nextcloud / server

lib/private/Template/TemplateFileLocator.php

Indentation +29 added lines, -29 removed lines

@@ -26,37 +26,37 @@
 namespace OC\Template;
 
 class TemplateFileLocator {
-	protected $dirs;
-	private $path;
+    protected $dirs;
+    private $path;
 
-	/**
-	 * @param string[] $dirs
-	 */
-	public function __construct( $dirs ) {
-		$this->dirs = $dirs;
-	}
+    /**
+     * @param string[] $dirs
+     */
+    public function __construct( $dirs ) {
+        $this->dirs = $dirs;
+    }
 
-	/**
-	 * @param string $template
-	 * @return string
-	 * @throws \Exception
-	 */
-	public function find( $template ) {
-		if ($template === '') {
-			throw new \InvalidArgumentException('Empty template name');
-		}
+    /**
+     * @param string $template
+     * @return string
+     * @throws \Exception
+     */
+    public function find( $template ) {
+        if ($template === '') {
+            throw new \InvalidArgumentException('Empty template name');
+        }
 
-		foreach($this->dirs as $dir) {
-			$file = $dir.$template.'.php';
-			if (is_file($file)) {
-				$this->path = $dir;
-				return $file;
-			}
-		}
-		throw new \Exception('template file not found: template:'.$template);
-	}
+        foreach($this->dirs as $dir) {
+            $file = $dir.$template.'.php';
+            if (is_file($file)) {
+                $this->path = $dir;
+                return $file;
+            }
+        }
+        throw new \Exception('template file not found: template:'.$template);
+    }
 
-	public function getPath() {
-		return $this->path;
-	}
+    public function getPath() {
+        return $this->path;
+    }
 }

Spacing +3 added lines, -3 removed lines

@@ -32,7 +32,7 @@ 
 	/**
 	 * @param string[] $dirs
 	 */
-	public function __construct( $dirs ) {
+	public function __construct($dirs) {
 		$this->dirs = $dirs;
 	}
 
@@ -41,12 +41,12 @@ 
 	 * @return string
 	 * @throws \Exception
 	 */
-	public function find( $template ) {
+	public function find($template) {
 		if ($template === '') {
 			throw new \InvalidArgumentException('Empty template name');
 		}
 
-		foreach($this->dirs as $dir) {
+		foreach ($this->dirs as $dir) {
 			$file = $dir.$template.'.php';
 			if (is_file($file)) {
 				$this->path = $dir;

lib/private/Hooks/BasicEmitter.php

Indentation +1 added lines, -1 removed lines

@@ -24,5 +24,5 @@
 namespace OC\Hooks;
 
 abstract class BasicEmitter implements Emitter {
-	use EmitterTrait;
+    use EmitterTrait;
 }

lib/private/Hooks/Emitter.php

Indentation +14 added lines, -14 removed lines

@@ -32,19 +32,19 @@
  * @package OC\Hooks
  */
 interface Emitter {
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param callable $callback
-	 * @return void
-	 */
-	public function listen($scope, $method, callable $callback);
+    /**
+     * @param string $scope
+     * @param string $method
+     * @param callable $callback
+     * @return void
+     */
+    public function listen($scope, $method, callable $callback);
 
-	/**
-	 * @param string $scope optional
-	 * @param string $method optional
-	 * @param callable $callback optional
-	 * @return void
-	 */
-	public function removeListener($scope = null, $method = null, callable $callback = null);
+    /**
+     * @param string $scope optional
+     * @param string $method optional
+     * @param callable $callback optional
+     * @return void
+     */
+    public function removeListener($scope = null, $method = null, callable $callback = null);
 }

lib/private/Hooks/ForwardingEmitter.php

Indentation +28 added lines, -28 removed lines

@@ -31,35 +31,35 @@
  * @package OC\Hooks
  */
 abstract class ForwardingEmitter extends BasicEmitter {
-	/**
-	 * @var \OC\Hooks\Emitter[] array
-	 */
-	private $forwardEmitters = array();
+    /**
+     * @var \OC\Hooks\Emitter[] array
+     */
+    private $forwardEmitters = array();
 
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param callable $callback
-	 */
-	public function listen($scope, $method, callable $callback) {
-		parent::listen($scope, $method, $callback);
-		foreach ($this->forwardEmitters as $emitter) {
-			$emitter->listen($scope, $method, $callback);
-		}
-	}
+    /**
+     * @param string $scope
+     * @param string $method
+     * @param callable $callback
+     */
+    public function listen($scope, $method, callable $callback) {
+        parent::listen($scope, $method, $callback);
+        foreach ($this->forwardEmitters as $emitter) {
+            $emitter->listen($scope, $method, $callback);
+        }
+    }
 
-	/**
-	 * @param \OC\Hooks\Emitter $emitter
-	 */
-	protected function forward(Emitter $emitter) {
-		$this->forwardEmitters[] = $emitter;
+    /**
+     * @param \OC\Hooks\Emitter $emitter
+     */
+    protected function forward(Emitter $emitter) {
+        $this->forwardEmitters[] = $emitter;
 
-		//forward all previously connected hooks
-		foreach ($this->listeners as $key => $listeners) {
-			list($scope, $method) = explode('::', $key, 2);
-			foreach ($listeners as $listener) {
-				$emitter->listen($scope, $method, $listener);
-			}
-		}
-	}
+        //forward all previously connected hooks
+        foreach ($this->listeners as $key => $listeners) {
+            list($scope, $method) = explode('::', $key, 2);
+            foreach ($listeners as $listener) {
+                $emitter->listen($scope, $method, $listener);
+            }
+        }
+    }
 }

lib/private/Hooks/EmitterTrait.php

Spacing +3 added lines, -3 removed lines

@@ -35,7 +35,7 @@ 
 	 * @param callable $callback
 	 */
 	public function listen($scope, $method, callable $callback) {
-		$eventName = $scope . '::' . $method;
+		$eventName = $scope.'::'.$method;
 		if (!isset($this->listeners[$eventName])) {
 			$this->listeners[$eventName] = array();
 		}
@@ -53,7 +53,7 @@ 
 		$names = array();
 		$allNames = array_keys($this->listeners);
 		if ($scope and $method) {
-			$name = $scope . '::' . $method;
+			$name = $scope.'::'.$method;
 			if (isset($this->listeners[$name])) {
 				$names[] = $name;
 			}
@@ -93,7 +93,7 @@ 
 	 * @param array $arguments optional
 	 */
 	protected function emit($scope, $method, array $arguments = array()) {
-		$eventName = $scope . '::' . $method;
+		$eventName = $scope.'::'.$method;
 		if (isset($this->listeners[$eventName])) {
 			foreach ($this->listeners[$eventName] as $callback) {
 				call_user_func_array($callback, $arguments);

Indentation +72 added lines, -72 removed lines

@@ -24,80 +24,80 @@
 
 trait EmitterTrait {
 
-	/**
-	 * @var callable[][] $listeners
-	 */
-	protected $listeners = array();
+    /**
+     * @var callable[][] $listeners
+     */
+    protected $listeners = array();
 
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param callable $callback
-	 */
-	public function listen($scope, $method, callable $callback) {
-		$eventName = $scope . '::' . $method;
-		if (!isset($this->listeners[$eventName])) {
-			$this->listeners[$eventName] = array();
-		}
-		if (array_search($callback, $this->listeners[$eventName], true) === false) {
-			$this->listeners[$eventName][] = $callback;
-		}
-	}
+    /**
+     * @param string $scope
+     * @param string $method
+     * @param callable $callback
+     */
+    public function listen($scope, $method, callable $callback) {
+        $eventName = $scope . '::' . $method;
+        if (!isset($this->listeners[$eventName])) {
+            $this->listeners[$eventName] = array();
+        }
+        if (array_search($callback, $this->listeners[$eventName], true) === false) {
+            $this->listeners[$eventName][] = $callback;
+        }
+    }
 
-	/**
-	 * @param string $scope optional
-	 * @param string $method optional
-	 * @param callable $callback optional
-	 */
-	public function removeListener($scope = null, $method = null, callable $callback = null) {
-		$names = array();
-		$allNames = array_keys($this->listeners);
-		if ($scope and $method) {
-			$name = $scope . '::' . $method;
-			if (isset($this->listeners[$name])) {
-				$names[] = $name;
-			}
-		} elseif ($scope) {
-			foreach ($allNames as $name) {
-				$parts = explode('::', $name, 2);
-				if ($parts[0] == $scope) {
-					$names[] = $name;
-				}
-			}
-		} elseif ($method) {
-			foreach ($allNames as $name) {
-				$parts = explode('::', $name, 2);
-				if ($parts[1] == $method) {
-					$names[] = $name;
-				}
-			}
-		} else {
-			$names = $allNames;
-		}
+    /**
+     * @param string $scope optional
+     * @param string $method optional
+     * @param callable $callback optional
+     */
+    public function removeListener($scope = null, $method = null, callable $callback = null) {
+        $names = array();
+        $allNames = array_keys($this->listeners);
+        if ($scope and $method) {
+            $name = $scope . '::' . $method;
+            if (isset($this->listeners[$name])) {
+                $names[] = $name;
+            }
+        } elseif ($scope) {
+            foreach ($allNames as $name) {
+                $parts = explode('::', $name, 2);
+                if ($parts[0] == $scope) {
+                    $names[] = $name;
+                }
+            }
+        } elseif ($method) {
+            foreach ($allNames as $name) {
+                $parts = explode('::', $name, 2);
+                if ($parts[1] == $method) {
+                    $names[] = $name;
+                }
+            }
+        } else {
+            $names = $allNames;
+        }
 
-		foreach ($names as $name) {
-			if ($callback) {
-				$index = array_search($callback, $this->listeners[$name], true);
-				if ($index !== false) {
-					unset($this->listeners[$name][$index]);
-				}
-			} else {
-				$this->listeners[$name] = array();
-			}
-		}
-	}
+        foreach ($names as $name) {
+            if ($callback) {
+                $index = array_search($callback, $this->listeners[$name], true);
+                if ($index !== false) {
+                    unset($this->listeners[$name][$index]);
+                }
+            } else {
+                $this->listeners[$name] = array();
+            }
+        }
+    }
 
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param array $arguments optional
-	 */
-	protected function emit($scope, $method, array $arguments = array()) {
-		$eventName = $scope . '::' . $method;
-		if (isset($this->listeners[$eventName])) {
-			foreach ($this->listeners[$eventName] as $callback) {
-				call_user_func_array($callback, $arguments);
-			}
-		}
-	}
+    /**
+     * @param string $scope
+     * @param string $method
+     * @param array $arguments optional
+     */
+    protected function emit($scope, $method, array $arguments = array()) {
+        $eventName = $scope . '::' . $method;
+        if (isset($this->listeners[$eventName])) {
+            foreach ($this->listeners[$eventName] as $callback) {
+                call_user_func_array($callback, $arguments);
+            }
+        }
+    }
 }

lib/private/legacy/files.php

Braces +6 added lines, -12 removed lines

@@ -83,13 +83,11 @@ 
 			    if (count($rangeArray) > 1) {
 				$type = 'multipart/byteranges; boundary='.self::getBoundary();
 				// no Content-Length header here
-			    }
-			    else {
+			    } else {
 				header(sprintf('Content-Range: bytes %d-%d/%d', $rangeArray[0]['from'], $rangeArray[0]['to'], $fileSize), true);
 				OC_Response::setContentLengthHeader($rangeArray[0]['to'] - $rangeArray[0]['from'] + 1);
 			    }
-			}
-			else {
+			} else {
 			    OC_Response::setContentLengthHeader($fileSize);
 			}
 		}
@@ -223,13 +221,11 @@ 
 				if ($minOffset >= $fileSize) {
 					break;
 				}
-			}
-			elseif (is_numeric($ranges[0]) && $ranges[0] < $fileSize) {
+			} elseif (is_numeric($ranges[0]) && $ranges[0] < $fileSize) {
 				// case: x-
 				$rangeArray[$ind++] = array( 'from' => $ranges[0], 'to' => $fileSize-1, 'size' => $fileSize );
 				break;
-			}
-			elseif (is_numeric($ranges[1])) {
+			} elseif (is_numeric($ranges[1])) {
 				// case: -x
 				if ($ranges[1] > $fileSize) {
 					$ranges[1] = $fileSize;
@@ -277,8 +273,7 @@ 
 			try {
 			    if (count($rangeArray) == 1) {
 				$view->readfilePart($filename, $rangeArray[0]['from'], $rangeArray[0]['to']);
-			    }
-			    else {
+			    } else {
 				// check if file is seekable (if not throw UnseekableException)
 				// we have to check it before body contents
 				$view->readfilePart($filename, $rangeArray[0]['size'], $rangeArray[0]['size']);
@@ -301,8 +296,7 @@ 
 			    self::sendHeaders($filename, $name, array());
 			    $view->readfile($filename);
 			}
-		}
-		else {
+		} else {
 		    $view->readfile($filename);
 		}
 	}

Indentation +348 added lines, -348 removed lines

@@ -49,356 +49,356 @@
  *
  */
 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($rangeArray)) {
-			    http_response_code(206);
-			    header('Accept-Ranges: bytes', true);
-			    if (count($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, 200);
-		} 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(), 200);
-		} 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, 200);
-		}
-	}
-
-	/**
-	 * @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($rangeArray)) {
+                http_response_code(206);
+                header('Accept-Ranges: bytes', true);
+                if (count($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, 200);
+        } 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(), 200);
+        } 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, 200);
+        }
+    }
+
+    /**
+     * @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)) {
-			http_response_code(404);
-			$tmpl = new OC_Template('', '404', 'guest');
-			$tmpl->printPage();
-			exit();
-		} else {
-			http_response_code(403);
-			die('403 Forbidden');
-		}
-		if (isset($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 $ex) {
-			    // file is unseekable
-			    header_remove('Accept-Ranges');
-			    header_remove('Content-Range');
-			    http_response_code(200);
-			    self::sendHeaders($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);
-			}
-		}
-	}
-
-	/**
-	 * @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)) {
+            http_response_code(404);
+            $tmpl = new OC_Template('', '404', 'guest');
+            $tmpl->printPage();
+            exit();
+        } else {
+            http_response_code(403);
+            die('403 Forbidden');
+        }
+        if (isset($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 $ex) {
+                // file is unseekable
+                header_remove('Accept-Ranges');
+                header_remove('Content-Range');
+                http_response_code(200);
+                self::sendHeaders($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);
+            }
+        }
+    }
+
+    /**
+     * @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 +21 added lines, -21 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, $contents);
 			}
@@ -391,12 +391,12 @@ 
 		}
 		if ($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/filechunking.php

Indentation +152 added lines, -152 removed lines

@@ -30,156 +30,156 @@
 
 
 class OC_FileChunking {
-	protected $info;
-	protected $cache;
-
-	/**
-	 * TTL of chunks
-	 *
-	 * @var int
-	 */
-	protected $ttl;
-
-	static public function decodeName($name) {
-		preg_match('/(?P<name>.*)-chunking-(?P<transferid>\d+)-(?P<chunkcount>\d+)-(?P<index>\d+)/', $name, $matches);
-		return $matches;
-	}
-
-	/**
-	 * @param string[] $info
-	 */
-	public function __construct($info) {
-		$this->info = $info;
-		$this->ttl = \OC::$server->getConfig()->getSystemValue('cache_chunk_gc_ttl', 86400);
-	}
-
-	public function getPrefix() {
-		$name = $this->info['name'];
-		$transferid = $this->info['transferid'];
-
-		return $name.'-chunking-'.$transferid.'-';
-	}
-
-	protected function getCache() {
-		if (!isset($this->cache)) {
-			$this->cache = new \OC\Cache\File();
-		}
-		return $this->cache;
-	}
-
-	/**
-	 * Stores the given $data under the given $key - the number of stored bytes is returned
-	 *
-	 * @param string $index
-	 * @param resource $data
-	 * @return int
-	 */
-	public function store($index, $data) {
-		$cache = $this->getCache();
-		$name = $this->getPrefix().$index;
-		$cache->set($name, $data, $this->ttl);
-
-		return $cache->size($name);
-	}
-
-	public function isComplete() {
-		$prefix = $this->getPrefix();
-		$cache = $this->getCache();
-		$chunkcount = (int)$this->info['chunkcount'];
-
-		for($i=($chunkcount-1); $i >= 0; $i--) {
-			if (!$cache->hasKey($prefix.$i)) {
-				return false;
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Assembles the chunks into the file specified by the path.
-	 * Chunks are deleted afterwards.
-	 *
-	 * @param resource $f target path
-	 *
-	 * @return integer assembled file size
-	 *
-	 * @throws \OC\InsufficientStorageException when file could not be fully
-	 * assembled due to lack of free space
-	 */
-	public function assemble($f) {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		$count = 0;
-		for ($i = 0; $i < $this->info['chunkcount']; $i++) {
-			$chunk = $cache->get($prefix.$i);
-			// remove after reading to directly save space
-			$cache->remove($prefix.$i);
-			$count += fwrite($f, $chunk);
-			// let php release the memory to work around memory exhausted error with php 5.6
-			$chunk = null;
-		}
-
-		return $count;
-	}
-
-	/**
-	 * Returns the size of the chunks already present
-	 * @return integer size in bytes
-	 */
-	public function getCurrentSize() {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		$total = 0;
-		for ($i = 0; $i < $this->info['chunkcount']; $i++) {
-			$total += $cache->size($prefix.$i);
-		}
-		return $total;
-	}
-
-	/**
-	 * Removes all chunks which belong to this transmission
-	 */
-	public function cleanup() {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		for($i=0; $i < $this->info['chunkcount']; $i++) {
-			$cache->remove($prefix.$i);
-		}
-	}
-
-	/**
-	 * Removes one specific chunk
-	 * @param string $index
-	 */
-	public function remove($index) {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		$cache->remove($prefix.$index);
-	}
-
-	/**
-	 * Assembles the chunks into the file specified by the path.
-	 * Also triggers the relevant hooks and proxies.
-	 *
-	 * @param \OC\Files\Storage\Storage $storage storage
-	 * @param string $path target path relative to the storage
-	 * @return bool true on success or false if file could not be created
-	 *
-	 * @throws \OC\ServerNotAvailableException
-	 */
-	public function file_assemble($storage, $path) {
-		// use file_put_contents as method because that best matches what this function does
-		if (\OC\Files\Filesystem::isValidPath($path)) {
-			$target = $storage->fopen($path, 'w');
-			if ($target) {
-				$count = $this->assemble($target);
-				fclose($target);
-				return $count > 0;
-			} else {
-				return false;
-			}
-		}
-		return false;
-	}
+    protected $info;
+    protected $cache;
+
+    /**
+     * TTL of chunks
+     *
+     * @var int
+     */
+    protected $ttl;
+
+    static public function decodeName($name) {
+        preg_match('/(?P<name>.*)-chunking-(?P<transferid>\d+)-(?P<chunkcount>\d+)-(?P<index>\d+)/', $name, $matches);
+        return $matches;
+    }
+
+    /**
+     * @param string[] $info
+     */
+    public function __construct($info) {
+        $this->info = $info;
+        $this->ttl = \OC::$server->getConfig()->getSystemValue('cache_chunk_gc_ttl', 86400);
+    }
+
+    public function getPrefix() {
+        $name = $this->info['name'];
+        $transferid = $this->info['transferid'];
+
+        return $name.'-chunking-'.$transferid.'-';
+    }
+
+    protected function getCache() {
+        if (!isset($this->cache)) {
+            $this->cache = new \OC\Cache\File();
+        }
+        return $this->cache;
+    }
+
+    /**
+     * Stores the given $data under the given $key - the number of stored bytes is returned
+     *
+     * @param string $index
+     * @param resource $data
+     * @return int
+     */
+    public function store($index, $data) {
+        $cache = $this->getCache();
+        $name = $this->getPrefix().$index;
+        $cache->set($name, $data, $this->ttl);
+
+        return $cache->size($name);
+    }
+
+    public function isComplete() {
+        $prefix = $this->getPrefix();
+        $cache = $this->getCache();
+        $chunkcount = (int)$this->info['chunkcount'];
+
+        for($i=($chunkcount-1); $i >= 0; $i--) {
+            if (!$cache->hasKey($prefix.$i)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Assembles the chunks into the file specified by the path.
+     * Chunks are deleted afterwards.
+     *
+     * @param resource $f target path
+     *
+     * @return integer assembled file size
+     *
+     * @throws \OC\InsufficientStorageException when file could not be fully
+     * assembled due to lack of free space
+     */
+    public function assemble($f) {
+        $cache = $this->getCache();
+        $prefix = $this->getPrefix();
+        $count = 0;
+        for ($i = 0; $i < $this->info['chunkcount']; $i++) {
+            $chunk = $cache->get($prefix.$i);
+            // remove after reading to directly save space
+            $cache->remove($prefix.$i);
+            $count += fwrite($f, $chunk);
+            // let php release the memory to work around memory exhausted error with php 5.6
+            $chunk = null;
+        }
+
+        return $count;
+    }
+
+    /**
+     * Returns the size of the chunks already present
+     * @return integer size in bytes
+     */
+    public function getCurrentSize() {
+        $cache = $this->getCache();
+        $prefix = $this->getPrefix();
+        $total = 0;
+        for ($i = 0; $i < $this->info['chunkcount']; $i++) {
+            $total += $cache->size($prefix.$i);
+        }
+        return $total;
+    }
+
+    /**
+     * Removes all chunks which belong to this transmission
+     */
+    public function cleanup() {
+        $cache = $this->getCache();
+        $prefix = $this->getPrefix();
+        for($i=0; $i < $this->info['chunkcount']; $i++) {
+            $cache->remove($prefix.$i);
+        }
+    }
+
+    /**
+     * Removes one specific chunk
+     * @param string $index
+     */
+    public function remove($index) {
+        $cache = $this->getCache();
+        $prefix = $this->getPrefix();
+        $cache->remove($prefix.$index);
+    }
+
+    /**
+     * Assembles the chunks into the file specified by the path.
+     * Also triggers the relevant hooks and proxies.
+     *
+     * @param \OC\Files\Storage\Storage $storage storage
+     * @param string $path target path relative to the storage
+     * @return bool true on success or false if file could not be created
+     *
+     * @throws \OC\ServerNotAvailableException
+     */
+    public function file_assemble($storage, $path) {
+        // use file_put_contents as method because that best matches what this function does
+        if (\OC\Files\Filesystem::isValidPath($path)) {
+            $target = $storage->fopen($path, 'w');
+            if ($target) {
+                $count = $this->assemble($target);
+                fclose($target);
+                return $count > 0;
+            } else {
+                return false;
+            }
+        }
+        return false;
+    }
 }

Spacing +3 added lines, -3 removed lines

@@ -85,9 +85,9 @@ 
 	public function isComplete() {
 		$prefix = $this->getPrefix();
 		$cache = $this->getCache();
-		$chunkcount = (int)$this->info['chunkcount'];
+		$chunkcount = (int) $this->info['chunkcount'];
 
-		for($i=($chunkcount-1); $i >= 0; $i--) {
+		for ($i = ($chunkcount - 1); $i >= 0; $i--) {
 			if (!$cache->hasKey($prefix.$i)) {
 				return false;
 			}
@@ -143,7 +143,7 @@ 
 	public function cleanup() {
 		$cache = $this->getCache();
 		$prefix = $this->getPrefix();
-		for($i=0; $i < $this->info['chunkcount']; $i++) {
+		for ($i = 0; $i < $this->info['chunkcount']; $i++) {
 			$cache->remove($prefix.$i);
 		}
 	}

lib/private/legacy/hook.php

Indentation +103 added lines, -103 removed lines

@@ -29,118 +29,118 @@
  *
  */
 class OC_Hook{
-	public static $thrownExceptions = [];
+    public static $thrownExceptions = [];
 
-	static private $registered = array();
+    static private $registered = array();
 
-	/**
-	 * connects a function to a hook
-	 *
-	 * @param string $signalClass class name of emitter
-	 * @param string $signalName name of signal
-	 * @param string|object $slotClass class name of slot
-	 * @param string $slotName name of slot
-	 * @return bool
-	 *
-	 * This function makes it very easy to connect to use hooks.
-	 *
-	 * TODO: write example
-	 */
-	static public function connect($signalClass, $signalName, $slotClass, $slotName ) {
-		// If we're trying to connect to an emitting class that isn't
-		// yet registered, register it
-		if( !array_key_exists($signalClass, self::$registered )) {
-			self::$registered[$signalClass] = array();
-		}
-		// If we're trying to connect to an emitting method that isn't
-		// yet registered, register it with the emitting class
-		if( !array_key_exists( $signalName, self::$registered[$signalClass] )) {
-			self::$registered[$signalClass][$signalName] = array();
-		}
+    /**
+     * connects a function to a hook
+     *
+     * @param string $signalClass class name of emitter
+     * @param string $signalName name of signal
+     * @param string|object $slotClass class name of slot
+     * @param string $slotName name of slot
+     * @return bool
+     *
+     * This function makes it very easy to connect to use hooks.
+     *
+     * TODO: write example
+     */
+    static public function connect($signalClass, $signalName, $slotClass, $slotName ) {
+        // If we're trying to connect to an emitting class that isn't
+        // yet registered, register it
+        if( !array_key_exists($signalClass, self::$registered )) {
+            self::$registered[$signalClass] = array();
+        }
+        // If we're trying to connect to an emitting method that isn't
+        // yet registered, register it with the emitting class
+        if( !array_key_exists( $signalName, self::$registered[$signalClass] )) {
+            self::$registered[$signalClass][$signalName] = array();
+        }
 
-		// don't connect hooks twice
-		foreach (self::$registered[$signalClass][$signalName] as $hook) {
-			if ($hook['class'] === $slotClass and $hook['name'] === $slotName) {
-				return false;
-			}
-		}
-		// Connect the hook handler to the requested emitter
-		self::$registered[$signalClass][$signalName][] = array(
-				"class" => $slotClass,
-				"name" => $slotName
-		);
+        // don't connect hooks twice
+        foreach (self::$registered[$signalClass][$signalName] as $hook) {
+            if ($hook['class'] === $slotClass and $hook['name'] === $slotName) {
+                return false;
+            }
+        }
+        // Connect the hook handler to the requested emitter
+        self::$registered[$signalClass][$signalName][] = array(
+                "class" => $slotClass,
+                "name" => $slotName
+        );
 
-		// No chance for failure ;-)
-		return true;
-	}
+        // No chance for failure ;-)
+        return true;
+    }
 
-	/**
-	 * emits a signal
-	 *
-	 * @param string $signalClass class name of emitter
-	 * @param string $signalName name of signal
-	 * @param mixed $params default: array() array with additional data
-	 * @return bool true if slots exists or false if not
-	 * @throws \OC\HintException
-	 * @throws \OC\ServerNotAvailableException Emits a signal. To get data from the slot use references!
-	 *
-	 * TODO: write example
-	 */
-	static public function emit($signalClass, $signalName, $params = []) {
+    /**
+     * emits a signal
+     *
+     * @param string $signalClass class name of emitter
+     * @param string $signalName name of signal
+     * @param mixed $params default: array() array with additional data
+     * @return bool true if slots exists or false if not
+     * @throws \OC\HintException
+     * @throws \OC\ServerNotAvailableException Emits a signal. To get data from the slot use references!
+     *
+     * TODO: write example
+     */
+    static public function emit($signalClass, $signalName, $params = []) {
 
-		// Return false if no hook handlers are listening to this
-		// emitting class
-		if( !array_key_exists($signalClass, self::$registered )) {
-			return false;
-		}
+        // Return false if no hook handlers are listening to this
+        // emitting class
+        if( !array_key_exists($signalClass, self::$registered )) {
+            return false;
+        }
 
-		// Return false if no hook handlers are listening to this
-		// emitting method
-		if( !array_key_exists( $signalName, self::$registered[$signalClass] )) {
-			return false;
-		}
+        // Return false if no hook handlers are listening to this
+        // emitting method
+        if( !array_key_exists( $signalName, self::$registered[$signalClass] )) {
+            return false;
+        }
 
-		// Call all slots
-		foreach( self::$registered[$signalClass][$signalName] as $i ) {
-			try {
-				call_user_func( array( $i["class"], $i["name"] ), $params );
-			} catch (Exception $e){
-				self::$thrownExceptions[] = $e;
-				\OC::$server->getLogger()->logException($e);
-				if($e instanceof \OC\HintException) {
-					throw $e;
-				}
-				if($e instanceof \OC\ServerNotAvailableException) {
-					throw $e;
-				}
-			}
-		}
+        // Call all slots
+        foreach( self::$registered[$signalClass][$signalName] as $i ) {
+            try {
+                call_user_func( array( $i["class"], $i["name"] ), $params );
+            } catch (Exception $e){
+                self::$thrownExceptions[] = $e;
+                \OC::$server->getLogger()->logException($e);
+                if($e instanceof \OC\HintException) {
+                    throw $e;
+                }
+                if($e instanceof \OC\ServerNotAvailableException) {
+                    throw $e;
+                }
+            }
+        }
 
-		return true;
-	}
+        return true;
+    }
 
-	/**
-	 * clear hooks
-	 * @param string $signalClass
-	 * @param string $signalName
-	 */
-	static public function clear($signalClass='', $signalName='') {
-		if ($signalClass) {
-			if ($signalName) {
-				self::$registered[$signalClass][$signalName]=array();
-			}else{
-				self::$registered[$signalClass]=array();
-			}
-		}else{
-			self::$registered=array();
-		}
-	}
+    /**
+     * clear hooks
+     * @param string $signalClass
+     * @param string $signalName
+     */
+    static public function clear($signalClass='', $signalName='') {
+        if ($signalClass) {
+            if ($signalName) {
+                self::$registered[$signalClass][$signalName]=array();
+            }else{
+                self::$registered[$signalClass]=array();
+            }
+        }else{
+            self::$registered=array();
+        }
+    }
 
-	/**
-	 * DO NOT USE!
-	 * For unit tests ONLY!
-	 */
-	static public function getHooks() {
-		return self::$registered;
-	}
+    /**
+     * DO NOT USE!
+     * For unit tests ONLY!
+     */
+    static public function getHooks() {
+        return self::$registered;
+    }
 }

Spacing +17 added lines, -17 removed lines

@@ -28,7 +28,7 @@ 
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
  *
  */
-class OC_Hook{
+class OC_Hook {
 	public static $thrownExceptions = [];
 
 	static private $registered = array();
@@ -46,15 +46,15 @@ 
 	 *
 	 * TODO: write example
 	 */
-	static public function connect($signalClass, $signalName, $slotClass, $slotName ) {
+	static public function connect($signalClass, $signalName, $slotClass, $slotName) {
 		// If we're trying to connect to an emitting class that isn't
 		// yet registered, register it
-		if( !array_key_exists($signalClass, self::$registered )) {
+		if (!array_key_exists($signalClass, self::$registered)) {
 			self::$registered[$signalClass] = array();
 		}
 		// If we're trying to connect to an emitting method that isn't
 		// yet registered, register it with the emitting class
-		if( !array_key_exists( $signalName, self::$registered[$signalClass] )) {
+		if (!array_key_exists($signalName, self::$registered[$signalClass])) {
 			self::$registered[$signalClass][$signalName] = array();
 		}
 
@@ -90,27 +90,27 @@ 
 
 		// Return false if no hook handlers are listening to this
 		// emitting class
-		if( !array_key_exists($signalClass, self::$registered )) {
+		if (!array_key_exists($signalClass, self::$registered)) {
 			return false;
 		}
 
 		// Return false if no hook handlers are listening to this
 		// emitting method
-		if( !array_key_exists( $signalName, self::$registered[$signalClass] )) {
+		if (!array_key_exists($signalName, self::$registered[$signalClass])) {
 			return false;
 		}
 
 		// Call all slots
-		foreach( self::$registered[$signalClass][$signalName] as $i ) {
+		foreach (self::$registered[$signalClass][$signalName] as $i) {
 			try {
-				call_user_func( array( $i["class"], $i["name"] ), $params );
-			} catch (Exception $e){
+				call_user_func(array($i["class"], $i["name"]), $params);
+			} catch (Exception $e) {
 				self::$thrownExceptions[] = $e;
 				\OC::$server->getLogger()->logException($e);
-				if($e instanceof \OC\HintException) {
+				if ($e instanceof \OC\HintException) {
 					throw $e;
 				}
-				if($e instanceof \OC\ServerNotAvailableException) {
+				if ($e instanceof \OC\ServerNotAvailableException) {
 					throw $e;
 				}
 			}
@@ -124,15 +124,15 @@ 
 	 * @param string $signalClass
 	 * @param string $signalName
 	 */
-	static public function clear($signalClass='', $signalName='') {
+	static public function clear($signalClass = '', $signalName = '') {
 		if ($signalClass) {
 			if ($signalName) {
-				self::$registered[$signalClass][$signalName]=array();
-			}else{
-				self::$registered[$signalClass]=array();
+				self::$registered[$signalClass][$signalName] = array();
+			} else {
+				self::$registered[$signalClass] = array();
 			}
-		}else{
-			self::$registered=array();
+		} else {
+			self::$registered = array();
 		}
 	}
 

Braces +2 added lines, -2 removed lines

@@ -128,10 +128,10 @@
 		if ($signalClass) {
 			if ($signalName) {
 				self::$registered[$signalClass][$signalName]=array();
-			}else{
+			} else{
 				self::$registered[$signalClass]=array();
 			}
-		}else{
+		} else{
 			self::$registered=array();
 		}
 	}

lib/private/legacy/helper.php

Braces +3 added lines, -2 removed lines

@@ -271,8 +271,9 @@
 		}
 		foreach ($dirs as $dir) {
 			foreach ($exts as $ext) {
-				if ($check_fn("$dir/$name" . $ext))
-					return true;
+				if ($check_fn("$dir/$name" . $ext)) {
+									return true;
+				}
 			}
 		}
 		return false;

Spacing +12 added lines, -12 removed lines

@@ -98,7 +98,7 @@ 
 	public static function computerFileSize($str) {
 		$str = strtolower($str);
 		if (is_numeric($str)) {
-			return (float)$str;
+			return (float) $str;
 		}
 
 		$bytes_array = array(
@@ -115,7 +115,7 @@ 
 			'p' => 1024 * 1024 * 1024 * 1024 * 1024,
 		);
 
-		$bytes = (float)$str;
+		$bytes = (float) $str;
 
 		if (preg_match('#([kmgtp]?b?)$#si', $str, $matches) && !empty($bytes_array[$matches[1]])) {
 			$bytes *= $bytes_array[$matches[1]];
@@ -229,7 +229,7 @@ 
 		}
 		foreach ($dirs as $dir) {
 			foreach ($exts as $ext) {
-				if ($check_fn("$dir/$name" . $ext))
+				if ($check_fn("$dir/$name".$ext))
 					return true;
 			}
 		}
@@ -300,7 +300,7 @@ 
 			$ext = '';
 		}
 
-		$newpath = $path . '/' . $filename;
+		$newpath = $path.'/'.$filename;
 		if ($view->file_exists($newpath)) {
 			if (preg_match_all('/\((\d+)\)/', $name, $matches, PREG_OFFSET_CAPTURE)) {
 				//Replace the last "(number)" with "(number+1)"
@@ -316,11 +316,11 @@ 
 			do {
 				if ($offset) {
 					//Replace the last "(number)" with "(number+1)"
-					$newname = substr_replace($name, '(' . $counter . ')', $offset, $match_length);
+					$newname = substr_replace($name, '('.$counter.')', $offset, $match_length);
 				} else {
-					$newname = $name . ' (' . $counter . ')';
+					$newname = $name.' ('.$counter.')';
 				}
-				$newpath = $path . '/' . $newname . $ext;
+				$newpath = $path.'/'.$newname.$ext;
 				$counter++;
 			} while ($view->file_exists($newpath));
 		}
@@ -383,7 +383,7 @@ 
 	 * @return int number of bytes representing
 	 */
 	public static function maxUploadFilesize($dir, $freeSpace = null) {
-		if (is_null($freeSpace) || $freeSpace < 0){
+		if (is_null($freeSpace) || $freeSpace < 0) {
 			$freeSpace = self::freeSpace($dir);
 		}
 		return min($freeSpace, self::uploadLimit());
@@ -401,7 +401,7 @@ 
 			$freeSpace = max($freeSpace, 0);
 			return $freeSpace;
 		} else {
-			return (INF > 0)? INF: PHP_INT_MAX; // work around https://bugs.php.net/bug.php?id=69188
+			return (INF > 0) ? INF: PHP_INT_MAX; // work around https://bugs.php.net/bug.php?id=69188
 		}
 	}
 
@@ -414,9 +414,9 @@ 
 		$ini = \OC::$server->getIniWrapper();
 		$upload_max_filesize = OCP\Util::computerFileSize($ini->get('upload_max_filesize'));
 		$post_max_size = OCP\Util::computerFileSize($ini->get('post_max_size'));
-		if ((int)$upload_max_filesize === 0 and (int)$post_max_size === 0) {
+		if ((int) $upload_max_filesize === 0 and (int) $post_max_size === 0) {
 			return INF;
-		} elseif ((int)$upload_max_filesize === 0 or (int)$post_max_size === 0) {
+		} elseif ((int) $upload_max_filesize === 0 or (int) $post_max_size === 0) {
 			return max($upload_max_filesize, $post_max_size); //only the non 0 value counts
 		} else {
 			return min($upload_max_filesize, $post_max_size);
@@ -543,7 +543,7 @@ 
 		$ownerId = $storage->getOwner($path);
 		$ownerDisplayName = '';
 		$owner = \OC::$server->getUserManager()->get($ownerId);
-		if($owner) {
+		if ($owner) {
 			$ownerDisplayName = $owner->getDisplayName();
 		}
 

Indentation +548 added lines, -548 removed lines

@@ -49,552 +49,552 @@
  * Collection of useful functions
  */
 class OC_Helper {
-	private static $templateManager;
-
-	/**
-	 * Make a human file size
-	 * @param int $bytes file size in bytes
-	 * @return string a human readable file size
-	 *
-	 * Makes 2048 to 2 kB.
-	 */
-	public static function humanFileSize($bytes) {
-		if ($bytes < 0) {
-			return "?";
-		}
-		if ($bytes < 1024) {
-			return "$bytes B";
-		}
-		$bytes = round($bytes / 1024, 0);
-		if ($bytes < 1024) {
-			return "$bytes KB";
-		}
-		$bytes = round($bytes / 1024, 1);
-		if ($bytes < 1024) {
-			return "$bytes MB";
-		}
-		$bytes = round($bytes / 1024, 1);
-		if ($bytes < 1024) {
-			return "$bytes GB";
-		}
-		$bytes = round($bytes / 1024, 1);
-		if ($bytes < 1024) {
-			return "$bytes TB";
-		}
-
-		$bytes = round($bytes / 1024, 1);
-		return "$bytes PB";
-	}
-
-	/**
-	 * Make a computer file size
-	 * @param string $str file size in human readable format
-	 * @return float|bool a file size in bytes
-	 *
-	 * Makes 2kB to 2048.
-	 *
-	 * Inspired by: http://www.php.net/manual/en/function.filesize.php#92418
-	 */
-	public static function computerFileSize($str) {
-		$str = strtolower($str);
-		if (is_numeric($str)) {
-			return (float)$str;
-		}
-
-		$bytes_array = array(
-			'b' => 1,
-			'k' => 1024,
-			'kb' => 1024,
-			'mb' => 1024 * 1024,
-			'm' => 1024 * 1024,
-			'gb' => 1024 * 1024 * 1024,
-			'g' => 1024 * 1024 * 1024,
-			'tb' => 1024 * 1024 * 1024 * 1024,
-			't' => 1024 * 1024 * 1024 * 1024,
-			'pb' => 1024 * 1024 * 1024 * 1024 * 1024,
-			'p' => 1024 * 1024 * 1024 * 1024 * 1024,
-		);
-
-		$bytes = (float)$str;
-
-		if (preg_match('#([kmgtp]?b?)$#si', $str, $matches) && !empty($bytes_array[$matches[1]])) {
-			$bytes *= $bytes_array[$matches[1]];
-		} else {
-			return false;
-		}
-
-		$bytes = round($bytes);
-
-		return $bytes;
-	}
-
-	/**
-	 * Recursive copying of folders
-	 * @param string $src source folder
-	 * @param string $dest target folder
-	 *
-	 */
-	static function copyr($src, $dest) {
-		if (is_dir($src)) {
-			if (!is_dir($dest)) {
-				mkdir($dest);
-			}
-			$files = scandir($src);
-			foreach ($files as $file) {
-				if ($file != "." && $file != "..") {
-					self::copyr("$src/$file", "$dest/$file");
-				}
-			}
-		} elseif (file_exists($src) && !\OC\Files\Filesystem::isFileBlacklisted($src)) {
-			copy($src, $dest);
-		}
-	}
-
-	/**
-	 * Recursive deletion of folders
-	 * @param string $dir path to the folder
-	 * @param bool $deleteSelf if set to false only the content of the folder will be deleted
-	 * @return bool
-	 */
-	static function rmdirr($dir, $deleteSelf = true) {
-		if (is_dir($dir)) {
-			$files = new RecursiveIteratorIterator(
-				new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS),
-				RecursiveIteratorIterator::CHILD_FIRST
-			);
-
-			foreach ($files as $fileInfo) {
-				/** @var SplFileInfo $fileInfo */
-				if ($fileInfo->isLink()) {
-					unlink($fileInfo->getPathname());
-				} else if ($fileInfo->isDir()) {
-					rmdir($fileInfo->getRealPath());
-				} else {
-					unlink($fileInfo->getRealPath());
-				}
-			}
-			if ($deleteSelf) {
-				rmdir($dir);
-			}
-		} elseif (file_exists($dir)) {
-			if ($deleteSelf) {
-				unlink($dir);
-			}
-		}
-		if (!$deleteSelf) {
-			return true;
-		}
-
-		return !file_exists($dir);
-	}
-
-	/**
-	 * @deprecated 18.0.0
-	 * @return \OC\Files\Type\TemplateManager
-	 */
-	static public function getFileTemplateManager() {
-		if (!self::$templateManager) {
-			self::$templateManager = new \OC\Files\Type\TemplateManager();
-		}
-		return self::$templateManager;
-	}
-
-	/**
-	 * detect if a given program is found in the search PATH
-	 *
-	 * @param string $name
-	 * @param bool $path
-	 * @internal param string $program name
-	 * @internal param string $optional search path, defaults to $PATH
-	 * @return bool    true if executable program found in path
-	 */
-	public static function canExecute($name, $path = false) {
-		// path defaults to PATH from environment if not set
-		if ($path === false) {
-			$path = getenv("PATH");
-		}
-		// we look for an executable file of that name
-		$exts = [""];
-		$check_fn = "is_executable";
-		// Default check will be done with $path directories :
-		$dirs = explode(PATH_SEPARATOR, $path);
-		// WARNING : We have to check if open_basedir is enabled :
-		$obd = OC::$server->getIniWrapper()->getString('open_basedir');
-		if ($obd != "none") {
-			$obd_values = explode(PATH_SEPARATOR, $obd);
-			if (count($obd_values) > 0 and $obd_values[0]) {
-				// open_basedir is in effect !
-				// We need to check if the program is in one of these dirs :
-				$dirs = $obd_values;
-			}
-		}
-		foreach ($dirs as $dir) {
-			foreach ($exts as $ext) {
-				if ($check_fn("$dir/$name" . $ext))
-					return true;
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * copy the contents of one stream to another
-	 *
-	 * @param resource $source
-	 * @param resource $target
-	 * @return array the number of bytes copied and result
-	 */
-	public static function streamCopy($source, $target) {
-		if (!$source or !$target) {
-			return array(0, false);
-		}
-		$bufSize = 8192;
-		$result = true;
-		$count = 0;
-		while (!feof($source)) {
-			$buf = fread($source, $bufSize);
-			$bytesWritten = fwrite($target, $buf);
-			if ($bytesWritten !== false) {
-				$count += $bytesWritten;
-			}
-			// note: strlen is expensive so only use it when necessary,
-			// on the last block
-			if ($bytesWritten === false
-				|| ($bytesWritten < $bufSize && $bytesWritten < strlen($buf))
-			) {
-				// write error, could be disk full ?
-				$result = false;
-				break;
-			}
-		}
-		return array($count, $result);
-	}
-
-	/**
-	 * Adds a suffix to the name in case the file exists
-	 *
-	 * @param string $path
-	 * @param string $filename
-	 * @return string
-	 */
-	public static function buildNotExistingFileName($path, $filename) {
-		$view = \OC\Files\Filesystem::getView();
-		return self::buildNotExistingFileNameForView($path, $filename, $view);
-	}
-
-	/**
-	 * Adds a suffix to the name in case the file exists
-	 *
-	 * @param string $path
-	 * @param string $filename
-	 * @return string
-	 */
-	public static function buildNotExistingFileNameForView($path, $filename, \OC\Files\View $view) {
-		if ($path === '/') {
-			$path = '';
-		}
-		if ($pos = strrpos($filename, '.')) {
-			$name = substr($filename, 0, $pos);
-			$ext = substr($filename, $pos);
-		} else {
-			$name = $filename;
-			$ext = '';
-		}
-
-		$newpath = $path . '/' . $filename;
-		if ($view->file_exists($newpath)) {
-			if (preg_match_all('/\((\d+)\)/', $name, $matches, PREG_OFFSET_CAPTURE)) {
-				//Replace the last "(number)" with "(number+1)"
-				$last_match = count($matches[0]) - 1;
-				$counter = $matches[1][$last_match][0] + 1;
-				$offset = $matches[0][$last_match][1];
-				$match_length = strlen($matches[0][$last_match][0]);
-			} else {
-				$counter = 2;
-				$match_length = 0;
-				$offset = false;
-			}
-			do {
-				if ($offset) {
-					//Replace the last "(number)" with "(number+1)"
-					$newname = substr_replace($name, '(' . $counter . ')', $offset, $match_length);
-				} else {
-					$newname = $name . ' (' . $counter . ')';
-				}
-				$newpath = $path . '/' . $newname . $ext;
-				$counter++;
-			} while ($view->file_exists($newpath));
-		}
-
-		return $newpath;
-	}
-
-	/**
-	 * Returns an array with all keys from input lowercased or uppercased. Numbered indices are left as is.
-	 *
-	 * @param array $input The array to work on
-	 * @param int $case Either MB_CASE_UPPER or MB_CASE_LOWER (default)
-	 * @param string $encoding The encoding parameter is the character encoding. Defaults to UTF-8
-	 * @return array
-	 *
-	 * Returns an array with all keys from input lowercased or uppercased. Numbered indices are left as is.
-	 * based on http://www.php.net/manual/en/function.array-change-key-case.php#107715
-	 *
-	 */
-	public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8') {
-		$case = ($case != MB_CASE_UPPER) ? MB_CASE_LOWER : MB_CASE_UPPER;
-		$ret = array();
-		foreach ($input as $k => $v) {
-			$ret[mb_convert_case($k, $case, $encoding)] = $v;
-		}
-		return $ret;
-	}
-
-	/**
-	 * performs a search in a nested array
-	 * @param array $haystack the array to be searched
-	 * @param string $needle the search string
-	 * @param mixed $index optional, only search this key name
-	 * @return mixed the key of the matching field, otherwise false
-	 *
-	 * performs a search in a nested array
-	 *
-	 * taken from http://www.php.net/manual/en/function.array-search.php#97645
-	 */
-	public static function recursiveArraySearch($haystack, $needle, $index = null) {
-		$aIt = new RecursiveArrayIterator($haystack);
-		$it = new RecursiveIteratorIterator($aIt);
-
-		while ($it->valid()) {
-			if (((isset($index) AND ($it->key() == $index)) OR !isset($index)) AND ($it->current() == $needle)) {
-				return $aIt->key();
-			}
-
-			$it->next();
-		}
-
-		return false;
-	}
-
-	/**
-	 * calculates the maximum upload size respecting system settings, free space and user quota
-	 *
-	 * @param string $dir the current folder where the user currently operates
-	 * @param int $freeSpace the number of bytes free on the storage holding $dir, if not set this will be received from the storage directly
-	 * @return int number of bytes representing
-	 */
-	public static function maxUploadFilesize($dir, $freeSpace = null) {
-		if (is_null($freeSpace) || $freeSpace < 0){
-			$freeSpace = self::freeSpace($dir);
-		}
-		return min($freeSpace, self::uploadLimit());
-	}
-
-	/**
-	 * Calculate free space left within user quota
-	 *
-	 * @param string $dir the current folder where the user currently operates
-	 * @return int number of bytes representing
-	 */
-	public static function freeSpace($dir) {
-		$freeSpace = \OC\Files\Filesystem::free_space($dir);
-		if ($freeSpace < \OCP\Files\FileInfo::SPACE_UNLIMITED) {
-			$freeSpace = max($freeSpace, 0);
-			return $freeSpace;
-		} else {
-			return (INF > 0)? INF: PHP_INT_MAX; // work around https://bugs.php.net/bug.php?id=69188
-		}
-	}
-
-	/**
-	 * Calculate PHP upload limit
-	 *
-	 * @return int PHP upload file size limit
-	 */
-	public static function uploadLimit() {
-		$ini = \OC::$server->getIniWrapper();
-		$upload_max_filesize = OCP\Util::computerFileSize($ini->get('upload_max_filesize'));
-		$post_max_size = OCP\Util::computerFileSize($ini->get('post_max_size'));
-		if ((int)$upload_max_filesize === 0 and (int)$post_max_size === 0) {
-			return INF;
-		} elseif ((int)$upload_max_filesize === 0 or (int)$post_max_size === 0) {
-			return max($upload_max_filesize, $post_max_size); //only the non 0 value counts
-		} else {
-			return min($upload_max_filesize, $post_max_size);
-		}
-	}
-
-	/**
-	 * Checks if a function is available
-	 *
-	 * @param string $function_name
-	 * @return bool
-	 */
-	public static function is_function_enabled($function_name) {
-		if (!function_exists($function_name)) {
-			return false;
-		}
-		$ini = \OC::$server->getIniWrapper();
-		$disabled = explode(',', $ini->get('disable_functions') ?: '');
-		$disabled = array_map('trim', $disabled);
-		if (in_array($function_name, $disabled)) {
-			return false;
-		}
-		$disabled = explode(',', $ini->get('suhosin.executor.func.blacklist') ?: '');
-		$disabled = array_map('trim', $disabled);
-		if (in_array($function_name, $disabled)) {
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	 * Try to find a program
-	 *
-	 * @param string $program
-	 * @return null|string
-	 */
-	public static function findBinaryPath($program) {
-		$memcache = \OC::$server->getMemCacheFactory()->createDistributed('findBinaryPath');
-		if ($memcache->hasKey($program)) {
-			return $memcache->get($program);
-		}
-		$result = null;
-		if (self::is_function_enabled('exec')) {
-			$exeSniffer = new ExecutableFinder();
-			// Returns null if nothing is found
-			$result = $exeSniffer->find($program, null, ['/usr/local/sbin', '/usr/local/bin', '/usr/sbin', '/usr/bin', '/sbin', '/bin', '/opt/bin']);
-		}
-		// store the value for 5 minutes
-		$memcache->set($program, $result, 300);
-		return $result;
-	}
-
-	/**
-	 * Calculate the disc space for the given path
-	 *
-	 * @param string $path
-	 * @param \OCP\Files\FileInfo $rootInfo (optional)
-	 * @return array
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	public static function getStorageInfo($path, $rootInfo = null) {
-		// return storage info without adding mount points
-		$includeExtStorage = \OC::$server->getSystemConfig()->getValue('quota_include_external_storage', false);
-
-		if (!$rootInfo) {
-			$rootInfo = \OC\Files\Filesystem::getFileInfo($path, $includeExtStorage ? 'ext' : false);
-		}
-		if (!$rootInfo instanceof \OCP\Files\FileInfo) {
-			throw new \OCP\Files\NotFoundException();
-		}
-		$used = $rootInfo->getSize();
-		if ($used < 0) {
-			$used = 0;
-		}
-		$quota = \OCP\Files\FileInfo::SPACE_UNLIMITED;
-		$storage = $rootInfo->getStorage();
-		$sourceStorage = $storage;
-		if ($storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage')) {
-			$includeExtStorage = false;
-			$sourceStorage = $storage->getSourceStorage();
-		}
-		if ($includeExtStorage) {
-			if ($storage->instanceOfStorage('\OC\Files\Storage\Home')
-				|| $storage->instanceOfStorage('\OC\Files\ObjectStore\HomeObjectStoreStorage')
-			) {
-				/** @var \OC\Files\Storage\Home $storage */
-				$userInstance = $storage->getUser();
-				$user = ($userInstance === null) ? null : $userInstance->getUID();
-			} else {
-				$user = \OC::$server->getUserSession()->getUser()->getUID();
-			}
-			if ($user) {
-				$quota = OC_Util::getUserQuota($user);
-			} else {
-				$quota = \OCP\Files\FileInfo::SPACE_UNLIMITED;
-			}
-			if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) {
-				// always get free space / total space from root + mount points
-				return self::getGlobalStorageInfo();
-			}
-		}
-
-		// TODO: need a better way to get total space from storage
-		if ($sourceStorage->instanceOfStorage('\OC\Files\Storage\Wrapper\Quota')) {
-			/** @var \OC\Files\Storage\Wrapper\Quota $storage */
-			$quota = $sourceStorage->getQuota();
-		}
-		$free = $sourceStorage->free_space($rootInfo->getInternalPath());
-		if ($free >= 0) {
-			$total = $free + $used;
-		} else {
-			$total = $free; //either unknown or unlimited
-		}
-		if ($total > 0) {
-			if ($quota > 0 && $total > $quota) {
-				$total = $quota;
-			}
-			// prevent division by zero or error codes (negative values)
-			$relative = round(($used / $total) * 10000) / 100;
-		} else {
-			$relative = 0;
-		}
-
-		$ownerId = $storage->getOwner($path);
-		$ownerDisplayName = '';
-		$owner = \OC::$server->getUserManager()->get($ownerId);
-		if($owner) {
-			$ownerDisplayName = $owner->getDisplayName();
-		}
-
-		return [
-			'free' => $free,
-			'used' => $used,
-			'quota' => $quota,
-			'total' => $total,
-			'relative' => $relative,
-			'owner' => $ownerId,
-			'ownerDisplayName' => $ownerDisplayName,
-		];
-	}
-
-	/**
-	 * Get storage info including all mount points and quota
-	 *
-	 * @return array
-	 */
-	private static function getGlobalStorageInfo() {
-		$quota = OC_Util::getUserQuota(\OCP\User::getUser());
-
-		$rootInfo = \OC\Files\Filesystem::getFileInfo('', 'ext');
-		$used = $rootInfo['size'];
-		if ($used < 0) {
-			$used = 0;
-		}
-
-		$total = $quota;
-		$free = $quota - $used;
-
-		if ($total > 0) {
-			if ($quota > 0 && $total > $quota) {
-				$total = $quota;
-			}
-			// prevent division by zero or error codes (negative values)
-			$relative = round(($used / $total) * 10000) / 100;
-		} else {
-			$relative = 0;
-		}
-
-		return array('free' => $free, 'used' => $used, 'total' => $total, 'relative' => $relative);
-
-	}
-
-	/**
-	 * Returns whether the config file is set manually to read-only
-	 * @return bool
-	 */
-	public static function isReadOnlyConfigEnabled() {
-		return \OC::$server->getConfig()->getSystemValue('config_is_read_only', false);
-	}
+    private static $templateManager;
+
+    /**
+     * Make a human file size
+     * @param int $bytes file size in bytes
+     * @return string a human readable file size
+     *
+     * Makes 2048 to 2 kB.
+     */
+    public static function humanFileSize($bytes) {
+        if ($bytes < 0) {
+            return "?";
+        }
+        if ($bytes < 1024) {
+            return "$bytes B";
+        }
+        $bytes = round($bytes / 1024, 0);
+        if ($bytes < 1024) {
+            return "$bytes KB";
+        }
+        $bytes = round($bytes / 1024, 1);
+        if ($bytes < 1024) {
+            return "$bytes MB";
+        }
+        $bytes = round($bytes / 1024, 1);
+        if ($bytes < 1024) {
+            return "$bytes GB";
+        }
+        $bytes = round($bytes / 1024, 1);
+        if ($bytes < 1024) {
+            return "$bytes TB";
+        }
+
+        $bytes = round($bytes / 1024, 1);
+        return "$bytes PB";
+    }
+
+    /**
+     * Make a computer file size
+     * @param string $str file size in human readable format
+     * @return float|bool a file size in bytes
+     *
+     * Makes 2kB to 2048.
+     *
+     * Inspired by: http://www.php.net/manual/en/function.filesize.php#92418
+     */
+    public static function computerFileSize($str) {
+        $str = strtolower($str);
+        if (is_numeric($str)) {
+            return (float)$str;
+        }
+
+        $bytes_array = array(
+            'b' => 1,
+            'k' => 1024,
+            'kb' => 1024,
+            'mb' => 1024 * 1024,
+            'm' => 1024 * 1024,
+            'gb' => 1024 * 1024 * 1024,
+            'g' => 1024 * 1024 * 1024,
+            'tb' => 1024 * 1024 * 1024 * 1024,
+            't' => 1024 * 1024 * 1024 * 1024,
+            'pb' => 1024 * 1024 * 1024 * 1024 * 1024,
+            'p' => 1024 * 1024 * 1024 * 1024 * 1024,
+        );
+
+        $bytes = (float)$str;
+
+        if (preg_match('#([kmgtp]?b?)$#si', $str, $matches) && !empty($bytes_array[$matches[1]])) {
+            $bytes *= $bytes_array[$matches[1]];
+        } else {
+            return false;
+        }
+
+        $bytes = round($bytes);
+
+        return $bytes;
+    }
+
+    /**
+     * Recursive copying of folders
+     * @param string $src source folder
+     * @param string $dest target folder
+     *
+     */
+    static function copyr($src, $dest) {
+        if (is_dir($src)) {
+            if (!is_dir($dest)) {
+                mkdir($dest);
+            }
+            $files = scandir($src);
+            foreach ($files as $file) {
+                if ($file != "." && $file != "..") {
+                    self::copyr("$src/$file", "$dest/$file");
+                }
+            }
+        } elseif (file_exists($src) && !\OC\Files\Filesystem::isFileBlacklisted($src)) {
+            copy($src, $dest);
+        }
+    }
+
+    /**
+     * Recursive deletion of folders
+     * @param string $dir path to the folder
+     * @param bool $deleteSelf if set to false only the content of the folder will be deleted
+     * @return bool
+     */
+    static function rmdirr($dir, $deleteSelf = true) {
+        if (is_dir($dir)) {
+            $files = new RecursiveIteratorIterator(
+                new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS),
+                RecursiveIteratorIterator::CHILD_FIRST
+            );
+
+            foreach ($files as $fileInfo) {
+                /** @var SplFileInfo $fileInfo */
+                if ($fileInfo->isLink()) {
+                    unlink($fileInfo->getPathname());
+                } else if ($fileInfo->isDir()) {
+                    rmdir($fileInfo->getRealPath());
+                } else {
+                    unlink($fileInfo->getRealPath());
+                }
+            }
+            if ($deleteSelf) {
+                rmdir($dir);
+            }
+        } elseif (file_exists($dir)) {
+            if ($deleteSelf) {
+                unlink($dir);
+            }
+        }
+        if (!$deleteSelf) {
+            return true;
+        }
+
+        return !file_exists($dir);
+    }
+
+    /**
+     * @deprecated 18.0.0
+     * @return \OC\Files\Type\TemplateManager
+     */
+    static public function getFileTemplateManager() {
+        if (!self::$templateManager) {
+            self::$templateManager = new \OC\Files\Type\TemplateManager();
+        }
+        return self::$templateManager;
+    }
+
+    /**
+     * detect if a given program is found in the search PATH
+     *
+     * @param string $name
+     * @param bool $path
+     * @internal param string $program name
+     * @internal param string $optional search path, defaults to $PATH
+     * @return bool    true if executable program found in path
+     */
+    public static function canExecute($name, $path = false) {
+        // path defaults to PATH from environment if not set
+        if ($path === false) {
+            $path = getenv("PATH");
+        }
+        // we look for an executable file of that name
+        $exts = [""];
+        $check_fn = "is_executable";
+        // Default check will be done with $path directories :
+        $dirs = explode(PATH_SEPARATOR, $path);
+        // WARNING : We have to check if open_basedir is enabled :
+        $obd = OC::$server->getIniWrapper()->getString('open_basedir');
+        if ($obd != "none") {
+            $obd_values = explode(PATH_SEPARATOR, $obd);
+            if (count($obd_values) > 0 and $obd_values[0]) {
+                // open_basedir is in effect !
+                // We need to check if the program is in one of these dirs :
+                $dirs = $obd_values;
+            }
+        }
+        foreach ($dirs as $dir) {
+            foreach ($exts as $ext) {
+                if ($check_fn("$dir/$name" . $ext))
+                    return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * copy the contents of one stream to another
+     *
+     * @param resource $source
+     * @param resource $target
+     * @return array the number of bytes copied and result
+     */
+    public static function streamCopy($source, $target) {
+        if (!$source or !$target) {
+            return array(0, false);
+        }
+        $bufSize = 8192;
+        $result = true;
+        $count = 0;
+        while (!feof($source)) {
+            $buf = fread($source, $bufSize);
+            $bytesWritten = fwrite($target, $buf);
+            if ($bytesWritten !== false) {
+                $count += $bytesWritten;
+            }
+            // note: strlen is expensive so only use it when necessary,
+            // on the last block
+            if ($bytesWritten === false
+                || ($bytesWritten < $bufSize && $bytesWritten < strlen($buf))
+            ) {
+                // write error, could be disk full ?
+                $result = false;
+                break;
+            }
+        }
+        return array($count, $result);
+    }
+
+    /**
+     * Adds a suffix to the name in case the file exists
+     *
+     * @param string $path
+     * @param string $filename
+     * @return string
+     */
+    public static function buildNotExistingFileName($path, $filename) {
+        $view = \OC\Files\Filesystem::getView();
+        return self::buildNotExistingFileNameForView($path, $filename, $view);
+    }
+
+    /**
+     * Adds a suffix to the name in case the file exists
+     *
+     * @param string $path
+     * @param string $filename
+     * @return string
+     */
+    public static function buildNotExistingFileNameForView($path, $filename, \OC\Files\View $view) {
+        if ($path === '/') {
+            $path = '';
+        }
+        if ($pos = strrpos($filename, '.')) {
+            $name = substr($filename, 0, $pos);
+            $ext = substr($filename, $pos);
+        } else {
+            $name = $filename;
+            $ext = '';
+        }
+
+        $newpath = $path . '/' . $filename;
+        if ($view->file_exists($newpath)) {
+            if (preg_match_all('/\((\d+)\)/', $name, $matches, PREG_OFFSET_CAPTURE)) {
+                //Replace the last "(number)" with "(number+1)"
+                $last_match = count($matches[0]) - 1;
+                $counter = $matches[1][$last_match][0] + 1;
+                $offset = $matches[0][$last_match][1];
+                $match_length = strlen($matches[0][$last_match][0]);
+            } else {
+                $counter = 2;
+                $match_length = 0;
+                $offset = false;
+            }
+            do {
+                if ($offset) {
+                    //Replace the last "(number)" with "(number+1)"
+                    $newname = substr_replace($name, '(' . $counter . ')', $offset, $match_length);
+                } else {
+                    $newname = $name . ' (' . $counter . ')';
+                }
+                $newpath = $path . '/' . $newname . $ext;
+                $counter++;
+            } while ($view->file_exists($newpath));
+        }
+
+        return $newpath;
+    }
+
+    /**
+     * Returns an array with all keys from input lowercased or uppercased. Numbered indices are left as is.
+     *
+     * @param array $input The array to work on
+     * @param int $case Either MB_CASE_UPPER or MB_CASE_LOWER (default)
+     * @param string $encoding The encoding parameter is the character encoding. Defaults to UTF-8
+     * @return array
+     *
+     * Returns an array with all keys from input lowercased or uppercased. Numbered indices are left as is.
+     * based on http://www.php.net/manual/en/function.array-change-key-case.php#107715
+     *
+     */
+    public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8') {
+        $case = ($case != MB_CASE_UPPER) ? MB_CASE_LOWER : MB_CASE_UPPER;
+        $ret = array();
+        foreach ($input as $k => $v) {
+            $ret[mb_convert_case($k, $case, $encoding)] = $v;
+        }
+        return $ret;
+    }
+
+    /**
+     * performs a search in a nested array
+     * @param array $haystack the array to be searched
+     * @param string $needle the search string
+     * @param mixed $index optional, only search this key name
+     * @return mixed the key of the matching field, otherwise false
+     *
+     * performs a search in a nested array
+     *
+     * taken from http://www.php.net/manual/en/function.array-search.php#97645
+     */
+    public static function recursiveArraySearch($haystack, $needle, $index = null) {
+        $aIt = new RecursiveArrayIterator($haystack);
+        $it = new RecursiveIteratorIterator($aIt);
+
+        while ($it->valid()) {
+            if (((isset($index) AND ($it->key() == $index)) OR !isset($index)) AND ($it->current() == $needle)) {
+                return $aIt->key();
+            }
+
+            $it->next();
+        }
+
+        return false;
+    }
+
+    /**
+     * calculates the maximum upload size respecting system settings, free space and user quota
+     *
+     * @param string $dir the current folder where the user currently operates
+     * @param int $freeSpace the number of bytes free on the storage holding $dir, if not set this will be received from the storage directly
+     * @return int number of bytes representing
+     */
+    public static function maxUploadFilesize($dir, $freeSpace = null) {
+        if (is_null($freeSpace) || $freeSpace < 0){
+            $freeSpace = self::freeSpace($dir);
+        }
+        return min($freeSpace, self::uploadLimit());
+    }
+
+    /**
+     * Calculate free space left within user quota
+     *
+     * @param string $dir the current folder where the user currently operates
+     * @return int number of bytes representing
+     */
+    public static function freeSpace($dir) {
+        $freeSpace = \OC\Files\Filesystem::free_space($dir);
+        if ($freeSpace < \OCP\Files\FileInfo::SPACE_UNLIMITED) {
+            $freeSpace = max($freeSpace, 0);
+            return $freeSpace;
+        } else {
+            return (INF > 0)? INF: PHP_INT_MAX; // work around https://bugs.php.net/bug.php?id=69188
+        }
+    }
+
+    /**
+     * Calculate PHP upload limit
+     *
+     * @return int PHP upload file size limit
+     */
+    public static function uploadLimit() {
+        $ini = \OC::$server->getIniWrapper();
+        $upload_max_filesize = OCP\Util::computerFileSize($ini->get('upload_max_filesize'));
+        $post_max_size = OCP\Util::computerFileSize($ini->get('post_max_size'));
+        if ((int)$upload_max_filesize === 0 and (int)$post_max_size === 0) {
+            return INF;
+        } elseif ((int)$upload_max_filesize === 0 or (int)$post_max_size === 0) {
+            return max($upload_max_filesize, $post_max_size); //only the non 0 value counts
+        } else {
+            return min($upload_max_filesize, $post_max_size);
+        }
+    }
+
+    /**
+     * Checks if a function is available
+     *
+     * @param string $function_name
+     * @return bool
+     */
+    public static function is_function_enabled($function_name) {
+        if (!function_exists($function_name)) {
+            return false;
+        }
+        $ini = \OC::$server->getIniWrapper();
+        $disabled = explode(',', $ini->get('disable_functions') ?: '');
+        $disabled = array_map('trim', $disabled);
+        if (in_array($function_name, $disabled)) {
+            return false;
+        }
+        $disabled = explode(',', $ini->get('suhosin.executor.func.blacklist') ?: '');
+        $disabled = array_map('trim', $disabled);
+        if (in_array($function_name, $disabled)) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Try to find a program
+     *
+     * @param string $program
+     * @return null|string
+     */
+    public static function findBinaryPath($program) {
+        $memcache = \OC::$server->getMemCacheFactory()->createDistributed('findBinaryPath');
+        if ($memcache->hasKey($program)) {
+            return $memcache->get($program);
+        }
+        $result = null;
+        if (self::is_function_enabled('exec')) {
+            $exeSniffer = new ExecutableFinder();
+            // Returns null if nothing is found
+            $result = $exeSniffer->find($program, null, ['/usr/local/sbin', '/usr/local/bin', '/usr/sbin', '/usr/bin', '/sbin', '/bin', '/opt/bin']);
+        }
+        // store the value for 5 minutes
+        $memcache->set($program, $result, 300);
+        return $result;
+    }
+
+    /**
+     * Calculate the disc space for the given path
+     *
+     * @param string $path
+     * @param \OCP\Files\FileInfo $rootInfo (optional)
+     * @return array
+     * @throws \OCP\Files\NotFoundException
+     */
+    public static function getStorageInfo($path, $rootInfo = null) {
+        // return storage info without adding mount points
+        $includeExtStorage = \OC::$server->getSystemConfig()->getValue('quota_include_external_storage', false);
+
+        if (!$rootInfo) {
+            $rootInfo = \OC\Files\Filesystem::getFileInfo($path, $includeExtStorage ? 'ext' : false);
+        }
+        if (!$rootInfo instanceof \OCP\Files\FileInfo) {
+            throw new \OCP\Files\NotFoundException();
+        }
+        $used = $rootInfo->getSize();
+        if ($used < 0) {
+            $used = 0;
+        }
+        $quota = \OCP\Files\FileInfo::SPACE_UNLIMITED;
+        $storage = $rootInfo->getStorage();
+        $sourceStorage = $storage;
+        if ($storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage')) {
+            $includeExtStorage = false;
+            $sourceStorage = $storage->getSourceStorage();
+        }
+        if ($includeExtStorage) {
+            if ($storage->instanceOfStorage('\OC\Files\Storage\Home')
+                || $storage->instanceOfStorage('\OC\Files\ObjectStore\HomeObjectStoreStorage')
+            ) {
+                /** @var \OC\Files\Storage\Home $storage */
+                $userInstance = $storage->getUser();
+                $user = ($userInstance === null) ? null : $userInstance->getUID();
+            } else {
+                $user = \OC::$server->getUserSession()->getUser()->getUID();
+            }
+            if ($user) {
+                $quota = OC_Util::getUserQuota($user);
+            } else {
+                $quota = \OCP\Files\FileInfo::SPACE_UNLIMITED;
+            }
+            if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) {
+                // always get free space / total space from root + mount points
+                return self::getGlobalStorageInfo();
+            }
+        }
+
+        // TODO: need a better way to get total space from storage
+        if ($sourceStorage->instanceOfStorage('\OC\Files\Storage\Wrapper\Quota')) {
+            /** @var \OC\Files\Storage\Wrapper\Quota $storage */
+            $quota = $sourceStorage->getQuota();
+        }
+        $free = $sourceStorage->free_space($rootInfo->getInternalPath());
+        if ($free >= 0) {
+            $total = $free + $used;
+        } else {
+            $total = $free; //either unknown or unlimited
+        }
+        if ($total > 0) {
+            if ($quota > 0 && $total > $quota) {
+                $total = $quota;
+            }
+            // prevent division by zero or error codes (negative values)
+            $relative = round(($used / $total) * 10000) / 100;
+        } else {
+            $relative = 0;
+        }
+
+        $ownerId = $storage->getOwner($path);
+        $ownerDisplayName = '';
+        $owner = \OC::$server->getUserManager()->get($ownerId);
+        if($owner) {
+            $ownerDisplayName = $owner->getDisplayName();
+        }
+
+        return [
+            'free' => $free,
+            'used' => $used,
+            'quota' => $quota,
+            'total' => $total,
+            'relative' => $relative,
+            'owner' => $ownerId,
+            'ownerDisplayName' => $ownerDisplayName,
+        ];
+    }
+
+    /**
+     * Get storage info including all mount points and quota
+     *
+     * @return array
+     */
+    private static function getGlobalStorageInfo() {
+        $quota = OC_Util::getUserQuota(\OCP\User::getUser());
+
+        $rootInfo = \OC\Files\Filesystem::getFileInfo('', 'ext');
+        $used = $rootInfo['size'];
+        if ($used < 0) {
+            $used = 0;
+        }
+
+        $total = $quota;
+        $free = $quota - $used;
+
+        if ($total > 0) {
+            if ($quota > 0 && $total > $quota) {
+                $total = $quota;
+            }
+            // prevent division by zero or error codes (negative values)
+            $relative = round(($used / $total) * 10000) / 100;
+        } else {
+            $relative = 0;
+        }
+
+        return array('free' => $free, 'used' => $used, 'total' => $total, 'relative' => $relative);
+
+    }
+
+    /**
+     * Returns whether the config file is set manually to read-only
+     * @return bool
+     */
+    public static function isReadOnlyConfigEnabled() {
+        return \OC::$server->getConfig()->getSystemValue('config_is_read_only', false);
+    }
 }