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# Copyright (C) 2020-2023 RhodeCode GmbH
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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 Affero General Public License, version 3
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# (only), as published by the Free Software Foundation.
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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 Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# This program is dual-licensed. If you wish to learn more about the
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# RhodeCode Enterprise Edition, including its added features, Support services,
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# and proprietary license terms, please see https://rhodecode.com/licenses/
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import functools
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import logging
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from .html_sanitizer_defs import markdown_attrs, markdown_tags, all_tags, all_styles
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log = logging.getLogger(__name__)
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# base64 filter e.g ${ example | base64,n }
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def base64(text):
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from rhodecode.lib.str_utils import base64_to_str
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return base64_to_str(text)
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def sanitize_html(text, **kwargs):
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# TODO: replace this with https://nh3.readthedocs.io/en/latest
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# bleach is abandoned and deprecated :/
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import bleach
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from bleach.css_sanitizer import CSSSanitizer
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css_sanitizer = CSSSanitizer(allowed_css_properties=all_styles)
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markdown = kwargs.pop('markdown', False)
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allowed_attrs = markdown_attrs
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cleaner = functools.partial(bleach.clean,
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tags=all_tags,
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attributes=allowed_attrs,
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css_sanitizer=css_sanitizer,
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strip_comments=False, **kwargs)
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if markdown:
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cleaner = functools.partial(bleach.clean,
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tags=markdown_tags,
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attributes=markdown_attrs,
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css_sanitizer=css_sanitizer,
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strip_comments=False, **kwargs)
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try:
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return cleaner(text)
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except Exception:
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log.exception('Failed to sanitize html')
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return 'TEXT CANNOT BE PARSED USING HTML SANITIZE'
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