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added security check to avoid crash in counting comments, when a comment refers to no post (due to sync limits)

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This commit is contained in:
csoler 2020-11-13 23:28:49 +01:00
parent 24735c2235
commit c32f90f84d
1 changed files with 14 additions and 1 deletions
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15
retroshare-gui/src/gui/gxschannels/GxsChannelPostsModel.cpp
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@ -87,7 +87,20 @@ void updateCommentCounts( std::vector<RsGxsChannelPost>& posts, std::vector<RsGx
// now look into comments and increase the count
for(uint32_t i=0;i<comments.size();++i)
++posts[post_indices[comments[i].mMeta.mThreadId]].mCommentCount;
{
auto it = post_indices.find(comments[i].mMeta.mThreadId);
// This happens when because of sync periods, we receive
// the comments for a post, but not the post itself.
// In this case, the post the comment refers to is just not here.
// it->second>=posts.size() is impossible by construction, since post_indices
// is previously filled using posts ids.
if(it == post_indices.end())
continue;
++posts[it->second].mCommentCount;
}
}