callback

app/Http/Controllers/WechatPayController.php

@@ -60,6 +60,7 @@ class WechatPayController extends Controller
         Log::info("请求头", ["headers" => $headers]);
         Log::info("请求体", ["body" => $body]);
         $res = WechatPayService::mchTransferCallback($headers, $body);
+        dd($res);
         if (empty($res)) {
             return $this->failure("回调失败");
         }

app/Services/WechatPayService.php

@@ -1,6 +1,7 @@
 <?php
 
 namespace App\Services;
+use App\Http\Response\ResponseJson;
 use Exception;
 use Illuminate\Support\Facades\Log;
 use WeChatPay\Builder;
@@ -10,6 +11,7 @@ use WeChatPay\Crypto\Rsa;
 
 class WechatPayService
 {
+    use ResponseJson;
     /**
      * 初始化一个APIv3客户端
      * @return void
@@ -116,13 +118,13 @@ class WechatPayService
         //     Log::error('微信回调验签失败', ['headers' => $headers]);
         //     return null;  // 返回 500 让微信重试
         // }
-
+        $decryptData = $this->decryptToString($rawBody);
         // 4. 解密回调数据
-        $decryptData = $this->decryptNotifyData($rawBody);
-        if (!$decryptData) {
-            Log::error('数据解密失败');
-            return null;
-        }
+        // $decryptData = $this->decryptNotifyData($rawBody);
+        // if (!$decryptData) {
+        //     Log::error('数据解密失败');
+        //     return null;
+        // }
 
         return $decryptData;
     }
@@ -218,6 +220,41 @@ class WechatPayService
         return json_decode($decrypted, true);
     }
 
+    public function decryptToString($data)
+    {
+        try {
+            $resource = $data['resource'];
+            $nonceStr = $resource['nonce'];
+            $ciphertext = $resource['ciphertext'];
+            $associatedData = $resource['associated_data'] ?? '';
+            $apiV3Key = config("wechatpay.payment.api3_key");
+
+            $ciphertext = base64_decode($ciphertext);
+            if (strlen($ciphertext) <= 16) {
+                return false;
+            }
+            if (in_array('aes-256-gcm', openssl_get_cipher_methods())) {
+                $ctext = substr($ciphertext, 0, -16);
+                $authTag = substr($ciphertext, -16);
+                $res = openssl_decrypt(
+                    $ctext,
+                    'aes-256-gcm',
+                    $apiV3Key,
+                    OPENSSL_RAW_DATA,
+                    $nonceStr,
+                    $authTag,
+                    $associatedData
+                );
+                return json_decode($res, true);
+            }
+            return null;
+        } catch (Exception $e) {
+            $this->getError($e);
+            return null;
+        }
+
+    }
+
     /**
      * 商家批量转账到零钱
      */