Forum Discussion

Baqar_Husain_81's avatar
Baqar_Husain_81
Icon for Nimbostratus rankNimbostratus
Feb 05, 2008

action if http::header host exists

Simple enough question, and I'm drawing a blank and can't find anything relevant in the wiki or the forums:

 

Just looking for the correct syntax ..

 

 

if exists Host then replace HTTP::host with my.xyz.com

 

else

 

insert HTTP::header Host your.xyz.com

 

 

I'm converting HTTP/1.0 requests to HTTP/1.1 ... that part is working fine, but I want the LTM to insert an HTTP HOST entry should the original 1.0 request not have it.

 

 

Thanks
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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Feb 05, 2008
    Something like this?

    
when HTTP_REQUEST {
   if {[string length [HTTP::header value Host]]}{
      HTTP::header replace Host my.xyz.com
   } else {
      HTTP::header replace Host your.xyz.com
   }
}

    Aaron
  • Deb_Allen_18's avatar
    Deb_Allen_18
    Historic F5 Account
    Feb 06, 2008
    Why not just use the "HTTP::header exists" command?

    when HTTP_REQUEST {
   if {[HTTP::header exists Host]}{
      HTTP::header replace Host my.xyz.com
   } else {
      HTTP::header replace Host your.xyz.com
   }
}

    ???

    /deb
  • Baqar_Husain_81's avatar
    Baqar_Husain_81
    Icon for Nimbostratus rankNimbostratus
    Feb 06, 2008
    would the HTTP::header replace Host your.xyz.com work if the Host statement doesn't exist?
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Feb 07, 2008
    The wiki page for HTTP::header (Click here) indicates that if the header doesn't exist already, it will be inserted, so Deb's example should work perfectly.

     

     

    Aaron