icingaweb2/application/forms/Config/AuthenticationBackendConfig...

345 lines
12 KiB
PHP

<?php
// {{{ICINGA_LICENSE_HEADER}}}
// {{{ICINGA_LICENSE_HEADER}}}
namespace Icinga\Forms\Config;
use InvalidArgumentException;
use Icinga\Forms\ConfigForm;
use Icinga\Web\Notification;
use Icinga\Application\Config;
use Icinga\Application\Platform;
use Icinga\Data\ConfigObject;
use Icinga\Data\ResourceFactory;
use Icinga\Exception\ConfigurationError;
use Icinga\Forms\Config\Authentication\DbBackendForm;
use Icinga\Forms\Config\Authentication\LdapBackendForm;
use Icinga\Forms\Config\Authentication\AutologinBackendForm;
class AuthenticationBackendConfigForm extends ConfigForm
{
/**
* The available resources split by type
*
* @var array
*/
protected $resources;
/**
* Initialize this form
*/
public function init()
{
$this->setName('form_config_authbackend');
$this->setSubmitLabel(t('Save Changes'));
}
/**
* Set the resource configuration to use
*
* @param Config $resources The resource configuration
*
* @return self
*/
public function setResourceConfig(Config $resourceConfig)
{
$resources = array();
foreach ($resourceConfig as $name => $resource) {
$resources[strtolower($resource->type)][] = $name;
}
$this->resources = $resources;
return $this;
}
/**
* Return a form object for the given backend type
*
* @param string $type The backend type for which to return a form
*
* @return Form
*/
public function getBackendForm($type)
{
if ($type === 'db') {
$form = new DbBackendForm();
$form->setResources(isset($this->resources['db']) ? $this->resources['db'] : array());
} elseif ($type === 'ldap') {
$form = new LdapBackendForm();
$form->setResources(isset($this->resources['ldap']) ? $this->resources['ldap'] : array());
} elseif ($type === 'autologin') {
$form = new AutologinBackendForm();
} else {
throw new InvalidArgumentException(sprintf(t('Invalid backend type "%s" provided'), $type));
}
return $form;
}
/**
* Add a particular authentication backend
*
* The backend to add is identified by the array-key `name'.
*
* @param array $values The values to extend the configuration with
*
* @return self
*
* @throws InvalidArgumentException In case the backend does already exist
*/
public function add(array $values)
{
$name = isset($values['name']) ? $values['name'] : '';
if (! $name) {
throw new InvalidArgumentException(t('Authentication backend name missing'));
} elseif ($this->config->hasSection($name)) {
throw new InvalidArgumentException(t('Authentication backend already exists'));
}
unset($values['name']);
$this->config->setSection($name, $values);
return $this;
}
/**
* Edit a particular authentication backend
*
* @param string $name The name of the backend to edit
* @param array $values The values to edit the configuration with
*
* @return array The edited backend configuration
*
* @throws InvalidArgumentException In case the backend does not exist
*/
public function edit($name, array $values)
{
if (! $name) {
throw new InvalidArgumentException(t('Old authentication backend name missing'));
} elseif (! ($newName = isset($values['name']) ? $values['name'] : '')) {
throw new InvalidArgumentException(t('New authentication backend name missing'));
} elseif (! $this->config->hasSection($name)) {
throw new InvalidArgumentException(t('Unknown authentication backend provided'));
}
$backendConfig = $this->config->getSection($name);
if ($newName !== $name) {
// Only remove the old entry if it has changed as the order gets screwed when editing backend names
$this->config->removeSection($name);
}
unset($values['name']);
$this->config->setSection($newName, $backendConfig->merge($values));
return $backendConfig;
}
/**
* Remove the given authentication backend
*
* @param string $name The name of the backend to remove
*
* @return array The removed backend configuration
*
* @throws InvalidArgumentException In case the backend does not exist
*/
public function remove($name)
{
if (! $name) {
throw new InvalidArgumentException(t('Authentication backend name missing'));
} elseif (! $this->config->hasSection($name)) {
throw new InvalidArgumentException(t('Unknown authentication backend provided'));
}
$backendConfig = $this->config->getSection($name);
$this->config->removeSection($name);
return $backendConfig;
}
/**
* Move the given authentication backend up or down in order
*
* @param string $name The name of the backend to be moved
* @param int $position The new (absolute) position of the backend
*
* @return self
*
* @throws InvalidArgumentException In case the backend does not exist
*/
public function move($name, $position)
{
if (! $name) {
throw new InvalidArgumentException(t('Authentication backend name missing'));
} elseif (! $this->config->hasSection($name)) {
throw new InvalidArgumentException(t('Unknown authentication backend provided'));
}
$backendOrder = $this->config->keys();
array_splice($backendOrder, array_search($name, $backendOrder), 1);
array_splice($backendOrder, $position, 0, $name);
$newConfig = array();
foreach ($backendOrder as $backendName) {
$newConfig[$backendName] = $this->config->getSection($backendName);
}
$config = Config::fromArray($newConfig);
$this->config = $config->setConfigFile($this->config->getConfigFile());
return $this;
}
/**
* Add or edit an authentication backend and save the configuration
*
* Performs a connectivity validation using the submitted values. A checkbox is
* added to the form to skip the check if it fails and redirection is aborted.
*
* @see Form::onSuccess()
*/
public function onSuccess()
{
if (($el = $this->getElement('force_creation')) === null || false === $el->isChecked()) {
$backendForm = $this->getBackendForm($this->getElement('type')->getValue());
if (false === $backendForm::isValidAuthenticationBackend($this)) {
$this->addElement($this->getForceCreationCheckbox());
return false;
}
}
$authBackend = $this->request->getQuery('auth_backend');
try {
if ($authBackend === null) { // create new backend
$this->add($this->getValues());
$message = t('Authentication backend "%s" has been successfully created');
} else { // edit existing backend
$this->edit($authBackend, $this->getValues());
$message = t('Authentication backend "%s" has been successfully changed');
}
} catch (InvalidArgumentException $e) {
Notification::error($e->getMessage());
return;
}
if ($this->save()) {
Notification::success(sprintf($message, $this->getElement('name')->getValue()));
} else {
return false;
}
}
/**
* Populate the form in case an authentication backend is being edited
*
* @see Form::onRequest()
*
* @throws ConfigurationError In case the backend name is missing in the request or is invalid
*/
public function onRequest()
{
$authBackend = $this->request->getQuery('auth_backend');
if ($authBackend !== null) {
if ($authBackend === '') {
throw new ConfigurationError(t('Authentication backend name missing'));
} elseif (! $this->config->hasSection($authBackend)) {
throw new ConfigurationError(t('Unknown authentication backend provided'));
} elseif ($this->config->getSection($authBackend)->backend === null) {
throw new ConfigurationError(sprintf(t('Backend "%s" has no `backend\' setting'), $authBackend));
}
$configValues = $this->config->getSection($authBackend)->toArray();
$configValues['type'] = $configValues['backend'];
$configValues['name'] = $authBackend;
$this->populate($configValues);
} elseif (empty($this->resources)) {
$autologinBackends = array_filter(
$this->config->toArray(),
function ($authBackendCfg) {
return isset($authBackendCfg['backend']) && $authBackendCfg['backend'] === 'autologin';
}
);
if (false === empty($autologinBackends)) {
throw new ConfigurationError(t('Could not find any resources for authentication'));
}
}
}
/**
* Return a checkbox to be displayed at the beginning of the form
* which allows the user to skip the connection validation
*
* @return Zend_Form_Element
*/
protected function getForceCreationCheckbox()
{
return $this->createElement(
'checkbox',
'force_creation',
array(
'order' => 0,
'ignore' => true,
'label' => t('Force Changes'),
'description' => t('Check this box to enforce changes without connectivity validation')
)
);
}
/**
* @see Form::createElements()
*/
public function createElements(array $formData)
{
$backendTypes = array();
$backendType = isset($formData['type']) ? $formData['type'] : null;
if (isset($this->resources['db'])) {
$backendTypes['db'] = t('Database');
}
if (isset($this->resources['ldap']) && ($backendType === 'ldap' || Platform::extensionLoaded('ldap'))) {
$backendTypes['ldap'] = 'LDAP';
}
$autologinBackends = array_filter(
$this->config->toArray(),
function ($authBackendCfg) {
return isset($authBackendCfg['backend']) && $authBackendCfg['backend'] === 'autologin';
}
);
if ($backendType === 'autologin' || empty($autologinBackends)) {
$backendTypes['autologin'] = t('Autologin');
}
if ($backendType === null) {
$backendType = key($backendTypes);
}
$this->addElement(
'select',
'type',
array(
'ignore' => true,
'required' => true,
'autosubmit' => true,
'label' => t('Backend Type'),
'description' => t('The type of the resource to use for this authenticaton provider'),
'multiOptions' => $backendTypes
)
);
if (isset($formData['force_creation']) && $formData['force_creation']) {
// In case another error occured and the checkbox was displayed before
$this->addElement($this->getForceCreationCheckbox());
}
$this->addElements($this->getBackendForm($backendType)->createElements($formData)->getElements());
}
/**
* Return the configuration for the chosen resource
*
* @return ConfigObject
*/
public function getResourceConfig()
{
return ResourceFactory::getResourceConfig($this->getValue('resource'));
}
}