Create Updater.java
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HubThat/Updater.java
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563
HubThat/Updater.java
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package HubThat;
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import java.io.*;
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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.logging.Level;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import org.bukkit.configuration.file.YamlConfiguration;
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import org.bukkit.plugin.Plugin;
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import org.bukkit.scheduler.BukkitRunnable;
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import org.json.simple.JSONArray;
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import org.json.simple.JSONObject;
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import org.json.simple.JSONValue;
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public class Updater {
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/* Constants */
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// Remote file's title
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private static final String TITLE_VALUE = "name";
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// Remote file's download link
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private static final String LINK_VALUE = "downloadUrl";
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// Remote file's release type
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private static final String TYPE_VALUE = "releaseType";
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// Remote file's build version
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private static final String VERSION_VALUE = "gameVersion";
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// Path to GET
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private static final String QUERY = "/servermods/files?projectIds=";
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// Slugs will be appended to this to get to the project's RSS feed
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private static final String HOST = "https://api.curseforge.com";
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// User-agent when querying Curse
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private static final String USER_AGENT = "Updater (by Gravity)";
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// Used for locating version numbers in file names
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private static final String DELIMETER = "^v|[\\s_-]";
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// If the version number contains one of these, don't update.
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private static final String[] NO_UPDATE_TAG = { "-DEV", "-PRE", "-SNAPSHOT" };
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// Used for downloading files
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private static final int BYTE_SIZE = 1024;
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// Config key for api key
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private static final String API_KEY_CONFIG_KEY = "api-key";
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// Config key for disabling Updater
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private static final String DISABLE_CONFIG_KEY = "disable";
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// Default api key value in config
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private static final String API_KEY_DEFAULT = "API_KEY";
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// Default disable value in config
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private static final boolean DISABLE_DEFAULT = true;
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/* User-provided variables */
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// Plugin running Updater
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private final Plugin plugin;
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// Type of update check to run
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private final UpdateType type;
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// Whether to announce file downloads
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private final boolean announce;
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// The plugin file (jar)
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private final File file;
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// The folder that downloads will be placed in
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private final File updateFolder;
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// The provided callback (if any)
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private final UpdateCallback callback;
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// Project's Curse ID
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private int id = -1;
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// BukkitDev ServerMods API key
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private String apiKey = null;
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/* Collected from Curse API */
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private String versionName;
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private String versionLink;
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private String versionType;
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private String versionGameVersion;
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/* Update process variables */
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// Connection to RSS
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private URL url;
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// Updater thread
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private Thread thread;
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// Used for determining the outcome of the update process
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private Updater.UpdateResult result = Updater.UpdateResult.SUCCESS;
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/**
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* Gives the developer the result of the update process. Can be obtained by called {@link #getResult()}
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*/
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public enum UpdateResult {
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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 server administrator has disabled the updating system.
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*/
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DISABLED,
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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 a recognizable version.
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*/
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FAIL_NOVERSION,
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/**
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* The id provided by the plugin running the updater was invalid and doesn't exist on DBO.
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*/
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FAIL_BADID,
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/**
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* The server administrator has improperly configured their API key in the configuration.
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*/
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FAIL_APIKEY,
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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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* Allows the developer 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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* 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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* Represents the various release types of a file on BukkitDev.
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*/
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public enum ReleaseType {
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/**
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* An "alpha" file.
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*/
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ALPHA,
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/**
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* A "beta" file.
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*/
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BETA,
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/**
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* A "release" file.
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*/
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RELEASE
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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 The plugin that is checking for an update.
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* @param id The dev.bukkit.org id of the project.
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* @param file 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 Specify the type of update this will be. See {@link UpdateType}
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* @param announce 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, int id, File file, UpdateType type, boolean announce) {
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this(plugin, id, file, type, null, announce);
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}
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public Updater(Plugin plugin, int id, File file, UpdateType type, UpdateCallback callback) {
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this(plugin, id, file, type, callback, false);
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}
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public Updater(Plugin plugin, int id, File file, UpdateType type, UpdateCallback callback, boolean announce) {
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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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this.id = id;
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this.updateFolder = this.plugin.getServer().getUpdateFolderFile();
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this.callback = callback;
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YamlConfiguration config = new YamlConfiguration();
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if (!config.getBoolean(API_KEY_CONFIG_KEY, plugin.getConfig().getBoolean("updates.auto-update"))) {
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this.result = UpdateResult.DISABLED;
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return;
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}
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try {
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this.url = new URL(Updater.HOST + Updater.QUERY + this.id);
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} catch (final MalformedURLException e) {
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this.plugin.getLogger().log(Level.SEVERE, "The project ID provided for updating, " + this.id + " is invalid.", e);
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this.result = UpdateResult.FAIL_BADID;
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}
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if (this.result != UpdateResult.FAIL_BADID) {
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this.thread = new Thread(new UpdateRunnable());
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this.thread.start();
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} else {
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runUpdater();
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}
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}
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public Updater.UpdateResult getResult() {
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this.waitForThread();
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return this.result;
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}
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public ReleaseType getLatestType() {
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this.waitForThread();
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if (this.versionType != null) {
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for (ReleaseType type : ReleaseType.values()) {
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if (this.versionType.equalsIgnoreCase(type.name())) {
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return type;
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}
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}
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}
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return null;
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}
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public String getLatestGameVersion() {
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this.waitForThread();
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return this.versionGameVersion;
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}
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public String getLatestName() {
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this.waitForThread();
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return this.versionName;
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}
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public String getLatestFileLink() {
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this.waitForThread();
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return this.versionLink;
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}
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private void waitForThread() {
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if ((this.thread != null) && this.thread.isAlive()) {
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try {
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this.thread.join();
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} catch (final InterruptedException e) {
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this.plugin.getLogger().log(Level.SEVERE, null, e);
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}
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}
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}
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private void saveFile(String file) {
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final File folder = this.updateFolder;
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deleteOldFiles();
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if (!folder.exists()) {
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this.fileIOOrError(folder, folder.mkdir(), true);
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}
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downloadFile();
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// Check to see if it's a zip file, if it is, unzip it.
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final File dFile = new File(folder.getAbsolutePath(), file);
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if (dFile.getName().endsWith(".zip")) {
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// Unzip
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this.unzip(dFile.getAbsolutePath());
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}
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if (this.announce) {
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this.plugin.getLogger().info("Finished updating.");
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}
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}
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/**
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* Download a file and save it to the specified folder.
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*/
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private void downloadFile() {
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BufferedInputStream in = null;
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FileOutputStream fout = null;
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try {
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URL fileUrl = new URL(this.versionLink);
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final int fileLength = fileUrl.openConnection().getContentLength();
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in = new BufferedInputStream(fileUrl.openStream());
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fout = new FileOutputStream(new File(this.updateFolder, file.getName()));
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final byte[] data = new byte[Updater.BYTE_SIZE];
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int count;
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if (this.announce) {
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this.plugin.getLogger().info("About to download a new update: " + this.versionName);
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}
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long downloaded = 0;
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while ((count = in.read(data, 0, Updater.BYTE_SIZE)) != -1) {
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downloaded += count;
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fout.write(data, 0, count);
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final int percent = (int) ((downloaded * 100) / fileLength);
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if (this.announce && ((percent % 10) == 0)) {
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this.plugin.getLogger().info("Downloading update: " + percent + "% of " + fileLength + " bytes.");
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}
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}
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} catch (Exception ex) {
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this.plugin.getLogger().log(Level.WARNING, "The auto-updater tried to download a new update, but was unsuccessful.", ex);
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this.result = Updater.UpdateResult.FAIL_DOWNLOAD;
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} finally {
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try {
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if (in != null) {
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in.close();
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}
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} catch (final IOException ex) {
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this.plugin.getLogger().log(Level.SEVERE, null, ex);
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}
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try {
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if (fout != null) {
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fout.close();
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}
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} catch (final IOException ex) {
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this.plugin.getLogger().log(Level.SEVERE, null, ex);
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}
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}
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}
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/**
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* Remove possibly leftover files from the update folder.
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*/
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private void deleteOldFiles() {
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//Just a quick check to make sure we didn't leave any files from last time...
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File[] list = listFilesOrError(this.updateFolder);
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for (final File xFile : list) {
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if (xFile.getName().endsWith(".zip")) {
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this.fileIOOrError(xFile, xFile.mkdir(), true);
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}
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}
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}
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private void unzip(String file) {
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final File fSourceZip = new File(file);
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try {
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final 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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ZipEntry entry = e.nextElement();
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File destinationFilePath = new File(zipPath, entry.getName());
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this.fileIOOrError(destinationFilePath.getParentFile(), destinationFilePath.getParentFile().mkdirs(), true);
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if (!entry.isDirectory()) {
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final BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));
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int b;
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final byte[] buffer = new byte[Updater.BYTE_SIZE];
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final FileOutputStream fos = new FileOutputStream(destinationFilePath);
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final BufferedOutputStream bos = new BufferedOutputStream(fos, Updater.BYTE_SIZE);
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while ((b = bis.read(buffer, 0, Updater.BYTE_SIZE)) != -1) {
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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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final String name = destinationFilePath.getName();
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if (name.endsWith(".jar") && this.pluginExists(name)) {
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File output = new File(this.updateFolder, name);
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this.fileIOOrError(output, destinationFilePath.renameTo(output), true);
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}
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}
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}
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zipFile.close();
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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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moveNewZipFiles(zipPath);
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} catch (final IOException e) {
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this.plugin.getLogger().log(Level.SEVERE, "The auto-updater tried to unzip a new update file, but was unsuccessful.", e);
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this.result = Updater.UpdateResult.FAIL_DOWNLOAD;
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} finally {
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this.fileIOOrError(fSourceZip, fSourceZip.delete(), false);
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}
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}
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/**
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* Find any new files extracted from an update into the plugin's data directory.
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* @param zipPath path of extracted files.
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*/
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private void moveNewZipFiles(String zipPath) {
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File[] list = listFilesOrError(new File(zipPath));
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for (final File dFile : list) {
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if (dFile.isDirectory() && this.pluginExists(dFile.getName())) {
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// Current dir
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final File oFile = new File(this.plugin.getDataFolder().getParent(), dFile.getName());
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// List of existing files in the new dir
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final File[] dList = listFilesOrError(dFile);
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// List of existing files in the current dir
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final File[] oList = listFilesOrError(oFile);
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for (File cFile : dList) {
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// Loop through all the files in the new dir
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boolean found = false;
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for (final File xFile : oList) {
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// Loop through all the contents in the current dir to see if it exists
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||||||
|
if (xFile.getName().equals(cFile.getName())) {
|
||||||
|
found = true;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (!found) {
|
||||||
|
// Move the new file into the current dir
|
||||||
|
File output = new File(oFile, cFile.getName());
|
||||||
|
this.fileIOOrError(output, cFile.renameTo(output), true);
|
||||||
|
} else {
|
||||||
|
// This file already exists, so we don't need it anymore.
|
||||||
|
this.fileIOOrError(cFile, cFile.delete(), false);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
this.fileIOOrError(dFile, dFile.delete(), false);
|
||||||
|
}
|
||||||
|
File zip = new File(zipPath);
|
||||||
|
this.fileIOOrError(zip, zip.delete(), false);
|
||||||
|
}
|
||||||
|
private boolean pluginExists(String name) {
|
||||||
|
File[] plugins = listFilesOrError(new File("plugins"));
|
||||||
|
for (final File file : plugins) {
|
||||||
|
if (file.getName().equals(name)) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check to see if the program should continue by evaluating whether the plugin is already updated, or shouldn't be updated.
|
||||||
|
*
|
||||||
|
* @return true if the version was located and is not the same as the remote's newest.
|
||||||
|
*/
|
||||||
|
private boolean versionCheck() {
|
||||||
|
final String title = this.versionName;
|
||||||
|
if (this.type != UpdateType.NO_VERSION_CHECK) {
|
||||||
|
final String localVersion = this.plugin.getDescription().getVersion();
|
||||||
|
if (title.split(DELIMETER).length == 2) {
|
||||||
|
// Get the newest file's version number
|
||||||
|
final String remoteVersion = title.split(DELIMETER)[1].split(" ")[0];
|
||||||
|
|
||||||
|
if (this.hasTag(localVersion) || !this.shouldUpdate(localVersion, remoteVersion)) {
|
||||||
|
// We already have the latest version, or this build is tagged for no-update
|
||||||
|
this.result = Updater.UpdateResult.NO_UPDATE;
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// The file's name did not contain the string 'vVersion'
|
||||||
|
final String authorInfo = this.plugin.getDescription().getAuthors().isEmpty() ? "" : " (" + this.plugin.getDescription().getAuthors().get(0) + ")";
|
||||||
|
this.plugin.getLogger().warning("There's an Update Error.");
|
||||||
|
this.result = Updater.UpdateResult.FAIL_NOVERSION;
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
public boolean shouldUpdate(String localVersion, String remoteVersion) {
|
||||||
|
return !localVersion.equalsIgnoreCase(remoteVersion);
|
||||||
|
}
|
||||||
|
private boolean hasTag(String version) {
|
||||||
|
for (final String string : Updater.NO_UPDATE_TAG) {
|
||||||
|
if (version.contains(string)) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
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.USER_AGENT);
|
||||||
|
|
||||||
|
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.isEmpty()) {
|
||||||
|
this.plugin.getLogger().warning("The updater could not find any files for the project id " + this.id);
|
||||||
|
this.result = UpdateResult.FAIL_BADID;
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
JSONObject latestUpdate = (JSONObject) array.get(array.size() - 1);
|
||||||
|
this.versionName = (String) latestUpdate.get(Updater.TITLE_VALUE);
|
||||||
|
this.versionLink = (String) latestUpdate.get(Updater.LINK_VALUE);
|
||||||
|
this.versionType = (String) latestUpdate.get(Updater.TYPE_VALUE);
|
||||||
|
this.versionGameVersion = (String) latestUpdate.get(Updater.VERSION_VALUE);
|
||||||
|
|
||||||
|
return true;
|
||||||
|
} catch (final IOException e) {
|
||||||
|
if (e.getMessage().contains("HTTP response code: 403")) {
|
||||||
|
this.plugin.getLogger().severe("dev.bukkit.org rejected the API key provided in plugins/Updater/config.yml");
|
||||||
|
this.plugin.getLogger().severe("Please double-check your configuration to ensure it is correct.");
|
||||||
|
this.result = UpdateResult.FAIL_APIKEY;
|
||||||
|
} else {
|
||||||
|
this.plugin.getLogger().severe("The updater could not contact dev.bukkit.org for updating.");
|
||||||
|
this.plugin.getLogger().severe("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;
|
||||||
|
}
|
||||||
|
this.plugin.getLogger().log(Level.SEVERE, null, e);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private void fileIOOrError(File file, boolean result, boolean create) {
|
||||||
|
if (!result) {
|
||||||
|
this.plugin.getLogger().severe("The updater could not " + (create ? "create" : "delete") + " file at: " + file.getAbsolutePath());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private File[] listFilesOrError(File folder) {
|
||||||
|
File[] contents = folder.listFiles();
|
||||||
|
if (contents == null) {
|
||||||
|
this.plugin.getLogger().severe("The updater could not access files at: " + this.updateFolder.getAbsolutePath());
|
||||||
|
return new File[0];
|
||||||
|
} else {
|
||||||
|
return contents;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public interface UpdateCallback {
|
||||||
|
void onFinish(Updater updater);
|
||||||
|
}
|
||||||
|
|
||||||
|
private class UpdateRunnable implements Runnable {
|
||||||
|
public void run() {
|
||||||
|
runUpdater();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private void runUpdater() {
|
||||||
|
if (this.url != null && (this.read() && this.versionCheck())) {
|
||||||
|
// Obtain the results of the project's file feed
|
||||||
|
if ((this.versionLink != null) && (this.type != UpdateType.NO_DOWNLOAD)) {
|
||||||
|
String name = this.file.getName();
|
||||||
|
// If it's a zip file, it shouldn't be downloaded as the plugin's name
|
||||||
|
if (this.versionLink.endsWith(".zip")) {
|
||||||
|
name = this.versionLink.substring(this.versionLink.lastIndexOf("/") + 1);
|
||||||
|
}
|
||||||
|
this.saveFile(name);
|
||||||
|
} else {
|
||||||
|
this.result = UpdateResult.UPDATE_AVAILABLE;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (this.callback != null) {
|
||||||
|
new BukkitRunnable() {
|
||||||
|
public void run() {
|
||||||
|
runCallback();
|
||||||
|
}
|
||||||
|
}.runTask(this.plugin);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private void runCallback() {
|
||||||
|
this.callback.onFinish(this);
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user