private void Init(Stream fs, WzKeyType k)
{
this.KeyType = k;
this.BaseOffset = 0;
this.BaseStream = fs;
this.DynamicRead = false;
this.StringPool = new SerializeStringPool(this);
}
/// <summary> </summary>
public static WzFile FromFile(string path, WzKeyType key = WzKeyType.None)
{
WzFile file = new WzFile(Path.GetFileName(path), key);
file.Stream = File.OpenRead(path);
file.Size = (int)file.Stream.Length;
return(file);
}
/// <summary> 使用指定的加密金鑰，將加密過的<see cref="WzImage"/>資料寫入<see cref="WzFile"/>中 </summary>
/// <param name="name"> <see cref="WzFile"/>的名子 </param>
/// <param name="key"> 加密金鑰 </param>
public WzFile ToWzFile(string name, WzKeyType key = WzKeyType.None)
{
WzFile file = new WzFile(name, key);
WzFileStream stream = new WzFileStream(file.Stream, file.KeyType);
this.Write(stream);
file.Size = (int)stream.Length;
stream.Dispose(false);
return(file);
}
/// <summary> </summary>
public static byte[] GenKey(WzKeyType key, int len)
{
if (len == 0)
{
return(null);
}
if (key == WzKeyType.G)
{
return(WzAES.GenKey(IVg, len));
}
if (key == WzKeyType.K)
{
return(WzAES.GenKey(IVk, len));
}
return(null);
}
/// <summary> </summary>
public static void XORKey(byte[] src, int len, WzKeyType type)
{
if (type == WzKeyType.None)
{
return;
}
if (type == WzKeyType.K)
{
if (WZUtil.GlobalKey_K == null || WZUtil.GlobalKey_K.Length < len)
{
WZUtil.GlobalKey_K = WzAES.GenKey(WzAES.IVk, len);
}
XORBuffer(src, WZUtil.GlobalKey_K, len);
}
else if (type == WzKeyType.G)
{
if (WZUtil.GlobalKey_G == null || WZUtil.GlobalKey_G.Length < len)
{
WZUtil.GlobalKey_G = WzAES.GenKey(WzAES.IVg, len);
}
XORBuffer(src, WZUtil.GlobalKey_G, len);
}
}
/// <summary> 從指定路徑建立<see cref="WzFileStream"/>並讀取資料 </summary>
public bool Open(string path, WzKeyType key)
{
this.Stream = new WzFileStream(path, FileMode.Open, key);
return(this.Read(this.Stream));
}
/// <summary> </summary>
public WzFile(string name, WzKeyType key = WzKeyType.None) : base(name, WzArchiveItemType.File)
{
this.KeyType = key;
this.Stream = new MemoryStream();
}
/// <summary> 使用指定的資料流和金鑰建立<see cref="WzFileStream"/>實體 </summary>
/// <param name="stream"> 檔案資料流 </param>
/// <param name="key"> 加密金鑰 </param>
public WzFileStream(Stream stream, WzKeyType key = WzKeyType.None)
{
this.Init(stream, key);
}
/// <summary> 使用指定的模式建立<see cref="WzFileStream"/>實體 </summary>
/// <param name="path"> 檔案路徑 </param>
/// <param name="mode"> 開啟模式 </param>
/// <param name="key"> 加密金鑰 </param>
public WzFileStream(string path, FileMode mode, WzKeyType key = WzKeyType.None)
{
this.Init(File.Open(path, mode), key);
}
