first commit

2025-10-29 11:42:25 +01:00
commit 703f50a09d
4595 changed files with 385164 additions and 0 deletions
--- a/common/Billing/Gateways/Paypal/PaypalWebhookController.php
+++ b/common/Billing/Gateways/Paypal/PaypalWebhookController.php
@@ -0,0 +1,103 @@
+<?php namespace Common\Billing\Gateways\Paypal;
+
+use Common\Billing\GatewayException;
+use Common\Billing\Notifications\PaymentFailed;
+use Common\Billing\Subscription;
+use Illuminate\Http\Request;
+use Illuminate\Routing\Controller;
+use Illuminate\Support\Arr;
+use Symfony\Component\HttpFoundation\Response;
+
+class PaypalWebhookController extends Controller
+{
+    use InteractsWithPaypalRestApi;
+
+    public function __construct(
+        protected Subscription $subscription,
+        protected Paypal $paypal,
+    ) {
+    }
+
+    public function handleWebhook(Request $request): Response
+    {
+        $payload = $request->all();
+
+        if (
+            config('common.site.verify_paypal_webhook') &&
+            !$this->webhookIsValid()
+        ) {
+            return response('Webhook validation failed', 422);
+        }
+
+        return match ($payload['event_type']) {
+            'BILLING.SUBSCRIPTION.PAYMENT.FAILED'
+                => $this->handleInvoicePaymentFailed($payload),
+            'BILLING.SUBSCRIPTION.ACTIVATED',
+            'BILLING.SUBSCRIPTION.CANCELLED',
+            'BILLING.SUBSCRIPTION.EXPIRED',
+            'BILLING.SUBSCRIPTION.SUSPENDED'
+                => $this->handleSubscriptionStateChanged($payload),
+            'PAYMENT.SALE.COMPLETED' => $this->handleSaleCompleted($payload),
+            default => response('Webhook Handled', 200),
+        };
+    }
+
+    protected function handleInvoicePaymentFailed(array $payload): Response
+    {
+        $paypalSubscriptionId = Arr::get(
+            $payload,
+            'resource.billing_agreement_id',
+        );
+
+        $subscription = $this->subscription
+            ->where('gateway_id', $paypalSubscriptionId)
+            ->first();
+        $subscription?->user->notify(new PaymentFailed($subscription));
+
+        return response('Webhook handled', 200);
+    }
+
+    protected function handleSaleCompleted(array $payload): Response
+    {
+        $this->paypal->subscriptions->sync(
+            $payload['resource']['billing_agreement_id'],
+        );
+
+        return response('Webhook Handled', 200);
+    }
+
+    protected function handleSubscriptionStateChanged(array $payload): Response
+    {
+        $this->paypal->subscriptions->sync($payload['resource']['id']);
+
+        return response('Webhook Handled', 200);
+    }
+
+    protected function webhookIsValid(): bool
+    {
+        $payload = [
+            'auth_algo' => request()->header('PAYPAL-AUTH-ALGO'),
+            'cert_url' => request()->header('PAYPAL-CERT-URL'),
+            'transmission_id' => request()->header('PAYPAL-TRANSMISSION-ID'),
+            'transmission_sig' => request()->header('PAYPAL-TRANSMISSION-SIG'),
+            'transmission_time' => request()->header(
+                'PAYPAL-TRANSMISSION-TIME',
+            ),
+            'webhook_id' => config('services.paypal.webhook_id'),
+            'webhook_event' => request()->all(),
+        ];
+
+        $response = $this->paypal()->post(
+            'notifications/verify-webhook-signature',
+            $payload,
+        );
+
+        if (!$response->successful()) {
+            throw new GatewayException(
+                "Could not validate paypal webhook: {$response->body()}",
+            );
+        }
+
+        return $response['verification_status'] === 'SUCCESS';
+    }
+}