* bug#526: Emacs 22, url package, problems with cache
@ 2008-07-03 10:25 Alexander Pohoyda
2008-07-07 12:36 ` Magnus Henoch
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Alexander Pohoyda @ 2008-07-03 10:25 UTC (permalink / raw
To: bug-gnu-emacs
The url-automatic-caching variable is nil by default, so cache is not written (even the cache directory is not created). However, if I manually provide "If-Modified-Since" header in HTTP request and the server responds with "Not Modified 304", the cache file is expected to exists and is accessed -- which leads to error.
Possible solution -- before accessing the cache file, check whether it exists (url-is-cached).
Alternatively, do not expect a cache to exist if url-automatic-caching is set to nil.
--
Alexander Pohoyda <alexander.pohoyda@gmx.net>
PGP Key fingerprint:
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^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#526: Emacs 22, url package, problems with cache
2008-07-03 10:25 bug#526: Emacs 22, url package, problems with cache Alexander Pohoyda
@ 2008-07-07 12:36 ` Magnus Henoch
2008-07-07 12:45 ` Processed: " Emacs bug Tracking System
2011-07-22 14:04 ` Julien Danjou
2011-09-11 17:11 ` Lars Magne Ingebrigtsen
2 siblings, 1 reply; 5+ messages in thread
From: Magnus Henoch @ 2008-07-07 12:36 UTC (permalink / raw
To: 526
reassign 526 emacs,url
thanks
I keep meaning to clean up and fix various things in the url package,
but now I _definitely_ don't have time. It would be nice if someone
else took a look at this.
Magnus
^ permalink raw reply [flat|nested] 5+ messages in thread
* Processed: Re: bug#526: Emacs 22, url package, problems with cache
2008-07-07 12:36 ` Magnus Henoch
@ 2008-07-07 12:45 ` Emacs bug Tracking System
0 siblings, 0 replies; 5+ messages in thread
From: Emacs bug Tracking System @ 2008-07-07 12:45 UTC (permalink / raw
To: Magnus Henoch; +Cc: Emacs Bugs, url #526
Processing commands for control@emacsbugs.donarmstrong.com:
> reassign 526 emacs,url
bug#526: Emacs 22, url package, problems with cache
Warning: Unknown package 'url'
bug reassigned from package `emacs' to `emacs,url'.
> thanks
Stopping processing here.
Please contact me if you need assistance.
Don Armstrong
(administrator, Emacs bugs database)
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#526: Emacs 22, url package, problems with cache
2008-07-03 10:25 bug#526: Emacs 22, url package, problems with cache Alexander Pohoyda
2008-07-07 12:36 ` Magnus Henoch
@ 2011-07-22 14:04 ` Julien Danjou
2011-09-11 17:11 ` Lars Magne Ingebrigtsen
2 siblings, 0 replies; 5+ messages in thread
From: Julien Danjou @ 2011-07-22 14:04 UTC (permalink / raw
To: Alexander Pohoyda; +Cc: 526
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On Thu, Jul 03 2008, Alexander Pohoyda wrote:
> The url-automatic-caching variable is nil by default, so cache is not
> written (even the cache directory is not created). However, if I manually
> provide "If-Modified-Since" header in HTTP request and the server responds
> with "Not Modified 304", the cache file is expected to exists and is
> accessed -- which leads to error.
>
> Possible solution -- before accessing the cache file, check whether it exists (url-is-cached).
> Alternatively, do not expect a cache to exist if url-automatic-caching is set to nil.
I'm not sure this is really a bug after all. If you send a
"If-Modified-Since" header, you have to already own a copy of the
content. If what you propose is to return an empty buffer if there's no
cache, that does not seems like the good solution neither. And I would
not see the point to re-request the URL without the IMS header neither.
304 code is only returned if the client has done a conditional request,
which should be the case *only* if it has a cached copy. Otherwise it's
no sense.
--
Julien Danjou
❱ http://julien.danjou.info
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^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#526: Emacs 22, url package, problems with cache
2008-07-03 10:25 bug#526: Emacs 22, url package, problems with cache Alexander Pohoyda
2008-07-07 12:36 ` Magnus Henoch
2011-07-22 14:04 ` Julien Danjou
@ 2011-09-11 17:11 ` Lars Magne Ingebrigtsen
2 siblings, 0 replies; 5+ messages in thread
From: Lars Magne Ingebrigtsen @ 2011-09-11 17:11 UTC (permalink / raw
To: Alexander Pohoyda; +Cc: 526
"Alexander Pohoyda" <alexander.pohoyda@gmx.net> writes:
> However, if I manually provide "If-Modified-Since" header in HTTP
> request and the server responds with "Not Modified 304", the cache
> file is expected to exists and is accessed -- which leads to error.
I don't think this is a bug. You've (manually) claimed to have a cached
copy of the item, and you don't -- so you should get an error, in my
opinion.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
^ permalink raw reply [flat|nested] 5+ messages in thread
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2008-07-03 10:25 bug#526: Emacs 22, url package, problems with cache Alexander Pohoyda
2008-07-07 12:36 ` Magnus Henoch
2008-07-07 12:45 ` Processed: " Emacs bug Tracking System
2011-07-22 14:04 ` Julien Danjou
2011-09-11 17:11 ` Lars Magne Ingebrigtsen
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