Desetude
/
openrs2
forked from openrs2/openrs2
1
0
Fork 0
Code Issues 6 Pull Requests Releases Wiki Activity

Convert Deobfuscator to Kotlin

Browse Source
master
Graham 5 years ago
parent 0f78c9582c
commit 0db3d979c9
2 changed files with 156 additions and 160 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 160
      deob/src/main/java/dev/openrs2/deob/Deobfuscator.java
  2. 156
      deob/src/main/java/dev/openrs2/deob/Deobfuscator.kt

160
deob/src/main/java/dev/openrs2/deob/Deobfuscator.java
Unescape View File

@ -1,160 +0,0 @@
package dev.openrs2.deob;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import com.google.common.collect.ImmutableList;
import dev.openrs2.asm.classpath.ClassPath;
import dev.openrs2.asm.classpath.Library;
import dev.openrs2.asm.transform.Transformer;
import dev.openrs2.bundler.Bundler;
import dev.openrs2.deob.remap.PrefixRemapper;
import dev.openrs2.deob.transform.AccessTransformer;
import dev.openrs2.deob.transform.BitShiftTransformer;
import dev.openrs2.deob.transform.BitwiseOpTransformer;
import dev.openrs2.deob.transform.CanvasTransformer;
import dev.openrs2.deob.transform.CounterTransformer;
import dev.openrs2.deob.transform.DummyArgTransformer;
import dev.openrs2.deob.transform.DummyLocalTransformer;
import dev.openrs2.deob.transform.ExceptionTracingTransformer;
import dev.openrs2.deob.transform.FieldOrderTransformer;
import dev.openrs2.deob.transform.OpaquePredicateTransformer;
import dev.openrs2.deob.transform.OriginalNameTransformer;
import dev.openrs2.deob.transform.RemapTransformer;
import dev.openrs2.deob.transform.ResetTransformer;
import dev.openrs2.deob.transform.UnusedArgTransformer;
import org.objectweb.asm.tree.analysis.AnalyzerException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public final class Deobfuscator {
private static final Logger logger = LoggerFactory.getLogger(Deobfuscator.class);
private static final ImmutableList<Transformer> TRANSFORMERS = ImmutableList.<Transformer>builder()
.add(new OriginalNameTransformer())
.addAll(Bundler.TRANSFORMERS)
.add(new OpaquePredicateTransformer())
.add(new ExceptionTracingTransformer())
.add(new BitShiftTransformer())
.add(new CounterTransformer())
.add(new CanvasTransformer())
.add(new FieldOrderTransformer())
.add(new BitwiseOpTransformer())
.add(new RemapTransformer())
.add(new DummyArgTransformer())
.add(new DummyLocalTransformer())
.add(new UnusedArgTransformer())
.add(new ResetTransformer())
.add(new AccessTransformer())
.build();
public static void main(String[] args) throws IOException, AnalyzerException {
var deobfuscator = new Deobfuscator(Paths.get("nonfree/code"), Paths.get("nonfree/code/deob"));
deobfuscator.run();
}
private final Path input, output;
public Deobfuscator(Path input, Path output) {
this.input = input;
this.output = output;
}
public void run() throws IOException, AnalyzerException {
/* read input jars/packs */
logger.info("Reading input jars");
var unpacker = Library.readJar(input.resolve("game_unpacker.dat"));
var glUnpacker = new Library(unpacker);
var loader = Library.readJar(input.resolve("loader.jar"));
var glLoader = Library.readJar(input.resolve("loader_gl.jar"));
var gl = Library.readPack(input.resolve("jaggl.pack200"));
var client = Library.readJar(input.resolve("runescape.jar"));
var glClient = Library.readPack(input.resolve("runescape_gl.pack200"));
// TODO(gpe): it'd be nice to have separate signlink.jar and
// signlink-unsigned.jar files so we don't (effectively) deobfuscate
// runescape.jar twice with different sets of names, but thinking about
// how this would work is tricky (as the naming must match)
var unsignedClient = new Library(client);
/* overwrite client's classes with signed classes from the loader */
logger.info("Moving signed classes from loader");
var signLink = new Library();
SignedClassUtils.move(loader, client, signLink);
logger.info("Moving signed classes from loader_gl");
var glSignLink = new Library();
SignedClassUtils.move(glLoader, glClient, glSignLink);
/* move unpack class out of the loader (so the unpacker and loader can both depend on it) */
logger.info("Moving unpack from loader to unpack");
var unpack = new Library();
unpack.add(loader.remove("unpack"));
logger.info("Moving unpack from loader_gl to unpack_gl");
var glUnpack = new Library();
glUnpack.add(glLoader.remove("unpack"));
/* move DRI classes out of jaggl (so we can place javah-generated headers in a separate directory) */
logger.info("Moving DRI classes from jaggl to jaggl_dri");
var glDri = new Library();
glDri.add(gl.remove("com/sun/opengl/impl/x11/DRIHack"));
glDri.add(gl.remove("com/sun/opengl/impl/x11/DRIHack$1"));
glDri.add(gl.remove("jaggl/X11/dri"));
/* prefix remaining loader/unpacker classes (to avoid conflicts when we rename in the same classpath as the client) */
logger.info("Prefixing loader and unpacker class names");
loader.remap(PrefixRemapper.create(loader, "loader_"));
glLoader.remap(PrefixRemapper.create(glLoader, "loader_"));
unpacker.remap(PrefixRemapper.create(unpacker, "unpacker_"));
glUnpacker.remap(PrefixRemapper.create(glUnpacker, "unpacker_"));
/* bundle libraries together into a common classpath */
var runtime = ClassLoader.getPlatformClassLoader();
var classPath = new ClassPath(runtime, ImmutableList.of(), ImmutableList.of(client, loader, signLink, unpack, unpacker));
var glClassPath = new ClassPath(runtime, ImmutableList.of(gl, glDri), ImmutableList.of(glClient, glLoader, glSignLink, glUnpack, glUnpacker));
var unsignedClassPath = new ClassPath(runtime, ImmutableList.of(), ImmutableList.of(unsignedClient));
/* deobfuscate */
logger.info("Transforming client");
for (var transformer : TRANSFORMERS) {
logger.info("Running transformer {}", transformer.getClass().getSimpleName());
transformer.transform(classPath);
}
logger.info("Transforming client_gl");
for (var transformer : TRANSFORMERS) {
logger.info("Running transformer {}", transformer.getClass().getSimpleName());
transformer.transform(glClassPath);
}
logger.info("Transforming client_unsigned");
for (var transformer : TRANSFORMERS) {
logger.info("Running transformer {}", transformer.getClass().getSimpleName());
transformer.transform(unsignedClassPath);
}
/* write output jars */
logger.info("Writing output jars");
Files.createDirectories(output);
client.writeJar(output.resolve("runescape.jar"));
loader.writeJar(output.resolve("loader.jar"));
signLink.writeJar(output.resolve("signlink.jar"));
unpack.writeJar(output.resolve("unpack.jar"));
unpacker.writeJar(output.resolve("unpacker.jar"));
gl.writeJar(output.resolve("jaggl.jar"));
glDri.writeJar(output.resolve("jaggl_dri.jar"));
glClient.writeJar(output.resolve("runescape_gl.jar"));
glLoader.writeJar(output.resolve("loader_gl.jar"));
glSignLink.writeJar(output.resolve("signlink_gl.jar"));
glUnpack.writeJar(output.resolve("unpack_gl.jar"));
glUnpacker.writeJar(output.resolve("unpacker_gl.jar"));
unsignedClient.writeJar(output.resolve("runescape_unsigned.jar"));
}
}

156
deob/src/main/java/dev/openrs2/deob/Deobfuscator.kt
Unescape View File

@ -0,0 +1,156 @@
package dev.openrs2.deob
import com.github.michaelbull.logging.InlineLogger
import com.google.common.collect.ImmutableList
import dev.openrs2.asm.classpath.ClassPath
import dev.openrs2.asm.classpath.Library
import dev.openrs2.asm.classpath.Library.Companion.readJar
import dev.openrs2.asm.classpath.Library.Companion.readPack
import dev.openrs2.bundler.Bundler
import dev.openrs2.deob.SignedClassUtils.move
import dev.openrs2.deob.remap.PrefixRemapper.create
import dev.openrs2.deob.transform.*
import org.objectweb.asm.tree.analysis.AnalyzerException
import java.io.IOException
import java.nio.file.Files
import java.nio.file.Path
import java.nio.file.Paths
class Deobfuscator(private val input: Path, private val output: Path) {
@Throws(IOException::class, AnalyzerException::class)
fun run() {
// read input jars/packs
logger.info { "Reading input jars" }
val unpacker = readJar(input.resolve("game_unpacker.dat"))
val glUnpacker = Library(unpacker)
val loader = readJar(input.resolve("loader.jar"))
val glLoader = readJar(input.resolve("loader_gl.jar"))
val gl = readPack(input.resolve("jaggl.pack200"))
val client = readJar(input.resolve("runescape.jar"))
val glClient = readPack(input.resolve("runescape_gl.pack200"))
// TODO(gpe): it'd be nice to have separate signlink.jar and
// signlink-unsigned.jar files so we don't (effectively) deobfuscate
// runescape.jar twice with different sets of names, but thinking about
// how this would work is tricky (as the naming must match)
val unsignedClient = Library(client)
// overwrite client's classes with signed classes from the loader
logger.info { "Moving signed classes from loader" }
val signLink = Library()
move(loader, client, signLink)
logger.info { "Moving signed classes from loader_gl" }
val glSignLink = Library()
move(glLoader, glClient, glSignLink)
// move unpack class out of the loader (so the unpacker and loader can both depend on it)
logger.info { "Moving unpack from loader to unpack" }
val unpack = Library()
unpack.add(loader.remove("unpack")!!)
logger.info { "Moving unpack from loader_gl to unpack_gl" }
val glUnpack = Library()
glUnpack.add(glLoader.remove("unpack")!!)
// move DRI classes out of jaggl (so we can place javah-generated headers in a separate directory)
logger.info { "Moving DRI classes from jaggl to jaggl_dri" }
val glDri = Library()
glDri.add(gl.remove("com/sun/opengl/impl/x11/DRIHack")!!)
glDri.add(gl.remove("com/sun/opengl/impl/x11/DRIHack$1")!!)
glDri.add(gl.remove("jaggl/X11/dri")!!)
// prefix remaining loader/unpacker classes (to avoid conflicts when we rename in the same classpath as the client)
logger.info { "Prefixing loader and unpacker class names" }
loader.remap(create(loader, "loader_"))
glLoader.remap(create(glLoader, "loader_"))
unpacker.remap(create(unpacker, "unpacker_"))
glUnpacker.remap(create(glUnpacker, "unpacker_"))
// bundle libraries together into a common classpath
val runtime = ClassLoader.getPlatformClassLoader()
val classPath = ClassPath(
runtime,
ImmutableList.of(),
ImmutableList.of(client, loader, signLink, unpack, unpacker)
)
val glClassPath = ClassPath(
runtime,
ImmutableList.of(gl, glDri),
ImmutableList.of(glClient, glLoader, glSignLink, glUnpack, glUnpacker)
)
val unsignedClassPath = ClassPath(
runtime,
ImmutableList.of(),
ImmutableList.of(unsignedClient)
)
// deobfuscate
logger.info { "Transforming client" }
for (transformer in TRANSFORMERS) {
logger.info { "Running transformer ${transformer.javaClass.simpleName} " }
transformer.transform(classPath)
}
logger.info { "Transforming client_gl" }
for (transformer in TRANSFORMERS) {
logger.info { "Running transformer ${transformer.javaClass.simpleName} " }
transformer.transform(glClassPath)
}
logger.info { "Transforming client_unsigned" }
for (transformer in TRANSFORMERS) {
logger.info { "Running transformer ${transformer.javaClass.simpleName} " }
transformer.transform(unsignedClassPath)
}
// write output jars
logger.info { "Writing output jars" }
Files.createDirectories(output)
client.writeJar(output.resolve("runescape.jar"))
loader.writeJar(output.resolve("loader.jar"))
signLink.writeJar(output.resolve("signlink.jar"))
unpack.writeJar(output.resolve("unpack.jar"))
unpacker.writeJar(output.resolve("unpacker.jar"))
gl.writeJar(output.resolve("jaggl.jar"))
glDri.writeJar(output.resolve("jaggl_dri.jar"))
glClient.writeJar(output.resolve("runescape_gl.jar"))
glLoader.writeJar(output.resolve("loader_gl.jar"))
glSignLink.writeJar(output.resolve("signlink_gl.jar"))
glUnpack.writeJar(output.resolve("unpack_gl.jar"))
glUnpacker.writeJar(output.resolve("unpacker_gl.jar"))
unsignedClient.writeJar(output.resolve("runescape_unsigned.jar"))
}
companion object {
private val logger = InlineLogger()
private val TRANSFORMERS = listOf(
OriginalNameTransformer(),
*Bundler.TRANSFORMERS.toTypedArray(),
OpaquePredicateTransformer(),
ExceptionTracingTransformer(),
BitShiftTransformer(),
CounterTransformer(),
CanvasTransformer(),
FieldOrderTransformer(),
BitwiseOpTransformer(),
RemapTransformer(),
DummyArgTransformer(),
DummyLocalTransformer(),
UnusedArgTransformer(),
ResetTransformer(),
AccessTransformer()
)
@Throws(IOException::class, AnalyzerException::class)
@JvmStatic
fun main(args: Array<String>) {
val deobfuscator = Deobfuscator(Paths.get("nonfree/code"), Paths.get("nonfree/code/deob"))
deobfuscator.run()
}
}
}
Write Preview
Loading…
Cancel
Save