// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Xml.Linq;
using Microsoft.AspNetCore.DataProtection.XmlEncryption;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
 
namespace CustomEncryptorSample;
 
public class CustomXmlEncryptor : IXmlEncryptor
{
    private readonly ILogger _logger;
 
    public CustomXmlEncryptor(IServiceProvider services)
    {
        _logger = services.GetRequiredService<ILoggerFactory>().CreateLogger<CustomXmlEncryptor>();
    }
 
    public EncryptedXmlInfo Encrypt(XElement plaintextElement)
    {
        ArgumentNullException.ThrowIfNull(plaintextElement);
 
        _logger.LogInformation("Not encrypting key");
 
        var newElement = new XElement("unencryptedKey",
            new XComment(" This key is not encrypted. "),
            new XElement(plaintextElement));
        var encryptedTextElement = new EncryptedXmlInfo(newElement, typeof(CustomXmlDecryptor));
 
        return encryptedTextElement;
    }
}