Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Scott_Larson's avatar
Scott_Larson
Icon for Nimbostratus rankNimbostratus
Aug 17, 2007

Regexp to scrub http response data payload

I'm trying to write an iRule with a regexp that will scour outgoing HTTP payloads and replace http with https and remove any port (and the colon preceeding the port number) - that is, scrub all outgoi...
application delivery
dev
devops
irules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Aug 20, 2007
If you know what ports are referenced in the HTTP content you might be able to use a stream profile to perform the replacement using fewer resources than buffering the response data and doing a regsub.

Here is an example:


when HTTP_RESPONSE {
   STREAM::enable
   STREAM::expression @http://www.example.com:80@http://www.example.com@@https://www.example.com:443@https://www.example.com@
}

The format for the stream expression is @search1@replace1@@search2@replace2@@

See the wiki page for stream (Click here) and this post for more info (Click here).

Aaron