Stripe: add Checkout support & directly show the payments id

app/Payments/StripeCheckout.php

@@ -0,0 +1,124 @@
+<?php
+
+namespace App\Payments;
+
+use Stripe\Stripe;
+use Stripe\Checkout\Session;
+
+class StripeCheckout {
+    public function __construct($config)
+    {
+        $this->config = $config;
+    }
+
+    public function form()
+    {
+        return [
+            'currency' => [
+                'label' => '货币单位',
+                'description' => '',
+                'type' => 'input',
+            ],
+            'stripe_sk_live' => [
+                'label' => 'SK_LIVE',
+                'description' => 'API 密钥',
+                'type' => 'input',
+            ],
+            'stripe_pk_live' => [
+                'label' => 'PK_LIVE',
+                'description' => 'API 公钥',
+                'type' => 'input',
+            ],
+            'stripe_webhook_key' => [
+                'label' => 'WebHook 密钥签名',
+                'description' => '',
+                'type' => 'input',
+            ]
+        ];
+    }
+
+    public function pay($order)
+    {
+        $currency = $this->config['currency'];
+        $exchange = $this->exchange('CNY', strtoupper($currency));
+        if (!$exchange) {
+            abort(500, __('Currency conversion has timed out, please try again later'));
+        }
+
+        $params = [
+            'success_url' => $order['return_url'],
+            'cancel_url' => $order['return_url'],
+            'client_reference_id' => $order['trade_no'],
+            'line_items' => [
+                [
+                    'price_data' => [
+                        'currency' => $currency,
+                        'product_data' => [
+                            'name' => $order['trade_no']
+                        ],
+                        'unit_amount' => floor($order['total_amount'] * $exchange)
+                    ],
+                    'quantity' => 1
+                ]
+            ],
+            'mode' => 'payment'
+            // 'customer_email' => $user['email'] not support
+
+        ];
+
+        Stripe::setApiKey($this->config['stripe_sk_live']);
+        try {
+            $session = Session::create($params);
+        } catch (\Exception $e) {
+            info($e);
+            abort(500, "Failed to create order. Error: {$e->getMessage}");
+        }
+        return [
+            'type' => 1, // 0:qrcode 1:url
+            'data' => $session->url
+        ];
+    }
+
+    public function notify($params)
+    {
+        \Stripe\Stripe::setApiKey($this->config['stripe_sk_live']);
+        try {
+            $event = \Stripe\Webhook::constructEvent(
+                file_get_contents('php://input'),
+                $_SERVER['HTTP_STRIPE_SIGNATURE'],
+                $this->config['stripe_webhook_key']
+            );
+        } catch (\Stripe\Error\SignatureVerification $e) {
+            abort(400);
+        }
+
+        switch ($event->type) {
+            case 'checkout.session.completed':
+                $object = $event->data->object;
+                if ($object->payment_status === 'paid') {
+                    return [
+                        'trade_no' => $object->client_reference_id,
+                        'callback_no' => $object->payment_intent
+                    ];
+                }
+                break;
+            case 'checkout.session.async_payment_succeeded':
+                $object = $event->data->object;
+                return [
+                    'trade_no' => $object->client_reference_id,
+                    'callback_no' => $object->payment_intent
+                ];
+                break;
+            default:
+                abort(500, 'event is not support');
+        }
+        die('success');
+    }
+
+    private function exchange($from, $to)
+    {
+        $result = file_get_contents('https://api.exchangerate.host/latest?symbols=' . $to . '&base=' . $from);
+        $result = json_decode($result, true);
+        return $result['rates'][$to];
+    }
+}