List of usage examples for org.objectweb.asm.tree MethodInsnNode MethodInsnNode
public MethodInsnNode(final int opcode, final String owner, final String name, final String descriptor)
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformTileEntityPiston(byte[] bytes) { /*try//from w w w . j a va 2s . c o m { FileOutputStream fos = new FileOutputStream("d:/TileEntityPiston.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching TileEntityPiston.class ........"); boolean ok = false, ok2 = false, ok3 = false, ok4 = false, ok5 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("<init>") && m.desc.equals("(IIIZZ)V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(ACONST_NULL)); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "bpmeta", "I")); m.instructions.insertBefore(m.instructions.get(index), toInject); ok = true; break; } } } else if (m.name.equals("f") && m.desc.equals("()V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abv") && ((MethodInsnNode) m.instructions.get(index)).name.equals("g") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(IIII)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "bpmeta", "I")); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "setBlockBPdata", "(Labv;IIII)Z")); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); LabelNode l1 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l1)); toInject.add(new FieldInsnNode(GETSTATIC, "aqw", "s", "[Laqw;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "a", "I")); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "b", "I")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "aqw", "createTileEntity", "(Labv;I)Lasm;")); toInject.add(new VarInsnNode(ASTORE, 1)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "asm", "a", "(Lbx;)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "abv", "a", "(IIILasm;)V")); toInject.add(l1); m.instructions.insert(m.instructions.get(index), toInject); ok2 = true; break; } } } else if (m.name.equals("a") && m.desc.equals("(Lbx;)V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "b", "(Ljava/lang/String;)Z")); LabelNode l1 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l1)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "c", "(Ljava/lang/String;)B")); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "bpmeta", "I")); toInject.add(l1); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("TileEntityData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "b", "(Ljava/lang/String;)Z")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l0)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("TileEntityData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "l", "(Ljava/lang/String;)Lbx;")); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(l0); m.instructions.insertBefore(m.instructions.get(index), toInject); ok3 = true; break; } } } else if (m.name.equals("b") && m.desc.equals("(Lbx;)V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "bpmeta", "I")); toInject.add(new InsnNode(I2B)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "a", "(Ljava/lang/String;B)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("TileEntityData")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "a", "(Ljava/lang/String;Lbx;)V")); toInject.add(l0); m.instructions.insertBefore(m.instructions.get(index), toInject); ok4 = true; break; } } } else if (m.name.equals("h") && m.desc.equals("()V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abv") && ((MethodInsnNode) m.instructions.get(index)).name.equals("g") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(IIII)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "bpmeta", "I")); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "setBlockBPdata", "(Labv;IIII)Z")); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l0)); toInject.add(new FieldInsnNode(GETSTATIC, "aqw", "s", "[Laqw;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "a", "I")); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "b", "I")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "aqw", "createTileEntity", "(Labv;I)Lasm;")); toInject.add(new VarInsnNode(ASTORE, 1)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "asm", "a", "(Lbx;)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "abv", "a", "(IIILasm;)V")); toInject.add(l0); m.instructions.insert(m.instructions.get(index), toInject); ok5 = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok && ok2 && ok3 && ok4 && ok5) System.out.println("OK"); else System.out.println("Failed." + ok + ok2 + ok3 + ok4 + ok5); FieldVisitor fv; fv = cw.visitField(ACC_PUBLIC, "movingBlockTileEntityData", "Lbx;", null, null); fv.visitEnd(); fv = cw.visitField(ACC_PUBLIC, "bpmeta", "I", null, null); fv.visitEnd(); cw.visitEnd(); /*try { FileOutputStream fos = new FileOutputStream("d:/TileEntityPiston.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformAnvilChunkLoader(byte[] bytes) { /*try/*from w w w . j a v a 2 s .c om*/ { FileOutputStream fos = new FileOutputStream("d:/AnvilChunkLoader.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching AnvilChunkLoader.class ........"); boolean ok = false, ok2 = false, ok3 = false, ok4 = false, ok6 = false, ok7 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("a") && m.desc.equals("(Ladq;Labv;Lbx;)V")) { int var1 = 9; for (int index = 0; index < m.instructions.size(); index++) { if (ok3) break; if (m.instructions.get(index).getOpcode() == INVOKESPECIAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("bx") && ((MethodInsnNode) m.instructions.get(index)).name.equals("<init>") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("()V")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ASTORE) { var1 = ((VarInsnNode) m.instructions.get(index2)).var; ok3 = true; break; } } } } int var2 = 11; for (int index = 0; index < m.instructions.size(); index++) { if (ok4) break; if (m.instructions.get(index).getType() == AbstractInsnNode.LDC_INSN && ((LdcInsnNode) m.instructions.get(index)).cst.equals("Data")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ALOAD) { var2 = ((VarInsnNode) m.instructions.get(index2)).var; ok4 = true; break; } } } } for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("cf") && ((MethodInsnNode) m.instructions.get(index)).name.equals("a") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Lck;)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, var1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new VarInsnNode(ALOAD, var2)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "getBPdataArray", "()[B")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "a", "(Ljava/lang/String;[B)V")); m.instructions.insertBefore(m.instructions.get(index - 2), toInject); ok = true; break; } } } else if (m.name.equals("a") && m.desc.equals("(Labv;Lbx;)Ladq;")) { int var1 = 11; for (int index = 0; index < m.instructions.size(); index++) { if (ok6) break; if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("cf") && ((MethodInsnNode) m.instructions.get(index)).name.equals("b") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(I)Lck;")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ASTORE) { var1 = ((VarInsnNode) m.instructions.get(index2)).var; ok6 = true; break; } } } } int var2 = 13; for (int index = 0; index < m.instructions.size(); index++) { if (ok7) break; if (m.instructions.get(index).getOpcode() == INVOKESPECIAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("adr") && ((MethodInsnNode) m.instructions.get(index)).name.equals("<init>") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(IZ)V")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ASTORE) { var2 = ((VarInsnNode) m.instructions.get(index2)).var; ok7 = true; break; } } } } for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("adr") && ((MethodInsnNode) m.instructions.get(index)).name.equals("e") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("()V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, var1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "b", "(Ljava/lang/String;)Z")); LabelNode l6 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l6)); toInject.add(new VarInsnNode(ALOAD, var2)); toInject.add(new VarInsnNode(ALOAD, var1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "j", "(Ljava/lang/String;)[B")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "setBPdataArray", "([B)V")); LabelNode l7 = new LabelNode(); toInject.add(new JumpInsnNode(GOTO, l7)); toInject.add(l6); toInject.add(new FrameNode(Opcodes.F_SAME, 0, null, 0, null)); toInject.add(new VarInsnNode(ALOAD, var2)); toInject.add(new IntInsnNode(SIPUSH, 4096)); toInject.add(new IntInsnNode(NEWARRAY, T_BYTE)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "setBPdataArray", "([B)V")); toInject.add(l7); m.instructions.insertBefore(m.instructions.get(index - 1), toInject); ok2 = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok && ok2 && ok3 && ok4 && ok6 && ok7) System.out.println("OK"); else System.out.println("Failed." + ok + ok2 + ok3 + ok4 + ok6 + ok7); /*try { FileOutputStream fos = new FileOutputStream("d:/AnvilChunkLoader.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformBlockPhysics(byte[] bytes) { /*try/* w w w . ja v a2 s.co m*/ { FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ try { Class.forName("org.bukkit.Bukkit"); System.out.println("[BlockPhysics] Bukkit detected."); } catch (ClassNotFoundException e) { return bytes; } System.out.print("[BlockPhysics] Patching BlockPhysics.class ............"); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("tickBlocksRandomMove") && m.desc.equals("(Ljr;)V")) { m.instructions.clear(); m.localVariables.clear(); InsnList toInject = new InsnList(); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "skipMove", "Z")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l0)); toInject.add(new InsnNode(RETURN)); toInject.add(l0); toInject.add(new FrameNode(Opcodes.F_SAME, 0, null, 0, null)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jr", "G", "Lgnu/trove/map/hash/TLongShortHashMap;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "gnu/trove/map/hash/TLongShortHashMap", "iterator", "()Lgnu/trove/iterator/TLongShortIterator;")); toInject.add(new VarInsnNode(ASTORE, 1)); LabelNode l1 = new LabelNode(); toInject.add(l1); toInject.add(new FrameNode(Opcodes.F_APPEND, 1, new Object[] { "gnu/trove/iterator/TLongShortIterator" }, 0, null)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "hasNext", "()Z")); LabelNode l2 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l2)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "advance", "()V")); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add( new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "key", "()J")); toInject.add(new VarInsnNode(LSTORE, 2)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(LLOAD, 2)); toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToX", "(J)I")); toInject.add(new VarInsnNode(ISTORE, 4)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(LLOAD, 2)); toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToZ", "(J)I")); toInject.add(new VarInsnNode(ISTORE, 5)); toInject.add(new VarInsnNode(ILOAD, 4)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(IMUL)); toInject.add(new VarInsnNode(ISTORE, 6)); toInject.add(new VarInsnNode(ILOAD, 5)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(IMUL)); toInject.add(new VarInsnNode(ISTORE, 7)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ILOAD, 4)); toInject.add(new VarInsnNode(ILOAD, 5)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "jr", "e", "(II)Ladq;")); toInject.add(new VarInsnNode(ASTORE, 8)); toInject.add(new VarInsnNode(ALOAD, 8)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adq", "i", "()[Ladr;")); toInject.add(new VarInsnNode(ASTORE, 12)); toInject.add(new VarInsnNode(ALOAD, 12)); toInject.add(new InsnNode(ARRAYLENGTH)); toInject.add(new VarInsnNode(ISTORE, 9)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new VarInsnNode(ISTORE, 10)); LabelNode l3 = new LabelNode(); toInject.add(l3); toInject.add(new FrameNode(Opcodes.F_FULL, 12, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" }, 0, new Object[] {})); toInject.add(new VarInsnNode(ILOAD, 10)); toInject.add(new VarInsnNode(ILOAD, 9)); LabelNode l4 = new LabelNode(); toInject.add(new JumpInsnNode(IF_ICMPGE, l4)); toInject.add(new VarInsnNode(ALOAD, 12)); toInject.add(new VarInsnNode(ILOAD, 10)); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ASTORE, 13)); toInject.add(new VarInsnNode(ALOAD, 13)); LabelNode l5 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l5)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new VarInsnNode(ISTORE, 14)); LabelNode l6 = new LabelNode(); toInject.add(l6); toInject.add(new FrameNode(Opcodes.F_APPEND, 2, new Object[] { "adr", Opcodes.INTEGER }, 0, null)); toInject.add(new VarInsnNode(ILOAD, 14)); toInject.add(new InsnNode(ICONST_3)); toInject.add(new JumpInsnNode(IF_ICMPGE, l5)); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new InsnNode(ICONST_3)); toInject.add(new InsnNode(IMUL)); toInject.add(new LdcInsnNode(new Integer(1013904223))); toInject.add(new InsnNode(IADD)); toInject.add(new FieldInsnNode(PUTSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new InsnNode(ICONST_2)); toInject.add(new InsnNode(ISHR)); toInject.add(new VarInsnNode(ISTORE, 11)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 15)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 8)); toInject.add(new InsnNode(ISHR)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 16)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(ISHR)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 17)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "a", "(III)I")); toInject.add(new VarInsnNode(ISTORE, 18)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "b", "(III)I")); toInject.add(new VarInsnNode(ISTORE, 19)); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "blockSet", "[[Lblockphysics/BlockDef;")); toInject.add(new VarInsnNode(ILOAD, 18)); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ILOAD, 19)); toInject.add(new InsnNode(AALOAD)); toInject.add(new FieldInsnNode(GETFIELD, "blockphysics/BlockDef", "randomtick", "Z")); LabelNode l7 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l7)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 6)); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "d", "()I")); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new VarInsnNode(ILOAD, 7)); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 18)); toInject.add(new VarInsnNode(ILOAD, 19)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "tryToMove", "(Labv;IIIIIZ)Z")); toInject.add(new InsnNode(POP)); toInject.add(l7); toInject.add(new FrameNode(Opcodes.F_FULL, 14, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "[Ladr;", "adr", Opcodes.INTEGER }, 0, new Object[] {})); toInject.add(new IincInsnNode(14, 1)); toInject.add(new JumpInsnNode(GOTO, l6)); toInject.add(l5); toInject.add(new FrameNode(Opcodes.F_FULL, 12, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" }, 0, new Object[] {})); toInject.add(new IincInsnNode(10, 1)); toInject.add(new JumpInsnNode(GOTO, l3)); toInject.add(l4); toInject.add(new FrameNode(Opcodes.F_FULL, 2, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator" }, 0, new Object[] {})); toInject.add(new JumpInsnNode(GOTO, l1)); toInject.add(l2); toInject.add(new FrameNode(Opcodes.F_CHOP, 1, null, 0, null)); toInject.add(new InsnNode(RETURN)); m.instructions.add(toInject); ok = true; break; } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformBlockWeb(byte[] bytes) { /*try//from w w w . jav a 2 s . c o m { FileOutputStream fos = new FileOutputStream("d:/BlockWeb.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching BlockWeb.class ................"); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("a") && m.desc.equals("(Labv;IIILnm;)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new VarInsnNode(ILOAD, 2)); toInject.add(new VarInsnNode(ILOAD, 3)); toInject.add(new VarInsnNode(ILOAD, 4)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "arm", "cF", "I")); toInject.add(new VarInsnNode(ALOAD, 5)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "onEntityCollidedWithBlock", "(Labv;IIIILnm;)V")); toInject.add(new InsnNode(RETURN)); m.instructions.clear(); m.localVariables.clear(); m.instructions.add(toInject); ok = true; break; } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/BlockWeb.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformWorld(byte[] bytes) { /*try//from w ww .j a v a 2s . c o m { FileOutputStream fos = new FileOutputStream("d:/World.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching World.class ..................."); boolean ok = false, ok2 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("<init>")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new TypeInsnNode(NEW, "blockphysics/BTickList")); toInject.add(new InsnNode(DUP)); toInject.add(new MethodInsnNode(INVOKESPECIAL, "blockphysics/BTickList", "<init>", "()V")); toInject.add( new FieldInsnNode(PUTFIELD, "abv", "moveTickList", "Lblockphysics/BTickList;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new TypeInsnNode(NEW, "java/util/HashSet")); toInject.add(new InsnNode(DUP)); toInject.add(new MethodInsnNode(INVOKESPECIAL, "java/util/HashSet", "<init>", "()V")); toInject.add(new FieldInsnNode(PUTFIELD, "abv", "pistonMoveBlocks", "Ljava/util/HashSet;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new TypeInsnNode(NEW, "blockphysics/ExplosionQueue")); toInject.add(new InsnNode(DUP)); toInject.add( new MethodInsnNode(INVOKESPECIAL, "blockphysics/ExplosionQueue", "<init>", "()V")); toInject.add(new FieldInsnNode(PUTFIELD, "abv", "explosionQueue", "Lblockphysics/ExplosionQueue;")); m.instructions.insertBefore(m.instructions.get(index), toInject); ok = true; } } } else if (m.name.equals("a") && m.desc.equals("(Lnm;DDDFZZ)Labq;")) ; { for (int index = m.instructions.size() - 1; index > 0; index--) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abq") && ((MethodInsnNode) m.instructions.get(index)).name.equals("a") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Z)V")) { while (!(m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abq") && ((MethodInsnNode) m.instructions.get(index)).name.equals("a") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("()V"))) { m.instructions.remove(m.instructions.get(index)); index--; } m.instructions.remove(m.instructions.get(index - 1)); m.instructions.remove(m.instructions.get(index - 1)); InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "abv", "explosionQueue", "Lblockphysics/ExplosionQueue;")); toInject.add(new VarInsnNode(ALOAD, 11)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "blockphysics/ExplosionQueue", "add", "(Labq;)V")); m.instructions.insertBefore(m.instructions.get(index - 1), toInject); ok2 = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); FieldVisitor fv; fv = cw.visitField(ACC_PUBLIC, "moveTickList", "Lblockphysics/BTickList;", null, null); fv.visitEnd(); fv = cw.visitField(ACC_PUBLIC, "pistonMoveBlocks", "Ljava/util/HashSet;", "Ljava/util/HashSet<Ljava/lang/String;>;", null); fv.visitEnd(); fv = cw.visitField(ACC_PUBLIC, "explosionQueue", "Lblockphysics/ExplosionQueue;", null, null); fv.visitEnd(); cw.visitEnd(); if (ok && ok2) System.out.println("OK"); else System.out.println("Failed." + ok + ok2); /*try { FileOutputStream fos = new FileOutputStream("d:/World.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformWorldServer(byte[] bytes) { /*try/*from ww w. ja v a2s.co m*/ { FileOutputStream fos = new FileOutputStream("d:/WorldServer.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ boolean ok = false, ok2 = false; boolean bukkit = false; try { Class.forName("org.bukkit.Bukkit"); System.out.println("[BlockPhysics] Bukkit detected."); bukkit = true; ok2 = true; } catch (ClassNotFoundException e) { } System.out.print("[BlockPhysics] Patching WorldServer.class ............."); ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("b") && m.desc.equals("()V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "tickBlocksRandomMove", "(Ljr;)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jr", "moveTickList", "Lblockphysics/BTickList;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "blockphysics/BTickList", "tickMoveUpdates", "(Labv;)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jr", "pistonMoveBlocks", "Ljava/util/HashSet;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "java/util/HashSet", "clear", "()V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jr", "explosionQueue", "Lblockphysics/ExplosionQueue;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "blockphysics/ExplosionQueue", "doNextExplosion", "()V")); m.instructions.insertBefore(m.instructions.get(index), toInject); ok = true; break; } } } else if (!bukkit && m.name.equals("a") && m.desc.equals("(Lnm;DDDFZZ)Labq;")) ; { for (int index = m.instructions.size() - 1; index > 0; index--) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abq") && ((MethodInsnNode) m.instructions.get(index)).name.equals("a") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Z)V")) { while (!(m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abq") && ((MethodInsnNode) m.instructions.get(index)).name.equals("a") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("()V"))) { m.instructions.remove(m.instructions.get(index)); index--; } m.instructions.remove(m.instructions.get(index - 1)); m.instructions.remove(m.instructions.get(index - 1)); InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jr", "explosionQueue", "Lblockphysics/ExplosionQueue;")); toInject.add(new VarInsnNode(ALOAD, 11)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "blockphysics/ExplosionQueue", "add", "(Labq;)V")); m.instructions.insertBefore(m.instructions.get(index - 1), toInject); ok2 = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok && ok2) System.out.println("OK"); else System.out.println("Failed." + ok + ok2); /*try { FileOutputStream fos = new FileOutputStream("d:/WorldServer.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformExplosion(byte[] bytes) { /*try/*from w w w .ja v a 2 s .co m*/ { FileOutputStream fos = new FileOutputStream("d:/Explosion.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching Explosion.class ..............."); boolean ok = false, ok2 = false, ok3 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if ((m.name.equals("<init>") && m.desc.equals("(Labv;Lnm;DDDF)V"))) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new FieldInsnNode(PUTFIELD, "abq", "impact", "Z")); for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { m.instructions.insertBefore(m.instructions.get(index), toInject); ok = true; break; } } } else if ((m.name.equals("a") && m.desc.equals("()V"))) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "abq", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "doExplosionA", "(Labv;Labq;)V")); toInject.add(new InsnNode(RETURN)); m.instructions.clear(); m.localVariables.clear(); m.instructions.add(toInject); ok2 = true; } else if (m.name.equals("a") && m.desc.equals("(Z)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "abq", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ILOAD, 1)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "doExplosionB", "(Labv;Labq;Z)V")); toInject.add(new InsnNode(RETURN)); m.instructions.clear(); m.localVariables.clear(); m.instructions.add(toInject); ok3 = true; } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); FieldVisitor fv; fv = cw.visitField(ACC_PUBLIC, "impact", "Z", null, null); fv.visitEnd(); cw.visitEnd(); if (ok && ok2 && ok3) System.out.println("OK"); else System.out.println("Failed." + ok + ok2 + ok3); /*try { FileOutputStream fos = new FileOutputStream("d:/Explosion.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformMinecraftServer(byte[] bytes) { /*try//from www . j ava2s . c o m { FileOutputStream fos = new FileOutputStream("d:/MinecraftServer.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ boolean bukkit = false; try { Class.forName("org.bukkit.Bukkit"); System.out.println("[BlockPhysics] Bukkit detected."); bukkit = true; } catch (ClassNotFoundException e) { } System.out.print("[BlockPhysics] Patching MinecraftServer.class ........."); boolean ok = false; boolean ok2 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("run") && m.desc.equals("()V")) { if (bukkit) { int index; for (index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && m.instructions.get(index).getOpcode() == INVOKESTATIC && ((MethodInsnNode) m.instructions.get(index)).owner.equals("java/lang/System") && ((MethodInsnNode) m.instructions.get(index)).name.equals("nanoTime")) { ok = true; break; } } if (ok) { while (index < m.instructions.size()) { if (m.instructions.get(index).getOpcode() == LSUB) { InsnList toInject = new InsnList(); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "setSkipMoveM", "(J)J")); m.instructions.insert(m.instructions.get(index), toInject); ok2 = true; break; } index++; } } } else { int index; for (index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && ((MethodInsnNode) m.instructions.get(index)).owner .equals("net/minecraft/server/MinecraftServer") && ((MethodInsnNode) m.instructions.get(index)).name.equals("s")) { ok = true; break; } } if (ok) { while (index > 0) { if (m.instructions.get(index).getOpcode() == LLOAD && m.instructions.get(index).getType() == AbstractInsnNode.VAR_INSN && ((VarInsnNode) m.instructions.get(index)).var == 3) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(LLOAD, 7)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "setSkipMove", "(J)V")); m.instructions.insertBefore(m.instructions.get(index), toInject); ok2 = true; break; } index--; } } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok && ok2) System.out.println("OK"); else System.out.println("Failed." + ok + ok2); /*try { FileOutputStream fos = new FileOutputStream("d:/MinecraftServer.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformEntityTrackerEntry(byte[] bytes) { /*try/* w w w. jav a 2 s .com*/ { FileOutputStream fos = new FileOutputStream("d:/EntityTrackerEntry.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching EntityTrackerEntry.class ......"); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("c") && m.desc.equals("()Lex;")) { for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getType() == AbstractInsnNode.TYPE_INSN && m.instructions.get(index).getOpcode() == INSTANCEOF && ((TypeInsnNode) m.instructions.get(index)).desc.equals("sq")) { while (m.instructions.get(index).getOpcode() != IFEQ) { index++; } index++; while (m.instructions.get(index).getOpcode() != ARETURN) { m.instructions.remove(m.instructions.get(index)); } InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jw", "a", "Lnm;")); toInject.add(new TypeInsnNode(CHECKCAST, "sq")); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "spawnFallingSandPacket", "(Lsq;)Ldc;")); m.instructions.insertBefore(m.instructions.get(index), toInject); ok = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/EntityTrackerEntry.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformEntityTNTPrimed(byte[] bytes) { /*try/*ww w .ja va 2 s .c o m*/ { FileOutputStream fos = new FileOutputStream("d:/EntityTNTPrimed.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ boolean bukkit = false; try { Class.forName("org.bukkit.Bukkit"); System.out.println("[BlockPhysics] Bukkit detected."); bukkit = true; } catch (ClassNotFoundException e) { } System.out.print("[BlockPhysics] Patching EntityTNTPrimed.class ........."); boolean ok = false, ok2 = false, ok5 = false, ok6 = false, ok7 = false, ok8 = false, ok9 = false, ok10 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); classNode.superName = "sq"; MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("<init>") && m.desc.equals("(Labv;)V")) { for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKESPECIAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("nm") && ((MethodInsnNode) m.instructions.get(index)).name.equals("<init>") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Labv;)V")) { m.instructions.set(m.instructions.get(index), new MethodInsnNode(INVOKESPECIAL, "sq", "<init>", "(Labv;)V")); ok = true; break; } } } else if (m.name.equals("<init>") && m.desc.equals("(Labv;DDDLoe;)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new VarInsnNode(DLOAD, 2)); toInject.add(new VarInsnNode(DLOAD, 4)); toInject.add(new VarInsnNode(DLOAD, 6)); toInject.add(new IntInsnNode(BIPUSH, 46)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new MethodInsnNode(INVOKESPECIAL, "sq", "<init>", "(Labv;DDDII)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new IntInsnNode(BIPUSH, 80)); toInject.add(new FieldInsnNode(PUTFIELD, "tb", "a", "I")); if (bukkit) { toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new LdcInsnNode(new Float("4.0"))); toInject.add(new FieldInsnNode(PUTFIELD, "tb", "yield", "F")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new FieldInsnNode(PUTFIELD, "tb", "isIncendiary", "Z")); } toInject.add(new InsnNode(RETURN)); m.instructions.clear(); m.localVariables.clear(); m.instructions.add(toInject); ok2 = true; } else if (m.name.equals("K") && m.desc.equals("()Z")) { InsnList toInject = new InsnList(); toInject.add(new InsnNode(ICONST_0)); toInject.add(new InsnNode(IRETURN)); m.instructions.clear(); m.localVariables.clear(); m.instructions.add(toInject); ok5 = true; } else if (m.name.equals("l_") && m.desc.equals("()V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "tb", "q", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "fallingSandUpdate", "(Labv;Lsq;)V")); toInject.add(new InsnNode(RETURN)); m.instructions.clear(); m.localVariables.clear(); m.instructions.add(toInject); ok6 = true; } else if (m.name.equals("b") && m.desc.equals("(Lbx;)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKESPECIAL, "sq", "b", "(Lbx;)V")); for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { m.instructions.insertBefore(m.instructions.get(index), toInject); ok7 = true; break; } } } else if (m.name.equals("a") && m.desc.equals("(Lbx;)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKESPECIAL, "sq", "a", "(Lbx;)V")); for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { m.instructions.insertBefore(m.instructions.get(index), toInject); ok8 = true; break; } } } else if (m.name.equals("d") && m.desc.equals("()V")) { m.access = ACC_PUBLIC; ok9 = true; if (bukkit) { for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKESTATIC && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.contains("entity/CraftEntity") && ((MethodInsnNode) m.instructions.get(index)).name.equals("getEntity")) { String pclass = ((MethodInsnNode) m.instructions.get(index)).owner .replace("entity/CraftEntity", ""); m.instructions.set(m.instructions.get(index), new MethodInsnNode(INVOKESPECIAL, pclass + "entity/CraftTNTPrimed", "<init>", "(L" + pclass + "CraftServer;Ltb;)V")); InsnList toInject = new InsnList(); toInject.add(new TypeInsnNode(NEW, pclass + "entity/CraftTNTPrimed")); toInject.add(new InsnNode(DUP)); m.instructions.insert(m.instructions.get(index - 3), toInject); ok10 = true; break; } } } else { for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == ACONST_NULL) { m.instructions.set(m.instructions.get(index), new VarInsnNode(ALOAD, 0)); ok10 = true; break; } } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok && ok2 && ok5 && ok6 && ok7 && ok8 && ok9) System.out.println("OK"); else System.out.println("Failed." + ok + ok2 + ok5 + ok6 + ok7 + ok8 + ok9); /*try { FileOutputStream fos = new FileOutputStream("d:/EntityTNTPrimed.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }