Gravity's Updater version 2.0

src/main/java/com/gmail/nossr50/mcMMO.java

@@ -49,9 +49,9 @@ import com.gmail.nossr50.util.commands.CommandRegistrationManager;
 import com.gmail.nossr50.util.experience.FormulaManager;
 import com.gmail.nossr50.util.player.UserManager;
 
-import net.h31ix.updater.mcmmo.Updater;
-import net.h31ix.updater.mcmmo.Updater.UpdateResult;
-import net.h31ix.updater.mcmmo.Updater.UpdateType;
+import net.gravitydevelopment.updater.mcmmo.Updater;
+import net.gravitydevelopment.updater.mcmmo.Updater.UpdateResult;
+import net.gravitydevelopment.updater.mcmmo.Updater.UpdateType;
 import net.shatteredlands.shatt.backup.ZipLibrary;
 
 public class mcMMO extends JavaPlugin {
@@ -312,14 +312,14 @@ public class mcMMO extends JavaPlugin {
             return;
         }
 
-        Updater updater = new Updater(this, "mcmmo", mcmmo, UpdateType.NO_DOWNLOAD, false);
+        Updater updater = new Updater(this, 31030, mcmmo, UpdateType.NO_DOWNLOAD, false);
 
         if (updater.getResult() != UpdateResult.UPDATE_AVAILABLE) {
             this.updateAvailable = false;
             return;
         }
 
-        if (updater.getLatestVersionString().contains("-beta") && !Config.getInstance().getPreferBeta()) {
+        if (updater.getLatestType().equals("beta") && !Config.getInstance().getPreferBeta()) {
             this.updateAvailable = false;
             return;
         }

src/main/java/net/gravitydevelopment/updater/mcmmo/Updater.java

@@ -0,0 +1,549 @@
+/*
+ * Updater for Bukkit.
+ *
+ * This class provides the means to safely and easily update a plugin, or check to see if it is updated using dev.bukkit.org
+ */
+
+package net.gravitydevelopment.updater.mcmmo;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.Enumeration;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.plugin.Plugin;
+
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+import org.json.simple.JSONValue;
+
+/**
+ * Check dev.bukkit.org to find updates for a given plugin, and download the updates if needed.
+ * <p/>
+ * <b>VERY, VERY IMPORTANT</b>: Because there are no standards for adding auto-update toggles in your plugin's config, this system provides NO CHECK WITH YOUR CONFIG to make sure the user has allowed auto-updating.
+ * <br>
+ * It is a <b>BUKKIT POLICY</b> that you include a boolean value in your config that prevents the auto-updater from running <b>AT ALL</b>.
+ * <br>
+ * If you fail to include this option in your config, your plugin will be <b>REJECTED</b> when you attempt to submit it to dev.bukkit.org.
+ * <p/>
+ * An example of a good configuration option would be something similar to 'auto-update: true' - if this value is set to false you may NOT run the auto-updater.
+ * <br>
+ * If you are unsure about these rules, please read the plugin submission guidelines: http://goo.gl/8iU5l
+ *
+ * @author Gravity
+ * @version 2.0
+ */
+
+public class Updater {
+
+    private Plugin plugin;
+    private UpdateType type;
+    private String versionName;
+    private String versionLink;
+    private String versionType;
+    private String versionGameVersion;
+
+    private boolean announce; // Whether to announce file downloads
+
+    private URL url; // Connecting to RSS
+    private File file; // The plugin's file
+    private Thread thread; // Updater thread
+
+    private int id = -1; // Project's Curse ID
+    private String apiKey = null; // BukkitDev ServerMods API key
+    private static final String TITLE_VALUE = "name"; // Gets remote file's title
+    private static final String LINK_VALUE = "downloadUrl"; // Gets remote file's download link
+    private static final String TYPE_VALUE = "releaseType"; // Gets remote file's release type
+    private static final String VERSION_VALUE = "gameVersion"; // Gets remote file's build version
+    private static final String QUERY = "/servermods/files?projectIds="; // Path to GET
+    private static final String HOST = "https://api.curseforge.com"; // Slugs will be appended to this to get to the project's RSS feed
+
+    private static final int BYTE_SIZE = 1024; // Used for downloading files
+    private YamlConfiguration config; // Config file
+    private String updateFolder;// The folder that downloads will be placed in
+    private Updater.UpdateResult result = Updater.UpdateResult.SUCCESS; // Used for determining the outcome of the update process
+
+    /**
+     * Gives the dev the result of the update process. Can be obtained by called getResult().
+     */
+    public enum UpdateResult {
+        /**
+         * The updater found an update, and has readied it to be loaded the next time the server restarts/reloads.
+         */
+        SUCCESS,
+        /**
+         * The updater did not find an update, and nothing was downloaded.
+         */
+        NO_UPDATE,
+        /**
+         * The server administrator has disabled the updating system
+         */
+        DISABLED,
+        /**
+         * The updater found an update, but was unable to download it.
+         */
+        FAIL_DOWNLOAD,
+        /**
+         * For some reason, the updater was unable to contact dev.bukkit.org to download the file.
+         */
+        FAIL_DBO,
+        /**
+         * When running the version check, the file on DBO did not contain the a version in the format 'vVersion' such as 'v1.0'.
+         */
+        FAIL_NOVERSION,
+        /**
+         * The id provided by the plugin running the updater was invalid and doesn't exist on DBO.
+         */
+        FAIL_BADID,
+        /**
+         * The server administrator has improperly configured their API key in the configuration
+         */
+        FAIL_APIKEY,
+        /**
+         * The updater found an update, but because of the UpdateType being set to NO_DOWNLOAD, it wasn't downloaded.
+         */
+        UPDATE_AVAILABLE
+    }
+
+    /**
+     * Allows the dev to specify the type of update that will be run.
+     */
+    public enum UpdateType {
+        /**
+         * Run a version check, and then if the file is out of date, download the newest version.
+         */
+        DEFAULT,
+        /**
+         * Don't run a version check, just find the latest update and download it.
+         */
+        NO_VERSION_CHECK,
+        /**
+         * Get information about the version and the download size, but don't actually download anything.
+         */
+        NO_DOWNLOAD
+    }
+
+    /**
+     * Initialize the updater
+     *
+     * @param plugin   The plugin that is checking for an update.
+     * @param id       The dev.bukkit.org id of the project
+     * @param file     The file that the plugin is running from, get this by doing this.getFile() from within your main class.
+     * @param type     Specify the type of update this will be. See {@link UpdateType}
+     * @param announce True if the program should announce the progress of new updates in console
+     */
+    public Updater(Plugin plugin, int id, File file, UpdateType type, boolean announce) {
+        this.plugin = plugin;
+        this.type = type;
+        this.announce = announce;
+        this.file = file;
+        this.id = id;
+        this.updateFolder = plugin.getServer().getUpdateFolder();
+
+        final File pluginFile = plugin.getDataFolder().getParentFile();
+        final File updaterFile = new File(pluginFile, "Updater");
+        final File updaterConfigFile = new File(updaterFile, "config.yml");
+
+        if (!updaterFile.exists()) {
+            updaterFile.mkdir();
+        }
+        if (!updaterConfigFile.exists()) {
+            try {
+                updaterConfigFile.createNewFile();
+            }
+            catch (final IOException e) {
+                plugin.getLogger().severe("The updater could not create a configuration in " + updaterFile.getAbsolutePath());
+                e.printStackTrace();
+            }
+        }
+        this.config = YamlConfiguration.loadConfiguration(updaterConfigFile);
+
+        this.config.options().header("This configuration file affects all plugins using the Updater system (version 2+ - http://forums.bukkit.org/threads/96681/ )" + '\n'
+                + "If you wish to use your API key, read http://wiki.bukkit.org/ServerMods_API and place it below." + '\n'
+                + "Some updating systems will not adhere to the disabled value, but these may be turned off in their plugin's configuration.");
+        this.config.addDefault("api-key", "PUT_API_KEY_HERE");
+        this.config.addDefault("disable", false);
+
+        if (this.config.get("api-key", null) == null) {
+            this.config.options().copyDefaults(true);
+            try {
+                this.config.save(updaterConfigFile);
+            }
+            catch (final IOException e) {
+                plugin.getLogger().severe("The updater could not save the configuration in " + updaterFile.getAbsolutePath());
+                e.printStackTrace();
+            }
+        }
+
+        if (this.config.getBoolean("disable")) {
+            this.result = UpdateResult.DISABLED;
+            return;
+        }
+
+        String key = this.config.getString("api-key");
+        if (key.equalsIgnoreCase("PUT_API_KEY_HERE") || key.equals("")) {
+            key = null;
+        }
+
+        this.apiKey = key;
+
+        try {
+            this.url = new URL(Updater.HOST + Updater.QUERY + id);
+        }
+        catch (final MalformedURLException e) {
+            plugin.getLogger().severe("The project ID provided for updating, " + id + " is invalid.");
+            this.result = UpdateResult.FAIL_BADID;
+            e.printStackTrace();
+        }
+
+        this.thread = new Thread(new UpdateRunnable());
+        this.thread.start();
+    }
+
+    /**
+     * Get the result of the update process.
+     */
+    public Updater.UpdateResult getResult() {
+        this.waitForThread();
+        return this.result;
+    }
+
+    /**
+     * Get the latest version's release type (release, beta, or alpha).
+     */
+    public String getLatestType() {
+        this.waitForThread();
+        return this.versionType;
+    }
+
+    /**
+     * Get the latest version's game version.
+     */
+    public String getLatestGameVersion() {
+        this.waitForThread();
+        return this.versionGameVersion;
+    }
+
+    /**
+     * Get the latest version's name.
+     */
+    public String getLatestName() {
+        this.waitForThread();
+        return this.versionName;
+    }
+
+    /**
+     * Get the latest version's file link.
+     */
+    public String getLatestFileLink() {
+        this.waitForThread();
+        return this.versionLink;
+    }
+
+    /**
+     * As the result of Updater output depends on the thread's completion, it is necessary to wait for the thread to finish
+     * before allowing anyone to check the result.
+     */
+    private void waitForThread() {
+        if ((this.thread != null) && this.thread.isAlive()) {
+            try {
+                this.thread.join();
+            }
+            catch (final InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Save an update from dev.bukkit.org into the server's update folder.
+     */
+    private void saveFile(File folder, String file, String u) {
+        if (!folder.exists()) {
+            folder.mkdir();
+        }
+        BufferedInputStream in = null;
+        FileOutputStream fout = null;
+        try {
+            // Download the file
+            final URL url = new URL(u);
+            final int fileLength = url.openConnection().getContentLength();
+            in = new BufferedInputStream(url.openStream());
+            fout = new FileOutputStream(folder.getAbsolutePath() + "/" + file);
+
+            final byte[] data = new byte[Updater.BYTE_SIZE];
+            int count;
+            if (this.announce) {
+                this.plugin.getLogger().info("About to download a new update: " + this.versionName);
+            }
+            long downloaded = 0;
+            while ((count = in.read(data, 0, Updater.BYTE_SIZE)) != -1) {
+                downloaded += count;
+                fout.write(data, 0, count);
+                final int percent = (int) ((downloaded * 100) / fileLength);
+                if (this.announce && ((percent % 10) == 0)) {
+                    this.plugin.getLogger().info("Downloading update: " + percent + "% of " + fileLength + " bytes.");
+                }
+            }
+            //Just a quick check to make sure we didn't leave any files from last time...
+            for (final File xFile : new File(this.plugin.getDataFolder().getParent(), this.updateFolder).listFiles()) {
+                if (xFile.getName().endsWith(".zip")) {
+                    xFile.delete();
+                }
+            }
+            // Check to see if it's a zip file, if it is, unzip it.
+            final File dFile = new File(folder.getAbsolutePath() + "/" + file);
+            if (dFile.getName().endsWith(".zip")) {
+                // Unzip
+                this.unzip(dFile.getCanonicalPath());
+            }
+            if (this.announce) {
+                this.plugin.getLogger().info("Finished updating.");
+            }
+        }
+        catch (final Exception ex) {
+            this.plugin.getLogger().warning("The auto-updater tried to download a new update, but was unsuccessful.");
+            this.result = Updater.UpdateResult.FAIL_DOWNLOAD;
+        }
+        finally {
+            try {
+                if (in != null) {
+                    in.close();
+                }
+                if (fout != null) {
+                    fout.close();
+                }
+            }
+            catch (final Exception ex) {
+            }
+        }
+    }
+
+    /**
+     * Part of Zip-File-Extractor, modified by Gravity for use with Bukkit
+     */
+    private void unzip(String file) {
+        try {
+            final File fSourceZip = new File(file);
+            final String zipPath = file.substring(0, file.length() - 4);
+            ZipFile zipFile = new ZipFile(fSourceZip);
+            Enumeration<? extends ZipEntry> e = zipFile.entries();
+            while (e.hasMoreElements()) {
+                ZipEntry entry = e.nextElement();
+                File destinationFilePath = new File(zipPath, entry.getName());
+                destinationFilePath.getParentFile().mkdirs();
+                if (entry.isDirectory()) {
+                    continue;
+                }
+                else {
+                    final BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));
+                    int b;
+                    final byte buffer[] = new byte[Updater.BYTE_SIZE];
+                    final FileOutputStream fos = new FileOutputStream(destinationFilePath);
+                    final BufferedOutputStream bos = new BufferedOutputStream(fos, Updater.BYTE_SIZE);
+                    while ((b = bis.read(buffer, 0, Updater.BYTE_SIZE)) != -1) {
+                        bos.write(buffer, 0, b);
+                    }
+                    bos.flush();
+                    bos.close();
+                    bis.close();
+                    final String name = destinationFilePath.getName();
+                    if (name.endsWith(".jar") && this.pluginFile(name)) {
+                        destinationFilePath.renameTo(new File(this.plugin.getDataFolder().getParent(), this.updateFolder + "/" + name));
+                    }
+                }
+                entry = null;
+                destinationFilePath = null;
+            }
+            e = null;
+            zipFile.close();
+            zipFile = null;
+
+            // Move any plugin data folders that were included to the right place, Bukkit won't do this for us.
+            for (final File dFile : new File(zipPath).listFiles()) {
+                if (dFile.isDirectory()) {
+                    if (this.pluginFile(dFile.getName())) {
+                        final File oFile = new File(this.plugin.getDataFolder().getParent(), dFile.getName()); // Get current dir
+                        final File[] contents = oFile.listFiles(); // List of existing files in the current dir
+                        for (final File cFile : dFile.listFiles()) // Loop through all the files in the new dir
+                        {
+                            boolean found = false;
+                            for (final File xFile : contents) // Loop through contents to see if it exists
+                            {
+                                if (xFile.getName().equals(cFile.getName())) {
+                                    found = true;
+                                    break;
+                                }
+                            }
+                            if (!found) {
+                                // Move the new file into the current dir
+                                cFile.renameTo(new File(oFile.getCanonicalFile() + "/" + cFile.getName()));
+                            }
+                            else {
+                                // This file already exists, so we don't need it anymore.
+                                cFile.delete();
+                            }
+                        }
+                    }
+                }
+                dFile.delete();
+            }
+            new File(zipPath).delete();
+            fSourceZip.delete();
+        }
+        catch (final IOException ex) {
+            this.plugin.getLogger().warning("The auto-updater tried to unzip a new update file, but was unsuccessful.");
+            this.result = Updater.UpdateResult.FAIL_DOWNLOAD;
+            ex.printStackTrace();
+        }
+        new File(file).delete();
+    }
+
+    /**
+     * Check if the name of a jar is one of the plugins currently installed, used for extracting the correct files out of a zip.
+     */
+    private boolean pluginFile(String name) {
+        for (final File file : new File("plugins").listFiles()) {
+            if (file.getName().equals(name)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Check to see if the program should continue by evaluation whether the plugin is already updated, or shouldn't be updated
+     */
+    private boolean versionCheck(String title) {
+        if (type != UpdateType.NO_VERSION_CHECK) {
+            String version = plugin.getDescription().getVersion();
+            title = title.substring(6);
+
+            String[] oldTokens = version.split("-");
+            String[] newTokens = title.split("-");
+
+            int oldVersion = Integer.parseInt(oldTokens[0].replaceAll("[.]", ""));
+            int newVersion = Integer.parseInt(newTokens[0].replaceAll("[.]", ""));
+
+            // Check versions
+            if (oldVersion < newVersion) {
+                return true;
+            }
+
+            // Check release vs. beta & dev
+            if (newTokens.length == 0 && oldTokens.length == 2 && oldVersion == newVersion) {
+                return true;
+            }
+
+            // Check beta vs. dev
+            if (version.contains("dev") && title.contains("beta")) {
+                if (Integer.parseInt(oldTokens[1].substring(3)) < Integer.parseInt(newTokens[1].substring(4))) {
+                    return true;
+                }
+
+                result = UpdateResult.NO_UPDATE;
+                return false;
+            }
+
+            // Check beta vs. beta
+            if (version.contains("beta") && title.contains("beta")) {
+                if (Integer.parseInt(oldTokens[1].substring(4)) < Integer.parseInt(newTokens[1].substring(4))) {
+                    return true;
+                }
+
+                result = UpdateResult.NO_UPDATE;
+                return false;
+            }
+
+            if (oldTokens.length == 2 && !version.contains("beta") && !version.contains("dev")) {
+                plugin.getLogger().warning("Could not get information about this mcMMO version; perhaps you are running a custom one?");
+                result = UpdateResult.FAIL_NOVERSION;
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    private boolean read() {
+        try {
+            final URLConnection conn = this.url.openConnection();
+            conn.setConnectTimeout(5000);
+
+            if (this.apiKey != null) {
+                conn.addRequestProperty("X-API-Key", this.apiKey);
+            }
+            conn.addRequestProperty("User-Agent", "Updater (by Gravity)");
+
+            conn.setDoOutput(true);
+
+            final BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+            final String response = reader.readLine();
+
+            final JSONArray array = (JSONArray) JSONValue.parse(response);
+
+            if (array.size() == 0) {
+                this.plugin.getLogger().warning("The updater could not find any files for the project id " + this.id);
+                this.result = UpdateResult.FAIL_BADID;
+                return false;
+            }
+
+            this.versionName = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.TITLE_VALUE);
+            this.versionLink = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.LINK_VALUE);
+            this.versionType = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.TYPE_VALUE);
+            this.versionGameVersion = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.VERSION_VALUE);
+
+            return true;
+        }
+        catch (final IOException e) {
+            if (e.getMessage().contains("HTTP response code: 403")) {
+                this.plugin.getLogger().warning("dev.bukkit.org rejected the API key provided in plugins/Updater/config.yml");
+                this.plugin.getLogger().warning("Please double-check your configuration to ensure it is correct.");
+                this.result = UpdateResult.FAIL_APIKEY;
+            }
+            else {
+                this.plugin.getLogger().warning("The updater could not contact dev.bukkit.org for updating.");
+                this.plugin.getLogger().warning("If you have not recently modified your configuration and this is the first time you are seeing this message, the site may be experiencing temporary downtime.");
+                this.result = UpdateResult.FAIL_DBO;
+            }
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    private class UpdateRunnable implements Runnable {
+
+        @Override
+        public void run() {
+            if (Updater.this.url != null) {
+                // Obtain the results of the project's file feed
+                if (Updater.this.read()) {
+                    if (Updater.this.versionCheck(Updater.this.versionName)) {
+                        if ((Updater.this.versionLink != null) && (Updater.this.type != UpdateType.NO_DOWNLOAD)) {
+                            String name = Updater.this.file.getName();
+                            // If it's a zip file, it shouldn't be downloaded as the plugin's name
+                            if (Updater.this.versionLink.endsWith(".zip")) {
+                                final String[] split = Updater.this.versionLink.split("/");
+                                name = split[split.length - 1];
+                            }
+                            Updater.this.saveFile(new File(Updater.this.plugin.getDataFolder().getParent(), Updater.this.updateFolder), name, Updater.this.versionLink);
+                        }
+                        else {
+                            Updater.this.result = UpdateResult.UPDATE_AVAILABLE;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/net/h31ix/updater/mcmmo/Updater.java

@@ -1,531 +0,0 @@
-/*
- * Updater for Bukkit.
- *
- * This class provides the means to safely and easily update a plugin, or check to see if it is updated using dev.bukkit.org
- */
-
-package net.h31ix.updater.mcmmo;
-
-import javax.xml.stream.XMLEventReader;
-import javax.xml.stream.XMLInputFactory;
-import javax.xml.stream.XMLStreamException;
-import javax.xml.stream.events.XMLEvent;
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLConnection;
-import java.util.Enumeration;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-
-import org.bukkit.configuration.file.YamlConfiguration;
-import org.bukkit.plugin.Plugin;
-
-/**
- * Check dev.bukkit.org to find updates for a given plugin, and download the updates if needed.
- * <p/>
- * <b>VERY, VERY IMPORTANT</b>: Because there are no standards for adding auto-update toggles in your plugin's config, this system provides NO CHECK WITH YOUR CONFIG to make sure the user has allowed auto-updating.
- * <br>
- * It is a <b>BUKKIT POLICY</b> that you include a boolean value in your config that prevents the auto-updater from running <b>AT ALL</b>.
- * <br>
- * If you fail to include this option in your config, your plugin will be <b>REJECTED</b> when you attempt to submit it to dev.bukkit.org.
- * <p/>
- * An example of a good configuration option would be something similar to 'auto-update: true' - if this value is set to false you may NOT run the auto-updater.
- * <br>
- * If you are unsure about these rules, please read the plugin submission guidelines: http://goo.gl/8iU5l
- *
- * @author H31IX
- */
-
-public class Updater {
-    private Plugin plugin;
-    private UpdateType type;
-    private String versionTitle;
-    private String versionLink;
-    private long totalSize; // Holds the total size of the file
-    //private double downloadedSize; TODO: Holds the number of bytes downloaded
-    private int sizeLine; // Used for detecting file size
-    private int multiplier; // Used for determining when to broadcast download updates
-    private boolean announce; // Whether to announce file downloads
-    private URL url; // Connecting to RSS
-    private File file; // The plugin's file
-    private Thread thread; // Updater thread
-    private static final String DBOUrl = "http://dev.bukkit.org/server-mods/"; // Slugs will be appended to this to get to the project's RSS feed
-    private static final int BYTE_SIZE = 1024; // Used for downloading files
-    private String updateFolder = YamlConfiguration.loadConfiguration(new File("bukkit.yml")).getString("settings.update-folder"); // The folder that downloads will be placed in
-    private Updater.UpdateResult result = Updater.UpdateResult.SUCCESS; // Used for determining the outcome of the update process
-    // Strings for reading RSS
-    private static final String TITLE = "title";
-    private static final String LINK = "link";
-    private static final String ITEM = "item";
-
-    /**
-     * Gives the dev the result of the update process. Can be obtained by called getResult().
-     */
-    public enum UpdateResult {
-        /**
-         * The updater found an update, and has readied it to be loaded the next time the server restarts/reloads.
-         */
-        SUCCESS,
-        /**
-         * The updater did not find an update, and nothing was downloaded.
-         */
-        NO_UPDATE,
-        /**
-         * The updater found an update, but was unable to download it.
-         */
-        FAIL_DOWNLOAD,
-        /**
-         * For some reason, the updater was unable to contact dev.bukkit.org to download the file.
-         */
-        FAIL_DBO,
-        /**
-         * When running the version check, the file on DBO did not contain the a version in the format 'vVersion' such as 'v1.0'.
-         */
-        FAIL_NOVERSION,
-        /**
-         * The slug provided by the plugin running the updater was invalid and doesn't exist on DBO.
-         */
-        FAIL_BADSLUG,
-        /**
-         * The updater found an update, but because of the UpdateType being set to NO_DOWNLOAD, it wasn't downloaded.
-         */
-        UPDATE_AVAILABLE
-    }
-
-    /**
-     * Allows the dev to specify the type of update that will be run.
-     */
-    public enum UpdateType {
-        /**
-         * Run a version check, and then if the file is out of date, download the newest version.
-         */
-        DEFAULT,
-        /**
-         * Don't run a version check, just find the latest update and download it.
-         */
-        NO_VERSION_CHECK,
-        /**
-         * Get information about the version and the download size, but don't actually download anything.
-         */
-        NO_DOWNLOAD
-    }
-
-    /**
-     * Initialize the updater
-     *
-     * @param plugin   The plugin that is checking for an update.
-     * @param slug     The dev.bukkit.org slug of the project (http://dev.bukkit.org/server-mods/SLUG_IS_HERE)
-     * @param file     The file that the plugin is running from, get this by doing this.getFile() from within your main class.
-     * @param type     Specify the type of update this will be. See {@link UpdateType}
-     * @param announce True if the program should announce the progress of new updates in console
-     */
-    public Updater(Plugin plugin, String slug, File file, UpdateType type, boolean announce) {
-        this.plugin = plugin;
-        this.type = type;
-        this.announce = announce;
-        this.file = file;
-        try {
-            // Obtain the results of the project's file feed
-            url = new URL(DBOUrl + slug + "/files.rss");
-        }
-        catch (MalformedURLException ex) {
-            // Invalid slug
-            plugin.getLogger().warning("The author of this plugin (" + plugin.getDescription().getAuthors().get(0) + ") has misconfigured their Auto Update system");
-            plugin.getLogger().warning("The project slug given ('" + slug + "') is invalid. Please nag the author about this.");
-            result = Updater.UpdateResult.FAIL_BADSLUG; // Bad slug! Bad!
-        }
-        thread = new Thread(new UpdateRunnable());
-        thread.start();
-    }
-
-    /**
-     * Get the result of the update process.
-     */
-    public Updater.UpdateResult getResult() {
-        waitForThread();
-        return result;
-    }
-
-    /**
-     * Get the total bytes of the file (can only be used after running a version check or a normal run).
-     */
-    public long getFileSize() {
-        waitForThread();
-        return totalSize;
-    }
-
-    /**
-     * Get the version string latest file avaliable online.
-     */
-    public String getLatestVersionString() {
-        waitForThread();
-        return versionTitle;
-    }
-
-    /**
-     * As the result of Updater output depends on the thread's completion, it is necessary to wait for the thread to finish
-     * before alloowing anyone to check the result.
-     */
-    public void waitForThread() {
-        if (thread.isAlive()) {
-            try {
-                thread.join();
-            }
-            catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Save an update from dev.bukkit.org into the server's update folder.
-     */
-    private void saveFile(File folder, String file, String u) {
-        if (!folder.exists()) {
-            folder.mkdir();
-        }
-        BufferedInputStream in = null;
-        FileOutputStream fout = null;
-        try {
-            // Download the file
-            URL url = new URL(u);
-            int fileLength = url.openConnection().getContentLength();
-            in = new BufferedInputStream(url.openStream());
-            fout = new FileOutputStream(folder.getAbsolutePath() + "/" + file);
-
-            byte[] data = new byte[BYTE_SIZE];
-            int count;
-            if (announce) {
-                plugin.getLogger().info("About to download a new update: " + versionTitle);
-            }
-            long downloaded = 0;
-            while ((count = in.read(data, 0, BYTE_SIZE)) != -1) {
-                downloaded += count;
-                fout.write(data, 0, count);
-                int percent = (int) (downloaded * 100 / fileLength);
-                if (announce & (percent % 10 == 0)) {
-                    plugin.getLogger().info("Downloading update: " + percent + "% of " + fileLength + " bytes.");
-                }
-            }
-            //Just a quick check to make sure we didn't leave any files from last time...
-            for (File xFile : new File("plugins/" + updateFolder).listFiles()) {
-                if (xFile.getName().endsWith(".zip")) {
-                    xFile.delete();
-                }
-            }
-            // Check to see if it's a zip file, if it is, unzip it.
-            File dFile = new File(folder.getAbsolutePath() + "/" + file);
-            if (dFile.getName().endsWith(".zip")) {
-                // Unzip
-                unzip(dFile.getCanonicalPath());
-            }
-            if (announce) {
-                plugin.getLogger().info("Finished updating.");
-            }
-        }
-        catch (Exception ex) {
-            plugin.getLogger().warning("The auto-updater tried to download a new update, but was unsuccessful.");
-            result = Updater.UpdateResult.FAIL_DOWNLOAD;
-        }
-        finally {
-            try {
-                if (in != null) {
-                    in.close();
-                }
-                if (fout != null) {
-                    fout.close();
-                }
-            }
-            catch (Exception ex) {
-            }
-        }
-    }
-
-    /**
-     * Part of Zip-File-Extractor, modified by H31IX for use with Bukkit
-     */
-    private void unzip(String file) {
-        try {
-            File fSourceZip = new File(file);
-            String zipPath = file.substring(0, file.length() - 4);
-            ZipFile zipFile = new ZipFile(fSourceZip);
-            Enumeration<? extends ZipEntry> e = zipFile.entries();
-            while (e.hasMoreElements()) {
-                ZipEntry entry = e.nextElement();
-                File destinationFilePath = new File(zipPath, entry.getName());
-                destinationFilePath.getParentFile().mkdirs();
-                if (entry.isDirectory()) {
-                    continue;
-                }
-
-                BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));
-                int b;
-                byte buffer[] = new byte[BYTE_SIZE];
-                FileOutputStream fos = new FileOutputStream(destinationFilePath);
-                BufferedOutputStream bos = new BufferedOutputStream(fos, BYTE_SIZE);
-                while ((b = bis.read(buffer, 0, BYTE_SIZE)) != -1) {
-                    bos.write(buffer, 0, b);
-                }
-                bos.flush();
-                bos.close();
-                bis.close();
-                String name = destinationFilePath.getName();
-                if (name.endsWith(".jar") && pluginFile(name)) {
-                    destinationFilePath.renameTo(new File("plugins/" + updateFolder + "/" + name));
-                }
-
-                entry = null;
-                destinationFilePath = null;
-            }
-            e = null;
-            zipFile.close();
-            zipFile = null;
-            // Move any plugin data folders that were included to the right place, Bukkit won't do this for us.
-            for (File dFile : new File(zipPath).listFiles()) {
-                if (dFile.isDirectory()) {
-                    if (pluginFile(dFile.getName())) {
-                        File oFile = new File("plugins/" + dFile.getName()); // Get current dir
-                        File[] contents = oFile.listFiles(); // List of existing files in the current dir
-                        for (File cFile : dFile.listFiles()) // Loop through all the files in the new dir
-                        {
-                            boolean found = false;
-                            for (File xFile : contents) // Loop through contents to see if it exists
-                            {
-                                if (xFile.getName().equals(cFile.getName())) {
-                                    found = true;
-                                    break;
-                                }
-                            }
-                            if (!found) {
-                                // Move the new file into the current dir
-                                cFile.renameTo(new File(oFile.getCanonicalFile() + "/" + cFile.getName()));
-                            }
-                            else {
-                                // This file already exists, so we don't need it anymore.
-                                cFile.delete();
-                            }
-                        }
-                    }
-                }
-                dFile.delete();
-            }
-            new File(zipPath).delete();
-            fSourceZip.delete();
-        }
-        catch (IOException ex) {
-            ex.printStackTrace();
-            plugin.getLogger().warning("The auto-updater tried to unzip a new update file, but was unsuccessful.");
-            result = Updater.UpdateResult.FAIL_DOWNLOAD;
-        }
-        new File(file).delete();
-    }
-
-    /**
-     * Check if the name of a jar is one of the plugins currently installed, used for extracting the correct files out of a zip.
-     */
-    public boolean pluginFile(String name) {
-        for (File file : new File("plugins").listFiles()) {
-            if (file.getName().equals(name)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Obtain the direct download file url from the file's page.
-     */
-    private String getFile(String link) {
-        String download = null;
-        try {
-            // Open a connection to the page
-            URL url = new URL(link);
-            URLConnection urlConn = url.openConnection();
-            InputStreamReader inStream = new InputStreamReader(urlConn.getInputStream());
-            BufferedReader buff = new BufferedReader(inStream);
-
-            int counter = 0;
-            String line;
-            while ((line = buff.readLine()) != null) {
-                counter++;
-                // Search for the download link
-                if (line.contains("<li class=\"user-action user-action-download\">")) {
-                    // Get the raw link
-                    download = line.split("<a href=\"")[1].split("\">Download</a>")[0];
-                }
-                // Search for size
-                else if (line.contains("<dt>Size</dt>")) {
-                    sizeLine = counter + 1;
-                }
-                else if (counter == sizeLine) {
-                    String size = line.replaceAll("<dd>", "").replaceAll("</dd>", "");
-                    multiplier = size.contains("MiB") ? 1048576 : 1024;
-                    size = size.replace(" KiB", "").replace(" MiB", "");
-                    totalSize = (long) (Double.parseDouble(size) * multiplier);
-                }
-            }
-            urlConn = null;
-            inStream = null;
-            buff.close();
-            buff = null;
-        }
-        catch (Exception ex) {
-            ex.printStackTrace();
-            plugin.getLogger().warning("The auto-updater tried to contact dev.bukkit.org, but was unsuccessful.");
-            result = Updater.UpdateResult.FAIL_DBO;
-            return null;
-        }
-        return download;
-    }
-
-    /**
-     * Check to see if the program should continue by evaluation whether the plugin is already updated, or shouldn't be updated
-     */
-    private boolean versionCheck(String title) {
-        if (type != UpdateType.NO_VERSION_CHECK) {
-            String version = plugin.getDescription().getVersion();
-            title = title.substring(6);
-
-            String[] oldTokens = version.split("-");
-            String[] newTokens = title.split("-");
-
-            int oldVersion = Integer.parseInt(oldTokens[0].replaceAll("[.]", ""));
-            int newVersion = Integer.parseInt(newTokens[0].replaceAll("[.]", ""));
-
-            // Check versions
-            if (oldVersion < newVersion) {
-                return true;
-            }
-
-            // Check release vs. beta & dev
-            if (newTokens.length == 0 && oldTokens.length == 2 && oldVersion == newVersion) {
-                return true;
-            }
-
-            // Check beta vs. dev
-            if (version.contains("dev") && title.contains("beta")) {
-                if (Integer.parseInt(oldTokens[1].substring(3)) < Integer.parseInt(newTokens[1].substring(4))) {
-                    return true;
-                }
-
-                result = UpdateResult.NO_UPDATE;
-                return false;
-            }
-
-            // Check beta vs. beta
-            if (version.contains("beta") && title.contains("beta")) {
-                if (Integer.parseInt(oldTokens[1].substring(4)) < Integer.parseInt(newTokens[1].substring(4))) {
-                    return true;
-                }
-
-                result = UpdateResult.NO_UPDATE;
-                return false;
-            }
-
-            if (oldTokens.length == 2 && !version.contains("beta") && !version.contains("dev")) {
-                plugin.getLogger().warning("Could not get information about this mcMMO version; perhaps you are running a custom one?");
-                result = UpdateResult.FAIL_NOVERSION;
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    /**
-     * Part of RSS Reader by Vogella, modified by H31IX for use with Bukkit
-     */
-    private boolean readFeed() {
-        try {
-            // Set header values intial to the empty string
-            String title = "";
-            String link = "";
-            // First create a new XMLInputFactory
-            XMLInputFactory inputFactory = XMLInputFactory.newInstance();
-            // Setup a new eventReader
-            InputStream in = read();
-            if (in != null) {
-                XMLEventReader eventReader = inputFactory.createXMLEventReader(in);
-                // Read the XML document
-                while (eventReader.hasNext()) {
-                    XMLEvent event = eventReader.nextEvent();
-                    if (event.isStartElement()) {
-                        if (event.asStartElement().getName().getLocalPart().equals(TITLE)) {
-                            event = eventReader.nextEvent();
-                            title = event.asCharacters().getData();
-                            continue;
-                        }
-                        if (event.asStartElement().getName().getLocalPart().equals(LINK)) {
-                            event = eventReader.nextEvent();
-                            link = event.asCharacters().getData();
-                            continue;
-                        }
-                    }
-                    else if (event.isEndElement()) {
-                        if (event.asEndElement().getName().getLocalPart().equals(ITEM)) {
-                            // Store the title and link of the first entry we get - the first file on the list is all we need
-                            versionTitle = title;
-                            versionLink = link;
-                            // All done, we don't need to know about older files.
-                            break;
-                        }
-                    }
-                }
-                return true;
-            }
-
-            return false;
-        }
-        catch (XMLStreamException e) {
-            plugin.getLogger().warning("Could not reach dev.bukkit.org for update checking. Is it offline?");
-            return false;
-        }
-    }
-
-    /**
-     * Open the RSS feed
-     */
-    private InputStream read() {
-        try {
-            return url.openStream();
-        }
-        catch (IOException e) {
-            plugin.getLogger().warning("Could not reach BukkitDev file stream for update checking. Is dev.bukkit.org offline?");
-            return null;
-        }
-    }
-
-    private class UpdateRunnable implements Runnable {
-
-        public void run() {
-            if (url != null) {
-                // Obtain the results of the project's file feed
-                if (readFeed()) {
-                    if (versionCheck(versionTitle)) {
-                        String fileLink = getFile(versionLink);
-                        if (fileLink != null && type != UpdateType.NO_DOWNLOAD) {
-                            String name = file.getName();
-                            // If it's a zip file, it shouldn't be downloaded as the plugin's name
-                            if (fileLink.endsWith(".zip")) {
-                                String[] split = fileLink.split("/");
-                                name = split[split.length - 1];
-                            }
-                            saveFile(new File("plugins/" + updateFolder), name, fileLink);
-                        }
-                        else {
-                            result = UpdateResult.UPDATE_AVAILABLE;
-                        }
-                    }
-                }
-            }
-        }
-    }
-}