rewrite with regex to use proxy_pass

[Alexandre]

Hello,

I have a question, I wish I could parser a url and retrieve fields to
inject them to another server.

However, I can not. Here is my test:

URL :
http://mywebsite.net/folder1/folder2/hit.php?s=11111&s2=&p=home::index&x2=[box]&apvr=[5.0]&idclient=&na=&ref=

location ~ ^/folder1/folder2/ {

        rewrite
        ^/folder1/folder2/hit.php?s=11111&s2=&p=(.*)::(.*)&x2=[box]&apvr=[5.0]&idclient=&na=&ref= /index.php?arg1=$1&arg2=$2
        break;

       proxy_pass http://myinternalsrv.localdom;
    }

In my test, I want to retrieve the pattern "home" and "index" but it
does not work. Would you have an idea?

Thank you very much for your information.

Alex.