URL Change

Hi Jeff,

I'd try to fix the app first. If that's not an option, you can rewrite the response headers and/or content with an iRule. To rewrite the header (typically the Location header in a redirect) you can use the following rule:

  
  when HTTP_RESPONSE {  
    
      Check if response is a redirect  
     if {[HTTP::is_redirect]}{  
    
         Replace http//mysite.com with nothing if it's present in the Location header value  
        HTTP::header replace Location [string map {http//mysite.com ""} [HTTP::header value Location]]   
     }  
  }  
  

If you need to perform the replacement in the response content, you can add the stock stream profile and then use an iRule to configure the search/replace strings:

  
  when HTTP_RESPONSE {  
    
      Check if response is a redirect  
     if {[HTTP::is_redirect]}{  
    
         Replace http//mysite.com with nothing if it's present in the Location header value  
        HTTP::header replace Location [string map [list http//mysite.com ""] [HTTP::header value Location]]   
     }  
      Check if response content type is text  
     if {[HTTP::header value "Content-Type"] starts_with "text"}{  
    
         Set the stream expression  
        STREAM::expression "@http//mysite.com@@"  
    
         Enable the stream filter  
        STREAM::enable  
     } else {  
         Response wasn't text, so disable the stream filter  
        STREAM::disable  
     }  
  }  
  

If it's a typo that http//mysite.com is missing the :, you can use http://mysite.comhttp://mysite.com as the search string and replace it with http://mysite.com. You'd then want to use the following string map and STREAM::expression replacement strings:

Old:

HTTP::header replace Location [string map [list http//mysite.com ""] [HTTP::header value Location]]

New:

HTTP::header replace Location [string map [list http://mysite.comhttp://mysite.com http://mysite.com] [HTTP::header value Location]]

And, for the STREAM::expression:

Old:

STREAM::expression "@http//mysite.com@@"

New:

STREAM::expression "@http://mysite.comhttp://mysite.com@http://mysite.com@"

You can check the STREAM::expression wiki page (Click here ) for details on configuring a stream and HTTP profile for this rule.

Aaron