//驗證使用者
public bool ValidateUser()
{
string sqlcmd = @"SELECT * FROM Users WHERE Username = @Username AND Password = @Password";
using (SqlConnection conn = new SqlConnection(sqlconn))
{
using (SqlCommand cmd = new SqlCommand(sqlcmd, conn))
{
cmd.CommandType = CommandType.Text;
SqlParameter pUser = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUser = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUser.Direction = ParameterDirection.Input;
pUser.Value = Username;
cmd.Parameters.Add(pUser);
SqlParameter pPassword = new SqlParameter("@Password", SqlDbType.VarBinary, 32);
pPassword.Direction = ParameterDirection.Input;
pPassword.Value = IDo.HashPw(Password, GetRanNum(Username));
cmd.Parameters.Add(pPassword);
conn.Open();
SqlDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
return(true);
}
else
{
return(false);
}
}
}
}
//使用者更改密碼 清除資料庫驗證碼
public static bool UpdateUser(string Username, string nPassword)
{
string sqlcmd = @"UPDATE Users SET Password=@NewPW,RanNum=@NewRanNum,AuthCode=@AuthCode WHERE Username = @Username";
using (SqlConnection conn = new SqlConnection(sqlconn))
{
using (SqlCommand cmd = new SqlCommand(sqlcmd, conn))
{
cmd.CommandType = CommandType.Text;
SqlParameter pUsername = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUsername.Direction = ParameterDirection.Input;
pUsername.Value = Username;
cmd.Parameters.Add(pUsername);
SqlParameter pAuthCode = new SqlParameter("@AuthCode", SqlDbType.NVarChar, 8);
pAuthCode.Direction = ParameterDirection.Input;
pAuthCode.Value = String.Empty;
cmd.Parameters.Add(pAuthCode);
string RanNum = Guid.NewGuid().ToString("N");
SqlParameter pRannum = new SqlParameter("@NewRanNum", SqlDbType.NVarChar, 32);
pRannum.Direction = ParameterDirection.Input;
pRannum.Value = RanNum;
cmd.Parameters.Add(pRannum);
SqlParameter pNewPW = new SqlParameter("@NewPW", SqlDbType.VarBinary, 32);
pNewPW.Direction = ParameterDirection.Input;
pNewPW.Value = IDo.HashPw(nPassword, RanNum);//新雜湊
cmd.Parameters.Add(pNewPW);
conn.Open();
int n = (int)cmd.ExecuteNonQuery();
if (n != 0)
{
return(true);
}
else
{
return(false);
}
}
}
}
//寄送驗證碼
public static void SendAuthCode(string Username)
{
string authcode = IDo.GetNewPW();
using (SqlConnection conn = new SqlConnection(sqlconn))
{
string upacode = @"UPDATE Users SET AuthCode=@AuthCode WHERE Username = @Username";
using (SqlCommand cmd = new SqlCommand(upacode, conn))
{
cmd.CommandType = CommandType.Text;
SqlParameter pUsername = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUsername.Direction = ParameterDirection.Input;
pUsername.Value = Username;
cmd.Parameters.Add(pUsername);
SqlParameter pAuthCode = new SqlParameter("@AuthCode", SqlDbType.NVarChar, 8);
pAuthCode.Direction = ParameterDirection.Input;
pAuthCode.Value = authcode;
cmd.Parameters.Add(pAuthCode);
conn.Open();
cmd.ExecuteNonQuery();
}
string sqlcmd = @"SELECT @Email = Email FROM Users WHERE Username = @Username";
using (SqlCommand cmd = new SqlCommand(sqlcmd, conn))
{
cmd.CommandType = CommandType.Text;
SqlParameter pUser = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUser.Direction = ParameterDirection.Input;
pUser.Value = Username;
cmd.Parameters.Add(pUser);
SqlParameter getEmail = new SqlParameter("@Email", SqlDbType.NVarChar, 64);
getEmail.Direction = ParameterDirection.Output;
cmd.Parameters.Add(getEmail);
cmd.ExecuteScalar();
string myEmail = getEmail.Value.ToString();
IDo.SendEmail(myEmail, Username, authcode);
}
}
}
private void button1_Click(object sender, EventArgs e)
{
ClsMember user = new ClsMember();
user.Username = this.Usertext.Text;
user.Password = this.Pwordtext.Text;
if (IDo.IsValidEmail(this.Emailtext.Text))
{
user.Email = this.Emailtext.Text;
}
else
{
MessageBox.Show("Email 格式錯誤");
return;
}
try
{
user.CreateUser();
MessageBox.Show($"註冊成功");
}
catch (SqlException ex)
{
int n = ex.Number;
if (n == 2627)
{
MessageBox.Show("帳號重複", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
this.Usertext.Focus();
this.Usertext.SelectAll();
}
}
//新建使用者
public void CreateUser()
{
string sqlcmd = @"Insert into Users(Username,Password,Email,RanNum) Values(@Username,@Password,@Email,@RanNum) ";
using (SqlConnection conn = new SqlConnection(sqlconn))
{
using (SqlCommand cmd = new SqlCommand(sqlcmd, conn))
{
cmd.CommandType = CommandType.Text;
SqlParameter pUsername = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUsername.Direction = ParameterDirection.Input;
pUsername.Value = Username;
cmd.Parameters.Add(pUsername);
string RanNum = Guid.NewGuid().ToString("N");
SqlParameter pRannum = new SqlParameter("@RanNum", SqlDbType.NVarChar, 32);
pRannum.Direction = ParameterDirection.Input;
pRannum.Value = RanNum;
cmd.Parameters.Add(pRannum);
SqlParameter pPassword = new SqlParameter("@Password", SqlDbType.VarBinary, 32);
pPassword.Direction = ParameterDirection.Input;
pPassword.Value = IDo.HashPw(Password, RanNum);
cmd.Parameters.Add(pPassword);
SqlParameter pEmail = new SqlParameter("@Email", SqlDbType.NVarChar, 64);
pEmail.Direction = ParameterDirection.Input;
pEmail.Value = Email;
cmd.Parameters.Add(pEmail);
conn.Open();
cmd.ExecuteNonQuery();
}
}
}
//寄送新密碼給使用者
public static bool CheckUser(string Username, string Email)
{
string sqlcmd = @"SELECT * FROM Users WHERE Username = @Username AND Email = @Email";
using (SqlConnection conn = new SqlConnection(sqlconn))
{
using (SqlCommand cmd = new SqlCommand(sqlcmd, conn))
{
cmd.CommandType = CommandType.Text;
SqlParameter pUsername = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUsername.Direction = ParameterDirection.Input;
pUsername.Value = Username;
cmd.Parameters.Add(pUsername);
SqlParameter pEmail = new SqlParameter("@Email", SqlDbType.NVarChar, 64);
pEmail.Direction = ParameterDirection.Input;
pEmail.Value = Email;
cmd.Parameters.Add(pEmail);
conn.Open();
SqlDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
string NP = IDo.GetNewPW(); //創造新密碼
UpdatePW(Username, Email, NP); //更新密碼
IDo.SendEmail(Email, Username, NP); //寄email
return(true);
}
else
{
return(false);
}
}
}
}
//更新密碼跟雜湊用亂碼
/// <summary>
/// Username為註冊的帳號 , Email為註冊的Email, np 新密碼
/// </summary>
/// <param name="Username"></param>
/// <param name="Email"></param>
/// <param name="np"></param>
public static void UpdatePW(string Username, string Email, string np)
{
string sqlcmd = @"UPDATE Users SET Password=@NewPW,RanNum=@NewRanNum WHERE Username = @Username AND Email = @Email";
using (SqlConnection conn = new SqlConnection(sqlconn))
{
using (SqlCommand cmd = new SqlCommand(sqlcmd, conn))
{
cmd.CommandType = CommandType.Text;
SqlParameter pUsername = new SqlParameter("@Username", SqlDbType.NVarChar, 16);
pUsername.Direction = ParameterDirection.Input;
pUsername.Value = Username;
cmd.Parameters.Add(pUsername);
SqlParameter pEmail = new SqlParameter("@Email", SqlDbType.NVarChar, 64);
pEmail.Direction = ParameterDirection.Input;
pEmail.Value = Email;
cmd.Parameters.Add(pEmail);
string RanNum = Guid.NewGuid().ToString("N");
SqlParameter pRannum = new SqlParameter("@NewRanNum", SqlDbType.NVarChar, 32);
pRannum.Direction = ParameterDirection.Input;
pRannum.Value = RanNum;
cmd.Parameters.Add(pRannum);
SqlParameter pNewPW = new SqlParameter("@NewPW", SqlDbType.VarBinary, 32);
pNewPW.Direction = ParameterDirection.Input;
pNewPW.Value = IDo.HashPw(np, RanNum);//新雜湊
cmd.Parameters.Add(pNewPW);
conn.Open();
cmd.ExecuteNonQuery();
}
}
}
