woocommerce / woocommerce-gateway-stripe

includes/class-wc-stripe-webhook-handler.php

Spacing +260 added lines, -260 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -39,12 +39,12 @@ 
 	 */
 	public function __construct() {
 		$this->retry_interval = 2;
-		$stripe_settings      = get_option( 'woocommerce_stripe_settings', array() );
-		$this->testmode       = ( ! empty( $stripe_settings['testmode'] ) && 'yes' === $stripe_settings['testmode'] ) ? true : false;
-		$secret_key           = ( $this->testmode ? 'test_' : '' ) . 'webhook_secret';
-		$this->secret         = ! empty( $stripe_settings[ $secret_key ] ) ? $stripe_settings[ $secret_key ] : false;
+		$stripe_settings      = get_option('woocommerce_stripe_settings', array());
+		$this->testmode       = ( ! empty($stripe_settings['testmode']) && 'yes' === $stripe_settings['testmode']) ? true : false;
+		$secret_key           = ($this->testmode ? 'test_' : '') . 'webhook_secret';
+		$this->secret         = ! empty($stripe_settings[$secret_key]) ? $stripe_settings[$secret_key] : false;
 
-		add_action( 'woocommerce_api_wc_stripe', array( $this, 'check_for_webhook' ) );
+		add_action('woocommerce_api_wc_stripe', array($this, 'check_for_webhook'));
 	}
 
 	/**
@@ -54,24 +54,24 @@ 
 	 * @version 4.0.0
 	 */
 	public function check_for_webhook() {
-		if ( ( 'POST' !== $_SERVER['REQUEST_METHOD'] )
-			|| ! isset( $_GET['wc-api'] )
-			|| ( 'wc_stripe' !== $_GET['wc-api'] )
+		if (('POST' !== $_SERVER['REQUEST_METHOD'])
+			|| ! isset($_GET['wc-api'])
+			|| ('wc_stripe' !== $_GET['wc-api'])
 		) {
 			return;
 		}
 
-		$request_body    = file_get_contents( 'php://input' );
-		$request_headers = array_change_key_case( $this->get_request_headers(), CASE_UPPER );
+		$request_body    = file_get_contents('php://input');
+		$request_headers = array_change_key_case($this->get_request_headers(), CASE_UPPER);
 
 		// Validate it to make sure it is legit.
-		if ( $this->is_valid_request( $request_headers, $request_body ) ) {
-			$this->process_webhook( $request_body );
-			status_header( 200 );
+		if ($this->is_valid_request($request_headers, $request_body)) {
+			$this->process_webhook($request_body);
+			status_header(200);
 			exit;
 		} else {
-			WC_Stripe_Logger::log( 'Incoming webhook failed validation: ' . print_r( $request_body, true ) );
-			status_header( 400 );
+			WC_Stripe_Logger::log('Incoming webhook failed validation: ' . print_r($request_body, true));
+			status_header(400);
 			exit;
 		}
 	}
@@ -85,34 +85,34 @@ 
 	 * @param string $request_body The request body from Stripe.
 	 * @return bool
 	 */
-	public function is_valid_request( $request_headers = null, $request_body = null ) {
-		if ( null === $request_headers || null === $request_body ) {
+	public function is_valid_request($request_headers = null, $request_body = null) {
+		if (null === $request_headers || null === $request_body) {
 			return false;
 		}
 
-		if ( ! empty( $request_headers['USER-AGENT'] ) && ! preg_match( '/Stripe/', $request_headers['USER-AGENT'] ) ) {
+		if ( ! empty($request_headers['USER-AGENT']) && ! preg_match('/Stripe/', $request_headers['USER-AGENT'])) {
 			return false;
 		}
 
-		if ( ! empty( $this->secret ) ) {
+		if ( ! empty($this->secret)) {
 			// Check for a valid signature.
 			$signature_format = '/^t=(?P<timestamp>\d+)(?P<signatures>(,v\d+=[a-z0-9]+){1,2})$/';
-			if ( empty( $request_headers['STRIPE-SIGNATURE'] ) || ! preg_match( $signature_format, $request_headers['STRIPE-SIGNATURE'], $matches ) ) {
+			if (empty($request_headers['STRIPE-SIGNATURE']) || ! preg_match($signature_format, $request_headers['STRIPE-SIGNATURE'], $matches)) {
 				return false;
 			}
 
 			// Verify the timestamp.
-			$timestamp = intval( $matches['timestamp'] );
-			if ( abs( $timestamp - time() ) > 5 * MINUTE_IN_SECONDS ) {
+			$timestamp = intval($matches['timestamp']);
+			if (abs($timestamp - time()) > 5 * MINUTE_IN_SECONDS) {
 				return;
 			}
 
 			// Generate the expected signature.
 			$signed_payload     = $timestamp . '.' . $request_body;
-			$expected_signature = hash_hmac( 'sha256', $signed_payload, $this->secret );
+			$expected_signature = hash_hmac('sha256', $signed_payload, $this->secret);
 
 			// Check if the expected signature is present.
-			if ( ! preg_match( '/,v\d+=' . preg_quote( $expected_signature, '/' ) . '/', $matches['signatures'] ) ) {
+			if ( ! preg_match('/,v\d+=' . preg_quote($expected_signature, '/') . '/', $matches['signatures'])) {
 				return false;
 			}
 		}
@@ -129,12 +129,12 @@ 
 	 * @version 4.0.0
 	 */
 	public function get_request_headers() {
-		if ( ! function_exists( 'getallheaders' ) ) {
+		if ( ! function_exists('getallheaders')) {
 			$headers = array();
 
-			foreach ( $_SERVER as $name => $value ) {
-				if ( 'HTTP_' === substr( $name, 0, 5 ) ) {
-					$headers[ str_replace( ' ', '-', ucwords( strtolower( str_replace( '_', ' ', substr( $name, 5 ) ) ) ) ) ] = $value;
+			foreach ($_SERVER as $name => $value) {
+				if ('HTTP_' === substr($name, 0, 5)) {
+					$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
 				}
 			}
 
@@ -153,30 +153,30 @@ 
 	 * @param object $notification
 	 * @param bool $retry
 	 */
-	public function process_webhook_payment( $notification, $retry = true ) {
+	public function process_webhook_payment($notification, $retry = true) {
 		// The following 3 payment methods are synchronous so does not need to be handle via webhook.
-		if ( 'card' === $notification->data->object->type || 'sepa_debit' === $notification->data->object->type || 'three_d_secure' === $notification->data->object->type ) {
+		if ('card' === $notification->data->object->type || 'sepa_debit' === $notification->data->object->type || 'three_d_secure' === $notification->data->object->type) {
 			return;
 		}
 
-		$order = WC_Stripe_Helper::get_order_by_source_id( $notification->data->object->id );
+		$order = WC_Stripe_Helper::get_order_by_source_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via source ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via source ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id  = $order->get_id();
 		$source_id = $notification->data->object->id;
 
-		$is_pending_receiver = ( 'receiver' === $notification->data->object->flow );
+		$is_pending_receiver = ('receiver' === $notification->data->object->flow);
 
 		try {
-			if ( $order->has_status( array( 'processing', 'completed' ) ) ) {
+			if ($order->has_status(array('processing', 'completed'))) {
 				return;
 			}
 
-			if ( $order->has_status( 'on-hold' ) && ! $is_pending_receiver ) {
+			if ($order->has_status('on-hold') && ! $is_pending_receiver) {
 				return;
 			}
 
@@ -184,89 +184,89 @@ 
 			$response = null;
 
 			// This will throw exception if not valid.
-			$this->validate_minimum_order_amount( $order );
+			$this->validate_minimum_order_amount($order);
 
-			WC_Stripe_Logger::log( "Info: (Webhook) Begin processing payment for order $order_id for the amount of {$order->get_total()}" );
+			WC_Stripe_Logger::log("Info: (Webhook) Begin processing payment for order $order_id for the amount of {$order->get_total()}");
 
 			// Prep source object.
 			$source_object           = new stdClass();
 			$source_object->token_id = '';
-			$source_object->customer = $this->get_stripe_customer_id( $order );
+			$source_object->customer = $this->get_stripe_customer_id($order);
 			$source_object->source   = $source_id;
 
 			// Make the request.
-			$response = WC_Stripe_API::request( $this->generate_payment_request( $order, $source_object ), 'charges', 'POST', true );
+			$response = WC_Stripe_API::request($this->generate_payment_request($order, $source_object), 'charges', 'POST', true);
 			$headers  = $response['headers'];
 			$response = $response['body'];
 
-			if ( ! empty( $response->error ) ) {
+			if ( ! empty($response->error)) {
 				// Customer param wrong? The user may have been deleted on stripe's end. Remove customer_id. Can be retried without.
-				if ( $this->is_no_such_customer_error( $response->error ) ) {
-					delete_user_option( $order->get_customer_id(), '_stripe_customer_id' );
-					$order->delete_meta_data( '_stripe_customer_id' );
+				if ($this->is_no_such_customer_error($response->error)) {
+					delete_user_option($order->get_customer_id(), '_stripe_customer_id');
+					$order->delete_meta_data('_stripe_customer_id');
 					$order->save();
 				}
 
-				if ( $this->is_no_such_token_error( $response->error ) && $prepared_source->token_id ) {
+				if ($this->is_no_such_token_error($response->error) && $prepared_source->token_id) {
 					// Source param wrong? The CARD may have been deleted on stripe's end. Remove token and show message.
-					$wc_token = WC_Payment_Tokens::get( $prepared_source->token_id );
+					$wc_token = WC_Payment_Tokens::get($prepared_source->token_id);
 					$wc_token->delete();
-					$localized_message = __( 'This card is no longer available and has been removed.', 'woocommerce-gateway-stripe' );
-					$order->add_order_note( $localized_message );
-					throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+					$localized_message = __('This card is no longer available and has been removed.', 'woocommerce-gateway-stripe');
+					$order->add_order_note($localized_message);
+					throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 				}
 
 				// We want to retry.
-				if ( $this->is_retryable_error( $response->error ) ) {
-					if ( $retry ) {
+				if ($this->is_retryable_error($response->error)) {
+					if ($retry) {
 						// Don't do anymore retries after this.
-						if ( 5 <= $this->retry_interval ) {
+						if (5 <= $this->retry_interval) {
 
-							return $this->process_webhook_payment( $notification, false );
+							return $this->process_webhook_payment($notification, false);
 						}
 
-						sleep( $this->retry_interval );
+						sleep($this->retry_interval);
 
 						$this->retry_interval++;
-						return $this->process_webhook_payment( $notification, true );
+						return $this->process_webhook_payment($notification, true);
 					} else {
-						$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 );
+						$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);
 					}
 				}
 
 				$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);
 			}
 
 			// To prevent double processing the order on WC side.
-			if ( ! $this->is_original_request( $headers ) ) {
+			if ( ! $this->is_original_request($headers)) {
 				return;
 			}
 
-			do_action( 'wc_gateway_stripe_process_webhook_payment', $response, $order );
+			do_action('wc_gateway_stripe_process_webhook_payment', $response, $order);
 
-			$this->process_response( $response, $order );
+			$this->process_response($response, $order);
 
-		} catch ( WC_Stripe_Exception $e ) {
-			WC_Stripe_Logger::log( 'Error: ' . $e->getMessage() );
+		} catch (WC_Stripe_Exception $e) {
+			WC_Stripe_Logger::log('Error: ' . $e->getMessage());
 
-			do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification, $e );
+			do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification, $e);
 
-			$statuses = array( 'pending', 'failed' );
+			$statuses = array('pending', 'failed');
 
-			if ( $order->has_status( $statuses ) ) {
-				$this->send_failed_order_email( $order_id );
+			if ($order->has_status($statuses)) {
+				$this->send_failed_order_email($order_id);
 			}
 		}
 	}
@@ -279,28 +279,28 @@ 
 	 * @since 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_dispute( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+	public function process_webhook_dispute($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->charge );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->charge);
 			return;
 		}
 
-		$order->update_meta_data( '_stripe_status_before_hold', $order->get_status() );
+		$order->update_meta_data('_stripe_status_before_hold', $order->get_status());
 
 		/* translators: 1) The URL to the order. */
-		$message = sprintf( __( 'A dispute was created for this order. Response is needed. Please go to your <a href="%s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review this dispute.', 'woocommerce-gateway-stripe' ), $this->get_transaction_url( $order ) );
-		if ( ! $order->get_meta( '_stripe_status_final', false ) ) {
-			$order->update_status( 'on-hold', $message );
+		$message = sprintf(__('A dispute was created for this order. Response is needed. Please go to your <a href="%s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review this dispute.', 'woocommerce-gateway-stripe'), $this->get_transaction_url($order));
+		if ( ! $order->get_meta('_stripe_status_final', false)) {
+			$order->update_status('on-hold', $message);
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 
-		do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+		do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 
 		$order_id = $order->get_id();
-		$this->send_failed_order_email( $order_id );
+		$this->send_failed_order_email($order_id);
 	}
 
 	/**
@@ -309,34 +309,34 @@ 
 	 * @since 4.4.1
 	 * @param object $notification
 	 */
-	public function process_webhook_dispute_closed( $notification ) {
-		$order  = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+	public function process_webhook_dispute_closed($notification) {
+		$order  = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 		$status = $notification->data->object->status;
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->charge );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->charge);
 			return;
 		}
 
-		if ( 'lost' === $status ) {
-			$message = __( 'The dispute was lost or accepted.', 'woocommerce-gateway-stripe' );
-		} elseif ( 'won' === $status ) {
-			$message = __( 'The dispute was resolved in your favor.', 'woocommerce-gateway-stripe' );
-		} elseif ( 'warning_closed' === $status ) {
-			$message = __( 'The inquiry or retrieval was closed.', 'woocommerce-gateway-stripe' );
+		if ('lost' === $status) {
+			$message = __('The dispute was lost or accepted.', 'woocommerce-gateway-stripe');
+		} elseif ('won' === $status) {
+			$message = __('The dispute was resolved in your favor.', 'woocommerce-gateway-stripe');
+		} elseif ('warning_closed' === $status) {
+			$message = __('The inquiry or retrieval was closed.', 'woocommerce-gateway-stripe');
 		} else {
 			return;
 		}
 
-		if ( apply_filters( 'wc_stripe_webhook_dispute_change_order_status', true, $order, $notification ) ) {
+		if (apply_filters('wc_stripe_webhook_dispute_change_order_status', true, $order, $notification)) {
 			// Mark final so that order status is not overridden by out-of-sequence events.
-			$order->update_meta_data( '_stripe_status_final', true );
+			$order->update_meta_data('_stripe_status_final', true);
 
 			// Fail order if dispute is lost, or else revert to pre-dispute status.
-			$order_status = 'lost' === $status ? 'failed' : $order->get_meta( '_stripe_status_before_hold', 'processing' );
-			$order->update_status( $order_status, $message );
+			$order_status = 'lost' === $status ? 'failed' : $order->get_meta('_stripe_status_before_hold', 'processing');
+			$order->update_status($order_status, $message);
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 	}
 
@@ -348,43 +348,43 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_capture( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_capture($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
-		if ( 'stripe' === $order->get_payment_method() ) {
+		if ('stripe' === $order->get_payment_method()) {
 			$charge   = $order->get_transaction_id();
-			$captured = $order->get_meta( '_stripe_charge_captured', true );
+			$captured = $order->get_meta('_stripe_charge_captured', true);
 
-			if ( $charge && 'no' === $captured ) {
-				$order->update_meta_data( '_stripe_charge_captured', 'yes' );
+			if ($charge && 'no' === $captured) {
+				$order->update_meta_data('_stripe_charge_captured', 'yes');
 
 				// Store other data such as fees
-				$order->set_transaction_id( $notification->data->object->id );
+				$order->set_transaction_id($notification->data->object->id);
 
-				if ( isset( $notification->data->object->balance_transaction ) ) {
-					$this->update_fees( $order, $notification->data->object->balance_transaction );
+				if (isset($notification->data->object->balance_transaction)) {
+					$this->update_fees($order, $notification->data->object->balance_transaction);
 				}
 
 				// Check and see if capture is partial.
-				if ( $this->is_partial_capture( $notification ) ) {
-					$partial_amount = $this->get_partial_amount_to_charge( $notification );
-					$order->set_total( $partial_amount );
-					$this->update_fees( $order, $notification->data->object->refunds->data[0]->balance_transaction );
+				if ($this->is_partial_capture($notification)) {
+					$partial_amount = $this->get_partial_amount_to_charge($notification);
+					$order->set_total($partial_amount);
+					$this->update_fees($order, $notification->data->object->refunds->data[0]->balance_transaction);
 					/* translators: partial captured amount */
-					$order->add_order_note( sprintf( __( 'This charge was partially captured via Stripe Dashboard in the amount of: %s', 'woocommerce-gateway-stripe' ), $partial_amount ) );
+					$order->add_order_note(sprintf(__('This charge was partially captured via Stripe Dashboard in the amount of: %s', 'woocommerce-gateway-stripe'), $partial_amount));
 				} else {
-					$order->payment_complete( $notification->data->object->id );
+					$order->payment_complete($notification->data->object->id);
 
 					/* translators: transaction id */
-					$order->add_order_note( sprintf( __( 'Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe' ), $notification->data->object->id ) );
+					$order->add_order_note(sprintf(__('Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe'), $notification->data->object->id));
 				}
 
-				if ( is_callable( array( $order, 'save' ) ) ) {
+				if (is_callable(array($order, 'save'))) {
 					$order->save();
 				}
 			}
@@ -399,41 +399,41 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_charge_succeeded( $notification ) {
+	public function process_webhook_charge_succeeded($notification) {
 		// Ignore the notification for charges, created through PaymentIntents.
-		if ( isset( $notification->data->object->payment_intent ) && $notification->data->object->payment_intent ) {
+		if (isset($notification->data->object->payment_intent) && $notification->data->object->payment_intent) {
 			return;
 		}
 
 		// The following payment methods are synchronous so does not need to be handle via webhook.
-		if ( ( isset( $notification->data->object->source->type ) && 'card' === $notification->data->object->source->type ) || ( isset( $notification->data->object->source->type ) && 'three_d_secure' === $notification->data->object->source->type ) ) {
+		if ((isset($notification->data->object->source->type) && 'card' === $notification->data->object->source->type) || (isset($notification->data->object->source->type) && 'three_d_secure' === $notification->data->object->source->type)) {
 			return;
 		}
 
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
-		if ( ! $order->has_status( 'on-hold' ) ) {
+		if ( ! $order->has_status('on-hold')) {
 			return;
 		}
 
 		// Store other data such as fees
-		$order->set_transaction_id( $notification->data->object->id );
+		$order->set_transaction_id($notification->data->object->id);
 
-		if ( isset( $notification->data->object->balance_transaction ) ) {
-			$this->update_fees( $order, $notification->data->object->balance_transaction );
+		if (isset($notification->data->object->balance_transaction)) {
+			$this->update_fees($order, $notification->data->object->balance_transaction);
 		}
 
-		$order->payment_complete( $notification->data->object->id );
+		$order->payment_complete($notification->data->object->id);
 
 		/* translators: transaction id */
-		$order->add_order_note( sprintf( __( 'Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe' ), $notification->data->object->id ) );
+		$order->add_order_note(sprintf(__('Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe'), $notification->data->object->id));
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 	}
@@ -445,27 +445,27 @@ 
 	 * @since 4.1.5 Can handle any fail payments from any methods.
 	 * @param object $notification
 	 */
-	public function process_webhook_charge_failed( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_charge_failed($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		// If order status is already in failed status don't continue.
-		if ( $order->has_status( 'failed' ) ) {
+		if ($order->has_status('failed')) {
 			return;
 		}
 
-		$message = __( 'This payment failed to clear.', 'woocommerce-gateway-stripe' );
-		if ( ! $order->get_meta( '_stripe_status_final', false ) ) {
-			$order->update_status( 'failed', $message );
+		$message = __('This payment failed to clear.', 'woocommerce-gateway-stripe');
+		if ( ! $order->get_meta('_stripe_status_final', false)) {
+			$order->update_status('failed', $message);
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 
-		do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+		do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 	}
 
 	/**
@@ -476,33 +476,33 @@ 
 	 * @since 4.1.15 Add check to make sure order is processed by Stripe.
 	 * @param object $notification
 	 */
-	public function process_webhook_source_canceled( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_source_canceled($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
 		// If can't find order by charge ID, try source ID.
-		if ( ! $order ) {
-			$order = WC_Stripe_Helper::get_order_by_source_id( $notification->data->object->id );
+		if ( ! $order) {
+			$order = WC_Stripe_Helper::get_order_by_source_id($notification->data->object->id);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( 'Could not find order via charge/source ID: ' . $notification->data->object->id );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('Could not find order via charge/source ID: ' . $notification->data->object->id);
 				return;
 			}
 		}
 
 		// Don't proceed if payment method isn't Stripe.
-		if ( 'stripe' !== $order->get_payment_method() ) {
-			WC_Stripe_Logger::log( 'Canceled webhook abort: Order was not processed by Stripe: ' . $order->get_id() );
+		if ('stripe' !== $order->get_payment_method()) {
+			WC_Stripe_Logger::log('Canceled webhook abort: Order was not processed by Stripe: ' . $order->get_id());
 			return;
 		}
 
-		$message = __( 'This payment was cancelled.', 'woocommerce-gateway-stripe' );
-		if ( ! $order->has_status( 'cancelled' ) && ! $order->get_meta( '_stripe_status_final', false ) ) {
-			$order->update_status( 'cancelled', $message );
+		$message = __('This payment was cancelled.', 'woocommerce-gateway-stripe');
+		if ( ! $order->has_status('cancelled') && ! $order->get_meta('_stripe_status_final', false)) {
+			$order->update_status('cancelled', $message);
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 
-		do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+		do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 	}
 
 	/**
@@ -512,59 +512,59 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_refund( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_refund($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id = $order->get_id();
 
-		if ( 'stripe' === $order->get_payment_method() ) {
+		if ('stripe' === $order->get_payment_method()) {
 			$charge    = $order->get_transaction_id();
-			$captured  = $order->get_meta( '_stripe_charge_captured', true );
-			$refund_id = $order->get_meta( '_stripe_refund_id', true );
+			$captured  = $order->get_meta('_stripe_charge_captured', true);
+			$refund_id = $order->get_meta('_stripe_refund_id', true);
 
 			// If the refund ID matches, don't continue to prevent double refunding.
-			if ( $notification->data->object->refunds->data[0]->id === $refund_id ) {
+			if ($notification->data->object->refunds->data[0]->id === $refund_id) {
 				return;
 			}
 
 			// Only refund captured charge.
-			if ( $charge ) {
-				$reason = ( isset( $captured ) && 'yes' === $captured ) ? __( 'Refunded via Stripe Dashboard', 'woocommerce-gateway-stripe' ) : __( 'Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe' );
+			if ($charge) {
+				$reason = (isset($captured) && 'yes' === $captured) ? __('Refunded via Stripe Dashboard', 'woocommerce-gateway-stripe') : __('Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe');
 
 				// Create the refund.
 				$refund = wc_create_refund(
 					array(
 						'order_id' => $order_id,
-						'amount'   => $this->get_refund_amount( $notification ),
+						'amount'   => $this->get_refund_amount($notification),
 						'reason'   => $reason,
 					)
 				);
 
-				if ( is_wp_error( $refund ) ) {
-					WC_Stripe_Logger::log( $refund->get_error_message() );
+				if (is_wp_error($refund)) {
+					WC_Stripe_Logger::log($refund->get_error_message());
 				}
 
-				$order->update_meta_data( '_stripe_refund_id', $notification->data->object->refunds->data[0]->id );
+				$order->update_meta_data('_stripe_refund_id', $notification->data->object->refunds->data[0]->id);
 
-				$amount = wc_price( $notification->data->object->refunds->data[0]->amount / 100 );
+				$amount = wc_price($notification->data->object->refunds->data[0]->amount / 100);
 
-				if ( in_array( strtolower( $order->get_currency() ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
-					$amount = wc_price( $notification->data->object->refunds->data[0]->amount );
+				if (in_array(strtolower($order->get_currency()), WC_Stripe_Helper::no_decimal_currencies())) {
+					$amount = wc_price($notification->data->object->refunds->data[0]->amount);
 				}
 
-				if ( isset( $notification->data->object->refunds->data[0]->balance_transaction ) ) {
-					$this->update_fees( $order, $notification->data->object->refunds->data[0]->balance_transaction );
+				if (isset($notification->data->object->refunds->data[0]->balance_transaction)) {
+					$this->update_fees($order, $notification->data->object->refunds->data[0]->balance_transaction);
 				}
 
 				/* translators: 1) dollar amount 2) transaction id 3) refund message */
-				$refund_message = ( isset( $captured ) && 'yes' === $captured ) ? sprintf( __( 'Refunded %1$s - Refund ID: %2$s - %3$s', 'woocommerce-gateway-stripe' ), $amount, $notification->data->object->refunds->data[0]->id, $reason ) : __( 'Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe' );
+				$refund_message = (isset($captured) && 'yes' === $captured) ? sprintf(__('Refunded %1$s - Refund ID: %2$s - %3$s', 'woocommerce-gateway-stripe'), $amount, $notification->data->object->refunds->data[0]->id, $reason) : __('Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe');
 
-				$order->add_order_note( $refund_message );
+				$order->add_order_note($refund_message);
 			}
 		}
 	}
@@ -575,32 +575,32 @@ 
 	 * @since 4.0.6
 	 * @param object $notification
 	 */
-	public function process_review_opened( $notification ) {
-		if ( isset( $notification->data->object->payment_intent ) ) {
-			$order = WC_Stripe_Helper::get_order_by_intent_id( $notification->data->object->payment_intent );
+	public function process_review_opened($notification) {
+		if (isset($notification->data->object->payment_intent)) {
+			$order = WC_Stripe_Helper::get_order_by_intent_id($notification->data->object->payment_intent);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Opened] Could not find order via intent ID: ' . $notification->data->object->payment_intent );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Opened] Could not find order via intent ID: ' . $notification->data->object->payment_intent);
 				return;
 			}
 		} else {
-			$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+			$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Opened] Could not find order via charge ID: ' . $notification->data->object->charge );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Opened] Could not find order via charge ID: ' . $notification->data->object->charge);
 				return;
 			}
 		}
 
-		$order->update_meta_data( '_stripe_status_before_hold', $order->get_status() );
+		$order->update_meta_data('_stripe_status_before_hold', $order->get_status());
 
 		/* translators: 1) The URL to the order. 2) The reason type. */
-		$message = sprintf( __( 'A review has been opened for this order. Action is needed. Please go to your <a href="%1$s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review the issue. Reason: (%2$s)', 'woocommerce-gateway-stripe' ), $this->get_transaction_url( $order ), $notification->data->object->reason );
+		$message = sprintf(__('A review has been opened for this order. Action is needed. Please go to your <a href="%1$s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review the issue. Reason: (%2$s)', 'woocommerce-gateway-stripe'), $this->get_transaction_url($order), $notification->data->object->reason);
 
-		if ( apply_filters( 'wc_stripe_webhook_review_change_order_status', true, $order, $notification ) && ! $order->get_meta( '_stripe_status_final', false ) ) {
-			$order->update_status( 'on-hold', $message );
+		if (apply_filters('wc_stripe_webhook_review_change_order_status', true, $order, $notification) && ! $order->get_meta('_stripe_status_final', false)) {
+			$order->update_status('on-hold', $message);
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 	}
 
@@ -610,34 +610,34 @@ 
 	 * @since 4.0.6
 	 * @param object $notification
 	 */
-	public function process_review_closed( $notification ) {
-		if ( isset( $notification->data->object->payment_intent ) ) {
-			$order = WC_Stripe_Helper::get_order_by_intent_id( $notification->data->object->payment_intent );
+	public function process_review_closed($notification) {
+		if (isset($notification->data->object->payment_intent)) {
+			$order = WC_Stripe_Helper::get_order_by_intent_id($notification->data->object->payment_intent);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Closed] Could not find order via intent ID: ' . $notification->data->object->payment_intent );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Closed] Could not find order via intent ID: ' . $notification->data->object->payment_intent);
 				return;
 			}
 		} else {
-			$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+			$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Closed] Could not find order via charge ID: ' . $notification->data->object->charge );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Closed] Could not find order via charge ID: ' . $notification->data->object->charge);
 				return;
 			}
 		}
 
 		/* translators: 1) The reason type. */
-		$message = sprintf( __( 'The opened review for this order is now closed. Reason: (%s)', 'woocommerce-gateway-stripe' ), $notification->data->object->reason );
+		$message = sprintf(__('The opened review for this order is now closed. Reason: (%s)', 'woocommerce-gateway-stripe'), $notification->data->object->reason);
 
 		if (
-			$order->has_status( 'on-hold' ) &&
-			apply_filters( 'wc_stripe_webhook_review_change_order_status', true, $order, $notification ) &&
-			! $order->get_meta( '_stripe_status_final', false )
+			$order->has_status('on-hold') &&
+			apply_filters('wc_stripe_webhook_review_change_order_status', true, $order, $notification) &&
+			! $order->get_meta('_stripe_status_final', false)
 		) {
-			$order->update_status( $order->get_meta( '_stripe_status_before_hold', 'processing' ), $message );
+			$order->update_status($order->get_meta('_stripe_status_before_hold', 'processing'), $message);
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 	}
 
@@ -648,7 +648,7 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function is_partial_capture( $notification ) {
+	public function is_partial_capture($notification) {
 		return 0 < $notification->data->object->amount_refunded;
 	}
 
@@ -659,11 +659,11 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function get_refund_amount( $notification ) {
-		if ( $this->is_partial_capture( $notification ) ) {
+	public function get_refund_amount($notification) {
+		if ($this->is_partial_capture($notification)) {
 			$amount = $notification->data->object->refunds->data[0]->amount / 100;
 
-			if ( in_array( strtolower( $notification->data->object->currency ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
+			if (in_array(strtolower($notification->data->object->currency), WC_Stripe_Helper::no_decimal_currencies())) {
 				$amount = $notification->data->object->refunds->data[0]->amount;
 			}
 
@@ -680,12 +680,12 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function get_partial_amount_to_charge( $notification ) {
-		if ( $this->is_partial_capture( $notification ) ) {
-			$amount = ( $notification->data->object->amount - $notification->data->object->amount_refunded ) / 100;
+	public function get_partial_amount_to_charge($notification) {
+		if ($this->is_partial_capture($notification)) {
+			$amount = ($notification->data->object->amount - $notification->data->object->amount_refunded) / 100;
 
-			if ( in_array( strtolower( $notification->data->object->currency ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
-				$amount = ( $notification->data->object->amount - $notification->data->object->amount_refunded );
+			if (in_array(strtolower($notification->data->object->currency), WC_Stripe_Helper::no_decimal_currencies())) {
+				$amount = ($notification->data->object->amount - $notification->data->object->amount_refunded);
 			}
 
 			return $amount;
@@ -694,75 +694,75 @@ 
 		return false;
 	}
 
-	public function process_payment_intent_success( $notification ) {
+	public function process_payment_intent_success($notification) {
 		$intent = $notification->data->object;
-		$order = WC_Stripe_Helper::get_order_by_intent_id( $intent->id );
+		$order = WC_Stripe_Helper::get_order_by_intent_id($intent->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via intent ID: ' . $intent->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via intent ID: ' . $intent->id);
 			return;
 		}
 
-		if ( ! $order->has_status( array( 'pending', 'failed' ) ) ) {
+		if ( ! $order->has_status(array('pending', 'failed'))) {
 			return;
 		}
 
-		if ( $this->lock_order_payment( $order, $intent ) ) {
+		if ($this->lock_order_payment($order, $intent)) {
 			return;
 		}
 
 		$order_id = $order->get_id();
-		if ( 'payment_intent.succeeded' === $notification->type || 'payment_intent.amount_capturable_updated' === $notification->type ) {
-			$charge = end( $intent->charges->data );
-			WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id succeeded for order $order_id" );
+		if ('payment_intent.succeeded' === $notification->type || 'payment_intent.amount_capturable_updated' === $notification->type) {
+			$charge = end($intent->charges->data);
+			WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id succeeded for order $order_id");
 
-			do_action( 'wc_gateway_stripe_process_payment', $charge, $order );
+			do_action('wc_gateway_stripe_process_payment', $charge, $order);
 
 			// Process valid response.
-			$this->process_response( $charge, $order );
+			$this->process_response($charge, $order);
 
 		} else {
 			$error_message = $intent->last_payment_error ? $intent->last_payment_error->message : "";
 
 			/* translators: 1) The error message that was received from Stripe. */
-			$message = sprintf( __( 'Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe' ), $error_message );
+			$message = sprintf(__('Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe'), $error_message);
 
-			if ( ! $order->get_meta( '_stripe_status_final', false ) ) {
-				$order->update_status( 'failed', $message );
+			if ( ! $order->get_meta('_stripe_status_final', false)) {
+				$order->update_status('failed', $message);
 			} else {
-				$order->add_order_note( $message );
+				$order->add_order_note($message);
 			}
 
-			do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+			do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 
-			$this->send_failed_order_email( $order_id );
+			$this->send_failed_order_email($order_id);
 		}
 
-		$this->unlock_order_payment( $order );
+		$this->unlock_order_payment($order);
 	}
 
-	public function process_setup_intent( $notification ) {
+	public function process_setup_intent($notification) {
 		$intent = $notification->data->object;
-		$order = WC_Stripe_Helper::get_order_by_setup_intent_id( $intent->id );
+		$order = WC_Stripe_Helper::get_order_by_setup_intent_id($intent->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via setup intent ID: ' . $intent->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via setup intent ID: ' . $intent->id);
 			return;
 		}
 
-		if ( ! $order->has_status( array( 'pending', 'failed' ) ) ) {
+		if ( ! $order->has_status(array('pending', 'failed'))) {
 			return;
 		}
 
-		if ( $this->lock_order_payment( $order, $intent ) ) {
+		if ($this->lock_order_payment($order, $intent)) {
 			return;
 		}
 
 		$order_id = $order->get_id();
-		if ( 'setup_intent.succeeded' === $notification->type ) {
-			WC_Stripe_Logger::log( "Stripe SetupIntent $intent->id succeeded for order $order_id" );
-			if ( WC_Stripe_Helper::is_pre_orders_exists() && WC_Pre_Orders_Order::order_contains_pre_order( $order ) ) {
-				WC_Pre_Orders_Order::mark_order_as_pre_ordered( $order );
+		if ('setup_intent.succeeded' === $notification->type) {
+			WC_Stripe_Logger::log("Stripe SetupIntent $intent->id succeeded for order $order_id");
+			if (WC_Stripe_Helper::is_pre_orders_exists() && WC_Pre_Orders_Order::order_contains_pre_order($order)) {
+				WC_Pre_Orders_Order::mark_order_as_pre_ordered($order);
 			} else {
 				$order->payment_complete();
 			}
@@ -770,18 +770,18 @@ 
 			$error_message = $intent->last_setup_error ? $intent->last_setup_error->message : "";
 
 			/* translators: 1) The error message that was received from Stripe. */
-			$message = sprintf( __( 'Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe' ), $error_message );
+			$message = sprintf(__('Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe'), $error_message);
 
-			if ( ! $order->get_meta( '_stripe_status_final', false ) ) {
-				$order->update_status( 'failed', $message );
+			if ( ! $order->get_meta('_stripe_status_final', false)) {
+				$order->update_status('failed', $message);
 			} else {
-				$order->add_order_note( $message );
+				$order->add_order_note($message);
 			}
 
-			$this->send_failed_order_email( $order_id );
+			$this->send_failed_order_email($order_id);
 		}
 
-		$this->unlock_order_payment( $order );
+		$this->unlock_order_payment($order);
 	}
 
 	/**
@@ -791,59 +791,59 @@ 
 	 * @version 4.0.0
 	 * @param string $request_body
 	 */
-	public function process_webhook( $request_body ) {
-		$notification = json_decode( $request_body );
+	public function process_webhook($request_body) {
+		$notification = json_decode($request_body);
 
-		switch ( $notification->type ) {
+		switch ($notification->type) {
 			case 'source.chargeable':
-				$this->process_webhook_payment( $notification );
+				$this->process_webhook_payment($notification);
 				break;
 
 			case 'source.canceled':
-				$this->process_webhook_source_canceled( $notification );
+				$this->process_webhook_source_canceled($notification);
 				break;
 
 			case 'charge.succeeded':
-				$this->process_webhook_charge_succeeded( $notification );
+				$this->process_webhook_charge_succeeded($notification);
 				break;
 
 			case 'charge.failed':
-				$this->process_webhook_charge_failed( $notification );
+				$this->process_webhook_charge_failed($notification);
 				break;
 
 			case 'charge.captured':
-				$this->process_webhook_capture( $notification );
+				$this->process_webhook_capture($notification);
 				break;
 
 			case 'charge.dispute.created':
-				$this->process_webhook_dispute( $notification );
+				$this->process_webhook_dispute($notification);
 				break;
 
 			case 'charge.dispute.closed':
-				$this->process_webhook_dispute_closed( $notification );
+				$this->process_webhook_dispute_closed($notification);
 				break;
 
 			case 'charge.refunded':
-				$this->process_webhook_refund( $notification );
+				$this->process_webhook_refund($notification);
 				break;
 
 			case 'review.opened':
-				$this->process_review_opened( $notification );
+				$this->process_review_opened($notification);
 				break;
 
 			case 'review.closed':
-				$this->process_review_closed( $notification );
+				$this->process_review_closed($notification);
 				break;
 
 			case 'payment_intent.succeeded':
 			case 'payment_intent.payment_failed':
 			case 'payment_intent.amount_capturable_updated':
-				$this->process_payment_intent_success( $notification );
+				$this->process_payment_intent_success($notification);
 				break;
 
 			case 'setup_intent.succeeded':
 			case 'setup_intent.setup_failed':
-				$this->process_setup_intent( $notification );
+				$this->process_setup_intent($notification);
 
 		}
 	}