Change Case on Append IP iRule

You can use 'string tolower "original_string"' to set a string to lower case. You can eliminate some of the variables as well:

  
  when HTTP_REQUEST {  
    
      Check if the path, set to lower case, ends with login.aspx  
     if {[string tolower [HTTP::path]] ends_with "login.aspx"}{   
    
         Check if there is a query string  
        if {[string length [HTTP::query]]}{  
    
            Append the IPAddress parameter with the client IP to the existing query string  
           HTTP::uri "[HTTP::uri]&IPAddress=[IP::client_addr]"  
    
        } else {  
    
            Append the IPAddress parameter with the client IP to the path  
           HTTP::uri "[HTTP::path]?IPAddress=[IP::client_addr]"  
        }  
     }  
  }  
  

For an example URL:

http://www.example.com:80/path/to/file.ext?param1=value1&param2=value2

These commands return the following values:

HTTP::host (Click here) - www.example.com:80

HTTP::path (Click here) - /path/to/file.ext

HTTP::query (Click here) - param1=value1&param2=value2

HTTP::uri (Click here) - /path/to/file.ext?param1=value1&param2=value2

Aaron