private void toolStripButton2_Click(object sender, EventArgs e)
{
try
{
aes crypto = new aes();
message = crypto.AESsifrele(txt_message.Text);
byteCount = Encoding.ASCII.GetByteCount(message);
sendData = new byte[byteCount];
sendData = Encoding.ASCII.GetBytes(message);
stream = client.GetStream();
stream.Write(sendData, 0, sendData.Length);
listBox_sending.Items.Add("Sent Message: " + crypto.AESsifre_Coz(message));
towho = comboBox_towho.Text;
byteCount = Encoding.ASCII.GetByteCount(towho);
sendData = new byte[byteCount];
sendData = Encoding.ASCII.GetBytes(towho);
stream = client.GetStream();
stream.Write(sendData, 0, sendData.Length);
}
catch (System.NullReferenceException)
{
MessageBox.Show("connection not installised");
}
}
private void timer1_Tick(object sender, EventArgs e)
{
sayac++;
if (sayac % 3 == 0)
{
aes crypto = new aes();
MySqlConnection conn;
String constring = "Server=192.168.137.10;Port=3306;Username=ozi;Password=12345;Database=users;";
conn = new MySqlConnection(constring);
conn.Open();
string y;
string x = username;
MySqlCommand cmd = new MySqlCommand("select * from messages where towho=@x", conn);
cmd.Parameters.Add("x", username);
MySqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
listbox_messages.Items.Clear();
listbox_messages.Items.Add("Latest Message: " + crypto.AESsifre_Coz(reader["message"].ToString()));
id_user = reader["id_user"].ToString();
}
conn.Close();
conn.Open();
cmd = new MySqlCommand("select * from user where id=@y", conn);
cmd.Parameters.Add("y", id_user);
reader = cmd.ExecuteReader();
while (reader.Read())
{
listbox_messages.Items.Add("From : " + reader["name"].ToString());
}
conn.Close();
}
}
public void btn_login_Click(object sender, EventArgs e)
{
username = comboBox_username.Text;
password = txt_password.Text;
byteCount = Encoding.ASCII.GetByteCount(username);
sendData = new byte[byteCount];
sendData = Encoding.ASCII.GetBytes(username);
stream = client.GetStream();
stream.Write(sendData, 0, sendData.Length);
byteCount = Encoding.ASCII.GetByteCount(password);
sendData = new byte[byteCount];
sendData = Encoding.ASCII.GetBytes(password);
stream = client.GetStream();
stream.Write(sendData, 0, sendData.Length);
listbox_messages.Visible = true;
aes crypto = new aes();
TcpClient clientt = listener.AcceptTcpClient();
NetworkStream nwStream = clientt.GetStream();
int i = 2;
while (i > 0)
{
byte[] buffer = new byte[clientt.ReceiveBufferSize];
int bytesRead = nwStream.Read(buffer, 0, clientt.ReceiveBufferSize);
string dataReceived = Encoding.ASCII.GetString(buffer, 0, bytesRead);
nwStream.Write(buffer, 0, bytesRead);
int uzunluk = dataReceived.Length;
if (dataReceived == "wrong")
{
MessageBox.Show("wrong password");
this.Close();
}
if (uzunluk > 10)
{
sifrelimetin = crypto.AESsifre_Coz(dataReceived);
listbox_messages.Items.Add("Latest Message: " + sifrelimetin);
}
if (uzunluk < 10)
{
sifresizmetin = dataReceived;
listbox_messages.Items.Add("From: " + sifresizmetin);
}
i--;
timer1.Start();
}
pictureBox_member.Visible = false;
lbl_memberlogin.Visible = false;
lbl_sentbox.Visible = true;
lbl_inbox.Visible = true;
lbl_secure.Visible = true;
pictureBox_secure.Visible = true;
listBox_sending.Visible = true;
lbl_password.Visible = false;
txt_password.Visible = false;
lbl_username.Visible = false;
comboBox_username.Visible = false;
btn_login.Visible = false;
lbl_message.Visible = true;
txt_message.Visible = true;
lbl_towho.Visible = true;
comboBox_towho.Visible = true;
if (comboBox_username.Text == "ali")
{
comboBox_towho.Items.Add("veli");
comboBox_towho.Items.Add("ahmet");
comboBox_towho.Items.Add("hasan");
}
if (comboBox_username.Text == "veli")
{
comboBox_towho.Items.Add("ali");
comboBox_towho.Items.Add("ahmet");
comboBox_towho.Items.Add("hasan");
}
if (comboBox_username.Text == "ahmet")
{
comboBox_towho.Items.Add("ali");
comboBox_towho.Items.Add("veli");
comboBox_towho.Items.Add("hasan");
}
if (comboBox_username.Text == "hasan")
{
comboBox_towho.Items.Add("ali");
comboBox_towho.Items.Add("veli");
comboBox_towho.Items.Add("ahmet");
}
}
