Forum Discussion

Stephen_Archer_'s avatar
Stephen_Archer_
Historic F5 Account
Jul 03, 2006

re-write HTTP Response code 302 to HTTPS

Hi, I hope someone can help.

 

 

I have adapted the following code from a previous post:

 

 

when HTTP_RESPONSE {

 

if { [HTTP::status] contains "302"} {

 

if { [HTTP::header location] contains "http://www.test.com/portal/" } {

 

set newLoc [string map {http://www.test.com/portal/ https://www.test.com/portal/} [HTTP::header location] ]

 

HTTP::header replace location "$newLoc"

 

}

 

}

 

}

 

 

When a server sends a 302 response, the response includes a location field. A packet capture shows that the loaction field is set to "http://www.test.com/portal/", however I see no log entry and the header is not modified.

 

 

All I need to do is to change http to https, and leave the rest of the string intact. Am I going about this the right way?

 

 

Hope you can help!

 

 

Thank you,

 

 

A'

 

application delivery
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  • Colin_Walker_12's avatar
    Colin_Walker_12
    Historic F5 Account
    Jul 05, 2006
    Well, the first thing I would do is add a log statement to each step of the rule, to make sure that all the different sections are being evaluated as expected.

     

     

    Something like:

     

     

    
when HTTP_RESPONSE {
  if { [HTTP::status] contains "302"} {
    log local0. "Status code captured : [HTTP::status]"
    if { [HTTP::header location] contains "http://www.test.com/portal/" } {
      log local0. "Location header matches : [HTTP::header location"
      set newLoc [string map {http https} [HTTP::header location] ]
      log local0. "New string location: $newLoc"
      HTTP::header replace location "$newLoc"
    }
  }
}

     

     

    This should show you what's happening in the rule and what's not. Also note that I modified the string map command to be much simpler. Since the URLs are the same, you only need to change the http / https portion.

     

     

    Give this a shot and see if you can figure out what's happening / not happening. Let us know if you've got more questions.

     

     

    HTH,

     

    Colin
  • Stephen_Archer_'s avatar
    Stephen_Archer_
    Historic F5 Account
    Jul 06, 2006
    Colin,

     

     

    Brilliant! It worked perfectly. I wasn't too far away... your example has proved that logging is useful in troubleshooting - now I can see the entire URL that matches and helped me fix another issue we have been experiencing.

     

     

    Thank you very much indeed.

     

     

    Arch.