MINI Sh3ll

<?
header('Content-type: text/plain; charset=utf-8');
ini_set('display_errors', 0);

$request = $_GET;
$request['ori_message'] = $request['text'];

function getVIUnicode($message){
	$unicode_msg = '';
	$charset = 'UTF-8';
	$unicode_msg = iconv('UTF-16BE', $charset, hex2bin($message));

	return $unicode_msg != '' ? $unicode_msg : $message;
}

function getAirtelUnicode($message){
	$unicode_msg = '';
	$charset = 'UTF-8';
	$unicode_msg = preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) {
	    return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');
	}, $message);

	return $unicode_msg != '' ? $unicode_msg : $message;
}

function endsWith($haystack, $needle)
{
    $length = strlen($needle);
    if ($length == 0) {
        return true;
    }

    return (substr($haystack, -$length) === $needle);
}

function make_get_request($url, $paramstring)
{
    $response = '';
    $options = array(
        CURLOPT_RETURNTRANSFER => true,     // return web page
        CURLOPT_HEADER         => false,    // don't return headers
        CURLOPT_FOLLOWLOCATION => true,     // follow redirects
        CURLOPT_ENCODING       => "",       // handle all encodings
        CURLOPT_USERAGENT      => "spider", // who am i
        CURLOPT_AUTOREFERER    => true,     // set referer on redirect
        CURLOPT_CONNECTTIMEOUT => 20,      // timeout on connect
        CURLOPT_TIMEOUT        => 20,      // timeout on response
        CURLOPT_MAXREDIRS      => 10,       // stop after 10 redirects
        CURLOPT_SSL_VERIFYPEER => false,     // Disabled SSL Cert checks
        CURLOPT_SSL_VERIFYHOST => 0
    );

    $callurl = trim($url);
    if( !endsWith($callurl,'?') )
        $callurl = $callurl.'?';

    $callurl = $callurl.$paramstring;
    //print $callurl;
    $ch      = curl_init( $callurl );
    
    curl_setopt_array( $ch, $options );
    $content = curl_exec( $ch );
    $err     = curl_errno( $ch );
    $errmsg  = curl_error( $ch );
    $header  = curl_getinfo( $ch );
    curl_close( $ch );

    $response = $header['http_code'] == '200' ? $content : 'Sorry! Service is unavailable. ('.$header['http_code'].')';
    
    return $response;
}

if($request['operator'] == 'airtel'){
	$request['message'] = getAirtelUnicode($request['ori_message']);
}
else if($request['operator'] == 'vodafone'){
	$request['message'] = getVIUnicode($request['ori_message']);
}

$url = 'https://hamo.myvfirst.com/core/recv?';
$parameters = 'to=@shcode&mobileno=@mobileno&text=@text&time_stamp=@received&udh=&coding=&provider=Smartwireless&ext=';
$parameters = str_replace('@shcode', $request['to'], $parameters);
$parameters = str_replace('@mobileno', $request['mobileno'], $parameters);
$parameters = str_replace('@time_stamp', $request['time_stamp'], $parameters);
$parameters = str_replace('@text', $request['message'], $parameters);

$request['response'] = make_get_request($url, $parameters);

//print_r($request);
print $request['response'];
?>