static void Main(string[] args)
{
if (args.Length != 2)
{
Console.WriteLine("Args: <source> <dest>");
return;
}
string source = args[0];
string destination = args[1];
if (!File.Exists(source))
{
Console.WriteLine("Error: file not found: {0}", source);
return;
}
if (!Directory.Exists(destination))
{
Directory.CreateDirectory(destination);
}
// init the replay file
Replay replay = new Replay(source);
// handle the entries within the replay file
while (replay.ReadEntry())
{
Console.WriteLine(replay.PayloadEntry);
// write the payload out to disk
File.WriteAllBytes(string.Format(@"{0}\{1}-{2}-{3}.bin", destination, replay.PayloadHeader.GameId, replay.PayloadEntry.ID, replay.PayloadEntry.Type), replay.PayloadEntry.Data);
}
}
public ReplayPayloadEntry(Replay p_replay, FileStream p_stream, int p_payloadDataStartOffset)
{
using (BinaryReader r = new BinaryReader(p_stream, Encoding.UTF8, true))
{
m_id = r.ReadInt32();
m_type = r.ReadByte();
m_length = r.ReadInt32();
m_nextChunkId = r.ReadInt32();
m_offset = r.ReadInt32();
}
// seek to the entry's data location
p_stream.Seek(p_payloadDataStartOffset + m_offset, SeekOrigin.Begin);
// init the byte array to appropriate length
m_data = new byte[m_length];
// the entry data chunk
p_stream.Read(m_data, 0, m_length);
// store the decrypted data
m_data = GetDecryptedData(p_replay, m_data);
}
private byte[] GetDecryptedData(Replay p_replay, byte[] p_data)
{
// string represenation of the game id
string gameId = Convert.ToString(p_replay.PayloadHeader.GameId);
// obtaining the chunk encryption key
byte[] chunkEncryptionKey = DepadBytes(DecryptBytes(Encoding.UTF8.GetBytes(gameId), p_replay.PayloadHeader.EncryptionKey));
// obtaining the decrypted chunk
byte[] decryptedChunk = DepadBytes(DecryptBytes(chunkEncryptionKey, p_data));
return DecompressBytes(decryptedChunk);
}
