예제 #1
0
 @Override
 public void detectLanguageAndEncoding(Book book) throws BookReadingException {
   InputStream stream = null;
   try {
     stream = book.File.getInputStream();
     final PdbHeader header = new PdbHeader(stream);
     PdbUtil.skip(stream, header.Offsets[0] + 16 - header.length());
     if (PdbUtil.readInt(stream) != 0x4D4F4249) /* "MOBI" */ {
       throw new BookReadingException("unsupportedFileFormat", book.File);
     }
     final int length = (int) PdbUtil.readInt(stream);
     PdbUtil.skip(stream, 4);
     final int encodingCode = (int) PdbUtil.readInt(stream);
     final Encoding encoding = supportedEncodings().getEncoding(encodingCode);
     final String encodingName = encoding != null ? encoding.Name : "utf-8";
     book.setEncoding(encodingName);
     PdbUtil.skip(stream, 52);
     final int fullNameOffset = (int) PdbUtil.readInt(stream);
     final int fullNameLength = (int) PdbUtil.readInt(stream);
     final int languageCode = (int) PdbUtil.readInt(stream);
     book.setLanguage(
         ZLLanguageUtil.languageByIntCode(languageCode & 0xFF, (languageCode >> 8) & 0xFF));
   } catch (IOException e) {
     throw new BookReadingException(e, book.File);
   } finally {
     if (stream != null) {
       try {
         stream.close();
       } catch (IOException e) {
       }
     }
   }
 }
예제 #2
0
 @Override
 public void readMetaInfo(Book book) throws BookReadingException {
   InputStream stream = null;
   try {
     stream = book.File.getInputStream();
     final PdbHeader header = new PdbHeader(stream);
     PdbUtil.skip(stream, header.Offsets[0] + 16 - header.length());
     if (PdbUtil.readInt(stream) != 0x4D4F4249) /* "MOBI" */ {
       throw new BookReadingException("unsupportedFileFormat", book.File);
     }
     final int length = (int) PdbUtil.readInt(stream);
     PdbUtil.skip(stream, 4);
     final int encodingCode = (int) PdbUtil.readInt(stream);
     final Encoding encoding = supportedEncodings().getEncoding(encodingCode);
     final String encodingName = encoding != null ? encoding.Name : "utf-8";
     book.setEncoding(encodingName);
     PdbUtil.skip(stream, 52);
     final int fullNameOffset = (int) PdbUtil.readInt(stream);
     final int fullNameLength = (int) PdbUtil.readInt(stream);
     final int languageCode = (int) PdbUtil.readInt(stream);
     book.setLanguage(
         ZLLanguageUtil.languageByIntCode(languageCode & 0xFF, (languageCode >> 8) & 0xFF));
     PdbUtil.skip(stream, 32);
     int offset = 132;
     if ((PdbUtil.readInt(stream) & 0x40) != 0) {
       PdbUtil.skip(stream, length - 116);
       offset = length + 20;
       if (PdbUtil.readInt(stream) == 0x45585448) /* "EXTH" */ {
         PdbUtil.skip(stream, 4);
         final int recordsNumber = (int) PdbUtil.readInt(stream);
         offset += 8;
         for (int i = 0; i < recordsNumber; ++i) {
           final int type = (int) PdbUtil.readInt(stream);
           final int size = (int) PdbUtil.readInt(stream);
           offset += size;
           if (size <= 8) {
             continue;
           }
           switch (type) {
             default:
               PdbUtil.skip(stream, size - 8);
               break;
             case 100:
               {
                 final byte[] buffer = new byte[size - 8];
                 stream.read(buffer);
                 String author = new String(buffer, encodingName);
                 final int index = author.indexOf(',');
                 if (index != -1) {
                   author =
                       author.substring(index + 1).trim()
                           + ' '
                           + author.substring(0, index).trim();
                 } else {
                   author = author.trim();
                 }
                 book.addAuthor(author);
                 break;
               }
             case 105:
               {
                 final byte[] buffer = new byte[size - 8];
                 stream.read(buffer);
                 book.addTag(new String(buffer, encodingName));
                 break;
               }
           }
         }
       }
     }
     PdbUtil.skip(stream, fullNameOffset - offset);
     final byte[] titleBuffer = new byte[fullNameLength];
     stream.read(titleBuffer);
     book.setTitle(new String(titleBuffer, encodingName));
   } catch (IOException e) {
     throw new BookReadingException(e, book.File);
   } finally {
     if (stream != null) {
       try {
         stream.close();
       } catch (IOException e) {
       }
     }
   }
 }
예제 #3
0
  private ZLSingleImage readCoverInternal(ZLFile file) {
    InputStream stream = null;
    try {
      stream = file.getInputStream();
      final PdbHeader header = new PdbHeader(stream);
      PdbUtil.skip(stream, header.Offsets[0] + 16 - header.length());
      if (PdbUtil.readInt(stream) != 0x4D4F4249) /* "MOBI" */ {
        return null;
      }
      final int length = (int) PdbUtil.readInt(stream);
      PdbUtil.skip(stream, 104);

      final int exthFlags = (int) PdbUtil.readInt(stream);
      int coverIndex = -1;
      int thumbIndex = -1;

      int offset = 132;
      if ((exthFlags & 0x40) != 0) {
        PdbUtil.skip(stream, length - 116);
        offset = length + 20;
        if (PdbUtil.readInt(stream) != 0x45585448) /* "EXTH" */ {
          return null;
        }
        PdbUtil.skip(stream, 4);
        final int recordsNumber = (int) PdbUtil.readInt(stream);
        offset += 8;
        for (int i = 0; i < recordsNumber; ++i) {
          final int type = (int) PdbUtil.readInt(stream);
          final int size = (int) PdbUtil.readInt(stream);
          offset += size;
          if (size <= 8) {
            continue;
          }
          switch (type) {
            default:
              PdbUtil.skip(stream, size - 8);
              break;
            case 201:
              {
                if (size == 12) {
                  coverIndex = (int) PdbUtil.readInt(stream);
                } else {
                  PdbUtil.skip(stream, size - 8);
                }
                break;
              }
            case 202:
              {
                if (size == 12) {
                  thumbIndex = (int) PdbUtil.readInt(stream);
                } else {
                  PdbUtil.skip(stream, size - 8);
                }
                break;
              }
          }
        }
      }
      final InputStream tempStream = stream;
      stream = null;
      tempStream.close();

      if (coverIndex == -1) {
        if (thumbIndex == -1) {
          return null;
        }
        coverIndex = thumbIndex;
      }

      MobipocketStream myMobipocketStream = new MobipocketStream(file);
      int start = myMobipocketStream.getImageOffset(coverIndex);
      if (start >= 0) {
        int len = myMobipocketStream.getImageLength(coverIndex);
        if (len > 0) {
          return new ZLFileImage(MimeType.IMAGE_AUTO, file, start, len);
        }
      }
      return null;
    } catch (IOException e) {
      return null;
    } finally {
      if (stream != null) {
        try {
          stream.close();
        } catch (IOException e) {
        }
      }
    }
  }