public function start_ipn($data, $config)
{
require_once 'assets/google-checkout/library/googlecart.php';
require_once 'assets/google-checkout/library/googleitem.php';
require_once 'assets/google-checkout/library/googleshipping.php';
require_once 'assets/google-checkout/library/googletax.php';
$merchant_id = $config['merchant_id'];
// Your Merchant ID
$merchant_key = $config['merchant_key'];
// Your Merchant Key
$server_type = $config['sandbox'];
$currency = "USD";
$cart = new GoogleCart($merchant_id, $merchant_key, $server_type, $currency);
$cart->SetMerchantPrivateData(new MerchantPrivateData(array("transaction_id" => $data['transaction_id'])));
$i = 1;
foreach ($data["cart"]["items"] as $items) {
${'item_' . $i} = new GoogleItem($items['title'], "", $items['quantity'], $this->_currency_round($items["price"]));
${'item_' . $i}->SetMerchantItemId($items["product_id"]);
$cart->AddItem(${'item_' . $i});
$i++;
}
// Applying a discount
if ($data['cart_discount'] != 0) {
${'item_' . $i} = new GoogleItem("Discount Applied", "", 1, "-" . $this->_currency_round($data['cart_discount']));
$cart->AddItem(${'item_' . $i});
}
// Calculating the Tax by taking the subtotal, subtracting the discount and
// dividing by the pre-calculated rate.
// -- Then formatting the number by 2 decimal places
if ($data['cart_tax'] == 0) {
$taxrate = 0;
} else {
$taxrate = number_format($data['cart_subtotal'] - $data['cart_discount'] / $data['cart_tax'], 2);
}
$tax_rule = new GoogleDefaultTaxRule($taxrate);
$tax_rule->SetWorldArea(true);
$cart->AddDefaultTaxRules($tax_rule);
$ship_1 = new GoogleFlatRateShipping("Shipping", $data['cart_shipping']);
$cart->AddShipping($ship_1);
// Specify <edit-cart-url>
$cart->SetEditCartUrl($data['return']);
// Specify "Return to xyz" link
$cart->SetContinueShoppingUrl($data['cancel_return']);
// Define rounding policy
$cart->AddRoundingPolicy("CEILING", "TOTAL");
echo ' <html>
<head>
<title>Google Checkout</title>
</head>
<body onLoad="document.forms[\'gateway_form\'].submit();">
<form method="post" name="gateway_form" action="' . $cart->checkout_url . '">
<input type="hidden" name="cart" value="' . base64_encode($cart->GetXML()) . '"/>
<input type="hidden" name="signature" value="' . base64_encode($cart->CalcHmacSha1($cart->GetXML())) . '" />
<p style="text-align:center;">
Your order is being processed... will be redirected to the payment website.
<br />
<br />
If you are not automatically redirected to Google Checkout within 5 seconds...<br /><br />
<input type="submit" value="Click Here">
</p>
</form>
</body>
</html>';
}
/**
* Sets appropriate parameters for checking out to google
*
* @param array $params name value pair of contribution datat
*
* @param $component
* @throws Exception
* @return void
*/
function doTransferCheckout(&$params, $component)
{
$component = strtolower($component);
$url = rtrim($this->_paymentProcessor['url_site'], '/') . '/cws/v2/Merchant/' . $this->_paymentProcessor['user_name'] . '/checkout';
//Create a new shopping cart object
// Merchant ID
$merchant_id = $this->_paymentProcessor['user_name'];
// Merchant Key
$merchant_key = $this->_paymentProcessor['password'];
$server_type = $this->_mode == 'test' ? 'sandbox' : '';
$cart = new GoogleCart($merchant_id, $merchant_key, $server_type);
$item1 = new GoogleItem($params['item_name'], '', 1, $params['amount'], $params['currencyID']);
$cart->AddItem($item1);
if ($component == "event") {
$privateData = "contactID={$params['contactID']},contributionID={$params['contributionID']},contributionTypeID={$params['contributionTypeID']},eventID={$params['eventID']},participantID={$params['participantID']},invoiceID={$params['invoiceID']}";
} elseif ($component == "contribute") {
$privateData = "contactID={$params['contactID']},contributionID={$params['contributionID']},contributionTypeID={$params['contributionTypeID']},invoiceID={$params['invoiceID']}";
$membershipID = CRM_Utils_Array::value('membershipID', $params);
if ($membershipID) {
$privateData .= ",membershipID={$membershipID}";
}
$relatedContactID = CRM_Utils_Array::value('related_contact', $params);
if ($relatedContactID) {
$privateData .= ",relatedContactID={$relatedContactID}";
$onBehalfDupeAlert = CRM_Utils_Array::value('onbehalf_dupe_alert', $params);
if ($onBehalfDupeAlert) {
$privateData .= ",onBehalfDupeAlert={$onBehalfDupeAlert}";
}
}
}
// Allow further manipulation of the arguments via custom hooks ..
CRM_Utils_Hook::alterPaymentProcessorParams($this, $params, $privateData);
$cart->SetMerchantPrivateData($privateData);
if ($component == "event") {
$returnURL = CRM_Utils_System::url('civicrm/event/register', "_qf_ThankYou_display=1&qfKey={$params['qfKey']}", TRUE, NULL, FALSE);
} elseif ($component == "contribute") {
$returnURL = CRM_Utils_System::url('civicrm/contribute/transact', "_qf_ThankYou_display=1&qfKey={$params['qfKey']}", TRUE, NULL, FALSE);
}
$cart->SetContinueShoppingUrl($returnURL);
$cartVal = base64_encode($cart->GetXML());
$signatureVal = base64_encode($cart->CalcHmacSha1($cart->GetXML()));
$googleParams = array('cart' => $cartVal, 'signature' => $signatureVal);
require_once 'HTTP/Request.php';
$params = array('method' => HTTP_REQUEST_METHOD_POST, 'allowRedirects' => FALSE);
$request = new HTTP_Request($url, $params);
foreach ($googleParams as $key => $value) {
$request->addPostData($key, $value);
}
$result = $request->sendRequest();
if (PEAR::isError($result)) {
CRM_Core_Error::fatal($result->getMessage());
}
if ($request->getResponseCode() != 302) {
CRM_Core_Error::fatal(ts('Invalid response code received from Google Checkout: %1', array(1 => $request->getResponseCode())));
}
CRM_Utils_System::redirect($request->getResponseHeader('location'));
exit;
}
