private static void CorrectPluginMismatches(FetchPluginMetadataPacket mdPacket,
ref PluginActionPacket pluginActionPacket)
{
foreach (var remotePlugin in mdPacket.PluginList)
{
PluginAggregator.RemoteClientPlugin localPlugin = null;
try
{
localPlugin =
Globals.PluginAggregator.LoadedRemotePlugins.Find(
p => p.PluginGuid.Equals(remotePlugin.PluginGuid));
}
catch
{
}
// Client has a plugin we don't, remove it
if (localPlugin == null || !localPlugin.AssociatedServerPluginHost.Enabled)
{
pluginActionPacket.Actions.Add(new PluginActionPacket.PluginActionData
{
Action = PluginActionPacket.PluginAction.Remove,
PluginGuid = remotePlugin.PluginGuid,
IntegrityHash = new byte[32],
PluginData = new byte[] { 0 }
});
}
else if (!localPlugin.Hash.SequenceEquals(remotePlugin.IntegrityHash))
{
pluginActionPacket.Actions.Add(new PluginActionPacket.PluginActionData
{
Action = PluginActionPacket.PluginAction.Replace,
PluginGuid = remotePlugin.PluginGuid,
IntegrityHash = localPlugin.Hash,
PluginData = localPlugin.Data
});
}
}
}
public override void PacketReceived(IDataPacket packet, IChannel sender)
{
if (packet is FetchPluginMetadataPacket)
{
var retPacket = new FetchPluginMetadataPacket();
// Send empty list if there are no plugins
if (!File.Exists("plugins.blob"))
{
SendPacket(retPacket);
}
else
{
var blobReader = new PluginBlobReader("plugins.blob");
var md = blobReader.ReadMetadata();
blobReader.Dispose();
foreach (var plugin in md.PluginTable)
{
retPacket.PluginList.Add(new PluginIntegrityPair(plugin.Key, plugin.Value.Hash));
}
SendPacket(retPacket);
}
}
else if (packet is PluginActionPacket)
{
var actionPacket = packet as PluginActionPacket;
var blobWriter = new PluginBlobWriter("plugins.blob");
foreach (var action in actionPacket.Actions)
{
switch (action.Action)
{
case PluginActionPacket.PluginAction.Add:
blobWriter.AppendPlugin(new BlobClientPlugin
{
Data = action.PluginData,
Hash = action.IntegrityHash,
Size = action.PluginData.Length,
PluginGuid = action.PluginGuid
});
break;
case PluginActionPacket.PluginAction.Replace:
blobWriter.ReplacePlugin(action.PluginGuid, new BlobClientPlugin
{
Data = action.PluginData,
Hash = action.IntegrityHash,
Size = action.PluginData.Length,
PluginGuid = action.PluginGuid
});
break;
case PluginActionPacket.PluginAction.Remove:
blobWriter.RemovePlugin(action.PluginGuid);
break;
}
}
blobWriter.WriteBlob();
blobWriter.Dispose();
}
else if (packet is SynchronizationFinalizationPacket)
{
ActivatePlugins();
SendPacket(new SynchronizationFinalizationPacket());
}
}
