On Wed, Oct 24, 2012 at 10:35 AM, Søren Schrøder <sch@xxxxxxxx> wrote:
> Greetings apache users - I hope I selected the right list for this question:
>
>
> I have a wierd mod_rewrite problem, that I need new eyes on.
>
> What I try to do accomplish:
>
> I am implementing “Userdirs” using mod_rewrite, with users in LDAP
>
> The filepath is fetched from LDAP using a perl map program (with
> ram-caching, for fast response, the programs does 20k responses in
> 0.2s, so it’s not a bottleneck)
>
> Mod_rewrite config:
>
>
> RewriteEngine on
> RewriteLog /var/log/rewriter-log
> RewriteLogLevel 9
>
> #userdir via mod-rewrite via ldap via perl
> RewriteMap lowercase int:tolower
> # rewrite script with ldap lookup
> RewriteMap uid-til-user prg:/home/scripts/users.homepage.pl
> # rewrite on host match
> RewriteCond ${lowercase:%{HTTP_HOST}|NONE} ^users\.example\.tld$
> #get userid and path and rewrite
> RewriteRule ^/~(.*?)/(.*?)$ /${uid-til-user:$1|fejl}$2
You left one out:
http://httpd.apache.org/docs/2.2/mod/mod_rewrite.html#rewritelock
>
>
> I have a simple static HTML page, with 20 images
>
> <pre>
>
> 1<img src="image1.jpg">
>
> 2<img src="image2.jpg">
>
> …etc…
>
> 19<img src="image19.jpg">
>
> 20<img src="image20.jpg">
>
> </pre>
>
>
> Fetching this page gives this rewritelog (| cut -d"/" -f4- for shorter line)
>
> sid#80161a730][rid#8017ca0a0/initial] (2) init rewrite engine with
> requested uri /~ccc2404/example/image11.jpg
>
> sid#80161a730][rid#8017ca0a0/initial] (3) applying pattern
> '^/~(.*?)/(.*?)$' to uri '/~ccc2404/example/image11.jpg'
>
> sid#80161a730][rid#8017c80a0/initial] (2) rewrite
> '/~ccc2404/example/image9.jpg' -> '/2404/example/image9.jpg'
>
> sid#80161a730][rid#8017c80a0/initial] (2) local path result:
> /2404/example/image9.jpg
>
> sid#80161a730][rid#8017c80a0/initial] (2) prefixed with document_root
> to /home/www/data/2404/example/image9.jpg
>
> sid#80161a730][rid#8017ce0a0/initial] (2) rewrite
> '/~ccc2404/example/image10.jpg' ->
> '//mail/7/1/0/1/0/442//web/ccc/mail/7/1/0/1/0/442//web/ccc2404/example/image10.jpg'
>
> sid#80161a730][rid#8017c80a0/initial] (1) go-ahead with
> /home/www/data/2404/example/image9.jpg [OK]
>
>
>
> image9 is loaded fine !
>
>
>
> then comes TWO inits with SAME rid (8017c80a0)
>
>
>
> the map program returns
>
> //mail/7/1/0/1/0/442//web/ccc/mail/7/1/0/1/0/442//web/ccc2404/
> //mail/7/1/0/1/0/442//web/ccc/mail/7/1/0/1/0/442//web/ccc2404/
>
> But somehow the two answers get “mixed”
>
> '/~ccc2404/example/image13.jpg' -> '/ml7101042/eb/ccc2404/example/image13.jpg'
>
> '/~ccc2404/example/image18.jpg' ->
> '//ai//////4/w/mail/7/1/0/1/0/442//web/ccc2404/example/image18.jpg'
>
>
>
> Full log here:
>
>
>
> sid#80161a730][rid#8017c80a0/initial] (2) init rewrite engine with
> requested uri /~ccc2404/example/image13.jpg
>
> sid#80161a730][rid#8017c80a0/initial] (2) init rewrite engine with
> requested uri /~ccc2404/example/image18.jpg
>
> sid#80161a730][rid#8017c80a0/initial] (3) applying pattern
> '^/~(.*?)/(.*?)$' to uri '/~ccc2404/example/image18.jpg'
>
> sid#80161a730][rid#8017c80a0/initial] (3) applying pattern
> '^/~(.*?)/(.*?)$' to uri '/~ccc2404/example/image13.jpg'
>
> sid#80161a730][rid#8017c80a0/initial] (2) rewrite
> '/~ccc2404/example/image13.jpg' ->
> '/ml7101042/eb/ccc2404/example/image13.jpg'
>
> sid#80161a730][rid#8017c80a0/initial] (2) local path result:
> /ml7101042/eb/ccc2404/example/image13.jpg
>
> sid#80161a730][rid#8017c80a0/initial] (2) prefixed with document_root
> to /home/www/data/ml7101042/eb/ccc2404/example/image13.jpg
>
> sid#80161a730][rid#8017c80a0/initial] (1) go-ahead with
> /home/www/data/ml7101042/eb/ccc2404/example/image13.jpg [OK]
>
> sid#80161a730][rid#8017c80a0/initial] (2) rewrite
> '/~ccc2404/example/image18.jpg' ->
> '//ai//////4/w/mail/7/1/0/1/0/442//web/ccc2404/example/image18.jpg'
>
> sid#80161a730][rid#8017c80a0/initial] (2) local path result:
> //ai//////4/w/mail/7/1/0/1/0/442//web/ccc2404/example/image18.jpg
>
> sid#80161a730][rid#8017c80a0/initial] (2) prefixed with document_root
> to /home/www/data/ai/4/w/mail/7/1/0/1/0/442/web/ccc2404/example/image18.jpg
>
> sid#80161a730][rid#8017c80a0/initial] (1) go-ahead with
> /home/www/data/ai/4/w/mail/7/1/0/1/0/442/web/ccc2404/example/image18.jpg
> [OK]
>
>
>
> Why does this happen ? How is “rid” calculated ?
>
>
>
> And How do I fix the problem ?
>
>
>
> Any hints is appreciated – I am kind of stuck here.
>
>
>
> /Søren Schrøder
>
>
>
> --
> Søren Schrøder.
> Obey Gravity - It's the law !
>
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