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fix(Core/Server): Add bytebuffer exception handling to addoninfo read (#21500)

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This commit is contained in:
Takenbacon
2025-02-18 03:15:59 -08:00
committed by GitHub
parent 58d13e69e1
commit 854ebc8025
1 changed files with 48 additions and 41 deletions
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89
src/server/game/Server/WorldSession.cpp
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@@ -1147,57 +1147,64 @@ void WorldSession::ReadAddonsInfo(ByteBuffer& data)
if (uncompress(addonInfo.contents(), &uSize, data.contents() + pos, data.size() - pos) == Z_OK)
{
uint32 addonsCount;
addonInfo >> addonsCount; // addons count
for (uint32 i = 0; i < addonsCount; ++i)
try
{
std::string addonName;
uint8 enabled;
uint32 crc, unk1;
uint32 addonsCount;
addonInfo >> addonsCount; // addons count
// check next addon data format correctness
if (addonInfo.rpos() + 1 > addonInfo.size())
return;
addonInfo >> addonName;
addonInfo >> enabled >> crc >> unk1;
LOG_DEBUG("network", "ADDON: Name: {}, Enabled: 0x{:x}, CRC: 0x{:x}, Unknown2: 0x{:x}", addonName, enabled, crc, unk1);
AddonInfo addon(addonName, enabled, crc, 2, true);
SavedAddon const* savedAddon = AddonMgr::GetAddonInfo(addonName);
if (savedAddon)
for (uint32 i = 0; i < addonsCount; ++i)
{
bool match = true;
std::string addonName;
uint8 enabled;
uint32 crc, unk1;
if (addon.CRC != savedAddon->CRC)
match = false;
// check next addon data format correctness
if (addonInfo.rpos() + 1 > addonInfo.size())
return;
if (!match)
LOG_DEBUG("network", "ADDON: {} was known, but didn't match known CRC (0x{:x})!", addon.Name, savedAddon->CRC);
addonInfo >> addonName;
addonInfo >> enabled >> crc >> unk1;
LOG_DEBUG("network", "ADDON: Name: {}, Enabled: 0x{:x}, CRC: 0x{:x}, Unknown2: 0x{:x}", addonName, enabled, crc, unk1);
AddonInfo addon(addonName, enabled, crc, 2, true);
SavedAddon const* savedAddon = AddonMgr::GetAddonInfo(addonName);
if (savedAddon)
{
bool match = true;
if (addon.CRC != savedAddon->CRC)
match = false;
if (!match)
LOG_DEBUG("network", "ADDON: {} was known, but didn't match known CRC (0x{:x})!", addon.Name, savedAddon->CRC);
else
LOG_DEBUG("network", "ADDON: {} was known, CRC is correct (0x{:x})", addon.Name, savedAddon->CRC);
}
else
LOG_DEBUG("network", "ADDON: {} was known, CRC is correct (0x{:x})", addon.Name, savedAddon->CRC);
}
else
{
AddonMgr::SaveAddon(addon);
{
AddonMgr::SaveAddon(addon);
LOG_DEBUG("network", "ADDON: {} (0x{:x}) was not known, saving...", addon.Name, addon.CRC);
LOG_DEBUG("network", "ADDON: {} (0x{:x}) was not known, saving...", addon.Name, addon.CRC);
}
/// @todo: Find out when to not use CRC/pubkey, and other possible states.
m_addonsList.push_back(addon);
}
/// @todo: Find out when to not use CRC/pubkey, and other possible states.
m_addonsList.push_back(addon);
uint32 currentTime;
addonInfo >> currentTime;
LOG_DEBUG("network", "ADDON: CurrentTime: {}", currentTime);
if (addonInfo.rpos() != addonInfo.size())
LOG_DEBUG("network", "packet under-read!");
}
catch (ByteBufferException const& e)
{
LOG_ERROR("network", "Addon packet read error! {}", e.what());
}
uint32 currentTime;
addonInfo >> currentTime;
LOG_DEBUG("network", "ADDON: CurrentTime: {}", currentTime);
if (addonInfo.rpos() != addonInfo.size())
LOG_DEBUG("network", "packet under-read!");
}
else
LOG_ERROR("network", "Addon packet uncompress error!");