mod_rewrite/mod_header/mod

mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:01:29 von Josh Konkol

Dear Apache Guru's I need your help!!

What I need to do is take the key:values in a cookie and turn them into
http headers. Using a combination of mod_rewrite, mod_header & mod_proxy
I've come up with a solution but the headers aren't being created.

Here's what I have in my httpd.conf file:

RewriteEngine on
RewriteLog "/tmp/rewrite.log"
RewriteLogLevel 9
RewriteRule ^(.*)&(.*)$ $1&$2 [S=1]
RewriteRule (.*) $1&%{HTTP_COOKIE}
# If there's a '; ' then there is more than one variable left
RewriteRule ^(.*);.(.*)=(.*)$ $1 [E=$2:$3,N]
# Now there's only one variable left
RewriteRule ^(.*)&(.*)=(.*)$ $1 [E=$2:$3]
RewriteRule ^(.*)&$ $1
RewriteRule ^/(.*)$ /done$1 [R]

Header add sm_user "%{smuser}e" env=smuser
Header add goHierId %{goHierId}e env=goHierId
Header add sessionid %{sessionid}e env=sessionid
Header add foo "bar"

ProxyPass /doneHomeCostEstimator
http://wsapp01t.guidehome.com/HomeCostEstimator
ProxyPassReverse /doneHomeCostEstimator
http://wsapp01t.guidehome.com/HomeCostEstimator

The page I'm directing to is a .jsp which displays the set http headers
and the sm_user & goHierId don't show up there.

Is there any issue with setting a http header with mod_header and then
proxying that request ??

Any help is appreciated !!!!

Josh

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Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:16:25 von Bill Stoddard

Josh Konkol wrote:
> Dear Apache Guru's I need your help!!
>
> What I need to do is take the key:values in a cookie and turn them into
> http headers. Using a combination of mod_rewrite, mod_header & mod_proxy
> I've come up with a solution but the headers aren't being created.
>
> Here's what I have in my httpd.conf file:
>
> RewriteEngine on
> RewriteLog "/tmp/rewrite.log"
> RewriteLogLevel 9
> RewriteRule ^(.*)&(.*)$ $1&$2 [S=1]
> RewriteRule (.*) $1&%{HTTP_COOKIE}
> # If there's a '; ' then there is more than one variable left
> RewriteRule ^(.*);.(.*)=(.*)$ $1 [E=$2:$3,N]
> # Now there's only one variable left
> RewriteRule ^(.*)&(.*)=(.*)$ $1 [E=$2:$3]
> RewriteRule ^(.*)&$ $1
> RewriteRule ^/(.*)$ /done$1 [R]
>
> Header add sm_user "%{smuser}e" env=smuser
> Header add goHierId %{goHierId}e env=goHierId
> Header add sessionid %{sessionid}e env=sessionid
> Header add foo "bar"
>
> ProxyPass /doneHomeCostEstimator
> http://wsapp01t.guidehome.com/HomeCostEstimator
> ProxyPassReverse /doneHomeCostEstimator
> http://wsapp01t.guidehome.com/HomeCostEstimator
>
> The page I'm directing to is a .jsp which displays the set http headers
> and the sm_user & goHierId don't show up there.
>
> Is there any issue with setting a http header with mod_header and then
> proxying that request ??
>
> Any help is appreciated !!!!
>
> Josh
>

The Header directive will only add headers to the response. Check out
the "RequestHeader append" directive in Apache httpd 2.0.

Bill

Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:22:56 von Kwindla Hultman Kramer

Josh Konkol writes:

> Is there any issue with setting a http header with mod_header and then
> proxying that request ??

Assuming you're using Apache 1.3, there is an issue: mod_header and
mod_proxy don't play well together.

I maintain a set of patches that provide some header-manipulation
directives for 1.3.x mod_proxy:

http://allafrica.com/tools/apache/mod_proxy/

By the way, your cookie-deconstructing rewrite rules are pretty slick!

Yours,
Kwin

Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:22:56 von Kwindla Hultman Kramer

Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:34:43 von Josh Konkol

Kwin,

Thanks for the quick response !! Problem is I am using Apache/2.0.44
not 1.3. Have you had any experience with 2 or where the issues fixed
in that version ?

Josh

Kwindla Hultman Kramer wrote in
news:15980.51696.619781.290530@thel.allafrica.com:

>
> Josh Konkol writes:
>
> > Is there any issue with setting a http header with mod_header and
> > then proxying that request ??
>
> Assuming you're using Apache 1.3, there is an issue: mod_header and
> mod_proxy don't play well together.
>
> I maintain a set of patches that provide some header-manipulation
> directives for 1.3.x mod_proxy:
>
> http://allafrica.com/tools/apache/mod_proxy/
>
> By the way, your cookie-deconstructing rewrite rules are pretty slick!
>
> Yours,
> Kwin
>

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Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:34:43 von Josh Konkol

Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:51:54 von Josh Konkol

Ok here is an update !! Thanks to Kwin's input I started looking more
closely at what I am trying to do. If i use the RequestHeader directive
instead of the Header directive I can see the http headers created on my
..jsp page, but they end up with NULL values because RequestHeader does
NOT accept the %{env}e environment variable as a value.

Anyone have any ideas on how I can overcome this ?

Thanks in advance !!

Josh

Josh Konkol wrote in
news:Xns933A7042CDBF0jkonkolguidemailcom@80.91.224.249:

> Dear Apache Guru's I need your help!!
>
> What I need to do is take the key:values in a cookie and turn them
> into http headers. Using a combination of mod_rewrite, mod_header &
> mod_proxy I've come up with a solution but the headers aren't being
> created.
>
> Here's what I have in my httpd.conf file:
>
> RewriteEngine on
> RewriteLog "/tmp/rewrite.log"
> RewriteLogLevel 9
> RewriteRule ^(.*)&(.*)$ $1&$2 [S=1]
> RewriteRule (.*) $1&%{HTTP_COOKIE}
> # If there's a '; ' then there is more than one variable left
> RewriteRule ^(.*);.(.*)=(.*)$ $1 [E=$2:$3,N]
> # Now there's only one variable left
> RewriteRule ^(.*)&(.*)=(.*)$ $1 [E=$2:$3]
> RewriteRule ^(.*)&$ $1
> RewriteRule ^/(.*)$ /done$1 [R]
>
> Header add sm_user "%{smuser}e" env=smuser
> Header add goHierId %{goHierId}e env=goHierId
> Header add sessionid %{sessionid}e env=sessionid
> Header add foo "bar"
>
> ProxyPass /doneHomeCostEstimator
> http://wsapp01t.guidehome.com/HomeCostEstimator
> ProxyPassReverse /doneHomeCostEstimator
> http://wsapp01t.guidehome.com/HomeCostEstimator
>
> The page I'm directing to is a .jsp which displays the set http
> headers and the sm_user & goHierId don't show up there.
>
> Is there any issue with setting a http header with mod_header and then
> proxying that request ??
>
> Any help is appreciated !!!!
>
> Josh
>
>
> ------------------------------------------------------------ ---------
> The official User-To-User support forum of the Apache HTTP Server
> Project. See for more
> info. To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> " from the digest: users-digest-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>

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Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 18:51:54 von Josh Konkol

Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 20:46:19 von Josh Konkol

Thanks Bill you are correct. I changed it to RequestHeader and now I can
see the headers being created. Problem is RequestHeader doesn't accept
the ${env}e value and instead puts in a value.

Any ideas ??

Josh

Bill Stoddard wrote in
news:3E6CC869.3030708@wstoddard.com:

> Josh Konkol wrote:
>> Dear Apache Guru's I need your help!!
>>
>> What I need to do is take the key:values in a cookie and turn them
>> into http headers. Using a combination of mod_rewrite, mod_header &
>> mod_proxy I've come up with a solution but the headers aren't being
>> created.
>>
>> Here's what I have in my httpd.conf file:
>>
>> RewriteEngine on
>> RewriteLog "/tmp/rewrite.log"
>> RewriteLogLevel 9
>> RewriteRule ^(.*)&(.*)$ $1&$2 [S=1]
>> RewriteRule (.*) $1&%{HTTP_COOKIE}
>> # If there's a '; ' then there is more than one variable left
>> RewriteRule ^(.*);.(.*)=(.*)$ $1 [E=$2:$3,N]
>> # Now there's only one variable left
>> RewriteRule ^(.*)&(.*)=(.*)$ $1 [E=$2:$3]
>> RewriteRule ^(.*)&$ $1
>> RewriteRule ^/(.*)$ /done$1 [R]
>>
>> Header add sm_user "%{smuser}e" env=smuser
>> Header add goHierId %{goHierId}e env=goHierId
>> Header add sessionid %{sessionid}e env=sessionid
>> Header add foo "bar"
>>
>> ProxyPass /doneHomeCostEstimator
>> http://wsapp01t.guidehome.com/HomeCostEstimator
>> ProxyPassReverse /doneHomeCostEstimator
>> http://wsapp01t.guidehome.com/HomeCostEstimator
>>
>> The page I'm directing to is a .jsp which displays the set http
>> headers and the sm_user & goHierId don't show up there.
>>
>> Is there any issue with setting a http header with mod_header and
>> then proxying that request ??
>>
>> Any help is appreciated !!!!
>>
>> Josh
>>
>
> The Header directive will only add headers to the response. Check out
> the "RequestHeader append" directive in Apache httpd 2.0.
>
> Bill
>
>

Re: mod_rewrite/mod_header/mod_proxy problem

am 10.03.2003 22:23:58 von Bill Stoddard

Josh Konkol wrote:
> Thanks Bill you are correct. I changed it to RequestHeader and now I can
> see the headers being created. Problem is RequestHeader doesn't accept
> the ${env}e value and instead puts in a value. >
> Any ideas ??

Sure it does (perhaps the doc is wrong). I've tested this recently and
it works fine.

RequestHeader append SSL_SESSION_ID %{SSL_SESSION_ID}e
RequestHeader append SSL_VERSION_INTERFACE %{SSL_VERSION_INTERFACE}e
RequestHeader append SSL_CIPHER %{SSL_CIPHER}e
RequestHeader append SSL_SERVER_S_DN %{SSL_SERVER_S_DN}e
RequestHeader append SSL_CIPHER_USEKEYSIZE %{SSL_CIPHER_USEKEYSIZE}e

Bill

Re: mod_rewrite/mod_header/mod_proxy problem

am 11.03.2003 16:55:29 von Josh Konkol

Once again Bill is correct.

If I use setenv to set an environment variable it works. What doesn't
appear to work are the environment variables set from [e=key:value] on a
rewriterule line. I can see the value being set in the rewrite log.

Any ideas ??

Bill Stoddard wrote in
news:3E6D026E.3050507@wstoddard.com:

> Josh Konkol wrote:
>> Thanks Bill you are correct. I changed it to RequestHeader and now I
>> can see the headers being created. Problem is RequestHeader doesn't
>> accept the ${env}e value and instead puts in a value. >
>> Any ideas ??
>
> Sure it does (perhaps the doc is wrong). I've tested this recently and
> it works fine.
>
> RequestHeader append SSL_SESSION_ID %{SSL_SESSION_ID}e
> RequestHeader append SSL_VERSION_INTERFACE
> %{SSL_VERSION_INTERFACE}e RequestHeader append SSL_CIPHER
> %{SSL_CIPHER}e RequestHeader append SSL_SERVER_S_DN
> %{SSL_SERVER_S_DN}e RequestHeader append SSL_CIPHER_USEKEYSIZE
> %{SSL_CIPHER_USEKEYSIZE}e
>
> Bill
>
>

Re: mod_rewrite/mod_header/mod_proxy problem

am 13.03.2003 21:04:16 von Bill Stoddard

Josh Konkol wrote:
> Once again Bill is correct.
>
> If I use setenv to set an environment variable it works. What doesn't
> appear to work are the environment variables set from [e=key:value] on a
> rewriterule line. I can see the value being set in the rewrite log.
>
> Any ideas ??
>

Nothing obvious jumps out at me. I don't have a lot of time to spend on
this now so you should probably open a PR in bugzilla and include a very
simple test case demonstrating the failure. Someone will eventually get
around to debugging it.

Bill