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Antonio
Asked: 2013-08-08 01:57:31 +0800 CST

How to change URL parameter using transparent proxy

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I have a subnet of computers connected to Internet through a router (which could be a HTTP proxy as well).

My goal is to change URL parameter for a one single URL.

If users go to http://www.google.com/ or to http://www.google.com/?hl=en, in both cases they should see content from http://www.google.com/?hl=fr

Is it possible to do this using url rewriting in apache config? What other approaches could become the easiest way to achieve the goal?

Update: google.com is used just an example, that's not the case.

apache-2.2

1 Answers

  1. You can use SQUID, which is a more commonly used as a proxy, to accomplish what you are attempting. The url_rewrite_program option allows for requests to be sent to a script for rewriting.

    The following script would substitute the url in the manor you describe:

    #!/usr/bin/perl

while (<>) {
        @line = split;
        $_ = $line[0];

        if (m|http://google.com/\?hl=en|) {
                # do some replacement work
                $_ =~s|\?hl=en|\?hl=fr|g;
                print $_,"\n";
        } else {
                # send the request directly
                print $_;
        }
}

    If you prefer to use apache, it sounds like it can be done with a combination of mod_proxy and mod_rewrite. See this page on apache.org for a tutorial.

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