Apache mod_jk SetEnvIf negative look ahead not working

[as2 <ag...@spamcorptastic.com>]

Hi,

I am trying to add a rule .. some thing like this


<LocationMatch "/app/">
  SetHandler jakarta-servlet
  SetEnvIf REQUEST_URI "\.(jsp|htm?)$" JK_WORKER_NAME=default
  SetEnvIf REQUEST_URI ^(/app/dir/([^/]*)/(?!jsp))   no-jk

</LocationMatch> 

I am having problem with this line
SetEnvIf REQUEST_URI ^(/app/dir/([^/]*)/(?!jsp))    no-jk

I want to use no-jk only when the request URI does not contain
/app/dir/*/jsp/ path. This works with ruby, but now working with apache
mod_jk. Is there a way to make negative expression work in mod_jk

And also I would like to add another expression that checks if the folder
(that does not contain /jsp/ folder)  contains file with jsp extenstion so
that use JK_WORKER_NAME=$1 instead of no-jk

Thanks


-- 
View this message in context: http://www.nabble.com/Apache-mod_jk--SetEnvIf-negative-look-ahead-not-working-tp24141543p24141543.html
Sent from the Tomcat - User mailing list archive at Nabble.com.


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org

Re: Apache mod_jk SetEnvIf negative look ahead not working

[Rainer Jung <ra...@kippdata.de>]

Hi,

On 22.06.2009 06:10, as2 wrote:
> Hi,
> 
> I am trying to add a rule .. some thing like this
> 
> 
> <LocationMatch "/app/">
>   SetHandler jakarta-servlet
>   SetEnvIf REQUEST_URI "\.(jsp|htm?)$" JK_WORKER_NAME=default
>   SetEnvIf REQUEST_URI ^(/app/dir/([^/]*)/(?!jsp))   no-jk
> 
> </LocationMatch> 
> 
> I am having problem with this line
> SetEnvIf REQUEST_URI ^(/app/dir/([^/]*)/(?!jsp))    no-jk
> 
> I want to use no-jk only when the request URI does not contain
> /app/dir/*/jsp/ path. This works with ruby, but now working with apache
> mod_jk. Is there a way to make negative expression work in mod_jk

Did you try with the latest jk version (1.2.28)?

Not sure, what exactly works with ruby, but mod_jk doesn't know anything
about SetEnvIf and negative look ahead. It only checks, whether the
"no-jk" Apache environment variable is set, and if so, it doesn't
forward the request and instead lets Apache handle it itself.

You can check the value of "no-jk" by adding %{no-jk}e to your LogFormat
used in the CustomLog.

> And also I would like to add another expression that checks if the folder
> (that does not contain /jsp/ folder)  contains file with jsp extenstion so
> that use JK_WORKER_NAME=$1 instead of no-jk

You can use mod_rewrite for such things. Mod_rewrite can check for file
existence and can also use back references when setting env vars.

Regards,

Rainer

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org

Re: Apache mod_jk SetEnvIf negative look ahead not working

[André Warnier <aw...@ice-sa.com>]

as2 wrote:
> Hi,
> 
> I am trying to add a rule .. 

Try this :

# First, all URLs that start with "/app/" and end in either .jsp, .htm
# or .html are forwarded to Tomcat
<LocationMatch "^/app/.+\.(jsp|html?)$">
   SetHandler jakarta-servlet
</LocationMatch>

# But, we don't want that if it's inside of "/app/dir/"
<LocationMatch "^/app/dir/">
   SetHandler none
</LocationMatch>

# Except if it is inside of a "/jsp/" subdir of "/app/dir",
# then we do want it anyway
<LocationMatch "^/app/dir/.*/jsp/">
   SetHandler jakarta-servlet
</LocationMatch>

You may need to modify that a bit, according to what you want exactly 
(which is not so clear in your original question).

But the base is :
- <Location> and <LocationMatch> are applied one after the other,  in 
the order in which they appear in the configuration file.
(See : http://httpd.apache.org/docs/2.2/sections.html )
- "SetHandler jakarta-servlet" makes it so that all applicable URLs are 
  proxied to Tomcat
- "SetHandler none" cancels the effect of a previous "SetHandler 
jakarta-servlet" and returns to the default Apache handling.
(See : http://httpd.apache.org/docs/2.2/mod/core.html#sethandler )

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org