static void Main(string[] args)
{
NetTcpBinding binding = new NetTcpBinding();
//binding.Security.Transport.ClientCredentialType = TcpClientCredentialType.Certificate;
string address = "net.tcp://localhost:5500/DataManagment";
int option = 0; // Promenljiva option u kojoj se skladisti izabrana opcija.
string opt = ""; // Promenljiva opt u kojoj se skladisti string reprezentacija odabrane opcije.
bool isOptValid = false; // Promenljiva isOptValid u kojoj se belezi da je izabrana opcija validna.
string privateKey = "burek"; // Kljuc za enkripciju i dekripciju podataka.
byte[] keyb = Encoding.ASCII.GetBytes(privateKey);
string clientCertCN = Formatter.ParseName(WindowsIdentity.GetCurrent().Name);
X509Certificate2 clientCert = CertificateManager.GetCertificateFromStorage(StoreName.My, StoreLocation.LocalMachine, clientCertCN);
if (clientCert != null)
{
AuthenticationService authService = new AuthenticationService();
Console.WriteLine("");
using (ClientProxy clp = new ClientProxy(binding, address))
{
while (option != 3)
{
Console.WriteLine("\t\t\t\t\t|=====================================|"); // Ispis glavnog menija.
Console.WriteLine("\t\t\t\t\t| MAIN MENU |");
Console.WriteLine("\t\t\t\t\t|-------------------------------------|");
Console.WriteLine("\t\t\t\t\t| |");
Console.WriteLine("\t\t\t\t\t| 1. Write |");
Console.WriteLine("\t\t\t\t\t| 2. Read |");
Console.WriteLine("\t\t\t\t\t| 3. Exit |");
Console.WriteLine("\t\t\t\t\t| |");
Console.WriteLine("\t\t\t\t\t|=====================================|\n\n");
do // Otkrivanje nevalidne vrednosti opcije.
{
Console.Write("Enter option number: ");
opt = Console.ReadLine();
isOptValid = int.TryParse(opt, out option);
if (isOptValid == false) // Slucaj kada odabrana opcija nije numericka vrednost.
{
Console.WriteLine("\n---------------------");
Console.WriteLine("Invalid option value.");
Console.WriteLine("---------------------\n");
}
else if (option < 1 || option > 3) // Odabrana opcija je van opsega. Odabir nepostojece opcije.
{
Console.WriteLine("\n----------------------------------");
Console.WriteLine("The entered option does not exist.");
Console.WriteLine("----------------------------------\n");
}
} while (isOptValid == false || option < 1 || option > 3);
switch (option)
{
case 1:
{
string id = ""; // Promenljiva id u kojoj se skladisti vrednost za ID elementa.
string name = ""; // Promenljiva name u kojoj se skladisti vrednost za ime elementa.
Console.WriteLine("\n=======================================================================================================================");
Console.WriteLine("\t\t\t\t\t\t\t WRITE"); // Naznaka korisniku da je program usao u odabranu opciju.
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------------\n");
do // ID mora da ima najmanje 4 karaktera.
{
Console.Write("Enter ID: "); // Unosenje i skladistenje ID-a elementa.
id = Console.ReadLine();
if (id.Length < 4)
{
Console.WriteLine("\n---------------------------------------");
Console.WriteLine("The ID must have at least 4 characters.");
Console.WriteLine("---------------------------------------\n");
}
} while (id.Length < 4);
do // Ime mora da ima najmanje 3 karaktera.
{
Console.Write("\nEnter name: "); // Unosenje i skladistenje imena elementa.
name = Console.ReadLine();
if (name.Length < 3)
{
Console.WriteLine("\n-----------------------------------------");
Console.WriteLine("The name must have at least 3 characters.");
Console.WriteLine("-----------------------------------------");
}
} while (name.Length < 3);
byte[] idB = Encoding.ASCII.GetBytes(id); // Enkodiranje ID-a i naziva elementa u niz byte-ova.
byte[] nameB = Encoding.ASCII.GetBytes(name);
byte[] idEnc = RC4.Encrypt(keyb, idB); // Enkriptovanje ID-a i naziva elementa.
byte[] nameEnc = RC4.Encrypt(keyb, nameB);
clp.Write(idEnc, nameEnc); // Prosledjivanje enkriptovanih podataka.
Console.WriteLine("\n-----------------------------------------------------------------------------------------------------------------------");
Console.WriteLine("\t\t\t\t The specified element has been sucessfully added.");
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------------");
Console.WriteLine("\n=======================================================================================================================\n\n"); // Naznaka korisniku da je zavrsen rad sa prvom opcijom.
break; // Zavrsetak prve opcije.
}
case 2: // Prikazivanje svih elemenata koji se trenutno nalaze u bazi podataka.
{
Console.WriteLine("\n=======================================================================================================================");
Console.WriteLine("\t\t\t\t\t\t\t READ");
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------------\n");
Dictionary <byte[], byte[]> dic = clp.Read(); // Poziva se metoda za citanje elemenata.
if (dic.Count == 0) // Ukoliko baza podataka ne postoji korisnik se obavestava o tome.
{
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------------");
Console.WriteLine("\t\t The data base does not exist. It will be created when an element is added.");
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------------\n");
}
else
{
foreach (KeyValuePair <byte[], byte[]> kvp in dic) // Ispis pronadjenih elemenata.
{
byte[] keyDecrBytes = RC4.Decrypt(keyb, kvp.Key);
byte[] valueDecrBytes = RC4.Decrypt(keyb, kvp.Value);
string idDecr = Encoding.ASCII.GetString(keyDecrBytes);
string valueDecr = Encoding.ASCII.GetString(valueDecrBytes);
Console.WriteLine("------------------------------");
Console.WriteLine("ID: {0}", idDecr);
Console.WriteLine("Name: {0}", valueDecr);
Console.WriteLine("------------------------------\n");
}
}
Console.WriteLine("=======================================================================================================================\n\n");
break;
}
case 3: // Izlazak iz programa.
{
clp.Close();
Console.WriteLine("\nPress any key to exit...");
Console.ReadLine();
break;
}
}
}
}
}
else
{
Console.WriteLine("Client authentication falied. No certificate provided. Client can not be started.\n");
Console.WriteLine("Press ENTER key to exit...");
Console.ReadLine();
}
}