public void LogIn(string userName, string password)
{
this.UserName = userName;
this.Password = RSACoder.Encryption(password);
using (SqlConnection dbConnection = new DBConnection().Connection)
{
string sqlQuery = string.Format("SELECT [id], [Haslo] FROM [Uzytkownicy] WHERE [Login] = '{0}' ", this.UserName);
using (SqlCommand command = new SqlCommand(sqlQuery, dbConnection))
{
SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
if (RSACoder.Decryption(reader.GetString(reader.GetOrdinal("Haslo"))) == RSACoder.Decryption(this.Password))
{
Instance.IsLoggedIn = true;
this.UserId = reader.GetInt32(reader.GetOrdinal("id"));
this.DateForReports = DateTime.Now;
}
}
}
}
if (Instance.IsLoggedIn)
{
this.GetUserPermissions();
}
}
public bool ChangePassword(string oldPassword, string newPassword)
{
bool canChange = false;
try
{
if (this.IsLoggedIn)
{
using (SqlConnection dbConnection = new DBConnection().Connection)
{
string sqlQuery = string.Format("SELECT [id], [Haslo] FROM [Uzytkownicy] WHERE [id] = '{0}' ", this.UserId);
using (SqlCommand cmdSelect = new SqlCommand(sqlQuery, dbConnection))
{
using (SqlDataReader reader = cmdSelect.ExecuteReader())
{
while (reader.Read())
{
if (RSACoder.Decryption(reader.GetString(reader.GetOrdinal("Haslo"))) == oldPassword)
{
canChange = true;
}
}
}
}
if (canChange)
{
sqlQuery = string.Format("UPDATE [Uzytkownicy] SET Haslo = '{0}' WHERE [id] = '{1}' ", RSACoder.Encryption(newPassword), this.UserId);
using (SqlCommand cmdUpdate = new SqlCommand(sqlQuery, dbConnection))
{
cmdUpdate.ExecuteNonQuery();
}
this.Password = RSACoder.Encryption(newPassword);
}
}
}
return(true);
}
catch (Exception ex)
{
return(false);
}
}
