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Date: Mon, 18 Feb 2013 12:54:20 +0100
From: Nicolas Daniels <nicolas.daniels@swing.be>
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Subject: [users@httpd] Re: Apache 2.4: Mod Cache: authorization required

Hello,

Ok I figured out how to allow caching for authenticated urls: adding 
"Cache-Control" header with public option do the trick.

Now I still have the problem that the cache key is built upon the url 
BEFORE the rewrite occurs.

Is it possible to change this behavior ?

I tried with

AddOutputFilterByType  REWRITE;CACHE  text/html

But rewrite is not a filter (or I don't have the appropriate name).

Thanks,

Nicolas


On 14/02/2013 16:41, Nicolas Daniels wrote:
> Hi all,
>
> I'm trying hard to configure mod_cache with mod_cache_disk and apache 
> 2.4, without real success.
>
> I'm able to enable cache for public files (no authentication), but not 
> for private ones. From my understanding, setting |CacheQuickHandler to 
> off |should have done the trick, but it keeps complaining in the logs:
>
> [Thu Feb 14 15:20:18.997941 2013] [cache:debug] [pid 18018:tid 
> 140317277726464] mod_cache.c(1073): [client xxxxxxxx] AH00768: cache: 
> /file/files/test.txt not cached. Reason: Authorization required
>
> Looking around for a solution to this problem, I found also another 
> one: cache key is computed before rewrite rule applies, which will 
> lead to issues as I'm rewriting the logged use in the url.
>
> My config (part of):
>
> <DirectoryMatch "^/vsite/file/.*$">
> AuthType Digest
> AuthName "bla"
> # To cache credentials, put socache ahead of dbd here
> AuthDigestProvider socache dbd
> # Also required for caching: tell the cache to cache dbd lookups!
> AuthnCacheProvideFor dbd
> AuthnCacheContext blabla
>
> Require valid-user
> AuthDBDUserRealmQuery "SELECT digestpwd FROM user WHERE name= %s"
> </DirectoryMatch>
>
> RewriteCond %{REQUEST_METHOD} GET
> RewriteCond %{LA-U:REMOTE_USER} ([0-9]+)
> RewriteRule ^/file/(.*) /data/%1/$1 [L]
>
> <IfModule mod_cache.c>
> <IfModule mod_cache_disk.c>
> LogLevel cache:trace8
> CacheQuickHandler off
> CacheRoot /tmp/apachecache
> CacheEnable disk /
> CacheDefaultExpire 120
> CacheIgnoreURLSessionIdentifiers jsessionid JSESSIONID
> </IfModule>
> </IfModule>
>
> Any way to get around those problems ?
>
> Thanks a lot for your help !
>


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