update

app/core/wechat.py

@@ -271,6 +271,12 @@ class WeChatClient:
             dict: 解密后的数据
         """
         try:
+            # API v3密钥转换为32字节
+            key_bytes = self.api_v3_key.encode('utf-8')
+            if len(key_bytes) != 32:
+                print(f"API v3密钥长度不正确: {len(key_bytes)} bytes")
+                raise ValueError("API v3密钥必须是32字节")
+            
             # Base64解码密文和随机串
             ciphertext_bytes = base64.b64decode(ciphertext)
             nonce_bytes = base64.b64decode(nonce)
@@ -278,10 +284,14 @@ class WeChatClient:
             # 处理附加数据
             associated_data_bytes = associated_data.encode('utf-8') if associated_data else b''
             
-            # 使用 API v3 密钥进行解密
-            key_bytes = self.api_v3_key.encode('utf-8')
             aesgcm = AESGCM(key_bytes)
             
+            print("解密参数:")
+            print(f"密钥长度: {len(key_bytes)} bytes")
+            print(f"Nonce长度: {len(nonce_bytes)} bytes")
+            print(f"密文长度: {len(ciphertext_bytes)} bytes")
+            print(f"附加数据: {associated_data_bytes}")
+            
             # 解密数据
             decrypted_data = aesgcm.decrypt(
                 nonce_bytes,
@@ -289,12 +299,16 @@ class WeChatClient:
                 associated_data_bytes
             )
             
+            print(f"解密后的原始数据: {decrypted_data}")
             # 解析JSON数据
             return json.loads(decrypted_data)
             
         except Exception as e:
-            print(f"解密回调数据失败: {str(e)}")
-            raise Exception(f"解密回调数据失败: {str(e)}")
+            error_msg = f"解密回调数据失败: {str(e)}"
+            print(error_msg)
+            import traceback
+            print("详细错误信息:", traceback.format_exc())
+            raise Exception(error_msg)
 
     async def verify_payment_notify(self, request: Request) -> dict:
         """验证支付回调通知"""