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<?php
include_once("config.php");
include_once($UTIL_DIR . "/ping.php");
function rescale($image) {
$maxwidth = 300;
$maxheight = 240;
$width = imagesx($image);
$height = imagesy($image);
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;
}
$fullfilename = $IMAGECACHE . "/" . urlencode($filename);
if(!file_exists($fullfilename)) {
$url = parse_url($filename);
$filetype = strrchr($url["path"], '.');
if( true || ping($url["hostname"], 1000) != -1) {
if(strcasecmp($filetype, ".jpeg") == 0 || strcasecmp($filetype, ".jpg") == 0) {
$image = imagecreatefromjpeg(urldecode($filename));
if(!$image) die(404);
$image = rescale($image);
imagejpeg($image, $fullfilename, 90);
} else if(strcasecmp($filetype, ".gif") == 0) {
$image = imagecreatefromgif(urldecode($filename));
if(!$image) die(404);
$image = rescale($image);
imagegif($image, $fullfilename);
} else if(strcasecmp($filetype, ".png") == 0) {
$image = imagecreatefrompng(urldecode($filename));
if(!$image) die(404);
$image = rescale($image);
imagepng($image, $fullfilename);
} else {
echo "<p>Unknown image format " . $filetype . "</p>";
}
}
}
header('Content-Description: File Transfer');
header('Content-Type: image/jpeg');
header('Content-Length: ' . filesize($fullfilename));
header('Content-Disposition: inline; filename=' . basename($filename));
readfile($fullfilename);
?>
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