105 lines
3.3 KiB
Java
105 lines
3.3 KiB
Java
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/* Copyright 2012-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.prismlauncher.impl;
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import java.applet.Applet;
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import java.io.File;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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import java.lang.reflect.Field;
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import java.util.Collections;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.prismlauncher.applet.LegacyFrame;
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import org.prismlauncher.utils.Parameters;
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import org.prismlauncher.utils.Utils;
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@SuppressWarnings("removal")
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public final class LegacyLauncher extends AbstractLauncher {
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private static final Logger LOGGER = Logger.getLogger("LegacyLauncher");
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private final String user, session;
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private final String title;
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private final String appletClass;
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private final boolean noApplet;
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private final String cwd;
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public LegacyLauncher(Parameters params) {
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super(params);
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user = params.first("userName");
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session = params.first("sessionId");
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title = params.firstSafe("windowTitle", "Minecraft");
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appletClass = params.firstSafe("appletClass", "net.minecraft.client.MinecraftApplet");
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List<String> traits = params.allSafe("traits", Collections.<String>emptyList());
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noApplet = traits.contains("noapplet");
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cwd = System.getProperty("user.dir");
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}
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@Override
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public void launch() throws Throwable {
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Class<?> main = loadMain();
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Field gameDirField = Utils.getMinecraftGameDirField(main);
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if (gameDirField == null) {
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LOGGER.warning("Could not find Mineraft path field.");
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} else {
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gameDirField.setAccessible(true);
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gameDirField.set(null, new File(cwd));
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}
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if (!noApplet) {
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LOGGER.info("Launching with applet wrapper...");
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try {
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Class<?> appletClass = classLoader.loadClass(this.appletClass);
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MethodHandle constructor = MethodHandles.lookup().findConstructor(appletClass, MethodType.methodType(void.class));
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Applet applet = (Applet) constructor.invoke();
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LegacyFrame window = new LegacyFrame(title, applet);
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window.start(
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user,
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session,
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width,
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height,
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maximize,
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serverAddress,
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serverPort,
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mcParams.contains("--demo")
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);
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return;
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} catch (Throwable e) {
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LOGGER.log(Level.SEVERE, "Applet wrapper failed:", e);
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LOGGER.warning("Falling back to using main class.");
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}
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}
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invokeMain(main);
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}
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}
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