<?php
/**
 * @category   Images
 * @package    Image_Graph
 */

/**
 * Pandora FMS - http://pandorafms.com
 * ==================================================
 * Copyright (c) 2005-2009 Artica Soluciones Tecnologicas
 * Please see http://pandorafms.org for full contribution list
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation for version 2.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

//INI Lines of code for direct url call script
if (isset($_GET['getFile'])) {
	$file = $_GET['file'];
	
	if (isset($_GET['thumb'])) {
		if (!isset($_GET['thumb_size'])) {
			$newWidth = $newHeight = '50%';
		}
		else {
			$new_size_values = explode('x',$_GET['thumb_size']);
			$newWidth = (integer) $new_size_values[0];
			$newHeight = (integer) $new_size_values[1];
		}
		$temp = explode("/", $file);
		$fileName = end($temp);
		
		$fileTemp = sys_get_temp_dir() . "/tumb_" . $newWidth . "x" . $newHeight . "_" . $fileName;
		
		if (is_file($fileTemp)) {
			if (!is_readable($fileTemp)) {
				$fileTemp = sys_get_temp_dir() . "/tumb_" . $newWidth . "x" . $newHeight . "_" . uniqid() . "_" . $fileName;
				createthumb( $_SERVER['DOCUMENT_ROOT'] . $file, $fileTemp,$newWidth,$newHeight);
			}
		}
		else createthumb( $_SERVER['DOCUMENT_ROOT'] . $file, $fileTemp,$newWidth,$newHeight);
		getFile($fileName, $fileTemp);
		unlink($fileTemp);
	}
}
//END Lines of code for direct url call script

/**
 * Get a file change http header and write as binary output for
 * redirect to file content.
 * 
 * @param string destFileName Name for rename file when the browser get the file.
 * @param string fileLocation The real location the file in server.
 */
function getFile ($destFileName,$fileLocation) {
	error_reporting(0);


	// NOTICE: mime_conent_type() IS NOT SUPPORTED IN PHP >= 5.2.11 anymore
	// THIS DOESNT WORK ON SUSE 11.x !


//	header('Content-type: aplication/octet-stream;');
//	header('Content-type: ' . mime_content_type($fileLocation) . ';');
//	header( "Content-Length: " . filesize($fileLocation));
//	header('Content-Disposition: attachment; filename="' . $destFileName . '"');

	// Do not send any header, rely on browser
	readfile($fileLocation);
}

/**
 * Create a thumb of image file in filesystem of server.
 * @param string origFileName Original image
 * @param string destFileName Thumb image
 * @param integer newWidth Thumb width
 * @param integer newHeight Thumb height
 */
function createthumb ($origFileName, $destFileName, $newWidth, $newHeight) {
	//TODO $newWidth and $newHeight values as percent.
	
	preg_match("/\.(jpg|jpeg|png)$/", $origFileName, $match);
	$extension = '';
	if (!empty($match))
		$extension = $match[1];
	
	if (preg_match ("/jpg|jpeg/", $extension))
		$src_img = imagecreatefromjpeg($origFileName);
	
	if (preg_match ("/png/", $extension))
		$src_img = imagecreatefrompng($origFileName);
	
	$oldWidth = imageSX($src_img);
	$oldHeight = imageSY($src_img); 
	
	$dst_img = ImageCreateTrueColor($newWidth, $newHeight);
	imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $newWidth, $newHeight, $oldWidth, $oldHeight); 
	if (preg_match("/png/", $extension))
		imagepng($dst_img,$destFileName); 
	else
		imagejpeg($dst_img,$destFileName);
		
	imagedestroy($dst_img); 
	imagedestroy($src_img); 
}
?>