Irule ending with trailing slash

Question

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 Method POST2. ignore all URLs starting with:/WebResource.axd/EPiServer.Forms/&nbsp;3. URLs containing :a query in the URL (indication is “?”)URLs containing: /api/

kevin_stewart · Answer

Perhaps something like this:
when HTTP_REQUEST {
    if { not ( [HTTP::uri] ends_with "/" ) &amp;&amp; \
        not ( [HTTP::method] eq "POST" ) &amp;&amp; \
        not ( [HTTP::uri] starts_with "/Webresources.axd" ) &amp;&amp; \
        not ( [HTTP::uri] starts_with "/EPiServer.Forms/" ) &amp;&amp; \
        not ( [HTTP::uri] contains "?" ) &amp;&amp; \
        not ( [HTTP::uri] contains "/api/" ) } {
            HTTP::redirect "https://[HTTP::host][HTTP::uri]/"
    } 
}

ambk25 · Answer

Hi Kevin,&nbsp;Thnk you very much for your reply. We have also created below irule (&nbsp;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 · Answer

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 "/" ) &amp;&amp; \
        not ( [HTTP::method] eq "POST" ) &amp;&amp; \
        not ( [HTTP::uri] starts_with "/Webresources.axd" ) &amp;&amp; \
        not ( [HTTP::uri] starts_with "/EPiServer.Forms/" ) &amp;&amp; \
        not ( [HTTP::uri] contains "?" ) &amp;&amp; \
        not ( [HTTP::uri] contains "/api/" ) } {
            HTTP::redirect "https://[HTTP::host][HTTP::uri]/"
    } 
}

ambk25 · Answer

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.&nbsp; 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.&nbsp;

kevin_stewart · Answer

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 "/" ) &amp;&amp; \
        not ( [HTTP::method] eq "POST" ) &amp;&amp; \
        not ( [HTTP::uri] starts_with "/Webresources.axd" ) &amp;&amp; \
        not ( [HTTP::uri] starts_with "/EPiServer.Forms/" ) &amp;&amp; \
        not ( [HTTP::uri] contains "?" ) &amp;&amp; \
        not ( [HTTP::uri] contains "/api/" ) } {
            HTTP::redirect "https://[HTTP::host][HTTP::uri]/"
    } 
}

Forum Discussion

AppWorld Berlin iRules Contest!

F5 AppWorld 2026 Las Vegas - iRules Contest Winners!

Recent Discussions

Changes to DO and AS3 GitHub - no longer monitored

BIGIP VE - SSL acceleration with Intel QAT

Big IP licensed with wrong Base Registration Key

F5 Device Management Certificate renewal

Bot Defense causing a lot of false positives

Related Content

The End of ClientAuth EKU…Oh Mercy…What to do?

DEVCENTRAL END-USER LICENSE AGREEMENT

End-to-End Fraud and Risk Detection with F5 Distributed Cloud

Where SASE Ends and ADSP Begins, The Dual-Plane Zero Trust Model

iRule to Add Trailing Slash Except for Extensions