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Approxee's avatar
Approxee
Icon for Nimbostratus rankNimbostratus
Sep 15, 2017

ASM - Regex matching of URL with or without final / trailing slash

Hi Fourm,   I have a situation where sometimes the URL is requested with a final slash and sometimes it is not. Both URIs serve the content without a 301 redirect to the prefered URL - they both ...
ASM Advanced WAF
security
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Apr 01, 2019

Hi GreeceMonkey,

I'm using the iRule below to add trailing slashes to make ASM policie configuration more comfortable.

 

when HTTP_REQUEST {

    switch -glob -- [string tolower [HTTP::path]] "*.asmx*" - \
                                                  "*.json*" - \
                                                  "/_*" - \
                                                  "*/_layout*" - \
                                                  "*/_vti_bin*" - \
                                                  "*.svc/*" {

         if { $debug } { log -noname local0. "$log_prefix The HTTP::path contains a blacklisted string. Skipping \"Add_Slash_to_Folders\" Manipulation." }

    } default {

        switch -glob -- [URI::basename [HTTP::path]] "" {

             if { $debug } { log -noname local0. "$log_prefix The URI::basename is a /Folder/." }

        } "*.*" {

             if { $debug } { log -noname local0. "$log_prefix The URI::basename is a *.* File." }

        } default {

             if { $debug } { log -noname local0. "$log_prefix The URI::basename is a /Folder (without trailing slash). Adding a trailing slash to the URI::basename." }

            HTTP::path "[HTTP::path]/"

        }

    }

}

 

Cheers, Kai