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supportrsd_1762's avatar
supportrsd_1762
Icon for Nimbostratus rankNimbostratus
Jan 15, 2015

Rewrite

Hello I need to rewrite a url for a webapplication (that is accsed with a apm portal) from a absolute url to relative url (for a couple of reason there is no way of changing it in the code that generates the url)

 

So the full url looks like this: https://hejhej.hej.com/HFS/index.php?action

 

and i want to strip the https://hejhej.hej.com/HFS/

 

The irule looks like this, but i cant get it to work, it dont seems to find the urls, since they are left untouched

 

    when HTTP_REQUEST {
    if { [string tolower [HTTP::uri]] contains "f5-w-6874000033a2f2f73736c76706e2e6668732e7365$$" } {
         Remove the Accept-Encoding header so that the server will not compress the response 
           (otherwise the stream rewriter won't work, since it doesn't decompress the stream)
        HTTP::header remove "Accept-Encoding"
        log local0. "    Match"
         Set a variable so we know to do custom stream rewrite
        set strReplace 1

         Disable the default stream profile so we can modify it on response
        STREAM::disable
    }
}

when HTTP_RESPONSE {
    if { [info exists strReplace] && $strReplace && [HTTP::header "Content-Type"] contains "html" } {


        STREAM::expression {@
APM
application delivery
LTM
security
stream
TMOS

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  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 15, 2015

    OK, could be a few things but lets start with checking both the if and the expression using some logging - add this here;

     Set a variable so we know to do custom stream rewrite
  set strReplace 1
  log local "Request matches, setting replace variable"

    This here;

    when HTTP_RESPONSE {
if { [info exists strReplace] && $strReplace && [HTTP::header "Content-Type"] contains "html" } {
log local "Variable exists, variable is set to 1 and content type contains html"

    If we hit your "Match1" log statement after the first two we know its the stream expression. I must say it looks rather complex.

  • supportrsd_1762's avatar
    supportrsd_1762
    Icon for Nimbostratus rankNimbostratus
    Jan 15, 2015

    Strange, now i dont get the "Variable exists, variable is set to 1 and content type contains html" message, but im sure that i have gotten math1 before.