File: D:/Python311/Lib/site-packages/pip/_vendor/cachecontrol/__pycache__/heuristics.cpython-311.pyc
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Return a valid 1xx warning header value describing the cache
adjustments.
The response is provided too allow warnings like 113
http://tools.ietf.org/html/rfc7234#section-5.5.4 where we need
to explicitly say response is over 24 hours old.
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� � +�*r �dict[str, str]c � � i S )z�Update the response headers with any new headers.
NOTE: This SHOULD always include some Warning header to
signify that the response was cached by the client, not
by way of the provided headers.
r% r& s r �update_headersz BaseHeuristic.update_headers' s � � � r c �� � | � |� � }|rM|j � |� � | � |� � }|� |j � d|i� � |S )N�Warning)r+ �headers�updater( )r' r" �updated_headers�warning_header_values r �applyzBaseHeuristic.apply0 sr � � �-�-�h�7�7�� � K� � � #� #�O� 4� 4� 4�#'�<�<��#9�#9� �#�
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future.
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using the heuristic from
http://tools.ietf.org/html/rfc7234#section-4.2.2
to calculate a reasonable value.
Firefox also does something like this per
https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching_FAQ
http://lxr.mozilla.org/mozilla-release/source/netwerk/protocol/http/nsHttpResponseHead.cpp#397
Unlike mozilla we limit this to 24-hr.
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