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woocommerce-gateway-stripe.php (3 issues)

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<?php
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/**
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 * Plugin Name: WooCommerce Stripe Gateway
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 * Plugin URI: https://wordpress.org/plugins/woocommerce-gateway-stripe/
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 * Description: Take credit card payments on your store using Stripe.
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 * Author: WooCommerce
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 * Author URI: https://woocommerce.com/
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 * Version: 4.1.1
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 * Requires at least: 4.4
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 * Tested up to: 4.9
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 * WC requires at least: 2.6
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 * WC tested up to: 3.3
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 * Text Domain: woocommerce-gateway-stripe
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 * Domain Path: /languages/
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 *
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 */
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if ( ! defined( 'ABSPATH' ) ) {
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	exit;
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}
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if ( ! class_exists( 'WC_Stripe' ) ) :
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	/**
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	 * Required minimums and constants
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	 */
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	define( 'WC_STRIPE_VERSION', '4.1.1' );
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	define( 'WC_STRIPE_MIN_PHP_VER', '5.6.0' );
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	define( 'WC_STRIPE_MIN_WC_VER', '2.6.0' );
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	define( 'WC_STRIPE_MAIN_FILE', __FILE__ );
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	define( 'WC_STRIPE_PLUGIN_URL', untrailingslashit( plugins_url( basename( plugin_dir_path( __FILE__ ) ), basename( __FILE__ ) ) ) );
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	define( 'WC_STRIPE_PLUGIN_PATH', untrailingslashit( plugin_dir_path( __FILE__ ) ) );
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	class WC_Stripe {
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		/**
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		 * @var Singleton The reference the *Singleton* instance of this class
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		 */
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		private static $instance;
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		/**
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		 * @var Reference to logging class.
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		 */
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		private static $log;
0 ignored issues
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The property $log is not used and could be removed.

This check marks private properties in classes that are never used. Those properties can be removed.

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		/**
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		 * Returns the *Singleton* instance of this class.
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		 *
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		 * @return Singleton The *Singleton* instance.
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		 */
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		public static function get_instance() {
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			if ( null === self::$instance ) {
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				self::$instance = new self();
0 ignored issues
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Documentation Bug introduced by
It seems like new self() of type object<WC_Stripe> is incompatible with the declared type object<Singleton> of property $instance.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

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			}
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			return self::$instance;
0 ignored issues
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Bug Compatibility introduced by
The expression self::$instance; of type WC_Stripe|Singleton adds the type WC_Stripe to the return on line 54 which is incompatible with the return type documented by WC_Stripe::get_instance of type Singleton.
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		}
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		/**
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		 * Private clone method to prevent cloning of the instance of the
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		 * *Singleton* instance.
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		 *
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		 * @return void
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		 */
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		private function __clone() {}
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		/**
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		 * Private unserialize method to prevent unserializing of the *Singleton*
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		 * instance.
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		 *
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		 * @return void
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		 */
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		private function __wakeup() {}
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		/**
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		 * Protected constructor to prevent creating a new instance of the
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		 * *Singleton* via the `new` operator from outside of this class.
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		 */
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		private function __construct() {
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			add_action( 'admin_init', array( $this, 'install' ) );
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			add_action( 'plugins_loaded', array( $this, 'init' ) );
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		}
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		/**
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		 * Init the plugin after plugins_loaded so environment variables are set.
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		 *
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		 * @since 1.0.0
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		 * @version 4.0.0
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		 */
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		public function init() {
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			if ( function_exists( 'is_woocommerce_active' ) && ! is_woocommerce_active() ) {
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				add_action( 'admin_notices', array( $this, 'woocommerce_missing_notice' ) );
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				return;
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			}
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-exception.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-logger.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-helper.php' );
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			include_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-api.php' );
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			load_plugin_textdomain( 'woocommerce-gateway-stripe', false, plugin_basename( dirname( __FILE__ ) ) . '/languages' );
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			require_once( dirname( __FILE__ ) . '/includes/abstracts/abstract-wc-stripe-payment-gateway.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-webhook-handler.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-sepa-payment-token.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-apple-pay-registration.php' );
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			require_once( dirname( __FILE__ ) . '/includes/compat/class-wc-stripe-pre-orders-compat.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-gateway-stripe.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-bancontact.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-sofort.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-giropay.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-eps.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-ideal.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-p24.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-alipay.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-sepa.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-bitcoin.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-multibanco.php' );
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			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-stripe-payment-request.php' );
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			require_once( dirname( __FILE__ ) . '/includes/compat/class-wc-stripe-subs-compat.php' );
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			require_once( dirname( __FILE__ ) . '/includes/compat/class-wc-stripe-sepa-subs-compat.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-order-handler.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-payment-tokens.php' );
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			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-customer.php' );
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			if ( is_admin() ) {
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				require_once( dirname( __FILE__ ) . '/includes/admin/class-wc-stripe-admin-notices.php' );
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			}
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			// REMOVE IN THE FUTURE.
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			require_once( dirname( __FILE__ ) . '/includes/deprecated/class-wc-stripe-apple-pay.php' );
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			add_filter( 'woocommerce_payment_gateways', array( $this, 'add_gateways' ) );
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			add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), array( $this, 'plugin_action_links' ) );
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			add_filter( 'woocommerce_get_sections_checkout', array( $this, 'filter_gateway_order_admin' ) );
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		}
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		/**
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		 * WooCommerce fallback notice.
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		 *
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		 * @since 4.1.1
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		 * @return string
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		 */
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		public function woocommerce_missing_notice() {
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			echo '<div class="error"><p><strong>' . sprintf( esc_html__( 'Stripe requires WooCommerce to be installed and active. You can download %s here.', 'woocommerce-gateway-stripe' ), '<a href="https://woocommerce.com/" target="_blank">WooCommerce</a>' ) . '</strong></p></div>';
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		}
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		/**
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		 * Updates the plugin version in db
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		 *
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		 * @since 3.1.0
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		 * @version 4.0.0
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		 */
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		public function update_plugin_version() {
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			delete_option( 'wc_stripe_version' );
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			update_option( 'wc_stripe_version', WC_STRIPE_VERSION );
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		}
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		/**
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		 * Handles upgrade routines.
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		 *
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		 * @since 3.1.0
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		 * @version 3.1.0
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		 */
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		public function install() {
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			if ( ! is_plugin_active( plugin_basename( __FILE__ ) ) ) {
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				return;
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			}
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			if ( ! defined( 'IFRAME_REQUEST' ) && ( WC_STRIPE_VERSION !== get_option( 'wc_stripe_version' ) ) ) {
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				do_action( 'woocommerce_stripe_updated' );
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				if ( ! defined( 'WC_STRIPE_INSTALLING' ) ) {
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					define( 'WC_STRIPE_INSTALLING', true );
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				}
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				$this->update_plugin_version();
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			}
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		}
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		/**
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		 * Adds plugin action links.
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		 *
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		 * @since 1.0.0
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		 * @version 4.0.0
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		 */
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		public function plugin_action_links( $links ) {
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			$plugin_links = array(
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				'<a href="admin.php?page=wc-settings&tab=checkout&section=stripe">' . esc_html__( 'Settings', 'woocommerce-gateway-stripe' ) . '</a>',
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				'<a href="https://docs.woocommerce.com/document/stripe/">' . esc_html__( 'Docs', 'woocommerce-gateway-stripe' ) . '</a>',
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				'<a href="https://woocommerce.com/contact-us/">' . esc_html__( 'Support', 'woocommerce-gateway-stripe' ) . '</a>',
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			);
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			return array_merge( $plugin_links, $links );
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		}
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		/**
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		 * Add the gateways to WooCommerce.
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		 *
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		 * @since 1.0.0
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		 * @version 4.0.0
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		 */
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		public function add_gateways( $methods ) {
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			if ( class_exists( 'WC_Subscriptions_Order' ) && function_exists( 'wcs_create_renewal_order' ) ) {
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				$methods[] = 'WC_Stripe_Subs_Compat';
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				$methods[] = 'WC_Stripe_Sepa_Subs_Compat';
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			} else {
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				$methods[] = 'WC_Gateway_Stripe';
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				$methods[] = 'WC_Gateway_Stripe_Sepa';
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			}
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			$methods[] = 'WC_Gateway_Stripe_Bancontact';
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			$methods[] = 'WC_Gateway_Stripe_Sofort';
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			$methods[] = 'WC_Gateway_Stripe_Giropay';
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			$methods[] = 'WC_Gateway_Stripe_Eps';
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			$methods[] = 'WC_Gateway_Stripe_Ideal';
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			$methods[] = 'WC_Gateway_Stripe_P24';
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			$methods[] = 'WC_Gateway_Stripe_Alipay';
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			$methods[] = 'WC_Gateway_Stripe_Bitcoin';
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			$methods[] = 'WC_Gateway_Stripe_Multibanco';
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			return $methods;
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		}
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		/**
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		 * Modifies the order of the gateways displayed in admin.
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		 *
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		 * @since 4.0.0
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		 * @version 4.0.0
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		 */
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		public function filter_gateway_order_admin( $sections ) {
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			unset( $sections['stripe'] );
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			unset( $sections['stripe_bancontact'] );
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			unset( $sections['stripe_sofort'] );
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			unset( $sections['stripe_giropay'] );
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			unset( $sections['stripe_eps'] );
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			unset( $sections['stripe_ideal'] );
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			unset( $sections['stripe_p24'] );
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			unset( $sections['stripe_alipay'] );
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			unset( $sections['stripe_sepa'] );
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			unset( $sections['stripe_bitcoin'] );
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			unset( $sections['stripe_multibanco'] );
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			$sections['stripe']            = 'Stripe';
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			$sections['stripe_bancontact'] = __( 'Stripe Bancontact', 'woocommerce-gateway-stripe' );
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			$sections['stripe_sofort']     = __( 'Stripe SOFORT', 'woocommerce-gateway-stripe' );
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			$sections['stripe_giropay']    = __( 'Stripe Giropay', 'woocommerce-gateway-stripe' );
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			$sections['stripe_eps']        = __( 'Stripe EPS', 'woocommerce-gateway-stripe' );
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			$sections['stripe_ideal']      = __( 'Stripe iDeal', 'woocommerce-gateway-stripe' );
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			$sections['stripe_p24']        = __( 'Stripe P24', 'woocommerce-gateway-stripe' );
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			$sections['stripe_alipay']     = __( 'Stripe Alipay', 'woocommerce-gateway-stripe' );
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			$sections['stripe_sepa']       = __( 'Stripe SEPA Direct Debit', 'woocommerce-gateway-stripe' );
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			$sections['stripe_bitcoin']    = __( 'Stripe Bitcoin', 'woocommerce-gateway-stripe' );
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			$sections['stripe_multibanco'] = __( 'Stripe Multibanco', 'woocommerce-gateway-stripe' );
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			return $sections;
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		}
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	}
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	WC_Stripe::get_instance();
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endif;
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