Forum Discussion

Lucas_Thompson_'s avatar
Lucas_Thompson_
Historic F5 Account
Dec 27, 2016

There is a session variable that's set when the user connects It's basically a logic decision based on the combination of the HTTP POST information and User-Agent that begins the connection.

Then there is a PHP switcher for delivering whatever CSS version (/var/sam/www/php_include/webtop/renderer/customization/general_ui/default_general_ui/en/apm.css):

Don't edit that file because your changes will be destroyed on any upgrade.

The logic looks like this:

$name = "apm_full.css";
switch( $_GET["uimode"] ){
    case 7: if( $_GET["cplatform"] == "MacOS" ){ $name = "apm_edge.css"; } break;
    case 9: $name = "apm_mobile.css"; break;
}
include( $name );

"uimode" is set to those numbers depending on a combination of the user agent and any POST data received.

  • ascherer_304302's avatar
    ascherer_304302
    Icon for Nimbostratus rankNimbostratus
    Dec 28, 2016

    Is it possible with an irule to write to this uimode so if the user-agent contains the app name it would be set to 9 ?

    Something like:

    if {[HTTP::header User-Agent] contains "(iOS) xxxx-iOS" }
{
    //force ui mode to 9
    log local0. "Connection from xxxx app detected"
}
  • Lucas_Thompson_'s avatar
    Lucas_Thompson_
    Historic F5 Account
    Dec 28, 2016

    I don't think so, but you can give it a shot.

     

    This issue sounds like a defect. User-Agent strings are always changing and unfortunately APM doesn't have a dynamically configurable map of what user-agent matches what uimode/etc. This feature has been (and continues to be) requested in different use cases.

     

  • ascherer_304302's avatar
    ascherer_304302
    Icon for Nimbostratus rankNimbostratus
    Dec 29, 2016

    I've looked around and it seems like I'm not able to access the session variables from an irule

     

    Since the app that is opening the login is a branded one we can manipulate the the User Agent string. Do you know what specific the logic switch is looking at ? Then it would be possible to manipulate either the http post values or the user agent string

     

    Thanks

     

  • Lucas_Thompson_'s avatar
    Lucas_Thompson_
    Historic F5 Account
    Dec 29, 2016

    Let's get a support ticket opened for this one so that the issue can be fully characterized. With this detailed understanding of the problem, it will be easy for support to help. Just be sure to provide the exact User-Agent and what the uimode session variable gets set to.

     

    You can access (read) the session variables from an irule as long as they exist, but there are some gotchas with writing them depending on the specific time you're doing it and for what purpose.