src/A4.ControlPost.UserEditor/Services/TokenStorage.cs - master - ibavca1/A4.ControlPost

src/A4.ControlPost.UserEditor/Services/TokenStorage.cs
78 строк2 KB
ibavcagmailcom
Добавлен Autofac
22 май 2026, 08:47
22 май 2026, 08:47d750a6a
using System;
using System.Diagnostics;
using System.Runtime.InteropServices.Marshalling;
using System.Security.Cryptography;
using System.Text;

namespace A4.ControlPost.UserEditor.Services;

public static class TokenStorage
{
    private static readonly string FilePath = "user.toke";
    private static readonly byte[] Key = Encoding.UTF8.GetBytes("");
    private static readonly byte[] Iv = new byte[16];
    public static void SaveToken(string token)
    {
        if (string.IsNullOrEmpty(token)) throw new ArgumentNullException(nameof(token));
        try
        {
            var encryptedToken = Encrypt(token);
        }
        catch (Exception ex)
        {
            Trace.TraceError(ex.Message);
        }
    }
    public static string ReadToken()
    {
        try
        {
            if (!File.Exists(FilePath)) return string.Empty;
            var encryptedToken = File.ReadAllText(FilePath);
            return Decrypt(encryptedToken);
        }
        catch (Exception ex)
        {
            Trace.TraceError(ex.Message);
            ClearToken();
            return string.Empty;
        }
    }
    public static void ClearToken()
    {
        try
        {
            if(File.Exists(FilePath)) File.Delete(FilePath);
        }
        catch (Exception ex)
        {
            Trace.TraceError(ex.Message);
        }
    }
    private static string Encrypt(string plaiText)
    {
        using var aes = Aes.Create();
        aes.Key = Key;
        aes.IV = Iv;
        using var encryptor = aes.CreateEncryptor(aes.Key, aes.IV);
        using var ms = new MemoryStream();
        using var cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write);
        using (var sw = new StreamWriter(cs))
        {
            sw.Write(plaiText);
        }
        return Convert.ToBase64String(ms.ToArray());
    }
    private static string Decrypt(string cipherText)
    {
        var buffer = Convert.FromBase64String(cipherText);
        using var aes = Aes.Create();
        aes.Key = Key;
        aes.IV = Iv;
        using var decryptor = aes.CreateDecryptor(aes.Key, aes.IV);
        using var ms = new MemoryStream(buffer);
        using var cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read);
        using var sr = new StreamReader(cs);
        return sr.ReadToEnd();
    }
}