BrowserLaunch.java Source code

Introduction

Here is the source code for BrowserLaunch.java

Source

/* This code is part of Freenet. It is distributed under the GNU General
 * Public License, version 2 (or at your option any later version). See
 * http://www.gnu.org/ for further details of the GPL. */

//package freenet.utils;

import java.lang.reflect.Method;
import java.net.URL;

/**
 * A simple class to load an URL in a browser
 * 
 * @author Florent Daignière <nextgens@freenetproject.org>
 */
public class BrowserLaunch {
    private final static boolean isMacos;
    private final static boolean isWindows;
    private static String BROWSER = null;

    static {
        String osName = System.getProperty("os.name");
        isMacos = osName.startsWith("Mac OS");
        isWindows = osName.startsWith("Windows");
        if (!isMacos && !isWindows) {
            //assume Unix or Linux
            String[] browsers = { "firefox", "opera", "konqueror", "epiphany", "mozilla", "netscape", "seamonkey" };

            try {
                for (int count = 0; count < browsers.length && BROWSER == null; count++)
                    if (Runtime.getRuntime().exec(new String[] { "which", browsers[count] }).waitFor() == 0)
                        BROWSER = browsers[count];
            } catch (Exception e) {
            }
        }
    }

    public static void main(String arg[]) {
        launch(arg[0]);
    }

    public static void launch(URL url) {
        launch(url.toString());
    }

    public static void launch(String url) {
        try {
            if (isMacos) {
                Class fileMgr = Class.forName("com.apple.eio.FileManager");
                Method openURL = fileMgr.getDeclaredMethod("openURL", new Class[] { String.class });

                openURL.invoke(null, new Object[] { url });
            } else if (isWindows)
                Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + url);
            else {
                if (BROWSER == null)
                    throw new Exception("Could not find web browser");
                else
                    Runtime.getRuntime().exec(new String[] { BROWSER, url });
            }
        } catch (Exception e) {
            System.out.println(
                    "Unable to detect/startup your browser... please go to " + url + " for futher instructions");
        }
    }
}