LegacyPasswordWriter.cs

/*
 * NanoXLSX is a small .NET library to generate and read XLSX (Microsoft Excel 2007 or newer) files in an easy and native way
 * Copyright Raphael Stoeckli © 2026
 * This library is licensed under the MIT License.
 * You find a copy of the license in project folder or on: http://opensource.org/licenses/MIT
 */
 
using NanoXLSX.Interfaces;
using NanoXLSX.Interfaces.Writer;
using NanoXLSX.Registry;
using NanoXLSX.Registry.Attributes;
using NanoXLSX.Utils.Xml;
using System;
using System.Collections.Generic;
using static NanoXLSX.Enums.Password;
 
 
namespace NanoXLSX.Internal.Writers
{
    [NanoXlsxPlugIn(PlugInUUID = PlugInUUID.PasswordWriter)]
    public class LegacyPasswordWriter : IPasswordWriter
    {
        #region properties

        public PasswordType Type { get; private set; }

        public string PasswordHash { get; set; }

        public LegacyPasswordWriter(PasswordType type, string hash)
        {
            this.Type = type;
            this.PasswordHash = hash;
        }
 
        #endregion
        #region constructors
        public LegacyPasswordWriter()
        {
        }
 
        #endregion
        #region methods
        public void Init(PasswordType type, string passwordHash)
        {
            this.Type = type;
            this.PasswordHash = passwordHash;
        }

        public void CopyFrom(IPassword passwordInstance)
        {
            throw new NotImplementedException();
        }

        public bool PasswordIsSet()
        {
            return PasswordHash != null;
        }

        public string GetPassword()
        {
            throw new NotImplementedException();
        }

        public void SetPassword(string plainText)
        {
            throw new NotImplementedException();
        }

        public void UnsetPassword()
        {
            throw new NotImplementedException();
        }

        public IEnumerable<XmlAttribute> GetAttributes()
        {
            List<XmlAttribute> attributes = new List<XmlAttribute>();
            if (Type == PasswordType.WorksheetProtection)
            {
                attributes.Add(XmlAttribute.CreateAttribute("password", PasswordHash));
            }
            else
            {
                attributes.Add(XmlAttribute.CreateAttribute("workbookPassword", PasswordHash));
            }
            return attributes;
        }
        #endregion
    }
}