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<?php
declare(strict_types=1);
namespace SimplyBook\Features;
use SimplyBook\Support\Helpers\Storages\RequestStorage;
use SimplyBook\Support\Helpers\Storages\EnvironmentConfig;
/**
* Each Feature should have a {FeatureName}Loader class that extends this
* abstract loader. The {@see FeatureManager} will use the loader to determine
* if a feature should be loaded.
*
* @internal Without loading all the feature classes, composer will prevent
* requiring the files entirely. Even tho the Feature namespace falls
* withing the psr-4 scope.
*/
abstract class AbstractLoader
{
protected EnvironmentConfig $env;
protected RequestStorage $request;
public function __construct(EnvironmentConfig $env, RequestStorage $request)
{
$this->env = $env;
$this->request = $request;
}
/**
* Method should return true if the feature is enabled. This can check
* setting values or user capabilities for example.
*/
abstract public function isEnabled(): bool;
/**
* Method should return true if the context of the user is in the scope of
* the feature to be loaded. For example: some features only need to load
* on our dashboard and others also in each REST API request.
*/
abstract public function inScope(): bool;
/**
* Check if the current user is on the Dashboard page.
* @todo Responsibility for retrieving the dashboard "page" value should
* be added somewhere and it should be globally accessible.
*/
protected function userIsOnDashboard(): bool
{
$pageVisitedByUser = $this->request->getString('global.page');
$dashboardUrl = $this->env->getString('plugin.dashboard_url');
$pluginPageQueryString = wp_parse_url($dashboardUrl, PHP_URL_QUERY);
parse_str($pluginPageQueryString, $parsedQuery);
$pluginDashboardPage = ($parsedQuery['page'] ?? '');
return $pageVisitedByUser === $pluginDashboardPage;
}
/**
* Check if the current request is a WP JSON request. This is better than
* the WordPress native function `wp_is_json_request()`, because that
* returns false when visiting /wp-json/ or ?rest_route= (for plain
* permalinks) endpoint. We need a true value there to activate
* features that register REST routes. For example
* {@see \SimplyBook\Features\Onboarding\OnboardingController}
*
* @internal Ignore the phpcs errors for this method, as they are false
* positives. We do not actually use the $_GET or $_SERVER variables
* directly, but we need to check if they are set and contain the
* expected values.
*/
protected function requestIsRestRequest(): bool
{
$pluginHttpNamespace = $this->env->getString('http.namespace');
$restUrlPrefix = trailingslashit(rest_get_url_prefix());
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
$currentRequestUri = ($_SERVER['REQUEST_URI'] ?? '');
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized, WordPress.Security.NonceVerification.Recommended
$isPlainPermalink = (
isset($_GET['rest_route'])
&& (strpos($_GET['rest_route'], $pluginHttpNamespace) !== false)
);
return (strpos($currentRequestUri, $restUrlPrefix) !== false) || $isPlainPermalink;
}
}