29 lines
974 B
C#
29 lines
974 B
C#
using System.ComponentModel.DataAnnotations;
|
|
using System.IO;
|
|
using System.Linq;
|
|
|
|
namespace Nitrox.Launcher.Models.Validators;
|
|
|
|
/// <summary>
|
|
/// Tests that the value is usable as file name (excluding validity as file path or file extension).
|
|
/// </summary>
|
|
public sealed class FileNameAttribute : TypedValidationAttribute<string>
|
|
{
|
|
internal static readonly char[] InvalidPathCharacters = Path.GetInvalidFileNameChars();
|
|
|
|
protected override ValidationResult IsValid(string value, ValidationContext context)
|
|
{
|
|
if (value == null)
|
|
{
|
|
return ValidationResult.Success;
|
|
}
|
|
int indexOfAny = value.IndexOfAny(InvalidPathCharacters);
|
|
if (indexOfAny > -1)
|
|
{
|
|
return new ValidationResult($"{context.DisplayName} must not contain '{value[indexOfAny]}'. All invalid characters: {string.Join(' ', InvalidPathCharacters.Where(c => c > 31))}");
|
|
}
|
|
|
|
return ValidationResult.Success;
|
|
}
|
|
}
|