СS:Bans 1.3-billing

<?php

class Robokassa
{
private $login = null;
private $pass1 = null;
private $pass2 = null;
private $link = 'https://merchant.roboxchange.com/Index.aspx';
private $testing = false;
private $success = false;

function __construct()
{
$this->login = $this->params['robokassa_login'];
$this->pass1 = Yii::app( )->params['robokassa_pass1'];
$this->pass2 = Yii::app( )->params['robokassa_pass2'];

if (Yii::app( )->params['robokassa_testing'])
{
$this->link = 'http://test.robokassa.ru/Index.aspx';

$this->testing = true;
}
}

function isSuccess()
{
return $this->success;
}

function getIdField()
{
return 'InvId';
}

function getForm($model)
{
$Sign = md5( $this->login . ':' . $model->sum . ':' . $model->id . ':' . $this->pass1 );
$data['SUM'] = $model->sum;
$data['URL'] = $this->link;
$data['Hidden']['MrchLogin'] = $this->login;
$data['Hidden']['OutSum'] = $model->sum;
$data['Hidden']['InvId'] = $model->id;
$data['Hidden']['Desc'] = $model->payDesc;
$data['Hidden']['SignatureValue'] = $Sign;

return $data;
}

function resultUrl($model)
{
if ((double)$_POST['OutSum'] != (double)$model->sum)
return 'Invalid OutSum';

$Sign = md5($_POST['OutSum'] . ':' . $_POST['InvId'] . ':' . $this->pass2 );

if ($Sign != strtolower( $_POST['SignatureValue'] ))
return 'Invalid Sign';

$this->success = true;

return 'OK' . $_POST['InvId'];
}
}