woocommerce / woocommerce-gateway-stripe

includes/class-wc-gateway-stripe.php

Spacing +268 added lines, -268 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -85,9 +85,9 @@ 
 	public function __construct() {
 		$this->retry_interval = 1;
 		$this->id             = 'stripe';
-		$this->method_title   = __( 'Stripe', 'woocommerce-gateway-stripe' );
+		$this->method_title   = __('Stripe', 'woocommerce-gateway-stripe');
 		/* translators: 1) link to Stripe register page 2) link to Stripe api keys page */
-		$this->method_description = sprintf( __( 'Stripe works by adding payment fields on the checkout and then sending the details to Stripe for verification. <a href="%1$s" target="_blank">Sign up</a> for a Stripe account, and <a href="%2$s" target="_blank">get your Stripe account keys</a>.', 'woocommerce-gateway-stripe' ), 'https://dashboard.stripe.com/register', 'https://dashboard.stripe.com/account/apikeys' );
+		$this->method_description = sprintf(__('Stripe works by adding payment fields on the checkout and then sending the details to Stripe for verification. <a href="%1$s" target="_blank">Sign up</a> for a Stripe account, and <a href="%2$s" target="_blank">get your Stripe account keys</a>.', 'woocommerce-gateway-stripe'), 'https://dashboard.stripe.com/register', 'https://dashboard.stripe.com/account/apikeys');
 		$this->has_fields         = true;
 		$this->supports           = array(
 			'products',
@@ -114,35 +114,35 @@ 
 		$this->init_settings();
 
 		// Get setting values.
-		$this->title                = $this->get_option( 'title' );
-		$this->description          = $this->get_option( 'description' );
-		$this->enabled              = $this->get_option( 'enabled' );
-		$this->testmode             = 'yes' === $this->get_option( 'testmode' );
-		$this->inline_cc_form       = 'yes' === $this->get_option( 'inline_cc_form' );
-		$this->capture              = 'yes' === $this->get_option( 'capture', 'yes' );
-		$this->statement_descriptor = WC_Stripe_Helper::clean_statement_descriptor( $this->get_option( 'statement_descriptor' ) );
-		$this->saved_cards          = 'yes' === $this->get_option( 'saved_cards' );
-		$this->secret_key           = $this->testmode ? $this->get_option( 'test_secret_key' ) : $this->get_option( 'secret_key' );
-		$this->publishable_key      = $this->testmode ? $this->get_option( 'test_publishable_key' ) : $this->get_option( 'publishable_key' );
-		$this->payment_request      = 'yes' === $this->get_option( 'payment_request', 'yes' );
-
-		WC_Stripe_API::set_secret_key( $this->secret_key );
+		$this->title                = $this->get_option('title');
+		$this->description          = $this->get_option('description');
+		$this->enabled              = $this->get_option('enabled');
+		$this->testmode             = 'yes' === $this->get_option('testmode');
+		$this->inline_cc_form       = 'yes' === $this->get_option('inline_cc_form');
+		$this->capture              = 'yes' === $this->get_option('capture', 'yes');
+		$this->statement_descriptor = WC_Stripe_Helper::clean_statement_descriptor($this->get_option('statement_descriptor'));
+		$this->saved_cards          = 'yes' === $this->get_option('saved_cards');
+		$this->secret_key           = $this->testmode ? $this->get_option('test_secret_key') : $this->get_option('secret_key');
+		$this->publishable_key      = $this->testmode ? $this->get_option('test_publishable_key') : $this->get_option('publishable_key');
+		$this->payment_request      = 'yes' === $this->get_option('payment_request', 'yes');
+
+		WC_Stripe_API::set_secret_key($this->secret_key);
 
 		// Hooks.
-		add_action( 'wp_enqueue_scripts', array( $this, 'payment_scripts' ) );
-		add_action( 'admin_enqueue_scripts', array( $this, 'admin_scripts' ) );
-		add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
-		add_action( 'woocommerce_admin_order_totals_after_total', array( $this, 'display_order_fee' ) );
-		add_action( 'woocommerce_admin_order_totals_after_total', array( $this, 'display_order_payout' ), 20 );
-		add_action( 'woocommerce_customer_save_address', array( $this, 'show_update_card_notice' ), 10, 2 );
-		add_filter( 'woocommerce_available_payment_gateways', array( $this, 'prepare_order_pay_page' ) );
-		add_action( 'woocommerce_account_view-order_endpoint', array( $this, 'check_intent_status_on_order_page' ), 1 );
-		add_filter( 'woocommerce_payment_successful_result', array( $this, 'modify_successful_payment_result' ), 99999, 2 );
-
-		if ( WC_Stripe_Helper::is_pre_orders_exists() ) {
+		add_action('wp_enqueue_scripts', array($this, 'payment_scripts'));
+		add_action('admin_enqueue_scripts', array($this, 'admin_scripts'));
+		add_action('woocommerce_update_options_payment_gateways_' . $this->id, array($this, 'process_admin_options'));
+		add_action('woocommerce_admin_order_totals_after_total', array($this, 'display_order_fee'));
+		add_action('woocommerce_admin_order_totals_after_total', array($this, 'display_order_payout'), 20);
+		add_action('woocommerce_customer_save_address', array($this, 'show_update_card_notice'), 10, 2);
+		add_filter('woocommerce_available_payment_gateways', array($this, 'prepare_order_pay_page'));
+		add_action('woocommerce_account_view-order_endpoint', array($this, 'check_intent_status_on_order_page'), 1);
+		add_filter('woocommerce_payment_successful_result', array($this, 'modify_successful_payment_result'), 99999, 2);
+
+		if (WC_Stripe_Helper::is_pre_orders_exists()) {
 			$this->pre_orders = new WC_Stripe_Pre_Orders_Compat();
 
-			add_action( 'wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array( $this->pre_orders, 'process_pre_order_release_payment' ) );
+			add_action('wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array($this->pre_orders, 'process_pre_order_release_payment'));
 		}
 	}
 
@@ -153,7 +153,7 @@ 
 	 * @return bool
 	 */
 	public function are_keys_set() {
-		if ( empty( $this->secret_key ) || empty( $this->publishable_key ) ) {
+		if (empty($this->secret_key) || empty($this->publishable_key)) {
 			return false;
 		}
 
@@ -166,7 +166,7 @@ 
 	 * @since 4.0.2
 	 */
 	public function is_available() {
-		if ( is_add_payment_method_page() && ! $this->saved_cards ) {
+		if (is_add_payment_method_page() && ! $this->saved_cards) {
 			return false;
 		}
 
@@ -180,13 +180,13 @@ 
 	 * @param int    $user_id      The ID of the current user.
 	 * @param string $load_address The address to load.
 	 */
-	public function show_update_card_notice( $user_id, $load_address ) {
-		if ( ! $this->saved_cards || ! WC_Stripe_Payment_Tokens::customer_has_saved_methods( $user_id ) || 'billing' !== $load_address ) {
+	public function show_update_card_notice($user_id, $load_address) {
+		if ( ! $this->saved_cards || ! WC_Stripe_Payment_Tokens::customer_has_saved_methods($user_id) || 'billing' !== $load_address) {
 			return;
 		}
 
 		/* translators: 1) Opening anchor tag 2) closing anchor tag */
-		wc_add_notice( sprintf( __( 'If your billing address has been changed for saved payment methods, be sure to remove any %1$ssaved payment methods%2$s on file and re-add them.', 'woocommerce-gateway-stripe' ), '<a href="' . esc_url( wc_get_endpoint_url( 'payment-methods' ) ) . '" class="wc-stripe-update-card-notice" style="text-decoration:underline;">', '</a>' ), 'notice' );
+		wc_add_notice(sprintf(__('If your billing address has been changed for saved payment methods, be sure to remove any %1$ssaved payment methods%2$s on file and re-add them.', 'woocommerce-gateway-stripe'), '<a href="' . esc_url(wc_get_endpoint_url('payment-methods')) . '" class="wc-stripe-update-card-notice" style="text-decoration:underline;">', '</a>'), 'notice');
 	}
 
 	/**
@@ -201,31 +201,31 @@ 
 
 		$icons_str = '';
 
-		$icons_str .= isset( $icons['visa'] ) ? $icons['visa'] : '';
-		$icons_str .= isset( $icons['amex'] ) ? $icons['amex'] : '';
-		$icons_str .= isset( $icons['mastercard'] ) ? $icons['mastercard'] : '';
+		$icons_str .= isset($icons['visa']) ? $icons['visa'] : '';
+		$icons_str .= isset($icons['amex']) ? $icons['amex'] : '';
+		$icons_str .= isset($icons['mastercard']) ? $icons['mastercard'] : '';
 
-		if ( 'USD' === get_woocommerce_currency() ) {
-			$icons_str .= isset( $icons['discover'] ) ? $icons['discover'] : '';
-			$icons_str .= isset( $icons['jcb'] ) ? $icons['jcb'] : '';
-			$icons_str .= isset( $icons['diners'] ) ? $icons['diners'] : '';
+		if ('USD' === get_woocommerce_currency()) {
+			$icons_str .= isset($icons['discover']) ? $icons['discover'] : '';
+			$icons_str .= isset($icons['jcb']) ? $icons['jcb'] : '';
+			$icons_str .= isset($icons['diners']) ? $icons['diners'] : '';
 		}
 
-		return apply_filters( 'woocommerce_gateway_icon', $icons_str, $this->id );
+		return apply_filters('woocommerce_gateway_icon', $icons_str, $this->id);
 	}
 
 	/**
 	 * Initialise Gateway Settings Form Fields
 	 */
 	public function init_form_fields() {
-		$this->form_fields = require( dirname( __FILE__ ) . '/admin/stripe-settings.php' );
+		$this->form_fields = require(dirname(__FILE__) . '/admin/stripe-settings.php');
 
-		if ( 'yes' === $this->get_option( 'three_d_secure' ) ) {
-			if ( isset( $_REQUEST['stripe_dismiss_3ds'] ) && wp_verify_nonce( $_REQUEST['stripe_dismiss_3ds'], 'no-3ds' ) ) { // wpcs: sanitization ok.
-				$this->update_option( '3ds_setting_notice_dismissed', true );
+		if ('yes' === $this->get_option('three_d_secure')) {
+			if (isset($_REQUEST['stripe_dismiss_3ds']) && wp_verify_nonce($_REQUEST['stripe_dismiss_3ds'], 'no-3ds')) { // wpcs: sanitization ok.
+				$this->update_option('3ds_setting_notice_dismissed', true);
 			}
 
-			add_action( 'admin_notices', array( $this, 'display_three_d_secure_notice' ) );
+			add_action('admin_notices', array($this, 'display_three_d_secure_notice'));
 		}
 	}
 
@@ -234,34 +234,34 @@ 
 	 */
 	public function payment_fields() {
 		$user                 = wp_get_current_user();
-		$display_tokenization = $this->supports( 'tokenization' ) && is_checkout() && $this->saved_cards;
+		$display_tokenization = $this->supports('tokenization') && is_checkout() && $this->saved_cards;
 		$total                = WC()->cart->total;
 		$user_email           = '';
 		$description          = $this->get_description();
-		$description          = ! empty( $description ) ? $description : '';
+		$description          = ! empty($description) ? $description : '';
 		$firstname            = '';
 		$lastname             = '';
 
 		// If paying from order, we need to get total from order not cart.
-		if ( isset( $_GET['pay_for_order'] ) && ! empty( $_GET['key'] ) ) { // wpcs: csrf ok.
-			$order      = wc_get_order( wc_get_order_id_by_order_key( wc_clean( $_GET['key'] ) ) ); // wpcs: csrf ok, sanitization ok.
+		if (isset($_GET['pay_for_order']) && ! empty($_GET['key'])) { // wpcs: csrf ok.
+			$order      = wc_get_order(wc_get_order_id_by_order_key(wc_clean($_GET['key']))); // wpcs: csrf ok, sanitization ok.
 			$total      = $order->get_total();
-			$user_email = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_email : $order->get_billing_email();
+			$user_email = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_email : $order->get_billing_email();
 		} else {
-			if ( $user->ID ) {
-				$user_email = get_user_meta( $user->ID, 'billing_email', true );
+			if ($user->ID) {
+				$user_email = get_user_meta($user->ID, 'billing_email', true);
 				$user_email = $user_email ? $user_email : $user->user_email;
 			}
 		}
 
-		if ( is_add_payment_method_page() ) {
-			$pay_button_text = __( 'Add Card', 'woocommerce-gateway-stripe' );
+		if (is_add_payment_method_page()) {
+			$pay_button_text = __('Add Card', 'woocommerce-gateway-stripe');
 			$total           = '';
 			$firstname       = $user->user_firstname;
 			$lastname        = $user->user_lastname;
 
-		} elseif ( function_exists( 'wcs_order_contains_subscription' ) && isset( $_GET['change_payment_method'] ) ) { // wpcs: csrf ok.
-			$pay_button_text = __( 'Change Payment Method', 'woocommerce-gateway-stripe' );
+		} elseif (function_exists('wcs_order_contains_subscription') && isset($_GET['change_payment_method'])) { // wpcs: csrf ok.
+			$pay_button_text = __('Change Payment Method', 'woocommerce-gateway-stripe');
 			$total           = '';
 		} else {
 			$pay_button_text = '';
@@ -271,37 +271,37 @@ 
 
 		echo '<div
 			id="stripe-payment-data"
-			data-panel-label="' . esc_attr( $pay_button_text ) . '"
-			data-email="' . esc_attr( $user_email ) . '"
-			data-amount="' . esc_attr( WC_Stripe_Helper::get_stripe_amount( $total ) ) . '"
-			data-name="' . esc_attr( $this->statement_descriptor ) . '"
-			data-full-name="' . esc_attr( $firstname . ' ' . $lastname ) . '"
-			data-currency="' . esc_attr( strtolower( get_woocommerce_currency() ) ) . '"
-			data-allow-remember-me="' . esc_attr( apply_filters( 'wc_stripe_allow_remember_me', true ) ? 'true' : 'false' ) . '"
+			data-panel-label="' . esc_attr($pay_button_text) . '"
+			data-email="' . esc_attr($user_email) . '"
+			data-amount="' . esc_attr(WC_Stripe_Helper::get_stripe_amount($total)) . '"
+			data-name="' . esc_attr($this->statement_descriptor) . '"
+			data-full-name="' . esc_attr($firstname . ' ' . $lastname) . '"
+			data-currency="' . esc_attr(strtolower(get_woocommerce_currency())) . '"
+			data-allow-remember-me="' . esc_attr(apply_filters('wc_stripe_allow_remember_me', true) ? 'true' : 'false') . '"
 		>';
 
-		if ( $this->testmode ) {
+		if ($this->testmode) {
 			/* translators: link to Stripe testing page */
-			$description .= ' ' . sprintf( __( 'TEST MODE ENABLED. In test mode, you can use the card number 4242424242424242 with any CVC and a valid expiration date or check the <a href="%s" target="_blank">Testing Stripe documentation</a> for more card numbers.', 'woocommerce-gateway-stripe' ), 'https://stripe.com/docs/testing' );
+			$description .= ' ' . sprintf(__('TEST MODE ENABLED. In test mode, you can use the card number 4242424242424242 with any CVC and a valid expiration date or check the <a href="%s" target="_blank">Testing Stripe documentation</a> for more card numbers.', 'woocommerce-gateway-stripe'), 'https://stripe.com/docs/testing');
 		}
 
-		$description = trim( $description );
+		$description = trim($description);
 
-		echo apply_filters( 'wc_stripe_description', wpautop( wp_kses_post( $description ) ), $this->id ); // wpcs: xss ok.
+		echo apply_filters('wc_stripe_description', wpautop(wp_kses_post($description)), $this->id); // wpcs: xss ok.
 
-		if ( $display_tokenization ) {
+		if ($display_tokenization) {
 			$this->tokenization_script();
 			$this->saved_payment_methods();
 		}
 
 		$this->elements_form();
 
-		if ( apply_filters( 'wc_stripe_display_save_payment_method_checkbox', $display_tokenization ) && ! is_add_payment_method_page() && ! isset( $_GET['change_payment_method'] ) ) { // wpcs: csrf ok.
+		if (apply_filters('wc_stripe_display_save_payment_method_checkbox', $display_tokenization) && ! is_add_payment_method_page() && ! isset($_GET['change_payment_method'])) { // wpcs: csrf ok.
 
 			$this->save_payment_method_checkbox();
 		}
 
-		do_action( 'wc_stripe_cards_payment_fields', $this->id );
+		do_action('wc_stripe_cards_payment_fields', $this->id);
 
 		echo '</div>';
 
@@ -316,12 +316,12 @@ 
 	 */
 	public function elements_form() {
 		?>
-		<fieldset id="wc-<?php echo esc_attr( $this->id ); ?>-cc-form" class="wc-credit-card-form wc-payment-form" style="background:transparent;">
-			<?php do_action( 'woocommerce_credit_card_form_start', $this->id ); ?>
+		<fieldset id="wc-<?php echo esc_attr($this->id); ?>-cc-form" class="wc-credit-card-form wc-payment-form" style="background:transparent;">
+			<?php do_action('woocommerce_credit_card_form_start', $this->id); ?>
 
-			<?php if ( $this->inline_cc_form ) { ?>
+			<?php if ($this->inline_cc_form) { ?>
 				<label for="card-element">
-					<?php esc_html_e( 'Credit or debit card', 'woocommerce-gateway-stripe' ); ?>
+					<?php esc_html_e('Credit or debit card', 'woocommerce-gateway-stripe'); ?>
 				</label>
 
 				<div id="stripe-card-element" class="wc-stripe-elements-field">
@@ -329,7 +329,7 @@ 
 				</div>
 			<?php } else { ?>
 				<div class="form-row form-row-wide">
-					<label for="stripe-card-element"><?php esc_html_e( 'Card Number', 'woocommerce-gateway-stripe' ); ?> <span class="required">*</span></label>
+					<label for="stripe-card-element"><?php esc_html_e('Card Number', 'woocommerce-gateway-stripe'); ?> <span class="required">*</span></label>
 					<div class="stripe-card-group">
 						<div id="stripe-card-element" class="wc-stripe-elements-field">
 						<!-- a Stripe Element will be inserted here. -->
@@ -340,7 +340,7 @@ 
 				</div>
 
 				<div class="form-row form-row-first">
-					<label for="stripe-exp-element"><?php esc_html_e( 'Expiry Date', 'woocommerce-gateway-stripe' ); ?> <span class="required">*</span></label>
+					<label for="stripe-exp-element"><?php esc_html_e('Expiry Date', 'woocommerce-gateway-stripe'); ?> <span class="required">*</span></label>
 
 					<div id="stripe-exp-element" class="wc-stripe-elements-field">
 					<!-- a Stripe Element will be inserted here. -->
@@ -348,7 +348,7 @@ 
 				</div>
 
 				<div class="form-row form-row-last">
-					<label for="stripe-cvc-element"><?php esc_html_e( 'Card Code (CVC)', 'woocommerce-gateway-stripe' ); ?> <span class="required">*</span></label>
+					<label for="stripe-cvc-element"><?php esc_html_e('Card Code (CVC)', 'woocommerce-gateway-stripe'); ?> <span class="required">*</span></label>
 				<div id="stripe-cvc-element" class="wc-stripe-elements-field">
 				<!-- a Stripe Element will be inserted here. -->
 				</div>
@@ -359,7 +359,7 @@ 
 			<!-- Used to display form errors -->
 			<div class="stripe-source-errors" role="alert"></div>
 			<br />
-			<?php do_action( 'woocommerce_credit_card_form_end', $this->id ); ?>
+			<?php do_action('woocommerce_credit_card_form_end', $this->id); ?>
 			<div class="clear"></div>
 		</fieldset>
 		<?php
@@ -372,13 +372,13 @@ 
 	 * @version 3.1.0
 	 */
 	public function admin_scripts() {
-		if ( 'woocommerce_page_wc-settings' !== get_current_screen()->id ) {
+		if ('woocommerce_page_wc-settings' !== get_current_screen()->id) {
 			return;
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		wp_enqueue_script( 'woocommerce_stripe_admin', plugins_url( 'assets/js/stripe-admin' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array(), WC_STRIPE_VERSION, true );
+		wp_enqueue_script('woocommerce_stripe_admin', plugins_url('assets/js/stripe-admin' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array(), WC_STRIPE_VERSION, true);
 	}
 
 	/**
@@ -390,97 +390,97 @@ 
 	 * @version 4.0.0
 	 */
 	public function payment_scripts() {
-		if ( ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) && ! is_add_payment_method_page() && ! isset( $_GET['change_payment_method'] ) ) { // wpcs: csrf ok.
+		if ( ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order']) && ! is_add_payment_method_page() && ! isset($_GET['change_payment_method'])) { // wpcs: csrf ok.
 			return;
 		}
 
 		// If Stripe is not enabled bail.
-		if ( 'no' === $this->enabled ) {
+		if ('no' === $this->enabled) {
 			return;
 		}
 
 		// If keys are not set bail.
-		if ( ! $this->are_keys_set() ) {
-			WC_Stripe_Logger::log( 'Keys are not set correctly.' );
+		if ( ! $this->are_keys_set()) {
+			WC_Stripe_Logger::log('Keys are not set correctly.');
 			return;
 		}
 
 		// If no SSL bail.
-		if ( ! $this->testmode && ! is_ssl() ) {
-			WC_Stripe_Logger::log( 'Stripe live mode requires SSL.' );
+		if ( ! $this->testmode && ! is_ssl()) {
+			WC_Stripe_Logger::log('Stripe live mode requires SSL.');
 			return;
 		}
 
 		$current_theme = wp_get_theme();
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		wp_register_style( 'stripe_styles', plugins_url( 'assets/css/stripe-styles.css', WC_STRIPE_MAIN_FILE ), array(), WC_STRIPE_VERSION );
-		wp_enqueue_style( 'stripe_styles' );
+		wp_register_style('stripe_styles', plugins_url('assets/css/stripe-styles.css', WC_STRIPE_MAIN_FILE), array(), WC_STRIPE_VERSION);
+		wp_enqueue_style('stripe_styles');
 
-		wp_register_script( 'stripe', 'https://js.stripe.com/v3/', '', '3.0', true );
-		wp_register_script( 'woocommerce_stripe', plugins_url( 'assets/js/stripe' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'jquery-payment', 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_register_script('stripe', 'https://js.stripe.com/v3/', '', '3.0', true);
+		wp_register_script('woocommerce_stripe', plugins_url('assets/js/stripe' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('jquery-payment', 'stripe'), WC_STRIPE_VERSION, true);
 
 		$stripe_params = array(
 			'key'                  => $this->publishable_key,
-			'i18n_terms'           => __( 'Please accept the terms and conditions first', 'woocommerce-gateway-stripe' ),
-			'i18n_required_fields' => __( 'Please fill in required checkout fields first', 'woocommerce-gateway-stripe' ),
+			'i18n_terms'           => __('Please accept the terms and conditions first', 'woocommerce-gateway-stripe'),
+			'i18n_required_fields' => __('Please fill in required checkout fields first', 'woocommerce-gateway-stripe'),
 		);
 
 		// If we're on the pay page we need to pass stripe.js the address of the order.
-		if ( isset( $_GET['pay_for_order'] ) && 'true' === $_GET['pay_for_order'] ) { // wpcs: csrf ok.
-			$order_id = wc_get_order_id_by_order_key( urldecode( $_GET['key'] ) ); // wpcs: csrf ok, sanitization ok, xss ok.
-			$order    = wc_get_order( $order_id );
-
-			if ( is_a( $order, 'WC_Order' ) ) {
-				$stripe_params['billing_first_name'] = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_first_name : $order->get_billing_first_name();
-				$stripe_params['billing_last_name']  = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_last_name : $order->get_billing_last_name();
-				$stripe_params['billing_address_1']  = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_address_1 : $order->get_billing_address_1();
-				$stripe_params['billing_address_2']  = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_address_2 : $order->get_billing_address_2();
-				$stripe_params['billing_state']      = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_state : $order->get_billing_state();
-				$stripe_params['billing_city']       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_city : $order->get_billing_city();
-				$stripe_params['billing_postcode']   = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_postcode : $order->get_billing_postcode();
-				$stripe_params['billing_country']    = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_country : $order->get_billing_country();
+		if (isset($_GET['pay_for_order']) && 'true' === $_GET['pay_for_order']) { // wpcs: csrf ok.
+			$order_id = wc_get_order_id_by_order_key(urldecode($_GET['key'])); // wpcs: csrf ok, sanitization ok, xss ok.
+			$order    = wc_get_order($order_id);
+
+			if (is_a($order, 'WC_Order')) {
+				$stripe_params['billing_first_name'] = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_first_name : $order->get_billing_first_name();
+				$stripe_params['billing_last_name']  = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_last_name : $order->get_billing_last_name();
+				$stripe_params['billing_address_1']  = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_address_1 : $order->get_billing_address_1();
+				$stripe_params['billing_address_2']  = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_address_2 : $order->get_billing_address_2();
+				$stripe_params['billing_state']      = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_state : $order->get_billing_state();
+				$stripe_params['billing_city']       = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_city : $order->get_billing_city();
+				$stripe_params['billing_postcode']   = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_postcode : $order->get_billing_postcode();
+				$stripe_params['billing_country']    = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_country : $order->get_billing_country();
 			}
 		}
 
 		$sepa_elements_options = apply_filters(
 			'wc_stripe_sepa_elements_options',
 			array(
-				'supportedCountries' => array( 'SEPA' ),
+				'supportedCountries' => array('SEPA'),
 				'placeholderCountry' => WC()->countries->get_base_country(),
-				'style'              => array( 'base' => array( 'fontSize' => '15px' ) ),
+				'style'              => array('base' => array('fontSize' => '15px')),
 			)
 		);
 
-		$stripe_params['no_prepaid_card_msg']       = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charged. Please try with alternative payment method.', 'woocommerce-gateway-stripe' );
-		$stripe_params['no_sepa_owner_msg']         = __( 'Please enter your IBAN account name.', 'woocommerce-gateway-stripe' );
-		$stripe_params['no_sepa_iban_msg']          = __( 'Please enter your IBAN account number.', 'woocommerce-gateway-stripe' );
-		$stripe_params['payment_intent_error']      = __( 'We couldn\'t initiate the payment. Please try again.', 'woocommerce-gateway-stripe' );
-		$stripe_params['sepa_mandate_notification'] = apply_filters( 'wc_stripe_sepa_mandate_notification', 'email' );
-		$stripe_params['allow_prepaid_card']        = apply_filters( 'wc_stripe_allow_prepaid_card', true ) ? 'yes' : 'no';
+		$stripe_params['no_prepaid_card_msg']       = __('Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charged. Please try with alternative payment method.', 'woocommerce-gateway-stripe');
+		$stripe_params['no_sepa_owner_msg']         = __('Please enter your IBAN account name.', 'woocommerce-gateway-stripe');
+		$stripe_params['no_sepa_iban_msg']          = __('Please enter your IBAN account number.', 'woocommerce-gateway-stripe');
+		$stripe_params['payment_intent_error']      = __('We couldn\'t initiate the payment. Please try again.', 'woocommerce-gateway-stripe');
+		$stripe_params['sepa_mandate_notification'] = apply_filters('wc_stripe_sepa_mandate_notification', 'email');
+		$stripe_params['allow_prepaid_card']        = apply_filters('wc_stripe_allow_prepaid_card', true) ? 'yes' : 'no';
 		$stripe_params['inline_cc_form']            = $this->inline_cc_form ? 'yes' : 'no';
-		$stripe_params['is_checkout']               = ( is_checkout() && empty( $_GET['pay_for_order'] ) ) ? 'yes' : 'no'; // wpcs: csrf ok.
+		$stripe_params['is_checkout']               = (is_checkout() && empty($_GET['pay_for_order'])) ? 'yes' : 'no'; // wpcs: csrf ok.
 		$stripe_params['return_url']                = $this->get_stripe_return_url();
-		$stripe_params['ajaxurl']                   = WC_AJAX::get_endpoint( '%%endpoint%%' );
-		$stripe_params['stripe_nonce']              = wp_create_nonce( '_wc_stripe_nonce' );
+		$stripe_params['ajaxurl']                   = WC_AJAX::get_endpoint('%%endpoint%%');
+		$stripe_params['stripe_nonce']              = wp_create_nonce('_wc_stripe_nonce');
 		$stripe_params['statement_descriptor']      = $this->statement_descriptor;
-		$stripe_params['elements_options']          = apply_filters( 'wc_stripe_elements_options', array() );
+		$stripe_params['elements_options']          = apply_filters('wc_stripe_elements_options', array());
 		$stripe_params['sepa_elements_options']     = $sepa_elements_options;
-		$stripe_params['invalid_owner_name']        = __( 'Billing First Name and Last Name are required.', 'woocommerce-gateway-stripe' );
-		$stripe_params['is_change_payment_page']    = isset( $_GET['change_payment_method'] ) ? 'yes' : 'no'; // wpcs: csrf ok.
-		$stripe_params['is_add_payment_page']       = is_wc_endpoint_url( 'add-payment-method' ) ? 'yes' : 'no';
-		$stripe_params['is_pay_for_order_page']     = is_wc_endpoint_url( 'order-pay' ) ? 'yes' : 'no';
-		$stripe_params['elements_styling']          = apply_filters( 'wc_stripe_elements_styling', false );
-		$stripe_params['elements_classes']          = apply_filters( 'wc_stripe_elements_classes', false );
+		$stripe_params['invalid_owner_name']        = __('Billing First Name and Last Name are required.', 'woocommerce-gateway-stripe');
+		$stripe_params['is_change_payment_page']    = isset($_GET['change_payment_method']) ? 'yes' : 'no'; // wpcs: csrf ok.
+		$stripe_params['is_add_payment_page']       = is_wc_endpoint_url('add-payment-method') ? 'yes' : 'no';
+		$stripe_params['is_pay_for_order_page']     = is_wc_endpoint_url('order-pay') ? 'yes' : 'no';
+		$stripe_params['elements_styling']          = apply_filters('wc_stripe_elements_styling', false);
+		$stripe_params['elements_classes']          = apply_filters('wc_stripe_elements_classes', false);
 
 		// Merge localized messages to be use in JS.
-		$stripe_params = array_merge( $stripe_params, WC_Stripe_Helper::get_localized_messages() );
+		$stripe_params = array_merge($stripe_params, WC_Stripe_Helper::get_localized_messages());
 
-		wp_localize_script( 'woocommerce_stripe', 'wc_stripe_params', apply_filters( 'wc_stripe_params', $stripe_params ) );
+		wp_localize_script('woocommerce_stripe', 'wc_stripe_params', apply_filters('wc_stripe_params', $stripe_params));
 
 		$this->tokenization_script();
-		wp_enqueue_script( 'woocommerce_stripe' );
+		wp_enqueue_script('woocommerce_stripe');
 	}
 
 	/**
@@ -489,14 +489,14 @@ 
 	 * @since 4.2.0
 	 * @param WC_Order $order The order that is being created.
 	 */
-	public function maybe_create_customer( $order ) {
+	public function maybe_create_customer($order) {
 		// This comes from the create account checkbox in the checkout page.
-		if ( empty( $_POST['createaccount'] ) ) { // wpcs: csrf ok.
+		if (empty($_POST['createaccount'])) { // wpcs: csrf ok.
 			return;
 		}
 
-		$new_customer_id     = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->customer_user : $order->get_customer_id();
-		$new_stripe_customer = new WC_Stripe_Customer( $new_customer_id );
+		$new_customer_id     = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->customer_user : $order->get_customer_id();
+		$new_stripe_customer = new WC_Stripe_Customer($new_customer_id);
 		$new_stripe_customer->create_customer();
 	}
 
@@ -508,14 +508,14 @@ 
 	 * @param object $prepared_source The object with source details.
 	 * @throws WC_Stripe_Exception An exception if the card is prepaid, but prepaid cards are not allowed.
 	 */
-	public function maybe_disallow_prepaid_card( $prepared_source ) {
+	public function maybe_disallow_prepaid_card($prepared_source) {
 		// Check if we don't allow prepaid credit cards.
-		if ( apply_filters( 'wc_stripe_allow_prepaid_card', true ) || ! $this->is_prepaid_card( $prepared_source->source_object ) ) {
+		if (apply_filters('wc_stripe_allow_prepaid_card', true) || ! $this->is_prepaid_card($prepared_source->source_object)) {
 			return;
 		}
 
-		$localized_message = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charged. Please try with alternative payment method.', 'woocommerce-gateway-stripe' );
-		throw new WC_Stripe_Exception( print_r( $prepared_source->source_object, true ), $localized_message );
+		$localized_message = __('Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charged. Please try with alternative payment method.', 'woocommerce-gateway-stripe');
+		throw new WC_Stripe_Exception(print_r($prepared_source->source_object, true), $localized_message);
 	}
 
 	/**
@@ -525,10 +525,10 @@ 
 	 * @param  object $prepared_source The source that should be verified.
 	 * @throws WC_Stripe_Exception     An exception if the source ID is missing.
 	 */
-	public function check_source( $prepared_source ) {
-		if ( empty( $prepared_source->source ) ) {
-			$localized_message = __( 'Payment processing failed. Please retry.', 'woocommerce-gateway-stripe' );
-			throw new WC_Stripe_Exception( print_r( $prepared_source, true ), $localized_message );
+	public function check_source($prepared_source) {
+		if (empty($prepared_source->source)) {
+			$localized_message = __('Payment processing failed. Please retry.', 'woocommerce-gateway-stripe');
+			throw new WC_Stripe_Exception(print_r($prepared_source, true), $localized_message);
 		}
 	}
 
@@ -540,17 +540,17 @@ 
 	 * @param WC_Order $order The order those payment is being processed.
 	 * @return bool           A flag that indicates that the customer does not exist and should be removed.
 	 */
-	public function maybe_remove_non_existent_customer( $error, $order ) {
-		if ( ! $this->is_no_such_customer_error( $error ) ) {
+	public function maybe_remove_non_existent_customer($error, $order) {
+		if ( ! $this->is_no_such_customer_error($error)) {
 			return false;
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			delete_user_meta( $order->customer_user, '_stripe_customer_id' );
-			delete_post_meta( $order->get_id(), '_stripe_customer_id' );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			delete_user_meta($order->customer_user, '_stripe_customer_id');
+			delete_post_meta($order->get_id(), '_stripe_customer_id');
 		} else {
-			delete_user_meta( $order->get_customer_id(), '_stripe_customer_id' );
-			$order->delete_meta_data( '_stripe_customer_id' );
+			delete_user_meta($order->get_customer_id(), '_stripe_customer_id');
+			$order->delete_meta_data('_stripe_customer_id');
 			$order->save();
 		}
 
@@ -564,7 +564,7 @@ 
 	 * @param WC_Order $order The order to complete.
 	 * @return array          Redirection data for `process_payment`.
 	 */
-	public function complete_free_order( $order ) {
+	public function complete_free_order($order) {
 		$order->payment_complete();
 
 		// Remove cart.
@@ -573,7 +573,7 @@ 
 		// Return thank you page redirect.
 		return array(
 			'result'   => 'success',
-			'redirect' => $this->get_return_url( $order ),
+			'redirect' => $this->get_return_url($order),
 		);
 	}
 
@@ -590,60 +590,60 @@ 
 	 * @throws Exception If payment will not be accepted.
 	 * @return array|void
 	 */
-	public function process_payment( $order_id, $retry = true, $force_save_source = false, $previous_error = false ) {
+	public function process_payment($order_id, $retry = true, $force_save_source = false, $previous_error = false) {
 		try {
-			$order = wc_get_order( $order_id );
+			$order = wc_get_order($order_id);
 
 			// ToDo: `process_pre_order` saves the source to the order for a later payment.
 			// This might not work well with PaymentIntents.
-			if ( $this->maybe_process_pre_orders( $order_id ) ) {
-				return $this->pre_orders->process_pre_order( $order_id );
+			if ($this->maybe_process_pre_orders($order_id)) {
+				return $this->pre_orders->process_pre_order($order_id);
 			}
 
-			$this->maybe_create_customer( $order );
+			$this->maybe_create_customer($order);
 
-			$prepared_source = $this->prepare_source( get_current_user_id(), $force_save_source );
+			$prepared_source = $this->prepare_source(get_current_user_id(), $force_save_source);
 
-			$this->maybe_disallow_prepaid_card( $prepared_source );
-			$this->check_source( $prepared_source );
-			$this->save_source_to_order( $order, $prepared_source );
+			$this->maybe_disallow_prepaid_card($prepared_source);
+			$this->check_source($prepared_source);
+			$this->save_source_to_order($order, $prepared_source);
 
-			if ( 0 >= $order->get_total() ) {
-				return $this->complete_free_order( $order );
+			if (0 >= $order->get_total()) {
+				return $this->complete_free_order($order);
 			}
 
 			// This will throw exception if not valid.
-			$this->validate_minimum_order_amount( $order );
+			$this->validate_minimum_order_amount($order);
 
-			WC_Stripe_Logger::log( "Info: Begin processing payment for order $order_id for the amount of {$order->get_total()}" );
+			WC_Stripe_Logger::log("Info: Begin processing payment for order $order_id for the amount of {$order->get_total()}");
 
-			$intent = $this->get_intent_from_order( $order );
-			if ( $intent ) {
-				$intent = $this->update_existing_intent( $intent, $order, $prepared_source );
+			$intent = $this->get_intent_from_order($order);
+			if ($intent) {
+				$intent = $this->update_existing_intent($intent, $order, $prepared_source);
 			} else {
-				$intent   = $this->create_and_confirm_intent( $order, $prepared_source );
+				$intent   = $this->create_and_confirm_intent($order, $prepared_source);
 				$response = $intent;
 			}
 
-			if ( ! empty( $response->error ) ) {
-				$this->maybe_remove_non_existent_customer( $response->error, $order );
+			if ( ! empty($response->error)) {
+				$this->maybe_remove_non_existent_customer($response->error, $order);
 
 				// We want to retry.
-				if ( $this->is_retryable_error( $response->error ) ) {
-					return $this->retry_after_error( $response, $order, $retry, $force_save_source, $previous_error );
+				if ($this->is_retryable_error($response->error)) {
+					return $this->retry_after_error($response, $order, $retry, $force_save_source, $previous_error);
 				}
 
-				$this->throw_localized_message( $response, $order );
+				$this->throw_localized_message($response, $order);
 			}
 
-			if ( ! empty( $intent ) ) {
+			if ( ! empty($intent)) {
 				// Use the last charge within the intent to proceed.
-				$response = end( $intent->charges->data );
+				$response = end($intent->charges->data);
 
 				// If the intent requires a 3DS flow, redirect to it.
-				if ( 'requires_action' === $intent->status ) {
-					if ( is_wc_endpoint_url( 'order-pay' ) ) {
-						$redirect_url = add_query_arg( 'wc-stripe-confirmation', 1, $order->get_checkout_payment_url( false ) );
+				if ('requires_action' === $intent->status) {
+					if (is_wc_endpoint_url('order-pay')) {
+						$redirect_url = add_query_arg('wc-stripe-confirmation', 1, $order->get_checkout_payment_url(false));
 
 						return array(
 							'result'   => 'success',
@@ -658,7 +658,7 @@ 
 
 						return array(
 							'result'           => 'success',
-							'redirect'         => $this->get_return_url( $order ),
+							'redirect'         => $this->get_return_url($order),
 							'intent_secret'    => $intent->client_secret,
 						);
 					}
@@ -666,7 +666,7 @@ 
 			}
 
 			// Process valid response.
-			$this->process_response( $response, $order );
+			$this->process_response($response, $order);
 
 			// Remove cart.
 			WC()->cart->empty_cart();
@@ -674,17 +674,17 @@ 
 			// Return thank you page redirect.
 			return array(
 				'result'   => 'success',
-				'redirect' => $this->get_return_url( $order ),
+				'redirect' => $this->get_return_url($order),
 			);
 
-		} catch ( WC_Stripe_Exception $e ) {
-			wc_add_notice( $e->getLocalizedMessage(), 'error' );
-			WC_Stripe_Logger::log( 'Error: ' . $e->getMessage() );
+		} catch (WC_Stripe_Exception $e) {
+			wc_add_notice($e->getLocalizedMessage(), 'error');
+			WC_Stripe_Logger::log('Error: ' . $e->getMessage());
 
-			do_action( 'wc_gateway_stripe_process_payment_error', $e, $order );
+			do_action('wc_gateway_stripe_process_payment_error', $e, $order);
 
 			/* translators: error message */
-			$order->update_status( 'failed' );
+			$order->update_status('failed');
 
 			return array(
 				'result'   => 'fail',
@@ -700,17 +700,17 @@ 
 	 *
 	 * @param int $order_id The ID of the order.
 	 */
-	public function display_order_fee( $order_id ) {
-		if ( apply_filters( 'wc_stripe_hide_display_order_fee', false, $order_id ) ) {
+	public function display_order_fee($order_id) {
+		if (apply_filters('wc_stripe_hide_display_order_fee', false, $order_id)) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$fee      = WC_Stripe_Helper::get_stripe_fee( $order );
-		$currency = WC_Stripe_Helper::get_stripe_currency( $order );
+		$fee      = WC_Stripe_Helper::get_stripe_fee($order);
+		$currency = WC_Stripe_Helper::get_stripe_currency($order);
 
-		if ( ! $fee || ! $currency ) {
+		if ( ! $fee || ! $currency) {
 			return;
 		}
 
@@ -718,12 +718,12 @@ 
 
 		<tr>
 			<td class="label stripe-fee">
-				<?php echo wc_help_tip( __( 'This represents the fee Stripe collects for the transaction.', 'woocommerce-gateway-stripe' ) ); // wpcs: xss ok. ?>
-				<?php esc_html_e( 'Stripe Fee:', 'woocommerce-gateway-stripe' ); ?>
+				<?php echo wc_help_tip(__('This represents the fee Stripe collects for the transaction.', 'woocommerce-gateway-stripe')); // wpcs: xss ok. ?>
+				<?php esc_html_e('Stripe Fee:', 'woocommerce-gateway-stripe'); ?>
 			</td>
 			<td width="1%"></td>
 			<td class="total">
-				-&nbsp;<?php echo wc_price( $fee, array( 'currency' => $currency ) ); // wpcs: xss ok. ?>
+				-&nbsp;<?php echo wc_price($fee, array('currency' => $currency)); // wpcs: xss ok. ?>
 			</td>
 		</tr>
 
@@ -737,17 +737,17 @@ 
 	 *
 	 * @param int $order_id The ID of the order.
 	 */
-	public function display_order_payout( $order_id ) {
-		if ( apply_filters( 'wc_stripe_hide_display_order_payout', false, $order_id ) ) {
+	public function display_order_payout($order_id) {
+		if (apply_filters('wc_stripe_hide_display_order_payout', false, $order_id)) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$net      = WC_Stripe_Helper::get_stripe_net( $order );
-		$currency = WC_Stripe_Helper::get_stripe_currency( $order );
+		$net      = WC_Stripe_Helper::get_stripe_net($order);
+		$currency = WC_Stripe_Helper::get_stripe_currency($order);
 
-		if ( ! $net || ! $currency ) {
+		if ( ! $net || ! $currency) {
 			return;
 		}
 
@@ -755,12 +755,12 @@ 
 
 		<tr>
 			<td class="label stripe-payout">
-				<?php echo wc_help_tip( __( 'This represents the net total that will be credited to your Stripe bank account. This may be in the currency that is set in your Stripe account.', 'woocommerce-gateway-stripe' ) ); // wpcs: xss ok. ?>
-				<?php esc_html_e( 'Stripe Payout:', 'woocommerce-gateway-stripe' ); ?>
+				<?php echo wc_help_tip(__('This represents the net total that will be credited to your Stripe bank account. This may be in the currency that is set in your Stripe account.', 'woocommerce-gateway-stripe')); // wpcs: xss ok. ?>
+				<?php esc_html_e('Stripe Payout:', 'woocommerce-gateway-stripe'); ?>
 			</td>
 			<td width="1%"></td>
 			<td class="total">
-				<?php echo wc_price( $net, array( 'currency' => $currency ) ); // wpcs: xss ok. ?>
+				<?php echo wc_price($net, array('currency' => $currency)); // wpcs: xss ok. ?>
 			</td>
 		</tr>
 
@@ -773,16 +773,16 @@ 
 	 * @since 4.2.0
 	 */
 	public function display_three_d_secure_notice() {
-		if ( $this->get_option( '3ds_setting_notice_dismissed' ) ) {
+		if ($this->get_option('3ds_setting_notice_dismissed')) {
 			return;
 		}
 		?>
-		<div data-nonce="<?php echo esc_attr( wp_create_nonce( 'no-3ds' ) ); ?>" class="notice notice-warning is-dismissible wc-stripe-3ds-missing">
+		<div data-nonce="<?php echo esc_attr(wp_create_nonce('no-3ds')); ?>" class="notice notice-warning is-dismissible wc-stripe-3ds-missing">
 			<p>
 				<?php
 				$url = 'https://stripe.com/docs/payments/dynamic-3ds';
 				/* translators: 1) A URL that explains Stripe Radar. */
-				$message = __( '<strong>WooCommerce Stripe Gateway:</strong> We see that you had the "Require 3D secure when applicable" setting turned on. This setting is not available here anymore, because it is now replaced by Stripe Radar. You can learn more about it <a href="%s">here</a>.', 'woocommerce-gateway-stripe' );
+				$message = __('<strong>WooCommerce Stripe Gateway:</strong> We see that you had the "Require 3D secure when applicable" setting turned on. This setting is not available here anymore, because it is now replaced by Stripe Radar. You can learn more about it <a href="%s">here</a>.', 'woocommerce-gateway-stripe');
 
 				$allowed_tags = array(
 					'strong' => array(),
@@ -790,7 +790,7 @@ 
 						'href' => array(),
 					),
 				);
-				printf( wp_kses( $message, $allowed_tags ), esc_url( $url ) );
+				printf(wp_kses($message, $allowed_tags), esc_url($url));
 				?>
 			</p>
 		</div>
@@ -805,18 +805,18 @@ 
 	 * @param  WC_Order $order     The order to add a note to.
 	 * @throws WC_Stripe_Exception An exception with the right message.
 	 */
-	public function throw_localized_message( $response, $order ) {
+	public function throw_localized_message($response, $order) {
 		$localized_messages = WC_Stripe_Helper::get_localized_messages();
 
-		if ( 'card_error' === $response->error->type ) {
-			$localized_message = isset( $localized_messages[ $response->error->code ] ) ? $localized_messages[ $response->error->code ] : $response->error->message;
+		if ('card_error' === $response->error->type) {
+			$localized_message = isset($localized_messages[$response->error->code]) ? $localized_messages[$response->error->code] : $response->error->message;
 		} else {
-			$localized_message = isset( $localized_messages[ $response->error->type ] ) ? $localized_messages[ $response->error->type ] : $response->error->message;
+			$localized_message = isset($localized_messages[$response->error->type]) ? $localized_messages[$response->error->type] : $response->error->message;
 		}
 
-		$order->add_order_note( $localized_message );
+		$order->add_order_note($localized_message);
 
-		throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+		throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 	}
 
 	/**
@@ -831,22 +831,22 @@ 
 	 * @throws WC_Stripe_Exception        If the payment is not accepted.
 	 * @return array|void
 	 */
-	public function retry_after_error( $response, $order, $retry, $force_save_source, $previous_error ) {
-		if ( ! $retry ) {
-			$localized_message = __( 'Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe' );
-			$order->add_order_note( $localized_message );
-			throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.
+	public function retry_after_error($response, $order, $retry, $force_save_source, $previous_error) {
+		if ( ! $retry) {
+			$localized_message = __('Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe');
+			$order->add_order_note($localized_message);
+			throw new WC_Stripe_Exception(print_r($response, true), $localized_message); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.
 		}
 
 		// Don't do anymore retries after this.
-		if ( 5 <= $this->retry_interval ) {
-			return $this->process_payment( $order->get_id(), false, $force_save_source, $response->error, $previous_error );
+		if (5 <= $this->retry_interval) {
+			return $this->process_payment($order->get_id(), false, $force_save_source, $response->error, $previous_error);
 		}
 
-		sleep( $this->retry_interval );
+		sleep($this->retry_interval);
 		$this->retry_interval++;
 
-		return $this->process_payment( $order->get_id(), true, $force_save_source, $response->error, $previous_error );
+		return $this->process_payment($order->get_id(), true, $force_save_source, $response->error, $previous_error);
 	}
 
 	/**
@@ -857,16 +857,16 @@ 
 	 * @param WC_Payment_Gateway[] $gateways A list of all available gateways.
 	 * @return WC_Payment_Gateway[]          Either the same list or an empty one in the right conditions.
 	 */
-	public function prepare_order_pay_page( $gateways ) {
-		if ( ! is_wc_endpoint_url( 'order-pay' ) || ! isset( $_GET['wc-stripe-confirmation'] ) ) { // wpcs: csrf ok.
+	public function prepare_order_pay_page($gateways) {
+		if ( ! is_wc_endpoint_url('order-pay') || ! isset($_GET['wc-stripe-confirmation'])) { // wpcs: csrf ok.
 			return $gateways;
 		}
 
-		add_filter( 'woocommerce_checkout_show_terms', '__return_false' );
-		add_filter( 'woocommerce_pay_order_button_html', '__return_false' );
-		add_filter( 'woocommerce_available_payment_gateways', array( $this, '__return_empty_array' ) );
-		add_filter( 'woocommerce_no_available_payment_methods_message', array( $this, 'change_no_available_methods_message' ) );
-		add_action( 'woocommerce_pay_order_after_submit', array( $this, 'render_payment_intent_inputs' ) );
+		add_filter('woocommerce_checkout_show_terms', '__return_false');
+		add_filter('woocommerce_pay_order_button_html', '__return_false');
+		add_filter('woocommerce_available_payment_gateways', array($this, '__return_empty_array'));
+		add_filter('woocommerce_no_available_payment_methods_message', array($this, 'change_no_available_methods_message'));
+		add_action('woocommerce_pay_order_after_submit', array($this, 'render_payment_intent_inputs'));
 
 		return array();
 	}
@@ -879,7 +879,7 @@ 
 	 * @return string the new message.
 	 */
 	public function change_no_available_methods_message() {
-		return wpautop( __( "Almost there!\n\nYour order has already been created, the only thing that still needs to be done is for you to authorize the payment with your bank.", 'woocommerce-gateway-stripe' ) );
+		return wpautop(__("Almost there!\n\nYour order has already been created, the only thing that still needs to be done is for you to authorize the payment with your bank.", 'woocommerce-gateway-stripe'));
 	}
 
 	/**
@@ -888,21 +888,21 @@ 
 	 * @since 4.2
 	 */
 	public function render_payment_intent_inputs() {
-		$order     = wc_get_order( absint( get_query_var( 'order-pay' ) ) );
-		$intent    = $this->get_intent_from_order( $order );
+		$order     = wc_get_order(absint(get_query_var('order-pay')));
+		$intent    = $this->get_intent_from_order($order);
 
 		$verification_url = add_query_arg(
 			array(
 				'order'            => $order->get_id(),
-				'nonce'            => wp_create_nonce( 'wc_stripe_confirm_pi' ),
-				'redirect_to'      => rawurlencode( $this->get_return_url( $order ) ),
+				'nonce'            => wp_create_nonce('wc_stripe_confirm_pi'),
+				'redirect_to'      => rawurlencode($this->get_return_url($order)),
 				'is_pay_for_order' => true,
 			),
-			WC_AJAX::get_endpoint( 'wc_stripe_verify_intent' )
+			WC_AJAX::get_endpoint('wc_stripe_verify_intent')
 		);
 
-		echo '<input type="hidden" id="stripe-intent-id" value="' . esc_attr( $intent->client_secret ) . '" />';
-		echo '<input type="hidden" id="stripe-intent-return" value="' . esc_attr( $verification_url ) . '" />';
+		echo '<input type="hidden" id="stripe-intent-id" value="' . esc_attr($intent->client_secret) . '" />';
+		echo '<input type="hidden" id="stripe-intent-return" value="' . esc_attr($verification_url) . '" />';
 	}
 
 	/**
@@ -912,11 +912,11 @@ 
 	 * @param WC_Payment_Token $token Payment Token.
 	 * @return string                 Generated payment method HTML
 	 */
-	public function get_saved_payment_method_option_html( $token ) {
-		$html          = parent::get_saved_payment_method_option_html( $token );
+	public function get_saved_payment_method_option_html($token) {
+		$html          = parent::get_saved_payment_method_option_html($token);
 		$error_wrapper = '<div class="stripe-source-errors" role="alert"></div>';
 
-		return preg_replace( '~</(\w+)>\s*$~', "$error_wrapper</$1>", $html );
+		return preg_replace('~</(\w+)>\s*$~', "$error_wrapper</$1>", $html);
 	}
 
 	/**
@@ -926,13 +926,13 @@ 
 	 * @since 4.2.0
 	 * @param int $order_id The ID that will be used for the thank you page.
 	 */
-	public function check_intent_status_on_order_page( $order_id ) {
-		if ( empty( $order_id ) || absint( $order_id ) <= 0 ) {
+	public function check_intent_status_on_order_page($order_id) {
+		if (empty($order_id) || absint($order_id) <= 0) {
 			return;
 		}
 
-		$order = wc_get_order( absint( $order_id ) );
-		$this->verify_intent_after_checkout( $order );
+		$order = wc_get_order(absint($order_id));
+		$this->verify_intent_after_checkout($order);
 	}
 
 	/**
@@ -946,9 +946,9 @@ 
 	 * @param int   $order_id The ID of the order which is being paid for.
 	 * @return array
 	 */
-	public function modify_successful_payment_result( $result, $order_id ) {
+	public function modify_successful_payment_result($result, $order_id) {
 		// Only redirects with intents need to be modified.
-		if ( ! isset( $result['intent_secret'] ) ) {
+		if ( ! isset($result['intent_secret'])) {
 			return $result;
 		}
 
@@ -956,14 +956,14 @@ 
 		$verification_url = add_query_arg(
 			array(
 				'order'       => $order_id,
-				'nonce'       => wp_create_nonce( 'wc_stripe_confirm_pi' ),
-				'redirect_to' => rawurlencode( $result['redirect'] ),
+				'nonce'       => wp_create_nonce('wc_stripe_confirm_pi'),
+				'redirect_to' => rawurlencode($result['redirect']),
 			),
-			WC_AJAX::get_endpoint( 'wc_stripe_verify_intent' )
+			WC_AJAX::get_endpoint('wc_stripe_verify_intent')
 		);
 
 		// Combine into a hash.
-		$redirect = sprintf( '#confirm-pi-%s:%s', $result['intent_secret'], rawurlencode( $verification_url ) );
+		$redirect = sprintf('#confirm-pi-%s:%s', $result['intent_secret'], rawurlencode($verification_url));
 
 		return array(
 			'result'   => 'success',
@@ -978,36 +978,36 @@ 
 	 * @since 4.2.0
 	 * @param WC_Order $order The order which is in a transitional state.
 	 */
-	public function verify_intent_after_checkout( $order ) {
-		if ( 'pending' !== $order->get_status() && 'failed' !== $order->get_status() ) {
+	public function verify_intent_after_checkout($order) {
+		if ('pending' !== $order->get_status() && 'failed' !== $order->get_status()) {
 			// If payment has already been completed, this function is redundant.
 			return;
 		}
 
-		if ( $order->get_payment_method() !== $this->id ) {
+		if ($order->get_payment_method() !== $this->id) {
 			// If this is not the payment method, an intent would not be available.
 			return;
 		}
 
-		$intent = $this->get_intent_from_order( $order );
-		if ( ! $intent ) {
+		$intent = $this->get_intent_from_order($order);
+		if ( ! $intent) {
 			// No intent, redirect to the order received page for further actions.
 			return;
 		}
 
-		if ( $this->lock_order_payment( $order, $intent ) ) {
+		if ($this->lock_order_payment($order, $intent)) {
 			return;
 		}
 
-		if ( 'succeeded' === $intent->status ) {
+		if ('succeeded' === $intent->status) {
 			// Proceed with the payment completion.
-			$this->process_response( end( $intent->charges->data ), $order );
-		} else if ( 'requires_payment_method' === $intent->status ) {
+			$this->process_response(end($intent->charges->data), $order);
+		} else if ('requires_payment_method' === $intent->status) {
 			// `requires_payment_method` means that SCA got denied for the current payment method.
-			$this->failed_sca_auth( $order, $intent );
+			$this->failed_sca_auth($order, $intent);
 		}
 
-		$this->unlock_order_payment( $order );
+		$this->unlock_order_payment($order);
 	}
 
 	/**
@@ -1017,19 +1017,19 @@ 
 	 * @param WC_Order $order  The order which should be checked.
 	 * @param object   $intent The intent, associated with the order.
 	 */
-	public function failed_sca_auth( $order, $intent ) {
+	public function failed_sca_auth($order, $intent) {
 		// If the order has already failed, do not repeat the same message.
-		if ( 'failed' === $order->get_status() ) {
+		if ('failed' === $order->get_status()) {
 			return;
 		}
 
 		// Load the right message and update the status.
-		$status_message = ( $intent->last_payment_error )
+		$status_message = ($intent->last_payment_error)
 			/* translators: 1) The error message that was received from Stripe. */
-			? sprintf( __( 'Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe' ), $intent->last_payment_error->message )
-			: __( 'Stripe SCA authentication failed.', 'woocommerce-gateway-stripe' );
-		$order->update_status( 'failed', $status_message );
+			? sprintf(__('Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe'), $intent->last_payment_error->message)
+			: __('Stripe SCA authentication failed.', 'woocommerce-gateway-stripe');
+		$order->update_status('failed', $status_message);
 
-		$this->send_failed_order_email( $order->get_id() );
+		$this->send_failed_order_email($order->get_id());
 	}
 }

includes/admin/stripe-settings.php

Spacing +52 added lines, -52 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -7,146 +7,146 @@ 
 	'wc_stripe_settings',
 	array(
 		'enabled'                       => array(
-			'title'       => __( 'Enable/Disable', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Stripe', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Enable/Disable', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Stripe', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
 			'description' => '',
 			'default'     => 'no',
 		),
 		'title'                         => array(
-			'title'       => __( 'Title', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Title', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce-gateway-stripe' ),
-			'default'     => __( 'Credit Card (Stripe)', 'woocommerce-gateway-stripe' ),
+			'description' => __('This controls the title which the user sees during checkout.', 'woocommerce-gateway-stripe'),
+			'default'     => __('Credit Card (Stripe)', 'woocommerce-gateway-stripe'),
 			'desc_tip'    => true,
 		),
 		'description'                   => array(
-			'title'       => __( 'Description', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Description', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'This controls the description which the user sees during checkout.', 'woocommerce-gateway-stripe' ),
-			'default'     => __( 'Pay with your credit card via Stripe.', 'woocommerce-gateway-stripe' ),
+			'description' => __('This controls the description which the user sees during checkout.', 'woocommerce-gateway-stripe'),
+			'default'     => __('Pay with your credit card via Stripe.', 'woocommerce-gateway-stripe'),
 			'desc_tip'    => true,
 		),
 		'webhook'                       => array(
-			'title'       => __( 'Webhook Endpoints', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Webhook Endpoints', 'woocommerce-gateway-stripe'),
 			'type'        => 'title',
 			/* translators: webhook URL */
 			'description' => $this->display_admin_settings_webhook_description(),
 		),
 		'testmode'                      => array(
-			'title'       => __( 'Test mode', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Test Mode', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test mode', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Test Mode', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Place the payment gateway in test mode using test API keys.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Place the payment gateway in test mode using test API keys.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'test_publishable_key'          => array(
-			'title'       => __( 'Test Publishable Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Publishable Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'test_secret_key'               => array(
-			'title'       => __( 'Test Secret Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Secret Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'publishable_key'               => array(
-			'title'       => __( 'Live Publishable Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Live Publishable Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'secret_key'                    => array(
-			'title'       => __( 'Live Secret Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Live Secret Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'inline_cc_form'                => array(
-			'title'       => __( 'Inline Credit Card Form', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Inline Credit Card Form', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Choose the style you want to show for your credit card form. When unchecked, the credit card form will display separate credit card number field, expiry date field and cvc field.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Choose the style you want to show for your credit card form. When unchecked, the credit card form will display separate credit card number field, expiry date field and cvc field.', 'woocommerce-gateway-stripe'),
 			'default'     => 'no',
 			'desc_tip'    => true,
 		),
 		'statement_descriptor'          => array(
-			'title'       => __( 'Statement Descriptor', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Statement Descriptor', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Statement descriptors are limited to 22 characters, cannot use the special characters >, <, ", \, \', *, and must not consist solely of numbers. This will appear on your customer\'s statement in capital letters.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Statement descriptors are limited to 22 characters, cannot use the special characters >, <, ", \, \', *, and must not consist solely of numbers. This will appear on your customer\'s statement in capital letters.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'capture'                       => array(
-			'title'       => __( 'Capture', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Capture charge immediately', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Capture', 'woocommerce-gateway-stripe'),
+			'label'       => __('Capture charge immediately', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Whether or not to immediately capture the charge. When unchecked, the charge issues an authorization and will need to be captured later. Uncaptured charges expire in 7 days.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Whether or not to immediately capture the charge. When unchecked, the charge issues an authorization and will need to be captured later. Uncaptured charges expire in 7 days.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'payment_request'               => array(
-			'title'       => __( 'Payment Request Buttons', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Buttons', 'woocommerce-gateway-stripe'),
 			/* translators: 1) br tag 2) opening anchor tag 3) closing anchor tag */
-			'label'       => sprintf( __( 'Enable Payment Request Buttons. (Apple Pay/Chrome Payment Request API) %1$sBy using Apple Pay, you agree to %2$s and %3$s\'s terms of service.', 'woocommerce-gateway-stripe' ), '<br />', '<a href="https://stripe.com/apple-pay/legal" target="_blank">Stripe</a>', '<a href="https://developer.apple.com/apple-pay/acceptable-use-guidelines-for-websites/" target="_blank">Apple</a>' ),
+			'label'       => sprintf(__('Enable Payment Request Buttons. (Apple Pay/Chrome Payment Request API) %1$sBy using Apple Pay, you agree to %2$s and %3$s\'s terms of service.', 'woocommerce-gateway-stripe'), '<br />', '<a href="https://stripe.com/apple-pay/legal" target="_blank">Stripe</a>', '<a href="https://developer.apple.com/apple-pay/acceptable-use-guidelines-for-websites/" target="_blank">Apple</a>'),
 			'type'        => 'checkbox',
-			'description' => __( 'If enabled, users will be able to pay using Apple Pay or Chrome Payment Request if supported by the browser.', 'woocommerce-gateway-stripe' ),
+			'description' => __('If enabled, users will be able to pay using Apple Pay or Chrome Payment Request if supported by the browser.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'payment_request_button_type'   => array(
-			'title'       => __( 'Payment Request Button Type', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Type', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Type', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Type', 'woocommerce-gateway-stripe'),
 			'type'        => 'select',
-			'description' => __( 'Select the button type you would like to show.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Select the button type you would like to show.', 'woocommerce-gateway-stripe'),
 			'default'     => 'buy',
 			'desc_tip'    => true,
 			'options'     => array(
-				'default' => __( 'Default', 'woocommerce-gateway-stripe' ),
-				'buy'     => __( 'Buy', 'woocommerce-gateway-stripe' ),
-				'donate'  => __( 'Donate', 'woocommerce-gateway-stripe' ),
+				'default' => __('Default', 'woocommerce-gateway-stripe'),
+				'buy'     => __('Buy', 'woocommerce-gateway-stripe'),
+				'donate'  => __('Donate', 'woocommerce-gateway-stripe'),
 			),
 		),
 		'payment_request_button_theme'  => array(
-			'title'       => __( 'Payment Request Button Theme', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Theme', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Theme', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Theme', 'woocommerce-gateway-stripe'),
 			'type'        => 'select',
-			'description' => __( 'Select the button theme you would like to show.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Select the button theme you would like to show.', 'woocommerce-gateway-stripe'),
 			'default'     => 'dark',
 			'desc_tip'    => true,
 			'options'     => array(
-				'dark'          => __( 'Dark', 'woocommerce-gateway-stripe' ),
-				'light'         => __( 'Light', 'woocommerce-gateway-stripe' ),
-				'light-outline' => __( 'Light-Outline', 'woocommerce-gateway-stripe' ),
+				'dark'          => __('Dark', 'woocommerce-gateway-stripe'),
+				'light'         => __('Light', 'woocommerce-gateway-stripe'),
+				'light-outline' => __('Light-Outline', 'woocommerce-gateway-stripe'),
 			),
 		),
 		'payment_request_button_height' => array(
-			'title'       => __( 'Payment Request Button Height', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Height', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Height', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Height', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Enter the height you would like the button to be in pixels. Width will always be 100%.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Enter the height you would like the button to be in pixels. Width will always be 100%.', 'woocommerce-gateway-stripe'),
 			'default'     => '44',
 			'desc_tip'    => true,
 		),
 		'saved_cards'                   => array(
-			'title'       => __( 'Saved Cards', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Payment via Saved Cards', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Saved Cards', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Payment via Saved Cards', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'If enabled, users will be able to pay with a saved card during checkout. Card details are saved on Stripe servers, not on your store.', 'woocommerce-gateway-stripe' ),
+			'description' => __('If enabled, users will be able to pay with a saved card during checkout. Card details are saved on Stripe servers, not on your store.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'logging'                       => array(
-			'title'       => __( 'Logging', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Log debug messages', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Logging', 'woocommerce-gateway-stripe'),
+			'label'       => __('Log debug messages', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Save debug messages to the WooCommerce System Status log.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Save debug messages to the WooCommerce System Status log.', 'woocommerce-gateway-stripe'),
 			'default'     => 'no',
 			'desc_tip'    => true,
 		),

includes/payment-methods/class-wc-stripe-payment-request.php

Spacing +297 added lines, -297 removed lines

@@ -6,7 +6,7 @@ 
  * @since   4.0.0
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -64,41 +64,41 @@ 
 	 */
 	public function __construct() {
 		self::$_this            = $this;
-		$this->stripe_settings  = get_option( 'woocommerce_stripe_settings', array() );
-		$this->testmode         = ( ! empty( $this->stripe_settings['testmode'] ) && 'yes' === $this->stripe_settings['testmode'] ) ? true : false;
-		$this->publishable_key  = ! empty( $this->stripe_settings['publishable_key'] ) ? $this->stripe_settings['publishable_key'] : '';
-		$this->secret_key       = ! empty( $this->stripe_settings['secret_key'] ) ? $this->stripe_settings['secret_key'] : '';
-		$this->total_label      = ! empty( $this->stripe_settings['statement_descriptor'] ) ? WC_Stripe_Helper::clean_statement_descriptor( $this->stripe_settings['statement_descriptor'] ) : '';
+		$this->stripe_settings  = get_option('woocommerce_stripe_settings', array());
+		$this->testmode         = ( ! empty($this->stripe_settings['testmode']) && 'yes' === $this->stripe_settings['testmode']) ? true : false;
+		$this->publishable_key  = ! empty($this->stripe_settings['publishable_key']) ? $this->stripe_settings['publishable_key'] : '';
+		$this->secret_key       = ! empty($this->stripe_settings['secret_key']) ? $this->stripe_settings['secret_key'] : '';
+		$this->total_label      = ! empty($this->stripe_settings['statement_descriptor']) ? WC_Stripe_Helper::clean_statement_descriptor($this->stripe_settings['statement_descriptor']) : '';
 
-		if ( $this->testmode ) {
-			$this->publishable_key = ! empty( $this->stripe_settings['test_publishable_key'] ) ? $this->stripe_settings['test_publishable_key'] : '';
-			$this->secret_key      = ! empty( $this->stripe_settings['test_secret_key'] ) ? $this->stripe_settings['test_secret_key'] : '';
+		if ($this->testmode) {
+			$this->publishable_key = ! empty($this->stripe_settings['test_publishable_key']) ? $this->stripe_settings['test_publishable_key'] : '';
+			$this->secret_key      = ! empty($this->stripe_settings['test_secret_key']) ? $this->stripe_settings['test_secret_key'] : '';
 		}
 
-		$this->total_label = str_replace( "'", '', $this->total_label ) . apply_filters( 'wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)' );
+		$this->total_label = str_replace("'", '', $this->total_label) . apply_filters('wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)');
 
 		// Checks if Stripe Gateway is enabled.
-		if ( empty( $this->stripe_settings ) || ( isset( $this->stripe_settings['enabled'] ) && 'yes' !== $this->stripe_settings['enabled'] ) ) {
+		if (empty($this->stripe_settings) || (isset($this->stripe_settings['enabled']) && 'yes' !== $this->stripe_settings['enabled'])) {
 			return;
 		}
 
 		// Checks if Payment Request is enabled.
-		if ( ! isset( $this->stripe_settings['payment_request'] ) || 'yes' !== $this->stripe_settings['payment_request'] ) {
+		if ( ! isset($this->stripe_settings['payment_request']) || 'yes' !== $this->stripe_settings['payment_request']) {
 			return;
 		}
 
 		// Don't load for change payment method page.
-		if ( isset( $_GET['change_payment_method'] ) ) {
+		if (isset($_GET['change_payment_method'])) {
 			return;
 		}
 
-		$wc_default_country = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$wc_default_country = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		if ( ! in_array( $wc_default_country, $this->get_stripe_supported_countries() ) ) {
+		if ( ! in_array($wc_default_country, $this->get_stripe_supported_countries())) {
 			return;
 		}
 
-		add_action( 'template_redirect', array( $this, 'set_session' ) );
+		add_action('template_redirect', array($this, 'set_session'));
 		$this->init();
 	}
 
@@ -109,7 +109,7 @@ 
 	 * @return array The list of countries.
 	 */
 	public function get_stripe_supported_countries() {
-		return apply_filters( 'wc_stripe_supported_countries', array( 'AT', 'AU', 'BE', 'BR', 'CA', 'CH', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'HK', 'IE', 'IN', 'IT', 'JP', 'LT', 'LU', 'LV', 'MX', 'NL', 'NZ', 'NO', 'PH', 'PL', 'PR', 'PT', 'RO', 'SE', 'SG', 'SK', 'US' ) );
+		return apply_filters('wc_stripe_supported_countries', array('AT', 'AU', 'BE', 'BR', 'CA', 'CH', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'HK', 'IE', 'IN', 'IT', 'JP', 'LT', 'LU', 'LV', 'MX', 'NL', 'NZ', 'NO', 'PH', 'PL', 'PR', 'PT', 'RO', 'SE', 'SG', 'SK', 'US'));
 	}
 
 	/**
@@ -119,7 +119,7 @@ 
 	 * @return bool
 	 */
 	public function are_keys_set() {
-		if ( empty( $this->secret_key ) || empty( $this->publishable_key ) ) {
+		if (empty($this->secret_key) || empty($this->publishable_key)) {
 			return false;
 		}
 
@@ -143,18 +143,18 @@ 
 	 * @since 4.0.0
 	 */
 	public function set_session() {
-		if ( ! is_product() || ( isset( WC()->session ) && WC()->session->has_session() ) ) {
+		if ( ! is_product() || (isset(WC()->session) && WC()->session->has_session())) {
 			return;
 		}
 
-		$session_class = apply_filters( 'woocommerce_session_handler', 'WC_Session_Handler' );
+		$session_class = apply_filters('woocommerce_session_handler', 'WC_Session_Handler');
 		$wc_session    = new $session_class();
 
-		if ( version_compare( WC_VERSION, '3.3', '>=' ) ) {
+		if (version_compare(WC_VERSION, '3.3', '>=')) {
 			$wc_session->init();
 		}
 
-		$wc_session->set_customer_session_cookie( true );
+		$wc_session->set_customer_session_cookie(true);
 	}
 
 	/**
@@ -164,40 +164,40 @@ 
 	 * @version 4.0.0
 	 */
 	public function init() {
-		add_action( 'wp_enqueue_scripts', array( $this, 'scripts' ) );
+		add_action('wp_enqueue_scripts', array($this, 'scripts'));
 
 		/*
 		 * In order to display the Payment Request button in the correct position,
 		 * a new hook was added to WooCommerce 3.0. In older versions of WooCommerce,
 		 * CSS is used to position the button.
 		 */
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_separator_html'), 2);
 		} else {
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_separator_html'), 2);
 		}
 
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'wc_ajax_wc_stripe_get_cart_details', array( $this, 'ajax_get_cart_details' ) );
-		add_action( 'wc_ajax_wc_stripe_get_shipping_options', array( $this, 'ajax_get_shipping_options' ) );
-		add_action( 'wc_ajax_wc_stripe_update_shipping_method', array( $this, 'ajax_update_shipping_method' ) );
-		add_action( 'wc_ajax_wc_stripe_create_order', array( $this, 'ajax_create_order' ) );
-		add_action( 'wc_ajax_wc_stripe_add_to_cart', array( $this, 'ajax_add_to_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_get_selected_product_data', array( $this, 'ajax_get_selected_product_data' ) );
-		add_action( 'wc_ajax_wc_stripe_clear_cart', array( $this, 'ajax_clear_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_log_errors', array( $this, 'ajax_log_errors' ) );
+		add_action('wc_ajax_wc_stripe_get_cart_details', array($this, 'ajax_get_cart_details'));
+		add_action('wc_ajax_wc_stripe_get_shipping_options', array($this, 'ajax_get_shipping_options'));
+		add_action('wc_ajax_wc_stripe_update_shipping_method', array($this, 'ajax_update_shipping_method'));
+		add_action('wc_ajax_wc_stripe_create_order', array($this, 'ajax_create_order'));
+		add_action('wc_ajax_wc_stripe_add_to_cart', array($this, 'ajax_add_to_cart'));
+		add_action('wc_ajax_wc_stripe_get_selected_product_data', array($this, 'ajax_get_selected_product_data'));
+		add_action('wc_ajax_wc_stripe_clear_cart', array($this, 'ajax_clear_cart'));
+		add_action('wc_ajax_wc_stripe_log_errors', array($this, 'ajax_log_errors'));
 
-		add_filter( 'woocommerce_gateway_title', array( $this, 'filter_gateway_title' ), 10, 2 );
-		add_filter( 'woocommerce_validate_postcode', array( $this, 'postal_code_validation' ), 10, 3 );
+		add_filter('woocommerce_gateway_title', array($this, 'filter_gateway_title'), 10, 2);
+		add_filter('woocommerce_validate_postcode', array($this, 'postal_code_validation'), 10, 3);
 
-		add_action( 'woocommerce_checkout_order_processed', array( $this, 'add_order_meta' ), 10, 2 );
+		add_action('woocommerce_checkout_order_processed', array($this, 'add_order_meta'), 10, 2);
 	}
 
 	/**
@@ -208,7 +208,7 @@ 
 	 * @return string
 	 */
 	public function get_button_type() {
-		return isset( $this->stripe_settings['payment_request_button_type'] ) ? $this->stripe_settings['payment_request_button_type'] : 'default';
+		return isset($this->stripe_settings['payment_request_button_type']) ? $this->stripe_settings['payment_request_button_type'] : 'default';
 	}
 
 	/**
@@ -219,7 +219,7 @@ 
 	 * @return string
 	 */
 	public function get_button_theme() {
-		return isset( $this->stripe_settings['payment_request_button_theme'] ) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
+		return isset($this->stripe_settings['payment_request_button_theme']) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
 	}
 
 	/**
@@ -230,7 +230,7 @@ 
 	 * @return string
 	 */
 	public function get_button_height() {
-		return isset( $this->stripe_settings['payment_request_button_height'] ) ? str_replace( 'px', '', $this->stripe_settings['payment_request_button_height'] ) : '64';
+		return isset($this->stripe_settings['payment_request_button_height']) ? str_replace('px', '', $this->stripe_settings['payment_request_button_height']) : '64';
 	}
 
 	/**
@@ -240,40 +240,40 @@ 
 	 * @version 4.0.0
 	 */
 	public function get_product_data() {
-		if ( ! is_product() ) {
+		if ( ! is_product()) {
 			return false;
 		}
 
 		global $post;
 
-		$product = wc_get_product( $post->ID );
+		$product = wc_get_product($post->ID);
 
 		$data  = array();
 		$items = array();
 
 		$items[] = array(
-			'label'  => WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->name : $product->get_name(),
-			'amount' => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() ),
+			'label'  => WC_Stripe_Helper::is_wc_lt('3.0') ? $product->name : $product->get_name(),
+			'amount' => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price()),
 		);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 		}
 
-		if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+		if (wc_shipping_enabled() && $product->needs_shipping()) {
 			$items[] = array(
-				'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 
 			$data['shippingOptions'] = array(
 				'id'     => 'pending',
-				'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+				'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 				'detail' => '',
 				'amount' => 0,
 			);
@@ -281,41 +281,41 @@ 
 
 		$data['displayItems'] = $items;
 		$data['total']        = array(
-			'label'   => apply_filters( 'wc_stripe_payment_request_total_label', $this->total_label ),
-			'amount'  => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() ),
+			'label'   => apply_filters('wc_stripe_payment_request_total_label', $this->total_label),
+			'amount'  => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price()),
 			'pending' => true,
 		);
 
-		$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-		$data['currency']        = strtolower( get_woocommerce_currency() );
-		$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+		$data['currency']        = strtolower(get_woocommerce_currency());
+		$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		return apply_filters( 'wc_stripe_payment_request_product_data', $data, $product );
+		return apply_filters('wc_stripe_payment_request_product_data', $data, $product);
 	}
 
 	/**
 	 * Filters the gateway title to reflect Payment Request type
 	 *
 	 */
-	public function filter_gateway_title( $title, $id ) {
+	public function filter_gateway_title($title, $id) {
 		global $post;
 
-		if ( ! is_object( $post ) ) {
+		if ( ! is_object($post)) {
 			return $title;
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			$method_title = get_post_meta( $post->ID, '_payment_method_title', true );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			$method_title = get_post_meta($post->ID, '_payment_method_title', true);
 		} else {
-			$order        = wc_get_order( $post->ID );
-			$method_title = is_object( $order ) ? $order->get_payment_method_title() : '';
+			$order        = wc_get_order($post->ID);
+			$method_title = is_object($order) ? $order->get_payment_method_title() : '';
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Apple Pay (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Apple Pay (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Chrome Payment Request (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Chrome Payment Request (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
@@ -328,16 +328,16 @@ 
 	 * @since 3.1.4
 	 * @version 4.0.0
 	 */
-	public function postal_code_validation( $valid, $postcode, $country ) {
+	public function postal_code_validation($valid, $postcode, $country) {
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return $valid;
 		}
 
-		$payment_request_type = isset( $_POST['payment_request_type'] ) ? wc_clean( $_POST['payment_request_type'] ) : '';
+		$payment_request_type = isset($_POST['payment_request_type']) ? wc_clean($_POST['payment_request_type']) : '';
 
-		if ( 'apple_pay' !== $payment_request_type ) {
+		if ('apple_pay' !== $payment_request_type) {
 			return $valid;
 		}
 
@@ -347,7 +347,7 @@ 
 		 * the order and not let it go through. The remedy for now is just to remove this validation.
 		 * Note that this only works with shipping providers that don't validate full postal codes.
 		 */
-		if ( 'GB' === $country || 'CA' === $country ) {
+		if ('GB' === $country || 'CA' === $country) {
 			return true;
 		}
 
@@ -362,29 +362,29 @@ 
 	 * @param int $order_id
 	 * @param array $posted_data The posted data from checkout form.
 	 */
-	public function add_order_meta( $order_id, $posted_data ) {
-		if ( empty( $_POST['payment_request_type'] ) ) {
+	public function add_order_meta($order_id, $posted_data) {
+		if (empty($_POST['payment_request_type'])) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$payment_request_type = wc_clean( $_POST['payment_request_type'] );
+		$payment_request_type = wc_clean($_POST['payment_request_type']);
 
-		if ( 'apple_pay' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Apple Pay (Stripe)' );
+		if ('apple_pay' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				update_post_meta($order_id, '_payment_method_title', 'Apple Pay (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Apple Pay (Stripe)' );
+				$order->set_payment_method_title('Apple Pay (Stripe)');
 				$order->save();
 			}
 		}
 
-		if ( 'payment_request_api' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)' );
+		if ('payment_request_api' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				update_post_meta($order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Chrome Payment Request (Stripe)' );
+				$order->set_payment_method_title('Chrome Payment Request (Stripe)');
 				$order->save();
 			}
 		}
@@ -421,15 +421,15 @@ 
 	 * @return bool
 	 */
 	public function allowed_items_in_cart() {
-		foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
-			$_product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
+		foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
+			$_product = apply_filters('woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key);
 
-			if ( ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $_product->product_type : $_product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $_product->product_type : $_product->get_type()), $this->supported_product_types())) {
 				return false;
 			}
 
 			// Pre Orders compatbility where we don't support charge upon release.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release( WC_Pre_Orders_Cart::get_pre_order_product() ) ) {
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release(WC_Pre_Orders_Cart::get_pre_order_product())) {
 				return false;
 			}
 		}
@@ -445,80 +445,80 @@ 
 	 */
 	public function scripts() {
 		// If keys are not set bail.
-		if ( ! $this->are_keys_set() ) {
-			WC_Stripe_Logger::log( 'Keys are not set correctly.' );
+		if ( ! $this->are_keys_set()) {
+			WC_Stripe_Logger::log('Keys are not set correctly.');
 			return;
 		}
 
 		// If no SSL bail.
-		if ( ! $this->testmode && ! is_ssl() ) {
-			WC_Stripe_Logger::log( 'Stripe Payment Request live mode requires SSL.' );
+		if ( ! $this->testmode && ! is_ssl()) {
+			WC_Stripe_Logger::log('Stripe Payment Request live mode requires SSL.');
 			return;
 		}
 
-		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() ) {
+		if (is_product()) {
 			global $post;
 
-			$product = wc_get_product( $post->ID );
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
-			if ( apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+			if (apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 				return;
 			}
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
 		$stripe_params = array(
-			'ajax_url'        => WC_AJAX::get_endpoint( '%%endpoint%%' ),
+			'ajax_url'        => WC_AJAX::get_endpoint('%%endpoint%%'),
 			'stripe'          => array(
 				'key'                => $this->publishable_key,
-				'allow_prepaid_card' => apply_filters( 'wc_stripe_allow_prepaid_card', true ) ? 'yes' : 'no',
+				'allow_prepaid_card' => apply_filters('wc_stripe_allow_prepaid_card', true) ? 'yes' : 'no',
 			),
 			'nonce'           => array(
-				'payment'                   => wp_create_nonce( 'wc-stripe-payment-request' ),
-				'shipping'                  => wp_create_nonce( 'wc-stripe-payment-request-shipping' ),
-				'update_shipping'           => wp_create_nonce( 'wc-stripe-update-shipping-method' ),
-				'checkout'                  => wp_create_nonce( 'woocommerce-process_checkout' ),
-				'add_to_cart'               => wp_create_nonce( 'wc-stripe-add-to-cart' ),
-				'get_selected_product_data' => wp_create_nonce( 'wc-stripe-get-selected-product-data' ),
-				'log_errors'                => wp_create_nonce( 'wc-stripe-log-errors' ),
-				'clear_cart'                => wp_create_nonce( 'wc-stripe-clear-cart' ),
+				'payment'                   => wp_create_nonce('wc-stripe-payment-request'),
+				'shipping'                  => wp_create_nonce('wc-stripe-payment-request-shipping'),
+				'update_shipping'           => wp_create_nonce('wc-stripe-update-shipping-method'),
+				'checkout'                  => wp_create_nonce('woocommerce-process_checkout'),
+				'add_to_cart'               => wp_create_nonce('wc-stripe-add-to-cart'),
+				'get_selected_product_data' => wp_create_nonce('wc-stripe-get-selected-product-data'),
+				'log_errors'                => wp_create_nonce('wc-stripe-log-errors'),
+				'clear_cart'                => wp_create_nonce('wc-stripe-clear-cart'),
 			),
 			'i18n'            => array(
-				'no_prepaid_card'  => __( 'Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe' ),
+				'no_prepaid_card'  => __('Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe'),
 				/* translators: Do not translate the [option] placeholder */
-				'unknown_shipping' => __( 'Unknown shipping option "[option]".', 'woocommerce-gateway-stripe' ),
+				'unknown_shipping' => __('Unknown shipping option "[option]".', 'woocommerce-gateway-stripe'),
 			),
 			'checkout'        => array(
 				'url'            => wc_get_checkout_url(),
-				'currency_code'  => strtolower( get_woocommerce_currency() ),
-				'country_code'   => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+				'currency_code'  => strtolower(get_woocommerce_currency()),
+				'country_code'   => substr(get_option('woocommerce_default_country'), 0, 2),
 				'needs_shipping' => WC()->cart->needs_shipping() ? 'yes' : 'no',
 			),
 			'button'          => array(
 				'type'   => $this->get_button_type(),
 				'theme'  => $this->get_button_theme(),
 				'height' => $this->get_button_height(),
-				'locale' => apply_filters( 'wc_stripe_payment_request_button_locale', substr( get_locale(), 0, 2 ) ), // Default format is en_US.
+				'locale' => apply_filters('wc_stripe_payment_request_button_locale', substr(get_locale(), 0, 2)), // Default format is en_US.
 			),
 			'is_product_page' => is_product(),
 			'product'         => $this->get_product_data(),
 		);
 
-		wp_register_script( 'stripe', 'https://js.stripe.com/v3/', '', '3.0', true );
-		wp_register_script( 'wc_stripe_payment_request', plugins_url( 'assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'jquery', 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_register_script('stripe', 'https://js.stripe.com/v3/', '', '3.0', true);
+		wp_register_script('wc_stripe_payment_request', plugins_url('assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('jquery', 'stripe'), WC_STRIPE_VERSION, true);
 
-		wp_localize_script( 'wc_stripe_payment_request', 'wc_stripe_payment_request_params', apply_filters( 'wc_stripe_payment_request_params', $stripe_params ) );
+		wp_localize_script('wc_stripe_payment_request', 'wc_stripe_payment_request_params', apply_filters('wc_stripe_payment_request_params', $stripe_params));
 
-		wp_enqueue_script( 'wc_stripe_payment_request' );
+		wp_enqueue_script('wc_stripe_payment_request');
 	}
 
 	/**
@@ -532,37 +532,37 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() && apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+		if (is_product() && apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() ) {
-			$product = wc_get_product( $post->ID );
+		if (is_product()) {
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
 			// Pre Orders charge upon release not supported.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Product::product_is_charged_upon_release( $product ) ) {
-				WC_Stripe_Logger::log( 'Pre Order charge upon release is not supported. ( Payment Request button disabled )' );
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Product::product_is_charged_upon_release($product)) {
+				WC_Stripe_Logger::log('Pre Order charge upon release is not supported. ( Payment Request button disabled )');
 				return;
 			}
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
@@ -586,42 +586,42 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() && apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+		if (is_product() && apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() ) {
-			$product = wc_get_product( $post->ID );
+		if (is_product()) {
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
 			// Pre Orders charge upon release not supported.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Product::product_is_charged_upon_release( $product ) ) {
-				WC_Stripe_Logger::log( 'Pre Order charge upon release is not supported. ( Payment Request button disabled )' );
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Product::product_is_charged_upon_release($product)) {
+				WC_Stripe_Logger::log('Pre Order charge upon release is not supported. ( Payment Request button disabled )');
 				return;
 			}
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
 		?>
-		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e( 'OR', 'woocommerce-gateway-stripe' ); ?> &mdash;</p>
+		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e('OR', 'woocommerce-gateway-stripe'); ?> &mdash;</p>
 		<?php
 	}
 
@@ -632,11 +632,11 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_log_errors() {
-		check_ajax_referer( 'wc-stripe-log-errors', 'security' );
+		check_ajax_referer('wc-stripe-log-errors', 'security');
 
-		$errors = wc_clean( stripslashes( $_POST['errors'] ) );
+		$errors = wc_clean(stripslashes($_POST['errors']));
 
-		WC_Stripe_Logger::log( $errors );
+		WC_Stripe_Logger::log($errors);
 
 		exit;
 	}
@@ -648,7 +648,7 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_clear_cart() {
-		check_ajax_referer( 'wc-stripe-clear-cart', 'security' );
+		check_ajax_referer('wc-stripe-clear-cart', 'security');
 
 		WC()->cart->empty_cart();
 		exit;
@@ -658,10 +658,10 @@ 
 	 * Get cart details.
 	 */
 	public function ajax_get_cart_details() {
-		check_ajax_referer( 'wc-stripe-payment-request', 'security' );
+		check_ajax_referer('wc-stripe-payment-request', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->cart->calculate_totals();
@@ -672,14 +672,14 @@ 
 		$data = array(
 			'shipping_required' => WC()->cart->needs_shipping(),
 			'order_data'        => array(
-				'currency'     => strtolower( $currency ),
-				'country_code' => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+				'currency'     => strtolower($currency),
+				'country_code' => substr(get_option('woocommerce_default_country'), 0, 2),
 			),
 		);
 
 		$data['order_data'] += $this->build_display_items();
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -690,7 +690,7 @@ 
 	 * @see WC_Shipping::get_packages().
 	 */
 	public function ajax_get_shipping_options() {
-		check_ajax_referer( 'wc-stripe-payment-request-shipping', 'security' );
+		check_ajax_referer('wc-stripe-payment-request-shipping', 'security');
 
 		try {
 			// Set the shipping package.
@@ -706,34 +706,34 @@ 
 				)
 			);
 
-			$this->calculate_shipping( apply_filters( 'wc_stripe_payment_request_shipping_posted_values', $posted ) );
+			$this->calculate_shipping(apply_filters('wc_stripe_payment_request_shipping_posted_values', $posted));
 
 			// Set the shipping options.
 			$data     = array();
 			$packages = WC()->shipping->get_packages();
 
-			if ( ! empty( $packages ) && WC()->customer->has_calculated_shipping() ) {
-				foreach ( $packages as $package_key => $package ) {
-					if ( empty( $package['rates'] ) ) {
-						throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+			if ( ! empty($packages) && WC()->customer->has_calculated_shipping()) {
+				foreach ($packages as $package_key => $package) {
+					if (empty($package['rates'])) {
+						throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 					}
 
-					foreach ( $package['rates'] as $key => $rate ) {
+					foreach ($package['rates'] as $key => $rate) {
 						$data['shipping_options'][] = array(
 							'id'     => $rate->id,
 							'label'  => $rate->label,
 							'detail' => '',
-							'amount' => WC_Stripe_Helper::get_stripe_amount( $rate->cost ),
+							'amount' => WC_Stripe_Helper::get_stripe_amount($rate->cost),
 						);
 					}
 				}
 			} else {
-				throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+				throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 			}
 
-			if ( isset( $data[0] ) ) {
+			if (isset($data[0])) {
 				// Auto select the first shipping method.
-				WC()->session->set( 'chosen_shipping_methods', array( $data[0]['id'] ) );
+				WC()->session->set('chosen_shipping_methods', array($data[0]['id']));
 			}
 
 			WC()->cart->calculate_totals();
@@ -741,12 +741,12 @@ 
 			$data          += $this->build_display_items();
 			$data['result'] = 'success';
 
-			wp_send_json( $data );
-		} catch ( Exception $e ) {
+			wp_send_json($data);
+		} catch (Exception $e) {
 			$data          += $this->build_display_items();
 			$data['result'] = 'invalid_shipping_address';
 
-			wp_send_json( $data );
+			wp_send_json($data);
 		}
 	}
 
@@ -754,22 +754,22 @@ 
 	 * Update shipping method.
 	 */
 	public function ajax_update_shipping_method() {
-		check_ajax_referer( 'wc-stripe-update-shipping-method', 'security' );
+		check_ajax_referer('wc-stripe-update-shipping-method', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
-		$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );
-		$shipping_method         = filter_input( INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY );
+		$chosen_shipping_methods = WC()->session->get('chosen_shipping_methods');
+		$shipping_method         = filter_input(INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
 
-		if ( is_array( $shipping_method ) ) {
-			foreach ( $shipping_method as $i => $value ) {
-				$chosen_shipping_methods[ $i ] = wc_clean( $value );
+		if (is_array($shipping_method)) {
+			foreach ($shipping_method as $i => $value) {
+				$chosen_shipping_methods[$i] = wc_clean($value);
 			}
 		}
 
-		WC()->session->set( 'chosen_shipping_methods', $chosen_shipping_methods );
+		WC()->session->set('chosen_shipping_methods', $chosen_shipping_methods);
 
 		WC()->cart->calculate_totals();
 
@@ -777,7 +777,7 @@ 
 		$data          += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -788,46 +788,46 @@ 
 	 * @return array $data
 	 */
 	public function ajax_get_selected_product_data() {
-		check_ajax_referer( 'wc-stripe-get-selected-product-data', 'security' );
+		check_ajax_referer('wc-stripe-get-selected-product-data', 'security');
 
 		try {
-			$product_id   = absint( $_POST['product_id'] );
-			$qty          = ! isset( $_POST['qty'] ) ? 1 : apply_filters( 'woocommerce_add_to_cart_quantity', absint( $_POST['qty'] ), $product_id );
-			$product      = wc_get_product( $product_id );
+			$product_id   = absint($_POST['product_id']);
+			$qty          = ! isset($_POST['qty']) ? 1 : apply_filters('woocommerce_add_to_cart_quantity', absint($_POST['qty']), $product_id);
+			$product      = wc_get_product($product_id);
 			$variation_id = null;
 
-			if ( ! is_a( $product, 'WC_Product' ) ) {
-				throw new Exception( sprintf( __( 'Product with the ID (%d) cannot be found.', 'woocommerce-gateway-stripe' ), $product_id ) );
+			if ( ! is_a($product, 'WC_Product')) {
+				throw new Exception(sprintf(__('Product with the ID (%d) cannot be found.', 'woocommerce-gateway-stripe'), $product_id));
 			}
 
-			if ( 'variable' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-				$attributes = array_map( 'wc_clean', $_POST['attributes'] );
+			if ('variable' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+				$attributes = array_map('wc_clean', $_POST['attributes']);
 
-				if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-					$variation_id = $product->get_matching_variation( $attributes );
+				if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+					$variation_id = $product->get_matching_variation($attributes);
 				} else {
-					$data_store   = WC_Data_Store::load( 'product' );
-					$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+					$data_store   = WC_Data_Store::load('product');
+					$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 				}
 
-				if ( ! empty( $variation_id ) ) {
-					$product = wc_get_product( $variation_id );
+				if ( ! empty($variation_id)) {
+					$product = wc_get_product($variation_id);
 				}
-			} elseif ( 'simple' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) ) {
-				$product = wc_get_product( $product_id );
+			} elseif ('simple' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type())) {
+				$product = wc_get_product($product_id);
 			}
 
 			// Force quantity to 1 if sold individually and check for existing item in cart.
-			if ( $product->is_sold_individually() ) {
-				$qty = apply_filters( 'wc_stripe_payment_request_add_to_cart_sold_individually_quantity', 1, $qty, $product_id, $variation_id );
+			if ($product->is_sold_individually()) {
+				$qty = apply_filters('wc_stripe_payment_request_add_to_cart_sold_individually_quantity', 1, $qty, $product_id, $variation_id);
 			}
 
-			if ( ! $product->has_enough_stock( $qty ) ) {
+			if ( ! $product->has_enough_stock($qty)) {
 				/* translators: 1: product name 2: quantity in stock */
-				throw new Exception( sprintf( __( 'You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-gateway-stripe' ), $product->get_name(), wc_format_stock_quantity_for_display( $product->get_stock_quantity(), $product ) ) );
+				throw new Exception(sprintf(__('You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-gateway-stripe'), $product->get_name(), wc_format_stock_quantity_for_display($product->get_stock_quantity(), $product)));
 			}
 
-			$total = $qty * ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() );
+			$total = $qty * (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price());
 
 			$quantity_label = 1 < $qty ? ' (x' . $qty . ')' : '';
 
@@ -835,28 +835,28 @@ 
 			$items = array();
 
 			$items[] = array(
-				'label'  => ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->name : $product->get_name() ) . $quantity_label,
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $total ),
+				'label'  => (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->name : $product->get_name()) . $quantity_label,
+				'amount' => WC_Stripe_Helper::get_stripe_amount($total),
 			);
 
-			if ( wc_tax_enabled() ) {
+			if (wc_tax_enabled()) {
 				$items[] = array(
-					'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+					'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 					'amount'  => 0,
 					'pending' => true,
 				);
 			}
 
-			if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+			if (wc_shipping_enabled() && $product->needs_shipping()) {
 				$items[] = array(
-					'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+					'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 					'amount'  => 0,
 					'pending' => true,
 				);
 
 				$data['shippingOptions'] = array(
 					'id'     => 'pending',
-					'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+					'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 					'detail' => '',
 					'amount' => 0,
 				);
@@ -865,17 +865,17 @@ 
 			$data['displayItems'] = $items;
 			$data['total']        = array(
 				'label'   => $this->total_label,
-				'amount'  => WC_Stripe_Helper::get_stripe_amount( $total ),
+				'amount'  => WC_Stripe_Helper::get_stripe_amount($total),
 				'pending' => true,
 			);
 
-			$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-			$data['currency']        = strtolower( get_woocommerce_currency() );
-			$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+			$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+			$data['currency']        = strtolower(get_woocommerce_currency());
+			$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-			wp_send_json( $data );
-		} catch ( Exception $e ) {
-			wp_send_json( array( 'error' => wp_strip_all_tags( $e->getMessage() ) ) );
+			wp_send_json($data);
+		} catch (Exception $e) {
+			wp_send_json(array('error' => wp_strip_all_tags($e->getMessage())));
 		}
 	}
 
@@ -887,36 +887,36 @@ 
 	 * @return array $data
 	 */
 	public function ajax_add_to_cart() {
-		check_ajax_referer( 'wc-stripe-add-to-cart', 'security' );
+		check_ajax_referer('wc-stripe-add-to-cart', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		$product_id = absint( $_POST['product_id'] );
-		$qty        = ! isset( $_POST['qty'] ) ? 1 : absint( $_POST['qty'] );
-		$product    = wc_get_product( $product_id );
+		$product_id = absint($_POST['product_id']);
+		$qty        = ! isset($_POST['qty']) ? 1 : absint($_POST['qty']);
+		$product    = wc_get_product($product_id);
 
 		// First empty the cart to prevent wrong calculation.
 		WC()->cart->empty_cart();
 
-		if ( 'variable' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-			$attributes = array_map( 'wc_clean', $_POST['attributes'] );
+		if ('variable' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+			$attributes = array_map('wc_clean', $_POST['attributes']);
 
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				$variation_id = $product->get_matching_variation( $attributes );
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				$variation_id = $product->get_matching_variation($attributes);
 			} else {
-				$data_store   = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+				$data_store   = WC_Data_Store::load('product');
+				$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 			}
 
-			WC()->cart->add_to_cart( $product->get_id(), $qty, $variation_id, $attributes );
+			WC()->cart->add_to_cart($product->get_id(), $qty, $variation_id, $attributes);
 		}
 
-		if ( 'simple' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) ) {
-			WC()->cart->add_to_cart( $product->get_id(), $qty );
+		if ('simple' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type())) {
+			WC()->cart->add_to_cart($product->get_id(), $qty);
 		}
 
 		WC()->cart->calculate_totals();
@@ -925,7 +925,7 @@ 
 		$data          += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -938,31 +938,31 @@ 
 	 * @version 4.0.0
 	 */
 	public function normalize_state() {
-		$billing_country  = ! empty( $_POST['billing_country'] ) ? wc_clean( $_POST['billing_country'] ) : '';
-		$shipping_country = ! empty( $_POST['shipping_country'] ) ? wc_clean( $_POST['shipping_country'] ) : '';
-		$billing_state    = ! empty( $_POST['billing_state'] ) ? wc_clean( $_POST['billing_state'] ) : '';
-		$shipping_state   = ! empty( $_POST['shipping_state'] ) ? wc_clean( $_POST['shipping_state'] ) : '';
+		$billing_country  = ! empty($_POST['billing_country']) ? wc_clean($_POST['billing_country']) : '';
+		$shipping_country = ! empty($_POST['shipping_country']) ? wc_clean($_POST['shipping_country']) : '';
+		$billing_state    = ! empty($_POST['billing_state']) ? wc_clean($_POST['billing_state']) : '';
+		$shipping_state   = ! empty($_POST['shipping_state']) ? wc_clean($_POST['shipping_state']) : '';
 
-		if ( $billing_state && $billing_country ) {
-			$valid_states = WC()->countries->get_states( $billing_country );
+		if ($billing_state && $billing_country) {
+			$valid_states = WC()->countries->get_states($billing_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $billing_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $billing_state)) {
 						$_POST['billing_state'] = $state_abbr;
 					}
 				}
 			}
 		}
 
-		if ( $shipping_state && $shipping_country ) {
-			$valid_states = WC()->countries->get_states( $shipping_country );
+		if ($shipping_state && $shipping_country) {
+			$valid_states = WC()->countries->get_states($shipping_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $shipping_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $shipping_state)) {
 						$_POST['shipping_state'] = $state_abbr;
 					}
 				}
@@ -977,19 +977,19 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_create_order() {
-		if ( WC()->cart->is_empty() ) {
-			wp_send_json_error( __( 'Empty cart', 'woocommerce-gateway-stripe' ) );
+		if (WC()->cart->is_empty()) {
+			wp_send_json_error(__('Empty cart', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( ! defined( 'WOOCOMMERCE_CHECKOUT' ) ) {
-			define( 'WOOCOMMERCE_CHECKOUT', true );
+		if ( ! defined('WOOCOMMERCE_CHECKOUT')) {
+			define('WOOCOMMERCE_CHECKOUT', true);
 		}
 
 		$this->normalize_state();
 
 		WC()->checkout()->process_checkout();
 
-		die( 0 );
+		die(0);
 	}
 
 	/**
@@ -999,41 +999,41 @@ 
 	 * @version 4.0.0
 	 * @param array $address
 	 */
-	protected function calculate_shipping( $address = array() ) {
+	protected function calculate_shipping($address = array()) {
 		$country   = $address['country'];
 		$state     = $address['state'];
 		$postcode  = $address['postcode'];
 		$city      = $address['city'];
 		$address_1 = $address['address'];
 		$address_2 = $address['address_2'];
-		$wc_states = WC()->countries->get_states( $country );
+		$wc_states = WC()->countries->get_states($country);
 
 		/**
 		 * In some versions of Chrome, state can be a full name. So we need
 		 * to convert that to abbreviation as WC is expecting that.
 		 */
-		if ( 2 < strlen( $state ) && ! empty( $wc_states ) ) {
-			$state = array_search( ucwords( strtolower( $state ) ), $wc_states, true );
+		if (2 < strlen($state) && ! empty($wc_states)) {
+			$state = array_search(ucwords(strtolower($state)), $wc_states, true);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		if ( $postcode && WC_Validation::is_postcode( $postcode, $country ) ) {
-			$postcode = wc_format_postcode( $postcode, $country );
+		if ($postcode && WC_Validation::is_postcode($postcode, $country)) {
+			$postcode = wc_format_postcode($postcode, $country);
 		}
 
-		if ( $country ) {
-			WC()->customer->set_location( $country, $state, $postcode, $city );
-			WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
+		if ($country) {
+			WC()->customer->set_location($country, $state, $postcode, $city);
+			WC()->customer->set_shipping_location($country, $state, $postcode, $city);
 		} else {
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? WC()->customer->set_to_base() : WC()->customer->set_billing_address_to_base();
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? WC()->customer->set_shipping_to_base() : WC()->customer->set_shipping_address_to_base();
+			WC_Stripe_Helper::is_wc_lt('3.0') ? WC()->customer->set_to_base() : WC()->customer->set_billing_address_to_base();
+			WC_Stripe_Helper::is_wc_lt('3.0') ? WC()->customer->set_shipping_to_base() : WC()->customer->set_shipping_address_to_base();
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			WC()->customer->calculated_shipping( true );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			WC()->customer->calculated_shipping(true);
 		} else {
-			WC()->customer->set_calculated_shipping( true );
+			WC()->customer->set_calculated_shipping(true);
 			WC()->customer->save();
 		}
 
@@ -1050,17 +1050,17 @@ 
 		$packages[0]['destination']['address']   = $address_1;
 		$packages[0]['destination']['address_2'] = $address_2;
 
-		foreach ( WC()->cart->get_cart() as $item ) {
-			if ( $item['data']->needs_shipping() ) {
-				if ( isset( $item['line_total'] ) ) {
+		foreach (WC()->cart->get_cart() as $item) {
+			if ($item['data']->needs_shipping()) {
+				if (isset($item['line_total'])) {
 					$packages[0]['contents_cost'] += $item['line_total'];
 				}
 			}
 		}
 
-		$packages = apply_filters( 'woocommerce_cart_shipping_packages', $packages );
+		$packages = apply_filters('woocommerce_cart_shipping_packages', $packages);
 
-		WC()->shipping->calculate_shipping( $packages );
+		WC()->shipping->calculate_shipping($packages);
 	}
 
 	/**
@@ -1069,19 +1069,19 @@ 
 	 * @since 3.1.0
 	 * @version 4.0.0
 	 */
-	protected function build_shipping_methods( $shipping_methods ) {
-		if ( empty( $shipping_methods ) ) {
+	protected function build_shipping_methods($shipping_methods) {
+		if (empty($shipping_methods)) {
 			return array();
 		}
 
 		$shipping = array();
 
-		foreach ( $shipping_methods as $method ) {
+		foreach ($shipping_methods as $method) {
 			$shipping[] = array(
 				'id'     => $method['id'],
 				'label'  => $method['label'],
 				'detail' => '',
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $method['amount']['value'] ),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($method['amount']['value']),
 			);
 		}
 
@@ -1095,8 +1095,8 @@ 
 	 * @version 4.0.0
 	 */
 	protected function build_display_items() {
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		$items     = array();
@@ -1104,71 +1104,71 @@ 
 		$discounts = 0;
 
 		// Default show only subtotal instead of itemization.
-		if ( ! apply_filters( 'wc_stripe_payment_request_hide_itemization', true ) ) {
-			foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
+		if ( ! apply_filters('wc_stripe_payment_request_hide_itemization', true)) {
+			foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
 				$amount         = $cart_item['line_subtotal'];
 				$subtotal      += $cart_item['line_subtotal'];
 				$quantity_label = 1 < $cart_item['quantity'] ? ' (x' . $cart_item['quantity'] . ')' : '';
 
-				$product_name = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $cart_item['data']->post->post_title : $cart_item['data']->get_name();
+				$product_name = WC_Stripe_Helper::is_wc_lt('3.0') ? $cart_item['data']->post->post_title : $cart_item['data']->get_name();
 
 				$item = array(
 					'label'  => $product_name . $quantity_label,
-					'amount' => WC_Stripe_Helper::get_stripe_amount( $amount ),
+					'amount' => WC_Stripe_Helper::get_stripe_amount($amount),
 				);
 
 				$items[] = $item;
 			}
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
-			$discounts = wc_format_decimal( WC()->cart->get_cart_discount_total(), WC()->cart->dp );
+		if (version_compare(WC_VERSION, '3.2', '<')) {
+			$discounts = wc_format_decimal(WC()->cart->get_cart_discount_total(), WC()->cart->dp);
 		} else {
-			$applied_coupons = array_values( WC()->cart->get_coupon_discount_totals() );
+			$applied_coupons = array_values(WC()->cart->get_coupon_discount_totals());
 
-			foreach ( $applied_coupons as $amount ) {
+			foreach ($applied_coupons as $amount) {
 				$discounts += (float) $amount;
 			}
 		}
 
-		$discounts   = wc_format_decimal( $discounts, WC()->cart->dp );
-		$tax         = wc_format_decimal( WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp );
-		$shipping    = wc_format_decimal( WC()->cart->shipping_total, WC()->cart->dp );
-		$items_total = wc_format_decimal( WC()->cart->cart_contents_total, WC()->cart->dp ) + $discounts;
-		$order_total = version_compare( WC_VERSION, '3.2', '<' ) ? wc_format_decimal( $items_total + $tax + $shipping - $discounts, WC()->cart->dp ) : WC()->cart->get_total( false );
+		$discounts   = wc_format_decimal($discounts, WC()->cart->dp);
+		$tax         = wc_format_decimal(WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp);
+		$shipping    = wc_format_decimal(WC()->cart->shipping_total, WC()->cart->dp);
+		$items_total = wc_format_decimal(WC()->cart->cart_contents_total, WC()->cart->dp) + $discounts;
+		$order_total = version_compare(WC_VERSION, '3.2', '<') ? wc_format_decimal($items_total + $tax + $shipping - $discounts, WC()->cart->dp) : WC()->cart->get_total(false);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Tax', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $tax ),
+				'label'  => esc_html(__('Tax', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($tax),
 			);
 		}
 
-		if ( WC()->cart->needs_shipping() ) {
+		if (WC()->cart->needs_shipping()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Shipping', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $shipping ),
+				'label'  => esc_html(__('Shipping', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($shipping),
 			);
 		}
 
-		if ( WC()->cart->has_discount() ) {
+		if (WC()->cart->has_discount()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Discount', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $discounts ),
+				'label'  => esc_html(__('Discount', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($discounts),
 			);
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
+		if (version_compare(WC_VERSION, '3.2', '<')) {
 			$cart_fees = WC()->cart->fees;
 		} else {
 			$cart_fees = WC()->cart->get_fees();
 		}
 
 		// Include fees and taxes as display items.
-		foreach ( $cart_fees as $key => $fee ) {
+		foreach ($cart_fees as $key => $fee) {
 			$items[] = array(
 				'label'  => $fee->name,
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $fee->amount ),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($fee->amount),
 			);
 		}
 
@@ -1176,7 +1176,7 @@ 
 			'displayItems' => $items,
 			'total'        => array(
 				'label'   => $this->total_label,
-				'amount'  => max( 0, apply_filters( 'woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount( $order_total ), $order_total, WC()->cart ) ),
+				'amount'  => max(0, apply_filters('woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount($order_total), $order_total, WC()->cart)),
 				'pending' => false,
 			),
 		);