ivyforms / backend / src / Services / Payment / SquareTokenRefreshService.php

SquareTokenRefreshService.php in The Innovative Form Builder – IvyForms 1.5, at backend/src/Services/Payment/SquareTokenRefreshService.php

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1	<?php
2
3	namespace IvyForms\Services\Payment;
4
5	use IvyForms\Services\Integrations\MiddlewareRequestAuthService;
6	use IvyForms\Services\Integrations\MiddlewareUrl;
7	use IvyForms\Services\Settings\SettingsService;
8
9	/**
10	* Refreshes Square OAuth tokens via ivyforms-middleware.
11	*/
12	class SquareTokenRefreshService
13	{
14	private const TOKEN_REFRESH_BUFFER_SECONDS = 432000; // 5 days
15
16	private SettingsService $settingsService;
17	private TokenEncryptionService $tokenEncryption;
18	private MiddlewareRequestAuthService $middlewareRequestAuthService;
19
20	public function __construct(
21	SettingsService $settingsService,
22	TokenEncryptionService $tokenEncryption,
23	MiddlewareRequestAuthService $middlewareRequestAuthService
24	) {
25	$this->settingsService = $settingsService;
26	$this->tokenEncryption = $tokenEncryption;
27	$this->middlewareRequestAuthService = $middlewareRequestAuthService;
28	}
29
30	/**
31	* @param array<string, mixed> $settings
32	*/
33	public function refreshIfNeeded(array $settings): void
34	{
35	if (!$this->shouldRefresh($settings)) {
36	return;
37	}
38
39	$tokenData = $this->requestRefreshedTokens($settings);
40	if ($tokenData === null) {
41	return;
42	}
43
44	$this->persistRefreshedTokens($settings, $tokenData);
45	}
46
47	/**
48	* @param array<string, mixed> $settings
49	*/
50	private function shouldRefresh(array $settings): bool
51	{
52	if (empty($settings['connected'])) {
53	return false;
54	}
55
56	$expiresAt = isset($settings['expiresAt']) ? strtotime((string) $settings['expiresAt']) : false;
57	if ($expiresAt === false) {
58	return false;
59	}
60
61	if ($expiresAt - time() > self::TOKEN_REFRESH_BUFFER_SECONDS) {
62	return false;
63	}
64
65	return (string) ($settings['refreshToken'] ?? '') !== '';
66	}
67
68	/**
69	* @param array<string, mixed> $settings
70	* @return array<string, mixed>\|null
71	*/
72	private function requestRefreshedTokens(array $settings): ?array
73	{
74	$middlewareUrl = MiddlewareUrl::getBaseUrl();
75	if ($middlewareUrl === '') {
76	return null;
77	}
78
79	$refreshToken = $this->resolveRefreshToken($settings);
80
81	return $this->fetchRefreshedTokenData($middlewareUrl, $refreshToken);
82	}
83
84	/**
85	* @param array<string, mixed> $settings
86	*/
87	private function resolveRefreshToken(array $settings): string
88	{
89	$refreshToken = (string) ($settings['refreshToken'] ?? '');
90	$decryptedRefresh = $this->tokenEncryption->decrypt($refreshToken);
91
92	return $decryptedRefresh !== '' ? $decryptedRefresh : $refreshToken;
93	}
94
95	/**
96	* @return array<string, mixed>\|null
97	*/
98	private function fetchRefreshedTokenData(string $middlewareUrl, string $refreshToken): ?array
99	{
100	$body = wp_json_encode(['refresh_token' => $refreshToken]);
101	if (!is_string($body)) {
102	return null;
103	}
104
105	$refreshUrl = $middlewareUrl . '/square/refresh';
106	$response = wp_remote_post(
107	$refreshUrl,
108	[
109	'headers' => $this->middlewareRequestAuthService->buildSignedHeaders($body, $refreshUrl, 'POST'),
110	'body' => $body,
111	'timeout' => 30,
112	]
113	);
114
115	return $this->parseRefreshResponse($response);
116	}
117
118	/**
119	* @param array<string, mixed>\|\WP_Error $response
120	* @return array<string, mixed>\|null
121	*/
122	private function parseRefreshResponse($response): ?array
123	{
124	if (is_wp_error($response)) {
125	return null;
126	}
127
128	if ((int) wp_remote_retrieve_response_code($response) !== 200) {
129	return null;
130	}
131
132	$decoded = json_decode((string) wp_remote_retrieve_body($response), true);
133	$tokenData = is_array($decoded) ? ($decoded['result'] ?? []) : [];
134
135	if (empty($tokenData['access_token']) \|\| !is_array($tokenData)) {
136	return null;
137	}
138
139	return $tokenData;
140	}
141
142	/**
143	* @param array<string, mixed> $settings
144	* @param array<string, mixed> $tokenData Plaintext tokens from authenticated middleware response.
145	*/
146	private function persistRefreshedTokens(array $settings, array $tokenData): void
147	{
148	$accessToken = (string) ($tokenData['access_token'] ?? '');
149	$refreshToken = (string) ($tokenData['refresh_token'] ?? '');
150
151	if ($accessToken === '') {
152	return;
153	}
154
155	$settings['accessToken'] = $this->tokenEncryption->encrypt($accessToken);
156	if ($refreshToken !== '') {
157	$settings['refreshToken'] = $this->tokenEncryption->encrypt($refreshToken);
158	}
159	if (!empty($tokenData['expires_at'])) {
160	$settings['expiresAt'] = (string) $tokenData['expires_at'];
161	}
162
163	$this->settingsService->setSetting('payment', 'square', $settings);
164	}
165	}
166