
-		if (OC_User::isIncognitoMode()) {
-			return null;
-		}
-		if (is_null($this->activeUser)) {
-			$uid = $this->session->get('user_id');
-			if (is_null($uid)) {
-				return null;
-			}
-			$this->activeUser = $this->manager->get($uid);
-			if (is_null($this->activeUser)) {
-				return null;
-			}
-			$this->validateSession();
-		}
-		return $this->activeUser;
-	}
-
-	/**
-	 * Validate whether the current session is valid
-	 *
-	 * - For token-authenticated clients, the token validity is checked
-	 * - For browsers, the session token validity is checked
-	 */
-	protected function validateSession() {
-		$token = null;
-		$appPassword = $this->session->get('app_password');
-
-		if (is_null($appPassword)) {
-			try {
-				$token = $this->session->getId();
-			} catch (SessionNotAvailableException $ex) {
-				return;
-			}
-		} else {
-			$token = $appPassword;
-		}
-
-		if (!$this->validateToken($token)) {
-			// Session was invalidated
-			$this->logout();
-		}
-	}
-
-	/**
-	 * Checks whether the user is logged in
-	 *
-	 * @return bool if logged in
-	 */
-	public function isLoggedIn() {
-		$user = $this->getUser();
-		if (is_null($user)) {
-			return false;
-		}
-
-		return $user->isEnabled();
-	}
-
-	/**
-	 * set the login name
-	 *
-	 * @param string|null $loginName for the logged in user
-	 */
-	public function setLoginName($loginName) {
-		if (is_null($loginName)) {
-			$this->session->remove('loginname');
-		} else {
-			$this->session->set('loginname', $loginName);
-		}
-	}
-
-	/**
-	 * get the login name of the current user
-	 *
-	 * @return string
-	 */
-	public function getLoginName() {
-		if ($this->activeUser) {
-			return $this->session->get('loginname');
-		} else {
-			$uid = $this->session->get('user_id');
-			if ($uid) {
-				$this->activeUser = $this->manager->get($uid);
-				return $this->session->get('loginname');
-			} else {
-				return null;
-			}
-		}
-	}
-
-	/**
-	 * try to log in with the provided credentials
-	 *
-	 * @param string $uid
-	 * @param string $password
-	 * @return boolean|null
-	 * @throws LoginException
-	 */
-	public function login($uid, $password) {
-		$this->session->regenerateId();
-		if ($this->validateToken($password, $uid)) {
-			return $this->loginWithToken($password);
-		} else {
-			return $this->loginWithPassword($uid, $password);
-		}
-		return false;
-	}
-
-	/**
-	 * Tries to log in a client
-	 *
-	 * Checks token auth enforced
-	 * Checks 2FA enabled
-	 *
-	 * @param string $user
-	 * @param string $password
-	 * @param IRequest $request
-	 * @param OC\Security\Bruteforce\Throttler $throttler
-	 * @throws LoginException
-	 * @throws PasswordLoginForbiddenException
-	 * @return boolean
-	 */
-	public function logClientIn($user,
-								$password,
-								IRequest $request,
-								OC\Security\Bruteforce\Throttler $throttler) {
-		$currentDelay = $throttler->getDelay($request->getRemoteAddress());
-		$throttler->sleepDelay($request->getRemoteAddress());
-
-		$isTokenPassword = $this->isTokenPassword($password);
-		if (!$isTokenPassword && $this->isTokenAuthEnforced()) {
-			throw new PasswordLoginForbiddenException();
-		}
-		if (!$isTokenPassword && $this->isTwoFactorEnforced($user)) {
-			throw new PasswordLoginForbiddenException();
-		}
-		if (!$this->login($user, $password) ) {
-			$users = $this->manager->getByEmail($user);
-			if (count($users) === 1) {
-				return $this->login($users[0]->getUID(), $password);
-			}
-
-			$throttler->registerAttempt('login', $request->getRemoteAddress(), ['uid' => $user]);
-			if($currentDelay === 0) {
-				$throttler->sleepDelay($request->getRemoteAddress());
-			}
-			return false;
-		}
-
-		if ($isTokenPassword) {
-			$this->session->set('app_password', $password);
-		} else if($this->supportsCookies($request)) {
-			// Password login, but cookies supported -> create (browser) session token
-			$this->createSessionToken($request, $this->getUser()->getUID(), $user, $password);
-		}
-
-		return true;
-	}
-
-	protected function supportsCookies(IRequest $request) {
-		if (!is_null($request->getCookie('cookie_test'))) {
-			return true;
-		}
-		setcookie('cookie_test', 'test', $this->timeFacory->getTime() + 3600);
-		return false;
-	}
-
-	private function isTokenAuthEnforced() {
-		return $this->config->getSystemValue('token_auth_enforced', false);
-	}
-
-	protected function isTwoFactorEnforced($username) {
-		Util::emitHook(
-			'\OCA\Files_Sharing\API\Server2Server',
-			'preLoginNameUsedAsUserName',
-			array('uid' => &$username)
-		);
-		$user = $this->manager->get($username);
-		if (is_null($user)) {
-			$users = $this->manager->getByEmail($username);
-			if (count($users) !== 1) {
-				return true;
-			}
-			$user = $users[0];
-		}
-		// DI not possible due to cyclic dependencies :'-/
-		return OC::$server->getTwoFactorAuthManager()->isTwoFactorAuthenticated($user);
-	}
-
-	/**
-	 * Check if the given 'password' is actually a device token
-	 *
-	 * @param string $password
-	 * @return boolean
-	 */
-	public function isTokenPassword($password) {
-		try {
-			$this->tokenProvider->getToken($password);
-			return true;
-		} catch (InvalidTokenException $ex) {
-			return false;
-		}
-	}
-
-	protected function prepareUserLogin() {
-		// TODO: mock/inject/use non-static
-		// Refresh the token
-		\OC::$server->getCsrfTokenManager()->refreshToken();
-		//we need to pass the user name, which may differ from login name
-		$user = $this->getUser()->getUID();
-		OC_Util::setupFS($user);
-		//trigger creation of user home and /files folder
-		\OC::$server->getUserFolder($user);
-	}
-
-	/**
-	 * Tries to login the user with HTTP Basic Authentication
-	 *
-	 * @todo do not allow basic auth if the user is 2FA enforced
-	 * @param IRequest $request
-	 * @return boolean if the login was successful
-	 */
-	public function tryBasicAuthLogin(IRequest $request,
-									  OC\Security\Bruteforce\Throttler $throttler) {
-		if (!empty($request->server['PHP_AUTH_USER']) && !empty($request->server['PHP_AUTH_PW'])) {
-			try {
-				if ($this->logClientIn($request->server['PHP_AUTH_USER'], $request->server['PHP_AUTH_PW'], $request, $throttler)) {
-					/**
-					 * Add DAV authenticated. This should in an ideal world not be
-					 * necessary but the iOS App reads cookies from anywhere instead
-					 * only the DAV endpoint.
-					 * This makes sure that the cookies will be valid for the whole scope
-					 * @see https://github.com/owncloud/core/issues/22893
-					 */
-					$this->session->set(
-						Auth::DAV_AUTHENTICATED, $this->getUser()->getUID()
-					);
-					return true;
-				}
-			} catch (PasswordLoginForbiddenException $ex) {
-				// Nothing to do
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * Log an user in via login name and password
-	 *
-	 * @param string $uid
-	 * @param string $password
-	 * @return boolean
-	 * @throws LoginException if an app canceld the login process or the user is not enabled
-	 */
-	private function loginWithPassword($uid, $password) {
-		$this->manager->emit('\OC\User', 'preLogin', array($uid, $password));
-		$user = $this->manager->checkPassword($uid, $password);
-		if ($user === false) {
-			// Password check failed
-			return false;
-		}
-
-		if ($user->isEnabled()) {
-			$this->setUser($user);
-			$this->setLoginName($uid);
-			$this->manager->emit('\OC\User', 'postLogin', array($user, $password));
-			if ($this->isLoggedIn()) {
-				$this->prepareUserLogin();
-				return true;
-			} else {
-				// injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
-				$message = \OC::$server->getL10N('lib')->t('Login canceled by app');
-				throw new LoginException($message);
-			}
-		} else {
-			// injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
-			$message = \OC::$server->getL10N('lib')->t('User disabled');
-			throw new LoginException($message);
-		}
-		return false;
-	}
-
-	/**
-	 * Log an user in with a given token (id)
-	 *
-	 * @param string $token
-	 * @return boolean
-	 * @throws LoginException if an app canceld the login process or the user is not enabled
-	 */
-	private function loginWithToken($token) {
-		try {
-			$dbToken = $this->tokenProvider->getToken($token);
-		} catch (InvalidTokenException $ex) {
-			return false;
-		}
-		$uid = $dbToken->getUID();
-
-		// When logging in with token, the password must be decrypted first before passing to login hook
-		$password = '';
-		try {
-			$password = $this->tokenProvider->getPassword($dbToken, $token);
-		} catch (PasswordlessTokenException $ex) {
-			// Ignore and use empty string instead
-		}
-
-		$this->manager->emit('\OC\User', 'preLogin', array($uid, $password));
-
-		$user = $this->manager->get($uid);
-		if (is_null($user)) {
-			// user does not exist
-			return false;
-		}
-		if (!$user->isEnabled()) {
-			// disabled users can not log in
-			// injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
-			$message = \OC::$server->getL10N('lib')->t('User disabled');
-			throw new LoginException($message);
-		}
-
-		//login
-		$this->setUser($user);
-		$this->setLoginName($dbToken->getLoginName());
-		$this->manager->emit('\OC\User', 'postLogin', array($user, $password));
-
-		if ($this->isLoggedIn()) {
-			$this->prepareUserLogin();
-		} else {
-			// injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
-			$message = \OC::$server->getL10N('lib')->t('Login canceled by app');
-			throw new LoginException($message);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Create a new session token for the given user credentials
-	 *
-	 * @param IRequest $request
-	 * @param string $uid user UID
-	 * @param string $loginName login name
-	 * @param string $password
-	 * @return boolean
-	 */
-	public function createSessionToken(IRequest $request, $uid, $loginName, $password = null) {
-		if (is_null($this->manager->get($uid))) {
-			// User does not exist
-			return false;
-		}
-		$name = isset($request->server['HTTP_USER_AGENT']) ? $request->server['HTTP_USER_AGENT'] : 'unknown browser';
-		try {
-			$sessionId = $this->session->getId();
-			$pwd = $this->getPassword($password);
-			$this->tokenProvider->generateToken($sessionId, $uid, $loginName, $pwd, $name);
-			return true;
-		} catch (SessionNotAvailableException $ex) {
-			// This can happen with OCC, where a memory session is used
-			// if a memory session is used, we shouldn't create a session token anyway
-			return false;
-		}
-	}
-
-	/**
-	 * Checks if the given password is a token.
-	 * If yes, the password is extracted from the token.
-	 * If no, the same password is returned.
-	 *
-	 * @param string $password either the login password or a device token
-	 * @return string|null the password or null if none was set in the token
-	 */
-	private function getPassword($password) {
-		if (is_null($password)) {
-			// This is surely no token ;-)
-			return null;
-		}
-		try {
-			$token = $this->tokenProvider->getToken($password);
-			try {
-				return $this->tokenProvider->getPassword($token, $password);
-			} catch (PasswordlessTokenException $ex) {
-				return null;
-			}
-		} catch (InvalidTokenException $ex) {
-			return $password;
-		}
-	}
-
-	/**
-	 * @param IToken $dbToken
-	 * @param string $token
-	 * @return boolean
-	 */
-	private function checkTokenCredentials(IToken $dbToken, $token) {
-		// Check whether login credentials are still valid and the user was not disabled
-		// This check is performed each 5 minutes
-		$lastCheck = $dbToken->getLastCheck() ? : 0;
-		$now = $this->timeFacory->getTime();
-		if ($lastCheck > ($now - 60 * 5)) {
-			// Checked performed recently, nothing to do now
-			return true;
-		}
-
-		try {
-			$pwd = $this->tokenProvider->getPassword($dbToken, $token);
-		} catch (InvalidTokenException $ex) {
-			// An invalid token password was used -> log user out
-			return false;
-		} catch (PasswordlessTokenException $ex) {
-			// Token has no password
-
-			if (!is_null($this->activeUser) && !$this->activeUser->isEnabled()) {
-				$this->tokenProvider->invalidateToken($token);
-				return false;
-			}
-
-			$dbToken->setLastCheck($now);
-			$this->tokenProvider->updateToken($dbToken);
-			return true;
-		}
-
-		if ($this->manager->checkPassword($dbToken->getLoginName(), $pwd) === false
-			|| (!is_null($this->activeUser) && !$this->activeUser->isEnabled())) {
-			$this->tokenProvider->invalidateToken($token);
-			// Password has changed or user was disabled -> log user out
-			return false;
-		}
-		$dbToken->setLastCheck($now);
-		$this->tokenProvider->updateToken($dbToken);
-		return true;
-	}
-
-	/**
-	 * Check if the given token exists and performs password/user-enabled checks
-	 *
-	 * Invalidates the token if checks fail
-	 *
-	 * @param string $token
-	 * @param string $user login name
-	 * @return boolean
-	 */
-	private function validateToken($token, $user = null) {
-		try {
-			$dbToken = $this->tokenProvider->getToken($token);
-		} catch (InvalidTokenException $ex) {
-			return false;
-		}
-
-		// Check if login names match
-		if (!is_null($user) && $dbToken->getLoginName() !== $user) {
-			// TODO: this makes it imposssible to use different login names on browser and client
-			// e.g. login by e-mail 'user@example.com' on browser for generating the token will not
-			//      allow to use the client token with the login name 'user'.
-			return false;
-		}
-
-		if (!$this->checkTokenCredentials($dbToken, $token)) {
-			return false;
-		}
-
-		$this->tokenProvider->updateTokenActivity($dbToken);
-
-		return true;
-	}
-
-	/**
-	 * Tries to login the user with auth token header
-	 *
-	 * @todo check remember me cookie
-	 * @return boolean
-	 */
-	public function tryTokenLogin(IRequest $request) {
-		$authHeader = $request->getHeader('Authorization');
-		if (strpos($authHeader, 'token ') === false) {
-			// No auth header, let's try session id
-			try {
-				$token = $this->session->getId();
-			} catch (SessionNotAvailableException $ex) {
-				return false;
-			}
-		} else {
-			$token = substr($authHeader, 6);
-		}
-
-		if (!$this->loginWithToken($token)) {
-			return false;
-		}
-		if(!$this->validateToken($token)) {
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	 * perform login using the magic cookie (remember login)
-	 *
-	 * @param string $uid the username
-	 * @param string $currentToken
-	 * @return bool
-	 */
-	public function loginWithCookie($uid, $currentToken) {
-		$this->session->regenerateId();
-		$this->manager->emit('\OC\User', 'preRememberedLogin', array($uid));
-		$user = $this->manager->get($uid);
-		if (is_null($user)) {
-			// user does not exist
-			return false;
-		}
-
-		// get stored tokens
-		$tokens = OC::$server->getConfig()->getUserKeys($uid, 'login_token');
-		// test cookies token against stored tokens
-		if (!in_array($currentToken, $tokens, true)) {
-			return false;
-		}
-		// replace successfully used token with a new one
-		OC::$server->getConfig()->deleteUserValue($uid, 'login_token', $currentToken);
-		$newToken = OC::$server->getSecureRandom()->generate(32);
-		OC::$server->getConfig()->setUserValue($uid, 'login_token', $newToken, time());
-		$this->setMagicInCookie($user->getUID(), $newToken);
-
-		//login
-		$this->setUser($user);
-		$this->manager->emit('\OC\User', 'postRememberedLogin', array($user));
-		return true;
-	}
-
-	/**
-	 * logout the user from the session
-	 */
-	public function logout() {
-		$this->manager->emit('\OC\User', 'logout');
-		$user = $this->getUser();
-		if (!is_null($user)) {
-			try {
-				$this->tokenProvider->invalidateToken($this->session->getId());
-			} catch (SessionNotAvailableException $ex) {
+    /** @var IUserManager $manager */
+    private $manager;
+
+    /** @var ISession $session */
+    private $session;
+
+    /** @var ITimeFactory */
+    private $timeFacory;
+
+    /** @var IProvider */
+    private $tokenProvider;
+
+    /** @var IConfig */
+    private $config;
+
+    /** @var User $activeUser */
+    protected $activeUser;
+
+    /**
+     * @param IUserManager $manager
+     * @param ISession $session
+     * @param ITimeFactory $timeFacory
+     * @param IProvider $tokenProvider
+     * @param IConfig $config
+     */
+    public function __construct(IUserManager $manager,
+                                ISession $session,
+                                ITimeFactory $timeFacory,
+                                $tokenProvider,
+                                IConfig $config) {
+        $this->manager = $manager;
+        $this->session = $session;
+        $this->timeFacory = $timeFacory;
+        $this->tokenProvider = $tokenProvider;
+        $this->config = $config;
+    }
+
+    /**
+     * @param IProvider $provider
+     */
+    public function setTokenProvider(IProvider $provider) {
+        $this->tokenProvider = $provider;
+    }
+
+    /**
+     * @param string $scope
+     * @param string $method
+     * @param callable $callback
+     */
+    public function listen($scope, $method, callable $callback) {
+        $this->manager->listen($scope, $method, $callback);
+    }
+
+    /**
+     * @param string $scope optional
+     * @param string $method optional
+     * @param callable $callback optional
+     */
+    public function removeListener($scope = null, $method = null, callable $callback = null) {
+        $this->manager->removeListener($scope, $method, $callback);
+    }
+
+    /**
+     * get the manager object
+     *
+     * @return Manager
+     */
+    public function getManager() {
+        return $this->manager;
+    }
+
+    /**
+     * get the session object
+     *
+     * @return ISession
+     */
+    public function getSession() {
+        return $this->session;
+    }
+
+    /**
+     * set the session object
+     *
+     * @param ISession $session
+     */
+    public function setSession(ISession $session) {
+        if ($this->session instanceof ISession) {
+            $this->session->close();
+        }
+        $this->session = $session;
+        $this->activeUser = null;
+    }
+
+    /**
+     * set the currently active user
+     *
+     * @param User|null $user
+     */
+    public function setUser($user) {
+        if (is_null($user)) {
+            $this->session->remove('user_id');
+        } else {
+            $this->session->set('user_id', $user->getUID());
+        }
+        $this->activeUser = $user;
+    }
+
+    /**
+     * get the current active user
+     *
+     * @return IUser|null Current user, otherwise null
+     */
+    public function getUser() {
+        // FIXME: This is a quick'n dirty work-around for the incognito mode as
+        // described at https://github.com/owncloud/core/pull/12912#issuecomment-67391155
+        if (OC_User::isIncognitoMode()) {
+            return null;
+        }
+        if (is_null($this->activeUser)) {
+            $uid = $this->session->get('user_id');
+            if (is_null($uid)) {
+                return null;
+            }
+            $this->activeUser = $this->manager->get($uid);
+            if (is_null($this->activeUser)) {
+                return null;
+            }
+            $this->validateSession();
+        }
+        return $this->activeUser;
+    }
+
+    /**
+     * Validate whether the current session is valid
+     *
+     * - For token-authenticated clients, the token validity is checked
+     * - For browsers, the session token validity is checked
+     */
+    protected function validateSession() {
+        $token = null;
+        $appPassword = $this->session->get('app_password');
+
+        if (is_null($appPassword)) {
+            try {
+                $token = $this->session->getId();
+            } catch (SessionNotAvailableException $ex) {
+                return;
+            }
+        } else {
+            $token = $appPassword;
+        }
+
+        if (!$this->validateToken($token)) {
+            // Session was invalidated
+            $this->logout();
+        }
+    }
+
+    /**
+     * Checks whether the user is logged in
+     *
+     * @return bool if logged in
+     */
+    public function isLoggedIn() {
+        $user = $this->getUser();
+        if (is_null($user)) {
+            return false;
+        }
+
+        return $user->isEnabled();
+    }
+
+    /**
+     * set the login name
+     *
+     * @param string|null $loginName for the logged in user
+     */
+    public function setLoginName($loginName) {
+        if (is_null($loginName)) {
+            $this->session->remove('loginname');
+        } else {
+            $this->session->set('loginname', $loginName);
+        }
+    }
+
+    /**
+     * get the login name of the current user
+     *
+     * @return string
+     */
+    public function getLoginName() {
+        if ($this->activeUser) {
+            return $this->session->get('loginname');
+        } else {
+            $uid = $this->session->get('user_id');
+            if ($uid) {
+                $this->activeUser = $this->manager->get($uid);
+                return $this->session->get('loginname');
+            } else {
+                return null;
+            }
+        }
+    }
+
+    /**
+     * try to log in with the provided credentials
+     *
+     * @param string $uid
+     * @param string $password
+     * @return boolean|null
+     * @throws LoginException
+     */
+    public function login($uid, $password) {
+        $this->session->regenerateId();
+        if ($this->validateToken($password, $uid)) {
+            return $this->loginWithToken($password);
+        } else {
+            return $this->loginWithPassword($uid, $password);
+        }
+        return false;
+    }
+
+    /**
+     * Tries to log in a client
+     *
+     * Checks token auth enforced
+     * Checks 2FA enabled
+     *
+     * @param string $user
+     * @param string $password
+     * @param IRequest $request
+     * @param OC\Security\Bruteforce\Throttler $throttler
+     * @throws LoginException
+     * @throws PasswordLoginForbiddenException
+     * @return boolean
+     */
+    public function logClientIn($user,
+                                $password,
+                                IRequest $request,
+                                OC\Security\Bruteforce\Throttler $throttler) {
+        $currentDelay = $throttler->getDelay($request->getRemoteAddress());
+        $throttler->sleepDelay($request->getRemoteAddress());
+
+        $isTokenPassword = $this->isTokenPassword($password);
+        if (!$isTokenPassword && $this->isTokenAuthEnforced()) {
+            throw new PasswordLoginForbiddenException();
+        }
+        if (!$isTokenPassword && $this->isTwoFactorEnforced($user)) {
+            throw new PasswordLoginForbiddenException();
+        }
+        if (!$this->login($user, $password) ) {
+            $users = $this->manager->getByEmail($user);
+            if (count($users) === 1) {
+                return $this->login($users[0]->getUID(), $password);
+            }
+
+            $throttler->registerAttempt('login', $request->getRemoteAddress(), ['uid' => $user]);
+            if($currentDelay === 0) {
+                $throttler->sleepDelay($request->getRemoteAddress());
+            }
+            return false;
+        }
+
+        if ($isTokenPassword) {
+            $this->session->set('app_password', $password);
+        } else if($this->supportsCookies($request)) {
+            // Password login, but cookies supported -> create (browser) session token
+            $this->createSessionToken($request, $this->getUser()->getUID(), $user, $password);
+        }
+
+        return true;
+    }
+
+    protected function supportsCookies(IRequest $request) {
+        if (!is_null($request->getCookie('cookie_test'))) {
+            return true;
+        }
+        setcookie('cookie_test', 'test', $this->timeFacory->getTime() + 3600);
+        return false;
+    }
+
+    private function isTokenAuthEnforced() {
+        return $this->config->getSystemValue('token_auth_enforced', false);
+    }
+
+    protected function isTwoFactorEnforced($username) {
+        Util::emitHook(
+            '\OCA\Files_Sharing\API\Server2Server',
+            'preLoginNameUsedAsUserName',
+            array('uid' => &$username)
+        );
+        $user = $this->manager->get($username);
+        if (is_null($user)) {
+            $users = $this->manager->getByEmail($username);
+            if (count($users) !== 1) {
+                return true;
+            }
+            $user = $users[0];
+        }
+        // DI not possible due to cyclic dependencies :'-/
+        return OC::$server->getTwoFactorAuthManager()->isTwoFactorAuthenticated($user);
+    }
+
+    /**
+     * Check if the given 'password' is actually a device token
+     *
+     * @param string $password
+     * @return boolean
+     */
+    public function isTokenPassword($password) {
+        try {
+            $this->tokenProvider->getToken($password);
+            return true;
+        } catch (InvalidTokenException $ex) {
+            return false;
+        }
+    }
+
+    protected function prepareUserLogin() {
+        // TODO: mock/inject/use non-static
+        // Refresh the token
+        \OC::$server->getCsrfTokenManager()->refreshToken();
+        //we need to pass the user name, which may differ from login name
+        $user = $this->getUser()->getUID();
+        OC_Util::setupFS($user);
+        //trigger creation of user home and /files folder
+        \OC::$server->getUserFolder($user);
+    }
+
+    /**
+     * Tries to login the user with HTTP Basic Authentication
+     *
+     * @todo do not allow basic auth if the user is 2FA enforced
+     * @param IRequest $request
+     * @return boolean if the login was successful
+     */
+    public function tryBasicAuthLogin(IRequest $request,
+                                        OC\Security\Bruteforce\Throttler $throttler) {
+        if (!empty($request->server['PHP_AUTH_USER']) && !empty($request->server['PHP_AUTH_PW'])) {
+            try {
+                if ($this->logClientIn($request->server['PHP_AUTH_USER'], $request->server['PHP_AUTH_PW'], $request, $throttler)) {
+                    /**
+                     * Add DAV authenticated. This should in an ideal world not be
+                     * necessary but the iOS App reads cookies from anywhere instead
+                     * only the DAV endpoint.
+                     * This makes sure that the cookies will be valid for the whole scope
+                     * @see https://github.com/owncloud/core/issues/22893
+                     */
+                    $this->session->set(
+                        Auth::DAV_AUTHENTICATED, $this->getUser()->getUID()
+                    );
+                    return true;
+                }
+            } catch (PasswordLoginForbiddenException $ex) {
+                // Nothing to do
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Log an user in via login name and password
+     *
+     * @param string $uid
+     * @param string $password
+     * @return boolean
+     * @throws LoginException if an app canceld the login process or the user is not enabled
+     */
+    private function loginWithPassword($uid, $password) {
+        $this->manager->emit('\OC\User', 'preLogin', array($uid, $password));
+        $user = $this->manager->checkPassword($uid, $password);
+        if ($user === false) {
+            // Password check failed
+            return false;
+        }
+
+        if ($user->isEnabled()) {
+            $this->setUser($user);
+            $this->setLoginName($uid);
+            $this->manager->emit('\OC\User', 'postLogin', array($user, $password));
+            if ($this->isLoggedIn()) {
+                $this->prepareUserLogin();
+                return true;
+            } else {
+                // injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
+                $message = \OC::$server->getL10N('lib')->t('Login canceled by app');
+                throw new LoginException($message);
+            }
+        } else {
+            // injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
+            $message = \OC::$server->getL10N('lib')->t('User disabled');
+            throw new LoginException($message);
+        }
+        return false;
+    }
+
+    /**
+     * Log an user in with a given token (id)
+     *
+     * @param string $token
+     * @return boolean
+     * @throws LoginException if an app canceld the login process or the user is not enabled
+     */
+    private function loginWithToken($token) {
+        try {
+            $dbToken = $this->tokenProvider->getToken($token);
+        } catch (InvalidTokenException $ex) {
+            return false;
+        }
+        $uid = $dbToken->getUID();
+
+        // When logging in with token, the password must be decrypted first before passing to login hook
+        $password = '';
+        try {
+            $password = $this->tokenProvider->getPassword($dbToken, $token);
+        } catch (PasswordlessTokenException $ex) {
+            // Ignore and use empty string instead
+        }
+
+        $this->manager->emit('\OC\User', 'preLogin', array($uid, $password));
+
+        $user = $this->manager->get($uid);
+        if (is_null($user)) {
+            // user does not exist
+            return false;
+        }
+        if (!$user->isEnabled()) {
+            // disabled users can not log in
+            // injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
+            $message = \OC::$server->getL10N('lib')->t('User disabled');
+            throw new LoginException($message);
+        }
+
+        //login
+        $this->setUser($user);
+        $this->setLoginName($dbToken->getLoginName());
+        $this->manager->emit('\OC\User', 'postLogin', array($user, $password));
+
+        if ($this->isLoggedIn()) {
+            $this->prepareUserLogin();
+        } else {
+            // injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
+            $message = \OC::$server->getL10N('lib')->t('Login canceled by app');
+            throw new LoginException($message);
+        }
+
+        return true;
+    }
+
+    /**
+     * Create a new session token for the given user credentials
+     *
+     * @param IRequest $request
+     * @param string $uid user UID
+     * @param string $loginName login name
+     * @param string $password
+     * @return boolean
+     */
+    public function createSessionToken(IRequest $request, $uid, $loginName, $password = null) {
+        if (is_null($this->manager->get($uid))) {
+            // User does not exist
+            return false;
+        }
+        $name = isset($request->server['HTTP_USER_AGENT']) ? $request->server['HTTP_USER_AGENT'] : 'unknown browser';
+        try {
+            $sessionId = $this->session->getId();
+            $pwd = $this->getPassword($password);
+            $this->tokenProvider->generateToken($sessionId, $uid, $loginName, $pwd, $name);
+            return true;
+        } catch (SessionNotAvailableException $ex) {
+            // This can happen with OCC, where a memory session is used
+            // if a memory session is used, we shouldn't create a session token anyway
+            return false;
+        }
+    }
+
+    /**
+     * Checks if the given password is a token.
+     * If yes, the password is extracted from the token.
+     * If no, the same password is returned.
+     *
+     * @param string $password either the login password or a device token
+     * @return string|null the password or null if none was set in the token
+     */
+    private function getPassword($password) {
+        if (is_null($password)) {
+            // This is surely no token ;-)
+            return null;
+        }
+        try {
+            $token = $this->tokenProvider->getToken($password);
+            try {
+                return $this->tokenProvider->getPassword($token, $password);
+            } catch (PasswordlessTokenException $ex) {
+                return null;
+            }
+        } catch (InvalidTokenException $ex) {
+            return $password;
+        }
+    }
+
+    /**
+     * @param IToken $dbToken
+     * @param string $token
+     * @return boolean
+     */
+    private function checkTokenCredentials(IToken $dbToken, $token) {
+        // Check whether login credentials are still valid and the user was not disabled
+        // This check is performed each 5 minutes
+        $lastCheck = $dbToken->getLastCheck() ? : 0;
+        $now = $this->timeFacory->getTime();
+        if ($lastCheck > ($now - 60 * 5)) {
+            // Checked performed recently, nothing to do now
+            return true;
+        }
+
+        try {
+            $pwd = $this->tokenProvider->getPassword($dbToken, $token);
+        } catch (InvalidTokenException $ex) {
+            // An invalid token password was used -> log user out
+            return false;
+        } catch (PasswordlessTokenException $ex) {
+            // Token has no password
+
+            if (!is_null($this->activeUser) && !$this->activeUser->isEnabled()) {
+                $this->tokenProvider->invalidateToken($token);
+                return false;
+            }
+
+            $dbToken->setLastCheck($now);
+            $this->tokenProvider->updateToken($dbToken);
+            return true;
+        }
+
+        if ($this->manager->checkPassword($dbToken->getLoginName(), $pwd) === false
+            || (!is_null($this->activeUser) && !$this->activeUser->isEnabled())) {
+            $this->tokenProvider->invalidateToken($token);
+            // Password has changed or user was disabled -> log user out
+            return false;
+        }
+        $dbToken->setLastCheck($now);
+        $this->tokenProvider->updateToken($dbToken);
+        return true;
+    }
+
+    /**
+     * Check if the given token exists and performs password/user-enabled checks
+     *
+     * Invalidates the token if checks fail
+     *
+     * @param string $token
+     * @param string $user login name
+     * @return boolean
+     */
+    private function validateToken($token, $user = null) {
+        try {
+            $dbToken = $this->tokenProvider->getToken($token);
+        } catch (InvalidTokenException $ex) {
+            return false;
+        }
+
+        // Check if login names match
+        if (!is_null($user) && $dbToken->getLoginName() !== $user) {
+            // TODO: this makes it imposssible to use different login names on browser and client
+            // e.g. login by e-mail 'user@example.com' on browser for generating the token will not
+            //      allow to use the client token with the login name 'user'.
+            return false;
+        }
+
+        if (!$this->checkTokenCredentials($dbToken, $token)) {
+            return false;
+        }
+
+        $this->tokenProvider->updateTokenActivity($dbToken);
+
+        return true;
+    }
+
+    /**
+     * Tries to login the user with auth token header
+     *
+     * @todo check remember me cookie
+     * @return boolean
+     */
+    public function tryTokenLogin(IRequest $request) {
+        $authHeader = $request->getHeader('Authorization');
+        if (strpos($authHeader, 'token ') === false) {
+            // No auth header, let's try session id
+            try {
+                $token = $this->session->getId();
+            } catch (SessionNotAvailableException $ex) {
+                return false;
+            }
+        } else {
+            $token = substr($authHeader, 6);
+        }
+
+        if (!$this->loginWithToken($token)) {
+            return false;
+        }
+        if(!$this->validateToken($token)) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * perform login using the magic cookie (remember login)
+     *
+     * @param string $uid the username
+     * @param string $currentToken
+     * @return bool
+     */
+    public function loginWithCookie($uid, $currentToken) {
+        $this->session->regenerateId();
+        $this->manager->emit('\OC\User', 'preRememberedLogin', array($uid));
+        $user = $this->manager->get($uid);
+        if (is_null($user)) {
+            // user does not exist
+            return false;
+        }
+
+        // get stored tokens
+        $tokens = OC::$server->getConfig()->getUserKeys($uid, 'login_token');
+        // test cookies token against stored tokens
+        if (!in_array($currentToken, $tokens, true)) {
+            return false;
+        }
+        // replace successfully used token with a new one
+        OC::$server->getConfig()->deleteUserValue($uid, 'login_token', $currentToken);
+        $newToken = OC::$server->getSecureRandom()->generate(32);
+        OC::$server->getConfig()->setUserValue($uid, 'login_token', $newToken, time());
+        $this->setMagicInCookie($user->getUID(), $newToken);
+
+        //login
+        $this->setUser($user);
+        $this->manager->emit('\OC\User', 'postRememberedLogin', array($user));
+        return true;
+    }
+
+    /**
+     * logout the user from the session
+     */
+    public function logout() {
+        $this->manager->emit('\OC\User', 'logout');
+        $user = $this->getUser();
+        if (!is_null($user)) {
+            try {
+                $this->tokenProvider->invalidateToken($this->session->getId());
+            } catch (SessionNotAvailableException $ex) {
 				
-			}
-		}
-		$this->setUser(null);
-		$this->setLoginName(null);
-		$this->unsetMagicInCookie();
-		$this->session->clear();
-	}
-
-	/**
-	 * Set cookie value to use in next page load
-	 *
-	 * @param string $username username to be set
-	 * @param string $token
-	 */
-	public function setMagicInCookie($username, $token) {
-		$secureCookie = OC::$server->getRequest()->getServerProtocol() === 'https';
-		$expires = time() + OC::$server->getConfig()->getSystemValue('remember_login_cookie_lifetime', 60 * 60 * 24 * 15);
-		setcookie('oc_username', $username, $expires, OC::$WEBROOT, '', $secureCookie, true);
-		setcookie('oc_token', $token, $expires, OC::$WEBROOT, '', $secureCookie, true);
-		setcookie('oc_remember_login', '1', $expires, OC::$WEBROOT, '', $secureCookie, true);
-	}
-
-	/**
-	 * Remove cookie for "remember username"
-	 */
-	public function unsetMagicInCookie() {
-		//TODO: DI for cookies and IRequest
-		$secureCookie = OC::$server->getRequest()->getServerProtocol() === 'https';
-
-		unset($_COOKIE['oc_username']); //TODO: DI
-		unset($_COOKIE['oc_token']);
-		unset($_COOKIE['oc_remember_login']);
-		setcookie('oc_username', '', time() - 3600, OC::$WEBROOT, '', $secureCookie, true);
-		setcookie('oc_token', '', time() - 3600, OC::$WEBROOT, '', $secureCookie, true);
-		setcookie('oc_remember_login', '', time() - 3600, OC::$WEBROOT, '', $secureCookie, true);
-		// old cookies might be stored under /webroot/ instead of /webroot
-		// and Firefox doesn't like it!
-		setcookie('oc_username', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
-		setcookie('oc_token', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
-		setcookie('oc_remember_login', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
-	}
-
-	/**
-	 * Update password of the browser session token if there is one
-	 *
-	 * @param string $password
-	 */
-	public function updateSessionTokenPassword($password) {
-		try {
-			$sessionId = $this->session->getId();
-			$token = $this->tokenProvider->getToken($sessionId);
-			$this->tokenProvider->setPassword($token, $sessionId, $password);
-		} catch (SessionNotAvailableException $ex) {
-			// Nothing to do
-		} catch (InvalidTokenException $ex) {
-			// Nothing to do
-		}
-	}
+            }
+        }
+        $this->setUser(null);
+        $this->setLoginName(null);
+        $this->unsetMagicInCookie();
+        $this->session->clear();
+    }
+
+    /**
+     * Set cookie value to use in next page load
+     *
+     * @param string $username username to be set
+     * @param string $token
+     */
+    public function setMagicInCookie($username, $token) {
+        $secureCookie = OC::$server->getRequest()->getServerProtocol() === 'https';
+        $expires = time() + OC::$server->getConfig()->getSystemValue('remember_login_cookie_lifetime', 60 * 60 * 24 * 15);
+        setcookie('oc_username', $username, $expires, OC::$WEBROOT, '', $secureCookie, true);
+        setcookie('oc_token', $token, $expires, OC::$WEBROOT, '', $secureCookie, true);
+        setcookie('oc_remember_login', '1', $expires, OC::$WEBROOT, '', $secureCookie, true);
+    }
+
+    /**
+     * Remove cookie for "remember username"
+     */
+    public function unsetMagicInCookie() {
+        //TODO: DI for cookies and IRequest
+        $secureCookie = OC::$server->getRequest()->getServerProtocol() === 'https';
+
+        unset($_COOKIE['oc_username']); //TODO: DI
+        unset($_COOKIE['oc_token']);
+        unset($_COOKIE['oc_remember_login']);
+        setcookie('oc_username', '', time() - 3600, OC::$WEBROOT, '', $secureCookie, true);
+        setcookie('oc_token', '', time() - 3600, OC::$WEBROOT, '', $secureCookie, true);
+        setcookie('oc_remember_login', '', time() - 3600, OC::$WEBROOT, '', $secureCookie, true);
+        // old cookies might be stored under /webroot/ instead of /webroot
+        // and Firefox doesn't like it!
+        setcookie('oc_username', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
+        setcookie('oc_token', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
+        setcookie('oc_remember_login', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
+    }
+
+    /**
+     * Update password of the browser session token if there is one
+     *
+     * @param string $password
+     */
+    public function updateSessionTokenPassword($password) {
+        try {
+            $sessionId = $this->session->getId();
+            $token = $this->tokenProvider->getToken($sessionId);
+            $this->tokenProvider->setPassword($token, $sessionId, $password);
+        } catch (SessionNotAvailableException $ex) {
+            // Nothing to do
+        } catch (InvalidTokenException $ex) {
+            // Nothing to do
+        }
+    }
 
 }

Spacing +8 added lines, -8 removed lines

@@ -321,14 +321,14 @@ 
 		if (!$isTokenPassword && $this->isTwoFactorEnforced($user)) {
 			throw new PasswordLoginForbiddenException();
 		}
-		if (!$this->login($user, $password) ) {
+		if (!$this->login($user, $password)) {
 			$users = $this->manager->getByEmail($user);
 			if (count($users) === 1) {
 				return $this->login($users[0]->getUID(), $password);
 			}
 
 			$throttler->registerAttempt('login', $request->getRemoteAddress(), ['uid' => $user]);
-			if($currentDelay === 0) {
+			if ($currentDelay === 0) {
 				$throttler->sleepDelay($request->getRemoteAddress());
 			}
 			return false;
@@ -336,7 +336,7 @@ 
 
 		if ($isTokenPassword) {
 			$this->session->set('app_password', $password);
-		} else if($this->supportsCookies($request)) {
+		} else if ($this->supportsCookies($request)) {
 			// Password login, but cookies supported -> create (browser) session token
 			$this->createSessionToken($request, $this->getUser()->getUID(), $user, $password);
 		}
@@ -580,7 +580,7 @@ 
 	private function checkTokenCredentials(IToken $dbToken, $token) {
 		// Check whether login credentials are still valid and the user was not disabled
 		// This check is performed each 5 minutes
-		$lastCheck = $dbToken->getLastCheck() ? : 0;
+		$lastCheck = $dbToken->getLastCheck() ?: 0;
 		$now = $this->timeFacory->getTime();
 		if ($lastCheck > ($now - 60 * 5)) {
 			// Checked performed recently, nothing to do now
@@ -671,7 +671,7 @@ 
 		if (!$this->loginWithToken($token)) {
 			return false;
 		}
-		if(!$this->validateToken($token)) {
+		if (!$this->validateToken($token)) {
 			return false;
 		}
 		return true;
@@ -759,9 +759,9 @@ 
 		setcookie('oc_remember_login', '', time() - 3600, OC::$WEBROOT, '', $secureCookie, true);
 		// old cookies might be stored under /webroot/ instead of /webroot
 		// and Firefox doesn't like it!
-		setcookie('oc_username', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
-		setcookie('oc_token', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
-		setcookie('oc_remember_login', '', time() - 3600, OC::$WEBROOT . '/', '', $secureCookie, true);
+		setcookie('oc_username', '', time() - 3600, OC::$WEBROOT.'/', '', $secureCookie, true);
+		setcookie('oc_token', '', time() - 3600, OC::$WEBROOT.'/', '', $secureCookie, true);
+		setcookie('oc_remember_login', '', time() - 3600, OC::$WEBROOT.'/', '', $secureCookie, true);
 	}
 
 	/**

lib/private/legacy/app.php

Doc Comments +3 added lines

@@ -1333,6 +1333,9 @@
 		}
 	}
 
+	/**
+	 * @param string $lang
+	 */
 	protected static function findBestL10NOption($options, $lang) {
 		$fallback = $similarLangFallback = $englishFallback = false;
 

Indentation +1366 added lines, -1366 removed lines

@@ -59,1370 +59,1370 @@
  * upgrading and removing apps.
  */
 class OC_App {
-	static private $appVersion = [];
-	static private $adminForms = array();
-	static private $personalForms = array();
-	static private $appInfo = array();
-	static private $appTypes = array();
-	static private $loadedApps = array();
-	static private $altLogin = array();
-	static private $alreadyRegistered = [];
-	const officialApp = 200;
-
-	/**
-	 * clean the appId
-	 *
-	 * @param string|boolean $app AppId that needs to be cleaned
-	 * @return string
-	 */
-	public static function cleanAppId($app) {
-		return str_replace(array('\0', '/', '\\', '..'), '', $app);
-	}
-
-	/**
-	 * Check if an app is loaded
-	 *
-	 * @param string $app
-	 * @return bool
-	 */
-	public static function isAppLoaded($app) {
-		return in_array($app, self::$loadedApps, true);
-	}
-
-	/**
-	 * loads all apps
-	 *
-	 * @param string[] | string | null $types
-	 * @return bool
-	 *
-	 * This function walks through the ownCloud directory and loads all apps
-	 * it can find. A directory contains an app if the file /appinfo/info.xml
-	 * exists.
-	 *
-	 * if $types is set, only apps of those types will be loaded
-	 */
-	public static function loadApps($types = null) {
-		if (\OC::$server->getSystemConfig()->getValue('maintenance', false)) {
-			return false;
-		}
-		// Load the enabled apps here
-		$apps = self::getEnabledApps();
-
-		// Add each apps' folder as allowed class path
-		foreach($apps as $app) {
-			$path = self::getAppPath($app);
-			if($path !== false) {
-				self::registerAutoloading($app, $path);
-			}
-		}
-
-		// prevent app.php from printing output
-		ob_start();
-		foreach ($apps as $app) {
-			if ((is_null($types) or self::isType($app, $types)) && !in_array($app, self::$loadedApps)) {
-				self::loadApp($app);
-			}
-		}
-		ob_end_clean();
-
-		return true;
-	}
-
-	/**
-	 * load a single app
-	 *
-	 * @param string $app
-	 * @param bool $checkUpgrade whether an upgrade check should be done
-	 * @throws \OC\NeedsUpdateException
-	 */
-	public static function loadApp($app, $checkUpgrade = true) {
-		self::$loadedApps[] = $app;
-		$appPath = self::getAppPath($app);
-		if($appPath === false) {
-			return;
-		}
-
-		// in case someone calls loadApp() directly
-		self::registerAutoloading($app, $appPath);
-
-		if (is_file($appPath . '/appinfo/app.php')) {
-			\OC::$server->getEventLogger()->start('load_app_' . $app, 'Load app: ' . $app);
-			if ($checkUpgrade and self::shouldUpgrade($app)) {
-				throw new \OC\NeedsUpdateException();
-			}
-			self::requireAppFile($app);
-			if (self::isType($app, array('authentication'))) {
-				// since authentication apps affect the "is app enabled for group" check,
-				// the enabled apps cache needs to be cleared to make sure that the
-				// next time getEnableApps() is called it will also include apps that were
-				// enabled for groups
-				self::$enabledAppsCache = array();
-			}
-			\OC::$server->getEventLogger()->end('load_app_' . $app);
-		}
-	}
-
-	/**
-	 * @internal
-	 * @param string $app
-	 * @param string $path
-	 */
-	public static function registerAutoloading($app, $path) {
-		$key = $app . '-' . $path;
-		if(isset(self::$alreadyRegistered[$key])) {
-			return;
-		}
-		self::$alreadyRegistered[$key] = true;
-		// Register on PSR-4 composer autoloader
-		$appNamespace = \OC\AppFramework\App::buildAppNamespace($app);
-		\OC::$composerAutoloader->addPsr4($appNamespace . '\\', $path . '/lib/', true);
-		if (defined('PHPUNIT_RUN') || defined('CLI_TEST_RUN')) {
-			\OC::$composerAutoloader->addPsr4($appNamespace . '\\Tests\\', $path . '/tests/', true);
-		}
-
-		// Register on legacy autoloader
-		\OC::$loader->addValidRoot($path);
-	}
-
-	/**
-	 * Load app.php from the given app
-	 *
-	 * @param string $app app name
-	 */
-	private static function requireAppFile($app) {
-		try {
-			// encapsulated here to avoid variable scope conflicts
-			require_once $app . '/appinfo/app.php';
-		} catch (Error $ex) {
-			\OC::$server->getLogger()->logException($ex);
-			$blacklist = \OC::$server->getAppManager()->getAlwaysEnabledApps();
-			if (!in_array($app, $blacklist)) {
-				self::disable($app);
-			}
-		}
-	}
-
-	/**
-	 * check if an app is of a specific type
-	 *
-	 * @param string $app
-	 * @param string|array $types
-	 * @return bool
-	 */
-	public static function isType($app, $types) {
-		if (is_string($types)) {
-			$types = array($types);
-		}
-		$appTypes = self::getAppTypes($app);
-		foreach ($types as $type) {
-			if (array_search($type, $appTypes) !== false) {
-				return true;
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * get the types of an app
-	 *
-	 * @param string $app
-	 * @return array
-	 */
-	private static function getAppTypes($app) {
-		//load the cache
-		if (count(self::$appTypes) == 0) {
-			self::$appTypes = \OC::$server->getAppConfig()->getValues(false, 'types');
-		}
-
-		if (isset(self::$appTypes[$app])) {
-			return explode(',', self::$appTypes[$app]);
-		} else {
-			return array();
-		}
-	}
-
-	/**
-	 * read app types from info.xml and cache them in the database
-	 */
-	public static function setAppTypes($app) {
-		$appData = self::getAppInfo($app);
-		if(!is_array($appData)) {
-			return;
-		}
-
-		if (isset($appData['types'])) {
-			$appTypes = implode(',', $appData['types']);
-		} else {
-			$appTypes = '';
-		}
-
-		\OC::$server->getAppConfig()->setValue($app, 'types', $appTypes);
-	}
-
-	/**
-	 * check if app is shipped
-	 *
-	 * @param string $appId the id of the app to check
-	 * @return bool
-	 *
-	 * Check if an app that is installed is a shipped app or installed from the appstore.
-	 */
-	public static function isShipped($appId) {
-		return \OC::$server->getAppManager()->isShipped($appId);
-	}
-
-	/**
-	 * get all enabled apps
-	 */
-	protected static $enabledAppsCache = array();
-
-	/**
-	 * Returns apps enabled for the current user.
-	 *
-	 * @param bool $forceRefresh whether to refresh the cache
-	 * @param bool $all whether to return apps for all users, not only the
-	 * currently logged in one
-	 * @return string[]
-	 */
-	public static function getEnabledApps($forceRefresh = false, $all = false) {
-		if (!\OC::$server->getSystemConfig()->getValue('installed', false)) {
-			return array();
-		}
-		// in incognito mode or when logged out, $user will be false,
-		// which is also the case during an upgrade
-		$appManager = \OC::$server->getAppManager();
-		if ($all) {
-			$user = null;
-		} else {
-			$user = \OC::$server->getUserSession()->getUser();
-		}
-
-		if (is_null($user)) {
-			$apps = $appManager->getInstalledApps();
-		} else {
-			$apps = $appManager->getEnabledAppsForUser($user);
-		}
-		$apps = array_filter($apps, function ($app) {
-			return $app !== 'files';//we add this manually
-		});
-		sort($apps);
-		array_unshift($apps, 'files');
-		return $apps;
-	}
-
-	/**
-	 * checks whether or not an app is enabled
-	 *
-	 * @param string $app app
-	 * @return bool
-	 *
-	 * This function checks whether or not an app is enabled.
-	 */
-	public static function isEnabled($app) {
-		return \OC::$server->getAppManager()->isEnabledForUser($app);
-	}
-
-	/**
-	 * enables an app
-	 *
-	 * @param mixed $app app
-	 * @param array $groups (optional) when set, only these groups will have access to the app
-	 * @throws \Exception
-	 * @return void
-	 *
-	 * This function set an app as enabled in appconfig.
-	 */
-	public static function enable($app, $groups = null) {
-		self::$enabledAppsCache = array(); // flush
-		if (!Installer::isInstalled($app)) {
-			$app = self::installApp($app);
-		}
-
-		$appManager = \OC::$server->getAppManager();
-		if (!is_null($groups)) {
-			$groupManager = \OC::$server->getGroupManager();
-			$groupsList = [];
-			foreach ($groups as $group) {
-				$groupItem = $groupManager->get($group);
-				if ($groupItem instanceof \OCP\IGroup) {
-					$groupsList[] = $groupManager->get($group);
-				}
-			}
-			$appManager->enableAppForGroups($app, $groupsList);
-		} else {
-			$appManager->enableApp($app);
-		}
-
-		$info = self::getAppInfo($app);
-		if(isset($info['settings']) && is_array($info['settings'])) {
-			$appPath = self::getAppPath($app);
-			self::registerAutoloading($app, $appPath);
-			\OC::$server->getSettingsManager()->setupSettings($info['settings']);
-		}
-	}
-
-	/**
-	 * @param string $app
-	 * @return int
-	 */
-	private static function downloadApp($app) {
-		$ocsClient = new OCSClient(
-			\OC::$server->getHTTPClientService(),
-			\OC::$server->getConfig(),
-			\OC::$server->getLogger()
-		);
-		$appData = $ocsClient->getApplication($app, \OCP\Util::getVersion());
-		$download = $ocsClient->getApplicationDownload($app, \OCP\Util::getVersion());
-		if(isset($download['downloadlink']) and $download['downloadlink']!='') {
-			// Replace spaces in download link without encoding entire URL
-			$download['downloadlink'] = str_replace(' ', '%20', $download['downloadlink']);
-			$info = array('source' => 'http', 'href' => $download['downloadlink'], 'appdata' => $appData);
-			$app = Installer::installApp($info);
-		}
-		return $app;
-	}
-
-	/**
-	 * @param string $app
-	 * @return bool
-	 */
-	public static function removeApp($app) {
-		if (self::isShipped($app)) {
-			return false;
-		}
-
-		return Installer::removeApp($app);
-	}
-
-	/**
-	 * This function set an app as disabled in appconfig.
-	 *
-	 * @param string $app app
-	 * @throws Exception
-	 */
-	public static function disable($app) {
-		// Convert OCS ID to regular application identifier
-		if(self::getInternalAppIdByOcs($app) !== false) {
-			$app = self::getInternalAppIdByOcs($app);
-		}
-
-		// flush
-		self::$enabledAppsCache = array();
-
-		// run uninstall steps
-		$appData = OC_App::getAppInfo($app);
-		if (!is_null($appData)) {
-			OC_App::executeRepairSteps($app, $appData['repair-steps']['uninstall']);
-		}
-
-		// emit disable hook - needed anymore ?
-		\OC_Hook::emit('OC_App', 'pre_disable', array('app' => $app));
-
-		// finally disable it
-		$appManager = \OC::$server->getAppManager();
-		$appManager->disableApp($app);
-	}
-
-	/**
-	 * Returns the Settings Navigation
-	 *
-	 * @return string[]
-	 *
-	 * This function returns an array containing all settings pages added. The
-	 * entries are sorted by the key 'order' ascending.
-	 */
-	public static function getSettingsNavigation() {
-		$l = \OC::$server->getL10N('lib');
-		$urlGenerator = \OC::$server->getURLGenerator();
-
-		$settings = array();
-		// by default, settings only contain the help menu
-		if (OC_Util::getEditionString() === '' &&
-			\OC::$server->getSystemConfig()->getValue('knowledgebaseenabled', true) == true
-		) {
-			$settings = array(
-				array(
-					"id" => "help",
-					"order" => 1000,
-					"href" => $urlGenerator->linkToRoute('settings_help'),
-					"name" => $l->t("Help"),
-					"icon" => $urlGenerator->imagePath("settings", "help.svg")
-				)
-			);
-		}
-
-		// if the user is logged-in
-		if (OC_User::isLoggedIn()) {
-			// personal menu
-			$settings[] = array(
-				"id" => "personal",
-				"order" => 1,
-				"href" => $urlGenerator->linkToRoute('settings_personal'),
-				"name" => $l->t("Personal"),
-				"icon" => $urlGenerator->imagePath("settings", "personal.svg")
-			);
-
-			//SubAdmins are also allowed to access user management
-			$userObject = \OC::$server->getUserSession()->getUser();
-			$isSubAdmin = false;
-			if($userObject !== null) {
-				$isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
-			}
-			if ($isSubAdmin) {
-				// admin users menu
-				$settings[] = array(
-					"id" => "core_users",
-					"order" => 2,
-					"href" => $urlGenerator->linkToRoute('settings_users'),
-					"name" => $l->t("Users"),
-					"icon" => $urlGenerator->imagePath("settings", "users.svg")
-				);
-			}
-
-			// if the user is an admin
-			if (OC_User::isAdminUser(OC_User::getUser())) {
-				// admin settings
-				$settings[] = array(
-					"id" => "admin",
-					"order" => 1000,
-					"href" => $urlGenerator->linkToRoute('settings.AdminSettings.index'),
-					"name" => $l->t("Admin"),
-					"icon" => $urlGenerator->imagePath("settings", "admin.svg")
-				);
-			}
-		}
-
-		$navigation = self::proceedNavigation($settings);
-		return $navigation;
-	}
-
-	// This is private as well. It simply works, so don't ask for more details
-	private static function proceedNavigation($list) {
-		$activeApp = OC::$server->getNavigationManager()->getActiveEntry();
-		foreach ($list as &$navEntry) {
-			if ($navEntry['id'] == $activeApp) {
-				$navEntry['active'] = true;
-			} else {
-				$navEntry['active'] = false;
-			}
-		}
-		unset($navEntry);
-
-		usort($list, function($a, $b) {
-			if (isset($a['order']) && isset($b['order'])) {
-				return ($a['order'] < $b['order']) ? -1 : 1;
-			} else if (isset($a['order']) || isset($b['order'])) {
-				return isset($a['order']) ? -1 : 1;
-			} else {
-				return ($a['name'] < $b['name']) ? -1 : 1;
-			}
-		});
-
-		return $list;
-	}
-
-	/**
-	 * Get the path where to install apps
-	 *
-	 * @return string|false
-	 */
-	public static function getInstallPath() {
-		if (\OC::$server->getSystemConfig()->getValue('appstoreenabled', true) == false) {
-			return false;
-		}
-
-		foreach (OC::$APPSROOTS as $dir) {
-			if (isset($dir['writable']) && $dir['writable'] === true) {
-				return $dir['path'];
-			}
-		}
-
-		\OCP\Util::writeLog('core', 'No application directories are marked as writable.', \OCP\Util::ERROR);
-		return null;
-	}
-
-
-	/**
-	 * search for an app in all app-directories
-	 *
-	 * @param string $appId
-	 * @return false|string
-	 */
-	protected static function findAppInDirectories($appId) {
-		$sanitizedAppId = self::cleanAppId($appId);
-		if($sanitizedAppId !== $appId) {
-			return false;
-		}
-		static $app_dir = array();
-
-		if (isset($app_dir[$appId])) {
-			return $app_dir[$appId];
-		}
-
-		$possibleApps = array();
-		foreach (OC::$APPSROOTS as $dir) {
-			if (file_exists($dir['path'] . '/' . $appId)) {
-				$possibleApps[] = $dir;
-			}
-		}
-
-		if (empty($possibleApps)) {
-			return false;
-		} elseif (count($possibleApps) === 1) {
-			$dir = array_shift($possibleApps);
-			$app_dir[$appId] = $dir;
-			return $dir;
-		} else {
-			$versionToLoad = array();
-			foreach ($possibleApps as $possibleApp) {
-				$version = self::getAppVersionByPath($possibleApp['path']);
-				if (empty($versionToLoad) || version_compare($version, $versionToLoad['version'], '>')) {
-					$versionToLoad = array(
-						'dir' => $possibleApp,
-						'version' => $version,
-					);
-				}
-			}
-			$app_dir[$appId] = $versionToLoad['dir'];
-			return $versionToLoad['dir'];
-			//TODO - write test
-		}
-	}
-
-	/**
-	 * Get the directory for the given app.
-	 * If the app is defined in multiple directories, the first one is taken. (false if not found)
-	 *
-	 * @param string $appId
-	 * @return string|false
-	 */
-	public static function getAppPath($appId) {
-		if ($appId === null || trim($appId) === '') {
-			return false;
-		}
-
-		if (($dir = self::findAppInDirectories($appId)) != false) {
-			return $dir['path'] . '/' . $appId;
-		}
-		return false;
-	}
-
-
-	/**
-	 * check if an app's directory is writable
-	 *
-	 * @param string $appId
-	 * @return bool
-	 */
-	public static function isAppDirWritable($appId) {
-		$path = self::getAppPath($appId);
-		return ($path !== false) ? is_writable($path) : false;
-	}
-
-	/**
-	 * Get the path for the given app on the access
-	 * If the app is defined in multiple directories, the first one is taken. (false if not found)
-	 *
-	 * @param string $appId
-	 * @return string|false
-	 */
-	public static function getAppWebPath($appId) {
-		if (($dir = self::findAppInDirectories($appId)) != false) {
-			return OC::$WEBROOT . $dir['url'] . '/' . $appId;
-		}
-		return false;
-	}
-
-	/**
-	 * get the last version of the app from appinfo/info.xml
-	 *
-	 * @param string $appId
-	 * @return string
-	 */
-	public static function getAppVersion($appId) {
-		if (!isset(self::$appVersion[$appId])) {
-			$file = self::getAppPath($appId);
-			self::$appVersion[$appId] = ($file !== false) ? self::getAppVersionByPath($file) : '0';
-		}
-		return self::$appVersion[$appId];
-	}
-
-	/**
-	 * get app's version based on it's path
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public static function getAppVersionByPath($path) {
-		$infoFile = $path . '/appinfo/info.xml';
-		$appData = self::getAppInfo($infoFile, true);
-		return isset($appData['version']) ? $appData['version'] : '';
-	}
-
-
-	/**
-	 * Read all app metadata from the info.xml file
-	 *
-	 * @param string $appId id of the app or the path of the info.xml file
-	 * @param bool $path
-	 * @param string $lang
-	 * @return array|null
-	 * @note all data is read from info.xml, not just pre-defined fields
-	 */
-	public static function getAppInfo($appId, $path = false, $lang = null) {
-		if ($path) {
-			$file = $appId;
-		} else {
-			if ($lang === null && isset(self::$appInfo[$appId])) {
-				return self::$appInfo[$appId];
-			}
-			$appPath = self::getAppPath($appId);
-			if($appPath === false) {
-				return null;
-			}
-			$file = $appPath . '/appinfo/info.xml';
-		}
-
-		$parser = new \OC\App\InfoParser(\OC::$server->getURLGenerator());
-		$data = $parser->parse($file);
-
-		if (is_array($data)) {
-			$data = OC_App::parseAppInfo($data, $lang);
-		}
-		if(isset($data['ocsid'])) {
-			$storedId = \OC::$server->getConfig()->getAppValue($appId, 'ocsid');
-			if($storedId !== '' && $storedId !== $data['ocsid']) {
-				$data['ocsid'] = $storedId;
-			}
-		}
-
-		if ($lang === null) {
-			self::$appInfo[$appId] = $data;
-		}
-
-		return $data;
-	}
-
-	/**
-	 * Returns the navigation
-	 *
-	 * @return array
-	 *
-	 * This function returns an array containing all entries added. The
-	 * entries are sorted by the key 'order' ascending. Additional to the keys
-	 * given for each app the following keys exist:
-	 *   - active: boolean, signals if the user is on this navigation entry
-	 */
-	public static function getNavigation() {
-		$entries = OC::$server->getNavigationManager()->getAll();
-		$navigation = self::proceedNavigation($entries);
-		return $navigation;
-	}
-
-	/**
-	 * get the id of loaded app
-	 *
-	 * @return string
-	 */
-	public static function getCurrentApp() {
-		$request = \OC::$server->getRequest();
-		$script = substr($request->getScriptName(), strlen(OC::$WEBROOT) + 1);
-		$topFolder = substr($script, 0, strpos($script, '/'));
-		if (empty($topFolder)) {
-			$path_info = $request->getPathInfo();
-			if ($path_info) {
-				$topFolder = substr($path_info, 1, strpos($path_info, '/', 1) - 1);
-			}
-		}
-		if ($topFolder == 'apps') {
-			$length = strlen($topFolder);
-			return substr($script, $length + 1, strpos($script, '/', $length + 1) - $length - 1);
-		} else {
-			return $topFolder;
-		}
-	}
-
-	/**
-	 * @param string $type
-	 * @return array
-	 */
-	public static function getForms($type) {
-		$forms = array();
-		switch ($type) {
-			case 'admin':
-				$source = self::$adminForms;
-				break;
-			case 'personal':
-				$source = self::$personalForms;
-				break;
-			default:
-				return array();
-		}
-		foreach ($source as $form) {
-			$forms[] = include $form;
-		}
-		return $forms;
-	}
-
-	/**
-	 * register an admin form to be shown
-	 *
-	 * @param string $app
-	 * @param string $page
-	 */
-	public static function registerAdmin($app, $page) {
-		self::$adminForms[] = $app . '/' . $page . '.php';
-	}
-
-	/**
-	 * register a personal form to be shown
-	 * @param string $app
-	 * @param string $page
-	 */
-	public static function registerPersonal($app, $page) {
-		self::$personalForms[] = $app . '/' . $page . '.php';
-	}
-
-	/**
-	 * @param array $entry
-	 */
-	public static function registerLogIn(array $entry) {
-		self::$altLogin[] = $entry;
-	}
-
-	/**
-	 * @return array
-	 */
-	public static function getAlternativeLogIns() {
-		return self::$altLogin;
-	}
-
-	/**
-	 * get a list of all apps in the apps folder
-	 *
-	 * @return array an array of app names (string IDs)
-	 * @todo: change the name of this method to getInstalledApps, which is more accurate
-	 */
-	public static function getAllApps() {
-
-		$apps = array();
-
-		foreach (OC::$APPSROOTS as $apps_dir) {
-			if (!is_readable($apps_dir['path'])) {
-				\OCP\Util::writeLog('core', 'unable to read app folder : ' . $apps_dir['path'], \OCP\Util::WARN);
-				continue;
-			}
-			$dh = opendir($apps_dir['path']);
-
-			if (is_resource($dh)) {
-				while (($file = readdir($dh)) !== false) {
-
-					if ($file[0] != '.' and is_dir($apps_dir['path'] . '/' . $file) and is_file($apps_dir['path'] . '/' . $file . '/appinfo/info.xml')) {
-
-						$apps[] = $file;
-					}
-				}
-			}
-		}
-
-		return $apps;
-	}
-
-	/**
-	 * List all apps, this is used in apps.php
-	 *
-	 * @param bool $onlyLocal
-	 * @param bool $includeUpdateInfo Should we check whether there is an update
-	 *                                in the app store?
-	 * @param OCSClient $ocsClient
-	 * @return array
-	 */
-	public static function listAllApps($onlyLocal = false,
-									   $includeUpdateInfo = true,
-									   OCSClient $ocsClient) {
-		$installedApps = OC_App::getAllApps();
-
-		//TODO which apps do we want to blacklist and how do we integrate
-		// blacklisting with the multi apps folder feature?
-
-		//we don't want to show configuration for these
-		$blacklist = \OC::$server->getAppManager()->getAlwaysEnabledApps();
-		$appList = array();
-		$langCode = \OC::$server->getL10N('core')->getLanguageCode();
-
-		foreach ($installedApps as $app) {
-			if (array_search($app, $blacklist) === false) {
-
-				$info = OC_App::getAppInfo($app, false, $langCode);
-				if (!is_array($info)) {
-					\OCP\Util::writeLog('core', 'Could not read app info file for app "' . $app . '"', \OCP\Util::ERROR);
-					continue;
-				}
-
-				if (!isset($info['name'])) {
-					\OCP\Util::writeLog('core', 'App id "' . $app . '" has no name in appinfo', \OCP\Util::ERROR);
-					continue;
-				}
-
-				$enabled = \OC::$server->getAppConfig()->getValue($app, 'enabled', 'no');
-				$info['groups'] = null;
-				if ($enabled === 'yes') {
-					$active = true;
-				} else if ($enabled === 'no') {
-					$active = false;
-				} else {
-					$active = true;
-					$info['groups'] = $enabled;
-				}
-
-				$info['active'] = $active;
-
-				if (self::isShipped($app)) {
-					$info['internal'] = true;
-					$info['level'] = self::officialApp;
-					$info['removable'] = false;
-				} else {
-					$info['internal'] = false;
-					$info['removable'] = true;
-				}
-
-				$info['update'] = ($includeUpdateInfo) ? Installer::isUpdateAvailable($app) : null;
-
-				$appPath = self::getAppPath($app);
-				if($appPath !== false) {
-					$appIcon = $appPath . '/img/' . $app . '.svg';
-					if (file_exists($appIcon)) {
-						$info['preview'] = \OC::$server->getURLGenerator()->imagePath($app, $app . '.svg');
-						$info['previewAsIcon'] = true;
-					} else {
-						$appIcon = $appPath . '/img/app.svg';
-						if (file_exists($appIcon)) {
-							$info['preview'] = \OC::$server->getURLGenerator()->imagePath($app, 'app.svg');
-							$info['previewAsIcon'] = true;
-						}
-					}
-				}
-				$info['version'] = OC_App::getAppVersion($app);
-				$appList[] = $info;
-			}
-		}
-		if ($onlyLocal) {
-			$remoteApps = [];
-		} else {
-			$remoteApps = OC_App::getAppstoreApps('approved', null, $ocsClient);
-		}
-		if ($remoteApps) {
-			// Remove duplicates
-			foreach ($appList as $app) {
-				foreach ($remoteApps AS $key => $remote) {
-					if ($app['name'] === $remote['name'] ||
-						(isset($app['ocsid']) &&
-							$app['ocsid'] === $remote['id'])
-					) {
-						unset($remoteApps[$key]);
-					}
-				}
-			}
-			$combinedApps = array_merge($appList, $remoteApps);
-		} else {
-			$combinedApps = $appList;
-		}
-
-		return $combinedApps;
-	}
-
-	/**
-	 * Returns the internal app ID or false
-	 * @param string $ocsID
-	 * @return string|false
-	 */
-	public static function getInternalAppIdByOcs($ocsID) {
-		if(is_numeric($ocsID)) {
-			$idArray = \OC::$server->getAppConfig()->getValues(false, 'ocsid');
-			if(array_search($ocsID, $idArray)) {
-				return array_search($ocsID, $idArray);
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * Get a list of all apps on the appstore
-	 * @param string $filter
-	 * @param string|null $category
-	 * @param OCSClient $ocsClient
-	 * @return array|bool  multi-dimensional array of apps.
-	 *                     Keys: id, name, type, typename, personid, license, detailpage, preview, changed, description
-	 */
-	public static function getAppstoreApps($filter = 'approved',
-										   $category = null,
-										   OCSClient $ocsClient) {
-		$categories = [$category];
-
-		if (is_null($category)) {
-			$categoryNames = $ocsClient->getCategories(\OCP\Util::getVersion());
-			if (is_array($categoryNames)) {
-				// Check that categories of apps were retrieved correctly
-				if (!$categories = array_keys($categoryNames)) {
-					return false;
-				}
-			} else {
-				return false;
-			}
-		}
-
-		$page = 0;
-		$remoteApps = $ocsClient->getApplications($categories, $page, $filter, \OCP\Util::getVersion());
-		$apps = [];
-		$i = 0;
-		$l = \OC::$server->getL10N('core');
-		foreach ($remoteApps as $app) {
-			$potentialCleanId = self::getInternalAppIdByOcs($app['id']);
-			// enhance app info (for example the description)
-			$apps[$i] = OC_App::parseAppInfo($app);
-			$apps[$i]['author'] = $app['personid'];
-			$apps[$i]['ocs_id'] = $app['id'];
-			$apps[$i]['internal'] = 0;
-			$apps[$i]['active'] = ($potentialCleanId !== false) ? self::isEnabled($potentialCleanId) : false;
-			$apps[$i]['update'] = false;
-			$apps[$i]['groups'] = false;
-			$apps[$i]['score'] = $app['score'];
-			$apps[$i]['removable'] = false;
-			if ($app['label'] == 'recommended') {
-				$apps[$i]['internallabel'] = (string)$l->t('Recommended');
-				$apps[$i]['internalclass'] = 'recommendedapp';
-			}
-
-			// Apps from the appstore are always assumed to be compatible with the
-			// the current release as the initial filtering is done on the appstore
-			$apps[$i]['dependencies']['owncloud']['@attributes']['min-version'] = implode('.', \OCP\Util::getVersion());
-			$apps[$i]['dependencies']['owncloud']['@attributes']['max-version'] = implode('.', \OCP\Util::getVersion());
-
-			$i++;
-		}
-
-
-
-		if (empty($apps)) {
-			return false;
-		} else {
-			return $apps;
-		}
-	}
-
-	public static function shouldUpgrade($app) {
-		$versions = self::getAppVersions();
-		$currentVersion = OC_App::getAppVersion($app);
-		if ($currentVersion && isset($versions[$app])) {
-			$installedVersion = $versions[$app];
-			if (!version_compare($currentVersion, $installedVersion, '=')) {
-				return true;
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * Adjust the number of version parts of $version1 to match
-	 * the number of version parts of $version2.
-	 *
-	 * @param string $version1 version to adjust
-	 * @param string $version2 version to take the number of parts from
-	 * @return string shortened $version1
-	 */
-	private static function adjustVersionParts($version1, $version2) {
-		$version1 = explode('.', $version1);
-		$version2 = explode('.', $version2);
-		// reduce $version1 to match the number of parts in $version2
-		while (count($version1) > count($version2)) {
-			array_pop($version1);
-		}
-		// if $version1 does not have enough parts, add some
-		while (count($version1) < count($version2)) {
-			$version1[] = '0';
-		}
-		return implode('.', $version1);
-	}
-
-	/**
-	 * Check whether the current ownCloud version matches the given
-	 * application's version requirements.
-	 *
-	 * The comparison is made based on the number of parts that the
-	 * app info version has. For example for ownCloud 6.0.3 if the
-	 * app info version is expecting version 6.0, the comparison is
-	 * made on the first two parts of the ownCloud version.
-	 * This means that it's possible to specify "requiremin" => 6
-	 * and "requiremax" => 6 and it will still match ownCloud 6.0.3.
-	 *
-	 * @param string $ocVersion ownCloud version to check against
-	 * @param array $appInfo app info (from xml)
-	 *
-	 * @return boolean true if compatible, otherwise false
-	 */
-	public static function isAppCompatible($ocVersion, $appInfo) {
-		$requireMin = '';
-		$requireMax = '';
-		if (isset($appInfo['dependencies']['owncloud']['@attributes']['min-version'])) {
-			$requireMin = $appInfo['dependencies']['owncloud']['@attributes']['min-version'];
-		} else if (isset($appInfo['requiremin'])) {
-			$requireMin = $appInfo['requiremin'];
-		} else if (isset($appInfo['require'])) {
-			$requireMin = $appInfo['require'];
-		}
-
-		if (isset($appInfo['dependencies']['owncloud']['@attributes']['max-version'])) {
-			$requireMax = $appInfo['dependencies']['owncloud']['@attributes']['max-version'];
-		} else if (isset($appInfo['requiremax'])) {
-			$requireMax = $appInfo['requiremax'];
-		}
-
-		if (is_array($ocVersion)) {
-			$ocVersion = implode('.', $ocVersion);
-		}
-
-		if (!empty($requireMin)
-			&& version_compare(self::adjustVersionParts($ocVersion, $requireMin), $requireMin, '<')
-		) {
-
-			return false;
-		}
-
-		if (!empty($requireMax)
-			&& version_compare(self::adjustVersionParts($ocVersion, $requireMax), $requireMax, '>')
-		) {
-			return false;
-		}
-
-		return true;
-	}
-
-	/**
-	 * get the installed version of all apps
-	 */
-	public static function getAppVersions() {
-		static $versions;
-
-		if(!$versions) {
-			$appConfig = \OC::$server->getAppConfig();
-			$versions = $appConfig->getValues(false, 'installed_version');
-		}
-		return $versions;
-	}
-
-	/**
-	 * @param string $app
-	 * @return bool
-	 * @throws Exception if app is not compatible with this version of ownCloud
-	 * @throws Exception if no app-name was specified
-	 */
-	public static function installApp($app) {
-		$appName = $app; // $app will be overwritten, preserve name for error logging
-		$l = \OC::$server->getL10N('core');
-		$config = \OC::$server->getConfig();
-		$ocsClient = new OCSClient(
-			\OC::$server->getHTTPClientService(),
-			$config,
-			\OC::$server->getLogger()
-		);
-		$appData = $ocsClient->getApplication($app, \OCP\Util::getVersion());
-
-		// check if app is a shipped app or not. OCS apps have an integer as id, shipped apps use a string
-		if (!is_numeric($app)) {
-			$shippedVersion = self::getAppVersion($app);
-			if ($appData && version_compare($shippedVersion, $appData['version'], '<')) {
-				$app = self::downloadApp($app);
-			} else {
-				$app = Installer::installShippedApp($app);
-			}
-		} else {
-			// Maybe the app is already installed - compare the version in this
-			// case and use the local already installed one.
-			// FIXME: This is a horrible hack. I feel sad. The god of code cleanness may forgive me.
-			$internalAppId = self::getInternalAppIdByOcs($app);
-			if($internalAppId !== false) {
-				if($appData && version_compare(\OC_App::getAppVersion($internalAppId), $appData['version'], '<')) {
-					$app = self::downloadApp($app);
-				} else {
-					self::enable($internalAppId);
-					$app = $internalAppId;
-				}
-			} else {
-				$app = self::downloadApp($app);
-			}
-		}
-
-		if ($app !== false) {
-			// check if the app is compatible with this version of ownCloud
-			$info = self::getAppInfo($app);
-			if(!is_array($info)) {
-				throw new \Exception(
-					$l->t('App "%s" cannot be installed because appinfo file cannot be read.',
-						[$info['name']]
-					)
-				);
-			}
-
-			$version = \OCP\Util::getVersion();
-			if (!self::isAppCompatible($version, $info)) {
-				throw new \Exception(
-					$l->t('App "%s" cannot be installed because it is not compatible with this version of the server.',
-						array($info['name'])
-					)
-				);
-			}
-
-			// check for required dependencies
-			$dependencyAnalyzer = new DependencyAnalyzer(new Platform($config), $l);
-			$missing = $dependencyAnalyzer->analyze($info);
-			if (!empty($missing)) {
-				$missingMsg = join(PHP_EOL, $missing);
-				throw new \Exception(
-					$l->t('App "%s" cannot be installed because the following dependencies are not fulfilled: %s',
-						array($info['name'], $missingMsg)
-					)
-				);
-			}
-
-			$config->setAppValue($app, 'enabled', 'yes');
-			if (isset($appData['id'])) {
-				$config->setAppValue($app, 'ocsid', $appData['id']);
-			}
-
-			if(isset($info['settings']) && is_array($info['settings'])) {
-				$appPath = self::getAppPath($app);
-				self::registerAutoloading($app, $appPath);
-				\OC::$server->getSettingsManager()->setupSettings($info['settings']);
-			}
-
-			\OC_Hook::emit('OC_App', 'post_enable', array('app' => $app));
-		} else {
-			if(empty($appName) ) {
-				throw new \Exception($l->t("No app name specified"));
-			} else {
-				throw new \Exception($l->t("App '%s' could not be installed!", $appName));
-			}
-		}
-
-		return $app;
-	}
-
-	/**
-	 * update the database for the app and call the update script
-	 *
-	 * @param string $appId
-	 * @return bool
-	 */
-	public static function updateApp($appId) {
-		$appPath = self::getAppPath($appId);
-		if($appPath === false) {
-			return false;
-		}
-		$appData = self::getAppInfo($appId);
-		self::executeRepairSteps($appId, $appData['repair-steps']['pre-migration']);
-		if (file_exists($appPath . '/appinfo/database.xml')) {
-			OC_DB::updateDbFromStructure($appPath . '/appinfo/database.xml');
-		}
-		self::executeRepairSteps($appId, $appData['repair-steps']['post-migration']);
-		self::setupLiveMigrations($appId, $appData['repair-steps']['live-migration']);
-		unset(self::$appVersion[$appId]);
-		// run upgrade code
-		if (file_exists($appPath . '/appinfo/update.php')) {
-			self::loadApp($appId, false);
-			include $appPath . '/appinfo/update.php';
-		}
-		self::setupBackgroundJobs($appData['background-jobs']);
-		if(isset($appData['settings']) && is_array($appData['settings'])) {
-			$appPath = self::getAppPath($appId);
-			self::registerAutoloading($appId, $appPath);
-			\OC::$server->getSettingsManager()->setupSettings($appData['settings']);
-		}
-
-		//set remote/public handlers
-		if (array_key_exists('ocsid', $appData)) {
-			\OC::$server->getConfig()->setAppValue($appId, 'ocsid', $appData['ocsid']);
-		} elseif(\OC::$server->getConfig()->getAppValue($appId, 'ocsid', null) !== null) {
-			\OC::$server->getConfig()->deleteAppValue($appId, 'ocsid');
-		}
-		foreach ($appData['remote'] as $name => $path) {
-			\OC::$server->getConfig()->setAppValue('core', 'remote_' . $name, $appId . '/' . $path);
-		}
-		foreach ($appData['public'] as $name => $path) {
-			\OC::$server->getConfig()->setAppValue('core', 'public_' . $name, $appId . '/' . $path);
-		}
-
-		self::setAppTypes($appId);
-
-		$version = \OC_App::getAppVersion($appId);
-		\OC::$server->getAppConfig()->setValue($appId, 'installed_version', $version);
-
-		\OC::$server->getEventDispatcher()->dispatch(ManagerEvent::EVENT_APP_UPDATE, new ManagerEvent(
-			ManagerEvent::EVENT_APP_UPDATE, $appId
-		));
-
-		return true;
-	}
-
-	/**
-	 * @param string $appId
-	 * @param string[] $steps
-	 * @throws \OC\NeedsUpdateException
-	 */
-	public static function executeRepairSteps($appId, array $steps) {
-		if (empty($steps)) {
-			return;
-		}
-		// load the app
-		self::loadApp($appId, false);
-
-		$dispatcher = OC::$server->getEventDispatcher();
-
-		// load the steps
-		$r = new Repair([], $dispatcher);
-		foreach ($steps as $step) {
-			try {
-				$r->addStep($step);
-			} catch (Exception $ex) {
-				$r->emit('\OC\Repair', 'error', [$ex->getMessage()]);
-				\OC::$server->getLogger()->logException($ex);
-			}
-		}
-		// run the steps
-		$r->run();
-	}
-
-	public static function setupBackgroundJobs(array $jobs) {
-		$queue = \OC::$server->getJobList();
-		foreach ($jobs as $job) {
-			$queue->add($job);
-		}
-	}
-
-	/**
-	 * @param string $appId
-	 * @param string[] $steps
-	 */
-	private static function setupLiveMigrations($appId, array $steps) {
-		$queue = \OC::$server->getJobList();
-		foreach ($steps as $step) {
-			$queue->add('OC\Migration\BackgroundRepair', [
-				'app' => $appId,
-				'step' => $step]);
-		}
-	}
-
-	/**
-	 * @param string $appId
-	 * @return \OC\Files\View|false
-	 */
-	public static function getStorage($appId) {
-		if (OC_App::isEnabled($appId)) { //sanity check
-			if (OC_User::isLoggedIn()) {
-				$view = new \OC\Files\View('/' . OC_User::getUser());
-				if (!$view->file_exists($appId)) {
-					$view->mkdir($appId);
-				}
-				return new \OC\Files\View('/' . OC_User::getUser() . '/' . $appId);
-			} else {
-				\OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ', user not logged in', \OCP\Util::ERROR);
-				return false;
-			}
-		} else {
-			\OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ' not enabled', \OCP\Util::ERROR);
-			return false;
-		}
-	}
-
-	protected static function findBestL10NOption($options, $lang) {
-		$fallback = $similarLangFallback = $englishFallback = false;
-
-		$lang = strtolower($lang);
-		$similarLang = $lang;
-		if (strpos($similarLang, '_')) {
-			// For "de_DE" we want to find "de" and the other way around
-			$similarLang = substr($lang, 0, strpos($lang, '_'));
-		}
-
-		foreach ($options as $option) {
-			if (is_array($option)) {
-				if ($fallback === false) {
-					$fallback = $option['@value'];
-				}
-
-				if (!isset($option['@attributes']['lang'])) {
-					continue;
-				}
-
-				$attributeLang = strtolower($option['@attributes']['lang']);
-				if ($attributeLang === $lang) {
-					return $option['@value'];
-				}
-
-				if ($attributeLang === $similarLang) {
-					$similarLangFallback = $option['@value'];
-				} else if (strpos($attributeLang, $similarLang . '_') === 0) {
-					if ($similarLangFallback === false) {
-						$similarLangFallback =  $option['@value'];
-					}
-				}
-			} else {
-				$englishFallback = $option;
-			}
-		}
-
-		if ($similarLangFallback !== false) {
-			return $similarLangFallback;
-		} else if ($englishFallback !== false) {
-			return $englishFallback;
-		}
-		return (string) $fallback;
-	}
-
-	/**
-	 * parses the app data array and enhanced the 'description' value
-	 *
-	 * @param array $data the app data
-	 * @param string $lang
-	 * @return array improved app data
-	 */
-	public static function parseAppInfo(array $data, $lang = null) {
-
-		if ($lang && isset($data['name']) && is_array($data['name'])) {
-			$data['name'] = self::findBestL10NOption($data['name'], $lang);
-		}
-		if ($lang && isset($data['summary']) && is_array($data['summary'])) {
-			$data['summary'] = self::findBestL10NOption($data['summary'], $lang);
-		}
-		if ($lang && isset($data['description']) && is_array($data['description'])) {
-			$data['description'] = self::findBestL10NOption($data['description'], $lang);
-		}
-
-		// just modify the description if it is available
-		// otherwise this will create a $data element with an empty 'description'
-		if (isset($data['description'])) {
-			if (is_string($data['description'])) {
-				// sometimes the description contains line breaks and they are then also
-				// shown in this way in the app management which isn't wanted as HTML
-				// manages line breaks itself
-
-				// first of all we split on empty lines
-				$paragraphs = preg_split("!\n[[:space:]]*\n!mu", $data['description']);
-
-				$result = [];
-				foreach ($paragraphs as $value) {
-					// replace multiple whitespace (tabs, space, newlines) inside a paragraph
-					// with a single space - also trims whitespace
-					$result[] = trim(preg_replace('![[:space:]]+!mu', ' ', $value));
-				}
-
-				// join the single paragraphs with a empty line in between
-				$data['description'] = implode("\n\n", $result);
-
-			} else {
-				$data['description'] = '';
-			}
-		}
-
-		return $data;
-	}
+    static private $appVersion = [];
+    static private $adminForms = array();
+    static private $personalForms = array();
+    static private $appInfo = array();
+    static private $appTypes = array();
+    static private $loadedApps = array();
+    static private $altLogin = array();
+    static private $alreadyRegistered = [];
+    const officialApp = 200;
+
+    /**
+     * clean the appId
+     *
+     * @param string|boolean $app AppId that needs to be cleaned
+     * @return string
+     */
+    public static function cleanAppId($app) {
+        return str_replace(array('\0', '/', '\\', '..'), '', $app);
+    }
+
+    /**
+     * Check if an app is loaded
+     *
+     * @param string $app
+     * @return bool
+     */
+    public static function isAppLoaded($app) {
+        return in_array($app, self::$loadedApps, true);
+    }
+
+    /**
+     * loads all apps
+     *
+     * @param string[] | string | null $types
+     * @return bool
+     *
+     * This function walks through the ownCloud directory and loads all apps
+     * it can find. A directory contains an app if the file /appinfo/info.xml
+     * exists.
+     *
+     * if $types is set, only apps of those types will be loaded
+     */
+    public static function loadApps($types = null) {
+        if (\OC::$server->getSystemConfig()->getValue('maintenance', false)) {
+            return false;
+        }
+        // Load the enabled apps here
+        $apps = self::getEnabledApps();
+
+        // Add each apps' folder as allowed class path
+        foreach($apps as $app) {
+            $path = self::getAppPath($app);
+            if($path !== false) {
+                self::registerAutoloading($app, $path);
+            }
+        }
+
+        // prevent app.php from printing output
+        ob_start();
+        foreach ($apps as $app) {
+            if ((is_null($types) or self::isType($app, $types)) && !in_array($app, self::$loadedApps)) {
+                self::loadApp($app);
+            }
+        }
+        ob_end_clean();
+
+        return true;
+    }
+
+    /**
+     * load a single app
+     *
+     * @param string $app
+     * @param bool $checkUpgrade whether an upgrade check should be done
+     * @throws \OC\NeedsUpdateException
+     */
+    public static function loadApp($app, $checkUpgrade = true) {
+        self::$loadedApps[] = $app;
+        $appPath = self::getAppPath($app);
+        if($appPath === false) {
+            return;
+        }
+
+        // in case someone calls loadApp() directly
+        self::registerAutoloading($app, $appPath);
+
+        if (is_file($appPath . '/appinfo/app.php')) {
+            \OC::$server->getEventLogger()->start('load_app_' . $app, 'Load app: ' . $app);
+            if ($checkUpgrade and self::shouldUpgrade($app)) {
+                throw new \OC\NeedsUpdateException();
+            }
+            self::requireAppFile($app);
+            if (self::isType($app, array('authentication'))) {
+                // since authentication apps affect the "is app enabled for group" check,
+                // the enabled apps cache needs to be cleared to make sure that the
+                // next time getEnableApps() is called it will also include apps that were
+                // enabled for groups
+                self::$enabledAppsCache = array();
+            }
+            \OC::$server->getEventLogger()->end('load_app_' . $app);
+        }
+    }
+
+    /**
+     * @internal
+     * @param string $app
+     * @param string $path
+     */
+    public static function registerAutoloading($app, $path) {
+        $key = $app . '-' . $path;
+        if(isset(self::$alreadyRegistered[$key])) {
+            return;
+        }
+        self::$alreadyRegistered[$key] = true;
+        // Register on PSR-4 composer autoloader
+        $appNamespace = \OC\AppFramework\App::buildAppNamespace($app);
+        \OC::$composerAutoloader->addPsr4($appNamespace . '\\', $path . '/lib/', true);
+        if (defined('PHPUNIT_RUN') || defined('CLI_TEST_RUN')) {
+            \OC::$composerAutoloader->addPsr4($appNamespace . '\\Tests\\', $path . '/tests/', true);
+        }
+
+        // Register on legacy autoloader
+        \OC::$loader->addValidRoot($path);
+    }
+
+    /**
+     * Load app.php from the given app
+     *
+     * @param string $app app name
+     */
+    private static function requireAppFile($app) {
+        try {
+            // encapsulated here to avoid variable scope conflicts
+            require_once $app . '/appinfo/app.php';
+        } catch (Error $ex) {
+            \OC::$server->getLogger()->logException($ex);
+            $blacklist = \OC::$server->getAppManager()->getAlwaysEnabledApps();
+            if (!in_array($app, $blacklist)) {
+                self::disable($app);
+            }
+        }
+    }
+
+    /**
+     * check if an app is of a specific type
+     *
+     * @param string $app
+     * @param string|array $types
+     * @return bool
+     */
+    public static function isType($app, $types) {
+        if (is_string($types)) {
+            $types = array($types);
+        }
+        $appTypes = self::getAppTypes($app);
+        foreach ($types as $type) {
+            if (array_search($type, $appTypes) !== false) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * get the types of an app
+     *
+     * @param string $app
+     * @return array
+     */
+    private static function getAppTypes($app) {
+        //load the cache
+        if (count(self::$appTypes) == 0) {
+            self::$appTypes = \OC::$server->getAppConfig()->getValues(false, 'types');
+        }
+
+        if (isset(self::$appTypes[$app])) {
+            return explode(',', self::$appTypes[$app]);
+        } else {
+            return array();
+        }
+    }
+
+    /**
+     * read app types from info.xml and cache them in the database
+     */
+    public static function setAppTypes($app) {
+        $appData = self::getAppInfo($app);
+        if(!is_array($appData)) {
+            return;
+        }
+
+        if (isset($appData['types'])) {
+            $appTypes = implode(',', $appData['types']);
+        } else {
+            $appTypes = '';
+        }
+
+        \OC::$server->getAppConfig()->setValue($app, 'types', $appTypes);
+    }
+
+    /**
+     * check if app is shipped
+     *
+     * @param string $appId the id of the app to check
+     * @return bool
+     *
+     * Check if an app that is installed is a shipped app or installed from the appstore.
+     */
+    public static function isShipped($appId) {
+        return \OC::$server->getAppManager()->isShipped($appId);
+    }
+
+    /**
+     * get all enabled apps
+     */
+    protected static $enabledAppsCache = array();
+
+    /**
+     * Returns apps enabled for the current user.
+     *
+     * @param bool $forceRefresh whether to refresh the cache
+     * @param bool $all whether to return apps for all users, not only the
+     * currently logged in one
+     * @return string[]
+     */
+    public static function getEnabledApps($forceRefresh = false, $all = false) {
+        if (!\OC::$server->getSystemConfig()->getValue('installed', false)) {
+            return array();
+        }
+        // in incognito mode or when logged out, $user will be false,
+        // which is also the case during an upgrade
+        $appManager = \OC::$server->getAppManager();
+        if ($all) {
+            $user = null;
+        } else {
+            $user = \OC::$server->getUserSession()->getUser();
+        }
+
+        if (is_null($user)) {
+            $apps = $appManager->getInstalledApps();
+        } else {
+            $apps = $appManager->getEnabledAppsForUser($user);
+        }
+        $apps = array_filter($apps, function ($app) {
+            return $app !== 'files';//we add this manually
+        });
+        sort($apps);
+        array_unshift($apps, 'files');
+        return $apps;
+    }
+
+    /**
+     * checks whether or not an app is enabled
+     *
+     * @param string $app app
+     * @return bool
+     *
+     * This function checks whether or not an app is enabled.
+     */
+    public static function isEnabled($app) {
+        return \OC::$server->getAppManager()->isEnabledForUser($app);
+    }
+
+    /**
+     * enables an app
+     *
+     * @param mixed $app app
+     * @param array $groups (optional) when set, only these groups will have access to the app
+     * @throws \Exception
+     * @return void
+     *
+     * This function set an app as enabled in appconfig.
+     */
+    public static function enable($app, $groups = null) {
+        self::$enabledAppsCache = array(); // flush
+        if (!Installer::isInstalled($app)) {
+            $app = self::installApp($app);
+        }
+
+        $appManager = \OC::$server->getAppManager();
+        if (!is_null($groups)) {
+            $groupManager = \OC::$server->getGroupManager();
+            $groupsList = [];
+            foreach ($groups as $group) {
+                $groupItem = $groupManager->get($group);
+                if ($groupItem instanceof \OCP\IGroup) {
+                    $groupsList[] = $groupManager->get($group);
+                }
+            }
+            $appManager->enableAppForGroups($app, $groupsList);
+        } else {
+            $appManager->enableApp($app);
+        }
+
+        $info = self::getAppInfo($app);
+        if(isset($info['settings']) && is_array($info['settings'])) {
+            $appPath = self::getAppPath($app);
+            self::registerAutoloading($app, $appPath);
+            \OC::$server->getSettingsManager()->setupSettings($info['settings']);
+        }
+    }
+
+    /**
+     * @param string $app
+     * @return int
+     */
+    private static function downloadApp($app) {
+        $ocsClient = new OCSClient(
+            \OC::$server->getHTTPClientService(),
+            \OC::$server->getConfig(),
+            \OC::$server->getLogger()
+        );
+        $appData = $ocsClient->getApplication($app, \OCP\Util::getVersion());
+        $download = $ocsClient->getApplicationDownload($app, \OCP\Util::getVersion());
+        if(isset($download['downloadlink']) and $download['downloadlink']!='') {
+            // Replace spaces in download link without encoding entire URL
+            $download['downloadlink'] = str_replace(' ', '%20', $download['downloadlink']);
+            $info = array('source' => 'http', 'href' => $download['downloadlink'], 'appdata' => $appData);
+            $app = Installer::installApp($info);
+        }
+        return $app;
+    }
+
+    /**
+     * @param string $app
+     * @return bool
+     */
+    public static function removeApp($app) {
+        if (self::isShipped($app)) {
+            return false;
+        }
+
+        return Installer::removeApp($app);
+    }
+
+    /**
+     * This function set an app as disabled in appconfig.
+     *
+     * @param string $app app
+     * @throws Exception
+     */
+    public static function disable($app) {
+        // Convert OCS ID to regular application identifier
+        if(self::getInternalAppIdByOcs($app) !== false) {
+            $app = self::getInternalAppIdByOcs($app);
+        }
+
+        // flush
+        self::$enabledAppsCache = array();
+
+        // run uninstall steps
+        $appData = OC_App::getAppInfo($app);
+        if (!is_null($appData)) {
+            OC_App::executeRepairSteps($app, $appData['repair-steps']['uninstall']);
+        }
+
+        // emit disable hook - needed anymore ?
+        \OC_Hook::emit('OC_App', 'pre_disable', array('app' => $app));
+
+        // finally disable it
+        $appManager = \OC::$server->getAppManager();
+        $appManager->disableApp($app);
+    }
+
+    /**
+     * Returns the Settings Navigation
+     *
+     * @return string[]
+     *
+     * This function returns an array containing all settings pages added. The
+     * entries are sorted by the key 'order' ascending.
+     */
+    public static function getSettingsNavigation() {
+        $l = \OC::$server->getL10N('lib');
+        $urlGenerator = \OC::$server->getURLGenerator();
+
+        $settings = array();
+        // by default, settings only contain the help menu
+        if (OC_Util::getEditionString() === '' &&
+            \OC::$server->getSystemConfig()->getValue('knowledgebaseenabled', true) == true
+        ) {
+            $settings = array(
+                array(
+                    "id" => "help",
+                    "order" => 1000,
+                    "href" => $urlGenerator->linkToRoute('settings_help'),
+                    "name" => $l->t("Help"),
+                    "icon" => $urlGenerator->imagePath("settings", "help.svg")
+                )
+            );
+        }
+
+        // if the user is logged-in
+        if (OC_User::isLoggedIn()) {
+            // personal menu
+            $settings[] = array(
+                "id" => "personal",
+                "order" => 1,
+                "href" => $urlGenerator->linkToRoute('settings_personal'),
+                "name" => $l->t("Personal"),
+                "icon" => $urlGenerator->imagePath("settings", "personal.svg")
+            );
+
+            //SubAdmins are also allowed to access user management
+            $userObject = \OC::$server->getUserSession()->getUser();
+            $isSubAdmin = false;
+            if($userObject !== null) {
+                $isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
+            }
+            if ($isSubAdmin) {
+                // admin users menu
+                $settings[] = array(
+                    "id" => "core_users",
+                    "order" => 2,
+                    "href" => $urlGenerator->linkToRoute('settings_users'),
+                    "name" => $l->t("Users"),
+                    "icon" => $urlGenerator->imagePath("settings", "users.svg")
+                );
+            }
+
+            // if the user is an admin
+            if (OC_User::isAdminUser(OC_User::getUser())) {
+                // admin settings
+                $settings[] = array(
+                    "id" => "admin",
+                    "order" => 1000,
+                    "href" => $urlGenerator->linkToRoute('settings.AdminSettings.index'),
+                    "name" => $l->t("Admin"),
+                    "icon" => $urlGenerator->imagePath("settings", "admin.svg")
+                );
+            }
+        }
+
+        $navigation = self::proceedNavigation($settings);
+        return $navigation;
+    }
+
+    // This is private as well. It simply works, so don't ask for more details
+    private static function proceedNavigation($list) {
+        $activeApp = OC::$server->getNavigationManager()->getActiveEntry();
+        foreach ($list as &$navEntry) {
+            if ($navEntry['id'] == $activeApp) {
+                $navEntry['active'] = true;
+            } else {
+                $navEntry['active'] = false;
+            }
+        }
+        unset($navEntry);
+
+        usort($list, function($a, $b) {
+            if (isset($a['order']) && isset($b['order'])) {
+                return ($a['order'] < $b['order']) ? -1 : 1;
+            } else if (isset($a['order']) || isset($b['order'])) {
+                return isset($a['order']) ? -1 : 1;
+            } else {
+                return ($a['name'] < $b['name']) ? -1 : 1;
+            }
+        });
+
+        return $list;
+    }
+
+    /**
+     * Get the path where to install apps
+     *
+     * @return string|false
+     */
+    public static function getInstallPath() {
+        if (\OC::$server->getSystemConfig()->getValue('appstoreenabled', true) == false) {
+            return false;
+        }
+
+        foreach (OC::$APPSROOTS as $dir) {
+            if (isset($dir['writable']) && $dir['writable'] === true) {
+                return $dir['path'];
+            }
+        }
+
+        \OCP\Util::writeLog('core', 'No application directories are marked as writable.', \OCP\Util::ERROR);
+        return null;
+    }
+
+
+    /**
+     * search for an app in all app-directories
+     *
+     * @param string $appId
+     * @return false|string
+     */
+    protected static function findAppInDirectories($appId) {
+        $sanitizedAppId = self::cleanAppId($appId);
+        if($sanitizedAppId !== $appId) {
+            return false;
+        }
+        static $app_dir = array();
+
+        if (isset($app_dir[$appId])) {
+            return $app_dir[$appId];
+        }
+
+        $possibleApps = array();
+        foreach (OC::$APPSROOTS as $dir) {
+            if (file_exists($dir['path'] . '/' . $appId)) {
+                $possibleApps[] = $dir;
+            }
+        }
+
+        if (empty($possibleApps)) {
+            return false;
+        } elseif (count($possibleApps) === 1) {
+            $dir = array_shift($possibleApps);
+            $app_dir[$appId] = $dir;
+            return $dir;
+        } else {
+            $versionToLoad = array();
+            foreach ($possibleApps as $possibleApp) {
+                $version = self::getAppVersionByPath($possibleApp['path']);
+                if (empty($versionToLoad) || version_compare($version, $versionToLoad['version'], '>')) {
+                    $versionToLoad = array(
+                        'dir' => $possibleApp,
+                        'version' => $version,
+                    );
+                }
+            }
+            $app_dir[$appId] = $versionToLoad['dir'];
+            return $versionToLoad['dir'];
+            //TODO - write test
+        }
+    }
+
+    /**
+     * Get the directory for the given app.
+     * If the app is defined in multiple directories, the first one is taken. (false if not found)
+     *
+     * @param string $appId
+     * @return string|false
+     */
+    public static function getAppPath($appId) {
+        if ($appId === null || trim($appId) === '') {
+            return false;
+        }
+
+        if (($dir = self::findAppInDirectories($appId)) != false) {
+            return $dir['path'] . '/' . $appId;
+        }
+        return false;
+    }
+
+
+    /**
+     * check if an app's directory is writable
+     *
+     * @param string $appId
+     * @return bool
+     */
+    public static function isAppDirWritable($appId) {
+        $path = self::getAppPath($appId);
+        return ($path !== false) ? is_writable($path) : false;
+    }
+
+    /**
+     * Get the path for the given app on the access
+     * If the app is defined in multiple directories, the first one is taken. (false if not found)
+     *
+     * @param string $appId
+     * @return string|false
+     */
+    public static function getAppWebPath($appId) {
+        if (($dir = self::findAppInDirectories($appId)) != false) {
+            return OC::$WEBROOT . $dir['url'] . '/' . $appId;
+        }
+        return false;
+    }
+
+    /**
+     * get the last version of the app from appinfo/info.xml
+     *
+     * @param string $appId
+     * @return string
+     */
+    public static function getAppVersion($appId) {
+        if (!isset(self::$appVersion[$appId])) {
+            $file = self::getAppPath($appId);
+            self::$appVersion[$appId] = ($file !== false) ? self::getAppVersionByPath($file) : '0';
+        }
+        return self::$appVersion[$appId];
+    }
+
+    /**
+     * get app's version based on it's path
+     *
+     * @param string $path
+     * @return string
+     */
+    public static function getAppVersionByPath($path) {
+        $infoFile = $path . '/appinfo/info.xml';
+        $appData = self::getAppInfo($infoFile, true);
+        return isset($appData['version']) ? $appData['version'] : '';
+    }
+
+
+    /**
+     * Read all app metadata from the info.xml file
+     *
+     * @param string $appId id of the app or the path of the info.xml file
+     * @param bool $path
+     * @param string $lang
+     * @return array|null
+     * @note all data is read from info.xml, not just pre-defined fields
+     */
+    public static function getAppInfo($appId, $path = false, $lang = null) {
+        if ($path) {
+            $file = $appId;
+        } else {
+            if ($lang === null && isset(self::$appInfo[$appId])) {
+                return self::$appInfo[$appId];
+            }
+            $appPath = self::getAppPath($appId);
+            if($appPath === false) {
+                return null;
+            }
+            $file = $appPath . '/appinfo/info.xml';
+        }
+
+        $parser = new \OC\App\InfoParser(\OC::$server->getURLGenerator());
+        $data = $parser->parse($file);
+
+        if (is_array($data)) {
+            $data = OC_App::parseAppInfo($data, $lang);
+        }
+        if(isset($data['ocsid'])) {
+            $storedId = \OC::$server->getConfig()->getAppValue($appId, 'ocsid');
+            if($storedId !== '' && $storedId !== $data['ocsid']) {
+                $data['ocsid'] = $storedId;
+            }
+        }
+
+        if ($lang === null) {
+            self::$appInfo[$appId] = $data;
+        }
+
+        return $data;
+    }
+
+    /**
+     * Returns the navigation
+     *
+     * @return array
+     *
+     * This function returns an array containing all entries added. The
+     * entries are sorted by the key 'order' ascending. Additional to the keys
+     * given for each app the following keys exist:
+     *   - active: boolean, signals if the user is on this navigation entry
+     */
+    public static function getNavigation() {
+        $entries = OC::$server->getNavigationManager()->getAll();
+        $navigation = self::proceedNavigation($entries);
+        return $navigation;
+    }
+
+    /**
+     * get the id of loaded app
+     *
+     * @return string
+     */
+    public static function getCurrentApp() {
+        $request = \OC::$server->getRequest();
+        $script = substr($request->getScriptName(), strlen(OC::$WEBROOT) + 1);
+        $topFolder = substr($script, 0, strpos($script, '/'));
+        if (empty($topFolder)) {
+            $path_info = $request->getPathInfo();
+            if ($path_info) {
+                $topFolder = substr($path_info, 1, strpos($path_info, '/', 1) - 1);
+            }
+        }
+        if ($topFolder == 'apps') {
+            $length = strlen($topFolder);
+            return substr($script, $length + 1, strpos($script, '/', $length + 1) - $length - 1);
+        } else {
+            return $topFolder;
+        }
+    }
+
+    /**
+     * @param string $type
+     * @return array
+     */
+    public static function getForms($type) {
+        $forms = array();
+        switch ($type) {
+            case 'admin':
+                $source = self::$adminForms;
+                break;
+            case 'personal':
+                $source = self::$personalForms;
+                break;
+            default:
+                return array();
+        }
+        foreach ($source as $form) {
+            $forms[] = include $form;
+        }
+        return $forms;
+    }
+
+    /**
+     * register an admin form to be shown
+     *
+     * @param string $app
+     * @param string $page
+     */
+    public static function registerAdmin($app, $page) {
+        self::$adminForms[] = $app . '/' . $page . '.php';
+    }
+
+    /**
+     * register a personal form to be shown
+     * @param string $app
+     * @param string $page
+     */
+    public static function registerPersonal($app, $page) {
+        self::$personalForms[] = $app . '/' . $page . '.php';
+    }
+
+    /**
+     * @param array $entry
+     */
+    public static function registerLogIn(array $entry) {
+        self::$altLogin[] = $entry;
+    }
+
+    /**
+     * @return array
+     */
+    public static function getAlternativeLogIns() {
+        return self::$altLogin;
+    }
+
+    /**
+     * get a list of all apps in the apps folder
+     *
+     * @return array an array of app names (string IDs)
+     * @todo: change the name of this method to getInstalledApps, which is more accurate
+     */
+    public static function getAllApps() {
+
+        $apps = array();
+
+        foreach (OC::$APPSROOTS as $apps_dir) {
+            if (!is_readable($apps_dir['path'])) {
+                \OCP\Util::writeLog('core', 'unable to read app folder : ' . $apps_dir['path'], \OCP\Util::WARN);
+                continue;
+            }
+            $dh = opendir($apps_dir['path']);
+
+            if (is_resource($dh)) {
+                while (($file = readdir($dh)) !== false) {
+
+                    if ($file[0] != '.' and is_dir($apps_dir['path'] . '/' . $file) and is_file($apps_dir['path'] . '/' . $file . '/appinfo/info.xml')) {
+
+                        $apps[] = $file;
+                    }
+                }
+            }
+        }
+
+        return $apps;
+    }
+
+    /**
+     * List all apps, this is used in apps.php
+     *
+     * @param bool $onlyLocal
+     * @param bool $includeUpdateInfo Should we check whether there is an update
+     *                                in the app store?
+     * @param OCSClient $ocsClient
+     * @return array
+     */
+    public static function listAllApps($onlyLocal = false,
+                                        $includeUpdateInfo = true,
+                                        OCSClient $ocsClient) {
+        $installedApps = OC_App::getAllApps();
+
+        //TODO which apps do we want to blacklist and how do we integrate
+        // blacklisting with the multi apps folder feature?
+
+        //we don't want to show configuration for these
+        $blacklist = \OC::$server->getAppManager()->getAlwaysEnabledApps();
+        $appList = array();
+        $langCode = \OC::$server->getL10N('core')->getLanguageCode();
+
+        foreach ($installedApps as $app) {
+            if (array_search($app, $blacklist) === false) {
+
+                $info = OC_App::getAppInfo($app, false, $langCode);
+                if (!is_array($info)) {
+                    \OCP\Util::writeLog('core', 'Could not read app info file for app "' . $app . '"', \OCP\Util::ERROR);
+                    continue;
+                }
+
+                if (!isset($info['name'])) {
+                    \OCP\Util::writeLog('core', 'App id "' . $app . '" has no name in appinfo', \OCP\Util::ERROR);
+                    continue;
+                }
+
+                $enabled = \OC::$server->getAppConfig()->getValue($app, 'enabled', 'no');
+                $info['groups'] = null;
+                if ($enabled === 'yes') {
+                    $active = true;
+                } else if ($enabled === 'no') {
+                    $active = false;
+                } else {
+                    $active = true;
+                    $info['groups'] = $enabled;
+                }
+
+                $info['active'] = $active;
+
+                if (self::isShipped($app)) {
+                    $info['internal'] = true;
+                    $info['level'] = self::officialApp;
+                    $info['removable'] = false;
+                } else {
+                    $info['internal'] = false;
+                    $info['removable'] = true;
+                }
+
+                $info['update'] = ($includeUpdateInfo) ? Installer::isUpdateAvailable($app) : null;
+
+                $appPath = self::getAppPath($app);
+                if($appPath !== false) {
+                    $appIcon = $appPath . '/img/' . $app . '.svg';
+                    if (file_exists($appIcon)) {
+                        $info['preview'] = \OC::$server->getURLGenerator()->imagePath($app, $app . '.svg');
+                        $info['previewAsIcon'] = true;
+                    } else {
+                        $appIcon = $appPath . '/img/app.svg';
+                        if (file_exists($appIcon)) {
+                            $info['preview'] = \OC::$server->getURLGenerator()->imagePath($app, 'app.svg');
+                            $info['previewAsIcon'] = true;
+                        }
+                    }
+                }
+                $info['version'] = OC_App::getAppVersion($app);
+                $appList[] = $info;
+            }
+        }
+        if ($onlyLocal) {
+            $remoteApps = [];
+        } else {
+            $remoteApps = OC_App::getAppstoreApps('approved', null, $ocsClient);
+        }
+        if ($remoteApps) {
+            // Remove duplicates
+            foreach ($appList as $app) {
+                foreach ($remoteApps AS $key => $remote) {
+                    if ($app['name'] === $remote['name'] ||
+                        (isset($app['ocsid']) &&
+                            $app['ocsid'] === $remote['id'])
+                    ) {
+                        unset($remoteApps[$key]);
+                    }
+                }
+            }
+            $combinedApps = array_merge($appList, $remoteApps);
+        } else {
+            $combinedApps = $appList;
+        }
+
+        return $combinedApps;
+    }
+
+    /**
+     * Returns the internal app ID or false
+     * @param string $ocsID
+     * @return string|false
+     */
+    public static function getInternalAppIdByOcs($ocsID) {
+        if(is_numeric($ocsID)) {
+            $idArray = \OC::$server->getAppConfig()->getValues(false, 'ocsid');
+            if(array_search($ocsID, $idArray)) {
+                return array_search($ocsID, $idArray);
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Get a list of all apps on the appstore
+     * @param string $filter
+     * @param string|null $category
+     * @param OCSClient $ocsClient
+     * @return array|bool  multi-dimensional array of apps.
+     *                     Keys: id, name, type, typename, personid, license, detailpage, preview, changed, description
+     */
+    public static function getAppstoreApps($filter = 'approved',
+                                            $category = null,
+                                            OCSClient $ocsClient) {
+        $categories = [$category];
+
+        if (is_null($category)) {
+            $categoryNames = $ocsClient->getCategories(\OCP\Util::getVersion());
+            if (is_array($categoryNames)) {
+                // Check that categories of apps were retrieved correctly
+                if (!$categories = array_keys($categoryNames)) {
+                    return false;
+                }
+            } else {
+                return false;
+            }
+        }
+
+        $page = 0;
+        $remoteApps = $ocsClient->getApplications($categories, $page, $filter, \OCP\Util::getVersion());
+        $apps = [];
+        $i = 0;
+        $l = \OC::$server->getL10N('core');
+        foreach ($remoteApps as $app) {
+            $potentialCleanId = self::getInternalAppIdByOcs($app['id']);
+            // enhance app info (for example the description)
+            $apps[$i] = OC_App::parseAppInfo($app);
+            $apps[$i]['author'] = $app['personid'];
+            $apps[$i]['ocs_id'] = $app['id'];
+            $apps[$i]['internal'] = 0;
+            $apps[$i]['active'] = ($potentialCleanId !== false) ? self::isEnabled($potentialCleanId) : false;
+            $apps[$i]['update'] = false;
+            $apps[$i]['groups'] = false;
+            $apps[$i]['score'] = $app['score'];
+            $apps[$i]['removable'] = false;
+            if ($app['label'] == 'recommended') {
+                $apps[$i]['internallabel'] = (string)$l->t('Recommended');
+                $apps[$i]['internalclass'] = 'recommendedapp';
+            }
+
+            // Apps from the appstore are always assumed to be compatible with the
+            // the current release as the initial filtering is done on the appstore
+            $apps[$i]['dependencies']['owncloud']['@attributes']['min-version'] = implode('.', \OCP\Util::getVersion());
+            $apps[$i]['dependencies']['owncloud']['@attributes']['max-version'] = implode('.', \OCP\Util::getVersion());
+
+            $i++;
+        }
+
+
+
+        if (empty($apps)) {
+            return false;
+        } else {
+            return $apps;
+        }
+    }
+
+    public static function shouldUpgrade($app) {
+        $versions = self::getAppVersions();
+        $currentVersion = OC_App::getAppVersion($app);
+        if ($currentVersion && isset($versions[$app])) {
+            $installedVersion = $versions[$app];
+            if (!version_compare($currentVersion, $installedVersion, '=')) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Adjust the number of version parts of $version1 to match
+     * the number of version parts of $version2.
+     *
+     * @param string $version1 version to adjust
+     * @param string $version2 version to take the number of parts from
+     * @return string shortened $version1
+     */
+    private static function adjustVersionParts($version1, $version2) {
+        $version1 = explode('.', $version1);
+        $version2 = explode('.', $version2);
+        // reduce $version1 to match the number of parts in $version2
+        while (count($version1) > count($version2)) {
+            array_pop($version1);
+        }
+        // if $version1 does not have enough parts, add some
+        while (count($version1) < count($version2)) {
+            $version1[] = '0';
+        }
+        return implode('.', $version1);
+    }
+
+    /**
+     * Check whether the current ownCloud version matches the given
+     * application's version requirements.
+     *
+     * The comparison is made based on the number of parts that the
+     * app info version has. For example for ownCloud 6.0.3 if the
+     * app info version is expecting version 6.0, the comparison is
+     * made on the first two parts of the ownCloud version.
+     * This means that it's possible to specify "requiremin" => 6
+     * and "requiremax" => 6 and it will still match ownCloud 6.0.3.
+     *
+     * @param string $ocVersion ownCloud version to check against
+     * @param array $appInfo app info (from xml)
+     *
+     * @return boolean true if compatible, otherwise false
+     */
+    public static function isAppCompatible($ocVersion, $appInfo) {
+        $requireMin = '';
+        $requireMax = '';
+        if (isset($appInfo['dependencies']['owncloud']['@attributes']['min-version'])) {
+            $requireMin = $appInfo['dependencies']['owncloud']['@attributes']['min-version'];
+        } else if (isset($appInfo['requiremin'])) {
+            $requireMin = $appInfo['requiremin'];
+        } else if (isset($appInfo['require'])) {
+            $requireMin = $appInfo['require'];
+        }
+
+        if (isset($appInfo['dependencies']['owncloud']['@attributes']['max-version'])) {
+            $requireMax = $appInfo['dependencies']['owncloud']['@attributes']['max-version'];
+        } else if (isset($appInfo['requiremax'])) {
+            $requireMax = $appInfo['requiremax'];
+        }
+
+        if (is_array($ocVersion)) {
+            $ocVersion = implode('.', $ocVersion);
+        }
+
+        if (!empty($requireMin)
+            && version_compare(self::adjustVersionParts($ocVersion, $requireMin), $requireMin, '<')
+        ) {
+
+            return false;
+        }
+
+        if (!empty($requireMax)
+            && version_compare(self::adjustVersionParts($ocVersion, $requireMax), $requireMax, '>')
+        ) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * get the installed version of all apps
+     */
+    public static function getAppVersions() {
+        static $versions;
+
+        if(!$versions) {
+            $appConfig = \OC::$server->getAppConfig();
+            $versions = $appConfig->getValues(false, 'installed_version');
+        }
+        return $versions;
+    }
+
+    /**
+     * @param string $app
+     * @return bool
+     * @throws Exception if app is not compatible with this version of ownCloud
+     * @throws Exception if no app-name was specified
+     */
+    public static function installApp($app) {
+        $appName = $app; // $app will be overwritten, preserve name for error logging
+        $l = \OC::$server->getL10N('core');
+        $config = \OC::$server->getConfig();
+        $ocsClient = new OCSClient(
+            \OC::$server->getHTTPClientService(),
+            $config,
+            \OC::$server->getLogger()
+        );
+        $appData = $ocsClient->getApplication($app, \OCP\Util::getVersion());
+
+        // check if app is a shipped app or not. OCS apps have an integer as id, shipped apps use a string
+        if (!is_numeric($app)) {
+            $shippedVersion = self::getAppVersion($app);
+            if ($appData && version_compare($shippedVersion, $appData['version'], '<')) {
+                $app = self::downloadApp($app);
+            } else {
+                $app = Installer::installShippedApp($app);
+            }
+        } else {
+            // Maybe the app is already installed - compare the version in this
+            // case and use the local already installed one.
+            // FIXME: This is a horrible hack. I feel sad. The god of code cleanness may forgive me.
+            $internalAppId = self::getInternalAppIdByOcs($app);
+            if($internalAppId !== false) {
+                if($appData && version_compare(\OC_App::getAppVersion($internalAppId), $appData['version'], '<')) {
+                    $app = self::downloadApp($app);
+                } else {
+                    self::enable($internalAppId);
+                    $app = $internalAppId;
+                }
+            } else {
+                $app = self::downloadApp($app);
+            }
+        }
+
+        if ($app !== false) {
+            // check if the app is compatible with this version of ownCloud
+            $info = self::getAppInfo($app);
+            if(!is_array($info)) {
+                throw new \Exception(
+                    $l->t('App "%s" cannot be installed because appinfo file cannot be read.',
+                        [$info['name']]
+                    )
+                );
+            }
+
+            $version = \OCP\Util::getVersion();
+            if (!self::isAppCompatible($version, $info)) {
+                throw new \Exception(
+                    $l->t('App "%s" cannot be installed because it is not compatible with this version of the server.',
+                        array($info['name'])
+                    )
+                );
+            }
+
+            // check for required dependencies
+            $dependencyAnalyzer = new DependencyAnalyzer(new Platform($config), $l);
+            $missing = $dependencyAnalyzer->analyze($info);
+            if (!empty($missing)) {
+                $missingMsg = join(PHP_EOL, $missing);
+                throw new \Exception(
+                    $l->t('App "%s" cannot be installed because the following dependencies are not fulfilled: %s',
+                        array($info['name'], $missingMsg)
+                    )
+                );
+            }
+
+            $config->setAppValue($app, 'enabled', 'yes');
+            if (isset($appData['id'])) {
+                $config->setAppValue($app, 'ocsid', $appData['id']);
+            }
+
+            if(isset($info['settings']) && is_array($info['settings'])) {
+                $appPath = self::getAppPath($app);
+                self::registerAutoloading($app, $appPath);
+                \OC::$server->getSettingsManager()->setupSettings($info['settings']);
+            }
+
+            \OC_Hook::emit('OC_App', 'post_enable', array('app' => $app));
+        } else {
+            if(empty($appName) ) {
+                throw new \Exception($l->t("No app name specified"));
+            } else {
+                throw new \Exception($l->t("App '%s' could not be installed!", $appName));
+            }
+        }
+
+        return $app;
+    }
+
+    /**
+     * update the database for the app and call the update script
+     *
+     * @param string $appId
+     * @return bool
+     */
+    public static function updateApp($appId) {
+        $appPath = self::getAppPath($appId);
+        if($appPath === false) {
+            return false;
+        }
+        $appData = self::getAppInfo($appId);
+        self::executeRepairSteps($appId, $appData['repair-steps']['pre-migration']);
+        if (file_exists($appPath . '/appinfo/database.xml')) {
+            OC_DB::updateDbFromStructure($appPath . '/appinfo/database.xml');
+        }
+        self::executeRepairSteps($appId, $appData['repair-steps']['post-migration']);
+        self::setupLiveMigrations($appId, $appData['repair-steps']['live-migration']);
+        unset(self::$appVersion[$appId]);
+        // run upgrade code
+        if (file_exists($appPath . '/appinfo/update.php')) {
+            self::loadApp($appId, false);
+            include $appPath . '/appinfo/update.php';
+        }
+        self::setupBackgroundJobs($appData['background-jobs']);
+        if(isset($appData['settings']) && is_array($appData['settings'])) {
+            $appPath = self::getAppPath($appId);
+            self::registerAutoloading($appId, $appPath);
+            \OC::$server->getSettingsManager()->setupSettings($appData['settings']);
+        }
+
+        //set remote/public handlers
+        if (array_key_exists('ocsid', $appData)) {
+            \OC::$server->getConfig()->setAppValue($appId, 'ocsid', $appData['ocsid']);
+        } elseif(\OC::$server->getConfig()->getAppValue($appId, 'ocsid', null) !== null) {
+            \OC::$server->getConfig()->deleteAppValue($appId, 'ocsid');
+        }
+        foreach ($appData['remote'] as $name => $path) {
+            \OC::$server->getConfig()->setAppValue('core', 'remote_' . $name, $appId . '/' . $path);
+        }
+        foreach ($appData['public'] as $name => $path) {
+            \OC::$server->getConfig()->setAppValue('core', 'public_' . $name, $appId . '/' . $path);
+        }
+
+        self::setAppTypes($appId);
+
+        $version = \OC_App::getAppVersion($appId);
+        \OC::$server->getAppConfig()->setValue($appId, 'installed_version', $version);
+
+        \OC::$server->getEventDispatcher()->dispatch(ManagerEvent::EVENT_APP_UPDATE, new ManagerEvent(
+            ManagerEvent::EVENT_APP_UPDATE, $appId
+        ));
+
+        return true;
+    }
+
+    /**
+     * @param string $appId
+     * @param string[] $steps
+     * @throws \OC\NeedsUpdateException
+     */
+    public static function executeRepairSteps($appId, array $steps) {
+        if (empty($steps)) {
+            return;
+        }
+        // load the app
+        self::loadApp($appId, false);
+
+        $dispatcher = OC::$server->getEventDispatcher();
+
+        // load the steps
+        $r = new Repair([], $dispatcher);
+        foreach ($steps as $step) {
+            try {
+                $r->addStep($step);
+            } catch (Exception $ex) {
+                $r->emit('\OC\Repair', 'error', [$ex->getMessage()]);
+                \OC::$server->getLogger()->logException($ex);
+            }
+        }
+        // run the steps
+        $r->run();
+    }
+
+    public static function setupBackgroundJobs(array $jobs) {
+        $queue = \OC::$server->getJobList();
+        foreach ($jobs as $job) {
+            $queue->add($job);
+        }
+    }
+
+    /**
+     * @param string $appId
+     * @param string[] $steps
+     */
+    private static function setupLiveMigrations($appId, array $steps) {
+        $queue = \OC::$server->getJobList();
+        foreach ($steps as $step) {
+            $queue->add('OC\Migration\BackgroundRepair', [
+                'app' => $appId,
+                'step' => $step]);
+        }
+    }
+
+    /**
+     * @param string $appId
+     * @return \OC\Files\View|false
+     */
+    public static function getStorage($appId) {
+        if (OC_App::isEnabled($appId)) { //sanity check
+            if (OC_User::isLoggedIn()) {
+                $view = new \OC\Files\View('/' . OC_User::getUser());
+                if (!$view->file_exists($appId)) {
+                    $view->mkdir($appId);
+                }
+                return new \OC\Files\View('/' . OC_User::getUser() . '/' . $appId);
+            } else {
+                \OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ', user not logged in', \OCP\Util::ERROR);
+                return false;
+            }
+        } else {
+            \OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ' not enabled', \OCP\Util::ERROR);
+            return false;
+        }
+    }
+
+    protected static function findBestL10NOption($options, $lang) {
+        $fallback = $similarLangFallback = $englishFallback = false;
+
+        $lang = strtolower($lang);
+        $similarLang = $lang;
+        if (strpos($similarLang, '_')) {
+            // For "de_DE" we want to find "de" and the other way around
+            $similarLang = substr($lang, 0, strpos($lang, '_'));
+        }
+
+        foreach ($options as $option) {
+            if (is_array($option)) {
+                if ($fallback === false) {
+                    $fallback = $option['@value'];
+                }
+
+                if (!isset($option['@attributes']['lang'])) {
+                    continue;
+                }
+
+                $attributeLang = strtolower($option['@attributes']['lang']);
+                if ($attributeLang === $lang) {
+                    return $option['@value'];
+                }
+
+                if ($attributeLang === $similarLang) {
+                    $similarLangFallback = $option['@value'];
+                } else if (strpos($attributeLang, $similarLang . '_') === 0) {
+                    if ($similarLangFallback === false) {
+                        $similarLangFallback =  $option['@value'];
+                    }
+                }
+            } else {
+                $englishFallback = $option;
+            }
+        }
+
+        if ($similarLangFallback !== false) {
+            return $similarLangFallback;
+        } else if ($englishFallback !== false) {
+            return $englishFallback;
+        }
+        return (string) $fallback;
+    }
+
+    /**
+     * parses the app data array and enhanced the 'description' value
+     *
+     * @param array $data the app data
+     * @param string $lang
+     * @return array improved app data
+     */
+    public static function parseAppInfo(array $data, $lang = null) {
+
+        if ($lang && isset($data['name']) && is_array($data['name'])) {
+            $data['name'] = self::findBestL10NOption($data['name'], $lang);
+        }
+        if ($lang && isset($data['summary']) && is_array($data['summary'])) {
+            $data['summary'] = self::findBestL10NOption($data['summary'], $lang);
+        }
+        if ($lang && isset($data['description']) && is_array($data['description'])) {
+            $data['description'] = self::findBestL10NOption($data['description'], $lang);
+        }
+
+        // just modify the description if it is available
+        // otherwise this will create a $data element with an empty 'description'
+        if (isset($data['description'])) {
+            if (is_string($data['description'])) {
+                // sometimes the description contains line breaks and they are then also
+                // shown in this way in the app management which isn't wanted as HTML
+                // manages line breaks itself
+
+                // first of all we split on empty lines
+                $paragraphs = preg_split("!\n[[:space:]]*\n!mu", $data['description']);
+
+                $result = [];
+                foreach ($paragraphs as $value) {
+                    // replace multiple whitespace (tabs, space, newlines) inside a paragraph
+                    // with a single space - also trims whitespace
+                    $result[] = trim(preg_replace('![[:space:]]+!mu', ' ', $value));
+                }
+
+                // join the single paragraphs with a empty line in between
+                $data['description'] = implode("\n\n", $result);
+
+            } else {
+                $data['description'] = '';
+            }
+        }
+
+        return $data;
+    }
 }

Spacing +61 added lines, -61 removed lines

@@ -109,9 +109,9 @@ 
 		$apps = self::getEnabledApps();
 
 		// Add each apps' folder as allowed class path
-		foreach($apps as $app) {
+		foreach ($apps as $app) {
 			$path = self::getAppPath($app);
-			if($path !== false) {
+			if ($path !== false) {
 				self::registerAutoloading($app, $path);
 			}
 		}
@@ -138,15 +138,15 @@ 
 	public static function loadApp($app, $checkUpgrade = true) {
 		self::$loadedApps[] = $app;
 		$appPath = self::getAppPath($app);
-		if($appPath === false) {
+		if ($appPath === false) {
 			return;
 		}
 
 		// in case someone calls loadApp() directly
 		self::registerAutoloading($app, $appPath);
 
-		if (is_file($appPath . '/appinfo/app.php')) {
-			\OC::$server->getEventLogger()->start('load_app_' . $app, 'Load app: ' . $app);
+		if (is_file($appPath.'/appinfo/app.php')) {
+			\OC::$server->getEventLogger()->start('load_app_'.$app, 'Load app: '.$app);
 			if ($checkUpgrade and self::shouldUpgrade($app)) {
 				throw new \OC\NeedsUpdateException();
 			}
@@ -158,7 +158,7 @@ 
 				// enabled for groups
 				self::$enabledAppsCache = array();
 			}
-			\OC::$server->getEventLogger()->end('load_app_' . $app);
+			\OC::$server->getEventLogger()->end('load_app_'.$app);
 		}
 	}
 
@@ -168,16 +168,16 @@ 
 	 * @param string $path
 	 */
 	public static function registerAutoloading($app, $path) {
-		$key = $app . '-' . $path;
-		if(isset(self::$alreadyRegistered[$key])) {
+		$key = $app.'-'.$path;
+		if (isset(self::$alreadyRegistered[$key])) {
 			return;
 		}
 		self::$alreadyRegistered[$key] = true;
 		// Register on PSR-4 composer autoloader
 		$appNamespace = \OC\AppFramework\App::buildAppNamespace($app);
-		\OC::$composerAutoloader->addPsr4($appNamespace . '\\', $path . '/lib/', true);
+		\OC::$composerAutoloader->addPsr4($appNamespace.'\\', $path.'/lib/', true);
 		if (defined('PHPUNIT_RUN') || defined('CLI_TEST_RUN')) {
-			\OC::$composerAutoloader->addPsr4($appNamespace . '\\Tests\\', $path . '/tests/', true);
+			\OC::$composerAutoloader->addPsr4($appNamespace.'\\Tests\\', $path.'/tests/', true);
 		}
 
 		// Register on legacy autoloader
@@ -192,7 +192,7 @@ 
 	private static function requireAppFile($app) {
 		try {
 			// encapsulated here to avoid variable scope conflicts
-			require_once $app . '/appinfo/app.php';
+			require_once $app.'/appinfo/app.php';
 		} catch (Error $ex) {
 			\OC::$server->getLogger()->logException($ex);
 			$blacklist = \OC::$server->getAppManager()->getAlwaysEnabledApps();
@@ -246,7 +246,7 @@ 
 	 */
 	public static function setAppTypes($app) {
 		$appData = self::getAppInfo($app);
-		if(!is_array($appData)) {
+		if (!is_array($appData)) {
 			return;
 		}
 
@@ -302,8 +302,8 @@ 
 		} else {
 			$apps = $appManager->getEnabledAppsForUser($user);
 		}
-		$apps = array_filter($apps, function ($app) {
-			return $app !== 'files';//we add this manually
+		$apps = array_filter($apps, function($app) {
+			return $app !== 'files'; //we add this manually
 		});
 		sort($apps);
 		array_unshift($apps, 'files');
@@ -354,7 +354,7 @@ 
 		}
 
 		$info = self::getAppInfo($app);
-		if(isset($info['settings']) && is_array($info['settings'])) {
+		if (isset($info['settings']) && is_array($info['settings'])) {
 			$appPath = self::getAppPath($app);
 			self::registerAutoloading($app, $appPath);
 			\OC::$server->getSettingsManager()->setupSettings($info['settings']);
@@ -373,7 +373,7 @@ 
 		);
 		$appData = $ocsClient->getApplication($app, \OCP\Util::getVersion());
 		$download = $ocsClient->getApplicationDownload($app, \OCP\Util::getVersion());
-		if(isset($download['downloadlink']) and $download['downloadlink']!='') {
+		if (isset($download['downloadlink']) and $download['downloadlink'] != '') {
 			// Replace spaces in download link without encoding entire URL
 			$download['downloadlink'] = str_replace(' ', '%20', $download['downloadlink']);
 			$info = array('source' => 'http', 'href' => $download['downloadlink'], 'appdata' => $appData);
@@ -402,7 +402,7 @@ 
 	 */
 	public static function disable($app) {
 		// Convert OCS ID to regular application identifier
-		if(self::getInternalAppIdByOcs($app) !== false) {
+		if (self::getInternalAppIdByOcs($app) !== false) {
 			$app = self::getInternalAppIdByOcs($app);
 		}
 
@@ -465,7 +465,7 @@ 
 			//SubAdmins are also allowed to access user management
 			$userObject = \OC::$server->getUserSession()->getUser();
 			$isSubAdmin = false;
-			if($userObject !== null) {
+			if ($userObject !== null) {
 				$isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
 			}
 			if ($isSubAdmin) {
@@ -550,7 +550,7 @@ 
 	 */
 	protected static function findAppInDirectories($appId) {
 		$sanitizedAppId = self::cleanAppId($appId);
-		if($sanitizedAppId !== $appId) {
+		if ($sanitizedAppId !== $appId) {
 			return false;
 		}
 		static $app_dir = array();
@@ -561,7 +561,7 @@ 
 
 		$possibleApps = array();
 		foreach (OC::$APPSROOTS as $dir) {
-			if (file_exists($dir['path'] . '/' . $appId)) {
+			if (file_exists($dir['path'].'/'.$appId)) {
 				$possibleApps[] = $dir;
 			}
 		}
@@ -602,7 +602,7 @@ 
 		}
 
 		if (($dir = self::findAppInDirectories($appId)) != false) {
-			return $dir['path'] . '/' . $appId;
+			return $dir['path'].'/'.$appId;
 		}
 		return false;
 	}
@@ -628,7 +628,7 @@ 
 	 */
 	public static function getAppWebPath($appId) {
 		if (($dir = self::findAppInDirectories($appId)) != false) {
-			return OC::$WEBROOT . $dir['url'] . '/' . $appId;
+			return OC::$WEBROOT.$dir['url'].'/'.$appId;
 		}
 		return false;
 	}
@@ -654,7 +654,7 @@ 
 	 * @return string
 	 */
 	public static function getAppVersionByPath($path) {
-		$infoFile = $path . '/appinfo/info.xml';
+		$infoFile = $path.'/appinfo/info.xml';
 		$appData = self::getAppInfo($infoFile, true);
 		return isset($appData['version']) ? $appData['version'] : '';
 	}
@@ -677,10 +677,10 @@ 
 				return self::$appInfo[$appId];
 			}
 			$appPath = self::getAppPath($appId);
-			if($appPath === false) {
+			if ($appPath === false) {
 				return null;
 			}
-			$file = $appPath . '/appinfo/info.xml';
+			$file = $appPath.'/appinfo/info.xml';
 		}
 
 		$parser = new \OC\App\InfoParser(\OC::$server->getURLGenerator());
@@ -689,9 +689,9 @@ 
 		if (is_array($data)) {
 			$data = OC_App::parseAppInfo($data, $lang);
 		}
-		if(isset($data['ocsid'])) {
+		if (isset($data['ocsid'])) {
 			$storedId = \OC::$server->getConfig()->getAppValue($appId, 'ocsid');
-			if($storedId !== '' && $storedId !== $data['ocsid']) {
+			if ($storedId !== '' && $storedId !== $data['ocsid']) {
 				$data['ocsid'] = $storedId;
 			}
 		}
@@ -771,7 +771,7 @@ 
 	 * @param string $page
 	 */
 	public static function registerAdmin($app, $page) {
-		self::$adminForms[] = $app . '/' . $page . '.php';
+		self::$adminForms[] = $app.'/'.$page.'.php';
 	}
 
 	/**
@@ -780,7 +780,7 @@ 
 	 * @param string $page
 	 */
 	public static function registerPersonal($app, $page) {
-		self::$personalForms[] = $app . '/' . $page . '.php';
+		self::$personalForms[] = $app.'/'.$page.'.php';
 	}
 
 	/**
@@ -809,7 +809,7 @@ 
 
 		foreach (OC::$APPSROOTS as $apps_dir) {
 			if (!is_readable($apps_dir['path'])) {
-				\OCP\Util::writeLog('core', 'unable to read app folder : ' . $apps_dir['path'], \OCP\Util::WARN);
+				\OCP\Util::writeLog('core', 'unable to read app folder : '.$apps_dir['path'], \OCP\Util::WARN);
 				continue;
 			}
 			$dh = opendir($apps_dir['path']);
@@ -817,7 +817,7 @@ 
 			if (is_resource($dh)) {
 				while (($file = readdir($dh)) !== false) {
 
-					if ($file[0] != '.' and is_dir($apps_dir['path'] . '/' . $file) and is_file($apps_dir['path'] . '/' . $file . '/appinfo/info.xml')) {
+					if ($file[0] != '.' and is_dir($apps_dir['path'].'/'.$file) and is_file($apps_dir['path'].'/'.$file.'/appinfo/info.xml')) {
 
 						$apps[] = $file;
 					}
@@ -855,12 +855,12 @@ 
 
 				$info = OC_App::getAppInfo($app, false, $langCode);
 				if (!is_array($info)) {
-					\OCP\Util::writeLog('core', 'Could not read app info file for app "' . $app . '"', \OCP\Util::ERROR);
+					\OCP\Util::writeLog('core', 'Could not read app info file for app "'.$app.'"', \OCP\Util::ERROR);
 					continue;
 				}
 
 				if (!isset($info['name'])) {
-					\OCP\Util::writeLog('core', 'App id "' . $app . '" has no name in appinfo', \OCP\Util::ERROR);
+					\OCP\Util::writeLog('core', 'App id "'.$app.'" has no name in appinfo', \OCP\Util::ERROR);
 					continue;
 				}
 
@@ -889,13 +889,13 @@ 
 				$info['update'] = ($includeUpdateInfo) ? Installer::isUpdateAvailable($app) : null;
 
 				$appPath = self::getAppPath($app);
-				if($appPath !== false) {
-					$appIcon = $appPath . '/img/' . $app . '.svg';
+				if ($appPath !== false) {
+					$appIcon = $appPath.'/img/'.$app.'.svg';
 					if (file_exists($appIcon)) {
-						$info['preview'] = \OC::$server->getURLGenerator()->imagePath($app, $app . '.svg');
+						$info['preview'] = \OC::$server->getURLGenerator()->imagePath($app, $app.'.svg');
 						$info['previewAsIcon'] = true;
 					} else {
-						$appIcon = $appPath . '/img/app.svg';
+						$appIcon = $appPath.'/img/app.svg';
 						if (file_exists($appIcon)) {
 							$info['preview'] = \OC::$server->getURLGenerator()->imagePath($app, 'app.svg');
 							$info['previewAsIcon'] = true;
@@ -937,9 +937,9 @@ 
 	 * @return string|false
 	 */
 	public static function getInternalAppIdByOcs($ocsID) {
-		if(is_numeric($ocsID)) {
+		if (is_numeric($ocsID)) {
 			$idArray = \OC::$server->getAppConfig()->getValues(false, 'ocsid');
-			if(array_search($ocsID, $idArray)) {
+			if (array_search($ocsID, $idArray)) {
 				return array_search($ocsID, $idArray);
 			}
 		}
@@ -989,7 +989,7 @@ 
 			$apps[$i]['score'] = $app['score'];
 			$apps[$i]['removable'] = false;
 			if ($app['label'] == 'recommended') {
-				$apps[$i]['internallabel'] = (string)$l->t('Recommended');
+				$apps[$i]['internallabel'] = (string) $l->t('Recommended');
 				$apps[$i]['internalclass'] = 'recommendedapp';
 			}
 
@@ -1103,7 +1103,7 @@ 
 	public static function getAppVersions() {
 		static $versions;
 
-		if(!$versions) {
+		if (!$versions) {
 			$appConfig = \OC::$server->getAppConfig();
 			$versions = $appConfig->getValues(false, 'installed_version');
 		}
@@ -1140,8 +1140,8 @@ 
 			// case and use the local already installed one.
 			// FIXME: This is a horrible hack. I feel sad. The god of code cleanness may forgive me.
 			$internalAppId = self::getInternalAppIdByOcs($app);
-			if($internalAppId !== false) {
-				if($appData && version_compare(\OC_App::getAppVersion($internalAppId), $appData['version'], '<')) {
+			if ($internalAppId !== false) {
+				if ($appData && version_compare(\OC_App::getAppVersion($internalAppId), $appData['version'], '<')) {
 					$app = self::downloadApp($app);
 				} else {
 					self::enable($internalAppId);
@@ -1155,7 +1155,7 @@ 
 		if ($app !== false) {
 			// check if the app is compatible with this version of ownCloud
 			$info = self::getAppInfo($app);
-			if(!is_array($info)) {
+			if (!is_array($info)) {
 				throw new \Exception(
 					$l->t('App "%s" cannot be installed because appinfo file cannot be read.',
 						[$info['name']]
@@ -1189,7 +1189,7 @@ 
 				$config->setAppValue($app, 'ocsid', $appData['id']);
 			}
 
-			if(isset($info['settings']) && is_array($info['settings'])) {
+			if (isset($info['settings']) && is_array($info['settings'])) {
 				$appPath = self::getAppPath($app);
 				self::registerAutoloading($app, $appPath);
 				\OC::$server->getSettingsManager()->setupSettings($info['settings']);
@@ -1197,7 +1197,7 @@ 
 
 			\OC_Hook::emit('OC_App', 'post_enable', array('app' => $app));
 		} else {
-			if(empty($appName) ) {
+			if (empty($appName)) {
 				throw new \Exception($l->t("No app name specified"));
 			} else {
 				throw new \Exception($l->t("App '%s' could not be installed!", $appName));
@@ -1215,24 +1215,24 @@ 
 	 */
 	public static function updateApp($appId) {
 		$appPath = self::getAppPath($appId);
-		if($appPath === false) {
+		if ($appPath === false) {
 			return false;
 		}
 		$appData = self::getAppInfo($appId);
 		self::executeRepairSteps($appId, $appData['repair-steps']['pre-migration']);
-		if (file_exists($appPath . '/appinfo/database.xml')) {
-			OC_DB::updateDbFromStructure($appPath . '/appinfo/database.xml');
+		if (file_exists($appPath.'/appinfo/database.xml')) {
+			OC_DB::updateDbFromStructure($appPath.'/appinfo/database.xml');
 		}
 		self::executeRepairSteps($appId, $appData['repair-steps']['post-migration']);
 		self::setupLiveMigrations($appId, $appData['repair-steps']['live-migration']);
 		unset(self::$appVersion[$appId]);
 		// run upgrade code
-		if (file_exists($appPath . '/appinfo/update.php')) {
+		if (file_exists($appPath.'/appinfo/update.php')) {
 			self::loadApp($appId, false);
-			include $appPath . '/appinfo/update.php';
+			include $appPath.'/appinfo/update.php';
 		}
 		self::setupBackgroundJobs($appData['background-jobs']);
-		if(isset($appData['settings']) && is_array($appData['settings'])) {
+		if (isset($appData['settings']) && is_array($appData['settings'])) {
 			$appPath = self::getAppPath($appId);
 			self::registerAutoloading($appId, $appPath);
 			\OC::$server->getSettingsManager()->setupSettings($appData['settings']);
@@ -1241,14 +1241,14 @@ 
 		//set remote/public handlers
 		if (array_key_exists('ocsid', $appData)) {
 			\OC::$server->getConfig()->setAppValue($appId, 'ocsid', $appData['ocsid']);
-		} elseif(\OC::$server->getConfig()->getAppValue($appId, 'ocsid', null) !== null) {
+		} elseif (\OC::$server->getConfig()->getAppValue($appId, 'ocsid', null) !== null) {
 			\OC::$server->getConfig()->deleteAppValue($appId, 'ocsid');
 		}
 		foreach ($appData['remote'] as $name => $path) {
-			\OC::$server->getConfig()->setAppValue('core', 'remote_' . $name, $appId . '/' . $path);
+			\OC::$server->getConfig()->setAppValue('core', 'remote_'.$name, $appId.'/'.$path);
 		}
 		foreach ($appData['public'] as $name => $path) {
-			\OC::$server->getConfig()->setAppValue('core', 'public_' . $name, $appId . '/' . $path);
+			\OC::$server->getConfig()->setAppValue('core', 'public_'.$name, $appId.'/'.$path);
 		}
 
 		self::setAppTypes($appId);
@@ -1318,17 +1318,17 @@ 
 	public static function getStorage($appId) {
 		if (OC_App::isEnabled($appId)) { //sanity check
 			if (OC_User::isLoggedIn()) {
-				$view = new \OC\Files\View('/' . OC_User::getUser());
+				$view = new \OC\Files\View('/'.OC_User::getUser());
 				if (!$view->file_exists($appId)) {
 					$view->mkdir($appId);
 				}
-				return new \OC\Files\View('/' . OC_User::getUser() . '/' . $appId);
+				return new \OC\Files\View('/'.OC_User::getUser().'/'.$appId);
 			} else {
-				\OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ', user not logged in', \OCP\Util::ERROR);
+				\OCP\Util::writeLog('core', 'Can\'t get app storage, app '.$appId.', user not logged in', \OCP\Util::ERROR);
 				return false;
 			}
 		} else {
-			\OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ' not enabled', \OCP\Util::ERROR);
+			\OCP\Util::writeLog('core', 'Can\'t get app storage, app '.$appId.' not enabled', \OCP\Util::ERROR);
 			return false;
 		}
 	}
@@ -1360,9 +1360,9 @@ 
 
 				if ($attributeLang === $similarLang) {
 					$similarLangFallback = $option['@value'];
-				} else if (strpos($attributeLang, $similarLang . '_') === 0) {
+				} else if (strpos($attributeLang, $similarLang.'_') === 0) {
 					if ($similarLangFallback === false) {
-						$similarLangFallback =  $option['@value'];
+						$similarLangFallback = $option['@value'];
 					}
 				}
 			} else {

apps/dav/lib/Connector/Sabre/DavAclPlugin.php

Doc Comments +3 added lines

@@ -46,6 +46,9 @@
 		$this->hideNodesFromListings = true;
 	}
 
+	/**
+	 * @param string $privileges
+	 */
 	function checkPrivileges($uri, $privileges, $recursion = self::R_PARENT, $throwExceptions = true) {
 		$access = parent::checkPrivileges($uri, $privileges, $recursion, false);
 		if($access === false && $throwExceptions) {

Unused Use Statements -3 removed lines

@@ -25,14 +25,11 @@
 
 use Sabre\CalDAV\Principal\User;
 use Sabre\DAV\Exception\NotFound;
-use Sabre\DAV\IFile;
 use Sabre\DAV\INode;
 use \Sabre\DAV\PropFind;
 use \Sabre\DAV\PropPatch;
-use Sabre\DAVACL\Exception\NeedPrivileges;
 use \Sabre\HTTP\RequestInterface;
 use \Sabre\HTTP\ResponseInterface;
-use Sabre\HTTP\URLUtil;
 
 /**
  * Class DavAclPlugin is a wrapper around \Sabre\DAVACL\Plugin that returns 404

Spacing +3 added lines, -3 removed lines

@@ -50,11 +50,11 @@ 
 
 	function checkPrivileges($uri, $privileges, $recursion = self::R_PARENT, $throwExceptions = true) {
 		$access = parent::checkPrivileges($uri, $privileges, $recursion, false);
-		if($access === false && $throwExceptions) {
+		if ($access === false && $throwExceptions) {
 			/** @var INode $node */
 			$node = $this->server->tree->getNodeForPath($uri);
 
-			switch(get_class($node)) {
+			switch (get_class($node)) {
 				case 'OCA\DAV\CardDAV\AddressBook':
 					$type = 'Addressbook';
 					break;
@@ -77,7 +77,7 @@ 
 	public function propFind(PropFind $propFind, INode $node) {
 		// If the node is neither readable nor writable then fail unless its of
 		// the standard user-principal
-		if(!($node instanceof User)) {
+		if (!($node instanceof User)) {
 			$path = $propFind->getPath();
 			$readPermissions = $this->checkPrivileges($path, '{DAV:}read', self::R_PARENT, false);
 			$writePermissions = $this->checkPrivileges($path, '{DAV:}write', self::R_PARENT, false);

Indentation +40 added lines, -40 removed lines

@@ -43,49 +43,49 @@
  * @package OCA\DAV\Connector\Sabre
  */
 class DavAclPlugin extends \Sabre\DAVACL\Plugin {
-	public function __construct() {
-		$this->hideNodesFromListings = true;
-	}
+    public function __construct() {
+        $this->hideNodesFromListings = true;
+    }
 
-	function checkPrivileges($uri, $privileges, $recursion = self::R_PARENT, $throwExceptions = true) {
-		$access = parent::checkPrivileges($uri, $privileges, $recursion, false);
-		if($access === false && $throwExceptions) {
-			/** @var INode $node */
-			$node = $this->server->tree->getNodeForPath($uri);
+    function checkPrivileges($uri, $privileges, $recursion = self::R_PARENT, $throwExceptions = true) {
+        $access = parent::checkPrivileges($uri, $privileges, $recursion, false);
+        if($access === false && $throwExceptions) {
+            /** @var INode $node */
+            $node = $this->server->tree->getNodeForPath($uri);
 
-			switch(get_class($node)) {
-				case 'OCA\DAV\CardDAV\AddressBook':
-					$type = 'Addressbook';
-					break;
-				default:
-					$type = 'Node';
-					break;
-			}
-			throw new NotFound(
-				sprintf(
-					"%s with name '%s' could not be found",
-					$type,
-					$node->getName()
-				)
-			);
-		}
+            switch(get_class($node)) {
+                case 'OCA\DAV\CardDAV\AddressBook':
+                    $type = 'Addressbook';
+                    break;
+                default:
+                    $type = 'Node';
+                    break;
+            }
+            throw new NotFound(
+                sprintf(
+                    "%s with name '%s' could not be found",
+                    $type,
+                    $node->getName()
+                )
+            );
+        }
 
-		return $access;
-	}
+        return $access;
+    }
 
-	public function propFind(PropFind $propFind, INode $node) {
-		// If the node is neither readable nor writable then fail unless its of
-		// the standard user-principal
-		if(!($node instanceof User)) {
-			$path = $propFind->getPath();
-			$readPermissions = $this->checkPrivileges($path, '{DAV:}read', self::R_PARENT, false);
-			$writePermissions = $this->checkPrivileges($path, '{DAV:}write', self::R_PARENT, false);
-			if ($readPermissions === false && $writePermissions === false) {
-				$this->checkPrivileges($path, '{DAV:}read', self::R_PARENT, true);
-				$this->checkPrivileges($path, '{DAV:}write', self::R_PARENT, true);
-			}
-		}
+    public function propFind(PropFind $propFind, INode $node) {
+        // If the node is neither readable nor writable then fail unless its of
+        // the standard user-principal
+        if(!($node instanceof User)) {
+            $path = $propFind->getPath();
+            $readPermissions = $this->checkPrivileges($path, '{DAV:}read', self::R_PARENT, false);
+            $writePermissions = $this->checkPrivileges($path, '{DAV:}write', self::R_PARENT, false);
+            if ($readPermissions === false && $writePermissions === false) {
+                $this->checkPrivileges($path, '{DAV:}read', self::R_PARENT, true);
+                $this->checkPrivileges($path, '{DAV:}write', self::R_PARENT, true);
+            }
+        }
 
-		return parent::propFind($propFind, $node);
-	}
+        return parent::propFind($propFind, $node);
+    }
 }

apps/files/templates/admin.php

Spacing +6 added lines, -6 removed lines

@@ -2,17 +2,17 @@
 
 	<div class="section">
 		<h2><?php p($l->t('File handling')); ?></h2>
-		<label for="maxUploadSize"><?php p($l->t( 'Maximum upload size' )); ?> </label>
+		<label for="maxUploadSize"><?php p($l->t('Maximum upload size')); ?> </label>
 		<span id="maxUploadSizeSettingsMsg" class="msg"></span>
 		<br />
-		<input type="text" name='maxUploadSize' id="maxUploadSize" value='<?php p($_['uploadMaxFilesize']) ?>' <?php if(!$_['uploadChangable']) { p('disabled'); } ?> />
-		<?php if($_['displayMaxPossibleUploadSize']):?>
+		<input type="text" name='maxUploadSize' id="maxUploadSize" value='<?php p($_['uploadMaxFilesize']) ?>' <?php if (!$_['uploadChangable']) { p('disabled'); } ?> />
+		<?php if ($_['displayMaxPossibleUploadSize']):?>
 			(<?php p($l->t('max. possible: ')); p($_['maxPossibleUploadSize']) ?>)
-		<?php endif;?>
+		<?php endif; ?>
 		<input type="hidden" value="<?php p($_['requesttoken']); ?>" name="requesttoken" />
-		<?php if($_['uploadChangable']): ?>
+		<?php if ($_['uploadChangable']): ?>
 			<input type="submit" id="submitMaxUpload"
-				   value="<?php p($l->t( 'Save' )); ?>"/>
+				   value="<?php p($l->t('Save')); ?>"/>
 			<p><em><?php p($l->t('With PHP-FPM it might take 5 minutes for changes to be applied.')); ?></em></p>
 		<?php else: ?>
 			<p><em><?php p($l->t('Missing permissions to edit from here.')); ?></em></p>

Braces +5 added lines, -2 removed lines

@@ -14,7 +14,10 @@
 			<input type="submit" id="submitMaxUpload"
 				   value="<?php p($l->t( 'Save' )); ?>"/>
 			<p><em><?php p($l->t('With PHP-FPM it might take 5 minutes for changes to be applied.')); ?></em></p>
-		<?php else: ?>
-			<p><em><?php p($l->t('Missing permissions to edit from here.')); ?></em></p>
+		<?php else {
+    : ?>
+			<p><em><?php p($l->t('Missing permissions to edit from here.'));
+}
+?></em></p>
 		<?php endif; ?>
 	</div>

apps/files/templates/simplelist.php

Spacing +2 added lines, -2 removed lines

@@ -19,14 +19,14 @@
 		<tr>
 			<th id='headerName' class="hidden column-name">
 				<div id="headerName-container">
-					<a class="name sort columntitle" data-sort="name"><span><?php p($l->t( 'Name' )); ?></span><span class="sort-indicator"></span></a>
+					<a class="name sort columntitle" data-sort="name"><span><?php p($l->t('Name')); ?></span><span class="sort-indicator"></span></a>
 				</div>
 			</th>
 			<th id="headerSize" class="hidden column-size">
 				<a class="size sort columntitle" data-sort="size"><span><?php p($l->t('Size')); ?></span><span class="sort-indicator"></span></a>
 			</th>
 			<th id="headerDate" class="hidden column-mtime">
-				<a id="modified" class="columntitle" data-sort="mtime"><span><?php p($l->t( 'Modified' )); ?></span><span class="sort-indicator"></span></a>
+				<a id="modified" class="columntitle" data-sort="mtime"><span><?php p($l->t('Modified')); ?></span><span class="sort-indicator"></span></a>
 					<span class="selectedActions"><a href="" class="delete-selected">
 						<?php p($l->t('Delete'))?>
 						<img class="svg" alt="<?php p($l->t('Delete'))?>"

apps/files/templates/appnavigation.php

Spacing +4 added lines, -4 removed lines

@@ -4,7 +4,7 @@ 
 		<li data-id="<?php p($item['id']) ?>" class="nav-<?php p($item['id']) ?>">
 			<a href="<?php p(isset($item['href']) ? $item['href'] : '#') ?>"
 				class="nav-icon-<?php p($item['icon'] !== '' ? $item['icon'] : $item['id']) ?> svg">
-				<?php p($item['name']);?>
+				<?php p($item['name']); ?>
 			</a>
 		</li>
 		<?php } ?>
@@ -12,7 +12,7 @@ 
 	<div id="app-settings">
 		<div id="app-settings-header">
 			<button class="settings-button" data-apps-slide-toggle="#app-settings-content">
-				<?php p($l->t('Settings'));?>
+				<?php p($l->t('Settings')); ?>
 			</button>
 		</div>
 		<div id="app-settings-content">
@@ -20,9 +20,9 @@ 
 				<input class="checkbox" id="showhiddenfilesToggle" checked="checked" type="checkbox">
 				<label for="showhiddenfilesToggle"><?php p($l->t('Show hidden files')); ?></label>
 			</div>
-			<label for="webdavurl"><?php p($l->t('WebDAV'));?></label>
+			<label for="webdavurl"><?php p($l->t('WebDAV')); ?></label>
 			<input id="webdavurl" type="text" readonly="readonly" value="<?php p(\OCP\Util::linkToRemote('webdav')); ?>" />
-			<em><?php print_unescaped($l->t('Use this address to <a href="%s" target="_blank" rel="noreferrer">access your Files via WebDAV</a>', array(link_to_docs('user-webdav'))));?></em>
+			<em><?php print_unescaped($l->t('Use this address to <a href="%s" target="_blank" rel="noreferrer">access your Files via WebDAV</a>', array(link_to_docs('user-webdav')))); ?></em>
 		</div>
 	</div>
 </div>