mirror of
https://github.com/janeczku/calibre-web
synced 2024-12-25 01:20:32 +00:00
171 lines
6.2 KiB
Python
171 lines
6.2 KiB
Python
# -*- coding: utf-8 -*-
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# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
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# Copyright (C) 2018 OzzieIsaacs
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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from . import logger, isoLanguages
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from .constants import BookMeta
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log = logger.create()
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try:
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from wand.image import Image
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use_IM = True
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except (ImportError, RuntimeError) as e:
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use_IM = False
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try:
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from comicapi.comicarchive import ComicArchive, MetaDataStyle
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use_comic_meta = True
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try:
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from comicapi import __version__ as comic_version
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except ImportError:
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comic_version = ''
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except (ImportError, LookupError) as e:
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log.debug('Cannot import comicapi, extracting comic metadata will not work: %s', e)
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import zipfile
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import tarfile
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try:
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import rarfile
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use_rarfile = True
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except (ImportError, SyntaxError) as e:
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log.debug('Cannot import rarfile, extracting cover files from rar files will not work: %s', e)
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use_rarfile = False
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use_comic_meta = False
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NO_JPEG_EXTENSIONS = ['.png', '.webp', '.bmp']
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COVER_EXTENSIONS = ['.png', '.webp', '.bmp', '.jpg', '.jpeg']
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def _cover_processing(tmp_file_name, img, extension):
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tmp_cover_name = os.path.join(os.path.dirname(tmp_file_name), 'cover.jpg')
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if use_IM:
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# convert to jpg because calibre only supports jpg
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if extension in NO_JPEG_EXTENSIONS:
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with Image(filename=tmp_file_name) as imgc:
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imgc.format = 'jpeg'
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imgc.transform_colorspace('rgb')
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imgc.save(tmp_cover_name)
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return tmp_cover_name
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if not img:
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return None
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with open(tmp_cover_name, 'wb') as f:
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f.write(img)
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return tmp_cover_name
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def _extract_Cover_from_archive(original_file_extension, tmp_file_name, rarExecutable):
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cover_data = None
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if original_file_extension.upper() == '.CBZ':
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cf = zipfile.ZipFile(tmp_file_name)
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for name in cf.namelist():
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ext = os.path.splitext(name)
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if len(ext) > 1:
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extension = ext[1].lower()
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if extension in COVER_EXTENSIONS:
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cover_data = cf.read(name)
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break
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elif original_file_extension.upper() == '.CBT':
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cf = tarfile.TarFile(tmp_file_name)
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for name in cf.getnames():
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ext = os.path.splitext(name)
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if len(ext) > 1:
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extension = ext[1].lower()
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if extension in COVER_EXTENSIONS:
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cover_data = cf.extractfile(name).read()
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break
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elif original_file_extension.upper() == '.CBR' and use_rarfile:
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try:
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rarfile.UNRAR_TOOL = rarExecutable
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cf = rarfile.RarFile(tmp_file_name)
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for name in cf.getnames():
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ext = os.path.splitext(name)
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if len(ext) > 1:
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extension = ext[1].lower()
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if extension in COVER_EXTENSIONS:
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cover_data = cf.read(name)
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break
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except Exception as ex:
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log.debug('Rarfile failed with error: %s', ex)
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return cover_data
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def _extractCover(tmp_file_name, original_file_extension, rarExecutable):
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cover_data = extension = None
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if use_comic_meta:
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archive = ComicArchive(tmp_file_name, rar_exe_path=rarExecutable)
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for index, name in enumerate(archive.getPageNameList()):
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ext = os.path.splitext(name)
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if len(ext) > 1:
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extension = ext[1].lower()
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if extension in COVER_EXTENSIONS:
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cover_data = archive.getPage(index)
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break
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else:
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cover_data = _extract_Cover_from_archive(original_file_extension, tmp_file_name, rarExecutable)
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return _cover_processing(tmp_file_name, cover_data, extension)
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def get_comic_info(tmp_file_path, original_file_name, original_file_extension, rarExecutable):
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if use_comic_meta:
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archive = ComicArchive(tmp_file_path, rar_exe_path=rarExecutable)
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if archive.seemsToBeAComicArchive():
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if archive.hasMetadata(MetaDataStyle.CIX):
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style = MetaDataStyle.CIX
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elif archive.hasMetadata(MetaDataStyle.CBI):
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style = MetaDataStyle.CBI
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else:
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style = None
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# if style is not None:
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loadedMetadata = archive.readMetadata(style)
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lang = loadedMetadata.language or ""
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loadedMetadata.language = isoLanguages.get_lang3(lang)
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return BookMeta(
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file_path=tmp_file_path,
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extension=original_file_extension,
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title=loadedMetadata.title or original_file_name,
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author=" & ".join([credit["person"]
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for credit in loadedMetadata.credits if credit["role"] == "Writer"]) or u'Unknown',
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cover=_extractCover(tmp_file_path, original_file_extension, rarExecutable),
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description=loadedMetadata.comments or "",
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tags="",
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series=loadedMetadata.series or "",
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series_id=loadedMetadata.issue or "",
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languages=loadedMetadata.language,
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publisher="")
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return BookMeta(
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file_path=tmp_file_path,
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extension=original_file_extension,
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title=original_file_name,
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author=u'Unknown',
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cover=_extractCover(tmp_file_path, original_file_extension, rarExecutable),
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description="",
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tags="",
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series="",
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series_id="",
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languages="",
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publisher="")
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