wpfunnels / vendor / league / glide / src / Signatures / Signature.php

Signature.php in WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell 3.12.4, at vendor/league/glide/src/Signatures/Signature.php

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1	<?php
2
3	namespace League\Glide\Signatures;
4
5	class Signature implements SignatureInterface
6	{
7	/**
8	* Secret key used to generate signature.
9	*
10	* @var string
11	*/
12	protected $signKey;
13
14	/**
15	* Create Signature instance.
16	*
17	* @param string $signKey Secret key used to generate signature.
18	*/
19	public function __construct($signKey)
20	{
21	$this->signKey = $signKey;
22	}
23
24	/**
25	* Add an HTTP signature to manipulation parameters.
26	*
27	* @param string $path The resource path.
28	* @param array $params The manipulation parameters.
29	*
30	* @return array The updated manipulation parameters.
31	*/
32	public function addSignature($path, array $params)
33	{
34	return array_merge($params, ['s' => $this->generateSignature($path, $params)]);
35	}
36
37	/**
38	* Validate a request signature.
39	*
40	* @param string $path The resource path.
41	* @param array $params The manipulation params.
42	*
43	* @throws SignatureException
44	*
45	* @return void
46	*/
47	public function validateRequest($path, array $params)
48	{
49	if (!isset($params['s'])) {
50	throw new SignatureException('Signature is missing.');
51	}
52
53	if ($params['s'] !== $this->generateSignature($path, $params)) {
54	throw new SignatureException('Signature is not valid.');
55	}
56	}
57
58	/**
59	* Generate an HTTP signature.
60	*
61	* @param string $path The resource path.
62	* @param array $params The manipulation parameters.
63	*
64	* @return string The generated HTTP signature.
65	*/
66	public function generateSignature($path, array $params)
67	{
68	unset($params['s']);
69	ksort($params);
70
71	return md5($this->signKey.':'.ltrim($path, '/').'?'.http_build_query($params));
72	}
73	}
74