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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef ArchiveReader_h__
#define ArchiveReader_h__

#include <stdio.h>
#include "mar.h"

#ifdef XP_WIN
  typedef WCHAR NS_tchar;
#else
  typedef char NS_tchar;
#endif

// This class provides an API to extract files from an update archive.
class ArchiveReader
{
public:
  ArchiveReader() : mArchive(nullptr) {}
  ~ArchiveReader() { Close(); }

  int Open(const NS_tchar *path);
  int VerifySignature();
  int VerifyProductInformation(const char *MARChannelID, 
                               const char *appVersion);
  void Close();

  int ExtractFile(const char *item, const NS_tchar *destination);
  int ExtractFileToStream(const char *item, FILE *fp);

private:
  int ExtractItemToStream(const MarItem *item, FILE *fp);

  MarFile *mArchive;
};

#endif  // ArchiveReader_h__