image.php


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<?php
	set_include_path(dirname(__FILE__) ."/include" . PATH_SEPARATOR .
		get_include_path());

	require_once "config.php";

	$url = base64_decode($_GET['url']);

	$filename = CACHE_DIR . '/images/' . sha1($url) . '.png';

	if (file_exists($filename)) {
		header("Content-type: image/png");
		echo file_get_contents($filename);
	} else {
		header("Location: $url");
	}
?>