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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
Ambk25's avatar
Ambk25
Icon for Nimbostratus rankNimbostratus

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]/"
    } 
}
      • Ambk25's avatar
        Ambk25
        Icon for Nimbostratus rankNimbostratus
        Nov 15, 2022

        Hi Kevin,

        This logic works for us and now we have tested below irule as per the requirement:

        when HTTP_REQUEST {
        if { ( [HTTP::method] ne "POST" ) and ( [HTTP::uri] contains "*/Webresources.axd" ) }
        {
        HTTP::redirect "https://[HTTP::host][HTTP::uri]]"

         

        } elseif { not ( [HTTP::uri] ends_with "/" ) && \
        not ( [HTTP::method] eq "POST" ) && \
        not ( [HTTP::uri] contains "/EPiServer.Forms/" ) && \
        not ( [HTTP::uri] contains "?" ) && \
        not ( [HTTP::uri] contains "/api/" ) && \
        not ([class match [string tolower [HTTP::path]] ends_with /DMZ/extensions])
        } {
        HTTP::respond 301 Location "https://[HTTP::host][string tolower [HTTP::uri]]/"
        }
        }

        Now we have additional condition which needs to be complete: If trailing slash and upper case is present then it needs to be redirect to lower case with trailing slash 

        Example: www.abc.com/vgh-BT-grt/ needs to be redirect to www.abc.com/vgh-bt-grt/

        Please help us to fulfil this requirement by modifying above mentioned irule.