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315
extensions/Gateways/PayPal/PayPal.php
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315
extensions/Gateways/PayPal/PayPal.php
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<?php
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namespace Paymenter\Extensions\Gateways\PayPal;
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use App\Classes\Extension\Gateway;
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use App\Events\Service\Updated;
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use App\Events\ServiceCancellation\Created;
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use App\Helpers\ExtensionHelper;
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use App\Models\Invoice;
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use App\Models\InvoiceItem;
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use App\Models\Service;
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use Exception;
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use Illuminate\Http\Request;
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use Illuminate\Support\Facades\Event;
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use Illuminate\Support\Facades\Http;
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use Illuminate\Support\Facades\View;
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class PayPal extends Gateway
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{
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public function boot()
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{
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require __DIR__ . '/routes.php';
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// Register webhook route
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View::addNamespace('gateways.paypal', __DIR__ . '/resources/views');
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Event::listen(Updated::class, function ($event) {
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if ($event->service->properties->where('key', 'has_paypal_subscription')->first()?->value !== '1') {
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return;
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}
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if ($event->service->isDirty('price')) {
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try {
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$this->updateSubscription($event->service);
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} catch (Exception $e) {
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}
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}
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if ($event->service->isDirty('status') && $event->service->status === Service::STATUS_CANCELLED) {
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try {
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$this->cancelSubscription($event->service);
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} catch (Exception $e) {
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}
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}
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});
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Event::listen(Created::class, function (Created $event) {
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$service = $event->cancellation->service;
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if ($service->properties->where('key', 'has_paypal_subscription')->first()?->value !== '1') {
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return;
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}
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try {
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$this->cancelSubscription($service);
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} catch (Exception $e) {
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// Log the error or handle it as needed
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}
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});
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}
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public function getConfig($values = [])
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{
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return [
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[
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'name' => 'client_id',
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'label' => 'Client ID',
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'type' => 'text',
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'description' => 'Find your API keys at https://developer.paypal.com/developer/applications',
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'required' => true,
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],
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[
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'name' => 'client_secret',
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'label' => 'Client Secret',
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'type' => 'text',
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'description' => 'Find your API keys at https://developer.paypal.com/developer/applications',
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'required' => true,
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],
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[
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'name' => 'webhook_id',
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'label' => 'Webhook ID',
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'type' => 'text',
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'description' => 'Find your webhook ID at https://developer.paypal.com/developer/webhooks',
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'required' => true,
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],
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[
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'name' => 'test_mode',
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'label' => 'Test Mode',
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'type' => 'checkbox',
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'description' => 'Enable test mode',
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'required' => false,
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],
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[
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'name' => 'paypal_use_subscriptions',
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'label' => 'Use subscriptions',
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'type' => 'checkbox',
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'description' => 'Enable this option if you want to use subscriptions with PayPal (if available)',
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'required' => false,
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],
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];
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}
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private function generateAccessToken()
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{
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return once(function () {
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$url = $this->config('test_mode') ? 'https://api-m.sandbox.paypal.com' : 'https://api-m.paypal.com';
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$result = Http::withHeaders([
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'Accept' => 'application/json',
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'Authorization' => 'Basic ' . base64_encode($this->config('client_id') . ':' . $this->config('client_secret')),
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])->asForm()->post($url . '/v1/oauth2/token', [
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'grant_type' => 'client_credentials',
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]);
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if ($result->failed()) {
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throw new Exception('Failed to generate access token: ' . $result->body());
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}
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return $result->json()['access_token'];
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});
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}
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public function request($method, $url, $data = [])
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{
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return Http::withHeaders([
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'Content-Type' => 'application/json',
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'Authorization' => 'Bearer ' . $this->generateAccessToken(),
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])->$method($url, $data)->object();
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}
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public function pay($invoice, $total)
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{
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$url = $this->config('test_mode') ? 'https://api-m.sandbox.paypal.com' : 'https://api-m.paypal.com';
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$eligableforSubscription = collect($invoice->items)->filter(function ($item) {
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return $item->reference_type === Service::class;
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})->count() == $invoice->items->count();
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if ($this->config('paypal_use_subscriptions') && $eligableforSubscription && $invoice->items->map(fn ($item) => $item->reference->plan->billing_period . $item->reference->plan->billing_unit)->unique()->count() === 1) {
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$paypalProduct = $this->request('post', $url . '/v1/catalogs/products', [
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'name' => $invoice->items->first()->reference->product->name,
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'type' => 'SERVICE',
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]);
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// For each item in the invoice, create a billing cycle
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$billingCycles[] = [
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'frequency' => [
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'interval_unit' => strtoupper($invoice->items->first()->reference->plan->billing_unit),
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'interval_count' => $invoice->items->first()->reference->plan->billing_period,
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],
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'tenure_type' => 'TRIAL',
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'sequence' => 1,
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'total_cycles' => 1,
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'pricing_scheme' => [
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'fixed_price' => [
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'value' => $total,
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'currency_code' => $invoice->currency_code,
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],
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],
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];
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$nextSum = $invoice->items->sum(fn ($item) => $item->reference->price * $item->reference->quantity);
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$billingCycles[] = [
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'frequency' => [
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'interval_unit' => strtoupper($invoice->items->first()->reference->plan->billing_unit),
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'interval_count' => $invoice->items->first()->reference->plan->billing_period,
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],
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'tenure_type' => 'REGULAR',
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'sequence' => 2,
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'total_cycles' => 0,
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'pricing_scheme' => [
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'fixed_price' => [
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'value' => $nextSum,
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'currency_code' => $invoice->currency_code,
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],
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],
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];
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$plan = $this->request('post', $url . '/v1/billing/plans', [
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'product_id' => $paypalProduct->id,
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'name' => $invoice->items->first()->reference->plan->name,
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'description' => $invoice->items->first()->reference->plan->description,
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'billing_cycles' => $billingCycles,
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'payment_preferences' => [
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'auto_bill_outstanding' => true,
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'setup_fee_failure_action' => 'CONTINUE',
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'payment_failure_threshold' => 3,
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],
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]);
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} else {
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$order = $this->request('post', $url . '/v2/checkout/orders', [
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'intent' => 'CAPTURE',
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'purchase_units' => [
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[
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'reference_id' => $invoice->id,
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'amount' => [
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'currency_code' => $invoice->currency_code,
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'value' => $total,
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],
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],
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],
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'application_context' => [
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'return_url' => route('invoices.show', $invoice),
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'cancel_url' => route('invoices.show', $invoice),
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// Disable shipping information
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'shipping_preference' => 'NO_SHIPPING',
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],
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]);
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}
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return view('gateways.paypal::pay', ['invoice' => $invoice, 'total' => $total, 'order' => $order ?? null, 'plan' => $plan ?? null, 'clientId' => $this->config('client_id')]);
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}
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public function capture(Request $request)
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{
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if (!$request->has('orderID')) {
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abort(400);
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}
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$orderID = $request->input('orderID');
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$url = $this->config('test_mode') ? 'https://api-m.sandbox.paypal.com' : 'https://api-m.paypal.com';
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// First check if the order is already captured
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$order = $this->request('get', $url . '/v2/checkout/orders/' . $orderID);
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if ($order->status === 'COMPLETED') {
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return $order;
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}
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$response = $this->request('post', $url . '/v2/checkout/orders/' . $orderID . '/capture', [
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'intent' => 'CAPTURE',
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]);
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ExtensionHelper::addPayment($response->purchase_units[0]->reference_id, 'PayPal', $response->purchase_units[0]->payments->captures[0]->amount->value, $response->purchase_units[0]->payments->captures[0]->seller_receivable_breakdown->paypal_fee->value, $response->id);
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return $response;
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}
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public function webhook(Request $request)
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{
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$body = $request->getContent();
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$sigString = $request->header('PAYPAL-TRANSMISSION-ID') . '|' . $request->header('PAYPAL-TRANSMISSION-TIME') . '|' . $this->config('webhook_id') . '|' . crc32($body);
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$pubKey = openssl_pkey_get_public(file_get_contents($request->header('PAYPAL-CERT-URL')));
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$details = openssl_pkey_get_details($pubKey);
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$verifyResult = openssl_verify(
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$sigString,
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base64_decode(
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$request->header('PAYPAL-TRANSMISSION-SIG')
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),
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$details['key'],
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'sha256WithRSAEncryption'
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);
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if ($verifyResult !== 1) {
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return response()->json(['status' => 'error']);
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}
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$body = $request->json()->all();
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// Handle the subscription event
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if ($body['event_type'] === 'BILLING.SUBSCRIPTION.CREATED' && isset($body['resource']['custom_id'])) {
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// Its activated so we can now add the subscription to the user (custom is the order id)
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Invoice::findOrFail($body['resource']['custom_id'])->items()->where('reference_type', Service::class)->each(function (InvoiceItem $item) use ($body) {
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$service = $item->reference;
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$service->subscription_id = $body['resource']['id'];
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$service->save();
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$service->properties()->updateOrCreate([
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'key' => 'has_paypal_subscription',
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'name' => 'Has PayPal Subscription',
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], [
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'value' => true,
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]);
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});
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} elseif ($body['event_type'] === 'PAYMENT.SALE.COMPLETED' && isset($body['resource']['billing_agreement_id'])) {
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Service::where('subscription_id', $body['resource']['billing_agreement_id'])->each(function (Service $service) use ($body) {
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// Add payment to the latest invoice
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$latestInvoice = $service->invoices()->latest()->first();
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ExtensionHelper::addPayment($latestInvoice->id, 'PayPal', $body['resource']['amount']['total'], $body['resource']['transaction_fee']['value'], $body['resource']['id']);
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});
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}
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return response()->json(['status' => 'success']);
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}
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public function updateSubscription(Service $service)
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{
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if ($service->properties->where('key', 'has_paypal_subscription')->first()?->value !== '1') {
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return false;
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}
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$paypal = new PayPal;
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// Update subscription price
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$newPrice = Service::where('subscription_id', $service->subscription_id)->sum('price');
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// Grab currenct subscription ID
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$subscriptionId = $service->subscription_id;
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$url = $paypal->config('test_mode') ? 'https://api-m.sandbox.paypal.com' : 'https://api-m.paypal.com';
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// Update subscription price
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$paypal->request('PATCH', $url . '/v1/billing/subscriptions/' . $subscriptionId, [
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[
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'op' => 'replace',
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'path' => '/plan/billing_cycles/@sequence==2/pricing_scheme/fixed_price',
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'value' => [
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'value' => $newPrice,
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'currency_code' => $service->currency_code,
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],
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],
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]);
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return true;
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}
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public function cancelSubscription(Service $service)
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{
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// Cancel subscription
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$url = $this->config('test_mode') ? 'https://api-m.sandbox.paypal.com' : 'https://api-m.paypal.com';
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$this->request('post', $url . '/v1/billing/subscriptions/' . $service->subscription_id . '/cancel', [
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'reason' => 'User canceled',
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]);
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$service->properties()->where('key', 'has_paypal_subscription')->delete();
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return true;
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}
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}
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