public void LoadFile(string fileName, Wz_Node node, bool useBaseWz)
{
Wz_File file;
try
{
file = new Wz_File(fileName, this);
file.TextEncoding = this.TextEncoding;
if (!this.encryption.encryption_detected)
{
this.encryption.DetectEncryption(file);
}
this.wz_files.Add(file);
node.Value = file;
file.Node = node;
file.FileStream.Position = 62;
file.GetDirTree(node, useBaseWz);
file.DetectWzType();
file.DetectWzVersion();
}
catch
{
throw;
}
}
public void LoadFileImg(string fileName, Wz_Node node)
{
Wz_File file;
try
{
file = new Wz_File(fileName, this);
file.TextEncoding = this.TextEncoding;
var imgNode = new Wz_Node(node.Text);
//跳过checksum检测
var img = new Wz_Image(node.Text, (int)file.FileStream.Length, 0, 0, 0, file)
{
OwnerNode = imgNode,
Offset = 0,
IsChecksumChecked = true
};
imgNode.Value = img;
node.Nodes.Add(imgNode);
this.wz_files.Add(file);
}
catch
{
throw;
}
}
public Wz_Png(int w, int h, int data_length, int form, int offs, Wz_File wz_f)
{
this.w = w;
this.h = h;
this.data_length = data_length;
this.form = form;
this.offs = offs;
this.wz_f = wz_f;
}
public Wz_Sound(int offset, int length, byte[] header, int ms, Wz_File wz_f)
{
this.offset = offset;
this.dataLength = length;
this.header = header;
this.ms = ms;
this.wz_f = wz_f;
TryDecryptHeader();
}
public Wz_Image(string name, int size, int cs32, uint hashOff, uint hashPos, Wz_File wz_f)
{
this.Name = name;
this.WzFile = wz_f;
this.Size = size;
this.Checksum = cs32;
this.HashedOffset = hashOff;
this.HashedOffsetPosition = hashPos;
this.Node = new Wz_ImageNode(name, this);
this.extr = false;
this.chec = false;
this.checEnc = false;
}
/// <summary>
/// 搜索node所属的wz_file，若搜索不到则返回null。
/// </summary>
/// <param Name="node">要搜索的wznode。</param>
/// <returns></returns>
public static Wz_File GetNodeWzFile(this Wz_Node node)
{
Wz_File wzfile = null;
Wz_Image wzImg = null;
while (node != null)
{
if ((wzfile = node.Value as Wz_File) != null)
{
break;
}
if ((wzImg = node.Value as Wz_Image) != null ||
(wzImg = (node as Wz_Image.Wz_ImageNode)?.Image) != null)
{
wzfile = wzImg.WzFile;
break;
}
node = node.ParentNode;
}
return(wzfile);
}
public void DetectEncryption(Wz_File f)
{
int old_off = (int)f.FileStream.Position;
f.FileStream.Position = 62;
if (f.ReadInt32() <= 0) //只有文件头 无法预判
{
return;
}
f.FileStream.Position++;
int len = (int)(-f.BReader.ReadSByte());
byte[] bytes = f.BReader.ReadBytes(len);
for (int i = 0; i < len; i++)
{
bytes[i] ^= (byte)(0xAA + i);
}
StringBuilder sb = new StringBuilder();
if (!this.encryption_detected)
{
//测试bms
sb.Clear();
for (int i = 0; i < len; i++)
{
sb.Append((char)(keys_bms[i] ^ bytes[i]));
}
if (IsLegalNodeName(sb.ToString()))
{
this.EncType = Wz_CryptoKeyType.BMS;
this.encryption_detected = true;
goto lbl_end;
}
//测试kms
sb.Clear();
for (int i = 0; i < len; i++)
{
sb.Append((char)(keys_kms[i] ^ bytes[i]));
}
if (IsLegalNodeName(sb.ToString()))
{
this.EncType = Wz_CryptoKeyType.KMS;
this.encryption_detected = true;
goto lbl_end;
}
//测试gms
sb.Clear();
for (int i = 0; i < len; i++)
{
sb.Append((char)(keys_gms[i] ^ bytes[i]));
}
if (IsLegalNodeName(sb.ToString()))
{
this.EncType = Wz_CryptoKeyType.GMS;
this.encryption_detected = true;
goto lbl_end;
}
}
lbl_end:
f.FileStream.Position = old_off;
}
