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/*
* Copyright (C) 2004-2012 Geometer Plus <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <ZLFile.h>
#include <ZLInputStream.h>
#include <ZLEncodingConverter.h>
#include <ZLUnicodeUtil.h>
#include <ZLLanguageUtil.h>
#include <ZLImage.h>
#include <ZLFileImage.h>
#include "PdbPlugin.h"
#include "PalmDocStream.h"
#include "MobipocketHtmlBookReader.h"
#include "../../library/Book.h"
bool MobipocketPlugin::acceptsFile(const ZLFile &file) const {
return PdbPlugin::fileType(file) == "BOOKMOBI";
}
void MobipocketPlugin::readDocumentInternal(const ZLFile &file, BookModel &model, const PlainTextFormat &format, const std::string &encoding, ZLInputStream &stream) const {
MobipocketHtmlBookReader(file, model, format, encoding).readDocument(stream);
}
bool MobipocketPlugin::readMetaInfo(Book &book) const {
shared_ptr<ZLInputStream> stream = book.file().inputStream();
if (stream.isNull() || ! stream->open()) {
return false;
}
PdbHeader header;
if (!header.read(stream)) {
return false;
}
stream->seek(header.Offsets[0] + 16, true);
char test[5];
test[4] = '\0';
stream->read(test, 4);
static const std::string MOBI = "MOBI";
if (MOBI != test) {
return PalmDocLikePlugin::readMetaInfo(book);
}
unsigned long length;
PdbUtil::readUnsignedLongBE(*stream, length);
stream->seek(4, false);
unsigned long encodingCode;
PdbUtil::readUnsignedLongBE(*stream, encodingCode);
if (book.encoding().empty()) {
ZLEncodingConverterInfoPtr info = ZLEncodingCollection::Instance().info(encodingCode);
if (!info.isNull()) {
book.setEncoding(info->name());
}
}
stream->seek(52, false);
unsigned long fullNameOffset;
PdbUtil::readUnsignedLongBE(*stream, fullNameOffset);
unsigned long fullNameLength;
PdbUtil::readUnsignedLongBE(*stream, fullNameLength);
unsigned long languageCode;
PdbUtil::readUnsignedLongBE(*stream, languageCode);
book.setLanguage(ZLLanguageUtil::languageByCode(languageCode & 0xFF, (languageCode >> 8) & 0xFF));
stream->seek(32, false);
unsigned long exthFlags;
PdbUtil::readUnsignedLongBE(*stream, exthFlags);
if (exthFlags & 0x40) {
stream->seek(header.Offsets[0] + 16 + length, true);
stream->read(test, 4);
static const std::string EXTH = "EXTH";
if (EXTH == test) {
stream->seek(4, false);
unsigned long recordsNum;
PdbUtil::readUnsignedLongBE(*stream, recordsNum);
for (unsigned long i = 0; i < recordsNum; ++i) {
unsigned long type;
PdbUtil::readUnsignedLongBE(*stream, type);
unsigned long size;
PdbUtil::readUnsignedLongBE(*stream, size);
if (size > 8) {
std::string value(size - 8, '\0');
stream->read((char*)value.data(), size - 8);
switch (type) {
case 100: // author
{
int index = value.find(',');
if (index != -1) {
std::string part0 = value.substr(0, index);
std::string part1 = value.substr(index + 1);
ZLUnicodeUtil::utf8Trim(part0);
ZLUnicodeUtil::utf8Trim(part1);
value = part1 + ' ' + part0;
} else {
ZLUnicodeUtil::utf8Trim(value);
}
book.addAuthor(value);
break;
}
case 105: // subject
book.addTag(value);
break;
}
}
}
}
}
stream->seek(header.Offsets[0] + fullNameOffset, true);
std::string title(fullNameLength, '\0');
stream->read((char*)title.data(), fullNameLength);
book.setTitle(title);
stream->close();
return PalmDocLikePlugin::readMetaInfo(book);
}
shared_ptr<const ZLImage> MobipocketPlugin::coverImage(const ZLFile &file) const {
shared_ptr<ZLInputStream> stream = file.inputStream();
if (stream.isNull() || ! stream->open()) {
return 0;
}
PdbHeader header;
if (!header.read(stream)) {
return 0;
}
stream->seek(header.Offsets[0] + 16, true);
char test[5];
test[4] = '\0';
stream->read(test, 4);
static const std::string MOBI = "MOBI";
if (MOBI != test) {
return 0;
}
unsigned long length;
PdbUtil::readUnsignedLongBE(*stream, length);
stream->seek(104, false);
unsigned long exthFlags;
unsigned long coverIndex = (unsigned long)-1;
unsigned long thumbIndex = (unsigned long)-1;
PdbUtil::readUnsignedLongBE(*stream, exthFlags);
if (exthFlags & 0x40) {
stream->seek(header.Offsets[0] + 16 + length, true);
stream->read(test, 4);
static const std::string EXTH = "EXTH";
if (EXTH != test) {
return 0;
}
stream->seek(4, false);
unsigned long recordsNum;
PdbUtil::readUnsignedLongBE(*stream, recordsNum);
for (unsigned long i = 0; i < recordsNum; ++i) {
unsigned long type;
PdbUtil::readUnsignedLongBE(*stream, type);
unsigned long size;
PdbUtil::readUnsignedLongBE(*stream, size);
switch (type) {
case 201: // coveroffset
if (size == 12) {
PdbUtil::readUnsignedLongBE(*stream, coverIndex);
} else {
stream->seek(size - 8, false);
}
break;
case 202: // thumboffset
if (size == 12) {
PdbUtil::readUnsignedLongBE(*stream, thumbIndex);
} else {
stream->seek(size - 8, false);
}
break;
default:
stream->seek(size - 8, false);
break;
}
}
}
stream->close();
if (coverIndex == (unsigned long)-1) {
if (thumbIndex == (unsigned long)-1) {
return 0;
}
coverIndex = thumbIndex;
}
PalmDocStream pbStream(file);
if (!pbStream.open()) {
return 0;
}
int index = pbStream.firstImageLocationIndex(file.path());
if (index >= 0) {
std::pair<int,int> imageLocation = pbStream.imageLocation(pbStream.header(), index + coverIndex);
if ((imageLocation.first > 0) && (imageLocation.second > 0)) {
return new ZLFileImage(
file,
imageLocation.first,
imageLocation.second
);
}
}
return 0;
}
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