483 lines
15 KiB
PHP
483 lines
15 KiB
PHP
<?php
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/* Icinga Web 2 | (c) 2014 Icinga Development Team | GPLv2+ */
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namespace Icinga\Forms\Config;
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use InvalidArgumentException;
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use Icinga\Application\Config;
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use Icinga\Authentication\User\UserBackend;
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use Icinga\Exception\ConfigurationError;
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use Icinga\Exception\IcingaException;
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use Icinga\Exception\NotFoundError;
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use Icinga\Data\ConfigObject;
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use Icinga\Data\Inspectable;
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use Icinga\Data\Inspection;
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use Icinga\Forms\ConfigForm;
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use Icinga\Forms\Config\UserBackend\ExternalBackendForm;
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use Icinga\Forms\Config\UserBackend\DbBackendForm;
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use Icinga\Forms\Config\UserBackend\LdapBackendForm;
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use Icinga\Web\Form;
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/**
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* Form for managing user backends
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*/
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class UserBackendConfigForm extends ConfigForm
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{
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/**
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* The available user backend resources split by type
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*
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* @var array
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*/
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protected $resources;
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/**
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* The backend to load when displaying the form for the first time
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*
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* @var string
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*/
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protected $backendToLoad;
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/**
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* The loaded custom backends list
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*
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* @var array
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*/
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protected $customBackends;
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/**
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* Initialize this form
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*/
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public function init()
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{
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$this->setName('form_config_authbackend');
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$this->setSubmitLabel($this->translate('Save Changes'));
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$this->setValidatePartial(true);
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$this->customBackends = UserBackend::getCustomBackendConfigForms();
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}
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/**
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* Set the resource configuration to use
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*
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* @param Config $resourceConfig The resource configuration
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*
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* @return $this
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*
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* @throws ConfigurationError In case there are no valid resources for authentication available
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*/
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public function setResourceConfig(Config $resourceConfig)
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{
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$resources = array();
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foreach ($resourceConfig as $name => $resource) {
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if (in_array($resource->type, array('db', 'ldap'))) {
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$resources[$resource->type][] = $name;
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}
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}
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if (empty($resources)) {
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$externalBackends = $this->config->toArray();
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array_walk(
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$externalBackends,
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function (&$authBackendCfg) {
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if (! isset($authBackendCfg['backend']) || $authBackendCfg['backend'] !== 'external') {
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$authBackendCfg = null;
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}
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}
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);
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if (count(array_filter($externalBackends)) > 0 && (
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$this->backendToLoad === null || !isset($externalBackends[$this->backendToLoad])
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)) {
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throw new ConfigurationError($this->translate(
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'Could not find any valid user backend resources.'
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. ' Please configure a resource for authentication first.'
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));
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}
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}
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$this->resources = $resources;
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return $this;
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}
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/**
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* Return a form object for the given backend type
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*
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* @param string $type The backend type for which to return a form
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*
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* @return Form
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*
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* @throws InvalidArgumentException In case the given backend type is invalid
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*/
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public function getBackendForm($type)
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{
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switch ($type) {
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case 'db':
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$form = new DbBackendForm();
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$form->setResources(isset($this->resources['db']) ? $this->resources['db'] : array());
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break;
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case 'ldap':
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case 'msldap':
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$form = new LdapBackendForm();
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$form->setResources(isset($this->resources['ldap']) ? $this->resources['ldap'] : array());
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break;
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case 'external':
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$form = new ExternalBackendForm();
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break;
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default:
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if (isset($this->customBackends[$type])) {
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return new $this->customBackends[$type]();
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}
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throw new InvalidArgumentException(
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sprintf($this->translate('Invalid backend type "%s" provided'), $type)
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);
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}
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return $form;
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}
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/**
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* Populate the form with the given backend's config
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*
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* @param string $name
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*
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* @return $this
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*
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* @throws NotFoundError In case no backend with the given name is found
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*/
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public function load($name)
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{
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if (! $this->config->hasSection($name)) {
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throw new NotFoundError('No user backend called "%s" found', $name);
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}
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$this->backendToLoad = $name;
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return $this;
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}
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/**
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* Add a new user backend
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*
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* The backend to add is identified by the array-key `name'.
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*
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* @param array $data
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*
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* @return $this
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*
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* @throws InvalidArgumentException In case $data does not contain a backend name
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* @throws IcingaException In case a backend with the same name already exists
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*/
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public function add(array $data)
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{
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if (! isset($data['name'])) {
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throw new InvalidArgumentException('Key \'name\' missing');
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}
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$backendName = $data['name'];
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if ($this->config->hasSection($backendName)) {
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throw new IcingaException(
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$this->translate('A user backend with the name "%s" does already exist'),
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$backendName
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);
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}
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unset($data['name']);
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$this->config->setSection($backendName, $data);
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return $this;
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}
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/**
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* Edit a user backend
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*
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* @param string $name
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* @param array $data
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*
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* @return $this
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*
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* @throws NotFoundError In case no backend with the given name is found
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*/
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public function edit($name, array $data)
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{
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if (! $this->config->hasSection($name)) {
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throw new NotFoundError('No user backend called "%s" found', $name);
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}
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$backendConfig = $this->config->getSection($name);
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if (isset($data['name'])) {
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if ($data['name'] !== $name) {
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$this->config->removeSection($name);
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$name = $data['name'];
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}
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unset($data['name']);
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}
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$backendConfig->merge($data);
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$this->config->setSection($name, $backendConfig);
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return $this;
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}
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/**
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* Remove a user backend
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*
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* @param string $name
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*
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* @return $this
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*/
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public function delete($name)
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{
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$this->config->removeSection($name);
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return $this;
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}
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/**
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* Move the given user backend up or down in order
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*
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* @param string $name The name of the backend to be moved
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* @param int $position The new (absolute) position of the backend
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*
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* @return $this
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*
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* @throws NotFoundError In case no backend with the given name is found
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*/
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public function move($name, $position)
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{
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if (! $this->config->hasSection($name)) {
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throw new NotFoundError('No user backend called "%s" found', $name);
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}
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$backendOrder = $this->config->keys();
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array_splice($backendOrder, array_search($name, $backendOrder), 1);
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array_splice($backendOrder, $position, 0, $name);
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$newConfig = array();
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foreach ($backendOrder as $backendName) {
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$newConfig[$backendName] = $this->config->getSection($backendName);
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}
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$config = Config::fromArray($newConfig);
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$this->config = $config->setConfigFile($this->config->getConfigFile());
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return $this;
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}
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/**
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* Create and add elements to this form
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*
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* @param array $formData
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*/
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public function createElements(array $formData)
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{
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$backendTypes = array();
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$backendType = isset($formData['type']) ? $formData['type'] : null;
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if (isset($this->resources['db'])) {
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$backendTypes['db'] = $this->translate('Database');
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}
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if (isset($this->resources['ldap'])) {
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$backendTypes['ldap'] = 'LDAP';
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$backendTypes['msldap'] = 'ActiveDirectory';
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}
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$externalBackends = array_filter(
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$this->config->toArray(),
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function ($authBackendCfg) {
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return isset($authBackendCfg['backend']) && $authBackendCfg['backend'] === 'external';
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}
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);
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if ($backendType === 'external' || empty($externalBackends)) {
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$backendTypes['external'] = $this->translate('External');
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}
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$customBackendTypes = array_keys($this->customBackends);
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$backendTypes += array_combine($customBackendTypes, $customBackendTypes);
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if ($backendType === null) {
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$backendType = key($backendTypes);
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}
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$this->addElement(
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'select',
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'type',
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array(
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'ignore' => true,
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'required' => true,
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'autosubmit' => true,
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'label' => $this->translate('Backend Type'),
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'description' => $this->translate(
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'The type of the resource to use for this authenticaton provider'
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),
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'multiOptions' => $backendTypes
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)
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);
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if (isset($formData['skip_validation']) && $formData['skip_validation']) {
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// In case another error occured and the checkbox was displayed before
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$this->addSkipValidationCheckbox();
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}
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$this->addSubForm($this->getBackendForm($backendType)->create($formData), 'backend_form');
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}
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/**
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* Populate the configuration of the backend to load
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*/
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public function onRequest()
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{
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if ($this->backendToLoad) {
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$data = $this->config->getSection($this->backendToLoad)->toArray();
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$data['name'] = $this->backendToLoad;
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$data['type'] = $data['backend'];
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$this->populate($data);
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}
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}
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/**
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* Return whether the given values are valid
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*
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* @param array $formData The data to validate
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*
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* @return bool
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*/
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public function isValid($formData)
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{
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if (! parent::isValid($formData)) {
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return false;
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}
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if (($el = $this->getElement('skip_validation')) === null || false === $el->isChecked()) {
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$inspection = static::inspectUserBackend($this);
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if ($inspection && $inspection->hasError()) {
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$this->error($inspection->getError());
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if ($el === null) {
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$this->addSkipValidationCheckbox();
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}
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return false;
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}
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}
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return true;
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}
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/**
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* Create a user backend by using the given form's values and return its inspection results
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*
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* Returns null for non-inspectable backends.
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*
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* @param Form $form
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*
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* @return Inspection|null
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*/
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public static function inspectUserBackend(Form $form)
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{
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$backend = UserBackend::create(null, new ConfigObject($form->getValues()));
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if ($backend instanceof Inspectable) {
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return $backend->inspect();
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}
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}
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/**
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* Add a checkbox to the form by which the user can skip the connection validation
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*/
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protected function addSkipValidationCheckbox()
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{
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$this->addElement(
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'checkbox',
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'skip_validation',
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array(
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'order' => 0,
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'ignore' => true,
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'label' => $this->translate('Skip Validation'),
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'description' => $this->translate(
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'Check this box to enforce changes without validating that authentication is possible.'
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)
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)
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);
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}
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/**
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* Run the configured backend's inspection checks and show the result, if necessary
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*
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* This will only run any validation if the user pushed the 'backend_validation' button.
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*
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* @param array $formData
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*
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* @return bool
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*/
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public function isValidPartial(array $formData)
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{
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if (! parent::isValidPartial($formData)) {
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return false;
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}
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if ($this->getElement('backend_validation')->isChecked() && parent::isValid($formData)) {
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$inspection = static::inspectUserBackend($this);
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if ($inspection !== null) {
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$join = function ($e) use (&$join) {
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return is_array($e) ? join("\n", array_map($join, $e)) : $e;
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};
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$this->addElement(
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'note',
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'inspection_output',
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array(
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'order' => 0,
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'value' => '<strong>' . $this->translate('Validation Log') . "</strong>\n\n"
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. join("\n", array_map($join, $inspection->toArray())),
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'decorators' => array(
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'ViewHelper',
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array('HtmlTag', array('tag' => 'pre', 'class' => 'log-output')),
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)
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)
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);
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if ($inspection->hasError()) {
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$this->warning(sprintf(
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$this->translate('Failed to successfully validate the configuration: %s'),
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$inspection->getError()
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));
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return false;
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}
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}
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$this->info($this->translate('The configuration has been successfully validated.'));
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}
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return true;
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}
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/**
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* Add a submit button to this form and one to manually validate the configuration
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*
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* Calls parent::addSubmitButton() to add the submit button.
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*
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* @return $this
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*/
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public function addSubmitButton()
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{
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parent::addSubmitButton()
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->getElement('btn_submit')
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->setDecorators(array('ViewHelper'));
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$this->addElement(
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'submit',
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'backend_validation',
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array(
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'ignore' => true,
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'label' => $this->translate('Validate Configuration'),
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'data-progress-label' => $this->translate('Validation In Progress'),
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'decorators' => array('ViewHelper')
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)
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);
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$this->addDisplayGroup(
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array('btn_submit', 'backend_validation'),
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'submit_validation',
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array(
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'decorators' => array(
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'FormElements',
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array('HtmlTag', array('tag' => 'div', 'class' => 'control-group form-controls'))
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)
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)
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);
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return $this;
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}
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}
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