private static byte[] Decrypt(byte[] data, int index)
{
byte keyNameSize = data[1];
if (keyNameSize == 0 || keyNameSize != 8)
{
throw new BLTEDecoderException("keyNameSize == 0 || keyNameSize != 8");
}
byte[] keyNameBytes = new byte[keyNameSize];
Array.Copy(data, 2, keyNameBytes, 0, keyNameSize);
ulong keyName = BitConverter.ToUInt64(keyNameBytes, 0);
byte IVSize = data[keyNameSize + 2];
if (IVSize != 4 || IVSize > 0x10)
{
throw new BLTEDecoderException("IVSize != 4 || IVSize > 0x10");
}
byte[] IVpart = new byte[IVSize];
Array.Copy(data, keyNameSize + 3, IVpart, 0, IVSize);
if (data.Length < IVSize + keyNameSize + 4)
{
throw new BLTEDecoderException("data.Length < IVSize + keyNameSize + 4");
}
int dataOffset = keyNameSize + IVSize + 3;
byte encType = data[dataOffset];
if (encType != ENCRYPTION_SALSA20 && encType != ENCRYPTION_ARC4) // 'S' or 'A'
{
throw new BLTEDecoderException("encType != 0x53 && encType != 0x41");
}
dataOffset++;
// expand to 8 bytes
byte[] IV = new byte[8];
Array.Copy(IVpart, IV, IVpart.Length);
// magic
for (int shift = 0, i = 0; i < sizeof(int); shift += 8, i++)
{
IV[i] ^= (byte)((index >> shift) & 0xFF);
}
byte[] key = KeyService.GetKey(keyName);
if (key == null)
{
throw new BLTEDecoderException("unknown keyname {0:X16}", keyName);
}
if (encType == ENCRYPTION_SALSA20)
{
ICryptoTransform decryptor = KeyService.SalsaInstance.CreateDecryptor(key, IV);
return(decryptor.TransformFinalBlock(data, dataOffset, data.Length - dataOffset));
}
else
{
// ARC4 ?
throw new BLTEDecoderException("encType A not implemented");
}
}
public async Task AnalyzeUnknownFiles(Action <int> progressCallback)
{
if (_casc == null)
{
return;
}
IProgress <int> progress = new Progress <int>(progressCallback);
await Task.Run(() =>
{
FileScanner scanner = new FileScanner(_casc, _root);
Dictionary <int, List <string> > idToName = new Dictionary <int, List <string> >();
if (_casc.Config.GameType == CASCGameType.WoW && AnalyzeSoundFiles)
{
if (_casc.FileExists("DBFilesClient\\SoundEntries.db2"))
{
using (Stream stream = _casc.OpenFile("DBFilesClient\\SoundEntries.db2"))
{
WDB2Reader se = new WDB2Reader(stream);
foreach (var row in se)
{
string name = row.Value.GetField <string>(2);
int type = row.Value.GetField <int>(1);
bool many = row.Value.GetField <int>(4) > 0;
for (int i = 3; i < 23; i++)
{
int id = row.Value.GetField <int>(i);
if (!idToName.ContainsKey(id))
{
idToName[id] = new List <string>();
}
idToName[id].Add("unknown\\sound\\" + name + (many ? "_" + (i - 2).ToString("D2") : "") + (type == 28 ? ".mp3" : ".ogg"));
}
}
}
}
if (_casc.FileExists(1237434 /*"DBFilesClient\\SoundKit.db2"*/) && _casc.FileExists(1237435 /*"DBFilesClient\\SoundKitEntry.db2"*/) && _casc.FileExists(1665033 /*"DBFilesClient\\SoundKitName.db2"*/))
{
using (Stream skStream = _casc.OpenFile(1237434))
using (Stream skeStream = _casc.OpenFile(1237435))
using (Stream sknStream = _casc.OpenFile(1665033))
{
Func <ulong, bool> keyCheckFunc = x => KeyService.GetKey(x) != null;
WDC3Reader sk = new WDC3Reader(skStream, keyCheckFunc);
WDC3Reader ske = new WDC3Reader(skeStream, keyCheckFunc);
WDC3Reader skn = new WDC3Reader(sknStream, keyCheckFunc);
Dictionary <int, List <int> > lookup = new Dictionary <int, List <int> >();
foreach (var row in ske)
{
int soundKitId = row.Value.GetField <int>(0);
if (!lookup.ContainsKey(soundKitId))
{
lookup[soundKitId] = new List <int>();
}
lookup[soundKitId].Add(row.Value.GetField <int>(1));
}
foreach (var row in sk)
{
WDC3Row sknRow = skn.GetRow(row.Key);
if (sknRow != null)
{
string name = sknRow.GetField <string>(0).Replace(':', '_').Replace("\"", "");
int type = row.Value.GetField <byte>(6);
if (!lookup.TryGetValue(row.Key, out List <int> ske_entries))
{
continue;
}
bool many = ske_entries.Count > 1;
int i = 0;
foreach (var fid in ske_entries)
{
if (!idToName.ContainsKey(fid))
{
idToName[fid] = new List <string>();
}
if (AddFileDataIdToSoundFiles)
{
idToName[fid].Add("unknown\\sound\\" + name + (many ? "_" + (i + 1).ToString("D2") : "") + "_" + fid + (type == 28 ? ".mp3" : ".ogg"));
}
else
{
idToName[fid].Add("unknown\\sound\\" + name + (many ? "_" + (i + 1).ToString("D2") : "") + (type == 28 ? ".mp3" : ".ogg"));
}
i++;
}
}
}
}
}
}
CASCFolder unknownFolder = _root.GetEntry("unknown") as CASCFolder;
if (unknownFolder == null)
{
return;
}
foreach (var kv in idToName)
{
foreach (var fn in kv.Value)
{
Logger.WriteLine($"{kv.Key};{fn}");
}
}
IEnumerable <CASCFile> files = CASCFolder.GetFiles(unknownFolder.Entries.Select(kv => kv.Value), null, true).ToList();
int numTotal = files.Count();
int numDone = 0;
WowRootHandler wowRoot = _casc.Root as WowRootHandler;
Jenkins96 Hasher = new Jenkins96();
char[] PathDelimiters = new char[] { '/', '\\' };
foreach (var unknownEntry in files)
{
CASCFile unknownFile = unknownEntry as CASCFile;
if (idToName.TryGetValue(wowRoot.GetFileDataIdByHash(unknownFile.Hash), out List <string> name))
{
if (name.Count == 1)
{
unknownFile.FullName = name[0];
}
else
{
unknownFolder.Entries.Remove(unknownFile.Name);
foreach (var file in name)
{
//Logger.WriteLine(file);
string[] parts = file.Split(PathDelimiters);
string entryName = parts[parts.Length - 1];
ulong filehash = unknownFile.Hash;
CASCFile entry = new CASCFile(filehash, file);
CASCFile.Files[filehash] = entry;
unknownFolder.Entries[entryName] = entry;
}
}
}
else
{
string ext = scanner.GetFileExtension(unknownFile);
unknownFile.FullName += ext;
if (ext == ".m2")
{
using (var m2file = _casc.OpenFile(unknownFile.Hash))
using (var br = new BinaryReader(m2file))
{
m2file.Position = 0x14;
int nameOffs = br.ReadInt32();
m2file.Position = nameOffs + 8; // + sizeof(MD21)
string m2name = br.ReadCString();
unknownFile.FullName = "unknown\\" + m2name + ".m2";
Logger.WriteLine($"{wowRoot.GetFileDataIdByHash(unknownFile.Hash)};{unknownFile.FullName}");
//m2file.Position = 0;
//while (m2file.Position != m2file.Length)
//{
// int chunkType = br.ReadInt32();
// int chunkSize = br.ReadInt32();
// if (chunkType == 0x44494641) // AFID
// {
// int count = chunkSize / 8;
// for (int i = 0; i < count; i++)
// {
// ushort animId = br.ReadUInt16();
// ushort subAnimId = br.ReadUInt16();
// int FileDataId = br.ReadInt32();
// if (FileDataId != 0)
// Logger.WriteLine($"{FileDataId};{wowRoot.GetFileDataIdByHash(unknownFile.Hash)}\\{name}\\{name}{animId:D4}-{subAnimId:D2}.anim");
// }
// break;
// }
// else
// {
// m2file.Position += chunkSize;
// }
//}
}
}
}
progress.Report((int)(++numDone / (float)numTotal * 100));
}
_casc.Root.Dump();
});
}