private void btnBackup_Click(object sender, EventArgs e)
{
//Check pw
if (txtPass.Text != "88")
{
MessageBox.Show("Pass sai");
return;
}
string backUpFileName = this.fileNameWithoutExt + ".bak";
string fullBackupPath = this.folderPath + backUpFileName;
string targetFile = folderPath + fileNameWithoutExt + ".Klib";
//Open Klib file----------------------------------------------
FileStream fs = File.OpenRead(targetFile);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
//Decrypt-------------------------------------------------------------------------------------
byte[] buffer1 = SuperKnuth.KnuthTools.DeHash(buffer);
//Save file----------------------------------------------------------------
File.WriteAllBytes(fullBackupPath, buffer1);
string sqlBackUp = string.Format(@"RESTORE DATABASE {0} FROM DISK = N'{1}' WITH FILE=1,
MOVE 'library_data_Data' TO '{2}\{0}.mdf',
MOVE 'library_data_Log' TO '{2}\{0}.ldf',
NOUNLOAD, STATS = 5;" , txtDB.Text, fullBackupPath, folderPath);
SqlConnection cn = new SqlConnection(DataProvider.GetSqlConnectionString());
SqlCommand cmdBkUp = new SqlCommand(sqlBackUp, cn);
try
{
cn.Open();
cmdBkUp.ExecuteNonQuery();
MessageBox.Show("Done");
this.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
File.Delete(fullBackupPath);
if (cn.State == ConnectionState.Open)
{
cn.Close();
}
}
}
public void BackupDatabase()
{
string backUpFileName = this.fileNameWithoutExt + ".bak";
string fullBackupPath = this.folderPath + backUpFileName;
string SQLBackUp = string.Format(@"BACKUP DATABASE {0} TO DISK = N'{1}'", dbName, fullBackupPath);
SqlConnection cn = new SqlConnection(DataProvider.GetSqlConnectionString());
SqlCommand cmdBkUp = new SqlCommand(SQLBackUp, cn);
try
{
cn.Open();
cmdBkUp.ExecuteNonQuery();
FileStream fs = File.OpenRead(fullBackupPath);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
//Encrypt
byte[] buffer1 = SuperKnuth.KnuthTools.Hash(buffer);
//Save file
File.WriteAllBytes(fullBackupPath.Replace(".bak", ".Klib"), buffer1);
File.Delete(fullBackupPath);
MessageBox.Show("Done");
this.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
if (cn.State == ConnectionState.Open)
{
cn.Close();
}
}
}
private void btnDelete_Click(object sender, EventArgs e)
{
//Check pw
if (txtPass.Text != "88")
{
MessageBox.Show("Pass sai");
return;
}
string sqlAlter = string.Format("alter database {0} set single_user with rollback immediate", txtDB.Text);
string sqlDelete = string.Format("DROP DATABASE {0}", txtDB.Text);
string cnString = DataProvider.GetSqlConnectionString();
cnString = cnString.Replace(txtDB.Text, "master");
using (SqlConnection cn = new SqlConnection(cnString))
{
SqlCommand cmdBkUp = new SqlCommand(sqlAlter, cn);
try
{
cn.Open();
cmdBkUp.ExecuteNonQuery();
cmdBkUp = new SqlCommand(sqlDelete, cn);
cmdBkUp.ExecuteNonQuery();
MessageBox.Show("Xóa thành công");
this.Close();
}
catch (Exception ex)
{
MessageBox.Show("Xóa thất bại\r\n" + ex.Message);
}
}
}
