bool SaveEntry(RpaEntry entry)
{
byte opcode = null == entry.Header ? TUPLE2 : TUPLE3;
SaveLong(entry.Offset);
SaveInt(entry.UnpackedSize);
if (null != entry.Header)
{
SaveString(entry.Header);
}
m_stream.WriteByte(opcode);
return(true);
}
public override void Create(Stream output, IEnumerable <Entry> list, ResourceOptions options,
EntryCallback callback)
{
var rpa_options = GetOptions <RpaOptions> (options);
int callback_count = 0;
var file_table = new Dictionary <PyString, ArrayList>();
long data_offset = 0x22;
output.Position = data_offset;
foreach (var entry in list)
{
if (null != callback)
{
callback(callback_count++, entry, arcStrings.MsgAddingFile);
}
string name = entry.Name.Replace(@"\", "/");
var rpa_entry = new RpaEntry {
Name = name
};
using (var file = File.OpenRead(entry.Name))
{
var size = file.Length;
if (size > uint.MaxValue)
{
throw new FileSizeException();
}
int header_size = (int)Math.Min(size, 0x10);
rpa_entry.Offset = output.Position ^ rpa_options.Key;
rpa_entry.Header = new byte[header_size];
rpa_entry.UnpackedSize = (uint)size ^ rpa_options.Key;
rpa_entry.Size = (uint)(size - header_size);
file.Read(rpa_entry.Header, 0, header_size);
file.CopyTo(output);
}
var py_name = new PyString(name);
if (file_table.ContainsKey(py_name))
{
file_table[py_name].Add(rpa_entry);
}
else
{
file_table[py_name] = new ArrayList {
rpa_entry
}
};
}
long index_pos = output.Position;
string signature = string.Format(CultureInfo.InvariantCulture, "RPA-3.0 {0:x16} {1:x8}\n",
index_pos, rpa_options.Key);
var header = Encoding.ASCII.GetBytes(signature);
if (header.Length > data_offset)
{
throw new ApplicationException("Signature serialization failed.");
}
if (null != callback)
{
callback(callback_count++, null, arcStrings.MsgWritingIndex);
}
using (var index = new ZLibStream(output, CompressionMode.Compress, CompressionLevel.Level9, true))
{
var pickle = new Pickle(index);
if (!pickle.Dump(file_table))
{
throw new ApplicationException("Archive index serialization failed.");
}
}
output.Position = 0;
output.Write(header, 0, header.Length);
}
}