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@@ -0,0 +1,613 @@
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+/*
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+ * Updater for Bukkit.
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+ *
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+ * This class provides the means to safely and easily update a plugin, or check to see if it is updated using dev.bukkit.org
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+ */
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+
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+package net.h31ix.updater;
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+
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+import java.io.*;
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+import java.lang.IllegalThreadStateException;
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+import java.lang.Runnable;
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+import java.lang.Thread;
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+import java.net.MalformedURLException;
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+import java.net.URL;
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+import java.net.URLConnection;
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+import java.util.Enumeration;
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+import java.util.zip.ZipEntry;
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+import java.util.zip.ZipFile;
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+import javax.xml.stream.XMLEventReader;
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+import javax.xml.stream.XMLInputFactory;
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+import javax.xml.stream.XMLStreamException;
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+import javax.xml.stream.events.XMLEvent;
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+import org.bukkit.configuration.file.YamlConfiguration;
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+import org.bukkit.plugin.Plugin;
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+
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+/**
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+ * Check dev.bukkit.org to find updates for a given plugin, and download the updates if needed.
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+ * <p>
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+ * <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.
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+ * <br>
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+ * 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>.
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+ * <br>
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+ * 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.
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+ * <p>
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+ * 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.
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+ * <br>
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+ * If you are unsure about these rules, please read the plugin submission guidelines: http://goo.gl/8iU5l
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+ *
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+ * @author H31IX
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+ */
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+
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+public class Updater
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+{
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+ private Plugin plugin;
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+ private UpdateType type;
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+ private String versionTitle;
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+ private String versionLink;
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+ private long totalSize; // Holds the total size of the file
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+ //private double downloadedSize; TODO: Holds the number of bytes downloaded
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+ private int sizeLine; // Used for detecting file size
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+ private int multiplier; // Used for determining when to broadcast download updates
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+ private boolean announce; // Whether to announce file downloads
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+ private URL url; // Connecting to RSS
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+ private File file; // The plugin's file
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+ private Thread thread; // Updater thread
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+ 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
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+ private String [] noUpdateTag = {}; // If the version number contains one of these, don't update.
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+ private static final int BYTE_SIZE = 1024; // Used for downloading files
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+ private String updateFolder = YamlConfiguration.loadConfiguration(new File("bukkit.yml")).getString("settings.update-folder"); // The folder that downloads will be placed in
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+ private Updater.UpdateResult result = Updater.UpdateResult.SUCCESS; // Used for determining the outcome of the update process
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+ // Strings for reading RSS
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+ private static final String TITLE = "title";
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+ private static final String LINK = "link";
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+ private static final String ITEM = "item";
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+
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+ /**
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+ * Gives the dev the result of the update process. Can be obtained by called getResult().
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+ */
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+ public enum UpdateResult
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+ {
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+ /**
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+ * The updater found an update, and has readied it to be loaded the next time the server restarts/reloads.
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+ */
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+ SUCCESS,
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+ /**
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+ * The updater did not find an update, and nothing was downloaded.
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+ */
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+ NO_UPDATE,
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+ /**
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+ * The updater found an update, but was unable to download it.
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+ */
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+ FAIL_DOWNLOAD,
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+ /**
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+ * For some reason, the updater was unable to contact dev.bukkit.org to download the file.
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+ */
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+ FAIL_DBO,
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+ /**
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+ * When running the version check, the file on DBO did not contain the a version in the format 'vVersion' such as 'v1.0'.
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+ */
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+ FAIL_NOVERSION,
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+ /**
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+ * The slug provided by the plugin running the updater was invalid and doesn't exist on DBO.
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+ */
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+ FAIL_BADSLUG,
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+ /**
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+ * The updater found an update, but because of the UpdateType being set to NO_DOWNLOAD, it wasn't downloaded.
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+ */
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+ UPDATE_AVAILABLE
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+ }
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+
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+ /**
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+ * Allows the dev to specify the type of update that will be run.
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+ */
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+ public enum UpdateType
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+ {
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+ /**
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+ * Run a version check, and then if the file is out of date, download the newest version.
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+ */
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+ DEFAULT,
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+ /**
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+ * Don't run a version check, just find the latest update and download it.
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+ */
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+ NO_VERSION_CHECK,
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+ /**
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+ * Get information about the version and the download size, but don't actually download anything.
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+ */
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+ NO_DOWNLOAD
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+ }
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+
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+ /**
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+ * Initialize the updater
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+ *
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+ * @param plugin
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+ * The plugin that is checking for an update.
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+ * @param slug
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+ * The dev.bukkit.org slug of the project (http://dev.bukkit.org/server-mods/SLUG_IS_HERE)
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+ * @param file
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+ * The file that the plugin is running from, get this by doing this.getFile() from within your main class.
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+ * @param type
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+ * Specify the type of update this will be. See {@link UpdateType}
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+ * @param announce
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+ * True if the program should announce the progress of new updates in console
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+ */
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+ public Updater(Plugin plugin, String slug, File file, UpdateType type, boolean announce)
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+ {
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+ this.plugin = plugin;
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+ this.type = type;
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+ this.announce = announce;
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+ this.file = file;
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+ try
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+ {
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+ // Obtain the results of the project's file feed
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+ url = new URL(DBOUrl + slug + "/files.rss");
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+ }
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+ catch (MalformedURLException ex)
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+ {
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+ // Invalid slug
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+ plugin.getLogger().warning("The author of this plugin (" + plugin.getDescription().getAuthors().get(0) + ") has misconfigured their Auto Update system");
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+ plugin.getLogger().warning("The project slug given ('" + slug + "') is invalid. Please nag the author about this.");
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+ result = Updater.UpdateResult.FAIL_BADSLUG; // Bad slug! Bad!
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+ }
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+ thread = new Thread(new UpdateRunnable());
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+ thread.start();
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+ }
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+
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+ /**
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+ * Get the result of the update process.
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+ */
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+ public Updater.UpdateResult getResult()
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+ {
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+ waitForThread();
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+ return result;
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+ }
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+
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+ /**
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+ * Get the total bytes of the file (can only be used after running a version check or a normal run).
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+ */
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+ public long getFileSize()
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+ {
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+ waitForThread();
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+ return totalSize;
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+ }
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+
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+ /**
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+ * Get the version string latest file avaliable online.
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+ */
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+ public String getLatestVersionString()
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+ {
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+ waitForThread();
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+ return versionTitle;
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+ }
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+
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+ /**
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+ * As the result of Updater output depends on the thread's completion, it is necessary to wait for the thread to finish
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+ * before alloowing anyone to check the result.
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+ */
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+ public void waitForThread() {
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+ if(thread.isAlive()) {
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+ try {
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+ thread.join();
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+ } catch (InterruptedException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ }
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+
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+ /**
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+ * Save an update from dev.bukkit.org into the server's update folder.
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+ */
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+ private void saveFile(File folder, String file, String u)
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+ {
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+ if(!folder.exists())
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+ {
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+ folder.mkdir();
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+ }
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+ BufferedInputStream in = null;
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+ FileOutputStream fout = null;
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+ try
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+ {
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+ // Download the file
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+ URL url = new URL(u);
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+ int fileLength = url.openConnection().getContentLength();
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+ in = new BufferedInputStream(url.openStream());
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+ fout = new FileOutputStream(folder.getAbsolutePath() + "/" + file);
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+
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+ byte[] data = new byte[BYTE_SIZE];
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+ int count;
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+ if(announce) plugin.getLogger().info("About to download a new update: " + versionTitle);
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+ long downloaded = 0;
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+ while ((count = in.read(data, 0, BYTE_SIZE)) != -1)
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+ {
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+ downloaded += count;
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+ fout.write(data, 0, count);
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+ int percent = (int) (downloaded * 100 / fileLength);
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+ if(announce & (percent % 10 == 0))
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+ {
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+ plugin.getLogger().info("Downloading update: " + percent + "% of " + fileLength + " bytes.");
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+ }
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+ }
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+ //Just a quick check to make sure we didn't leave any files from last time...
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+ for(File xFile : new File("plugins/" + updateFolder).listFiles())
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+ {
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+ if(xFile.getName().endsWith(".zip"))
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+ {
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+ xFile.delete();
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+ }
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+ }
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+ // Check to see if it's a zip file, if it is, unzip it.
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+ File dFile = new File(folder.getAbsolutePath() + "/" + file);
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+ if(dFile.getName().endsWith(".zip"))
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+ {
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+ // Unzip
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+ unzip(dFile.getCanonicalPath());
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+ }
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+ if(announce) plugin.getLogger().info("Finished updating.");
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+ }
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+ catch (Exception ex)
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+ {
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+ plugin.getLogger().warning("The auto-updater tried to download a new update, but was unsuccessful.");
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+ result = Updater.UpdateResult.FAIL_DOWNLOAD;
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+ }
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+ finally
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+ {
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+ try
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+ {
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+ if (in != null)
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+ {
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+ in.close();
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+ }
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+ if (fout != null)
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+ {
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+ fout.close();
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+ }
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+ }
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+ catch (Exception ex)
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+ {
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+ }
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+ }
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+ }
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+
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+ /**
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+ * Part of Zip-File-Extractor, modified by H31IX for use with Bukkit
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+ */
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+ private void unzip(String file)
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+ {
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+ try
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+ {
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+ File fSourceZip = new File(file);
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+ String zipPath = file.substring(0, file.length()-4);
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+ ZipFile zipFile = new ZipFile(fSourceZip);
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+ Enumeration<? extends ZipEntry> e = zipFile.entries();
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+ while(e.hasMoreElements())
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+ {
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+ ZipEntry entry = (ZipEntry)e.nextElement();
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+ File destinationFilePath = new File(zipPath,entry.getName());
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+ destinationFilePath.getParentFile().mkdirs();
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+ if(entry.isDirectory())
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+ {
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+ continue;
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+ }
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+ else
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+ {
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+ BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));
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+ int b;
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+ byte buffer[] = new byte[BYTE_SIZE];
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+ FileOutputStream fos = new FileOutputStream(destinationFilePath);
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+ BufferedOutputStream bos = new BufferedOutputStream(fos, BYTE_SIZE);
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+ while((b = bis.read(buffer, 0, BYTE_SIZE)) != -1)
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+ {
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+ bos.write(buffer, 0, b);
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+ }
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+ bos.flush();
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+ bos.close();
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+ bis.close();
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+ String name = destinationFilePath.getName();
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+ if(name.endsWith(".jar") && pluginFile(name))
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+ {
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+ destinationFilePath.renameTo(new File("plugins/" + updateFolder + "/" + name));
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+ }
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+ }
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+ entry = null;
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+ destinationFilePath = null;
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+ }
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+ e = null;
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+ zipFile.close();
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+ zipFile = null;
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+ // Move any plugin data folders that were included to the right place, Bukkit won't do this for us.
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+ for(File dFile : new File(zipPath).listFiles())
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+ {
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+ if(dFile.isDirectory())
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+ {
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+ if(pluginFile(dFile.getName()))
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+ {
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+ File oFile = new File("plugins/" + dFile.getName()); // Get current dir
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+ File [] contents = oFile.listFiles(); // List of existing files in the current dir
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+ for(File cFile : dFile.listFiles()) // Loop through all the files in the new dir
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+ {
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+ boolean found = false;
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+ for(File xFile : contents) // Loop through contents to see if it exists
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+ {
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+ if(xFile.getName().equals(cFile.getName()))
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+ {
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+ found = true;
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+ break;
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+ }
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+ }
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+ if(!found)
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+ {
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+ // Move the new file into the current dir
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+ cFile.renameTo(new File(oFile.getCanonicalFile() + "/" + cFile.getName()));
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+ }
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+ else
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+ {
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+ // This file already exists, so we don't need it anymore.
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+ cFile.delete();
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+ }
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+ }
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+ }
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+ }
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+ dFile.delete();
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+ }
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+ new File(zipPath).delete();
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+ fSourceZip.delete();
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+ }
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+ catch(IOException ex)
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+ {
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+ ex.printStackTrace();
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+ plugin.getLogger().warning("The auto-updater tried to unzip a new update file, but was unsuccessful.");
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+ result = Updater.UpdateResult.FAIL_DOWNLOAD;
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+ }
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+ new File(file).delete();
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+ }
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+
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+ /**
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+ * Check if the name of a jar is one of the plugins currently installed, used for extracting the correct files out of a zip.
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+ */
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+ public boolean pluginFile(String name)
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+ {
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+ for(File file : new File("plugins").listFiles())
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+ {
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+ if(file.getName().equals(name))
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+ {
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+ return true;
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+ }
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+ }
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+ return false;
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+ }
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+
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+ /**
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+ * Obtain the direct download file url from the file's page.
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+ */
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+ private String getFile(String link)
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+ {
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+ String download = null;
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+ try
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+ {
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+ // Open a connection to the page
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+ URL url = new URL(link);
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+ URLConnection urlConn = url.openConnection();
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+ InputStreamReader inStream = new InputStreamReader(urlConn.getInputStream());
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+ BufferedReader buff = new BufferedReader(inStream);
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+
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+ int counter = 0;
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+ String line;
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+ while((line = buff.readLine()) != null)
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+ {
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+ counter++;
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+ // Search for the download link
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+ if(line.contains("<li class=\"user-action user-action-download\">"))
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+ {
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+ // Get the raw link
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+ download = line.split("<a href=\"")[1].split("\">Download</a>")[0];
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+ }
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+ // Search for size
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+ else if (line.contains("<dt>Size</dt>"))
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+ {
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+ sizeLine = counter+1;
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+ }
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+ else if(counter == sizeLine)
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+ {
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+ String size = line.replaceAll("<dd>", "").replaceAll("</dd>", "");
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+ multiplier = size.contains("MiB") ? 1048576 : 1024;
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+ size = size.replace(" KiB", "").replace(" MiB", "");
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+ totalSize = (long)(Double.parseDouble(size)*multiplier);
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+ }
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+ }
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+ urlConn = null;
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+ inStream = null;
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+ buff.close();
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+ buff = null;
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+ }
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+ catch (Exception ex)
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+ {
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+ 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();
|
|
|
+
|
|
|
+ String[] oldTokens = version.replaceAll("(?i)(-)(.+?)(-)", "-").split("[.]|-b");
|
|
|
+ String[] newTokens = title.replaceAll("(?i)(-)(.+?)(-)", "-").split("[.]|-b");
|
|
|
+
|
|
|
+ for (int i = 0; i < 4; i++) {
|
|
|
+ Integer newVer = Integer.parseInt(newTokens[i]);
|
|
|
+ Integer oldVer;
|
|
|
+
|
|
|
+ try {
|
|
|
+ oldVer = Integer.parseInt(oldTokens[i]);
|
|
|
+ }
|
|
|
+ catch (NumberFormatException e) {
|
|
|
+ plugin.getLogger().warning("Could not get information about this mcMMO version; perhaps you are running a custom one?");
|
|
|
+ result = UpdateResult.FAIL_NOVERSION;
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (oldVer < newVer) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ result = Updater.UpdateResult.NO_UPDATE;
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Used to calculate the version string as an Integer
|
|
|
+ */
|
|
|
+ private Integer calVer(String s) throws NumberFormatException
|
|
|
+ {
|
|
|
+ if(s.contains("."))
|
|
|
+ {
|
|
|
+ StringBuilder sb = new StringBuilder();
|
|
|
+ for (int i = 0; i <s.length(); i++)
|
|
|
+ {
|
|
|
+ Character c = s.charAt(i);
|
|
|
+ if (Character.isLetterOrDigit(c))
|
|
|
+ {
|
|
|
+ sb.append(c);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return Integer.parseInt(sb.toString());
|
|
|
+ }
|
|
|
+ return Integer.parseInt(s);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Evaluate whether the version number is marked showing that it should not be updated by this program
|
|
|
+ */
|
|
|
+ private boolean hasTag(String version)
|
|
|
+ {
|
|
|
+ for(String string : noUpdateTag)
|
|
|
+ {
|
|
|
+ if(version.contains(string))
|
|
|
+ {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ 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;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
GJ