public void InstallMod(byte[] Mod)
{
ModBinary modBinary = DispatchModBinary(Mod);
List <string> toBackup = new List <string>();
foreach (FileBinary fb in modBinary.files)
{
toBackup.Add(fb.Filename);
}
Directory.CreateDirectory(config.GameDir + "/BACKUP");
List <string> backUp = new List <string>();
foreach (string s in toBackup)
{
if (File.Exists(config.GameDir + s))
{
backUp.Add(s);
Directory.CreateDirectory(Path.GetDirectoryName(config.GameDir + "/BACKUP" + s));
File.Copy(config.GameDir + s, config.GameDir + "/BACKUP" + s, true);
}
}
if (File.Exists(config.GameDir + "/backup.zip"))
{
File.Delete(config.GameDir + "/backup.zip");
}
ZipFile.CreateFromDirectory(config.GameDir + "/BACKUP", config.GameDir + "/backup.zip");
foreach (string s in backUp)
{
File.Delete(config.GameDir + "/BACKUP" + s);
}
//todo ACTUALLY install mod
foreach (FileBinary fb in modBinary.files)
{
byte[] contents = new byte[] { };
if (File.Exists(config.GameDir + fb.Filename))
{
contents = File.ReadAllBytes(config.GameDir + fb.Filename);
}
else
{
int l = 0;
foreach (Block b in fb.blocks)
{
l += b.Length;
}
contents = new byte[l];
}
foreach (Block b in fb.blocks)
{
Overwrite(contents, b.Offset, b.Data);
}
File.WriteAllBytes(config.GameDir + fb.Filename, contents);
}
File.WriteAllText(config.GameDir + "/mod", "MOD");
config.ModInstalled = textBox3.Text;
}
private ModBinary DispatchModBinary(byte[] mod)
{
List <byte> listByte = mod.ToList();
int offset = 0;
ModBinary m = new ModBinary();
m.files = new List <FileBinary>();
while (true)
{
FileBinary fb = new FileBinary();
string filename = ReadString(mod, offset);
offset += filename.Length + 1;
fb.Filename = filename;
if (filename.StartsWith("/") && filename.Contains(".."))
{
throw new Exception("Unsecure mod filenames found.");
}
fb.Length = BitConverter.ToInt32(mod, offset);
offset += 4;
fb.blocks = new List <Block>();
byte[] Remainder = listByte.GetRange(offset, fb.Length).ToArray();
List <byte> listRem = Remainder.ToList();
int BlockOffset = 0;
while (true)
{
var block = new Block();
block.Offset = BitConverter.ToInt32(Remainder, BlockOffset);
BlockOffset += 4;
block.Length = BitConverter.ToInt16(Remainder, BlockOffset);
BlockOffset += 2;
block.Data = listRem.GetRange(BlockOffset, 1024).ToArray();
BlockOffset += 1024;
fb.blocks.Add(block);
if (BlockOffset >= Remainder.Length)
{
break;
}
}
offset += BlockOffset;
m.files.Add(fb);
if (offset >= mod.Length)
{
break;
}
}
return(m);
}