2 files changed, 186 insertions, 0 deletions
diff --git a/src/main/java/gq/malwarefight/nosession/tweaks/CleanupTweaker.java b/src/main/java/gq/malwarefight/nosession/tweaks/CleanupTweaker.java
new file mode 100644
index 0000000..6deeeb0
--- /dev/null
+++ b/src/main/java/gq/malwarefight/nosession/tweaks/CleanupTweaker.java
@@ -0,0 +1,82 @@
+package gq.malwarefight.nosession.tweaks;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import net.minecraft.launchwrapper.ITweaker;
+import net.minecraft.launchwrapper.Launch;
+import net.minecraft.launchwrapper.LaunchClassLoader;
+import net.minecraftforge.fml.common.asm.ASMTransformerWrapper;
+
+import java.io.File;
+import java.lang.reflect.*;
+import java.net.URL;
+import java.net.URLStreamHandler;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import gq.malwarefight.nosession.utils.Utils;
+
+public class CleanupTweaker implements ITweaker {
+    /**
+     * Cached to avoid expensive reflection operations
+     */
+    public Method makeWrapper;
+
+    public CleanupTweaker() throws NoSuchMethodException {
+        makeWrapper = ASMTransformerWrapper.class.getDeclaredMethod("makeWrapper", String.class);
+        makeWrapper.setAccessible(true);
+    }
+    @Override
+    @SuppressWarnings("unchecked")
+    public void acceptOptions(List<String> args, File gameDir, File assetsDir, String profile) {
+        // add the FMLTweaker
+        ArrayList<String> tweakerList = (ArrayList<String>) Launch.blackboard.get("TweakClasses");
+        tweakerList.add("net.minecraftforge.fml.common.launcher.FMLTweaker");
+        // reset ASMTransformerWrapper
+        Class<ASMTransformerWrapper> cls = ASMTransformerWrapper.class;
+        try {
+            Utils.setStaticValue(cls, "wrapperModMap", new HashMap<String, String>());
+            Utils.setStaticValue(cls, "wrapperParentMap", new HashMap<String, String>());
+            Utils.setStaticValue(cls, "wrapperCache",  CacheBuilder.newBuilder().maximumSize(30L).weakValues().build(new CacheLoader<String, byte[]>() {
+                public byte[] load(String file) throws Exception {
+                    return (byte[]) makeWrapper.invoke(null, file);
+                }
+            }));
+            Utils.setStaticValue(cls, "asmGenRoot", new URL("asmgen", null, -1, "/", getAsmGenHandler()));
+            Utils.setStaticValue(cls, "injected", false);
+        } catch (Exception e) {
+            System.err.println("NoSession: Fixing ASMTransformerWrapper failed. Things may break.");
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void injectIntoClassLoader(LaunchClassLoader classLoader) {}
+
+    @Override
+    public String getLaunchTarget() {
+        return "net.minecraft.client.main.Main";
+    }
+
+    @Override
+    public String[] getLaunchArguments() {
+        return new String[0];
+    }
+
+
+
+    @SuppressWarnings("unchecked")
+    private URLStreamHandler getAsmGenHandler() throws InstantiationException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
+        Class<ASMTransformerWrapper> cls = ASMTransformerWrapper.class;
+        for (Class<?> candidate: cls.getDeclaredClasses()) {
+            if (candidate.getSimpleName().equals("ASMGenHandler")) {
+                Method pgdc = Class.class.getDeclaredMethod("privateGetDeclaredConstructors", boolean.class);
+                pgdc.setAccessible(true);
+                Constructor<? extends URLStreamHandler> constructor = ((Constructor<? extends URLStreamHandler>[]) pgdc.invoke(candidate, false))[0];
+                constructor.setAccessible(true);
+                return constructor.newInstance();
+            }
+        }
+        throw new RuntimeException("NoSession: unable to get the ASMGenHandler");
+    }
+}
diff --git a/src/main/java/gq/malwarefight/nosession/tweaks/InitialTweaker.java b/src/main/java/gq/malwarefight/nosession/tweaks/InitialTweaker.java
new file mode 100644
index 0000000..74d05f5
--- /dev/null
+++ b/src/main/java/gq/malwarefight/nosession/tweaks/InitialTweaker.java
@@ -0,0 +1,104 @@
+package gq.malwarefight.nosession.tweaks;
+
+import gq.malwarefight.nosession.relaunch.Relaunch;
+import gq.malwarefight.nosession.utils.Utils;
+import net.minecraft.launchwrapper.ITweaker;
+import net.minecraft.launchwrapper.Launch;
+import net.minecraft.launchwrapper.LaunchClassLoader;
+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.lang.management.ManagementFactory;
+import java.lang.management.RuntimeMXBean;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.net.Socket;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class InitialTweaker implements ITweaker {
+
+    public InitialTweaker() {
+        System.gc(); // try to garbage collect the earlier launch data
+    }
+
+    /**
+     * 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 version The game version
+     */
+    @Override
+    public final void acceptOptions(List<String> args, File gameDir, File assetsDir, String version) {
+        ArrayList<String> argsCopy = new ArrayList<>(args);
+        for (int i = 0; i < argsCopy.size(); i++) {
+            if (argsCopy.get(i).equals("--accessToken")) {
+                if (argsCopy.get(i + 1).equals("<noSessionAccessToken>")) {
+                    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();
+                                }
+                            })
+                    );
+                    return; // don't do anything, the change has already been made
+                }
+                try {
+                    Utils.setToken(args.get(i + 1));
+                } catch (Exception e) {
+                    throw new RuntimeException(e);
+                }
+                argsCopy.set(i + 1, "<noSessionAccessToken>");
+            }
+        }
+        System.out.println("=======================");
+        System.out.println("NoSession: relaunching without the token");
+        System.out.println("=======================");
+        try {
+            Relaunch.relaunch(argsCopy, gameDir, assetsDir, version);
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new RuntimeException(e);
+        }
+
+    }
+
+    /**
+     * 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() {
+        return new String[0];
+    }
+
+}