Forum Discussion

dyobbs_25515's avatar
dyobbs_25515
Icon for Nimbostratus rankNimbostratus
Jul 22, 2015

iRule to match 2 or more strings in the URI?

I have this requirement to match 2 uris in the same request. i have this iRule:

 

when HTTP_REQUEST { switch -glob [HTTP::host][HTTP::uri] { "/upload" - " images " { pool SERVER1 } } }

 

The iRule above match "upload" or "images" then go to the pool.

 

What if I wanted to check both "upload" and "images" on the same request, and if match you go to pool SERVER1? what will be the iRule format? Any change on the " - " syntax?

 

thanks!

 

BIG-IP Access Policy Manager (APM)
deployment
security
strings
uri
  • mimlo_61970's avatar
    mimlo_61970
    Icon for Cumulonimbus rankCumulonimbus
    Jul 22, 2015

    I would recommend you use a datagroup to store all of the possible values and then search against it.

    when HTTP_REQUEST {
    if { [ class match [HTTP::uri] contains uri_Datagroup ] } {
        pool SERVER1
    } else {
        pool SOME_OTHER_POOL

    Then create a datagroup (named uri_Datagroup in the above example) of type string and put all of your URIs in it.

  • Kevin_Stewart's avatar
    Kevin_Stewart
    Icon for Employee rankEmployee
    Jul 22, 2015

    The switch command itself is more comparable with an "if/else if". There's no "and" option.

     

  • dyobbs_25515's avatar
    dyobbs_25515
    Icon for Nimbostratus rankNimbostratus
    Jul 22, 2015

    Thanks Kevin, any chance that we can use the "switch command", the strings that i need to match are about a hundred :)

     

    I’m wondering if there’s a change in the “ – “ syntax to check match both strings, as this works as an OR, what can we use to make it AND statement?

     

  • Kevin_Stewart's avatar
    Kevin_Stewart
    Icon for Employee rankEmployee
    Jul 22, 2015
    when HTTP_REQUEST {    
   if { ( [string tolower [HTTP::uri]] contains "upload" ) and ( [string tolower [HTTP::uri]] contains "images" ) } {       
      pool SERVER1
   } else {       
      pool SOME_OTHER_POOl
   }
}