worker / src / Symfony / Process / ProcessUtils.php

ProcessUtils.php in ManageWP Worker 4.9.25, at src/Symfony/Process/ProcessUtils.php

140 lines 3.9 KB

Raw Download Zip

1	<?php
2
3	/*
4	* This file is part of the Symfony package.
5	*
6	* (c) Fabien Potencier <fabien@symfony.com>
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	/**
13	* ProcessUtils is a bunch of utility methods.
14	*
15	* This class contains static methods only and is not meant to be instantiated.
16	*
17	* @author Martin Hasoň <martin.hason@gmail.com>
18	*/
19	class Symfony_Process_ProcessUtils
20	{
21	/**
22	* This class should not be instantiated.
23	*/
24	private function __construct()
25	{
26	}
27
28	/**
29	* Escapes a string to be used as a shell argument.
30	*
31	* @param string $argument The argument that will be escaped
32	*
33	* @return string The escaped argument
34	*/
35	public static function escapeArgument($argument)
36	{
37	//Fix for PHP bug #43784 escapeshellarg removes % from given string
38	//Fix for PHP bug #49446 escapeshellarg doesn't work on Windows
39	//@see https://bugs.php.net/bug.php?id=43784
40	//@see https://bugs.php.net/bug.php?id=49446
41	if (self::isWindows()) {
42	if ('' === $argument) {
43	return escapeshellarg($argument);
44	}
45
46	$escapedArgument = '';
47	$quote = false;
48	foreach (preg_split('/(")/i', $argument, -1, PREG_SPLIT_NO_EMPTY \| PREG_SPLIT_DELIM_CAPTURE) as $part) {
49	if ('"' === $part) {
50	$escapedArgument .= '\\"';
51	} elseif (self::isSurroundedBy($part, '%')) {
52	// Avoid environment variable expansion
53	$escapedArgument .= '^%"'.substr($part, 1, -1).'"^%';
54	} else {
55	// escape trailing backslash
56	if ('\\' === substr($part, -1)) {
57	$part .= '\\';
58	}
59	$quote = true;
60	$escapedArgument .= $part;
61	}
62	}
63	if ($quote) {
64	$escapedArgument = '"'.$escapedArgument.'"';
65	}
66
67	return $escapedArgument;
68	}
69
70	return escapeshellarg($argument);
71	}
72
73	/**
74	* Validates and normalizes a Process input.
75	*
76	* @param string $caller The name of method call that validates the input
77	* @param mixed $input The input to validate
78	*
79	* @return string The validated input
80	*
81	* @throws InvalidArgumentException In case the input is not valid
82	*/
83	public static function validateInput($caller, $input)
84	{
85	if (null !== $input) {
86	if (is_resource($input)) {
87	return $input;
88	}
89	if (is_scalar($input)) {
90	return (string) $input;
91	}
92
93	throw new Symfony_Process_Exception_InvalidArgumentException(sprintf('%s only accepts strings or stream resources.', $caller));
94	}
95
96	return $input;
97	}
98
99	private static function isSurroundedBy($arg, $char)
100	{
101	return 2 < strlen($arg) && $char === $arg[0] && $char === $arg[strlen($arg) - 1];
102	}
103
104	/**
105	* @return bool
106	*/
107	public static function isWindows()
108	{
109	return '\\' === DIRECTORY_SEPARATOR;
110	}
111
112	/**
113	* Backport of PHP >=5.3 function array_replace
114	*
115	* @link http://www.php.net/manual/en/function.array-replace.php#94458
116	*/
117	public static function arrayReplace(array $array, array $array1)
118	{
119	$args = func_get_args();
120	$count = func_num_args();
121
122	for ($i = 0; $i < $count; ++$i) {
123	if (is_array($args[$i])) {
124	foreach ($args[$i] as $key => $val) {
125	$array[$key] = $val;
126	}
127	} else {
128	trigger_error(
129	__FUNCTION__.'(): Argument #'.($i + 1).' is not an array',
130	E_USER_WARNING
131	);
132
133	return null;
134	}
135	}
136
137	return $array;
138	}
139	}
140