/**
 * certexport.cpp
 *
 * Copyright (c) 2001 George Staikos <staikos@kde.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published
 *  by the Free Software Foundation; either version 2.1 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include "certexport.h"

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <QPushButton>
#include <klineedit.h>
#include <kfiledialog.h>
#include <QRadioButton>
#include <QLayout>
#include <QLabel>
#include <QGroupBox>
#include <klocale.h>
#include <kdebug.h>
#include <kmessagebox.h>
#include <ksslall.h>


KCertExport::KCertExport(QWidget *parent)
 : KDialog(parent)
{
    setButtons(None);
    QWidget *widget = new QWidget(this);
    setMainWidget(widget);
    QGridLayout *grid = new QGridLayout;
    widget->setLayout(grid);

   setCaption(i18n("X509 Certificate Export"));

   QGroupBox *bg = new QGroupBox(i18n("Format"), this);
   QVBoxLayout *lay = new QVBoxLayout(bg);
   _pem = new QRadioButton(i18n("&PEM"), bg);
   lay->addWidget(_pem);
   _netscape = new QRadioButton(i18n("&Netscape"), bg);
   lay->addWidget(_netscape);
   _der = new QRadioButton(i18n("&DER/ASN1"), bg);
   lay->addWidget(_der);
   _text = new QRadioButton(i18n("&Text"), bg);
   lay->addWidget(_text);
   grid->addWidget(bg, 0, 0, 5, 4 );
   _pem->setChecked(true);

   grid->addWidget(new QLabel(i18n("Filename:"), this), 5, 0, 1, 4 );

   _filename = new KLineEdit(this);
   grid->addWidget(_filename, 6, 0, 1, 5 );
   connect(_filename, SIGNAL(textChanged(QString)), this, SLOT(slotTextChanged(QString)));
   connect(_filename, SIGNAL(returnPressed()), this, SLOT(slotExport()));

   _choose = new QPushButton(KIcon("document-open"), QString(), this); // TODO: port to KUrlRequester
   grid->addWidget(_choose, 6, 5);
   connect(_choose, SIGNAL(clicked()), this, SLOT(slotChoose()));

   _exportBut = new QPushButton(i18n("&Export"), this);
   grid->addWidget(_exportBut, 8, 4);
   connect(_exportBut, SIGNAL(clicked()), this, SLOT(slotExport()));
   _exportBut->setEnabled(false);

   _cancel = new QPushButton(i18n("&Cancel"), this);
   grid->addWidget(_cancel, 8, 5);
   connect(_cancel, SIGNAL(clicked()), this, SLOT(reject()));
}


KCertExport::~KCertExport() {

}


void KCertExport::setCertificate(KSSLCertificate *c) {
   _c = c;
}


void KCertExport::slotExport() {
QByteArray cert;
QString certt;

   if (_filename->text().isEmpty()) return;

   if (!_c) {
      KMessageBox::sorry(this, i18n("Internal error. Please report to kfm-devel@kde.org."), i18n("SSL"));
      return;
   }

   if (_der->isChecked()) {
      cert = _c->toDer();
   } else if (_pem->isChecked()) {
      cert = _c->toPem();
   } else if (_text->isChecked()) {
      certt = _c->toText();
   } else {  // netscape
      cert = _c->toNetscape();
   }

      if ((!_text->isChecked() && cert.size() <= 0) && certt.isEmpty()) {
         KMessageBox::error(this, i18n("Error converting the certificate into the requested format."), i18n("SSL"));
         reject();
         return;
      }

      QFile outFile(_filename->text());

      if (!outFile.open(QIODevice::WriteOnly)) {
         KMessageBox::error(this, i18n("Error opening file for output."), i18n("SSL"));
         reject();
         return;
      }

      if (_text->isChecked())
        outFile.write(certt.toLocal8Bit(), certt.length());
      else outFile.write(cert);

      outFile.close();

accept();
}


void KCertExport::slotChoose() {
  //QString newFile = KFileDialog::getSaveFileName("::x509save", i18n("*.pem|Privacy Enhanced Mail Format\n*.der|DER/ASN1 Format"));
  QString newFile = KFileDialog::getSaveFileName(QString(), "application/x-x509-ca-cert");

   //  Dunno about this one yet
   // \n*.ncert|Netscape certificate files");

  if (!newFile.isEmpty()) _filename->setText(newFile);
}


void KCertExport::slotTextChanged(const QString& x) {
  _exportBut->setEnabled(!x.isEmpty());
}


#include "moc_certexport.cpp"