nextcloud / server

lib/private/Setup/MySQL.php

Indentation +139 added lines, -139 removed lines

@@ -34,143 +34,143 @@
 use OCP\ILogger;
 
 class MySQL extends AbstractDatabase {
-	public $dbprettyname = 'MySQL/MariaDB';
-
-	public function setupDatabase($username) {
-		//check if the database user has admin right
-		$connection = $this->connect(['dbname' => null]);
-
-		// detect mb4
-		$tools = new MySqlTools();
-		if ($tools->supports4ByteCharset($connection)) {
-			$this->config->setValue('mysql.utf8mb4', true);
-			$connection = $this->connect(['dbname' => null]);
-		}
-
-		$this->createSpecificUser($username, $connection);
-
-		//create the database
-		$this->createDatabase($connection);
-
-		//fill the database if needed
-		$query='select count(*) from information_schema.tables where table_schema=? AND table_name = ?';
-		$connection->executeQuery($query, [$this->dbName, $this->tablePrefix.'users']);
-	}
-
-	/**
-	 * @param \OC\DB\Connection $connection
-	 */
-	private function createDatabase($connection) {
-		try{
-			$name = $this->dbName;
-			$user = $this->dbUser;
-			//we can't use OC_DB functions here because we need to connect as the administrative user.
-			$characterSet = $this->config->getValue('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
-			$query = "CREATE DATABASE IF NOT EXISTS `$name` CHARACTER SET $characterSet COLLATE ${characterSet}_bin;";
-			$connection->executeUpdate($query);
-		} catch (\Exception $ex) {
-			$this->logger->logException($ex, [
-				'message' => 'Database creation failed.',
-				'level' => ILogger::ERROR,
-				'app' => 'mysql.setup',
-			]);
-			return;
-		}
-
-		try {
-			//this query will fail if there aren't the right permissions, ignore the error
-			$query="GRANT ALL PRIVILEGES ON `$name` . * TO '$user'";
-			$connection->executeUpdate($query);
-		} catch (\Exception $ex) {
-			$this->logger->logException($ex, [
-				'message' => 'Could not automatically grant privileges, this can be ignored if database user already had privileges.',
-				'level' => ILogger::DEBUG,
-				'app' => 'mysql.setup',
-			]);
-		}
-	}
-
-	/**
-	 * @param IDBConnection $connection
-	 * @throws \OC\DatabaseSetupException
-	 */
-	private function createDBUser($connection) {
-		try{
-			$name = $this->dbUser;
-			$password = $this->dbPassword;
-			// we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one,
-			// the anonymous user would take precedence when there is one.
-			$query = "CREATE USER '$name'@'localhost' IDENTIFIED BY '$password'";
-			$connection->executeUpdate($query);
-			$query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
-			$connection->executeUpdate($query);
-		}
-		catch (\Exception $ex){
-			$this->logger->logException($ex, [
-				'message' => 'Database user creation failed.',
-				'level' => ILogger::ERROR,
-				'app' => 'mysql.setup',
-			]);
-		}
-	}
-
-	/**
-	 * @param $username
-	 * @param IDBConnection $connection
-	 * @return array
-	 */
-	private function createSpecificUser($username, $connection) {
-		try {
-			//user already specified in config
-			$oldUser = $this->config->getValue('dbuser', false);
-
-			//we don't have a dbuser specified in config
-			if ($this->dbUser !== $oldUser) {
-				//add prefix to the admin username to prevent collisions
-				$adminUser = substr('oc_' . $username, 0, 16);
-
-				$i = 1;
-				while (true) {
-					//this should be enough to check for admin rights in mysql
-					$query = 'SELECT user FROM mysql.user WHERE user=?';
-					$result = $connection->executeQuery($query, [$adminUser]);
-
-					//current dbuser has admin rights
-					if ($result) {
-						$data = $result->fetchAll();
-						//new dbuser does not exist
-						if (count($data) === 0) {
-							//use the admin login data for the new database user
-							$this->dbUser = $adminUser;
-
-							//create a random password so we don't need to store the admin password in the config file
-							$this->dbPassword =  $this->random->generate(30);
-
-							$this->createDBUser($connection);
-
-							break;
-						} else {
-							//repeat with different username
-							$length = strlen((string)$i);
-							$adminUser = substr('oc_' . $username, 0, 16 - $length) . $i;
-							$i++;
-						}
-					} else {
-						break;
-					}
-				}
-			}
-		} catch (\Exception $ex) {
-			$this->logger->logException($ex, [
-				'message' => 'Can not create a new MySQL user, will continue with the provided user.',
-				'level' => ILogger::INFO,
-				'app' => 'mysql.setup',
-			]);
-		}
-
-		$this->config->setValues([
-			'dbuser' => $this->dbUser,
-			'dbpassword' => $this->dbPassword,
-		]);
-	}
+    public $dbprettyname = 'MySQL/MariaDB';
+
+    public function setupDatabase($username) {
+        //check if the database user has admin right
+        $connection = $this->connect(['dbname' => null]);
+
+        // detect mb4
+        $tools = new MySqlTools();
+        if ($tools->supports4ByteCharset($connection)) {
+            $this->config->setValue('mysql.utf8mb4', true);
+            $connection = $this->connect(['dbname' => null]);
+        }
+
+        $this->createSpecificUser($username, $connection);
+
+        //create the database
+        $this->createDatabase($connection);
+
+        //fill the database if needed
+        $query='select count(*) from information_schema.tables where table_schema=? AND table_name = ?';
+        $connection->executeQuery($query, [$this->dbName, $this->tablePrefix.'users']);
+    }
+
+    /**
+     * @param \OC\DB\Connection $connection
+     */
+    private function createDatabase($connection) {
+        try{
+            $name = $this->dbName;
+            $user = $this->dbUser;
+            //we can't use OC_DB functions here because we need to connect as the administrative user.
+            $characterSet = $this->config->getValue('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
+            $query = "CREATE DATABASE IF NOT EXISTS `$name` CHARACTER SET $characterSet COLLATE ${characterSet}_bin;";
+            $connection->executeUpdate($query);
+        } catch (\Exception $ex) {
+            $this->logger->logException($ex, [
+                'message' => 'Database creation failed.',
+                'level' => ILogger::ERROR,
+                'app' => 'mysql.setup',
+            ]);
+            return;
+        }
+
+        try {
+            //this query will fail if there aren't the right permissions, ignore the error
+            $query="GRANT ALL PRIVILEGES ON `$name` . * TO '$user'";
+            $connection->executeUpdate($query);
+        } catch (\Exception $ex) {
+            $this->logger->logException($ex, [
+                'message' => 'Could not automatically grant privileges, this can be ignored if database user already had privileges.',
+                'level' => ILogger::DEBUG,
+                'app' => 'mysql.setup',
+            ]);
+        }
+    }
+
+    /**
+     * @param IDBConnection $connection
+     * @throws \OC\DatabaseSetupException
+     */
+    private function createDBUser($connection) {
+        try{
+            $name = $this->dbUser;
+            $password = $this->dbPassword;
+            // we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one,
+            // the anonymous user would take precedence when there is one.
+            $query = "CREATE USER '$name'@'localhost' IDENTIFIED BY '$password'";
+            $connection->executeUpdate($query);
+            $query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
+            $connection->executeUpdate($query);
+        }
+        catch (\Exception $ex){
+            $this->logger->logException($ex, [
+                'message' => 'Database user creation failed.',
+                'level' => ILogger::ERROR,
+                'app' => 'mysql.setup',
+            ]);
+        }
+    }
+
+    /**
+     * @param $username
+     * @param IDBConnection $connection
+     * @return array
+     */
+    private function createSpecificUser($username, $connection) {
+        try {
+            //user already specified in config
+            $oldUser = $this->config->getValue('dbuser', false);
+
+            //we don't have a dbuser specified in config
+            if ($this->dbUser !== $oldUser) {
+                //add prefix to the admin username to prevent collisions
+                $adminUser = substr('oc_' . $username, 0, 16);
+
+                $i = 1;
+                while (true) {
+                    //this should be enough to check for admin rights in mysql
+                    $query = 'SELECT user FROM mysql.user WHERE user=?';
+                    $result = $connection->executeQuery($query, [$adminUser]);
+
+                    //current dbuser has admin rights
+                    if ($result) {
+                        $data = $result->fetchAll();
+                        //new dbuser does not exist
+                        if (count($data) === 0) {
+                            //use the admin login data for the new database user
+                            $this->dbUser = $adminUser;
+
+                            //create a random password so we don't need to store the admin password in the config file
+                            $this->dbPassword =  $this->random->generate(30);
+
+                            $this->createDBUser($connection);
+
+                            break;
+                        } else {
+                            //repeat with different username
+                            $length = strlen((string)$i);
+                            $adminUser = substr('oc_' . $username, 0, 16 - $length) . $i;
+                            $i++;
+                        }
+                    } else {
+                        break;
+                    }
+                }
+            }
+        } catch (\Exception $ex) {
+            $this->logger->logException($ex, [
+                'message' => 'Can not create a new MySQL user, will continue with the provided user.',
+                'level' => ILogger::INFO,
+                'app' => 'mysql.setup',
+            ]);
+        }
+
+        $this->config->setValues([
+            'dbuser' => $this->dbUser,
+            'dbpassword' => $this->dbPassword,
+        ]);
+    }
 }

Spacing +9 added lines, -9 removed lines

@@ -53,7 +53,7 @@ 
 		$this->createDatabase($connection);
 
 		//fill the database if needed
-		$query='select count(*) from information_schema.tables where table_schema=? AND table_name = ?';
+		$query = 'select count(*) from information_schema.tables where table_schema=? AND table_name = ?';
 		$connection->executeQuery($query, [$this->dbName, $this->tablePrefix.'users']);
 	}
 
@@ -61,7 +61,7 @@ 
 	 * @param \OC\DB\Connection $connection
 	 */
 	private function createDatabase($connection) {
-		try{
+		try {
 			$name = $this->dbName;
 			$user = $this->dbUser;
 			//we can't use OC_DB functions here because we need to connect as the administrative user.
@@ -79,7 +79,7 @@ 
 
 		try {
 			//this query will fail if there aren't the right permissions, ignore the error
-			$query="GRANT ALL PRIVILEGES ON `$name` . * TO '$user'";
+			$query = "GRANT ALL PRIVILEGES ON `$name` . * TO '$user'";
 			$connection->executeUpdate($query);
 		} catch (\Exception $ex) {
 			$this->logger->logException($ex, [
@@ -95,7 +95,7 @@ 
 	 * @throws \OC\DatabaseSetupException
 	 */
 	private function createDBUser($connection) {
-		try{
+		try {
 			$name = $this->dbUser;
 			$password = $this->dbPassword;
 			// we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one,
@@ -105,7 +105,7 @@ 
 			$query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
 			$connection->executeUpdate($query);
 		}
-		catch (\Exception $ex){
+		catch (\Exception $ex) {
 			$this->logger->logException($ex, [
 				'message' => 'Database user creation failed.',
 				'level' => ILogger::ERROR,
@@ -127,7 +127,7 @@ 
 			//we don't have a dbuser specified in config
 			if ($this->dbUser !== $oldUser) {
 				//add prefix to the admin username to prevent collisions
-				$adminUser = substr('oc_' . $username, 0, 16);
+				$adminUser = substr('oc_'.$username, 0, 16);
 
 				$i = 1;
 				while (true) {
@@ -144,15 +144,15 @@ 
 							$this->dbUser = $adminUser;
 
 							//create a random password so we don't need to store the admin password in the config file
-							$this->dbPassword =  $this->random->generate(30);
+							$this->dbPassword = $this->random->generate(30);
 
 							$this->createDBUser($connection);
 
 							break;
 						} else {
 							//repeat with different username
-							$length = strlen((string)$i);
-							$adminUser = substr('oc_' . $username, 0, 16 - $length) . $i;
+							$length = strlen((string) $i);
+							$adminUser = substr('oc_'.$username, 0, 16 - $length).$i;
 							$i++;
 						}
 					} else {

Braces +1 added lines, -2 removed lines

@@ -104,8 +104,7 @@
 			$connection->executeUpdate($query);
 			$query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
 			$connection->executeUpdate($query);
-		}
-		catch (\Exception $ex){
+		} catch (\Exception $ex){
 			$this->logger->logException($ex, [
 				'message' => 'Database user creation failed.',
 				'level' => ILogger::ERROR,

lib/private/Preview/Bitmap.php

Indentation +81 added lines, -81 removed lines

@@ -35,86 +35,86 @@
  */
 abstract class Bitmap extends Provider {
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
-
-		$tmpPath = $fileview->toTmpFile($path);
-		if (!$tmpPath) {
-			return false;
-		}
-
-		// Creates \Imagick object from bitmap or vector file
-		try {
-			$bp = $this->getResizedPreview($tmpPath, $maxX, $maxY);
-		} catch (\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => 'Imagick says:',
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-
-		unlink($tmpPath);
-
-		//new bitmap image object
-		$image = new \OC_Image();
-		$image->loadFromData($bp);
-		//check if image object is valid
-		return $image->valid() ? $image : false;
-	}
-
-	/**
-	 * Returns a preview of maxX times maxY dimensions in PNG format
-	 *
-	 *    * The default resolution is already 72dpi, no need to change it for a bitmap output
-	 *    * It's possible to have proper colour conversion using profileimage().
-	 *    ICC profiles are here: http://www.color.org/srgbprofiles.xalter
-	 *    * It's possible to Gamma-correct an image via gammaImage()
-	 *
-	 * @param string $tmpPath the location of the file to convert
-	 * @param int $maxX
-	 * @param int $maxY
-	 *
-	 * @return \Imagick
-	 */
-	private function getResizedPreview($tmpPath, $maxX, $maxY) {
-		$bp = new Imagick();
-
-		// Layer 0 contains either the bitmap or a flat representation of all vector layers
-		$bp->readImage($tmpPath . '[0]');
-
-		$bp = $this->resize($bp, $maxX, $maxY);
-
-		$bp->setImageFormat('png');
-
-		return $bp;
-	}
-
-	/**
-	 * Returns a resized \Imagick object
-	 *
-	 * If you want to know more on the various methods available to resize an
-	 * image, check out this link : @link https://stackoverflow.com/questions/8517304/what-the-difference-of-sample-resample-scale-resize-adaptive-resize-thumbnail-im
-	 *
-	 * @param \Imagick $bp
-	 * @param int $maxX
-	 * @param int $maxY
-	 *
-	 * @return \Imagick
-	 */
-	private function resize($bp, $maxX, $maxY) {
-		list($previewWidth, $previewHeight) = array_values($bp->getImageGeometry());
-
-		// We only need to resize a preview which doesn't fit in the maximum dimensions
-		if ($previewWidth > $maxX || $previewHeight > $maxY) {
-			// TODO: LANCZOS is the default filter, CATROM could bring similar results faster
-			$bp->resizeImage($maxX, $maxY, imagick::FILTER_LANCZOS, 1, true);
-		}
-
-		return $bp;
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
+
+        $tmpPath = $fileview->toTmpFile($path);
+        if (!$tmpPath) {
+            return false;
+        }
+
+        // Creates \Imagick object from bitmap or vector file
+        try {
+            $bp = $this->getResizedPreview($tmpPath, $maxX, $maxY);
+        } catch (\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => 'Imagick says:',
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+
+        unlink($tmpPath);
+
+        //new bitmap image object
+        $image = new \OC_Image();
+        $image->loadFromData($bp);
+        //check if image object is valid
+        return $image->valid() ? $image : false;
+    }
+
+    /**
+     * Returns a preview of maxX times maxY dimensions in PNG format
+     *
+     *    * The default resolution is already 72dpi, no need to change it for a bitmap output
+     *    * It's possible to have proper colour conversion using profileimage().
+     *    ICC profiles are here: http://www.color.org/srgbprofiles.xalter
+     *    * It's possible to Gamma-correct an image via gammaImage()
+     *
+     * @param string $tmpPath the location of the file to convert
+     * @param int $maxX
+     * @param int $maxY
+     *
+     * @return \Imagick
+     */
+    private function getResizedPreview($tmpPath, $maxX, $maxY) {
+        $bp = new Imagick();
+
+        // Layer 0 contains either the bitmap or a flat representation of all vector layers
+        $bp->readImage($tmpPath . '[0]');
+
+        $bp = $this->resize($bp, $maxX, $maxY);
+
+        $bp->setImageFormat('png');
+
+        return $bp;
+    }
+
+    /**
+     * Returns a resized \Imagick object
+     *
+     * If you want to know more on the various methods available to resize an
+     * image, check out this link : @link https://stackoverflow.com/questions/8517304/what-the-difference-of-sample-resample-scale-resize-adaptive-resize-thumbnail-im
+     *
+     * @param \Imagick $bp
+     * @param int $maxX
+     * @param int $maxY
+     *
+     * @return \Imagick
+     */
+    private function resize($bp, $maxX, $maxY) {
+        list($previewWidth, $previewHeight) = array_values($bp->getImageGeometry());
+
+        // We only need to resize a preview which doesn't fit in the maximum dimensions
+        if ($previewWidth > $maxX || $previewHeight > $maxY) {
+            // TODO: LANCZOS is the default filter, CATROM could bring similar results faster
+            $bp->resizeImage($maxX, $maxY, imagick::FILTER_LANCZOS, 1, true);
+        }
+
+        return $bp;
+    }
 
 }

lib/private/Preview/SVG.php

Indentation +40 added lines, -40 removed lines

@@ -27,50 +27,50 @@
 use OCP\ILogger;
 
 class SVG extends Provider {
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getMimeType() {
-		return '/image\/svg\+xml/';
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function getMimeType() {
+        return '/image\/svg\+xml/';
+    }
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
-		try {
-			$svg = new \Imagick();
-			$svg->setBackgroundColor(new \ImagickPixel('transparent'));
+    /**
+     * {@inheritDoc}
+     */
+    public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
+        try {
+            $svg = new \Imagick();
+            $svg->setBackgroundColor(new \ImagickPixel('transparent'));
 
-			$content = stream_get_contents($fileview->fopen($path, 'r'));
-			if (substr($content, 0, 5) !== '<?xml') {
-				$content = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' . $content;
-			}
+            $content = stream_get_contents($fileview->fopen($path, 'r'));
+            if (substr($content, 0, 5) !== '<?xml') {
+                $content = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' . $content;
+            }
 
-			// Do not parse SVG files with references
-			if (stripos($content, 'xlink:href') !== false) {
-				return false;
-			}
+            // Do not parse SVG files with references
+            if (stripos($content, 'xlink:href') !== false) {
+                return false;
+            }
 
-			$svg->readImageBlob($content);
-			$svg->setImageFormat('png32');
-		} catch (\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
+            $svg->readImageBlob($content);
+            $svg->setImageFormat('png32');
+        } catch (\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
 
-		//new image object
-		$image = new \OC_Image();
-		$image->loadFromData($svg);
-		//check if image object is valid
-		if ($image->valid()) {
-			$image->scaleDownToFit($maxX, $maxY);
+        //new image object
+        $image = new \OC_Image();
+        $image->loadFromData($svg);
+        //check if image object is valid
+        if ($image->valid()) {
+            $image->scaleDownToFit($maxX, $maxY);
 
-			return $image;
-		}
-		return false;
-	}
+            return $image;
+        }
+        return false;
+    }
 }

lib/private/Preview/Office.php

Indentation +60 added lines, -60 removed lines

@@ -28,83 +28,83 @@
 use OCP\ILogger;
 
 abstract class Office extends Provider {
-	private $cmd;
+    private $cmd;
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
-		$this->initCmd();
-		if (is_null($this->cmd)) {
-			return false;
-		}
+    /**
+     * {@inheritDoc}
+     */
+    public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
+        $this->initCmd();
+        if (is_null($this->cmd)) {
+            return false;
+        }
 
-		$absPath = $fileview->toTmpFile($path);
+        $absPath = $fileview->toTmpFile($path);
 
-		$tmpDir = \OC::$server->getTempManager()->getTempBaseDir();
+        $tmpDir = \OC::$server->getTempManager()->getTempBaseDir();
 
-		$defaultParameters = ' -env:UserInstallation=file://' . escapeshellarg($tmpDir . '/owncloud-' . \OC_Util::getInstanceId() . '/') . ' --headless --nologo --nofirststartwizard --invisible --norestore --convert-to pdf --outdir ';
-		$clParameters = \OC::$server->getConfig()->getSystemValue('preview_office_cl_parameters', $defaultParameters);
+        $defaultParameters = ' -env:UserInstallation=file://' . escapeshellarg($tmpDir . '/owncloud-' . \OC_Util::getInstanceId() . '/') . ' --headless --nologo --nofirststartwizard --invisible --norestore --convert-to pdf --outdir ';
+        $clParameters = \OC::$server->getConfig()->getSystemValue('preview_office_cl_parameters', $defaultParameters);
 
-		$exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
+        $exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
 
-		shell_exec($exec);
+        shell_exec($exec);
 
-		//create imagick object from pdf
-		$pdfPreview = null;
-		try {
-			list($dirname, , , $filename) = array_values(pathinfo($absPath));
-			$pdfPreview = $dirname . '/' . $filename . '.pdf';
+        //create imagick object from pdf
+        $pdfPreview = null;
+        try {
+            list($dirname, , , $filename) = array_values(pathinfo($absPath));
+            $pdfPreview = $dirname . '/' . $filename . '.pdf';
 
-			$pdf = new \imagick($pdfPreview . '[0]');
-			$pdf->setImageFormat('jpg');
-		} catch (\Exception $e) {
-			unlink($absPath);
-			unlink($pdfPreview);
-			\OC::$server->getLogger()->logException($e, [
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
+            $pdf = new \imagick($pdfPreview . '[0]');
+            $pdf->setImageFormat('jpg');
+        } catch (\Exception $e) {
+            unlink($absPath);
+            unlink($pdfPreview);
+            \OC::$server->getLogger()->logException($e, [
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
 
-		$image = new \OC_Image();
-		$image->loadFromData($pdf);
+        $image = new \OC_Image();
+        $image->loadFromData($pdf);
 
-		unlink($absPath);
-		unlink($pdfPreview);
+        unlink($absPath);
+        unlink($pdfPreview);
 
-		if ($image->valid()) {
-			$image->scaleDownToFit($maxX, $maxY);
+        if ($image->valid()) {
+            $image->scaleDownToFit($maxX, $maxY);
 
-			return $image;
-		}
-		return false;
+            return $image;
+        }
+        return false;
 
-	}
+    }
 
-	private function initCmd() {
-		$cmd = '';
+    private function initCmd() {
+        $cmd = '';
 
-		$libreOfficePath = \OC::$server->getConfig()->getSystemValue('preview_libreoffice_path', null);
-		if (is_string($libreOfficePath)) {
-			$cmd = $libreOfficePath;
-		}
+        $libreOfficePath = \OC::$server->getConfig()->getSystemValue('preview_libreoffice_path', null);
+        if (is_string($libreOfficePath)) {
+            $cmd = $libreOfficePath;
+        }
 
-		$whichLibreOffice = shell_exec('command -v libreoffice');
-		if ($cmd === '' && !empty($whichLibreOffice)) {
-			$cmd = 'libreoffice';
-		}
+        $whichLibreOffice = shell_exec('command -v libreoffice');
+        if ($cmd === '' && !empty($whichLibreOffice)) {
+            $cmd = 'libreoffice';
+        }
 
-		$whichOpenOffice = shell_exec('command -v openoffice');
-		if ($cmd === '' && !empty($whichOpenOffice)) {
-			$cmd = 'openoffice';
-		}
+        $whichOpenOffice = shell_exec('command -v openoffice');
+        if ($cmd === '' && !empty($whichOpenOffice)) {
+            $cmd = 'openoffice';
+        }
 
-		if ($cmd === '') {
-			$cmd = null;
-		}
+        if ($cmd === '') {
+            $cmd = null;
+        }
 
-		$this->cmd = $cmd;
-	}
+        $this->cmd = $cmd;
+    }
 }

lib/private/legacy/app.php

Indentation +1034 added lines, -1034 removed lines

@@ -64,1038 +64,1038 @@
  * upgrading and removing apps.
  */
 class OC_App {
-	static private $adminForms = [];
-	static private $personalForms = [];
-	static private $appTypes = [];
-	static private $loadedApps = [];
-	static private $altLogin = [];
-	static private $alreadyRegistered = [];
-	const officialApp = 200;
-
-	/**
-	 * clean the appId
-	 *
-	 * @param string $app AppId that needs to be cleaned
-	 * @return string
-	 */
-	public static function cleanAppId(string $app): string {
-		return str_replace(array('\0', '/', '\\', '..'), '', $app);
-	}
-
-	/**
-	 * Check if an app is loaded
-	 *
-	 * @param string $app
-	 * @return bool
-	 */
-	public static function isAppLoaded(string $app): bool {
-		return in_array($app, self::$loadedApps, true);
-	}
-
-	/**
-	 * loads all apps
-	 *
-	 * @param string[] $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 to non-empty array, only apps of those types will be loaded
-	 */
-	public static function loadApps(array $types = []): bool {
-		if (\OC::$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 $app) {
-			if (($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
-	 * @throws Exception
-	 */
-	public static function loadApp(string $app) {
-		self::$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: ' . $app);
-			try {
-				self::requireAppFile($app);
-			} catch (Error $ex) {
-				\OC::$server->getLogger()->logException($ex);
-				if (!\OC::$server->getAppManager()->isShipped($app)) {
-					// Only disable apps which are not shipped
-					\OC::$server->getAppManager()->disableApp($app);
-				}
-			}
-			\OC::$server->getEventLogger()->end('load_app_' . $app);
-		}
-
-		$info = self::getAppInfo($app);
-		if (!empty($info['activity']['filters'])) {
-			foreach ($info['activity']['filters'] as $filter) {
-				\OC::$server->getActivityManager()->registerFilter($filter);
-			}
-		}
-		if (!empty($info['activity']['settings'])) {
-			foreach ($info['activity']['settings'] as $setting) {
-				\OC::$server->getActivityManager()->registerSetting($setting);
-			}
-		}
-		if (!empty($info['activity']['providers'])) {
-			foreach ($info['activity']['providers'] as $provider) {
-				\OC::$server->getActivityManager()->registerProvider($provider);
-			}
-		}
-
-		if (!empty($info['settings']['admin'])) {
-			foreach ($info['settings']['admin'] as $setting) {
-				\OC::$server->getSettingsManager()->registerSetting('admin', $setting);
-			}
-		}
-		if (!empty($info['settings']['admin-section'])) {
-			foreach ($info['settings']['admin-section'] as $section) {
-				\OC::$server->getSettingsManager()->registerSection('admin', $section);
-			}
-		}
-		if (!empty($info['settings']['personal'])) {
-			foreach ($info['settings']['personal'] as $setting) {
-				\OC::$server->getSettingsManager()->registerSetting('personal', $setting);
-			}
-		}
-		if (!empty($info['settings']['personal-section'])) {
-			foreach ($info['settings']['personal-section'] as $section) {
-				\OC::$server->getSettingsManager()->registerSection('personal', $section);
-			}
-		}
-
-		if (!empty($info['collaboration']['plugins'])) {
-			// deal with one or many plugin entries
-			$plugins = isset($info['collaboration']['plugins']['plugin']['@value']) ?
-				[$info['collaboration']['plugins']['plugin']] : $info['collaboration']['plugins']['plugin'];
-			foreach ($plugins as $plugin) {
-				if($plugin['@attributes']['type'] === 'collaborator-search') {
-					$pluginInfo = [
-						'shareType' => $plugin['@attributes']['share-type'],
-						'class' => $plugin['@value'],
-					];
-					\OC::$server->getCollaboratorSearch()->registerPlugin($pluginInfo);
-				} else if ($plugin['@attributes']['type'] === 'autocomplete-sort') {
-					\OC::$server->getAutoCompleteManager()->registerSorter($plugin['@value']);
-				}
-			}
-		}
-	}
-
-	/**
-	 * @internal
-	 * @param string $app
-	 * @param string $path
-	 */
-	public static function registerAutoloading(string $app, string $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::$server->registerNamespace($app, $appNamespace);
-
-		if (file_exists($path . '/composer/autoload.php')) {
-			require_once $path . '/composer/autoload.php';
-		} else {
-			\OC::$composerAutoloader->addPsr4($appNamespace . '\\', $path . '/lib/', true);
-			// Register on legacy autoloader
-			\OC::$loader->addValidRoot($path);
-		}
-
-		// Register Test namespace only when testing
-		if (defined('PHPUNIT_RUN') || defined('CLI_TEST_RUN')) {
-			\OC::$composerAutoloader->addPsr4($appNamespace . '\\Tests\\', $path . '/tests/', true);
-		}
-	}
-
-	/**
-	 * Load app.php from the given app
-	 *
-	 * @param string $app app name
-	 * @throws Error
-	 */
-	private static function requireAppFile(string $app) {
-		// encapsulated here to avoid variable scope conflicts
-		require_once $app . '/appinfo/app.php';
-	}
-
-	/**
-	 * check if an app is of a specific type
-	 *
-	 * @param string $app
-	 * @param array $types
-	 * @return bool
-	 */
-	public static function isType(string $app, array $types): bool {
-		$appTypes = self::getAppTypes($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(string $app): array {
-		//load the cache
-		if (count(self::$appTypes) == 0) {
-			self::$appTypes = \OC::$server->getAppConfig()->getValues(false, 'types');
-		}
-
-		if (isset(self::$appTypes[$app])) {
-			return explode(',', self::$appTypes[$app]);
-		}
-
-		return [];
-	}
-
-	/**
-	 * read app types from info.xml and cache them in the database
-	 */
-	public static function setAppTypes(string $app) {
-		$appManager = \OC::$server->getAppManager();
-		$appData = $appManager->getAppInfo($app);
-		if(!is_array($appData)) {
-			return;
-		}
-
-		if (isset($appData['types'])) {
-			$appTypes = implode(',', $appData['types']);
-		} else {
-			$appTypes = '';
-			$appData['types'] = [];
-		}
-
-		$config = \OC::$server->getConfig();
-		$config->setAppValue($app, 'types', $appTypes);
-
-		if ($appManager->hasProtectedAppType($appData['types'])) {
-			$enabled = $config->getAppValue($app, 'enabled', 'yes');
-			if ($enabled !== 'yes' && $enabled !== 'no') {
-				$config->setAppValue($app, 'enabled', 'yes');
-			}
-		}
-	}
-
-	/**
-	 * 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(bool $forceRefresh = false, bool $all = false): array {
-		if (!\OC::$server->getSystemConfig()->getValue('installed', false)) {
-			return [];
-		}
-		// 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 $app app
-	 * @return bool
-	 * @deprecated 13.0.0 use \OC::$server->getAppManager()->isEnabledForUser($appId)
-	 *
-	 * This function checks whether or not an app is enabled.
-	 */
-	public static function isEnabled(string $app): bool {
-		return \OC::$server->getAppManager()->isEnabledForUser($app);
-	}
-
-	/**
-	 * enables an app
-	 *
-	 * @param string $appId
-	 * @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 function enable(string $appId,
-						   array $groups = []) {
-
-		// Check if app is already downloaded
-		/** @var Installer $installer */
-		$installer = \OC::$server->query(Installer::class);
-		$isDownloaded = $installer->isDownloaded($appId);
-
-		if(!$isDownloaded) {
-			$installer->downloadApp($appId);
-		}
-
-		$installer->installApp($appId);
-
-		$appManager = \OC::$server->getAppManager();
-		if ($groups !== []) {
-			$groupManager = \OC::$server->getGroupManager();
-			$groupsList = [];
-			foreach ($groups as $group) {
-				$groupItem = $groupManager->get($group);
-				if ($groupItem instanceof \OCP\IGroup) {
-					$groupsList[] = $groupManager->get($group);
-				}
-			}
-			$appManager->enableAppForGroups($appId, $groupsList);
-		} else {
-			$appManager->enableApp($appId);
-		}
-	}
-
-	/**
-	 * 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.', ILogger::ERROR);
-		return null;
-	}
-
-
-	/**
-	 * search for an app in all app-directories
-	 *
-	 * @param string $appId
-	 * @return false|string
-	 */
-	public static function findAppInDirectories(string $appId) {
-		$sanitizedAppId = self::cleanAppId($appId);
-		if($sanitizedAppId !== $appId) {
-			return false;
-		}
-		static $app_dir = [];
-
-		if (isset($app_dir[$appId])) {
-			return $app_dir[$appId];
-		}
-
-		$possibleApps = [];
-		foreach (OC::$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 {
-			$versionToLoad = [];
-			foreach ($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(string $appId) {
-		if ($appId === null || trim($appId) === '') {
-			return false;
-		}
-
-		if (($dir = self::findAppInDirectories($appId)) != false) {
-			return $dir['path'] . '/' . $appId;
-		}
-		return 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(string $appId) {
-		if (($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
-	 * @param bool $useCache
-	 * @return string
-	 * @deprecated 14.0.0 use \OC::$server->getAppManager()->getAppVersion()
-	 */
-	public static function getAppVersion(string $appId, bool $useCache = true): string {
-		return \OC::$server->getAppManager()->getAppVersion($appId, $useCache);
-	}
-
-	/**
-	 * get app's version based on it's path
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public static function getAppVersionByPath(string $path): string {
-		$infoFile = $path . '/appinfo/info.xml';
-		$appData = \OC::$server->getAppManager()->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 $lang
-	 * @return array|null
-	 * @note all data is read from info.xml, not just pre-defined fields
-	 * @deprecated 14.0.0 use \OC::$server->getAppManager()->getAppInfo()
-	 */
-	public static function getAppInfo(string $appId, bool $path = false, string $lang = null) {
-		return \OC::$server->getAppManager()->getAppInfo($appId, $path, $lang);
-	}
-
-	/**
-	 * Returns the navigation
-	 *
-	 * @return array
-	 * @deprecated 14.0.0 use \OC::$server->getNavigationManager()->getAll()
-	 *
-	 * 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(): array {
-		return OC::$server->getNavigationManager()->getAll();
-	}
-
-	/**
-	 * Returns the Settings Navigation
-	 *
-	 * @return string[]
-	 * @deprecated 14.0.0 use \OC::$server->getNavigationManager()->getAll('settings')
-	 *
-	 * This function returns an array containing all settings pages added. The
-	 * entries are sorted by the key 'order' ascending.
-	 */
-	public static function getSettingsNavigation(): array {
-		return OC::$server->getNavigationManager()->getAll('settings');
-	}
-
-	/**
-	 * get the id of loaded app
-	 *
-	 * @return string
-	 */
-	public static function getCurrentApp(): string {
-		$request = \OC::$server->getRequest();
-		$script = substr($request->getScriptName(), strlen(OC::$WEBROOT) + 1);
-		$topFolder = substr($script, 0, strpos($script, '/') ?: 0);
-		if (empty($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(string $type): array {
-		$forms = [];
-		switch ($type) {
-			case 'admin':
-				$source = self::$adminForms;
-				break;
-			case 'personal':
-				$source = self::$personalForms;
-				break;
-			default:
-				return [];
-		}
-		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(string $app, string $page) {
-		self::$adminForms[] = $app . '/' . $page . '.php';
-	}
-
-	/**
-	 * register a personal form to be shown
-	 * @param string $app
-	 * @param string $page
-	 */
-	public static function registerPersonal(string $app, string $page) {
-		self::$personalForms[] = $app . '/' . $page . '.php';
-	}
-
-	/**
-	 * @param array $entry
-	 */
-	public static function registerLogIn(array $entry) {
-		self::$altLogin[] = $entry;
-	}
-
-	/**
-	 * @return array
-	 */
-	public static function getAlternativeLogIns(): array {
-		return self::$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(): array {
-
-		$apps = [];
-
-		foreach (OC::$APPSROOTS as $apps_dir) {
-			if (!is_readable($apps_dir['path'])) {
-				\OCP\Util::writeLog('core', 'unable to read app folder : ' . $apps_dir['path'], ILogger::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;
-					}
-				}
-			}
-		}
-
-		$apps = array_unique($apps);
-
-		return $apps;
-	}
-
-	/**
-	 * List all apps, this is used in apps.php
-	 *
-	 * @return array
-	 */
-	public function listAllApps(): array {
-		$installedApps = OC_App::getAllApps();
-
-		$appManager = \OC::$server->getAppManager();
-		//we don't want to show configuration for these
-		$blacklist = $appManager->getAlwaysEnabledApps();
-		$appList = [];
-		$langCode = \OC::$server->getL10N('core')->getLanguageCode();
-		$urlGenerator = \OC::$server->getURLGenerator();
-
-		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 "' . $app . '"', ILogger::ERROR);
-					continue;
-				}
-
-				if (!isset($info['name'])) {
-					\OCP\Util::writeLog('core', 'App id "' . $app . '" has no name in appinfo', ILogger::ERROR);
-					continue;
-				}
-
-				$enabled = \OC::$server->getConfig()->getAppValue($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'] = $active;
-
-				if ($appManager->isShipped($app)) {
-					$info['internal'] = true;
-					$info['level'] = self::officialApp;
-					$info['removable'] = false;
-				} else {
-					$info['internal'] = false;
-					$info['removable'] = true;
-				}
-
-				$appPath = self::getAppPath($app);
-				if($appPath !== false) {
-					$appIcon = $appPath . '/img/' . $app . '.svg';
-					if (file_exists($appIcon)) {
-						$info['preview'] = $urlGenerator->imagePath($app, $app . '.svg');
-						$info['previewAsIcon'] = true;
-					} else {
-						$appIcon = $appPath . '/img/app.svg';
-						if (file_exists($appIcon)) {
-							$info['preview'] = $urlGenerator->imagePath($app, 'app.svg');
-							$info['previewAsIcon'] = true;
-						}
-					}
-				}
-				// fix documentation
-				if (isset($info['documentation']) && is_array($info['documentation'])) {
-					foreach ($info['documentation'] as $key => $url) {
-						// If it is not an absolute URL we assume it is a key
-						// i.e. admin-ldap will get converted to go.php?to=admin-ldap
-						if (stripos($url, 'https://') !== 0 && stripos($url, 'http://') !== 0) {
-							$url = $urlGenerator->linkToDocs($url);
-						}
-
-						$info['documentation'][$key] = $url;
-					}
-				}
-
-				$info['version'] = OC_App::getAppVersion($app);
-				$appList[] = $info;
-			}
-		}
-
-		return $appList;
-	}
-
-	public static function shouldUpgrade(string $app): bool {
-		$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(string $version1, string $version2): string {
-		$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(string $ocVersion, array $appInfo): bool {
-		$requireMin = '';
-		$requireMax = '';
-		if (isset($appInfo['dependencies']['nextcloud']['@attributes']['min-version'])) {
-			$requireMin = $appInfo['dependencies']['nextcloud']['@attributes']['min-version'];
-		} elseif (isset($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']['nextcloud']['@attributes']['max-version'])) {
-			$requireMax = $appInfo['dependencies']['nextcloud']['@attributes']['max-version'];
-		} elseif (isset($appInfo['dependencies']['owncloud']['@attributes']['max-version'])) {
-			$requireMax = $appInfo['dependencies']['owncloud']['@attributes']['max-version'];
-		} else if (isset($appInfo['requiremax'])) {
-			$requireMax = $appInfo['requiremax'];
-		}
-
-		if (!empty($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;
-	}
-
-	/**
-	 * update the database for the app and call the update script
-	 *
-	 * @param string $appId
-	 * @return bool
-	 */
-	public static function updateApp(string $appId): bool {
-		$appPath = self::getAppPath($appId);
-		if($appPath === false) {
-			return false;
-		}
-		self::registerAutoloading($appId, $appPath);
-
-		$appData = self::getAppInfo($appId);
-		self::executeRepairSteps($appId, $appData['repair-steps']['pre-migration']);
-
-		if (file_exists($appPath . '/appinfo/database.xml')) {
-			OC_DB::updateDbFromStructure($appPath . '/appinfo/database.xml');
-		} else {
-			$ms = new MigrationService($appId, \OC::$server->getDatabaseConnection());
-			$ms->migrate();
-		}
-
-		self::executeRepairSteps($appId, $appData['repair-steps']['post-migration']);
-		self::setupLiveMigrations($appId, $appData['repair-steps']['live-migration']);
-		// update appversion in app manager
-		\OC::$server->getAppManager()->getAppVersion($appId, false);
-
-		// run upgrade code
-		if (file_exists($appPath . '/appinfo/update.php')) {
-			self::loadApp($appId);
-			include $appPath . '/appinfo/update.php';
-		}
-		self::setupBackgroundJobs($appData['background-jobs']);
-
-		//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::$server->getConfig()->setAppValue($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(string $appId, array $steps) {
-		if (empty($steps)) {
-			return;
-		}
-		// load the app
-		self::loadApp($appId);
-
-		$dispatcher = OC::$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(string $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(string $appId) {
-		if (\OC::$server->getAppManager()->isEnabledForUser($appId)) { //sanity check
-			if (\OC::$server->getUserSession()->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', ILogger::ERROR);
-				return false;
-			}
-		} else {
-			\OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ' not enabled', ILogger::ERROR);
-			return false;
-		}
-	}
-
-	protected static function findBestL10NOption(array $options, string $lang): string {
-		// only a single option
-		if (isset($options['@value'])) {
-			return $options['@value'];
-		}
-
-		$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, $lang = null): array {
-
-		if ($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'])) {
-			$data['description'] = trim(self::findBestL10NOption($data['description'], $lang));
-		} else if (isset($data['description']) && is_string($data['description'])) {
-			$data['description'] = trim($data['description']);
-		} else  {
-			$data['description'] = '';
-		}
-
-		return $data;
-	}
-
-	/**
-	 * @param \OCP\IConfig $config
-	 * @param \OCP\IL10N $l
-	 * @param array $info
-	 * @throws \Exception
-	 */
-	public static function checkAppDependencies(\OCP\IConfig $config, \OCP\IL10N $l, array $info) {
-		$dependencyAnalyzer = new DependencyAnalyzer(new Platform($config), $l);
-		$missing = $dependencyAnalyzer->analyze($info);
-		if (!empty($missing)) {
-			$missingMsg = implode(PHP_EOL, $missing);
-			throw new \Exception(
-				$l->t('App "%s" cannot be installed because the following dependencies are not fulfilled: %s',
-					[$info['name'], $missingMsg]
-				)
-			);
-		}
-	}
+    static private $adminForms = [];
+    static private $personalForms = [];
+    static private $appTypes = [];
+    static private $loadedApps = [];
+    static private $altLogin = [];
+    static private $alreadyRegistered = [];
+    const officialApp = 200;
+
+    /**
+     * clean the appId
+     *
+     * @param string $app AppId that needs to be cleaned
+     * @return string
+     */
+    public static function cleanAppId(string $app): string {
+        return str_replace(array('\0', '/', '\\', '..'), '', $app);
+    }
+
+    /**
+     * Check if an app is loaded
+     *
+     * @param string $app
+     * @return bool
+     */
+    public static function isAppLoaded(string $app): bool {
+        return in_array($app, self::$loadedApps, true);
+    }
+
+    /**
+     * loads all apps
+     *
+     * @param string[] $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 to non-empty array, only apps of those types will be loaded
+     */
+    public static function loadApps(array $types = []): bool {
+        if (\OC::$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 $app) {
+            if (($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
+     * @throws Exception
+     */
+    public static function loadApp(string $app) {
+        self::$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: ' . $app);
+            try {
+                self::requireAppFile($app);
+            } catch (Error $ex) {
+                \OC::$server->getLogger()->logException($ex);
+                if (!\OC::$server->getAppManager()->isShipped($app)) {
+                    // Only disable apps which are not shipped
+                    \OC::$server->getAppManager()->disableApp($app);
+                }
+            }
+            \OC::$server->getEventLogger()->end('load_app_' . $app);
+        }
+
+        $info = self::getAppInfo($app);
+        if (!empty($info['activity']['filters'])) {
+            foreach ($info['activity']['filters'] as $filter) {
+                \OC::$server->getActivityManager()->registerFilter($filter);
+            }
+        }
+        if (!empty($info['activity']['settings'])) {
+            foreach ($info['activity']['settings'] as $setting) {
+                \OC::$server->getActivityManager()->registerSetting($setting);
+            }
+        }
+        if (!empty($info['activity']['providers'])) {
+            foreach ($info['activity']['providers'] as $provider) {
+                \OC::$server->getActivityManager()->registerProvider($provider);
+            }
+        }
+
+        if (!empty($info['settings']['admin'])) {
+            foreach ($info['settings']['admin'] as $setting) {
+                \OC::$server->getSettingsManager()->registerSetting('admin', $setting);
+            }
+        }
+        if (!empty($info['settings']['admin-section'])) {
+            foreach ($info['settings']['admin-section'] as $section) {
+                \OC::$server->getSettingsManager()->registerSection('admin', $section);
+            }
+        }
+        if (!empty($info['settings']['personal'])) {
+            foreach ($info['settings']['personal'] as $setting) {
+                \OC::$server->getSettingsManager()->registerSetting('personal', $setting);
+            }
+        }
+        if (!empty($info['settings']['personal-section'])) {
+            foreach ($info['settings']['personal-section'] as $section) {
+                \OC::$server->getSettingsManager()->registerSection('personal', $section);
+            }
+        }
+
+        if (!empty($info['collaboration']['plugins'])) {
+            // deal with one or many plugin entries
+            $plugins = isset($info['collaboration']['plugins']['plugin']['@value']) ?
+                [$info['collaboration']['plugins']['plugin']] : $info['collaboration']['plugins']['plugin'];
+            foreach ($plugins as $plugin) {
+                if($plugin['@attributes']['type'] === 'collaborator-search') {
+                    $pluginInfo = [
+                        'shareType' => $plugin['@attributes']['share-type'],
+                        'class' => $plugin['@value'],
+                    ];
+                    \OC::$server->getCollaboratorSearch()->registerPlugin($pluginInfo);
+                } else if ($plugin['@attributes']['type'] === 'autocomplete-sort') {
+                    \OC::$server->getAutoCompleteManager()->registerSorter($plugin['@value']);
+                }
+            }
+        }
+    }
+
+    /**
+     * @internal
+     * @param string $app
+     * @param string $path
+     */
+    public static function registerAutoloading(string $app, string $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::$server->registerNamespace($app, $appNamespace);
+
+        if (file_exists($path . '/composer/autoload.php')) {
+            require_once $path . '/composer/autoload.php';
+        } else {
+            \OC::$composerAutoloader->addPsr4($appNamespace . '\\', $path . '/lib/', true);
+            // Register on legacy autoloader
+            \OC::$loader->addValidRoot($path);
+        }
+
+        // Register Test namespace only when testing
+        if (defined('PHPUNIT_RUN') || defined('CLI_TEST_RUN')) {
+            \OC::$composerAutoloader->addPsr4($appNamespace . '\\Tests\\', $path . '/tests/', true);
+        }
+    }
+
+    /**
+     * Load app.php from the given app
+     *
+     * @param string $app app name
+     * @throws Error
+     */
+    private static function requireAppFile(string $app) {
+        // encapsulated here to avoid variable scope conflicts
+        require_once $app . '/appinfo/app.php';
+    }
+
+    /**
+     * check if an app is of a specific type
+     *
+     * @param string $app
+     * @param array $types
+     * @return bool
+     */
+    public static function isType(string $app, array $types): bool {
+        $appTypes = self::getAppTypes($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(string $app): array {
+        //load the cache
+        if (count(self::$appTypes) == 0) {
+            self::$appTypes = \OC::$server->getAppConfig()->getValues(false, 'types');
+        }
+
+        if (isset(self::$appTypes[$app])) {
+            return explode(',', self::$appTypes[$app]);
+        }
+
+        return [];
+    }
+
+    /**
+     * read app types from info.xml and cache them in the database
+     */
+    public static function setAppTypes(string $app) {
+        $appManager = \OC::$server->getAppManager();
+        $appData = $appManager->getAppInfo($app);
+        if(!is_array($appData)) {
+            return;
+        }
+
+        if (isset($appData['types'])) {
+            $appTypes = implode(',', $appData['types']);
+        } else {
+            $appTypes = '';
+            $appData['types'] = [];
+        }
+
+        $config = \OC::$server->getConfig();
+        $config->setAppValue($app, 'types', $appTypes);
+
+        if ($appManager->hasProtectedAppType($appData['types'])) {
+            $enabled = $config->getAppValue($app, 'enabled', 'yes');
+            if ($enabled !== 'yes' && $enabled !== 'no') {
+                $config->setAppValue($app, 'enabled', 'yes');
+            }
+        }
+    }
+
+    /**
+     * 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(bool $forceRefresh = false, bool $all = false): array {
+        if (!\OC::$server->getSystemConfig()->getValue('installed', false)) {
+            return [];
+        }
+        // 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 $app app
+     * @return bool
+     * @deprecated 13.0.0 use \OC::$server->getAppManager()->isEnabledForUser($appId)
+     *
+     * This function checks whether or not an app is enabled.
+     */
+    public static function isEnabled(string $app): bool {
+        return \OC::$server->getAppManager()->isEnabledForUser($app);
+    }
+
+    /**
+     * enables an app
+     *
+     * @param string $appId
+     * @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 function enable(string $appId,
+                            array $groups = []) {
+
+        // Check if app is already downloaded
+        /** @var Installer $installer */
+        $installer = \OC::$server->query(Installer::class);
+        $isDownloaded = $installer->isDownloaded($appId);
+
+        if(!$isDownloaded) {
+            $installer->downloadApp($appId);
+        }
+
+        $installer->installApp($appId);
+
+        $appManager = \OC::$server->getAppManager();
+        if ($groups !== []) {
+            $groupManager = \OC::$server->getGroupManager();
+            $groupsList = [];
+            foreach ($groups as $group) {
+                $groupItem = $groupManager->get($group);
+                if ($groupItem instanceof \OCP\IGroup) {
+                    $groupsList[] = $groupManager->get($group);
+                }
+            }
+            $appManager->enableAppForGroups($appId, $groupsList);
+        } else {
+            $appManager->enableApp($appId);
+        }
+    }
+
+    /**
+     * 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.', ILogger::ERROR);
+        return null;
+    }
+
+
+    /**
+     * search for an app in all app-directories
+     *
+     * @param string $appId
+     * @return false|string
+     */
+    public static function findAppInDirectories(string $appId) {
+        $sanitizedAppId = self::cleanAppId($appId);
+        if($sanitizedAppId !== $appId) {
+            return false;
+        }
+        static $app_dir = [];
+
+        if (isset($app_dir[$appId])) {
+            return $app_dir[$appId];
+        }
+
+        $possibleApps = [];
+        foreach (OC::$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 {
+            $versionToLoad = [];
+            foreach ($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(string $appId) {
+        if ($appId === null || trim($appId) === '') {
+            return false;
+        }
+
+        if (($dir = self::findAppInDirectories($appId)) != false) {
+            return $dir['path'] . '/' . $appId;
+        }
+        return 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(string $appId) {
+        if (($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
+     * @param bool $useCache
+     * @return string
+     * @deprecated 14.0.0 use \OC::$server->getAppManager()->getAppVersion()
+     */
+    public static function getAppVersion(string $appId, bool $useCache = true): string {
+        return \OC::$server->getAppManager()->getAppVersion($appId, $useCache);
+    }
+
+    /**
+     * get app's version based on it's path
+     *
+     * @param string $path
+     * @return string
+     */
+    public static function getAppVersionByPath(string $path): string {
+        $infoFile = $path . '/appinfo/info.xml';
+        $appData = \OC::$server->getAppManager()->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 $lang
+     * @return array|null
+     * @note all data is read from info.xml, not just pre-defined fields
+     * @deprecated 14.0.0 use \OC::$server->getAppManager()->getAppInfo()
+     */
+    public static function getAppInfo(string $appId, bool $path = false, string $lang = null) {
+        return \OC::$server->getAppManager()->getAppInfo($appId, $path, $lang);
+    }
+
+    /**
+     * Returns the navigation
+     *
+     * @return array
+     * @deprecated 14.0.0 use \OC::$server->getNavigationManager()->getAll()
+     *
+     * 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(): array {
+        return OC::$server->getNavigationManager()->getAll();
+    }
+
+    /**
+     * Returns the Settings Navigation
+     *
+     * @return string[]
+     * @deprecated 14.0.0 use \OC::$server->getNavigationManager()->getAll('settings')
+     *
+     * This function returns an array containing all settings pages added. The
+     * entries are sorted by the key 'order' ascending.
+     */
+    public static function getSettingsNavigation(): array {
+        return OC::$server->getNavigationManager()->getAll('settings');
+    }
+
+    /**
+     * get the id of loaded app
+     *
+     * @return string
+     */
+    public static function getCurrentApp(): string {
+        $request = \OC::$server->getRequest();
+        $script = substr($request->getScriptName(), strlen(OC::$WEBROOT) + 1);
+        $topFolder = substr($script, 0, strpos($script, '/') ?: 0);
+        if (empty($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(string $type): array {
+        $forms = [];
+        switch ($type) {
+            case 'admin':
+                $source = self::$adminForms;
+                break;
+            case 'personal':
+                $source = self::$personalForms;
+                break;
+            default:
+                return [];
+        }
+        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(string $app, string $page) {
+        self::$adminForms[] = $app . '/' . $page . '.php';
+    }
+
+    /**
+     * register a personal form to be shown
+     * @param string $app
+     * @param string $page
+     */
+    public static function registerPersonal(string $app, string $page) {
+        self::$personalForms[] = $app . '/' . $page . '.php';
+    }
+
+    /**
+     * @param array $entry
+     */
+    public static function registerLogIn(array $entry) {
+        self::$altLogin[] = $entry;
+    }
+
+    /**
+     * @return array
+     */
+    public static function getAlternativeLogIns(): array {
+        return self::$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(): array {
+
+        $apps = [];
+
+        foreach (OC::$APPSROOTS as $apps_dir) {
+            if (!is_readable($apps_dir['path'])) {
+                \OCP\Util::writeLog('core', 'unable to read app folder : ' . $apps_dir['path'], ILogger::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;
+                    }
+                }
+            }
+        }
+
+        $apps = array_unique($apps);
+
+        return $apps;
+    }
+
+    /**
+     * List all apps, this is used in apps.php
+     *
+     * @return array
+     */
+    public function listAllApps(): array {
+        $installedApps = OC_App::getAllApps();
+
+        $appManager = \OC::$server->getAppManager();
+        //we don't want to show configuration for these
+        $blacklist = $appManager->getAlwaysEnabledApps();
+        $appList = [];
+        $langCode = \OC::$server->getL10N('core')->getLanguageCode();
+        $urlGenerator = \OC::$server->getURLGenerator();
+
+        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 "' . $app . '"', ILogger::ERROR);
+                    continue;
+                }
+
+                if (!isset($info['name'])) {
+                    \OCP\Util::writeLog('core', 'App id "' . $app . '" has no name in appinfo', ILogger::ERROR);
+                    continue;
+                }
+
+                $enabled = \OC::$server->getConfig()->getAppValue($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'] = $active;
+
+                if ($appManager->isShipped($app)) {
+                    $info['internal'] = true;
+                    $info['level'] = self::officialApp;
+                    $info['removable'] = false;
+                } else {
+                    $info['internal'] = false;
+                    $info['removable'] = true;
+                }
+
+                $appPath = self::getAppPath($app);
+                if($appPath !== false) {
+                    $appIcon = $appPath . '/img/' . $app . '.svg';
+                    if (file_exists($appIcon)) {
+                        $info['preview'] = $urlGenerator->imagePath($app, $app . '.svg');
+                        $info['previewAsIcon'] = true;
+                    } else {
+                        $appIcon = $appPath . '/img/app.svg';
+                        if (file_exists($appIcon)) {
+                            $info['preview'] = $urlGenerator->imagePath($app, 'app.svg');
+                            $info['previewAsIcon'] = true;
+                        }
+                    }
+                }
+                // fix documentation
+                if (isset($info['documentation']) && is_array($info['documentation'])) {
+                    foreach ($info['documentation'] as $key => $url) {
+                        // If it is not an absolute URL we assume it is a key
+                        // i.e. admin-ldap will get converted to go.php?to=admin-ldap
+                        if (stripos($url, 'https://') !== 0 && stripos($url, 'http://') !== 0) {
+                            $url = $urlGenerator->linkToDocs($url);
+                        }
+
+                        $info['documentation'][$key] = $url;
+                    }
+                }
+
+                $info['version'] = OC_App::getAppVersion($app);
+                $appList[] = $info;
+            }
+        }
+
+        return $appList;
+    }
+
+    public static function shouldUpgrade(string $app): bool {
+        $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(string $version1, string $version2): string {
+        $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(string $ocVersion, array $appInfo): bool {
+        $requireMin = '';
+        $requireMax = '';
+        if (isset($appInfo['dependencies']['nextcloud']['@attributes']['min-version'])) {
+            $requireMin = $appInfo['dependencies']['nextcloud']['@attributes']['min-version'];
+        } elseif (isset($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']['nextcloud']['@attributes']['max-version'])) {
+            $requireMax = $appInfo['dependencies']['nextcloud']['@attributes']['max-version'];
+        } elseif (isset($appInfo['dependencies']['owncloud']['@attributes']['max-version'])) {
+            $requireMax = $appInfo['dependencies']['owncloud']['@attributes']['max-version'];
+        } else if (isset($appInfo['requiremax'])) {
+            $requireMax = $appInfo['requiremax'];
+        }
+
+        if (!empty($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;
+    }
+
+    /**
+     * update the database for the app and call the update script
+     *
+     * @param string $appId
+     * @return bool
+     */
+    public static function updateApp(string $appId): bool {
+        $appPath = self::getAppPath($appId);
+        if($appPath === false) {
+            return false;
+        }
+        self::registerAutoloading($appId, $appPath);
+
+        $appData = self::getAppInfo($appId);
+        self::executeRepairSteps($appId, $appData['repair-steps']['pre-migration']);
+
+        if (file_exists($appPath . '/appinfo/database.xml')) {
+            OC_DB::updateDbFromStructure($appPath . '/appinfo/database.xml');
+        } else {
+            $ms = new MigrationService($appId, \OC::$server->getDatabaseConnection());
+            $ms->migrate();
+        }
+
+        self::executeRepairSteps($appId, $appData['repair-steps']['post-migration']);
+        self::setupLiveMigrations($appId, $appData['repair-steps']['live-migration']);
+        // update appversion in app manager
+        \OC::$server->getAppManager()->getAppVersion($appId, false);
+
+        // run upgrade code
+        if (file_exists($appPath . '/appinfo/update.php')) {
+            self::loadApp($appId);
+            include $appPath . '/appinfo/update.php';
+        }
+        self::setupBackgroundJobs($appData['background-jobs']);
+
+        //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::$server->getConfig()->setAppValue($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(string $appId, array $steps) {
+        if (empty($steps)) {
+            return;
+        }
+        // load the app
+        self::loadApp($appId);
+
+        $dispatcher = OC::$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(string $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(string $appId) {
+        if (\OC::$server->getAppManager()->isEnabledForUser($appId)) { //sanity check
+            if (\OC::$server->getUserSession()->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', ILogger::ERROR);
+                return false;
+            }
+        } else {
+            \OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ' not enabled', ILogger::ERROR);
+            return false;
+        }
+    }
+
+    protected static function findBestL10NOption(array $options, string $lang): string {
+        // only a single option
+        if (isset($options['@value'])) {
+            return $options['@value'];
+        }
+
+        $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, $lang = null): array {
+
+        if ($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'])) {
+            $data['description'] = trim(self::findBestL10NOption($data['description'], $lang));
+        } else if (isset($data['description']) && is_string($data['description'])) {
+            $data['description'] = trim($data['description']);
+        } else  {
+            $data['description'] = '';
+        }
+
+        return $data;
+    }
+
+    /**
+     * @param \OCP\IConfig $config
+     * @param \OCP\IL10N $l
+     * @param array $info
+     * @throws \Exception
+     */
+    public static function checkAppDependencies(\OCP\IConfig $config, \OCP\IL10N $l, array $info) {
+        $dependencyAnalyzer = new DependencyAnalyzer(new Platform($config), $l);
+        $missing = $dependencyAnalyzer->analyze($info);
+        if (!empty($missing)) {
+            $missingMsg = implode(PHP_EOL, $missing);
+            throw new \Exception(
+                $l->t('App "%s" cannot be installed because the following dependencies are not fulfilled: %s',
+                    [$info['name'], $missingMsg]
+                )
+            );
+        }
+    }
 }

Spacing +49 added lines, -49 removed lines

@@ -112,9 +112,9 @@ 
 		$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);
 			}
 		}
@@ -140,15 +140,15 @@ 
 	public static function loadApp(string $app) {
 		self::$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: '.$app);
 			try {
 				self::requireAppFile($app);
 			} catch (Error $ex) {
@@ -158,7 +158,7 @@ 
 					\OC::$server->getAppManager()->disableApp($app);
 				}
 			}
-			\OC::$server->getEventLogger()->end('load_app_' . $app);
+			\OC::$server->getEventLogger()->end('load_app_'.$app);
 		}
 
 		$info = self::getAppInfo($app);
@@ -204,7 +204,7 @@ 
 			$plugins = isset($info['collaboration']['plugins']['plugin']['@value']) ?
 				[$info['collaboration']['plugins']['plugin']] : $info['collaboration']['plugins']['plugin'];
 			foreach ($plugins as $plugin) {
-				if($plugin['@attributes']['type'] === 'collaborator-search') {
+				if ($plugin['@attributes']['type'] === 'collaborator-search') {
 					$pluginInfo = [
 						'shareType' => $plugin['@attributes']['share-type'],
 						'class' => $plugin['@value'],
@@ -223,8 +223,8 @@ 
 	 * @param string $path
 	 */
 	public static function registerAutoloading(string $app, string $path) {
-		$key = $app . '-' . $path;
-		if(isset(self::$alreadyRegistered[$key])) {
+		$key = $app.'-'.$path;
+		if (isset(self::$alreadyRegistered[$key])) {
 			return;
 		}
 
@@ -234,17 +234,17 @@ 
 		$appNamespace = \OC\AppFramework\App::buildAppNamespace($app);
 		\OC::$server->registerNamespace($app, $appNamespace);
 
-		if (file_exists($path . '/composer/autoload.php')) {
-			require_once $path . '/composer/autoload.php';
+		if (file_exists($path.'/composer/autoload.php')) {
+			require_once $path.'/composer/autoload.php';
 		} else {
-			\OC::$composerAutoloader->addPsr4($appNamespace . '\\', $path . '/lib/', true);
+			\OC::$composerAutoloader->addPsr4($appNamespace.'\\', $path.'/lib/', true);
 			// Register on legacy autoloader
 			\OC::$loader->addValidRoot($path);
 		}
 
 		// Register Test namespace only when testing
 		if (defined('PHPUNIT_RUN') || defined('CLI_TEST_RUN')) {
-			\OC::$composerAutoloader->addPsr4($appNamespace . '\\Tests\\', $path . '/tests/', true);
+			\OC::$composerAutoloader->addPsr4($appNamespace.'\\Tests\\', $path.'/tests/', true);
 		}
 	}
 
@@ -256,7 +256,7 @@ 
 	 */
 	private static function requireAppFile(string $app) {
 		// encapsulated here to avoid variable scope conflicts
-		require_once $app . '/appinfo/app.php';
+		require_once $app.'/appinfo/app.php';
 	}
 
 	/**
@@ -301,7 +301,7 @@ 
 	public static function setAppTypes(string $app) {
 		$appManager = \OC::$server->getAppManager();
 		$appData = $appManager->getAppInfo($app);
-		if(!is_array($appData)) {
+		if (!is_array($appData)) {
 			return;
 		}
 
@@ -349,8 +349,8 @@ 
 		} 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');
@@ -388,7 +388,7 @@ 
 		$installer = \OC::$server->query(Installer::class);
 		$isDownloaded = $installer->isDownloaded($appId);
 
-		if(!$isDownloaded) {
+		if (!$isDownloaded) {
 			$installer->downloadApp($appId);
 		}
 
@@ -439,7 +439,7 @@ 
 	 */
 	public static function findAppInDirectories(string $appId) {
 		$sanitizedAppId = self::cleanAppId($appId);
-		if($sanitizedAppId !== $appId) {
+		if ($sanitizedAppId !== $appId) {
 			return false;
 		}
 		static $app_dir = [];
@@ -450,7 +450,7 @@ 
 
 		$possibleApps = [];
 		foreach (OC::$APPSROOTS as $dir) {
-			if (file_exists($dir['path'] . '/' . $appId)) {
+			if (file_exists($dir['path'].'/'.$appId)) {
 				$possibleApps[] = $dir;
 			}
 		}
@@ -491,7 +491,7 @@ 
 		}
 
 		if (($dir = self::findAppInDirectories($appId)) != false) {
-			return $dir['path'] . '/' . $appId;
+			return $dir['path'].'/'.$appId;
 		}
 		return false;
 	}
@@ -505,7 +505,7 @@ 
 	 */
 	public static function getAppWebPath(string $appId) {
 		if (($dir = self::findAppInDirectories($appId)) != false) {
-			return OC::$WEBROOT . $dir['url'] . '/' . $appId;
+			return OC::$WEBROOT.$dir['url'].'/'.$appId;
 		}
 		return false;
 	}
@@ -529,7 +529,7 @@ 
 	 * @return string
 	 */
 	public static function getAppVersionByPath(string $path): string {
-		$infoFile = $path . '/appinfo/info.xml';
+		$infoFile = $path.'/appinfo/info.xml';
 		$appData = \OC::$server->getAppManager()->getAppInfo($infoFile, true);
 		return isset($appData['version']) ? $appData['version'] : '';
 	}
@@ -629,7 +629,7 @@ 
 	 * @param string $page
 	 */
 	public static function registerAdmin(string $app, string $page) {
-		self::$adminForms[] = $app . '/' . $page . '.php';
+		self::$adminForms[] = $app.'/'.$page.'.php';
 	}
 
 	/**
@@ -638,7 +638,7 @@ 
 	 * @param string $page
 	 */
 	public static function registerPersonal(string $app, string $page) {
-		self::$personalForms[] = $app . '/' . $page . '.php';
+		self::$personalForms[] = $app.'/'.$page.'.php';
 	}
 
 	/**
@@ -667,7 +667,7 @@ 
 
 		foreach (OC::$APPSROOTS as $apps_dir) {
 			if (!is_readable($apps_dir['path'])) {
-				\OCP\Util::writeLog('core', 'unable to read app folder : ' . $apps_dir['path'], ILogger::WARN);
+				\OCP\Util::writeLog('core', 'unable to read app folder : '.$apps_dir['path'], ILogger::WARN);
 				continue;
 			}
 			$dh = opendir($apps_dir['path']);
@@ -675,7 +675,7 @@ 
 			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;
 					}
@@ -708,12 +708,12 @@ 
 
 				$info = OC_App::getAppInfo($app, false, $langCode);
 				if (!is_array($info)) {
-					\OCP\Util::writeLog('core', 'Could not read app info file for app "' . $app . '"', ILogger::ERROR);
+					\OCP\Util::writeLog('core', 'Could not read app info file for app "'.$app.'"', ILogger::ERROR);
 					continue;
 				}
 
 				if (!isset($info['name'])) {
-					\OCP\Util::writeLog('core', 'App id "' . $app . '" has no name in appinfo', ILogger::ERROR);
+					\OCP\Util::writeLog('core', 'App id "'.$app.'" has no name in appinfo', ILogger::ERROR);
 					continue;
 				}
 
@@ -740,13 +740,13 @@ 
 				}
 
 				$appPath = self::getAppPath($app);
-				if($appPath !== false) {
-					$appIcon = $appPath . '/img/' . $app . '.svg';
+				if ($appPath !== false) {
+					$appIcon = $appPath.'/img/'.$app.'.svg';
 					if (file_exists($appIcon)) {
-						$info['preview'] = $urlGenerator->imagePath($app, $app . '.svg');
+						$info['preview'] = $urlGenerator->imagePath($app, $app.'.svg');
 						$info['previewAsIcon'] = true;
 					} else {
-						$appIcon = $appPath . '/img/app.svg';
+						$appIcon = $appPath.'/img/app.svg';
 						if (file_exists($appIcon)) {
 							$info['preview'] = $urlGenerator->imagePath($app, 'app.svg');
 							$info['previewAsIcon'] = true;
@@ -867,7 +867,7 @@ 
 	public static function getAppVersions() {
 		static $versions;
 
-		if(!$versions) {
+		if (!$versions) {
 			$appConfig = \OC::$server->getAppConfig();
 			$versions = $appConfig->getValues(false, 'installed_version');
 		}
@@ -882,7 +882,7 @@ 
 	 */
 	public static function updateApp(string $appId): bool {
 		$appPath = self::getAppPath($appId);
-		if($appPath === false) {
+		if ($appPath === false) {
 			return false;
 		}
 		self::registerAutoloading($appId, $appPath);
@@ -890,8 +890,8 @@ 
 		$appData = self::getAppInfo($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');
 		} else {
 			$ms = new MigrationService($appId, \OC::$server->getDatabaseConnection());
 			$ms->migrate();
@@ -903,23 +903,23 @@ 
 		\OC::$server->getAppManager()->getAppVersion($appId, false);
 
 		// run upgrade code
-		if (file_exists($appPath . '/appinfo/update.php')) {
+		if (file_exists($appPath.'/appinfo/update.php')) {
 			self::loadApp($appId);
-			include $appPath . '/appinfo/update.php';
+			include $appPath.'/appinfo/update.php';
 		}
 		self::setupBackgroundJobs($appData['background-jobs']);
 
 		//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);
@@ -989,17 +989,17 @@ 
 	public static function getStorage(string $appId) {
 		if (\OC::$server->getAppManager()->isEnabledForUser($appId)) { //sanity check
 			if (\OC::$server->getUserSession()->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 ' . $appId . ', user not logged in', ILogger::ERROR);
+				\OCP\Util::writeLog('core', 'Can\'t get app storage, app '.$appId.', user not logged in', ILogger::ERROR);
 				return false;
 			}
 		} else {
-			\OCP\Util::writeLog('core', 'Can\'t get app storage, app ' . $appId . ' not enabled', ILogger::ERROR);
+			\OCP\Util::writeLog('core', 'Can\'t get app storage, app '.$appId.' not enabled', ILogger::ERROR);
 			return false;
 		}
 	}
@@ -1036,9 +1036,9 @@ 
 
 				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 {
@@ -1073,7 +1073,7 @@ 
 			$data['description'] = trim(self::findBestL10NOption($data['description'], $lang));
 		} else if (isset($data['description']) && is_string($data['description'])) {
 			$data['description'] = trim($data['description']);
-		} else  {
+		} else {
 			$data['description'] = '';
 		}
 

lib/private/legacy/user.php

Indentation +346 added lines, -346 removed lines

@@ -60,350 +60,350 @@
  */
 class OC_User {
 
-	private static $_usedBackends = array();
-
-	private static $_setupedBackends = array();
-
-	// bool, stores if a user want to access a resource anonymously, e.g if they open a public link
-	private static $incognitoMode = false;
-
-	/**
-	 * Adds the backend to the list of used backends
-	 *
-	 * @param string|\OCP\UserInterface $backend default: database The backend to use for user management
-	 * @return bool
-	 *
-	 * Set the User Authentication Module
-	 * @suppress PhanDeprecatedFunction
-	 */
-	public static function useBackend($backend = 'database') {
-		if ($backend instanceof \OCP\UserInterface) {
-			self::$_usedBackends[get_class($backend)] = $backend;
-			\OC::$server->getUserManager()->registerBackend($backend);
-		} else {
-			// You'll never know what happens
-			if (null === $backend OR !is_string($backend)) {
-				$backend = 'database';
-			}
-
-			// Load backend
-			switch ($backend) {
-				case 'database':
-				case 'mysql':
-				case 'sqlite':
-					\OCP\Util::writeLog('core', 'Adding user backend ' . $backend . '.', ILogger::DEBUG);
-					self::$_usedBackends[$backend] = new \OC\User\Database();
-					\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
-					break;
-				case 'dummy':
-					self::$_usedBackends[$backend] = new \Test\Util\User\Dummy();
-					\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
-					break;
-				default:
-					\OCP\Util::writeLog('core', 'Adding default user backend ' . $backend . '.', ILogger::DEBUG);
-					$className = 'OC_USER_' . strtoupper($backend);
-					self::$_usedBackends[$backend] = new $className();
-					\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
-					break;
-			}
-		}
-		return true;
-	}
-
-	/**
-	 * remove all used backends
-	 */
-	public static function clearBackends() {
-		self::$_usedBackends = array();
-		\OC::$server->getUserManager()->clearBackends();
-	}
-
-	/**
-	 * setup the configured backends in config.php
-	 * @suppress PhanDeprecatedFunction
-	 */
-	public static function setupBackends() {
-		OC_App::loadApps(['prelogin']);
-		$backends = \OC::$server->getSystemConfig()->getValue('user_backends', []);
-		if (isset($backends['default']) && !$backends['default']) {
-			// clear default backends
-			self::clearBackends();
-		}
-		foreach ($backends as $i => $config) {
-			if (!is_array($config)) {
-				continue;
-			}
-			$class = $config['class'];
-			$arguments = $config['arguments'];
-			if (class_exists($class)) {
-				if (array_search($i, self::$_setupedBackends) === false) {
-					// make a reflection object
-					$reflectionObj = new ReflectionClass($class);
-
-					// use Reflection to create a new instance, using the $args
-					$backend = $reflectionObj->newInstanceArgs($arguments);
-					self::useBackend($backend);
-					self::$_setupedBackends[] = $i;
-				} else {
-					\OCP\Util::writeLog('core', 'User backend ' . $class . ' already initialized.', ILogger::DEBUG);
-				}
-			} else {
-				\OCP\Util::writeLog('core', 'User backend ' . $class . ' not found.', ILogger::ERROR);
-			}
-		}
-	}
-
-	/**
-	 * Try to login a user, assuming authentication
-	 * has already happened (e.g. via Single Sign On).
-	 *
-	 * Log in a user and regenerate a new session.
-	 *
-	 * @param \OCP\Authentication\IApacheBackend $backend
-	 * @return bool
-	 */
-	public static function loginWithApache(\OCP\Authentication\IApacheBackend $backend) {
-
-		$uid = $backend->getCurrentUserId();
-		$run = true;
-		OC_Hook::emit("OC_User", "pre_login", array("run" => &$run, "uid" => $uid));
-
-		if ($uid) {
-			if (self::getUser() !== $uid) {
-				self::setUserId($uid);
-				$userSession = \OC::$server->getUserSession();
-				$userSession->setLoginName($uid);
-				$request = OC::$server->getRequest();
-				$userSession->createSessionToken($request, $uid, $uid);
-				// setup the filesystem
-				OC_Util::setupFS($uid);
-				// first call the post_login hooks, the login-process needs to be
-				// completed before we can safely create the users folder.
-				// For example encryption needs to initialize the users keys first
-				// before we can create the user folder with the skeleton files
-				OC_Hook::emit("OC_User", "post_login", array("uid" => $uid, 'password' => ''));
-				//trigger creation of user home and /files folder
-				\OC::$server->getUserFolder($uid);
-			}
-			return true;
-		}
-		return false;
-	}
-
-	/**
-	 * Verify with Apache whether user is authenticated.
-	 *
-	 * @return boolean|null
-	 *          true: authenticated
-	 *          false: not authenticated
-	 *          null: not handled / no backend available
-	 */
-	public static function handleApacheAuth() {
-		$backend = self::findFirstActiveUsedBackend();
-		if ($backend) {
-			OC_App::loadApps();
-
-			//setup extra user backends
-			self::setupBackends();
-			\OC::$server->getUserSession()->unsetMagicInCookie();
-
-			return self::loginWithApache($backend);
-		}
-
-		return null;
-	}
-
-
-	/**
-	 * Sets user id for session and triggers emit
-	 *
-	 * @param string $uid
-	 */
-	public static function setUserId($uid) {
-		$userSession = \OC::$server->getUserSession();
-		$userManager = \OC::$server->getUserManager();
-		if ($user = $userManager->get($uid)) {
-			$userSession->setUser($user);
-		} else {
-			\OC::$server->getSession()->set('user_id', $uid);
-		}
-	}
-
-	/**
-	 * Check if the user is logged in, considers also the HTTP basic credentials
-	 *
-	 * @deprecated use \OC::$server->getUserSession()->isLoggedIn()
-	 * @return bool
-	 */
-	public static function isLoggedIn() {
-		return \OC::$server->getUserSession()->isLoggedIn();
-	}
-
-	/**
-	 * set incognito mode, e.g. if a user wants to open a public link
-	 *
-	 * @param bool $status
-	 */
-	public static function setIncognitoMode($status) {
-		self::$incognitoMode = $status;
-	}
-
-	/**
-	 * get incognito mode status
-	 *
-	 * @return bool
-	 */
-	public static function isIncognitoMode() {
-		return self::$incognitoMode;
-	}
-
-	/**
-	 * Returns the current logout URL valid for the currently logged-in user
-	 *
-	 * @param \OCP\IURLGenerator $urlGenerator
-	 * @return string
-	 */
-	public static function getLogoutUrl(\OCP\IURLGenerator $urlGenerator) {
-		$backend = self::findFirstActiveUsedBackend();
-		if ($backend) {
-			return $backend->getLogoutUrl();
-		}
-
-		$logoutUrl = $urlGenerator->linkToRouteAbsolute(
-			'core.login.logout',
-			[
-				'requesttoken' => \OCP\Util::callRegister(),
-			]
-		);
-
-		return $logoutUrl;
-	}
-
-	/**
-	 * Check if the user is an admin user
-	 *
-	 * @param string $uid uid of the admin
-	 * @return bool
-	 */
-	public static function isAdminUser($uid) {
-		$group = \OC::$server->getGroupManager()->get('admin');
-		$user = \OC::$server->getUserManager()->get($uid);
-		if ($group && $user && $group->inGroup($user) && self::$incognitoMode === false) {
-			return true;
-		}
-		return false;
-	}
-
-
-	/**
-	 * get the user id of the user currently logged in.
-	 *
-	 * @return string|bool uid or false
-	 */
-	public static function getUser() {
-		$uid = \OC::$server->getSession() ? \OC::$server->getSession()->get('user_id') : null;
-		if (!is_null($uid) && self::$incognitoMode === false) {
-			return $uid;
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * get the display name of the user currently logged in.
-	 *
-	 * @param string $uid
-	 * @return string|bool uid or false
-	 * @deprecated 8.1.0 fetch \OCP\IUser (has getDisplayName()) by using method
-	 *                   get() of \OCP\IUserManager - \OC::$server->getUserManager()
-	 */
-	public static function getDisplayName($uid = null) {
-		if ($uid) {
-			$user = \OC::$server->getUserManager()->get($uid);
-			if ($user) {
-				return $user->getDisplayName();
-			} else {
-				return $uid;
-			}
-		} else {
-			$user = \OC::$server->getUserSession()->getUser();
-			if ($user) {
-				return $user->getDisplayName();
-			} else {
-				return false;
-			}
-		}
-	}
-
-	/**
-	 * Set password
-	 *
-	 * @param string $uid The username
-	 * @param string $password The new password
-	 * @param string $recoveryPassword for the encryption app to reset encryption keys
-	 * @return bool
-	 *
-	 * Change the password of a user
-	 */
-	public static function setPassword($uid, $password, $recoveryPassword = null) {
-		$user = \OC::$server->getUserManager()->get($uid);
-		if ($user) {
-			return $user->setPassword($password, $recoveryPassword);
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string $uid The username
-	 * @return string
-	 *
-	 * returns the path to the users home directory
-	 * @deprecated Use \OC::$server->getUserManager->getHome()
-	 */
-	public static function getHome($uid) {
-		$user = \OC::$server->getUserManager()->get($uid);
-		if ($user) {
-			return $user->getHome();
-		} else {
-			return \OC::$server->getSystemConfig()->getValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $uid;
-		}
-	}
-
-	/**
-	 * Get a list of all users display name
-	 *
-	 * @param string $search
-	 * @param int $limit
-	 * @param int $offset
-	 * @return array associative array with all display names (value) and corresponding uids (key)
-	 *
-	 * Get a list of all display names and user ids.
-	 * @deprecated Use \OC::$server->getUserManager->searchDisplayName($search, $limit, $offset) instead.
-	 */
-	public static function getDisplayNames($search = '', $limit = null, $offset = null) {
-		$displayNames = array();
-		$users = \OC::$server->getUserManager()->searchDisplayName($search, $limit, $offset);
-		foreach ($users as $user) {
-			$displayNames[$user->getUID()] = $user->getDisplayName();
-		}
-		return $displayNames;
-	}
-
-	/**
-	 * Returns the first active backend from self::$_usedBackends.
-	 *
-	 * @return OCP\Authentication\IApacheBackend|null if no backend active, otherwise OCP\Authentication\IApacheBackend
-	 */
-	private static function findFirstActiveUsedBackend() {
-		foreach (self::$_usedBackends as $backend) {
-			if ($backend instanceof OCP\Authentication\IApacheBackend) {
-				if ($backend->isSessionActive()) {
-					return $backend;
-				}
-			}
-		}
-
-		return null;
-	}
+    private static $_usedBackends = array();
+
+    private static $_setupedBackends = array();
+
+    // bool, stores if a user want to access a resource anonymously, e.g if they open a public link
+    private static $incognitoMode = false;
+
+    /**
+     * Adds the backend to the list of used backends
+     *
+     * @param string|\OCP\UserInterface $backend default: database The backend to use for user management
+     * @return bool
+     *
+     * Set the User Authentication Module
+     * @suppress PhanDeprecatedFunction
+     */
+    public static function useBackend($backend = 'database') {
+        if ($backend instanceof \OCP\UserInterface) {
+            self::$_usedBackends[get_class($backend)] = $backend;
+            \OC::$server->getUserManager()->registerBackend($backend);
+        } else {
+            // You'll never know what happens
+            if (null === $backend OR !is_string($backend)) {
+                $backend = 'database';
+            }
+
+            // Load backend
+            switch ($backend) {
+                case 'database':
+                case 'mysql':
+                case 'sqlite':
+                    \OCP\Util::writeLog('core', 'Adding user backend ' . $backend . '.', ILogger::DEBUG);
+                    self::$_usedBackends[$backend] = new \OC\User\Database();
+                    \OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
+                    break;
+                case 'dummy':
+                    self::$_usedBackends[$backend] = new \Test\Util\User\Dummy();
+                    \OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
+                    break;
+                default:
+                    \OCP\Util::writeLog('core', 'Adding default user backend ' . $backend . '.', ILogger::DEBUG);
+                    $className = 'OC_USER_' . strtoupper($backend);
+                    self::$_usedBackends[$backend] = new $className();
+                    \OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
+                    break;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * remove all used backends
+     */
+    public static function clearBackends() {
+        self::$_usedBackends = array();
+        \OC::$server->getUserManager()->clearBackends();
+    }
+
+    /**
+     * setup the configured backends in config.php
+     * @suppress PhanDeprecatedFunction
+     */
+    public static function setupBackends() {
+        OC_App::loadApps(['prelogin']);
+        $backends = \OC::$server->getSystemConfig()->getValue('user_backends', []);
+        if (isset($backends['default']) && !$backends['default']) {
+            // clear default backends
+            self::clearBackends();
+        }
+        foreach ($backends as $i => $config) {
+            if (!is_array($config)) {
+                continue;
+            }
+            $class = $config['class'];
+            $arguments = $config['arguments'];
+            if (class_exists($class)) {
+                if (array_search($i, self::$_setupedBackends) === false) {
+                    // make a reflection object
+                    $reflectionObj = new ReflectionClass($class);
+
+                    // use Reflection to create a new instance, using the $args
+                    $backend = $reflectionObj->newInstanceArgs($arguments);
+                    self::useBackend($backend);
+                    self::$_setupedBackends[] = $i;
+                } else {
+                    \OCP\Util::writeLog('core', 'User backend ' . $class . ' already initialized.', ILogger::DEBUG);
+                }
+            } else {
+                \OCP\Util::writeLog('core', 'User backend ' . $class . ' not found.', ILogger::ERROR);
+            }
+        }
+    }
+
+    /**
+     * Try to login a user, assuming authentication
+     * has already happened (e.g. via Single Sign On).
+     *
+     * Log in a user and regenerate a new session.
+     *
+     * @param \OCP\Authentication\IApacheBackend $backend
+     * @return bool
+     */
+    public static function loginWithApache(\OCP\Authentication\IApacheBackend $backend) {
+
+        $uid = $backend->getCurrentUserId();
+        $run = true;
+        OC_Hook::emit("OC_User", "pre_login", array("run" => &$run, "uid" => $uid));
+
+        if ($uid) {
+            if (self::getUser() !== $uid) {
+                self::setUserId($uid);
+                $userSession = \OC::$server->getUserSession();
+                $userSession->setLoginName($uid);
+                $request = OC::$server->getRequest();
+                $userSession->createSessionToken($request, $uid, $uid);
+                // setup the filesystem
+                OC_Util::setupFS($uid);
+                // first call the post_login hooks, the login-process needs to be
+                // completed before we can safely create the users folder.
+                // For example encryption needs to initialize the users keys first
+                // before we can create the user folder with the skeleton files
+                OC_Hook::emit("OC_User", "post_login", array("uid" => $uid, 'password' => ''));
+                //trigger creation of user home and /files folder
+                \OC::$server->getUserFolder($uid);
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Verify with Apache whether user is authenticated.
+     *
+     * @return boolean|null
+     *          true: authenticated
+     *          false: not authenticated
+     *          null: not handled / no backend available
+     */
+    public static function handleApacheAuth() {
+        $backend = self::findFirstActiveUsedBackend();
+        if ($backend) {
+            OC_App::loadApps();
+
+            //setup extra user backends
+            self::setupBackends();
+            \OC::$server->getUserSession()->unsetMagicInCookie();
+
+            return self::loginWithApache($backend);
+        }
+
+        return null;
+    }
+
+
+    /**
+     * Sets user id for session and triggers emit
+     *
+     * @param string $uid
+     */
+    public static function setUserId($uid) {
+        $userSession = \OC::$server->getUserSession();
+        $userManager = \OC::$server->getUserManager();
+        if ($user = $userManager->get($uid)) {
+            $userSession->setUser($user);
+        } else {
+            \OC::$server->getSession()->set('user_id', $uid);
+        }
+    }
+
+    /**
+     * Check if the user is logged in, considers also the HTTP basic credentials
+     *
+     * @deprecated use \OC::$server->getUserSession()->isLoggedIn()
+     * @return bool
+     */
+    public static function isLoggedIn() {
+        return \OC::$server->getUserSession()->isLoggedIn();
+    }
+
+    /**
+     * set incognito mode, e.g. if a user wants to open a public link
+     *
+     * @param bool $status
+     */
+    public static function setIncognitoMode($status) {
+        self::$incognitoMode = $status;
+    }
+
+    /**
+     * get incognito mode status
+     *
+     * @return bool
+     */
+    public static function isIncognitoMode() {
+        return self::$incognitoMode;
+    }
+
+    /**
+     * Returns the current logout URL valid for the currently logged-in user
+     *
+     * @param \OCP\IURLGenerator $urlGenerator
+     * @return string
+     */
+    public static function getLogoutUrl(\OCP\IURLGenerator $urlGenerator) {
+        $backend = self::findFirstActiveUsedBackend();
+        if ($backend) {
+            return $backend->getLogoutUrl();
+        }
+
+        $logoutUrl = $urlGenerator->linkToRouteAbsolute(
+            'core.login.logout',
+            [
+                'requesttoken' => \OCP\Util::callRegister(),
+            ]
+        );
+
+        return $logoutUrl;
+    }
+
+    /**
+     * Check if the user is an admin user
+     *
+     * @param string $uid uid of the admin
+     * @return bool
+     */
+    public static function isAdminUser($uid) {
+        $group = \OC::$server->getGroupManager()->get('admin');
+        $user = \OC::$server->getUserManager()->get($uid);
+        if ($group && $user && $group->inGroup($user) && self::$incognitoMode === false) {
+            return true;
+        }
+        return false;
+    }
+
+
+    /**
+     * get the user id of the user currently logged in.
+     *
+     * @return string|bool uid or false
+     */
+    public static function getUser() {
+        $uid = \OC::$server->getSession() ? \OC::$server->getSession()->get('user_id') : null;
+        if (!is_null($uid) && self::$incognitoMode === false) {
+            return $uid;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * get the display name of the user currently logged in.
+     *
+     * @param string $uid
+     * @return string|bool uid or false
+     * @deprecated 8.1.0 fetch \OCP\IUser (has getDisplayName()) by using method
+     *                   get() of \OCP\IUserManager - \OC::$server->getUserManager()
+     */
+    public static function getDisplayName($uid = null) {
+        if ($uid) {
+            $user = \OC::$server->getUserManager()->get($uid);
+            if ($user) {
+                return $user->getDisplayName();
+            } else {
+                return $uid;
+            }
+        } else {
+            $user = \OC::$server->getUserSession()->getUser();
+            if ($user) {
+                return $user->getDisplayName();
+            } else {
+                return false;
+            }
+        }
+    }
+
+    /**
+     * Set password
+     *
+     * @param string $uid The username
+     * @param string $password The new password
+     * @param string $recoveryPassword for the encryption app to reset encryption keys
+     * @return bool
+     *
+     * Change the password of a user
+     */
+    public static function setPassword($uid, $password, $recoveryPassword = null) {
+        $user = \OC::$server->getUserManager()->get($uid);
+        if ($user) {
+            return $user->setPassword($password, $recoveryPassword);
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * @param string $uid The username
+     * @return string
+     *
+     * returns the path to the users home directory
+     * @deprecated Use \OC::$server->getUserManager->getHome()
+     */
+    public static function getHome($uid) {
+        $user = \OC::$server->getUserManager()->get($uid);
+        if ($user) {
+            return $user->getHome();
+        } else {
+            return \OC::$server->getSystemConfig()->getValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $uid;
+        }
+    }
+
+    /**
+     * Get a list of all users display name
+     *
+     * @param string $search
+     * @param int $limit
+     * @param int $offset
+     * @return array associative array with all display names (value) and corresponding uids (key)
+     *
+     * Get a list of all display names and user ids.
+     * @deprecated Use \OC::$server->getUserManager->searchDisplayName($search, $limit, $offset) instead.
+     */
+    public static function getDisplayNames($search = '', $limit = null, $offset = null) {
+        $displayNames = array();
+        $users = \OC::$server->getUserManager()->searchDisplayName($search, $limit, $offset);
+        foreach ($users as $user) {
+            $displayNames[$user->getUID()] = $user->getDisplayName();
+        }
+        return $displayNames;
+    }
+
+    /**
+     * Returns the first active backend from self::$_usedBackends.
+     *
+     * @return OCP\Authentication\IApacheBackend|null if no backend active, otherwise OCP\Authentication\IApacheBackend
+     */
+    private static function findFirstActiveUsedBackend() {
+        foreach (self::$_usedBackends as $backend) {
+            if ($backend instanceof OCP\Authentication\IApacheBackend) {
+                if ($backend->isSessionActive()) {
+                    return $backend;
+                }
+            }
+        }
+
+        return null;
+    }
 }

Spacing +6 added lines, -6 removed lines

@@ -91,7 +91,7 @@ 
 				case 'database':
 				case 'mysql':
 				case 'sqlite':
-					\OCP\Util::writeLog('core', 'Adding user backend ' . $backend . '.', ILogger::DEBUG);
+					\OCP\Util::writeLog('core', 'Adding user backend '.$backend.'.', ILogger::DEBUG);
 					self::$_usedBackends[$backend] = new \OC\User\Database();
 					\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
 					break;
@@ -100,8 +100,8 @@ 
 					\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
 					break;
 				default:
-					\OCP\Util::writeLog('core', 'Adding default user backend ' . $backend . '.', ILogger::DEBUG);
-					$className = 'OC_USER_' . strtoupper($backend);
+					\OCP\Util::writeLog('core', 'Adding default user backend '.$backend.'.', ILogger::DEBUG);
+					$className = 'OC_USER_'.strtoupper($backend);
 					self::$_usedBackends[$backend] = new $className();
 					\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
 					break;
@@ -145,10 +145,10 @@ 
 					self::useBackend($backend);
 					self::$_setupedBackends[] = $i;
 				} else {
-					\OCP\Util::writeLog('core', 'User backend ' . $class . ' already initialized.', ILogger::DEBUG);
+					\OCP\Util::writeLog('core', 'User backend '.$class.' already initialized.', ILogger::DEBUG);
 				}
 			} else {
-				\OCP\Util::writeLog('core', 'User backend ' . $class . ' not found.', ILogger::ERROR);
+				\OCP\Util::writeLog('core', 'User backend '.$class.' not found.', ILogger::ERROR);
 			}
 		}
 	}
@@ -366,7 +366,7 @@ 
 		if ($user) {
 			return $user->getHome();
 		} else {
-			return \OC::$server->getSystemConfig()->getValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $uid;
+			return \OC::$server->getSystemConfig()->getValue('datadirectory', OC::$SERVERROOT.'/data').'/'.$uid;
 		}
 	}
 

lib/private/legacy/db.php

Indentation +193 added lines, -193 removed lines

@@ -36,209 +36,209 @@
  */
 class OC_DB {
 
-	/**
-	 * get MDB2 schema manager
-	 *
-	 * @return \OC\DB\MDB2SchemaManager
-	 */
-	private static function getMDB2SchemaManager() {
-		return new \OC\DB\MDB2SchemaManager(\OC::$server->getDatabaseConnection());
-	}
+    /**
+     * get MDB2 schema manager
+     *
+     * @return \OC\DB\MDB2SchemaManager
+     */
+    private static function getMDB2SchemaManager() {
+        return new \OC\DB\MDB2SchemaManager(\OC::$server->getDatabaseConnection());
+    }
 
-	/**
-	 * Prepare a SQL query
-	 * @param string $query Query string
-	 * @param int|null $limit
-	 * @param int|null $offset
-	 * @param bool|null $isManipulation
-	 * @throws \OC\DatabaseException
-	 * @return OC_DB_StatementWrapper prepared SQL query
-	 *
-	 * SQL query via Doctrine prepare(), needs to be execute()'d!
-	 */
-	static public function prepare( $query , $limit = null, $offset = null, $isManipulation = null) {
-		$connection = \OC::$server->getDatabaseConnection();
+    /**
+     * Prepare a SQL query
+     * @param string $query Query string
+     * @param int|null $limit
+     * @param int|null $offset
+     * @param bool|null $isManipulation
+     * @throws \OC\DatabaseException
+     * @return OC_DB_StatementWrapper prepared SQL query
+     *
+     * SQL query via Doctrine prepare(), needs to be execute()'d!
+     */
+    static public function prepare( $query , $limit = null, $offset = null, $isManipulation = null) {
+        $connection = \OC::$server->getDatabaseConnection();
 
-		if ($isManipulation === null) {
-			//try to guess, so we return the number of rows on manipulations
-			$isManipulation = self::isManipulation($query);
-		}
+        if ($isManipulation === null) {
+            //try to guess, so we return the number of rows on manipulations
+            $isManipulation = self::isManipulation($query);
+        }
 
-		// return the result
-		try {
-			$result =$connection->prepare($query, $limit, $offset);
-		} catch (\Doctrine\DBAL\DBALException $e) {
-			throw new \OC\DatabaseException($e->getMessage());
-		}
-		// differentiate between query and manipulation
-		$result = new OC_DB_StatementWrapper($result, $isManipulation);
-		return $result;
-	}
+        // return the result
+        try {
+            $result =$connection->prepare($query, $limit, $offset);
+        } catch (\Doctrine\DBAL\DBALException $e) {
+            throw new \OC\DatabaseException($e->getMessage());
+        }
+        // differentiate between query and manipulation
+        $result = new OC_DB_StatementWrapper($result, $isManipulation);
+        return $result;
+    }
 
-	/**
-	 * tries to guess the type of statement based on the first 10 characters
-	 * the current check allows some whitespace but does not work with IF EXISTS or other more complex statements
-	 *
-	 * @param string $sql
-	 * @return bool
-	 */
-	static public function isManipulation( $sql ) {
-		$selectOccurrence = stripos($sql, 'SELECT');
-		if ($selectOccurrence !== false && $selectOccurrence < 10) {
-			return false;
-		}
-		$insertOccurrence = stripos($sql, 'INSERT');
-		if ($insertOccurrence !== false && $insertOccurrence < 10) {
-			return true;
-		}
-		$updateOccurrence = stripos($sql, 'UPDATE');
-		if ($updateOccurrence !== false && $updateOccurrence < 10) {
-			return true;
-		}
-		$deleteOccurrence = stripos($sql, 'DELETE');
-		if ($deleteOccurrence !== false && $deleteOccurrence < 10) {
-			return true;
-		}
-		return false;
-	}
+    /**
+     * tries to guess the type of statement based on the first 10 characters
+     * the current check allows some whitespace but does not work with IF EXISTS or other more complex statements
+     *
+     * @param string $sql
+     * @return bool
+     */
+    static public function isManipulation( $sql ) {
+        $selectOccurrence = stripos($sql, 'SELECT');
+        if ($selectOccurrence !== false && $selectOccurrence < 10) {
+            return false;
+        }
+        $insertOccurrence = stripos($sql, 'INSERT');
+        if ($insertOccurrence !== false && $insertOccurrence < 10) {
+            return true;
+        }
+        $updateOccurrence = stripos($sql, 'UPDATE');
+        if ($updateOccurrence !== false && $updateOccurrence < 10) {
+            return true;
+        }
+        $deleteOccurrence = stripos($sql, 'DELETE');
+        if ($deleteOccurrence !== false && $deleteOccurrence < 10) {
+            return true;
+        }
+        return false;
+    }
 
-	/**
-	 * execute a prepared statement, on error write log and throw exception
-	 * @param mixed $stmt OC_DB_StatementWrapper,
-	 *					  an array with 'sql' and optionally 'limit' and 'offset' keys
-	 *					.. or a simple sql query string
-	 * @param array $parameters
-	 * @return OC_DB_StatementWrapper
-	 * @throws \OC\DatabaseException
-	 */
-	static public function executeAudited( $stmt, array $parameters = []) {
-		if (is_string($stmt)) {
-			// convert to an array with 'sql'
-			if (stripos($stmt, 'LIMIT') !== false) { //OFFSET requires LIMIT, so we only need to check for LIMIT
-				// TODO try to convert LIMIT OFFSET notation to parameters
-				$message = 'LIMIT and OFFSET are forbidden for portability reasons,'
-						 . ' pass an array with \'limit\' and \'offset\' instead';
-				throw new \OC\DatabaseException($message);
-			}
-			$stmt = array('sql' => $stmt, 'limit' => null, 'offset' => null);
-		}
-		if (is_array($stmt)) {
-			// convert to prepared statement
-			if ( ! array_key_exists('sql', $stmt) ) {
-				$message = 'statement array must at least contain key \'sql\'';
-				throw new \OC\DatabaseException($message);
-			}
-			if ( ! array_key_exists('limit', $stmt) ) {
-				$stmt['limit'] = null;
-			}
-			if ( ! array_key_exists('limit', $stmt) ) {
-				$stmt['offset'] = null;
-			}
-			$stmt = self::prepare($stmt['sql'], $stmt['limit'], $stmt['offset']);
-		}
-		self::raiseExceptionOnError($stmt, 'Could not prepare statement');
-		if ($stmt instanceof OC_DB_StatementWrapper) {
-			$result = $stmt->execute($parameters);
-			self::raiseExceptionOnError($result, 'Could not execute statement');
-		} else {
-			if (is_object($stmt)) {
-				$message = 'Expected a prepared statement or array got ' . get_class($stmt);
-			} else {
-				$message = 'Expected a prepared statement or array got ' . gettype($stmt);
-			}
-			throw new \OC\DatabaseException($message);
-		}
-		return $result;
-	}
+    /**
+     * execute a prepared statement, on error write log and throw exception
+     * @param mixed $stmt OC_DB_StatementWrapper,
+     *					  an array with 'sql' and optionally 'limit' and 'offset' keys
+     *					.. or a simple sql query string
+     * @param array $parameters
+     * @return OC_DB_StatementWrapper
+     * @throws \OC\DatabaseException
+     */
+    static public function executeAudited( $stmt, array $parameters = []) {
+        if (is_string($stmt)) {
+            // convert to an array with 'sql'
+            if (stripos($stmt, 'LIMIT') !== false) { //OFFSET requires LIMIT, so we only need to check for LIMIT
+                // TODO try to convert LIMIT OFFSET notation to parameters
+                $message = 'LIMIT and OFFSET are forbidden for portability reasons,'
+                            . ' pass an array with \'limit\' and \'offset\' instead';
+                throw new \OC\DatabaseException($message);
+            }
+            $stmt = array('sql' => $stmt, 'limit' => null, 'offset' => null);
+        }
+        if (is_array($stmt)) {
+            // convert to prepared statement
+            if ( ! array_key_exists('sql', $stmt) ) {
+                $message = 'statement array must at least contain key \'sql\'';
+                throw new \OC\DatabaseException($message);
+            }
+            if ( ! array_key_exists('limit', $stmt) ) {
+                $stmt['limit'] = null;
+            }
+            if ( ! array_key_exists('limit', $stmt) ) {
+                $stmt['offset'] = null;
+            }
+            $stmt = self::prepare($stmt['sql'], $stmt['limit'], $stmt['offset']);
+        }
+        self::raiseExceptionOnError($stmt, 'Could not prepare statement');
+        if ($stmt instanceof OC_DB_StatementWrapper) {
+            $result = $stmt->execute($parameters);
+            self::raiseExceptionOnError($result, 'Could not execute statement');
+        } else {
+            if (is_object($stmt)) {
+                $message = 'Expected a prepared statement or array got ' . get_class($stmt);
+            } else {
+                $message = 'Expected a prepared statement or array got ' . gettype($stmt);
+            }
+            throw new \OC\DatabaseException($message);
+        }
+        return $result;
+    }
 
-	/**
-	 * saves database schema to xml file
-	 * @param string $file name of file
-	 * @return bool
-	 *
-	 * TODO: write more documentation
-	 */
-	public static function getDbStructure($file) {
-		$schemaManager = self::getMDB2SchemaManager();
-		return $schemaManager->getDbStructure($file);
-	}
+    /**
+     * saves database schema to xml file
+     * @param string $file name of file
+     * @return bool
+     *
+     * TODO: write more documentation
+     */
+    public static function getDbStructure($file) {
+        $schemaManager = self::getMDB2SchemaManager();
+        return $schemaManager->getDbStructure($file);
+    }
 
-	/**
-	 * Creates tables from XML file
-	 * @param string $file file to read structure from
-	 * @return bool
-	 *
-	 * TODO: write more documentation
-	 */
-	public static function createDbFromStructure( $file ) {
-		$schemaManager = self::getMDB2SchemaManager();
-		return $schemaManager->createDbFromStructure($file);
-	}
+    /**
+     * Creates tables from XML file
+     * @param string $file file to read structure from
+     * @return bool
+     *
+     * TODO: write more documentation
+     */
+    public static function createDbFromStructure( $file ) {
+        $schemaManager = self::getMDB2SchemaManager();
+        return $schemaManager->createDbFromStructure($file);
+    }
 
-	/**
-	 * update the database schema
-	 * @param string $file file to read structure from
-	 * @throws Exception
-	 * @return string|boolean
-	 * @suppress PhanDeprecatedFunction
-	 */
-	public static function updateDbFromStructure($file) {
-		$schemaManager = self::getMDB2SchemaManager();
-		try {
-			$result = $schemaManager->updateDbFromStructure($file);
-		} catch (Exception $e) {
-			\OCP\Util::writeLog('core', 'Failed to update database structure ('.$e.')', ILogger::FATAL);
-			throw $e;
-		}
-		return $result;
-	}
+    /**
+     * update the database schema
+     * @param string $file file to read structure from
+     * @throws Exception
+     * @return string|boolean
+     * @suppress PhanDeprecatedFunction
+     */
+    public static function updateDbFromStructure($file) {
+        $schemaManager = self::getMDB2SchemaManager();
+        try {
+            $result = $schemaManager->updateDbFromStructure($file);
+        } catch (Exception $e) {
+            \OCP\Util::writeLog('core', 'Failed to update database structure ('.$e.')', ILogger::FATAL);
+            throw $e;
+        }
+        return $result;
+    }
 
-	/**
-	 * remove all tables defined in a database structure xml file
-	 * @param string $file the xml file describing the tables
-	 */
-	public static function removeDBStructure($file) {
-		$schemaManager = self::getMDB2SchemaManager();
-		$schemaManager->removeDBStructure($file);
-	}
+    /**
+     * remove all tables defined in a database structure xml file
+     * @param string $file the xml file describing the tables
+     */
+    public static function removeDBStructure($file) {
+        $schemaManager = self::getMDB2SchemaManager();
+        $schemaManager->removeDBStructure($file);
+    }
 
-	/**
-	 * check if a result is an error and throws an exception, works with \Doctrine\DBAL\DBALException
-	 * @param mixed $result
-	 * @param string $message
-	 * @return void
-	 * @throws \OC\DatabaseException
-	 */
-	public static function raiseExceptionOnError($result, $message = null) {
-		if($result === false) {
-			if ($message === null) {
-				$message = self::getErrorMessage();
-			} else {
-				$message .= ', Root cause:' . self::getErrorMessage();
-			}
-			throw new \OC\DatabaseException($message);
-		}
-	}
+    /**
+     * check if a result is an error and throws an exception, works with \Doctrine\DBAL\DBALException
+     * @param mixed $result
+     * @param string $message
+     * @return void
+     * @throws \OC\DatabaseException
+     */
+    public static function raiseExceptionOnError($result, $message = null) {
+        if($result === false) {
+            if ($message === null) {
+                $message = self::getErrorMessage();
+            } else {
+                $message .= ', Root cause:' . self::getErrorMessage();
+            }
+            throw new \OC\DatabaseException($message);
+        }
+    }
 
-	/**
-	 * returns the error code and message as a string for logging
-	 * works with DoctrineException
-	 * @return string
-	 */
-	public static function getErrorMessage() {
-		$connection = \OC::$server->getDatabaseConnection();
-		return $connection->getError();
-	}
+    /**
+     * returns the error code and message as a string for logging
+     * works with DoctrineException
+     * @return string
+     */
+    public static function getErrorMessage() {
+        $connection = \OC::$server->getDatabaseConnection();
+        return $connection->getError();
+    }
 
-	/**
-	 * Checks if a table exists in the database - the database prefix will be prepended
-	 *
-	 * @param string $table
-	 * @return bool
-	 * @throws \OC\DatabaseException
-	 */
-	public static function tableExists($table) {
-		$connection = \OC::$server->getDatabaseConnection();
-		return $connection->tableExists($table);
-	}
+    /**
+     * Checks if a table exists in the database - the database prefix will be prepended
+     *
+     * @param string $table
+     * @return bool
+     * @throws \OC\DatabaseException
+     */
+    public static function tableExists($table) {
+        $connection = \OC::$server->getDatabaseConnection();
+        return $connection->tableExists($table);
+    }
 }

lib/private/legacy/files.php

Indentation +430 added lines, -430 removed lines

@@ -49,438 +49,438 @@
  *
  */
 class OC_Files {
-	const FILE = 1;
-	const ZIP_FILES = 2;
-	const ZIP_DIR = 3;
-
-	const UPLOAD_MIN_LIMIT_BYTES = 1048576; // 1 MiB
-
-
-	private static $multipartBoundary = '';
-
-	/**
-	 * @return string
-	 */
-	private static function getBoundary() {
-		if (empty(self::$multipartBoundary)) {
-			self::$multipartBoundary = md5(mt_rand());
-		}
-		return self::$multipartBoundary;
-	}
-
-	/**
-	 * @param string $filename
-	 * @param string $name
-	 * @param array $rangeArray ('from'=>int,'to'=>int), ...
-	 */
-	private static function sendHeaders($filename, $name, array $rangeArray) {
-		OC_Response::setContentDispositionHeader($name, 'attachment');
-		header('Content-Transfer-Encoding: binary', true);
-		header('Pragma: public');// enable caching in IE
-		header('Expires: 0');
-		header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
-		$fileSize = \OC\Files\Filesystem::filesize($filename);
-		$type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
-		if ($fileSize > -1) {
-			if (!empty($rangeArray)) {
-			    header('HTTP/1.1 206 Partial Content', true);
-			    header('Accept-Ranges: bytes', true);
-			    if (count($rangeArray) > 1) {
-				$type = 'multipart/byteranges; boundary='.self::getBoundary();
-				// no Content-Length header here
-			    }
-			    else {
-				header(sprintf('Content-Range: bytes %d-%d/%d', $rangeArray[0]['from'], $rangeArray[0]['to'], $fileSize), true);
-				OC_Response::setContentLengthHeader($rangeArray[0]['to'] - $rangeArray[0]['from'] + 1);
-			    }
-			}
-			else {
-			    OC_Response::setContentLengthHeader($fileSize);
-			}
-		}
-		header('Content-Type: '.$type, true);
-	}
-
-	/**
-	 * return the content of a file or return a zip file containing multiple files
-	 *
-	 * @param string $dir
-	 * @param string $files ; separated list of files to download
-	 * @param array $params ; 'head' boolean to only send header of the request ; 'range' http range header
-	 */
-	public static function get($dir, $files, $params = null) {
-
-		$view = \OC\Files\Filesystem::getView();
-		$getType = self::FILE;
-		$filename = $dir;
-		try {
-
-			if (is_array($files) && count($files) === 1) {
-				$files = $files[0];
-			}
-
-			if (!is_array($files)) {
-				$filename = $dir . '/' . $files;
-				if (!$view->is_dir($filename)) {
-					self::getSingleFile($view, $dir, $files, is_null($params) ? array() : $params);
-					return;
-				}
-			}
-
-			$name = 'download';
-			if (is_array($files)) {
-				$getType = self::ZIP_FILES;
-				$basename = basename($dir);
-				if ($basename) {
-					$name = $basename;
-				}
-
-				$filename = $dir . '/' . $name;
-			} else {
-				$filename = $dir . '/' . $files;
-				$getType = self::ZIP_DIR;
-				// downloading root ?
-				if ($files !== '') {
-					$name = $files;
-				}
-			}
-
-			self::lockFiles($view, $dir, $files);
-
-			/* Calculate filesize and number of files */
-			if ($getType === self::ZIP_FILES) {
-				$fileInfos = array();
-				$fileSize = 0;
-				foreach ($files as $file) {
-					$fileInfo = \OC\Files\Filesystem::getFileInfo($dir . '/' . $file);
-					$fileSize += $fileInfo->getSize();
-					$fileInfos[] = $fileInfo;
-				}
-				$numberOfFiles = self::getNumberOfFiles($fileInfos);
-			} elseif ($getType === self::ZIP_DIR) {
-				$fileInfo = \OC\Files\Filesystem::getFileInfo($dir . '/' . $files);
-				$fileSize = $fileInfo->getSize();
-				$numberOfFiles = self::getNumberOfFiles(array($fileInfo));
-			}
-
-			$streamer = new Streamer(\OC::$server->getRequest(), $fileSize, $numberOfFiles);
-			OC_Util::obEnd();
-
-			$streamer->sendHeaders($name);
-			$executionTime = (int)OC::$server->getIniWrapper()->getNumeric('max_execution_time');
-			if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
-				@set_time_limit(0);
-			}
-			ignore_user_abort(true);
-
-			if ($getType === self::ZIP_FILES) {
-				foreach ($files as $file) {
-					$file = $dir . '/' . $file;
-					if (\OC\Files\Filesystem::is_file($file)) {
-						$fileSize = \OC\Files\Filesystem::filesize($file);
-						$fileTime = \OC\Files\Filesystem::filemtime($file);
-						$fh = \OC\Files\Filesystem::fopen($file, 'r');
-						$streamer->addFileFromStream($fh, basename($file), $fileSize, $fileTime);
-						fclose($fh);
-					} elseif (\OC\Files\Filesystem::is_dir($file)) {
-						$streamer->addDirRecursive($file);
-					}
-				}
-			} elseif ($getType === self::ZIP_DIR) {
-				$file = $dir . '/' . $files;
-				$streamer->addDirRecursive($file);
-			}
-			$streamer->finalize();
-			set_time_limit($executionTime);
-			self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
-		} catch (\OCP\Lock\LockedException $ex) {
-			self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
-			OC::$server->getLogger()->logException($ex);
-			$l = \OC::$server->getL10N('core');
-			$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
-			\OC_Template::printErrorPage($l->t('File is currently busy, please try again later'), $hint);
-		} catch (\OCP\Files\ForbiddenException $ex) {
-			self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
-			OC::$server->getLogger()->logException($ex);
-			$l = \OC::$server->getL10N('core');
-			\OC_Template::printErrorPage($l->t('Can\'t read file'), $ex->getMessage());
-		} catch (\Exception $ex) {
-			self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
-			OC::$server->getLogger()->logException($ex);
-			$l = \OC::$server->getL10N('core');
-			$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
-			\OC_Template::printErrorPage($l->t('Can\'t read file'), $hint);
-		}
-	}
-
-	/**
-	 * @param string $rangeHeaderPos
-	 * @param int $fileSize
-	 * @return array $rangeArray ('from'=>int,'to'=>int), ...
-	 */
-	private static function parseHttpRangeHeader($rangeHeaderPos, $fileSize) {
-		$rArray=explode(',', $rangeHeaderPos);
-		$minOffset = 0;
-		$ind = 0;
-
-		$rangeArray = array();
-
-		foreach ($rArray as $value) {
-			$ranges = explode('-', $value);
-			if (is_numeric($ranges[0])) {
-				if ($ranges[0] < $minOffset) { // case: bytes=500-700,601-999
-					$ranges[0] = $minOffset;
-				}
-				if ($ind > 0 && $rangeArray[$ind-1]['to']+1 == $ranges[0]) { // case: bytes=500-600,601-999
-					$ind--;
-					$ranges[0] = $rangeArray[$ind]['from'];
-				}
-			}
-
-			if (is_numeric($ranges[0]) && is_numeric($ranges[1]) && $ranges[0] < $fileSize && $ranges[0] <= $ranges[1]) {
-				// case: x-x
-				if ($ranges[1] >= $fileSize) {
-					$ranges[1] = $fileSize-1;
-				}
-				$rangeArray[$ind++] = array( 'from' => $ranges[0], 'to' => $ranges[1], 'size' => $fileSize );
-				$minOffset = $ranges[1] + 1;
-				if ($minOffset >= $fileSize) {
-					break;
-				}
-			}
-			elseif (is_numeric($ranges[0]) && $ranges[0] < $fileSize) {
-				// case: x-
-				$rangeArray[$ind++] = array( 'from' => $ranges[0], 'to' => $fileSize-1, 'size' => $fileSize );
-				break;
-			}
-			elseif (is_numeric($ranges[1])) {
-				// case: -x
-				if ($ranges[1] > $fileSize) {
-					$ranges[1] = $fileSize;
-				}
-				$rangeArray[$ind++] = array( 'from' => $fileSize-$ranges[1], 'to' => $fileSize-1, 'size' => $fileSize );
-				break;
-			}
-		}
-		return $rangeArray;
-	}
-
-	/**
-	 * @param View $view
-	 * @param string $name
-	 * @param string $dir
-	 * @param array $params ; 'head' boolean to only send header of the request ; 'range' http range header
-	 */
-	private static function getSingleFile($view, $dir, $name, $params) {
-		$filename = $dir . '/' . $name;
-		OC_Util::obEnd();
-		$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
+    const FILE = 1;
+    const ZIP_FILES = 2;
+    const ZIP_DIR = 3;
+
+    const UPLOAD_MIN_LIMIT_BYTES = 1048576; // 1 MiB
+
+
+    private static $multipartBoundary = '';
+
+    /**
+     * @return string
+     */
+    private static function getBoundary() {
+        if (empty(self::$multipartBoundary)) {
+            self::$multipartBoundary = md5(mt_rand());
+        }
+        return self::$multipartBoundary;
+    }
+
+    /**
+     * @param string $filename
+     * @param string $name
+     * @param array $rangeArray ('from'=>int,'to'=>int), ...
+     */
+    private static function sendHeaders($filename, $name, array $rangeArray) {
+        OC_Response::setContentDispositionHeader($name, 'attachment');
+        header('Content-Transfer-Encoding: binary', true);
+        header('Pragma: public');// enable caching in IE
+        header('Expires: 0');
+        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
+        $fileSize = \OC\Files\Filesystem::filesize($filename);
+        $type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
+        if ($fileSize > -1) {
+            if (!empty($rangeArray)) {
+                header('HTTP/1.1 206 Partial Content', true);
+                header('Accept-Ranges: bytes', true);
+                if (count($rangeArray) > 1) {
+                $type = 'multipart/byteranges; boundary='.self::getBoundary();
+                // no Content-Length header here
+                }
+                else {
+                header(sprintf('Content-Range: bytes %d-%d/%d', $rangeArray[0]['from'], $rangeArray[0]['to'], $fileSize), true);
+                OC_Response::setContentLengthHeader($rangeArray[0]['to'] - $rangeArray[0]['from'] + 1);
+                }
+            }
+            else {
+                OC_Response::setContentLengthHeader($fileSize);
+            }
+        }
+        header('Content-Type: '.$type, true);
+    }
+
+    /**
+     * return the content of a file or return a zip file containing multiple files
+     *
+     * @param string $dir
+     * @param string $files ; separated list of files to download
+     * @param array $params ; 'head' boolean to only send header of the request ; 'range' http range header
+     */
+    public static function get($dir, $files, $params = null) {
+
+        $view = \OC\Files\Filesystem::getView();
+        $getType = self::FILE;
+        $filename = $dir;
+        try {
+
+            if (is_array($files) && count($files) === 1) {
+                $files = $files[0];
+            }
+
+            if (!is_array($files)) {
+                $filename = $dir . '/' . $files;
+                if (!$view->is_dir($filename)) {
+                    self::getSingleFile($view, $dir, $files, is_null($params) ? array() : $params);
+                    return;
+                }
+            }
+
+            $name = 'download';
+            if (is_array($files)) {
+                $getType = self::ZIP_FILES;
+                $basename = basename($dir);
+                if ($basename) {
+                    $name = $basename;
+                }
+
+                $filename = $dir . '/' . $name;
+            } else {
+                $filename = $dir . '/' . $files;
+                $getType = self::ZIP_DIR;
+                // downloading root ?
+                if ($files !== '') {
+                    $name = $files;
+                }
+            }
+
+            self::lockFiles($view, $dir, $files);
+
+            /* Calculate filesize and number of files */
+            if ($getType === self::ZIP_FILES) {
+                $fileInfos = array();
+                $fileSize = 0;
+                foreach ($files as $file) {
+                    $fileInfo = \OC\Files\Filesystem::getFileInfo($dir . '/' . $file);
+                    $fileSize += $fileInfo->getSize();
+                    $fileInfos[] = $fileInfo;
+                }
+                $numberOfFiles = self::getNumberOfFiles($fileInfos);
+            } elseif ($getType === self::ZIP_DIR) {
+                $fileInfo = \OC\Files\Filesystem::getFileInfo($dir . '/' . $files);
+                $fileSize = $fileInfo->getSize();
+                $numberOfFiles = self::getNumberOfFiles(array($fileInfo));
+            }
+
+            $streamer = new Streamer(\OC::$server->getRequest(), $fileSize, $numberOfFiles);
+            OC_Util::obEnd();
+
+            $streamer->sendHeaders($name);
+            $executionTime = (int)OC::$server->getIniWrapper()->getNumeric('max_execution_time');
+            if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
+                @set_time_limit(0);
+            }
+            ignore_user_abort(true);
+
+            if ($getType === self::ZIP_FILES) {
+                foreach ($files as $file) {
+                    $file = $dir . '/' . $file;
+                    if (\OC\Files\Filesystem::is_file($file)) {
+                        $fileSize = \OC\Files\Filesystem::filesize($file);
+                        $fileTime = \OC\Files\Filesystem::filemtime($file);
+                        $fh = \OC\Files\Filesystem::fopen($file, 'r');
+                        $streamer->addFileFromStream($fh, basename($file), $fileSize, $fileTime);
+                        fclose($fh);
+                    } elseif (\OC\Files\Filesystem::is_dir($file)) {
+                        $streamer->addDirRecursive($file);
+                    }
+                }
+            } elseif ($getType === self::ZIP_DIR) {
+                $file = $dir . '/' . $files;
+                $streamer->addDirRecursive($file);
+            }
+            $streamer->finalize();
+            set_time_limit($executionTime);
+            self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
+        } catch (\OCP\Lock\LockedException $ex) {
+            self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
+            OC::$server->getLogger()->logException($ex);
+            $l = \OC::$server->getL10N('core');
+            $hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
+            \OC_Template::printErrorPage($l->t('File is currently busy, please try again later'), $hint);
+        } catch (\OCP\Files\ForbiddenException $ex) {
+            self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
+            OC::$server->getLogger()->logException($ex);
+            $l = \OC::$server->getL10N('core');
+            \OC_Template::printErrorPage($l->t('Can\'t read file'), $ex->getMessage());
+        } catch (\Exception $ex) {
+            self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
+            OC::$server->getLogger()->logException($ex);
+            $l = \OC::$server->getL10N('core');
+            $hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
+            \OC_Template::printErrorPage($l->t('Can\'t read file'), $hint);
+        }
+    }
+
+    /**
+     * @param string $rangeHeaderPos
+     * @param int $fileSize
+     * @return array $rangeArray ('from'=>int,'to'=>int), ...
+     */
+    private static function parseHttpRangeHeader($rangeHeaderPos, $fileSize) {
+        $rArray=explode(',', $rangeHeaderPos);
+        $minOffset = 0;
+        $ind = 0;
+
+        $rangeArray = array();
+
+        foreach ($rArray as $value) {
+            $ranges = explode('-', $value);
+            if (is_numeric($ranges[0])) {
+                if ($ranges[0] < $minOffset) { // case: bytes=500-700,601-999
+                    $ranges[0] = $minOffset;
+                }
+                if ($ind > 0 && $rangeArray[$ind-1]['to']+1 == $ranges[0]) { // case: bytes=500-600,601-999
+                    $ind--;
+                    $ranges[0] = $rangeArray[$ind]['from'];
+                }
+            }
+
+            if (is_numeric($ranges[0]) && is_numeric($ranges[1]) && $ranges[0] < $fileSize && $ranges[0] <= $ranges[1]) {
+                // case: x-x
+                if ($ranges[1] >= $fileSize) {
+                    $ranges[1] = $fileSize-1;
+                }
+                $rangeArray[$ind++] = array( 'from' => $ranges[0], 'to' => $ranges[1], 'size' => $fileSize );
+                $minOffset = $ranges[1] + 1;
+                if ($minOffset >= $fileSize) {
+                    break;
+                }
+            }
+            elseif (is_numeric($ranges[0]) && $ranges[0] < $fileSize) {
+                // case: x-
+                $rangeArray[$ind++] = array( 'from' => $ranges[0], 'to' => $fileSize-1, 'size' => $fileSize );
+                break;
+            }
+            elseif (is_numeric($ranges[1])) {
+                // case: -x
+                if ($ranges[1] > $fileSize) {
+                    $ranges[1] = $fileSize;
+                }
+                $rangeArray[$ind++] = array( 'from' => $fileSize-$ranges[1], 'to' => $fileSize-1, 'size' => $fileSize );
+                break;
+            }
+        }
+        return $rangeArray;
+    }
+
+    /**
+     * @param View $view
+     * @param string $name
+     * @param string $dir
+     * @param array $params ; 'head' boolean to only send header of the request ; 'range' http range header
+     */
+    private static function getSingleFile($view, $dir, $name, $params) {
+        $filename = $dir . '/' . $name;
+        OC_Util::obEnd();
+        $view->lockFile($filename, ILockingProvider::LOCK_SHARED);
 		
-		$rangeArray = array();
+        $rangeArray = array();
 
-		if (isset($params['range']) && substr($params['range'], 0, 6) === 'bytes=') {
-			$rangeArray = self::parseHttpRangeHeader(substr($params['range'], 6), 
-								 \OC\Files\Filesystem::filesize($filename));
-		}
+        if (isset($params['range']) && substr($params['range'], 0, 6) === 'bytes=') {
+            $rangeArray = self::parseHttpRangeHeader(substr($params['range'], 6), 
+                                    \OC\Files\Filesystem::filesize($filename));
+        }
 		
-		if (\OC\Files\Filesystem::isReadable($filename)) {
-			self::sendHeaders($filename, $name, $rangeArray);
-		} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
-			header("HTTP/1.1 404 Not Found");
-			$tmpl = new OC_Template('', '404', 'guest');
-			$tmpl->printPage();
-			exit();
-		} else {
-			header("HTTP/1.1 403 Forbidden");
-			die('403 Forbidden');
-		}
-		if (isset($params['head']) && $params['head']) {
-			return;
-		}
-		if (!empty($rangeArray)) {
-			try {
-			    if (count($rangeArray) == 1) {
-				$view->readfilePart($filename, $rangeArray[0]['from'], $rangeArray[0]['to']);
-			    }
-			    else {
-				// check if file is seekable (if not throw UnseekableException)
-				// we have to check it before body contents
-				$view->readfilePart($filename, $rangeArray[0]['size'], $rangeArray[0]['size']);
-
-				$type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
-
-				foreach ($rangeArray as $range) {
-				    echo "\r\n--".self::getBoundary()."\r\n".
-				         "Content-type: ".$type."\r\n".
-				         "Content-range: bytes ".$range['from']."-".$range['to']."/".$range['size']."\r\n\r\n";
-				    $view->readfilePart($filename, $range['from'], $range['to']);
-				}
-				echo "\r\n--".self::getBoundary()."--\r\n";
-			    }
-			} catch (\OCP\Files\UnseekableException $ex) {
-			    // file is unseekable
-			    header_remove('Accept-Ranges');
-			    header_remove('Content-Range');
-			    header("HTTP/1.1 200 OK");
-			    self::sendHeaders($filename, $name, array());
-			    $view->readfile($filename);
-			}
-		}
-		else {
-		    $view->readfile($filename);
-		}
-	}
-
-	/**
-	 * Returns the total (recursive) number of files and folders in the given
-	 * FileInfos.
-	 *
-	 * @param \OCP\Files\FileInfo[] $fileInfos the FileInfos to count
-	 * @return int the total number of files and folders
-	 */
-	private static function getNumberOfFiles($fileInfos) {
-		$numberOfFiles = 0;
-
-		$view = new View();
-
-		while ($fileInfo = array_pop($fileInfos)) {
-			$numberOfFiles++;
-
-			if ($fileInfo->getType() === \OCP\Files\FileInfo::TYPE_FOLDER) {
-				$fileInfos = array_merge($fileInfos, $view->getDirectoryContent($fileInfo->getPath()));
-			}
-		}
-
-		return $numberOfFiles;
-	}
-
-	/**
-	 * @param View $view
-	 * @param string $dir
-	 * @param string[]|string $files
-	 */
-	public static function lockFiles($view, $dir, $files) {
-		if (!is_array($files)) {
-			$file = $dir . '/' . $files;
-			$files = [$file];
-		}
-		foreach ($files as $file) {
-			$file = $dir . '/' . $file;
-			$view->lockFile($file, ILockingProvider::LOCK_SHARED);
-			if ($view->is_dir($file)) {
-				$contents = $view->getDirectoryContent($file);
-				$contents = array_map(function($fileInfo) use ($file) {
-					/** @var \OCP\Files\FileInfo $fileInfo */
-					return $file . '/' . $fileInfo->getName();
-				}, $contents);
-				self::lockFiles($view, $dir, $contents);
-			}
-		}
-	}
-
-	/**
-	 * set the maximum upload size limit for apache hosts using .htaccess
-	 *
-	 * @param int $size file size in bytes
-	 * @param array $files override '.htaccess' and '.user.ini' locations
-	 * @return bool|int false on failure, size on success
-	 */
-	public static function setUploadLimit($size, $files = []) {
-		//don't allow user to break his config
-		$size = (int)$size;
-		if ($size < self::UPLOAD_MIN_LIMIT_BYTES) {
-			return false;
-		}
-		$size = OC_Helper::phpFileSize($size);
-
-		$phpValueKeys = array(
-			'upload_max_filesize',
-			'post_max_size'
-		);
-
-		// default locations if not overridden by $files
-		$files = array_merge([
-			'.htaccess' => OC::$SERVERROOT . '/.htaccess',
-			'.user.ini' => OC::$SERVERROOT . '/.user.ini'
-		], $files);
-
-		$updateFiles = [
-			$files['.htaccess'] => [
-				'pattern' => '/php_value %1$s (\S)*/',
-				'setting' => 'php_value %1$s %2$s'
-			],
-			$files['.user.ini'] => [
-				'pattern' => '/%1$s=(\S)*/',
-				'setting' => '%1$s=%2$s'
-			]
-		];
-
-		$success = true;
-
-		foreach ($updateFiles as $filename => $patternMap) {
-			// suppress warnings from fopen()
-			$handle = @fopen($filename, 'r+');
-			if (!$handle) {
-				\OCP\Util::writeLog('files',
-					'Can\'t write upload limit to ' . $filename . '. Please check the file permissions',
-					ILogger::WARN);
-				$success = false;
-				continue; // try to update as many files as possible
-			}
-
-			$content = '';
-			while (!feof($handle)) {
-				$content .= fread($handle, 1000);
-			}
-
-			foreach ($phpValueKeys as $key) {
-				$pattern = vsprintf($patternMap['pattern'], [$key]);
-				$setting = vsprintf($patternMap['setting'], [$key, $size]);
-				$hasReplaced = 0;
-				$newContent = preg_replace($pattern, $setting, $content, 2, $hasReplaced);
-				if ($newContent !== null) {
-					$content = $newContent;
-				}
-				if ($hasReplaced === 0) {
-					$content .= "\n" . $setting;
-				}
-			}
-
-			// write file back
-			ftruncate($handle, 0);
-			rewind($handle);
-			fwrite($handle, $content);
-
-			fclose($handle);
-		}
-
-		if ($success) {
-			return OC_Helper::computerFileSize($size);
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $dir
-	 * @param $files
-	 * @param integer $getType
-	 * @param View $view
-	 * @param string $filename
-	 */
-	private static function unlockAllTheFiles($dir, $files, $getType, $view, $filename) {
-		if ($getType === self::FILE) {
-			$view->unlockFile($filename, ILockingProvider::LOCK_SHARED);
-		}
-		if ($getType === self::ZIP_FILES) {
-			foreach ($files as $file) {
-				$file = $dir . '/' . $file;
-				$view->unlockFile($file, ILockingProvider::LOCK_SHARED);
-			}
-		}
-		if ($getType === self::ZIP_DIR) {
-			$file = $dir . '/' . $files;
-			$view->unlockFile($file, ILockingProvider::LOCK_SHARED);
-		}
-	}
+        if (\OC\Files\Filesystem::isReadable($filename)) {
+            self::sendHeaders($filename, $name, $rangeArray);
+        } elseif (!\OC\Files\Filesystem::file_exists($filename)) {
+            header("HTTP/1.1 404 Not Found");
+            $tmpl = new OC_Template('', '404', 'guest');
+            $tmpl->printPage();
+            exit();
+        } else {
+            header("HTTP/1.1 403 Forbidden");
+            die('403 Forbidden');
+        }
+        if (isset($params['head']) && $params['head']) {
+            return;
+        }
+        if (!empty($rangeArray)) {
+            try {
+                if (count($rangeArray) == 1) {
+                $view->readfilePart($filename, $rangeArray[0]['from'], $rangeArray[0]['to']);
+                }
+                else {
+                // check if file is seekable (if not throw UnseekableException)
+                // we have to check it before body contents
+                $view->readfilePart($filename, $rangeArray[0]['size'], $rangeArray[0]['size']);
+
+                $type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
+
+                foreach ($rangeArray as $range) {
+                    echo "\r\n--".self::getBoundary()."\r\n".
+                            "Content-type: ".$type."\r\n".
+                            "Content-range: bytes ".$range['from']."-".$range['to']."/".$range['size']."\r\n\r\n";
+                    $view->readfilePart($filename, $range['from'], $range['to']);
+                }
+                echo "\r\n--".self::getBoundary()."--\r\n";
+                }
+            } catch (\OCP\Files\UnseekableException $ex) {
+                // file is unseekable
+                header_remove('Accept-Ranges');
+                header_remove('Content-Range');
+                header("HTTP/1.1 200 OK");
+                self::sendHeaders($filename, $name, array());
+                $view->readfile($filename);
+            }
+        }
+        else {
+            $view->readfile($filename);
+        }
+    }
+
+    /**
+     * Returns the total (recursive) number of files and folders in the given
+     * FileInfos.
+     *
+     * @param \OCP\Files\FileInfo[] $fileInfos the FileInfos to count
+     * @return int the total number of files and folders
+     */
+    private static function getNumberOfFiles($fileInfos) {
+        $numberOfFiles = 0;
+
+        $view = new View();
+
+        while ($fileInfo = array_pop($fileInfos)) {
+            $numberOfFiles++;
+
+            if ($fileInfo->getType() === \OCP\Files\FileInfo::TYPE_FOLDER) {
+                $fileInfos = array_merge($fileInfos, $view->getDirectoryContent($fileInfo->getPath()));
+            }
+        }
+
+        return $numberOfFiles;
+    }
+
+    /**
+     * @param View $view
+     * @param string $dir
+     * @param string[]|string $files
+     */
+    public static function lockFiles($view, $dir, $files) {
+        if (!is_array($files)) {
+            $file = $dir . '/' . $files;
+            $files = [$file];
+        }
+        foreach ($files as $file) {
+            $file = $dir . '/' . $file;
+            $view->lockFile($file, ILockingProvider::LOCK_SHARED);
+            if ($view->is_dir($file)) {
+                $contents = $view->getDirectoryContent($file);
+                $contents = array_map(function($fileInfo) use ($file) {
+                    /** @var \OCP\Files\FileInfo $fileInfo */
+                    return $file . '/' . $fileInfo->getName();
+                }, $contents);
+                self::lockFiles($view, $dir, $contents);
+            }
+        }
+    }
+
+    /**
+     * set the maximum upload size limit for apache hosts using .htaccess
+     *
+     * @param int $size file size in bytes
+     * @param array $files override '.htaccess' and '.user.ini' locations
+     * @return bool|int false on failure, size on success
+     */
+    public static function setUploadLimit($size, $files = []) {
+        //don't allow user to break his config
+        $size = (int)$size;
+        if ($size < self::UPLOAD_MIN_LIMIT_BYTES) {
+            return false;
+        }
+        $size = OC_Helper::phpFileSize($size);
+
+        $phpValueKeys = array(
+            'upload_max_filesize',
+            'post_max_size'
+        );
+
+        // default locations if not overridden by $files
+        $files = array_merge([
+            '.htaccess' => OC::$SERVERROOT . '/.htaccess',
+            '.user.ini' => OC::$SERVERROOT . '/.user.ini'
+        ], $files);
+
+        $updateFiles = [
+            $files['.htaccess'] => [
+                'pattern' => '/php_value %1$s (\S)*/',
+                'setting' => 'php_value %1$s %2$s'
+            ],
+            $files['.user.ini'] => [
+                'pattern' => '/%1$s=(\S)*/',
+                'setting' => '%1$s=%2$s'
+            ]
+        ];
+
+        $success = true;
+
+        foreach ($updateFiles as $filename => $patternMap) {
+            // suppress warnings from fopen()
+            $handle = @fopen($filename, 'r+');
+            if (!$handle) {
+                \OCP\Util::writeLog('files',
+                    'Can\'t write upload limit to ' . $filename . '. Please check the file permissions',
+                    ILogger::WARN);
+                $success = false;
+                continue; // try to update as many files as possible
+            }
+
+            $content = '';
+            while (!feof($handle)) {
+                $content .= fread($handle, 1000);
+            }
+
+            foreach ($phpValueKeys as $key) {
+                $pattern = vsprintf($patternMap['pattern'], [$key]);
+                $setting = vsprintf($patternMap['setting'], [$key, $size]);
+                $hasReplaced = 0;
+                $newContent = preg_replace($pattern, $setting, $content, 2, $hasReplaced);
+                if ($newContent !== null) {
+                    $content = $newContent;
+                }
+                if ($hasReplaced === 0) {
+                    $content .= "\n" . $setting;
+                }
+            }
+
+            // write file back
+            ftruncate($handle, 0);
+            rewind($handle);
+            fwrite($handle, $content);
+
+            fclose($handle);
+        }
+
+        if ($success) {
+            return OC_Helper::computerFileSize($size);
+        }
+        return false;
+    }
+
+    /**
+     * @param string $dir
+     * @param $files
+     * @param integer $getType
+     * @param View $view
+     * @param string $filename
+     */
+    private static function unlockAllTheFiles($dir, $files, $getType, $view, $filename) {
+        if ($getType === self::FILE) {
+            $view->unlockFile($filename, ILockingProvider::LOCK_SHARED);
+        }
+        if ($getType === self::ZIP_FILES) {
+            foreach ($files as $file) {
+                $file = $dir . '/' . $file;
+                $view->unlockFile($file, ILockingProvider::LOCK_SHARED);
+            }
+        }
+        if ($getType === self::ZIP_DIR) {
+            $file = $dir . '/' . $files;
+            $view->unlockFile($file, ILockingProvider::LOCK_SHARED);
+        }
+    }
 
 }

Spacing +26 added lines, -26 removed lines

@@ -76,7 +76,7 @@ 
 	private static function sendHeaders($filename, $name, array $rangeArray) {
 		OC_Response::setContentDispositionHeader($name, 'attachment');
 		header('Content-Transfer-Encoding: binary', true);
-		header('Pragma: public');// enable caching in IE
+		header('Pragma: public'); // enable caching in IE
 		header('Expires: 0');
 		header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
 		$fileSize = \OC\Files\Filesystem::filesize($filename);
@@ -120,7 +120,7 @@ 
 			}
 
 			if (!is_array($files)) {
-				$filename = $dir . '/' . $files;
+				$filename = $dir.'/'.$files;
 				if (!$view->is_dir($filename)) {
 					self::getSingleFile($view, $dir, $files, is_null($params) ? array() : $params);
 					return;
@@ -135,9 +135,9 @@ 
 					$name = $basename;
 				}
 
-				$filename = $dir . '/' . $name;
+				$filename = $dir.'/'.$name;
 			} else {
-				$filename = $dir . '/' . $files;
+				$filename = $dir.'/'.$files;
 				$getType = self::ZIP_DIR;
 				// downloading root ?
 				if ($files !== '') {
@@ -152,13 +152,13 @@ 
 				$fileInfos = array();
 				$fileSize = 0;
 				foreach ($files as $file) {
-					$fileInfo = \OC\Files\Filesystem::getFileInfo($dir . '/' . $file);
+					$fileInfo = \OC\Files\Filesystem::getFileInfo($dir.'/'.$file);
 					$fileSize += $fileInfo->getSize();
 					$fileInfos[] = $fileInfo;
 				}
 				$numberOfFiles = self::getNumberOfFiles($fileInfos);
 			} elseif ($getType === self::ZIP_DIR) {
-				$fileInfo = \OC\Files\Filesystem::getFileInfo($dir . '/' . $files);
+				$fileInfo = \OC\Files\Filesystem::getFileInfo($dir.'/'.$files);
 				$fileSize = $fileInfo->getSize();
 				$numberOfFiles = self::getNumberOfFiles(array($fileInfo));
 			}
@@ -167,7 +167,7 @@ 
 			OC_Util::obEnd();
 
 			$streamer->sendHeaders($name);
-			$executionTime = (int)OC::$server->getIniWrapper()->getNumeric('max_execution_time');
+			$executionTime = (int) OC::$server->getIniWrapper()->getNumeric('max_execution_time');
 			if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
 				@set_time_limit(0);
 			}
@@ -175,7 +175,7 @@ 
 
 			if ($getType === self::ZIP_FILES) {
 				foreach ($files as $file) {
-					$file = $dir . '/' . $file;
+					$file = $dir.'/'.$file;
 					if (\OC\Files\Filesystem::is_file($file)) {
 						$fileSize = \OC\Files\Filesystem::filesize($file);
 						$fileTime = \OC\Files\Filesystem::filemtime($file);
@@ -187,7 +187,7 @@ 
 					}
 				}
 			} elseif ($getType === self::ZIP_DIR) {
-				$file = $dir . '/' . $files;
+				$file = $dir.'/'.$files;
 				$streamer->addDirRecursive($file);
 			}
 			$streamer->finalize();
@@ -219,7 +219,7 @@ 
 	 * @return array $rangeArray ('from'=>int,'to'=>int), ...
 	 */
 	private static function parseHttpRangeHeader($rangeHeaderPos, $fileSize) {
-		$rArray=explode(',', $rangeHeaderPos);
+		$rArray = explode(',', $rangeHeaderPos);
 		$minOffset = 0;
 		$ind = 0;
 
@@ -231,7 +231,7 @@ 
 				if ($ranges[0] < $minOffset) { // case: bytes=500-700,601-999
 					$ranges[0] = $minOffset;
 				}
-				if ($ind > 0 && $rangeArray[$ind-1]['to']+1 == $ranges[0]) { // case: bytes=500-600,601-999
+				if ($ind > 0 && $rangeArray[$ind - 1]['to'] + 1 == $ranges[0]) { // case: bytes=500-600,601-999
 					$ind--;
 					$ranges[0] = $rangeArray[$ind]['from'];
 				}
@@ -240,9 +240,9 @@ 
 			if (is_numeric($ranges[0]) && is_numeric($ranges[1]) && $ranges[0] < $fileSize && $ranges[0] <= $ranges[1]) {
 				// case: x-x
 				if ($ranges[1] >= $fileSize) {
-					$ranges[1] = $fileSize-1;
+					$ranges[1] = $fileSize - 1;
 				}
-				$rangeArray[$ind++] = array( 'from' => $ranges[0], 'to' => $ranges[1], 'size' => $fileSize );
+				$rangeArray[$ind++] = array('from' => $ranges[0], 'to' => $ranges[1], 'size' => $fileSize);
 				$minOffset = $ranges[1] + 1;
 				if ($minOffset >= $fileSize) {
 					break;
@@ -250,7 +250,7 @@ 
 			}
 			elseif (is_numeric($ranges[0]) && $ranges[0] < $fileSize) {
 				// case: x-
-				$rangeArray[$ind++] = array( 'from' => $ranges[0], 'to' => $fileSize-1, 'size' => $fileSize );
+				$rangeArray[$ind++] = array('from' => $ranges[0], 'to' => $fileSize - 1, 'size' => $fileSize);
 				break;
 			}
 			elseif (is_numeric($ranges[1])) {
@@ -258,7 +258,7 @@ 
 				if ($ranges[1] > $fileSize) {
 					$ranges[1] = $fileSize;
 				}
-				$rangeArray[$ind++] = array( 'from' => $fileSize-$ranges[1], 'to' => $fileSize-1, 'size' => $fileSize );
+				$rangeArray[$ind++] = array('from' => $fileSize - $ranges[1], 'to' => $fileSize - 1, 'size' => $fileSize);
 				break;
 			}
 		}
@@ -272,7 +272,7 @@ 
 	 * @param array $params ; 'head' boolean to only send header of the request ; 'range' http range header
 	 */
 	private static function getSingleFile($view, $dir, $name, $params) {
-		$filename = $dir . '/' . $name;
+		$filename = $dir.'/'.$name;
 		OC_Util::obEnd();
 		$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
 		
@@ -361,17 +361,17 @@ 
 	 */
 	public static function lockFiles($view, $dir, $files) {
 		if (!is_array($files)) {
-			$file = $dir . '/' . $files;
+			$file = $dir.'/'.$files;
 			$files = [$file];
 		}
 		foreach ($files as $file) {
-			$file = $dir . '/' . $file;
+			$file = $dir.'/'.$file;
 			$view->lockFile($file, ILockingProvider::LOCK_SHARED);
 			if ($view->is_dir($file)) {
 				$contents = $view->getDirectoryContent($file);
 				$contents = array_map(function($fileInfo) use ($file) {
 					/** @var \OCP\Files\FileInfo $fileInfo */
-					return $file . '/' . $fileInfo->getName();
+					return $file.'/'.$fileInfo->getName();
 				}, $contents);
 				self::lockFiles($view, $dir, $contents);
 			}
@@ -387,7 +387,7 @@ 
 	 */
 	public static function setUploadLimit($size, $files = []) {
 		//don't allow user to break his config
-		$size = (int)$size;
+		$size = (int) $size;
 		if ($size < self::UPLOAD_MIN_LIMIT_BYTES) {
 			return false;
 		}
@@ -400,8 +400,8 @@ 
 
 		// default locations if not overridden by $files
 		$files = array_merge([
-			'.htaccess' => OC::$SERVERROOT . '/.htaccess',
-			'.user.ini' => OC::$SERVERROOT . '/.user.ini'
+			'.htaccess' => OC::$SERVERROOT.'/.htaccess',
+			'.user.ini' => OC::$SERVERROOT.'/.user.ini'
 		], $files);
 
 		$updateFiles = [
@@ -422,7 +422,7 @@ 
 			$handle = @fopen($filename, 'r+');
 			if (!$handle) {
 				\OCP\Util::writeLog('files',
-					'Can\'t write upload limit to ' . $filename . '. Please check the file permissions',
+					'Can\'t write upload limit to '.$filename.'. Please check the file permissions',
 					ILogger::WARN);
 				$success = false;
 				continue; // try to update as many files as possible
@@ -442,7 +442,7 @@ 
 					$content = $newContent;
 				}
 				if ($hasReplaced === 0) {
-					$content .= "\n" . $setting;
+					$content .= "\n".$setting;
 				}
 			}
 
@@ -473,12 +473,12 @@ 
 		}
 		if ($getType === self::ZIP_FILES) {
 			foreach ($files as $file) {
-				$file = $dir . '/' . $file;
+				$file = $dir.'/'.$file;
 				$view->unlockFile($file, ILockingProvider::LOCK_SHARED);
 			}
 		}
 		if ($getType === self::ZIP_DIR) {
-			$file = $dir . '/' . $files;
+			$file = $dir.'/'.$files;
 			$view->unlockFile($file, ILockingProvider::LOCK_SHARED);
 		}
 	}

lib/private/legacy/util.php

Indentation +1432 added lines, -1432 removed lines

@@ -66,1440 +66,1440 @@
 use OCP\IUser;
 
 class OC_Util {
-	public static $scripts = array();
-	public static $styles = array();
-	public static $headers = array();
-	private static $rootMounted = false;
-	private static $fsSetup = false;
-
-	/** @var array Local cache of version.php */
-	private static $versionCache = null;
-
-	protected static function getAppManager() {
-		return \OC::$server->getAppManager();
-	}
-
-	private static function initLocalStorageRootFS() {
-		// mount local file backend as root
-		$configDataDirectory = \OC::$server->getSystemConfig()->getValue("datadirectory", OC::$SERVERROOT . "/data");
-		//first set up the local "root" storage
-		\OC\Files\Filesystem::initMountManager();
-		if (!self::$rootMounted) {
-			\OC\Files\Filesystem::mount('\OC\Files\Storage\Local', array('datadir' => $configDataDirectory), '/');
-			self::$rootMounted = true;
-		}
-	}
-
-	/**
-	 * mounting an object storage as the root fs will in essence remove the
-	 * necessity of a data folder being present.
-	 * TODO make home storage aware of this and use the object storage instead of local disk access
-	 *
-	 * @param array $config containing 'class' and optional 'arguments'
-	 * @suppress PhanDeprecatedFunction
-	 */
-	private static function initObjectStoreRootFS($config) {
-		// check misconfiguration
-		if (empty($config['class'])) {
-			\OCP\Util::writeLog('files', 'No class given for objectstore', ILogger::ERROR);
-		}
-		if (!isset($config['arguments'])) {
-			$config['arguments'] = array();
-		}
-
-		// instantiate object store implementation
-		$name = $config['class'];
-		if (strpos($name, 'OCA\\') === 0 && substr_count($name, '\\') >= 2) {
-			$segments = explode('\\', $name);
-			OC_App::loadApp(strtolower($segments[1]));
-		}
-		$config['arguments']['objectstore'] = new $config['class']($config['arguments']);
-		// mount with plain / root object store implementation
-		$config['class'] = '\OC\Files\ObjectStore\ObjectStoreStorage';
-
-		// mount object storage as root
-		\OC\Files\Filesystem::initMountManager();
-		if (!self::$rootMounted) {
-			\OC\Files\Filesystem::mount($config['class'], $config['arguments'], '/');
-			self::$rootMounted = true;
-		}
-	}
-
-	/**
-	 * mounting an object storage as the root fs will in essence remove the
-	 * necessity of a data folder being present.
-	 *
-	 * @param array $config containing 'class' and optional 'arguments'
-	 * @suppress PhanDeprecatedFunction
-	 */
-	private static function initObjectStoreMultibucketRootFS($config) {
-		// check misconfiguration
-		if (empty($config['class'])) {
-			\OCP\Util::writeLog('files', 'No class given for objectstore', ILogger::ERROR);
-		}
-		if (!isset($config['arguments'])) {
-			$config['arguments'] = array();
-		}
-
-		// instantiate object store implementation
-		$name = $config['class'];
-		if (strpos($name, 'OCA\\') === 0 && substr_count($name, '\\') >= 2) {
-			$segments = explode('\\', $name);
-			OC_App::loadApp(strtolower($segments[1]));
-		}
-
-		if (!isset($config['arguments']['bucket'])) {
-			$config['arguments']['bucket'] = '';
-		}
-		// put the root FS always in first bucket for multibucket configuration
-		$config['arguments']['bucket'] .= '0';
-
-		$config['arguments']['objectstore'] = new $config['class']($config['arguments']);
-		// mount with plain / root object store implementation
-		$config['class'] = '\OC\Files\ObjectStore\ObjectStoreStorage';
-
-		// mount object storage as root
-		\OC\Files\Filesystem::initMountManager();
-		if (!self::$rootMounted) {
-			\OC\Files\Filesystem::mount($config['class'], $config['arguments'], '/');
-			self::$rootMounted = true;
-		}
-	}
-
-	/**
-	 * Can be set up
-	 *
-	 * @param string $user
-	 * @return boolean
-	 * @description configure the initial filesystem based on the configuration
-	 * @suppress PhanDeprecatedFunction
-	 * @suppress PhanAccessMethodInternal
-	 */
-	public static function setupFS($user = '') {
-		//setting up the filesystem twice can only lead to trouble
-		if (self::$fsSetup) {
-			return false;
-		}
-
-		\OC::$server->getEventLogger()->start('setup_fs', 'Setup filesystem');
-
-		// If we are not forced to load a specific user we load the one that is logged in
-		if ($user === null) {
-			$user = '';
-		} else if ($user == "" && \OC::$server->getUserSession()->isLoggedIn()) {
-			$user = OC_User::getUser();
-		}
-
-		// load all filesystem apps before, so no setup-hook gets lost
-		OC_App::loadApps(array('filesystem'));
-
-		// the filesystem will finish when $user is not empty,
-		// mark fs setup here to avoid doing the setup from loading
-		// OC_Filesystem
-		if ($user != '') {
-			self::$fsSetup = true;
-		}
-
-		\OC\Files\Filesystem::initMountManager();
-
-		\OC\Files\Filesystem::logWarningWhenAddingStorageWrapper(false);
-		\OC\Files\Filesystem::addStorageWrapper('mount_options', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
-			if ($storage->instanceOfStorage('\OC\Files\Storage\Common')) {
-				/** @var \OC\Files\Storage\Common $storage */
-				$storage->setMountOptions($mount->getOptions());
-			}
-			return $storage;
-		});
-
-		\OC\Files\Filesystem::addStorageWrapper('enable_sharing', function ($mountPoint, \OCP\Files\Storage\IStorage $storage, \OCP\Files\Mount\IMountPoint $mount) {
-			if (!$mount->getOption('enable_sharing', true)) {
-				return new \OC\Files\Storage\Wrapper\PermissionsMask([
-					'storage' => $storage,
-					'mask' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_SHARE
-				]);
-			}
-			return $storage;
-		});
-
-		// install storage availability wrapper, before most other wrappers
-		\OC\Files\Filesystem::addStorageWrapper('oc_availability', function ($mountPoint, \OCP\Files\Storage\IStorage $storage) {
-			if (!$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
-				return new \OC\Files\Storage\Wrapper\Availability(['storage' => $storage]);
-			}
-			return $storage;
-		});
-
-		\OC\Files\Filesystem::addStorageWrapper('oc_encoding', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
-			if ($mount->getOption('encoding_compatibility', false) && !$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
-				return new \OC\Files\Storage\Wrapper\Encoding(['storage' => $storage]);
-			}
-			return $storage;
-		});
-
-		\OC\Files\Filesystem::addStorageWrapper('oc_quota', function ($mountPoint, $storage) {
-			// set up quota for home storages, even for other users
-			// which can happen when using sharing
-
-			/**
-			 * @var \OC\Files\Storage\Storage $storage
-			 */
-			if ($storage->instanceOfStorage('\OC\Files\Storage\Home')
-				|| $storage->instanceOfStorage('\OC\Files\ObjectStore\HomeObjectStoreStorage')
-			) {
-				/** @var \OC\Files\Storage\Home $storage */
-				if (is_object($storage->getUser())) {
-					$user = $storage->getUser()->getUID();
-					$quota = OC_Util::getUserQuota($user);
-					if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) {
-						return new \OC\Files\Storage\Wrapper\Quota(array('storage' => $storage, 'quota' => $quota, 'root' => 'files'));
-					}
-				}
-			}
-
-			return $storage;
-		});
-
-		OC_Hook::emit('OC_Filesystem', 'preSetup', array('user' => $user));
-		\OC\Files\Filesystem::logWarningWhenAddingStorageWrapper(true);
-
-		//check if we are using an object storage
-		$objectStore = \OC::$server->getSystemConfig()->getValue('objectstore', null);
-		$objectStoreMultibucket = \OC::$server->getSystemConfig()->getValue('objectstore_multibucket', null);
-
-		// use the same order as in ObjectHomeMountProvider
-		if (isset($objectStoreMultibucket)) {
-			self::initObjectStoreMultibucketRootFS($objectStoreMultibucket);
-		} elseif (isset($objectStore)) {
-			self::initObjectStoreRootFS($objectStore);
-		} else {
-			self::initLocalStorageRootFS();
-		}
-
-		if ($user != '' && !\OC::$server->getUserManager()->userExists($user)) {
-			\OC::$server->getEventLogger()->end('setup_fs');
-			return false;
-		}
-
-		//if we aren't logged in, there is no use to set up the filesystem
-		if ($user != "") {
-
-			$userDir = '/' . $user . '/files';
-
-			//jail the user into his "home" directory
-			\OC\Files\Filesystem::init($user, $userDir);
-
-			OC_Hook::emit('OC_Filesystem', 'setup', array('user' => $user, 'user_dir' => $userDir));
-		}
-		\OC::$server->getEventLogger()->end('setup_fs');
-		return true;
-	}
-
-	/**
-	 * check if a password is required for each public link
-	 *
-	 * @return boolean
-	 * @suppress PhanDeprecatedFunction
-	 */
-	public static function isPublicLinkPasswordRequired() {
-		$enforcePassword = \OC::$server->getConfig()->getAppValue('core', 'shareapi_enforce_links_password', 'no');
-		return $enforcePassword === 'yes';
-	}
-
-	/**
-	 * check if sharing is disabled for the current user
-	 * @param IConfig $config
-	 * @param IGroupManager $groupManager
-	 * @param IUser|null $user
-	 * @return bool
-	 */
-	public static function isSharingDisabledForUser(IConfig $config, IGroupManager $groupManager, $user) {
-		if ($config->getAppValue('core', 'shareapi_exclude_groups', 'no') === 'yes') {
-			$groupsList = $config->getAppValue('core', 'shareapi_exclude_groups_list', '');
-			$excludedGroups = json_decode($groupsList);
-			if (is_null($excludedGroups)) {
-				$excludedGroups = explode(',', $groupsList);
-				$newValue = json_encode($excludedGroups);
-				$config->setAppValue('core', 'shareapi_exclude_groups_list', $newValue);
-			}
-			$usersGroups = $groupManager->getUserGroupIds($user);
-			if (!empty($usersGroups)) {
-				$remainingGroups = array_diff($usersGroups, $excludedGroups);
-				// if the user is only in groups which are disabled for sharing then
-				// sharing is also disabled for the user
-				if (empty($remainingGroups)) {
-					return true;
-				}
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * check if share API enforces a default expire date
-	 *
-	 * @return boolean
-	 * @suppress PhanDeprecatedFunction
-	 */
-	public static function isDefaultExpireDateEnforced() {
-		$isDefaultExpireDateEnabled = \OC::$server->getConfig()->getAppValue('core', 'shareapi_default_expire_date', 'no');
-		$enforceDefaultExpireDate = false;
-		if ($isDefaultExpireDateEnabled === 'yes') {
-			$value = \OC::$server->getConfig()->getAppValue('core', 'shareapi_enforce_expire_date', 'no');
-			$enforceDefaultExpireDate = $value === 'yes';
-		}
-
-		return $enforceDefaultExpireDate;
-	}
-
-	/**
-	 * Get the quota of a user
-	 *
-	 * @param string $userId
-	 * @return float Quota bytes
-	 */
-	public static function getUserQuota($userId) {
-		$user = \OC::$server->getUserManager()->get($userId);
-		if (is_null($user)) {
-			return \OCP\Files\FileInfo::SPACE_UNLIMITED;
-		}
-		$userQuota = $user->getQuota();
-		if($userQuota === 'none') {
-			return \OCP\Files\FileInfo::SPACE_UNLIMITED;
-		}
-		return OC_Helper::computerFileSize($userQuota);
-	}
-
-	/**
-	 * copies the skeleton to the users /files
-	 *
-	 * @param String $userId
-	 * @param \OCP\Files\Folder $userDirectory
-	 * @throws \RuntimeException
-	 * @suppress PhanDeprecatedFunction
-	 */
-	public static function copySkeleton($userId, \OCP\Files\Folder $userDirectory) {
-
-		$plainSkeletonDirectory = \OC::$server->getConfig()->getSystemValue('skeletondirectory', \OC::$SERVERROOT . '/core/skeleton');
-		$userLang = \OC::$server->getL10NFactory()->findLanguage();
-		$skeletonDirectory = str_replace('{lang}', $userLang, $plainSkeletonDirectory);
-
-		if (!file_exists($skeletonDirectory)) {
-			$dialectStart = strpos($userLang, '_');
-			if ($dialectStart !== false) {
-				$skeletonDirectory = str_replace('{lang}', substr($userLang, 0, $dialectStart), $plainSkeletonDirectory);
-			}
-			if ($dialectStart === false || !file_exists($skeletonDirectory)) {
-				$skeletonDirectory = str_replace('{lang}', 'default', $plainSkeletonDirectory);
-			}
-			if (!file_exists($skeletonDirectory)) {
-				$skeletonDirectory = '';
-			}
-		}
-
-		$instanceId = \OC::$server->getConfig()->getSystemValue('instanceid', '');
-
-		if ($instanceId === null) {
-			throw new \RuntimeException('no instance id!');
-		}
-		$appdata = 'appdata_' . $instanceId;
-		if ($userId === $appdata) {
-			throw new \RuntimeException('username is reserved name: ' . $appdata);
-		}
-
-		if (!empty($skeletonDirectory)) {
-			\OCP\Util::writeLog(
-				'files_skeleton',
-				'copying skeleton for '.$userId.' from '.$skeletonDirectory.' to '.$userDirectory->getFullPath('/'),
-				ILogger::DEBUG
-			);
-			self::copyr($skeletonDirectory, $userDirectory);
-			// update the file cache
-			$userDirectory->getStorage()->getScanner()->scan('', \OC\Files\Cache\Scanner::SCAN_RECURSIVE);
-		}
-	}
-
-	/**
-	 * copies a directory recursively by using streams
-	 *
-	 * @param string $source
-	 * @param \OCP\Files\Folder $target
-	 * @return void
-	 */
-	public static function copyr($source, \OCP\Files\Folder $target) {
-		$logger = \OC::$server->getLogger();
-
-		// Verify if folder exists
-		$dir = opendir($source);
-		if($dir === false) {
-			$logger->error(sprintf('Could not opendir "%s"', $source), ['app' => 'core']);
-			return;
-		}
-
-		// Copy the files
-		while (false !== ($file = readdir($dir))) {
-			if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
-				if (is_dir($source . '/' . $file)) {
-					$child = $target->newFolder($file);
-					self::copyr($source . '/' . $file, $child);
-				} else {
-					$child = $target->newFile($file);
-					$sourceStream = fopen($source . '/' . $file, 'r');
-					if($sourceStream === false) {
-						$logger->error(sprintf('Could not fopen "%s"', $source . '/' . $file), ['app' => 'core']);
-						closedir($dir);
-						return;
-					}
-					stream_copy_to_stream($sourceStream, $child->fopen('w'));
-				}
-			}
-		}
-		closedir($dir);
-	}
-
-	/**
-	 * @return void
-	 * @suppress PhanUndeclaredMethod
-	 */
-	public static function tearDownFS() {
-		\OC\Files\Filesystem::tearDown();
-		\OC::$server->getRootFolder()->clearCache();
-		self::$fsSetup = false;
-		self::$rootMounted = false;
-	}
-
-	/**
-	 * get the current installed version of ownCloud
-	 *
-	 * @return array
-	 */
-	public static function getVersion() {
-		OC_Util::loadVersion();
-		return self::$versionCache['OC_Version'];
-	}
-
-	/**
-	 * get the current installed version string of ownCloud
-	 *
-	 * @return string
-	 */
-	public static function getVersionString() {
-		OC_Util::loadVersion();
-		return self::$versionCache['OC_VersionString'];
-	}
-
-	/**
-	 * @deprecated the value is of no use anymore
-	 * @return string
-	 */
-	public static function getEditionString() {
-		return '';
-	}
-
-	/**
-	 * @description get the update channel of the current installed of ownCloud.
-	 * @return string
-	 */
-	public static function getChannel() {
-		OC_Util::loadVersion();
-		return \OC::$server->getConfig()->getSystemValue('updater.release.channel', self::$versionCache['OC_Channel']);
-	}
-
-	/**
-	 * @description get the build number of the current installed of ownCloud.
-	 * @return string
-	 */
-	public static function getBuild() {
-		OC_Util::loadVersion();
-		return self::$versionCache['OC_Build'];
-	}
-
-	/**
-	 * @description load the version.php into the session as cache
-	 * @suppress PhanUndeclaredVariable
-	 */
-	private static function loadVersion() {
-		if (self::$versionCache !== null) {
-			return;
-		}
-
-		$timestamp = filemtime(OC::$SERVERROOT . '/version.php');
-		require OC::$SERVERROOT . '/version.php';
-		/** @var $timestamp int */
-		self::$versionCache['OC_Version_Timestamp'] = $timestamp;
-		/** @var $OC_Version string */
-		self::$versionCache['OC_Version'] = $OC_Version;
-		/** @var $OC_VersionString string */
-		self::$versionCache['OC_VersionString'] = $OC_VersionString;
-		/** @var $OC_Build string */
-		self::$versionCache['OC_Build'] = $OC_Build;
-
-		/** @var $OC_Channel string */
-		self::$versionCache['OC_Channel'] = $OC_Channel;
-	}
-
-	/**
-	 * generates a path for JS/CSS files. If no application is provided it will create the path for core.
-	 *
-	 * @param string $application application to get the files from
-	 * @param string $directory directory within this application (css, js, vendor, etc)
-	 * @param string $file the file inside of the above folder
-	 * @return string the path
-	 */
-	private static function generatePath($application, $directory, $file) {
-		if (is_null($file)) {
-			$file = $application;
-			$application = "";
-		}
-		if (!empty($application)) {
-			return "$application/$directory/$file";
-		} else {
-			return "$directory/$file";
-		}
-	}
-
-	/**
-	 * add a javascript file
-	 *
-	 * @param string $application application id
-	 * @param string|null $file filename
-	 * @param bool $prepend prepend the Script to the beginning of the list
-	 * @return void
-	 */
-	public static function addScript($application, $file = null, $prepend = false) {
-		$path = OC_Util::generatePath($application, 'js', $file);
-
-		// core js files need separate handling
-		if ($application !== 'core' && $file !== null) {
-			self::addTranslations ( $application );
-		}
-		self::addExternalResource($application, $prepend, $path, "script");
-	}
-
-	/**
-	 * add a javascript file from the vendor sub folder
-	 *
-	 * @param string $application application id
-	 * @param string|null $file filename
-	 * @param bool $prepend prepend the Script to the beginning of the list
-	 * @return void
-	 */
-	public static function addVendorScript($application, $file = null, $prepend = false) {
-		$path = OC_Util::generatePath($application, 'vendor', $file);
-		self::addExternalResource($application, $prepend, $path, "script");
-	}
-
-	/**
-	 * add a translation JS file
-	 *
-	 * @param string $application application id
-	 * @param string|null $languageCode language code, defaults to the current language
-	 * @param bool|null $prepend prepend the Script to the beginning of the list
-	 */
-	public static function addTranslations($application, $languageCode = null, $prepend = false) {
-		if (is_null($languageCode)) {
-			$languageCode = \OC::$server->getL10NFactory()->findLanguage($application);
-		}
-		if (!empty($application)) {
-			$path = "$application/l10n/$languageCode";
-		} else {
-			$path = "l10n/$languageCode";
-		}
-		self::addExternalResource($application, $prepend, $path, "script");
-	}
-
-	/**
-	 * add a css file
-	 *
-	 * @param string $application application id
-	 * @param string|null $file filename
-	 * @param bool $prepend prepend the Style to the beginning of the list
-	 * @return void
-	 */
-	public static function addStyle($application, $file = null, $prepend = false) {
-		$path = OC_Util::generatePath($application, 'css', $file);
-		self::addExternalResource($application, $prepend, $path, "style");
-	}
-
-	/**
-	 * add a css file from the vendor sub folder
-	 *
-	 * @param string $application application id
-	 * @param string|null $file filename
-	 * @param bool $prepend prepend the Style to the beginning of the list
-	 * @return void
-	 */
-	public static function addVendorStyle($application, $file = null, $prepend = false) {
-		$path = OC_Util::generatePath($application, 'vendor', $file);
-		self::addExternalResource($application, $prepend, $path, "style");
-	}
-
-	/**
-	 * add an external resource css/js file
-	 *
-	 * @param string $application application id
-	 * @param bool $prepend prepend the file to the beginning of the list
-	 * @param string $path
-	 * @param string $type (script or style)
-	 * @return void
-	 */
-	private static function addExternalResource($application, $prepend, $path, $type = "script") {
-
-		if ($type === "style") {
-			if (!in_array($path, self::$styles)) {
-				if ($prepend === true) {
-					array_unshift ( self::$styles, $path );
-				} else {
-					self::$styles[] = $path;
-				}
-			}
-		} elseif ($type === "script") {
-			if (!in_array($path, self::$scripts)) {
-				if ($prepend === true) {
-					array_unshift ( self::$scripts, $path );
-				} else {
-					self::$scripts [] = $path;
-				}
-			}
-		}
-	}
-
-	/**
-	 * Add a custom element to the header
-	 * If $text is null then the element will be written as empty element.
-	 * So use "" to get a closing tag.
-	 * @param string $tag tag name of the element
-	 * @param array $attributes array of attributes for the element
-	 * @param string $text the text content for the element
-	 */
-	public static function addHeader($tag, $attributes, $text=null) {
-		self::$headers[] = array(
-			'tag' => $tag,
-			'attributes' => $attributes,
-			'text' => $text
-		);
-	}
-
-	/**
-	 * check if the current server configuration is suitable for ownCloud
-	 *
-	 * @param \OC\SystemConfig $config
-	 * @return array arrays with error messages and hints
-	 */
-	public static function checkServer(\OC\SystemConfig $config) {
-		$l = \OC::$server->getL10N('lib');
-		$errors = array();
-		$CONFIG_DATADIRECTORY = $config->getValue('datadirectory', OC::$SERVERROOT . '/data');
-
-		if (!self::needUpgrade($config) && $config->getValue('installed', false)) {
-			// this check needs to be done every time
-			$errors = self::checkDataDirectoryValidity($CONFIG_DATADIRECTORY);
-		}
-
-		// Assume that if checkServer() succeeded before in this session, then all is fine.
-		if (\OC::$server->getSession()->exists('checkServer_succeeded') && \OC::$server->getSession()->get('checkServer_succeeded')) {
-			return $errors;
-		}
-
-		$webServerRestart = false;
-		$setup = new \OC\Setup(
-			$config,
-			\OC::$server->getIniWrapper(),
-			\OC::$server->getL10N('lib'),
-			\OC::$server->query(\OCP\Defaults::class),
-			\OC::$server->getLogger(),
-			\OC::$server->getSecureRandom(),
-			\OC::$server->query(\OC\Installer::class)
-		);
-
-		$urlGenerator = \OC::$server->getURLGenerator();
-
-		$availableDatabases = $setup->getSupportedDatabases();
-		if (empty($availableDatabases)) {
-			$errors[] = array(
-				'error' => $l->t('No database drivers (sqlite, mysql, or postgresql) installed.'),
-				'hint' => '' //TODO: sane hint
-			);
-			$webServerRestart = true;
-		}
-
-		// Check if config folder is writable.
-		if(!OC_Helper::isReadOnlyConfigEnabled()) {
-			if (!is_writable(OC::$configDir) or !is_readable(OC::$configDir)) {
-				$errors[] = array(
-					'error' => $l->t('Cannot write into "config" directory'),
-					'hint' => $l->t('This can usually be fixed by giving the webserver write access to the config directory. See %s',
-						[$urlGenerator->linkToDocs('admin-dir_permissions')])
-				);
-			}
-		}
-
-		// Check if there is a writable install folder.
-		if ($config->getValue('appstoreenabled', true)) {
-			if (OC_App::getInstallPath() === null
-				|| !is_writable(OC_App::getInstallPath())
-				|| !is_readable(OC_App::getInstallPath())
-			) {
-				$errors[] = array(
-					'error' => $l->t('Cannot write into "apps" directory'),
-					'hint' => $l->t('This can usually be fixed by giving the webserver write access to the apps directory'
-						. ' or disabling the appstore in the config file. See %s',
-						[$urlGenerator->linkToDocs('admin-dir_permissions')])
-				);
-			}
-		}
-		// Create root dir.
-		if ($config->getValue('installed', false)) {
-			if (!is_dir($CONFIG_DATADIRECTORY)) {
-				$success = @mkdir($CONFIG_DATADIRECTORY);
-				if ($success) {
-					$errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
-				} else {
-					$errors[] = [
-						'error' => $l->t('Cannot create "data" directory'),
-						'hint' => $l->t('This can usually be fixed by giving the webserver write access to the root directory. See %s',
-							[$urlGenerator->linkToDocs('admin-dir_permissions')])
-					];
-				}
-			} else if (!is_writable($CONFIG_DATADIRECTORY) or !is_readable($CONFIG_DATADIRECTORY)) {
-				//common hint for all file permissions error messages
-				$permissionsHint = $l->t('Permissions can usually be fixed by giving the webserver write access to the root directory. See %s.',
-					[$urlGenerator->linkToDocs('admin-dir_permissions')]);
-				$errors[] = [
-					'error' => 'Your data directory is not writable',
-					'hint' => $permissionsHint
-				];
-			} else {
-				$errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
-			}
-		}
-
-		if (!OC_Util::isSetLocaleWorking()) {
-			$errors[] = array(
-				'error' => $l->t('Setting locale to %s failed',
-					array('en_US.UTF-8/fr_FR.UTF-8/es_ES.UTF-8/de_DE.UTF-8/ru_RU.UTF-8/'
-						. 'pt_BR.UTF-8/it_IT.UTF-8/ja_JP.UTF-8/zh_CN.UTF-8')),
-				'hint' => $l->t('Please install one of these locales on your system and restart your webserver.')
-			);
-		}
-
-		// Contains the dependencies that should be checked against
-		// classes = class_exists
-		// functions = function_exists
-		// defined = defined
-		// ini = ini_get
-		// If the dependency is not found the missing module name is shown to the EndUser
-		// When adding new checks always verify that they pass on Travis as well
-		// for ini settings, see https://github.com/owncloud/administration/blob/master/travis-ci/custom.ini
-		$dependencies = array(
-			'classes' => array(
-				'ZipArchive' => 'zip',
-				'DOMDocument' => 'dom',
-				'XMLWriter' => 'XMLWriter',
-				'XMLReader' => 'XMLReader',
-			),
-			'functions' => [
-				'xml_parser_create' => 'libxml',
-				'mb_strcut' => 'mb multibyte',
-				'ctype_digit' => 'ctype',
-				'json_encode' => 'JSON',
-				'gd_info' => 'GD',
-				'gzencode' => 'zlib',
-				'iconv' => 'iconv',
-				'simplexml_load_string' => 'SimpleXML',
-				'hash' => 'HASH Message Digest Framework',
-				'curl_init' => 'cURL',
-				'openssl_verify' => 'OpenSSL',
-			],
-			'defined' => array(
-				'PDO::ATTR_DRIVER_NAME' => 'PDO'
-			),
-			'ini' => [
-				'default_charset' => 'UTF-8',
-			],
-		);
-		$missingDependencies = array();
-		$invalidIniSettings = [];
-		$moduleHint = $l->t('Please ask your server administrator to install the module.');
-
-		/**
-		 * FIXME: The dependency check does not work properly on HHVM on the moment
-		 *        and prevents installation. Once HHVM is more compatible with our
-		 *        approach to check for these values we should re-enable those
-		 *        checks.
-		 */
-		$iniWrapper = \OC::$server->getIniWrapper();
-		if (!self::runningOnHhvm()) {
-			foreach ($dependencies['classes'] as $class => $module) {
-				if (!class_exists($class)) {
-					$missingDependencies[] = $module;
-				}
-			}
-			foreach ($dependencies['functions'] as $function => $module) {
-				if (!function_exists($function)) {
-					$missingDependencies[] = $module;
-				}
-			}
-			foreach ($dependencies['defined'] as $defined => $module) {
-				if (!defined($defined)) {
-					$missingDependencies[] = $module;
-				}
-			}
-			foreach ($dependencies['ini'] as $setting => $expected) {
-				if (is_bool($expected)) {
-					if ($iniWrapper->getBool($setting) !== $expected) {
-						$invalidIniSettings[] = [$setting, $expected];
-					}
-				}
-				if (is_int($expected)) {
-					if ($iniWrapper->getNumeric($setting) !== $expected) {
-						$invalidIniSettings[] = [$setting, $expected];
-					}
-				}
-				if (is_string($expected)) {
-					if (strtolower($iniWrapper->getString($setting)) !== strtolower($expected)) {
-						$invalidIniSettings[] = [$setting, $expected];
-					}
-				}
-			}
-		}
-
-		foreach($missingDependencies as $missingDependency) {
-			$errors[] = array(
-				'error' => $l->t('PHP module %s not installed.', array($missingDependency)),
-				'hint' => $moduleHint
-			);
-			$webServerRestart = true;
-		}
-		foreach($invalidIniSettings as $setting) {
-			if(is_bool($setting[1])) {
-				$setting[1] = $setting[1] ? 'on' : 'off';
-			}
-			$errors[] = [
-				'error' => $l->t('PHP setting "%s" is not set to "%s".', [$setting[0], var_export($setting[1], true)]),
-				'hint' =>  $l->t('Adjusting this setting in php.ini will make Nextcloud run again')
-			];
-			$webServerRestart = true;
-		}
-
-		/**
-		 * The mbstring.func_overload check can only be performed if the mbstring
-		 * module is installed as it will return null if the checking setting is
-		 * not available and thus a check on the boolean value fails.
-		 *
-		 * TODO: Should probably be implemented in the above generic dependency
-		 *       check somehow in the long-term.
-		 */
-		if($iniWrapper->getBool('mbstring.func_overload') !== null &&
-			$iniWrapper->getBool('mbstring.func_overload') === true) {
-			$errors[] = array(
-				'error' => $l->t('mbstring.func_overload is set to "%s" instead of the expected value "0"', [$iniWrapper->getString('mbstring.func_overload')]),
-				'hint' => $l->t('To fix this issue set <code>mbstring.func_overload</code> to <code>0</code> in your php.ini')
-			);
-		}
-
-		if(function_exists('xml_parser_create') &&
-			LIBXML_LOADED_VERSION < 20700 ) {
-			$version = LIBXML_LOADED_VERSION;
-			$major = floor($version/10000);
-			$version -= ($major * 10000);
-			$minor = floor($version/100);
-			$version -= ($minor * 100);
-			$patch = $version;
-			$errors[] = array(
-				'error' => $l->t('libxml2 2.7.0 is at least required. Currently %s is installed.', [$major . '.' . $minor . '.' . $patch]),
-				'hint' => $l->t('To fix this issue update your libxml2 version and restart your web server.')
-			);
-		}
-
-		if (!self::isAnnotationsWorking()) {
-			$errors[] = array(
-				'error' => $l->t('PHP is apparently set up to strip inline doc blocks. This will make several core apps inaccessible.'),
-				'hint' => $l->t('This is probably caused by a cache/accelerator such as Zend OPcache or eAccelerator.')
-			);
-		}
-
-		if (!\OC::$CLI && $webServerRestart) {
-			$errors[] = array(
-				'error' => $l->t('PHP modules have been installed, but they are still listed as missing?'),
-				'hint' => $l->t('Please ask your server administrator to restart the web server.')
-			);
-		}
-
-		$errors = array_merge($errors, self::checkDatabaseVersion());
-
-		// Cache the result of this function
-		\OC::$server->getSession()->set('checkServer_succeeded', count($errors) == 0);
-
-		return $errors;
-	}
-
-	/**
-	 * Check the database version
-	 *
-	 * @return array errors array
-	 */
-	public static function checkDatabaseVersion() {
-		$l = \OC::$server->getL10N('lib');
-		$errors = array();
-		$dbType = \OC::$server->getSystemConfig()->getValue('dbtype', 'sqlite');
-		if ($dbType === 'pgsql') {
-			// check PostgreSQL version
-			try {
-				$result = \OC_DB::executeAudited('SHOW SERVER_VERSION');
-				$data = $result->fetchRow();
-				if (isset($data['server_version'])) {
-					$version = $data['server_version'];
-					if (version_compare($version, '9.0.0', '<')) {
-						$errors[] = array(
-							'error' => $l->t('PostgreSQL >= 9 required'),
-							'hint' => $l->t('Please upgrade your database version')
-						);
-					}
-				}
-			} catch (\Doctrine\DBAL\DBALException $e) {
-				$logger = \OC::$server->getLogger();
-				$logger->warning('Error occurred while checking PostgreSQL version, assuming >= 9');
-				$logger->logException($e);
-			}
-		}
-		return $errors;
-	}
-
-	/**
-	 * Check for correct file permissions of data directory
-	 *
-	 * @param string $dataDirectory
-	 * @return array arrays with error messages and hints
-	 */
-	public static function checkDataDirectoryPermissions($dataDirectory) {
-		if(\OC::$server->getConfig()->getSystemValue('check_data_directory_permissions', true) === false) {
-			return  [];
-		}
-		$l = \OC::$server->getL10N('lib');
-		$errors = [];
-		$permissionsModHint = $l->t('Please change the permissions to 0770 so that the directory'
-			. ' cannot be listed by other users.');
-		$perms = substr(decoct(@fileperms($dataDirectory)), -3);
-		if (substr($perms, -1) !== '0') {
-			chmod($dataDirectory, 0770);
-			clearstatcache();
-			$perms = substr(decoct(@fileperms($dataDirectory)), -3);
-			if ($perms[2] !== '0') {
-				$errors[] = [
-					'error' => $l->t('Your data directory is readable by other users'),
-					'hint' => $permissionsModHint
-				];
-			}
-		}
-		return $errors;
-	}
-
-	/**
-	 * Check that the data directory exists and is valid by
-	 * checking the existence of the ".ocdata" file.
-	 *
-	 * @param string $dataDirectory data directory path
-	 * @return array errors found
-	 */
-	public static function checkDataDirectoryValidity($dataDirectory) {
-		$l = \OC::$server->getL10N('lib');
-		$errors = [];
-		if ($dataDirectory[0] !== '/') {
-			$errors[] = [
-				'error' => $l->t('Your data directory must be an absolute path'),
-				'hint' => $l->t('Check the value of "datadirectory" in your configuration')
-			];
-		}
-		if (!file_exists($dataDirectory . '/.ocdata')) {
-			$errors[] = [
-				'error' => $l->t('Your data directory is invalid'),
-				'hint' => $l->t('Ensure there is a file called ".ocdata"' .
-					' in the root of the data directory.')
-			];
-		}
-		return $errors;
-	}
-
-	/**
-	 * Check if the user is logged in, redirects to home if not. With
-	 * redirect URL parameter to the request URI.
-	 *
-	 * @return void
-	 */
-	public static function checkLoggedIn() {
-		// Check if we are a user
-		if (!\OC::$server->getUserSession()->isLoggedIn()) {
-			header('Location: ' . \OC::$server->getURLGenerator()->linkToRoute(
-						'core.login.showLoginForm',
-						[
-							'redirect_url' => \OC::$server->getRequest()->getRequestUri(),
-						]
-					)
-			);
-			exit();
-		}
-		// Redirect to 2FA challenge selection if 2FA challenge was not solved yet
-		if (\OC::$server->getTwoFactorAuthManager()->needsSecondFactor(\OC::$server->getUserSession()->getUser())) {
-			header('Location: ' . \OC::$server->getURLGenerator()->linkToRoute('core.TwoFactorChallenge.selectChallenge'));
-			exit();
-		}
-	}
-
-	/**
-	 * Check if the user is a admin, redirects to home if not
-	 *
-	 * @return void
-	 */
-	public static function checkAdminUser() {
-		OC_Util::checkLoggedIn();
-		if (!OC_User::isAdminUser(OC_User::getUser())) {
-			header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
-			exit();
-		}
-	}
-
-	/**
-	 * Check if the user is a subadmin, redirects to home if not
-	 *
-	 * @return null|boolean $groups where the current user is subadmin
-	 */
-	public static function checkSubAdminUser() {
-		OC_Util::checkLoggedIn();
-		$userObject = \OC::$server->getUserSession()->getUser();
-		$isSubAdmin = false;
-		if($userObject !== null) {
-			$isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
-		}
-
-		if (!$isSubAdmin) {
-			header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
-			exit();
-		}
-		return true;
-	}
-
-	/**
-	 * Returns the URL of the default page
-	 * based on the system configuration and
-	 * the apps visible for the current user
-	 *
-	 * @return string URL
-	 * @suppress PhanDeprecatedFunction
-	 */
-	public static function getDefaultPageUrl() {
-		$urlGenerator = \OC::$server->getURLGenerator();
-		// Deny the redirect if the URL contains a @
-		// This prevents unvalidated redirects like ?redirect_url=:user@domain.com
-		if (isset($_REQUEST['redirect_url']) && strpos($_REQUEST['redirect_url'], '@') === false) {
-			$location = $urlGenerator->getAbsoluteURL(urldecode($_REQUEST['redirect_url']));
-		} else {
-			$defaultPage = \OC::$server->getConfig()->getAppValue('core', 'defaultpage');
-			if ($defaultPage) {
-				$location = $urlGenerator->getAbsoluteURL($defaultPage);
-			} else {
-				$appId = 'files';
-				$config = \OC::$server->getConfig();
-				$defaultApps = explode(',', $config->getSystemValue('defaultapp', 'files'));
-				// find the first app that is enabled for the current user
-				foreach ($defaultApps as $defaultApp) {
-					$defaultApp = OC_App::cleanAppId(strip_tags($defaultApp));
-					if (static::getAppManager()->isEnabledForUser($defaultApp)) {
-						$appId = $defaultApp;
-						break;
-					}
-				}
-
-				if($config->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true') {
-					$location = $urlGenerator->getAbsoluteURL('/apps/' . $appId . '/');
-				} else {
-					$location = $urlGenerator->getAbsoluteURL('/index.php/apps/' . $appId . '/');
-				}
-			}
-		}
-		return $location;
-	}
-
-	/**
-	 * Redirect to the user default page
-	 *
-	 * @return void
-	 */
-	public static function redirectToDefaultPage() {
-		$location = self::getDefaultPageUrl();
-		header('Location: ' . $location);
-		exit();
-	}
-
-	/**
-	 * get an id unique for this instance
-	 *
-	 * @return string
-	 */
-	public static function getInstanceId() {
-		$id = \OC::$server->getSystemConfig()->getValue('instanceid', null);
-		if (is_null($id)) {
-			// We need to guarantee at least one letter in instanceid so it can be used as the session_name
-			$id = 'oc' . \OC::$server->getSecureRandom()->generate(10, \OCP\Security\ISecureRandom::CHAR_LOWER.\OCP\Security\ISecureRandom::CHAR_DIGITS);
-			\OC::$server->getSystemConfig()->setValue('instanceid', $id);
-		}
-		return $id;
-	}
-
-	/**
-	 * Public function to sanitize HTML
-	 *
-	 * This function is used to sanitize HTML and should be applied on any
-	 * string or array of strings before displaying it on a web page.
-	 *
-	 * @param string|array $value
-	 * @return string|array an array of sanitized strings or a single sanitized string, depends on the input parameter.
-	 */
-	public static function sanitizeHTML($value) {
-		if (is_array($value)) {
-			$value = array_map(function($value) {
-				return self::sanitizeHTML($value);
-			}, $value);
-		} else {
-			// Specify encoding for PHP<5.4
-			$value = htmlspecialchars((string)$value, ENT_QUOTES, 'UTF-8');
-		}
-		return $value;
-	}
-
-	/**
-	 * Public function to encode url parameters
-	 *
-	 * This function is used to encode path to file before output.
-	 * Encoding is done according to RFC 3986 with one exception:
-	 * Character '/' is preserved as is.
-	 *
-	 * @param string $component part of URI to encode
-	 * @return string
-	 */
-	public static function encodePath($component) {
-		$encoded = rawurlencode($component);
-		$encoded = str_replace('%2F', '/', $encoded);
-		return $encoded;
-	}
-
-
-	public function createHtaccessTestFile(\OCP\IConfig $config) {
-		// php dev server does not support htaccess
-		if (php_sapi_name() === 'cli-server') {
-			return false;
-		}
-
-		// testdata
-		$fileName = '/htaccesstest.txt';
-		$testContent = 'This is used for testing whether htaccess is properly enabled to disallow access from the outside. This file can be safely removed.';
-
-		// creating a test file
-		$testFile = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $fileName;
-
-		if (file_exists($testFile)) {// already running this test, possible recursive call
-			return false;
-		}
-
-		$fp = @fopen($testFile, 'w');
-		if (!$fp) {
-			throw new OC\HintException('Can\'t create test file to check for working .htaccess file.',
-				'Make sure it is possible for the webserver to write to ' . $testFile);
-		}
-		fwrite($fp, $testContent);
-		fclose($fp);
-
-		return $testContent;
-	}
-
-	/**
-	 * Check if the .htaccess file is working
-	 * @param \OCP\IConfig $config
-	 * @return bool
-	 * @throws Exception
-	 * @throws \OC\HintException If the test file can't get written.
-	 */
-	public function isHtaccessWorking(\OCP\IConfig $config) {
-
-		if (\OC::$CLI || !$config->getSystemValue('check_for_working_htaccess', true)) {
-			return true;
-		}
-
-		$testContent = $this->createHtaccessTestFile($config);
-		if ($testContent === false) {
-			return false;
-		}
-
-		$fileName = '/htaccesstest.txt';
-		$testFile = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $fileName;
-
-		// accessing the file via http
-		$url = \OC::$server->getURLGenerator()->getAbsoluteURL(OC::$WEBROOT . '/data' . $fileName);
-		try {
-			$content = \OC::$server->getHTTPClientService()->newClient()->get($url)->getBody();
-		} catch (\Exception $e) {
-			$content = false;
-		}
-
-		// cleanup
-		@unlink($testFile);
-
-		/*
+    public static $scripts = array();
+    public static $styles = array();
+    public static $headers = array();
+    private static $rootMounted = false;
+    private static $fsSetup = false;
+
+    /** @var array Local cache of version.php */
+    private static $versionCache = null;
+
+    protected static function getAppManager() {
+        return \OC::$server->getAppManager();
+    }
+
+    private static function initLocalStorageRootFS() {
+        // mount local file backend as root
+        $configDataDirectory = \OC::$server->getSystemConfig()->getValue("datadirectory", OC::$SERVERROOT . "/data");
+        //first set up the local "root" storage
+        \OC\Files\Filesystem::initMountManager();
+        if (!self::$rootMounted) {
+            \OC\Files\Filesystem::mount('\OC\Files\Storage\Local', array('datadir' => $configDataDirectory), '/');
+            self::$rootMounted = true;
+        }
+    }
+
+    /**
+     * mounting an object storage as the root fs will in essence remove the
+     * necessity of a data folder being present.
+     * TODO make home storage aware of this and use the object storage instead of local disk access
+     *
+     * @param array $config containing 'class' and optional 'arguments'
+     * @suppress PhanDeprecatedFunction
+     */
+    private static function initObjectStoreRootFS($config) {
+        // check misconfiguration
+        if (empty($config['class'])) {
+            \OCP\Util::writeLog('files', 'No class given for objectstore', ILogger::ERROR);
+        }
+        if (!isset($config['arguments'])) {
+            $config['arguments'] = array();
+        }
+
+        // instantiate object store implementation
+        $name = $config['class'];
+        if (strpos($name, 'OCA\\') === 0 && substr_count($name, '\\') >= 2) {
+            $segments = explode('\\', $name);
+            OC_App::loadApp(strtolower($segments[1]));
+        }
+        $config['arguments']['objectstore'] = new $config['class']($config['arguments']);
+        // mount with plain / root object store implementation
+        $config['class'] = '\OC\Files\ObjectStore\ObjectStoreStorage';
+
+        // mount object storage as root
+        \OC\Files\Filesystem::initMountManager();
+        if (!self::$rootMounted) {
+            \OC\Files\Filesystem::mount($config['class'], $config['arguments'], '/');
+            self::$rootMounted = true;
+        }
+    }
+
+    /**
+     * mounting an object storage as the root fs will in essence remove the
+     * necessity of a data folder being present.
+     *
+     * @param array $config containing 'class' and optional 'arguments'
+     * @suppress PhanDeprecatedFunction
+     */
+    private static function initObjectStoreMultibucketRootFS($config) {
+        // check misconfiguration
+        if (empty($config['class'])) {
+            \OCP\Util::writeLog('files', 'No class given for objectstore', ILogger::ERROR);
+        }
+        if (!isset($config['arguments'])) {
+            $config['arguments'] = array();
+        }
+
+        // instantiate object store implementation
+        $name = $config['class'];
+        if (strpos($name, 'OCA\\') === 0 && substr_count($name, '\\') >= 2) {
+            $segments = explode('\\', $name);
+            OC_App::loadApp(strtolower($segments[1]));
+        }
+
+        if (!isset($config['arguments']['bucket'])) {
+            $config['arguments']['bucket'] = '';
+        }
+        // put the root FS always in first bucket for multibucket configuration
+        $config['arguments']['bucket'] .= '0';
+
+        $config['arguments']['objectstore'] = new $config['class']($config['arguments']);
+        // mount with plain / root object store implementation
+        $config['class'] = '\OC\Files\ObjectStore\ObjectStoreStorage';
+
+        // mount object storage as root
+        \OC\Files\Filesystem::initMountManager();
+        if (!self::$rootMounted) {
+            \OC\Files\Filesystem::mount($config['class'], $config['arguments'], '/');
+            self::$rootMounted = true;
+        }
+    }
+
+    /**
+     * Can be set up
+     *
+     * @param string $user
+     * @return boolean
+     * @description configure the initial filesystem based on the configuration
+     * @suppress PhanDeprecatedFunction
+     * @suppress PhanAccessMethodInternal
+     */
+    public static function setupFS($user = '') {
+        //setting up the filesystem twice can only lead to trouble
+        if (self::$fsSetup) {
+            return false;
+        }
+
+        \OC::$server->getEventLogger()->start('setup_fs', 'Setup filesystem');
+
+        // If we are not forced to load a specific user we load the one that is logged in
+        if ($user === null) {
+            $user = '';
+        } else if ($user == "" && \OC::$server->getUserSession()->isLoggedIn()) {
+            $user = OC_User::getUser();
+        }
+
+        // load all filesystem apps before, so no setup-hook gets lost
+        OC_App::loadApps(array('filesystem'));
+
+        // the filesystem will finish when $user is not empty,
+        // mark fs setup here to avoid doing the setup from loading
+        // OC_Filesystem
+        if ($user != '') {
+            self::$fsSetup = true;
+        }
+
+        \OC\Files\Filesystem::initMountManager();
+
+        \OC\Files\Filesystem::logWarningWhenAddingStorageWrapper(false);
+        \OC\Files\Filesystem::addStorageWrapper('mount_options', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
+            if ($storage->instanceOfStorage('\OC\Files\Storage\Common')) {
+                /** @var \OC\Files\Storage\Common $storage */
+                $storage->setMountOptions($mount->getOptions());
+            }
+            return $storage;
+        });
+
+        \OC\Files\Filesystem::addStorageWrapper('enable_sharing', function ($mountPoint, \OCP\Files\Storage\IStorage $storage, \OCP\Files\Mount\IMountPoint $mount) {
+            if (!$mount->getOption('enable_sharing', true)) {
+                return new \OC\Files\Storage\Wrapper\PermissionsMask([
+                    'storage' => $storage,
+                    'mask' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_SHARE
+                ]);
+            }
+            return $storage;
+        });
+
+        // install storage availability wrapper, before most other wrappers
+        \OC\Files\Filesystem::addStorageWrapper('oc_availability', function ($mountPoint, \OCP\Files\Storage\IStorage $storage) {
+            if (!$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
+                return new \OC\Files\Storage\Wrapper\Availability(['storage' => $storage]);
+            }
+            return $storage;
+        });
+
+        \OC\Files\Filesystem::addStorageWrapper('oc_encoding', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
+            if ($mount->getOption('encoding_compatibility', false) && !$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
+                return new \OC\Files\Storage\Wrapper\Encoding(['storage' => $storage]);
+            }
+            return $storage;
+        });
+
+        \OC\Files\Filesystem::addStorageWrapper('oc_quota', function ($mountPoint, $storage) {
+            // set up quota for home storages, even for other users
+            // which can happen when using sharing
+
+            /**
+             * @var \OC\Files\Storage\Storage $storage
+             */
+            if ($storage->instanceOfStorage('\OC\Files\Storage\Home')
+                || $storage->instanceOfStorage('\OC\Files\ObjectStore\HomeObjectStoreStorage')
+            ) {
+                /** @var \OC\Files\Storage\Home $storage */
+                if (is_object($storage->getUser())) {
+                    $user = $storage->getUser()->getUID();
+                    $quota = OC_Util::getUserQuota($user);
+                    if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) {
+                        return new \OC\Files\Storage\Wrapper\Quota(array('storage' => $storage, 'quota' => $quota, 'root' => 'files'));
+                    }
+                }
+            }
+
+            return $storage;
+        });
+
+        OC_Hook::emit('OC_Filesystem', 'preSetup', array('user' => $user));
+        \OC\Files\Filesystem::logWarningWhenAddingStorageWrapper(true);
+
+        //check if we are using an object storage
+        $objectStore = \OC::$server->getSystemConfig()->getValue('objectstore', null);
+        $objectStoreMultibucket = \OC::$server->getSystemConfig()->getValue('objectstore_multibucket', null);
+
+        // use the same order as in ObjectHomeMountProvider
+        if (isset($objectStoreMultibucket)) {
+            self::initObjectStoreMultibucketRootFS($objectStoreMultibucket);
+        } elseif (isset($objectStore)) {
+            self::initObjectStoreRootFS($objectStore);
+        } else {
+            self::initLocalStorageRootFS();
+        }
+
+        if ($user != '' && !\OC::$server->getUserManager()->userExists($user)) {
+            \OC::$server->getEventLogger()->end('setup_fs');
+            return false;
+        }
+
+        //if we aren't logged in, there is no use to set up the filesystem
+        if ($user != "") {
+
+            $userDir = '/' . $user . '/files';
+
+            //jail the user into his "home" directory
+            \OC\Files\Filesystem::init($user, $userDir);
+
+            OC_Hook::emit('OC_Filesystem', 'setup', array('user' => $user, 'user_dir' => $userDir));
+        }
+        \OC::$server->getEventLogger()->end('setup_fs');
+        return true;
+    }
+
+    /**
+     * check if a password is required for each public link
+     *
+     * @return boolean
+     * @suppress PhanDeprecatedFunction
+     */
+    public static function isPublicLinkPasswordRequired() {
+        $enforcePassword = \OC::$server->getConfig()->getAppValue('core', 'shareapi_enforce_links_password', 'no');
+        return $enforcePassword === 'yes';
+    }
+
+    /**
+     * check if sharing is disabled for the current user
+     * @param IConfig $config
+     * @param IGroupManager $groupManager
+     * @param IUser|null $user
+     * @return bool
+     */
+    public static function isSharingDisabledForUser(IConfig $config, IGroupManager $groupManager, $user) {
+        if ($config->getAppValue('core', 'shareapi_exclude_groups', 'no') === 'yes') {
+            $groupsList = $config->getAppValue('core', 'shareapi_exclude_groups_list', '');
+            $excludedGroups = json_decode($groupsList);
+            if (is_null($excludedGroups)) {
+                $excludedGroups = explode(',', $groupsList);
+                $newValue = json_encode($excludedGroups);
+                $config->setAppValue('core', 'shareapi_exclude_groups_list', $newValue);
+            }
+            $usersGroups = $groupManager->getUserGroupIds($user);
+            if (!empty($usersGroups)) {
+                $remainingGroups = array_diff($usersGroups, $excludedGroups);
+                // if the user is only in groups which are disabled for sharing then
+                // sharing is also disabled for the user
+                if (empty($remainingGroups)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * check if share API enforces a default expire date
+     *
+     * @return boolean
+     * @suppress PhanDeprecatedFunction
+     */
+    public static function isDefaultExpireDateEnforced() {
+        $isDefaultExpireDateEnabled = \OC::$server->getConfig()->getAppValue('core', 'shareapi_default_expire_date', 'no');
+        $enforceDefaultExpireDate = false;
+        if ($isDefaultExpireDateEnabled === 'yes') {
+            $value = \OC::$server->getConfig()->getAppValue('core', 'shareapi_enforce_expire_date', 'no');
+            $enforceDefaultExpireDate = $value === 'yes';
+        }
+
+        return $enforceDefaultExpireDate;
+    }
+
+    /**
+     * Get the quota of a user
+     *
+     * @param string $userId
+     * @return float Quota bytes
+     */
+    public static function getUserQuota($userId) {
+        $user = \OC::$server->getUserManager()->get($userId);
+        if (is_null($user)) {
+            return \OCP\Files\FileInfo::SPACE_UNLIMITED;
+        }
+        $userQuota = $user->getQuota();
+        if($userQuota === 'none') {
+            return \OCP\Files\FileInfo::SPACE_UNLIMITED;
+        }
+        return OC_Helper::computerFileSize($userQuota);
+    }
+
+    /**
+     * copies the skeleton to the users /files
+     *
+     * @param String $userId
+     * @param \OCP\Files\Folder $userDirectory
+     * @throws \RuntimeException
+     * @suppress PhanDeprecatedFunction
+     */
+    public static function copySkeleton($userId, \OCP\Files\Folder $userDirectory) {
+
+        $plainSkeletonDirectory = \OC::$server->getConfig()->getSystemValue('skeletondirectory', \OC::$SERVERROOT . '/core/skeleton');
+        $userLang = \OC::$server->getL10NFactory()->findLanguage();
+        $skeletonDirectory = str_replace('{lang}', $userLang, $plainSkeletonDirectory);
+
+        if (!file_exists($skeletonDirectory)) {
+            $dialectStart = strpos($userLang, '_');
+            if ($dialectStart !== false) {
+                $skeletonDirectory = str_replace('{lang}', substr($userLang, 0, $dialectStart), $plainSkeletonDirectory);
+            }
+            if ($dialectStart === false || !file_exists($skeletonDirectory)) {
+                $skeletonDirectory = str_replace('{lang}', 'default', $plainSkeletonDirectory);
+            }
+            if (!file_exists($skeletonDirectory)) {
+                $skeletonDirectory = '';
+            }
+        }
+
+        $instanceId = \OC::$server->getConfig()->getSystemValue('instanceid', '');
+
+        if ($instanceId === null) {
+            throw new \RuntimeException('no instance id!');
+        }
+        $appdata = 'appdata_' . $instanceId;
+        if ($userId === $appdata) {
+            throw new \RuntimeException('username is reserved name: ' . $appdata);
+        }
+
+        if (!empty($skeletonDirectory)) {
+            \OCP\Util::writeLog(
+                'files_skeleton',
+                'copying skeleton for '.$userId.' from '.$skeletonDirectory.' to '.$userDirectory->getFullPath('/'),
+                ILogger::DEBUG
+            );
+            self::copyr($skeletonDirectory, $userDirectory);
+            // update the file cache
+            $userDirectory->getStorage()->getScanner()->scan('', \OC\Files\Cache\Scanner::SCAN_RECURSIVE);
+        }
+    }
+
+    /**
+     * copies a directory recursively by using streams
+     *
+     * @param string $source
+     * @param \OCP\Files\Folder $target
+     * @return void
+     */
+    public static function copyr($source, \OCP\Files\Folder $target) {
+        $logger = \OC::$server->getLogger();
+
+        // Verify if folder exists
+        $dir = opendir($source);
+        if($dir === false) {
+            $logger->error(sprintf('Could not opendir "%s"', $source), ['app' => 'core']);
+            return;
+        }
+
+        // Copy the files
+        while (false !== ($file = readdir($dir))) {
+            if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
+                if (is_dir($source . '/' . $file)) {
+                    $child = $target->newFolder($file);
+                    self::copyr($source . '/' . $file, $child);
+                } else {
+                    $child = $target->newFile($file);
+                    $sourceStream = fopen($source . '/' . $file, 'r');
+                    if($sourceStream === false) {
+                        $logger->error(sprintf('Could not fopen "%s"', $source . '/' . $file), ['app' => 'core']);
+                        closedir($dir);
+                        return;
+                    }
+                    stream_copy_to_stream($sourceStream, $child->fopen('w'));
+                }
+            }
+        }
+        closedir($dir);
+    }
+
+    /**
+     * @return void
+     * @suppress PhanUndeclaredMethod
+     */
+    public static function tearDownFS() {
+        \OC\Files\Filesystem::tearDown();
+        \OC::$server->getRootFolder()->clearCache();
+        self::$fsSetup = false;
+        self::$rootMounted = false;
+    }
+
+    /**
+     * get the current installed version of ownCloud
+     *
+     * @return array
+     */
+    public static function getVersion() {
+        OC_Util::loadVersion();
+        return self::$versionCache['OC_Version'];
+    }
+
+    /**
+     * get the current installed version string of ownCloud
+     *
+     * @return string
+     */
+    public static function getVersionString() {
+        OC_Util::loadVersion();
+        return self::$versionCache['OC_VersionString'];
+    }
+
+    /**
+     * @deprecated the value is of no use anymore
+     * @return string
+     */
+    public static function getEditionString() {
+        return '';
+    }
+
+    /**
+     * @description get the update channel of the current installed of ownCloud.
+     * @return string
+     */
+    public static function getChannel() {
+        OC_Util::loadVersion();
+        return \OC::$server->getConfig()->getSystemValue('updater.release.channel', self::$versionCache['OC_Channel']);
+    }
+
+    /**
+     * @description get the build number of the current installed of ownCloud.
+     * @return string
+     */
+    public static function getBuild() {
+        OC_Util::loadVersion();
+        return self::$versionCache['OC_Build'];
+    }
+
+    /**
+     * @description load the version.php into the session as cache
+     * @suppress PhanUndeclaredVariable
+     */
+    private static function loadVersion() {
+        if (self::$versionCache !== null) {
+            return;
+        }
+
+        $timestamp = filemtime(OC::$SERVERROOT . '/version.php');
+        require OC::$SERVERROOT . '/version.php';
+        /** @var $timestamp int */
+        self::$versionCache['OC_Version_Timestamp'] = $timestamp;
+        /** @var $OC_Version string */
+        self::$versionCache['OC_Version'] = $OC_Version;
+        /** @var $OC_VersionString string */
+        self::$versionCache['OC_VersionString'] = $OC_VersionString;
+        /** @var $OC_Build string */
+        self::$versionCache['OC_Build'] = $OC_Build;
+
+        /** @var $OC_Channel string */
+        self::$versionCache['OC_Channel'] = $OC_Channel;
+    }
+
+    /**
+     * generates a path for JS/CSS files. If no application is provided it will create the path for core.
+     *
+     * @param string $application application to get the files from
+     * @param string $directory directory within this application (css, js, vendor, etc)
+     * @param string $file the file inside of the above folder
+     * @return string the path
+     */
+    private static function generatePath($application, $directory, $file) {
+        if (is_null($file)) {
+            $file = $application;
+            $application = "";
+        }
+        if (!empty($application)) {
+            return "$application/$directory/$file";
+        } else {
+            return "$directory/$file";
+        }
+    }
+
+    /**
+     * add a javascript file
+     *
+     * @param string $application application id
+     * @param string|null $file filename
+     * @param bool $prepend prepend the Script to the beginning of the list
+     * @return void
+     */
+    public static function addScript($application, $file = null, $prepend = false) {
+        $path = OC_Util::generatePath($application, 'js', $file);
+
+        // core js files need separate handling
+        if ($application !== 'core' && $file !== null) {
+            self::addTranslations ( $application );
+        }
+        self::addExternalResource($application, $prepend, $path, "script");
+    }
+
+    /**
+     * add a javascript file from the vendor sub folder
+     *
+     * @param string $application application id
+     * @param string|null $file filename
+     * @param bool $prepend prepend the Script to the beginning of the list
+     * @return void
+     */
+    public static function addVendorScript($application, $file = null, $prepend = false) {
+        $path = OC_Util::generatePath($application, 'vendor', $file);
+        self::addExternalResource($application, $prepend, $path, "script");
+    }
+
+    /**
+     * add a translation JS file
+     *
+     * @param string $application application id
+     * @param string|null $languageCode language code, defaults to the current language
+     * @param bool|null $prepend prepend the Script to the beginning of the list
+     */
+    public static function addTranslations($application, $languageCode = null, $prepend = false) {
+        if (is_null($languageCode)) {
+            $languageCode = \OC::$server->getL10NFactory()->findLanguage($application);
+        }
+        if (!empty($application)) {
+            $path = "$application/l10n/$languageCode";
+        } else {
+            $path = "l10n/$languageCode";
+        }
+        self::addExternalResource($application, $prepend, $path, "script");
+    }
+
+    /**
+     * add a css file
+     *
+     * @param string $application application id
+     * @param string|null $file filename
+     * @param bool $prepend prepend the Style to the beginning of the list
+     * @return void
+     */
+    public static function addStyle($application, $file = null, $prepend = false) {
+        $path = OC_Util::generatePath($application, 'css', $file);
+        self::addExternalResource($application, $prepend, $path, "style");
+    }
+
+    /**
+     * add a css file from the vendor sub folder
+     *
+     * @param string $application application id
+     * @param string|null $file filename
+     * @param bool $prepend prepend the Style to the beginning of the list
+     * @return void
+     */
+    public static function addVendorStyle($application, $file = null, $prepend = false) {
+        $path = OC_Util::generatePath($application, 'vendor', $file);
+        self::addExternalResource($application, $prepend, $path, "style");
+    }
+
+    /**
+     * add an external resource css/js file
+     *
+     * @param string $application application id
+     * @param bool $prepend prepend the file to the beginning of the list
+     * @param string $path
+     * @param string $type (script or style)
+     * @return void
+     */
+    private static function addExternalResource($application, $prepend, $path, $type = "script") {
+
+        if ($type === "style") {
+            if (!in_array($path, self::$styles)) {
+                if ($prepend === true) {
+                    array_unshift ( self::$styles, $path );
+                } else {
+                    self::$styles[] = $path;
+                }
+            }
+        } elseif ($type === "script") {
+            if (!in_array($path, self::$scripts)) {
+                if ($prepend === true) {
+                    array_unshift ( self::$scripts, $path );
+                } else {
+                    self::$scripts [] = $path;
+                }
+            }
+        }
+    }
+
+    /**
+     * Add a custom element to the header
+     * If $text is null then the element will be written as empty element.
+     * So use "" to get a closing tag.
+     * @param string $tag tag name of the element
+     * @param array $attributes array of attributes for the element
+     * @param string $text the text content for the element
+     */
+    public static function addHeader($tag, $attributes, $text=null) {
+        self::$headers[] = array(
+            'tag' => $tag,
+            'attributes' => $attributes,
+            'text' => $text
+        );
+    }
+
+    /**
+     * check if the current server configuration is suitable for ownCloud
+     *
+     * @param \OC\SystemConfig $config
+     * @return array arrays with error messages and hints
+     */
+    public static function checkServer(\OC\SystemConfig $config) {
+        $l = \OC::$server->getL10N('lib');
+        $errors = array();
+        $CONFIG_DATADIRECTORY = $config->getValue('datadirectory', OC::$SERVERROOT . '/data');
+
+        if (!self::needUpgrade($config) && $config->getValue('installed', false)) {
+            // this check needs to be done every time
+            $errors = self::checkDataDirectoryValidity($CONFIG_DATADIRECTORY);
+        }
+
+        // Assume that if checkServer() succeeded before in this session, then all is fine.
+        if (\OC::$server->getSession()->exists('checkServer_succeeded') && \OC::$server->getSession()->get('checkServer_succeeded')) {
+            return $errors;
+        }
+
+        $webServerRestart = false;
+        $setup = new \OC\Setup(
+            $config,
+            \OC::$server->getIniWrapper(),
+            \OC::$server->getL10N('lib'),
+            \OC::$server->query(\OCP\Defaults::class),
+            \OC::$server->getLogger(),
+            \OC::$server->getSecureRandom(),
+            \OC::$server->query(\OC\Installer::class)
+        );
+
+        $urlGenerator = \OC::$server->getURLGenerator();
+
+        $availableDatabases = $setup->getSupportedDatabases();
+        if (empty($availableDatabases)) {
+            $errors[] = array(
+                'error' => $l->t('No database drivers (sqlite, mysql, or postgresql) installed.'),
+                'hint' => '' //TODO: sane hint
+            );
+            $webServerRestart = true;
+        }
+
+        // Check if config folder is writable.
+        if(!OC_Helper::isReadOnlyConfigEnabled()) {
+            if (!is_writable(OC::$configDir) or !is_readable(OC::$configDir)) {
+                $errors[] = array(
+                    'error' => $l->t('Cannot write into "config" directory'),
+                    'hint' => $l->t('This can usually be fixed by giving the webserver write access to the config directory. See %s',
+                        [$urlGenerator->linkToDocs('admin-dir_permissions')])
+                );
+            }
+        }
+
+        // Check if there is a writable install folder.
+        if ($config->getValue('appstoreenabled', true)) {
+            if (OC_App::getInstallPath() === null
+                || !is_writable(OC_App::getInstallPath())
+                || !is_readable(OC_App::getInstallPath())
+            ) {
+                $errors[] = array(
+                    'error' => $l->t('Cannot write into "apps" directory'),
+                    'hint' => $l->t('This can usually be fixed by giving the webserver write access to the apps directory'
+                        . ' or disabling the appstore in the config file. See %s',
+                        [$urlGenerator->linkToDocs('admin-dir_permissions')])
+                );
+            }
+        }
+        // Create root dir.
+        if ($config->getValue('installed', false)) {
+            if (!is_dir($CONFIG_DATADIRECTORY)) {
+                $success = @mkdir($CONFIG_DATADIRECTORY);
+                if ($success) {
+                    $errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
+                } else {
+                    $errors[] = [
+                        'error' => $l->t('Cannot create "data" directory'),
+                        'hint' => $l->t('This can usually be fixed by giving the webserver write access to the root directory. See %s',
+                            [$urlGenerator->linkToDocs('admin-dir_permissions')])
+                    ];
+                }
+            } else if (!is_writable($CONFIG_DATADIRECTORY) or !is_readable($CONFIG_DATADIRECTORY)) {
+                //common hint for all file permissions error messages
+                $permissionsHint = $l->t('Permissions can usually be fixed by giving the webserver write access to the root directory. See %s.',
+                    [$urlGenerator->linkToDocs('admin-dir_permissions')]);
+                $errors[] = [
+                    'error' => 'Your data directory is not writable',
+                    'hint' => $permissionsHint
+                ];
+            } else {
+                $errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
+            }
+        }
+
+        if (!OC_Util::isSetLocaleWorking()) {
+            $errors[] = array(
+                'error' => $l->t('Setting locale to %s failed',
+                    array('en_US.UTF-8/fr_FR.UTF-8/es_ES.UTF-8/de_DE.UTF-8/ru_RU.UTF-8/'
+                        . 'pt_BR.UTF-8/it_IT.UTF-8/ja_JP.UTF-8/zh_CN.UTF-8')),
+                'hint' => $l->t('Please install one of these locales on your system and restart your webserver.')
+            );
+        }
+
+        // Contains the dependencies that should be checked against
+        // classes = class_exists
+        // functions = function_exists
+        // defined = defined
+        // ini = ini_get
+        // If the dependency is not found the missing module name is shown to the EndUser
+        // When adding new checks always verify that they pass on Travis as well
+        // for ini settings, see https://github.com/owncloud/administration/blob/master/travis-ci/custom.ini
+        $dependencies = array(
+            'classes' => array(
+                'ZipArchive' => 'zip',
+                'DOMDocument' => 'dom',
+                'XMLWriter' => 'XMLWriter',
+                'XMLReader' => 'XMLReader',
+            ),
+            'functions' => [
+                'xml_parser_create' => 'libxml',
+                'mb_strcut' => 'mb multibyte',
+                'ctype_digit' => 'ctype',
+                'json_encode' => 'JSON',
+                'gd_info' => 'GD',
+                'gzencode' => 'zlib',
+                'iconv' => 'iconv',
+                'simplexml_load_string' => 'SimpleXML',
+                'hash' => 'HASH Message Digest Framework',
+                'curl_init' => 'cURL',
+                'openssl_verify' => 'OpenSSL',
+            ],
+            'defined' => array(
+                'PDO::ATTR_DRIVER_NAME' => 'PDO'
+            ),
+            'ini' => [
+                'default_charset' => 'UTF-8',
+            ],
+        );
+        $missingDependencies = array();
+        $invalidIniSettings = [];
+        $moduleHint = $l->t('Please ask your server administrator to install the module.');
+
+        /**
+         * FIXME: The dependency check does not work properly on HHVM on the moment
+         *        and prevents installation. Once HHVM is more compatible with our
+         *        approach to check for these values we should re-enable those
+         *        checks.
+         */
+        $iniWrapper = \OC::$server->getIniWrapper();
+        if (!self::runningOnHhvm()) {
+            foreach ($dependencies['classes'] as $class => $module) {
+                if (!class_exists($class)) {
+                    $missingDependencies[] = $module;
+                }
+            }
+            foreach ($dependencies['functions'] as $function => $module) {
+                if (!function_exists($function)) {
+                    $missingDependencies[] = $module;
+                }
+            }
+            foreach ($dependencies['defined'] as $defined => $module) {
+                if (!defined($defined)) {
+                    $missingDependencies[] = $module;
+                }
+            }
+            foreach ($dependencies['ini'] as $setting => $expected) {
+                if (is_bool($expected)) {
+                    if ($iniWrapper->getBool($setting) !== $expected) {
+                        $invalidIniSettings[] = [$setting, $expected];
+                    }
+                }
+                if (is_int($expected)) {
+                    if ($iniWrapper->getNumeric($setting) !== $expected) {
+                        $invalidIniSettings[] = [$setting, $expected];
+                    }
+                }
+                if (is_string($expected)) {
+                    if (strtolower($iniWrapper->getString($setting)) !== strtolower($expected)) {
+                        $invalidIniSettings[] = [$setting, $expected];
+                    }
+                }
+            }
+        }
+
+        foreach($missingDependencies as $missingDependency) {
+            $errors[] = array(
+                'error' => $l->t('PHP module %s not installed.', array($missingDependency)),
+                'hint' => $moduleHint
+            );
+            $webServerRestart = true;
+        }
+        foreach($invalidIniSettings as $setting) {
+            if(is_bool($setting[1])) {
+                $setting[1] = $setting[1] ? 'on' : 'off';
+            }
+            $errors[] = [
+                'error' => $l->t('PHP setting "%s" is not set to "%s".', [$setting[0], var_export($setting[1], true)]),
+                'hint' =>  $l->t('Adjusting this setting in php.ini will make Nextcloud run again')
+            ];
+            $webServerRestart = true;
+        }
+
+        /**
+         * The mbstring.func_overload check can only be performed if the mbstring
+         * module is installed as it will return null if the checking setting is
+         * not available and thus a check on the boolean value fails.
+         *
+         * TODO: Should probably be implemented in the above generic dependency
+         *       check somehow in the long-term.
+         */
+        if($iniWrapper->getBool('mbstring.func_overload') !== null &&
+            $iniWrapper->getBool('mbstring.func_overload') === true) {
+            $errors[] = array(
+                'error' => $l->t('mbstring.func_overload is set to "%s" instead of the expected value "0"', [$iniWrapper->getString('mbstring.func_overload')]),
+                'hint' => $l->t('To fix this issue set <code>mbstring.func_overload</code> to <code>0</code> in your php.ini')
+            );
+        }
+
+        if(function_exists('xml_parser_create') &&
+            LIBXML_LOADED_VERSION < 20700 ) {
+            $version = LIBXML_LOADED_VERSION;
+            $major = floor($version/10000);
+            $version -= ($major * 10000);
+            $minor = floor($version/100);
+            $version -= ($minor * 100);
+            $patch = $version;
+            $errors[] = array(
+                'error' => $l->t('libxml2 2.7.0 is at least required. Currently %s is installed.', [$major . '.' . $minor . '.' . $patch]),
+                'hint' => $l->t('To fix this issue update your libxml2 version and restart your web server.')
+            );
+        }
+
+        if (!self::isAnnotationsWorking()) {
+            $errors[] = array(
+                'error' => $l->t('PHP is apparently set up to strip inline doc blocks. This will make several core apps inaccessible.'),
+                'hint' => $l->t('This is probably caused by a cache/accelerator such as Zend OPcache or eAccelerator.')
+            );
+        }
+
+        if (!\OC::$CLI && $webServerRestart) {
+            $errors[] = array(
+                'error' => $l->t('PHP modules have been installed, but they are still listed as missing?'),
+                'hint' => $l->t('Please ask your server administrator to restart the web server.')
+            );
+        }
+
+        $errors = array_merge($errors, self::checkDatabaseVersion());
+
+        // Cache the result of this function
+        \OC::$server->getSession()->set('checkServer_succeeded', count($errors) == 0);
+
+        return $errors;
+    }
+
+    /**
+     * Check the database version
+     *
+     * @return array errors array
+     */
+    public static function checkDatabaseVersion() {
+        $l = \OC::$server->getL10N('lib');
+        $errors = array();
+        $dbType = \OC::$server->getSystemConfig()->getValue('dbtype', 'sqlite');
+        if ($dbType === 'pgsql') {
+            // check PostgreSQL version
+            try {
+                $result = \OC_DB::executeAudited('SHOW SERVER_VERSION');
+                $data = $result->fetchRow();
+                if (isset($data['server_version'])) {
+                    $version = $data['server_version'];
+                    if (version_compare($version, '9.0.0', '<')) {
+                        $errors[] = array(
+                            'error' => $l->t('PostgreSQL >= 9 required'),
+                            'hint' => $l->t('Please upgrade your database version')
+                        );
+                    }
+                }
+            } catch (\Doctrine\DBAL\DBALException $e) {
+                $logger = \OC::$server->getLogger();
+                $logger->warning('Error occurred while checking PostgreSQL version, assuming >= 9');
+                $logger->logException($e);
+            }
+        }
+        return $errors;
+    }
+
+    /**
+     * Check for correct file permissions of data directory
+     *
+     * @param string $dataDirectory
+     * @return array arrays with error messages and hints
+     */
+    public static function checkDataDirectoryPermissions($dataDirectory) {
+        if(\OC::$server->getConfig()->getSystemValue('check_data_directory_permissions', true) === false) {
+            return  [];
+        }
+        $l = \OC::$server->getL10N('lib');
+        $errors = [];
+        $permissionsModHint = $l->t('Please change the permissions to 0770 so that the directory'
+            . ' cannot be listed by other users.');
+        $perms = substr(decoct(@fileperms($dataDirectory)), -3);
+        if (substr($perms, -1) !== '0') {
+            chmod($dataDirectory, 0770);
+            clearstatcache();
+            $perms = substr(decoct(@fileperms($dataDirectory)), -3);
+            if ($perms[2] !== '0') {
+                $errors[] = [
+                    'error' => $l->t('Your data directory is readable by other users'),
+                    'hint' => $permissionsModHint
+                ];
+            }
+        }
+        return $errors;
+    }
+
+    /**
+     * Check that the data directory exists and is valid by
+     * checking the existence of the ".ocdata" file.
+     *
+     * @param string $dataDirectory data directory path
+     * @return array errors found
+     */
+    public static function checkDataDirectoryValidity($dataDirectory) {
+        $l = \OC::$server->getL10N('lib');
+        $errors = [];
+        if ($dataDirectory[0] !== '/') {
+            $errors[] = [
+                'error' => $l->t('Your data directory must be an absolute path'),
+                'hint' => $l->t('Check the value of "datadirectory" in your configuration')
+            ];
+        }
+        if (!file_exists($dataDirectory . '/.ocdata')) {
+            $errors[] = [
+                'error' => $l->t('Your data directory is invalid'),
+                'hint' => $l->t('Ensure there is a file called ".ocdata"' .
+                    ' in the root of the data directory.')
+            ];
+        }
+        return $errors;
+    }
+
+    /**
+     * Check if the user is logged in, redirects to home if not. With
+     * redirect URL parameter to the request URI.
+     *
+     * @return void
+     */
+    public static function checkLoggedIn() {
+        // Check if we are a user
+        if (!\OC::$server->getUserSession()->isLoggedIn()) {
+            header('Location: ' . \OC::$server->getURLGenerator()->linkToRoute(
+                        'core.login.showLoginForm',
+                        [
+                            'redirect_url' => \OC::$server->getRequest()->getRequestUri(),
+                        ]
+                    )
+            );
+            exit();
+        }
+        // Redirect to 2FA challenge selection if 2FA challenge was not solved yet
+        if (\OC::$server->getTwoFactorAuthManager()->needsSecondFactor(\OC::$server->getUserSession()->getUser())) {
+            header('Location: ' . \OC::$server->getURLGenerator()->linkToRoute('core.TwoFactorChallenge.selectChallenge'));
+            exit();
+        }
+    }
+
+    /**
+     * Check if the user is a admin, redirects to home if not
+     *
+     * @return void
+     */
+    public static function checkAdminUser() {
+        OC_Util::checkLoggedIn();
+        if (!OC_User::isAdminUser(OC_User::getUser())) {
+            header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
+            exit();
+        }
+    }
+
+    /**
+     * Check if the user is a subadmin, redirects to home if not
+     *
+     * @return null|boolean $groups where the current user is subadmin
+     */
+    public static function checkSubAdminUser() {
+        OC_Util::checkLoggedIn();
+        $userObject = \OC::$server->getUserSession()->getUser();
+        $isSubAdmin = false;
+        if($userObject !== null) {
+            $isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
+        }
+
+        if (!$isSubAdmin) {
+            header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
+            exit();
+        }
+        return true;
+    }
+
+    /**
+     * Returns the URL of the default page
+     * based on the system configuration and
+     * the apps visible for the current user
+     *
+     * @return string URL
+     * @suppress PhanDeprecatedFunction
+     */
+    public static function getDefaultPageUrl() {
+        $urlGenerator = \OC::$server->getURLGenerator();
+        // Deny the redirect if the URL contains a @
+        // This prevents unvalidated redirects like ?redirect_url=:user@domain.com
+        if (isset($_REQUEST['redirect_url']) && strpos($_REQUEST['redirect_url'], '@') === false) {
+            $location = $urlGenerator->getAbsoluteURL(urldecode($_REQUEST['redirect_url']));
+        } else {
+            $defaultPage = \OC::$server->getConfig()->getAppValue('core', 'defaultpage');
+            if ($defaultPage) {
+                $location = $urlGenerator->getAbsoluteURL($defaultPage);
+            } else {
+                $appId = 'files';
+                $config = \OC::$server->getConfig();
+                $defaultApps = explode(',', $config->getSystemValue('defaultapp', 'files'));
+                // find the first app that is enabled for the current user
+                foreach ($defaultApps as $defaultApp) {
+                    $defaultApp = OC_App::cleanAppId(strip_tags($defaultApp));
+                    if (static::getAppManager()->isEnabledForUser($defaultApp)) {
+                        $appId = $defaultApp;
+                        break;
+                    }
+                }
+
+                if($config->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true') {
+                    $location = $urlGenerator->getAbsoluteURL('/apps/' . $appId . '/');
+                } else {
+                    $location = $urlGenerator->getAbsoluteURL('/index.php/apps/' . $appId . '/');
+                }
+            }
+        }
+        return $location;
+    }
+
+    /**
+     * Redirect to the user default page
+     *
+     * @return void
+     */
+    public static function redirectToDefaultPage() {
+        $location = self::getDefaultPageUrl();
+        header('Location: ' . $location);
+        exit();
+    }
+
+    /**
+     * get an id unique for this instance
+     *
+     * @return string
+     */
+    public static function getInstanceId() {
+        $id = \OC::$server->getSystemConfig()->getValue('instanceid', null);
+        if (is_null($id)) {
+            // We need to guarantee at least one letter in instanceid so it can be used as the session_name
+            $id = 'oc' . \OC::$server->getSecureRandom()->generate(10, \OCP\Security\ISecureRandom::CHAR_LOWER.\OCP\Security\ISecureRandom::CHAR_DIGITS);
+            \OC::$server->getSystemConfig()->setValue('instanceid', $id);
+        }
+        return $id;
+    }
+
+    /**
+     * Public function to sanitize HTML
+     *
+     * This function is used to sanitize HTML and should be applied on any
+     * string or array of strings before displaying it on a web page.
+     *
+     * @param string|array $value
+     * @return string|array an array of sanitized strings or a single sanitized string, depends on the input parameter.
+     */
+    public static function sanitizeHTML($value) {
+        if (is_array($value)) {
+            $value = array_map(function($value) {
+                return self::sanitizeHTML($value);
+            }, $value);
+        } else {
+            // Specify encoding for PHP<5.4
+            $value = htmlspecialchars((string)$value, ENT_QUOTES, 'UTF-8');
+        }
+        return $value;
+    }
+
+    /**
+     * Public function to encode url parameters
+     *
+     * This function is used to encode path to file before output.
+     * Encoding is done according to RFC 3986 with one exception:
+     * Character '/' is preserved as is.
+     *
+     * @param string $component part of URI to encode
+     * @return string
+     */
+    public static function encodePath($component) {
+        $encoded = rawurlencode($component);
+        $encoded = str_replace('%2F', '/', $encoded);
+        return $encoded;
+    }
+
+
+    public function createHtaccessTestFile(\OCP\IConfig $config) {
+        // php dev server does not support htaccess
+        if (php_sapi_name() === 'cli-server') {
+            return false;
+        }
+
+        // testdata
+        $fileName = '/htaccesstest.txt';
+        $testContent = 'This is used for testing whether htaccess is properly enabled to disallow access from the outside. This file can be safely removed.';
+
+        // creating a test file
+        $testFile = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $fileName;
+
+        if (file_exists($testFile)) {// already running this test, possible recursive call
+            return false;
+        }
+
+        $fp = @fopen($testFile, 'w');
+        if (!$fp) {
+            throw new OC\HintException('Can\'t create test file to check for working .htaccess file.',
+                'Make sure it is possible for the webserver to write to ' . $testFile);
+        }
+        fwrite($fp, $testContent);
+        fclose($fp);
+
+        return $testContent;
+    }
+
+    /**
+     * Check if the .htaccess file is working
+     * @param \OCP\IConfig $config
+     * @return bool
+     * @throws Exception
+     * @throws \OC\HintException If the test file can't get written.
+     */
+    public function isHtaccessWorking(\OCP\IConfig $config) {
+
+        if (\OC::$CLI || !$config->getSystemValue('check_for_working_htaccess', true)) {
+            return true;
+        }
+
+        $testContent = $this->createHtaccessTestFile($config);
+        if ($testContent === false) {
+            return false;
+        }
+
+        $fileName = '/htaccesstest.txt';
+        $testFile = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $fileName;
+
+        // accessing the file via http
+        $url = \OC::$server->getURLGenerator()->getAbsoluteURL(OC::$WEBROOT . '/data' . $fileName);
+        try {
+            $content = \OC::$server->getHTTPClientService()->newClient()->get($url)->getBody();
+        } catch (\Exception $e) {
+            $content = false;
+        }
+
+        // cleanup
+        @unlink($testFile);
+
+        /*
 		 * If the content is not equal to test content our .htaccess
 		 * is working as required
 		 */
-		return $content !== $testContent;
-	}
-
-	/**
-	 * Check if the setlocal call does not work. This can happen if the right
-	 * local packages are not available on the server.
-	 *
-	 * @return bool
-	 */
-	public static function isSetLocaleWorking() {
-		\Patchwork\Utf8\Bootup::initLocale();
-		if ('' === basename('§')) {
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	 * Check if it's possible to get the inline annotations
-	 *
-	 * @return bool
-	 */
-	public static function isAnnotationsWorking() {
-		$reflection = new \ReflectionMethod(__METHOD__);
-		$docs = $reflection->getDocComment();
-
-		return (is_string($docs) && strlen($docs) > 50);
-	}
-
-	/**
-	 * Check if the PHP module fileinfo is loaded.
-	 *
-	 * @return bool
-	 */
-	public static function fileInfoLoaded() {
-		return function_exists('finfo_open');
-	}
-
-	/**
-	 * clear all levels of output buffering
-	 *
-	 * @return void
-	 */
-	public static function obEnd() {
-		while (ob_get_level()) {
-			ob_end_clean();
-		}
-	}
-
-	/**
-	 * Checks whether the server is running on Mac OS X
-	 *
-	 * @return bool true if running on Mac OS X, false otherwise
-	 */
-	public static function runningOnMac() {
-		return (strtoupper(substr(PHP_OS, 0, 6)) === 'DARWIN');
-	}
-
-	/**
-	 * Checks whether server is running on HHVM
-	 *
-	 * @return bool True if running on HHVM, false otherwise
-	 */
-	public static function runningOnHhvm() {
-		return defined('HHVM_VERSION');
-	}
-
-	/**
-	 * Handles the case that there may not be a theme, then check if a "default"
-	 * theme exists and take that one
-	 *
-	 * @return string the theme
-	 */
-	public static function getTheme() {
-		$theme = \OC::$server->getSystemConfig()->getValue("theme", '');
-
-		if ($theme === '') {
-			if (is_dir(OC::$SERVERROOT . '/themes/default')) {
-				$theme = 'default';
-			}
-		}
-
-		return $theme;
-	}
-
-	/**
-	 * Clear a single file from the opcode cache
-	 * This is useful for writing to the config file
-	 * in case the opcode cache does not re-validate files
-	 * Returns true if successful, false if unsuccessful:
-	 * caller should fall back on clearing the entire cache
-	 * with clearOpcodeCache() if unsuccessful
-	 *
-	 * @param string $path the path of the file to clear from the cache
-	 * @return bool true if underlying function returns true, otherwise false
-	 */
-	public static function deleteFromOpcodeCache($path) {
-		$ret = false;
-		if ($path) {
-			// APC >= 3.1.1
-			if (function_exists('apc_delete_file')) {
-				$ret = @apc_delete_file($path);
-			}
-			// Zend OpCache >= 7.0.0, PHP >= 5.5.0
-			if (function_exists('opcache_invalidate')) {
-				$ret = opcache_invalidate($path);
-			}
-		}
-		return $ret;
-	}
-
-	/**
-	 * Clear the opcode cache if one exists
-	 * This is necessary for writing to the config file
-	 * in case the opcode cache does not re-validate files
-	 *
-	 * @return void
-	 * @suppress PhanDeprecatedFunction
-	 * @suppress PhanUndeclaredConstant
-	 */
-	public static function clearOpcodeCache() {
-		// APC
-		if (function_exists('apc_clear_cache')) {
-			apc_clear_cache();
-		}
-		// Zend Opcache
-		if (function_exists('accelerator_reset')) {
-			accelerator_reset();
-		}
-		// XCache
-		if (function_exists('xcache_clear_cache')) {
-			if (\OC::$server->getIniWrapper()->getBool('xcache.admin.enable_auth')) {
-				\OCP\Util::writeLog('core', 'XCache opcode cache will not be cleared because "xcache.admin.enable_auth" is enabled.', ILogger::WARN);
-			} else {
-				@xcache_clear_cache(XC_TYPE_PHP, 0);
-			}
-		}
-		// Opcache (PHP >= 5.5)
-		if (function_exists('opcache_reset')) {
-			opcache_reset();
-		}
-	}
-
-	/**
-	 * Normalize a unicode string
-	 *
-	 * @param string $value a not normalized string
-	 * @return bool|string
-	 */
-	public static function normalizeUnicode($value) {
-		if(Normalizer::isNormalized($value)) {
-			return $value;
-		}
-
-		$normalizedValue = Normalizer::normalize($value);
-		if ($normalizedValue === null || $normalizedValue === false) {
-			\OC::$server->getLogger()->warning('normalizing failed for "' . $value . '"', ['app' => 'core']);
-			return $value;
-		}
-
-		return $normalizedValue;
-	}
-
-	/**
-	 * A human readable string is generated based on version and build number
-	 *
-	 * @return string
-	 */
-	public static function getHumanVersion() {
-		$version = OC_Util::getVersionString();
-		$build = OC_Util::getBuild();
-		if (!empty($build) and OC_Util::getChannel() === 'daily') {
-			$version .= ' Build:' . $build;
-		}
-		return $version;
-	}
-
-	/**
-	 * Returns whether the given file name is valid
-	 *
-	 * @param string $file file name to check
-	 * @return bool true if the file name is valid, false otherwise
-	 * @deprecated use \OC\Files\View::verifyPath()
-	 */
-	public static function isValidFileName($file) {
-		$trimmed = trim($file);
-		if ($trimmed === '') {
-			return false;
-		}
-		if (\OC\Files\Filesystem::isIgnoredDir($trimmed)) {
-			return false;
-		}
-
-		// detect part files
-		if (preg_match('/' . \OCP\Files\FileInfo::BLACKLIST_FILES_REGEX . '/', $trimmed) !== 0) {
-			return false;
-		}
-
-		foreach (str_split($trimmed) as $char) {
-			if (strpos(\OCP\Constants::FILENAME_INVALID_CHARS, $char) !== false) {
-				return false;
-			}
-		}
-		return true;
-	}
-
-	/**
-	 * Check whether the instance needs to perform an upgrade,
-	 * either when the core version is higher or any app requires
-	 * an upgrade.
-	 *
-	 * @param \OC\SystemConfig $config
-	 * @return bool whether the core or any app needs an upgrade
-	 * @throws \OC\HintException When the upgrade from the given version is not allowed
-	 */
-	public static function needUpgrade(\OC\SystemConfig $config) {
-		if ($config->getValue('installed', false)) {
-			$installedVersion = $config->getValue('version', '0.0.0');
-			$currentVersion = implode('.', \OCP\Util::getVersion());
-			$versionDiff = version_compare($currentVersion, $installedVersion);
-			if ($versionDiff > 0) {
-				return true;
-			} else if ($config->getValue('debug', false) && $versionDiff < 0) {
-				// downgrade with debug
-				$installedMajor = explode('.', $installedVersion);
-				$installedMajor = $installedMajor[0] . '.' . $installedMajor[1];
-				$currentMajor = explode('.', $currentVersion);
-				$currentMajor = $currentMajor[0] . '.' . $currentMajor[1];
-				if ($installedMajor === $currentMajor) {
-					// Same major, allow downgrade for developers
-					return true;
-				} else {
-					// downgrade attempt, throw exception
-					throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
-				}
-			} else if ($versionDiff < 0) {
-				// downgrade attempt, throw exception
-				throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
-			}
-
-			// also check for upgrades for apps (independently from the user)
-			$apps = \OC_App::getEnabledApps(false, true);
-			$shouldUpgrade = false;
-			foreach ($apps as $app) {
-				if (\OC_App::shouldUpgrade($app)) {
-					$shouldUpgrade = true;
-					break;
-				}
-			}
-			return $shouldUpgrade;
-		} else {
-			return false;
-		}
-	}
+        return $content !== $testContent;
+    }
+
+    /**
+     * Check if the setlocal call does not work. This can happen if the right
+     * local packages are not available on the server.
+     *
+     * @return bool
+     */
+    public static function isSetLocaleWorking() {
+        \Patchwork\Utf8\Bootup::initLocale();
+        if ('' === basename('§')) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Check if it's possible to get the inline annotations
+     *
+     * @return bool
+     */
+    public static function isAnnotationsWorking() {
+        $reflection = new \ReflectionMethod(__METHOD__);
+        $docs = $reflection->getDocComment();
+
+        return (is_string($docs) && strlen($docs) > 50);
+    }
+
+    /**
+     * Check if the PHP module fileinfo is loaded.
+     *
+     * @return bool
+     */
+    public static function fileInfoLoaded() {
+        return function_exists('finfo_open');
+    }
+
+    /**
+     * clear all levels of output buffering
+     *
+     * @return void
+     */
+    public static function obEnd() {
+        while (ob_get_level()) {
+            ob_end_clean();
+        }
+    }
+
+    /**
+     * Checks whether the server is running on Mac OS X
+     *
+     * @return bool true if running on Mac OS X, false otherwise
+     */
+    public static function runningOnMac() {
+        return (strtoupper(substr(PHP_OS, 0, 6)) === 'DARWIN');
+    }
+
+    /**
+     * Checks whether server is running on HHVM
+     *
+     * @return bool True if running on HHVM, false otherwise
+     */
+    public static function runningOnHhvm() {
+        return defined('HHVM_VERSION');
+    }
+
+    /**
+     * Handles the case that there may not be a theme, then check if a "default"
+     * theme exists and take that one
+     *
+     * @return string the theme
+     */
+    public static function getTheme() {
+        $theme = \OC::$server->getSystemConfig()->getValue("theme", '');
+
+        if ($theme === '') {
+            if (is_dir(OC::$SERVERROOT . '/themes/default')) {
+                $theme = 'default';
+            }
+        }
+
+        return $theme;
+    }
+
+    /**
+     * Clear a single file from the opcode cache
+     * This is useful for writing to the config file
+     * in case the opcode cache does not re-validate files
+     * Returns true if successful, false if unsuccessful:
+     * caller should fall back on clearing the entire cache
+     * with clearOpcodeCache() if unsuccessful
+     *
+     * @param string $path the path of the file to clear from the cache
+     * @return bool true if underlying function returns true, otherwise false
+     */
+    public static function deleteFromOpcodeCache($path) {
+        $ret = false;
+        if ($path) {
+            // APC >= 3.1.1
+            if (function_exists('apc_delete_file')) {
+                $ret = @apc_delete_file($path);
+            }
+            // Zend OpCache >= 7.0.0, PHP >= 5.5.0
+            if (function_exists('opcache_invalidate')) {
+                $ret = opcache_invalidate($path);
+            }
+        }
+        return $ret;
+    }
+
+    /**
+     * Clear the opcode cache if one exists
+     * This is necessary for writing to the config file
+     * in case the opcode cache does not re-validate files
+     *
+     * @return void
+     * @suppress PhanDeprecatedFunction
+     * @suppress PhanUndeclaredConstant
+     */
+    public static function clearOpcodeCache() {
+        // APC
+        if (function_exists('apc_clear_cache')) {
+            apc_clear_cache();
+        }
+        // Zend Opcache
+        if (function_exists('accelerator_reset')) {
+            accelerator_reset();
+        }
+        // XCache
+        if (function_exists('xcache_clear_cache')) {
+            if (\OC::$server->getIniWrapper()->getBool('xcache.admin.enable_auth')) {
+                \OCP\Util::writeLog('core', 'XCache opcode cache will not be cleared because "xcache.admin.enable_auth" is enabled.', ILogger::WARN);
+            } else {
+                @xcache_clear_cache(XC_TYPE_PHP, 0);
+            }
+        }
+        // Opcache (PHP >= 5.5)
+        if (function_exists('opcache_reset')) {
+            opcache_reset();
+        }
+    }
+
+    /**
+     * Normalize a unicode string
+     *
+     * @param string $value a not normalized string
+     * @return bool|string
+     */
+    public static function normalizeUnicode($value) {
+        if(Normalizer::isNormalized($value)) {
+            return $value;
+        }
+
+        $normalizedValue = Normalizer::normalize($value);
+        if ($normalizedValue === null || $normalizedValue === false) {
+            \OC::$server->getLogger()->warning('normalizing failed for "' . $value . '"', ['app' => 'core']);
+            return $value;
+        }
+
+        return $normalizedValue;
+    }
+
+    /**
+     * A human readable string is generated based on version and build number
+     *
+     * @return string
+     */
+    public static function getHumanVersion() {
+        $version = OC_Util::getVersionString();
+        $build = OC_Util::getBuild();
+        if (!empty($build) and OC_Util::getChannel() === 'daily') {
+            $version .= ' Build:' . $build;
+        }
+        return $version;
+    }
+
+    /**
+     * Returns whether the given file name is valid
+     *
+     * @param string $file file name to check
+     * @return bool true if the file name is valid, false otherwise
+     * @deprecated use \OC\Files\View::verifyPath()
+     */
+    public static function isValidFileName($file) {
+        $trimmed = trim($file);
+        if ($trimmed === '') {
+            return false;
+        }
+        if (\OC\Files\Filesystem::isIgnoredDir($trimmed)) {
+            return false;
+        }
+
+        // detect part files
+        if (preg_match('/' . \OCP\Files\FileInfo::BLACKLIST_FILES_REGEX . '/', $trimmed) !== 0) {
+            return false;
+        }
+
+        foreach (str_split($trimmed) as $char) {
+            if (strpos(\OCP\Constants::FILENAME_INVALID_CHARS, $char) !== false) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Check whether the instance needs to perform an upgrade,
+     * either when the core version is higher or any app requires
+     * an upgrade.
+     *
+     * @param \OC\SystemConfig $config
+     * @return bool whether the core or any app needs an upgrade
+     * @throws \OC\HintException When the upgrade from the given version is not allowed
+     */
+    public static function needUpgrade(\OC\SystemConfig $config) {
+        if ($config->getValue('installed', false)) {
+            $installedVersion = $config->getValue('version', '0.0.0');
+            $currentVersion = implode('.', \OCP\Util::getVersion());
+            $versionDiff = version_compare($currentVersion, $installedVersion);
+            if ($versionDiff > 0) {
+                return true;
+            } else if ($config->getValue('debug', false) && $versionDiff < 0) {
+                // downgrade with debug
+                $installedMajor = explode('.', $installedVersion);
+                $installedMajor = $installedMajor[0] . '.' . $installedMajor[1];
+                $currentMajor = explode('.', $currentVersion);
+                $currentMajor = $currentMajor[0] . '.' . $currentMajor[1];
+                if ($installedMajor === $currentMajor) {
+                    // Same major, allow downgrade for developers
+                    return true;
+                } else {
+                    // downgrade attempt, throw exception
+                    throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
+                }
+            } else if ($versionDiff < 0) {
+                // downgrade attempt, throw exception
+                throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
+            }
+
+            // also check for upgrades for apps (independently from the user)
+            $apps = \OC_App::getEnabledApps(false, true);
+            $shouldUpgrade = false;
+            foreach ($apps as $app) {
+                if (\OC_App::shouldUpgrade($app)) {
+                    $shouldUpgrade = true;
+                    break;
+                }
+            }
+            return $shouldUpgrade;
+        } else {
+            return false;
+        }
+    }
 
 }