Examples with Annotation net.runelite.asm.attributes.annotation.Annotation used on opensource projects

Example 6 with Annotation

use of net.runelite.asm.attributes.annotation.Annotation in project runelite by runelite.

the class InjectHookMethod method process.

public void process(Method method) throws InjectionException {
    Annotations an = method.getAnnotations();
    if (an == null) {
        return;
    }
    Annotation a = an.find(DeobAnnotations.HOOK);
    if (a == null) {
        return;
    }
    // Method is hooked
    // String hookName = DeobAnnotations.getHookName(an); // hook name
    // Find equivalent method in vanilla, and insert callback at the beginning
    ClassFile cf = method.getClassFile();
    String obfuscatedMethodName = DeobAnnotations.getObfuscatedName(an), obfuscatedClassName = DeobAnnotations.getObfuscatedName(cf.getAnnotations());
    // might be a constructor
    if (obfuscatedMethodName == null && method.getName().equals("<init>")) {
        obfuscatedMethodName = "<init>";
    }
    assert obfuscatedClassName != null : "hook on method in class with no obfuscated name";
    assert obfuscatedMethodName != null : "hook on method with no obfuscated name";
    Signature obfuscatedSignature = inject.getMethodSignature(method);
    ClassGroup vanilla = inject.getVanilla();
    ClassFile vanillaClass = vanilla.findClass(obfuscatedClassName);
    Method vanillaMethod = vanillaClass.findMethod(obfuscatedMethodName, obfuscatedSignature);
    // Insert instructions at beginning of method
    injectHookMethod(a, method, vanillaMethod);
}

Example 7 with Annotation

use of net.runelite.asm.attributes.annotation.Annotation in project runelite by runelite.

the class DeobAnnotations method getObfuscatedValue.

public static String getObfuscatedValue(Method method) {
    if (method == null || method.getAnnotations() == null) {
        return null;
    }
    Annotation an = method.getAnnotations().find(OBFUSCATED_SIGNATURE);
    if (an == null) {
        return null;
    }
    List<Element> elements = an.getElements();
    if (elements == null || elements.size() < 2) {
        return null;
    }
    return (String) elements.get(1).getValue();
}

Example 8 with Annotation

use of net.runelite.asm.attributes.annotation.Annotation in project runelite by runelite.

the class MixinInjector method injectMethods.

private void injectMethods(ClassFile mixinCf, ClassFile cf, Map<net.runelite.asm.pool.Field, Field> shadowFields) throws InjectionException {
    // Keeps mappings between methods annotated with @Copy -> the copied method within the vanilla pack
    Map<net.runelite.asm.pool.Method, CopiedMethod> copiedMethods = new HashMap<>();
    // Handle the copy mixins first, so all other mixins know of the copies
    for (Method method : mixinCf.getMethods()) {
        Annotation copyAnnotation = method.getAnnotations().find(COPY);
        if (copyAnnotation == null) {
            continue;
        }
        String deobMethodName = (String) copyAnnotation.getElement().getValue();
        ClassFile deobCf = inject.toDeobClass(cf);
        Method deobMethod = findDeobMethod(deobCf, deobMethodName, method.getDescriptor());
        if (deobMethod == null) {
            throw new InjectionException("Failed to find the deob method " + deobMethodName + " for mixin " + mixinCf);
        }
        if (method.isStatic() != deobMethod.isStatic()) {
            throw new InjectionException("Mixin method " + method + " should be " + (deobMethod.isStatic() ? "static" : "non-static"));
        }
        // Find the vanilla class where the method to copy is in
        String obClassName = DeobAnnotations.getObfuscatedName(deobMethod.getClassFile().getAnnotations());
        ClassFile obCf = inject.getVanilla().findClass(obClassName);
        assert obCf != null : "unable to find vanilla class from obfuscated name " + obClassName;
        String obMethodName = DeobAnnotations.getObfuscatedName(deobMethod.getAnnotations());
        Signature obMethodSignature = DeobAnnotations.getObfuscatedSignature(deobMethod);
        if (obMethodName == null) {
            obMethodName = deobMethod.getName();
        }
        if (obMethodSignature == null) {
            obMethodSignature = deobMethod.getDescriptor();
        }
        Method obMethod = obCf.findMethod(obMethodName, obMethodSignature);
        if (obMethod == null) {
            throw new InjectionException("Failed to find the ob method " + obMethodName + " for mixin " + mixinCf);
        }
        if (method.getDescriptor().size() > obMethod.getDescriptor().size()) {
            throw new InjectionException("Mixin methods cannot have more parameters than their corresponding ob method");
        }
        Method copy = new Method(cf, "copy$" + deobMethodName, obMethodSignature);
        moveCode(copy, obMethod.getCode());
        copy.setAccessFlags(obMethod.getAccessFlags());
        copy.setPublic();
        copy.getExceptions().getExceptions().addAll(obMethod.getExceptions().getExceptions());
        copy.getAnnotations().getAnnotations().addAll(obMethod.getAnnotations().getAnnotations());
        cf.addMethod(copy);
        /*
				If the desc for the mixin method and the desc for the ob method
				are the same in length, assume that the mixin method is taking
				care of the garbage parameter itself.
			 */
        boolean hasGarbageValue = method.getDescriptor().size() != obMethod.getDescriptor().size() && deobMethod.getDescriptor().size() < obMethodSignature.size();
        copiedMethods.put(method.getPoolMethod(), new CopiedMethod(copy, hasGarbageValue));
        logger.debug("Injected copy of {} to {}", obMethod, copy);
    }
    // Handle the rest of the mixin types
    for (Method method : mixinCf.getMethods()) {
        boolean isClinit = "<clinit>".equals(method.getName());
        boolean isInit = "<init>".equals(method.getName());
        boolean hasInject = method.getAnnotations().find(INJECT) != null;
        // You can't annotate clinit, so its always injected
        if ((hasInject && isInit) || isClinit) {
            if (!"()V".equals(method.getDescriptor().toString())) {
                throw new InjectionException("Injected constructors cannot have arguments");
            }
            Method[] originalMethods = cf.getMethods().stream().filter(n -> n.getName().equals(method.getName())).toArray(Method[]::new);
            // If there isn't a <clinit> already just inject ours, otherwise rename it
            // This is always true for <init>
            String name = method.getName();
            if (originalMethods.length > 0) {
                name = "rl$$" + (isInit ? "init" : "clinit");
            }
            String numberlessName = name;
            for (int i = 1; cf.findMethod(name, method.getDescriptor()) != null; i++) {
                name = numberlessName + i;
            }
            Method copy = new Method(cf, name, method.getDescriptor());
            moveCode(copy, method.getCode());
            copy.setAccessFlags(method.getAccessFlags());
            copy.setPrivate();
            assert method.getExceptions().getExceptions().isEmpty();
            // Remove the call to the superclass's ctor
            if (isInit) {
                Instructions instructions = copy.getCode().getInstructions();
                ListIterator<Instruction> listIter = instructions.getInstructions().listIterator();
                for (; listIter.hasNext(); ) {
                    Instruction instr = listIter.next();
                    if (instr instanceof InvokeSpecial) {
                        InvokeSpecial invoke = (InvokeSpecial) instr;
                        assert invoke.getMethod().getName().equals("<init>");
                        listIter.remove();
                        int pops = invoke.getMethod().getType().getArguments().size() + 1;
                        for (int i = 0; i < pops; i++) {
                            listIter.add(new Pop(instructions));
                        }
                        break;
                    }
                }
            }
            setOwnersToTargetClass(mixinCf, cf, copy, shadowFields, copiedMethods);
            cf.addMethod(copy);
            // Call our method at the return point of the matching method(s)
            for (Method om : originalMethods) {
                Instructions instructions = om.getCode().getInstructions();
                ListIterator<Instruction> listIter = instructions.getInstructions().listIterator();
                for (; listIter.hasNext(); ) {
                    Instruction instr = listIter.next();
                    if (instr instanceof ReturnInstruction) {
                        listIter.previous();
                        if (isInit) {
                            listIter.add(new ALoad(instructions, 0));
                            listIter.add(new InvokeSpecial(instructions, copy.getPoolMethod()));
                        } else if (isClinit) {
                            listIter.add(new InvokeStatic(instructions, copy.getPoolMethod()));
                        }
                        listIter.next();
                    }
                }
            }
            logger.debug("Injected mixin method {} to {}", copy, cf);
        } else if (hasInject) {
            // Make sure the method doesn't invoke copied methods
            for (Instruction i : method.getCode().getInstructions().getInstructions()) {
                if (i instanceof InvokeInstruction) {
                    InvokeInstruction ii = (InvokeInstruction) i;
                    if (copiedMethods.containsKey(ii.getMethod())) {
                        throw new InjectionException("Injected methods cannot invoke copied methods");
                    }
                }
            }
            Method copy = new Method(cf, method.getName(), method.getDescriptor());
            moveCode(copy, method.getCode());
            copy.setAccessFlags(method.getAccessFlags());
            copy.setPublic();
            assert method.getExceptions().getExceptions().isEmpty();
            setOwnersToTargetClass(mixinCf, cf, copy, shadowFields, copiedMethods);
            cf.addMethod(copy);
            logger.debug("Injected mixin method {} to {}", copy, cf);
        } else if (method.getAnnotations().find(REPLACE) != null) {
            Annotation replaceAnnotation = method.getAnnotations().find(REPLACE);
            String deobMethodName = (String) replaceAnnotation.getElement().getValue();
            ClassFile deobCf = inject.toDeobClass(cf);
            Method deobMethod = findDeobMethod(deobCf, deobMethodName, method.getDescriptor());
            if (deobMethod == null) {
                throw new InjectionException("Failed to find the deob method " + deobMethodName + " for mixin " + mixinCf);
            }
            if (method.isStatic() != deobMethod.isStatic()) {
                throw new InjectionException("Mixin method " + method + " should be " + (deobMethod.isStatic() ? "static" : "non-static"));
            }
            String obMethodName = DeobAnnotations.getObfuscatedName(deobMethod.getAnnotations());
            Signature obMethodSignature = DeobAnnotations.getObfuscatedSignature(deobMethod);
            // Deob signature is the same as ob signature
            if (obMethodName == null) {
                obMethodName = deobMethod.getName();
            }
            if (obMethodSignature == null) {
                obMethodSignature = deobMethod.getDescriptor();
            }
            // Find the vanilla class where the method to copy is in
            String obClassName = DeobAnnotations.getObfuscatedName(deobMethod.getClassFile().getAnnotations());
            ClassFile obCf = inject.getVanilla().findClass(obClassName);
            Method obMethod = obCf.findMethod(obMethodName, obMethodSignature);
            assert obMethod != null : "obfuscated method " + obMethodName + obMethodSignature + " does not exist";
            if (method.getDescriptor().size() > obMethod.getDescriptor().size()) {
                throw new InjectionException("Mixin methods cannot have more parameters than their corresponding ob method");
            }
            Type returnType = method.getDescriptor().getReturnValue();
            Type deobReturnType = inject.apiTypeToDeobfuscatedType(returnType);
            if (!returnType.equals(deobReturnType)) {
                ClassFile deobReturnTypeClassFile = inject.getDeobfuscated().findClass(deobReturnType.getInternalName());
                if (deobReturnTypeClassFile != null) {
                    ClassFile obReturnTypeClass = inject.toObClass(deobReturnTypeClassFile);
                    Instructions instructions = method.getCode().getInstructions();
                    ListIterator<Instruction> listIter = instructions.getInstructions().listIterator();
                    for (; listIter.hasNext(); ) {
                        Instruction instr = listIter.next();
                        if (instr instanceof ReturnInstruction) {
                            listIter.previous();
                            CheckCast checkCast = new CheckCast(instructions);
                            checkCast.setType(new Type(obReturnTypeClass.getName()));
                            listIter.add(checkCast);
                            listIter.next();
                        }
                    }
                }
            }
            moveCode(obMethod, method.getCode());
            boolean hasGarbageValue = method.getDescriptor().size() != obMethod.getDescriptor().size() && deobMethod.getDescriptor().size() < obMethodSignature.size();
            if (hasGarbageValue) {
                int garbageIndex = obMethod.isStatic() ? obMethod.getDescriptor().size() - 1 : obMethod.getDescriptor().size();
                /*
						If the mixin method doesn't have the garbage parameter,
						the compiler will have produced code that uses the garbage
						parameter's local variable index for other things,
						so we'll have to add 1 to all loads/stores to indices
						that are >= garbageIndex.
					 */
                shiftLocalIndices(obMethod.getCode().getInstructions(), garbageIndex);
            }
            setOwnersToTargetClass(mixinCf, cf, obMethod, shadowFields, copiedMethods);
            logger.debug("Replaced method {} with mixin method {}", obMethod, method);
        }
    }
}

Example 9 with Annotation

use of net.runelite.asm.attributes.annotation.Annotation in project runelite by runelite.

the class MixinInjector method injectFieldHooks.

private void injectFieldHooks(Map<Class<?>, List<ClassFile>> mixinClasses) throws InjectionException {
    InjectHook injectHook = new InjectHook(inject);
    for (Class<?> mixinClass : mixinClasses.keySet()) {
        ClassFile mixinCf;
        try {
            mixinCf = loadClass(mixinClass);
        } catch (IOException ex) {
            throw new InjectionException(ex);
        }
        List<ClassFile> targetCfs = mixinClasses.get(mixinClass);
        for (ClassFile cf : targetCfs) {
            for (Method method : mixinCf.getMethods()) {
                Annotation fieldHook = method.getAnnotations().find(FIELDHOOK);
                if (fieldHook != null) {
                    String hookName = fieldHook.getElement().getString();
                    ClassFile deobCf = inject.toDeobClass(cf);
                    Field targetField = deobCf.findField(hookName);
                    if (targetField == null) {
                        // first try non static fields, then static
                        targetField = findDeobField(hookName);
                    }
                    if (targetField == null) {
                        throw new InjectionException("Field hook for nonexistent field " + hookName + " on " + method);
                    }
                    Field obField = inject.toObField(targetField);
                    if (method.isStatic() != targetField.isStatic()) {
                        throw new InjectionException("Field hook method static flag must match target field");
                    }
                    // cf is the target class to invoke
                    InjectHook.HookInfo hookInfo = new InjectHook.HookInfo();
                    hookInfo.clazz = cf.getName();
                    hookInfo.fieldName = hookName;
                    hookInfo.method = method.getName();
                    hookInfo.staticMethod = method.isStatic();
                    injectHook.hook(obField, hookInfo);
                }
            }
        }
    }
    injectHook.run();
    logger.info("Injected {} field hooks", injectHook.getInjectedHooks());
}

Example 10 with Annotation

use of net.runelite.asm.attributes.annotation.Annotation in project runelite by runelite.

the class Renamer method run.

@Override
public void run(ClassGroup group) {
    group.buildClassGraph();
    group.lookup();
    int classes = 0, fields = 0, methods = 0;
    // rename fields
    for (ClassFile cf : group.getClasses()) {
        for (Field field : cf.getFields()) {
            String newName = mappings.get(field.getPoolField());
            if (newName == null) {
                continue;
            }
            if (field.getAnnotations().find(DeobAnnotations.OBFUSCATED_NAME) == null) {
                field.getAnnotations().addAnnotation(DeobAnnotations.OBFUSCATED_NAME, "value", field.getName());
            }
            field.setName(newName);
            ++fields;
        }
    }
    // rename methods
    for (ClassFile cf : group.getClasses()) {
        for (Method method : cf.getMethods()) {
            String newName = mappings.get(method.getPoolMethod());
            // rename on obfuscated signature
            Annotation an = method.getAnnotations().find(DeobAnnotations.OBFUSCATED_SIGNATURE);
            if (an != null) {
                Signature obfuscatedSig = new Signature(an.getElement().getString());
                Signature updatedSig = renameSignature(obfuscatedSig);
                an.getElement().setValue(updatedSig.toString());
            }
            if (newName == null) {
                continue;
            }
            List<Method> virtualMethods = VirtualMethods.getVirtualMethods(method);
            assert !virtualMethods.isEmpty();
            for (Method m : virtualMethods) {
                if (m.getAnnotations().find(DeobAnnotations.OBFUSCATED_NAME) == null) {
                    m.getAnnotations().addAnnotation(DeobAnnotations.OBFUSCATED_NAME, "value", m.getName());
                }
                m.setName(newName);
            }
            methods += virtualMethods.size();
        }
    }
    for (ClassFile cf : group.getClasses()) {
        String newName = mappings.get(cf.getPoolClass());
        if (newName == null) {
            continue;
        }
        renameClass(group, cf, newName);
        ++classes;
    }
    this.regeneratePool(group);
    logger.info("Renamed {} classes, {} fields, and {} methods", classes, fields, methods);
}