public static FilePermissionSet FromString(string permissions)
{
var set = new FilePermissionSet();
permissions = permissions?.Trim() ?? "---";
if (permissions.Length != 3)
{
throw new ArgumentException("Permission set must be 3 characters long");
}
if (string.IsNullOrWhiteSpace(permissions))
{
return(set);
}
set.NumericValue = permissions
.ToLower()
.ToCharArray()
.Distinct()
.Sum(y =>
{
switch (y)
{
case 'r':
set._charVal[0] = 'r';
set.CanRead = true;
return(4);
case 'w':
set._charVal[1] = 'w';
set.CanWrite = true;
return(2);
case 'x':
set._charVal[2] = 'x';
set.CanExecute = true;
return(1);
default: return(0);
}
});
return(set);
}
public static FilePermissionCollection FromString(string permissions)
{
permissions = permissions?.Trim() ?? "---------";
var fp = new FilePermissionCollection();
if (permissions.Length != 9)
{
throw new ArgumentException("Permission string must be 9 characters long");
}
if (string.IsNullOrWhiteSpace(permissions))
{
return(new FilePermissionCollection());
}
fp.User = FilePermissionSet.FromString(permissions.Substring(0, 3));
fp.Group = FilePermissionSet.FromString(permissions.Substring(3, 3));
fp.Other = FilePermissionSet.FromString(permissions.Substring(6, 3));
return(fp);
}
internal FilePermissionCollection()
{
User = new FilePermissionSet();
Group = new FilePermissionSet();
Other = new FilePermissionSet();
}