/// <summary>
/// Open a wz file from a file on the disk
/// </summary>
/// <param name="filePath">Path to the wz file</param>
public WzFile(string filePath, WzMapleVersion version)
{
Name = Path.GetFileName(filePath);
FilePath = filePath;
FileVersion = -1;
MapleVersion = version;
if (version == WzMapleVersion.GetFromZlz)
{
var zlzStream = File.OpenRead(Path.Combine(Path.GetDirectoryName(filePath), "ZLZ.dll"));
_wzIv = WzKeyGenerator.GetIvFromZlz(zlzStream);
zlzStream.Close();
}
else
{
{
_wzIv = WzTool.GetIvByMapleVersion(version);
}
}
}
internal void ParseMainWzDirectory(WzFile parentFile = null)
{
if (mPath == null)
{
Console.WriteLine("[Error] Path is null");
return;
}
byte[] key = WzKeyGenerator.GenerateWzKey(mWzIv);
mReader = new WzBinaryReader(File.Open(mPath, FileMode.Open, FileAccess.Read, FileShare.Read), key, true);
Header = new WzHeader {
Ident = mReader.ReadString(4), FSize = mReader.ReadUInt64(), FStart = mReader.ReadUInt32(), Copyright = mReader.ReadNullTerminatedString()
};
int bytesToRead = (int)(Header.FStart - mReader.BaseStream.Position);
if (bytesToRead < 0)
{
throw new Exception("Unable to parse WZ file header");
}
mReader.ReadBytes(bytesToRead);
mReader.Header = Header;
mVersion = mReader.ReadInt16();
if (mFileVersion == -1)
{
for (int j = 0; j < short.MaxValue; j++)
{
mFileVersion = (short)j;
if (parentFile != null)
{
mFileVersion = parentFile.mFileVersion;
}
mVersionHash = GetVersionHash(mVersion, mFileVersion);
if (mVersionHash == 0)
{
continue;
}
mReader.Hash = mVersionHash;
long position = mReader.BaseStream.Position;
WzDirectory testDirectory;
try {
testDirectory = new WzDirectory(mReader, mName, mVersionHash, mWzIv);
testDirectory.ParseDirectory();
} catch {
mReader.BaseStream.Position = position;
continue;
}
foreach (WzImage s in testDirectory.GetChildImages())
{
if (s.Name.IndexOfAny(Path.GetInvalidFileNameChars()) >= 0)
{
testDirectory.Dispose();
throw new Exception("Invalid file names were detected. An invalid encryption may have been used.");
}
}
WzImage testImage = testDirectory.GetChildImages()[0];
try {
mReader.BaseStream.Position = testImage.Offset;
byte checkByte = mReader.ReadByte();
mReader.BaseStream.Position = position;
testDirectory.Dispose();
switch (checkByte)
{
case 0x73:
case 0x1b: {
mHash = mVersionHash;
ParseDirectory(parentFile);
return;
}
}
mReader.BaseStream.Position = position;
} catch {
mReader.BaseStream.Position = position;
}
}
throw new Exception("Error with game version hash : The specified game version is incorrect and WzLib was unable to determine the version itself");
}
mVersionHash = GetVersionHash(mVersion, mFileVersion);
mReader.Hash = mVersionHash;
mHash = mVersionHash;
ParseDirectory(parentFile);
}
/// <summary>
/// Creates a WzStringProperty with the specified name and value
/// </summary>
/// <param name="name">The name of the property</param>
/// <param name="value">The value of the property</param>
public WzLuaProperty(string name, byte[] encryptedBytes)
{
this.name = name;
this.encryptedBytes = encryptedBytes;
this.WzKey = WzKeyGenerator.GenerateWzKey(USE_IV_KEY);
}
