Re: Apache 2.4: Mod Cache: authorization required

Nicolas Daniels <nicolas.daniels@xxxxxxxx> · Mon, 18 Feb 2013 12:54:20 +0100

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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