96 lines
2.2 KiB
Python
96 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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import logging
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import os
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import zipfile
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import ox
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logger = logging.getLogger(__name__)
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IMAGE_EXTENSIONS = ['.jpg', '.png', '.gif']
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def filter_images(files):
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return [f for f in files if os.path.splitext(f)[-1].lower() in IMAGE_EXTENSIONS]
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def detect_format(path):
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with open(path, 'rb') as fd:
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head = fd.read(10)
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if head[:2] == b'PK':
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return 'cbz'
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if head[:3] == b'Rar':
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return 'cbr'
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logger.debug('unknown cbr/cbz file %s - %s', head, path)
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return 'unknown'
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def cover(path):
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format = detect_format(path)
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if format == 'cbz':
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cover = cover_cbz(path)
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elif format == 'cbr':
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cover = cover_cbr(path)
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else:
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cover = None
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return cover
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def cover_cbr(path):
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data = None
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try:
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from unrar import rarfile
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rar = rarfile.RarFile(path)
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files = rar.namelist()
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files = filter_images(files)
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if files:
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cover = ox.sorted_strings(files)[0]
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data = rar.read(cover)
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except:
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logger.debug('invalid cbr file %s', path)
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data = None
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return data
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def cover_cbz(path):
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data = None
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logger.debug('cover %s', path)
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data = None
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try:
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z = zipfile.ZipFile(path)
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except zipfile.BadZipFile:
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logger.debug('invalid cbz file %s', path)
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return data
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files = [f.filename for f in z.filelist]
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files = filter_images(files)
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if files:
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cover = ox.sorted_strings(files)[0]
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try:
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data = z.read(cover)
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except:
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data = None
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return data
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def get_pages(path):
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files = []
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format = detect_format(path)
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if format == 'cbz':
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try:
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z = zipfile.ZipFile(path)
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except zipfile.BadZipFile:
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logger.debug('invalid cbz file %s', path)
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return data
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files = [f.filename for f in z.filelist]
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elif format == 'cbr':
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try:
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from unrar import rarfile
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rar = rarfile.RarFile(path)
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files = rar.namelist()
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except:
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pass
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files = filter_images(files)
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return len(files)
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def info(path):
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data = {}
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data['title'] = os.path.splitext(os.path.basename(path))[0]
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data['pages'] = get_pages(path)
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return data
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