package org.multimc.applet;/* * Copyright 2012-2021 MultiMC Contributors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import net.minecraft.Launcher; import javax.imageio.ImageIO; import java.applet.Applet; import java.awt.*; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.File; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.StandardCopyOption; import java.util.Scanner; import java.util.logging.Level; import java.util.logging.Logger; public final class LegacyFrame extends Frame { private static final Logger LOGGER = Logger.getLogger("LegacyFrame"); private Launcher appletWrap; public LegacyFrame(String title) { super(title); try { setIconImage(ImageIO.read(new File("icon.png"))); } catch (IOException e) { LOGGER.log(Level.WARNING, "Unable to read Minecraft icon!", e); } this.addWindowListener(new ForceExitHandler()); } public void start ( Applet mcApplet, String user, String session, int winSizeW, int winSizeH, boolean maximize, String serverAddress, String serverPort ) { try { appletWrap = new Launcher(mcApplet, new URL("http://www.minecraft.net/game")); } catch (MalformedURLException ignored) {} // Implements support for launching in to multiplayer on classic servers using a mpticket // file generated by an external program and stored in the instance's root folder. Path mpticketFile = Paths.get(System.getProperty("user.dir") + "/../mpticket"); Path mpticketFileCorrupt = Paths.get(System.getProperty("user.dir") + "/../mpticket.corrupt"); if (Files.exists(mpticketFile)) { try (Scanner fileScanner = new Scanner( Files.newInputStream(mpticketFile), StandardCharsets.US_ASCII.name() )) { String[] mpticketParams = new String[3]; for (int i = 0; i < mpticketParams.length; i++) { if (fileScanner.hasNextLine()) { mpticketParams[i] = fileScanner.nextLine(); } else { Files.move( mpticketFile, mpticketFileCorrupt, StandardCopyOption.REPLACE_EXISTING ); throw new IllegalArgumentException("Mpticket file is corrupted!"); } } Files.delete(mpticketFile); // Assumes parameters are valid and in the correct order appletWrap.setParameter("server", mpticketParams[0]); appletWrap.setParameter("port", mpticketParams[1]); appletWrap.setParameter("mppass", mpticketParams[2]); } catch (IOException e) { LOGGER.log(Level.WARNING, "Unable to read mpticket file!", e); } } if (serverAddress != null) { appletWrap.setParameter("server", serverAddress); appletWrap.setParameter("port", serverPort); } appletWrap.setParameter("username", user); appletWrap.setParameter("sessionid", session); appletWrap.setParameter("stand-alone", "true"); // Show the quit button. appletWrap.setParameter("haspaid", "true"); // Some old versions need this for world saves to work. appletWrap.setParameter("demo", "false"); appletWrap.setParameter("fullscreen", "false"); mcApplet.setStub(appletWrap); add(appletWrap); appletWrap.setPreferredSize(new Dimension(winSizeW, winSizeH)); pack(); setLocationRelativeTo(null); setResizable(true); if (maximize) this.setExtendedState(MAXIMIZED_BOTH); validate(); appletWrap.init(); appletWrap.start(); setVisible(true); } private final class ForceExitHandler extends WindowAdapter { @Override public void windowClosing(WindowEvent e) { new Thread(() -> { try { Thread.sleep(30000L); } catch (InterruptedException localInterruptedException) { localInterruptedException.printStackTrace(); } LOGGER.info("Forcing exit!"); System.exit(0); }).start(); if (appletWrap != null) { appletWrap.stop(); appletWrap.destroy(); } // old minecraft versions can hang without this >_< System.exit(0); } } }