fbreader/src/formats/pdb/PdbPlugin.cpp

   1 /*
   2  * Copyright (C) 2004-2008 Geometer Plus <contact@geometerplus.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  */
  19
  20 #include <ZLFile.h>
  21 #include <ZLInputStream.h>
  22 #include <ZLOptions.h>
  23 #include <ZLUnicodeUtil.h>
  24
  25 #include "PdbPlugin.h"
  26 #include "../../description/BookDescriptionUtil.h"
  27 #include "../../options/FBOptions.h"
  28
  29 PdbPlugin::~PdbPlugin() {
  30 }
  31
  32 std::string PdbPlugin::fileType(const ZLFile &file) const {
  33         const std::string extension = ZLUnicodeUtil::toLower(file.extension());
  34         if ((extension != "prc") && (extension != "pdb") && (extension != "mobi")) {
  35                 return "";
  36         }
  37
  38         std::string fileName = file.path();
  39         int index = fileName.find(':');
  40         ZLFile baseFile = (index == -1) ? file : ZLFile(fileName.substr(0, index));
  41         bool upToDate = BookDescriptionUtil::checkInfo(baseFile);
  42
  43         ZLStringOption palmTypeOption(FBCategoryKey::BOOKS, file.path(), "PalmType", "");
  44         std::string palmType = palmTypeOption.value();
  45         if ((palmType.length() != 8) || !upToDate) {
  46                 shared_ptr<ZLInputStream> stream = file.inputStream();
  47                 if (stream.isNull() || !stream->open()) {
  48                         return "";
  49                 }
  50                 stream->seek(60, false);
  51                 char id[8];
  52                 stream->read(id, 8);
  53                 stream->close();
  54                 palmType = std::string(id, 8);
  55                 if (!upToDate) {
  56                         BookDescriptionUtil::saveInfo(baseFile);
  57                 }
  58                 palmTypeOption.setValue(palmType);
  59         }
  60         return palmType;
  61 }