Examples with IrMethod com.googlecode.dex2jar.ir.IrMethod used on opensource projects

Example 1 with IrMethod

use of com.googlecode.dex2jar.ir.IrMethod in project dex2jar by pxb1988.

the class ArrayElementTransformer method main.

public static void main(String... args) {
    IrMethod m = new IrMethod();
    m.isStatic = true;
    m.name = "a";
    m.args = new String[0];
    m.ret = "[Ljava/lang/String;";
    m.owner = "La;";
    Local array = Exprs.nLocal(1);
    m.locals.add(array);
    m.stmts.add(Stmts.nAssign(array, Exprs.nNewArray("Ljava/lang/String;", Exprs.nInt(2))));
    m.stmts.add(Stmts.nAssign(Exprs.nArray(array, Exprs.nInt(1), "Ljava/lang/String;"), Exprs.nString("123")));
    m.stmts.add(Stmts.nAssign(Exprs.nArray(array, Exprs.nInt(0), "Ljava/lang/String;"), Exprs.nString("456")));
    m.stmts.add(Stmts.nReturn(array));
    new ArrayElementTransformer().transform(m);
}

Example 2 with IrMethod

use of com.googlecode.dex2jar.ir.IrMethod in project dex2jar by pxb1988.

the class FillArrayTransformer method main.

public static void main(String... args) {
    IrMethod m = new IrMethod();
    m.isStatic = true;
    m.name = "a";
    m.args = new String[0];
    m.ret = "[Ljava/lang/String;";
    m.owner = "La;";
    Local array = Exprs.nLocal(1);
    m.locals.add(array);
    m.stmts.add(Stmts.nAssign(array, Exprs.nNewArray("Ljava/lang/String;", Exprs.nInt(2))));
    m.stmts.add(Stmts.nAssign(Exprs.nArray(array, Exprs.nInt(1), "Ljava/lang/String;"), Exprs.nString("123")));
    m.stmts.add(Stmts.nAssign(Exprs.nArray(array, Exprs.nInt(0), "Ljava/lang/String;"), Exprs.nString("456")));
    m.stmts.add(Stmts.nReturn(array));
    new FillArrayTransformer().transform(m);
    System.out.println(m);
}

Example 3 with IrMethod

use of com.googlecode.dex2jar.ir.IrMethod in project dex2jar by pxb1988.

the class ConstTransformerTest method test04.

@Test
public void test04() {
    IrMethod jm = new IrMethod();
    Local a = nLocal("a");
    Local b = nLocal("b");
    Local p = nLocal("p");
    jm.locals.add(a);
    jm.locals.add(b);
    jm.locals.add(p);
    jm.stmts.add(nAssign(a, nString(new String("a String"))));
    jm.stmts.add(nAssign(b, nString(new String("a String"))));
    jm.stmts.add(nAssign(p, Exprs.nPhi(a, b)));
    UnopStmt retStmt = nReturn(p);
    jm.stmts.add(retStmt);
    new ConstTransformer().transform(jm);
    Assert.assertTrue(jm.locals.size() == 3);
    Assert.assertTrue(jm.stmts.getSize() == 4);
    Assert.assertEquals(VT.CONSTANT, retStmt.op.vt);
}

Example 4 with IrMethod

use of com.googlecode.dex2jar.ir.IrMethod in project dex2jar by pxb1988.

the class DecryptStringCmd method decryptByIr.

private boolean decryptByIr(ClassNode cn, Map<MethodConfig, MethodConfig> map) {
    MethodConfig key = this.key;
    boolean changed = false;
    for (Iterator<MethodNode> it = cn.methods.iterator(); it.hasNext(); ) {
        MethodNode m = it.next();
        if (m.instructions == null) {
            continue;
        }
        key.owner = cn.name;
        key.name = m.name;
        key.desc = m.desc;
        if (map.containsKey(key)) {
            if (deleteMethod) {
                it.remove();
            }
            continue;
        }
        if (false && verbose) {
            System.out.println();
            System.out.println("===============");
            System.out.println("on method " + cn.name + ";->" + m.name + m.desc);
        }
        boolean find = false;
        // search for the decrypt method
        for (AbstractInsnNode p = m.instructions.getFirst(); p != null; p = p.getNext()) {
            if (p.getOpcode() == Opcodes.INVOKESTATIC) {
                MethodInsnNode mn = (MethodInsnNode) p;
                key.owner = mn.owner;
                key.name = mn.name;
                key.desc = mn.desc;
                MethodConfig config = map.get(key);
                if (config != null) {
                    find = true;
                }
            }
        }
        if (find) {
            try {
                // copy m to m2 for cleanup debug info
                MethodNode m2 = new MethodNode();
                m2.tryCatchBlocks = new ArrayList<>();
                m2.name = m.name;
                m2.access = m.access;
                m2.desc = m.desc;
                m.accept(m2);
                cleanDebug(m2);
                // convert m2 to ir
                IrMethod irMethod = J2IRConverter.convert(cn.name, m2);
                // opt and decrypt
                optAndDecrypt(irMethod, map);
                // convert ir to m3
                MethodNode m3 = new MethodNode();
                m3.tryCatchBlocks = new ArrayList<>();
                new IR2JConverter(true).convert(irMethod, m3);
                // copy back m3 to m
                m.maxLocals = -1;
                m.maxLocals = -1;
                m.instructions = m3.instructions;
                m.tryCatchBlocks = m3.tryCatchBlocks;
                m.localVariables = null;
                changed = true;
            } catch (Exception ex) {
                if (verbose) {
                    ex.printStackTrace();
                }
            }
        }
    }
    return changed;
}

Example 5 with IrMethod

use of com.googlecode.dex2jar.ir.IrMethod in project dex2jar by pxb1988.

the class ConstTransformerTest method test00.

@Test
public void test00() {
    IrMethod jm = new IrMethod();
    Local a = nLocal("a");
    jm.locals.add(a);
    jm.stmts.add(nAssign(a, nString("a String")));
    UnopStmt retStmt = nReturn(a);
    jm.stmts.add(retStmt);
    new ConstTransformer().transform(jm);
    Assert.assertTrue(jm.locals.size() == 1);
    Assert.assertTrue(jm.stmts.getSize() == 2);
    Assert.assertEquals("a String", ((Constant) retStmt.op.trim()).value);
}