rlm@3: <?php
rlm@3: /**
rlm@3:  * Styx::Upload - Handles file uploads
rlm@3:  *
rlm@3:  * @package Styx
rlm@3:  * @subpackage Utility
rlm@3:  *
rlm@3:  * @license MIT-style License
rlm@3:  * @author Christoph Pojer <christoph.pojer@gmail.com>
rlm@3:  */
rlm@3: 
rlm@3: class Upload {
rlm@3: 	
rlm@3: 	/**
rlm@3: 	 * Moves the uploaded file to the specified location. It throws a UploadException
rlm@3: 	 * if anything goes wrong except for if the upload does not exist. This can be checked with {@link Upload::exists()}
rlm@3: 	 *
rlm@3: 	 * @param string $file
rlm@3: 	 * @param string $to
rlm@3: 	 * @param array $options
rlm@3: 	 * @return bool|string Path to moved file or false if the specified upload does not exist
rlm@3: 	 */
rlm@3: 	public static function move($file, $to, $options = null){
rlm@3: 		if(!self::exists($file)) return false;
rlm@3: 		
rlm@3: 		$options = array_merge(array(
rlm@3: 			'name' => null,
rlm@3: 			'extension' => null,
rlm@3: 			'size' => null,
rlm@3: 			'chmod' => 0777,
rlm@3: 			'overwrite' => false,
rlm@3: 			'mimes' => array(),
rlm@3: 		), $options);
rlm@3: 		
rlm@3: 		$file = $_FILES[$file];
rlm@3: 		
rlm@3: 		if($options['size'] && $file['size']>$options['size'])
rlm@3: 			throw new UploadException('size');
rlm@3: 		
rlm@3: 		$pathinfo = pathinfo($file['name']);
rlm@3: 		if($options['extension']) $pathinfo['extension'] = $options['extension'];
rlm@3: 		if(!$pathinfo['extension'])
rlm@3: 			throw new UploadException('extension');
rlm@3: 		
rlm@3: 		if(count($options['mimes'])){
rlm@3: 			$mime = self::mime($file['tmp_name'], array(
rlm@3: 				'default' => $file['type'],
rlm@3: 				'extension' => $pathinfo['extension'],
rlm@3: 			));
rlm@3: 			
rlm@3: 			if(!$mime || !in_array($mime, $options['mimes']))
rlm@3: 				throw new UploadException('extension');
rlm@3: 		}
rlm@3: 		
rlm@3: 		$file['ext'] = strtolower($pathinfo['extension']);
rlm@3: 		$file['base'] = basename($pathinfo['basename'], '.'.$pathinfo['extension']);
rlm@3: 		
rlm@3: 		$real = realpath($to);
rlm@3: 		if(!$real) throw new UploadException('path');
rlm@3: 		if(is_dir($real)) $to = $real.'/'.($options['name'] ? $options['name'] : $file['base']).'.'.$file['ext'];
rlm@3: 		
rlm@3: 		if(!$options['overwrite'] && file_exists($to))
rlm@3: 			throw new UploadException('exists');
rlm@3: 		
rlm@3: 		if(!move_uploaded_file($file['tmp_name'], $to))
rlm@3: 			throw new UploadException(strtolower($_FILES[$file]['error']<=2 ? 'size' : ($_FILES[$file]['error']==3 ? 'partial' : 'nofile')));
rlm@3: 		
rlm@3: 		chmod($to, $options['chmod']);
rlm@3: 		
rlm@3: 		return realpath($to);
rlm@3: 	}
rlm@3: 	
rlm@3: 	/**
rlm@3: 	 * Returns whether the Upload exists or not
rlm@3: 	 *
rlm@3: 	 * @param string $file
rlm@3: 	 * @return bool
rlm@3: 	 */
rlm@3: 	public function exists($file){
rlm@3: 		return !(empty($_FILES[$file]['name']) || empty($_FILES[$file]['size']));
rlm@3: 	}
rlm@3: 	
rlm@3: 	/**
rlm@3: 	 * Returns (if possible) the mimetype of the given file
rlm@3: 	 *
rlm@3: 	 * @param string $file
rlm@3: 	 * @param array $options
rlm@3: 	 */
rlm@3: 	public function mime($file, $options = array()){
rlm@3: 		$file = realpath($file);
rlm@3: 		$options = array_merge(array(
rlm@3: 			'default' => null,
rlm@3: 			'extension' => strtolower(pathinfo($file, PATHINFO_EXTENSION)),
rlm@3: 		), $options);
rlm@3: 		
rlm@3: 		$mime = null;
rlm@3: 		if(function_exists('finfo_open') && $f = finfo_open(FILEINFO_MIME, getenv('MAGIC'))){
rlm@3: 			$mime = finfo_file($f, $file);
rlm@3: 			finfo_close($f);
rlm@3: 		}
rlm@3: 		
rlm@3: 		if(!$mime && in_array($options['extension'], array('gif', 'jpg', 'jpeg', 'png'))){
rlm@3: 			$image = getimagesize($file);
rlm@3: 			if(!empty($image['mime']))
rlm@3: 				$mime = $image['mime'];
rlm@3: 		}
rlm@3: 		
rlm@3: 		if(!$mime && $options['default']) $mime = $options['default'];
rlm@3: 		
rlm@3: 		if((!$mime || $mime=='application/octet-stream') && $options['extension']){
rlm@3: 			static $mimes;
rlm@3: 			if(!$mimes) $mimes = parse_ini_file(pathinfo(__FILE__, PATHINFO_DIRNAME).'/MimeTypes.ini');
rlm@3: 			
rlm@3: 			if(!empty($mimes[$options['extension']])) return $mimes[$options['extension']];
rlm@3: 		}
rlm@3: 		
rlm@3: 		return $mime;
rlm@3: 	}
rlm@3: 	
rlm@3: }
rlm@3: 
rlm@3: class UploadException extends Exception {}