/**
  * init settings form
  *
  * @access protected
  */
 protected function initSettingsForm($a_mode = 'update')
 {
     if (is_object($this->form)) {
         return true;
     }
     include_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
     $this->form = new ilPropertyFormGUI();
     $this->form->setFormAction($this->ctrl->getFormAction($this, 'settings'));
     $this->form->setTitle($this->lng->txt('ecs_connection_settings'));
     $ena = new ilCheckboxInputGUI($this->lng->txt('ecs_active'), 'active');
     $ena->setChecked($this->settings->isEnabled());
     $ena->setValue(1);
     $this->form->addItem($ena);
     $ser = new ilTextInputGUI($this->lng->txt('ecs_server_url'), 'server');
     $ser->setValue((string) $this->settings->getServer());
     $ser->setRequired(true);
     $this->form->addItem($ser);
     $pro = new ilSelectInputGUI($this->lng->txt('ecs_protocol'), 'protocol');
     // fixed to https
     #$pro->setOptions(array(ilECSSetting::PROTOCOL_HTTP => $this->lng->txt('http'),
     #		ilECSSetting::PROTOCOL_HTTPS => $this->lng->txt('https')));
     $pro->setOptions(array(ilECSSetting::PROTOCOL_HTTPS => 'HTTPS'));
     $pro->setValue($this->settings->getProtocol());
     $pro->setRequired(true);
     $this->form->addItem($pro);
     $por = new ilTextInputGUI($this->lng->txt('ecs_port'), 'port');
     $por->setSize(5);
     $por->setMaxLength(5);
     $por->setValue((string) $this->settings->getPort());
     $por->setRequired(true);
     $this->form->addItem($por);
     $tcer = new ilRadioGroupInputGUI($this->lng->txt('ecs_auth_type'), 'auth_type');
     $tcer->setValue($this->settings->getAuthType());
     $this->form->addItem($tcer);
     // Certificate based authentication
     $cert_based = new ilRadioOption($this->lng->txt('ecs_auth_type_cert'), ilECSSetting::AUTH_CERTIFICATE);
     $tcer->addOption($cert_based);
     $cli = new ilTextInputGUI($this->lng->txt('ecs_client_cert'), 'client_cert');
     $cli->setSize(60);
     $cli->setValue((string) $this->settings->getClientCertPath());
     $cli->setRequired(true);
     $cert_based->addSubItem($cli);
     $key = new ilTextInputGUI($this->lng->txt('ecs_cert_key'), 'key_path');
     $key->setSize(60);
     $key->setValue((string) $this->settings->getKeyPath());
     $key->setRequired(true);
     $cert_based->addSubItem($key);
     $cerp = new ilTextInputGUI($this->lng->txt('ecs_key_password'), 'key_password');
     $cerp->setSize(12);
     $cerp->setValue((string) $this->settings->getKeyPassword());
     $cerp->setInputType('password');
     $cerp->setRequired(true);
     $cert_based->addSubItem($cerp);
     $cer = new ilTextInputGUI($this->lng->txt('ecs_ca_cert'), 'ca_cert');
     $cer->setSize(60);
     $cer->setValue((string) $this->settings->getCACertPath());
     $cer->setRequired(true);
     $cert_based->addSubItem($cer);
     // Apache auth
     $apa_based = new ilRadioOption($this->lng->txt('ecs_auth_type_apache'), ilECSSetting::AUTH_APACHE);
     $tcer->addOption($apa_based);
     $user = new ilTextInputGUI($this->lng->txt('ecs_apache_user'), 'auth_user');
     $user->setSize(32);
     $user->setValue((string) $this->settings->getAuthUser());
     $user->setRequired(true);
     $apa_based->addSubItem($user);
     $pass = new ilPasswordInputGUI($this->lng->txt('ecs_apache_pass'), 'auth_pass');
     $pass->setRetype(false);
     $pass->setSize(16);
     $pass->setMaxLength(32);
     $pass->setValue((string) $this->settings->getAuthPass());
     $pass->setRequired(true);
     $apa_based->addSubItem($pass);
     $ser = new ilNonEditableValueGUI($this->lng->txt('cert_serial'));
     $ser->setValue($this->settings->getCertSerialNumber() ? $this->settings->getCertSerialNumber() : $this->lng->txt('ecs_no_value'));
     $cert_based->addSubItem($ser);
     $loc = new ilFormSectionHeaderGUI();
     $loc->setTitle($this->lng->txt('ecs_local_settings'));
     $this->form->addItem($loc);
     $pol = new ilDurationInputGUI($this->lng->txt('ecs_polling'), 'polling');
     $pol->setShowDays(false);
     $pol->setShowHours(false);
     $pol->setShowMinutes(true);
     $pol->setShowSeconds(true);
     $pol->setSeconds($this->settings->getPollingTimeSeconds());
     $pol->setMinutes($this->settings->getPollingTimeMinutes());
     $pol->setRequired(true);
     $pol->setInfo($this->lng->txt('ecs_polling_info'));
     $this->form->addItem($pol);
     $imp = new ilCustomInputGUI($this->lng->txt('ecs_import_id'));
     $imp->setRequired(true);
     $tpl = new ilTemplate('tpl.ecs_import_id_form.html', true, true, 'Services/WebServices/ECS');
     $tpl->setVariable('SIZE', 5);
     $tpl->setVariable('MAXLENGTH', 11);
     $tpl->setVariable('POST_VAR', 'import_id');
     $tpl->setVariable('PROPERTY_VALUE', $this->settings->getImportId());
     if ($this->settings->getImportId()) {
         $tpl->setVariable('COMPLETE_PATH', $this->buildPath($this->settings->getImportId()));
     }
     $imp->setHTML($tpl->get());
     $imp->setInfo($this->lng->txt('ecs_import_id_info'));
     $this->form->addItem($imp);
     $loc = new ilFormSectionHeaderGUI();
     $loc->setTitle($this->lng->txt('ecs_remote_user_settings'));
     $this->form->addItem($loc);
     $role = new ilSelectInputGUI($this->lng->txt('ecs_role'), 'global_role');
     $role->setOptions($this->prepareRoleSelect());
     $role->setValue($this->settings->getGlobalRole());
     $role->setInfo($this->lng->txt('ecs_global_role_info'));
     $role->setRequired(true);
     $this->form->addItem($role);
     $duration = new ilDurationInputGUI($this->lng->txt('ecs_account_duration'), 'duration');
     $duration->setInfo($this->lng->txt('ecs_account_duration_info'));
     $duration->setMonths($this->settings->getDuration());
     $duration->setShowSeconds(false);
     $duration->setShowMinutes(false);
     $duration->setShowHours(false);
     $duration->setShowDays(false);
     $duration->setShowMonths(true);
     $duration->setRequired(true);
     $this->form->addItem($duration);
     // Email recipients
     $loc = new ilFormSectionHeaderGUI();
     $loc->setTitle($this->lng->txt('ecs_notifications'));
     $this->form->addItem($loc);
     $rcp_user = new ilTextInputGUI($this->lng->txt('ecs_user_rcp'), 'user_recipients');
     $rcp_user->setValue((string) $this->settings->getUserRecipientsAsString());
     $rcp_user->setInfo($this->lng->txt('ecs_user_rcp_info'));
     $this->form->addItem($rcp_user);
     $rcp_econ = new ilTextInputGUI($this->lng->txt('ecs_econ_rcp'), 'econtent_recipients');
     $rcp_econ->setValue((string) $this->settings->getEContentRecipientsAsString());
     $rcp_econ->setInfo($this->lng->txt('ecs_econ_rcp_info'));
     $this->form->addItem($rcp_econ);
     $rcp_app = new ilTextInputGUI($this->lng->txt('ecs_approval_rcp'), 'approval_recipients');
     $rcp_app->setValue((string) $this->settings->getApprovalRecipientsAsString());
     $rcp_app->setInfo($this->lng->txt('ecs_approval_rcp_info'));
     $this->form->addItem($rcp_app);
     if ($a_mode == 'update') {
         $this->form->addCommandButton('update', $this->lng->txt('save'));
     } else {
         $this->form->addCommandButton('save', $this->lng->txt('save'));
     }
     $this->form->addCommandButton('overview', $this->lng->txt('cancel'));
 }