/// <summary>
/// Opens a puppet file.
/// </summary>
private void OpenFile()
{
if (normalOpenFileDialog.ShowDialog() == DialogResult.OK)
{
var passwordDialog = new PasswordDialog();
var dialogResult = passwordDialog.ShowDialog();
if (dialogResult == DialogResult.OK)
{
if (this.ShowSavePrompt() != DialogResult.Cancel)
{
this.ResetNations();
FileStream fileStream = null;
byte[] iv = null;
byte[] encryptedBytes = null;
try
{
fileStream = new FileStream(normalOpenFileDialog.FileName, FileMode.Open);
iv = new byte[16];
encryptedBytes = new byte[fileStream.Length - 16];
fileStream.Read(iv, 0, 16);
fileStream.Read(encryptedBytes, 0, encryptedBytes.Length);
}
catch (Exception)
{
MessageBox.Show("An error occurred while opening or parsing data from the file. Do you have sufficient permissions to access the file?", "NationStates Nation Manager");
if (fileStream != null)
{
fileStream.Close();
}
return;
}
MemoryStream decryptedStream = null;
CryptoStream cryptoStream = null;
try
{
var key = this.GenerateKeyFromPassword(passwordDialog.Password);
var decryptor = new AesCryptoServiceProvider().CreateDecryptor(key, iv);
decryptedStream = new MemoryStream();
cryptoStream = new CryptoStream(decryptedStream, decryptor, CryptoStreamMode.Write);
cryptoStream.Write(encryptedBytes, 0, encryptedBytes.Length);
cryptoStream.FlushFinalBlock();
decryptedStream.Seek(0, SeekOrigin.Begin);
var formatter = new BinaryFormatter();
var nations = (List<Nation>)formatter.Deserialize(decryptedStream);
foreach (Nation nation in nations)
{
this.AddNation(nation);
}
}
catch (Exception)
{
MessageBox.Show("An error occurred while decrypting the file. Did you enter the correct password?", "NationStates Nation Manager");
if (decryptedStream != null)
{
decryptedStream.Close();
}
if (cryptoStream != null)
{
cryptoStream.Close();
}
return;
}
if (this.OpenFileStream != null)
{
this.OpenFileStream.Close();
}
this.OpenFileStream = fileStream;
this.OpenFileName = new FileInfo(normalOpenFileDialog.FileName).Name;
this.OpenFilePassword = passwordDialog.Password;
this.Text = "NationStates Nation Manager - " + this.OpenFileName;
}
}
}
}
/// <summary>
/// Saves the puppet list to an new file.
/// </summary>
private void SaveFileNew()
{
if (normalSaveFileDialog.ShowDialog() == DialogResult.OK)
{
var passwordDialog = new PasswordDialog();
var dialogResult = passwordDialog.ShowDialog();
if (dialogResult == DialogResult.OK)
{
byte[] iv = null;
byte[] encryptedBytes = null;
MemoryStream encryptedStream = null;
CryptoStream cryptoStream = null;
try
{
var serializationStream = new MemoryStream();
var formatter = new BinaryFormatter();
formatter.Serialize(serializationStream, this.Nations);
var serializedBytes = serializationStream.ToArray();
iv = this.GenerateInitializationVector();
var key = this.GenerateKeyFromPassword(passwordDialog.Password);
var encryptor = new AesCryptoServiceProvider().CreateEncryptor(key, iv);
encryptedStream = new MemoryStream();
cryptoStream = new CryptoStream(encryptedStream, encryptor, CryptoStreamMode.Write);
cryptoStream.Write(serializedBytes, 0, serializedBytes.Length);
cryptoStream.FlushFinalBlock();
encryptedStream.Seek(0, SeekOrigin.Begin);
encryptedBytes = new byte[encryptedStream.Length];
encryptedStream.Read(encryptedBytes, 0, encryptedBytes.Length);
}
catch (Exception)
{
MessageBox.Show("An error occurred while encrypting the data to write to the file.", "NationStates Nation Manager");
if (encryptedStream != null)
{
encryptedStream.Close();
}
if (cryptoStream != null)
{
cryptoStream.Close();
}
return;
}
FileStream fileStream = null;
try
{
fileStream = new FileStream(normalSaveFileDialog.FileName, FileMode.Create);
fileStream.Write(iv, 0, iv.Length);
fileStream.Write(encryptedBytes, 0, encryptedBytes.Length);
fileStream.Flush();
}
catch (Exception)
{
MessageBox.Show("An error occurred while creating or saving data to the file. Do you have sufficient permissions to access the file?", "NationStates Nation Manager");
if (fileStream != null)
{
fileStream.Close();
}
return;
}
if (this.OpenFileStream != null)
{
this.OpenFileStream.Close();
}
this.OpenFileStream = fileStream;
this.OpenFileName = new FileInfo(normalSaveFileDialog.FileName).Name;
this.OpenFilePassword = passwordDialog.Password;
this.Text = "NationStates Nation Manager - " + this.OpenFileName;
}
}
}
