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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Payumoney_lib
{
protected $_ci;
protected $payu_mode;
protected $payu_merchent_key;
protected $payu_salt;
protected $payu_base_url;
protected $hash_sequence = "key|txnid|amount|productinfo|firstname|email|u
df1|udf2|udf3|udf4|udf5|||||";
public function __construct()
{
//initialize the CI super-object
$this->_ci =& get_instance();
//load config
$this->_ci->load->config('payumoney', TRUE);
//get settings from config
$this->mode = PAY_MODE;
$this->merchent_key = MERCHANT_KEY;
$this->salt = SALT;
$this->base_url = $this->_ci->config->item('base_url', 'payumoney');
}
//==========================================================
public function get_key(){
return $this->merchent_key ;
}
//==========================================================
public function get_salt(){
return $this->salt;
}
//==========================================================
public function get_action_url(){
return $this->base_url . '/_payment';
}
//==========================================================
public function get_transaction_id(){
return substr(hash('sha256', mt_rand() . microtime()), 0, 20);
}
//==========================================================
public function get_hash( $posted ){
$hash_sequence = $this->hash_sequence;
$hash_vars_seq = explode('|', $hash_sequence);
$hash_string = '';
foreach( $hash_vars_seq as $hash_var ) {
$hash_string .= isset( $posted[$hash_var] ) ? $posted[$hash_var] : '';
$hash_string .= '|';
}
$hash_string .= $this->salt;
$hash = strtolower(hash('sha512', $hash_string));
return $hash;
}
//==========================================================
public function get_valid_hash( $posted ){
$salt = $this->salt;
$key = $this->merchent_key;
$status = $posted["status"];
$firstname = $posted["firstname"];
$amount = $posted["amount"];
$txnid = $posted["txnid"];
$posted_hash = $posted["hash"];
$key = $posted["key"];
$productinfo = $posted["productinfo"];
$email = $posted["email"];
$phone = $posted["phone"];
$user_id = $posted["user_id"];
$transaction_mode = $posted["transaction_mode"];
if ( isset( $posted["additionalCharges"]) ) {
$additional_charges = $posted["additionalCharges"];
$retHashSeq = $additional_charges.'|'. $salt.'|'.$status.'|||||||||||'.$email.'|'.$firstname.'|'.$productinfo.'|'.$amount.'|'.$txnid.'|'.$key;
} else {
$retHashSeq = $salt.'|'.$status.'|||||||||||'.$email.'|'.$firstname.'|'.$productinfo.'|'.$amount.'|'.$txnid.'|'.$key;
}
$hash = hash("sha512", $retHashSeq);
if ( $hash != $posted_hash ) {
return false;
} else {
return array('status' => $status, 'txnid' => $txnid, 'amount' => $amount, 'user_id' => $user_id, 'transaction_mode' => $transaction_mode);
}
}
//==========================================================
}