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<?php

* 2007-2013 PrestaShop

* NOTICE OF LICENSE

* This source file is subject to the Academic Free License (AFL 3.0)

* that is bundled with this package in the file LICENSE.txt.

* It is also available through the world-wide-web at this URL:

* http://opensource.org/licenses/afl-3.0.php

* If you did not receive a copy of the license and are unable to

* obtain it through the world-wide-web, please send an email

* to license@prestashop.com so we can send you a copy immediately.

* DISCLAIMER

* Do not edit or add to this file if you wish to upgrade PrestaShop to newer

* versions in the future. If you wish to customize PrestaShop for your

* needs please refer to http://www.prestashop.com for more information.

* @author PrestaShop SA <contact@prestashop.com>

* @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)

* International Registered Trademark & Property of PrestaShop SA

include_once(_PS_MODULE_DIR_.'paypal/paypal.php');

include_once(_PS_MODULE_DIR_.'paypal/api/paypal_lib.php');

//****** Dev only

error_reporting(E_ALL);

ini_set('display_errors', '1');

include_once('Logging.php');

// Logging class initialization

$logger = new Logging();

$logger->lfile('mylog.txt');

class PaypalExpressCheckout extends Paypal

{

public $logs = array();

public $method_version = '84';

public $method;

/** @var currency Currency used for the payment process **/

public $currency;

/** @var decimals Used to set prices precision **/

public $decimals;

/** @var result Contains the last request result **/

public $result;

/** @var token Contains the last token **/

public $token;

// Depending of the type set, id_cart or id_product will be set

public $id_cart;

// Depending of the type set, id_cart or id_product will be set

public $id_product;

public $id_p_attr;

public $quantity;

public $payer_id;

public $available_type = array('cart', 'product', 'payment_cart');

public $total_different_product;

public $product_list = array();

// Used to know if user can validated his payment after shipping / address selection

public $ready = false;

// Take for now cart or product value

public $type = false;

static public $COOKIE_NAME = 'express_checkout';

public $cookie_key = array(

'token', 'id_product', 'id_p_attr',

'quantity', 'type', 'total_different_product',

'secure_key', 'ready', 'payer_id'

);

public function __construct($type = false)

{

parent::__construct();

// If type is sent, the cookie has to be delete

if ($type)

{

unset($this->context->cookie->{self::$COOKIE_NAME});

$this->setExpressCheckoutType($type);

}

// Store back the PayPal data if present under the cookie

if (isset($this->context->cookie->{self::$COOKIE_NAME}))

{

$paypal = unserialize($this->context->cookie->{self::$COOKIE_NAME});

foreach ($this->cookie_key as $key)

$this->{$key} = $paypal[$key];

}

$this->currency = new Currency((int)$this->context->cart->id_currency);

if (!Validate::isLoadedObject($this->currency))

$this->_errors[] = $this->l('Not a valid currency');

if (count($this->_errors))

return false;

$currency_decimals = is_array($this->currency) ? (int)$this->currency['decimals'] : (int)$this->currency->decimals;

$this->decimals = $currency_decimals * _PS_PRICE_DISPLAY_PRECISION_;

}

// Will build the product_list depending of the type

private function initParameters()

{

if (!$this->context->cart || !$this->context->cart->id)

return false;

$cart_currency = new Currency((int)$this->context->cart->id_currency);

$currency_module = $this->getCurrency((int)$this->context->cart->id_currency);

if ($cart_currency !== $currency_module)

{

$this->context->cart->id_currency = $currency_module->id;

$this->context->cart->update();

}

$this->context->currency = $currency_module;

$this->product_list = $this->context->cart->getProducts();

return (bool)count($this->product_list);

}

public function setExpressCheckout()

{

$this->method = 'SetExpressCheckout';

$this->setCancelUrl($fields);

// Only this call need to get the value from the $_GET / $_POST array

if (!$this->initParameters(true) || !$fields['CANCELURL'])

return false;

// Set payment detail (reference)

$this->_setPaymentDetails($fields);

$fields['SOLUTIONTYPE'] = 'Sole';

$fields['LANDINGPAGE'] = 'Login';

// Seller informations

$fields['USER'] = Configuration::get('PAYPAL_API_USER');

$fields['PWD'] = Configuration::get('PAYPAL_API_PASSWORD');

$fields['SIGNATURE'] = Configuration::get('PAYPAL_API_SIGNATURE');

$this->callAPI($fields);

$this->_storeToken();

}

public function setCancelUrl(&$fields)

{

$parsed_data = parse_url(Tools::getValue('current_shop_url'));

$parsed_data['scheme'] .= '://';

$parsed_data['path'] .= '?';

$parsed_data['query'] = '&paypal_ec_canceled=1';

$fields['CANCELURL'] = implode($parsed_data);

}

public function getExpressCheckout()

{

$this->method = 'GetExpressCheckoutDetails';

$fields['TOKEN'] = $this->token;

$this->initParameters();

$this->callAPI($fields);

// The same token of SetExpressCheckout

$this->_storeToken();

}

public function doExpressCheckout()

{

$this->method = 'DoExpressCheckoutPayment';

$fields['TOKEN'] = $this->token;

$fields['PAYERID'] = $this->payer_id;

if (count($this->product_list) <= 0)

$this->initParameters();

// Set payment detail (reference)

$this->_setPaymentDetails($fields);

$this->callAPI($fields);

$this->result += $fields;

}

private function callAPI($fields)

{

$this->logs = array();

$paypal_lib = new PaypalLib();

$this->result = $paypal_lib->makeCall($this->getAPIURL(), $this->getAPIScript(), $this->method, $fields, $this->method_version);

$this->logs = array_merge($this->logs, $paypal_lib->getLogs());

$this->_storeToken();

}

private function _setPaymentDetails(&$fields)

{

// Required field

$fields['RETURNURL'] = PayPal::getShopDomainSsl(true, true)._MODULE_DIR_.$this->name.'/express_checkout/payment.php';

$fields['REQCONFIRMSHIPPING'] = '0';

$fields['NOSHIPPING'] = '1';

$fields['BUTTONSOURCE'] = $this->getTrackingCode();

// Products

$taxes = $total = 0;

$index = -1;

global $logger;

// Set cart products list

$this->setProductsList($fields, $index, $total, $taxes);

$logger->lwrite( 'Total pre-setProductsList = '.$total );

$this->setProductsList($fields, $index, $total, $taxes);

$logger->lwrite( 'Total pre-setDiscountsList = '.$total );

$this->setDiscountsList($fields, $index, $total, $taxes);

$logger->lwrite( 'Total pre-setGiftWrapping = '.$total );

$this->setGiftWrapping($fields, $index, $total);

// Payment values

$logger->lwrite( 'Total pre-setPaymentValues = '.$total );

$this->setPaymentValues($fields, $index, $total, $taxes);

$id_address = (int)$this->context->cart->id_address_delivery;

if (($id_address == 0) && ($this->context->customer))

$id_address = Address::getFirstCustomerAddressId($this->context->customer->id);

if ($id_address && method_exists($this->context->cart, 'isVirtualCart') && !$this->context->cart->isVirtualCart())

if ($id_address && method_exists($this->context->cart, 'isVirtualCart') && !$this->context->cart->isVirtualCart()) {

$logger->lwrite( 'Total pre-setShippingAddress = '.$total );

$this->setShippingAddress($fields, $id_address);

}

else

$fields['NOSHIPPING'] = '0';

foreach ($fields as &$field)

if (is_numeric($field))

$field = str_replace(',', '.', $field);

}

private function setShippingAddress(&$fields, $id_address)

{

$address = new Address($id_address);

$fields['ADDROVERRIDE'] = '1';

$fields['EMAIL'] = $this->context->customer->email;

$fields['PAYMENTREQUEST_0_SHIPTONAME'] = $address->firstname.' '.$address->lastname;

$fields['PAYMENTREQUEST_0_SHIPTOPHONENUM'] = (empty($address->phone)) ? $address->phone_mobile : $address->phone;

$fields['PAYMENTREQUEST_0_SHIPTOSTREET'] = $address->address1;

$fields['PAYMENTREQUEST_0_SHIPTOSTREET2'] = $address->address2;

$fields['PAYMENTREQUEST_0_SHIPTOCITY'] = $address->city;

if ($address->id_state)

{

$state = new State((int)$address->id_state);

$fields['PAYMENTREQUEST_0_SHIPTOSTATE'] = $state->iso_code;

}

$country = new Country((int)$address->id_country);

$fields['PAYMENTREQUEST_0_SHIPTOCOUNTRYCODE'] = $country->iso_code;

$fields['PAYMENTREQUEST_0_SHIPTOZIP'] = $address->postcode;

}

private function setProductsList(&$fields, &$index, &$total)

{

foreach ($this->product_list as $product)

{

$fields['L_PAYMENTREQUEST_0_NUMBER'.++$index] = (int)$product['id_product'];

$fields['L_PAYMENTREQUEST_0_NAME'.$index] = $product['name'];

$fields['L_PAYMENTREQUEST_0_DESC'.$index] = substr(strip_tags($product['description_short']), 0, 120).'...';

$fields['L_PAYMENTREQUEST_0_AMT'.$index] = Tools::ps_round($product['price_wt'], $this->decimals);

$fields['L_PAYMENTREQUEST_0_AMT'.$index] = Tools::ps_round($product['price'], $this->decimals);

$fields['L_PAYMENTREQUEST_0_QTY'.$index] = $product['quantity'];

$product_tax = Tools::ps_round($product['price_wt'] - $product['price'], $this->decimals);

$total = $total + ($fields['L_PAYMENTREQUEST_0_AMT'.$index] * $product['quantity']);

$total = $total + (($fields['L_PAYMENTREQUEST_0_AMT'.$index] /*+ $product_tax*/)* $product['quantity']);

}

private function setDiscountsList(&$fields, &$index, &$total)

{

$discounts = (_PS_VERSION_ < '1.5') ? $this->context->cart->getDiscounts() : $this->context->cart->getCartRules();

if (count($discounts) > 0)

foreach ($discounts as $discount)

{

$fields['L_PAYMENTREQUEST_0_NUMBER'.++$index] = $discount['id_discount'];

$fields['L_PAYMENTREQUEST_0_NAME'.$index] = $discount['name'];

if (isset($discount['description']) && !empty($discount['description']))

$fields['L_PAYMENTREQUEST_0_DESC'.$index] = substr(strip_tags($discount['description']), 0, 120).'...';

/* It is a discount so we store a negative value */

$fields['L_PAYMENTREQUEST_0_AMT'.$index] = -1 * Tools::ps_round($discount['value_real'], $this->decimals);

$fields['L_PAYMENTREQUEST_0_QTY'.$index] = 1;

$total = Tools::ps_round($total + $fields['L_PAYMENTREQUEST_0_AMT'.$index], $this->decimals);

}

private function setGiftWrapping(&$fields, &$index, &$total)

{

if ($this->context->cart->gift == 1)

{

$gift_wrapping_price = $this->getGiftWrappingPrice();

$fields['L_PAYMENTREQUEST_0_NAME'.++$index] = $this->l('Gift wrapping');

$fields['L_PAYMENTREQUEST_0_AMT'.$index] = Tools::ps_round($gift_wrapping_price, $this->decimals);

$fields['L_PAYMENTREQUEST_0_QTY'.$index] = 1;

$total = Tools::ps_round($total + $gift_wrapping_price, $this->decimals);

}

private function setPaymentValues(&$fields, &$index, &$total, &$taxes)

{

if (_PS_VERSION_ < '1.5')

$shipping_cost_wt = $this->context->cart->getOrderShippingCost();

else

$shipping_cost_wt = $this->context->cart->getTotalShippingCost();

$shipping_cost_wt = $this->context->cart->getTotalShippingCost(null, false);

if ((bool)Configuration::get('PAYPAL_CAPTURE'))

$fields['PAYMENTREQUEST_0_PAYMENTACTION'] = 'Authorization';

else

$fields['PAYMENTREQUEST_0_PAYMENTACTION'] = 'Sale';

$currency = new Currency((int)$this->context->cart->id_currency);

$fields['PAYMENTREQUEST_0_CURRENCYCODE'] = $currency->iso_code;

/**

* If the total amount is lower than 1 we put the shipping cost as an item

* so the payment could be valid.

if ($total <= 1)

{

$carrier = new Carrier($this->context->cart->id_carrier);

$fields['L_PAYMENTREQUEST_0_NUMBER'.++$index] = $carrier->id_reference;

$fields['L_PAYMENTREQUEST_0_NAME'.$index] = $carrier->name;

$fields['L_PAYMENTREQUEST_0_AMT'.$index] = Tools::ps_round($shipping_cost_wt, $this->decimals);

$fields['L_PAYMENTREQUEST_0_QTY'.$index] = 1;

$fields['PAYMENTREQUEST_0_ITEMAMT'] = Tools::ps_round($total, $this->decimals) + Tools::ps_round($shipping_cost_wt, $this->decimals);

$fields['PAYMENTREQUEST_0_AMT'] = $total + Tools::ps_round($shipping_cost_wt, $this->decimals);

}

else

{

$fields['PAYMENTREQUEST_0_SHIPPINGAMT'] = Tools::ps_round($shipping_cost_wt, $this->decimals);

$fields['PAYMENTREQUEST_0_ITEMAMT'] = Tools::ps_round($total, $this->decimals);

$fields['PAYMENTREQUEST_0_AMT'] = $total + $fields['PAYMENTREQUEST_0_SHIPPINGAMT'];

$fields['PAYMENTREQUEST_0_TAXAMT'] = Tools::ps_round($this->context->cart->getOrderTotal() - $this->context->cart->getOrderTotal(false), $this->decimals);

$fields['PAYMENTREQUEST_0_AMT'] = Tools::ps_round($total + $fields['PAYMENTREQUEST_0_SHIPPINGAMT'] + $fields['PAYMENTREQUEST_0_TAXAMT'], $this->decimals);

}

global $logger;

//require_once('Logger.php');

$logger->lwrite( 'setPaymentValues:PAYMENTREQUEST_0_AMT = '.$fields['PAYMENTREQUEST_0_AMT'] );

$logger->lwrite( 'setPaymentValues:PAYMENTREQUEST_0_ITEMAMT = '.$fields['PAYMENTREQUEST_0_ITEMAMT'] );

$logger->lwrite( 'setPaymentValues:PAYMENTREQUEST_0_TAXAMT = '.$fields['PAYMENTREQUEST_0_TAXAMT'] );

$logger->lwrite( 'setPaymentValues:PAYMENTREQUEST_0_SHIPPINGAMT = '.$fields['PAYMENTREQUEST_0_SHIPPINGAMT'] );

$logger->lwrite( var_export($fields, true) );

}

public function rightPaymentProcess()

{

$total = $this->getTotalPaid();

// float problem with php, have to use the string cast.

if ((isset($this->result['AMT']) && ((string)$this->result['AMT'] != (string)$total)) ||

(isset($this->result['PAYMENTINFO_0_AMT']) && ((string)$this->result['PAYMENTINFO_0_AMT'] != (string)$total)))

return false;

return true;

}

/**

* @return mixed

public function getTotalPaid()

{

$total = 0.00;

foreach ($this->product_list as $product)

{

$price = Tools::ps_round($product['price_wt'], $this->decimals);

$quantity = Tools::ps_round($product['quantity'], $this->decimals);

$total = Tools::ps_round($total + ($price * $quantity), $this->decimals);

}

if ($this->context->cart->gift == 1)

$total = Tools::ps_round($total + $this->getGiftWrappingPrice(), $this->decimals);

if (_PS_VERSION_ < '1.5')

{

$discounts = $this->context->cart->getDiscounts();

$shipping_cost = $this->context->cart->getOrderShippingCost();

}

else

{

$discounts = $this->context->cart->getCartRules();

$shipping_cost = $this->context->cart->getTotalShippingCost();

}

if (count($discounts) > 0)

foreach ($discounts as $product)

{

$price = -1 * Tools::ps_round($product['value_real'], $this->decimals);

$total = Tools::ps_round($total + $price, $this->decimals);

}

return Tools::ps_round($shipping_cost, $this->decimals) + $total;

}

private function _storeToken()

{

if (is_array($this->result) && isset($this->result['TOKEN']))

$this->token = (string)$this->result['TOKEN'];

}

// Store data for the next reloading page

private function _storeCookieInfo()

{

$tab = array();

foreach ($this->cookie_key as $key)

$tab[$key] = $this->{$key};

$this->context->cookie->{self::$COOKIE_NAME} = serialize($tab);

}

public function hasSucceedRequest()

{

if (is_array($this->result))

foreach(array('ACK', 'PAYMENTINFO_0_ACK') as $key)

if (isset($this->result[$key]) && strtoupper($this->result[$key]) == 'SUCCESS')

return true;

return false;

}

private function getSecureKey()

{

if (!count($this->product_list))

$this->initParameters();

$key = array();

foreach($this->product_list as $product)

{

$id_product = $product['id_product'];

$id_product_attribute = $product['id_product_attribute'];

$quantity = $product['quantity'];

$key[] = $id_product.$id_product_attribute.$quantity._COOKIE_KEY_;

}

return md5(serialize($key));

}

public function isProductsListStillRight()

{

return $this->secure_key == $this->getSecureKey();

}

public function setExpressCheckoutType($type)

{

if (in_array($type, $this->available_type))

{

$this->type = $type;

return true;

}

return false;

}

public function redirectToAPI()

{

$this->secure_key = $this->getSecureKey();

$this->_storeCookieInfo();

if ($this->useMobile())

$url = '/cgi-bin/webscr?cmd=_express-checkout-mobile';

else

$url = '/websc&cmd=_express-checkout';

header('Location: https://'.$this->getPayPalURL().$url.'&token='.urldecode($this->token));

exit(0);

}

public function redirectToCheckout($customer, $redirect = false)

{

$this->ready = true;

$this->_storeCookieInfo();

$this->context->cookie->id_customer = (int)$customer->id;

$this->context->cookie->customer_lastname = $customer->lastname;

$this->context->cookie->customer_firstname = $customer->firstname;

$this->context->cookie->passwd = $customer->passwd;

$this->context->cookie->email = $customer->email;

$this->context->cookie->is_guest = $customer->isGuest();

$this->context->cookie->logged = 1;

if (_PS_VERSION_ < '1.5')

Module::hookExec('authentication');

else

Hook::exec('authentication');

if ($redirect)

{

$link = $this->context->link->getPageLink('order.php', false, null, array('step' => '3'));

Tools::redirectLink($link);

exit(0);

}

Diff salvati

Testo originale

Apri file

<?php
/*
* 2007-2013 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/afl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2013 PrestaShop SA
*  @license    http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

include_once(_PS_MODULE_DIR_.'paypal/paypal.php');
include_once(_PS_MODULE_DIR_.'paypal/api/paypal_lib.php');

//****** Dev only
error_reporting(E_ALL);
ini_set('display_errors', '1');

class PaypalExpressCheckout extends Paypal
{
	public $logs = array();

public $method_version = '84';

public $method;

/** @var currency Currency used for the payment process **/
	public $currency;

/** @var decimals Used to set prices precision **/
	public $decimals;

/** @var result Contains the last request result **/
	public $result;

/** @var token Contains the last token **/
	public $token;

// Depending of the type set, id_cart or id_product will be set
	public $id_cart;

// Depending of the type set, id_cart or id_product will be set
	public $id_product;

public $id_p_attr;

public $quantity;

public $payer_id;

public $available_type = array('cart', 'product', 'payment_cart');

public $total_different_product;

public $product_list = array();

// Used to know if user can validated his payment after shipping / address selection
	public $ready = false;

// Take for now cart or product value
	public $type = false;

static public $COOKIE_NAME = 'express_checkout';

public $cookie_key = array(
		'token', 'id_product', 'id_p_attr',
		'quantity', 'type', 'total_different_product',
		'secure_key', 'ready', 'payer_id'
	);

public function __construct($type = false)
	{
		parent::__construct();

// If type is sent, the cookie has to be delete
		if ($type)
		{
			unset($this->context->cookie->{self::$COOKIE_NAME});
			$this->setExpressCheckoutType($type);
		}

// Store back the PayPal data if present under the cookie
		if (isset($this->context->cookie->{self::$COOKIE_NAME}))
		{
			$paypal = unserialize($this->context->cookie->{self::$COOKIE_NAME});

foreach ($this->cookie_key as $key)
				$this->{$key} = $paypal[$key];
		}

$this->currency = new Currency((int)$this->context->cart->id_currency);

if (!Validate::isLoadedObject($this->currency))
			$this->_errors[] = $this->l('Not a valid currency');

if (count($this->_errors))
			return false;

$currency_decimals = is_array($this->currency) ? (int)$this->currency['decimals'] : (int)$this->currency->decimals;
		$this->decimals = $currency_decimals * _PS_PRICE_DISPLAY_PRECISION_;
	}

// Will build the product_list depending of the type
	private function initParameters()
	{
		if (!$this->context->cart || !$this->context->cart->id)
			return false;

$cart_currency = new Currency((int)$this->context->cart->id_currency);
		$currency_module = $this->getCurrency((int)$this->context->cart->id_currency);

if ($cart_currency !== $currency_module)
		{
			$this->context->cart->id_currency = $currency_module->id;
			$this->context->cart->update();
		}

$this->context->currency = $currency_module;
		$this->product_list = $this->context->cart->getProducts();
		return (bool)count($this->product_list);
	}

public function setExpressCheckout()
	{
		$this->method = 'SetExpressCheckout';
		$this->setCancelUrl($fields);

// Only this call need to get the value from the $_GET / $_POST array
		if (!$this->initParameters(true) || !$fields['CANCELURL'])
			return false;

// Set payment detail (reference)
		$this->_setPaymentDetails($fields);
		$fields['SOLUTIONTYPE'] = 'Sole';
		$fields['LANDINGPAGE'] = 'Login';

// Seller informations
		$fields['USER'] = Configuration::get('PAYPAL_API_USER');
		$fields['PWD'] = Configuration::get('PAYPAL_API_PASSWORD');
		$fields['SIGNATURE'] = Configuration::get('PAYPAL_API_SIGNATURE');

$this->callAPI($fields);
		$this->_storeToken();
	}
	
	public function setCancelUrl(&$fields)
	{
		$parsed_data = parse_url(Tools::getValue('current_shop_url'));
		
		$parsed_data['scheme'] .= '://';
		$parsed_data['path'] .= '?';
		$parsed_data['query'] = '&paypal_ec_canceled=1';

$fields['CANCELURL'] = implode($parsed_data);
	}

public function getExpressCheckout()
	{
		$this->method = 'GetExpressCheckoutDetails';
		$fields['TOKEN'] = $this->token;

$this->initParameters();
		$this->callAPI($fields);

// The same token of SetExpressCheckout
		$this->_storeToken();
	}

public function doExpressCheckout()
	{
		$this->method = 'DoExpressCheckoutPayment';

$fields['TOKEN'] = $this->token;
		$fields['PAYERID'] = $this->payer_id;

if (count($this->product_list) <= 0)
			$this->initParameters();

// Set payment detail (reference)
		$this->_setPaymentDetails($fields);
		$this->callAPI($fields);

$this->result += $fields;
	}

private function callAPI($fields)
	{
		$this->logs = array();
		$paypal_lib = new PaypalLib();

$this->result = $paypal_lib->makeCall($this->getAPIURL(), $this->getAPIScript(), $this->method, $fields, $this->method_version);
		$this->logs = array_merge($this->logs, $paypal_lib->getLogs());

$this->_storeToken();
	}

private function _setPaymentDetails(&$fields)
	{
		// Required field
		$fields['RETURNURL'] = PayPal::getShopDomainSsl(true, true)._MODULE_DIR_.$this->name.'/express_checkout/payment.php';
		$fields['REQCONFIRMSHIPPING'] = '0';
		$fields['NOSHIPPING'] = '1';
		$fields['BUTTONSOURCE'] = $this->getTrackingCode();

// Products
		$taxes = $total = 0;
		$index = -1;

// Set cart products list
		$this->setProductsList($fields, $index, $total, $taxes);
		$this->setDiscountsList($fields, $index, $total, $taxes);
		$this->setGiftWrapping($fields, $index, $total);

// Payment values
		$this->setPaymentValues($fields, $index, $total, $taxes);

$id_address = (int)$this->context->cart->id_address_delivery;
		if (($id_address == 0) && ($this->context->customer))
			$id_address = Address::getFirstCustomerAddressId($this->context->customer->id);

if ($id_address && method_exists($this->context->cart, 'isVirtualCart') && !$this->context->cart->isVirtualCart())
			$this->setShippingAddress($fields, $id_address);
		else
			$fields['NOSHIPPING'] = '0';

foreach ($fields as &$field)
			if (is_numeric($field))
				$field = str_replace(',', '.', $field);
	}

private function setShippingAddress(&$fields, $id_address)
	{
		$address = new Address($id_address);

$fields['ADDROVERRIDE'] = '1';
		$fields['EMAIL'] = $this->context->customer->email;
		$fields['PAYMENTREQUEST_0_SHIPTONAME'] = $address->firstname.' '.$address->lastname;
		$fields['PAYMENTREQUEST_0_SHIPTOPHONENUM'] = (empty($address->phone)) ? $address->phone_mobile : $address->phone;
		$fields['PAYMENTREQUEST_0_SHIPTOSTREET'] = $address->address1;
		$fields['PAYMENTREQUEST_0_SHIPTOSTREET2'] = $address->address2;
		$fields['PAYMENTREQUEST_0_SHIPTOCITY'] = $address->city;

if ($address->id_state)
		{
			$state	= new State((int)$address->id_state);
			$fields['PAYMENTREQUEST_0_SHIPTOSTATE'] = $state->iso_code;
		}

$country	= new Country((int)$address->id_country);
		$fields['PAYMENTREQUEST_0_SHIPTOCOUNTRYCODE'] = $country->iso_code;
		$fields['PAYMENTREQUEST_0_SHIPTOZIP'] = $address->postcode;
	}

private function setProductsList(&$fields, &$index, &$total)
	{
		foreach ($this->product_list as $product)
		{
			$fields['L_PAYMENTREQUEST_0_NUMBER'.++$index] = (int)$product['id_product'];

$fields['L_PAYMENTREQUEST_0_NAME'.$index] = $product['name'];
			$fields['L_PAYMENTREQUEST_0_DESC'.$index] = substr(strip_tags($product['description_short']), 0, 120).'...';

$fields['L_PAYMENTREQUEST_0_AMT'.$index] = Tools::ps_round($product['price_wt'], $this->decimals);
			$fields['L_PAYMENTREQUEST_0_QTY'.$index] = $product['quantity'];

$total = $total + ($fields['L_PAYMENTREQUEST_0_AMT'.$index] * $product['quantity']);
		}
	}

private function setDiscountsList(&$fields, &$index, &$total)
	{
		$discounts = (_PS_VERSION_ < '1.5') ? $this->context->cart->getDiscounts() : $this->context->cart->getCartRules();

if (count($discounts) > 0)
			foreach ($discounts as $discount)
			{
				$fields['L_PAYMENTREQUEST_0_NUMBER'.++$index] = $discount['id_discount'];

$fields['L_PAYMENTREQUEST_0_NAME'.$index] = $discount['name'];
				if (isset($discount['description']) && !empty($discount['description']))
					$fields['L_PAYMENTREQUEST_0_DESC'.$index] = substr(strip_tags($discount['description']), 0, 120).'...';

/* It is a discount so we store a negative value */
				$fields['L_PAYMENTREQUEST_0_AMT'.$index] = -1 * Tools::ps_round($discount['value_real'], $this->decimals);
				$fields['L_PAYMENTREQUEST_0_QTY'.$index] = 1;

$total = Tools::ps_round($total + $fields['L_PAYMENTREQUEST_0_AMT'.$index], $this->decimals);
			}
	}

private function setGiftWrapping(&$fields, &$index, &$total)
	{
		if ($this->context->cart->gift == 1)
		{
			$gift_wrapping_price = $this->getGiftWrappingPrice();

$fields['L_PAYMENTREQUEST_0_NAME'.++$index]	= $this->l('Gift wrapping');

$fields['L_PAYMENTREQUEST_0_AMT'.$index] = Tools::ps_round($gift_wrapping_price, $this->decimals);
			$fields['L_PAYMENTREQUEST_0_QTY'.$index] = 1;

$total = Tools::ps_round($total + $gift_wrapping_price, $this->decimals);
		}
	}

private function setPaymentValues(&$fields, &$index, &$total, &$taxes)
	{
		if (_PS_VERSION_ < '1.5')
			$shipping_cost_wt = $this->context->cart->getOrderShippingCost();
		else
			$shipping_cost_wt = $this->context->cart->getTotalShippingCost();

if ((bool)Configuration::get('PAYPAL_CAPTURE'))
			$fields['PAYMENTREQUEST_0_PAYMENTACTION'] = 'Authorization';
		else
			$fields['PAYMENTREQUEST_0_PAYMENTACTION'] = 'Sale';
		
		$currency = new Currency((int)$this->context->cart->id_currency);
		$fields['PAYMENTREQUEST_0_CURRENCYCODE'] = $currency->iso_code;

/**
		 * If the total amount is lower than 1 we put the shipping cost as an item
		 * so the payment could be valid.
		 */ 
		if ($total <= 1)
		{
			$carrier = new Carrier($this->context->cart->id_carrier);
			$fields['L_PAYMENTREQUEST_0_NUMBER'.++$index] = $carrier->id_reference;
			$fields['L_PAYMENTREQUEST_0_NAME'.$index] = $carrier->name;
			$fields['L_PAYMENTREQUEST_0_AMT'.$index] = Tools::ps_round($shipping_cost_wt, $this->decimals);
			$fields['L_PAYMENTREQUEST_0_QTY'.$index] = 1;
			
			$fields['PAYMENTREQUEST_0_ITEMAMT'] = Tools::ps_round($total, $this->decimals) + Tools::ps_round($shipping_cost_wt, $this->decimals);
			$fields['PAYMENTREQUEST_0_AMT'] = $total + Tools::ps_round($shipping_cost_wt, $this->decimals);
		}
		else
		{
			$fields['PAYMENTREQUEST_0_SHIPPINGAMT'] = Tools::ps_round($shipping_cost_wt, $this->decimals);
			$fields['PAYMENTREQUEST_0_ITEMAMT'] = Tools::ps_round($total, $this->decimals);
			$fields['PAYMENTREQUEST_0_AMT'] = $total + $fields['PAYMENTREQUEST_0_SHIPPINGAMT'];
		}
	}

public function rightPaymentProcess()
	{
		$total = $this->getTotalPaid();

// float problem with php, have to use the string cast.
		if ((isset($this->result['AMT']) && ((string)$this->result['AMT'] != (string)$total)) ||
			(isset($this->result['PAYMENTINFO_0_AMT']) && ((string)$this->result['PAYMENTINFO_0_AMT'] != (string)$total)))
			return false;	
		return true;
	}

/**
	 * @return mixed
	 */
	public function getTotalPaid()
	{
		$total = 0.00;

foreach ($this->product_list as $product)
		{
			$price = Tools::ps_round($product['price_wt'], $this->decimals);
			$quantity = Tools::ps_round($product['quantity'], $this->decimals);
			$total = Tools::ps_round($total + ($price * $quantity), $this->decimals);
		}

if ($this->context->cart->gift == 1)
			$total = Tools::ps_round($total + $this->getGiftWrappingPrice(), $this->decimals);
		
		if (_PS_VERSION_ < '1.5')
		{
			$discounts = $this->context->cart->getDiscounts();
			$shipping_cost = $this->context->cart->getOrderShippingCost();
		}
		else
		{
			$discounts = $this->context->cart->getCartRules();
			$shipping_cost = $this->context->cart->getTotalShippingCost();
		}
		
		if (count($discounts) > 0)
			foreach ($discounts as $product)
			{
				$price = -1 * Tools::ps_round($product['value_real'], $this->decimals);
				$total = Tools::ps_round($total + $price, $this->decimals);
			}
		
		return Tools::ps_round($shipping_cost, $this->decimals) + $total;
	}

private function _storeToken()
	{
		if (is_array($this->result) && isset($this->result['TOKEN']))
			$this->token = (string)$this->result['TOKEN'];
	}

// Store data for the next reloading page
	private function _storeCookieInfo()
	{
		$tab = array();

foreach ($this->cookie_key as $key)
			$tab[$key] = $this->{$key};

$this->context->cookie->{self::$COOKIE_NAME} = serialize($tab);
	}

public function hasSucceedRequest()
	{
		if (is_array($this->result))
			foreach(array('ACK', 'PAYMENTINFO_0_ACK') as $key)
				if (isset($this->result[$key]) && strtoupper($this->result[$key]) == 'SUCCESS')
					return true;

return false;
	}

private function getSecureKey()
	{
		if (!count($this->product_list))
			$this->initParameters();

$key = array();

foreach($this->product_list as $product)
		{
			$id_product = $product['id_product'];
			$id_product_attribute = $product['id_product_attribute'];
			$quantity = $product['quantity'];

$key[] = $id_product.$id_product_attribute.$quantity._COOKIE_KEY_;
		}

return md5(serialize($key));
	}

public function isProductsListStillRight()
	{
		return $this->secure_key == $this->getSecureKey();
	}

public function setExpressCheckoutType($type)
	{
		if (in_array($type, $this->available_type))
		{
			$this->type = $type;
			return true;
		}
		return false;
	}

public function redirectToAPI()
	{
		$this->secure_key = $this->getSecureKey();
		$this->_storeCookieInfo();

if ($this->useMobile())
			$url = '/cgi-bin/webscr?cmd=_express-checkout-mobile';
		else
			$url = '/websc&cmd=_express-checkout';
			
		header('Location: https://'.$this->getPayPalURL().$url.'&token='.urldecode($this->token));
		exit(0);
	}

public function redirectToCheckout($customer, $redirect = false)
	{
		$this->ready = true;
		$this->_storeCookieInfo();

$this->context->cookie->id_customer = (int)$customer->id;
		$this->context->cookie->customer_lastname = $customer->lastname;
		$this->context->cookie->customer_firstname = $customer->firstname;
		$this->context->cookie->passwd = $customer->passwd;
		$this->context->cookie->email = $customer->email;
		$this->context->cookie->is_guest = $customer->isGuest();
		$this->context->cookie->logged = 1;

if (_PS_VERSION_ < '1.5')
			Module::hookExec('authentication');
		else
			Hook::exec('authentication');

if ($redirect)
		{
			$link = $this->context->link->getPageLink('order.php', false, null, array('step' => '3'));
			Tools::redirectLink($link);
			exit(0);
		}
	}
}

Testo modificato

Apri file

include_once(_PS_MODULE_DIR_.'paypal/paypal.php');
include_once(_PS_MODULE_DIR_.'paypal/api/paypal_lib.php');

//****** Dev only
error_reporting(E_ALL);
ini_set('display_errors', '1');

include_once('Logging.php');
// Logging class initialization
$logger = new Logging();
$logger->lfile('mylog.txt');