ivyforms / backend / vendor / laravel / serializable-closure / src / Serializers / Signed.php

Signed.php in The Innovative Form Builder – IvyForms 0.2.1, at backend/vendor/laravel/serializable-closure/src/Serializers/Signed.php

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1	<?php
2
3	namespace Laravel\SerializableClosure\Serializers;
4
5	use Laravel\SerializableClosure\Contracts\Serializable;
6	use Laravel\SerializableClosure\Exceptions\InvalidSignatureException;
7	use Laravel\SerializableClosure\Exceptions\MissingSecretKeyException;
8
9	class Signed implements Serializable
10	{
11	/**
12	* The signer that will sign and verify the closure's signature.
13	*
14	* @var \Laravel\SerializableClosure\Contracts\Signer\|null
15	*/
16	public static $signer;
17
18	/**
19	* The closure to be serialized/unserialized.
20	*
21	* @var \Closure
22	*/
23	protected $closure;
24
25	/**
26	* Creates a new serializable closure instance.
27	*
28	* @param \Closure $closure
29	* @return void
30	*/
31	public function __construct($closure)
32	{
33	$this->closure = $closure;
34	}
35
36	/**
37	* Resolve the closure with the given arguments.
38	*
39	* @return mixed
40	*/
41	public function __invoke()
42	{
43	return call_user_func_array($this->closure, func_get_args());
44	}
45
46	/**
47	* Gets the closure.
48	*
49	* @return \Closure
50	*/
51	public function getClosure()
52	{
53	return $this->closure;
54	}
55
56	/**
57	* Get the serializable representation of the closure.
58	*
59	* @return array
60	*/
61	public function __serialize()
62	{
63	if (! static::$signer) {
64	throw new MissingSecretKeyException();
65	}
66
67	return static::$signer->sign(
68	serialize(new Native($this->closure))
69	);
70	}
71
72	/**
73	* Restore the closure after serialization.
74	*
75	* @param array $signature
76	* @return void
77	*
78	* @throws \Laravel\SerializableClosure\Exceptions\InvalidSignatureException
79	*/
80	public function __unserialize($signature)
81	{
82	if (static::$signer && ! static::$signer->verify($signature)) {
83	throw new InvalidSignatureException();
84	}
85
86	/** @var \Laravel\SerializableClosure\Contracts\Serializable $serializable */
87	$serializable = unserialize($signature['serializable']);
88
89	$this->closure = $serializable->getClosure();
90	}
91	}
92