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<?php /* -*- Mode: php; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
global $UTIL_DIR, $MODULES_DIR;
include_once($UTIL_DIR . "/modules.php");
class ImageSize {
public $width;
public $height;
public function ImageSize($w, $h)
{
$this->width = $w;
$this->height = $h;
}
};
function rescale($image, $maxwidth, $maxheight)
{
$width = imagesx($image);
$height = imagesy($image);
if($width <= $maxwidth && $height <= $maxheight) return $image;
$scale = 1;
if($width > $maxwidth) $scale = $width / $maxwidth;
if($height / $scale > $maxheight) $scale = $height / $maxheight;
$image_p = imagecreatetruecolor($width / $scale, $height / $scale);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width / $scale, $height / $scale, $width, $height);
return $image_p;
}
function errorImage($message)
{
header("Content-type: image/png");
$im = @imagecreate(8 + strlen($message) * 5, 20)
or die("Cannot Initialize new GD image stream");
$background_color = imagecolorallocate($im, 0, 0, 0);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5, $message, $text_color);
imagepng($im);
imagedestroy($im);
}
function getCachedImage($filename, $mod, $cat)
{
global $modules;
loadModule($mod);
if(!$modules[$mod]) die(404);
if(!method_exists($modules[$mod], "getImageSize")) die(404);
$size = $modules[$mod]->getImageSize($cat);
$maxwidth = $size->width;
$maxheight = $size->height;
/*
if($mod == "discography") {
if($cat == "cover") { $maxwidth = 100; $maxheight = 100; }
}
if($mod == "gallery") {
if($cat == "randomimage") { $maxwidth = 100; $maxheight = 100; }
if($cat == "photo") { $maxwidth = 100; $maxheight = 100; }
if($cat == "albumicon") { $maxwidth = 100; $maxheight = 100; }
}
*/
global $IMAGECACHE, $JPEG_CACHE_QUALITY;
$fullfilename = $IMAGECACHE . "/" . $maxwidth . ":" . $maxheight . ":". urlencode($filename);
// Test the storage dir
if(!file_exists($IMAGECACHE)) {
if(!mkdir($IMAGECACHE)) errorImage("Could not create directory: " . $IMAGECACHE);
}
if(!is_dir($IMAGECACHE)) errorImage($IMAGECACHE . " exists but is not a directory");
if(!is_readable($IMAGECACHE) || !is_writeable($IMAGECACHE) || !is_executable($IMAGECACHE)) {
errorImage($IMAGECACHE . " exists but does not have the correct permissions. (r/w/x)");
}
// end of dir test
if(!file_exists($fullfilename)) {
$url = parse_url($filename);
$filetype = strrchr($url["path"], '.');
if( true || ping($url["hostname"], 1000) != -1) {
error_reporting(E_ERROR | E_PARSE);
switch(strtolower($filetype)) {
case ".jpeg":
case ".jpg":
$image = imagecreatefromjpeg(urldecode($filename));
if(!$image) errorImage("Could not read: ". $filename);
$image = rescale($image, $maxwidth, $maxheight);
imagejpeg($image, $fullfilename, $JPEG_CACHE_QUALITY);
break;
case ".gif":
$image = imagecreatefromgif(urldecode($filename));
if(!$image) errorImage("Could not read: ". $filename);
$image = rescale($image, $maxwidth, $maxheight);
imagegif($image, $fullfilename);
break;
case ".png":
$image = imagecreatefrompng(urldecode($filename));
if(!$image) errorImage("Could not read: ". $filename);
$image = rescale($image, $maxwidth, $maxheight);
imagepng($image, $fullfilename);
break;
default:
if(!$image) errorImage("Unknown image type " . $filetype);
break;
}
error_reporting(E_ALL ^ E_NOTICE);
}
}
header('Content-Description: File Transfer');
header('Content-Type: image/jpeg');
header('Content-Length: ' . filesize($fullfilename));
header('Content-Disposition: inline; filename=' . basename($filename));
header('Last-Modified: ' . date("r", filemtime($fullfilename)));
readfile($fullfilename);
}
?>
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