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Unknown object headers will now crash the game with a copy of the previous object to be read

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This commit is contained in:
juanjp600
2017-12-21 20:26:33 -03:00
parent c593fdb7c6
commit 064c8da7e7
2 changed files with 47 additions and 2 deletions
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Barotrauma/BarotraumaClient/Source/Networking/GameClient.cs
+43 -1
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@@ -974,8 +974,14 @@ namespace Barotrauma.Networking
private void ReadIngameUpdate(NetIncomingMessage inc)
{
List<IServerSerializable> entities = new List<IServerSerializable>();
float sendingTime = inc.ReadFloat() - inc.SenderConnection.RemoteTimeOffset;
ServerNetObject? prevObjHeader = null;
long prevBitPos = 0;
long prevBytePos = 0;
ServerNetObject objHeader;
while ((objHeader = (ServerNetObject)inc.ReadByte()) != ServerNetObject.END_OF_MESSAGE)
{
@@ -1004,15 +1010,51 @@ namespace Barotrauma.Networking
break;
case ServerNetObject.ENTITY_EVENT:
case ServerNetObject.ENTITY_EVENT_INITIAL:
entityEventManager.Read(objHeader, inc, sendingTime);
entityEventManager.Read(objHeader, inc, sendingTime, entities);
break;
case ServerNetObject.CHAT_MESSAGE:
ChatMessage.ClientRead(inc);
break;
default:
DebugConsole.ThrowError("Error while reading update from server (unknown object header \""+objHeader+"\"!)");
if (prevObjHeader != null)
{
DebugConsole.ThrowError("Previous object type: " + prevObjHeader.ToString());
}
else
{
DebugConsole.ThrowError("Error occurred on the very first object!");
}
DebugConsole.ThrowError("Previous object was " + (inc.Position - prevBitPos) + " bits long (" + (inc.PositionInBytes - prevBytePos) + " bytes)");
if (prevObjHeader == ServerNetObject.ENTITY_EVENT || prevObjHeader == ServerNetObject.ENTITY_EVENT_INITIAL)
{
foreach (IServerSerializable ent in entities)
{
if (ent == null)
{
DebugConsole.ThrowError(" - NULL");
continue;
}
Entity e = ent as Entity;
DebugConsole.ThrowError(" - "+e.ToString());
}
}
DebugConsole.ThrowError("Writing object data to \"crashreport_object.bin\", please send this file to us at http://github.com/Regalis11/Barotrauma/issues");
FileStream fl = File.Open("crashreport_object.bin", FileMode.Create);
BinaryWriter sw = new BinaryWriter(fl);
sw.Write(inc.Data, (int)prevBytePos, (int)(inc.LengthBytes - prevBytePos));
sw.Close();
fl.Close();
throw new Exception("Error while reading update from server: please send us \"crashreport_object.bin\"!");
break;
}
prevObjHeader = objHeader;
prevBitPos = inc.Position;
prevBytePos = inc.PositionInBytes;
}
}