/// <summary>
/// Deserializes a <see cref="NetworkMessage"/> from a byte array as a server
/// </summary>
/// <param name="data"></param>
/// <param name="server"></param>
/// <returns></returns>
public static NetworkMessage CreateFromByteArray(byte[] data, bool server)
{
using (MemoryStream stream = new MemoryStream(data, false))
using (BinaryReader reader = new BinaryReader(stream))
{
(MessageType type, bool protobuf) = MessageTypeUtils.SplitMessage(reader.ReadUInt32());
Header header;
void ReadHeader()
{
ulong targetJob = reader.ReadUInt64();
ulong sourceJob = reader.ReadUInt64();
header = new Header(sourceJob);
}
if (protobuf)
{
int length = reader.ReadInt32();
CMsgProtoBufHeader protobufHeader;
using (MemoryStream protoStream = new MemoryStream(reader.ReadBytes(length)))
protobufHeader = Serializer.Deserialize <CMsgProtoBufHeader>(protoStream);
header = new ProtobufClientHeader(protobufHeader, server);
}
else if (stream.Length > 36 && reader.ReadByte() == 36 && reader.ReadUInt16() == 2)
{
// please never fail
ulong target = reader.ReadUInt64();
ulong source = reader.ReadUInt64();
if (reader.ReadByte() != 239)
{
stream.Seek(4, SeekOrigin.Begin);
ReadHeader();
}
else
{
ulong steamId = reader.ReadUInt64();
int sessionId = reader.ReadInt32();
header = new ClientHeader(source, steamId, sessionId); // if we somehow get here and it turns out we're not in the header anymore (and it was a normal header),
// tell me so I can shoot myself
}
}
else
{
stream.Seek(4, SeekOrigin.Begin);
ReadHeader();
}
return(new NetworkMessage(type, header, new ArraySegment <byte>(data, (int)stream.Position, (int)(stream.Length - stream.Position))));
}
}
/// <summary>
/// Creates a protobuf message with a protobuf header with the specified routing app ID
/// </summary>
/// <param name="type"></param>
/// <param name="body"></param>
/// <param name="appId"></param>
/// <returns></returns>
public static NetworkMessage CreateAppRoutedMessage(MessageType type, object body, long appId)
{
if (appId < uint.MinValue || appId > uint.MaxValue)
{
throw new ArgumentOutOfRangeException(nameof(appId));
}
var header = new ProtobufClientHeader((uint)appId, 0, null, SteamGid.Invalid, SteamId.Zero, 0);
return(new NetworkMessage(type, header, body));
}
/// <summary>
/// Creates a protobuf message with a protobuf header
/// </summary>
/// <param name="type"></param>
/// <param name="body"></param>
/// <returns></returns>
public static NetworkMessage CreateProtobufMessage(MessageType type, object body)
{
var head = new ProtobufClientHeader();
return(new NetworkMessage(type, head, body));
}
