Init

payment/OKPay/OKPay.php

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+<?php
+
+require_once('api/Simpla.php');
+
+class OKPay extends Simpla
+{	
+	public function checkout_form($order_id, $button_text = null)
+	{
+		if(empty($button_text))
+			$button_text = 'Перейти к оплате';
+		
+		$order = $this->orders->get_order((int)$order_id);
+		$payment_method = $this->payment->get_payment_method($order->payment_method_id);
+		$payment_currency = $this->money->get_currency(intval($payment_method->currency_id));
+		$settings = $this->payment->get_payment_settings($payment_method->id);
+		
+		$price = round($this->money->convert($order->total_price, $payment_method->currency_id, false), 2);
+		$currency = $this->money->get_currency(intval($payment_method->currency_id));
+		
+		// описание заказа
+		// order description
+		$desc = 'Оплата заказа №'.$order->id;
+		
+
+		$return_url = $this->config->root_url.'/payment/OKPay/callback.php';
+		
+		$button =	'<form action="https://www.okpay.com/process.html" method="POST"/>'.
+					'<input type="hidden" name="ok_receiver" value="'.$settings['okpay_reciever'].'" />'.
+					'<input type="hidden" name="ok_invoice" value="'.$order->id.'" />'.
+					'<input type="hidden" name="ok_item_1_name" value="'.$desc.'" />'.
+					'<input type="hidden" name="ok_item_1_price" value="'.$price.'" />'.
+					'<input type="hidden" name="ok_currency" value="'.$currency->code.'" />'.
+					'<input type="hidden" name="ok_return_success" value="'.$return_url.'" />'.
+					'<input type="hidden" name="ok_return_fail" value="'.$return_url.'" />'.
+					'<input type=image src="https://www.okpay.com/img/buttons/x03.gif" alt="'.$button_text.'">'.
+					'</form>';
+				
+		return $button;
+	}
+}

payment/OKPay/callback.php

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+<?php
+
+/**
+ * Simpla CMS
+ *
+ * @copyright 	2011 Denis Pikusov
+ * @link 		http://simplacms.ru
+ * @author 		Denis Pikusov
+ *
+ * К этому скрипту обращается OKPay в процессе оплаты
+ *
+ */
+
+// Работаем в корневой директории
+chdir ('../../');
+require_once('api/Simpla.php');
+$simpla = new Simpla();
+
+
+// Read the post from OKPAY and add 'ok_verify' 
+$req = 'ok_verify=true'; 
+
+foreach ($_POST as $key => $value) {
+	$value = urlencode(stripslashes($value));
+	$req .= "&$key=$value";
+}
+
+// Post back to OKPAY to validate 
+$header .= "POST /ipn-verify.html HTTP/1.0\r\n"; 
+$header .= "Host: www.okpay.com\r\n"; 
+$header .= "Content-Type: application/x-www-form-urlencoded\r\n"; 
+$header .= "Content-Length: " . strlen($req) . "\r\n\r\n"; 
+$fp = fsockopen ('www.okpay.com', 80, $errno, $errstr, 30); 
+ 
+if (!$fp)
+{
+	my_exit('Error postback');
+}
+
+fputs ($fp, $header . $req); 
+while (!feof($fp))
+    $res = fgets ($fp, 1024); 
+fclose ($fp);
+
+if ($res != "VERIFIED")
+{
+	my_exit('Not verified');
+}
+
+
+// Проверяем данные
+if($_POST['ok_txn_kind'] !== 'payment_link')
+	my_exit('Invalid ok_txn_kind');
+
+if($_POST['ok_txn_status'] !== 'completed')
+	my_exit('Invalid ok_txn_status');
+
+if(intval($_POST['ok_ipn_test']) !== 0)
+	my_exit('Test ipn');
+
+$order_id = intval($_POST['ok_invoice']);
+
+////////////////////////////////////////////////
+// Выберем заказ из базы
+////////////////////////////////////////////////
+$order = $simpla->orders->get_order(intval($order_id));
+if(empty($order))
+	my_exit('Оплачиваемый заказ не найден');
+ 
+////////////////////////////////////////////////
+// Выбираем из базы соответствующий метод оплаты
+////////////////////////////////////////////////
+$method = $simpla->payment->get_payment_method(intval($order->payment_method_id));
+if(empty($method))
+	my_exit("Неизвестный метод оплаты");
+	
+$settings = unserialize($method->settings);
+$payment_currency = $simpla->money->get_currency(intval($method->currency_id));
+
+// Проверяем получателя платежа
+if($_POST['ok_reciever'] != $settings['okpay_receiver'])
+	my_exit("bad reciever");
+
+// Проверяем валюту
+if($_POST['ok_txn_currency'] != $payment_currency->code)
+	my_exit("bad currency");
+
+// Нельзя оплатить уже оплаченный заказ  
+if($order->paid)
+	my_exit('Этот заказ уже оплачен');
+
+if($_POST['ok_item_1_price'] != round($simpla->money->convert($order->total_price, $method->currency_id, false), 2) || $_POST['ok_item_1_price']<=0)
+	my_exit("incorrect price");
+	
+	       
+// Установим статус оплачен
+$simpla->orders->update_order(intval($order->id), array('paid'=>1));
+
+// Отправим уведомление на email
+$simpla->notify->email_order_user(intval($order->id));
+$simpla->notify->email_order_admin(intval($order->id));
+
+// Спишем товары  
+$simpla->orders->close(intval($order->id));
+
+// Перенаправим пользователя на страницу заказа
+header('Location: '.$simpla->request->root_url.'/order/'.$order->url);
+
+exit();
+
+function my_exit($text)
+{
+	header('Location: '.$simpla->request->root_url.'/order/');
+	exit();
+}

payment/OKPay/settings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module>
+	<name>
+		OKPay
+	</name>
+	<settings>
+		<variable>okpay_reciever</variable>
+		<name>Получатель платежей (email, телефон или id)</name>
+	</settings>
+</module>