/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* libwpd
* Version: MPL 2.0 / LGPLv2.1+
*
* 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/.
*
* Major Contributor(s):
* Copyright (C) 2002 William Lachance (wrlach@gmail.com)
* Copyright (C) 2002-2004 Marc Maurer (uwog@uwog.net)
*
* For minor contributions see the git repository.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU Lesser General Public License Version 2.1 or later
* (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are
* applicable instead of those above.
*
* For further information visit http://libwpd.sourceforge.net
*/
/* "This product is not manufactured, approved, or supported by
* Corel Corporation or Corel Corporation Limited."
*/
#include "WPXHeader.h"
#include "WP3Header.h"
#include "WP5Header.h"
#include "WP6Header.h"
#include "WP60Header.h"
#include "WP61Header.h"
#include "WPXFileStructure.h"
#include "libwpd_internal.h"
#include <string.h>
WPXHeader::WPXHeader(librevenge::RVNGInputStream * /* input */, WPXEncryption * /* encryption */, unsigned documentOffset, unsigned char productType,
unsigned char fileType, unsigned char majorVersion, unsigned char minorVersion, unsigned short documentEncryption) :
m_documentOffset(documentOffset),
m_productType(productType),
m_fileType(fileType),
m_majorVersion(majorVersion),
m_minorVersion(minorVersion),
m_documentEncryption(documentEncryption)
{
}
WPXHeader::~WPXHeader()
{
}
WPXHeader *WPXHeader::constructHeader(librevenge::RVNGInputStream *input, WPXEncryption *encryption)
{
WPD_DEBUG_MSG(("WPXHeader::constructHeader()\n"));
char fileMagic[4] = { 0, 0, 0, 0 };
/* check the magic */
input->seek(WPX_HEADER_MAGIC_OFFSET, librevenge::RVNG_SEEK_SET);
for (int i=0; i<3 && !input->isEnd(); i++)
fileMagic[i] = (char)readU8(input, encryption);
if (strcmp(fileMagic, "WPC"))
{
WPD_DEBUG_MSG(("WordPerfect: File magic is not equal to \"WPC\"!\n"));
return nullptr;
}
/* get the document pointer */
input->seek(WPX_HEADER_DOCUMENT_POINTER_OFFSET, librevenge::RVNG_SEEK_SET);
unsigned documentOffset = readU32(input, encryption);
/* get information on product types, file types, versions */
input->seek(WPX_HEADER_PRODUCT_TYPE_OFFSET, librevenge::RVNG_SEEK_SET);
unsigned char productType = readU8(input, encryption);
unsigned char fileType = readU8(input, encryption);
unsigned char majorVersion = readU8(input, encryption);
unsigned char minorVersion = readU8(input, encryption);
input->seek(WPX_HEADER_ENCRYPTION_OFFSET, librevenge::RVNG_SEEK_SET);
unsigned short documentEncryption = readU16(input, encryption);
WPD_DEBUG_MSG(("WordPerfect: Document Offset = 0x%x \n",documentOffset));
WPD_DEBUG_MSG(("WordPerfect: Product Type: %i File Type: %i Major Version: %i Minor Version: %i\n",
productType, fileType,
majorVersion, minorVersion));
WPD_DEBUG_MSG(("WordPerfect: Document Encryption = 0x%x \n",(int)documentEncryption));
switch (fileType)
{
case 0x0a:
WPD_DEBUG_MSG(("WordPerfect: Supported file type: \"WordPerfect Document\"\n"));
switch (majorVersion)
{
case 0x00: // WP5
documentEncryption = (unsigned short)(((documentEncryption & 0xff00) >> 8) | ((documentEncryption & 0x00ff) << 8));
return new WP5Header(input, encryption, documentOffset, productType, fileType,
majorVersion, minorVersion, documentEncryption);
case 0x02: // WP6
switch (minorVersion)
{
case 0x00:
return new WP60Header(input, encryption, documentOffset, productType, fileType,
majorVersion, minorVersion, documentEncryption);
default: // assume this header can be parsed by a WP61 header parser
return new WP61Header(input, encryption, documentOffset, productType, fileType,
majorVersion, minorVersion, documentEncryption);
}
default:
// unhandled file format
WPD_DEBUG_MSG(("WordPerfect: Unsupported major number: %d\n", majorVersion));
return nullptr;
}
case 0x2c:
WPD_DEBUG_MSG(("WordPerfect: Supported file type: \"MAC WP 2.0 document\"\n"));
switch (majorVersion)
{
case 0x02: // WP Mac 2.x
case 0x03: // WP Mac 3.0-3.5
case 0x04: // WP Mac 3.5e
return new WP3Header(input, encryption, documentOffset, productType, fileType,
majorVersion, minorVersion, documentEncryption);
default:
// unhandled file format
WPD_DEBUG_MSG(("WordPerfect: Unsupported major number: %d\n", majorVersion));
return nullptr;
}
default:
WPD_DEBUG_MSG(("WordPerfect: Unsupported file type: %d\n", fileType));
return nullptr;
}
}
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