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Fix possible exploit with mcoin exchange

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Melledy 2022-04-30 22:51:21 -07:00
parent 7b22b575b7
commit 66ccd30416
1 changed files with 4 additions and 3 deletions
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7
src/main/java/emu/grasscutter/server/packet/recv/HandlerMcoinExchangeHcoinReq.java
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@ -13,14 +13,15 @@ public class HandlerMcoinExchangeHcoinReq extends PacketHandler {
@Override @Override
public void handle(GameSession session, byte[] header, byte[] payload) throws Exception { public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
McoinExchangeHcoinReqOuterClass.McoinExchangeHcoinReq exchangeReq = McoinExchangeHcoinReqOuterClass.McoinExchangeHcoinReq.parseFrom(payload); McoinExchangeHcoinReqOuterClass.McoinExchangeHcoinReq exchangeReq = McoinExchangeHcoinReqOuterClass.McoinExchangeHcoinReq.parseFrom(payload);
if (session == null) {
return; if (session.getPlayer().getCrystals() < exchangeReq.getMCoinNum() && exchangeReq.getMCoinNum() == exchangeReq.getHCoinNum()) {
} else if (session.getPlayer().getCrystals() < exchangeReq.getMCoinNum()) {
return; return;
} }
session.getPlayer().setCrystals(session.getPlayer().getCrystals() - exchangeReq.getMCoinNum()); session.getPlayer().setCrystals(session.getPlayer().getCrystals() - exchangeReq.getMCoinNum());
session.getPlayer().setPrimogems(session.getPlayer().getPrimogems() + exchangeReq.getHCoinNum()); session.getPlayer().setPrimogems(session.getPlayer().getPrimogems() + exchangeReq.getHCoinNum());
session.getPlayer().save(); session.getPlayer().save();
session.send(new PacketMcoinExchangeHcoinRsp(session.getPlayer().getCrystals(), session.getPlayer().getPrimogems())); session.send(new PacketMcoinExchangeHcoinRsp(session.getPlayer().getCrystals(), session.getPlayer().getPrimogems()));
} }
} }