Forum Discussion

matt1985_299432's avatar
matt1985_299432
Icon for Nimbostratus rankNimbostratus
Sep 12, 2017

Stream Content Rewrite

Hi,

I have a requirement to rewrite some content and mask this from the connecting client. I originally had this working with a re-write profile but couldn't figure out how to do other things in an IRULE with a rewrite profile.

So I have the following IRULE some content needs rewriting '/content/site' which appears to work OK however some content needs to stay as is "/content/preserve/preserve" . So when I load the page the /content/site content appears to be ok however the /content/preserve/preserve doesn't load and not sure why.... my rule is below any help appreciated..

Thanks

Matt

when HTTP_REQUEST { HTTP::path [string tolower [HTTP::path]] if {[string tolower [HTTP::uri]] starts_with "/content/preserve/preserve/"} { continue STREAM::disable } elseif {[string tolower [HTTP::uri]] starts_with "/"} { set uri [string map -nocase {"/" "/content/site/"} [HTTP::uri]] HTTP::uri $uri STREAM::disable HTTP::header remove "Accept-Encoding" } } when HTTP_RESPONSE { STREAM::disable STREAM::expression {@/content/site/@/@}

 Enable the stream filter for this response only
STREAM::enable

re-write Location header
HTTP::header replace Location [string map {/content/site/ /} [HTTP::header Location]]

}

application delivery
iRules
  • matt1985_299432's avatar
    matt1985_299432
    Icon for Nimbostratus rankNimbostratus
    Sep 12, 2017
    when HTTP_REQUEST {
    HTTP::path [string tolower [HTTP::path]] 
      if {[string tolower [HTTP::uri]] starts_with "/content/preserve/preserve/"} {
       continue
       STREAM::disable
        }
    elseif {[string tolower [HTTP::uri]] starts_with "/"} {
        set uri [string map -nocase {"/" "/content/site/"} [HTTP::uri]]
        HTTP::uri $uri
        STREAM::disable
        HTTP::header remove "Accept-Encoding"
        }
}
when HTTP_RESPONSE {
    STREAM::disable
    STREAM::expression {@/content/site/@/@}

     Enable the stream filter for this response only
    STREAM::enable

    re-write Location header
    HTTP::header replace Location [string map {/content/site/ /} [HTTP::header Location]]
}
  • vimaldiaz_23323's avatar
    vimaldiaz_23323
    Icon for Nimbostratus rankNimbostratus
    Sep 12, 2017

    Hi Matt,

     

    Did you to try configure Stream profile on Virtual Server? Instead of using i Rule

     

    • matt1985_299432's avatar
      matt1985_299432
      Icon for Nimbostratus rankNimbostratus
      Sep 12, 2017

      Hi Thanks,

       

      I thought you needed both? I had the default stream profile and then the IRULE.

       

  • nathe's avatar
    nathe
    Icon for Cirrocumulus rankCirrocumulus
    Sep 12, 2017

    Couple of questions, if you browse to content/preserve/preserve do you simply want to do nothing and is that what "continue" is in there for, in the first if statement? I'm not sure continue is a valid irule command (although i may be wrong). You could use the return or event commands instead e.g. 

    event disable all

    You will probably need to enable OneConnect profile too - if you haven't already - to ensure all HTTP requests are evaluated.

    Hopefully this helps,

    N