Setup: Provide a default user filter for ActiveDirectory backends

fixes #8703

application/forms/Config/UserBackend/LdapBackendForm.php

@@ -92,7 +92,9 @@ class LdapBackendForm extends Form
             'text',
             'filter',
             array(
+                'preserveDefault'   => true,
                 'allowEmpty'        => true,
+                'value'             => $isAd ? '!(objectClass=computer)' : null,
                 'label'             => $this->translate('LDAP Filter'),
                 'description'       => $this->translate(
                     'An additional filter to use when looking up users using the specified connection. '

modules/setup/application/forms/AuthBackendPage.php

@@ -78,6 +78,23 @@ class AuthBackendPage extends Form
                 'Before you are able to authenticate using the LDAP connection defined earlier you need to'
                 . ' provide some more information so that Icinga Web 2 is able to locate account details.'
             ));
+            $this->addElement(
+                'select',
+                'type',
+                array(
+                    'ignore'            => true,
+                    'required'          => true,
+                    'autosubmit'        => true,
+                    'label'             => $this->translate('Backend Type'),
+                    'description'       => $this->translate(
+                        'The type of the resource being used for this authenticaton provider'
+                    ),
+                    'multiOptions'      => array(
+                        'ldap'      => 'LDAP',
+                        'msldap'    => 'ActiveDirectory'
+                    )
+                )
+            );
         } else { // $this->config['type'] === 'external'
             $backendForm = new ExternalBackendForm();
             $backendForm->createElements($formData);