205 lines
6.3 KiB
PHP
205 lines
6.3 KiB
PHP
<?php defined('SYSPATH') or die('No direct access allowed.');
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/**
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* This class provides PAYPAL support
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*
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* @package Checkout
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* @category Plugins
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* @author Deon George
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* @copyright (c) 2009-2013 Open Source Billing
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* @license http://dev.osbill.net/license.html
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*/
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abstract class Checkout_Plugin_Paypal extends Checkout_Plugin {
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protected $url_prod = 'www.paypal.com';
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protected $url_test = 'www.sandbox.paypal.com';
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private $ipn_test = '173.0.82.126';
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protected $curlopts = array(
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CURLOPT_CONNECTTIMEOUT => 60,
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CURLOPT_FAILONERROR => TRUE,
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CURLOPT_FOLLOWLOCATION => FALSE,
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CURLOPT_HEADER => FALSE,
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CURLOPT_HTTPPROXYTUNNEL => FALSE,
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CURLOPT_RETURNTRANSFER => TRUE,
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CURLOPT_TIMEOUT => 30,
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CURLOPT_SSL_VERIFYHOST => FALSE,
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CURLOPT_SSL_VERIFYPEER => FALSE,
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CURLOPT_VERBOSE => FALSE,
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);
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/**
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* User return from Paypal after payment
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*/
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public function after(Cart $co) {
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SystemMessage::add(array(
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'title'=>_('Payment Processing'),
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'type'=>'info',
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'body'=>sprintf('Thank you for your payment with paypal. It will be processed and applied to your cart items automatically in due course.'),
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));
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HTTP::redirect('/');
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}
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/**
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* User cancelled from Paypal and returned
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*/
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public function cancel(Cart $co) {
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SystemMessage::add(array(
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'title'=>_('Payment Cancelled'),
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'type'=>'info',
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'body'=>sprintf('Payment with Paypal was cancelled at your request.'),
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));
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HTTP::redirect('cart');
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}
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/**
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* Paypal payment notification and verification
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*/
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public function notify(Model_Checkout_Notify $cno) {
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$debug_mode = Kohana::$config->load('debug')->checkout_notify;
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// If testing
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if (! $cno->status OR $cno->processed OR ($debug_mode AND Request::$client_ip == $this->ipn_test))
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return ('Thank you');
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$co = Cart::instance(isset($cno->data['custom']) ? $cno->data['custom'] : '');
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if (! $co->contents())
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return _('Thank you!');
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if (! $debug_mode) {
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$request = Request::factory(sprintf('https://%s/cgi-bin/webscr',isset($cno->data['test_ipn']) ? $this->url_test : $this->url_prod))
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->method('POST');
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$request->client()->options(Arr::merge($this->curlopts,array(
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CURLOPT_POSTFIELDS => Arr::merge(array('cmd'=>'_notify-validate'),$cno->data),
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)));
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$response = $request->execute();
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}
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switch ($debug_mode ? 'VERIFIED' : $response->body()) {
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case 'VERIFIED':
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// Verify that the IPN is for us.
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// @todo This should be in the DB.
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if ($cno->data['business'] == 'deon_1260578114_biz@graytech.net.au') {
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switch ($cno->data['payment_status']) {
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case 'Completed':
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// Our cart items total.
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$total = $co->total();
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$po = ORM::factory('Payment');
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// Does the payment cover the cart total?
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if ($this->co->fee_passon AND $cno->data['mc_gross'] == $total+$this->co->fee($total)) {
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// Store the amounts in an array, so we can pro-rata the fee to each item.
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$amts = array();
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// Add the fee to each item (pro-rated)
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for ($c=1;$c<=$cno->data['num_cart_items'];$c++) {
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// The payment fee - there should only be 1 of these, and it should be the last item.
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// We assume fees are added to $po->items() which are invoices.
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if (preg_match('/^0:/',$cno->data['item_number'.$c])) {
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$i = $j = 0;
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foreach ($po->items() as $pio) {
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$io = ORM::factory('Invoice',$pio->invoice_id);
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// @todo Need to do tax.
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$iio = $io->add_item();
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$iio->quantity = 1;
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$iio->module_id = $cno->mid()->id;
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$iio->item_type = 125; // Payment Fee
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$iio->price_base = (++$j==count($amts)) ? $cno->data['mc_gross_'.$c]-$i : Currency::round($pio->alloc_amt/array_sum($amts)*$cno->data['mc_gross_'.$c]);
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$iio->date_start = $iio->date_stop = time();
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// @todo Validate Save
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$io->save();
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$pio->alloc_amt = ($pio->alloc_amt+$iio->price_base > $pio->invoice->total()) ? $pio->alloc_amt : $pio->alloc_amt+$iio->price_base;
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$i += $iio->price_base;
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}
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} elseif (is_numeric($cno->data['item_number'.$c])) {
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array_push($amts,$cno->data['mc_gross_'.$c]);
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$cio = ORM::factory('cart',$cno->data['item_number'.$c]);
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if ($cio->loaded())
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switch ($cio->motype()) {
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case 'invoice':
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// Validate we are all the same account
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// @todo Need to handle if the cart has more than 1 account.
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if (! $po->account_id AND $cio->mo()->account_id) {
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$po->account_id = $cio->mo()->account_id;
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} elseif ($po->account_id != $cio->mo()->account_id) {
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throw new Kohana_Exception('Unable to handle payments for multiple accounts');
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}
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$po->add_item($cio->module_item)->alloc_amt = $cno->data['mc_gross_'.$c];
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break;
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default:
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throw new Kohana_Exception('Dont know how to handle :item',array(':item',$cio->motype()));
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}
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// Dont know how to handle this item.
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} else {
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// @todo
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}
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}
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// @todo Validate Save
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$po->account_id = $cio->mo()->account_id;
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$po->fees_amt = $cno->data['mc_fee'];
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$po->total_amt = $cno->data['mc_gross'];
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$po->date_payment = strtotime($cno->data['payment_date']);
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$po->checkout_id = $this->co->id;
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$po->notes = $cno->data['txn_id'];
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$po->save();
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// Clear the cart
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if (! $debug_mode)
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$co->delete();
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} elseif (! $this->co->fee_passon AND $cno->data['mc_gross']-$cno->data['mc_fee'] == $total) {
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// Ignore the fee
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} else {
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echo Debug::vars('IPN doesnt match cart total');
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// If there is more than 1 item in the cart, we'll leave it to an admin to process.
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if ($cno->data['num_cart_items'] == 1) {
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echo Debug::vars('Apply to cart item');
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} else {
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// @todo - add the payment, with no payment items
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echo Debug::vars('Leave for admin');
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}
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}
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break;
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case 'Refunded':
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default:
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throw new Kohana_Exception('Unable to handle payments of type :type',array(':type'=>$cno->data['payment_status']));
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}
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} else {
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$cno->status = FALSE;
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}
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break;
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case 'INVALID':
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default:
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$cno->status = FALSE;
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}
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$cno->processed = TRUE;
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if (! $debug_mode)
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$cno->save();
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return _('Processed, thank you!');
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}
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}
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?>
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