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Forum Discussion

Brent_Sachnoff_'s avatar
Brent_Sachnoff_
Icon for Nimbostratus rankNimbostratus
Oct 23, 2007

Using switch with uri

I'm having some issues using the switch command and uri's. I believe the switch command is only for EQUALS to something for it to work properly which means this wouldn't work at all. Here is a sample...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Oct 24, 2007
You can use the -glob flag on switch to enable wildcards. By default, switch uses -exact to require exact matches. Here is an example:


when HTTP_REQUEST {
   switch -glob [HTTP::uri] {
      "/search/*" { pool search }
      "*/int_search/" { pool search }
      "/pictures/" { node 10.4.43.1 80 }
      "/" { HTTP::redirect "https://[HTTP::host]/IMT/LoginAction.go" }
      default {
         pool www
      }
   }
}

/search/* would match anything starting with /search/. */int_search/ would match anything ending with /int_search/. /pictures/ would match only requests to exactly that URI.

For details on switch options, check the TCL page (Click here). Note that the -nocase flag described in the TCL page is not enabled for iRules. If you want to perform a case insensitive comparison, set the URI to lower case using 'switch -glob [string tolower [HTTP::uri]]'.

Aaron