mirror of
https://github.com/CitizensDev/Citizens2.git
synced 2024-11-06 10:50:22 +01:00
630 lines
20 KiB
Java
630 lines
20 KiB
Java
/*
|
|
* Copyright 2011 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 net.citizensnpcs;
|
|
|
|
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.UUID;
|
|
import java.util.logging.Level;
|
|
|
|
import org.bukkit.Bukkit;
|
|
import org.bukkit.configuration.InvalidConfigurationException;
|
|
import org.bukkit.configuration.file.YamlConfiguration;
|
|
import org.bukkit.plugin.Plugin;
|
|
import org.bukkit.plugin.PluginDescriptionFile;
|
|
|
|
/**
|
|
* <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(Metrics.Plotter plotter); <br/>
|
|
* void start(); <br/>
|
|
* </code>
|
|
*/
|
|
public class Metrics {
|
|
|
|
/**
|
|
* The plugin configuration file
|
|
*/
|
|
private final YamlConfiguration configuration;
|
|
|
|
/**
|
|
* The plugin configuration file
|
|
*/
|
|
private final File configurationFile;
|
|
|
|
/**
|
|
* The default graph, used for addCustomData when you don't want a specific
|
|
* graph
|
|
*/
|
|
private final Graph defaultGraph = new Graph("Default");
|
|
|
|
/**
|
|
* All of the custom graphs to submit to metrics
|
|
*/
|
|
private final Set<Graph> graphs = Collections.synchronizedSet(new HashSet<Graph>());
|
|
|
|
/**
|
|
* Unique server id
|
|
*/
|
|
private final String guid;
|
|
|
|
/**
|
|
* Lock for synchronization
|
|
*/
|
|
private final Object optOutLock = new Object();
|
|
|
|
/**
|
|
* The plugin this metrics submits for
|
|
*/
|
|
private final Plugin plugin;
|
|
|
|
/**
|
|
* Id of the scheduled task
|
|
*/
|
|
private volatile int taskId = -1;
|
|
|
|
public Metrics(final Plugin plugin) throws IOException {
|
|
if (plugin == null) {
|
|
throw new IllegalArgumentException("Plugin cannot be null");
|
|
}
|
|
|
|
this.plugin = plugin;
|
|
|
|
// load the config
|
|
configurationFile = new File(CONFIG_FILE);
|
|
configuration = YamlConfiguration.loadConfiguration(configurationFile);
|
|
|
|
// add some defaults
|
|
configuration.addDefault("opt-out", false);
|
|
configuration.addDefault("guid", UUID.randomUUID().toString());
|
|
|
|
// 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");
|
|
}
|
|
|
|
/**
|
|
* Adds a custom data plotter to the default graph
|
|
*
|
|
* @param plotter
|
|
*/
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* @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;
|
|
}
|
|
|
|
/**
|
|
* Disables metrics for the server by setting "opt-out" to true in the
|
|
* config file and canceling the metrics task.
|
|
*
|
|
* @throws 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 (taskId > 0) {
|
|
this.plugin.getServer().getScheduler().cancelTask(taskId);
|
|
taskId = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Enables metrics for the server by setting "opt-out" to false in the
|
|
* config file and starting the metrics task.
|
|
*
|
|
* @throws 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 (taskId < 0) {
|
|
start();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if mineshafter is present. If it is, we need to bypass it to send
|
|
* POST requests
|
|
*
|
|
* @return
|
|
*/
|
|
private boolean isMineshafterPresent() {
|
|
try {
|
|
Class.forName("mineshafter.MineServer");
|
|
return true;
|
|
} catch (Exception e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Has the server owner denied plugin metrics?
|
|
*
|
|
* @return
|
|
*/
|
|
public boolean isOptOut() {
|
|
synchronized (optOutLock) {
|
|
try {
|
|
// Reload the metrics file
|
|
configuration.load(CONFIG_FILE);
|
|
} catch (IOException ex) {
|
|
Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
|
|
return true;
|
|
} catch (InvalidConfigurationException ex) {
|
|
Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
|
|
return true;
|
|
}
|
|
return configuration.getBoolean("opt-out", false);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generic method that posts a plugin to the metrics website
|
|
*/
|
|
private void postPlugin(final boolean isPing) throws IOException {
|
|
// The plugin's description file containg all of the plugin data such as
|
|
// name, version, author, etc
|
|
final PluginDescriptionFile description = plugin.getDescription();
|
|
|
|
// Construct the post data
|
|
final StringBuilder data = new StringBuilder();
|
|
data.append(encode("guid")).append('=').append(encode(guid));
|
|
encodeDataPair(data, "version", description.getVersion());
|
|
encodeDataPair(data, "server", Bukkit.getVersion());
|
|
encodeDataPair(data, "players", Integer.toString(Bukkit.getServer().getOnlinePlayers().length));
|
|
encodeDataPair(data, "revision", String.valueOf(REVISION));
|
|
|
|
// 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();
|
|
|
|
// Because we have a lock on the graphs set already, it is
|
|
// reasonable to assume
|
|
// that our lock transcends down to the individual plotters in
|
|
// the graphs also.
|
|
// Because our methods are private, no one but us can reasonably
|
|
// access this list
|
|
// without reflection so this is a safe assumption without
|
|
// adding more code.
|
|
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(plugin.getDescription().getName())));
|
|
|
|
// 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();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// if (response.startsWith("OK")) - We should get "OK" followed by an
|
|
// optional description if everything goes right
|
|
}
|
|
|
|
/**
|
|
* 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 (taskId >= 0) {
|
|
return true;
|
|
}
|
|
|
|
// Begin hitting the server with glorious data
|
|
taskId = plugin.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new Runnable() {
|
|
|
|
private boolean firstPost = true;
|
|
|
|
@Override
|
|
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() && taskId > 0) {
|
|
plugin.getServer().getScheduler().cancelTask(taskId);
|
|
taskId = -1;
|
|
}
|
|
}
|
|
|
|
// 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) {
|
|
Bukkit.getLogger().log(Level.INFO, "[Metrics] " + e.getMessage());
|
|
}
|
|
}
|
|
}, 0, PING_INTERVAL * 1200);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
}
|
|
|
|
/**
|
|
* Add a plotter to the graph, which will be used to plot entries
|
|
*
|
|
* @param plotter
|
|
*/
|
|
public void addPlotter(final Plotter plotter) {
|
|
plotters.add(plotter);
|
|
}
|
|
|
|
@Override
|
|
public boolean equals(final Object object) {
|
|
if (!(object instanceof Graph)) {
|
|
return false;
|
|
}
|
|
|
|
final Graph graph = (Graph) object;
|
|
return graph.name.equals(name);
|
|
}
|
|
|
|
/**
|
|
* Gets the graph's name
|
|
*
|
|
* @return
|
|
*/
|
|
public String getName() {
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* Gets an <b>unmodifiable</b> set of the plotter objects in the graph
|
|
*
|
|
* @return
|
|
*/
|
|
public Set<Plotter> getPlotters() {
|
|
return Collections.unmodifiableSet(plotters);
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
return name.hashCode();
|
|
}
|
|
|
|
/**
|
|
* Remove a plotter from the graph
|
|
*
|
|
* @param plotter
|
|
*/
|
|
public void removePlotter(final Plotter plotter) {
|
|
plotters.remove(plotter);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
public Plotter(final String name) {
|
|
this.name = name;
|
|
}
|
|
|
|
@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();
|
|
}
|
|
|
|
/**
|
|
* Get the column name for the plotted point
|
|
*
|
|
* @return the plotted point's column name
|
|
*/
|
|
public String getColumnName() {
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* Get the current value for the plotted point
|
|
*
|
|
* @return
|
|
*/
|
|
public abstract int getValue();
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
return getColumnName().hashCode() + getValue();
|
|
}
|
|
|
|
/**
|
|
* Called after the website graphs have been updated
|
|
*/
|
|
public void reset() {
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* The base url of the metrics domain
|
|
*/
|
|
private static final String BASE_URL = "http://mcstats.org";
|
|
|
|
/**
|
|
* The file where guid and opt out is stored in
|
|
*/
|
|
private static final String CONFIG_FILE = "plugins/PluginMetrics/config.yml";
|
|
|
|
/**
|
|
* 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;
|
|
|
|
/**
|
|
* The url used to report a server's status
|
|
*/
|
|
private static final String REPORT_URL = "/report/%s";
|
|
|
|
/**
|
|
* The current revision number
|
|
*/
|
|
private final static int REVISION = 5;
|
|
|
|
/**
|
|
* Encode text as UTF-8
|
|
*
|
|
* @param text
|
|
* @return
|
|
*/
|
|
private static String encode(final String text) throws UnsupportedEncodingException {
|
|
return URLEncoder.encode(text, "UTF-8");
|
|
}
|
|
|
|
/**
|
|
* <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
|
|
* @param key
|
|
* @param value
|
|
* @return
|
|
*/
|
|
private static void encodeDataPair(final StringBuilder buffer, final String key, final String value)
|
|
throws UnsupportedEncodingException {
|
|
buffer.append('&').append(encode(key)).append('=').append(encode(value));
|
|
}
|
|
|
|
} |