defender-security / vendor / symfony / process / ProcessUtils.php

ProcessUtils.php in Defender Security – Malware Scanner, Login Security & Firewall 3.0.1, at vendor/symfony/process/ProcessUtils.php

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1	<?php
2
3	/*
4	* This file is part of the Symfony package.
5	*
6	* (c) Fabien Potencier <[email protected]>
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11
12	namespace Symfony\Component\Process;
13
14	use Symfony\Component\Process\Exception\InvalidArgumentException;
15
16	/**
17	* ProcessUtils is a bunch of utility methods.
18	*
19	* This class contains static methods only and is not meant to be instantiated.
20	*
21	* @author Martin Hasoň <[email protected]>
22	*/
23	class ProcessUtils
24	{
25	/**
26	* This class should not be instantiated.
27	*/
28	private function __construct()
29	{
30	}
31
32	/**
33	* Validates and normalizes a Process input.
34	*
35	* @param string $caller The name of method call that validates the input
36	* @param mixed $input The input to validate
37	*
38	* @return mixed The validated input
39	*
40	* @throws InvalidArgumentException In case the input is not valid
41	*/
42	public static function validateInput($caller, $input)
43	{
44	if (null !== $input) {
45	if (\is_resource($input)) {
46	return $input;
47	}
48	if (\is_string($input)) {
49	return $input;
50	}
51	if (is_scalar($input)) {
52	return (string) $input;
53	}
54	if ($input instanceof Process) {
55	return $input->getIterator($input::ITER_SKIP_ERR);
56	}
57	if ($input instanceof \Iterator) {
58	return $input;
59	}
60	if ($input instanceof \Traversable) {
61	return new \IteratorIterator($input);
62	}
63
64	throw new InvalidArgumentException(sprintf('"%s" only accepts strings, Traversable objects or stream resources.', $caller));
65	}
66
67	return $input;
68	}
69	}
70