give / src / PaymentGateways / Gateways / PayPalStandard / Controllers / PayPalStandardWebhook.php

PayPalStandardWebhook.php in GiveWP – Donation Plugin and Fundraising Platform 4.15.5, at src/PaymentGateways/Gateways/PayPalStandard/Controllers/PayPalStandardWebhook.php

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1	<?php
2
3	namespace Give\PaymentGateways\Gateways\PayPalStandard\Controllers;
4
5	use Give\Log\Log;
6	use Give\PaymentGateways\Gateways\PayPalStandard\PayPalStandard;
7	use Give\PaymentGateways\Gateways\PayPalStandard\Webhooks\WebhookRegister;
8	use Give\PaymentGateways\Gateways\PayPalStandard\Webhooks\WebhookValidator;
9
10	/**
11	* This class use to handle PayPal ipn.
12	*
13	* @since 2.19.0
14	*/
15	class PayPalStandardWebhook
16	{
17
18	/**
19	* @var WebhookValidator
20	*/
21	private $webhookValidator;
22
23	public function __construct(WebhookValidator $webhookValidator)
24	{
25	$this->webhookValidator = $webhookValidator;
26	}
27
28	/**
29	* Handle PayPal ipn
30	*
31	* @since 2.19.0
32	* @since 2.19.3 Respond with 200 http status to ipn.
33	*/
34	public function handle()
35	{
36	$eventData = file_get_contents('php://input');
37	$eventData = wp_parse_args($eventData);
38
39	if ( ! $this->webhookValidator->verifyEventSignature($eventData)) {
40	exit();
41	}
42
43	$donationId = isset($eventData['custom']) ? absint($eventData['custom']) : 0;
44	$txnType = $eventData['txn_type'];
45
46	// ipn verification can be disabled in GiveWP (<=2.15.0).
47	// This check will prevent anonymous requests from editing donation, if ipn verification disabled.
48	if ( ! $this->verifyDonationId($donationId)) {
49	Log::error(
50	'PayPal Standard IPN Error',
51	[
52	'Message' => 'Donation id (from IPN) does not exist.',
53	'Event Data' => $eventData,
54	]
55	);
56	exit();
57	}
58
59	$this->recordIpn($eventData, $donationId);
60	$this->recordIpnInDonation($donationId);
61
62	/* @var WebhookRegister $webhookRegisterer */
63	$webhookRegisterer = give(WebhookRegister::class);
64	if ($webhookRegisterer->hasEventRegistered($txnType)) {
65	$webhookRegisterer->getEventHandler($txnType)->processEvent((object)$eventData);
66	}
67
68	$this->supportLegacyActions($txnType, $eventData, $donationId);
69
70	exit;
71	}
72
73	/**
74	* @since 2.19.0
75	*
76	* @param int $donationId
77	*
78	* @param array $eventData
79	*/
80	private function recordIpn(array $eventData, $donationId)
81	{
82	update_option(
83	'give_last_paypal_ipn_received',
84	[
85	'auth_status' => 'VERIFIED',
86	'transaction_id' => isset($eventData['txn_id']) ? $eventData['txn_id'] : 'N/A',
87	'payment_id' => $donationId,
88	],
89	false
90	);
91	}
92
93	/**
94	* @since 2.19.0
95	*
96	* @param int $donationId
97	*/
98	private function recordIpnInDonation($donationId)
99	{
100	$currentTimestamp = current_time('timestamp');
101
102	give_insert_payment_note(
103	$donationId,
104	sprintf(
105	__('IPN received on %1$s at %2$s', 'give'),
106	date_i18n('m/d/Y', $currentTimestamp),
107	date_i18n('H:i', $currentTimestamp)
108	)
109	);
110
111	give_update_meta($donationId, 'give_last_paypal_ipn_received', $currentTimestamp);
112	}
113
114	/**
115	* @param $donationId
116	*
117	* @return bool
118	*/
119	private function verifyDonationId($donationId)
120	{
121	return $donationId && PayPalStandard::id() === give_get_payment_gateway($donationId);
122	}
123
124	/**
125	* @since 2.19.0
126	*
127	* @param string $txnType
128	* @param array $eventData
129	* @param int $donationId
130	*
131	* @return void
132	*/
133	private function supportLegacyActions($txnType, array $eventData, $donationId)
134	{
135	if (has_action('give_paypal_' . $txnType)) {
136	/**
137	* Fires while processing PayPal IPN $txnType.
138	*
139	* Allow PayPal IPN types to be processed separately.
140	*
141	* @since 1.0
142	*
143	* @param array $eventData Encoded data.
144	* @param int $donationId donation id.
145	*/
146	do_action("give_paypal_{$txnType}", $eventData, $donationId);
147	} else {
148	/**
149	* Fires while process PayPal IPN.
150	*
151	* Fallback to web accept just in case the txn_type isn't present.
152	*
153	* @since 1.0
154	*
155	* @param array $eventData Encoded data.
156	* @param int $donationId donation id.
157	*/
158	do_action('give_paypal_web_accept', $eventData, $donationId);
159	}
160	}
161	}
162