<?php 
class ThumbsController extends AppController
{
	var $name = 'Thumbs';
	var $uses = null;
	var $layout = null;
	var $autoRender = false;
	
	function index()
		{
			if(empty($_GET['src'])){
				die("No source image");
			}
			
			//width
			$width = (!isset($_GET['w'])) ? 100 : $_GET['w'];
			//height
			$height = (!isset($_GET['h'])) ? 150 : $_GET['h'];
			//quality	
			$quality = (!isset($_GET['q'])) ? 75 : $_GET['q'];
			
			$sourceFilename = WWW_ROOT.$_GET['src'];

			if(is_readable($sourceFilename)){
				vendor("phpthumb".DS."phpthumb.class");
				$phpThumb = new phpThumb();

				$phpThumb->src = $sourceFilename;
				$phpThumb->w = $width;
				$phpThumb->h = $height;
				$phpThumb->q = $quality;
				$phpThumb->config_imagemagick_path = '/usr/bin/convert';
				$phpThumb->config_prefer_imagemagick = true;
				$phpThumb->config_output_format = 'jpg';
				$phpThumb->config_error_die_on_error = true;
				$phpThumb->config_document_root = '';
				$phpThumb->config_temp_directory = APP . 'tmp';
				$phpThumb->config_cache_directory = CACHE.'thumbs'.DS;
				$phpThumb->config_cache_disable_warning = true;
				
				$cacheFilename = md5($_SERVER['REQUEST_URI']);
				
				$phpThumb->cache_filename = $phpThumb->config_cache_directory.$cacheFilename;
				
				//Thanks to Kim Biesbjerg for his fix about cached thumbnails being regeneratd
				if(!is_file($phpThumb->cache_filename)){ // Check if image is already cached.
					if ($phpThumb->GenerateThumbnail()) {
						$phpThumb->RenderToFile($phpThumb->cache_filename);
					} else {
						die('Failed: '.$phpThumb->error);
					}
				}
			
			if(is_file($phpThumb->cache_filename)){ // If thumb was already generated we want to use cached version
				$cachedImage = getimagesize($phpThumb->cache_filename);
				header('Content-Type: '.$cachedImage['mime']);
				readfile($phpThumb->cache_filename);
				exit;
			}
			
			
			} else { // Can't read source
				die("Couldn't read source image ".$sourceFilename);
			}
        }
}
?>