调整app支付

app/common/service/pay/WeChatPayService.php

@@ -215,7 +215,7 @@ class WeChatPayService extends BasePayService
         ]);
         $result = $response->toArray(false);
         $this->checkResultFail($result);
-        return $result['prepay_id'];
+        return $this->configForPayment($result['prepay_id'], $appId);
     }
 
 
@@ -390,8 +390,36 @@ class WeChatPayService extends BasePayService
         return $server->serve();
     }
 
+    public function configForPayment($prepayId, $appId)
+    {
+        $config = [
+            'appId' => $appId,
+            'timeStamp' => strval(time()),
+            'nonceStr' => uniqid(),
+            'package' => "prepay_id=$prepayId",
+            'signType' => 'RSA',
+        ];
+        $message = $config['appId'] . "\n" .
+            $config['timeStamp'] . "\n" .
+            $config['nonceStr'] . "\n" .
+            $config['package'] . "\n";
+        openssl_sign($message, $raw_sign, $this->getPrivateKey(), 'sha256WithRSAEncryption');
+        $sign = base64_encode($raw_sign);
 
+        $config['paySign'] = $sign;
+        $config['timestamp'] = $config['timeStamp'];
+        unset($config['timeStamp']);
+        return $config;
+    }
 
-
+    protected function getPrivateKey()
+    {
+        if (!file_exists($this->config['private_key'])) {
+            throw new \InvalidArgumentException(
+                "SSL certificate not found: {$this->config['private_key']}"
+            );
+        }
+        return openssl_pkey_get_private(file_get_contents($this->config['private_key']));
+    }
 
 }