See the documentation on
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="" style="background:yellow;mso-highlight:yellow">expr=src="">
I’m just reading from the docs and have not tried it myself.
Matt.
From: Flaviu Radulescu <flaviu.radulescu@xxxxxxxxxxxxx.INVALID>
Sent: Friday, 15 March 2019 7:47 PM
To: users@xxxxxxxxxxxxxxxx
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="">
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
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