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calibre-web/cps/clean_html.py

54 lines
1.8 KiB
Python

# -*- coding: utf-8 -*-
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
# Copyright (C) 2018-2019 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/>.
from . import logger
from lxml.etree import ParserError
try:
# at least bleach 6.0 is needed -> incomplatible change from list arguments to set arguments
from bleach import clean_text as clean_html
BLEACH = True
except ImportError:
try:
BLEACH = False
from nh3 import clean as clean_html
except ImportError:
try:
BLEACH = False
from lxml.html.clean import clean_html
except ImportError:
clean_html = None
log = logger.create()
def clean_string(unsafe_text, book_id=0):
try:
if BLEACH:
safe_text = clean_html(unsafe_text, tags=set(), attributes=set())
else:
safe_text = clean_html(unsafe_text)
except ParserError as e:
log.error("Comments of book {} are corrupted: {}".format(book_id, e))
safe_text = ""
except TypeError as e:
log.error("Comments can't be parsed, maybe 'lxml' is too new, try installing 'bleach': {}".format(e))
safe_text = ""
return safe_text