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- /*
- * Copyright 2000-2022 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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