give / src / DonationForms / Routes / DonateRouteSignature.php

DonateRouteSignature.php in GiveWP – Donation Plugin and Fundraising Platform 4.16.8.1, at src/DonationForms/Routes/DonateRouteSignature.php

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1	<?php
2
3	namespace Give\DonationForms\Routes;
4
5	/**
6	* @since 3.0.0
7	*/
8	class DonateRouteSignature
9	{
10	/**
11	* @var string
12	*/
13	private $signature;
14	/**
15	* @var string
16	*/
17	public $expiration;
18
19	/**
20	* @since 3.0.0
21	*/
22	public function __construct(string $name, string $expiration = null)
23	{
24	$this->expiration = $expiration ?: $this->createExpirationTimestamp();
25	$this->signature = $this->generateSignatureString($name, $this->expiration);
26	}
27
28
29	/**
30	* @since 3.0.0
31	*/
32	private function generateSignatureString(string $name, string $expiration): string
33	{
34	return "$name\|$expiration";
35	}
36
37	/**
38	* @since 3.0.0
39	*
40	* @return string
41	*/
42	public function toString(): string
43	{
44	return $this->signature;
45	}
46
47	/**
48	* @since 3.0.0
49	*
50	* @return string
51	*/
52	public function toHash(): string
53	{
54	return wp_hash($this->signature);
55	}
56
57	/**
58	* Create expiration timestamp
59	*
60	* @since 3.0.0
61	*
62	* @return string
63	*/
64	public function createExpirationTimestamp(): string
65	{
66	return (string)current_datetime()->modify('+1 day')->getTimestamp();
67	}
68
69
70	/**
71	* @since 3.0.0
72	*/
73	public function isValid(string $suppliedSignature): bool
74	{
75	$isSignatureValid = hash_equals(
76	$suppliedSignature,
77	$this->toHash()
78	);
79
80	$isNotExpired = ((int)$this->expiration) >= current_datetime()->getTimestamp();
81
82	return $isSignatureValid && $isNotExpired;
83	}
84	}
85