Log length of css file in response

[ssievers_87378]

Hi,

I have a problem in the following case:

On a website there is a css-file that sometimes is not completely transferred to the client in the response. Now I like to write an iRule, that logs the length of this file when it is transferred to the client in server response, but I do not really know how to get _only_ information about this file in HTTP_RESPONSE event.

The request is a GET for /a/b/main.css

Regards,

Sören

[What_Lies_Bene1]

You can set a variable on the request, only when you see this URL and then you should be able to read the value of the HTTP Content-Length header in any response, only if the variable has been set. Does that make sense?

[What_Lies_Bene1]

I'm sure nitass will jump in with an example any minute now... =]

[ssievers_87378]

Hi,

yes - I know. I wrote an iRule in my first try like this: when HTTP_REQUEST { if { [HTTP::uri] eq "/a/b/main.css" } log local0. "CSS-DEBUG: [HTTP::uri]" } } when HTTP_RESPONSE { if { [HTTP::header "Content-type"] eq "text/css" }{ log local0. "CSS-DEBUG: Content-Length is [HTTP::header Content-Length]" } } The log shows me now all Content-Length values for all css-Files delivered to the clients (there is more than one css-File on the site). How can I only log the contend length from the main.css ?

[nitass]

can you try something like this? when HTTP_REQUEST { set uri [HTTP::uri] } when HTTP_RESPONSE { if { $uri equals "/a/b/main.css" } { log local0. "CSS-DEBUG: Content-Length is [HTTP::header Content-Length]" } }

[ssievers_87378]

Hi,

thanks - It works. I never thought that it can be so easy 🙂

Regards,

Sören

[hoolio]

A tweak to avoid saving the URI for every request: when HTTP_REQUEST { if { [HTTP::uri] equals "/a/b/main.css" } { set log_cl 1 } else { set log_cl 0 } } when HTTP_RESPONSE { if {$log_cl}{ log local0. "CSS-DEBUG: Content-Length is [HTTP::header Content-Length]" } } Aaron