public static void renameClassNode(final String oldName, final String newName) {
for (ClassNode c : BytecodeViewer.getLoadedClasses()) {
for (Object oo : c.innerClasses) {
InnerClassNode innerClassNode = (InnerClassNode) oo;
if (innerClassNode.innerName != null && innerClassNode.innerName.equals(oldName)) {
innerClassNode.innerName = newName;
}
if (innerClassNode.name.equals(oldName)) {
innerClassNode.name = newName;
}
if (innerClassNode.outerName != null && innerClassNode.outerName.equals(oldName)) {
innerClassNode.outerName = newName;
}
}
if (c.signature != null) c.signature = c.signature.replace(oldName, newName);
if (c.superName.equals(oldName)) {
c.superName = newName;
}
for (Object o : c.fields.toArray()) {
FieldNode f = (FieldNode) o;
f.desc = f.desc.replace(oldName, newName);
}
for (Object o : c.interfaces.toArray()) {
String truxerLipton = (String) o;
truxerLipton = truxerLipton.replace(oldName, newName);
}
for (Object o : c.methods.toArray()) {
MethodNode m = (MethodNode) o;
if (m.localVariables != null) {
for (LocalVariableNode node : (List<LocalVariableNode>) m.localVariables) {
node.desc = node.desc.replace(oldName, newName);
}
}
if (m.signature != null) m.signature = m.signature.replace(oldName, newName);
for (int i = 0; i < m.exceptions.size(); i++) {
if (m.exceptions.get(i).equals(oldName)) m.exceptions.set(i, newName);
}
for (AbstractInsnNode i : m.instructions.toArray()) {
if (i instanceof TypeInsnNode) {
TypeInsnNode t = (TypeInsnNode) i;
if (t.desc.equals(oldName)) {
t.desc = newName;
}
}
if (i instanceof MethodInsnNode) {
MethodInsnNode mi = (MethodInsnNode) i;
if (mi.owner.equals(oldName)) mi.owner = newName;
mi.desc = mi.desc.replace(oldName, newName);
}
if (i instanceof FieldInsnNode) {
FieldInsnNode fi = (FieldInsnNode) i;
if (fi.owner.equals(oldName)) fi.owner = newName;
fi.desc = fi.desc.replace(oldName, newName);
}
}
}
}
}
@Override
public byte[] transform(String name, String transformedName, byte[] bytes) {
if (transformedName.equals("net.minecraft.block.BlockDynamicLiquid")
&& CoreLoadingPlugin.util.getBoolean("FiniteWater", false)) {
ClassReader reader = new ClassReader(bytes);
ClassNode node = new ClassNode();
reader.accept(node, 0);
InsnList getSmallestFlowDecay = new InsnList();
getSmallestFlowDecay.add(new VarInsnNode(ALOAD, 0));
getSmallestFlowDecay.add(new InsnNode(ICONST_0));
getSmallestFlowDecay.add(
new FieldInsnNode(
PUTFIELD, "net/minecraft/block/BlockDynamicLiquid", "field_149815_a", "I"));
for (MethodNode method : node.methods)
if ("func_149810_a"
.equals(
FMLDeobfuscatingRemapper.INSTANCE.mapMethodName(name, method.name, method.desc)))
method.instructions.insertBefore(method.instructions.getFirst(), getSmallestFlowDecay);
ClassWriter writer = new ClassWriter(0);
node.accept(writer);
return writer.toByteArray();
}
return bytes;
}
private static void transformIfNeccessary(File file) throws IOException {
InputStream is = new FileInputStream(file);
ClassNode cn;
try {
ClassReader cr = new ClassReader(is);
cn = new ClassNode();
cr.accept(cn, 0);
} finally {
is.close();
}
if (!isAlreadyTransformed(cn) && isAnnotationPresent(cn)) {
System.out.println("Transforming file " + file);
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
ClassVisitor ca = new CheckClassAdapter(cw);
ClassVisitor cv = new PropertyChangeSupportAdapter(ca);
cn.accept(cv);
FileOutputStream os = new FileOutputStream(file);
try {
os.write(cw.toByteArray());
} finally {
os.close();
}
}
}
@Override
public byte[] transform(String className, String transformedClassName, byte[] bytes) {
String methodName;
if (className.equals(OBF_CLASS)) {
methodName = SRG_METHOD;
} else if (className.equals(MCP_CLASS)) {
methodName = MCP_METHOD;
} else {
return bytes;
}
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(bytes);
classReader.accept(classNode, 0);
for (MethodNode method : classNode.methods) {
if (method.name.equals(methodName) && method.desc.equals(METHOD_DESC)) {
logger.info("CraftingTweaks will now patch {} in {}...", methodName, className);
MethodNode mn = new MethodNode();
Label notClicked = new Label();
// mn.visitMethodInsn(Opcodes.INVOKESTATIC, "org/lwjgl/input/Mouse", "getEventButtonState",
// "()Z", false);
// mn.visitJumpInsn(Opcodes.IFEQ, notClicked); // if getEventButtonState false, continue
// after
mn.visitVarInsn(Opcodes.ILOAD, 1); // push mouseX
mn.visitVarInsn(Opcodes.ILOAD, 2); // push mouseY
mn.visitVarInsn(Opcodes.ILOAD, 3); // push button
mn.visitMethodInsn(
Opcodes.INVOKESTATIC,
"net/blay09/mods/craftingtweaks/CraftingTweaks",
"onGuiClick",
"(III)Z",
false); // call onGuiClick
mn.visitJumpInsn(Opcodes.IFEQ, notClicked); // if onGuiClick false, continue after
mn.visitInsn(Opcodes.RETURN); // otherwise stop here
mn.visitLabel(notClicked); // continue from here
AbstractInsnNode insertAfter = null;
for (int i = 0; i < method.instructions.size(); i++) {
AbstractInsnNode node = method.instructions.get(i);
if (node instanceof VarInsnNode) {
if (node.getOpcode() == Opcodes.ISTORE && ((VarInsnNode) node).var == 3) { // ISTORE 3
insertAfter = node;
break;
}
}
}
if (insertAfter != null) {
method.instructions.insert(insertAfter, mn.instructions);
logger.info("CraftingTweaks successfully patched {} in {}!", methodName, className);
} else {
logger.warn(
"CraftingTweaks failed to patch {0}::{1} ({2} not found) - transfering into crafting grids will not work!",
className, methodName, "ISTORE 3");
}
}
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
classNode.accept(writer);
return writer.toByteArray();
}
@Override
public byte[] transform(String name, String transformedName, byte[] basicClass) {
if (!"net.minecraft.item.ItemStack".equals(name)) return basicClass;
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(basicClass);
classReader.accept(classNode, 0);
FieldNode itemField = null;
for (FieldNode f : classNode.fields) {
if (ITEM_TYPE.equals(f.desc) && itemField == null) {
itemField = f;
} else if (ITEM_TYPE.equals(f.desc)) {
throw new RuntimeException("Error processing ItemStack - found a duplicate Item field");
}
}
if (itemField == null) {
throw new RuntimeException(
"Error processing ItemStack - no Item field declared (is the code somehow obfuscated?)");
}
MethodNode getItemMethod = null;
for (MethodNode m : classNode.methods) {
if (GETITEM_DESC.equals(m.desc) && getItemMethod == null) {
getItemMethod = m;
} else if (GETITEM_DESC.equals(m.desc)) {
throw new RuntimeException("Error processing ItemStack - duplicate getItem method found");
}
}
if (getItemMethod == null) {
throw new RuntimeException(
"Error processing ItemStack - no getItem method found (is the code somehow obfuscated?)");
}
for (MethodNode m : classNode.methods) {
for (ListIterator<AbstractInsnNode> it = m.instructions.iterator(); it.hasNext(); ) {
AbstractInsnNode insnNode = it.next();
if (insnNode.getType() == AbstractInsnNode.FIELD_INSN) {
FieldInsnNode fi = (FieldInsnNode) insnNode;
if (itemField.name.equals(fi.name) && fi.getOpcode() == Opcodes.GETFIELD) {
it.remove();
MethodInsnNode replace =
new MethodInsnNode(
Opcodes.INVOKEVIRTUAL,
"net/minecraft/item/ItemStack",
getItemMethod.name,
getItemMethod.desc,
false);
it.add(replace);
}
}
}
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
classNode.accept(writer);
return writer.toByteArray();
}
private byte[] transformEntitySheep(byte[] bytes) {
System.out.println("Transforming EntitySheep...");
ClassNode cn = new ClassNode();
ClassReader cr = new ClassReader(bytes);
cr.accept(cn, 0);
Iterator<MethodNode> methods = cn.methods.iterator();
while (methods.hasNext()) {
MethodNode m = methods.next();
if (m.name.equals(names.get("entitySheep_setColour_func"))
&& m.desc.equals(names.get("entitySheep_setColour_desc"))) {
System.out.println("Found target method: " + m.name + m.desc + "! Inserting call...");
for (int idx = 0; idx < m.instructions.size(); idx++) {
if (m.instructions.get(idx).getOpcode() == Opcodes.ISTORE) {
System.out.println("Found ISTORE at index " + idx + ", inserting code afterwards...");
idx++; // AFTERwards, not before ;)
InsnList toAdd = new InsnList();
// to mark the end of the code
LabelNode lmmnode = new LabelNode(new Label());
// load this
toAdd.add(new VarInsnNode(Opcodes.ALOAD, 0));
// new fleece colour
toAdd.add(new VarInsnNode(Opcodes.ILOAD, 1));
// old fleece colour
toAdd.add(new VarInsnNode(Opcodes.ILOAD, 2));
toAdd.add(
new MethodInsnNode(
Opcodes.INVOKESTATIC,
"keepcalm/mods/events/ForgeEventHelper",
"onSheepDye",
"(L" + names.get("entitySheep_javaName") + ";II)Z"));
LabelNode endIf = new LabelNode(new Label());
toAdd.add(new JumpInsnNode(Opcodes.IFEQ, endIf));
toAdd.add(new InsnNode(Opcodes.RETURN));
toAdd.add(endIf);
toAdd.add(lmmnode);
m.instructions.insertBefore(m.instructions.get(idx), toAdd);
break;
}
}
}
}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
return cw.toByteArray();
}
protected byte[] transformClass(byte[] bytes, String clssname) {
InputStream is = getClass().getResourceAsStream("/" + clssname.replace('.', '/') + ".class");
ClassReader orig = null;
try {
ClassReader crRepl = new ClassReader(is);
ClassNode cnRepl = new ClassNode(Opcodes.ASM4);
crRepl.accept(cnRepl, ClassReader.SKIP_FRAMES);
ClassReader crOrig = new ClassReader(bytes);
ClassNode cnOrig = new ClassNode(Opcodes.ASM4);
crOrig.accept(cnOrig, ClassReader.SKIP_FRAMES);
for (Object ofnRepl : cnRepl.fields) {
FieldNode fnRepl = (FieldNode) ofnRepl;
if (hasReplaceAnnotation(fnRepl.visibleAnnotations)) {
FieldNode fnOrig = findField(cnOrig.fields, fnRepl);
if (fnOrig != null) {
cnOrig.fields.remove(fnOrig);
cnOrig.fields.add(cnOrig.fields.size(), scrubField(cnOrig, cnRepl, fnRepl));
}
} else if (hasAddAnnotation(fnRepl.visibleAnnotations)) {
cnOrig.fields.add(cnOrig.fields.size(), scrubField(cnOrig, cnRepl, fnRepl));
}
}
for (Object omnRepl : cnRepl.methods) {
MethodNode mnRepl = (MethodNode) omnRepl;
if (hasReplaceAnnotation(mnRepl.visibleAnnotations)) {
MethodNode mnOrig = findMethod(cnOrig.methods, mnRepl);
if (mnOrig != null) {
cnOrig.methods.remove(mnOrig);
cnOrig.methods.add(cnOrig.methods.size(), scrubMethod(cnOrig, cnRepl, mnRepl));
}
} else if (hasAddAnnotation(mnRepl.visibleAnnotations)) {
cnOrig.methods.add(cnOrig.methods.size() + 1, scrubMethod(cnOrig, cnRepl, mnRepl));
}
}
ClassWriter cwNew = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
cnOrig.accept(cwNew);
return cwNew.toByteArray();
} catch (IOException e) {
e.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
return bytes;
}
public byte[] transformCreeper(byte[] bytes) {
ClassNode cn = new ClassNode();
ClassReader cr = new ClassReader(bytes);
cr.accept(cn, 0);
// System.out.println("Transforming EntityCreeper...");
Iterator<MethodNode> methods = cn.methods.iterator();
while (methods.hasNext()) {
MethodNode m = methods.next();
// System.out.println(m.name + m.desc + " vs " + names.get("entityCreeper_onUpdate_func") +
// names.get("entityCreeper_onUpdate_desc"));
if (m.name.equals(names.get("entityCreeper_onUpdate_func"))
&& m.desc.equals(names.get("entityCreeper_onUpdate_desc"))) {
for (int i = m.instructions.size() - 1; i >= 0; i--) {
if (m.instructions.get(i).getOpcode() == Opcodes.IFNE) {
System.out.println("Found insertion point! inserting code!");
i++;
InsnList insns = new InsnList();
insns.add(new VarInsnNode(Opcodes.ALOAD, 0));
insns.add(
new MethodInsnNode(
Opcodes.INVOKESTATIC,
"keepcalm/mods/events/ForgeEventHelper",
"onCreeperExplode",
"(L" + names.get("entityCreeper_javaName") + ";)Z"));
LabelNode endIf = new LabelNode(new Label());
insns.add(new JumpInsnNode(Opcodes.IFEQ, endIf));
// insns.add(new VarInsnNode(Opcodes.ALOAD, 0));
// insns.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
// names.get("entityCreeper_javaName"), names.get("entityCreeper_setDead_func"),
// names.get("entityCreeper_setDead_desc")));
insns.add(new InsnNode(Opcodes.RETURN));
insns.add(endIf);
insns.add(new LabelNode(new Label()));
m.instructions.insertBefore(m.instructions.get(i), insns);
break;
}
}
}
}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
return cw.toByteArray();
}
public static byte[] getBytesFromClassNode(ClassNode c) {
ClassWriter w = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
c.accept(w);
byte[] b = w.toByteArray();
SquidAPIPlugin.LOGGER.info("Successfully transformed " + c.name.replace("/", "."), ".");
return b;
}
private void createAddMessage(ClassNode cn) {
Pattern p =
new PatternBuilder()
.add(
new InstructionElement(ALOAD),
new LdcElement(new LdcInsnNode("")),
new InstructionElement(ALOAD),
new InstructionElement(INVOKEVIRTUAL))
.build();
MethodInsnNode ebola1 = null;
for (MethodNode mn : cn.methods) {
if (!p.contains(mn.instructions)) continue;
int offset = p.getOffset(mn.instructions);
ebola1 = (MethodInsnNode) mn.instructions.get(offset + 3);
}
{
MethodVisitor mv =
cn.visitMethod(ACC_PUBLIC, "addChatMessage", "(Ljava/lang/String;)V", null, null);
mv.visitVarInsn(ALOAD, 0);
mv.visitLdcInsn("");
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(INVOKEVIRTUAL, ebola1.owner, ebola1.name, ebola1.desc, ebola1.itf);
mv.visitInsn(RETURN);
mv.visitEnd();
}
}
private static byte[] transform(int index, byte[] classBeingTransformed, boolean isObfuscated) {
LOG.info("Transforming: " + classesBeingTransformed[index]);
try {
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(classBeingTransformed);
classReader.accept(classNode, 0);
switch (index) {
case 0:
transformBiblioFramingChest(classNode, isObfuscated);
break;
}
ClassWriter classWriter =
new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
classNode.accept(classWriter);
return classWriter.toByteArray();
} catch (Exception e) {
e.printStackTrace();
}
return classBeingTransformed;
}
private byte[] transformNetServerHandler(byte[] bytes) {
ClassNode cn = new ClassNode();
ClassReader cr = new ClassReader(bytes);
cr.accept(cn, 0);
Iterator<MethodNode> methods = cn.methods.iterator();
while (methods.hasNext()) {
MethodNode m = methods.next();
if (m.name.equals(names.get("netServerHandler_handleFlying_func"))
&& m.desc.equals(names.get("netServerHandler_handleFlying_desc"))) {
System.out.println("Found target method: " + m.name + m.desc + "! Inserting code...");
InsnList toInsert = new InsnList();
toInsert.add(new VarInsnNode(Opcodes.ALOAD, 1));
toInsert.add(new VarInsnNode(Opcodes.ALOAD, 0));
toInsert.add(
new MethodInsnNode(
Opcodes.INVOKESTATIC,
"keepcalm/mods/events/ForgeEventHelper",
"onPlayerMove",
"(L"
+ names.get("packet10Flying_javaName")
+ ";L"
+ names.get("netServerHandler_javaName")
+ ";)Z"));
LabelNode endIf = new LabelNode(new Label());
toInsert.add(new JumpInsnNode(Opcodes.IFEQ, endIf));
toInsert.add(new InsnNode(Opcodes.RETURN));
toInsert.add(endIf);
toInsert.add(new LabelNode(new Label()));
m.instructions.insert(toInsert);
}
}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
return cw.toByteArray();
}
public byte[] finish(String name, String transformedName) {
if (currentClass == null) return null;
ClassWriter cw =
new ClassWriter(
0 /*ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS*/); // compute everything from
// scratch
currentClass.accept(cw);
currentClass = null;
byte[] ret = cw.toByteArray();
ret =
temporaryFixOfStuff(
name, transformedName, ret); // ret = fixSide(name, transformedName, ret);
return ret;
}
@Override
public byte[] transform(String name, byte[] bytes) {
if (bytes == null || name.equals("com.nexus.network.packets.Packet")) {
return bytes;
}
ClassReader cr = new ClassReader(bytes);
ClassNode classNode = new ClassNode();
cr.accept(classNode, 0);
try {
if (transformPacket(classNode)) {
ClassWriter cw = new ClassWriter(COMPUTE_MAXS | COMPUTE_FRAMES);
classNode.accept(cw);
return cw.toByteArray();
}
return bytes;
} catch (ClassCastException e) {
} catch (Exception e) {
e.printStackTrace();
}
return bytes;
}
private void fixFieldAccessInMethods() {
List<MethodNode> methods = new LinkedList<MethodNode>();
for (MethodNode methodNode : (List<MethodNode>) classNode.methods) {
MethodMetadata methodMetadata =
classMetadata.getMethodMetadata(methodNode.name, methodNode.desc);
if (methodMetadata.isTransactional()) {
methodNode = fixMethod(methodNode);
}
methods.add(methodNode);
}
classNode.methods = methods;
}
private void fixFields() {
List<FieldNode> fields = new LinkedList<FieldNode>();
for (FieldNode fieldNode : (List<FieldNode>) classNode.fields) {
FieldMetadata fieldMetadata = classMetadata.getFieldMetadata(fieldNode.name);
if (fieldMetadata.hasFieldGranularity()) {
String referenceDesc = findReferenceDesc(fieldNode.desc);
FieldNode fixedFieldNode =
new FieldNode(
ACC_SYNTHETIC + ACC_FINAL + ACC_PUBLIC,
fieldNode.name,
referenceDesc,
null, // signature
null // value
);
fields.add(fixedFieldNode);
} else {
fields.add(fieldNode);
}
}
classNode.fields = fields;
}
// 下記の想定で実装されています。
// EntityLiving.class の doRenderLiving の先頭に
// tutorial/test.class の passTestRender(EntityLiving, double, double, double)メソッドの呼び出しを追加する。
private byte[] hookOnItemRightClick(String className, byte[] bytes) {
// ASMで、bytesに格納されたクラスファイルを解析します。
ClassNode cnode = new ClassNode();
ClassReader reader = new ClassReader(bytes);
reader.accept(cnode, 0);
// 改変対象のメソッド名です
String targetMethodName = "onItemRightClick";
String targetMethodNameSRG = "func_77659_a";
// 改変対象メソッドの戻り値型および、引数型をあらわします ※１
String targetMethoddesc =
"(Lnet/minecraft/item/ItemStack;Lnet/minecraft/world/World;Lnet/minecraft/entity/player/EntityPlayer;)Lnet/minecraft/item/ItemStack;";
String targetMethoddescSRG =
"(Lnet/minecraft/item/ItemStack;Lnet/minecraft/world/World;Lnet/minecraft/entity/player/EntityPlayer;)Lnet/minecraft/item/ItemStack;";
// 対象のメソッドを検索取得します。
MethodNode mnode = null;
String mdesc = null;
for (MethodNode curMnode : cnode.methods) {
String mName =
FMLDeobfuscatingRemapper.INSTANCE.mapMethodName(className, curMnode.name, curMnode.desc);
String mdName = FMLDeobfuscatingRemapper.INSTANCE.mapMethodDesc(curMnode.desc);
// System.out.println("[ " + mName + " : " + curMnode.name + " ] [ " + mdName + " : " +
// curMnode.desc);
if ((targetMethodName.equals(curMnode.name) && targetMethoddesc.equals(curMnode.desc))
|| (targetMethodNameSRG.equals(mName) && targetMethoddescSRG.equals(mdName))) {
mnode = curMnode;
mdesc = curMnode.desc;
break;
}
}
if (mnode != null) {
InsnList overrideList = new InsnList();
// メソッドコールを、バイトコードであらわした例です。
overrideList.add(new VarInsnNode(ALOAD, 1));
overrideList.add(new VarInsnNode(ALOAD, 2));
overrideList.add(new VarInsnNode(ALOAD, 3));
overrideList.add(
new MethodInsnNode(
INVOKESTATIC,
"shift/sextiarysector/asm/vanilla/BottleMethod",
"onBottleRightClick",
mdesc,
false));
overrideList.add(new InsnNode(ARETURN));
// mnode.instructions.get(1)で、対象のメソッドの先頭を取得
// mnode.instructions.insertで、指定した位置にバイトコードを挿入します。
mnode.instructions.insert(mnode.instructions.get(1), overrideList);
// mnode.maxLocals = 4;
// 改変したクラスファイルをバイト列に書き出します
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
cnode.accept(cw);
bytes = cw.toByteArray();
System.out.println("bbbb");
}
return bytes;
}
public static byte[] getBytesFromClassNodeNoMsg(ClassNode c) {
ClassWriter w = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
c.accept(w);
byte[] b = w.toByteArray();
return b;
}
@Override
public byte[] transform(String name, String transformedName, byte[] bytes) {
if (bytes == null) {
return null;
}
if (DEBUG) {
FMLRelaunchLog.fine("Considering all methods and fields on %s (%s)\n", name, transformedName);
}
if (!modifiers.containsKey(name)) {
return bytes;
}
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(bytes);
classReader.accept(classNode, 0);
Collection<Modifier> mods = modifiers.get(name);
for (Modifier m : mods) {
if (m.modifyClassVisibility) {
classNode.access = getFixedAccess(classNode.access, m);
if (DEBUG) {
System.out.println(
String.format(
"Class: %s %s -> %s", name, toBinary(m.oldAccess), toBinary(m.newAccess)));
}
continue;
}
if (m.desc.isEmpty()) {
for (FieldNode n : classNode.fields) {
if (n.name.equals(m.name) || m.name.equals("*")) {
n.access = getFixedAccess(n.access, m);
if (DEBUG) {
System.out.println(
String.format(
"Field: %s.%s %s -> %s",
name, n.name, toBinary(m.oldAccess), toBinary(m.newAccess)));
}
if (!m.name.equals("*")) {
break;
}
}
}
} else {
for (MethodNode n : classNode.methods) {
if ((n.name.equals(m.name) && n.desc.equals(m.desc)) || m.name.equals("*")) {
n.access = getFixedAccess(n.access, m);
if (DEBUG) {
System.out.println(
String.format(
"Method: %s.%s%s %s -> %s",
name, n.name, n.desc, toBinary(m.oldAccess), toBinary(m.newAccess)));
}
if (!m.name.equals("*")) {
break;
}
}
}
}
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
classNode.accept(writer);
return writer.toByteArray();
}
private synchronized void load() {
if (LOAD_LOCAL) {
System.out.println("Loading local gamepack.");
final File gamepack = new File("gamepack.jar");
if (!gamepack.exists()) {
System.out.println("Unable to load local gamepack.");
System.out.println();
return;
}
System.out.println("Successfully loaded local gamepack.");
System.out.println();
System.out.println("Loading classes.");
try {
final JarFile jar = new JarFile(gamepack);
final Enumeration<JarEntry> entries = jar.entries();
int loaded = 0;
while (entries.hasMoreElements()) {
final JarEntry entry = entries.nextElement();
String name = entry.getName();
if (!name.endsWith(".class") || name.contains("/")) {
continue;
}
name = name.substring(0, name.length() - 6);
final ClassReader cr = new ClassReader(jar.getInputStream(entry));
final ClassNode cn = new ClassNode();
cr.accept(cn, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
classes.put(name, cn);
loaded++;
}
System.out.println("Successfully loaded " + loaded + " classes.");
} catch (final IOException e) {
System.out.println("Unable to load classes.");
}
} else {
final byte[] gamepack = getGamepack();
if (gamepack == null) {
return;
}
System.out.println();
final Map<String, byte[]> innerpack = decryptGamepack(gamepack);
if (innerpack == null) {
return;
}
System.out.println();
System.out.println("Loading classes.");
int loaded = 0;
for (final Map.Entry<String, byte[]> entry : innerpack.entrySet()) {
final String name = entry.getKey();
final ClassReader cr = new ClassReader(entry.getValue());
final ClassNode cn = new ClassNode();
cr.accept(cn, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
classes.put(name, cn);
loaded++;
}
System.out.println("Successfully loaded " + loaded + " classes.");
try {
final FileOutputStream fos = new FileOutputStream(new File("gamepack.jar"));
final JarOutputStream jos = new JarOutputStream(fos);
for (final Map.Entry<String, ClassNode> entry : classes.entrySet()) {
final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
final ClassNode cn = entry.getValue();
cn.accept(cw);
jos.putNextEntry(new JarEntry(cn.name + ".class"));
jos.write(cw.toByteArray());
jos.closeEntry();
}
jos.close();
fos.close();
} catch (final Exception ignored) {
}
}
System.out.println();
}
public byte[] patchOnUpdate(String name, byte[] bytes, boolean obfuscated) {
RMLog.info("[EntityPlayer] [onUpdate] Patching", true);
String targetMethodName = "";
if (obfuscated == true) targetMethodName = "h";
else targetMethodName = "onUpdate";
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(bytes);
classReader.accept(classNode, 0);
Iterator<MethodNode> methods = classNode.methods.iterator();
while (methods.hasNext()) {
MethodNode method = methods.next();
int invok_index = -1;
if ((method.name.equals(targetMethodName) && method.desc.equals("()V"))) {
AbstractInsnNode currentNode = null;
AbstractInsnNode targetNode = null;
Iterator<AbstractInsnNode> iter = method.instructions.iterator();
int index = -1;
int GETFIELD_COUNT = 0;
while (iter.hasNext()) {
index++;
currentNode = iter.next();
if (currentNode.getOpcode() == Opcodes.GETFIELD) {
GETFIELD_COUNT++;
if (GETFIELD_COUNT == 13) {
targetNode = currentNode;
invok_index = index;
break;
}
}
}
if (targetNode == null || invok_index == -1) {
RMLog.info(
"[EntityPlayer] Did not find all necessary target nodes! ABANDON CLASS!", true);
return bytes;
}
/*
* mv.visitLineNumber(305, l19);
* mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
* mv.visitVarInsn(ALOAD, 0);
* -- mv.visitFieldInsn(GETFIELD, "net/minecraft/entity/player/EntityPlayer", "worldObj", "Lnet/minecraft/world/World;");
* mv.visitFieldInsn(GETFIELD, "net/minecraft/world/World", "isRemote", "Z");
* Label l21 = new Label();
* mv.visitJumpInsn(IFNE, l21);
*/
@SuppressWarnings("unused")
AbstractInsnNode p1, p2, p3;
p1 = method.instructions.get(invok_index - 1); // mv.visitVarInsn(ALOAD, 0);
p2 = method.instructions.get(invok_index); // mv.visitFieldInsn(GETFIELD,
// "net/minecraft/entity/player/EntityPlayer", "worldObj",
// "Lnet/minecraft/world/World;");
p3 =
method.instructions.get(
invok_index
+ 1); // mv.visitFieldInsn(GETFIELD, "net/minecraft/world/World", "isRemote",
// "Z");
// method.instructions.remove(p1);
// method.instructions.remove(p2);
// method.instructions.remove(p3);
MethodInsnNode m1 =
new MethodInsnNode(
Opcodes.INVOKESTATIC,
"net/roryclaasen/asm/rorysmodcore/transformer/StaticClass",
"shouldWakeUp",
"(Lnet/minecraft/entity/player/EntityPlayer;)Z",
false);
method.instructions.set(p2, m1);
method.instructions.remove(p3);
break;
}
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
classNode.accept(writer);
return writer.toByteArray();
}
public void visitEnd() {
classNode.accept(cv);
}
@SuppressWarnings("unchecked")
private void modify(ClassNode node) {
if (!mappings.containsKey(node.name)) return;
JSONObject object = mappings.get(node.name);
String identity = (String) object.get("identity");
String parentOverride = (String) object.get("parent_override");
if (parentOverride != null && !parentOverride.equals("null")) {
node.superName = parentOverride;
if (node.superName.contains("Canvas")) {
for (MethodNode mn : (List<MethodNode>) node.methods) {
if (mn.name.equals("<init>")) {
for (AbstractInsnNode insn : mn.instructions.toArray()) {
if (insn.getOpcode() == Opcodes.INVOKESPECIAL) {
MethodInsnNode min = (MethodInsnNode) insn;
if (min.owner.contains("Canvas")) {
min.owner = node.superName;
}
}
}
}
}
}
// System.out.println("\t"+node.name+" parent changed to "+parentOverride);
}
JSONArray interfaces = (JSONArray) object.get("interfaces");
for (int i = 0; i < interfaces.size(); i++) {
if (!node.interfaces.contains(interfaces.get(i))) {
// System.out.println("\tAdded interface " + interfaces.get(i) + " to " + identity + " (" +
// node.name + ")");
node.interfaces.add(interfaces.get(i));
}
}
// remove interfaces not specified
for (int i = 0; i < node.interfaces.size(); i++) {
if (!interfaces.contains(node.interfaces.get(i))) {
// System.out.println("\tRemoved interface " + node.interfaces.get(i) + " from " + identity
// + " (" + node.name + ")");
node.interfaces.remove(i);
}
}
if (identity.equals("Renderable")) {
for (MethodNode mn : (List<MethodNode>) node.methods) {
if ((mn.access & Opcodes.ACC_STATIC) != 0) {
continue;
}
if (!mn.desc.endsWith("V")) {
continue;
}
InstructionSearcher searcher =
new InstructionSearcher(mn.instructions, 0, Opcodes.INVOKEVIRTUAL, Opcodes.ASTORE);
if (searcher.match()) {
InstructionSearcher search =
new InstructionSearcher(mn.instructions, 0, Opcodes.INVOKEVIRTUAL);
AbstractInsnNode[] primMatches = searcher.getMatches().get(0);
if (search.match()) {
AbstractInsnNode[] matches = search.getMatches().get(1);
VarInsnNode var = new VarInsnNode(Opcodes.ALOAD, 0);
VarInsnNode var2 =
new VarInsnNode(
Opcodes.ALOAD, ((VarInsnNode) primMatches[primMatches.length - 1]).var);
mn.instructions.insert(matches[matches.length - 1], var);
mn.instructions.insert(var, var2);
mn.instructions.insert(
var2,
new MethodInsnNode(
Opcodes.INVOKESTATIC,
"org/vinsert/bot/script/callback/ModelCallback",
"callback",
"(Lorg/vinsert/insertion/IRenderable;Lorg/vinsert/insertion/IModel;)V"));
// System.out.println("\tInserted model callback to "+node.name+"."+mn.name);
}
}
}
}
// if (identity.equals("GameObject")) {
// for (MethodNode mn : (List<MethodNode>) node.methods) {
// if ((mn.access & Opcodes.ACC_STATIC) != 0) {
// continue;
// }
//
// if (mn.desc.endsWith("V")) {
// continue;
// }
//
// InstructionSearcher searcher = new InstructionSearcher(mn.instructions, 10, Opcodes.LDC,
// Opcodes.IMUL, Opcodes.LDC, Opcodes.INVOKEVIRTUAL, Opcodes.ARETURN);
//
// if (searcher.match()) {
//
// AbstractInsnNode[] matches = searcher.getMatches().get(0);
//
// VarInsnNode var = new VarInsnNode(Opcodes.ALOAD, 0);
// VarInsnNode var2 = new VarInsnNode(Opcodes.ALOAD, ((VarInsnNode) matches[matches.length -
// 1]).var);
////
// mn.instructions.insert(mn.instructions.get(mn.instructions.size() - 1), var);
// mn.instructions.insert(var, var2);
// mn.instructions.insert(var2, new MethodInsnNode(Opcodes.INVOKESTATIC,
// "com/hijackrs/bot/script/callback/ModelCallback", "callback",
// "(Lcom/hijackrs/insertion/Renderable;Lcom/hijackrs/insertion/Model;)V"));
// System.out.println("\tInserted model callback to "+node.name+"."+mn.name);
// }
// }
// }
JSONArray mappings = (JSONArray) object.get("mappings");
for (int i = 0; i < mappings.size(); i++) {
JSONObject entry = (JSONObject) mappings.get(i);
String parent = (String) entry.get("parent");
String name = (String) entry.get("name");
String getterName = (String) entry.get("identity");
String signature = (String) entry.get("signature");
String fieldSignature = (String) entry.get("field_signature");
boolean isStatic = (Boolean) entry.get("static");
int opLoad = ((Number) entry.get("op_load")).intValue();
int opReturn = ((Number) entry.get("op_return")).intValue();
int modBits = ((Number) entry.get("mod_bits")).intValue();
int modDirect = ((Number) entry.get("mod_value")).intValue();
boolean modInverse = (Boolean) entry.get("mod_inverse");
insert(
node,
parent,
name,
getterName,
signature,
fieldSignature,
isStatic,
opLoad,
opReturn,
modBits,
modDirect,
modInverse);
}
}
@Override
public byte[] transform(String name, String transformedName, byte[] basicClass) {
if (!name.startsWith("lc.")) return basicClass;
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(basicClass);
classReader.accept(classNode, 0);
List<FieldNode> fields = classNode.fields;
if (fields == null || fields.size() == 0) return basicClass;
HashMap<String, String> fieldToClazzMap = new HashMap<String, String>();
Iterator<FieldNode> iq = fields.iterator();
while (iq.hasNext()) {
FieldNode field = iq.next();
AnnotationNode hintNode = ASMAssist.findAnnotation(field, "Llc/api/defs/HintProvider;");
if (hintNode != null) {
Side theSide = FMLCommonHandler.instance().getSide();
if (theSide == Side.CLIENT) {
String className = ASMAssist.findValue(hintNode, "clientClass");
if (className != null) fieldToClazzMap.put(field.name, className.replace(".", "/"));
} else {
String className = ASMAssist.findValue(hintNode, "serverClass");
if (className != null) fieldToClazzMap.put(field.name, className.replace(".", "/"));
}
}
}
if (fieldToClazzMap.size() != 0) {
LCLog.debug("Adding %s hint field initializer mappings.", fieldToClazzMap.size());
Iterator<MethodNode> methods = classNode.methods.iterator();
MethodNode initMethod = null;
while (methods.hasNext()) {
MethodNode method = methods.next();
if (method.name.equals("<init>")) {
initMethod = method;
break;
}
}
AbstractInsnNode lastInsn = null;
if (initMethod == null) {
initMethod = new MethodNode(Opcodes.ACC_PUBLIC, "<init>", "()V", "", null);
lastInsn = new InsnNode(Opcodes.RETURN);
initMethod.instructions.add(lastInsn);
} else
for (Iterator<AbstractInsnNode> insns = initMethod.instructions.iterator();
insns.hasNext(); ) {
AbstractInsnNode node = insns.next();
if (node.getOpcode() == Opcodes.RETURN) lastInsn = node;
}
for (Entry<String, String> mapping : fieldToClazzMap.entrySet()) {
LCLog.debug(
"Adding mapping for hint %s to class initializer %s.",
mapping.getKey(), mapping.getValue());
initMethod.instructions.insertBefore(lastInsn, new VarInsnNode(Opcodes.ALOAD, 0));
initMethod.instructions.insertBefore(
lastInsn, new TypeInsnNode(Opcodes.NEW, mapping.getValue()));
initMethod.instructions.insertBefore(lastInsn, new InsnNode(Opcodes.DUP));
initMethod.instructions.insertBefore(
lastInsn,
new MethodInsnNode(Opcodes.INVOKESPECIAL, mapping.getValue(), "<init>", "()V", false));
initMethod.instructions.insertBefore(
lastInsn,
new FieldInsnNode(
Opcodes.PUTFIELD,
name.replace(".", "/"),
mapping.getKey(),
"Llc/common/IHintProvider;"));
}
if (initMethod.maxStack < fieldToClazzMap.size() * 4)
initMethod.maxStack += fieldToClazzMap.size() * 4;
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
classNode.accept(writer);
return writer.toByteArray();
}
private byte[] transformLightningBolt(byte[] bytes) {
ClassNode cn = new ClassNode();
ClassReader cr = new ClassReader(bytes);
cr.accept(cn, 0);
Iterator<MethodNode> methods = cn.methods.iterator();
while (methods.hasNext()) {
MethodNode m = methods.next();
if (m.name.equals("<init>")) {
System.out.println("Found constructor in EntityLightningBolt, searching for landmarks...");
AbstractInsnNode mark1 = null;
AbstractInsnNode mark2 = null;
AbstractInsnNode firstEndIf = null;
AbstractInsnNode secondEndIf = null;
InsnList insns1 = new InsnList();
insns1.add(new VarInsnNode(Opcodes.ALOAD, 0));
insns1.add(new VarInsnNode(Opcodes.ALOAD, 1));
insns1.add(new VarInsnNode(Opcodes.ILOAD, 8));
insns1.add(new VarInsnNode(Opcodes.ILOAD, 9));
insns1.add(new VarInsnNode(Opcodes.ILOAD, 10));
insns1.add(
new MethodInsnNode(
Opcodes.INVOKESTATIC,
"keepcalm/mods/events/ForgeEventHelper",
"onLightningStrike",
"(L"
+ names.get("entityLightningBolt_javaName")
+ ";L"
+ names.get("world_javaName")
+ ";III)Z"));
LabelNode endIf1 = new LabelNode(new Label());
insns1.add(new JumpInsnNode(Opcodes.IFNE, endIf1));
InsnList insns2 = new InsnList();
insns1.add(new InsnNode(Opcodes.ACONST_NULL));
insns2.add(new VarInsnNode(Opcodes.ALOAD, 1));
insns2.add(new VarInsnNode(Opcodes.ILOAD, 9));
insns2.add(new VarInsnNode(Opcodes.ILOAD, 10));
insns2.add(new VarInsnNode(Opcodes.ILOAD, 11));
insns2.add(
new MethodInsnNode(
Opcodes.INVOKESTATIC,
"keepcalm/mods/events/ForgeEventHelper",
"onLightningStrike",
"(L"
+ names.get("entityLightningBolt_javaName")
+ ";L"
+ names.get("world_javaName")
+ ";III)Z"));
LabelNode endIf2 = new LabelNode(new Label());
insns2.add(new JumpInsnNode(Opcodes.IFNE, endIf2));
boolean firstInvokeV = false;
for (int i = 0; i < m.instructions.size(); i++) {
if (m.instructions.get(i).getOpcode() == Opcodes.IFEQ) {
if (mark1 != null) mark2 = m.instructions.get(i).getNext();
else mark1 = m.instructions.get(i).getNext();
}
if (m.instructions.get(i).getOpcode() == Opcodes.INVOKEVIRTUAL
&& !firstInvokeV
&& mark1 != null) {
firstEndIf = m.instructions.get(i).getNext();
} else if (m.instructions.get(i).getOpcode() == Opcodes.INVOKEVIRTUAL
&& mark2 != null
&& firstInvokeV) {
secondEndIf = m.instructions.get(i).getNext();
}
}
m.instructions.insertBefore(mark1, insns1);
m.instructions.insertBefore(firstEndIf, endIf1);
m.instructions.insertBefore(mark2, insns2);
m.instructions.insertBefore(secondEndIf, endIf2);
}
}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
return cw.toByteArray();
}
// too lazy to deobfuscate all network/chat stuff, use info from method
// calls to create new send message function
private void createSendMessage(ClassNode cn) {
Pattern p =
new PatternBuilder()
.add(
new InstructionElement(INVOKESTATIC),
new AnyElement(),
new LdcElement(new LdcInsnNode("Chat")),
new InstructionElement(INVOKEVIRTUAL))
.build();
MethodInsnNode newBuilder = null;
MethodInsnNode setChatText = null;
MethodInsnNode ebola1 = null;
MethodInsnNode ebola2 = null;
MethodInsnNode ebola3 = null;
MethodInsnNode ebola4 = null;
MethodInsnNode ebola5 = null;
MethodInsnNode ebola6 = null;
MethodInsnNode ebola7 = null;
for (MethodNode mn : cn.methods) {
if (!p.contains(mn.instructions)) continue;
int offset = p.getOffset(mn.instructions);
newBuilder = (MethodInsnNode) mn.instructions.get(offset - 9); // newbuilder
// then var insn of parameter, ldc or w/e
setChatText = (MethodInsnNode) mn.instructions.get(offset - 7); // setchattext
ebola1 = (MethodInsnNode) mn.instructions.get(offset - 6); // U a
ebola2 = (MethodInsnNode) mn.instructions.get(offset - 5); // U p
ebola3 = (MethodInsnNode) mn.instructions.get(offset - 4); // Player
// r
ebola4 = (MethodInsnNode) mn.instructions.get(offset - 3); // setMapID
ebola5 = (MethodInsnNode) mn.instructions.get(offset - 2); // build
// store that crap
ebola6 = (MethodInsnNode) mn.instructions.get(offset); // i e
// load crap again
// LDC "Chat"
ebola7 = (MethodInsnNode) mn.instructions.get(offset + 3); // i a
}
{
MethodVisitor mv =
cn.visitMethod(ACC_PUBLIC, "sendChatMessage", "(Ljava/lang/String;)V", null, null);
mv.visitMethodInsn(
INVOKESTATIC, newBuilder.owner, newBuilder.name, newBuilder.desc, newBuilder.itf);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(
INVOKEVIRTUAL, setChatText.owner, setChatText.name, setChatText.desc, setChatText.itf);
mv.visitMethodInsn(INVOKESTATIC, ebola1.owner, ebola1.name, ebola1.desc, ebola1.itf);
mv.visitMethodInsn(INVOKEVIRTUAL, ebola2.owner, ebola2.name, ebola2.desc, ebola2.itf);
mv.visitMethodInsn(INVOKEVIRTUAL, ebola3.owner, ebola3.name, ebola3.desc, ebola3.itf);
mv.visitMethodInsn(INVOKEVIRTUAL, ebola4.owner, ebola4.name, ebola4.desc, ebola4.itf);
mv.visitMethodInsn(INVOKEVIRTUAL, ebola5.owner, ebola5.name, ebola5.desc, ebola5.itf);
mv.visitVarInsn(ASTORE, 2);
mv.visitMethodInsn(INVOKESTATIC, ebola6.owner, ebola6.name, ebola6.desc, ebola6.itf);
mv.visitVarInsn(ALOAD, 2);
mv.visitLdcInsn("Chat");
mv.visitMethodInsn(INVOKEVIRTUAL, ebola7.owner, ebola7.name, ebola7.desc, ebola7.itf);
mv.visitInsn(RETURN);
mv.visitMaxs(2, 2);
mv.visitEnd();
}
}
@Override
public byte[] transform(
ClassLoader loader,
String className,
Class<?> classBeingRedefined,
ProtectionDomain protectionDomain,
byte[] classfileBuffer)
throws IllegalClassFormatException {
if (classBeingRedefined != null) {
return null;
}
if (className.startsWith("java/")
|| className.startsWith("javax/")
|| className.startsWith("sun/")) {
return null;
}
List<MethodNode> coroutineMethodsInCurrentClass;
boolean debug = generateDebugCode;
boolean print = printCode;
boolean verify = runVerification;
boolean outputBin = generateBinaryOutput;
boolean asmComputeFrames = overrideFrames;
if (!detectCoroutineClasses) {
int classnameIndex = Arrays.binarySearch(coroutineEnabledClassnames, className);
if (classnameIndex < 0) {
// search package
String packageName = className;
int indexOfSlash;
while ((indexOfSlash = packageName.lastIndexOf('/')) != -1) {
packageName = packageName.substring(0, indexOfSlash);
classnameIndex = Arrays.binarySearch(coroutineEnabledClassnames, packageName);
if (classnameIndex >= 0) {
break;
}
}
if (classnameIndex < 0) return null;
}
debug = debugMode[classnameIndex];
print = printMode[classnameIndex];
verify = verifyMode[classnameIndex];
outputBin = outputBinMode[classnameIndex];
asmComputeFrames = overrideFramesMode[classnameIndex];
}
boolean log = logger.isLoggable(Level.FINEST);
if (log) {
logger.finest(className + ": Analyzing");
}
ClassReader asmClassReader = new ClassReader(classfileBuffer);
ClassNode cn = new ClassNode();
asmClassReader.accept(cn, debug ? 0 : ClassReader.SKIP_DEBUG);
ClassAnalyzer analyzer = new ClassAnalyzer(cn);
analyzer.analyze();
coroutineMethodsInCurrentClass = analyzer.getCoroutineMethods();
if (coroutineMethodsInCurrentClass.isEmpty()) {
return null;
}
if (log) {
logger.finest(
className
+ ": Instrumenting coroutines "
+ methodNodeListToString(coroutineMethodsInCurrentClass));
}
ClassWriter asmClassWriter =
new ClassWriter(
(asmComputeFrames ? ClassWriter.COMPUTE_FRAMES : 0) | ClassWriter.COMPUTE_MAXS);
ClassVisitor cv = asmClassWriter;
byte[] instrumentedClassContents;
try {
if (print) {
try {
cv = createTracer(className, cv);
} catch (FileNotFoundException e) {
throw new CoroutineGenerationException("Unable to write trace file ", e);
}
}
new ClassTransformer(cn, coroutineMethodsInCurrentClass, debug).transform();
cn.accept(cv);
instrumentedClassContents = asmClassWriter.toByteArray();
if (verify) {
verifyClass(className, new ClassReader(instrumentedClassContents), print);
}
if (outputBin) {
dumpClass(className + "Instrumented", instrumentedClassContents);
}
} catch (IllegalStateException e) {
logger.log(Level.WARNING, "Verification failed", e);
return null;
} catch (IllegalArgumentException e) {
logger.log(Level.WARNING, "Verification failed", e);
return null;
} catch (CoroutineGenerationException e) {
logger.warning(e.getMessage());
return null;
} catch (Throwable t) {
logger.log(
Level.SEVERE,
"Coroutine generation ended abruptly. This may be a bug in the package itself. Details below:",
t);
return null;
}
return instrumentedClassContents;
}
@Override
public byte[] transform(String name, String transformedName, byte[] bytes) {
if (bytes == null) {
return null;
}
boolean makeAllPublic = FMLDeobfuscatingRemapper.INSTANCE.isRemappedClass(name);
if (DEBUG) {
FMLRelaunchLog.fine(
"Considering all methods and fields on %s (%s): %b\n",
name, transformedName, makeAllPublic);
}
if (!makeAllPublic && !modifiers.containsKey(name)) {
return bytes;
}
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(bytes);
classReader.accept(classNode, 0);
if (makeAllPublic) {
// class
Modifier m = new Modifier();
m.targetAccess = ACC_PUBLIC;
m.modifyClassVisibility = true;
modifiers.put(name, m);
// fields
m = new Modifier();
m.targetAccess = ACC_PUBLIC;
m.name = "*";
modifiers.put(name, m);
// methods
m = new Modifier();
m.targetAccess = ACC_PUBLIC;
m.name = "*";
m.desc = "<dummy>";
modifiers.put(name, m);
if (DEBUG) {
System.out.printf("Injected all public modifiers for %s (%s)\n", name, transformedName);
}
}
Collection<Modifier> mods = modifiers.get(name);
for (Modifier m : mods) {
if (m.modifyClassVisibility) {
classNode.access = getFixedAccess(classNode.access, m);
if (DEBUG) {
System.out.println(
String.format(
"Class: %s %s -> %s", name, toBinary(m.oldAccess), toBinary(m.newAccess)));
}
continue;
}
if (m.desc.isEmpty()) {
for (FieldNode n : classNode.fields) {
if (n.name.equals(m.name) || m.name.equals("*")) {
n.access = getFixedAccess(n.access, m);
if (DEBUG) {
System.out.println(
String.format(
"Field: %s.%s %s -> %s",
name, n.name, toBinary(m.oldAccess), toBinary(m.newAccess)));
}
if (!m.name.equals("*")) {
break;
}
}
}
} else {
for (MethodNode n : classNode.methods) {
if ((n.name.equals(m.name) && n.desc.equals(m.desc)) || m.name.equals("*")) {
n.access = getFixedAccess(n.access, m);
if (DEBUG) {
System.out.println(
String.format(
"Method: %s.%s%s %s -> %s",
name, n.name, n.desc, toBinary(m.oldAccess), toBinary(m.newAccess)));
}
if (!m.name.equals("*")) {
break;
}
}
}
}
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
classNode.accept(writer);
return writer.toByteArray();
}
