| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace OCA\Files_Antivirus; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Icewind\Streams\CallbackWrapper; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use Icewind\Streams\Wrapper; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | class CallbackReadDataWrapper extends CallbackWrapper { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | 	 * @var callable | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | 	protected $readDataCallback; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | 	 * Wraps a stream with the provided callbacks | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | 	 * @param resource $source | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | 	 * @param callable $readData (optional) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | 	 * @param callable $write (optional) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 	 * @param callable $close (optional) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | 	 * @param callable $readDir (optional) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | 	 * @return resource | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 	 * @throws \BadMethodCallException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 	public static function wrap($source, $readData = null, $write = null, $close = null, $readDir = null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 		$context = stream_context_create(array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 			'callbackReadData' => array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | 				'source' => $source, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 				'readData' => $readData, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 				'write' => $write, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 				'close' => $close, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | 				'readDir' => $readDir | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 			) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 		)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  | 		return Wrapper::wrapSource($source, $context, 'callbackReadData', self::class); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 38 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 39 |  |  | 	protected function open() { | 
            
                                                                        
                            
            
                                    
            
            
                | 40 |  |  | 		$context = $this->loadContext('callbackReadData'); | 
            
                                                                        
                            
            
                                    
            
            
                | 41 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 42 |  |  | 		$this->readDataCallback = $context['readData']; | 
            
                                                                        
                            
            
                                    
            
            
                | 43 |  |  | 		$this->writeCallback = $context['write']; | 
            
                                                                        
                            
            
                                    
            
            
                | 44 |  |  | 		$this->closeCallback = $context['close']; | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  | 		$this->readDirCallBack = $context['readDir']; | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  | 		return true; | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | 	public function stream_read($count) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 		$result = parent::stream_read($count); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  | 		if (is_callable($this->readDataCallback)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 			call_user_func($this->readDataCallback, $count, $result); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 		return $result; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 56 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 57 |  |  |  |