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Vishal_96707's avatar
Vishal_96707
Icon for Nimbostratus rankNimbostratus
Jan 21, 2009

iRule for Response Header "content-length"

  I need help with getting the "content-length" value in Response header. Basically the iRule should check for HTTP "Status" 404 and "content-length" not equal to zero.     Thanks in a...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 22, 2009
You can get the Content-Length header value using 'HTTP::header value "Content-Length"'. Note that if the server responds with chunked encoding there wouldn't be a Content-Length header and [HTTP::header value "Content-Length"] would return a null length string.

 

 

 
 when HTTP_RESPONSE { 
  
     Check if response code is a 404 and the Content-Length header value is 0 
    if {[HTTP::status] == 404 && [HTTP::header value "Content-Length"] == 0}{ 
  
        Do something? 
  
       log local0. "[IP::client_addr]:[TCP::client_port]: Found 404 response with 0 Content-Length" 
    } 
 }

 

 

Aaron