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package gq.malwarefight.nosession.mixin;
import com.google.common.annotations.Beta;
import com.google.common.collect.ForwardingMultimap;
import com.google.gson.Gson;
import com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService;
import net.minecraft.launchwrapper.ITweaker;
import net.minecraft.launchwrapper.Launch;
import net.minecraft.launchwrapper.LaunchClassLoader;
import net.minecraft.launchwrapper.LogWrapper;
import org.apache.commons.io.ByteOrderMark;
import org.apache.commons.lang3.CharEncoding;
import org.apache.commons.lang3.Validate;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.objectweb.asm.Opcodes;
import org.spongepowered.asm.launch.MixinBootstrap;
import org.spongepowered.asm.mixin.MixinEnvironment;
import org.spongepowered.asm.mixin.Mixins;
import java.io.File;
import java.io.IOException;
import java.net.Socket;
import java.net.URISyntaxException;
import java.nio.charset.StandardCharsets;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
@SuppressWarnings({"unused", "unchecked"})
public class InitialTweaker implements ITweaker {
// I'm creating my own allTweakers list
// with blackjack and hookers!
public final ArrayList<ITweaker> allTweakers = new ArrayList<>();
public InitialTweaker() {}
public String getLibraryPath(Class<?> c) throws URISyntaxException {
return new File(c.getProtectionDomain().getCodeSource().getLocation().toURI()).getAbsolutePath();
}
public String getClasspath() throws URISyntaxException {
return String.join(
System.getProperty("path.separator"),
getLibraryPath(InitialTweaker.class),
getLibraryPath(YggdrasilAuthenticationService.class),
getLibraryPath(Gson.class),
getLibraryPath(LogManager.class),
getLibraryPath(Validate.class),
getLibraryPath(ForwardingMultimap.class),
getLibraryPath(Beta.class),
getLibraryPath(CharEncoding.class),
getLibraryPath(ByteOrderMark.class),
getLibraryPath(Logger.class),
getLibraryPath(Opcodes.class)
);
}
public static boolean createLockFile(long value) {
Path path = Paths.get(System.getProperty("java.io.tmpdir"), "NoSessionLock" + value);
try {
Files.createFile(path);
} catch (FileAlreadyExistsException e) {
System.out.println("You won the lottery! Two NoSession instances used the same ID. The chance that a new NoSession instance uses the same ID as an old one is (NoSession instances) / 2^64");
return false;
} catch (IOException e) {
LogManager.getLogger().warn("Failed to create lockfile " + e.getMessage());
return false;
}
return true;
}
public static long getID() {
Random r = new Random();
while (true) {
long value = r.nextLong();
if (createLockFile(value)) {
Runtime.getRuntime().addShutdownHook(
new Thread(() -> {
try {
Files.delete(Paths.get(System.getProperty("java.io.tmpdir"), "NoSessionLock" + value));
} catch (Exception ignored) {}
})
);
return value;
}
}
}
public void setToken(String token) throws IOException, URISyntaxException {
long value = getID();
Utils.ID = value;
File javaExecutable = Paths.get(System.getProperty("java.home"), "bin", "java").toFile();
ProcessBuilder processBuilder = new ProcessBuilder(
javaExecutable.getAbsolutePath(), "-cp", getClasspath(), "gq.malwarefight.tokenapp.Main", Long.toString(value)
);
processBuilder.redirectOutput(ProcessBuilder.Redirect.INHERIT).redirectError(ProcessBuilder.Redirect.INHERIT);
Process c = processBuilder.start();
c.getOutputStream().write((token + "\n").getBytes(StandardCharsets.UTF_8));
c.getOutputStream().flush();
Runtime.getRuntime().addShutdownHook(
new Thread(() -> {
try {
Socket socket = Utils.getProperSocket();
socket.getOutputStream().write("fullquit\n".getBytes(StandardCharsets.UTF_8));
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
})
);
}
/**
* This handles the launch arguments passed towards minecraft
* @param args The launch arguments
* @param gameDir The game directory (ie: .minecraft)
* @param assetsDir The assets directory
* @param profile The game profile
*/
@Override
@SuppressWarnings("unchecked")
public final void acceptOptions(List<String> args, File gameDir, File assetsDir, String profile) {
ArrayList<String> argsCopy = new ArrayList<>(args);
for (int i = 0; i < argsCopy.size(); i++) {
if (argsCopy.get(i).equals("--accessToken")) {
try {
setToken(args.get(i + 1));
} catch (IOException | URISyntaxException e) {
throw new RuntimeException(e);
}
argsCopy.set(i + 1, "<noSessionAccessToken>");
}
}
boolean any = false;
// in order to prevent other mods from seeing the true list of args with the token
// we will just call all the other tweakers from here
ArrayList<ITweaker> tweakers = (ArrayList<ITweaker>) Launch.blackboard.get("Tweaks");
for (final ITweaker tweaker : tweakers) {
if (tweaker == this)
continue;
LogWrapper.log(Level.INFO, "Calling tweak class %s", tweaker.getClass().getName());
tweaker.acceptOptions(argsCopy, gameDir, assetsDir, profile);
tweaker.injectIntoClassLoader(Launch.classLoader);
allTweakers.add(tweaker);
tweakers.set(tweakers.indexOf(tweaker), new BlankTweaker());
any = true;
}
if (any) {
((ArrayList<String>) Launch.blackboard.get("TweakClasses")).add(0,
Utils.getUniqueClassName()
);
}
}
/**
* Inject into the MC class loader
* @param classLoader The class loader
*/
@Override
public final void injectIntoClassLoader(LaunchClassLoader classLoader) {
MixinBootstrap.init();
MixinEnvironment environment = MixinEnvironment.getDefaultEnvironment();
Mixins.addConfiguration("mixins.nosession.json");
// Check if the obfuscation context is null
if (environment.getObfuscationContext() == null) {
environment.setObfuscationContext("notch");
}
// This is a client side, client :)
environment.setSide(MixinEnvironment.Side.CLIENT);
}
@Override
public String getLaunchTarget() {
return MixinBootstrap.getPlatform().getLaunchTarget();
}
@Override
public String[] getLaunchArguments() {
ArrayList<String> argsFromOurTweakers = new ArrayList<>();
for (ITweaker i: allTweakers) {
argsFromOurTweakers.addAll(Arrays.asList(i.getLaunchArguments()));
}
//noinspection unchecked
ArrayList<String> launchArgs = (ArrayList<String>) Launch.blackboard.get("ArgumentList");
for (int i = 0; i < launchArgs.size(); i++) {
if (launchArgs.get(i).equals("--accessToken")) {
launchArgs.set(i + 1, "<noSessionAccessToken>");
}
}
if (!launchArgs.contains("--accessToken")) {
argsFromOurTweakers.add("--accessToken");
argsFromOurTweakers.add("<noSessionAccessToken>");
}
return argsFromOurTweakers.toArray(new String[0]);
}
}
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