AM Google Apps for the VU

/**
 * This manipulation is somewhat more complex than usual. It does 3 things:
 *
 * 1. take the e-mail address of the user and make it the nameid value ($subjectId)
 *    ISSUE: https://jira.surfconext.nl/jira/browse/CONXT-111
 * 2. if the schacHomeOrganization is "surfguest.nl" add '[email protected]' to
 *    the uid of the user
 *    ISSUE: https://jira.surfconext.nl/jira/browse/CONXT-143
 * 3. if there are multiple email addresses, prefer the one ending in @vu.nl in a
 *    smart way, see below.
 */
 
/**
 * Email address filtering
 *
 * The filtering has the following features:
 *
 * 1. prefer an address ending in @vu.nl, remove the others from the list of
 *    email addresses
 * 2. if no email address ends in @vu.nl take the primary address (at location
 *    [0] (that's why there is this weird for loop going backwards and
 *     conditional removal only if there is > 1 address left).
 * 3. make the preferred address also the nameid value ($subjectId)
 *
 * ISSUE: https://jira.surfconext.nl/jira/browse/CONXT-145
 */
 
if (isset($attributes) and ($attributes !== FALSE)) {
    if (!empty($attributes['urn:mace:terena.org:attribute-def:schacHomeOrganization']) &&
        $attributes['urn:mace:terena.org:attribute-def:schacHomeOrganization'][0] === "surfguest.nl") {
        $subjectId = $attributes['urn:mace:dir:attribute-def:uid'][0] . '[email protected]';
    } else {
        if (!empty($attributes['urn:mace:dir:attribute-def:mail'][0])) {
            $noOfAddresses = sizeof($attributes['urn:mace:dir:attribute-def:mail']);
            if($noOfAddresses > 1) {
                for($i = $noOfAddresses-1; $i >= 0; $i--) {
                    $result = preg_match('/.*@vu.nl$/', $attributes['urn:mace:dir:attribute-def:mail'][$i]);
                    if($result === 0) {
                        if(sizeof($attributes['urn:mace:dir:attribute-def:mail']) > 1) {
                            // only remove if we have more than one left
                            unset($attributes['urn:mace:dir:attribute-def:mail'][$i]);
                        }
                    }
                    sort($attributes['urn:mace:dir:attribute-def:mail']);
                }
            }
            $subjectId = $attributes['urn:mace:dir:attribute-def:mail'][0];
        }
    }
 
}