Remove port redirect from URL

Hi there,

If you know that the server will only use its own port in the Location header in redirects, you could remove : where is the server's port (any number of digits) using string map. Or if you want to replace the colon followed by one or more digits, you could use regsub. The first approach would be more efficient as it doesn't use regexes. The second would be more effective if you don't know what port will be included.

  
  when HTTP_RESPONSE {  
    
      Check if a response is a redirect  
     if {[HTTP::is_redirect]}{  
    
        log local0. "Original Location: [HTTP::header value Location]"  
    
         Assume the server will use it's own TCP port in redirects and remove it.  
        HTTP::header replace Location [string map [list ":[LB::server port]" ""] [HTTP::header value Location]]  
        log local0. "Updated location (string map): [string map [list :[LB::server port] ""] [HTTP::header value Location]]"    
    
         Use regsub to remove the colon and any characters up to the next forward slash.  
        HTTP::header replace Location [regsub {:[0-9]+?(?=/)} [HTTP::header value Location] ""]  
        log local0. "Updated Location (regsub): [regsub {:[0-9]+?(?=/)} [HTTP::header value Location] ""]"  
     }  
  }  
  

Aaron