package edu.jiangxin.apktoolbox.file.password.recovery.checker;
   
   import org.apache.commons.io.FilenameUtils;
   import org.apache.poi.EncryptedDocumentException;
   import org.apache.poi.POIDocument;
   import org.apache.poi.hslf.usermodel.HSLFSlideShow;
   import org.apache.poi.hssf.record.crypto.Biff8EncryptionKey;
   import org.apache.poi.hssf.usermodel.HSSFWorkbook;
   import org.apache.poi.hwpf.HWPFDocument;
  import org.apache.poi.poifs.filesystem.POIFSFileSystem;
  
  import java.io.*;
  
  public class BinaryOfficeChecker extends FileChecker {
      private static final boolean DEBUG = true;
  
      public BinaryOfficeChecker() {
          super();
      }
  
      @Override
      public String[] getFileExtensions() {
          return new String[]{"doc", "ppt", "xls"};
      }
  
      @Override
      public String getFileDescription() {
          return "*.doc;*.ppt;*.xls";
      }
  
      @Override
      public String getDescription() {
          return "Office File Checker(Binary formats)";
      }
  
      @Override
      public boolean prepareChecker() {
          return true;
      }
  
      @Override
      public boolean checkPassword(String password) {
          if (DEBUG) {
              logger.info("checkPassword: " + password);
          }
  
          boolean result = false;
          Biff8EncryptionKey.setCurrentUserPassword(password);
          try (FileInputStream fis = new FileInputStream(file);
               POIFSFileSystem pfs = new POIFSFileSystem(fis)) {
              String extension = FilenameUtils.getExtension(file.getName());
              switch (extension) {
                  case "xls" -> {
                      try (POIDocument poiDocument = new HSSFWorkbook(pfs)) {
                          logger.info("create workbook successfully: {}", poiDocument);
                          result = true;
                      }
                  }
                  case "doc" -> {
                      try (POIDocument poiDocument = new HWPFDocument(pfs)) {
                          logger.info("create document successfully: {}", poiDocument);
                          result = true;
                      }
                  }
                  case "ppt" -> {
                      try (POIDocument poiDocument = new HSLFSlideShow(pfs)) {
                          logger.info("create slideShow successfully: {}", poiDocument);
                          result = true;
                      }
                  }
                  default -> logger.error("Not supported: {}", file.getName());
              }
          } catch (FileNotFoundException e) {
              logger.error("checkPassword FileNotFoundException");
          } catch (IOException e) {
              logger.error("checkPassword IOException");
          } catch (EncryptedDocumentException e) {
              logger.error("checkPassword EncryptedDocumentException");
          }
          return result;
      }
  }