1 files changed, 50 insertions, 9 deletions

diff --git a/protocols/Telegram/tdlib/td/td/telegram/DocumentsManager.hpp b/protocols/Telegram/tdlib/td/td/telegram/DocumentsManager.hpp
index c7b15700c1..494415cf77 100644
--- a/protocols/Telegram/tdlib/td/td/telegram/DocumentsManager.hpp
+++ b/protocols/Telegram/tdlib/td/td/telegram/DocumentsManager.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -20,22 +20,63 @@ template <class StorerT>
 void DocumentsManager::store_document(FileId file_id, StorerT &storer) const {
   const GeneralDocument *document = get_document(file_id);
   CHECK(document != nullptr);
-  store(document->file_name, storer);
-  store(document->mime_type, storer);
-  store(document->minithumbnail, storer);
-  store(document->thumbnail, storer);
+  bool has_file_name = !document->file_name.empty();
+  bool has_mime_type = !document->mime_type.empty();
+  bool has_minithumbnail = !document->minithumbnail.empty();
+  bool has_thumbnail = document->thumbnail.file_id.is_valid();
+  BEGIN_STORE_FLAGS();
+  STORE_FLAG(has_file_name);
+  STORE_FLAG(has_mime_type);
+  STORE_FLAG(has_minithumbnail);
+  STORE_FLAG(has_thumbnail);
+  END_STORE_FLAGS();
+  if (has_file_name) {
+    store(document->file_name, storer);
+  }
+  if (has_mime_type) {
+    store(document->mime_type, storer);
+  }
+  if (has_minithumbnail) {
+    store(document->minithumbnail, storer);
+  }
+  if (has_thumbnail) {
+    store(document->thumbnail, storer);
+  }
   store(file_id, storer);
 }
 
 template <class ParserT>
 FileId DocumentsManager::parse_document(ParserT &parser) {
   auto document = make_unique<GeneralDocument>();
-  parse(document->file_name, parser);
-  parse(document->mime_type, parser);
-  if (parser.version() >= static_cast<int32>(Version::SupportMinithumbnails)) {
+  bool has_file_name;
+  bool has_mime_type;
+  bool has_minithumbnail;
+  bool has_thumbnail;
+  if (parser.version() >= static_cast<int32>(Version::AddDocumentFlags)) {
+    BEGIN_PARSE_FLAGS();
+    PARSE_FLAG(has_file_name);
+    PARSE_FLAG(has_mime_type);
+    PARSE_FLAG(has_minithumbnail);
+    PARSE_FLAG(has_thumbnail);
+    END_PARSE_FLAGS();
+  } else {
+    has_file_name = true;
+    has_mime_type = true;
+    has_minithumbnail = parser.version() >= static_cast<int32>(Version::SupportMinithumbnails);
+    has_thumbnail = true;
+  }
+  if (has_file_name) {
+    parse(document->file_name, parser);
+  }
+  if (has_mime_type) {
+    parse(document->mime_type, parser);
+  }
+  if (has_minithumbnail) {
     parse(document->minithumbnail, parser);
   }
-  parse(document->thumbnail, parser);
+  if (has_thumbnail) {
+    parse(document->thumbnail, parser);
+  }
   parse(document->file_id, parser);
   if (parser.get_error() != nullptr || !document->file_id.is_valid()) {
     return FileId();