void otpCopyToolStripItem_Click(object sender, EventArgs e)
{
PwEntry entry;
if (this.GetSelectedSingleEntry(out entry))
{
if (!entry.Strings.Exists(OtpAuthData.StringDictionaryKey))
{
if (MessageBox.Show("Must configure TOTP on this entry. Do you want to do this now?", "Not Configured", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
ShowOneTimePasswords form = new ShowOneTimePasswords(entry, host);
form.ShowDialog();
}
}
else
{
var data = OtpAuthData.FromString(entry.Strings.Get(OtpAuthData.StringDictionaryKey).ReadString());
var totp = new Totp(data.Key, step: data.Step, mode: data.OtpHashMode, totpSize: data.Size);
var text = totp.ComputeTotp().ToString().PadLeft(data.Size, '0');
if (ClipboardUtil.CopyAndMinimize(new KeePassLib.Security.ProtectedString(true, text), true, this.host.MainWindow, entry, this.host.Database))
{
this.host.MainWindow.StartClipboardCountdown();
}
}
}
}
private void AddEdit()
{
this.timerUpdateTotp.Enabled = false;
this.labelRemaining.Text = "x";
this.labelOtp.Text = "xxxxxx";
this.totp = null;
var addEditForm = new OtpInformation(this.host);
addEditForm.Data = this.data;
var result = addEditForm.ShowDialog();
if (result == System.Windows.Forms.DialogResult.OK)
{
this.data = addEditForm.Data;
// set the data
entry.Strings.Set(OtpAuthData.StringDictionaryKey, new ProtectedString(true, this.data.EncodedString));
entry.Touch(true, false);
// indicate that a change was made, must save
host.MainWindow.UpdateUI(false, null, true, host.Database.RootGroup, true, null, true);
this.ShowCode();
}
else if (this.data == null)
{
this.Close();
}
else
{
this.ShowCode();
}
}
void SprEngine_FilterCompile(object sender, SprEventArgs e)
{
if ((e.Context.Flags & SprCompileFlags.ExtActive) == SprCompileFlags.ExtActive)
{
if (e.Text.IndexOf(totpPlaceHolder, StringComparison.InvariantCultureIgnoreCase) >= 0)
{
if (e.Context.Entry.Strings.Exists(OtpAuthData.StringDictionaryKey))
{
var data = OtpAuthData.FromString(e.Context.Entry.Strings.Get(OtpAuthData.StringDictionaryKey).ReadString());
var totp = new Totp(data.Key, step: data.Step, mode: data.OtpHashMode, totpSize: data.Size);
var text = totp.ComputeTotp().ToString().PadLeft(data.Size, '0');
e.Text = StrUtil.ReplaceCaseInsensitive(e.Text, "{TOTP}", text);
}
}
}
}
private void FormWasShown()
{
if (!entry.Strings.Exists(OtpAuthData.StringDictionaryKey))
{
this.AddEdit();
}
else
{
try
{
this.data = OtpAuthData.FromString(entry.Strings.Get(OtpAuthData.StringDictionaryKey).ReadString());
ShowCode();
}
catch
{
this.AddEdit();
}
}
}
public static OtpAuthData FromString(string data)
{
NameValueCollection parameters = ParseQueryString(data);
if (parameters[keyParameter] == null)
{
throw new ArgumentException("Must have a key in the data");
}
var otpData = new OtpAuthData();
otpData.Key = ProtectedKey.CreateProtectedKeyAndDestroyPlaintextKey(Base32.Decode(parameters[keyParameter]));
if (parameters[typeParameter] != null)
{
otpData.Type = (OtpType)Enum.Parse(typeof(OtpType), parameters[typeParameter]);
}
if (parameters[otpHashModeParameter] != null)
{
otpData.OtpHashMode = (OtpHashMode)Enum.Parse(typeof(OtpHashMode), parameters[otpHashModeParameter]);
}
if (otpData.Type == OtpType.Totp)
{
otpData.Step = GetIntOrDefault(parameters, stepParameter, 30);
}
else if (otpData.Type == OtpType.Hotp)
{
otpData.Counter = GetIntOrDefault(parameters, counterParameter, 0);
}
otpData.Size = GetIntOrDefault(parameters, sizeParameter, 6);
return(otpData);
}
private void OtpInformation_FormClosing(object sender, FormClosingEventArgs e)
{
if (this.DialogResult == System.Windows.Forms.DialogResult.Cancel)
{
return;
}
try
{
if (string.IsNullOrEmpty(this.textBoxKey.Text))
{
MessageBox.Show("A key must be set");
e.Cancel = true;
return;
}
if (this.textBoxKey.Text.Length < 8)
{
MessageBox.Show("Key must be at least 8 characters. If you are provided with less data then pad it up to 8 characters with '='s");
e.Cancel = true;
return;
}
// set the default settings
int size = 6;
int step = 30;
OtpHashMode hashMode = OtpHashMode.Sha1;
Key key = null;
if (this.checkBoxCustomSettings.Checked)
{
size = (this.radioButtonEight.Checked) ? 8 : 6;
if (int.TryParse(this.textBoxStep.Text, out step))
{
if (step != 30)
{
if (step <= 0)
{
this.textBoxStep.Text = "30";
MessageBox.Show("The time step must be a non-zero positive integer. The standard value is 30. If you weren't specifically given an alternate value just use 30.");
e.Cancel = true;
return;
}
else if (MessageBox.Show("You have selected a non-standard time step. 30 is the standard recommended value. You should only proceed if you were specifically told to use this time step size. Do you wish to proceed?", "Non-standard time step size", MessageBoxButtons.YesNo) == System.Windows.Forms.DialogResult.No)
{
e.Cancel = true;
return;
}
}
}
else
{
this.textBoxStep.Text = "30";
MessageBox.Show("The time step must be a non-zero positive integer. The standard value is 30. If you weren't specifically given an alternate value just use 30.");
e.Cancel = true;
return;
}
// need to do encoding here
key = ProtectedKey.CreateProtectedKeyAndDestroyPlaintextKey(Base32.Decode(this.textBoxKey.Text.Replace(" ", string.Empty).Replace("-", string.Empty)));
}
else
{
key = ProtectedKey.CreateProtectedKeyAndDestroyPlaintextKey(Base32.Decode(this.textBoxKey.Text.Replace(" ", string.Empty).Replace("-", string.Empty)));
}
// hashmode
if (this.radioButtonSha1.Checked)
{
hashMode = OtpHashMode.Sha1;
}
else if (this.radioButtonSha256.Checked)
{
hashMode = OtpHashMode.Sha256;
}
else if (this.radioButtonSha512.Checked)
{
hashMode = OtpHashMode.Sha512;
}
this.Data = new OtpAuthData()
{
Key = key,
Size = size,
Step = step,
OtpHashMode = hashMode
};
}
catch
{
e.Cancel = true;
}
}
