iRule: modifying the uri without a redirect

There are two ways to modify the URI.

 

 

1) HTTP redirects. This will send a redirect HTTP response to the client with the Location response header containing the new location. The browser will update the address bar with the new location and issue a new request.

 

 

2) Transparent header modifications. You can modify the HTTP::uri and HTTP::host values in an iRule without a redirect to the browser. This will make it appear to the server that a different request was made and the browser will not update it's address bar (since a redirect command wasn't made. So, if you want http://www.foo.com/file1.txt to "look like" http://www.bar.com/file2.txt, you can do so with the following iRules code

 

 

when HTTP_REQUEST {

 

if { ([HTTP::host] eq "www.foo.com") && ([HTTP::uri] eq "/file1.txt" } {

 

HTTP::host "www.bar.com"

 

HTTP::uri "/file2.txt"

 

}

 

}

 

 

Hope this helps...

 

 

Feel free to post more questions over on the iRules forum if they come up.

 

 

-Joe