Responding with binary image

I'm trying to implement a "goaway" capability. It seems like it should be possible to implement it totally in the Bigip. Basically, I need to respond to all URLs with an HTML page saying "come back later". But they want a logo on the page.

 

 

I've got an iRule that looks like this:

 

 

when HTTP_REQUEST {

 

set content [b64decode "base 64 encoded PNG"]

 

HTTP::Respond 200 content $content "Content-Type" "image/png"

 

}

 

 

But it only sends the PNG up until the first null character, which is about 7 bytes. I also tried to add a content-length header using [string length $content], and also got a value of 7.

 

 

Is there any way to deal with binary data like this in iRules? HTTP::Payload replace perhaps?

 

 

Craig Jackson

 

Craig.Jackson@thomson.com