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lchln_304378's avatar
lchln_304378
Icon for Nimbostratus rankNimbostratus
Dec 29, 2016

Translate mod_rewrite to iRules

Hi guys, Trying to migrate mod_rewrite rules to F5 iRules and am not having much success. The current setup uses a regex to get the subdomain from a HTTP_HOST and then rewrites the URL, appending t...
application delivery
iRules
LTM
security
JG's avatar
JG
Icon for Cumulonimbus rankCumulonimbus
Jan 04, 2017
when HTTP_REQUEST {
    if { [string tolower [HTTP::host]] ends_with ".domain.com" } {
        switch -glob [string tolower [HTTP::uri]] {
            "/lib/*"  {
                          HTTP::redirect "http://my-error-page-server/"
            }
            "/static_pages/*" {
                          HTTP::redirect "http://my-error-page-server/"
            }
            "/assets/*"  {
                          HTTP::redirect "http://my-error-page-server/"
            }
            default {
                        HTTP::header replace Host "[getfield [HTTP::host] '.' 2].[getfield [HTTP::host] '.' 3]"
                        HTTP::uri "/[getfield [HTTP::host] '.' 1]"
                        node 1.2.3.4  Your backend server.
            }
        }
    }
}

If this does not work, please forget the irule for a moment and write down a full description of you requirement, for we seem to be trying to hit a moving target.