OpenCart 🇺🇦

$this->language->load('payment/pp_standard');

$this->data['text_testmode'] = $this->language->get('text_testmode');		

$this->data['button_confirm'] = $this->language->get('button_confirm');

$this->data['testmode'] = $this->config->get('pp_standard_test');

if (!$this->config->get('pp_standard_test')) {
	$this->data['action'] = 'https://www.paypal.com/cgi-bin/webscr';
} else {
	$this->data['action'] = 'https://www.sandbox.paypal.com/cgi-bin/webscr';
}

$this->load->model('checkout/order');

$order_info = $this->model_checkout_order->getOrder($this->session->data['order_id']);

if ($order_info) {
	$this->data['business'] = $this->config->get('pp_standard_email');
	$this->data['item_name'] = html_entity_decode($this->config->get('config_name'), ENT_QUOTES, 'UTF-8');				

	$this->data['products'] = array();

	foreach ($this->cart->getProducts() as $product) {
		$option_data = array();

		foreach ($product['option'] as $option) {
			if ($option['type'] != 'file') {
				$value = $option['option_value'];	
			} else {
				$filename = $this->encryption->decrypt($option['option_value']);

				$value = utf8_substr($filename, 0, utf8_strrpos($filename, '.'));
			}

			$option_data[] = array(
				'name'  => $option['name'],
				'value' => (utf8_strlen($value) > 20 ? utf8_substr($value, 0, 20) . '..' : $value)
			);
		}

		$this->data['products'][] = array(
			'name'     => $product['name'],
			'model'    => $product['model'],
			'price'    => $this->currency->format($product['price'], $order_info['currency_code'], false, false),
			'quantity' => $product['quantity'],
			'option'   => $option_data,
			'weight'   => $product['weight']
		);
	}	

	$this->data['discount_amount_cart'] = 0;

	$total = $this->currency->format($order_info['total'] - $this->cart->getSubTotal(), $order_info['currency_code'], false, false);

	if ($total > 0) {
		$this->data['products'][] = array(
			'name'     => $this->language->get('text_total'),
			'model'    => '',
			'price'    => $total,
			'quantity' => 1,
			'option'   => array(),
			'weight'   => 0
		);	
	} else {
		$this->data['discount_amount_cart'] -= $total;
	}

	$this->data['currency_code'] = $order_info['currency_code'];
	$this->data['first_name'] = html_entity_decode($order_info['payment_firstname'], ENT_QUOTES, 'UTF-8');	
	$this->data['last_name'] = html_entity_decode($order_info['payment_lastname'], ENT_QUOTES, 'UTF-8');	
	$this->data['address1'] = html_entity_decode($order_info['payment_address_1'], ENT_QUOTES, 'UTF-8');	
	$this->data['address2'] = html_entity_decode($order_info['payment_address_2'], ENT_QUOTES, 'UTF-8');	
	$this->data['city'] = html_entity_decode($order_info['payment_city'], ENT_QUOTES, 'UTF-8');	
	$this->data['zip'] = html_entity_decode($order_info['payment_postcode'], ENT_QUOTES, 'UTF-8');	
	$this->data['country'] = $order_info['payment_iso_code_2'];
	$this->data['email'] = $order_info['email'];
	$this->data['invoice'] = $this->session->data['order_id'] . ' - ' . html_entity_decode($order_info['payment_firstname'], ENT_QUOTES, 'UTF-8') . ' ' . html_entity_decode($order_info['payment_lastname'], ENT_QUOTES, 'UTF-8');
	$this->data['lc'] = $this->session->data['language'];
	$this->data['return'] = $this->url->link('checkout/success');
	$this->data['notify_url'] = $this->url->link('payment/pp_standard/callback', '', 'SSL');
	$this->data['cancel_return'] = $this->url->link('checkout/checkout', '', 'SSL');

	if (!$this->config->get('pp_standard_transaction')) {
		$this->data['paymentaction'] = 'authorization';
	} else {
		$this->data['paymentaction'] = 'sale';
	}

	$this->data['custom'] = $this->session->data['order_id'];

	if (file_exists(DIR_TEMPLATE . $this->config->get('config_template') . '/template/payment/pp_standard.tpl')) {
		$this->template = $this->config->get('config_template') . '/template/payment/pp_standard.tpl';
	} else {
		$this->template = 'default/template/payment/pp_standard.tpl';
	}

	$this->render();
}

if (isset($this->request->post['custom'])) {
	$order_id = $this->request->post['custom'];
} else {
	$order_id = 0;
}		

$this->load->model('checkout/order');

$order_info = $this->model_checkout_order->getOrder($order_id);

if ($order_info) {
	$request = 'cmd=_notify-validate';

	foreach ($this->request->post as $key => $value) {
		$request .= '&' . $key . '=' . urlencode(html_entity_decode($value, ENT_QUOTES, 'UTF-8'));
	}

	if (!$this->config->get('pp_standard_test')) {
		$curl = curl_init('https://www.paypal.com/cgi-bin/webscr');
	} else {
		$curl = curl_init('https://www.sandbox.paypal.com/cgi-bin/webscr');
	}

	curl_setopt($curl, CURLOPT_POST, true);
	curl_setopt($curl, CURLOPT_POSTFIELDS, $request);
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($curl, CURLOPT_HEADER, false);
	curl_setopt($curl, CURLOPT_TIMEOUT, 30);
	curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

	$response = curl_exec($curl);

	if (!$response) {
		$this->log->write('PP_STANDARD :: CURL failed ' . curl_error($curl) . '(' . curl_errno($curl) . ')');
	}

	if ($this->config->get('pp_standard_debug')) {
		$this->log->write('PP_STANDARD :: IPN REQUEST: ' . $request);
		$this->log->write('PP_STANDARD :: IPN RESPONSE: ' . $response);
	}

	if ((strcmp($response, 'VERIFIED') == 0 || strcmp($response, 'UNVERIFIED') == 0) && isset($this->request->post['payment_status'])) {
		$order_status_id = $this->config->get('config_order_status_id');

		switch($this->request->post['payment_status']) {
			case 'Canceled_Reversal':
				$order_status_id = $this->config->get('pp_standard_canceled_reversal_status_id');
				break;
			case 'Completed':
				if ((strtolower($this->request->post['receiver_email']) == strtolower($this->config->get('pp_standard_email'))) && ((float)$this->request->post['mc_gross'] == $this->currency->format($order_info['total'], $order_info['currency_code'], $order_info['currency_value'], false))) {
					$order_status_id = $this->config->get('pp_standard_completed_status_id');
				} else {
					$this->log->write('PP_STANDARD :: RECEIVER EMAIL MISMATCH! ' . strtolower($this->request->post['receiver_email']));
				}
				break;
			case 'Denied':
				$order_status_id = $this->config->get('pp_standard_denied_status_id');
				break;
			case 'Expired':
				$order_status_id = $this->config->get('pp_standard_expired_status_id');
				break;
			case 'Failed':
				$order_status_id = $this->config->get('pp_standard_failed_status_id');
				break;
			case 'Pending':
				$order_status_id = $this->config->get('pp_standard_pending_status_id');
				break;
			case 'Processed':
				$order_status_id = $this->config->get('pp_standard_processed_status_id');
				break;
			case 'Refunded':
				$order_status_id = $this->config->get('pp_standard_refunded_status_id');
				break;
			case 'Reversed':
				$order_status_id = $this->config->get('pp_standard_reversed_status_id');
				break;	 
			case 'Voided':
				$order_status_id = $this->config->get('pp_standard_voided_status_id');
				break;								
		}

		if (!$order_info['order_status_id']) {
			$this->model_checkout_order->confirm($order_id, $order_status_id);
		} else {
			$this->model_checkout_order->update($order_id, $order_status_id);
		}
	} else {
		$this->model_checkout_order->confirm($order_id, $this->config->get('config_order_status_id'));
	}

	curl_close($curl);
}