protected void Page_Load(object sender, EventArgs e)
{
if (!(Session["Email"] != null && Session["AuthToken"] != null && Request.Cookies["AuthToken"] != null))
{
Response.Redirect("~/Login.aspx");
return;
}
if (!Session["AuthToken"].ToString().Equals(Request.Cookies["AuthToken"].Value))
{
Response.Redirect("~/Login.aspx");
return;
}
try
{
using (SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["MYDBConnection"].ConnectionString))
{
using (SqlCommand cmd = new SqlCommand("SELECT [FirstName], [LastName], [Email] FROM Users WHERE Email = @Email", con))
{
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("@Email", Session["Email"].ToString());
con.Open();
SqlDataReader user = cmd.ExecuteReader();
if (user != null)
{
user.Read();
tb_email.Text = user["Email"].ToString();
tb_fName.Text = user["FirstName"].ToString();
tb_lName.Text = user["LastName"].ToString();
}
}
}
}
catch (Exception ex)
{
throw ex;
}
if (UserUtils.AccountAgeMinute(Session["Email"].ToString()) >= 15)
{
showFeedback("You need to change your password after 15 minutes.");
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!(Session["Email"] != null && Session["AuthToken"] != null && Request.Cookies["AuthToken"] != null))
{
Response.Redirect("~/Login.aspx", false);
return;
}
if (!Session["AuthToken"].ToString().Equals(Request.Cookies["AuthToken"].Value))
{
Response.Redirect("~/Login.aspx", false);
return;
}
if (UserUtils.AccountAgeMinute(Session["Email"].ToString()) >= 15)
{
Response.Redirect("~/AccountSettings.aspx");
return;
}
// obtain the credit card information and decrypt
byte[] ccNo = null;
byte[] ccExpiry = null;
byte[] ccCVV = null;
// t-sql query string
string queryString = "SELECT [CCNo], [CCExpiry], [CCCVV], [IV], [Key] FROM dbo.[Users] WHERE Email = @Email;";
using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["MYDBConnection"].ConnectionString))
{
// Create the Command and Parameter objects.
SqlCommand command = new SqlCommand(queryString, connection);
command.Parameters.AddWithValue("@Email", Session["Email"].ToString());
// Open the connection in a try/catch block.
// Create and execute the DataReader, writing the result
// set to the console window.
try
{
connection.Open();
SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
IV = Convert.FromBase64String(reader["IV"].ToString());
Key = Convert.FromBase64String(reader["Key"].ToString());
ccNo = Convert.FromBase64String(reader["CCNo"].ToString());
ccExpiry = Convert.FromBase64String(reader["CCExpiry"].ToString());
ccCVV = Convert.FromBase64String(reader["CCCVV"].ToString());
}
reader.Close();
}
catch (Exception ex)
{
throw ex;
}
}
lbl_ccNo.Text = decryptData(ccNo);
lbl_ccExpiry.Text = decryptData(ccExpiry);
lbl_ccCVV.Text = decryptData(ccCVV);
}
protected void Change_Password(object sender, EventArgs e)
{
// validate inputs
if (!ValidateFields())
{
return;
}
if (UserUtils.AccountAgeMinute(Session["Email"].ToString()) <= 5)
{
showFeedback("You have previously changed your password, you may reset again after 5 minutes after previous reset.");
return;
}
string email = Session["email"].ToString();
string password = tb_curPassword.Text.Trim();
string newPassword = tb_newPassword.Text.Trim();
string pHash = null;
string pSalt = null;
string userId = null;
string pHashNew = null;
string queryString = "SELECT * FROM dbo.[Users] WHERE [Email] = @Email;";
using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["MYDBConnection"].ConnectionString))
{
// Create the Command and Parameter objects.
SqlCommand command = new SqlCommand(queryString, connection);
command.Parameters.AddWithValue("@Email", email);
// Open the connection in a try/catch block.
// Create and execute the DataReader, writing the result
// set to the console window.
try
{
connection.Open();
SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
pHash = reader["PasswordHash"].ToString();
pSalt = reader["PasswordSalt"].ToString();
userId = reader["Id"].ToString();
}
reader.Close();
}
catch (Exception ex)
{
throw ex;
}
}
// ensure
if (pHash != null && pSalt != null)
{
// ensure authentication before authorizing
if (Password.ComparePasswordHash(Password.GetPasswordHash(password, pSalt), pHash))
{
// get string hash of the new password to check and change if there are no existance of it
pHashNew = Convert.ToBase64String(Password.GetPasswordHash(newPassword, pSalt));
bool passwordHistory = false;
// checks in password history if password has been used before
// https://docs.microsoft.com/en-us/sql/t-sql/queries/select-order-by-clause-transact-sql?view=sql-server-ver15#a-specifying-integer-constants-for-offset-and-fetch-values
string qStr = "SELECT [Hash] FROM [dbo].[PasswordHistory] WHERE UserId = @UserId and Hash = @Hash ORDER BY CreatedOn DESC OFFSET 0 ROW FETCH first 2 ROWS ONLY;";
using (SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["MYDBConnection"].ConnectionString))
{
using (SqlDataAdapter sda = new SqlDataAdapter(qStr, con))
{
sda.SelectCommand.CommandType = CommandType.Text;
sda.SelectCommand.Parameters.AddWithValue("@UserId", userId);
sda.SelectCommand.Parameters.AddWithValue("@Hash", pHashNew);
DataSet da = new DataSet();
sda.Fill(da);
passwordHistory = (da.Tables[0].Rows.Count > 0);
}
}
if (passwordHistory)
{
showFeedback("Previously 2 old passwords cannot be used.");
return;
}
Password.UpdatePassword(userId, pHashNew);
Password.SavePasswordHashToHistory(userId, pHash);
showFeedback("Password has been updated.");
lbl_feedback.ForeColor = Color.Green;
}
else
{
showFeedback("Current password is invalid, please try again.");
return;
}
}
}
