/// <summary>
/// Parses a string in octal format to PathPermissions.
/// </summary>
/// <param name="s">Octal string to parse.</param>
/// <returns><see cref="PathPermissions"/>.</returns>
public static PathPermissions ParseOctalPermissions(string s)
{
if (s == null)
{
return(null);
}
if (s.Length != 4)
{
throw DataLakeErrors.PathPermissionsOctalInvalidLength(s);
}
var pathPermissions = new PathPermissions();
if (s[0] == '0')
{
pathPermissions.StickyBit = false;
}
else if (s[0] == '1')
{
pathPermissions.StickyBit = true;
}
else
{
throw DataLakeErrors.PathPermissionsOctalInvalidFirstDigit(s);
}
pathPermissions.Owner = PathAccessControlExtensions.ParseOctalRolePermissions(s[1]);
pathPermissions.Group = PathAccessControlExtensions.ParseOctalRolePermissions(s[2]);
pathPermissions.Other = PathAccessControlExtensions.ParseOctalRolePermissions(s[3]);
return(pathPermissions);
}
/// <summary>
/// Creates a new <see cref="PathAccessControl"/> instance for mocking.
/// </summary>
public static PathAccessControl PathAccessControl(
string owner,
string group,
PathPermissions permissions,
IList <PathAccessControlItem> acl)
=> new PathAccessControl()
{
Owner = owner,
Group = group,
Permissions = permissions,
AccessControlList = acl
};
/// <summary>
/// Parses a symbolic string to PathPermissions.
/// </summary>
/// <param name="s">String to parse.</param>
/// <returns><see cref="PathPermissions"/>.</returns>
public static PathPermissions ParseSymbolicPermissions(string s)
{
if (s == null)
{
return(null);
}
if (s.Length != 9 && s.Length != 10)
{
throw DataLakeErrors.PathPermissionsSymbolicInvalidLength(s);
}
var pathPermissions = new PathPermissions();
// Set sticky bit
if (char.ToLower(s[8], CultureInfo.InvariantCulture) == 't')
{
pathPermissions.StickyBit = true;
}
else
{
pathPermissions.StickyBit = false;
}
// Set extended info in ACL
if (s.Length == 10)
{
if (s[9] == '+')
{
pathPermissions.ExtendedAcls = true;
}
else
{
throw Errors.InvalidFormat(nameof(s));
}
}
else
{
pathPermissions.ExtendedAcls = false;
}
pathPermissions.Owner = PathAccessControlExtensions.ParseSymbolicRolePermissions(s.Substring(0, 3), allowStickyBit: false);
pathPermissions.Group = PathAccessControlExtensions.ParseSymbolicRolePermissions(s.Substring(3, 3), allowStickyBit: false);
pathPermissions.Other = PathAccessControlExtensions.ParseSymbolicRolePermissions(s.Substring(6, 3), allowStickyBit: true);
return(pathPermissions);
}