How can I chab=nge the format of a URL?

Hi,

You can rewrite the URI using HTTP::uri or HTTP::path. You can retrieve the URI and path with these commands as well. You can use HTTP::query to get the query string value. You can use URI::query [HTTP::uri] param_name to get the value of a specific parameter in the query string.

Here is an untested example which should give you some ideas on how to do this. I made some assumptions about when you would want to rewrite the URI and which fields you would want to take from the original URI.

 
 when HTTP_REQUEST { 
  
    log local0. "[IP::client_addr]:[TCP::client_port]: New HTTP request to [HTTP::uri]" 
  
     Check the requested path? 
    if {[HTTP::path] eq "/adserver/impression/pid=123/oid=860/rand=12345/"}{ 
  
        Rewrite the URI to /ad.imp? then take the third through fifth fiels in the path 
          and append the query string parameter pclk with the value of click from the original query string 
       HTTP::uri "/ad.imp?[URI::path [HTTP::uri] 3 5]?pclk=[URI::query [HTTP::uri] click]" 
       log local0. "[IP::client_addr]:[TCP::client_port]: Rewrote URI to: /ad.imp?[URI::path [HTTP::uri] 3 5]?pclk=[URI::query [HTTP::uri] click]" 
    } 
 } 
 when HTTP_REQUEST priority 501 { 
  
     This event is just used for debug logging of the values that are cached in the default priority 500 HTTP_REQUEST event above 
       You can comment out or remove this event when you're done testing 
    log local0. "[IP::client_addr]:[TCP::client_port]: Actual updated URI: [HTTP::uri]" 
 } 
 

Aaron