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<?php
use Joomla\CMS\Language\Multilanguage;
use Joomla\CMS\Factory;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Table\Table;
/**
* @version 4.3
* @package Joomla
* @subpackage Joom Donation
* @author Tuan Pham Ngoc
* @copyright Copyright (C) 2009 - 2023 Ossolution Team
* @license GNU/GPL, see LICENSE.php
*/
defined('_JEXEC') or die;
class os_paypal extends OSFPayment
{
/**
* Constructor functions, init some parameter
*
* @param JRegistry $params
* @param array $config
*/
public function __construct($params, $config = array())
{
parent::__construct($params, $config);
$this->mode = $params->get('paypal_mode');
if ($this->mode)
{
$this->url = 'https://www.paypal.com/cgi-bin/webscr';
}
else
{
$this->url = 'https://www.sandbox.paypal.com/cgi-bin/webscr';
}
$this->setParameter('business', $params->get('paypal_id'));
$this->setParameter('rm', 2);
$payment_type = $params->get('payment_type', 0);
$this->setParameter('cmd', '_donations');
$this->setParameter('no_shipping', 1);
$this->setParameter('no_note', 1);
$locale = $params->get('paypal_locale','');
if ($locale == '')
{
if (Multilanguage::isEnabled())
{
$locale = Factory::getLanguage()->getTag();
$locale = str_replace("-","_",$locale);
}
else
{
$locale = 'en_US';
}
}
$this->setParameter('lc', $locale);
$this->setParameter('charset', 'utf-8');
}
/**
* Check to see whether this payment gateway support recurring payment
*
*/
public function getEnableRecurring()
{
return 1;
}
/**
* Process Payment
*
* @param object $row
* @param array $data
*/
public function processPayment($row, $data)
{
$db = Factory::getDbo();
$Itemid = Factory::getApplication()->input->getInt('Itemid', 0);
$siteUrl = Uri::base();
$tag = Factory::getLanguage()->getTag();
$query = $db->getQuery(true);
$query->select('`sef`')
->from('#__languages')
->where('published = 1')
->where('lang_code=' . $db->quote($tag));
$db->setQuery($query, 0, 1);
$langLink = '&lang=' . $db->loadResult();
// Use Campaign PayPal account if it is setup in the campaign
if ($row->campaign_id)
{
$query = $db->getQuery(true);
$query->select('paypal_id')
->from('#__jd_campaigns')
->where('id=' . $row->campaign_id);
$db->setQuery($query);
if ($paypalId = $db->loadResult())
{
$this->setParameter('business', $paypalId);
}
}
//checking currency
$availableCurrenciesArr = array('AUD', 'CAD', 'EUR', 'GBP', 'JPY', 'USD', 'NZD', 'CHF', 'HKD', 'SGD', 'SEK', 'DKK', 'PLN', 'NOK', 'HUF', 'CZK', 'ILS', 'MXN', 'BRL', 'MYR', 'PHP', 'TWD', 'THB', 'TRY', 'RUB');
if (!in_array($data['currency'], $availableCurrenciesArr))
{
//convert to USD
//$exchange = DonationHelper::get_conversion($data['currency'], 'USD');
//$data['gateway_amount'] = $data['gateway_amount']*$exchange;
//$data['currency'] = 'USD';
//store into database
//$db->setQuery("Update #__jd_donors set currency_code = '".$data['currency']."',amount_converted = '".$data['gateway_amount']."' where id = '$row->id'");
//$db->execute();
}else{
//$db->setQuery("Update #__jd_donors set currency_code = '".$data['currency']."',amount_converted = '".$data['gateway_amount']."' where id = '$row->id'");
//$db->execute();
}
if ($row->state)
{
$state = DonationHelper::getStateCode($row->country, $row->state);
}
else
{
$state = '';
}
$this->setParameter('currency_code', $data['currency']);
$this->setParameter('item_name', $data['item_name']);
$this->setParameter('amount', $data['gateway_amount']);
$this->setParameter('custom', $row->id);
$this->setParameter('return', Uri::getInstance()->toString(array('scheme', 'user', 'pass', 'host')) . Route::_(DonationHelperRoute::getDonationCompleteRoute($row->id, $row->campaign_id, $Itemid), false));
$this->setParameter('cancel_return', $siteUrl . 'index.php?option=com_jdonation&view=cancel' . ($row->campaign_id > 0 ? '&campaign_id=' . $row->campaign_id : '') . '&Itemid=' . $Itemid);
$this->setParameter('notify_url', $siteUrl . 'index.php?option=com_jdonation&task=payment_confirm&payment_method=os_paypal'.$langLink);
$this->setParameter('address1', $row->address);
$this->setParameter('address2', $row->address2);
$this->setParameter('city', $row->city);
$this->setParameter('country', $data['country']);
$this->setParameter('first_name', $row->first_name);
$this->setParameter('last_name', $row->last_name);
$this->setParameter('state', $state);
$this->setParameter('zip', $row->zip);
$this->setParameter('email', $row->email);
//$this->setParameter('campaign_id',$row->campaign_id);
$this->setParameter('language',$row->language);
$this->renderRedirectForm();
}
/**
* Process recurring payment
*
* @param object $row
* @param array $data
*/
public function processRecurringPayment($row, $data)
{
$Itemid = Factory::getApplication()->input->getInt('Itemid', 0);
$siteUrl = Uri::base();
// Use Campaign PayPal account if it is setup in the campaign
if ($row->campaign_id)
{
$db = Factory::getDbo();
$query = $db->getQuery(true);
$query->select('paypal_id')
->from('#__jd_campaigns')
->where('id=' . $row->campaign_id);
$db->setQuery($query);
if ($paypalId = $db->loadResult())
{
$this->setParameter('business', $paypalId);
}
}
$this->setParameter('item_name', $data['item_name']);
$this->setParameter('currency_code', $data['currency']);
$this->setParameter('custom', $row->id);
$this->setParameter('return', Uri::getInstance()->toString(array('scheme', 'user', 'pass', 'host')) . Route::_(DonationHelperRoute::getDonationCompleteRoute($row->id, $row->campaign_id, $Itemid), false));
$this->setParameter('cancel_return', $siteUrl . 'index.php?option=com_jdonation&view=cancel' . ($row->campaign_id > 0 ? '&campaign_id=' . $row->campaign_id : '') . '&Itemid=' . $Itemid);
$this->setParameter('notify_url', $siteUrl . 'index.php?option=com_jdonation&task=recurring_donation_confirm&payment_method=os_paypal');
$this->setParameter('cmd', '_xclick-subscriptions');
$this->setParameter('src', 1);
$this->setParameter('sra', 1);
$this->setParameter('a3', round($data['gateway_amount'], 2));
$this->setParameter('address1', $row->address);
$this->setParameter('address2', $row->address2);
$this->setParameter('city', $row->city);
$this->setParameter('email', $row->email);
$this->setParameter('country', $data['country']);
$this->setParameter('first_name', $row->first_name);
$this->setParameter('last_name', $row->last_name);
$this->setParameter('state', $row->state);
$this->setParameter('zip', $row->zip);
switch ($row->r_frequency)
{
case 'd':
$p3 = 1;
$t3 = 'D';
break;
case 'w' :
$p3 = 1;
$t3 = 'W';
break;
case 'b' :
$p3 = 2;
$t3 = 'W';
break;
case 'm' :
$p3 = 1;
$t3 = 'M';
break;
case 'q' :
$p3 = 3;
$t3 = 'M';
break;
case 's' :
$p3 = 6;
$t3 = 'M';
break;
case 'a' :
$p3 = 1;
$t3 = 'Y';
break;
}
$this->setParameter('p3', $p3);
$this->setParameter('t3', $t3);
$this->setParameter('lc', 'US');
if ($row->r_times > 1)
{
$this->setParameter('srt', $row->r_times);
}
$this->renderRedirectForm();
}
/**
* Verify payment
*
* @return bool
*/
public function verifyPayment()
{
$db = Factory::getDbo();
$ret = $this->validate();
if ($ret)
{
$id = $this->notificationData['custom'];
$transactionId = $this->notificationData['txn_id'];
$amount = $this->notificationData['mc_gross'];
$currency = $this->notificationData['mc_currency'];
$paymentFee = $this->notificationData['mc_fee'];
$receiverEmail = $this->notificationData['receiver_email'];
$receiverId = $this->notificationData['receiver_id'];
if ($amount < 0)
{
return false;
}
$row = Table::getInstance('jdonation', 'Table');
$row->load($id);
if (!$row->id)
{
return false;
}
/*
$paypalId = $params->get('paypal_id');
if ($row->campaign_id)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('paypal_id')
->from('#__jd_campaigns')
->where('id=' . $row->campaign_id);
$db->setQuery($query);
$campaign_paypalId = $db->loadResult();
if($campaign_paypalId != ""){
$paypalId = $campaign_paypalId;
}
}
if ($receiverEmail != $payPalId && $receiverEmail != $receiverId)
{
return false;
}
*/
//verify amount and currency
$org_currency = $row->currency_code;
$amount_converted = $row->amount;
if((strtoupper($currency) == "") || (strtoupper($currency) != strtoupper($org_currency))){
return false;
}
if(floatval($amount) < $amount_converted){
return false;
}
if ($row->published == 0)
{
//$row->payment_fee = $paymentFee;
$this->onPaymentSuccess($row, $transactionId);
}
}
}
/**
* Verify recurring payment
*
*/
public function verifyRecurringPayment()
{
$ret = $this->validate();
if ($ret)
{
$id = $this->notificationData['custom'];
$transactionId = $this->notificationData['txn_id'];
$amount = $this->notificationData['mc_gross'];
$paymentFee = $this->notificationData['mc_fee'];
$txnType = $this->notificationData['txn_type'];
$subscrId = $this->notificationData['subscr_id'];
if ($amount < 0)
{
return false;
}
$row = Table::getInstance('jdonation', 'Table');
switch ($txnType)
{
case 'subscr_signup' :
$row->load($id);
if (!$row->id)
{
return false;
}
if ($row->published == 0)
{
$row->subscr_id = $subscrId;
if($transactionId == "")
{
$transactionId = $subscrId;
}
$this->onPaymentSuccess($row, $transactionId);
}
break;
case 'subscr_payment' :
$row->load($id);
if (!$row->id)
{
return false;
}
$row->payment_made = $row->payment_made + 1;
$row->amount = $amount;
//$row->payment_fee = $paymentFee;
$row->store();
//Create a new one time donation record and send emails when a recurring payment happens
if ($row->payment_made > 1)
{
$row = clone $row;
$row->id = 0;
$row->donation_type = 'I';
$row->created_date = gmdate('Y-m-d H:i:s');
$row->invoice_number = (int) $row->invoice_number + 1;
$this->onPaymentSuccess($row, $transactionId);
}
break;
case 'subscr_cancel':
DonationHelper::cancelRecurringDonation($id);
break;
}
}
}
/**
* Get list of supported currencies
*
* @return array
*/
public function getSupportedCurrencies()
{
return array(
'AUD',
'BRL',
'CAD',
'CZK',
'DKK',
'EUR',
'HKD',
'HUF',
'ILS',
'JPY',
'MYR',
'MXN',
'NOK',
'NZD',
'PHP',
'PLN',
'GBP',
'RUB',
'SGD',
'SEK',
'CHF',
'TWD',
'THB',
'TRY',
'USD'
);
}
/**
* Validate the post data from paypal to our server
*
* @return string
*/
protected function validate()
{
if (function_exists('curl_init'))
{
return $this->validateIPN();
}
$this->notificationData = $_POST;
$hostname = $this->mode ? 'www.paypal.com' : 'www.sandbox.paypal.com';
$url = 'ssl://' . $hostname;
$port = 443;
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value)
{
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
$header = '';
$header .= "POST /cgi-bin/webscr HTTP/1.1\r\n";
$header .= "Host: $hostname:$port\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n";
$header .= "User-Agent: Events Booking\r\n";
$header .= "Connection: Close\r\n\r\n";
$errNum = '';
$errStr = '';
$response = '';
$fp = fsockopen($url, $port, $errNum, $errStr, 30);
if (!$fp)
{
$response = 'Could not open SSL connection to ' . $hostname . ':' . $port;
$this->logGatewayData($response);
return false;
}
fputs($fp, $header . $req);
while (!feof($fp))
{
$response .= fgets($fp, 1024);
}
fclose($fp);
$this->logGatewayData($response);
if (!$this->mode || stristr($response, "VERIFIED"))
{
return true;
}
return false;
}
/**
* Validate PayPal IPN using PayPal library
*
* @return bool
*/
protected function validateIPN()
{
JLoader::register('PaypalIPN', JPATH_ROOT . '/components/com_jdonation/payments/paypal/PayPalIPN.php');
$ipn = new PaypalIPN;
// Use sandbox URL if test mode is configured
if (!$this->mode)
{
$ipn->useSandbox();
}
// Disable use custom certs
$ipn->usePHPCerts();
$this->notificationData = $_POST;
try
{
$valid = $ipn->verifyIPN();
$this->logGatewayData($ipn->getResponse());
if (!$this->mode || $valid)
{
return true;
}
return false;
}
catch (Exception $e)
{
$this->logGatewayData($e->getMessage());
return false;
}
}
/**
* Cancel recurring subscription
*
* @param $row
*
* @return bool
* @throws Exception
*
* @since 1.0
*/
public function cancelDonation($row)
{
list($apiUrl, $apiUser, $apiPassword, $apiSignature) = $this->getNvpApiParameters();
if (!$apiUser || !$apiPassword || !$apiSignature)
{
Factory::getApplication()->enqueueMessage('Cancel Recurring Subscription is not supported for the payment method you are using', 'error');
return false;
}
$curl = curl_init();
curl_setopt($curl, CURLOPT_VERBOSE, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_URL, $apiUrl);
curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query([
'USER' => $apiUser,
'PWD' => $apiPassword,
'SIGNATURE' => $apiSignature,
'VERSION' => '108',
'METHOD' => 'ManageRecurringPaymentsProfileStatus',
'PROFILEID' => $row->subscr_id,
'ACTION' => 'Cancel',
]));
$response = curl_exec($curl);
curl_close($curl);
$nvp = $this->deformatNVP($response);
if ($nvp['ACK'] == 'Success')
{
return true;
}
else
{
Factory::getApplication()->enqueueMessage($nvp['L_LONGMESSAGE0'], 'error');
return false;
}
}
/**
* Get NvpApi Parameters
*
* @return array
*/
private function getNvpApiParameters()
{
if ($this->mode)
{
$apiUrl = 'https://api-3t.paypal.com/nvp';
$apiUser = $this->params->get('paypal_api_user');
$apiPassword = $this->params->get('paypal_api_password');
$apiSignature = $this->params->get('paypal_api_signature');
}
else
{
$apiUrl = 'https://api-3t.sandbox.paypal.com/nvp';
$apiUser = $this->params->get('paypal_api_user_sandbox');
$apiPassword = $this->params->get('paypal_api_password_sandbox');
$apiSignature = $this->params->get('paypal_api_signature_sandbox');
}
return [$apiUrl, $apiUser, $apiPassword, $apiSignature];
}
/**
* Extract response from PayPal into array
*
* @param $response
*
* @return array
*/
private function deformatNVP($response)
{
$nvp = [];
parse_str(urldecode($response), $nvp);
return $nvp;
}
/**
* Method to check if API Credentials is entered into the payment plugin parameters
*/
private function isApiCredentialsEntered()
{
list($apiUrl, $apiUser, $apiPassword, $apiSignature) = $this->getNvpApiParameters();
return $apiUser && $apiPassword && $apiSignature;
}
/**
* Method to check if cancel recurring subscription is supported
*
* @return bool
*/
public function supportCancelRecurringSubscription()
{
return $this->isApiCredentialsEntered();
}
}