private void Find_Click(object sender, EventArgs e)
{
if (CK == 0)
{
string strQuery = " SELECT password " +
" FROM member " +
" WHERE id = @id " +
" AND question = @question " +
" AND answer = @answer; ";
try
{
using (MySqlConnection conn = new MySqlConnection(strConnString))
{
conn.Open();
//MetroMessageBox.Show(this, $"DB접속성공!!");
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = conn;
cmd.CommandText = strQuery;
MySqlParameter paramUserId = new MySqlParameter("@id", MySqlDbType.VarChar, 45);
paramUserId.Value = TxtID.Text.Trim(); // 공백 넣는 경우가 아주 많기때문에
cmd.Parameters.Add(paramUserId);
MySqlParameter paramQuestion = new MySqlParameter("@question", MySqlDbType.VarChar, 45);
paramQuestion.Value = CboQ.SelectedItem.ToString();
cmd.Parameters.Add(paramQuestion);
MySqlParameter paramAnswer = new MySqlParameter("@answer", MySqlDbType.VarChar, 45);
paramAnswer.Value = txtA.Text.Trim();
cmd.Parameters.Add(paramAnswer);
//MySqlDataReader reader = cmd.ExecuteReader();
//reader.Read();
cmd.ExecuteNonQuery();
string PW = cmd.ExecuteScalar().ToString();
if (string.IsNullOrEmpty(PW))
{
MessageBox.Show(this, "질문과 답을 정확히 입력하세요", "로그인실패",
MessageBoxButtons.OK, MessageBoxIcon.Error);
txtA.Text = string.Empty;
txtA.Focus();
return;
}
else
{
//var md5Hash = MD5.Create();
//var decryptoPassword = Commons.VerifyMd5Hash(md5Hash, PW);
//PW = decryptoPassword;
var res = MessageBox.Show("비번을 새로 입력", "새 비번", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (res == DialogResult.Yes)
{
id = TxtID.Text.Trim();
ChangePW();
}
//joinForm.FormClosed += new FormClosedEventHandler(childForm_Closed);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
else
{
if (string.IsNullOrEmpty(TxtID.Text) || string.IsNullOrEmpty(txtA.Text) || TxtID.Text != txtA.Text)
{
MessageBox.Show("새 비번을 정확히 적어주세요");
TxtID.Text = txtA.Text = null;
TxtID.Focus();
}
else
{
string strQuery = " UPDATE omok.member " +
" SET " +
" password = @password " +
" WHERE NO = " +
" (SELECT temp.NO FROM " +
" (SELECT NO " +
" FROM omok.member " +
" WHERE id= @id) as temp); ";
using (MySqlConnection conn = new MySqlConnection(strConnString))
{
conn.Open();
//MetroMessageBox.Show(this, $"DB접속성공!!");
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = conn;
cmd.CommandText = strQuery;
MySqlParameter paramPW = new MySqlParameter("@password", MySqlDbType.VarChar, 45);
string PW = TxtID.Text.Trim();
var md5Hash = MD5.Create();
var cryptoPassword = Commons.GetMd5Hash(md5Hash, TxtID.Text.Trim());
paramPW.Value = cryptoPassword;
MySqlParameter paramid = new MySqlParameter("@id", MySqlDbType.VarChar, 45);
paramid.Value = id;
cmd.Parameters.Add(paramid);
cmd.Parameters.Add(paramPW);
cmd.ExecuteNonQuery();
}
var res = MessageBox.Show("새 비번이 바뀌었습니다.", "비번", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (res == DialogResult.Yes)
{
Hide();
LoginForm loginForm = new LoginForm();
loginForm.Show();
}
}
}
}
private void InsertDataToDB()
{
string strQuery = "INSERT INTO member " +
" (id, password, question, answer) " +
" VALUES " +
" (@id, @password, @question, @answer); ";
if (txtPassword.Text.Trim() != txtPWCHECK.Text.Trim())
{
MessageBox.Show("비번이 같지 않습니다.");
txtPassword.Text = txtPWCHECK.Text = null;
txtPassword.Focus();
}
else if (string.IsNullOrEmpty(txtPassword.Text) ||
string.IsNullOrEmpty(txtPWCHECK.Text) || string.IsNullOrEmpty(Txt.Text))
{
MessageBox.Show("아이디 비번을 채워주세요.");
TxtID.Text = txtPassword.Text = txtPWCHECK.Text = null;
TxtID.Focus();
}
else if (CboQ.SelectedIndex == 0 || string.IsNullOrEmpty(txtA.Text))
{
MessageBox.Show("질문과 답을 해주세요.");
CboQ.Focus();
}
else
{
using (MySqlConnection conn = new MySqlConnection(strConnString))
{
conn.Open();
string PW;
MySqlCommand cmd = new MySqlCommand(strQuery, conn);
MySqlParameter paramId = new MySqlParameter("@id", MySqlDbType.VarChar, 45);
paramId.Value = TxtID.Text.Trim().ToString();
cmd.Parameters.Add(paramId);
MySqlParameter paramPassword = new MySqlParameter("@password", MySqlDbType.VarChar, 45);
PW = txtPassword.Text.Trim();
var md5Hash = MD5.Create();
var cryptoPassword = Commons.GetMd5Hash(md5Hash, txtPassword.Text.Trim());
paramPassword.Value = cryptoPassword;
cmd.Parameters.Add(paramPassword);
MySqlParameter paramQuestion = new MySqlParameter("@question", MySqlDbType.VarChar, 45);
paramQuestion.Value = CboQ.SelectedItem.ToString();
cmd.Parameters.Add(paramQuestion);
MySqlParameter paramAnswer = new MySqlParameter("@answer", MySqlDbType.VarChar, 45);
paramAnswer.Value = txtA.Text.Trim();
cmd.Parameters.Add(paramAnswer);
cmd.ExecuteNonQuery();
}
InsertDataToDB1();
MessageBox.Show("가입되었습니다.");
Hide();
LoginForm loginForm = new LoginForm();
loginForm.Show();
}
}
