class_gw_protx.php

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	function gw_validate_payment( $extra=array() )
	{
		//--------------------------------------
		// INIT
		//--------------------------------------
		
		$username = $extra['extra_1'];
		$password = $extra['extra_2'];
		
		//--------------------------------------
		// Debug...
		//--------------------------------------
		
		if ( GW_TEST_MODE_ON )
		{
			if ( ! is_array( $_POST ) or ! count( $_POST ) )
			{
				$_POST = $_GET;
			}
		}
		
		//--------------------------------------
		// Process GET data
		//--------------------------------------
		
      	$values = $this->_get_token( $this->_simple_xor( base64_decode($_GET['crypt']), $password ) );
		
		foreach( $values as $k => $v )
		{
			$_POST[ 'px_'.$k ] = $v;
		}
		
		//--------------------------------------
		// Check...
		//--------------------------------------
		
		if ( $values['Status'] != 'OK' AND ! GW_TEST_MODE_ON )
		{
			$this->error = 'not_valid';
			return array( 'verified' => FALSE );
		}
		
		//--------------------------------------
		// Populate return array
		//--------------------------------------
		
		list( $tix, $member_id, $purchase_package_id, $cur_sub_id  ) = explode( "x", $values['VendorTxCode'] );
		
	    $return = array( 'currency_code'      => 'GBP',
						 'payment_amount'     => sprintf( "%.2f", $values['Amount'] ),
						 'member_unique_id'   => intval($member_id),
						 'purchase_package_id'=> intval($purchase_package_id),
						 'current_package_id' => intval($cur_sub_id),
						 'verified'           => TRUE,
						 'subscription_id'    => '0-'.intval($member_id),
						 'transaction_id'     => $values['VPSTxID'] );
		
		//--------------------------------------
		// Sort out payment status
		//--------------------------------------
		
		$return['payment_status'] = 'ONEOFF';
		
		//--------------------------------------
		// Pass back to handler
		//--------------------------------------
		
		return $return;
	}
	
	/*-------------------------------------------------------------------------*/
	// Process recurring payment check
	// Return: array( 'amount_paid', 'state' [ PAID, DEAD, FAILED, PENDING ]
	/*-------------------------------------------------------------------------*/
	
	function gw_do_normal_payment_check( $balance_to_pay=0, $total_package_cost=0, $upgrade=0 )
	{
		$this->gateway->error = "";
		
		//--------------------------------------
		// INIT
		//--------------------------------------
		
		$return = array();
		
		//--------------------------------------
		// Completed
		//--------------------------------------
	
		if ( $upgrade )
		{
			//--------------------------------------
			// Completed
			//--------------------------------------
		
			$return['amount_paid'] = $balance_to_pay;
			$return['state']       = 'PAID';
		}
		else
		{
			//--------------------------------------
			// Completed
			//--------------------------------------
		
			$return['amount_paid'] = $total_package_cost;
			$return['state']       = 'PAID';
		}
		
		return $return;
	}
	
	/*-------------------------------------------------------------------------*/
	// Process recurring payment check
	// Return: array( 'amount_paid', 'state' [ PAID, DEAD, FAILED, PENDING ]
	/*-------------------------------------------------------------------------*/
	
	function gw_do_recurring_payment_check( $balance_to_pay=0, $total_package_cost=0 )
	{
		$this->gateway->error = "";
		
		//--------------------------------------
		// INIT
		//--------------------------------------
		
		$return = array();
		
		return $return;
	}
	
	
	//---------------------------------------
	// Return ACP Package  Variables
	//
	// Returns names for the package custom
	// fields, etc
	//---------------------------------------
	
	function acp_return_package_variables()
	{
	
		$return = array(
						  'subextra_custom_1' => array( 'used' => 0, 'varname' => '' ),
						  'subextra_custom_2' => array( 'used' => 0, 'varname' => '' ),
						  'subextra_custom_3' => array( 'used' => 0, 'varname' => '' ),
						  'subextra_custom_4' => array( 'used' => 0, 'varname' => '' ),
						  'subextra_custom_5' => array( 'used' => 0, 'varname' => '' ),
					   );
					   
		return $return;
	
	}
	
	//---------------------------------------
	// Return ACP Method Variables
	//
	// Returns names for the package custom
	// fields, etc
	//---------------------------------------
	
	function acp_return_method_variables()
	{
	
		$return = array(
						  'submethod_custom_1' => array( 'used' => 1, 'formname' => 'Protx User Name', 'formextra' => 'This is the username assigned to your Protx account' ),
						  'submethod_custom_2' => array( 'used' => 1, 'formname' => 'Protx Encryption Password' , 'formextra' => 'This is the password assigned to your Protx account  to encrypt the form data' ),
						  'submethod_custom_3' => array( 'used' => 0, 'varname' => '' ),
						  'submethod_custom_4' => array( 'used' => 0, 'varname' => '' ),
						  'submethod_custom_5' => array( 'used' => 0, 'varname' => '' ),
					   );
					   
		return $return;
	
	}
	
	function _simple_xor($instr, $k)
	{
     	$kList = array();
    	$output = "";

    	for($i = 0; $i < strlen($k); $i++)
    	{
     		$kList[$i] = ord(substr($k, $i, 1));
      	}

      	for($i = 0; $i < strlen($instr); $i++)
      	{
        	$output.= chr(ord(substr($instr, $i, 1)) ^ ($kList[$i % strlen($k)]));
      	}

      	return $output;
    }

	function _get_token($thisString)
	{

		$Tokens = array("Status","StatusDetail","VendorTxCode","VPSTxID","TxAuthNo","Amount","AVSCV2");

		$output = array();
		$resultArray = array();

		for ($i = count($Tokens)-1; $i >= 0 ; $i--)
		{
			$start = strpos($thisString, $Tokens[$i]);
			
        	if ($start !== false)
        	{
          		$resultArray[$i]->start = $start;
          		$resultArray[$i]->token = $Tokens[$i];
       		}
      	}

      	sort($resultArray);

      	for ($i = 0; $i<count($resultArray); $i++)
      	{
        	$valueStart = $resultArray[$i]->start + strlen($resultArray[$i]->token) + 1;
        	if ($i==(count($resultArray)-1))
        	{
          		$output[$resultArray[$i]->token] = substr($thisString, $valueStart);
        	}
        	else
        	{
          		$valueLength = $resultArray[$i+1]->start - $resultArray[$i]->start - strlen($resultArray[$i]->token) - 2;
          		$output[$resultArray[$i]->token] = substr($thisString, $valueStart, $valueLength);
        	}
      	}

      	return $output;
    }
    
}

 
?>