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Add webhook endpoint (#12)
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@onurpolattimur
onurpolattimur authored Apr 20, 2022
1 parent 4caa1a0 commit 8dc675c
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Showing 4 changed files with 179 additions and 63 deletions.
145 changes: 120 additions & 25 deletions craftgate-payment-gateway.php
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
* Description: Accept debit/credit card payments easily and directly on your WordPress site using Craftgate.
* Author: Craftgate
* Author URI: https://craftgate.io/
* Version: 1.0.4
* Version: 1.0.5
* Requires at least: 4.4
* Tested up to: 5.8.3
* WC requires at least: 3.0.0
Expand Down Expand Up @@ -137,6 +137,7 @@ private function define_woocommerce_actions()
add_action('woocommerce_update_options_payment_gateways_' . $this->id, array($this, 'process_admin_options'));
add_action('woocommerce_receipt_craftgate_gateway', array($this, 'init_craftgate_checkout_form'));
add_action('woocommerce_api_craftgate_gateway_callback', array($this, 'handle_craftgate_checkout_form_result'));
add_action('woocommerce_api_craftgate_gateway_webhook', array($this, 'handle_craftgate_webhook_result'));
}

/**
Expand Down Expand Up @@ -175,60 +176,146 @@ public function init_craftgate_checkout_form($order_id = null)
}
}

/**
* Check payment is processed before
*/
private function is_payment_processed_before($checkout_token)
{
$orders = wc_get_orders(array(
'limit' => -1,
'meta_key' => 'craftgate_checkout_token',
'meta_value' => $checkout_token,
'meta_compare' => '=',
'return' => 'objects'
));

foreach ($orders as $order) {
if (!in_array($order->get_status(), ['failed', 'pending'])) {
return true;
}
}
return false;
}

/**
* Decide whether process webhook request and return checkout token
*/
private function should_process_webhook_request($webhook_data)
{
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
return false;
}

$event_type = wc_clean($webhook_data['eventType']);
$status = wc_clean($webhook_data['status']);
$checkout_token = wc_clean($webhook_data['payloadId']);

if ($event_type !== 'CHECKOUTFORM_AUTH' || $status !== "SUCCESS" || !isset($checkout_token) || $this->is_payment_processed_before($checkout_token)) {
return false;
}
return true;
}

/**
* Handles Craftgate webhook result.
*/
public function handle_craftgate_webhook_result()
{
$webhook_data = json_decode(file_get_contents('php://input'), true);
if (!isset($webhook_data) || !$this->should_process_webhook_request($webhook_data)) {
exit();
}

$checkout_token = wc_clean($webhook_data['payloadId']);;
$checkout_form_result = $this->retrieve_checkout_form_result($checkout_token);
if ($checkout_form_result->paymentStatus !== 'SUCCESS') {
exit();
}

$conversationId = $checkout_form_result->conversationId;
if (!isset($conversationId)) {
exit();
}
$order = $this->retrieve_order($conversationId);
$this->update_order_checkout_form_result_metadata($order, $checkout_form_result, $checkout_token);
$this->complete_order_for_success_payment($checkout_form_result, $order);
exit();
}

/**
* Completes order for success payment.
*/
private function complete_order_for_success_payment($checkout_form_result, $order)
{
global $woocommerce;
if ($order->get_status() !== 'pending' && $order->get_status() !== 'failed') {
return;
}

if ($checkout_form_result->installment > 1) {
$this->update_order_for_installment($order, $checkout_form_result);
}

$customer_id = $order->get_user()->ID;
if (isset($checkout_form_result->cardUserKey) && $this->retrieve_card_user_key($customer_id, $this->api_key) != $checkout_form_result->cardUserKey) {
$this->save_card_user_key($customer_id, $checkout_form_result->cardUserKey, $this->api_key);
}

$order->payment_complete();
$orderMessage = 'Payment ID: ' . $checkout_form_result->id;
$order->add_order_note($orderMessage, 0, true);
WC()->cart->empty_cart();
$woocommerce->cart->empty_cart();
wc_empty_cart();
}

/**
* Handles Craftgate checkout result.
*/
public function handle_craftgate_checkout_form_result()
{
try {
global $woocommerce;
$this->validate_handle_checkout_form_result_params();
$order_id = wc_clean($_GET["order_id"]);
$order = $this->retrieve_order($order_id);
$GLOBALS["cg-lang-header"] = $this->get_option("language");
$checkout_form_result = $this->craftgate_api->retrieve_checkout_form_result(wc_clean($_POST["token"]));
if ($order->get_status() == 'processing') {
echo "<script>window.top.location.href = '" . $this->get_return_url($order) . "';</script>";
exit;
}

$checkout_token = wc_clean($_POST["token"]);
$checkout_form_result = $this->retrieve_checkout_form_result($checkout_token);
$this->validate_order_id_equals_conversation_id($checkout_form_result, $order_id);
$this->update_order_checkout_form_result_metadata($order, $checkout_form_result);
$this->update_order_checkout_form_result_metadata($order, $checkout_form_result, $checkout_token);

// Checks payment error.
if (!isset($checkout_form_result->paymentError) && $checkout_form_result->paymentStatus === 'SUCCESS') {
if ($checkout_form_result->installment > 1) {
$this->update_order_for_installment($order, $checkout_form_result);
}

$customer_id = $order->get_user()->ID;
if (isset($checkout_form_result->cardUserKey) && $this->retrieve_card_user_key($customer_id, $this->api_key) != $checkout_form_result->cardUserKey) {
$this->save_card_user_key($customer_id, $checkout_form_result->cardUserKey, $this->api_key);
}

$order->payment_complete();
$orderMessage = 'Payment ID: ' . $checkout_form_result->id;
$order->add_order_note($orderMessage, 0, true);
WC()->cart->empty_cart();
$woocommerce->cart->empty_cart();
wc_empty_cart();
$this->complete_order_for_success_payment($checkout_form_result, $order);
echo "<script>window.top.location.href = '" . $this->get_return_url($order) . "';</script>";
} else {
$error = $checkout_form_result->paymentError->errorCode . ' - ' . $checkout_form_result->paymentError->errorDescription . ' - ' . $checkout_form_result->paymentError->errorGroup;
$order->update_meta_data('craftgate_payment_error', $error);
$order->update_status('failed', $error);
$order->save();
wc_add_notice(__($checkout_form_result->paymentError->errorDescription, $this->text_domain), 'error');
$redirectUrl = wc_get_checkout_url();
echo "<script>window.top.location.href = '" . $redirectUrl . "';</script>";
echo "<script>window.top.location.href = '" . wc_get_checkout_url() . "';</script>";
}

exit;
} catch (Exception $e) {
error_log($e->getMessage());
wc_add_notice(__($e->getMessage(), $this->text_domain), 'error');
$redirectUrl = wc_get_checkout_url();
echo "<script>window.top.location.href = '" . $redirectUrl . "';</script>";
echo "<script>window.top.location.href = '" . wc_get_checkout_url() . "';</script>";
$this->render_error_message(__('An error occurred. Error Code: ', $this->text_domain) . '-2');
}
}

private function retrieve_checkout_form_result($checkout_token)
{
$GLOBALS["cg-lang-header"] = $this->get_option("language");
return $this->craftgate_api->retrieve_checkout_form_result($checkout_token);
}

/**
* Checks if API request is valid.
*
Expand Down Expand Up @@ -446,11 +533,12 @@ private function validate_order_id_equals_conversation_id($checkout_form_result,
* @param $order object WooCommerce order
* @param $checkout_form_result object Checkout Form result
*/
private function update_order_checkout_form_result_metadata($order, $checkout_form_result)
private function update_order_checkout_form_result_metadata($order, $checkout_form_result, $checkout_token)
{
if (isset($checkout_form_result->id)) {
$order->update_meta_data('environment', $this->is_sandbox_active ? 'sandbox' : 'live');
$order->update_meta_data('craftgate_payment_id', $checkout_form_result->id);
$order->update_meta_data('craftgate_checkout_token', $checkout_token);
}
$order->save();
}
Expand Down Expand Up @@ -561,6 +649,13 @@ public function init_admin_settings_form_fields()
'description' => __('Example: hideFooter=true&animatedCard=true', $this->text_domain),
'default' => '',
),
'webhook_url' => array(
'title' => __('Webhook URL', $this->text_domain),
'type' => 'text',
'disabled' => true,
'description' => __('The URL that payment results will be sent to on the server-side. You should enter this webhook address to Craftgate Merchant Panel to get webhook request. You can see details <a href="https://developer.craftgate.io/webhook">here</a>.', $this->text_domain),
'default' => rtrim(get_bloginfo('url'), '/') . '/' . "?wc-api=craftgate_gateway_webhook",
),
);
}

Expand Down
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