From 40ae8b9fd50ad66826a0a56d60ccc9e10a173b23 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Mon, 25 Feb 2019 19:19:01 +0300
Subject: [PATCH] Disallow forwarding of local polls.

GitOrigin-RevId: a83397233c86ff791eda2c1cd39be77ee8488307
---
 td/telegram/MessageContent.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/td/telegram/MessageContent.cpp b/td/telegram/MessageContent.cpp
index 750c56e4..1b0edea1 100644
--- a/td/telegram/MessageContent.cpp
+++ b/td/telegram/MessageContent.cpp
@@ -2340,6 +2340,10 @@ bool can_forward_message_content(const MessageContent *content) {
     auto *text = static_cast<const MessageText *>(content);
     return !is_empty_string(text->text.text);  // text can't be empty in the new message
   }
+  if (content_type == MessageContentType::Poll) {
+    auto *poll = static_cast<const MessagePoll *>(content);
+    return !PollManager::is_local_poll_id(poll->poll_id);
+  }
 
   return !is_service_message_content(content_type) && content_type != MessageContentType::Unsupported &&
          content_type != MessageContentType::ExpiredPhoto && content_type != MessageContentType::ExpiredVideo;