SmartName.php

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<?php

class sspmod_smartattributes_Auth_Process_SmartName extends SimpleSAML_Auth_ProcessingFilter
{
    private $attributes = array();


    private function getFullName($attributes)
    {
        if (isset($attributes['displayName'])) {
            return $attributes['displayName'][0];
        }

        if (isset($attributes['cn'])) {
            if (count(explode(' ', $attributes['cn'][0])) > 1) {
                return $attributes['cn'][0];
            }
        }

        if (isset($attributes['sn']) && isset($attributes['givenName'])) {
            return $attributes['givenName'][0].' '.$attributes['sn'][0];
        }

        if (isset($attributes['cn'])) {
            return $attributes['cn'][0];
        }

        if (isset($attributes['sn'])) {
            return $attributes['sn'][0];
        }

        if (isset($attributes['givenName'])) {
            return $attributes['givenName'][0];
        }

        if (isset($attributes['eduPersonPrincipalName'])) {
            $localname = $this->getLocalUser($attributes['eduPersonPrincipalName'][0]);
            if (isset($localname)) {
                return $localname;
            }
        }               

        return null;
    }

    private function getLocalUser($userid)
    {
        if (strpos($userid, '@') === false) {
            return null;
        }
        $decomposed = explode('@', $userid);
        if (count($decomposed) === 2) {
            return $decomposed[0];
        }
        return null;
    }

    public function process(&$request)
    {
        assert(is_array($request));
        assert(array_key_exists('Attributes', $request));

        $attributes =& $request['Attributes'];

        $fullname = $this->getFullName($attributes);

        if (isset($fullname)) {
            $request['Attributes']['smartname-fullname'] = array($fullname);
        }
    }
}