Drupal multi-site installations

Hi Miles,

You sure are pushing the boundaries of the KT module! Good stuff...

In order to authenticate the user knowledge tree needs to access your drupal installation. It uses the urls provided in the config.ini in two places - the plugin and the logout.php. So you are going to need to work out how to get the correct url in both places.

One way of making this easier will be to use a single sign on accross all your site - see http://drupal.org/node/14697#comment-179572 and then you'll only have to fix/hack the logout.php

The change you will need to make is rather than use the url's configured in the config.ini the system should work them out from the current url using php's predefined variables like $_SERVER (http://uk.php.net/manual/en/reserved.variables.server.php).

So assuming you have two sites www.site1.com and www.site2.com and drupal is installed in the root you could change the class in logout.php to

class KTLogoutDispatcher extends KTDispatcher {
    function do_main() {
        global $default;

        /*$oAuthenticator =& KTAuthenticationUtil::getAuthenticatorForUser($this->oUser);
        $oAuthenticator->logout($this->oUser);*/

		Session::destroy();
// Drupal is putting Knowledge tree into an iframe therefore need to use javascript to redirect the parent window to Drupal's logout
//        redirect((strlen($default->logoutUrl) > 0 ? $default->logoutUrl : "/"));
          // code to get current url  instead of using $default->logoutUrl
          $s = empty($_SERVER["HTTPS"]) ? '' : ($_SERVER["HTTPS"] == "on") ? "s" : ""; 
          $protocol = strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/").$s; 
          $DrupalLogoutUrl = $protocol."://".$_SERVER['SERVER_NAME']. '/logout'; 
		echo ('<script language="javascript" type="text/javascript">
               <!--
                  window.parent.location.replace(
                    "' . $DrupalLogoutUrl .'");
               -->
               </script>');
        exit(0);
    }
}

The changes to DrupalPlugin.php are a bit more complicated - add a new function

function _get_drupal_url() {
  $s = empty($_SERVER["HTTPS"]) ? '' : ($_SERVER["HTTPS"] == "on") ? "s" : ""; 
  $protocol = strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/").$s; 
  return $protocol."://".$_SERVER['SERVER_NAME']. '/';
}

And then replace and use of the config i.e $oKTConfig->get('drupalURL', false) with a call to the function e.g. line 22

  $drupalURL = _get_drupal_url();

IF drupal is not installed in the root then you're going to have a bit more fun working out the URL's

Hope this helps

Alex

This is now completely KnowledgeTree :)

But hey - here's what I think... you've got two options.

1. Turn off the cache in KT's config.ini (probably not a good idea - it's slow enough as is!)

2. Have two cache directories depending on the servername variable... to do this... you're going to have to change the initConfig function in dmsDefaults.php to add in the servername every time it accesses the cache or sets the cache directory. This made more complicated by the fact that there seems to be to ways that the cache is set... but thats in KT 3.4... don't know if this has changed in 3.5