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More error checks in Item.ServerWrite

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This commit is contained in:
Joonas Rikkonen
2018-07-30 10:12:55 +03:00
parent 458c972580
commit 5233b51e18
1 changed files with 32 additions and 26 deletions
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58
Barotrauma/BarotraumaShared/Source/Items/Item.cs
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@@ -1282,9 +1282,9 @@ namespace Barotrauma
public void ServerWrite(NetBuffer msg, Client c, object[] extraData = null)
{
string errorMsg = "";
if (extraData == null || extraData.Length == 0 || !(extraData[0] is NetEntityEvent.Type))
{
string errorMsg = "";
if (extraData == null)
{
errorMsg = "Failed to write a network event for the item \"" + Name + "\" - event data was null.";
@@ -1310,32 +1310,24 @@ namespace Barotrauma
switch (eventType)
{
case NetEntityEvent.Type.ComponentState:
string componentErrorMsg = "";
if (extraData.Length < 2 || !(extraData[1] is int))
{
componentErrorMsg = "Failed to write a component state event for the item \"" + Name + "\" - component index not given.";
errorMsg = "Failed to write a component state event for the item \"" + Name + "\" - component index not given.";
break;
}
int componentIndex = (int)extraData[1];
if (componentIndex < 0 || componentIndex >= components.Count)
{
componentErrorMsg = "Failed to write a component state event for the item \"" + Name + "\" - component index out of range (" + componentIndex + ").";
errorMsg = "Failed to write a component state event for the item \"" + Name + "\" - component index out of range (" + componentIndex + ").";
break;
}
else if (!(components[componentIndex] is IServerSerializable))
{
componentErrorMsg = "Failed to write a component state event for the item \"" + Name + "\" - component \"" + components[componentIndex] + "\" is not server serializable.";
}
if (string.IsNullOrEmpty(componentErrorMsg))
{
msg.WriteRangedInteger(0, components.Count - 1, componentIndex);
(components[componentIndex] as IServerSerializable).ServerWrite(msg, c, extraData);
}
else
{
msg.Position = initialWritePos;
msg.WriteRangedInteger(0, Enum.GetValues(typeof(NetEntityEvent.Type)).Length - 1, (int)NetEntityEvent.Type.Invalid);
DebugConsole.Log(componentErrorMsg);
GameAnalyticsManager.AddErrorEventOnce("Item.ServerWrite:InvalidComponentData" + Name, GameAnalyticsSDK.Net.EGAErrorSeverity.Error, componentErrorMsg);
errorMsg = "Failed to write a component state event for the item \"" + Name + "\" - component \"" + components[componentIndex] + "\" is not server serializable.";
break;
}
msg.WriteRangedInteger(0, components.Count - 1, componentIndex);
(components[componentIndex] as IServerSerializable).ServerWrite(msg, c, extraData);
break;
case NetEntityEvent.Type.InventoryState:
ownInventory.ServerWrite(msg, c, extraData);
@@ -1359,19 +1351,29 @@ namespace Barotrauma
msg.Write(targetID);
break;
case NetEntityEvent.Type.ChangeProperty:
WritePropertyChange(msg, extraData);
break;
default:
try
{
//event type not valid for items - rewind the write position and write invalid event type
msg.Position = initialWritePos;
msg.WriteRangedInteger(0, Enum.GetValues(typeof(NetEntityEvent.Type)).Length - 1, (int)NetEntityEvent.Type.Invalid);
string errorMsg = "Failed to write a network event for the item \"" + Name + "\" - \"" + eventType + "\" is not a valid entity event type for items.";
DebugConsole.Log(errorMsg);
GameAnalyticsManager.AddErrorEventOnce("Item.ServerWrite:InvalidData" + Name, GameAnalyticsSDK.Net.EGAErrorSeverity.Error, errorMsg);
WritePropertyChange(msg, extraData);
}
catch (Exception e)
{
errorMsg = "Failed to write a ChangeProperty network event for the item \"" + Name + "\" (" + e.Message + ")";
}
break;
default:
errorMsg = "Failed to write a network event for the item \"" + Name + "\" - \"" + eventType + "\" is not a valid entity event type for items.";
break;
}
if (!string.IsNullOrEmpty(errorMsg))
{
//something went wrong - rewind the write position and write invalid event type to prevent creating an unreadable event
msg.Position = initialWritePos;
msg.WriteRangedInteger(0, Enum.GetValues(typeof(NetEntityEvent.Type)).Length - 1, (int)NetEntityEvent.Type.Invalid);
DebugConsole.Log(errorMsg);
GameAnalyticsManager.AddErrorEventOnce("Item.ServerWrite:" + errorMsg, GameAnalyticsSDK.Net.EGAErrorSeverity.Error, errorMsg);
}
}
public void ServerRead(ClientNetObject type, NetBuffer msg, Client c)
@@ -1503,6 +1505,10 @@ namespace Barotrauma
throw new System.NotImplementedException("Serializing item properties of the type \"" + value.GetType() + "\" not supported");
}
}
else
{
throw new ArgumentException("Failed to write propery value - property \"" + (property == null ? "null" : property.Name) + "\" is not serializable.");
}
}
private void ReadPropertyChange(NetBuffer msg)