com.github.markusbernhardt.proxy.ui.ProxyTester Maven / Gradle / Ivy

package com.github.markusbernhardt.proxy.ui;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.Proxy;
import java.net.ProxySelector;
import java.net.URL;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

import org.slf4j.helpers.MessageFormatter;

import com.github.markusbernhardt.proxy.ProxySearch;
import com.github.markusbernhardt.proxy.ProxySearch.Strategy;
import com.github.markusbernhardt.proxy.util.Logger;
import com.github.markusbernhardt.proxy.util.Logger.LogLevel;

/*****************************************************************************
 * Small test application that allows you to select a proxy search strategy and then validate URLs against it.
 * 
 * @author Markus Bernhardt, Copyright 2016
 * @author Bernd Rosstauscher, Copyright 2009
 ****************************************************************************/

public class ProxyTester extends JFrame {

    private static final long serialVersionUID = 1L;

    private JComboBox modes;

    private JButton testButton;

    private JTextField urlField;

    private JTextArea logArea;

    /*************************************************************************
     * Constructor
     ************************************************************************/

    public ProxyTester() {
        super();
        init();
    }

    /*************************************************************************
     * Initializes the GUI.
     ************************************************************************/

    private void init() {
        setTitle("Proxy Vole Tester");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel p = new JPanel();

        p.add(new JLabel("Mode:"));

        this.modes = new JComboBox(ProxySearch.Strategy.values());
        p.add(this.modes);

        p.add(new JLabel("URL:"));
        this.urlField = new JTextField(30);
        this.urlField.setText("http://www.google.com/");
        p.add(this.urlField);

        this.testButton = new JButton("Test");
        this.testButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent arg0) {
                testUrl();
            }
        });
        p.add(this.testButton);

        this.logArea = new JTextArea(5, 50);
        JPanel contenPane = new JPanel(new BorderLayout());
        contenPane.add(p, BorderLayout.NORTH);
        contenPane.add(new JScrollPane(this.logArea), BorderLayout.CENTER);
        setContentPane(contenPane);

        pack();
        setLocationRelativeTo(null);
        installLogger();
    }

    /*************************************************************************
     * Install the framework logger.
     ************************************************************************/

    private void installLogger() {
        Logger.setBackend(new Logger.LogBackEnd() {
            @Override
            public void log(Class clazz, LogLevel loglevel, String msg, Object... params) {
                ProxyTester.this.logArea
                    .append(loglevel + "\t" + MessageFormatter.format(msg, params).getMessage() + "\n");
            }
        });
    }

    /*************************************************************************
     * Test the given URL with the given Proxy Search.
     ************************************************************************/

    protected void testUrl() {
        try {
            if (this.urlField.getText().trim().length() == 0) {
                ProxyTester.this.logArea.append("ERROR\tPlease enter an URL first.\n");
                return;
            }

            this.logArea.setText("");

            Strategy pss = (Strategy) this.modes.getSelectedItem();
            ProxySearch ps = new ProxySearch();
            ps.addStrategy(pss);
            ProxySelector psel = ps.getProxySelector();
            if (psel == null) {
                ProxyTester.this.logArea.append("ERROR\tNo proxy settings available for this mode.\n");
                return;
            }
            ProxySelector.setDefault(psel);

            URL url = new URL(this.urlField.getText().trim());
            List result = psel.select(url.toURI());
            if (result == null || result.size() == 0) {
                ProxyTester.this.logArea.append("INFO\tNo proxy found for this url.\n");
                return;
            }

            ProxyTester.this.logArea.append("INFO\tProxy Settings found using " + pss + " strategy.\n");
            ProxyTester.this.logArea.append("INFO\tProxy used for URL is: " + result.get(0) + "\n");

        }
        catch (Exception e) {
            JOptionPane
                .showMessageDialog(this, "Error:" + e.getMessage(), "Error checking URL.", JOptionPane.ERROR_MESSAGE);
        }

    }

    /*************************************************************************
     * Main entry point for the application.
     * 
     * @param args
     *            command line arguments.
     ************************************************************************/

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                setLookAndFeel();

                ProxyTester mainFrame = new ProxyTester();
                mainFrame.setVisible(true);
            }

        });
    }

    /*************************************************************************
     * Change the L&F to the system default.
     ************************************************************************/

    private static void setLookAndFeel() {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        }
        catch (Exception e) {
            // Use default
        }
    }
}