For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

stupid48's avatar
stupid48
Icon for Altocumulus rankAltocumulus
Aug 12, 2015

Replace multiple strings with iRule?

Hi there,

 

I've got an occasion to replace a few strings in an HTTP_RESPONSE. I can't seem to figure out the syntax. I've got it replacing one using STREAM::expression but I'm not sure how to do two or three distinct texts.

 

Thanks for any advice...

 

application delivery
devops
iRules
LTM

3 Replies

  • VernonWells's avatar
    VernonWells
    Icon for Employee rankEmployee
    Aug 13, 2015

    I believe the 

    STREAM::expression
    page provides the answer you're seeking:

    Specifically, you can space-delimit replacement pairs, as in:

    when HTTP_REQUEST {
    STREAM::disable
    HTTP::header remove "Accept-Encoding"
}

when HTTP_RESPONSE {
    STREAM::expression {/onething/anotherthing/ /secondthing/yetanother/}
    STREAM::enable
}
  • stupid48's avatar
    stupid48
    Icon for Altocumulus rankAltocumulus
    Aug 13, 2015

    Thanks. Sorry for wasting your time. I should have read the specs on STREAM::expression