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nextcloud_server/lib/private/Settings/DeclarativeManager.php

420 lines
14 KiB
PHP

<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Settings;
use Exception;
use OC\AppFramework\Bootstrap\Coordinator;
use OC\AppFramework\Middleware\Security\Exceptions\NotAdminException;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\IAppConfig;
use OCP\IConfig;
use OCP\IGroupManager;
use OCP\IUser;
use OCP\Server;
use OCP\Settings\DeclarativeSettingsTypes;
use OCP\Settings\Events\DeclarativeSettingsGetValueEvent;
use OCP\Settings\Events\DeclarativeSettingsRegisterFormEvent;
use OCP\Settings\Events\DeclarativeSettingsSetValueEvent;
use OCP\Settings\IDeclarativeManager;
use OCP\Settings\IDeclarativeSettingsForm;
use OCP\Settings\IDeclarativeSettingsFormWithHandlers;
use Psr\Log\LoggerInterface;
/**
* @psalm-import-type DeclarativeSettingsValueTypes from IDeclarativeSettingsForm
* @psalm-import-type DeclarativeSettingsStorageType from IDeclarativeSettingsForm
* @psalm-import-type DeclarativeSettingsSectionType from IDeclarativeSettingsForm
* @psalm-import-type DeclarativeSettingsFormSchemaWithValues from IDeclarativeSettingsForm
* @psalm-import-type DeclarativeSettingsFormSchemaWithoutValues from IDeclarativeSettingsForm
*/
class DeclarativeManager implements IDeclarativeManager {
/** @var array<string, list<IDeclarativeSettingsForm>> */
private array $declarativeForms = [];
/**
* @var array<string, list<DeclarativeSettingsFormSchemaWithoutValues>>
*/
private array $appSchemas = [];
public function __construct(
private IEventDispatcher $eventDispatcher,
private IGroupManager $groupManager,
private Coordinator $coordinator,
private IConfig $config,
private IAppConfig $appConfig,
private LoggerInterface $logger,
) {
}
/**
* @inheritdoc
*/
public function registerSchema(string $app, array $schema): void {
$this->appSchemas[$app] ??= [];
if (!$this->validateSchema($app, $schema)) {
throw new Exception('Invalid schema. Please check the logs for more details.');
}
foreach ($this->appSchemas[$app] as $otherSchema) {
if ($otherSchema['id'] === $schema['id']) {
throw new Exception('Duplicate form IDs detected: ' . $schema['id']);
}
}
$fieldIDs = array_map(fn ($field) => $field['id'], $schema['fields']);
$otherFieldIDs = array_merge(...array_map(fn ($schema) => array_map(fn ($field) => $field['id'], $schema['fields']), $this->appSchemas[$app]));
$intersectionFieldIDs = array_intersect($fieldIDs, $otherFieldIDs);
if (count($intersectionFieldIDs) > 0) {
throw new Exception('Non unique field IDs detected: ' . join(', ', $intersectionFieldIDs));
}
$this->appSchemas[$app][] = $schema;
}
/**
* @inheritdoc
*/
public function loadSchemas(): void {
if (empty($this->declarativeForms)) {
$declarativeSettings = $this->coordinator->getRegistrationContext()->getDeclarativeSettings();
foreach ($declarativeSettings as $declarativeSetting) {
$app = $declarativeSetting->getAppId();
/** @var IDeclarativeSettingsForm $declarativeForm */
$declarativeForm = Server::get($declarativeSetting->getService());
$this->registerSchema($app, $declarativeForm->getSchema());
$this->declarativeForms[$app][] = $declarativeForm;
}
}
$this->eventDispatcher->dispatchTyped(new DeclarativeSettingsRegisterFormEvent($this));
}
/**
* @inheritdoc
*/
public function getFormIDs(IUser $user, string $type, string $section): array {
$isAdmin = $this->groupManager->isAdmin($user->getUID());
/** @var array<string, list<string>> $formIds */
$formIds = [];
foreach ($this->appSchemas as $app => $schemas) {
$ids = [];
usort($schemas, [$this, 'sortSchemasByPriorityCallback']);
foreach ($schemas as $schema) {
if ($schema['section_type'] === DeclarativeSettingsTypes::SECTION_TYPE_ADMIN && !$isAdmin) {
continue;
}
if ($schema['section_type'] === $type && $schema['section_id'] === $section) {
$ids[] = $schema['id'];
}
}
if (!empty($ids)) {
$formIds[$app] = array_merge($formIds[$app] ?? [], $ids);
}
}
return $formIds;
}
/**
* @inheritdoc
* @throws Exception
*/
public function getFormsWithValues(IUser $user, ?string $type, ?string $section): array {
$isAdmin = $this->groupManager->isAdmin($user->getUID());
$forms = [];
foreach ($this->appSchemas as $app => $schemas) {
foreach ($schemas as $schema) {
if ($type !== null && $schema['section_type'] !== $type) {
continue;
}
if ($section !== null && $schema['section_id'] !== $section) {
continue;
}
// If listing all fields skip the admin fields which a non-admin user has no access to
if ($type === null && $schema['section_type'] === 'admin' && !$isAdmin) {
continue;
}
$s = $schema;
$s['app'] = $app;
foreach ($s['fields'] as &$field) {
$field['value'] = $this->getValue($user, $app, $schema['id'], $field['id']);
}
unset($field);
/** @var DeclarativeSettingsFormSchemaWithValues $s */
$forms[] = $s;
}
}
usort($forms, [$this, 'sortSchemasByPriorityCallback']);
return $forms;
}
private function sortSchemasByPriorityCallback(mixed $a, mixed $b): int {
if ($a['priority'] === $b['priority']) {
return 0;
}
return $a['priority'] > $b['priority'] ? -1 : 1;
}
/**
* @return DeclarativeSettingsStorageType
*/
private function getStorageType(string $app, string $fieldId): string {
if (array_key_exists($app, $this->appSchemas)) {
foreach ($this->appSchemas[$app] as $schema) {
foreach ($schema['fields'] as $field) {
if ($field['id'] == $fieldId) {
if (array_key_exists('storage_type', $field)) {
return $field['storage_type'];
}
}
}
if (array_key_exists('storage_type', $schema)) {
return $schema['storage_type'];
}
}
}
return DeclarativeSettingsTypes::STORAGE_TYPE_INTERNAL;
}
/**
* @return DeclarativeSettingsSectionType
* @throws Exception
*/
private function getSectionType(string $app, string $fieldId): string {
if (array_key_exists($app, $this->appSchemas)) {
foreach ($this->appSchemas[$app] as $schema) {
foreach ($schema['fields'] as $field) {
if ($field['id'] == $fieldId) {
return $schema['section_type'];
}
}
}
}
throw new Exception('Unknown fieldId "' . $fieldId . '"');
}
/**
* @psalm-param DeclarativeSettingsSectionType $sectionType
* @throws NotAdminException
*/
private function assertAuthorized(IUser $user, string $sectionType): void {
if ($sectionType === 'admin' && !$this->groupManager->isAdmin($user->getUID())) {
throw new NotAdminException('Logged in user does not have permission to access these settings.');
}
}
/**
* @return DeclarativeSettingsValueTypes
* @throws Exception
* @throws NotAdminException
*/
private function getValue(IUser $user, string $app, string $formId, string $fieldId): mixed {
$sectionType = $this->getSectionType($app, $fieldId);
$this->assertAuthorized($user, $sectionType);
$storageType = $this->getStorageType($app, $fieldId);
switch ($storageType) {
case DeclarativeSettingsTypes::STORAGE_TYPE_EXTERNAL:
$form = $this->getForm($app, $formId);
if ($form !== null && $form instanceof IDeclarativeSettingsFormWithHandlers) {
return $form->getValue($fieldId, $user);
}
$event = new DeclarativeSettingsGetValueEvent($user, $app, $formId, $fieldId);
$this->eventDispatcher->dispatchTyped($event);
return $event->getValue();
case DeclarativeSettingsTypes::STORAGE_TYPE_INTERNAL:
return $this->getInternalValue($user, $app, $formId, $fieldId);
default:
throw new Exception('Unknown storage type "' . $storageType . '"');
}
}
/**
* @inheritdoc
*/
public function setValue(IUser $user, string $app, string $formId, string $fieldId, mixed $value): void {
$sectionType = $this->getSectionType($app, $fieldId);
$this->assertAuthorized($user, $sectionType);
$storageType = $this->getStorageType($app, $fieldId);
switch ($storageType) {
case DeclarativeSettingsTypes::STORAGE_TYPE_EXTERNAL:
$form = $this->getForm($app, $formId);
if ($form !== null && $form instanceof IDeclarativeSettingsFormWithHandlers) {
$form->setValue($fieldId, $value, $user);
break;
}
// fall back to event handling
$this->eventDispatcher->dispatchTyped(new DeclarativeSettingsSetValueEvent($user, $app, $formId, $fieldId, $value));
break;
case DeclarativeSettingsTypes::STORAGE_TYPE_INTERNAL:
$this->saveInternalValue($user, $app, $fieldId, $value);
break;
default:
throw new Exception('Unknown storage type "' . $storageType . '"');
}
}
/**
* If a declarative setting was registered as a form and not just a schema
* then this will yield the registering form.
*/
private function getForm(string $app, string $formId): ?IDeclarativeSettingsForm {
$allForms = $this->declarativeForms[$app] ?? [];
foreach ($allForms as $form) {
if ($form->getSchema()['id'] === $formId) {
return $form;
}
}
return null;
}
private function getInternalValue(IUser $user, string $app, string $formId, string $fieldId): mixed {
$sectionType = $this->getSectionType($app, $fieldId);
$defaultValue = $this->getDefaultValue($app, $formId, $fieldId);
switch ($sectionType) {
case DeclarativeSettingsTypes::SECTION_TYPE_ADMIN:
return $this->config->getAppValue($app, $fieldId, $defaultValue);
case DeclarativeSettingsTypes::SECTION_TYPE_PERSONAL:
return $this->config->getUserValue($user->getUID(), $app, $fieldId, $defaultValue);
default:
throw new Exception('Unknown section type "' . $sectionType . '"');
}
}
private function saveInternalValue(IUser $user, string $app, string $fieldId, mixed $value): void {
$sectionType = $this->getSectionType($app, $fieldId);
switch ($sectionType) {
case DeclarativeSettingsTypes::SECTION_TYPE_ADMIN:
$this->appConfig->setValueString($app, $fieldId, $value);
break;
case DeclarativeSettingsTypes::SECTION_TYPE_PERSONAL:
$this->config->setUserValue($user->getUID(), $app, $fieldId, $value);
break;
default:
throw new Exception('Unknown section type "' . $sectionType . '"');
}
}
private function getDefaultValue(string $app, string $formId, string $fieldId): mixed {
foreach ($this->appSchemas[$app] as $schema) {
if ($schema['id'] === $formId) {
foreach ($schema['fields'] as $field) {
if ($field['id'] === $fieldId) {
if (isset($field['default'])) {
if (is_array($field['default'])) {
return json_encode($field['default']);
}
return $field['default'];
}
}
}
}
}
return null;
}
private function validateSchema(string $appId, array $schema): bool {
if (!isset($schema['id'])) {
$this->logger->warning('Attempt to register a declarative settings schema with no id', ['app' => $appId]);
return false;
}
$formId = $schema['id'];
if (!isset($schema['section_type'])) {
$this->logger->warning('Declarative settings: missing section_type', ['app' => $appId, 'form_id' => $formId]);
return false;
}
if (!in_array($schema['section_type'], [DeclarativeSettingsTypes::SECTION_TYPE_ADMIN, DeclarativeSettingsTypes::SECTION_TYPE_PERSONAL])) {
$this->logger->warning('Declarative settings: invalid section_type', ['app' => $appId, 'form_id' => $formId, 'section_type' => $schema['section_type']]);
return false;
}
if (!isset($schema['section_id'])) {
$this->logger->warning('Declarative settings: missing section_id', ['app' => $appId, 'form_id' => $formId]);
return false;
}
if (!isset($schema['storage_type'])) {
$this->logger->warning('Declarative settings: missing storage_type', ['app' => $appId, 'form_id' => $formId]);
return false;
}
if (!in_array($schema['storage_type'], [DeclarativeSettingsTypes::STORAGE_TYPE_EXTERNAL, DeclarativeSettingsTypes::STORAGE_TYPE_INTERNAL])) {
$this->logger->warning('Declarative settings: invalid storage_type', ['app' => $appId, 'form_id' => $formId, 'storage_type' => $schema['storage_type']]);
return false;
}
if (!isset($schema['title'])) {
$this->logger->warning('Declarative settings: missing title', ['app' => $appId, 'form_id' => $formId]);
return false;
}
if (!isset($schema['fields']) || !is_array($schema['fields'])) {
$this->logger->warning('Declarative settings: missing or invalid fields', ['app' => $appId, 'form_id' => $formId]);
return false;
}
foreach ($schema['fields'] as $field) {
if (!isset($field['id'])) {
$this->logger->warning('Declarative settings: missing field id', ['app' => $appId, 'form_id' => $formId, 'field' => $field]);
return false;
}
$fieldId = $field['id'];
if (!isset($field['title'])) {
$this->logger->warning('Declarative settings: missing field title', ['app' => $appId, 'form_id' => $formId, 'field_id' => $fieldId]);
return false;
}
if (!isset($field['type'])) {
$this->logger->warning('Declarative settings: missing field type', ['app' => $appId, 'form_id' => $formId, 'field_id' => $fieldId]);
return false;
}
if (!in_array($field['type'], [
DeclarativeSettingsTypes::MULTI_SELECT, DeclarativeSettingsTypes::MULTI_CHECKBOX, DeclarativeSettingsTypes::RADIO,
DeclarativeSettingsTypes::SELECT, DeclarativeSettingsTypes::CHECKBOX,
DeclarativeSettingsTypes::URL, DeclarativeSettingsTypes::EMAIL, DeclarativeSettingsTypes::NUMBER,
DeclarativeSettingsTypes::TEL, DeclarativeSettingsTypes::TEXT, DeclarativeSettingsTypes::PASSWORD,
])) {
$this->logger->warning('Declarative settings: invalid field type', [
'app' => $appId, 'form_id' => $formId, 'field_id' => $fieldId, 'type' => $field['type'],
]);
return false;
}
if (!$this->validateField($appId, $formId, $field)) {
return false;
}
}
return true;
}
private function validateField(string $appId, string $formId, array $field): bool {
$fieldId = $field['id'];
if (in_array($field['type'], [
DeclarativeSettingsTypes::MULTI_SELECT, DeclarativeSettingsTypes::MULTI_CHECKBOX, DeclarativeSettingsTypes::RADIO,
DeclarativeSettingsTypes::SELECT
])) {
if (!isset($field['options'])) {
$this->logger->warning('Declarative settings: missing field options', ['app' => $appId, 'form_id' => $formId, 'field_id' => $fieldId]);
return false;
}
if (!is_array($field['options'])) {
$this->logger->warning('Declarative settings: field options should be an array', ['app' => $appId, 'form_id' => $formId, 'field_id' => $fieldId]);
return false;
}
}
return true;
}
}