| 1 |
<?php |
| 2 |
|
| 3 |
namespace FluentCart\App\Modules\PaymentMethods\AirwallexGateway; |
| 4 |
|
| 5 |
use FluentCart\App\App; |
| 6 |
use FluentCart\App\Modules\PaymentMethods\Core\AbstractPaymentGateway; |
| 7 |
use FluentCart\App\Services\Payments\PaymentInstance; |
| 8 |
use FluentCart\App\Vite; |
| 9 |
use FluentCart\Framework\Support\Arr; |
| 10 |
|
| 11 |
class Airwallex extends AbstractPaymentGateway |
| 12 |
{ |
| 13 |
public array $supportedFeatures = [ |
| 14 |
'payment', |
| 15 |
'refund', |
| 16 |
'webhook' |
| 17 |
]; |
| 18 |
|
| 19 |
public function __construct() |
| 20 |
{ |
| 21 |
parent::__construct(new AirwallexSettingsBase()); |
| 22 |
} |
| 23 |
|
| 24 |
public function meta(): array |
| 25 |
{ |
| 26 |
return [ |
| 27 |
'title' => __('Airwallex', 'fluent-cart'), |
| 28 |
'route' => 'airwallex', |
| 29 |
'description' => __('Pay securely with Airwallex - Global payment processing', 'fluent-cart'), |
| 30 |
'logo' => Vite::getAssetUrl("images/payment-methods/airwallex-logo.svg"), |
| 31 |
'logo_light' => Vite::getAssetUrl("images/payment-methods/airwallex-logo-light.svg"), |
| 32 |
'icon' => Vite::getAssetUrl("images/payment-methods/airwallex-logo.svg"), |
| 33 |
'brand_color' => '#6c5ce7', |
| 34 |
'status' => $this->settings->get('is_active') === 'yes', |
| 35 |
'upcoming' => true, |
| 36 |
]; |
| 37 |
} |
| 38 |
|
| 39 |
public function boot() |
| 40 |
{ |
| 41 |
// init IPN related class/actions here |
| 42 |
add_filter('fluent_cart/payment_methods/airwallex_settings', [$this, 'getSettings'], 10, 2); |
| 43 |
} |
| 44 |
|
| 45 |
public function makePaymentFromPaymentInstance(PaymentInstance $paymentInstance) |
| 46 |
{ |
| 47 |
// todo: implement in future |
| 48 |
die(); |
| 49 |
} |
| 50 |
|
| 51 |
public function refund($refundInfo, $order, $transaction) |
| 52 |
{ |
| 53 |
// todo: implement in future |
| 54 |
die(); |
| 55 |
} |
| 56 |
|
| 57 |
public function handleIPN(): void |
| 58 |
{ |
| 59 |
// Airwallex is not released yet (meta 'upcoming' => true). The event |
| 60 |
// handlers below are unfinished scaffolding that write order state |
| 61 |
// directly, outside the transaction/event pipeline every live gateway |
| 62 |
// uses, and without the cross-checks a real listener needs. Refuse to |
| 63 |
// process any event while the gateway is upcoming so no forged or |
| 64 |
// replayed payload can reach them. |
| 65 |
// |
| 66 |
// Before removing this guard at GA, the handlers MUST: |
| 67 |
// - resolve the order by the intent id we stamped at intent creation, |
| 68 |
// never by attacker-supplied metadata.order_id; |
| 69 |
// - verify amount, currency and payment mode against the stored order; |
| 70 |
// - reject stale callbacks (timestamp-age window + per-event dedup) and |
| 71 |
// guard terminal states (do not flip a paid order to failed); |
| 72 |
// - route through the shared PaymentHelper/transaction machinery. |
| 73 |
if ($this->isUpcoming()) { |
| 74 |
http_response_code(404); |
| 75 |
exit(); |
| 76 |
} |
| 77 |
|
| 78 |
$payload = json_decode(file_get_contents('php://input'), true); // will get from request after verification |
| 79 |
// Verify webhook signature |
| 80 |
if (!$this->verifyWebhookSignature($payload)) { |
| 81 |
http_response_code(401); |
| 82 |
exit('Unauthorized'); |
| 83 |
} |
| 84 |
|
| 85 |
$eventType = $payload['name'] ?? ''; |
| 86 |
|
| 87 |
switch ($eventType) { |
| 88 |
case 'payment_intent.succeeded': |
| 89 |
$this->handlePaymentSucceeded($payload); |
| 90 |
break; |
| 91 |
case 'payment_intent.failed': |
| 92 |
$this->handlePaymentFailed($payload); |
| 93 |
break; |
| 94 |
case 'refund.received': |
| 95 |
$this->handleRefundReceived($payload); |
| 96 |
break; |
| 97 |
} |
| 98 |
|
| 99 |
http_response_code(200); |
| 100 |
exit('OK'); |
| 101 |
} |
| 102 |
|
| 103 |
public function getOrderInfo(array $data) |
| 104 |
{ |
| 105 |
$items = $this->getCheckoutItems(); |
| 106 |
|
| 107 |
$subTotal = 0; |
| 108 |
foreach ($items as $item) { |
| 109 |
$subTotal += intval($item['quantity'] * $item['unit_price']); |
| 110 |
} |
| 111 |
|
| 112 |
$paymentArgs = [ |
| 113 |
'client_id' => $this->settings->getClientId(), |
| 114 |
'amount' => $subTotal, |
| 115 |
'currency' => $this->storeSettings->get('currency'), |
| 116 |
]; |
| 117 |
|
| 118 |
wp_send_json([ |
| 119 |
'status' => 'success', |
| 120 |
'payment_args' => $paymentArgs, |
| 121 |
'has_subscription' => false |
| 122 |
], 200); |
| 123 |
} |
| 124 |
|
| 125 |
public function fields() |
| 126 |
{ |
| 127 |
$webhook_url = Arr::get($this->getListenerUrl(), 'listener_url'); |
| 128 |
$webhook_instructions = sprintf( |
| 129 |
'<div> |
| 130 |
<p><b>%1$s</b><code class="copyable-content">%2$s</code></p> |
| 131 |
<p>%3$s</p> |
| 132 |
<br> |
| 133 |
<h4>%4$s</h4> |
| 134 |
<br> |
| 135 |
<p>%5$s</p> |
| 136 |
<p>%6$s <a href="https://www.airwallex.com/app/settings/developer" target="_blank">%7$s</a></p> |
| 137 |
<p>%8$s <code class="copyable-content">%2$s</code></p> |
| 138 |
<p>%9$s</p> |
| 139 |
</div>', |
| 140 |
__('Webhook URL: ', 'fluent-cart'), // %1$s |
| 141 |
$webhook_url, // %2$s (reused) |
| 142 |
__('You should configure your Airwallex webhooks to get all updates of your payments remotely.', 'fluent-cart'), // %3$s |
| 143 |
__('How to configure?', 'fluent-cart'), // %4$s |
| 144 |
__('In your Airwallex Console:', 'fluent-cart'), // %5$s |
| 145 |
__('Go to Developers > Webhooks >', 'fluent-cart'), // %6$s |
| 146 |
__('Add webhook', 'fluent-cart'), // %7$s |
| 147 |
__('Enter The Webhook URL: ', 'fluent-cart'), // %8$s |
| 148 |
__('Select payment events', 'fluent-cart') // %9$s |
| 149 |
); |
| 150 |
|
| 151 |
return array( |
| 152 |
// 'notice' => [ |
| 153 |
// 'value' => $this->getStoreModeNotice(), |
| 154 |
// 'label' => __('Store Mode notice', 'fluent-cart'), |
| 155 |
// 'type' => 'notice' |
| 156 |
// ], |
| 157 |
'upcoming' => [ |
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'value' => $this->isUpcoming(), |
| 159 |
'label' => __('Payment method is upcoming!', 'fluent-cart'), |
| 160 |
'type' => 'upcoming' |
| 161 |
], |
| 162 |
'payment_mode' => [ |
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'type' => 'tabs', |
| 164 |
'schema' => [ |
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[ |
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'type' => 'tab', |
| 167 |
'label' => __('Test credentials', 'fluent-cart'), |
| 168 |
'value' => 'test', |
| 169 |
'schema' => [ |
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'test_client_id' => array( |
| 171 |
'value' => '', |
| 172 |
'label' => __('Test Client ID', 'fluent-cart'), |
| 173 |
'type' => 'text', |
| 174 |
'placeholder' => __('Your test client ID', 'fluent-cart'), |
| 175 |
'dependency' => [ |
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'depends_on' => 'payment_mode', |
| 177 |
'operator' => '=', |
| 178 |
'value' => 'test' |
| 179 |
] |
| 180 |
), |
| 181 |
'test_api_key' => array( |
| 182 |
'value' => '', |
| 183 |
'label' => __('Test API Key', 'fluent-cart'), |
| 184 |
'type' => 'password', |
| 185 |
'placeholder' => __('Your test API key', 'fluent-cart'), |
| 186 |
'dependency' => [ |
| 187 |
'depends_on' => 'payment_mode', |
| 188 |
'operator' => '=', |
| 189 |
'value' => 'test' |
| 190 |
] |
| 191 |
), |
| 192 |
], |
| 193 |
], |
| 194 |
[ |
| 195 |
'type' => 'tab', |
| 196 |
'label' => __('Live credentials', 'fluent-cart'), |
| 197 |
'value' => 'live', |
| 198 |
'schema' => [ |
| 199 |
'live_client_id' => array( |
| 200 |
'value' => '', |
| 201 |
'label' => __('Live Client ID', 'fluent-cart'), |
| 202 |
'type' => 'text', |
| 203 |
'placeholder' => __('Your live client ID', 'fluent-cart'), |
| 204 |
'dependency' => [ |
| 205 |
'depends_on' => 'payment_mode', |
| 206 |
'operator' => '=', |
| 207 |
'value' => 'live' |
| 208 |
] |
| 209 |
), |
| 210 |
'live_api_key' => array( |
| 211 |
'value' => '', |
| 212 |
'label' => __('Live API Key', 'fluent-cart'), |
| 213 |
'type' => 'password', |
| 214 |
'placeholder' => __('Your live API key', 'fluent-cart'), |
| 215 |
'dependency' => [ |
| 216 |
'depends_on' => 'payment_mode', |
| 217 |
'operator' => '=', |
| 218 |
'value' => 'live' |
| 219 |
] |
| 220 |
), |
| 221 |
] |
| 222 |
] |
| 223 |
] |
| 224 |
], |
| 225 |
'webhook_desc' => array( |
| 226 |
'value' => $webhook_instructions, |
| 227 |
'label' => __('Webhook URL', 'fluent-cart'), |
| 228 |
'type' => 'html_attr' |
| 229 |
), |
| 230 |
); |
| 231 |
} |
| 232 |
|
| 233 |
public static function validateSettings($data): array |
| 234 |
{ |
| 235 |
$clientId = $data['client_id'] ?? ''; |
| 236 |
$apiKey = $data['api_key'] ?? ''; |
| 237 |
|
| 238 |
if (empty($clientId) || empty($apiKey)) { |
| 239 |
return [ |
| 240 |
'status' => 'failed', |
| 241 |
'message' => __('Client ID and API Key are required', 'fluent-cart') |
| 242 |
]; |
| 243 |
} |
| 244 |
|
| 245 |
try { |
| 246 |
$testResponse = static::testApiConnection($clientId, $apiKey, $data['payment_mode'] ?? 'demo'); |
| 247 |
|
| 248 |
return [ |
| 249 |
'status' => 'success', |
| 250 |
'message' => __('Airwallex settings validated successfully', 'fluent-cart') |
| 251 |
]; |
| 252 |
} catch (\Exception $e) { |
| 253 |
return [ |
| 254 |
'status' => 'failed', |
| 255 |
'message' => $e->getMessage() |
| 256 |
]; |
| 257 |
} |
| 258 |
} |
| 259 |
|
| 260 |
public function getEnqueueScriptSrc($hasSubscription = 'no'): array |
| 261 |
{ |
| 262 |
$mode = $this->settings->getMode(); |
| 263 |
$airwallexJsUrl = $mode === 'production' |
| 264 |
? 'https://checkout.airwallex.com/assets/elements.bundle.min.js' |
| 265 |
: 'https://checkout.airwallex.com/assets/elements.bundle.min.js'; |
| 266 |
|
| 267 |
return [ |
| 268 |
[ |
| 269 |
'handle' => 'airwallex-elements-js', |
| 270 |
'src' => $airwallexJsUrl, |
| 271 |
], |
| 272 |
[ |
| 273 |
'handle' => 'fluent-cart-airwallex-checkout', |
| 274 |
'src' => Vite::getEnqueuePath('public/payment-methods/airwallex-checkout.js'), |
| 275 |
'deps' => ['airwallex-elements-js'] |
| 276 |
] |
| 277 |
]; |
| 278 |
} |
| 279 |
|
| 280 |
public function getEnqueueStyleSrc(): array |
| 281 |
{ |
| 282 |
return [ |
| 283 |
[ |
| 284 |
'handle' => 'fluent-cart-airwallex-styles', |
| 285 |
'src' => Vite::getEnqueuePath('public/payment-methods/airwallex.css'), |
| 286 |
] |
| 287 |
]; |
| 288 |
} |
| 289 |
|
| 290 |
private function getAccessToken() |
| 291 |
{ |
| 292 |
$clientId = $this->settings->getClientId(); |
| 293 |
$apiKey = $this->settings->getApiKey(); |
| 294 |
$baseUrl = $this->getApiBaseUrl(); |
| 295 |
|
| 296 |
$response = wp_remote_post("{$baseUrl}/api/v1/authentication/login", [ |
| 297 |
'headers' => [ |
| 298 |
'Content-Type' => 'application/json' |
| 299 |
], |
| 300 |
'body' => json_encode([ |
| 301 |
'x-client-id' => $clientId, |
| 302 |
'x-api-key' => $apiKey |
| 303 |
]), |
| 304 |
'timeout' => 30 |
| 305 |
]); |
| 306 |
|
| 307 |
if (is_wp_error($response)) { |
| 308 |
throw new \Exception(esc_html($response->get_error_message())); |
| 309 |
} |
| 310 |
|
| 311 |
$body = wp_remote_retrieve_body($response); |
| 312 |
$data = json_decode($body, true); |
| 313 |
|
| 314 |
if (wp_remote_retrieve_response_code($response) !== 201) { |
| 315 |
throw new \Exception(esc_html__('Failed to authenticate with Airwallex', 'fluent-cart')); |
| 316 |
} |
| 317 |
|
| 318 |
return $data['token']; |
| 319 |
} |
| 320 |
|
| 321 |
private function createAirwallexPaymentIntent($data, $accessToken) |
| 322 |
{ |
| 323 |
$baseUrl = $this->getApiBaseUrl(); |
| 324 |
|
| 325 |
$response = wp_remote_post("{$baseUrl}/api/v1/pa/payment_intents/create", [ |
| 326 |
'headers' => [ |
| 327 |
'Authorization' => 'Bearer ' . $accessToken, |
| 328 |
'Content-Type' => 'application/json' |
| 329 |
], |
| 330 |
'body' => json_encode($data), |
| 331 |
'timeout' => 30 |
| 332 |
]); |
| 333 |
|
| 334 |
if (is_wp_error($response)) { |
| 335 |
throw new \Exception(esc_html($response->get_error_message())); |
| 336 |
} |
| 337 |
|
| 338 |
$body = wp_remote_retrieve_body($response); |
| 339 |
$responseData = json_decode($body, true); |
| 340 |
|
| 341 |
if (wp_remote_retrieve_response_code($response) !== 201) { |
| 342 |
$error = $responseData['message'] ?? 'Unknown error'; |
| 343 |
throw new \Exception(esc_html($error)); |
| 344 |
} |
| 345 |
|
| 346 |
return $responseData; |
| 347 |
} |
| 348 |
|
| 349 |
private function processAirwallexRefund($refundData, $accessToken) |
| 350 |
{ |
| 351 |
$baseUrl = $this->getApiBaseUrl(); |
| 352 |
|
| 353 |
$response = wp_remote_post("{$baseUrl}/api/v1/pa/refunds/create", [ |
| 354 |
'headers' => [ |
| 355 |
'Authorization' => 'Bearer ' . $accessToken, |
| 356 |
'Content-Type' => 'application/json' |
| 357 |
], |
| 358 |
'body' => json_encode($refundData), |
| 359 |
'timeout' => 30 |
| 360 |
]); |
| 361 |
|
| 362 |
if (is_wp_error($response)) { |
| 363 |
throw new \Exception(esc_html($response->get_error_message())); |
| 364 |
} |
| 365 |
|
| 366 |
$body = wp_remote_retrieve_body($response); |
| 367 |
$responseData = json_decode($body, true); |
| 368 |
|
| 369 |
if (wp_remote_retrieve_response_code($response) !== 201) { |
| 370 |
$error = $responseData['message'] ?? 'Unknown error'; |
| 371 |
throw new \Exception(esc_html($error)); |
| 372 |
} |
| 373 |
|
| 374 |
return $responseData; |
| 375 |
} |
| 376 |
|
| 377 |
private static function testApiConnection($clientId, $apiKey, $mode) |
| 378 |
{ |
| 379 |
$baseUrl = $mode === 'production' |
| 380 |
? 'https://api.airwallex.com' |
| 381 |
: 'https://api-demo.airwallex.com'; |
| 382 |
|
| 383 |
$response = wp_remote_post("{$baseUrl}/api/v1/authentication/login", [ |
| 384 |
'headers' => [ |
| 385 |
'Content-Type' => 'application/json' |
| 386 |
], |
| 387 |
'body' => json_encode([ |
| 388 |
'x-client-id' => $clientId, |
| 389 |
'x-api-key' => $apiKey |
| 390 |
]), |
| 391 |
'timeout' => 30 |
| 392 |
]); |
| 393 |
|
| 394 |
if (is_wp_error($response)) { |
| 395 |
throw new \Exception(esc_html($response->get_error_message())); |
| 396 |
} |
| 397 |
|
| 398 |
if (wp_remote_retrieve_response_code($response) !== 201) { |
| 399 |
throw new \Exception(esc_html__('Invalid Airwallex credentials', 'fluent-cart')); |
| 400 |
} |
| 401 |
|
| 402 |
return true; |
| 403 |
} |
| 404 |
|
| 405 |
private function verifyWebhookSignature($payload) |
| 406 |
{ |
| 407 |
$serverData = App::request()->server(); |
| 408 |
$signature = Arr::get($serverData, 'HTTP_X_SIGNATURE', ''); |
| 409 |
$timestamp = Arr::get($serverData, 'HTTP_X_TIMESTAMP', ''); |
| 410 |
$webhookSecret = $this->settings->getWebhookSecret(); |
| 411 |
|
| 412 |
if (!$signature || !$timestamp || !$webhookSecret) { |
| 413 |
return false; |
| 414 |
} |
| 415 |
|
| 416 |
$signedPayload = $timestamp . json_encode($payload); |
| 417 |
$expectedSignature = hash_hmac('sha256', $signedPayload, $webhookSecret); |
| 418 |
|
| 419 |
return hash_equals($expectedSignature, $signature); |
| 420 |
} |
| 421 |
|
| 422 |
private function getApiBaseUrl() |
| 423 |
{ |
| 424 |
return $this->settings->getMode() === 'production' |
| 425 |
? 'https://api.airwallex.com' |
| 426 |
: 'https://api-demo.airwallex.com'; |
| 427 |
} |
| 428 |
|
| 429 |
private function getWebhookUrl() |
| 430 |
{ |
| 431 |
return site_url('?fluent_cart_payment_api_notify=airwallex'); |
| 432 |
} |
| 433 |
|
| 434 |
public function webHookPaymentMethodName() |
| 435 |
{ |
| 436 |
return $this->getMeta('route'); |
| 437 |
} |
| 438 |
|
| 439 |
private function generateRequestId($order, $type = 'payment') |
| 440 |
{ |
| 441 |
return $order->uuid . '_' . $type . '_' . time(); |
| 442 |
} |
| 443 |
|
| 444 |
private function handlePaymentSucceeded($payload) |
| 445 |
{ |
| 446 |
$paymentIntent = $payload['data']['object'] ?? []; |
| 447 |
$orderId = $paymentIntent['metadata']['order_id'] ?? ''; |
| 448 |
|
| 449 |
if ($orderId) { |
| 450 |
$order = fluent_cart_get_order($orderId); |
| 451 |
if ($order) { |
| 452 |
$this->handlePaymentSuccess($paymentIntent, $order); |
| 453 |
} |
| 454 |
} |
| 455 |
} |
| 456 |
|
| 457 |
private function handlePaymentFailed($payload) |
| 458 |
{ |
| 459 |
$paymentIntent = $payload['data']['object'] ?? []; |
| 460 |
$orderId = $paymentIntent['metadata']['order_id'] ?? ''; |
| 461 |
|
| 462 |
if ($orderId) { |
| 463 |
$order = fluent_cart_get_order($orderId); |
| 464 |
if ($order) { |
| 465 |
$this->handlePaymentFailure($paymentIntent, $order); |
| 466 |
} |
| 467 |
} |
| 468 |
} |
| 469 |
|
| 470 |
private function handleRefundReceived($payload) |
| 471 |
{ |
| 472 |
$refund = $payload['data']['object'] ?? []; |
| 473 |
// Process refund webhook logic here |
| 474 |
} |
| 475 |
|
| 476 |
private function handlePaymentSuccess($paymentIntent, $order) |
| 477 |
{ |
| 478 |
$order->payment_status = 'paid'; |
| 479 |
$order->status = 'processing'; |
| 480 |
$order->vendor_charge_id = $paymentIntent['id']; |
| 481 |
$order->save(); |
| 482 |
|
| 483 |
do_action('fluent_cart/payment_success', [ |
| 484 |
'order' => $order, |
| 485 |
'payment_intent' => $paymentIntent |
| 486 |
]); |
| 487 |
} |
| 488 |
|
| 489 |
private function handlePaymentFailure($paymentIntent, $order) |
| 490 |
{ |
| 491 |
$order->payment_status = 'failed'; |
| 492 |
$order->status = 'failed'; |
| 493 |
$order->save(); |
| 494 |
|
| 495 |
do_action('fluent_cart/payment_failed', [ |
| 496 |
'order' => $order, |
| 497 |
'payment_intent' => $paymentIntent |
| 498 |
]); |
| 499 |
} |
| 500 |
} |
| 501 |
|
