using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace KaficApp.Logic
{
    static partial class PrijavaLogic
    {

        public static int autentifikacijaKorisnika(string korisnickoIme, string lozinka)
        {
            using (var db = new KaficDB())
            {
                var query = from korisnici in db.Korisniks orderby korisnici.ID_korisnik select korisnici;

                foreach (var korisnik in query.ToList<Korisnik>())
                {
                    if(korisnik.Username == korisnickoIme)
                    {
                        if(korisnik.Password == lozinka)
                        {
                            return korisnik.ID_tip_korisnika;
                        }
                    }
                }
                return 0;
            }
        }
    }
}


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace KaficApp.Logic
{
    public class Crypto
    {
        public static string sha256(string pw)
        {
            System.Security.Cryptography.SHA256Managed crypt = new System.Security.Cryptography.SHA256Managed();
            System.Text.StringBuilder hash = new System.Text.StringBuilder();
            byte[] crypto = crypt.ComputeHash(Encoding.UTF8.GetBytes(pw), 0, Encoding.UTF8.GetByteCount(pw));
            foreach (byte theByte in crypto)
            {
                hash.Append(theByte.ToString("x2"));
            }
            return hash.ToString();
        }
    }
}