Uprava php súboru kvôli pretazeniu servera...

<?php

// exit;

/*

    TimThumb script created by Tim McDaniels and Darren Hoyt with tweaks by Ben Gillbanks

    http://code.google.com/p/timthumb/



    MIT License: http://www.opensource.org/licenses/mit-license.php



    Paramters

    ---------

    w: width

    h: height

    zc: zoom crop (0 or 1)

    q: quality (default is 75 and max is 100)

    

    HTML example: <img src="/scripts/timthumb.php?src=/images/whatever.jpg&w=150&h=200&zc=1" alt="" />

*/



/*

$sizeLimits = array(

    "100x100",

    "150x150",

);



error_reporting(E_ALL);

ini_set("display_errors", 1); 

*/



// check to see if GD function exist

if(!function_exists('imagecreatetruecolor')) {

    displayError('GD Library Error: imagecreatetruecolor does not exist - please contact your webhost and ask them to install the GD library');

}



define ('CACHE_SIZE', 250);        // number of files to store before clearing cache

define ('CACHE_CLEAR', 5);        // maximum number of files to delete on each cache clear

define ('VERSION', '1.12');        // version number (to force a cache refresh



if (function_exists('imagefilter') && defined('IMG_FILTER_NEGATE')) {

	$imageFilters = array(

		"1" => array(IMG_FILTER_NEGATE, 0),

		"2" => array(IMG_FILTER_GRAYSCALE, 0),

		"3" => array(IMG_FILTER_BRIGHTNESS, 1),

		"4" => array(IMG_FILTER_CONTRAST, 1),

		"5" => array(IMG_FILTER_COLORIZE, 4),

		"6" => array(IMG_FILTER_EDGEDETECT, 0),

		"7" => array(IMG_FILTER_EMBOSS, 0),

		"8" => array(IMG_FILTER_GAUSSIAN_BLUR, 0),

		"9" => array(IMG_FILTER_SELECTIVE_BLUR, 0),

		"10" => array(IMG_FILTER_MEAN_REMOVAL, 0),

		"11" => array(IMG_FILTER_SMOOTH, 0),

	);

}



// sort out image source

$src = get_request("src", "");

if($src == '' || strlen($src) <= 3) {

    displayError ('no image specified');

}



// clean params before use

$src = cleanSource($src);

// last modified time (for caching)

$lastModified = filemtime($src);



// get properties

$new_width         = preg_replace("/[^0-9]+/", "", get_request("w", 0));

$new_height     = preg_replace("/[^0-9]+/", "", get_request("h", 0));

$zoom_crop         = preg_replace("/[^0-9]+/", "", get_request("zc", 1));

$quality         = preg_replace("/[^0-9]+/", "", get_request("q", 80));

$filters        = get_request("f", "");



if ($new_width == 0 && $new_height == 0) {

    $new_width = 100;

    $new_height = 100;

}



// set path to cache directory (default is ./cache)

// this can be changed to a different location

$cache_dir = './cache';



// get mime type of src

$mime_type = mime_type($src);



// check to see if this image is in the cache already

check_cache ($cache_dir, $mime_type);



// if not in cache then clear some space and generate a new file

cleanCache();



ini_set('memory_limit', "50M");



// make sure that the src is gif/jpg/png

if(!valid_src_mime_type($mime_type)) {

    displayError("Invalid src mime type: " .$mime_type);

}



if(strlen($src) && file_exists($src)) {



    // open the existing image

    $image = open_image($mime_type, $src);

    if($image === false) {

        displayError('Unable to open image : ' . $src);

    }



    // Get original width and height

    $width = imagesx($image);

    $height = imagesy($image);

    

    // generate new w/h if not provided

    if( $new_width && !$new_height ) {

        

        $new_height = $height * ( $new_width / $width );

        

    } elseif($new_height && !$new_width) {

        

        $new_width = $width * ( $new_height / $height );

        

    } elseif(!$new_width && !$new_height) {

        

        $new_width = $width;

        $new_height = $height;

        

    }

    

    // create a new true color image

    $canvas = imagecreatetruecolor( $new_width, $new_height );

    imagealphablending($canvas, false);

    // Create a new transparent color for image

    $color = imagecolorallocatealpha($canvas, 0, 0, 0, 127);

    // Completely fill the background of the new image with allocated color.

    imagefill($canvas, 0, 0, $color);

    // Restore transparency blending

    imagesavealpha($canvas, true);



    if( $zoom_crop ) {



        $src_x = $src_y = 0;

        $src_w = $width;

        $src_h = $height;



        $cmp_x = $width  / $new_width;

        $cmp_y = $height / $new_height;



        // calculate x or y coordinate and width or height of source



        if ( $cmp_x > $cmp_y ) {



            $src_w = round( ( $width / $cmp_x * $cmp_y ) );

            $src_x = round( ( $width - ( $width / $cmp_x * $cmp_y ) ) / 2 );



        } elseif ( $cmp_y > $cmp_x ) {



            $src_h = round( ( $height / $cmp_y * $cmp_x ) );

            $src_y = round( ( $height - ( $height / $cmp_y * $cmp_x ) ) / 2 );



        }

        

        imagecopyresampled( $canvas, $image, 0, 0, $src_x, $src_y, $new_width, $new_height, $src_w, $src_h );



    } else {



        // copy and resize part of an image with resampling

        imagecopyresampled( $canvas, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height );



    }

    

    if ($filters != '' && function_exists('imagefilter') && defined('IMG_FILTER_NEGATE')) {

        // apply filters to image

        $filterList = explode("|", $filters);

        foreach($filterList as $fl) {

            $filterSettings = explode(",", $fl);

            if(isset($imageFilters[$filterSettings[0]])) {

            

                for($i = 0; $i < 4; $i ++) {

                    if(!isset($filterSettings[$i])) {

                        $filterSettings[$i] = null;

                    }

                }

                

                switch($imageFilters[$filterSettings[0]][1]) {

                

                    case 1:

                    

                        imagefilter($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1]);

                        break;

                    

                    case 2:

                    

                        imagefilter($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2]);

                        break;

                    

                    case 3:

                    

                        imagefilter($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3]);

                        break;

                    

                    default:

                    

                        imagefilter($canvas, $imageFilters[$filterSettings[0]][0]);

                        break;

                        

                }

            }

        }

    }

    

    // output image to browser based on mime type

    show_image($mime_type, $canvas, $cache_dir);

    

    // remove image from memory

    imagedestroy($canvas);

    

} else {



    if(strlen($src)) {

        displayError("image " . $src . " not found");

    } else {

        displayError("no source specified");

    }

    

}



/**

 * 

 */

function show_image($mime_type, $image_resized, $cache_dir) {



    global $quality;



    // check to see if we can write to the cache directory

    $is_writable = 0;

    $cache_file_name = $cache_dir . '/' . get_cache_file();



    if (touch($cache_file_name)) {

        

        // give 666 permissions so that the developer 

        // can overwrite web server user

        chmod ($cache_file_name, 0666);

        $is_writable = 1;

        

    } else {

        

        $cache_file_name = NULL;

        header ('Content-type: ' . $mime_type);

        

    }



    switch ($mime_type) {

    

        case 'image/jpeg':

            imagejpeg($image_resized, $cache_file_name, $quality);

            break;

        

        default :

            $quality = floor ($quality * 0.09);

            imagepng($image_resized, $cache_file_name, $quality);

            

    }