【ENH】参数为空做校验，避免签名的时候异常

Author: chengxin

src/push_socket/push_client_impl.cpp

@@ -40,7 +40,6 @@ void TIGER_API::PushClientImpl::connect()
 	// create a worker thread to perform asynchronous network connections
 	worker_thread_ = std::shared_ptr<std::thread>(new std::thread([this]
 	{
-		
 		socket_->connect();
 
 		LOG(INFO) << "io_service run on work thread";

src/push_socket/push_socket.cpp

@@ -208,6 +208,17 @@ void TIGER_API::PushSocket::close_session()
 
 void TIGER_API::PushSocket::send_authentication()
 {
+	if (client_config_.tiger_id.empty())
+	{
+		LOG(ERROR) << "tiger_id is empty";
+		return;
+	}
+	if (client_config_.private_key.empty())
+	{
+		LOG(ERROR) << "private_key is empty";
+		return;
+	}
+
 	//tiger_id sign by private_key
 	utility::string_t sign = Utils::get_sign(client_config_.private_key, client_config_.tiger_id);