Forum Discussion

Nimbostratus

Sep 28, 2016

IRules to pass through request

Hi All, I am using below rewrite rule with pass through in Apache webserver which is working fine. Now my requirement is not to use Apache webserver and route the traffic directly from F5 to app...

application delivery

iRules

Kai_Wilke

MVP

Sep 29, 2016

Hi Ashish,

you may try the iRule below as a startingpoint to replace your existing mod_rewrite functionality.

The iRule will rewrite a client side request of...

http(s)://www.domain.tld/path1/path2?query=1

... to a server side request of ...

http(s)://www.domain.tld/content/obi/path1/en/path2.html?query=1

... or ...

http(s)://www.domain.tld/path1/path2/path3

... to ...

http(s)://www.domain.tld/content/obi/path1/en/path2/path3.html

iRule:

when HTTP_REQUEST { 

     Replacement for QSA option

    if { [HTTP::query] ne "" } then {
        set input_query "?[HTTP::query]"
    } else {
        set input_query ""
    }

     Replacement for RewriteRule

    set root_folder [substr [HTTP::path] 1 "/"]
    set remaining_path [string range [HTTP::path] [expr { [string length $root_folder]+2 }] end]
    HTTP::uri "/content/obi/${root_folder}/en/${remaining_path}.html${input_query}"

}

Note: You may also post any previous RewriteRules to see if certain URIs requiring exemptions for the given rewrite.

Note: To assist you with the