For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

nramadan's avatar
nramadan
Icon for Nimbostratus rankNimbostratus
Oct 27, 2023

Dynamic String Value iRule

Hi everyone, 

From past days, I have been struggling an iRule that forward dynamic string from 1st URL to 2nd URL. For example

1st URL = https://example1.com/administration/data/value

2nd URL = http://example2.com/finance/data/value

when HTTP_REQUEST {
if {[string tolower [HTTP::host]] equals "https://example1.com"}{
if {[string tolower [HTTP::uri]] contains "/administration/data/"}{
HTTP::respond 302 noserver Location "http://example2.com[string map -nocase {"//finance/data/"} [HTTP::uri]]"
}
}
}

===================================================================

when HTTP_REQUEST {
set uri [HTTP::uri]
if { [HTTP::uri] contains "/administration/data/" } {
log local0. "Original URI: $uri"
HTTP::uri [string range [HTTP::uri] 400 end]
log local0. "Search Query: [HTTP::uri]"
HTTP::uri /finance/data/[HTTP::uri]
log local0. "New URI: [HTTP::uri]"
HTTP::redirect "http://example2.com[HTTP::uri]"
}
elseif { $uri starts_with "/administration/data/" } {
log local0. "Original URI: $uri"
HTTP::uri [string range [HTTP::uri] 400 end]
log local0. "Search Query: [HTTP::uri]"
HTTP::uri /finance/data/[HTTP::uri]
log local0. "New URI: [HTTP::uri]"
HTTP::redirect "http://example2.com[HTTP::uri]"
   }
}

I have used these 2 scripts, still got errors, any suggestions to fix this problem?

application delivery

4 Replies

  • Niels_van_Sluis's avatar
    Niels_van_Sluis
    Icon for MVP rankMVP
    Oct 29, 2023

    Yes, try the iRule below.

    when HTTP_REQUEST {
    if { [string tolower [HTTP::host]] equals "example1.com" && [string tolower [HTTP::uri]] starts_with "/administration/data/value" } {
        HTTP::respond 302 noserver Location "https://example2.com[string map -nocase {"administration" "finance"} [HTTP::uri]]"
    }
}

    Output:

    [nvsluis@ansible ~]$ curl -v --resolve example1.com:80:192.168.178.201 http://example1.com/administration/data/value/blah
* Added example1.com:80:192.168.178.201 to DNS cache
* About to connect() to example1.com port 80 (#0)
*   Trying 192.168.178.201...
* Connected to example1.com (192.168.178.201) port 80 (#0)
> GET /administration/data/value/blah HTTP/1.1
> User-Agent: curl/7.29.0
> Host: example1.com
> Accept: */*
>
* HTTP 1.0, assume close after body
< HTTP/1.0 302 Moved Temporarily
< Location: https://example2.com/finance/data/value/blah
* HTTP/1.0 connection set to keep alive!
< Connection: Keep-Alive
< Content-Length: 0
<
* Connection #0 to host example1.com left intact
[nvsluis@ansible ~]$

    Have fun,

         --Niels

      • Niels_van_Sluis's avatar
        Niels_van_Sluis
        Icon for MVP rankMVP
        Oct 30, 2023

        As you can see with the curl output in my previous reply, the iRule is working. Could you share a similar output with curl? If the iRule that I shared with you isn't working, the specifications on your side must be different, or I misunderstood them.