Onionr/onionr/onionrservices/httpheaders.py

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'''
Onionr - Private P2P Communication
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Set default onionr http headers
'''
'''
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 <https://www.gnu.org/licenses/>.
'''
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FEATURE_POLICY = """vibrate; vr; webauthn; usb; sync-xhr; speaker;
picture-in-picture; payment; midi; microphone; magnetometer; gyroscope;
geolocation; fullscreen; encrypted-media; document-domain;
camera; accelerometer; ambient-light-sensor""".replace('\n', '') # have to remove \n for flask
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def set_default_onionr_http_headers(flask_response):
'''Response headers'''
flask_response.headers['Content-Security-Policy'] = "default-src 'none'; style-src data: 'unsafe-inline'; img-src data:"
flask_response.headers['X-Frame-Options'] = 'deny'
flask_response.headers['X-Content-Type-Options'] = "nosniff"
flask_response.headers['Server'] = ''
flask_response.headers['Date'] = 'Thu, 1 Jan 1970 00:00:00 GMT' # Clock info is probably useful to attackers. Set to unix epoch.
flask_response.headers['Connection'] = "close"
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flask_response.headers['Clear-Site-Data'] = '"cache", "cookies", "storage", "executionContexts"'
flask_response.headers['Feature-Policy'] = FEATURE_POLICY
flask_response.headers['Referrer-Policy'] = 'same-origin'
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return flask_response