content: /**
   *  Copyright (C) 2018 Ryszard Wiśniewski <brut.alll@gmail.com>
   *  Copyright (C) 2018 Connor Tumbleson <connor.tumbleson@gmail.com>
   *
   *  Licensed under the Apache License, Version 2.0 (the "License");
   *  you may not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   *
   *       http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  package brut.androlib.src;
  
  import brut.androlib.AndrolibException;
  import org.jf.baksmali.Baksmali;
  import org.jf.baksmali.BaksmaliOptions;
  import org.jf.dexlib2.DexFileFactory;
  import org.jf.dexlib2.Opcodes;
  import org.jf.dexlib2.dexbacked.DexBackedDexFile;
  import org.jf.dexlib2.dexbacked.DexBackedOdexFile;
  import org.jf.dexlib2.analysis.InlineMethodResolver;
  
  import java.io.File;
  import java.io.IOException;
  
  /**
   * @author Ryszard Wiśniewski <brut.alll@gmail.com>
   */
  public class SmaliDecoder {
  
      public static void decode(File apkFile, File outDir, String dexName, boolean bakdeb, int api)
              throws AndrolibException {
          new SmaliDecoder(apkFile, outDir, dexName, bakdeb, api).decode();
      }
  
      private SmaliDecoder(File apkFile, File outDir, String dexName, boolean bakdeb, int api) {
          mApkFile = apkFile;
          mOutDir  = outDir;
          mDexFile = dexName;
          mBakDeb  = bakdeb;
          mApi     = api;
      }
  
      private void decode() throws AndrolibException {
          try {
              final BaksmaliOptions options = new BaksmaliOptions();
  
              // options
              options.deodex = false;
              options.implicitReferences = false;
              options.parameterRegisters = true;
              options.localsDirective = true;
              options.sequentialLabels = true;
              options.debugInfo = mBakDeb;
              options.codeOffsets = false;
              options.accessorComments = false;
              options.registerInfo = 0;
              options.inlineResolver = null;
  
              // set jobs automatically
              int jobs = Runtime.getRuntime().availableProcessors();
              if (jobs > 6) {
                  jobs = 6;
              }
  
              // create the dex
              DexBackedDexFile dexFile = DexFileFactory.loadDexEntry(mApkFile, mDexFile, true, Opcodes.forApi(mApi));
  
              if (dexFile.isOdexFile()) {
                  throw new AndrolibException("Warning: You are disassembling an odex file without deodexing it.");
              }
  
              if (dexFile instanceof DexBackedOdexFile) {
                  options.inlineResolver =
                          InlineMethodResolver.createInlineMethodResolver(((DexBackedOdexFile)dexFile).getOdexVersion());
              }
  
              Baksmali.disassembleDexFile(dexFile, mOutDir, jobs, options);
          } catch (IOException ex) {
              throw new AndrolibException(ex);
          }
      }
  
      private final File mApkFile;
      private final File mOutDir;
      private final String mDexFile;
      private final boolean mBakDeb;
      private final int mApi;
  }
  