Modifying HTTP Version

Hi Ian,

The HTTP 1.0 RFC didn't detail the use of cookies, but there wasn't anything within the spec that prohibited them from being used. In terms of the 1.0 version of the protocol, cookies are just a header in requests and responses. Are you saying that when you test the example iRule I posted, which changes the version from 1.1 to 1.0, that the Cookie header (or others?) is removed by LTM? I wouldn't expect this to happen.

Or are you saying that somewhere between LTM and the end server, the cookie header is removed? If it's the former, can you test with this rule and reply with the log output from /var/log/ltm?

  
  when HTTP_REQUEST {   
    
      Log request headers  
     foreach a_header [HTTP::header names] {  
        log local0. "Pre:  $a_header: [HTTP::header value $a_header]"  
     }  
    
      Reset the variable tracking whether to update the HTTP version to 1.0   
     set update_version 0   
     
      If client request is 1.0, update the LTM to server version to 1.1    
        and track that we need reset the clientside response to 1.0   
     if { [HTTP::version] eq "1.0" }{   
        set update_version 1   
        HTTP::version 1.1   
     }  
      Log request headers  
     foreach a_header [HTTP::header names] {  
        log local0. "Post: $a_header: [HTTP::header value $a_header]"  
     }  
  }   
  when HTTP_RESPONSE {   
    
      Log response headers  
     foreach a_header [HTTP::header names] {  
        log local0. "Pre:  $a_header: [HTTP::header value $a_header]"  
     }  
    
      Check if the request was 1.0 and reset the response to 1.0   
     if { $update_version }{   
        HTTP::version 1.0   
     }   
      Log response headers  
     foreach a_header [HTTP::header names] {  
        log local0. "Post: $a_header: [HTTP::header value $a_header]"  
     }  
  }  
  

Thanks,

Aaron