Forum Discussion

Ambk25's avatar
Ambk25
Icon for Nimbostratus rankNimbostratus
Oct 28, 2022

Irule ending with trailing slash

I have requirement that If URL is referring to a page that does not end with a "/" then redirect to the same URL ending with a "/" but it should not include below points: 1. ignore all request with ...
security
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee

Perhaps something like this:

when HTTP_REQUEST {
    if { not ( [HTTP::uri] ends_with "/" ) && \
        not ( [HTTP::method] eq "POST" ) && \
        not ( [HTTP::uri] starts_with "/Webresources.axd" ) && \
        not ( [HTTP::uri] starts_with "/EPiServer.Forms/" ) && \
        not ( [HTTP::uri] contains "?" ) && \
        not ( [HTTP::uri] contains "/api/" ) } {
            HTTP::redirect "https://[HTTP::host][HTTP::uri]/"
    } 
}
Ambk25's avatar
Ambk25
Icon for Nimbostratus rankNimbostratus
Oct 31, 2022

Hi Kevin, 

Thnk you very much for your reply. We have also created below irule ( with one more requirment --- If any letter in the URL contains upper case then redirect to a strict lower case version of the same URL):

when HTTP_REQUEST {

if { [HTTP::uri] ne [string tolower [HTTP::uri]] } { HTTP::respond 301 noserver Location [string tolower [HTTP::uri]] }

if { not ( [HTTP::uri] ends_with "/" ) and ! ([class match [string tolower [HTTP::path]] ends_with /DMZ/extensions]) and (! ([HTTP::uri] contains "/api/") or ! ([HTTP::uri] contains "/WebResource.axd") or !([HTTP::uri] contains "/EPiServer.Forms/") or !([HTTP::uri] contains "?") )} { HTTP::respond 307 Location "[HTTP::uri]/" }
}

In this irule we want to ignore all post method request which should not redirect, so let us know how we can achive this condition.

  • Kevin_Stewart's avatar
    Kevin_Stewart
    Icon for Employee rankEmployee
    Oct 31, 2022
    when HTTP_REQUEST {
    if { [HTTP::uri] ne [string tolower [HTTP::uri]] } {
        HTTP::redirect "https://[HTTP::host][string tolower [HTTP::uri]]"
        
    } elseif { not ( [HTTP::uri] ends_with "/" ) && \
        not ( [HTTP::method] eq "POST" ) && \
        not ( [HTTP::uri] starts_with "/Webresources.axd" ) && \
        not ( [HTTP::uri] starts_with "/EPiServer.Forms/" ) && \
        not ( [HTTP::uri] contains "?" ) && \
        not ( [HTTP::uri] contains "/api/" ) } {
            HTTP::redirect "https://[HTTP::host][HTTP::uri]/"
    } 
}
    • Ambk25's avatar
      Ambk25
      Icon for Nimbostratus rankNimbostratus
      Nov 02, 2022

      Hi Kevin,

      Thanks for your response. We have tested this and fulfilling our requirement but only one problem.

      We want to ignore all post method request which should not redirect for first condition i.e. upper to lower case redirection.  That means all post methods should not convert to lower case and should not get trail slash. So let us know how we can achieve this condition in existing irule.

       

      • Kevin_Stewart's avatar
        Kevin_Stewart
        Icon for Employee rankEmployee
        Nov 02, 2022
        when HTTP_REQUEST {
    if { ( [HTTP::method] ne "POST" ) and ( [HTTP::uri] ne [string tolower [HTTP::uri]] ) } {
        HTTP::redirect "https://[HTTP::host][string tolower [HTTP::uri]]"
        
    } elseif { not ( [HTTP::uri] ends_with "/" ) && \
        not ( [HTTP::method] eq "POST" ) && \
        not ( [HTTP::uri] starts_with "/Webresources.axd" ) && \
        not ( [HTTP::uri] starts_with "/EPiServer.Forms/" ) && \
        not ( [HTTP::uri] contains "?" ) && \
        not ( [HTTP::uri] contains "/api/" ) } {
            HTTP::redirect "https://[HTTP::host][HTTP::uri]/"
    } 
}