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add owner check to position packets

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This commit is contained in:
20dka
2022-11-04 23:39:11 +01:00
committed by Lion Kortlepel
parent 6ebfe5743c
commit 9acb6951d6
2 changed files with 15 additions and 11 deletions
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24
src/TServer.cpp
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@@ -212,9 +212,11 @@ void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uin
Network.SendToAll(LockedClient.get(), Packet, false, true);
return;
case 'Z': // position packet
PPSMonitor.IncrementInternalPPS();
Network.SendToAll(LockedClient.get(), Packet, false, false);
HandlePosition(*LockedClient, StringPacket);
if (HandlePosition(*LockedClient, StringPacket)){
Network.SendToAll(LockedClient.get(), Packet, false, false);
} else {
beammp_debugf("Invalid vehicle position packet received from '{}' ({}), ignoring it", LockedClient->GetName(), LockedClient->GetID());
}
default:
return;
}
@@ -433,10 +435,10 @@ void TServer::InsertClient(const std::shared_ptr<TClient>& NewClient) {
(void)mClients.insert(NewClient);
}
void TServer::HandlePosition(TClient& c, const std::string& Packet) {
bool TServer::HandlePosition(TClient& c, const std::string& Packet) {
if (Packet.size() < 3) {
// invalid packet
return;
return false;
}
// Zp:serverVehicleID:data
// Zp:0:data
@@ -444,13 +446,13 @@ void TServer::HandlePosition(TClient& c, const std::string& Packet) {
auto NameDataSep = withoutCode.find(':', 2);
if (NameDataSep == std::string::npos || NameDataSep < 2) {
// invalid packet
return;
return false;
}
// FIXME: ensure that -2 does what it should... it seems weird.
std::string ServerVehicleID = withoutCode.substr(2, NameDataSep - 2);
if (NameDataSep + 1 > withoutCode.size()) {
// invalid packet
return;
return false;
}
std::string Data = withoutCode.substr(NameDataSep + 1);
@@ -459,9 +461,11 @@ void TServer::HandlePosition(TClient& c, const std::string& Packet) {
if (MaybePidVid) {
int PID = -1;
int VID = -1;
// FIXME: check that the VID and PID are valid, so that we don't waste memory
std::tie(PID, VID) = MaybePidVid.value();
c.SetCarPosition(VID, Data);
if (PID == c.GetID()) {
c.SetCarPosition(VID, Data);
return true;
}
}
return false;
}