How to Encrypt and decrypt the state file in ASP.net core or blazor?

Question

Hello,

How to Encrypt and decrypt the state file in ASP.net core or blazor?

regards,

Answer 1

I mean session state. I want to encrypt the state.bin.
The app is serverside:

@code{

    public static IInstaApi _instaApi;

    public static string username { get; set; }
    public static string password { get; set; }

    public static string message = string.Empty;

    public static string ExceptionMessage = string.Empty;



    private static async Task StartInstagram()
    {
        var userSession = new UserSessionData
        {
            UserName = Enterance.username,
            Password = Enterance.password
        };

        var _instaApi = InstaApiBuilder.CreateBuilder()
    .SetUser(userSession)
    .UseLogger(new DebugLogger(LogLevel.All))
    .Build();


        const string stateFile = "state.bin";
        try
        {
            // load session file if exists
            if (File.Exists(stateFile))
            {
                //Console.WriteLine("message = "";");
                message = "Loading state from file";

                using (var fs = File.OpenRead(stateFile))
                {
                    //_instaApi.LoadStateDataFromStream(fs);
                    //_instaApi.LoadStateDataFromString(new StreamReader(fs).ReadToEnd());
                    ////////////////////////////////////////////////////////////////////

                    //_instaApi.LoadStateDataFromString(new StreamReader(fs).ReadToEnd());

                    _instaApi.LoadStateDataFromStream(fs);

                }
            }
        }

        catch (Exception e)
        {
            ExceptionMessage = $" error: {e}";
        }
        if (!_instaApi.IsUserAuthenticated)
        {
            // login


            message = $"Logging in as {userSession.UserName}";
            var logInResult = await _instaApi.LoginAsync();
            if (!logInResult.Succeeded)
            {
                //Console.WriteLine($"Unable to login: {logInResult.Info.Message}");
                message = $"Unable to login: {logInResult.Info.Message}";
                return;
            }
        }

        // save session in file
        var state = _instaApi.GetStateDataAsStream();

        using (var fileStream = File.Create(stateFile))
        {
            state.Seek(0, SeekOrigin.Begin);
            state.CopyTo(fileStream);
        }

    }



}

Answer 2

why are you saving state to a file in a blazor app? why not just a state variable? also are all blazor users the same or is this a single user site?

also in the sample::

https://github.com/ramtinak/InstagramApiSharp/blob/master/samples/Examples/Program.cs

at line 91 it says not to use if .net core

note: I've never used this library, but you appear to be off track

Answer 3

You mean where should I save it? can you describe more?
When I try to enter Instagram keep getting this message "loading state from file".
If you have seen the code, do you think which part is wrong?

Answer 4

why not just a state variable?

Can you explain this?
Do you mean in a cookie or session?

thanks,