public FileTypeDescriptor(string tag, string description, int signature_offset, string ascii_signature)
{
this.Tag = tag;
this.Description = description;
this.SignatureOffset = signature_offset;
this.signature = ToolsBinary.RegularStringToByteArrayASCII(ascii_signature);
this.ascii_signature = ascii_signature;
this.IsHeaderType = true;
}
public FileTypeDescriptor(string tag, string description, int signature_offset, byte[] signature, string default_extension)
{
this.Tag = tag;
this.Description = description;
this.SignatureOffset = signature_offset;
this.signature = ToolsCollection.Copy(signature);
this.ascii_signature = ToolsBinary.ByteArrayToRegularString(signature);
this.IsHeaderType = true;
}
public FileTypeDescriptor(string tag, string description, int signature_offset, string ascii_signature, string default_extension)
{
this.Tag = tag;
this.Description = description;
this.SignatureOffset = signature_offset;
this.signature = ToolsBinary.RegularStringToByteArrayASCII(ascii_signature);
this.ascii_signature = ascii_signature;
this.IsHeaderType = true;
this.DefaultExtension = default_extension;
this.posible_extensions = new string[1];
this.posible_extensions[0] = default_extension;
}
private static IList <FileTypeDescriptor> GetDefaultDescriptors()
{
List <FileTypeDescriptor> file_type_descriptors = new List <FileTypeDescriptor>();
file_type_descriptors.Add(new FileTypeDescriptor(
"DICOM",
"Dicom file",
128,
"DICM"));
file_type_descriptors.Add(new FileTypeDescriptor(
"PNGIM",
"Portable Network Graphics image",
0,
ToolsBinary.HexStringToByteArray("89504E470D0A1A0A")));
file_type_descriptors.Add(new FileTypeDescriptor(
"TIFFL",
"Tagged Image File Format encoded in little endian format image",
0,
ToolsBinary.HexStringToByteArray("49492A00")));
file_type_descriptors.Add(new FileTypeDescriptor(
"TIFFB",
"Tagged Image File Format encoded in little big format image",
0,
ToolsBinary.HexStringToByteArray("4D4D002A")));
file_type_descriptors.Add(new FileTypeDescriptor(
"JPGIM",
"Joint Photographic Experts Group image",
0,
ToolsBinary.HexStringToByteArray("FFD8FFE0")));
file_type_descriptors.Add(new FileTypeDescriptor(
"PDFDO",
"Portable Document Format",
0,
ToolsBinary.HexStringToByteArray("25504446")));
file_type_descriptors.Add(new FileTypeDescriptor(
"GIF7A",
"Graphics Interchange Format 87a image",
0,
ToolsBinary.HexStringToByteArray("474946383761")));
file_type_descriptors.Add(new FileTypeDescriptor(
"GIF9A",
"Graphics Interchange Format 89a image",
0,
ToolsBinary.HexStringToByteArray("474946383961")));
file_type_descriptors.Add(new FileTypeDescriptor(
"MSODO",
"Microsoft Office document",
0,
ToolsBinary.HexStringToByteArray("D0CF11E0A1B11AE1")));
file_type_descriptors.Add(new FileTypeDescriptor(
"MSOEX",
"Excel spreadsheet subheader (MS Office)",
512,
ToolsBinary.HexStringToByteArray("0908100000060500")));
file_type_descriptors.Add(new FileTypeDescriptor(
"MSOXF",
"Microsoft Office Open XML Format ",
0,
ToolsBinary.HexStringToByteArray("504B030414000600")));
//Trailer: Look for 50 4B 05 06 (PK..) followed by 18 additional bytes at the end of the file.
return(file_type_descriptors);
}