Forum Discussion

Frank_30524's avatar
Frank_30524
Icon for Nimbostratus rankNimbostratus
Apr 16, 2009

convert irule from 9.x to 4.x

I am relatively new to 4.x and need help converting a redirect irule.

 

Here is it in version 9.x.

 

 

when HTTP_REQUEST {

 

if { [HTTP::uri] eq "/" and [HTTP::host] eq "www.abc.abc.com" } {

 

HTTP::redirect "http://www.abc.abc.com:8000/bla/bla"

 

} else {

 

HTTP::redirect "https://[HTTP::host][HTTP::uri]"

 

use pool abc-pool

 

}

 

}

 

 

any help would be appreciated.

 

 

Thanks in advanced.
application delivery
dev
devops
iRules
v4
  • The_Bhattman's avatar
    The_Bhattman
    Icon for Nimbostratus rankNimbostratus
    Apr 19, 2009
    You can rewrite it in the following ways: 

      
 when HTTP_REQUEST {   
 if { ([HTTP::uri] eq "/") and ([HTTP::host] eq "www.abc.abc.com") } {   
 HTTP::redirect "http://www.abc.abc.com:8000/bla/bla"   
 } else {   
 HTTP::redirect "https://[HTTP::host][HTTP::uri]"   
 pool abc-pool  
 }   
 }

    or 

      
 when HTTP_REQUEST {   
 if { ([HTTP::uri] eq "/") and ([string tolower [HTTP::host]] eq "www.abc.abc.com") } {   
 HTTP::redirect "http://www.abc.abc.com:8000/bla/bla"   
 } else {   
 HTTP::redirect "https://[HTTP::host][HTTP::uri]"   
 pool abc-pool  
 }   
 }

    or 

      
 when HTTP_REQUEST {   
 if { ([HTTP::host] eq "www.abc.abc.com") and ([HTTP::uri] eq "/") } {   
 HTTP::redirect "http://www.abc.abc.com:8000/bla/bla"   
 } else {   
 HTTP::redirect "https://[HTTP::host][HTTP::uri]"   
 pool abc-pool  
 }   
 }

    Hope this helps

    CB
  • Frank_30524's avatar
    Frank_30524
    Icon for Nimbostratus rankNimbostratus
    Apr 20, 2009
    Thanks,

     

    I've been playing with this and keep getting this error:

     

     

    Error 331835 -- Rule string to tree failed. - syntax error at 'when'

     

    line 1: when HTTP_REQUEST {

     

     

    Can't seem to get past it.

     

     

    Thanks
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Apr 21, 2009
    Those are 9.x formatted iRules, so they won't work in a 4.x unit. Also, for the else clause, do you want to redirect the client or select the pool? They are two distinct actions which can't both be done.

    Here is a rough start for a 4.x version of the iRule. I don't have ready access to a 4.x unit, so I can't confirm the syntax is perfect. 

     
 if (http_uri == "/" and http_host == "www.abc.abc.com" ) { 
    redirect_to "http://www.abc.abc.com:8000/bla/bla" 
 } else { 
    redirect_to "https://[HTTP::host][HTTP::uri]" 
     OR  
    use pool abc-pool 
 }

    Aaron