663 lines
23 KiB
Python
663 lines
23 KiB
Python
"""A class to represent a single comic, be it file or folder of images"""
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# Copyright 2012-2014 Anthony Beville
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import annotations
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import io
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import logging
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import os
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import pathlib
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import shutil
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import zipfile
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from typing import cast
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import natsort
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import wordninja
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from comicapi import filenamelexer, filenameparser, utils
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from comicapi.archivers import FolderArchiver, RarArchiver, SevenZipArchiver, UnknownArchiver, ZipArchiver
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from comicapi.comet import CoMet
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from comicapi.comicbookinfo import ComicBookInfo
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from comicapi.comicinfoxml import ComicInfoXml
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from comicapi.genericmetadata import GenericMetadata, PageType
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try:
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import py7zr
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z7_support = True
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except ImportError:
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z7_support = False
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try:
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from unrar.cffi import rarfile
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rar_support = True
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except ImportError:
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rar_support = False
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try:
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from PIL import Image
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pil_available = True
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except ImportError:
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pil_available = False
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logger = logging.getLogger(__name__)
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if not pil_available:
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logger.error("PIL unavalable")
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class MetaDataStyle:
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CBI = 0
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CIX = 1
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COMET = 2
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name = ["ComicBookLover", "ComicRack", "CoMet"]
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short_name = ["cbl", "cr", "comet"]
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class ComicArchive:
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logo_data = b""
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class ArchiveType:
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SevenZip, Zip, Rar, Folder, Pdf, Unknown = list(range(6))
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def __init__(
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self,
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path: pathlib.Path | str,
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rar_exe_path: str = "rar",
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default_image_path: pathlib.Path | str | None = None,
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) -> None:
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self.cbi_md: GenericMetadata | None = None
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self.cix_md: GenericMetadata | None = None
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self.comet_filename: str | None = None
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self.comet_md: GenericMetadata | None = None
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self._has_cbi: bool | None = None
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self._has_cix: bool | None = None
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self._has_comet: bool | None = None
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self.path = pathlib.Path(path).absolute()
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self.page_count: int | None = None
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self.page_list: list[str] = []
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self.rar_exe_path = shutil.which(rar_exe_path or "rar") or ""
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self.ci_xml_filename = "ComicInfo.xml"
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self.comet_default_filename = "CoMet.xml"
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self.reset_cache()
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self.default_image_path = default_image_path
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# Use file extension to decide which archive test we do first
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ext = self.path.suffix
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self.archive_type = self.ArchiveType.Unknown
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self.archiver = UnknownArchiver(self.path)
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if ext in [".cbr", ".rar"]:
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if self.rar_test():
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self.archive_type = self.ArchiveType.Rar
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self.archiver = RarArchiver(self.path, rar_exe_path=self.rar_exe_path)
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elif self.zip_test():
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self.archive_type = self.ArchiveType.Zip
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self.archiver = ZipArchiver(self.path)
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else:
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if self.sevenzip_test():
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self.archive_type = self.ArchiveType.SevenZip
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self.archiver = SevenZipArchiver(self.path)
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elif self.zip_test():
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self.archive_type = self.ArchiveType.Zip
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self.archiver = ZipArchiver(self.path)
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elif self.rar_test():
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self.archive_type = self.ArchiveType.Rar
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self.archiver = RarArchiver(self.path, rar_exe_path=self.rar_exe_path)
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elif self.folder_test():
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self.archive_type = self.ArchiveType.Folder
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self.archiver = FolderArchiver(self.path)
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if not ComicArchive.logo_data and self.default_image_path:
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with open(self.default_image_path, mode="rb") as fd:
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ComicArchive.logo_data = fd.read()
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def reset_cache(self) -> None:
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"""Clears the cached data"""
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self._has_cix = None
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self._has_cbi = None
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self._has_comet = None
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self.comet_filename = None
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self.page_count = None
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self.page_list = []
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self.cix_md = None
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self.cbi_md = None
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self.comet_md = None
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def load_cache(self, style_list: list[int]) -> None:
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for style in style_list:
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self.read_metadata(style)
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def rename(self, path: pathlib.Path | str) -> None:
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new_path = pathlib.Path(path).absolute()
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if new_path == self.path:
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return
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os.makedirs(new_path.parent, 0o777, True)
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shutil.move(self.path, new_path)
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self.path = new_path
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self.archiver.path = pathlib.Path(path)
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def sevenzip_test(self) -> bool:
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return z7_support and py7zr.is_7zfile(self.path)
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def zip_test(self) -> bool:
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return zipfile.is_zipfile(self.path)
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def rar_test(self) -> bool:
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return rar_support and rarfile.is_rarfile(str(self.path))
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def folder_test(self) -> bool:
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return self.path.is_dir()
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def is_sevenzip(self) -> bool:
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return self.archive_type == self.ArchiveType.SevenZip
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def is_zip(self) -> bool:
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return self.archive_type == self.ArchiveType.Zip
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def is_rar(self) -> bool:
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return self.archive_type == self.ArchiveType.Rar
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def is_pdf(self) -> bool:
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return self.archive_type == self.ArchiveType.Pdf
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def is_folder(self) -> bool:
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return self.archive_type == self.ArchiveType.Folder
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def is_writable(self, check_rar_status: bool = True) -> bool:
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if self.archive_type == self.ArchiveType.Unknown:
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return False
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if check_rar_status and self.is_rar() and not self.rar_exe_path:
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return False
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if not os.access(self.path, os.W_OK):
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return False
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if (self.archive_type != self.ArchiveType.Folder) and (not os.access(self.path.parent, os.W_OK)):
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return False
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return True
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def is_writable_for_style(self, data_style: int) -> bool:
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if (self.is_rar() or self.is_sevenzip()) and data_style == MetaDataStyle.CBI:
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return False
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return self.is_writable()
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def seems_to_be_a_comic_archive(self) -> bool:
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if (self.is_zip() or self.is_rar() or self.is_sevenzip() or self.is_folder()) and (
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self.get_number_of_pages() > 0
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):
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return True
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return False
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def read_metadata(self, style: int) -> GenericMetadata:
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if style == MetaDataStyle.CIX:
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return self.read_cix()
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if style == MetaDataStyle.CBI:
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return self.read_cbi()
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if style == MetaDataStyle.COMET:
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return self.read_comet()
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return GenericMetadata()
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def write_metadata(self, metadata: GenericMetadata, style: int) -> bool:
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retcode = False
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if style == MetaDataStyle.CIX:
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retcode = self.write_cix(metadata)
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if style == MetaDataStyle.CBI:
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retcode = self.write_cbi(metadata)
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if style == MetaDataStyle.COMET:
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retcode = self.write_comet(metadata)
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return retcode
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def has_metadata(self, style: int) -> bool:
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if style == MetaDataStyle.CIX:
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return self.has_cix()
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if style == MetaDataStyle.CBI:
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return self.has_cbi()
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if style == MetaDataStyle.COMET:
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return self.has_comet()
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return False
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def remove_metadata(self, style: int) -> bool:
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retcode = True
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if style == MetaDataStyle.CIX:
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retcode = self.remove_cix()
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elif style == MetaDataStyle.CBI:
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retcode = self.remove_cbi()
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elif style == MetaDataStyle.COMET:
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retcode = self.remove_co_met()
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return retcode
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def get_page(self, index: int) -> bytes:
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image_data = b""
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filename = self.get_page_name(index)
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if filename:
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try:
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image_data = self.archiver.read_file(filename) or b""
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except Exception:
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logger.error("Error reading in page %d. Substituting logo page.", index)
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image_data = ComicArchive.logo_data
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return image_data
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def get_page_name(self, index: int) -> str:
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if index is None:
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return ""
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page_list = self.get_page_name_list()
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num_pages = len(page_list)
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if num_pages == 0 or index >= num_pages:
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return ""
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return page_list[index]
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def get_scanner_page_index(self) -> int | None:
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scanner_page_index = None
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# make a guess at the scanner page
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name_list = self.get_page_name_list()
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count = self.get_number_of_pages()
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# too few pages to really know
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if count < 5:
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return None
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# count the length of every filename, and count occurrences
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length_buckets: dict[int, int] = {}
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for name in name_list:
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fname = os.path.split(name)[1]
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length = len(fname)
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if length in length_buckets:
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length_buckets[length] += 1
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else:
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length_buckets[length] = 1
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# sort by most common
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sorted_buckets = sorted(length_buckets.items(), key=lambda tup: (tup[1], tup[0]), reverse=True)
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# statistical mode occurrence is first
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mode_length = sorted_buckets[0][0]
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# we are only going to consider the final image file:
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final_name = os.path.split(name_list[count - 1])[1]
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common_length_list = []
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for name in name_list:
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if len(os.path.split(name)[1]) == mode_length:
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common_length_list.append(os.path.split(name)[1])
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prefix = os.path.commonprefix(common_length_list)
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if mode_length <= 7 and prefix == "":
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# probably all numbers
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if len(final_name) > mode_length:
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scanner_page_index = count - 1
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# see if the last page doesn't start with the same prefix as most others
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elif not final_name.startswith(prefix):
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scanner_page_index = count - 1
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return scanner_page_index
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def get_page_name_list(self, sort_list: bool = True) -> list[str]:
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if not self.page_list:
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# get the list file names in the archive, and sort
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files: list[str] = self.archiver.get_filename_list()
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# seems like some archive creators are on Windows, and don't know about case-sensitivity!
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if sort_list:
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files = cast(list[str], natsort.os_sorted(files))
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# make a sub-list of image files
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self.page_list = []
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for name in files:
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if (
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os.path.splitext(name)[1].casefold() in [".jpg", ".jpeg", ".png", ".gif", ".webp"]
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and os.path.basename(name)[0] != "."
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):
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self.page_list.append(name)
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return self.page_list
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def get_number_of_pages(self) -> int:
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if self.page_count is None:
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self.page_count = len(self.get_page_name_list())
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return self.page_count
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def read_cbi(self) -> GenericMetadata:
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if self.cbi_md is None:
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raw_cbi = self.read_raw_cbi()
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if raw_cbi:
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self.cbi_md = ComicBookInfo().metadata_from_string(raw_cbi)
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else:
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self.cbi_md = GenericMetadata()
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self.cbi_md.set_default_page_list(self.get_number_of_pages())
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return self.cbi_md
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def read_raw_cbi(self) -> str:
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if not self.has_cbi():
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return ""
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return self.archiver.get_comment()
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def has_cbi(self) -> bool:
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if self._has_cbi is None:
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if not self.seems_to_be_a_comic_archive():
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self._has_cbi = False
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else:
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comment = self.archiver.get_comment()
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self._has_cbi = ComicBookInfo().validate_string(comment)
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return self._has_cbi
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def write_cbi(self, metadata: GenericMetadata) -> bool:
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if metadata is not None:
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try:
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self.apply_archive_info_to_metadata(metadata)
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cbi_string = ComicBookInfo().string_from_metadata(metadata)
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write_success = self.archiver.set_comment(cbi_string)
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if write_success:
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self._has_cbi = True
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self.cbi_md = metadata
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self.reset_cache()
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return write_success
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except Exception as e:
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logger.error("Error saving CBI! for %s: %s", self.path, e)
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return False
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def remove_cbi(self) -> bool:
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if self.has_cbi():
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write_success = self.archiver.set_comment("")
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if write_success:
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self._has_cbi = False
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self.cbi_md = None
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self.reset_cache()
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return write_success
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return True
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def read_cix(self) -> GenericMetadata:
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if self.cix_md is None:
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raw_cix = self.read_raw_cix()
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if raw_cix:
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self.cix_md = ComicInfoXml().metadata_from_string(raw_cix)
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else:
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self.cix_md = GenericMetadata()
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# validate the existing page list (make sure count is correct)
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if len(self.cix_md.pages) != 0:
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if len(self.cix_md.pages) != self.get_number_of_pages():
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# pages array doesn't match the actual number of images we're seeing
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# in the archive, so discard the data
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self.cix_md.pages = []
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if len(self.cix_md.pages) == 0:
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self.cix_md.set_default_page_list(self.get_number_of_pages())
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return self.cix_md
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def read_raw_cix(self) -> bytes:
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if not self.has_cix():
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return b""
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try:
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raw_cix = self.archiver.read_file(self.ci_xml_filename) or b""
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except Exception as e:
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logger.error("Error reading in raw CIX! for %s: %s", self.path, e)
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raw_cix = b""
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return raw_cix
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def write_cix(self, metadata: GenericMetadata) -> bool:
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if metadata is not None:
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try:
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self.apply_archive_info_to_metadata(metadata, calc_page_sizes=True)
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raw_cix = self.read_raw_cix()
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cix_string = ComicInfoXml().string_from_metadata(metadata, xml=raw_cix)
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write_success = self.archiver.write_file(self.ci_xml_filename, cix_string.encode("utf-8"))
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if write_success:
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self._has_cix = True
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self.cix_md = metadata
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self.reset_cache()
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return write_success
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except Exception as e:
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logger.error("Error saving CIX! for %s: %s", self.path, e)
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return False
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def remove_cix(self) -> bool:
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if self.has_cix():
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write_success = self.archiver.remove_file(self.ci_xml_filename)
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if write_success:
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self._has_cix = False
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self.cix_md = None
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self.reset_cache()
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return write_success
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return True
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def has_cix(self) -> bool:
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if self._has_cix is None:
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if not self.seems_to_be_a_comic_archive():
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self._has_cix = False
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elif self.ci_xml_filename in self.archiver.get_filename_list():
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self._has_cix = True
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else:
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self._has_cix = False
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return self._has_cix
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def read_comet(self) -> GenericMetadata:
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if self.comet_md is None:
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raw_comet = self.read_raw_comet()
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if raw_comet is None or raw_comet == "":
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self.comet_md = GenericMetadata()
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else:
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self.comet_md = CoMet().metadata_from_string(raw_comet)
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self.comet_md.set_default_page_list(self.get_number_of_pages())
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# use the coverImage value from the comet_data to mark the cover in this struct
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# walk through list of images in file, and find the matching one for md.coverImage
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# need to remove the existing one in the default
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if self.comet_md.cover_image is not None:
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cover_idx = 0
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for idx, f in enumerate(self.get_page_name_list()):
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if self.comet_md.cover_image == f:
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cover_idx = idx
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break
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if cover_idx != 0:
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del self.comet_md.pages[0]["Type"]
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self.comet_md.pages[cover_idx]["Type"] = PageType.FrontCover
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return self.comet_md
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def read_raw_comet(self) -> str:
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raw_comet = ""
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if not self.has_comet():
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raw_comet = ""
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else:
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try:
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raw_bytes = self.archiver.read_file(cast(str, self.comet_filename))
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if raw_bytes:
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raw_comet = raw_bytes.decode("utf-8")
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except OSError as e:
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logger.exception("Error reading in raw CoMet!: %s", e)
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return raw_comet
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def write_comet(self, metadata: GenericMetadata) -> bool:
|
|
|
|
if metadata is not None:
|
|
if not self.has_comet():
|
|
self.comet_filename = self.comet_default_filename
|
|
|
|
self.apply_archive_info_to_metadata(metadata)
|
|
# Set the coverImage value, if it's not the first page
|
|
cover_idx = int(metadata.get_cover_page_index_list()[0])
|
|
if cover_idx != 0:
|
|
metadata.cover_image = self.get_page_name(cover_idx)
|
|
|
|
comet_string = CoMet().string_from_metadata(metadata)
|
|
write_success = self.archiver.write_file(cast(str, self.comet_filename), comet_string.encode("utf-8"))
|
|
if write_success:
|
|
self._has_comet = True
|
|
self.comet_md = metadata
|
|
self.reset_cache()
|
|
return write_success
|
|
|
|
return False
|
|
|
|
def remove_co_met(self) -> bool:
|
|
if self.has_comet():
|
|
write_success = self.archiver.remove_file(cast(str, self.comet_filename))
|
|
if write_success:
|
|
self._has_comet = False
|
|
self.comet_md = None
|
|
self.reset_cache()
|
|
return write_success
|
|
return True
|
|
|
|
def has_comet(self) -> bool:
|
|
if self._has_comet is None:
|
|
self._has_comet = False
|
|
if not self.seems_to_be_a_comic_archive():
|
|
return self._has_comet
|
|
|
|
# look at all xml files in root, and search for CoMet data, get first
|
|
for n in self.archiver.get_filename_list():
|
|
if os.path.dirname(n) == "" and os.path.splitext(n)[1].casefold() == ".xml":
|
|
# read in XML file, and validate it
|
|
data = ""
|
|
try:
|
|
d = self.archiver.read_file(n)
|
|
if d:
|
|
data = d.decode("utf-8")
|
|
except Exception as e:
|
|
logger.warning("Error reading in Comet XML for validation! from %s: %s", self.path, e)
|
|
if CoMet().validate_string(data):
|
|
# since we found it, save it!
|
|
self.comet_filename = n
|
|
self._has_comet = True
|
|
break
|
|
|
|
return self._has_comet
|
|
|
|
def apply_archive_info_to_metadata(self, md: GenericMetadata, calc_page_sizes: bool = False) -> None:
|
|
md.page_count = self.get_number_of_pages()
|
|
|
|
if calc_page_sizes:
|
|
for index, p in enumerate(md.pages):
|
|
idx = int(p["Image"])
|
|
if pil_available:
|
|
if "ImageSize" not in p or "ImageHeight" not in p or "ImageWidth" not in p:
|
|
data = self.get_page(idx)
|
|
if data:
|
|
try:
|
|
if isinstance(data, bytes):
|
|
im = Image.open(io.BytesIO(data))
|
|
else:
|
|
im = Image.open(io.StringIO(data))
|
|
w, h = im.size
|
|
|
|
p["ImageSize"] = str(len(data))
|
|
p["ImageHeight"] = str(h)
|
|
p["ImageWidth"] = str(w)
|
|
except Exception as e:
|
|
logger.warning("Error decoding image [%s] %s :: image %s", e, self.path, index)
|
|
p["ImageSize"] = str(len(data))
|
|
|
|
else:
|
|
if "ImageSize" not in p:
|
|
data = self.get_page(idx)
|
|
p["ImageSize"] = str(len(data))
|
|
|
|
def metadata_from_filename(
|
|
self,
|
|
complicated_parser: bool = False,
|
|
remove_c2c: bool = False,
|
|
remove_fcbd: bool = False,
|
|
remove_publisher: bool = False,
|
|
split_words: bool = False,
|
|
) -> GenericMetadata:
|
|
|
|
metadata = GenericMetadata()
|
|
|
|
filename = self.path.name
|
|
if split_words:
|
|
filename = " ".join(wordninja.split(self.path.stem)) + self.path.suffix
|
|
|
|
if complicated_parser:
|
|
lex = filenamelexer.Lex(filename)
|
|
p = filenameparser.Parse(
|
|
lex.items, remove_c2c=remove_c2c, remove_fcbd=remove_fcbd, remove_publisher=remove_publisher
|
|
)
|
|
metadata.alternate_number = utils.xlate(p.filename_info["alternate"])
|
|
metadata.issue = utils.xlate(p.filename_info["issue"])
|
|
metadata.issue_count = utils.xlate(p.filename_info["issue_count"])
|
|
metadata.publisher = utils.xlate(p.filename_info["publisher"])
|
|
metadata.series = utils.xlate(p.filename_info["series"])
|
|
metadata.title = utils.xlate(p.filename_info["title"])
|
|
metadata.volume = utils.xlate(p.filename_info["volume"])
|
|
metadata.volume_count = utils.xlate(p.filename_info["volume_count"])
|
|
metadata.year = utils.xlate(p.filename_info["year"])
|
|
|
|
metadata.scan_info = utils.xlate(p.filename_info["remainder"])
|
|
metadata.format = "FCBD" if p.filename_info["fcbd"] else None
|
|
if p.filename_info["annual"]:
|
|
metadata.format = "Annual"
|
|
else:
|
|
fnp = filenameparser.FileNameParser()
|
|
fnp.parse_filename(filename)
|
|
|
|
if fnp.issue:
|
|
metadata.issue = fnp.issue
|
|
if fnp.series:
|
|
metadata.series = fnp.series
|
|
if fnp.volume:
|
|
metadata.volume = utils.xlate(fnp.volume, True)
|
|
if fnp.year:
|
|
metadata.year = utils.xlate(fnp.year, True)
|
|
if fnp.issue_count:
|
|
metadata.issue_count = utils.xlate(fnp.issue_count, True)
|
|
if fnp.remainder:
|
|
metadata.scan_info = fnp.remainder
|
|
|
|
metadata.is_empty = False
|
|
|
|
return metadata
|
|
|
|
def export_as_zip(self, zip_filename: pathlib.Path | str) -> bool:
|
|
if self.archive_type == self.ArchiveType.Zip:
|
|
# nothing to do, we're already a zip
|
|
return True
|
|
|
|
zip_archiver = ZipArchiver(zip_filename)
|
|
return zip_archiver.copy_from_archive(self.archiver)
|