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<?php
namespace WPForms {
use AllowDynamicProperties;
use stdClass;
use WPForms_Form_Handler;
use WPForms_Process;
/**
* Main WPForms class.
*
* @since 1.0.0
*/
#[AllowDynamicProperties]
final class WPForms {
/**
* One is the loneliest number that you'll ever do.
*
* @since 1.0.0
*
* @var \WPForms\WPForms
*/
private static $instance;
/**
* Plugin version for enqueueing, etc.
* The value is got from WPFORMS_VERSION constant.
*
* @since 1.0.0
*
* @var string
*/
public $version = '';
/**
* Classes registry.
*
* @since 1.5.7
*
* @var array
*/
private $registry = [];
/**
* List of legacy public properties.
*
* @since 1.6.8
*
* @var string[]
*/
private $legacy_properties = [
'form',
'entry',
'entry_fields',
'entry_meta',
'frontend',
'process',
'smart_tags',
'license',
];
/**
* Paid returns true, free (Lite) returns false.
*
* @since 1.3.9
* @since 1.7.3 changed to private.
*
* @var bool
*/
private $pro = false;
/**
* Backward compatibility method for accessing the class registry in an old way,
* e.g. 'wpforms()->form' or 'wpforms()->entry'.
*
* @since 1.5.7
*
* @param string $name Name of the object to get.
*
* @return mixed|null
*/
public function __get( $name ) {
if ( $name === 'smart_tags' ) {
_deprecated_argument(
'wpforms()->smart_tags',
'1.6.7 of the WPForms plugin',
"Please use `wpforms()->get( 'smart_tags' )` instead."
);
}
if ( $name === 'pro' ) {
_deprecated_argument(
'wpforms()->pro',
'1.8.2.2 of the WPForms plugin',
'Please use `wpforms()->is_pro()` instead.'
);
return wpforms()->is_pro();
}
return $this->get( $name );
}
/**
* Main WPForms Instance.
*
* Only one instance of WPForms exists in memory at any one time.
* Also prevent the need to define globals all over the place.
*
* @since 1.0.0
*
* @return WPForms
*/
public static function instance() {
if (
self::$instance === null ||
! self::$instance instanceof self
) {
self::$instance = new self();
self::$instance->constants();
self::$instance->includes();
// Load Pro or Lite specific files.
if ( self::$instance->is_pro() ) {
self::$instance->registry['pro'] = require_once WPFORMS_PLUGIN_DIR . 'pro/wpforms-pro.php';
} else {
require_once WPFORMS_PLUGIN_DIR . 'lite/wpforms-lite.php';
}
add_action( 'plugins_loaded', [ self::$instance, 'objects' ], 10 );
}
return self::$instance;
}
/**
* Setup plugin constants.
* All the path/URL related constants are defined in main plugin file.
*
* @since 1.0.0
*/
private function constants() {
$this->version = WPFORMS_VERSION;
// Plugin Slug - Determine plugin type and set slug accordingly.
// This filter is documented in \WPForms\WPForms::is_pro.
if ( apply_filters( 'wpforms_allow_pro_version', file_exists( WPFORMS_PLUGIN_DIR . 'pro/wpforms-pro.php' ) ) ) {
$this->pro = true;
define( 'WPFORMS_PLUGIN_SLUG', 'wpforms' );
} else {
define( 'WPFORMS_PLUGIN_SLUG', 'wpforms-lite' );
}
}
/**
* Include files.
*
* @since 1.0.0
*/
private function includes() {
$this->error_handler();
require_once WPFORMS_PLUGIN_DIR . 'includes/class-db.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/functions.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/compat.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/fields/class-base.php';
$this->includes_magic();
// Global includes.
require_once WPFORMS_PLUGIN_DIR . 'includes/class-install.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/class-form.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/class-fields.php';
// TODO: class-templates.php should be loaded in admin area only.
require_once WPFORMS_PLUGIN_DIR . 'includes/class-templates.php';
// TODO: class-providers.php should be loaded in admin area only.
require_once WPFORMS_PLUGIN_DIR . 'includes/class-providers.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/class-process.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/class-widget.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/emails/class-emails.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/integrations.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/deprecated.php';
// Admin/Dashboard only includes, also in ajax.
if ( is_admin() ) {
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/admin.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-notices.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-menu.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/builder/class-builder.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/builder/functions.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-settings.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-welcome.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-editor.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-review.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-about.php';
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/ajax-actions.php';
}
}
/**
* Include the error handler to suppress deprecated messages from vendor folders.
*
* @since 1.8.5
*/
private function error_handler() {
require_once WPFORMS_PLUGIN_DIR . 'src/ErrorHandler.php';
( new ErrorHandler() )->init();
}
/**
* Including the new files with PHP 5.3 style.
*
* @since 1.4.7
*/
private function includes_magic() {
// Action Scheduler requires a special loading procedure.
require_once WPFORMS_PLUGIN_DIR . 'vendor/woocommerce/action-scheduler/action-scheduler.php';
// Autoload Composer packages.
require_once WPFORMS_PLUGIN_DIR . 'vendor/autoload.php';
// Load the class loader.
$this->register(
[
'name' => 'Loader',
'hook' => false,
]
);
/*
* Load email subsystem.
*/
add_action( 'wpforms_loaded', [ '\WPForms\Emails\Summaries', 'get_instance' ] );
/*
* Load admin components. Exclude from frontend.
*/
if ( is_admin() ) {
add_action( 'wpforms_loaded', [ '\WPForms\Admin\Loader', 'get_instance' ] );
}
/*
* Properly init the providers loader, that will handle all the related logic and further loading.
*/
add_action( 'wpforms_loaded', [ '\WPForms\Providers\Providers', 'get_instance' ] );
/*
* Properly init the integrations loader, that will handle all the related logic and further loading.
*/
add_action( 'wpforms_loaded', [ '\WPForms\Integrations\Loader', 'get_instance' ] );
}
/**
* Setup objects.
*
* @since 1.0.0
*/
public function objects() {
// Global objects.
$this->registry['form'] = new WPForms_Form_Handler();
$this->registry['process'] = new WPForms_Process();
/**
* Executes when all the WPForms stuff was loaded.
*
* @since 1.4.0
*/
do_action( 'wpforms_loaded' );
}
/**
* Register a class.
*
* @since 1.5.7
*
* @param array $class_data Class registration info.
*/
public function register( $class_data ) { // phpcs:ignore Generic.Metrics.CyclomaticComplexity.MaxExceeded, WPForms.PHP.HooksMethod.InvalidPlaceForAddingHooks
if ( empty( $class_data['name'] ) || ! is_string( $class_data['name'] ) ) {
return;
}
if ( isset( $class_data['condition'] ) && empty( $class_data['condition'] ) ) {
return;
}
$full_name = $this->is_pro() ? '\WPForms\Pro\\' . $class_data['name'] : '\WPForms\Lite\\' . $class_data['name'];
$full_name = class_exists( $full_name ) ? $full_name : '\WPForms\\' . $class_data['name'];
if ( ! class_exists( $full_name ) ) {
return;
}
$id = $class_data['id'] ?? '';
$id = $id ? preg_replace( '/[^a-z_]/', '', (string) $id ) : $id;
$hook = isset( $class_data['hook'] ) ? (string) $class_data['hook'] : 'wpforms_loaded';
$run = $class_data['run'] ?? 'init';
$priority = isset( $class_data['priority'] ) && is_int( $class_data['priority'] ) ? $class_data['priority'] : 10;
$callback = function () use ( $full_name, $id, $run ) {
// Instantiate class.
$instance = new $full_name();
$this->register_instance( $id, $instance );
if ( $run && method_exists( $instance, $run ) ) {
$instance->{$run}();
}
};
if ( $hook ) {
add_action( $hook, $callback, $priority );
} else {
$callback();
}
}
/**
* Register any class instance.
*
* @since 1.8.6
*
* @param string $id Class ID.
* @param object $instance Any class instance (object).
*/
public function register_instance( $id, $instance ) {
if ( $id && is_object( $instance ) && ! array_key_exists( $id, $this->registry ) ) {
$this->registry[ $id ] = $instance;
}
}
/**
* Register classes in bulk.
*
* @since 1.5.7
*
* @param array $classes Classes to register.
*/
public function register_bulk( $classes ) {
if ( ! is_array( $classes ) ) {
return;
}
foreach ( $classes as $class ) {
$this->register( $class );
}
}
/**
* Get a class instance from a registry.
*
* @since 1.5.7
*
* @param string $name Class name or an alias.
*
* @return mixed|stdClass|null
*/
public function get( $name ) {
if ( ! empty( $this->registry[ $name ] ) ) {
return $this->registry[ $name ];
}
// Backward compatibility for old public properties.
// Return null to save old condition for these properties.
if ( in_array( $name, $this->legacy_properties, true ) ) {
return isset( $this->{$name} ) ? $this->{$name} : null;
}
return new stdClass();
}
/**
* Get the list of all custom tables starting with `wpforms_*`.
*
* @since 1.6.3
*
* @return array List of table names.
*/
public function get_existing_custom_tables() {
global $wpdb;
$tables = $wpdb->get_results( "SHOW TABLES LIKE '{$wpdb->prefix}wpforms_%'", 'ARRAY_N' ); // phpcs:ignore
return ! empty( $tables ) ? wp_list_pluck( $tables, 0 ) : [];
}
/**
* Whether the current instance of the plugin is a paid version, or free.
*
* @since 1.7.3
*
* @return bool
*/
public function is_pro() {
/**
* Filters whether the current plugin version is pro.
*
* @since 1.7.3
*
* @param bool $pro Whether the current plugin version is pro.
*/
return (bool) apply_filters( 'wpforms_allow_pro_version', $this->pro );
}
}
}
namespace {
/**
* The function which returns the one WPForms instance.
*
* @since 1.0.0
*
* @return WPForms\WPForms
*/
function wpforms() {
return WPForms\WPForms::instance();
}
/**
* Adding an alias for backward-compatibility with plugins
* that still use class_exists( 'WPForms' )
* instead of function_exists( 'wpforms' ), which is preferred.
*
* In 1.5.0 we removed support for PHP 5.2
* and moved former WPForms class to a namespace: WPForms\WPForms.
*
* @since 1.5.1
*/
class_alias( 'WPForms\WPForms', 'WPForms' );
}