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TF-PlotSquared/Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/util/Metrics.java
Alexander Söderberg 280ced7904 Add GPLv3 License headers to all source files. 
Reason: "            How to Apply These Terms to Your New Programs

           If you develop a new program, and you want it to be of the greatest
         possible use to the public, the best way to achieve this is to make it
         free software which everyone can redistribute and change under these terms.

           To do so, attach the following notices to the program.  It is safest
         to attach them to the start of each source file to most effectively
         state the exclusion of warranty; and each file should have at least
         the "copyright" line and a pointer to where the full notice is found."
2020-04-10 18:09:01 +02:00

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/*
* _____ _ _ _____ _
* | __ \| | | | / ____| | |
* | |__) | | ___ | |_| (___ __ _ _ _ __ _ _ __ ___ __| |
* | ___/| |/ _ \| __|\___ \ / _` | | | |/ _` | '__/ _ \/ _` |
* | | | | (_) | |_ ____) | (_| | |_| | (_| | | | __/ (_| |
* |_| |_|\___/ \__|_____/ \__, |\__,_|\__,_|_| \___|\__,_|
* | |
* |_|
* PlotSquared plot management system for Minecraft
* Copyright (C) 2020 IntellectualSites
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
package com.github.intellectualsites.plotsquared.bukkit.util;
import org.bukkit.Bukkit;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.RegisteredServiceProvider;
import org.bukkit.plugin.ServicePriority;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import javax.net.ssl.HttpsURLConnection;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;
import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.logging.Level;
import java.util.zip.GZIPOutputStream;
/**
* bStats collects some data for plugin authors.
* <p>
* Check out https://bStats.org/ to learn more about bStats!
*/
@SuppressWarnings({"WeakerAccess", "unused"})
public class Metrics {
static {
// You can use the property to disable the check in your test environment
if (System.getProperty("bstats.relocatecheck") == null || !System.getProperty("bstats.relocatecheck").equals("false")) {
// Maven's Relocate is clever and changes strings, too. So we have to use this little "trick" ... :D
final String defaultPackage = new String(
new byte[]{'o', 'r', 'g', '.', 'b', 's', 't', 'a', 't', 's', '.', 'b', 'u', 'k', 'k', 'i', 't'});
final String examplePackage = new String(new byte[]{'y', 'o', 'u', 'r', '.', 'p', 'a', 'c', 'k', 'a', 'g', 'e'});
// We want to make sure nobody just copy & pastes the example and use the wrong package names
if (Metrics.class.getPackage().getName().equals(defaultPackage) || Metrics.class.getPackage().getName().equals(examplePackage)) {
throw new IllegalStateException("bStats Metrics class has not been relocated correctly!");
}
}
}
// The version of this bStats class
public static final int B_STATS_VERSION = 1;
// The url to which the data is sent
private static final String URL = "https://bStats.org/submitData/bukkit";
// Is bStats enabled on this server?
private boolean enabled;
// Should failed requests be logged?
private static boolean logFailedRequests;
// Should the sent data be logged?
private static boolean logSentData;
// Should the response text be logged?
private static boolean logResponseStatusText;
// The uuid of the server
private static String serverUUID;
// The plugin
private final Plugin plugin;
// The plugin id
private final int bstatsId;
// A list with all custom charts
private final List<CustomChart> charts = new ArrayList<>();
/**
* Class constructor.
*
* @param plugin The plugin which stats should be submitted.
* @param bstatsId The ID of the plugin. It can be found in the url when you open the plugin on bStats.
*/
public Metrics(Plugin plugin, int bstatsId) {
if (plugin == null) {
throw new IllegalArgumentException("Plugin cannot be null!");
}
this.plugin = plugin;
this.bstatsId = bstatsId;
// Get the config file
File bStatsFolder = new File(plugin.getDataFolder().getParentFile(), "bStats");
File configFile = new File(bStatsFolder, "config.yml");
YamlConfiguration config = YamlConfiguration.loadConfiguration(configFile);
// Check if the config file exists
if (!config.isSet("serverUuid")) {
// Add default values
config.addDefault("enabled", true);
// Every server gets it's unique random id.
config.addDefault("serverUuid", UUID.randomUUID().toString());
// Should failed request be logged?
config.addDefault("logFailedRequests", false);
// Should the sent data be logged?
config.addDefault("logSentData", false);
// Should the response text be logged?
config.addDefault("logResponseStatusText", false);
// Inform the server owners about bStats
config.options().header(
"bStats collects some data for plugin authors like how many servers are using their plugins.\n" +
"To honor their work, you should not disable it.\n" +
"This has nearly no effect on the server performance!\n" +
"Check out https://bStats.org/ to learn more :)"
).copyDefaults(true);
try {
config.save(configFile);
} catch (IOException ignored) { }
}
// Load the data
enabled = config.getBoolean("enabled", true);
serverUUID = config.getString("serverUuid");
logFailedRequests = config.getBoolean("logFailedRequests", false);
logSentData = config.getBoolean("logSentData", false);
logResponseStatusText = config.getBoolean("logResponseStatusText", false);
if (enabled) {
boolean found = false;
// Search for all other bStats Metrics classes to see if we are the first one
for (Class<?> service : Bukkit.getServicesManager().getKnownServices()) {
try {
service.getField("B_STATS_VERSION"); // Our identifier :)
found = true; // We aren't the first
break;
} catch (NoSuchFieldException ignored) { }
}
// Register our service
Bukkit.getServicesManager().register(Metrics.class, this, plugin, ServicePriority.Normal);
if (!found) {
// We are the first!
startSubmitting();
}
}
}
/**
* Checks if bStats is enabled.
*
* @return Whether bStats is enabled or not.
*/
public boolean isEnabled() {
return enabled;
}
/**
* Adds a custom chart.
*
* @param chart The chart to add.
*/
public void addCustomChart(CustomChart chart) {
if (chart == null) {
throw new IllegalArgumentException("Chart cannot be null!");
}
charts.add(chart);
}
/**
* Starts the Scheduler which submits our data every 30 minutes.
*/
private void startSubmitting() {
final Timer timer = new Timer(true); // We use a timer cause the Bukkit scheduler is affected by server lags
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
if (!plugin.isEnabled()) { // Plugin was disabled
timer.cancel();
return;
}
// Nevertheless we want our code to run in the Bukkit main thread, so we have to use the Bukkit scheduler
// Don't be afraid! The connection to the bStats server is still async, only the stats collection is sync ;)
Bukkit.getScheduler().runTask(plugin, () -> submitData());
}
}, 1000 * 60 * 5, 1000 * 60 * 30);
// Submit the data every 30 minutes, first time after 5 minutes to give other plugins enough time to start
// WARNING: Changing the frequency has no effect but your plugin WILL be blocked/deleted!
// WARNING: Just don't do it!
}
/**
* Gets the plugin specific data.
* This method is called using Reflection.
*
* @return The plugin specific data.
*/
public JSONObject getPluginData() {
JSONObject data = new JSONObject();
String pluginName = plugin.getDescription().getName();
String pluginVersion = plugin.getDescription().getVersion();
data.put("pluginName", pluginName); // Append the name of the plugin
data.put("id", bstatsId); // Append the id of the plugin
data.put("pluginVersion", pluginVersion); // Append the version of the plugin
JSONArray customCharts = new JSONArray();
for (CustomChart customChart : charts) {
// Add the data of the custom charts
JSONObject chart = customChart.getRequestJsonObject();
if (chart == null) { // If the chart is null, we skip it
continue;
}
customCharts.add(chart);
}
data.put("customCharts", customCharts);
return data;
}
/**
* Gets the server specific data.
*
* @return The server specific data.
*/
private JSONObject getServerData() {
// Minecraft specific data
int playerAmount;
try {
// Around MC 1.8 the return type was changed to a collection from an array,
// This fixes java.lang.NoSuchMethodError: org.bukkit.Bukkit.getOnlinePlayers()Ljava/util/Collection;
Method onlinePlayersMethod = Class.forName("org.bukkit.Server").getMethod("getOnlinePlayers");
playerAmount = onlinePlayersMethod.getReturnType().equals(Collection.class)
? ((Collection<?>) onlinePlayersMethod.invoke(Bukkit.getServer())).size()
: ((Player[]) onlinePlayersMethod.invoke(Bukkit.getServer())).length;
} catch (Exception e) {
playerAmount = Bukkit.getOnlinePlayers().size(); // Just use the new method if the Reflection failed
}
int onlineMode = Bukkit.getOnlineMode() ? 1 : 0;
String bukkitVersion = Bukkit.getVersion();
// OS/Java specific data
String javaVersion = System.getProperty("java.version");
String osName = System.getProperty("os.name");
String osArch = System.getProperty("os.arch");
String osVersion = System.getProperty("os.version");
int coreCount = Runtime.getRuntime().availableProcessors();
JSONObject data = new JSONObject();
data.put("serverUUID", serverUUID);
data.put("playerAmount", playerAmount);
data.put("onlineMode", onlineMode);
data.put("bukkitVersion", bukkitVersion);
data.put("javaVersion", javaVersion);
data.put("osName", osName);
data.put("osArch", osArch);
data.put("osVersion", osVersion);
data.put("coreCount", coreCount);
return data;
}
/**
* Collects the data and sends it afterwards.
*/
private void submitData() {
final JSONObject data = getServerData();
JSONArray pluginData = new JSONArray();
// Search for all other bStats Metrics classes to get their plugin data
for (Class<?> service : Bukkit.getServicesManager().getKnownServices()) {
try {
service.getField("B_STATS_VERSION"); // Our identifier :)
for (RegisteredServiceProvider<?> provider : Bukkit.getServicesManager().getRegistrations(service)) {
try {
pluginData.add(provider.getService().getMethod("getPluginData").invoke(provider.getProvider()));
} catch (NullPointerException | NoSuchMethodException | IllegalAccessException | InvocationTargetException ignored) { }
}
} catch (NoSuchFieldException ignored) { }
}
data.put("plugins", pluginData);
// Create a new thread for the connection to the bStats server
new Thread(new Runnable() {
@Override
public void run() {
try {
// Send the data
sendData(plugin, data);
} catch (Exception e) {
// Something went wrong! :(
if (logFailedRequests) {
plugin.getLogger().log(Level.WARNING, "Could not submit plugin stats of " + plugin.getName(), e);
}
}
}
}).start();
}
/**
* Sends the data to the bStats server.
*
* @param plugin Any plugin. It's just used to get a logger instance.
* @param data The data to send.
* @throws Exception If the request failed.
*/
private static void sendData(Plugin plugin, JSONObject data) throws Exception {
if (data == null) {
throw new IllegalArgumentException("Data cannot be null!");
}
if (Bukkit.isPrimaryThread()) {
throw new IllegalAccessException("This method must not be called from the main thread!");
}
if (logSentData) {
plugin.getLogger().info("Sending data to bStats: " + data.toString());
}
HttpsURLConnection connection = (HttpsURLConnection) new URL(URL).openConnection();
// Compress the data to save bandwidth
byte[] compressedData = compress(data.toString());
// Add headers
connection.setRequestMethod("POST");
connection.addRequestProperty("Accept", "application/json");
connection.addRequestProperty("Connection", "close");
connection.addRequestProperty("Content-Encoding", "gzip"); // We gzip our request
connection.addRequestProperty("Content-Length", String.valueOf(compressedData.length));
connection.setRequestProperty("Content-Type", "application/json"); // We send our data in JSON format
connection.setRequestProperty("User-Agent", "MC-Server/" + B_STATS_VERSION);
// Send data
connection.setDoOutput(true);
DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream());
outputStream.write(compressedData);
outputStream.flush();
outputStream.close();
InputStream inputStream = connection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder builder = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
builder.append(line);
}
bufferedReader.close();
if (logResponseStatusText) {
plugin.getLogger().info("Sent data to bStats and received response: " + builder.toString());
}
}
/**
* Gzips the given String.
*
* @param str The string to gzip.
* @return The gzipped String.
* @throws IOException If the compression failed.
*/
private static byte[] compress(final String str) throws IOException {
if (str == null) {
return null;
}
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
GZIPOutputStream gzip = new GZIPOutputStream(outputStream);
gzip.write(str.getBytes(StandardCharsets.UTF_8));
gzip.close();
return outputStream.toByteArray();
}
/**
* Represents a custom chart.
*/
public static abstract class CustomChart {
// The id of the chart
final String chartId;
/**
* Class constructor.
*
* @param chartId The id of the chart.
*/
CustomChart(String chartId) {
if (chartId == null || chartId.isEmpty()) {
throw new IllegalArgumentException("ChartId cannot be null or empty!");
}
this.chartId = chartId;
}
private JSONObject getRequestJsonObject() {
JSONObject chart = new JSONObject();
chart.put("chartId", chartId);
try {
JSONObject data = getChartData();
if (data == null) {
// If the data is null we don't send the chart.
return null;
}
chart.put("data", data);
} catch (Throwable t) {
if (logFailedRequests) {
Bukkit.getLogger().log(Level.WARNING, "Failed to get data for custom chart with id " + chartId, t);
}
return null;
}
return chart;
}
protected abstract JSONObject getChartData() throws Exception;
}
/**
* Represents a custom simple pie.
*/
public static class SimplePie extends CustomChart {
private final Callable<String> callable;
/**
* Class constructor.
*
* @param chartId The id of the chart.
* @param callable The callable which is used to request the chart data.
*/
public SimplePie(String chartId, Callable<String> callable) {
super(chartId);
this.callable = callable;
}
@Override
protected JSONObject getChartData() throws Exception {
JSONObject data = new JSONObject();
String value = callable.call();
if (value == null || value.isEmpty()) {
// Null = skip the chart
return null;
}
data.put("value", value);
return data;
}
}
/**
* Represents a custom advanced pie.
*/
public static class AdvancedPie extends CustomChart {
private final Callable<Map<String, Integer>> callable;
/**
* Class constructor.
*
* @param chartId The id of the chart.
* @param callable The callable which is used to request the chart data.
*/
public AdvancedPie(String chartId, Callable<Map<String, Integer>> callable) {
super(chartId);
this.callable = callable;
}
@Override
protected JSONObject getChartData() throws Exception {
JSONObject data = new JSONObject();
JSONObject values = new JSONObject();
Map<String, Integer> map = callable.call();
if (map == null || map.isEmpty()) {
// Null = skip the chart
return null;
}
boolean allSkipped = true;
for (Map.Entry<String, Integer> entry : map.entrySet()) {
if (entry.getValue() == 0) {
continue; // Skip this invalid
}
allSkipped = false;
values.put(entry.getKey(), entry.getValue());
}
if (allSkipped) {
// Null = skip the chart
return null;
}
data.put("values", values);
return data;
}
}
/**
* Represents a custom drilldown pie.
*/
public static class DrilldownPie extends CustomChart {
private final Callable<Map<String, Map<String, Integer>>> callable;
/**
* Class constructor.
*
* @param chartId The id of the chart.
* @param callable The callable which is used to request the chart data.
*/
public DrilldownPie(String chartId, Callable<Map<String, Map<String, Integer>>> callable) {
super(chartId);
this.callable = callable;
}
@Override
public JSONObject getChartData() throws Exception {
JSONObject data = new JSONObject();
JSONObject values = new JSONObject();
Map<String, Map<String, Integer>> map = callable.call();
if (map == null || map.isEmpty()) {
// Null = skip the chart
return null;
}
boolean reallyAllSkipped = true;
for (Map.Entry<String, Map<String, Integer>> entryValues : map.entrySet()) {
JSONObject value = new JSONObject();
boolean allSkipped = true;
for (Map.Entry<String, Integer> valueEntry : map.get(entryValues.getKey()).entrySet()) {
value.put(valueEntry.getKey(), valueEntry.getValue());
allSkipped = false;
}
if (!allSkipped) {
reallyAllSkipped = false;
values.put(entryValues.getKey(), value);
}
}
if (reallyAllSkipped) {
// Null = skip the chart
return null;
}
data.put("values", values);
return data;
}
}
/**
* Represents a custom single line chart.
*/
public static class SingleLineChart extends CustomChart {
private final Callable<Integer> callable;
/**
* Class constructor.
*
* @param chartId The id of the chart.
* @param callable The callable which is used to request the chart data.
*/
public SingleLineChart(String chartId, Callable<Integer> callable) {
super(chartId);
this.callable = callable;
}
@Override
protected JSONObject getChartData() throws Exception {
JSONObject data = new JSONObject();
int value = callable.call();
if (value == 0) {
// Null = skip the chart
return null;
}
data.put("value", value);
return data;
}
}
/**
* Represents a custom multi line chart.
*/
public static class MultiLineChart extends CustomChart {
private final Callable<Map<String, Integer>> callable;
/**
* Class constructor.
*
* @param chartId The id of the chart.
* @param callable The callable which is used to request the chart data.
*/
public MultiLineChart(String chartId, Callable<Map<String, Integer>> callable) {
super(chartId);
this.callable = callable;
}
@Override
protected JSONObject getChartData() throws Exception {
JSONObject data = new JSONObject();
JSONObject values = new JSONObject();
Map<String, Integer> map = callable.call();
if (map == null || map.isEmpty()) {
// Null = skip the chart
return null;
}
boolean allSkipped = true;
for (Map.Entry<String, Integer> entry : map.entrySet()) {
if (entry.getValue() == 0) {
continue; // Skip this invalid
}
allSkipped = false;
values.put(entry.getKey(), entry.getValue());
}
if (allSkipped) {
// Null = skip the chart
return null;
}
data.put("values", values);
return data;
}
}
/**
* Represents a custom simple bar chart.
*/
public static class SimpleBarChart extends CustomChart {
private final Callable<Map<String, Integer>> callable;
/**
* Class constructor.
*
* @param chartId The id of the chart.
* @param callable The callable which is used to request the chart data.
*/
public SimpleBarChart(String chartId, Callable<Map<String, Integer>> callable) {
super(chartId);
this.callable = callable;
}
@Override
protected JSONObject getChartData() throws Exception {
JSONObject data = new JSONObject();
JSONObject values = new JSONObject();
Map<String, Integer> map = callable.call();
if (map == null || map.isEmpty()) {
// Null = skip the chart
return null;
}
for (Map.Entry<String, Integer> entry : map.entrySet()) {
JSONArray categoryValues = new JSONArray();
categoryValues.add(entry.getValue());
values.put(entry.getKey(), categoryValues);
}
data.put("values", values);
return data;
}
}
/**
* Represents a custom advanced bar chart.
*/
public static class AdvancedBarChart extends CustomChart {
private final Callable<Map<String, int[]>> callable;
/**
* Class constructor.
*
* @param chartId The id of the chart.
* @param callable The callable which is used to request the chart data.
*/
public AdvancedBarChart(String chartId, Callable<Map<String, int[]>> callable) {
super(chartId);
this.callable = callable;
}
@Override
protected JSONObject getChartData() throws Exception {
JSONObject data = new JSONObject();
JSONObject values = new JSONObject();
Map<String, int[]> map = callable.call();
if (map == null || map.isEmpty()) {
// Null = skip the chart
return null;
}
boolean allSkipped = true;
for (Map.Entry<String, int[]> entry : map.entrySet()) {
if (entry.getValue().length == 0) {
continue; // Skip this invalid
}
allSkipped = false;
JSONArray categoryValues = new JSONArray();
for (int categoryValue : entry.getValue()) {
categoryValues.add(categoryValue);
}
values.put(entry.getKey(), categoryValues);
}
if (allSkipped) {
// Null = skip the chart
return null;
}
data.put("values", values);
return data;
}
}
}
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