[eluser]Uto[/eluser]
After trying some solutions, I sticked to the first one solution provided, having a php script out of CI resending the GET parameter as POST, and it apparently works fine. Here is the code (I used curl):
Code:
$XML = $_GET["peticion"];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.mysite.com/index.php/callback/curl");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,"peticion=$XML");
$result= curl_exec ($ch);
curl_close ($ch);
Simple and effective