/
UpdateCheck.java
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/
UpdateCheck.java
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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Processing project - http://processing.org
Copyright (c) 2005-06 Ben Fry and Casey Reas
This program 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 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package processing.app;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Random;
import javax.swing.JOptionPane;
import processing.core.PApplet;
/**
* Threaded class to check for updates in the background.
* <P>
* This is the class that handles the mind control and stuff for
* spying on our users and stealing their personal information.
* A random ID number is generated for each user, and hits the server
* to check for updates. Also included is the operating system and
* its version and the version of Java being used to run Processing.
* <P>
* The ID number also helps provide us a general idea of how many
* people are using Processing, which helps us when writing grant
* proposals and that kind of thing so that we can keep Processing free.
*/
public class UpdateCheck implements Runnable {
Base base;
String downloadURL = "http://wiring.org.co/download/latest.txt";
static final long ONE_DAY = 24 * 60 * 60 * 1000;
public UpdateCheck(Base base) {
Thread thread = new Thread(this);
thread.start();
}
public void run() {
//System.out.println("checking for updates...");
// generate a random id in case none exists yet
Random r = new Random();
long id = r.nextLong();
String idString = Preferences.get("update.id");
if (idString != null) {
id = Long.parseLong(idString);
} else {
Preferences.set("update.id", String.valueOf(id));
}
try {
String info;
info = URLEncoder.encode(id + "\t" +
PApplet.nf(Base.REVISION, 4) + "\t" +
System.getProperty("java.version") + "\t" +
System.getProperty("java.vendor") + "\t" +
System.getProperty("os.name") + "\t" +
System.getProperty("os.version") + "\t" +
System.getProperty("os.arch"), "UTF-8");
int latest = readInt(downloadURL + "?" + info);
String lastString = Preferences.get("update.last");
long now = System.currentTimeMillis();
if (lastString != null) {
long when = Long.parseLong(lastString);
if (now - when < ONE_DAY) {
// don't annoy the shit outta people
return;
}
}
Preferences.set("update.last", String.valueOf(now));
String prompt =
"A new version of Wiring is available,\n" +
"would you like to visit the Wiring download page?";
if (base.activeEditor != null) {
if (latest > Base.REVISION) {
Object[] options = { "Yes", "No" };
int result = JOptionPane.showOptionDialog(base.activeEditor,
prompt,
"Update",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE,
null,
options,
options[0]);
if (result == JOptionPane.YES_OPTION) {
Base.openURL("http://wiring.org.co/download/");
}
}
}
} catch (Exception e) {
//e.printStackTrace();
//System.err.println("Error while trying to check for an update.");
}
}
protected int readInt(String filename) throws Exception {
URL url = new URL(filename);
InputStream stream = url.openStream();
InputStreamReader isr = new InputStreamReader(stream);
BufferedReader reader = new BufferedReader(isr);
return Integer.parseInt(reader.readLine());
}
}