# -*- coding: utf-8 -*-
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
# Copyright (C) 2018-2022 OzzieIsaacs
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
import os
from . import logger, isoLanguages, cover
from .constants import BookMeta
try:
from wand.image import Image
use_IM = True
except (ImportError, RuntimeError) as e:
use_IM = False
log = logger.create()
try:
from comicapi.comicarchive import ComicArchive, MetaDataStyle
use_comic_meta = True
try:
from comicapi import __version__ as comic_version
except ImportError:
comic_version = ''
try:
from comicapi.comicarchive import load_archive_plugins
import comicapi.utils
comicapi.utils.add_rar_paths()
except ImportError:
load_archive_plugins = None
except (ImportError, LookupError) as e:
log.debug('Cannot import comicapi, extracting comic metadata will not work: %s', e)
import zipfile
import tarfile
try:
import rarfile
use_rarfile = True
except (ImportError, SyntaxError) as e:
log.debug('Cannot import rarfile, extracting cover files from rar files will not work: %s', e)
use_rarfile = False
try:
import py7zr
use_7zip = True
except (ImportError, SyntaxError) as e:
log.debug('Cannot import py7zr, extracting cover files from CB7 files will not work: %s', e)
use_7zip = False
use_comic_meta = False
def _extract_cover_from_archive(original_file_extension, tmp_file_name, rar_executable):
cover_data = extension = None
if original_file_extension.upper() == '.CBZ':
cf = zipfile.ZipFile(tmp_file_name)
for name in cf.namelist():
ext = os.path.splitext(name)
if len(ext) > 1:
extension = ext[1].lower()
if extension in cover.COVER_EXTENSIONS:
cover_data = cf.read(name)
break
elif original_file_extension.upper() == '.CBT':
cf = tarfile.TarFile(tmp_file_name)
for name in cf.getnames():
ext = os.path.splitext(name)
if len(ext) > 1:
extension = ext[1].lower()
if extension in cover.COVER_EXTENSIONS:
cover_data = cf.extractfile(name).read()
break
elif original_file_extension.upper() == '.CBR' and use_rarfile:
try:
rarfile.UNRAR_TOOL = rar_executable
cf = rarfile.RarFile(tmp_file_name)
for name in cf.namelist():
ext = os.path.splitext(name)
if len(ext) > 1:
extension = ext[1].lower()
if extension in cover.COVER_EXTENSIONS:
cover_data = cf.read([name])
break
except Exception as ex:
log.error('Rarfile failed with error: {}'.format(ex))
elif original_file_extension.upper() == '.CB7' and use_7zip:
cf = py7zr.SevenZipFile(tmp_file_name)
for name in cf.getnames():
ext = os.path.splitext(name)
if len(ext) > 1:
extension = ext[1].lower()
if extension in cover.COVER_EXTENSIONS:
try:
cover_data = cf.read([name])[name].read()
except (py7zr.Bad7zFile, OSError) as ex:
log.error('7Zip file failed with error: {}'.format(ex))
break
return cover_data, extension
def _extract_cover(tmp_file_name, original_file_extension, rar_executable):
cover_data = extension = None
if use_comic_meta:
try:
archive = ComicArchive(tmp_file_name, rar_exe_path=rar_executable)
except TypeError:
archive = ComicArchive(tmp_file_name)
name_list = archive.getPageNameList if hasattr(archive, "getPageNameList") else archive.get_page_name_list
for index, name in enumerate(name_list()):
ext = os.path.splitext(name)
if len(ext) > 1:
extension = ext[1].lower()
if extension in cover.COVER_EXTENSIONS:
get_page = archive.getPage if hasattr(archive, "getPageNameList") else archive.get_page
cover_data = get_page(index)
break
else:
cover_data, extension = _extract_cover_from_archive(original_file_extension, tmp_file_name, rar_executable)
return cover.cover_processing(tmp_file_name, cover_data, extension)
def get_comic_info(tmp_file_path, original_file_name, original_file_extension, rar_executable):
if use_comic_meta:
try:
archive = ComicArchive(tmp_file_path, rar_exe_path=rar_executable)
except TypeError:
load_archive_plugins(force=True, rar=rar_executable)
archive = ComicArchive(tmp_file_path)
if hasattr(archive, "seemsToBeAComicArchive"):
seems_archive = archive.seemsToBeAComicArchive
else:
seems_archive = archive.seems_to_be_a_comic_archive
if seems_archive():
has_metadata = archive.hasMetadata if hasattr(archive, "hasMetadata") else archive.has_metadata
if has_metadata(MetaDataStyle.CIX):
style = MetaDataStyle.CIX
elif has_metadata(MetaDataStyle.CBI):
style = MetaDataStyle.CBI
else:
style = None
read_metadata = archive.readMetadata if hasattr(archive, "readMetadata") else archive.read_metadata
loaded_metadata = read_metadata(style)
lang = loaded_metadata.language or ""
loaded_metadata.language = isoLanguages.get_lang3(lang)
return BookMeta(
file_path=tmp_file_path,
extension=original_file_extension,
title=loaded_metadata.title or original_file_name,
author=" & ".join([credit["person"]
for credit in loaded_metadata.credits if credit["role"] == "Writer"]) or 'Unknown',
cover=_extract_cover(tmp_file_path, original_file_extension, rar_executable),
description=loaded_metadata.comments or "",
tags="",
series=loaded_metadata.series or "",
series_id=loaded_metadata.issue or "",
languages=loaded_metadata.language,
publisher="",
pubdate="",
identifiers=[])
return BookMeta(
file_path=tmp_file_path,
extension=original_file_extension,
title=original_file_name,
author='Unknown',
cover=_extract_cover(tmp_file_path, original_file_extension, rar_executable),
description="",
tags="",
series="",
series_id="",
languages="",
publisher="",
pubdate="",
identifiers=[])