25/09/2011, 17:16
|
 | | | Fecha de Ingreso: enero-2010
Mensajes: 149
Antigüedad: 14 años, 10 meses Puntos: 0 | |
| Respuesta: Slide Theme Obscure 2.0
Código:
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, $quality);
}
if ($is_writable) {
show_cache_file ($cache_dir, $mime_type);
}
imagedestroy ($image_resized);
displayError ("error showing image");
}
/**
*
*/
function get_request( $property, $default = 0 ) {
if( isset($_REQUEST[$property]) ) {
return $_REQUEST[$property];
} else {
return $default;
}
}
/**
*
*/
function open_image($mime_type, $src) {
$mime_type = strtolower($mime_type);
if (stristr ($mime_type, 'gif')) {
$image = imagecreatefromgif($src);
} elseif (stristr($mime_type, 'jpeg')) {
@ini_set ('gd.jpeg_ignore_warning', 1);
$image = imagecreatefromjpeg($src);
} elseif (stristr ($mime_type, 'png')) {
$image = imagecreatefrompng($src);
}
return $image;
}
/**
* clean out old files from the cache
* you can change the number of files to store and to delete per loop in the defines at the top of the code
*/
function cleanCache() {
$files = glob("cache/*", GLOB_BRACE);
if (count($files) > 0) {
$yesterday = time() - (24 * 60 * 60);
usort($files, 'filemtime_compare');
$i = 0;
if (count($files) > CACHE_SIZE) {
foreach ($files as $file) {
$i ++;
if ($i >= CACHE_CLEAR) {
return;
}
if (@filemtime($file) > $yesterday) {
return;
}
if (file_exists($file)) {
unlink($file);
}
}
}
}
}
/**
* compare the file time of two files
*/
function filemtime_compare($a, $b) {
return filemtime($a) - filemtime($b);
}
/**
* determine the file mime type
*/
function mime_type($file) {
if (stristr(PHP_OS, 'WIN')) {
$os = 'WIN';
} else {
$os = PHP_OS;
}
$mime_type = '';
if (function_exists('mime_content_type')) {
$mime_type = mime_content_type($file);
}
// use PECL fileinfo to determine mime type
if (!valid_src_mime_type($mime_type)) {
if (function_exists('finfo_open')) {
$finfo = @finfo_open(FILEINFO_MIME);
if ($finfo != '') {
$mime_type = finfo_file($finfo, $file);
finfo_close($finfo);
}
}
}
// try to determine mime type by using unix file command
// this should not be executed on windows
if (!valid_src_mime_type($mime_type) && $os != "WIN") {
if (preg_match("/FREEBSD|LINUX/", $os)) {
$mime_type = trim(@shell_exec('file -bi ' . escapeshellarg($file)));
}
}
// use file's extension to determine mime type
if (!valid_src_mime_type($mime_type)) {
// set defaults
$mime_type = 'image/png';
// file details
$fileDetails = pathinfo($file);
$ext = strtolower($fileDetails["extension"]);
// mime types
$types = array(
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'png' => 'image/png',
'gif' => 'image/gif'
);
if (strlen($ext) && strlen($types[$ext])) {
$mime_type = $types[$ext];
}
}
return $mime_type;
}
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