iRule to calculate content-length of response using HTTP::collect and HTTP::payload

Here is a nice iRule to calculate content-length of response using HTTP::collect and HTTP::payload -

---- CUT BELOW ----
when HTTP_RESPONSE {
  log local0. "HTTP_RESPONSE triggered"
    HTTP::collect 32000000
    set length [HTTP::payload length]
HTTP::header insert "Content-Length" $length
  log local0. "the content length of the response from OWS is $length"
}
---- CUT ABOVE ----

PLEASE NOTE:

1) HTTP::collect may cause issues with Big-IP tmm when it is not limited to a specific size.

Please make sure you read this solution before setting this iRule : http://support.f5.com/kb/en-us/solutions/public/6000/500/sol6578.html

The iRule above is suitable to v11.x and above.

2) This is not an official F5 iRule. Use it at your own risk.

Shumer.