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Curious1's avatar
Curious1
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Nov 29, 2019

URI Rewrite remove info

How can I remove info from the below URI? Other objects will be called after the numbers so cant just rewrite URI to "/"   hxxp://abc.com/1.2.3.4 : remove any IP address after the /
application delivery
info
iRules
LTM
remove
rewrite
uri
  • Enes_Afsin_Al's avatar
    Enes_Afsin_Al
    Jan 07, 2020

    Hi Curious,

    Can you try this iRule?

    when HTTP_REQUEST {
    if { [string match {/[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*} [HTTP::uri]] } {
        # log local0. "matchedUri: [HTTP::uri]"
        
        set changedUri [string trimleft [HTTP::uri] "/"]
        # log local0. "changedUri: $changedUri"
        
        if { $changedUri contains "/"} {
            set newUri "[string range $changedUri [string first / $changedUri] end]"
        } else {
            set newUri "/"
        }
        # log local0. "newUri: $newUri"
        
        HTTP::redirect "http://[HTTP::host]$newUri"
    }
}

    You can change regex with better expression. I couldn't find exact expression for the IP match.

jaikumar_f5's avatar
jaikumar_f5
Icon for MVP rankMVP

string tcl can look for exact strings, it doesn't act as a regex. The Op is asking for any IP address, not a particular IP address. Would this be still possible ?

Curious1's avatar
Curious1
Icon for Cirrus rankCirrus
Jan 07, 2020

Hey, any further help available on this as it has me beat?

 

The URLs will change in length as there will be different IP's that need to be removed. No pool will be assigned to the VS and the IP shown in the URL will be used to select a target to connect to. The IP in the URL needs to be removed as this URL will be invalid when requesting the resource on the target.

 

eg1. hxxp://abc.com/10.4.5.100/path/file (remove the IP and keep anything else)

eg2. hxxp://abc.com/10.50.100.200/path/file

 

Any assistance will be really appreciated.