Check that there is at least one price and shipping option.

1 files changed, 6 insertions, 0 deletions

diff --git a/td/telegram/Payments.cpp b/td/telegram/Payments.cpp
index d7cecce43..013482153 100644
--- a/td/telegram/Payments.cpp
+++ b/td/telegram/Payments.cpp
@@ -1038,10 +1038,16 @@ void answer_shipping_query(Td *td, int64 shipping_query_id,
 
       prices.push_back(make_tl_object<telegram_api::labeledPrice>(std::move(price_part->label_), price_part->amount_));
     }
+    if (prices.empty()) {
+      return promise.set_error(400, "There must be at least one price");
+    }
 
     options.push_back(make_tl_object<telegram_api::shippingOption>(std::move(option->id_), std::move(option->title_),
                                                                    std::move(prices)));
   }
+  if (options.empty()) {
+    return promise.set_error(400, "There must be at least one shipping option");
+  }
 
   td->create_handler<SetBotShippingAnswerQuery>(std::move(promise))
       ->send(shipping_query_id, error_message, std::move(options));