Modifying HTTP REQUEST DATA

Thanks for the reply hoolio.

The only irule error I see is this one, but I have only this single entry in ltm log and he customer made several attempts.

irule_log - Illegal argument (line 25) invoked from within "HTTP::collect $clen"

The title is wrong I'm not modifying the HTTP Payload actually I'm using HTTP::payload for logging and statistics. Sorry about this.

Do you think HTTP::version part is correct even though I'm interested only in the HTTP_REQUEST_DATA?

Regarding logging TCP resets from this client I've made this iRule but I need to put it on a test environment.

  
  when CLIENT_ACCEPTED {  
     if { [IP::addr [IP::client_addr] equals 200.200.200.200] } {  
        log local0. "Just the client I want to debug: 200.200.200.200."  
        set debug 1  
     }  
  }  
    
  when HTTP_REQUEST {   
      No Chunk   
     if { [HTTP::version] eq "1.1" } {   
        if { [HTTP::header is_keepalive] } {   
           HTTP::header replace "Connection" "Keep-Alive"   
        }   
        HTTP::version "1.0"   
     }   
    
      Colect Content_length   
     set clen [HTTP::header Content-Length]   
     if { not [info exists clen] or "" eq $clen } {   
        set clen 1000000000   
     }   
     HTTP::collect $clen   
  }   
    
  when HTTP_REQUEST_DATA {   
     if { $debug == 1 }{  
        log local0. "Here comes the HTTP REQUEST PAYLOAD for 200.200.200.200..."  
        log local0. "[HTTP::payload]"   
     }  
     HTTP::release   
  }   
    
  when HTTP_RESPONSE {  
     if { [HTTP::header exists "Content-Length"] } {  
        set content_length [HTTP::header "Content-Length"]  
     } else {  
        set content_length 1000000000  
     }  
     HTTP::collect $content_length  
  }  
    
  when HTTP_RESPONSE_DATA {  
     if { $debug == 1 }{  
        log local0/ "Here comes the HTTP RESPONSE PAYLOAD for 200.200.200.200..."  
        log local0. "[HTTP::payload]"   
     }  
     HTTP::release   
  }  
    
  when CLIENT_CLOSED {  
     if { $debug == 1 }{  
        log local0. "Client 200.200.200.200 getting disconnected..."  
     }  
  }  
  

Thanks again!