private void AddKey(object sender, RoutedEventArgs e)
{
AddKeyWindow requestWindow = sender as AddKeyWindow;
//encrypt input key value before insert in db
requestWindow.Key.KeyValue = KeyEncryptor.Encrypt(requestWindow.Key.KeyValue);
fileService.AddKey(requestWindow.Key);
requestWindow.Close();
}
private async void OnMessage(object sender, MessageEventArgs e)
{
Message message;
string messageText = KeyEncryptor.Encrypt(Configuration["EncryptionKey"], e.Message.Text.ToString());
try
{
string fileName = GoogleDrive.GetFileNameByKey(messageText);
GoogleDrive.DownloadByKey(messageText);
using (FileStream fileStream = System.IO.File.Open(Configuration["DownloadPath"] + "/" + fileName, FileMode.Open))
{
message = await BotClient.SendDocumentAsync(
chatId : e.Message.Chat,
document : new InputOnlineFile(fileStream, fileName)
);
}
_logger.LogInformation(
$"{message.From.FirstName} sent file {fileName} " +
$"to user {e.Message.From.Username} at {message.Date}. "
);
}
catch (ArgumentException ex)
{
_logger.LogWarning(
$"File was not sent to user {e.Message.From.Username} with text '{e.Message.Text}' " +
$"because of exception: {ex.Message}."
);
await BotClient.SendTextMessageAsync(
chatId : e.Message.Chat,
text : ex.Message
);
}
catch (Exception ex)
{
_logger.LogError($"{DateTime.Now} : {ex.Message}");
}
}
/// <summary>
/// Encrypt the given password with strong encryption
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public string[] EncryptPassword(string password)
{
string EncryptedPassword = "";
string InitVector = "";
string[] ReturnArray = new string[2];
try
{
// Instantiate the Encryptor
KeyEncryptor Enc = new KeyEncryptor(this.Algorithm);
byte[] Password = Encoding.ASCII.GetBytes(password);
// Get the password key
string StoredKey = this.GetPasswordKey();
byte[] Key = Convert.FromBase64String(StoredKey);
// Set the Initialization vector property to null so a brand new one will get generated
Enc.IV = null;
// Encrypt the Password and Convert the resulting array of bytes to a Base64 string
byte[] CipherText = Enc.Encrypt(Password, Key);
// Retrieve the intialization vector needed for decryption.
byte[] IV = Enc.IV;
// Update table with new values
EncryptedPassword = Convert.ToBase64String(CipherText);
InitVector = Convert.ToBase64String(IV);
}
catch (Exception ex)
{
throw new Exception("Exception Encrypting Password. " + ex.Message);
}
ReturnArray[0] = EncryptedPassword;
ReturnArray[1] = InitVector;
return(ReturnArray);
}