/// <summary>
/// Reads file from given stream and returns it.
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static DataDogFile Read(Stream stream)
{
var result = new DataDogFile();
if (stream.Length < 40)
{
throw new ArgumentException("Not a data dog file.");
}
using (var br = new BinaryReader(stream))
{
var signature = Encoding.UTF8.GetString(br.ReadBytes(16));
var version = signature.Substring(9).Replace(" ", " ").Replace(" ", ".");
if (!signature.StartsWith("DDBINFILE"))
{
throw new ArgumentException("Incorrect header.");
}
var stringsOffset = br.ReadInt32();
var stringsLength = br.ReadInt32();
var dataSize = br.ReadInt32();
var typesLength = br.ReadInt32();
var fieldsLength = br.ReadInt32();
var listsLength = br.ReadInt32();
var typeDefinitions = Encoding.UTF8.GetString(br.ReadBytes(typesLength)).TrimEnd('\0');
var fieldDefinitions = Encoding.UTF8.GetString(br.ReadBytes(fieldsLength)).TrimEnd('\0');
var listDefinitions = Encoding.UTF8.GetString(br.ReadBytes(listsLength)).TrimEnd('\0');
var stringBlock = br.ReadBytes(stringsLength);
var data = br.ReadBytes(dataSize);
var dataDogInfo = Encoding.GetEncoding("EUC-KR").GetString(br.ReadBytes((int)(br.BaseStream.Length - br.BaseStream.Position))).TrimEnd('\0');
var fieldVarTypes = FindVarTypes(dataDogInfo);
result.DataDogInfo = dataDogInfo;
var typeMatches = TypesRegex.Matches(typeDefinitions);
foreach (Match match in typeMatches)
{
var name = match.Groups["name"].Value;
var size = Convert.ToInt32(match.Groups["size"].Value);
var strct = new DataTypeDefinition(name, size);
result.Types[name] = strct;
}
var fieldMatches = FieldsRegex.Matches(fieldDefinitions);
if (fieldMatches.Count != fieldDefinitions.Count(a => a == '|'))
{
throw new FormatException("Invalid number of fields.");
}
foreach (Match match in fieldMatches)
{
var typeName = match.Groups["typeName"].Value;
if (!result.Types.TryGetValue(typeName, out var type))
{
throw new TypeAccessException($"Type '{typeName}' not found for field.");
}
var fieldName = match.Groups["fieldName"].Value;
var offset = Convert.ToInt32(match.Groups["offset"].Value);
var size = Convert.ToInt32(match.Groups["size"].Value);
var typeStr = match.Groups["type"].Value;
var fieldReadType = GetReadType(typeStr);
var fullFieldName = (typeName + "." + fieldName).ToLowerInvariant();
if (!fieldVarTypes.TryGetValue(fullFieldName, out var varType))
{
throw new TypeAccessException($"Type not found for '{fullFieldName}'.");
}
var field = new DataFieldDefinition(fieldName, offset, fieldReadType, size, varType);
type.Fields[fieldName] = field;
}
using (var dataStream = new MemoryStream(data))
using (var br2 = new BinaryReader(dataStream))
{
var listMatches = ListRegex.Matches(listDefinitions);
var read = 0;
for (var i = 0; i < listMatches.Count; ++i)
{
var listMatch = listMatches[i];
var listName = listMatch.Groups["name"].Value;
var listTypeName = listMatch.Groups["typeName"].Value;
var listCount = Convert.ToInt32(listMatch.Groups["count"].Value);
if (!result.Types.TryGetValue(listTypeName, out var type))
{
throw new TypeAccessException($"Type '{listTypeName}' not found for data.");
}
var list = new DataObjectList(listName, type);
for (var j = 0; j < listCount; ++j)
{
var match = listMatches[++i];
var objName = match.Groups["name"].Value;
var typeName = match.Groups["typeName"].Value;
var count = Convert.ToInt32(match.Groups["count"].Value);
var offset = Convert.ToInt32(match.Groups["offset"].Value);
dataStream.Seek(offset, SeekOrigin.Begin);
var bytes = br2.ReadBytes(type.Size);
var obj = new DataObject(objName, type);
read += bytes.Length;
foreach (var field in type.Fields.Values.OrderBy(a => a.Offset))
{
var objField = new DataField(field.Name, field.VarType);
switch (field.VarType)
{
case DataVarType.Byte:
objField.Value = bytes[field.Offset];
break;
case DataVarType.Bool:
objField.Value = (bytes[field.Offset] != 0);
break;
case DataVarType.Integer:
objField.Value = BitConverter.ToInt32(bytes, field.Offset);
break;
case DataVarType.Color:
objField.Value = BitConverter.ToUInt32(bytes, field.Offset);
break;
case DataVarType.Float:
objField.Value = BitConverter.ToSingle(bytes, field.Offset);
break;
case DataVarType.String:
case DataVarType.Reference:
var stringOffset = BitConverter.ToInt32(bytes, field.Offset);
try
{
var nullIndex = Array.IndexOf(stringBlock, (byte)0, stringOffset);
var str = Encoding.GetEncoding("EUC-KR").GetString(stringBlock, stringOffset, nullIndex - stringOffset);
objField.Value = str;
}
catch (ArgumentOutOfRangeException)
{
Console.Write("Error: String not found.");
}
break;
default:
throw new InvalidDataException($"Unknown type '{field.VarType}'.");
}
obj.Fields[field.Name] = objField;
}
list.Objects.Add(obj);
}
result.Lists[list.Name] = list;
}
if (read != dataStream.Length)
{
throw new FormatException("Data wasn't read completely.");
}
}
}
return(result);
}
/// <summary>
/// Creates new instance.
/// </summary>
/// <param name="name"></param>
/// <param name="type"></param>
public DataObject(string name, DataTypeDefinition type)
{
this.Name = name;
this.Type = type;
}
