pl.kotcrab.arget.gui.dialog.CreateContactDialog.java Source code

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Here is the source code for pl.kotcrab.arget.gui.dialog.CreateContactDialog.java

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/*******************************************************************************
Copyright 2014 Pawel Pastuszak
     
This file is part of Arget.
    
Arget is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
Arget 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 General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with Arget.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

package pl.kotcrab.arget.gui.dialog;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.security.GeneralSecurityException;
import java.security.KeyFactory;
import java.security.spec.X509EncodedKeySpec;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.EmptyBorder;

import net.miginfocom.swing.MigLayout;

import org.apache.commons.codec.binary.Base64;

import pl.kotcrab.arget.gui.components.DocumentFieldsChangeListener;
import pl.kotcrab.arget.gui.components.ESCClosableDialog;
import pl.kotcrab.arget.server.ContactInfo;

public class CreateContactDialog extends ESCClosableDialog {
    private String profilePublicKey;

    private JTextField nickTextField;
    private JButton okButton;
    private JTextArea keyTextArea;

    private FieldsChangeListener changeListener;
    private JLabel statusLabel;

    /** @wbp.parser.constructor */
    public CreateContactDialog(JFrame frame, String profilePublicKey, CreateContactDialogFinished listener) {
        this(frame, profilePublicKey, null, listener);
    }

    public CreateContactDialog(JFrame frame, String profilePublicKey, ContactInfo contact) {
        this(frame, profilePublicKey, contact, null);
    }

    public CreateContactDialog(JFrame frame, String profilePublicKey, final ContactInfo contact,
            final CreateContactDialogFinished listener) {
        super(frame, true);

        this.profilePublicKey = profilePublicKey;

        changeListener = new FieldsChangeListener();

        setTitle("Edit Contact Details");
        setSize(477, 261);
        setMinimumSize(new Dimension(300, 250));
        setPositionToCenter(frame);

        JPanel mainPanel = new JPanel();
        getContentPane().setLayout(new BorderLayout());
        getContentPane().add(mainPanel, BorderLayout.CENTER);

        nickTextField = new JTextField();

        keyTextArea = new JTextArea();
        keyTextArea.setFont(new Font("Monospaced", Font.PLAIN, 12));
        keyTextArea.setLineWrap(true);

        nickTextField.getDocument().addDocumentListener(changeListener);
        keyTextArea.getDocument().addDocumentListener(changeListener);

        statusLabel = new JLabel("Nickname cannot be empty");
        statusLabel.setForeground(Color.RED);
        statusLabel.setBorder(new EmptyBorder(0, 6, 0, 0));

        JButton cancelButton = new JButton("Cancel");
        okButton = new JButton("OK");
        okButton.setEnabled(false);

        mainPanel.setLayout(new MigLayout("", "[55.00px][][390px,grow]", "[20px][15px][135px,grow][]"));

        mainPanel.add(new JLabel("Nickname:"), "cell 0 0,grow");
        mainPanel.add(new JLabel("Public key:", SwingConstants.CENTER), "cell 0 1 3 1,grow");
        mainPanel.add(nickTextField, "cell 1 0 2 1,grow");
        mainPanel.add(new JScrollPane(keyTextArea), "cell 0 2 3 1,grow");
        mainPanel.add(statusLabel, "cell 0 3 2 1");
        mainPanel.add(cancelButton, "flowx,cell 2 3,alignx right");
        mainPanel.add(okButton, "cell 2 3,alignx right");

        okButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                if (listener != null) {
                    ContactInfo contact = new ContactInfo(nickTextField.getText(), keyTextArea.getText());
                    listener.finished(contact);
                }

                if (contact != null) {
                    contact.name = nickTextField.getText();
                    contact.publicProfileKey = keyTextArea.getText();
                }

                dispose();
            }
        });

        cancelButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                dispose();
            }
        });

        if (contact != null) {
            nickTextField.setText(contact.name);
            keyTextArea.setText(contact.publicProfileKey);
        }

        setVisible(true);
    }

    private class FieldsChangeListener extends DocumentFieldsChangeListener {
        @Override
        protected void verify() {

            okButton.setEnabled(true);
            statusLabel.setVisible(false);

            try {
                X509EncodedKeySpec keySpec = new X509EncodedKeySpec(Base64.decodeBase64(keyTextArea.getText()));
                KeyFactory keyFactory = KeyFactory.getInstance("RSA", "BC");
                keyFactory.generatePublic(keySpec);
            } catch (GeneralSecurityException e) {
                setLabelError("Invalid public key");
                return;
            }

            if (nickTextField.getText().isEmpty()) {
                setLabelError("Nickname cannot be empty");
                return;
            }

            if (keyTextArea.getText().equals(profilePublicKey)) {
                setLabelError("You cannot add yourself to contact list");
                return;
            }
        }

        private void setLabelError(String text) {
            okButton.setEnabled(false);
            statusLabel.setVisible(true);
            statusLabel.setText(text);
        }
    }

}