stripe / src / PaymentMethods / AbstractPaymentMethod.php

AbstractPaymentMethod.php in Stripe Payment Forms by WP Simple Pay – Accept Credit Card Payments + Subscriptions with Stripe trunk, at src/PaymentMethods/AbstractPaymentMethod.php

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1	<?php
2	/**
3	* Abstract class for payment methods.
4	*
5	* @since 4.16.0
6	* @package SimplePay\Core\PaymentMethods
7	*/
8
9	namespace SimplePay\Core\PaymentMethods;
10
11	use SimplePay\Core\Payments\Payment_Confirmation;
12
13	/**
14	* Abstract class for payment methods.
15	*
16	* @since 4.16.0
17	* @package SimplePay\Core\PaymentMethods
18	*/
19	abstract class AbstractPaymentMethod {
20
21	/**
22	* The payment method ID.
23	*
24	* @var string
25	* @since 4.16.0
26	*/
27	const PAYMENT_METHOD_ID = '';
28
29	/**
30	* Register the payment method.
31	*
32	* @since 4.16.0
33	*
34	* @param Collection $payment_methods Payment methods collection.
35	* @return void
36	*/
37	abstract public function register( $payment_methods ): void;
38
39	/**
40	* Validates the Payment Confirmation data.
41	*
42	* If the data includes an invalid or incomplete PaymentIntent
43	* redirect to the form's failure page.
44	*
45	* @since 4.2.0
46	*/
47	public function redirect_failed_payment(): void {
48	// Ensure we can retrieve a PaymentIntent.
49	if ( ! isset( $_GET['payment_intent'] ) ) {
50	return;
51	}
52
53	// Ensure we paid with the correct payment method.
54	if ( ! isset( $_GET['source_type'] ) \|\| static::PAYMENT_METHOD_ID !== $_GET['source_type'] ) {
55	return;
56	}
57
58	// Ensure we have a customer so `Payment_Confirmation\get_confirmation_data()` doesn't fail.
59	if ( ! isset( $_GET['customer_id'] ) ) {
60	return;
61	}
62
63	$payment_confirmation_data = Payment_Confirmation\get_confirmation_data();
64
65	// Ensure we have a Payment Form to reference.
66	if ( ! isset( $payment_confirmation_data['form'] ) ) {
67	return;
68	}
69
70	$payment_intent = isset( $payment_confirmation_data['paymentintents'] )
71	? current( $payment_confirmation_data['paymentintents'] )
72	: false;
73
74	$failure_page = $payment_confirmation_data['form']->payment_cancelled_page;
75
76	// Redirect to failure if PaymentIntent cannot be found.
77	if ( false === $payment_intent ) {
78	wp_safe_redirect( $failure_page );
79	}
80
81	// Do nothing if the Intent has succeeded.
82	if ( 'succeeded' === $payment_intent->status ) {
83	return;
84	}
85
86	// Do nothing if the Intent did not have an error.
87	if ( ! isset( $payment_intent->last_payment_error ) ) {
88	return;
89	}
90
91	// Do nothing if the Intent is not from the correct payment method.
92	if ( static::PAYMENT_METHOD_ID !== $payment_intent->last_payment_error->payment_method->type ) {
93	return;
94	}
95
96	// Redirect to failure page.
97	wp_safe_redirect( $failure_page );
98	}
99	}
100