public VirtualFileSystem(FtpConfig config, FtpUserGroup group, string rootpath = null)
{
_config = config;
_group = group;
if (!string.IsNullOrEmpty(rootpath))
{
_rootPath = rootpath;
}
else if (!string.IsNullOrEmpty(group.HomeDir))
{
_rootPath = group.HomeDir;
}
else
{
_rootPath = config.HomeDir;
}
_rootDirectory = new VDirectory(null, new FilePermission("r-xr-xr-x"), _rootPath, "");
_currentDirectory = _rootDirectory;
_currentDirectory.Refresh();
AddGroupLinks(); //FIXED:应在刷新后加入链接
_currentDirectory.Refresh();
SetPermission(_currentDirectory, true);
}
/// <summary>
/// 切换当前目录
/// </summary>
/// <param name="vPath">虚拟路径</param>
/// <param name="createDirIfNotExists">目录不存在时，是否创建目录</param> //MARK: WARNING: may cause Security Issue!
/// <returns></returns>
public bool ChangeCurrentDirectory(string vPath, bool createDirIfNotExists = false)
{
string pre = VPath.NormalizeFilename(vPath, true);
if (pre == "..")
{
_currentDirectory = _currentDirectory.ParentDirectory;
}
else if (pre == "/") //FIXED:
{
_currentDirectory = _rootDirectory;
}
else
{
VDirectory v;
if (pre.StartsWith("/", StringComparison.OrdinalIgnoreCase)) //绝对虚拟路径
{
v = Get(pre, true) as VDirectory;
}
else //相对虚拟路径
{
v = _currentDirectory.SubFiles.Find((t) => t.IsDirectory && t.Name == pre) as VDirectory;
}
if (v == null)
{
if (!createDirIfNotExists)
{
return(false);
}
//ADDED:
FileError fileError = CreateDirectory(pre);
if (fileError == FileError.None)
{
var dir = Get(pre, true) as VDirectory;
if (dir != null)
{
v = dir;
}
else
{
return(false);
}
}
else
{
return(false);
}
}
_currentDirectory = v;
}
_currentDirectory.Refresh();
SetPermission(_currentDirectory, true);
return(true);
}