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fix a scenario in which apps send invalid handle and expect failure callback + call-result

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a 2024-11-01 23:53:39 +02:00
parent 7936cd6680
commit 266c4efab3
1 changed files with 16 additions and 3 deletions
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19
dll/steam_ugc.cpp
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@ -294,11 +294,24 @@ SteamAPICall_t Steam_UGC::SendQueryUGCRequest( UGCQueryHandle_t handle )
{
PRINT_DEBUG("%llu", handle);
std::lock_guard<std::recursive_mutex> lock(global_mutex);
if (handle == k_UGCQueryHandleInvalid) return k_uAPICallInvalid;
const auto trigger_failure = [handle, this](){
SteamUGCQueryCompleted_t data{};
data.m_handle = handle;
data.m_eResult = k_EResultFail;
data.m_unNumResultsReturned = 0;
data.m_unTotalMatchingResults = 0;
data.m_bCachedData = false;
auto ret = callback_results->addCallResult(data.k_iCallback, &data, sizeof(data));
callbacks->addCBResult(data.k_iCallback, &data, sizeof(data));
return ret;
};
if (handle == k_UGCQueryHandleInvalid) return trigger_failure();
auto request = std::find_if(ugc_queries.begin(), ugc_queries.end(), [&handle](struct UGC_query const& item) { return item.handle == handle; });
if (ugc_queries.end() == request)
return k_uAPICallInvalid;
if (ugc_queries.end() == request) return trigger_failure();
if (request->return_all_subscribed) {
request->results = std::set<PublishedFileId_t>(ugc_bridge->subbed_mods_itr_begin(), ugc_bridge->subbed_mods_itr_end());