Paper/Spigot-Server-Patches/0022-RIP-metrics.patch

From d8b7ac10997877efad844eb952c8bea62a5fceff Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Sat, 7 Mar 2015 22:57:07 -0600
Subject: [PATCH] RIP metrics


diff --git a/src/main/java/org/spigotmc/Metrics.java b/src/main/java/org/spigotmc/Metrics.java
deleted file mode 100644
index a5fd59d..0000000
--- a/src/main/java/org/spigotmc/Metrics.java
+++ /dev/null
@@ -1,645 +0,0 @@
-/*
- * Copyright 2011-2013 Tyler Blair. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this list of
- *       conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice, this list
- *       of conditions and the following disclaimer in the documentation and/or other materials
- *       provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are those of the
- * authors and contributors and should not be interpreted as representing official policies,
- * either expressed or implied, of anybody else.
- */
-package org.spigotmc;
-
-import org.bukkit.Bukkit;
-import org.bukkit.configuration.file.YamlConfiguration;
-import org.bukkit.configuration.InvalidConfigurationException;
-import org.bukkit.plugin.Plugin;
-import org.bukkit.plugin.PluginDescriptionFile;
-import org.bukkit.scheduler.BukkitTask;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.OutputStreamWriter;
-import java.io.UnsupportedEncodingException;
-import java.net.Proxy;
-import java.net.URL;
-import java.net.URLConnection;
-import java.net.URLEncoder;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.LinkedHashSet;
-import java.util.Set;
-import java.util.Timer;
-import java.util.TimerTask;
-import java.util.UUID;
-import java.util.concurrent.TimeUnit;
-import java.util.logging.Level;
-import net.minecraft.server.MinecraftServer;
-
-/**
- * <p> The metrics class obtains data about a plugin and submits statistics about it to the metrics backend. </p> <p>
- * Public methods provided by this class: </p>
- * <code>
- * Graph createGraph(String name); <br/>
- * void addCustomData(BukkitMetrics.Plotter plotter); <br/>
- * void start(); <br/>
- * </code>
- */
-public class Metrics {
-
-    /**
-     * The current revision number
-     */
-    private final static int REVISION = 6;
-    /**
-     * The base url of the metrics domain
-     */
-    private static final String BASE_URL = "http://mcstats.org";
-    /**
-     * The url used to report a server's status
-     */
-    private static final String REPORT_URL = "/report/%s";
-    /**
-     * The separator to use for custom data. This MUST NOT change unless you are hosting your own version of metrics and
-     * want to change it.
-     */
-    private static final String CUSTOM_DATA_SEPARATOR = "~~";
-    /**
-     * Interval of time to ping (in minutes)
-     */
-    private static final int PING_INTERVAL = 10;
-    /**
-     * All of the custom graphs to submit to metrics
-     */
-    private final Set<Graph> graphs = Collections.synchronizedSet(new HashSet<Graph>());
-    /**
-     * The default graph, used for addCustomData when you don't want a specific graph
-     */
-    private final Graph defaultGraph = new Graph("Default");
-    /**
-     * The plugin configuration file
-     */
-    private final YamlConfiguration configuration;
-    /**
-     * The plugin configuration file
-     */
-    private final File configurationFile;
-    /**
-     * Unique server id
-     */
-    private final String guid;
-    /**
-     * Debug mode
-     */
-    private final boolean debug;
-    /**
-     * Lock for synchronization
-     */
-    private final Object optOutLock = new Object();
-    /**
-     * The scheduled task
-     */
-    private volatile Timer task = null;
-
-    public Metrics() throws IOException {
-        // load the config
-        configurationFile = getConfigFile();
-        configuration = YamlConfiguration.loadConfiguration(configurationFile);
-
-        // add some defaults
-        configuration.addDefault("opt-out", false);
-        configuration.addDefault("guid", UUID.randomUUID().toString());
-        configuration.addDefault("debug", false);
-
-        // Do we need to create the file?
-        if (configuration.get("guid", null) == null) {
-            configuration.options().header("http://mcstats.org").copyDefaults(true);
-            configuration.save(configurationFile);
-        }
-
-        // Load the guid then
-        guid = configuration.getString("guid");
-        debug = configuration.getBoolean("debug", false);
-    }
-
-    /**
-     * Construct and create a Graph that can be used to separate specific plotters to their own graphs on the metrics
-     * website. Plotters can be added to the graph object returned.
-     *
-     * @param name The name of the graph
-     * @return Graph object created. Will never return NULL under normal circumstances unless bad parameters are given
-     */
-    public Graph createGraph(final String name) {
-        if (name == null) {
-            throw new IllegalArgumentException("Graph name cannot be null");
-        }
-
-        // Construct the graph object
-        final Graph graph = new Graph(name);
-
-        // Now we can add our graph
-        graphs.add(graph);
-
-        // and return back
-        return graph;
-    }
-
-    /**
-     * Add a Graph object to BukkitMetrics that represents data for the plugin that should be sent to the backend
-     *
-     * @param graph The name of the graph
-     */
-    public void addGraph(final Graph graph) {
-        if (graph == null) {
-            throw new IllegalArgumentException("Graph cannot be null");
-        }
-
-        graphs.add(graph);
-    }
-
-    /**
-     * Adds a custom data plotter to the default graph
-     *
-     * @param plotter The plotter to use to plot custom data
-     */
-    public void addCustomData(final Plotter plotter) {
-        if (plotter == null) {
-            throw new IllegalArgumentException("Plotter cannot be null");
-        }
-
-        // Add the plotter to the graph o/
-        defaultGraph.addPlotter(plotter);
-
-        // Ensure the default graph is included in the submitted graphs
-        graphs.add(defaultGraph);
-    }
-
-    /**
-     * Start measuring statistics. This will immediately create an async repeating task as the plugin and send the
-     * initial data to the metrics backend, and then after that it will post in increments of PING_INTERVAL * 1200
-     * ticks.
-     *
-     * @return True if statistics measuring is running, otherwise false.
-     */
-    public boolean start() {
-        synchronized (optOutLock) {
-            // Did we opt out?
-            if (isOptOut()) {
-                return false;
-            }
-
-            // Is metrics already running?
-            if (task != null) {
-                return true;
-            }
-
-            // Begin hitting the server with glorious data
-            task = new Timer("Spigot Metrics Thread", true);
-
-            task.scheduleAtFixedRate(new TimerTask() {
-                private boolean firstPost = true;
-
-                public void run() {
-                    try {
-                        // This has to be synchronized or it can collide with the disable method.
-                        synchronized (optOutLock) {
-                            // Disable Task, if it is running and the server owner decided to opt-out
-                            if (isOptOut() && task != null) {
-                                task.cancel();
-                                task = null;
-                                // Tell all plotters to stop gathering information.
-                                for (Graph graph : graphs) {
-                                    graph.onOptOut();
-                                }
-                            }
-                        }
-
-                        // We use the inverse of firstPost because if it is the first time we are posting,
-                        // it is not a interval ping, so it evaluates to FALSE
-                        // Each time thereafter it will evaluate to TRUE, i.e PING!
-                        postPlugin(!firstPost);
-
-                        // After the first post we set firstPost to false
-                        // Each post thereafter will be a ping
-                        firstPost = false;
-                    } catch (IOException e) {
-                        if (debug) {
-                            Bukkit.getLogger().log(Level.INFO, "[Metrics] " + e.getMessage());
-                        }
-                    }
-                }
-            }, 0, TimeUnit.MINUTES.toMillis(PING_INTERVAL));
-
-            return true;
-        }
-    }
-
-    /**
-     * Has the server owner denied plugin metrics?
-     *
-     * @return true if metrics should be opted out of it
-     */
-    public boolean isOptOut() {
-        synchronized (optOutLock) {
-            try {
-                // Reload the metrics file
-                configuration.load(getConfigFile());
-            } catch (IOException ex) {
-                if (debug) {
-                    Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
-                }
-                return true;
-            } catch (InvalidConfigurationException ex) {
-                if (debug) {
-                    Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
-                }
-                return true;
-            }
-            return configuration.getBoolean("opt-out", false);
-        }
-    }
-
-    /**
-     * Enables metrics for the server by setting "opt-out" to false in the config file and starting the metrics task.
-     *
-     * @throws java.io.IOException
-     */
-    public void enable() throws IOException {
-        // This has to be synchronized or it can collide with the check in the task.
-        synchronized (optOutLock) {
-            // Check if the server owner has already set opt-out, if not, set it.
-            if (isOptOut()) {
-                configuration.set("opt-out", false);
-                configuration.save(configurationFile);
-            }
-
-            // Enable Task, if it is not running
-            if (task == null) {
-                start();
-            }
-        }
-    }
-
-    /**
-     * Disables metrics for the server by setting "opt-out" to true in the config file and canceling the metrics task.
-     *
-     * @throws java.io.IOException
-     */
-    public void disable() throws IOException {
-        // This has to be synchronized or it can collide with the check in the task.
-        synchronized (optOutLock) {
-            // Check if the server owner has already set opt-out, if not, set it.
-            if (!isOptOut()) {
-                configuration.set("opt-out", true);
-                configuration.save(configurationFile);
-            }
-
-            // Disable Task, if it is running
-            if (task != null) {
-                task.cancel();
-                task = null;
-            }
-        }
-    }
-
-    /**
-     * Gets the File object of the config file that should be used to store data such as the GUID and opt-out status
-     *
-     * @return the File object for the config file
-     */
-    public File getConfigFile() {
-        // I believe the easiest way to get the base folder (e.g craftbukkit set via -P) for plugins to use
-        // is to abuse the plugin object we already have
-        // plugin.getDataFolder() => base/plugins/PluginA/
-        // pluginsFolder => base/plugins/
-        // The base is not necessarily relative to the startup directory.
-        // File pluginsFolder = plugin.getDataFolder().getParentFile();
-
-        // return => base/plugins/PluginMetrics/config.yml
-        return new File(new File((File) MinecraftServer.getServer().options.valueOf("plugins"), "PluginMetrics"), "config.yml");
-    }
-
-    /**
-     * Generic method that posts a plugin to the metrics website
-     */
-    private void postPlugin(final boolean isPing) throws IOException {
-        // Server software specific section
-        String pluginName = "Spigot";
-        boolean onlineMode = Bukkit.getServer().getOnlineMode(); // TRUE if online mode is enabled
-        String pluginVersion = (Metrics.class.getPackage().getImplementationVersion() != null) ? Metrics.class.getPackage().getImplementationVersion() : "unknown";
-        String serverVersion = Bukkit.getVersion();
-        int playersOnline = Bukkit.getServer().getOnlinePlayers().size();
-
-        // END server software specific section -- all code below does not use any code outside of this class / Java
-
-        // Construct the post data
-        final StringBuilder data = new StringBuilder();
-
-        // The plugin's description file containg all of the plugin data such as name, version, author, etc
-        data.append(encode("guid")).append('=').append(encode(guid));
-        encodeDataPair(data, "version", pluginVersion);
-        encodeDataPair(data, "server", serverVersion);
-        encodeDataPair(data, "players", Integer.toString(playersOnline));
-        encodeDataPair(data, "revision", String.valueOf(REVISION));
-
-        // New data as of R6
-        String osname = System.getProperty("os.name");
-        String osarch = System.getProperty("os.arch");
-        String osversion = System.getProperty("os.version");
-        String java_version = System.getProperty("java.version");
-        int coreCount = Runtime.getRuntime().availableProcessors();
-
-        // normalize os arch .. amd64 -> x86_64
-        if (osarch.equals("amd64")) {
-            osarch = "x86_64";
-        }
-
-        encodeDataPair(data, "osname", osname);
-        encodeDataPair(data, "osarch", osarch);
-        encodeDataPair(data, "osversion", osversion);
-        encodeDataPair(data, "cores", Integer.toString(coreCount));
-        encodeDataPair(data, "online-mode", Boolean.toString(onlineMode));
-        encodeDataPair(data, "java_version", java_version);
-
-        // If we're pinging, append it
-        if (isPing) {
-            encodeDataPair(data, "ping", "true");
-        }
-
-        // Acquire a lock on the graphs, which lets us make the assumption we also lock everything
-        // inside of the graph (e.g plotters)
-        synchronized (graphs) {
-            final Iterator<Graph> iter = graphs.iterator();
-
-            while (iter.hasNext()) {
-                final Graph graph = iter.next();
-
-                for (Plotter plotter : graph.getPlotters()) {
-                    // The key name to send to the metrics server
-                    // The format is C-GRAPHNAME-PLOTTERNAME where separator - is defined at the top
-                    // Legacy (R4) submitters use the format Custom%s, or CustomPLOTTERNAME
-                    final String key = String.format("C%s%s%s%s", CUSTOM_DATA_SEPARATOR, graph.getName(), CUSTOM_DATA_SEPARATOR, plotter.getColumnName());
-
-                    // The value to send, which for the foreseeable future is just the string
-                    // value of plotter.getValue()
-                    final String value = Integer.toString(plotter.getValue());
-
-                    // Add it to the http post data :)
-                    encodeDataPair(data, key, value);
-                }
-            }
-        }
-
-        // Create the url
-        URL url = new URL(BASE_URL + String.format(REPORT_URL, encode(pluginName)));
-
-        // Connect to the website
-        URLConnection connection;
-
-        // Mineshafter creates a socks proxy, so we can safely bypass it
-        // It does not reroute POST requests so we need to go around it
-        if (isMineshafterPresent()) {
-            connection = url.openConnection(Proxy.NO_PROXY);
-        } else {
-            connection = url.openConnection();
-        }
-
-        connection.setDoOutput(true);
-
-        // Write the data
-        final OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
-        writer.write(data.toString());
-        writer.flush();
-
-        // Now read the response
-        final BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
-        final String response = reader.readLine();
-
-        // close resources
-        writer.close();
-        reader.close();
-
-        if (response == null || response.startsWith("ERR")) {
-            throw new IOException(response); //Throw the exception
-        } else {
-            // Is this the first update this hour?
-            if (response.contains("OK This is your first update this hour")) {
-                synchronized (graphs) {
-                    final Iterator<Graph> iter = graphs.iterator();
-
-                    while (iter.hasNext()) {
-                        final Graph graph = iter.next();
-
-                        for (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 (Exception e) {
-            return false;
-        }
-    }
-
-    /**
-     * <p>Encode a key/value data pair to be used in a HTTP post request. This INCLUDES a & so the first key/value pair
-     * MUST be included manually, e.g:</p>
-     * <code>
-     * StringBuffer data = new StringBuffer();
-     * data.append(encode("guid")).append('=').append(encode(guid));
-     * encodeDataPair(data, "version", description.getVersion());
-     * </code>
-     *
-     * @param buffer the stringbuilder to append the data pair onto
-     * @param key the key value
-     * @param value the value
-     */
-    private static void encodeDataPair(final StringBuilder buffer, final String key, final String value) throws UnsupportedEncodingException {
-        buffer.append('&').append(encode(key)).append('=').append(encode(value));
-    }
-
-    /**
-     * Encode text as UTF-8
-     *
-     * @param text the text to encode
-     * @return the encoded text, as UTF-8
-     */
-    private static String encode(final String text) throws UnsupportedEncodingException {
-        return URLEncoder.encode(text, "UTF-8");
-    }
-
-    /**
-     * 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 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) {
-            plotters.add(plotter);
-        }
-
-        /**
-         * Remove a plotter from the graph
-         *
-         * @param plotter the plotter to remove from the graph
-         */
-        public void removePlotter(final Plotter plotter) {
-            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(plotters);
-        }
-
-        @Override
-        public int hashCode() {
-            return name.hashCode();
-        }
-
-        @Override
-        public boolean equals(final Object object) {
-            if (!(object instanceof Graph)) {
-                return false;
-            }
-
-            final Graph graph = (Graph) object;
-            return graph.name.equals(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 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(name) && plotter.getValue() == getValue();
-        }
-    }
-}
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index c03388d..eeb1aec 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -47,7 +47,6 @@ public class SpigotConfig
     static int version;
     static Map<String, Command> commands;
     /*========================================================================*/
-    private static Metrics metrics;
 
     public static void init()
     {
@@ -79,18 +78,6 @@ public class SpigotConfig
         {
             MinecraftServer.getServer().server.getCommandMap().register( entry.getKey(), "Spigot", entry.getValue() );
         }
-
-        if ( metrics == null )
-        {
-            try
-            {
-                metrics = new Metrics();
-                metrics.start();
-            } catch ( IOException ex )
-            {
-                Bukkit.getServer().getLogger().log( Level.SEVERE, "Could not start metrics service", ex );
-            }
-        }
     }
 
     static void readConfig(Class<?> clazz, Object instance)
-- 
1.9.1