/// <summary>
/// WrapperEvent fired when a mailItem is opened.
/// This handler is designed to initialize the state of the compose button
/// states (Sign/Encrypt) with recorded values, if present, or with default
/// settings values.
/// </summary>
/// <param name="mailItem">the opened mailItem</param>
/// <param name="cancel">False when the event occurs. If the event procedure sets this argument to True,
/// the open operation is not completed and the inspector is not displayed.</param>
void mailItem_Open(Outlook.MailItem mailItem, ref bool cancel)
{
if (mailItem == null)
return;
SetProperty(mailItem, "GnuPGSetting.Sign", false);
SetProperty(mailItem, "GnuPGSetting.Encrypt", false);
// New mail (Compose)
if (!mailItem.Sent)
{
_ribbon.SignButton.Checked = _settings.AutoSign;
_ribbon.EncryptButton.Checked = _settings.AutoEncrypt;
if (mailItem.Body.Contains("\n** Message decrypted. Valid signature"))
{
_ribbon.SignButton.Checked = true;
_ribbon.EncryptButton.Checked = true;
}
else if (mailItem.Body.Contains("\n** Message decrypted."))
{
_ribbon.EncryptButton.Checked = true;
}
SetProperty(mailItem, "GnuPGSetting.Sign", _ribbon.SignButton.Checked);
SetProperty(mailItem, "GnuPGSetting.Encrypt", _ribbon.EncryptButton.Checked);
_ribbon.InvalidateButtons();
if (_ribbon.EncryptButton.Checked || _ribbon.SignButton.Checked)
mailItem.BodyFormat = Outlook.OlBodyFormat.olFormatPlain;
}
else
// Read mail
{
// Look for PGP headers
Match match = null;
if (mailItem.Body != null)
match = Regex.Match(mailItem.Body, PgpHeaderPattern);
if (match != null && (_autoDecrypt || _settings.AutoDecrypt) && match.Value == PgpEncryptedHeader)
{
if (mailItem.BodyFormat != Outlook.OlBodyFormat.olFormatPlain)
{
var body = new StringBuilder(mailItem.Body);
RemovePgpHeader(body);
mailItem.Body = body.ToString();
}
_autoDecrypt = false;
DecryptEmail(mailItem);
// Update match again, in case decryption failed/cancelled.
match = Regex.Match(mailItem.Body, PgpHeaderPattern);
SetProperty(mailItem, "GnuPGSetting.Decrypted", true);
}
else if (match != null && _settings.AutoVerify && match.Value == PgpSignedHeader)
{
if (mailItem.BodyFormat != Outlook.OlBodyFormat.olFormatPlain)
{
var body = new StringBuilder(mailItem.Body);
mailItem.BodyFormat = Outlook.OlBodyFormat.olFormatPlain;
RemovePgpHeader(body);
mailItem.Body = body.ToString();
}
VerifyEmail(mailItem);
}
else
{
HandleMailWithoutPgpBody(mailItem);
}
}
_ribbon.InvalidateButtons();
}
