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/*
* Copyright 2000-2018 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.tools;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;
import java.util.logging.Logger;
import java.util.prefs.Preferences;
import org.apache.commons.io.IOUtils;
import com.google.gwt.dev.shell.CheckForUpdates;
import com.vaadin.shared.Version;
public class ReportUsage {
public static final String ANONYMOUS_ID = loadFirstLaunch();
// for compatibility with old checks
private static final String USER_AGENT_BASE = "GWT Freshness Checker";
private static final String COMPILER = "Compiler"; //$NON-NLS-1$
private static final String E_QPARAM = "&e="; //$NON-NLS-1$
private static final String R_QPARAM = "&r=unknown"; //$NON-NLS-1$
private static final String ID_QPARAM = "&id="; //$NON-NLS-1$
private static final String V_QPARAM = "?v="; //$NON-NLS-1$
private static final String USER_AGENT = "User-Agent"; //$NON-NLS-1$
// Use the GWT Freshness checker URL to store usage reports.
private static final String QUERY_URL = "https://tools.vaadin.com/version/currentversion.xml"; //$NON-NLS-1$
// Preferences keys
private static final String FIRST_LAUNCH = "firstLaunch"; //$NON-NLS-1$
private static final String LAST_PING = "lastPing";
public static final long ONE_DAY = 24 * 60 * 60 * 1000;
// for testing only
public static void main(String[] args) {
report();
}
public static FutureTask<Void> checkForUpdatesInBackgroundThread() {
FutureTask<Void> task = new FutureTask<>(new Callable<Void>() {
@Override
public Void call() throws Exception {
ReportUsage.report();
return null;
}
});
Thread checkerThread = new Thread(task, "Vaadin Update Checker");
checkerThread.setDaemon(true);
checkerThread.start();
return task;
}
public static void report() {
long currentTimeMillis = System.currentTimeMillis();
Preferences prefs = Preferences.userNodeForPackage(ReportUsage.class);
String lastPing = prefs.get(LAST_PING, "0");
if (lastPing != null) {
try {
long lastPingTime = Long.parseLong(lastPing);
if (currentTimeMillis < lastPingTime + ONE_DAY) {
return;
}
} catch (NumberFormatException e) {
// error parsing last ping time, ignore and ping
}
}
StringBuilder url = new StringBuilder(QUERY_URL);
url.append(V_QPARAM);
url.append(Version.getFullVersion());
url.append(ID_QPARAM);
url.append(ANONYMOUS_ID).append(R_QPARAM);
// TODO add more relevant entry point if feasible
String entryPoint = COMPILER;
if (entryPoint != null) {
url.append(E_QPARAM).append(entryPoint);
}
doHttpGet(makeUserAgent(), url.toString());
prefs.put(LAST_PING, String.valueOf(currentTimeMillis));
}
private static void doHttpGet(String userAgent, String url) {
Throwable caught;
InputStream is = null;
try {
URL urlToGet = new URL(url);
URLConnection conn = urlToGet.openConnection();
conn.setRequestProperty(USER_AGENT, userAgent);
is = conn.getInputStream();
// TODO use the results
IOUtils.toByteArray(is);
return;
} catch (MalformedURLException e) {
caught = e;
} catch (IOException e) {
caught = e;
} finally {
IOUtils.closeQuietly(is);
}
Logger.getLogger(ReportUsage.class.getName())
.fine("Caught an exception while executing HTTP query: "
+ caught.getMessage());
}
private static String makeUserAgent() {
String userAgent = USER_AGENT_BASE;
StringBuilder extra = new StringBuilder();
appendUserAgentProperty(extra, "java.vendor");
appendUserAgentProperty(extra, "java.version");
appendUserAgentProperty(extra, "os.arch");
appendUserAgentProperty(extra, "os.name");
appendUserAgentProperty(extra, "os.version");
if (extra.length() != 0) {
userAgent += " (" + extra + ")";
}
return userAgent;
}
private static void appendUserAgentProperty(StringBuilder sb,
String propName) {
String propValue = System.getProperty(propName);
if (propValue != null) {
if (sb.length() != 0) {
sb.append(';').append(' ');
}
sb.append(propName);
sb.append('=');
sb.append(propValue);
}
}
private static String loadFirstLaunch() {
Preferences prefs = Preferences
.userNodeForPackage(CheckForUpdates.class);
String firstLaunch = prefs.get(FIRST_LAUNCH, null);
if (firstLaunch == null) {
long currentTimeMillis = System.currentTimeMillis();
firstLaunch = Long.toHexString(currentTimeMillis);
prefs.put(FIRST_LAUNCH, firstLaunch);
}
return firstLaunch;
}
}
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