wpfunnels / vendor / symfony / process / PhpSubprocess.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\LogicException;
15	use Symfony\Component\Process\Exception\RuntimeException;
16
17	/**
18	* PhpSubprocess runs a PHP command as a subprocess while keeping the original php.ini settings.
19	*
20	* For this, it generates a temporary php.ini file taking over all the current settings and disables
21	* loading additional .ini files. Basically, your command gets prefixed using "php -n -c /tmp/temp.ini".
22	*
23	* Given your php.ini contains "memory_limit=-1" and you have a "MemoryTest.php" with the following content:
24	*
25	* <?php var_dump(ini_get('memory_limit'));
26	*
27	* These are the differences between the regular Process and PhpSubprocess classes:
28	*
29	* $p = new Process(['php', '-d', 'memory_limit=256M', 'MemoryTest.php']);
30	* $p->run();
31	* print $p->getOutput()."\n";
32	*
33	* This will output "string(2) "-1", because the process is started with the default php.ini settings.
34	*
35	* $p = new PhpSubprocess(['MemoryTest.php'], null, null, 60, ['php', '-d', 'memory_limit=256M']);
36	* $p->run();
37	* print $p->getOutput()."\n";
38	*
39	* This will output "string(4) "256M"", because the process is started with the temporarily created php.ini settings.
40	*
41	* @author Yanick Witschi <[email protected]>
42	* @author Partially copied and heavily inspired from composer/xdebug-handler by John Stevenson <[email protected]>
43	*/
44	class PhpSubprocess extends Process
45	{
46	/**
47	* @param array $command The command to run and its arguments listed as separate entries. They will automatically
48	* get prefixed with the PHP binary
49	* @param string\|null $cwd The working directory or null to use the working dir of the current PHP process
50	* @param array\|null $env The environment variables or null to use the same environment as the current PHP process
51	* @param int $timeout The timeout in seconds
52	* @param array\|null $php Path to the PHP binary to use with any additional arguments
53	*/
54	public function __construct(array $command, ?string $cwd = null, ?array $env = null, int $timeout = 60, ?array $php = null)
55	{
56	if (null === $php) {
57	$executableFinder = new PhpExecutableFinder();
58	$php = $executableFinder->find(false);
59	$php = false === $php ? null : array_merge([$php], $executableFinder->findArguments());
60	}
61
62	if (null === $php) {
63	throw new RuntimeException('Unable to find PHP binary.');
64	}
65
66	$tmpIni = $this->writeTmpIni($this->getAllIniFiles(), sys_get_temp_dir());
67
68	$php = array_merge($php, ['-n', '-c', $tmpIni]);
69	register_shutdown_function('unlink', $tmpIni);
70
71	$command = array_merge($php, $command);
72
73	parent::__construct($command, $cwd, $env, null, $timeout);
74	}
75
76	public static function fromShellCommandline(string $command, ?string $cwd = null, ?array $env = null, mixed $input = null, ?float $timeout = 60): static
77	{
78	throw new LogicException(\sprintf('The "%s()" method cannot be called when using "%s".', __METHOD__, self::class));
79	}
80
81	public function start(?callable $callback = null, array $env = []): void
82	{
83	if (null === $this->getCommandLine()) {
84	throw new RuntimeException('Unable to find the PHP executable.');
85	}
86
87	parent::start($callback, $env);
88	}
89
90	private function writeTmpIni(array $iniFiles, string $tmpDir): string
91	{
92	if (false === $tmpfile = @tempnam($tmpDir, '')) {
93	throw new RuntimeException('Unable to create temporary ini file.');
94	}
95
96	// $iniFiles has at least one item and it may be empty
97	if ('' === $iniFiles[0]) {
98	array_shift($iniFiles);
99	}
100
101	$content = '';
102
103	foreach ($iniFiles as $file) {
104	// Check for inaccessible ini files
105	if (($data = @file_get_contents($file)) === false) {
106	throw new RuntimeException('Unable to read ini: '.$file);
107	}
108	// Check and remove directives after HOST and PATH sections
109	if (preg_match('/^\s\[(?:PATH\|HOST)\s=/mi', $data, $matches, \PREG_OFFSET_CAPTURE)) {
110	$data = substr($data, 0, $matches[0][1]);
111	}
112
113	$content .= $data."\n";
114	}
115
116	// Merge loaded settings into our ini content, if it is valid
117	$config = parse_ini_string($content);
118	$loaded = ini_get_all(null, false);
119
120	if (false === $config \|\| false === $loaded) {
121	throw new RuntimeException('Unable to parse ini data.');
122	}
123
124	$content .= $this->mergeLoadedConfig($loaded, $config);
125
126	// Work-around for https://bugs.php.net/bug.php?id=75932
127	$content .= "opcache.enable_cli=0\n";
128
129	if (false === @file_put_contents($tmpfile, $content)) {
130	throw new RuntimeException('Unable to write temporary ini file.');
131	}
132
133	return $tmpfile;
134	}
135
136	private function mergeLoadedConfig(array $loadedConfig, array $iniConfig): string
137	{
138	$content = '';
139
140	foreach ($loadedConfig as $name => $value) {
141	if (!\is_string($value)) {
142	continue;
143	}
144
145	if (!isset($iniConfig[$name]) \|\| $iniConfig[$name] !== $value) {
146	// Double-quote escape each value
147	$content .= $name.'="'.addcslashes($value, '\\"')."\"\n";
148	}
149	}
150
151	return $content;
152	}
153
154	private function getAllIniFiles(): array
155	{
156	$paths = [(string) php_ini_loaded_file()];
157
158	if (false !== $scanned = php_ini_scanned_files()) {
159	$paths = array_merge($paths, array_map('trim', explode(',', $scanned)));
160	}
161
162	return $paths;
163	}
164	}
165