Le 18/03/2019 à 18:36, Muggeridge, Matt a écrit :
See the documentation on mod_substitute.html

I was following this thread and the doc says

"expr=" substitution values were added in 2.5.1

But my install is /2.4.38. I have installed it with brew on a Mac but I can't find a dev version. What can I do? Must I install it from source?

Thanks in advance

Luis

<https://httpd.apache.org/docs/trunk/en/mod/mod_substitute.html>.  It describes that if you want to access environment variables, then the substitution must begin with ‘expr=’.

The doc provides an example for substituting with variables:

*Expression Example*

<*Location*"/">

*AddOutputFilterByType*SUBSTITUTE text/html

*Substitute*"s/example.com/expr=%{HTTP:HOST}/i"

*Substitute*"s/Hello, (\S+)/expr=Hello from %{REQUEST_URI}, \$1/i"

</*Location*>

Hazarding a guess, you could try prefixing your substituted string with ‘expr=’, as follows:

*Substitute*"s|src=\"(.*?)\"|expr=src=\"%{st}e/lp/$1\"|i"

I’m just reading from the docs and have not tried it myself.

Matt.

*From:*Flaviu Radulescu <flaviu.radule...@lumminary.com.INVALID>
*Sent:* Friday, 15 March 2019 7:47 PM
*To:* users@httpd.apache.org
*Subject:* Help configure a Reverse proxy with Substitute

Dear community,

I need an advice on how to configure a reverse proxy in which I need to replace the <img src=""> tag from the response html with an ENV variable defined previously. How do you recommend me to do this?

I tried with substitute, but unfortunately doesn't seem to support variables.

The variable I am setting with the command: SetEnvIf Request_URI "/lp\/([a-zA-Z0-9]*)" st=$1.example.com

and now I would like to use the {st} variable in the substitute

Substitute "s|src=\"(.*?)\"|src=\"%{st}e/lp/$1\"|i"

I tried with %{st}e , ${st} in any combination it doesn't work.

Is there any way in which I can use e previous defined variable in rewriting the proxy response HTML?

Thank you,

**

*---*

*FLAVIU RADULESCU***| Lumminary | lumminary.com <https://lumminary.com/>Image removed by sender. https://lumminary.com/1x1.png?t=flv-otlk


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