mirror of
https://github.com/IntellectualSites/PlotSquared.git
synced 2024-11-23 13:46:45 +01:00
714 lines
26 KiB
Java
714 lines
26 KiB
Java
////////////////////////////////////////////////////////////////////////////////////////////////////
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// PlotSquared - A plot manager and world generator for the Bukkit API /
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// Copyright (c) 2014 IntellectualSites/IntellectualCrafters /
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// /
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// This program is free software; you can redistribute it and/or modify /
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// it under the terms of the GNU General Public License as published by /
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// the Free Software Foundation; either version 3 of the License, or /
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// (at your option) any later version. /
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// /
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// This program is distributed in the hope that it will be useful, /
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// but WITHOUT ANY WARRANTY; without even the implied warranty of /
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the /
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// GNU General Public License for more details. /
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// /
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// You should have received a copy of the GNU General Public License /
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// along with this program; if not, write to the Free Software Foundation, /
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// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA /
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// /
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// You can contact us via: support@intellectualsites.com /
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////////////////////////////////////////////////////////////////////////////////////////////////////
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package com.plotsquared.bukkit.util;
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import java.io.BufferedReader;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.lang.reflect.InvocationTargetException;
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import java.net.Proxy;
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import java.net.URL;
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import java.net.URLConnection;
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import java.net.URLEncoder;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.LinkedHashSet;
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import java.util.Set;
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import java.util.UUID;
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import java.util.logging.Level;
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import java.util.zip.GZIPOutputStream;
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import org.bukkit.Bukkit;
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import org.bukkit.entity.Player;
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import org.bukkit.plugin.Plugin;
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import org.bukkit.plugin.PluginDescriptionFile;
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import org.bukkit.scheduler.BukkitTask;
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import com.intellectualcrafters.configuration.InvalidConfigurationException;
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import com.intellectualcrafters.configuration.file.YamlConfiguration;
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import com.intellectualcrafters.plot.PS;
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public class Metrics {
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/**
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* The current revision number
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*/
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private final static int REVISION = 7;
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/**
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* The base url of the metrics domain
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*/
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private static final String BASE_URL = "http://report.mcstats.org";
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/**
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* The url used to report a server's status
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*/
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private static final String REPORT_URL = "/plugin/%s";
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/**
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* Interval of time to ping (in minutes)
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*/
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private static final int PING_INTERVAL = 15;
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/**
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* The plugin this metrics submits for
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*/
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private final Plugin plugin;
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/**
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* All of the custom graphs to submit to metrics
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*/
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private final Set<Graph> graphs = Collections.synchronizedSet(new HashSet<Graph>());
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/**
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* The plugin configuration file
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*/
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private final YamlConfiguration configuration;
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/**
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* The plugin configuration file
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*/
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private final File configurationFile;
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/**
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* Unique server id
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*/
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private final String guid;
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/**
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* Debug mode
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*/
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private final boolean debug;
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/**
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* Lock for synchronization
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*/
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private final Object optOutLock = new Object();
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/**
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* The scheduled task
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*/
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private volatile BukkitTask task = null;
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public Metrics(final Plugin plugin) throws IOException {
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if (plugin == null) {
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throw new IllegalArgumentException("Plugin cannot be null");
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}
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this.plugin = plugin;
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// load the config
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this.configurationFile = getConfigFile();
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this.configuration = YamlConfiguration.loadConfiguration(this.configurationFile);
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// add some defaults
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this.configuration.addDefault("opt-out", false);
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this.configuration.addDefault("guid", UUID.randomUUID().toString());
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this.configuration.addDefault("debug", false);
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// Do we need to create the file?
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if (this.configuration.get("guid", null) == null) {
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this.configuration.options().header("http://mcstats.org").copyDefaults(true);
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this.configuration.save(this.configurationFile);
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}
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// Load the guid then
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this.guid = this.configuration.getString("guid");
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this.debug = this.configuration.getBoolean("debug", false);
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}
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/**
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* GZip compress a string of bytes
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*
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* @param input
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*
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* @return byte[] the file as a byte array
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*/
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public static byte[] gzip(final String input) {
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final ByteArrayOutputStream baos = new ByteArrayOutputStream();
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GZIPOutputStream gzos = null;
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try {
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gzos = new GZIPOutputStream(baos);
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gzos.write(input.getBytes("UTF-8"));
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} catch (final IOException e) {
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e.printStackTrace();
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} finally {
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if (gzos != null) {
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try {
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gzos.close();
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} catch (final IOException ignore) {
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}
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}
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}
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return baos.toByteArray();
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}
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/**
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* Appends a json encoded key/value pair to the given string builder.
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*
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* @param json
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* @param key
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* @param value
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*
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* @throws UnsupportedEncodingException
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*/
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private static void appendJSONPair(final StringBuilder json, final String key, final String value) throws UnsupportedEncodingException {
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boolean isValueNumeric = false;
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try {
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if (value.equals("0") || !value.endsWith("0")) {
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Double.parseDouble(value);
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isValueNumeric = true;
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}
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} catch (final NumberFormatException e) {
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isValueNumeric = false;
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}
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if (json.charAt(json.length() - 1) != '{') {
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json.append(',');
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}
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json.append(escapeJSON(key));
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json.append(':');
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if (isValueNumeric) {
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json.append(value);
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} else {
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json.append(escapeJSON(value));
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}
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}
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/**
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* Escape a string to create a valid JSON string
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*
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* @param text
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*
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* @return String
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*/
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private static String escapeJSON(final String text) {
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final StringBuilder builder = new StringBuilder();
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builder.append('"');
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for (int index = 0; index < text.length(); index++) {
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final char chr = text.charAt(index);
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switch (chr) {
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case '"':
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case '\\':
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builder.append('\\');
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builder.append(chr);
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break;
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case '\b':
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builder.append("\\b");
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break;
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case '\t':
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builder.append("\\t");
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break;
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case '\n':
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builder.append("\\n");
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break;
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case '\r':
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builder.append("\\r");
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break;
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default:
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if (chr < ' ') {
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final String t = "000" + Integer.toHexString(chr);
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builder.append("\\u" + t.substring(t.length() - 4));
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} else {
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builder.append(chr);
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}
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break;
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}
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}
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builder.append('"');
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return builder.toString();
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}
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/**
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* Encode text as UTF-8
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*
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* @param text the text to encode
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*
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* @return the encoded text, as UTF-8
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*/
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private static String urlEncode(final String text) throws UnsupportedEncodingException {
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return URLEncoder.encode(text, "UTF-8");
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}
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/**
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* Construct and create a Graph that can be used to separate specific plotters to their own graphs on the metrics
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* website. Plotters can be added to the graph object returned.
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*
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* @param name The name of the graph
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*
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* @return Graph object created. Will never return NULL under normal circumstances unless bad parameters are given
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*/
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public Graph createGraph(final String name) {
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if (name == null) {
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throw new IllegalArgumentException("Graph name cannot be null");
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}
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// Construct the graph object
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final Graph graph = new Graph(name);
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// Now we can add our graph
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this.graphs.add(graph);
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// and return back
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return graph;
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}
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/**
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* Add a Graph object to BukkitMetrics that represents data for the plugin that should be sent to the backend
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*
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* @param graph The name of the graph
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*/
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public void addGraph(final Graph graph) {
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if (graph == null) {
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throw new IllegalArgumentException("Graph cannot be null");
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}
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this.graphs.add(graph);
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}
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/**
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* Start measuring statistics. This will immediately create an async repeating task as the plugin and send the
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* initial data to the metrics backend, and then after that it will post in increments of PING_INTERVAL * 1200
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* ticks.
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*
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* @return True if statistics measuring is running, otherwise false.
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*/
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public boolean start() {
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synchronized (this.optOutLock) {
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// Did we opt out?
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if (isOptOut()) {
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return false;
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}
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// Is metrics already running?
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if (this.task != null) {
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return true;
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}
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// Begin hitting the server with glorious data
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this.task = this.plugin.getServer().getScheduler().runTaskTimerAsynchronously(this.plugin, new Runnable() {
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private boolean firstPost = true;
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@Override
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public void run() {
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try {
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// This has to be synchronized or it can collide
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// with
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// the disable method.
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synchronized (Metrics.this.optOutLock) {
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// Disable Task, if it is running and the
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// server
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// owner decided to opt-out
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if (isOptOut() && (Metrics.this.task != null)) {
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Metrics.this.task.cancel();
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Metrics.this.task = null;
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// Tell all plotters to stop gathering
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// information.
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for (final Graph graph : Metrics.this.graphs) {
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graph.onOptOut();
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}
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}
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}
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// We use the inverse of firstPost because if it
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// is the
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// first time we are posting,
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// it is not a interval ping, so it evaluates to
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// FALSE
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// Each time thereafter it will evaluate to
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// TRUE, i.e
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// PING!
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postPlugin(!this.firstPost);
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// After the first post we set firstPost to
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// false
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// Each post thereafter will be a ping
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this.firstPost = false;
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} catch (final IOException e) {
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if (Metrics.this.debug) {
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Bukkit.getLogger().log(Level.INFO, "[Metrics] " + e.getMessage());
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}
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}
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}
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}, 0, PING_INTERVAL * 1200);
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return true;
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}
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}
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/**
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* Has the server owner denied plugin metrics?
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*
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* @return true if metrics should be opted out of it
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*/
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public boolean isOptOut() {
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synchronized (this.optOutLock) {
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try {
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// Reload the metrics file
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this.configuration.load(getConfigFile());
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} catch (final IOException ex) {
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if (this.debug) {
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Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
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}
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return true;
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} catch (final InvalidConfigurationException ex) {
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if (this.debug) {
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Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
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}
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return true;
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}
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return this.configuration.getBoolean("opt-out", false);
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}
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}
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/**
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* Enables metrics for the server by setting "opt-out" to false in the config file and starting the metrics task.
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*
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* @throws java.io.IOException
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*/
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public void enable() throws IOException {
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// This has to be synchronized or it can collide with the check in the
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// task.
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synchronized (this.optOutLock) {
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// Check if the server owner has already set opt-out, if not, set
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// it.
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if (isOptOut()) {
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this.configuration.set("opt-out", false);
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this.configuration.save(this.configurationFile);
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}
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// Enable Task, if it is not running
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if (this.task == null) {
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start();
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}
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}
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}
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/**
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* Disables metrics for the server by setting "opt-out" to true in the config file and canceling the metrics task.
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*
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* @throws java.io.IOException
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*/
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public void disable() throws IOException {
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// This has to be synchronized or it can collide with the check in the
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// task.
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synchronized (this.optOutLock) {
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// Check if the server owner has already set opt-out, if not, set
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// it.
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if (!isOptOut()) {
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this.configuration.set("opt-out", true);
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this.configuration.save(this.configurationFile);
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}
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// Disable Task, if it is running
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if (this.task != null) {
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this.task.cancel();
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this.task = null;
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}
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}
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}
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/**
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* Gets the File object of the config file that should be used to store data such as the GUID and opt-out status
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*
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* @return the File object for the config file
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*/
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public File getConfigFile() {
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// I believe the easiest way to get the base folder (e.g craftbukkit set
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// via -P) for plugins to use
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// is to abuse the plugin object we already have
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// plugin.getDataFolder() => base/plugins/PluginA/
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// pluginsFolder => base/plugins/
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// The base is not necessarily relative to the startup directory.
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final File pluginsFolder = this.plugin.getDataFolder().getParentFile();
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// return => base/plugins/PluginMetrics/config.yml
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return new File(new File(pluginsFolder, "PluginMetrics"), "config.yml");
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}
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/**
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* Generic method that posts a plugin to the metrics website
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*/
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private void postPlugin(final boolean isPing) throws IOException {
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// Server software specific section
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final PluginDescriptionFile description = this.plugin.getDescription();
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final String pluginName = description.getName();
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final boolean onlineMode = Bukkit.getServer().getOnlineMode(); // TRUE
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// if
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// online
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// mode
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// is
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// enabled
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final String pluginVersion = description.getVersion();
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final String serverVersion = Bukkit.getVersion();
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int playersOnline = 0;
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try {
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if (Bukkit.class.getMethod("getOnlinePlayers", new Class<?>[0]).getReturnType() == Collection.class) {
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playersOnline = ((Collection<?>) Bukkit.class.getMethod("getOnlinePlayers", new Class<?>[0]).invoke(null, new Object[0])).size();
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} else {
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playersOnline = ((Player[]) Bukkit.class.getMethod("getOnlinePlayers", new Class<?>[0]).invoke(null, new Object[0])).length;
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}
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} catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException ex) {
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}
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// END server software specific section -- all code below does not use
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// any code outside of this class / Java
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// Construct the post data
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final StringBuilder json = new StringBuilder(1024);
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json.append('{');
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// The plugin's description file containg all of the plugin data such as
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// name, version, author, etc
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appendJSONPair(json, "guid", this.guid);
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appendJSONPair(json, "plugin_version", pluginVersion);
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appendJSONPair(json, "server_version", serverVersion);
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appendJSONPair(json, "players_online", Integer.toString(playersOnline));
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// New data as of R6
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final String osname = System.getProperty("os.name");
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String osarch = System.getProperty("os.arch");
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final String osversion = System.getProperty("os.version");
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final String java_version = System.getProperty("java.version");
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final int coreCount = Runtime.getRuntime().availableProcessors();
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// normalize os arch .. amd64 -> x86_64
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if (osarch.equals("amd64")) {
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osarch = "x86_64";
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}
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appendJSONPair(json, "osname", osname);
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appendJSONPair(json, "osarch", osarch);
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appendJSONPair(json, "osversion", osversion);
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appendJSONPair(json, "cores", Integer.toString(coreCount));
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appendJSONPair(json, "auth_mode", onlineMode ? "1" : "0");
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appendJSONPair(json, "java_version", java_version);
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// If we're pinging, append it
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if (isPing) {
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appendJSONPair(json, "ping", "1");
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}
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if (this.graphs.size() > 0) {
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synchronized (this.graphs) {
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json.append(',');
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json.append('"');
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json.append("graphs");
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json.append('"');
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json.append(':');
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json.append('{');
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boolean firstGraph = true;
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for (final Graph graph : this.graphs) {
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final StringBuilder graphJson = new StringBuilder();
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graphJson.append('{');
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for (final Plotter plotter : graph.getPlotters()) {
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appendJSONPair(graphJson, plotter.getColumnName(), Integer.toString(plotter.getValue()));
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}
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graphJson.append('}');
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if (!firstGraph) {
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json.append(',');
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}
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json.append(escapeJSON(graph.getName()));
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json.append(':');
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json.append(graphJson);
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firstGraph = false;
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}
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json.append('}');
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}
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}
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// close json
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json.append('}');
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// Create the url
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final URL url = new URL(BASE_URL + String.format(REPORT_URL, urlEncode(pluginName)));
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// Connect to the website
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URLConnection connection;
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// Mineshafter creates a socks proxy, so we can safely bypass it
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// It does not reroute POST requests so we need to go around it
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if (isMineshafterPresent()) {
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connection = url.openConnection(Proxy.NO_PROXY);
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} else {
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connection = url.openConnection();
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}
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final byte[] uncompressed = json.toString().getBytes();
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final byte[] compressed = gzip(json.toString());
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// Headers
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connection.addRequestProperty("User-Agent", "MCStats/" + REVISION);
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connection.addRequestProperty("Content-Type", "application/json");
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connection.addRequestProperty("Content-Encoding", "gzip");
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connection.addRequestProperty("Content-Length", Integer.toString(compressed.length));
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connection.addRequestProperty("Accept", "application/json");
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connection.addRequestProperty("Connection", "close");
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connection.setDoOutput(true);
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if (this.debug) {
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PS.debug("[Metrics] Prepared request for " + pluginName + " uncompressed=" + uncompressed.length + " compressed=" + compressed.length);
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}
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// Write the data
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|
final OutputStream os = connection.getOutputStream();
|
|
os.write(compressed);
|
|
os.flush();
|
|
// Now read the response
|
|
final BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
|
|
String response = reader.readLine();
|
|
// close resources
|
|
os.close();
|
|
reader.close();
|
|
if ((response == null) || response.startsWith("ERR") || response.startsWith("7")) {
|
|
if (response == null) {
|
|
response = "null";
|
|
} else if (response.startsWith("7")) {
|
|
response = response.substring(response.startsWith("7,") ? 2 : 1);
|
|
}
|
|
throw new IOException(response);
|
|
} else {
|
|
// Is this the first update this hour?
|
|
if (response.equals("1") || response.contains("This is your first update this hour")) {
|
|
synchronized (this.graphs) {
|
|
for (final Graph graph : this.graphs) {
|
|
for (final Plotter plotter : graph.getPlotters()) {
|
|
plotter.reset();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if mineshafter is present. If it is, we need to bypass it to send POST requests
|
|
*
|
|
* @return true if mineshafter is installed on the server
|
|
*/
|
|
private boolean isMineshafterPresent() {
|
|
try {
|
|
Class.forName("mineshafter.MineServer");
|
|
return true;
|
|
} catch (final Exception e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Represents a custom graph on the website
|
|
*/
|
|
public static class Graph {
|
|
/**
|
|
* The graph's name, alphanumeric and spaces only :) If it does not comply to the above when submitted, it is
|
|
* rejected
|
|
*/
|
|
private final String name;
|
|
/**
|
|
* The set of plotters that are contained within this graph
|
|
*/
|
|
private final Set<Plotter> plotters = new LinkedHashSet<Plotter>();
|
|
|
|
private Graph(final String name) {
|
|
this.name = name;
|
|
}
|
|
|
|
/**
|
|
* Gets the graph's name
|
|
*
|
|
* @return the Graph's name
|
|
*/
|
|
public String getName() {
|
|
return this.name;
|
|
}
|
|
|
|
/**
|
|
* Add a plotter to the graph, which will be used to plot entries
|
|
*
|
|
* @param plotter the plotter to add to the graph
|
|
*/
|
|
public void addPlotter(final Plotter plotter) {
|
|
this.plotters.add(plotter);
|
|
}
|
|
|
|
/**
|
|
* Remove a plotter from the graph
|
|
*
|
|
* @param plotter the plotter to remove from the graph
|
|
*/
|
|
public void removePlotter(final Plotter plotter) {
|
|
this.plotters.remove(plotter);
|
|
}
|
|
|
|
/**
|
|
* Gets an <b>unmodifiable</b> set of the plotter objects in the graph
|
|
*
|
|
* @return an unmodifiable {@link java.util.Set} of the plotter objects
|
|
*/
|
|
public Set<Plotter> getPlotters() {
|
|
return Collections.unmodifiableSet(this.plotters);
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
return this.name.hashCode();
|
|
}
|
|
|
|
@Override
|
|
public boolean equals(final Object object) {
|
|
if (!(object instanceof Graph)) {
|
|
return false;
|
|
}
|
|
final Graph graph = (Graph) object;
|
|
return graph.name.equals(this.name);
|
|
}
|
|
|
|
/**
|
|
* Called when the server owner decides to opt-out of BukkitMetrics while the server is running.
|
|
*/
|
|
protected void onOptOut() {
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Interface used to collect custom data for a plugin
|
|
*/
|
|
public static abstract class Plotter {
|
|
/**
|
|
* The plot's name
|
|
*/
|
|
private final String name;
|
|
|
|
/**
|
|
* Construct a plotter with the default plot name
|
|
*/
|
|
public Plotter() {
|
|
this("Default");
|
|
}
|
|
|
|
/**
|
|
* Construct a plotter with a specific plot name
|
|
*
|
|
* @param name the name of the plotter to use, which will show up on the website
|
|
*/
|
|
public Plotter(final String name) {
|
|
this.name = name;
|
|
}
|
|
|
|
/**
|
|
* Get the current value for the plotted point. Since this function defers to an external function it may or may
|
|
* not return immediately thus cannot be guaranteed to be thread friendly or safe. This function can be called
|
|
* from any thread so care should be taken when accessing resources that need to be synchronized.
|
|
*
|
|
* @return the current value for the point to be plotted.
|
|
*/
|
|
public abstract int getValue();
|
|
|
|
/**
|
|
* Get the column name for the plotted point
|
|
*
|
|
* @return the plotted point's column name
|
|
*/
|
|
public String getColumnName() {
|
|
return this.name;
|
|
}
|
|
|
|
/**
|
|
* Called after the website graphs have been updated
|
|
*/
|
|
public void reset() {
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
return getColumnName().hashCode();
|
|
}
|
|
|
|
@Override
|
|
public boolean equals(final Object object) {
|
|
if (!(object instanceof Plotter)) {
|
|
return false;
|
|
}
|
|
final Plotter plotter = (Plotter) object;
|
|
return plotter.name.equals(this.name) && (plotter.getValue() == getValue());
|
|
}
|
|
}
|
|
}
|