boomshakalaka (plane) writeup

a.java

package com.example.plane;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;

public class a
{
  private SharedPreferences editor = null;

  public a(Context paramContext, String paramString)
  {
    this.editor = paramContext.getSharedPreferences(paramString, 0);
  }

  public void b()
  {
    this.editor.edit().putString("DATA", "").commit();
  }

  public String c()
  {
    return this.editor.getString("DATA", "");
  }

  public void d(String paramString)
  {
    this.editor.edit().putString("DATA", String.valueOf(c()) + paramString).commit();
  }
}

a.smali

.class public Lcom/example/plane/a;
.super Ljava/lang/Object;
.source "a.java"


# instance fields
.field private editor:Landroid/content/SharedPreferences;


# direct methods
.method public constructor <init>(Landroid/content/Context;Ljava/lang/String;)V
    .locals 1
    .param p1, "arg1"    # Landroid/content/Context;
    .param p2, "arg2"    # Ljava/lang/String;

    .prologue
    .line 9
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 7
    const/4 v0, 0x0

    iput-object v0, p0, Lcom/example/plane/a;->editor:Landroid/content/SharedPreferences;

    .line 10
    const/4 v0, 0x0

    invoke-virtual {p1, p2, v0}, Landroid/content/Context;->getSharedPreferences(Ljava/lang/String;I)Landroid/content/SharedPreferences;

    move-result-object v0

    iput-object v0, p0, Lcom/example/plane/a;->editor:Landroid/content/SharedPreferences;

    .line 11
    return-void
.end method


# virtual methods
.method public b()V
    .locals 3

    .prologue
    .line 14
    iget-object v0, p0, Lcom/example/plane/a;->editor:Landroid/content/SharedPreferences;

    invoke-interface {v0}, Landroid/content/SharedPreferences;->edit()Landroid/content/SharedPreferences$Editor;

    move-result-object v0

    const-string v1, "DATA"

    const-string v2, ""

    invoke-interface {v0, v1, v2}, Landroid/content/SharedPreferences$Editor;->putString(Ljava/lang/String;Ljava/lang/String;)Landroid/content/SharedPreferences$Editor;

    move-result-object v0

    invoke-interface {v0}, Landroid/content/SharedPreferences$Editor;->commit()Z

    .line 15
    return-void
.end method

.method public c()Ljava/lang/String;
    .locals 3

    .prologue
    .line 18
    iget-object v0, p0, Lcom/example/plane/a;->editor:Landroid/content/SharedPreferences;

    const-string v1, "DATA"

    const-string v2, ""

    invoke-interface {v0, v1, v2}, Landroid/content/SharedPreferences;->getString(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method public d(Ljava/lang/String;)V
    .locals 4
    .param p1, "arg1"    # Ljava/lang/String;

    .prologue
    .line 22
    iget-object v0, p0, Lcom/example/plane/a;->editor:Landroid/content/SharedPreferences;

    invoke-interface {v0}, Landroid/content/SharedPreferences;->edit()Landroid/content/SharedPreferences$Editor;

    move-result-object v0

    const-string v1, "DATA"

    new-instance v2, Ljava/lang/StringBuilder;

    invoke-virtual {p0}, Lcom/example/plane/a;->c()Ljava/lang/String;

    move-result-object v3

    invoke-static {v3}, Ljava/lang/String;->valueOf(Ljava/lang/Object;)Ljava/lang/String;

    move-result-object v3

    invoke-static {v3}, Ljava/lang/String;->valueOf(Ljava/lang/Object;)Ljava/lang/String;

    move-result-object v3

    invoke-direct {v2, v3}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    invoke-virtual {v2, p1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

    invoke-virtual {v2}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v2

    invoke-interface {v0, v1, v2}, Landroid/content/SharedPreferences$Editor;->putString(Ljava/lang/String;Ljava/lang/String;)Landroid/content/SharedPreferences$Editor;

    move-result-object v0

    invoke-interface {v0}, Landroid/content/SharedPreferences$Editor;->commit()Z

    .line 23
    return-void
.end method

FirstTest.java

package com.example.plane;

import android.os.Bundle;
import org.cocos2dx.lib.Cocos2dxActivity;
import org.cocos2dx.lib.Cocos2dxGLSurfaceView;

public class FirstTest extends Cocos2dxActivity
{
  static
  {
    System.loadLibrary("cocos2dcpp");
  }

  protected void onCreate(Bundle paramBundle)
  {
    super.onCreate(paramBundle);
    new a(this, "flag").d("YmF6aW5nYWFhYQ==");
    new a(this, "Cocos2dxPrefsFile").d("N0");
  }

  public Cocos2dxGLSurfaceView onCreateView()
  {
    Cocos2dxGLSurfaceView localCocos2dxGLSurfaceView = new Cocos2dxGLSurfaceView(this);
    new a(this, "Cocos2dxPrefsFile").d("MG");
    localCocos2dxGLSurfaceView.setEGLConfigChooser(5, 6, 5, 0, 16, 8);
    return localCocos2dxGLSurfaceView;
  }
}

FirstTest.smali

.class public Lcom/example/plane/FirstTest;
.super Lorg/cocos2dx/lib/Cocos2dxActivity;
.source "FirstTest.java"


# direct methods
.method static constructor <clinit>()V
    .locals 1

    .prologue
    .line 54
    const-string v0, "cocos2dcpp"

    invoke-static {v0}, Ljava/lang/System;->loadLibrary(Ljava/lang/String;)V

    .line 55
    return-void
.end method

.method public constructor <init>()V
    .locals 0

    .prologue
    .line 31
    invoke-direct {p0}, Lorg/cocos2dx/lib/Cocos2dxActivity;-><init>()V

    return-void
.end method


# virtual methods
.method protected onCreate(Landroid/os/Bundle;)V
    .locals 4
    .param p1, "savedInstanceState"    # Landroid/os/Bundle;

    .prologue
    .line 34
    invoke-super {p0, p1}, Lorg/cocos2dx/lib/Cocos2dxActivity;->onCreate(Landroid/os/Bundle;)V

    .line 35
    const-string v0, "YmF6aW5nYWFhYQ=="

    .line 36
    .local v0, "flag":Ljava/lang/String;
    new-instance v1, Lcom/example/plane/a;

    const-string v3, "flag"

    invoke-direct {v1, p0, v3}, Lcom/example/plane/a;-><init>(Landroid/content/Context;Ljava/lang/String;)V

    .line 37
    .local v1, "haha":Lcom/example/plane/a;
    invoke-virtual {v1, v0}, Lcom/example/plane/a;->d(Ljava/lang/String;)V

    .line 38
    new-instance v2, Lcom/example/plane/a;

    const-string v3, "Cocos2dxPrefsFile"

    invoke-direct {v2, p0, v3}, Lcom/example/plane/a;-><init>(Landroid/content/Context;Ljava/lang/String;)V

    .line 39
    .local v2, "hehe":Lcom/example/plane/a;
    const-string v3, "N0"

    invoke-virtual {v2, v3}, Lcom/example/plane/a;->d(Ljava/lang/String;)V

    .line 40
    return-void
.end method

.method public onCreateView()Lorg/cocos2dx/lib/Cocos2dxGLSurfaceView;
    .locals 8

    .prologue
    const/4 v1, 0x5

    .line 43
    new-instance v0, Lorg/cocos2dx/lib/Cocos2dxGLSurfaceView;

    invoke-direct {v0, p0}, Lorg/cocos2dx/lib/Cocos2dxGLSurfaceView;-><init>(Landroid/content/Context;)V

    .line 46
    .local v0, "glSurfaceView":Lorg/cocos2dx/lib/Cocos2dxGLSurfaceView;
    new-instance v7, Lcom/example/plane/a;

    const-string v2, "Cocos2dxPrefsFile"

    invoke-direct {v7, p0, v2}, Lcom/example/plane/a;-><init>(Landroid/content/Context;Ljava/lang/String;)V

    .line 47
    .local v7, "hehe":Lcom/example/plane/a;
    const-string v2, "MG"

    invoke-virtual {v7, v2}, Lcom/example/plane/a;->d(Ljava/lang/String;)V

    .line 48
    const/4 v2, 0x6

    const/4 v4, 0x0

    const/16 v5, 0x10

    const/16 v6, 0x8

    move v3, v1

    invoke-virtual/range {v0 .. v6}, Lorg/cocos2dx/lib/Cocos2dxGLSurfaceView;->setEGLConfigChooser(IIIIII)V

    .line 50
    return-object v0
.end method