Uploader class

<?php

/**
 * @package uploader
 *
 * @author Niels Kieviet <[email protected]>
 * @version $Revision v1.00$
 * @copyright Copyright (c) 2010, Niels Kieviet
 */

class uploader
{
	/**
	 * @var Array
	 */
	protected $extensions;
	/**
	 * @var Array
	 */
	protected $types;
	/**
	 * @var Integer
	 */
	protected $size;
	/**
	 * @var Array
	 */
	protected $errors;
	/**
	 * @var String
	 */
	protected $hash;
	
	/**
	 * Contructor
	 * 
	 * @param Array $extensions 
	 * @param Array $types 
	 * @param Integer $size 
	 */
	public function __construct( Array $extensions = array(), Array $types = array(), $size = 5000000 )
	{
		$this->errors = array();
		$this->extensions = $extensions;
		$this->types = $types;
		$this->size = $size;
	}

	/**
	 * Upload the file
	 * 
	 * @param String $file
	 * @param String $path
	 */
	public function upload( $file, $path )
	{
		if( $this->checkFile( $file ) ) {
			if( $this->isAllowed( $file ) && $this->pathExists( $path ) ) {
				// Extension of file
				$ext = strtolower( strrchr( $file['name'], '.' ) );
				// Make a final hash
				$hash = new hash();
				$hash->createHash();
				$this->hash = $hash->getHash();
				// Upload the file to the final folder
				if( !move_uploaded_file( $file['tmp_name'], $path.$this->hash.$ext ) ) {
					$this->errors[] = 'Verplaats fout';
				}
			}
		}
		//var_dump ( $this->checkSize( $file ) );
	}
	
	/**
	 * Check if file is allow
	 * 
	 * @param String $file
	 * @return Boolean
	 */
	protected function isAllowed( $file )
	{
		$allowed = true;
		foreach( array( 'mime', 'extension', 'size' ) as $check ) {
			$method = sprintf( 'check%s', ucfirst( $check ) );
			$allowed = ( $this->$method( $file ) ) && $allowed;
		}
		return $allowed;
	}
	
	/**
	 * CheckFile
	 * 
	 * @param String $file
	 * @return Boolean
	 */
	public function checkFile( $file )
	{
		if( empty( $file['tmp_name'] ) ) {
			$this->errors[] = 'Select bestand';
			return false;
		}
		return true;
	}
	
	/**
	 * Check MimeType
	 * 
	 * @param String $file
	 * @return Boolean
	 */
	protected function checkMime( $file )
	{
		if( count( $this->types ) > 0 ) {
			if( !in_array( $file['type'], $this->types ) ) {
				$this->errors[] = 'MIME type fout';
				return false;
			}
			return true;
		}
		return true;
	}
	
	/**
	 * Check extension
	 * 
	 * @param String $file
	 * @return Boolean
	 */
	protected function checkExtension( $file )
	{
		if( count ( $this->extensions ) > 0 ) {
			// Check extension
			$ext = strtolower( strrchr( $file['name'], '.' ) );
				// Control if extension is allowed
				if( !in_array( $ext, $this->extensions ) ) {
					$this->errors[] = 'Extensie fout';
					return false;
				}
			return true;
		}
		return true;
	}
	
	/**
	 * Check size
	 * 
	 * @param String $file
	 * @return Boolean
	 */
	protected function checkSize( $file )
	{
		if( ctype_digit( $this->size ) ) {
			// Controle file size
			if( $file['size'] > $this->size ) {
				$this->errors[] = 'Grote bestand';
				return false;
			}
		}
		return true;
	}
	
	/**
	 * Check path
	 * 
	 * @param String $path
	 * @return Boolean
	 */
	protected function pathExists( $path )
	{
		if( !empty( $path ) ) {
			if( !is_dir( $path ) ) {
				$this->errors[] = 'Upload map';
				return false;
			}
		}
		return true;
	}
	
	/**
	 * Give the hash
	 *
	 * @return String
	 */
	public function hash( ) 
	{
		return $this->hash;
	}
	
	/**
	 * Give all errors
	 * 
	 * @return Array
	 */
	public function errors( $css )
	{
		if( sizeof( $this->errors ) > 0 ) {
			$html = '<ul class="' .$css. '">';
				// Foreach array to string
				foreach( $this->errors as $error ) {
					$html .= '<li> ' .$error. ' </li>';
				}
			$html .= '</ul>';
			return $html;
		}
	}
}
?>