804 lines
22 KiB
PHP
804 lines
22 KiB
PHP
<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
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/**
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* Simple Payments lets users embed a PayPal button fully integrated with wpcom to sell products on the site.
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* This is not a proper module yet, because not all the pieces are in place. Until everything is shipped, it can be turned
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* into module that can be enabled/disabled.
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*
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* @package automattic/jetpack
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*/
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use Automattic\Jetpack\Current_Plan as Jetpack_Plan;
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/**
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* Jetpack_Simple_Payments
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*/
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class Jetpack_Simple_Payments {
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// These have to be under 20 chars because that is CPT limit.
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/**
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* Post type order.
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*
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* @var string
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*/
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public static $post_type_order = 'jp_pay_order';
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/**
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* Post type product.
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*
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* @var string
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*/
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public static $post_type_product = 'jp_pay_product';
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/**
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* Define simple payment shortcode.
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*
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* @var string
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*/
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public static $shortcode = 'simple-payment';
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/**
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* Define simple payment CSS prefix.
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*
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* @var string
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*/
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public static $css_classname_prefix = 'jetpack-simple-payments';
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/**
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* Which plan the user is on.
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*
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* @var string value_bundle or jetpack_premium
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*/
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public static $required_plan;
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/**
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* Instance of the class.
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*
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* @var Jetpack_Simple_Payments
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*/
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private static $instance;
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/**
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* Construction function.
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*/
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private function __construct() {}
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/**
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* Original singleton.
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*
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* @todo Remove this when nothing calles getInstance anymore.
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*
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* @deprecated 10.8
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*/
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public static function getInstance() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
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_deprecated_function( __METHOD__, 'Jetpack 10.7.0', 'Jetpack_Simple_Payments::get_instance' );
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return self::get_instance();
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}
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/**
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* Create instance of class.
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*/
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public static function get_instance() {
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if ( ! self::$instance ) {
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self::$instance = new self();
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self::$instance->register_init_hooks();
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self::$required_plan = ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ? 'value_bundle' : 'jetpack_premium';
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}
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return self::$instance;
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}
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/**
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* Register scripts and styles.
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*/
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private function register_scripts_and_styles() {
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/**
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* Paypal heavily discourages putting that script in your own server:
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*
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* @see https://developer.paypal.com/docs/integration/direct/express-checkout/integration-jsv4/add-paypal-button/
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*/
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wp_register_script( // phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion -- Ignored here instead of on the $ver param line since wpcom isn't in sync with ruleset changes in: https://github.com/Automattic/jetpack/pull/28199
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'paypal-checkout-js',
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'https://www.paypalobjects.com/api/checkout.js',
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array(),
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null, // phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion
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true
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);
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wp_register_script(
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'jetpack-paypal-express-checkout',
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plugins_url( '/paypal-express-checkout.js', __FILE__ ),
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array( 'jquery', 'paypal-checkout-js' ),
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JETPACK__VERSION,
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false
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);
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wp_register_style(
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'jetpack-simple-payments',
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plugins_url( '/simple-payments.css', __FILE__ ),
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array( 'dashicons' ),
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JETPACK__VERSION,
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false
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);
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}
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/**
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* Register init hooks.
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*/
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private function register_init_hooks() {
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add_action( 'init', array( $this, 'init_hook_action' ) );
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add_action( 'rest_api_init', array( $this, 'register_meta_fields_in_rest_api' ) );
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}
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/**
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* Register the shortcode.
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*/
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private function register_shortcode() {
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add_shortcode( self::$shortcode, array( $this, 'parse_shortcode' ) );
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}
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/**
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* Actions that are run on init.
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*/
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public function init_hook_action() {
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add_filter( 'rest_api_allowed_post_types', array( $this, 'allow_rest_api_types' ) );
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add_filter( 'jetpack_sync_post_meta_whitelist', array( $this, 'allow_sync_post_meta' ) );
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if ( ! is_admin() ) {
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$this->register_scripts_and_styles();
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}
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$this->register_shortcode();
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$this->setup_cpts();
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add_filter( 'the_content', array( $this, 'remove_auto_paragraph_from_product_description' ), 0 );
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}
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/**
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* Enqueue the static assets needed in the frontend.
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*/
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public function enqueue_frontend_assets() {
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if ( ! wp_style_is( 'jetpack-simple-payments', 'enqueued' ) ) {
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wp_enqueue_style( 'jetpack-simple-payments' );
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}
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if ( ! wp_script_is( 'jetpack-paypal-express-checkout', 'enqueued' ) ) {
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wp_enqueue_script( 'jetpack-paypal-express-checkout' );
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}
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}
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/**
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* Add an inline script for setting up the PayPal checkout button.
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*
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* @param int $id Product ID.
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* @param int $dom_id ID of the DOM element with the purchase message.
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* @param boolean $is_multiple Whether multiple items of the same product can be purchased.
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*/
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public function setup_paypal_checkout_button( $id, $dom_id, $is_multiple ) {
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wp_add_inline_script(
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'jetpack-paypal-express-checkout',
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sprintf(
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"try{PaypalExpressCheckout.renderButton( '%d', '%d', '%s', '%d' );}catch(e){}",
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esc_js( $this->get_blog_id() ),
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esc_js( $id ),
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esc_js( $dom_id ),
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esc_js( $is_multiple )
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)
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);
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}
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/**
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* Remove auto paragraph from product description.
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*
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* @param string $content - the content of the post.
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*/
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public function remove_auto_paragraph_from_product_description( $content ) {
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if ( get_post_type() === self::$post_type_product ) {
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remove_filter( 'the_content', 'wpautop' );
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}
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return $content;
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}
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/** Return the blog ID */
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public function get_blog_id() {
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if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
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return get_current_blog_id();
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}
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return Jetpack_Options::get_option( 'id' );
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}
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/**
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* Used to check whether Simple Payments are enabled for given site.
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*
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* @return bool True if Simple Payments are enabled, false otherwise.
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*/
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public function is_enabled_jetpack_simple_payments() {
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/**
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* Can be used by plugin authors to disable the conflicting output of Simple Payments.
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*
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* @since 6.3.0
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*
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* @param bool True if Simple Payments should be disabled, false otherwise.
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*/
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if ( apply_filters( 'jetpack_disable_simple_payments', false ) ) {
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return false;
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}
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return ( ( defined( 'IS_WPCOM' ) && IS_WPCOM )
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|| Jetpack::is_connection_ready() )
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&&
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Jetpack_Plan::supports( 'simple-payments' );
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}
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/**
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* Get a WP_Post representation of a product
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*
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* @param int $id The ID of the product.
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*
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* @return array|false|WP_Post
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*/
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private function get_product( $id ) {
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if ( ! $id ) {
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return false;
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}
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$product = get_post( $id );
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if ( ! $product || is_wp_error( $product ) ) {
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return false;
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}
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if ( $product->post_type !== self::$post_type_product || 'publish' !== $product->post_status ) {
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return false;
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}
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return $product;
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}
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/**
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* Creates the content from a shortcode
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*
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* @param array $attrs Shortcode attributes.
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* @param mixed $content unused.
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*
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* @return string|void
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*/
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public function parse_shortcode( $attrs, $content = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
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if ( empty( $attrs['id'] ) ) {
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return;
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}
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$product = $this->get_product( $attrs['id'] );
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if ( ! $product ) {
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return;
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}
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// We allow for overriding the presentation labels.
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$data = shortcode_atts(
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array(
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'blog_id' => $this->get_blog_id(),
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'dom_id' => uniqid( self::$css_classname_prefix . '-' . $product->ID . '_', true ),
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'class' => self::$css_classname_prefix . '-' . $product->ID,
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'title' => get_the_title( $product ),
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'description' => $product->post_content,
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'cta' => get_post_meta( $product->ID, 'spay_cta', true ),
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'multiple' => get_post_meta( $product->ID, 'spay_multiple', true ) || '0',
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),
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$attrs
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);
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$data['price'] = $this->format_price(
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get_post_meta( $product->ID, 'spay_price', true ),
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get_post_meta( $product->ID, 'spay_currency', true )
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);
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$data['id'] = $attrs['id'];
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if ( ! $this->is_enabled_jetpack_simple_payments() ) {
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if ( jetpack_is_frontend() ) {
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return $this->output_admin_warning( $data );
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}
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return;
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}
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$this->enqueue_frontend_assets();
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$this->setup_paypal_checkout_button( $attrs['id'], $data['dom_id'], $data['multiple'] );
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return $this->output_shortcode( $data );
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}
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/**
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* Output an admin warning if user can't use Pay with PayPal.
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*
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* @param array $data unused.
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*/
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public function output_admin_warning( $data ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
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if ( ! current_user_can( 'manage_options' ) ) {
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return;
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}
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require_once JETPACK__PLUGIN_DIR . '_inc/lib/components.php';
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return Jetpack_Components::render_upgrade_nudge(
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array(
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'plan' => self::$required_plan,
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)
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);
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}
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/**
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* Get the HTML output to use as PayPal purchase box.
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*
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* @param string $dom_id ID of the DOM element with the purchase message.
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* @param boolean $is_multiple Whether multiple items of the same product can be purchased.
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*
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* @return string
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*/
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public function output_purchase_box( $dom_id, $is_multiple ) {
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$items = '';
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$css_prefix = self::$css_classname_prefix;
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if ( $is_multiple ) {
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$items = sprintf(
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'
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<div class="%1$s">
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<input class="%2$s" type="number" value="1" min="1" id="%3$s" />
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</div>
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',
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esc_attr( "{$css_prefix}-items" ),
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esc_attr( "{$css_prefix}-items-number" ),
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esc_attr( "{$dom_id}_number" )
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);
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}
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return sprintf(
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'<div class="%1$s" id="%2$s"></div><div class="%3$s">%4$s<div class="%5$s" id="%6$s"></div></div>',
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esc_attr( "{$css_prefix}-purchase-message" ),
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esc_attr( "{$dom_id}-message-container" ),
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esc_attr( "{$css_prefix}-purchase-box" ),
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$items,
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esc_attr( "{$css_prefix}-button" ),
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esc_attr( "{$dom_id}_button" )
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);
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}
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/**
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* Get the HTML output to replace the `simple-payments` shortcode.
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*
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* @param array $data Product data.
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* @return string
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*/
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public function output_shortcode( $data ) {
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$css_prefix = self::$css_classname_prefix;
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$image = '';
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if ( has_post_thumbnail( $data['id'] ) ) {
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$image = sprintf(
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'<div class="%1$s"><div class="%2$s">%3$s</div></div>',
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esc_attr( "{$css_prefix}-product-image" ),
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esc_attr( "{$css_prefix}-image" ),
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get_the_post_thumbnail( $data['id'], 'full' )
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);
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}
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return sprintf(
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'
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<div class="%1$s">
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<div class="%2$s">
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%3$s
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<div class="%4$s">
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<div class="%5$s"><p>%6$s</p></div>
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<div class="%7$s"><p>%8$s</p></div>
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<div class="%9$s"><p>%10$s</p></div>
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%11$s
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</div>
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</div>
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</div>
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',
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esc_attr( "{$data['class']} {$css_prefix}-wrapper" ),
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esc_attr( "{$css_prefix}-product" ),
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$image,
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esc_attr( "{$css_prefix}-details" ),
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esc_attr( "{$css_prefix}-title" ),
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esc_html( $data['title'] ),
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esc_attr( "{$css_prefix}-description" ),
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wp_kses( $data['description'], wp_kses_allowed_html( 'post' ) ),
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esc_attr( "{$css_prefix}-price" ),
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esc_html( $data['price'] ),
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$this->output_purchase_box( $data['dom_id'], $data['multiple'] )
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);
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}
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/**
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* Format a price with currency
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*
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* Uses currency-aware formatting to output a formatted price with a simple fallback.
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*
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* Largely inspired by WordPress.com's Store_Price::display_currency
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*
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* @param string $price Price.
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* @param string $currency Currency.
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* @return string Formatted price.
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*/
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private function format_price( $price, $currency ) {
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require_once JETPACK__PLUGIN_DIR . '/_inc/lib/class-jetpack-currencies.php';
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return Jetpack_Currencies::format_price( $price, $currency );
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}
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/**
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* Allows custom post types to be used by REST API.
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*
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* @param array $post_types - the allows post types.
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* @see hook 'rest_api_allowed_post_types'
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* @return array
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*/
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public function allow_rest_api_types( $post_types ) {
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$post_types[] = self::$post_type_order;
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$post_types[] = self::$post_type_product;
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return $post_types;
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}
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/**
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* Merge $post_meta with additional meta information.
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*
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* @param array $post_meta - the post's meta information.
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*/
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public function allow_sync_post_meta( $post_meta ) {
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return array_merge(
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$post_meta,
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array(
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'spay_paypal_id',
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'spay_status',
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'spay_product_id',
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'spay_quantity',
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'spay_price',
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'spay_customer_email',
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'spay_currency',
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'spay_cta',
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'spay_email',
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'spay_multiple',
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'spay_formatted_price',
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)
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);
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}
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/**
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* Enable Simple payments custom meta values for access through the REST API.
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* Field’s value will be exposed on a .meta key in the endpoint response,
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* and WordPress will handle setting up the callbacks for reading and writing
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* to that meta key.
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*
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* @link https://developer.wordpress.org/rest-api/extending-the-rest-api/modifying-responses/
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*/
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public function register_meta_fields_in_rest_api() {
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register_meta(
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'post',
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'spay_price',
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array(
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'description' => esc_html__( 'Simple payments; price.', 'jetpack' ),
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'object_subtype' => self::$post_type_product,
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'sanitize_callback' => array( $this, 'sanitize_price' ),
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'show_in_rest' => true,
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'single' => true,
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'type' => 'number',
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)
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);
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register_meta(
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'post',
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'spay_currency',
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array(
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'description' => esc_html__( 'Simple payments; currency code.', 'jetpack' ),
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'object_subtype' => self::$post_type_product,
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'sanitize_callback' => array( $this, 'sanitize_currency' ),
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'show_in_rest' => true,
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'single' => true,
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'type' => 'string',
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)
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);
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register_meta(
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'post',
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'spay_cta',
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array(
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'description' => esc_html__( 'Simple payments; text with "Buy" or other CTA', 'jetpack' ),
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'object_subtype' => self::$post_type_product,
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'sanitize_callback' => 'sanitize_text_field',
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'show_in_rest' => true,
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'single' => true,
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'type' => 'string',
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)
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);
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register_meta(
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'post',
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'spay_multiple',
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array(
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'description' => esc_html__( 'Simple payments; allow multiple items', 'jetpack' ),
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'object_subtype' => self::$post_type_product,
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'sanitize_callback' => 'rest_sanitize_boolean',
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'show_in_rest' => true,
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'single' => true,
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'type' => 'boolean',
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)
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);
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register_meta(
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'post',
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'spay_email',
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array(
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'description' => esc_html__( 'Simple payments button; paypal email.', 'jetpack' ),
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'object_subtype' => self::$post_type_product,
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'sanitize_callback' => 'sanitize_email',
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'show_in_rest' => true,
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||
'single' => true,
|
||
'type' => 'string',
|
||
)
|
||
);
|
||
|
||
register_meta(
|
||
'post',
|
||
'spay_status',
|
||
array(
|
||
'description' => esc_html__( 'Simple payments; status.', 'jetpack' ),
|
||
'object_subtype' => self::$post_type_product,
|
||
'sanitize_callback' => 'sanitize_text_field',
|
||
'show_in_rest' => true,
|
||
'single' => true,
|
||
'type' => 'string',
|
||
)
|
||
);
|
||
}
|
||
|
||
/**
|
||
* Sanitize three-character ISO-4217 Simple payments currency
|
||
*
|
||
* List has to be in sync with list at the block's client side and widget's backend side:
|
||
*
|
||
* @param array $currency - list of currencies.
|
||
* @link https://github.com/Automattic/jetpack/blob/31efa189ad223c0eb7ad085ac0650a23facf9ef5/extensions/blocks/simple-payments/constants.js#L9-L39
|
||
* @link https://github.com/Automattic/jetpack/blob/31efa189ad223c0eb7ad085ac0650a23facf9ef5/modules/widgets/simple-payments.php#L19-L44
|
||
*
|
||
* Currencies should be supported by PayPal:
|
||
* @link https://developer.paypal.com/docs/api/reference/currency-codes/
|
||
*
|
||
* Indian Rupee (INR) not supported because at the time of the creation of this file
|
||
* because it's limited to in-country PayPal India accounts only.
|
||
* Discussion: https://github.com/Automattic/wp-calypso/pull/28236
|
||
*/
|
||
public static function sanitize_currency( $currency ) {
|
||
$valid_currencies = array(
|
||
'USD',
|
||
'EUR',
|
||
'AUD',
|
||
'BRL',
|
||
'CAD',
|
||
'CZK',
|
||
'DKK',
|
||
'HKD',
|
||
'HUF',
|
||
'ILS',
|
||
'JPY',
|
||
'MYR',
|
||
'MXN',
|
||
'TWD',
|
||
'NZD',
|
||
'NOK',
|
||
'PHP',
|
||
'PLN',
|
||
'GBP',
|
||
'RUB',
|
||
'SGD',
|
||
'SEK',
|
||
'CHF',
|
||
'THB',
|
||
);
|
||
|
||
return in_array( $currency, $valid_currencies, true ) ? $currency : false;
|
||
}
|
||
|
||
/**
|
||
* Sanitize price:
|
||
*
|
||
* Positive integers and floats
|
||
* Supports two decimal places.
|
||
* Maximum length: 10.
|
||
*
|
||
* See `price` from PayPal docs:
|
||
*
|
||
* @link https://developer.paypal.com/docs/api/orders/v1/#definition-item
|
||
*
|
||
* @param string $price - the price we want to sanitize.
|
||
* @return null|string
|
||
*/
|
||
public static function sanitize_price( $price ) {
|
||
return preg_match( '/^[0-9]{0,10}(\.[0-9]{0,2})?$/', $price ) ? $price : false;
|
||
}
|
||
|
||
/**
|
||
* Sets up the custom post types for the module.
|
||
*/
|
||
public function setup_cpts() {
|
||
/*
|
||
* ORDER data structure. holds:
|
||
* title = customer_name | 4xproduct_name
|
||
* excerpt = customer_name + customer contact info + customer notes from paypal form
|
||
* metadata:
|
||
* spay_paypal_id - paypal id of transaction
|
||
* spay_status
|
||
* spay_product_id - post_id of bought product
|
||
* spay_quantity - quantity of product
|
||
* spay_price - item price at the time of purchase
|
||
* spay_customer_email - customer email
|
||
* ... (WIP)
|
||
*/
|
||
$order_capabilities = array(
|
||
'edit_post' => 'edit_posts',
|
||
'read_post' => 'read_private_posts',
|
||
'delete_post' => 'delete_posts',
|
||
'edit_posts' => 'edit_posts',
|
||
'edit_others_posts' => 'edit_others_posts',
|
||
'publish_posts' => 'publish_posts',
|
||
'read_private_posts' => 'read_private_posts',
|
||
);
|
||
$order_args = array(
|
||
'label' => esc_html_x( 'Order', 'noun: a quantity of goods or items purchased or sold', 'jetpack' ),
|
||
'description' => esc_html__( 'Simple Payments orders', 'jetpack' ),
|
||
'supports' => array( 'custom-fields', 'excerpt' ),
|
||
'hierarchical' => false,
|
||
'public' => false,
|
||
'show_ui' => false,
|
||
'show_in_menu' => false,
|
||
'show_in_admin_bar' => false,
|
||
'show_in_nav_menus' => false,
|
||
'can_export' => true,
|
||
'has_archive' => false,
|
||
'exclude_from_search' => true,
|
||
'publicly_queryable' => false,
|
||
'rewrite' => false,
|
||
'capabilities' => $order_capabilities,
|
||
'show_in_rest' => true,
|
||
);
|
||
register_post_type( self::$post_type_order, $order_args );
|
||
|
||
/*
|
||
* PRODUCT data structure. Holds:
|
||
* title - title
|
||
* content - description
|
||
* thumbnail - image
|
||
* metadata:
|
||
* spay_price - price
|
||
* spay_formatted_price
|
||
* spay_currency - currency code
|
||
* spay_cta - text with "Buy" or other CTA
|
||
* spay_email - paypal email
|
||
* spay_multiple - allow for multiple items
|
||
* spay_status - status. { enabled | disabled }
|
||
*/
|
||
$product_capabilities = array(
|
||
'edit_post' => 'edit_posts',
|
||
'read_post' => 'read_private_posts',
|
||
'delete_post' => 'delete_posts',
|
||
'edit_posts' => 'publish_posts',
|
||
'edit_others_posts' => 'edit_others_posts',
|
||
'publish_posts' => 'publish_posts',
|
||
'read_private_posts' => 'read_private_posts',
|
||
);
|
||
$product_args = array(
|
||
'label' => esc_html__( 'Product', 'jetpack' ),
|
||
'description' => esc_html__( 'Simple Payments products', 'jetpack' ),
|
||
'supports' => array( 'title', 'editor', 'thumbnail', 'custom-fields', 'author' ),
|
||
'hierarchical' => false,
|
||
'public' => false,
|
||
'show_ui' => false,
|
||
'show_in_menu' => false,
|
||
'show_in_admin_bar' => false,
|
||
'show_in_nav_menus' => false,
|
||
'can_export' => true,
|
||
'has_archive' => false,
|
||
'exclude_from_search' => true,
|
||
'publicly_queryable' => false,
|
||
'rewrite' => false,
|
||
'capabilities' => $product_capabilities,
|
||
'show_in_rest' => true,
|
||
);
|
||
register_post_type( self::$post_type_product, $product_args );
|
||
}
|
||
|
||
/**
|
||
* Validate the block attributes
|
||
*
|
||
* @param array $attrs The block attributes, expected to contain:
|
||
* * email - an email address.
|
||
* * price - a float between 0.01 and 9999999999.99.
|
||
* * productId - the ID of the product being paid for.
|
||
*
|
||
* @return bool
|
||
*/
|
||
public function is_valid( $attrs ) {
|
||
if ( ! $this->validate_paypal_email( $attrs ) ) {
|
||
return false;
|
||
}
|
||
|
||
if ( ! $this->validate_price( $attrs ) ) {
|
||
return false;
|
||
}
|
||
|
||
if ( ! $this->validate_product( $attrs ) ) {
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Check that the email address to make a payment to is valid
|
||
*
|
||
* @param array $attrs Key-value array of attributes.
|
||
*
|
||
* @return boolean
|
||
*/
|
||
private function validate_paypal_email( $attrs ) {
|
||
if ( empty( $attrs['email'] ) ) {
|
||
return false;
|
||
}
|
||
return (bool) filter_var( $attrs['email'], FILTER_VALIDATE_EMAIL );
|
||
}
|
||
|
||
/**
|
||
* Check that the price is valid
|
||
*
|
||
* @param array $attrs Key-value array of attributes.
|
||
*
|
||
* @return bool
|
||
*/
|
||
private function validate_price( $attrs ) {
|
||
if ( empty( $attrs['price'] ) ) {
|
||
return false;
|
||
}
|
||
return (bool) self::sanitize_price( $attrs['price'] );
|
||
}
|
||
|
||
/**
|
||
* Check that the stored product is valid
|
||
*
|
||
* Valid means it has a title, and the currency is accepted.
|
||
*
|
||
* @param array $attrs Key-value array of attributes.
|
||
*
|
||
* @return bool
|
||
*/
|
||
private function validate_product( $attrs ) {
|
||
if ( empty( $attrs['productId'] ) ) {
|
||
return false;
|
||
}
|
||
$product = $this->get_product( $attrs['productId'] );
|
||
if ( ! $product ) {
|
||
return false;
|
||
}
|
||
// This title is the one used by paypal, it's set from the title set in the block content, unless the block
|
||
// content title is blank.
|
||
if ( ! get_the_title( $product ) ) {
|
||
return false;
|
||
}
|
||
|
||
$currency = get_post_meta( $product->ID, 'spay_currency', true );
|
||
return (bool) self::sanitize_currency( $currency );
|
||
}
|
||
|
||
/**
|
||
* Format a price for display
|
||
*
|
||
* Largely taken from WordPress.com Store_Price class
|
||
*
|
||
* The currency array will have the shape:
|
||
* format => string sprintf format with placeholders `%1$s`: Symbol `%2$s`: Price.
|
||
* symbol => string Symbol string
|
||
* desc => string Text description of currency
|
||
* decimal => int Number of decimal places
|
||
*
|
||
* @param string $the_currency The desired currency, e.g. 'USD'.
|
||
* @return ?array Currency object or null if not found.
|
||
*/
|
||
private static function get_currency( $the_currency ) {
|
||
require_once JETPACK__PLUGIN_DIR . '/_inc/lib/class-jetpack-currencies.php';
|
||
$currencies = Jetpack_Currencies::CURRENCIES;
|
||
|
||
if ( isset( $currencies[ $the_currency ] ) ) {
|
||
return $currencies[ $the_currency ];
|
||
}
|
||
return null;
|
||
}
|
||
}
|
||
Jetpack_Simple_Payments::get_instance();
|