Forum Discussion

TheManu's avatar
TheManu
Icon for Nimbostratus rankNimbostratus
Nov 12, 2007

data gets lost when URL redirect

I want to implement a URL redirect for the following URL:

 

 

https://test.company.com/branch/workinggroup

 

 

Destination is:

 

 

https://test.company.com/programs/logic.php

 

 

The purpose of this page is that a user may post XML data, which is put into the body of the page. The PHP file contains the logic to read this data and automatically create an order in our system.

 

 

 

When I use the following URL redirection, the request is the redirected but the data gets lost:

 

 

when HTTP_REQUEST { if { [HTTP::host] eq "test.company.com/branch/workinggroup"}{ HTTP::header replace "host" "test.company.com/programs/logic.php"}}

 

 

Does anyone know how to change the iRule to keep the order process working?

 

 

Thanks for your help.
application delivery
dev
devops
iRules
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Nov 12, 2007
    Hi,

    The Host header value doesn't include the URI, so that rule should never get triggered to replace the Host header. Also, to be exact, you want to rewrite the host and URI--not send a 302 redirect. The redirect would result in the client sending a new GET request to the redirect location.

    Can you try this?

    
when HTTP_REQUEST {
   if { [HTTP::host] eq "test.company.com"}{
      log local0. "Rewriting client request for host: [HTTP::header value Host], for URI: [HTTP::uri]"
      HTTP::header replace "host" "test.company.com"
      HTTP::uri "/programs/logic.php"
   }
}

    The log statement will be written to /var/log/ltm. You can watch the log using 'tail -f /var/log/ltm'.

    Aaron
  • TheManu's avatar
    TheManu
    Icon for Nimbostratus rankNimbostratus
    Nov 12, 2007
    Thank you for reply.

    If i use this:

    when HTTP_REQUEST {
   if { [HTTP::host] eq "test.company.com"}{
      log local0. "Rewriting client request for host: [HTTP::header value Host], for URI: [HTTP::uri]"
      HTTP::header replace "host" "test.company.com"
      HTTP::uri "/programs/logic.php"
   }
}

    the redirection will allways target the logic.php.

    May I use it like this?

    when HTTP_REQUEST {
   if { [HTTP::host] eq "test.company.com/branch1/workinggroup"}{
      log local0. "Rewriting client request for host: [HTTP::header value Host], for URI: [HTTP::uri]"
      HTTP::header replace "host" "test.company.com"
      HTTP::uri "/programs/logic1.php"
   }
}

    when HTTP_REQUEST {
   if { [HTTP::host] eq "test.company.com/branch2/workinggroup"}{
      log local0. "Rewriting client request for host: [HTTP::header value Host], for URI: [HTTP::uri]"
      HTTP::header replace "host" "test.company.com"
      HTTP::uri "/programs/logic2.php"
   }
}
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Nov 12, 2007
    Do you actually expect Host header values other than test.company.com? Assuming not, you could try this to verify the URI matches for the rewrite:

    
when HTTP_REQUEST {
    check if the path of the request starts with "/branch1/workinggroup"
   if {[HTTP::path] starts_with "/branch1/workinggroup"}{
      HTTP::header replace "Host" "test.company.com"
      HTTP::uri "/programs/logic1.php"
    check if the path of the request starts with "/branch2/workinggroup"
   } elseif }{[HTTP::path] starts_with "/branch2/workinggroup"}{
      HTTP::header replace "Host" "test.company.com"
      HTTP::uri "/programs/logic2.php"
   }
}

    If you do want to validate the Host header equals "test.company.com" you could wrap the path checks in an 'if'.

    Aaron
  • TheManu's avatar
    TheManu
    Icon for Nimbostratus rankNimbostratus
    Nov 12, 2007
    Hi Aaron,

     

     

    I can't use the Code you have just posted because I get an error:

     

     

    01070151:3: Rule [iRule1] error:

     

    line 1: [wrong args] [when HTTP_REQUEST ]

     

    line 2: [undefined procedure:

     

     

     

     

  • TheManu's avatar
    TheManu
    Icon for Nimbostratus rankNimbostratus
    Nov 12, 2007
    Me again,

     

     

    i've found the error in my code...

     

     

    ...the problem was a line break which the system didn't like

     

     

     

    Thank you very much...System is working now!!!