o V h@sddlmZddlZddlZddlmZmZmZddlmZm Z m Z ddl m Z m Z mZe r4ddlmZdZddddZdddZGdddZGdddeZGdddeZGdddeZdS)) annotationsN)datetime timedeltatimezone) formatdate parsedate parsedate_tz) TYPE_CHECKINGAnyMapping) HTTPResponsez%a, %d %b %Y %H:%M:%S GMTdeltardatedatetime | NonereturnrcCs|pttj}||SN)rnowrutc)r rrk/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/cachecontrol/heuristics.py expire_aftersrdtstrcCstt|Sr)rcalendartimegm timetuple)rrrrdatetime_to_headersrc@s*eZdZd ddZddd Zdd d Zd S) BaseHeuristicresponser r str | NonecCsdS)a! 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. z110 - "Response is Stale"rselfrrrrwarnings zBaseHeuristic.warningdict[str, str]cCsiS)zUpdate 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. rr rrrupdate_headers'szBaseHeuristic.update_headerscCs@||}|r|j|||}|dur|jd|i|S)NWarning)r$headersupdater")r!rupdated_headerswarning_header_valuerrrapply0s   zBaseHeuristic.applyNrr rrrr rr#)rr rr )__name__ __module__ __qualname__r"r$r*rrrrrs   rc@seZdZdZd ddZdS) OneDayCachezM Cache the response by providing an expires 1 day in the future. rr rr#cCsZi}d|jvr+t|jd}ttddt|dddtjid}t||d<d|d <|S) Nexpiresr)daystzinfo)rpublic cache-control)r&rrrrrrr)r!rr&rr1rrrr$Bs  zOneDayCache.update_headersNr,)r-r.r/__doc__r$rrrrr0<sr0c@s.eZdZdZdddZdd d ZdddZdS) ExpiresAfterz; Cache **all** requests for a defined time period. kwr rNonecKstdi||_dS)Nr)rr )r!r:rrr__init__UszExpiresAfter.__init__rr r#cCst|j}t|ddS)Nr6)r1r7)rr r)r!rr1rrrr$Xs zExpiresAfter.update_headersrcCsd}||jS)Nz:110 - Automatically cached for %s. Response might be stale)r )r!rtmplrrrr"\s zExpiresAfter.warningN)r:r rr;r,r+)r-r.r/r8r<r$r"rrrrr9Ps   r9c@s,eZdZdZhdZd ddZdd d Zd S) LastModifieda If there is no Expires header already, fall back on Last-Modified 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. > ,-respr rr#c Cs|j}d|vr iSd|vr|ddkriS|j|jvriSd|vs%d|vr'iSt|d}|dus3Jt|dd}t|d}|durHiSt}td||}|t|}tdt |dd } | |krjiS|| } dt t t | iS) Nr1r7r6rz last-modifiedr4r iQ) r&statuscacheable_by_default_statusesrrrrtimemaxminstrftimeTIME_FMTgmtime) r!rJr& time_tupler last_modifiedr current_ager freshness_lifetimer1rrrr$|s.    zLastModified.update_headersrcCsdSrr)r!rJrrrr"szLastModified.warningN)rJr rr#)rJr rr)r-r.r/r8rMr$r"rrrrr>as   r>r)r rrrrr)rrrr) __future__rrrNrrr email.utilsrrrtypingr r r urllib3r rRrrrr0r9r>rrrrs    !