Examples with ObfMapping codechicken.lib.asm.ObfMapping used on opensource projects

Example 1 with ObfMapping

use of codechicken.lib.asm.ObfMapping in project Galacticraft by micdoodle8.

the class InterfaceDependancyTransformer method transform.

@Override
public byte[] transform(String name, String tname, byte[] bytes) {
    if (bytes == null) {
        return null;
    }
    ClassNode cnode = ASMHelper.createClassNode(bytes);
    boolean hasDependancyInterfaces = false;
    if (cnode.visibleAnnotations != null) {
        for (AnnotationNode ann : cnode.visibleAnnotations) {
            if (ann.desc.equals(Type.getDescriptor(InterfaceDependancies.class))) {
                hasDependancyInterfaces = true;
                break;
            }
        }
    }
    if (!hasDependancyInterfaces) {
        return bytes;
    }
    hasDependancyInterfaces = false;
    for (Iterator<String> iterator = cnode.interfaces.iterator(); iterator.hasNext(); ) {
        try {
            Launch.classLoader.findClass(new ObfMapping(iterator.next()).toRuntime().javaClass());
        } catch (ClassNotFoundException cnfe) {
            iterator.remove();
            hasDependancyInterfaces = true;
        }
    }
    if (!hasDependancyInterfaces) {
        return bytes;
    }
    return ASMHelper.createBytes(cnode, 0);
}

Example 2 with ObfMapping

use of codechicken.lib.asm.ObfMapping in project Galacticraft by micdoodle8.

the class MCPDeobfuscationTransformer method injectCallback.

private byte[] injectCallback(byte[] bytes) {
    ClassNode cnode = ASMHelper.createClassNode(bytes);
    MethodNode mnode = ASMHelper.findMethod(new ObfMapping(cnode.name, "<clinit>", "()V"), cnode);
    mnode.instructions.insert(new MethodInsnNode(INVOKESTATIC, "codechicken/core/asm/MCPDeobfuscationTransformer", "loadCallback", "()V"));
    return ASMHelper.createBytes(cnode, 0);
}

Example 3 with ObfMapping

use of codechicken.lib.asm.ObfMapping in project Galacticraft by micdoodle8.

the class ConstantObfuscator method matchesDesc.

private boolean matchesDesc(AbstractInsnNode insn) {
    if (insn.getType() != LDC_INSN) {
        return false;
    }
    insn = insn.getNext();
    if (insn == null || insn.getType() != LDC_INSN) {
        return false;
    }
    insn = insn.getNext();
    if (insn == null || insn.getType() != LDC_INSN) {
        return false;
    }
    insn = insn.getNext();
    if (insn == null || insn.getType() != METHOD_INSN) {
        return false;
    }
    for (ObfMapping m : descCalls) {
        if (m.matches((MethodInsnNode) insn)) {
            return true;
        }
    }
    return false;
}

Example 4 with ObfMapping

use of codechicken.lib.asm.ObfMapping in project Galacticraft by micdoodle8.

the class ConstantObfuscator method obfuscateInsnSeq.

private void obfuscateInsnSeq(AbstractInsnNode insn) {
    if (matchesClass(insn)) {
        LdcInsnNode node1 = (LdcInsnNode) insn;
        node1.cst = obf.map((String) node1.cst);
    }
    if (matchesDesc(insn)) {
        LdcInsnNode node1 = (LdcInsnNode) insn;
        LdcInsnNode node2 = (LdcInsnNode) node1.getNext();
        LdcInsnNode node3 = (LdcInsnNode) node2.getNext();
        ObfMapping mapping = new ObfMapping((String) node1.cst, (String) node2.cst, (String) node3.cst).map(obf);
        node1.cst = mapping.s_owner;
        node2.cst = mapping.s_name;
        node3.cst = mapping.s_desc;
    }
}

Example 5 with ObfMapping

use of codechicken.lib.asm.ObfMapping in project Galacticraft by micdoodle8.

the class MCPDeobfuscationTransformer method remapAccessTransformer.

@SuppressWarnings("unchecked")
private static void remapAccessTransformer(IClassTransformer t) {
    Multimap<String, ?> modifiers = (Multimap<String, ?>) get(f_modifiers, t);
    Multimap<String, Object> t_modifiers = HashMultimap.create();
    for (Entry<String, ?> entry : modifiers.entries()) {
        Object mod = entry.getValue();
        String m_owner = entry.getKey().replace('.', '/');
        String m_name = (String) get(f_Modifier_name, mod);
        String m_desc = ((String) get(f_Modifier_desc, mod)).replace('.', '/');
        ObfMapping map;
        if (m_name.equals("*")) {
            map = new ObfMapping(m_owner);
            map.s_name = m_name;
            map.s_desc = m_desc;
        } else {
            try {
                map = new ObfMapping(m_owner, m_name, m_desc).toClassloading();
            } catch (Exception e) {
                new Object();
                continue;
            }
        }
        set(f_Modifier_name, mod, map.s_name);
        set(f_Modifier_desc, mod, map.s_desc);
        t_modifiers.put(map.javaClass(), mod);
    }
    set(f_modifiers, t, t_modifiers);
}