void ReadObjectCore()
{
KV1BinaryNodeType type = ReadNextNodeType();
// Keep reading values, until we reach the terminator
while (type != endMarker)
{
ReadValue(type);
type = ReadNextNodeType();
}
}
void ReadValue(KV1BinaryNodeType type)
{
var name = Encoding.UTF8.GetString(ReadNullTerminatedBytes());
KVValue value;
switch (type)
{
case KV1BinaryNodeType.ChildObject:
listener.OnObjectStart(name);
ReadObjectCore();
listener.OnObjectEnd();
return;
case KV1BinaryNodeType.String:
// UTF8 encoding is used for string values
value = new KVObjectValue <string>(Encoding.UTF8.GetString(ReadNullTerminatedBytes()), KVValueType.String);
break;
case KV1BinaryNodeType.WideString:
throw new NotSupportedException("Wide String is not supported, please create an issue saying where you found it: https://github.com/SteamDatabase/ValveKeyValue/issues");
case KV1BinaryNodeType.Int32:
case KV1BinaryNodeType.Color:
case KV1BinaryNodeType.Pointer:
value = new KVObjectValue <int>(reader.ReadInt32(), KVValueType.Int32);
break;
case KV1BinaryNodeType.UInt64:
value = new KVObjectValue <ulong>(reader.ReadUInt64(), KVValueType.UInt64);
break;
case KV1BinaryNodeType.Float32:
var floatValue = BitConverter.ToSingle(reader.ReadBytes(4), 0);
value = new KVObjectValue <float>(floatValue, KVValueType.FloatingPoint);
break;
case KV1BinaryNodeType.ProbablyBinary:
throw new NotSupportedException("Hit kv type 9, please create an issue saying where you found it: https://github.com/SteamDatabase/ValveKeyValue/issues");
case KV1BinaryNodeType.Int64:
value = new KVObjectValue <long>(reader.ReadInt64(), KVValueType.Int64);
break;
default:
throw new ArgumentOutOfRangeException(nameof(type), type, "Unhandled binary node type.");
}
listener.OnKeyValuePair(name, value);
}
void ReadValue(string name, KV1BinaryNodeType type)
{
KVValue value;
switch (type)
{
case KV1BinaryNodeType.ChildObject:
{
listener.OnObjectStart(name);
do
{
ReadObjectCore();
}while (PeekNextNodeType() != KV1BinaryNodeType.End);
listener.OnObjectEnd();
return;
}
case KV1BinaryNodeType.String:
value = new KVObjectValue <string>(ReadNullTerminatedString(), KVValueType.String);
break;
case KV1BinaryNodeType.WideString:
throw new NotSupportedException("Wide String is not supported.");
case KV1BinaryNodeType.Int32:
case KV1BinaryNodeType.Color:
case KV1BinaryNodeType.Pointer:
value = new KVObjectValue <int>(reader.ReadInt32(), KVValueType.Int32);
break;
case KV1BinaryNodeType.UInt64:
value = new KVObjectValue <ulong>(reader.ReadUInt64(), KVValueType.UInt64);
break;
case KV1BinaryNodeType.Float32:
var floatValue = BitConverter.ToSingle(reader.ReadBytes(4), 0);
value = new KVObjectValue <float>(floatValue, KVValueType.FloatingPoint);
break;
case KV1BinaryNodeType.Int64:
value = new KVObjectValue <long>(reader.ReadInt64(), KVValueType.Int64);
break;
default:
throw new ArgumentOutOfRangeException(nameof(type));
}
listener.OnKeyValuePair(name, value);
}
void ReadValue(KV1BinaryNodeType type)
{
var name = Encoding.UTF8.GetString(ReadNullTerminatedBytes());
KVValue value;
switch (type)
{
case KV1BinaryNodeType.ChildObject:
listener.OnObjectStart(name);
ReadObjectCore();
listener.OnObjectEnd();
return;
case KV1BinaryNodeType.String:
// UTF8 encoding is used for string values
value = new KVObjectValue <string>(Encoding.UTF8.GetString(ReadNullTerminatedBytes()), KVValueType.String);
break;
case KV1BinaryNodeType.WideString:
throw new NotSupportedException("Wide String is not supported.");
case KV1BinaryNodeType.Int32:
case KV1BinaryNodeType.Color:
case KV1BinaryNodeType.Pointer:
value = new KVObjectValue <int>(reader.ReadInt32(), KVValueType.Int32);
break;
case KV1BinaryNodeType.UInt64:
value = new KVObjectValue <ulong>(reader.ReadUInt64(), KVValueType.UInt64);
break;
case KV1BinaryNodeType.Float32:
var floatValue = BitConverter.ToSingle(reader.ReadBytes(4), 0);
value = new KVObjectValue <float>(floatValue, KVValueType.FloatingPoint);
break;
case KV1BinaryNodeType.Int64:
value = new KVObjectValue <long>(reader.ReadInt64(), KVValueType.Int64);
break;
default:
throw new ArgumentOutOfRangeException(nameof(type));
}
listener.OnKeyValuePair(name, value);
}
void DetectMagicHeader()
{
if (stream.Length - stream.Position < 8)
{
return;
}
if (reader.ReadUInt32() == BinaryMagicHeader)
{
stream.Position += 4; // Skip crc32
// There is likely to reason to handle this separately
// as the types do not conflict between Steam or Dota 2
endMarker = KV1BinaryNodeType.AlternateEnd;
}
else
{
stream.Position -= 4; // Go back as we did not detect the header
}
}
void Write(KV1BinaryNodeType nodeType)
{
writer.Write((byte)nodeType);
}
