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Posted to users@httpd.apache.org by "Sergey N. Romanov" <sr...@innter.net> on 2007/02/23 14:56:06 UTC
[users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Hi,
We need system which will make these things :
- user requested url like http://our.server/XYZ/page.html
- rewrite engine should map /XYZ/ to real server name and make proxy
request to http://another.server/page.html
- then output filter should replace any specified content
Sound like very easy... But for any reason this do not work :-(
We have these lines in our vhost config :
ExtFilterDefine fltr mode=output intype=text/html cmd="filter.pl"
SetOutputFilter fltr
RewriteEngine on
RewriteMap hpm prg:map.pl
RewriteRule ^(.+)$ ${hpm:$1} [P,L]
Without rewrite engine filter works fine and I can see that content is
changed by filter. But when rewrite engine is activated, then I can see,
that content is not changed.
Can someone explain me why this do not work?
--
Best regards,
Sergey N. Romanov
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by "Sergey N. Romanov" <sr...@innter.net>.
> have you tried [P,L,T=text/html]
This do not work.
--
Best regards,
Sergey N. Romanov
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by matt farey <ma...@gmail.com>.
have you tried [P,L,T=text/html]
Sergey N. Romanov wrote:
> Hi,
>
> We need system which will make these things :
> - user requested url like http://our.server/XYZ/page.html
> - rewrite engine should map /XYZ/ to real server name and make proxy
> request to http://another.server/page.html
> - then output filter should replace any specified content
>
> Sound like very easy... But for any reason this do not work :-(
>
> We have these lines in our vhost config :
>
> ExtFilterDefine fltr mode=output intype=text/html cmd="filter.pl"
> SetOutputFilter fltr
>
> RewriteEngine on
> RewriteMap hpm prg:map.pl
> RewriteRule ^(.+)$ ${hpm:$1} [P,L]
>
> Without rewrite engine filter works fine and I can see that content is
> changed by filter. But when rewrite engine is activated, then I can see,
> that content is not changed.
>
> Can someone explain me why this do not work?
>
>
>
--
Matthew Farey
Web App Sec.
25 The Polygon, Southampton, Hants, SO15 2BP, UK
Phone +44(0)2380 631449
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by Nick Kew <ni...@webthing.com>.
On Fri, 23 Feb 2007 22:15:01 +0600
"Sergey N. Romanov" <sr...@innter.net> wrote:
> Nick Kew wrote:
>
> > You want mod_proxy_html for that.
> > See also http://www.apachetutor.org/admin/reverseproxies
>
> Yes, I see. But this is not exactly that we need.
> In this example I can see that we should specify ProxyPass and
> ProxyHTMLURLMap for each /XYZ/. Right?
Or else use a regexp for /([^/]+)/ to catch them all.
> I'll make filter module with mod_perl and hope that this will solve a
> problem.
Feel free to reinvent the wheel.
--
Nick Kew
Application Development with Apache - the Apache Modules Book
http://www.apachetutor.org/
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by "Sergey N. Romanov" <sr...@innter.net>.
Nick Kew wrote:
> You want mod_proxy_html for that.
> See also http://www.apachetutor.org/admin/reverseproxies
Yes, I see. But this is not exactly that we need.
In this example I can see that we should specify ProxyPass and
ProxyHTMLURLMap for each /XYZ/. Right? But we will have thousands of
/XYZ/. And in this case we should generate apache config some times a
day, reload apache and etc.
I'll make filter module with mod_perl and hope that this will solve a
problem.
--
Best regards,
Sergey N. Romanov
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by Nick Kew <ni...@webthing.com>.
On Fri, 23 Feb 2007 21:07:13 +0600
"Sergey N. Romanov" <sr...@innter.net> wrote:
> I'll try to explain...
You want mod_proxy_html for that.
See also http://www.apachetutor.org/admin/reverseproxies
--
Nick Kew
Application Development with Apache - the Apache Modules Book
http://www.apachetutor.org/
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by "Sergey N. Romanov" <sr...@innter.net>.
Pid wrote:
>> what you want with a real filter?
>
> or mod_proxy...
I'll try to explain...
User requested url like http://our.server/XYZ/page.html, we map XYZ to
real server address, get specified page from this server and send
received page to user.
Problem is that page can contain images and another things with / in
path, i.g. <img src="/any.image">, or <a href="/any.link">.
These things will be requested as http://our.server/any.image, i.e.
without /XYZ/ and we can not make correct mapping. As result users will
404 for images etc
Are you sure that mod_proxy will replace / with /XYZ/ ?
--
Best regards,
Sergey N. Romanov
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by "Sergey N. Romanov" <sr...@innter.net>.
Hi,
One more thing which I can't understand...
When I make request with any browser (even with lynx), then this do not
work... But when I make request with GET (script from perl lwp-request
package), then this work as should!!! I.e. content filtered. This make
me crazy.
Any ideas?!
--
Best regards,
Sergey N. Romanov
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by Pid <p...@pidster.com>.
Nick Kew wrote:
> On Fri, 23 Feb 2007 19:56:06 +0600
> "Sergey N. Romanov" <sr...@innter.net> wrote:
>
>> Without rewrite engine filter works fine and I can see that content is
>> changed by filter. But when rewrite engine is activated, then I can
>> see, that content is not changed.
>>
>> Can someone explain me why this do not work?
>
> Yep. mod_ext_filter is checking the intype before it has that
> information from the proxy. That's (an instance of) the
> problem mod_filter solves for you.
>
> Anyway, why are you using mod_ext_filter? Can't you do
> what you want with a real filter?
>
or mod_proxy...
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by "Sergey N. Romanov" <sr...@innter.net>.
Nick Kew wrote:
> Yep. mod_ext_filter is checking the intype before it has that
> information from the proxy.
Thanks for advice!
> Anyway, why are you using mod_ext_filter? Can't you do
> what you want with a real filter?
I have read mod_filter page at
http://httpd.apache.org/docs/2.2/mod/mod_filter.html
but I can't understand how to create real filter... This should apache
module? Right?
--
Best regards,
Sergey N. Romanov
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Re: [users@httpd] mod_rewrite + proxy requests + mod_exf_filter
Posted by Nick Kew <ni...@webthing.com>.
On Fri, 23 Feb 2007 19:56:06 +0600
"Sergey N. Romanov" <sr...@innter.net> wrote:
>
> Without rewrite engine filter works fine and I can see that content is
> changed by filter. But when rewrite engine is activated, then I can
> see, that content is not changed.
>
> Can someone explain me why this do not work?
Yep. mod_ext_filter is checking the intype before it has that
information from the proxy. That's (an instance of) the
problem mod_filter solves for you.
Anyway, why are you using mod_ext_filter? Can't you do
what you want with a real filter?
--
Nick Kew
Application Development with Apache - the Apache Modules Book
http://www.apachetutor.org/
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