<?php
/*
 * jQuery File Upload Plugin PHP Class
 * https://github.com/blueimp/jQuery-File-Upload
 *
 * Copyright 2010, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 */

class UploadHandler
{

	protected $options;

	// PHP File Upload error message codes:
	// http://php.net/manual/en/features.file-upload.errors.php
	protected $error_messages = array(
		1 => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
		2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
		3 => 'The uploaded file was only partially uploaded',
		4 => 'No file was uploaded',
		6 => 'Missing a temporary folder',
		7 => 'Failed to write file to disk',
		8 => 'A PHP extension stopped the file upload',
		'post_max_size' => 'The uploaded file exceeds the post_max_size directive in php.ini',
		'max_file_size' => 'File is too big',
		'min_file_size' => 'File is too small',
		'accept_file_types' => 'Filetype not allowed',
		'max_number_of_files' => 'Maximum number of files exceeded',
		'max_width' => 'Image exceeds maximum width',
		'min_width' => 'Image requires a minimum width',
		'max_height' => 'Image exceeds maximum height',
		'min_height' => 'Image requires a minimum height',
		'abort' => 'File upload aborted',
		'image_resize' => 'Failed to resize image'
	);

	protected $image_objects = array();

	public function __construct($options = null, $initialize = true, $error_messages = null) {
		$this->response = array();
		$this->options = array(
			'script_url' => $this->get_full_url().'/'.$this->basename($this->get_server_var('SCRIPT_NAME')),
			'upload_dir' => dirname($this->get_server_var('SCRIPT_FILENAME')).'/files/',
			'upload_url' => $this->get_full_url().'/files/',
			'input_stream' => 'php://input',
			'user_dirs' => false,
			'mkdir_mode' => 0777,
			'param_name' => 'files',
			// Set the following option to 'POST', if your server does not support
			// DELETE requests. This is a parameter sent to the client:
			'delete_type' => 'DELETE',
			'access_control_allow_origin' => '*',
			'access_control_allow_credentials' => false,
			'access_control_allow_methods' => array(
				'OPTIONS',
				'HEAD',
				'GET',
				'POST',
				'PUT',
				'PATCH',
				'DELETE'
			),
			'access_control_allow_headers' => array(
				'Content-Type',
				'Content-Range',
				'Content-Disposition'
			),
			// By default, allow redirects to the referer protocol+host:
			'redirect_allow_target' => '/^'.preg_quote(
			  parse_url($this->get_server_var('HTTP_REFERER'), PHP_URL_SCHEME)
				.'://'
				.parse_url($this->get_server_var('HTTP_REFERER'), PHP_URL_HOST)
				.'/', // Trailing slash to not match subdomains by mistake
			  '/' // preg_quote delimiter param
			).'/',
			// Enable to provide file downloads via GET requests to the PHP script:
			//     1. Set to 1 to download files via readfile method through PHP
			//     2. Set to 2 to send a X-Sendfile header for lighttpd/Apache
			//     3. Set to 3 to send a X-Accel-Redirect header for nginx
			// If set to 2 or 3, adjust the upload_url option to the base path of
			// the redirect parameter, e.g. '/files/'.
			'download_via_php' => false,
			// Read files in chunks to avoid memory limits when download_via_php
			// is enabled, set to 0 to disable chunked reading of files:
			'readfile_chunk_size' => 2 * 1024 * 1024, // 10 MiB
			// Defines which files can be displayed inline when downloaded:
			'inline_file_types' => '/\.(gif|jpe?g|png)$/i',
			// Defines which files (based on their names) are accepted for upload:
			'accept_file_types' => '/.+$/i',
			// The php.ini settings upload_max_filesize and post_max_size
			// take precedence over the following max_file_size setting:
			'max_file_size' => null,
			'min_file_size' => 1,
			// The maximum number of files for the upload directory:
			'max_number_of_files' => null,
			// Defines which files are handled as image files:
			'image_file_types' => '/\.(gif|jpe?g|png)$/i',
			// Use exif_imagetype on all files to correct file extensions:
			'correct_image_extensions' => true,
			// Image resolution restrictions:
			'max_width' => null,
			'max_height' => null,
			'min_width' => 1,
			'min_height' => 1,
			// Set the following option to false to enable resumable uploads:
			'discard_aborted_uploads' => true,
			// Set to 0 to use the GD library to scale and orient images,
			// set to 1 to use imagick (if installed, falls back to GD),
			// set to 2 to use the ImageMagick convert binary directly:
			'image_library' => 1,
			// Uncomment the following to define an array of resource limits
			// for imagick:
			/*
			'imagick_resource_limits' => array(
				imagick::RESOURCETYPE_MAP => 32,
				imagick::RESOURCETYPE_MEMORY => 32
			),
			*/
			// Command or path for to the ImageMagick convert binary:
			'convert_bin' => 'convert',
			// Uncomment the following to add parameters in front of each
			// ImageMagick convert call (the limit constraints seem only
			// to have an effect if put in front):
			/*
			'convert_params' => '-limit memory 32MiB -limit map 32MiB',
			*/
			// Command or path for to the ImageMagick identify binary:
			'identify_bin' => 'identify',
			'image_versions' => array(
				// The empty image version key defines options for the original image:
				// Keep in mind that these options are inherited by all other image versions!
				'' => array(
					// Automatically rotate images based on EXIF meta data:
					'auto_orient' => true
				),
				// Uncomment the following to create medium sized images:
				/*
				'medium' => array(
					'max_width' => 800,
					'max_height' => 600
				),
				'thumbnail' => array(
					// Uncomment the following to use a defined directory for the thumbnails
					// instead of a subdirectory based on the version identifier.
					// Make sure that this directory doesn't allow execution of files if you
					// don't pose any restrictions on the type of uploaded files, e.g. by
					// copying the .htaccess file from the files directory for Apache:
					//'upload_dir' => dirname($this->get_server_var('SCRIPT_FILENAME')).'/thumb/',
					'upload_url' => $this->get_full_url().'/thumb/',
					// Uncomment the following to force the max
					// dimensions and e.g. create square thumbnails:
					'crop' => true,
					'max_width' => 80,
					'max_height' => 80
				)
				*/
			),
			'print_response' => true
		);
		if ($options) {
			$this->options = $options + $this->options;
		}
		if ($error_messages) {
			$this->error_messages = $error_messages + $this->error_messages;
		}
		if ($initialize) {
			$this->initialize();
		}
	}

	protected function initialize() {
		switch ($this->get_server_var('REQUEST_METHOD')) {
			case 'OPTIONS':
			case 'HEAD':
				$this->head();
				break;
			case 'GET':
				$this->get($this->options['print_response']);
				break;
			case 'PATCH':
			case 'PUT':
			case 'POST':
				$this->post($this->options['print_response']);
				break;
			case 'DELETE':
				$this->delete($this->options['print_response']);
				break;
			default:
				$this->header('HTTP/1.1 405 Method Not Allowed');
		}
	}

	protected function get_full_url() {
		$https = !empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'on') === 0 ||
			!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
				strcasecmp($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') === 0;
		return
			($https ? 'https://' : 'http://').
			(!empty($_SERVER['REMOTE_USER']) ? $_SERVER['REMOTE_USER'].'@' : '').
			(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ($_SERVER['SERVER_NAME'].
			($https && $_SERVER['SERVER_PORT'] === 443 ||
			$_SERVER['SERVER_PORT'] === 80 ? '' : ':'.$_SERVER['SERVER_PORT']))).
			substr($_SERVER['SCRIPT_NAME'],0, strrpos($_SERVER['SCRIPT_NAME'], '/'));
	}

	protected function get_user_id() {
		@session_start();
		return session_id();
	}

	protected function get_user_path() {
		if ($this->options['user_dirs']) {
			return $this->get_user_id().'/';
		}
		return '';
	}

	protected function get_upload_path($file_name = null, $version = null) {
		$file_name = $file_name ? $file_name : '';
		if (empty($version)) {
			$version_path = '';
		} else {
			$version_dir = @$this->options['image_versions'][$version]['upload_dir'];
			if ($version_dir) {
				return $version_dir.$this->get_user_path().$file_name;
			}
			$version_path = $version.'/';
		}
		return $this->options['upload_dir'].$this->get_user_path()
			.$version_path.$file_name;
	}

	protected function get_query_separator($url) {
		return strpos($url, '?') === false ? '?' : '&';
	}

	protected function get_download_url($file_name, $version = null, $direct = false) {
		if (!$direct && $this->options['download_via_php']) {
			$url = $this->options['script_url']
				.$this->get_query_separator($this->options['script_url'])
				.$this->get_singular_param_name()
				.'='.rawurlencode($file_name);
			if ($version) {
				$url .= '&version='.rawurlencode($version);
			}
			return $url.'&download=1';
		}
		if (empty($version)) {
			$version_path = '';
		} else {
			$version_url = @$this->options['image_versions'][$version]['upload_url'];
			if ($version_url) {
				return $version_url.$this->get_user_path().rawurlencode($file_name);
			}
			$version_path = rawurlencode($version).'/';
		}
		return $this->options['upload_url'].$this->get_user_path()
			.$version_path.rawurlencode($file_name);
	}

	protected function set_additional_file_properties($file) {
		$file->deleteUrl = $this->options['script_url']
			.$this->get_query_separator($this->options['script_url'])
			.$this->get_singular_param_name()
			.'='.rawurlencode($file->name);
		$file->deleteType = $this->options['delete_type'];
		if ($file->deleteType !== 'DELETE') {
			$file->deleteUrl .= '&_method=DELETE';
		}
		if ($this->options['access_control_allow_credentials']) {
			$file->deleteWithCredentials = true;
		}
	}

	// Fix for overflowing signed 32 bit integers,
	// works for sizes up to 2^32-1 bytes (4 GiB - 1):
	protected function fix_integer_overflow($size) {
		if ($size < 0) {
			$size += 2.0 * (PHP_INT_MAX + 1);
		}
		return $size;
	}

	protected function get_file_size($file_path, $clear_stat_cache = false) {
		if ($clear_stat_cache) {
			if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
				clearstatcache(true, $file_path);
			} else {
				clearstatcache();
			}
		}
		return $this->fix_integer_overflow(filesize($file_path));
	}

	protected function is_valid_file_object($file_name) {
		$file_path = $this->get_upload_path($file_name);
		if (is_file($file_path) && $file_name[0] !== '.') {
			return true;
		}
		return false;
	}

	protected function get_file_object($file_name) {
		if ($this->is_valid_file_object($file_name)) {
			$file = new \stdClass();
			$file->name = $file_name;
			$file->size = $this->get_file_size(
				$this->get_upload_path($file_name)
			);
			$file->url = $this->get_download_url($file->name);
			foreach ($this->options['image_versions'] as $version => $options) {
				if (!empty($version)) {
					if (is_file($this->get_upload_path($file_name, $version))) {
						$file->{$version.'Url'} = $this->get_download_url(
							$file->name,
							$version
						);
					}
				}
			}
			$this->set_additional_file_properties($file);
			return $file;
		}
		return null;
	}

	protected function get_file_objects($iteration_method = 'get_file_object') {
		$upload_dir = $this->get_upload_path();
		if (!is_dir($upload_dir)) {
			return array();
		}
		return array_values(array_filter(array_map(
			array($this, $iteration_method),
			scandir($upload_dir)
		)));
	}

	protected function count_file_objects() {
		return count($this->get_file_objects('is_valid_file_object'));
	}

	protected function get_error_message($error) {
		return isset($this->error_messages[$error]) ?
			$this->error_messages[$error] : $error;
	}

	public function get_config_bytes($val) {
		$val = trim($val);
		$last = strtolower($val[strlen($val)-1]);
		$val = (int)$val;
		switch ($last) {
			case 'g':
				$val *= 1024;
			case 'm':
				$val *= 1024;
			case 'k':
				$val *= 1024;
		}
		return $this->fix_integer_overflow($val);
	}

	protected function validate($uploaded_file, $file, $error, $index) {
		if ($error) {
			$file->error = $this->get_error_message($error);
			return false;
		}
		$content_length = $this->fix_integer_overflow(
			(int)$this->get_server_var('CONTENT_LENGTH')
		);
		$post_max_size = $this->get_config_bytes(ini_get('post_max_size'));
		if ($post_max_size && ($content_length > $post_max_size)) {
			$file->error = $this->get_error_message('post_max_size');
			return false;
		}
		if (!preg_match($this->options['accept_file_types'], $file->name)) {
			$file->error = $this->get_error_message('accept_file_types');
			return false;
		}
		if (preg_match($this->options['image_file_types'], $file->name) && function_exists('exif_imagetype') && !@exif_imagetype($uploaded_file)) {
			$file->error = $this->get_error_message('accept_file_types');
			return false;
		}
		if ($uploaded_file && is_uploaded_file($uploaded_file)) {
			$file_size = $this->get_file_size($uploaded_file);
		} else {
			$file_size = $content_length;
		}
		if ($this->options['max_file_size'] && (
				$file_size > $this->options['max_file_size'] ||
				$file->size > $this->options['max_file_size'])
			) {
			$file->error = $this->get_error_message('max_file_size');
			return false;
		}
		if ($this->options['min_file_size'] &&
			$file_size < $this->options['min_file_size']) {
			$file->error = $this->get_error_message('min_file_size');
			return false;
		}
		if (is_int($this->options['max_number_of_files']) &&
				($this->count_file_objects() >= $this->options['max_number_of_files']) &&
				// Ignore additional chunks of existing files:
				!is_file($this->get_upload_path($file->name))) {
			$file->error = $this->get_error_message('max_number_of_files');
			return false;
		}
		$max_width = @$this->options['max_width'];
		$max_height = @$this->options['max_height'];
		$min_width = @$this->options['min_width'];
		$min_height = @$this->options['min_height'];
		if (($max_width || $max_height || $min_width || $min_height)
		   && preg_match($this->options['image_file_types'], $file->name)) {
			list($img_width, $img_height) = $this->get_image_size($uploaded_file);

			// If we are auto rotating the image by default, do the checks on
			// the correct orientation
			if (
				@$this->options['image_versions']['']['auto_orient'] &&
				function_exists('exif_read_data') &&
				($exif = @exif_read_data($uploaded_file)) &&
				(((int) @$exif['Orientation']) >= 5)
			) {
				$tmp = $img_width;
				$img_width = $img_height;
				$img_height = $tmp;
				unset($tmp);
			}

		}
		if (!empty($img_width)) {
			if ($max_width && $img_width > $max_width) {
				$file->error = $this->get_error_message('max_width');
				return false;
			}
			if ($max_height && $img_height > $max_height) {
				$file->error = $this->get_error_message('max_height');
				return false;
			}
			if ($min_width && $img_width < $min_width) {
				$file->error = $this->get_error_message('min_width');
				return false;
			}
			if ($min_height && $img_height < $min_height) {
				$file->error = $this->get_error_message('min_height');
				return false;
			}
		}
		return true;
	}

	protected function upcount_name_callback($matches) {
		$index = isset($matches[1]) ? ((int)$matches[1]) + 1 : 1;
		$ext = isset($matches[2]) ? $matches[2] : '';
		return ' ('.$index.')'.$ext;
	}

	protected function upcount_name($name) {
		return preg_replace_callback(
			'/(?:(?: \(([\d]+)\))?(\.[^.]+))?$/',
			array($this, 'upcount_name_callback'),
			$name,
			1
		);
	}

	protected function get_unique_filename($file_path, $name, $size, $type, $error,
			$index, $content_range) {
		while(is_dir($this->get_upload_path($name))) {
			$name = $this->upcount_name($name);
		}
		// Keep an existing filename if this is part of a chunked upload:
		$uploaded_bytes = $this->fix_integer_overflow((int)$content_range[1]);
		while (is_file($this->get_upload_path($name))) {
			if ($uploaded_bytes === $this->get_file_size(
					$this->get_upload_path($name))) {
				break;
			}
			$name = $this->upcount_name($name);
		}
		return $name;
	}

	protected function fix_file_extension($file_path, $name, $size, $type, $error,
			$index, $content_range) {
		// Add missing file extension for known image types:
		if (strpos($name, '.') === false &&
				preg_match('/^image\/(gif|jpe?g|png)/', $type, $matches)) {
			$name .= '.'.$matches[1];
		}
		if ($this->options['correct_image_extensions'] &&
				function_exists('exif_imagetype')) {
			switch (@exif_imagetype($file_path)){
				case IMAGETYPE_JPEG:
					$extensions = array('jpg', 'jpeg');
					break;
				case IMAGETYPE_PNG:
					$extensions = array('png');
					break;
				case IMAGETYPE_GIF:
					$extensions = array('gif');
					break;
			}
			// Adjust incorrect image file extensions:
			if (!empty($extensions)) {
				$parts = explode('.', $name);
				$extIndex = count($parts) - 1;
				$ext = strtolower(@$parts[$extIndex]);
				if (!in_array($ext, $extensions)) {
					$parts[$extIndex] = $extensions[0];
					$name = implode('.', $parts);
				}
			}
		}
		return $name;
	}

	protected function trim_file_name($file_path, $name, $size, $type, $error,
			$index, $content_range) {
		// Remove path information and dots around the filename, to prevent uploading
		// into different directories or replacing hidden system files.
		// Also remove control characters and spaces (\x00..\x20) around the filename:
		$name = trim($this->basename(stripslashes($name)), "\x00..\x20");
		// Use a timestamp for empty filenames:
		if (!$name) {
			$name = str_replace('.', '-', microtime(true));
		}
		return $name;
	}

	protected function get_file_name($file_path, $name, $size, $type, $error,
			$index, $content_range) {
		$name = $this->trim_file_name($file_path, $name, $size, $type, $error,
			$index, $content_range);
		return $this->get_unique_filename(
			$file_path,
			$this->fix_file_extension($file_path, $name, $size, $type, $error,
				$index, $content_range),
			$size,
			$type,
			$error,
			$index,
			$content_range
		);
	}

	protected function get_scaled_image_file_paths($file_name, $version) {
		$file_path = $this->get_upload_path($file_name);
		if (!empty($version)) {
			$version_dir = $this->get_upload_path(null, $version);
			if (!is_dir($version_dir)) {
				mkdir($version_dir, $this->options['mkdir_mode'], true);
			}
			$new_file_path = $version_dir.'/'.$file_name;
		} else {
			$new_file_path = $file_path;
		}
		return array($file_path, $new_file_path);
	}

	protected function gd_get_image_object($file_path, $func, $no_cache = false) {
		if (empty($this->image_objects[$file_path]) || $no_cache) {
			$this->gd_destroy_image_object($file_path);
			$this->image_objects[$file_path] = $func($file_path);
		}
		return $this->image_objects[$file_path];
	}

	protected function gd_set_image_object($file_path, $image) {
		$this->gd_destroy_image_object($file_path);
		$this->image_objects[$file_path] = $image;
	}

	protected function gd_destroy_image_object($file_path) {
		$image = (isset($this->image_objects[$file_path])) ? $this->image_objects[$file_path] : null ;
		return $image && imagedestroy($image);
	}

	protected function gd_imageflip($image, $mode) {
		if (function_exists('imageflip')) {
			return imageflip($image, $mode);
		}
		$new_width = $src_width = imagesx($image);
		$new_height = $src_height = imagesy($image);
		$new_img = imagecreatetruecolor($new_width, $new_height);
		$src_x = 0;
		$src_y = 0;
		switch ($mode) {
			case '1': // flip on the horizontal axis
				$src_y = $new_height - 1;
				$src_height = -$new_height;
				break;
			case '2': // flip on the vertical axis
				$src_x  = $new_width - 1;
				$src_width = -$new_width;
				break;
			case '3': // flip on both axes
				$src_y = $new_height - 1;
				$src_height = -$new_height;
				$src_x  = $new_width - 1;
				$src_width = -$new_width;
				break;
			default:
				return $image;
		}
		imagecopyresampled(
			$new_img,
			$image,
			0,
			0,
			$src_x,
			$src_y,
			$new_width,
			$new_height,
			$src_width,
			$src_height
		);
		return $new_img;
	}

	protected function gd_orient_image($file_path, $src_img) {
		if (!function_exists('exif_read_data')) {
			return false;
		}
		$exif = @exif_read_data($file_path);
		if ($exif === false) {
			return false;
		}
		$orientation = (int)@$exif['Orientation'];
		if ($orientation < 2 || $orientation > 8) {
			return false;
		}
		switch ($orientation) {
			case 2:
				$new_img = $this->gd_imageflip(
					$src_img,
					defined('IMG_FLIP_VERTICAL') ? IMG_FLIP_VERTICAL : 2
				);
				break;
			case 3:
				$new_img = imagerotate($src_img, 180, 0);
				break;
			case 4:
				$new_img = $this->gd_imageflip(
					$src_img,
					defined('IMG_FLIP_HORIZONTAL') ? IMG_FLIP_HORIZONTAL : 1
				);
				break;
			case 5:
				$tmp_img = $this->gd_imageflip(
					$src_img,
					defined('IMG_FLIP_HORIZONTAL') ? IMG_FLIP_HORIZONTAL : 1
				);
				$new_img = imagerotate($tmp_img, 270, 0);
				imagedestroy($tmp_img);
				break;
			case 6:
				$new_img = imagerotate($src_img, 270, 0);
				break;
			case 7:
				$tmp_img = $this->gd_imageflip(
					$src_img,
					defined('IMG_FLIP_VERTICAL') ? IMG_FLIP_VERTICAL : 2
				);
				$new_img = imagerotate($tmp_img, 270, 0);
				imagedestroy($tmp_img);
				break;
			case 8:
				$new_img = imagerotate($src_img, 90, 0);
				break;
			default:
				return false;
		}
		$this->gd_set_image_object($file_path, $new_img);
		return true;
	}

	protected function gd_create_scaled_image($file_name, $version, $options) {
		if (!function_exists('imagecreatetruecolor')) {
			error_log('Function not found: imagecreatetruecolor');
			return false;
		}
		list($file_path, $new_file_path) =
			$this->get_scaled_image_file_paths($file_name, $version);
		$type = strtolower(substr(strrchr($file_name, '.'), 1));
		switch ($type) {
			case 'jpg':
			case 'jpeg':
				$src_func = 'imagecreatefromjpeg';
				$write_func = 'imagejpeg';
				$image_quality = isset($options['jpeg_quality']) ?
					$options['jpeg_quality'] : 75;
				break;
			case 'gif':
				$src_func = 'imagecreatefromgif';
				$write_func = 'imagegif';
				$image_quality = null;
				break;
			case 'png':
				$src_func = 'imagecreatefrompng';
				$write_func = 'imagepng';
				$image_quality = isset($options['png_quality']) ?
					$options['png_quality'] : 9;
				break;
			default:
				return false;
		}
		$src_img = $this->gd_get_image_object(
			$file_path,
			$src_func,
			!empty($options['no_cache'])
		);
		$image_oriented = false;
		if (!empty($options['auto_orient']) && $this->gd_orient_image(
				$file_path,
				$src_img
			)) {
			$image_oriented = true;
			$src_img = $this->gd_get_image_object(
				$file_path,
				$src_func
			);
		}
		$max_width = $img_width = imagesx($src_img);
		$max_height = $img_height = imagesy($src_img);
		if (!empty($options['max_width'])) {
			$max_width = $options['max_width'];
		}
		if (!empty($options['max_height'])) {
			$max_height = $options['max_height'];
		}
		$scale = min(
			$max_width / $img_width,
			$max_height / $img_height
		);
		if ($scale >= 1) {
			if ($image_oriented) {
				return $write_func($src_img, $new_file_path, $image_quality);
			}
			if ($file_path !== $new_file_path) {
				return copy($file_path, $new_file_path);
			}
			return true;
		}
		if (empty($options['crop'])) {
			$new_width = $img_width * $scale;
			$new_height = $img_height * $scale;
			$dst_x = 0;
			$dst_y = 0;
			$new_img = imagecreatetruecolor($new_width, $new_height);
		} else {
			if (($img_width / $img_height) >= ($max_width / $max_height)) {
				$new_width = $img_width / ($img_height / $max_height);
				$new_height = $max_height;
			} else {
				$new_width = $max_width;
				$new_height = $img_height / ($img_width / $max_width);
			}
			$dst_x = 0 - ($new_width - $max_width) / 2;
			$dst_y = 0 - ($new_height - $max_height) / 2;
			$new_img = imagecreatetruecolor($max_width, $max_height);
		}
		// Handle transparency in GIF and PNG images:
		switch ($type) {
			case 'gif':
			case 'png':
				imagecolortransparent($new_img, imagecolorallocate($new_img, 0, 0, 0));
			case 'png':
				imagealphablending($new_img, false);
				imagesavealpha($new_img, true);
				break;
		}
		$success = imagecopyresampled(
			$new_img,
			$src_img,
			$dst_x,
			$dst_y,
			0,
			0,
			$new_width,
			$new_height,
			$img_width,
			$img_height
		) && $write_func($new_img, $new_file_path, $image_quality);
		$this->gd_set_image_object($file_path, $new_img);
		return $success;
	}

	protected function imagick_get_image_object($file_path, $no_cache = false) {
		if (empty($this->image_objects[$file_path]) || $no_cache) {
			$this->imagick_destroy_image_object($file_path);
			$image = new \Imagick();
			if (!empty($this->options['imagick_resource_limits'])) {
				foreach ($this->options['imagick_resource_limits'] as $type => $limit) {
					$image->setResourceLimit($type, $limit);
				}
			}
			$image->readImage($file_path);
			$this->image_objects[$file_path] = $image;
		}
		return $this->image_objects[$file_path];
	}

	protected function imagick_set_image_object($file_path, $image) {
		$this->imagick_destroy_image_object($file_path);
		$this->image_objects[$file_path] = $image;
	}

	protected function imagick_destroy_image_object($file_path) {
		$image = (isset($this->image_objects[$file_path])) ? $this->image_objects[$file_path] : null ;
		return $image && $image->destroy();
	}

	protected function imagick_orient_image($image) {
		$orientation = $image->getImageOrientation();
		$background = new \ImagickPixel('none');
		switch ($orientation) {
			case \imagick::ORIENTATION_TOPRIGHT: // 2
				$image->flopImage(); // horizontal flop around y-axis
				break;
			case \imagick::ORIENTATION_BOTTOMRIGHT: // 3
				$image->rotateImage($background, 180);
				break;
			case \imagick::ORIENTATION_BOTTOMLEFT: // 4
				$image->flipImage(); // vertical flip around x-axis
				break;
			case \imagick::ORIENTATION_LEFTTOP: // 5
				$image->flopImage(); // horizontal flop around y-axis
				$image->rotateImage($background, 270);
				break;
			case \imagick::ORIENTATION_RIGHTTOP: // 6
				$image->rotateImage($background, 90);
				break;
			case \imagick::ORIENTATION_RIGHTBOTTOM: // 7
				$image->flipImage(); // vertical flip around x-axis
				$image->rotateImage($background, 270);
				break;
			case \imagick::ORIENTATION_LEFTBOTTOM: // 8
				$image->rotateImage($background, 270);
				break;
			default:
				return false;
		}
		$image->setImageOrientation(\imagick::ORIENTATION_TOPLEFT); // 1
		return true;
	}

	protected function imagick_create_scaled_image($file_name, $version, $options) {
		list($file_path, $new_file_path) =
			$this->get_scaled_image_file_paths($file_name, $version);
		$image = $this->imagick_get_image_object(
			$file_path,
			!empty($options['crop']) || !empty($options['no_cache'])
		);
		if ($image->getImageFormat() === 'GIF') {
			// Handle animated GIFs:
			$images = $image->coalesceImages();
			foreach ($images as $frame) {
				$image = $frame;
				$this->imagick_set_image_object($file_name, $image);
				break;
			}
		}
		$image_oriented = false;
		if (!empty($options['auto_orient'])) {
			$image_oriented = $this->imagick_orient_image($image);
		}
		$new_width = $max_width = $img_width = $image->getImageWidth();
		$new_height = $max_height = $img_height = $image->getImageHeight();
		if (!empty($options['max_width'])) {
			$new_width = $max_width = $options['max_width'];
		}
		if (!empty($options['max_height'])) {
			$new_height = $max_height = $options['max_height'];
		}
		$image_strip = false;
		if( !empty($options["strip"]) ) {
			$image_strip = $options["strip"];
		} 
		if ( !$image_oriented && ($max_width >= $img_width) && ($max_height >= $img_height) && !$image_strip && empty($options["jpeg_quality"]) ) {        
			if ($file_path !== $new_file_path) {
				return copy($file_path, $new_file_path);
			}
			return true;
		}
		$crop = !empty($options['crop']);
		if ($crop) {
			$x = 0;
			$y = 0;
			if (($img_width / $img_height) >= ($max_width / $max_height)) {
				$new_width = 0; // Enables proportional scaling based on max_height
				$x = ($img_width / ($img_height / $max_height) - $max_width) / 2;
			} else {
				$new_height = 0; // Enables proportional scaling based on max_width
				$y = ($img_height / ($img_width / $max_width) - $max_height) / 2;
			}
		}
		$success = $image->resizeImage(
			$new_width,
			$new_height,
			isset($options['filter']) ? $options['filter'] : \imagick::FILTER_LANCZOS,
			isset($options['blur']) ? $options['blur'] : 1,
			$new_width && $new_height // fit image into constraints if not to be cropped
		);
		if ($success && $crop) {
			$success = $image->cropImage(
				$max_width,
				$max_height,
				$x,
				$y
			);
			if ($success) {
				$success = $image->setImagePage($max_width, $max_height, 0, 0);
			}
		}
		$type = strtolower(substr(strrchr($file_name, '.'), 1));
		switch ($type) {
			case 'jpg':
			case 'jpeg':
				if (!empty($options['jpeg_quality'])) {
					$image->setImageCompression(\imagick::COMPRESSION_JPEG);
					$image->setImageCompressionQuality($options['jpeg_quality']);
				}
				break;
		}
		if ( $image_strip ) {
			$image->stripImage();
		}
		return $success && $image->writeImage($new_file_path);
	}

	protected function imagemagick_create_scaled_image($file_name, $version, $options) {
		list($file_path, $new_file_path) =
			$this->get_scaled_image_file_paths($file_name, $version);
		$resize = @$options['max_width']
			.(empty($options['max_height']) ? '' : 'X'.$options['max_height']);
		if (!$resize && empty($options['auto_orient'])) {
			if ($file_path !== $new_file_path) {
				return copy($file_path, $new_file_path);
			}
			return true;
		}
		$cmd = $this->options['convert_bin'];
		if (!empty($this->options['convert_params'])) {
			$cmd .= ' '.$this->options['convert_params'];
		}
		$cmd .= ' '.escapeshellarg($file_path);
		if (!empty($options['auto_orient'])) {
			$cmd .= ' -auto-orient';
		}
		if ($resize) {
			// Handle animated GIFs:
			$cmd .= ' -coalesce';
			if (empty($options['crop'])) {
				$cmd .= ' -resize '.escapeshellarg($resize.'>');
			} else {
				$cmd .= ' -resize '.escapeshellarg($resize.'^');
				$cmd .= ' -gravity center';
				$cmd .= ' -crop '.escapeshellarg($resize.'+0+0');
			}
			// Make sure the page dimensions are correct (fixes offsets of animated GIFs):
			$cmd .= ' +repage';
		}
		if (!empty($options['convert_params'])) {
			$cmd .= ' '.$options['convert_params'];
		}
		$cmd .= ' '.escapeshellarg($new_file_path);
		exec($cmd, $output, $error);
		if ($error) {
			error_log(implode('\n', $output));
			return false;
		}
		return true;
	}

	protected function get_image_size($file_path) {
		if ($this->options['image_library']) {
			if (extension_loaded('imagick')) {
				$image = new \Imagick();
				try {
					if (@$image->pingImage($file_path)) {
						$dimensions = array($image->getImageWidth(), $image->getImageHeight());
						$image->destroy();
						return $dimensions;
					}
					return false;
				} catch (\Exception $e) {
					error_log($e->getMessage());
				}
			}
			if ($this->options['image_library'] === 2) {
				$cmd = $this->options['identify_bin'];
				$cmd .= ' -ping '.escapeshellarg($file_path);
				exec($cmd, $output, $error);
				if (!$error && !empty($output)) {
					// image.jpg JPEG 1920x1080 1920x1080+0+0 8-bit sRGB 465KB 0.000u 0:00.000
					$infos = preg_split('/\s+/', substr($output[0], strlen($file_path)));
					$dimensions = preg_split('/x/', $infos[2]);
					return $dimensions;
				}
				return false;
			}
		}
		if (!function_exists('getimagesize')) {
			error_log('Function not found: getimagesize');
			return false;
		}
		return @getimagesize($file_path);
	}

	protected function create_scaled_image($file_name, $version, $options) {
		if ($this->options['image_library'] === 2) {
			return $this->imagemagick_create_scaled_image($file_name, $version, $options);
		}
		if ($this->options['image_library'] && extension_loaded('imagick')) {
			return $this->imagick_create_scaled_image($file_name, $version, $options);
		}
		return $this->gd_create_scaled_image($file_name, $version, $options);
	}

	protected function destroy_image_object($file_path) {
		if ($this->options['image_library'] && extension_loaded('imagick')) {
			return $this->imagick_destroy_image_object($file_path);
		}
	}

	protected function is_valid_image_file($file_path) {
		if (!preg_match($this->options['image_file_types'], $file_path)) {
			return false;
		}
		if (function_exists('exif_imagetype')) {
			return @exif_imagetype($file_path);
		}
		$image_info = $this->get_image_size($file_path);
		return $image_info && $image_info[0] && $image_info[1];
	}

	protected function handle_image_file($file_path, $file) {
		$failed_versions = array();
		foreach ($this->options['image_versions'] as $version => $options) {
			if ($this->create_scaled_image($file->name, $version, $options)) {
				if (!empty($version)) {
					$file->{$version.'Url'} = $this->get_download_url(
						$file->name,
						$version
					);
				} else {
					$file->size = $this->get_file_size($file_path, true);
				}
			} else {
				$failed_versions[] = $version ? $version : 'original';
			}
		}
		if (count($failed_versions)) {
			$file->error = $this->get_error_message('image_resize')
					.' ('.implode($failed_versions, ', ').')';
		}
		// Free memory:
		$this->destroy_image_object($file_path);
	}

	protected function handle_file_upload($uploaded_file, $name, $size, $type, $error, $index = null, $content_range = null) {
		$file = new \stdClass();
		$file->name = $this->get_file_name($uploaded_file, $name, $size, $type, $error,
			$index, $content_range);
		$file->size = $this->fix_integer_overflow((int)$size);
		$file->type = $type;
		if ($this->validate($uploaded_file, $file, $error, $index)) {
			$this->handle_form_data($file, $index);
			$upload_dir = $this->get_upload_path();
			if (!$this->options['ftp'] && !is_dir($upload_dir)) {
				mkdir($upload_dir, $this->options['mkdir_mode'], true);
			}
			$file_path = $this->get_upload_path($file->name);
			$append_file = $content_range && is_file($file_path) &&
				$file->size > $this->get_file_size($file_path);
			if ($uploaded_file && is_uploaded_file($uploaded_file)) {
				// multipart/formdata uploads (POST method uploads)
				if ($append_file) {
					file_put_contents(
						$file_path,
						fopen($uploaded_file, 'r'),
						FILE_APPEND
					);
				} else {
					move_uploaded_file($uploaded_file, $file_path);
				}
			} else {
				if($this->get_file_size($uploaded_file) == $file->size){
					copy($uploaded_file, $file_path);
				}else{

					// Non-multipart uploads (PUT method support)
					file_put_contents(
						$file_path,
						fopen($this->options['input_stream'], 'r'),
						$append_file ? FILE_APPEND : 0
					);
				}
			}
			$file_size = $this->get_file_size($file_path, $append_file);
			$file->path = $file_path;
			if ($file_size === $file->size) {
				$file->url = $this->get_download_url($file->name);
				if ($this->is_valid_image_file($file_path)) {
					$this->handle_image_file($file_path, $file);
				}
			} else {
				$file->size = $file_size;
				if (!$content_range && $this->options['discard_aborted_uploads']) {
					unlink($file_path);
					$file->error = $this->get_error_message('abort');
				}
			}
			$this->set_additional_file_properties($file);
		}
		return $file;
	}

	protected function readfile($file_path) {
		$file_size = $this->get_file_size($file_path);
		$chunk_size = $this->options['readfile_chunk_size'];
		if ($chunk_size && $file_size > $chunk_size) {
			$handle = fopen($file_path, 'rb');
			while (!feof($handle)) {
				echo fread($handle, $chunk_size);
				@ob_flush();
				@flush();
			}
			fclose($handle);
			return $file_size;
		}
		return readfile($file_path);
	}

	protected function body($str) {
		echo $str;
	}

	protected function header($str) {
		header($str);
	}

	protected function get_upload_data($id) {
		return @$_FILES[$id];
	}

	protected function get_post_param($id) {
		return @$_POST[$id];
	}

	protected function get_query_param($id) {
		return @$_GET[$id];
	}

	protected function get_server_var($id) {
		return @$_SERVER[$id];
	}

	protected function handle_form_data($file, $index) {
		// Handle form data, e.g. $_POST['description'][$index]
	}

	protected function get_version_param() {
		return $this->basename(stripslashes($this->get_query_param('version')));
	}

	protected function get_singular_param_name() {
		return substr($this->options['param_name'], 0, -1);
	}

	protected function get_file_name_param() {
		$name = $this->get_singular_param_name();
		return $this->basename(stripslashes($this->get_query_param($name)));
	}

	protected function get_file_names_params() {
		$params = $this->get_query_param($this->options['param_name']);
		if (!$params) {
			return null;
		}
		foreach ($params as $key => $value) {
			$params[$key] = $this->basename(stripslashes($value));
		}
		return $params;
	}

	protected function get_file_type($file_path) {
		switch (strtolower(pathinfo($file_path, PATHINFO_EXTENSION))) {
			case 'jpeg':
			case 'jpg':
				return 'image/jpeg';
			case 'png':
				return 'image/png';
			case 'gif':
				return 'image/gif';
			default:
				return '';
		}
	}

	protected function download() {
		switch ($this->options['download_via_php']) {
			case 1:
				$redirect_header = null;
				break;
			case 2:
				$redirect_header = 'X-Sendfile';
				break;
			case 3:
				$redirect_header = 'X-Accel-Redirect';
				break;
			default:
				return $this->header('HTTP/1.1 403 Forbidden');
		}
		$file_name = $this->get_file_name_param();
		if (!$this->is_valid_file_object($file_name)) {
			return $this->header('HTTP/1.1 404 Not Found');
		}
		if ($redirect_header) {
			return $this->header(
				$redirect_header.': '.$this->get_download_url(
					$file_name,
					$this->get_version_param(),
					true
				)
			);
		}
		$file_path = $this->get_upload_path($file_name, $this->get_version_param());
		// Prevent browsers from MIME-sniffing the content-type:
		$this->header('X-Content-Type-Options: nosniff');
		if (!preg_match($this->options['inline_file_types'], $file_name)) {
			$this->header('Content-Type: application/octet-stream');
			$this->header('Content-Disposition: attachment; filename="'.$file_name.'"');
		} else {
			$this->header('Content-Type: '.$this->get_file_type($file_path));
			$this->header('Content-Disposition: inline; filename="'.$file_name.'"');
		}
		$this->header('Content-Length: '.$this->get_file_size($file_path));
		$this->header('Last-Modified: '.gmdate('D, d M Y H:i:s T', filemtime($file_path)));
		$this->readfile($file_path);
	}

	protected function send_content_type_header() {
		$this->header('Vary: Accept');
		if (strpos($this->get_server_var('HTTP_ACCEPT'), 'application/json') !== false) {
			$this->header('Content-type: application/json');
		} else {
			$this->header('Content-type: text/plain');
		}
	}

	protected function send_access_control_headers() {
		$this->header('Access-Control-Allow-Origin: '.$this->options['access_control_allow_origin']);
		$this->header('Access-Control-Allow-Credentials: '
			.($this->options['access_control_allow_credentials'] ? 'true' : 'false'));
		$this->header('Access-Control-Allow-Methods: '
			.implode(', ', $this->options['access_control_allow_methods']));
		$this->header('Access-Control-Allow-Headers: '
			.implode(', ', $this->options['access_control_allow_headers']));
	}

	public function generate_response($content, $print_response = true) {
		$this->response = $content;
		if ($print_response) {
			$json = json_encode($content);
			$redirect = stripslashes($this->get_post_param('redirect'));
			if ($redirect && preg_match($this->options['redirect_allow_target'], $redirect)) {
				$this->header('Location: '.sprintf($redirect, rawurlencode($json)));
				return;
			}
			$this->head();
			if ($this->get_server_var('HTTP_CONTENT_RANGE')) {
				$files = isset($content[$this->options['param_name']]) ?
					$content[$this->options['param_name']] : null;
				if ($files && is_array($files) && is_object($files[0]) && $files[0]->size) {
					$this->header('Range: 0-'.(
						$this->fix_integer_overflow((int)$files[0]->size) - 1
					));
				}
			}
			$this->body($json);
		}
		return $content;
	}

	public function get_response () {
		return $this->response;
	}

	public function head() {
		$this->header('Pragma: no-cache');
		$this->header('Cache-Control: no-store, no-cache, must-revalidate');
		$this->header('Content-Disposition: inline; filename="files.json"');
		// Prevent Internet Explorer from MIME-sniffing the content-type:
		$this->header('X-Content-Type-Options: nosniff');
		if ($this->options['access_control_allow_origin']) {
			$this->send_access_control_headers();
		}
		$this->send_content_type_header();
	}

	public function get($print_response = true) {
		if ($print_response && $this->get_query_param('download')) {
			return $this->download();
		}
		$file_name = $this->get_file_name_param();
		if ($file_name) {
			$response = array(
				$this->get_singular_param_name() => $this->get_file_object($file_name)
			);
		} else {
			$response = array(
				$this->options['param_name'] => $this->get_file_objects()
			);
		}

		return $this->generate_response($response, $print_response);
	}

	public function post($print_response = true) {
		if ($this->get_query_param('_method') === 'DELETE') {
			return $this->delete($print_response);
		}
		$upload = $this->get_upload_data($this->options['param_name']);
		// Parse the Content-Disposition header, if available:
		$content_disposition_header = $this->get_server_var('HTTP_CONTENT_DISPOSITION');
		$file_name = $content_disposition_header ?
			rawurldecode(preg_replace(
				'/(^[^"]+")|("$)/',
				'',
				$content_disposition_header
			)) : null;
		// TODO check
		// if (isset($content_disposition_header) && !empty($content_disposition_header) ) {
		//	 $file_name = str_replace('attachment; filename=&#34;', '', $content_disposition_header);
		//   $file_name = str_replace('&#34;', '', $file_name);
		// }
		// Parse the Content-Range header, which has the following form:
		// Content-Range: bytes 0-524287/2000000
		$content_range_header = $this->get_server_var('HTTP_CONTENT_RANGE');
		$content_range = $content_range_header ?
			preg_split('/[^0-9]+/', $content_range_header) : null;
		$size =  $content_range ? $content_range[3] : null;
		$files = array();
		if ($upload) {
			if (is_array($upload['tmp_name'])) {
				// param_name is an array identifier like "files[]",
				// $upload is a multi-dimensional array:
				foreach ($upload['tmp_name'] as $index => $value) {
					if(!isset($upload['error'][$index])){
						$upload['error'][$index] = null;
					}
					$files[] = $this->handle_file_upload(
						$upload['tmp_name'][$index],
						$file_name ? $file_name : $upload['name'][$index],
						$size ? $size : $upload['size'][$index],
						$upload['type'][$index],
						$upload['error'][$index],
						$index,
						$content_range
					);
				}
			} else {
				// param_name is a single object identifier like "file",
				// $upload is a one-dimensional array:
				$files[] = $this->handle_file_upload(
					isset($upload['tmp_name']) ? $upload['tmp_name'] : null,
					$file_name ? $file_name : (isset($upload['name']) ?
							$upload['name'] : null),
					$size ? $size : (isset($upload['size']) ?
							$upload['size'] : $this->get_server_var('CONTENT_LENGTH')),
					isset($upload['type']) ?
							$upload['type'] : $this->get_server_var('CONTENT_TYPE'),
					isset($upload['error']) ? $upload['error'] : null,
					null,
					$content_range
				);
			}
		}
		$response = array($this->options['param_name'] => $files);
		$name = $file_name ? $file_name : $upload['name'][0];
		$res = $this->generate_response($response, $print_response);
		if(is_file($this->get_upload_path($name))){
			$uploaded_bytes = $this->fix_integer_overflow((int)$content_range[1]);
			$totalSize = $this->get_file_size($this->get_upload_path($name));
			if ($totalSize - $uploaded_bytes - $this->options['readfile_chunk_size'] < 0) {
				$this->onUploadEnd($res);
			}else{
				$this->head();
				$this->body(json_encode($res));
			}
		}else{
			$this->head();
			$this->body(json_encode($res));
		}
		return $res;
	}

	public function onUploadEnd ($res){
		$targetPath = $this->options['storeFolder'];
		$targetPathThumb = $this->options['storeFolderThumb'];

		if(!$this->options['ftp']){
			$targetFile =  $targetPath. $res['files'][0]->name;
			$targetFileThumb =  $targetPathThumb. $res['files'][0]->name;
			if (!is_dir($targetPathThumb)) {
				mkdir($targetPathThumb, $this->options['mkdir_mode'], true);
			}
			if(is_file($targetFile)) {
				chmod($targetFile, $this->options['config']['filePermission']);
			}elseif(is_dir($targetFile)){
				chmod($targetFile, $this->options['config']['folderPermission']);
			}
		}else{
			$targetFile = $this->options['config']['ftp_temp_folder'].$res['files'][0]->name;
			$targetFileThumb =  $this->options['config']['ftp_temp_folder']."thumbs/". $res['files'][0]->name;
		}

		//check if image (and supported)
		$is_img = FALSE;
		if ($this->is_valid_image_file($targetFile)){
			$is_img = TRUE;
		}

		if ($is_img)
		{
			if(isset($this->options['config']['image_watermark']) && $this->options['config']['image_watermark']){
				require_once('include/php_image_magician.php');

				$magicianObj = new imageLib($targetFile);
				$magicianObj -> addWatermark($this->options['config']['image_watermark'], $this->options['config']['image_watermark_position'],  $this->options['config']['image_watermark_padding']);

				$magicianObj -> saveImage($targetFile);
			}

			$thumbResult = create_img($targetFile, $targetFileThumb, 200, 150);

			if ( $thumbResult!==true)
			{
				if($thumbResult === false){
					$res['files'][0]->error = trans("Not enough Memory");
				}else{
					$res['files'][0]->error = $thumbResult;
				}
			}
			else
			{
				if( !$this->options['ftp'] && ! new_thumbnails_creation($targetPath,$targetFile,$_FILES['files']['name'][0],$this->options['config']['current_path'],$this->options['config']))
				{
					$res['files'][0]->error = trans("Not enough Memory");
				}
				else
				{
					$imginfo = getimagesize($targetFile);
					$srcWidth = $imginfo[0];
					$srcHeight = $imginfo[1];

					// resize images if set
					if ($this->options['config']['image_resizing'])
					{
						if ($this->options['config']['image_resizing_width'] == 0) // if width not set
						{
							if ($this->options['config']['image_resizing_height'] == 0)
							{
								$this->options['config']['image_resizing_width'] = $srcWidth;
								$this->options['config']['image_resizing_height'] = $srcHeight;
							}
							else
							{
								$this->options['config']['image_resizing_width'] = $this->options['config']['image_resizing_height']*$srcWidth/$srcHeight;
							}
						}
						elseif ($this->options['config']['image_resizing_height'] == 0) // if height not set
						{
							$this->options['config']['image_resizing_height'] = $this->options['config']['image_resizing_width']*$srcHeight/$srcWidth;
						}

						// new dims and create
						$srcWidth = $this->options['config']['image_resizing_width'];
						$srcHeight = $this->options['config']['image_resizing_height'];
						create_img($targetFile, $targetFile, $this->options['config']['image_resizing_width'], $this->options['config']['image_resizing_height'], $this->options['config']['image_resizing_mode']);
					}

					//max resizing limit control
					$resize = FALSE;
					if ($this->options['config']['image_max_width'] != 0 && $srcWidth > $this->options['config']['image_max_width'] && $this->options['config']['image_resizing_override'] === FALSE)
					{
						$resize = TRUE;
						$srcWidth = $this->options['config']['image_max_width'];

						if ($this->options['config']['image_max_height'] == 0) $srcHeight = $this->options['config']['image_max_width']*$srcHeight/$srcWidth;
					}

					if ($this->options['config']['image_max_height'] != 0 && $srcHeight > $this->options['config']['image_max_height'] && $this->options['config']['image_resizing_override'] === FALSE){
						$resize = TRUE;
						$srcHeight = $this->options['config']['image_max_height'];

						if ($this->options['config']['image_max_width'] == 0) $srcWidth = $this->options['config']['image_max_height']*$srcWidth/$srcHeight;
					}

					if ($resize){ create_img($targetFile, $targetFile, $srcWidth, $srcHeight, $this->options['config']['image_max_mode']); }
				}
			}
		}

		if($this->options['ftp']){

			$this->options['ftp']->put($targetPath. $res['files'][0]->name, $targetFile, FTP_BINARY);
			unlink($targetFile);
			if ($is_img)
			{
				$this->options['ftp']->put($targetPathThumb. $res['files'][0]->name, $targetFileThumb, FTP_BINARY);
				unlink($targetFileThumb);
			}
		}
		$this->head();
		$this->body(json_encode($res));
	}

	public function delete($print_response = true) {
		$file_names = $this->get_file_names_params();
		if (empty($file_names)) {
			$file_names = array($this->get_file_name_param());
		}
		$response = array();
		foreach ($file_names as $file_name) {
			$file_path = $this->get_upload_path($file_name);
			$success = is_file($file_path) && $file_name[0] !== '.' && unlink($file_path);
			if ($success) {
				foreach ($this->options['image_versions'] as $version => $options) {
					if (!empty($version)) {
						$file = $this->get_upload_path($file_name, $version);
						if (is_file($file)) {
							unlink($file);
						}
					}
				}
			}
			$response[$file_name] = $success;
		}
		return $this->generate_response($response, $print_response);
	}

	protected function basename($filepath, $suffix = null) {
		$splited = preg_split('/\//', rtrim ($filepath, '/ '));
		return substr(basename('X'.$splited[count($splited)-1], $suffix), 1);
	}
}