B
š•Reæ ã @ sŽ d dl Z d dlZd dlmZmZmZ d dlmZmZ dZddd„Z dd„ Z
G d d
„ d
e ƒZ G d d „ d e ƒZ
G d
d„ de ƒZG dd„ de ƒZdS )é N)Ú
formatdateÚ parsedateÚ parsedate_tz)ÚdatetimeÚ timedeltaz%a, %d %b %Y %H:%M:%S GMTc C s |p
t ¡ }|| S )N)r Úutcnow)ÚdeltaÚdate© r
ú’/builddir/build/BUILDROOT/alt-python37-pip-20.2.4-6.el8.x86_64/opt/alt/python37/lib/python3.7/site-packages/pip/_vendor/cachecontrol/heuristics.pyÚ expire_after s r c C s t t | ¡ ¡ƒS )N)r ÚcalendarÚtimegmÚ timetuple)Údtr
r
r Údatetime_to_header s r c @ s$ e Zd Zdd„ Zdd„ Zdd„ ZdS )Ú
BaseHeuristicc C s dS )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"r
)ÚselfÚresponser
r
r Úwarning s zBaseHeuristic.warningc C s i S )zïUpdate 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 r r
r
r Úupdate_headers! s z BaseHeuristic.update_headersc C s@ | |¡}|r<|j |¡ | |¡}|d k r<|j d|i¡ |S )NÚWarning)r ÚheadersÚupdater )r r Zupdated_headersZwarning_header_valuer
r
r Úapply* s
zBaseHeuristic.applyN)Ú__name__Ú
__module__Ú __qualname__r r r r
r
r
r r s r c @ s e Zd ZdZdd„ ZdS )Ú OneDayCachezM
Cache the response by providing an expires 1 day in the
future.
c C sR i }d|j krNt|j d ƒ}ttddt|d d… Ž d}t|ƒ|d< d|d< |S ) NÚexpiresr é )Údaysé )r Úpublicz
cache-control)r r r r r r )r r r r r r
r
r r < s
zOneDayCache.update_headersN)r r r Ú__doc__r r
r
r
r r 6 s r c @ s( e Zd ZdZdd„ Zdd„ Zdd„ ZdS ) Ú ExpiresAfterz;
Cache **all** requests for a defined time period.
c K s t f |Ž| _d S )N)r r )r Úkwr
r
r Ú__init__L s zExpiresAfter.__init__c C s t | jƒ}t|ƒddœS )Nr# )r z
cache-control)r r r )r r r r
r
r r O s
zExpiresAfter.update_headersc C s d}|| j S )Nz:110 - Automatically cached for %s. Response might be stale)r )r r Útmplr
r
r r S s zExpiresAfter.warningN)r r r r$ r' r r r
r
r
r r% G s r% c @ s: e Zd ZdZdddddddd d
d d h Zd
d„ Zdd„ ZdS )Ú LastModifiedaÁ
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.
éÈ éË éÌ éÎ i, i- i” i• iš iž iõ c
C sâ |j }d|kri S d|kr*|d dkr*i S |j| jkr:i S d|ksJd|krNi S t t|d ƒ¡}t|d ƒ}|d ks||d kr€i S t ¡ }td|| ƒ}|t |¡ }tdt |d dƒƒ}||krÄi S || } dt
t t | ¡¡iS ) Nr z
cache-controlr# r z
last-modifiedr é
i€Q )
r ÚstatusÚ cacheable_by_default_statusesr
r r r ÚtimeÚmaxÚminÚstrftimeÚTIME_FMTÚgmtime)
r Úrespr r Z
last_modifiedÚnowÚ current_ager Úfreshness_lifetimer r
r
r r h s* zLastModified.update_headersc C s d S )Nr
)r r7 r
r
r r † s zLastModified.warningN)r r r r$ r0 r r r
r
r
r r) X s r) )N)r
r1 Ú email.utilsr r r r r r5 r r Úobjectr r r% r) r
r
r
r Ú s
"