';
if (THUMB_DEBUG) echo 'Current file =' . __FILE__ . '
';
$src=(isset($_GET['thumbsrc']))?$_GET['thumbsrc']:'';
$new_width=(isset($_GET['w']))?$_GET['w']:100;
$new_height=(isset($_GET['h']))?$_GET['h']:100;
$zoom_crop=(isset($_GET['zc']))?$_GET['zc']:1;
$quality=(isset($_GET['q']))?$_GET['q']:80;
$filters=(isset($_GET['filters']))?$_GET['filters']:'';
$document_root = get_document_root($src);
$src = $document_root . '/' . $src;
create_cache_file($cache_dir . '/'. $cache_file, $src, $new_width, $new_height,$zoom_crop,$quality,$filters,true); //output to browser!
die();
}
function get_thumb_image_url($src, $w=100,$h=100,$zc=0,$q=80,$f='')
{
if (THUMB_DEBUG) echo 'inside get_thumb_image_url...............................
';
if (THUMB_DEBUG) echo 'Current file =' . __FILE__ . '
';
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', '1.00'); // version number (to force a cache refresh)
$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),
);
$src = cleanSource($src);
if (THUMB_DEBUG) echo 'src = '.$src.'
';
$rel_src = $src;
$document_root = get_document_root($src);
if (THUMB_DEBUG) echo 'document_root = '.$document_root.'
';
if ($document_root) $src = $document_root . '/' . $src;
// last modified time (for caching)
$lastModified = filemtime($src);
// get properties
$new_width = $w;
$new_height = $h;
$zoom_crop = $zc;
$quality = $q;
$filters = $f;
$wud = wp_upload_dir();
if (!$wud['basedir'])
return get_bloginfo('template_url') . '/_thumbnailing.php?thumbsrc='. $rel_src . "&w=$new_width&h=$new_height&zc=$zoom_crop&q=$quality";
$thumb_cache_dir = 'ThumbCache';
$cache_dir = $wud['basedir'].'/'.$thumb_cache_dir;
if (THUMB_DEBUG) echo "cache_dir = $cache_dir
";
$mime_type = mime_type($src);
if(!valid_src_mime_type($mime_type))
{
displayError("Invalid src mime type: " .$mime_type);
return '';
}
$ext = '.jpg';
if ($mime_type == 'image/png') $ext = '.png';
$cache_file = get_cache_file($src, $w,$h,$z,$q,$f,$lastModified, $ext);
if (file_exists($cache_dir . '/'. $cache_file))
{
return $wud['baseurl'].'/'.$thumb_cache_dir.'/'.$cache_file;
}
// If we are here it means that we nead to generate new cache file
if( !check_cache_is_writable( $cache_dir))
{
if (THUMB_DEBUG) echo "cache_dir is not writtable
";
//TODO: return timThumb url
//die();
return get_bloginfo('template_url') . '/_thumbnailing.php?thumbsrc='. $rel_src . "&w=$new_width&h=$new_height&zc=$zoom_crop&q=$quality";
}
// if not in cache then clear some space and generate a new file
cleanCache($cache_dir);
@ini_set('memory_limit', "30M");
// check to see if GD function exist
if(!function_exists('imagecreatetruecolor'))
{
displayError("GD Library Error: imagecreatetruecolor does not exist");
return '';
}
//echo __LINE__ . $cache_file. __LINE__ ;
create_cache_file($cache_dir . '/'. $cache_file, $src, $new_width, $new_height,$zoom_crop,$quality,$filters);
//echo __LINE__ . $wud['baseurl'].'/'.$thumb_cache_dir.'/'.$cache_file. __LINE__ ;
return $wud['baseurl'].'/'.$thumb_cache_dir.'/'.$cache_file;
}
function create_cache_file($cache_file, $src, $new_width = 100, $new_height=100,$zoom_crop=0,$quality=80,$filters='',$output_to_browser = false)
{
$mime_type = mime_type($src);
if(!valid_src_mime_type($mime_type))
{
displayError("Invalid src mime type: " .$mime_type);
//if ($output_to_browser) die();
return;
}
if(strlen($src) && file_exists($src))
{
if (THUMB_DEBUG) echo 'before open_image src = ' . $src . '
';
// open the existing image
$image = open_image($mime_type, $src);
if($image === false) {
displayError('Unable to open image : ' . $src);
if ($output_to_browser) return;
}
//var_dump($image);
// Get original width and height
$width = imagesx($image);
$height = imagesy($image);
// don't allow new width or height to be greater than the original
if( $new_width > $width ) {
$new_width = $width;
}
if( $new_height > $height ) {
$new_height = $height;
}
// 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 != "") {
// 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
if (!$output_to_browser) //save as file
{
switch ($mime_type)
{
case 'image/png':
$quality = floor((100-$quality) * 0.09);
imagepng($canvas, $cache_file, $quality);
break;
default:
imagejpeg ($canvas, $cache_file, $quality);
}
}
else // output to browser without saving
{
switch ($mime_type)
{
case 'image/png':
header("Content-Type: image/png");
header("Accept-Ranges: bytes");
imagepng($canvas);
break;
default:
header("Content-Type: image/jpeg");
header("Accept-Ranges: bytes");
imagejpeg ($canvas);
}
}
imagedestroy($canvas);
} else
{
// Something wrong with image url
}
}
/**
*
*/
function open_image($mime_type, $src)
{
if (THUMB_DEBUG) echo 'open_image src = ' . $src . '
';
//echo __LINE__ . $mime_type;
if(stristr($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 $image;
}
/**
* clean out old files from the cache
* you can change the number of files to store and to delete per loop in the defines at the top of the code
*/
function cleanCache($cache_dir)
{
$files = glob($cache_dir. "/*", GLOB_BRACE);
$yesterday = time() - (24 * 60 * 60);
if (is_array($files) && count($files) > 0) {
usort($files, "filemtime_compare");
$i = 0;
if (count($files) > CACHE_SIZE)
{
foreach ($files as $file)
{
$i ++;
if ($i >= CACHE_CLEAR) return;
if (filemtime($file) > $yesterday) return;
unlink($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);
$mime_type = finfo_file($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 "' . $file . '"'));
}
}*/
// use file's extension to determine mime type
if (!valid_src_mime_type($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];
}
}
//echo $mime_type;
return $mime_type;
}
/**
*
*/
function valid_src_mime_type($mime_type) {
if (preg_match("/jpg|jpeg|gif|png/i", $mime_type)) {
return true;
}
return false;
}
/**
*
*/
function check_cache_is_writable($cache_dir)
{
// return false;
// make sure cache dir exists
if (!file_exists($cache_dir))
{
// give 777 permissions so that developer can overwrite
// files created by web server user
@mkdir($cache_dir);
@chmod($cache_dir, 0777);
}
if (!is_writable($cache_dir))
@chmod($cache_dir, 0777);
else
return true;
return (is_writable($cache_dir));
//show_cache_file($cache_dir, $mime_type);
}
/**
*
*/
function get_cache_file($src, $w=100,$h=100,$zc=0,$q=80,$f='',$lastModified, $ext)
{
//global $lastModified;
$cachename = $src . $w . $h . $zc . $q . $f . VERSION . $lastModified;
$cache_file = md5($cachename) . $ext;
return $cache_file;
}
/**
* check to if the url is valid or not
*/
function valid_extension ($ext) {
if (preg_match("/jpg|jpeg|png|gif/i", $ext)) {
return TRUE;
} else {
return FALSE;
}
}
/**
* tidy up the image source url
*/
function cleanSource($src) {
// remove slash from start of string
if(strpos($src, "/") == 0) {
$src = substr($src, -(strlen($src) - 1));
}
return $src;
// remove http/ https/ ftp
$src = preg_replace("/^((ht|f)tp(s|):\/\/)/i", "", $src);
// remove domain name from the source url
$host = $_SERVER["HTTP_HOST"];
$src = str_replace($host, "", $src);
$host = str_replace("www.", "", $host);
$src = str_replace($host, "", $src);
// don't allow users the ability to use '../'
// in order to gain access to files below document root
// src should be specified relative to document root like:
// src=images/img.jpg or src=/images/img.jpg
// not like:
// src=../images/img.jpg
$src = preg_replace("/\.\.+\//", "", $src);
// get path to image on file system
$src = get_document_root($src) . '/' . $src;
return $src;
}
/**
*
*/
function get_document_root ($src)
{
//return '';
if (THUMB_DEBUG) echo "document_root src = ".$src."
";
if (THUMB_DEBUG) echo "_SERVER['DOCUMENT_ROOT'] = ".$_SERVER['DOCUMENT_ROOT']."
";
// check for unix servers
if(@file_exists($_SERVER['DOCUMENT_ROOT'] . '/' . $src)) {
return $_SERVER['DOCUMENT_ROOT'];
}
// check from script filename (to get all directories to timthumb location)
if (THUMB_DEBUG) echo '_SERVER[SCRIPT_FILENAME] = ' . $_SERVER['SCRIPT_FILENAME'] . '
';
$parts = array_diff(explode('/', $_SERVER['SCRIPT_FILENAME']), explode('/', $_SERVER['DOCUMENT_ROOT']));
if (THUMB_DEBUG) echo 'parts = ' . print_r($parts,true) . '
';
$path = $_SERVER['DOCUMENT_ROOT'] . '/';
foreach ($parts as $part) {
$path .= $part . '/';
if (@file_exists($path . $src)) {
return $path;
}
}
// check from script filename (to get all directories to timthumb location)
$parts = explode('/', $_SERVER['SCRIPT_FILENAME']);
if (THUMB_DEBUG) echo 'parts = ' . print_r($parts,true) . '
';
$path = '';
foreach ($parts as $part) {
$path .= $part . '/';
if (@file_exists($path . $src)) {
return $path;
}
}
// the relative paths below are useful if timthumb is moved outside of document root
// specifically if installed in wordpress themes like mimbo pro:
// /wp-content/themes/mimbopro/scripts/timthumb.php
$paths = array(
".",
"..",
"../..",
"../../..",
"../../../..",
"../../../../..",
"../../../../../..",
"../../../../../../..",
"../../../../../../../.."
);
foreach($paths as $path) {
if(@file_exists($path . '/' . $src)) {
return $path;
}
}
if (THUMB_DEBUG) echo "path = $path
";
// special check for microsoft servers
//if(!isset($_SERVER['DOCUMENT_ROOT'])) {
$path = str_replace("/", "\\", $_SERVER['ORIG_PATH_INFO']);
$path = str_replace($path, "", $_SERVER['SCRIPT_FILENAME']);
if( @file_exists( $path . '/' . $src ) ) {
return $path;
}
//}
if ($src[0] === '~') return get_document_root (substr($src,1));
//displayError('file not found ' . $src);
if (THUMB_DEBUG) echo ('get_document root: file not found ' . $src . '
');
return '';
}
/**
* generic error message
*/
function displayError($errorString = 'displayError')
{
//header('HTTP/1.1 400 Bad Request');
echo $errorString .'';
}
function test_thumb_cache()
{
$fc='';
$message ='';
$wud = wp_upload_dir();
if (!$wud['basedir'])
{
$option_upload_dir = get_option( 'upload_path' );
if ($option_upload_dir)
$option_upload_dir = ''.$option_upload_dir.'';
else
$option_upload_dir = '(usually wp-content/uploads)';
$message = "Don't you have uploads dir? (Details)"
. ""
. "Cannot find your uploads dir $option_upload_dir.
"
. 'Please either edit "Store uploads in this folder" option (Settigs -> Miscellaneous) or create the dir at your hosting'
. "
";
return $message;
}
$thumb_cache_dir = 'ThumbCache';
$cache_dir = $wud['basedir'].'/'.$thumb_cache_dir;
if (THUMB_DEBUG) echo "cache_dir = $cache_dir
";
if (!@check_cache_is_writable($cache_dir))
{
/*$message = "Thumbnailing does not work. (Details)"
. ""
. "To use thumbnailing you need to set write permissions (0777) to the dir $cache_dir"
. "
";*/
$message = "Thumbnail cache dir is not writtable (Details)"
. ""
. "To use thumbnail caching (highly recomended!) you need to set write permissions (0777) to the dir $cache_dir"
. "
";
}
return $message;
}
function test_thumb_document_root()
{
//return (get_document_root
}
?>