| 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 WP_DEFENDER_VENDOR\Symfony\Component\Process\Pipes; |
| 13 |
|
| 14 |
use WP_DEFENDER_VENDOR\Symfony\Component\Process\Process; |
| 15 |
|
| 16 |
/** |
| 17 |
* UnixPipes implementation uses unix pipes as handles. |
| 18 |
* |
| 19 |
* @author Romain Neutron <[email protected]> |
| 20 |
* |
| 21 |
* @internal |
| 22 |
*/ |
| 23 |
class UnixPipes extends AbstractPipes |
| 24 |
{ |
| 25 |
private $ttyMode; |
| 26 |
private $ptyMode; |
| 27 |
private $haveReadSupport; |
| 28 |
|
| 29 |
public function __construct(?bool $ttyMode, bool $ptyMode, $input, bool $haveReadSupport) |
| 30 |
{ |
| 31 |
$this->ttyMode = $ttyMode; |
| 32 |
$this->ptyMode = $ptyMode; |
| 33 |
$this->haveReadSupport = $haveReadSupport; |
| 34 |
|
| 35 |
parent::__construct($input); |
| 36 |
} |
| 37 |
|
| 38 |
public function __sleep(): array |
| 39 |
{ |
| 40 |
throw new \BadMethodCallException('Cannot serialize '.__CLASS__); |
| 41 |
} |
| 42 |
|
| 43 |
public function __wakeup() |
| 44 |
{ |
| 45 |
throw new \BadMethodCallException('Cannot unserialize '.__CLASS__); |
| 46 |
} |
| 47 |
|
| 48 |
public function __destruct() |
| 49 |
{ |
| 50 |
$this->close(); |
| 51 |
} |
| 52 |
|
| 53 |
/** |
| 54 |
* {@inheritdoc} |
| 55 |
*/ |
| 56 |
public function getDescriptors(): array |
| 57 |
{ |
| 58 |
if (!$this->haveReadSupport) { |
| 59 |
$nullstream = fopen('/dev/null', 'c'); |
| 60 |
|
| 61 |
return [ |
| 62 |
['pipe', 'r'], |
| 63 |
$nullstream, |
| 64 |
$nullstream, |
| 65 |
]; |
| 66 |
} |
| 67 |
|
| 68 |
if ($this->ttyMode) { |
| 69 |
return [ |
| 70 |
['file', '/dev/tty', 'r'], |
| 71 |
['file', '/dev/tty', 'w'], |
| 72 |
['file', '/dev/tty', 'w'], |
| 73 |
]; |
| 74 |
} |
| 75 |
|
| 76 |
if ($this->ptyMode && Process::isPtySupported()) { |
| 77 |
return [ |
| 78 |
['pty'], |
| 79 |
['pty'], |
| 80 |
['pty'], |
| 81 |
]; |
| 82 |
} |
| 83 |
|
| 84 |
return [ |
| 85 |
['pipe', 'r'], |
| 86 |
['pipe', 'w'], // stdout |
| 87 |
['pipe', 'w'], // stderr |
| 88 |
]; |
| 89 |
} |
| 90 |
|
| 91 |
/** |
| 92 |
* {@inheritdoc} |
| 93 |
*/ |
| 94 |
public function getFiles(): array |
| 95 |
{ |
| 96 |
return []; |
| 97 |
} |
| 98 |
|
| 99 |
/** |
| 100 |
* {@inheritdoc} |
| 101 |
*/ |
| 102 |
public function readAndWrite(bool $blocking, bool $close = false): array |
| 103 |
{ |
| 104 |
$this->unblock(); |
| 105 |
$w = $this->write(); |
| 106 |
|
| 107 |
$read = $e = []; |
| 108 |
$r = $this->pipes; |
| 109 |
unset($r[0]); |
| 110 |
|
| 111 |
// let's have a look if something changed in streams |
| 112 |
set_error_handler([$this, 'handleError']); |
| 113 |
if (($r || $w) && false === stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) { |
| 114 |
restore_error_handler(); |
| 115 |
// if a system call has been interrupted, forget about it, let's try again |
| 116 |
// otherwise, an error occurred, let's reset pipes |
| 117 |
if (!$this->hasSystemCallBeenInterrupted()) { |
| 118 |
$this->pipes = []; |
| 119 |
} |
| 120 |
|
| 121 |
return $read; |
| 122 |
} |
| 123 |
restore_error_handler(); |
| 124 |
|
| 125 |
foreach ($r as $pipe) { |
| 126 |
// prior PHP 5.4 the array passed to stream_select is modified and |
| 127 |
// lose key association, we have to find back the key |
| 128 |
$read[$type = array_search($pipe, $this->pipes, true)] = ''; |
| 129 |
|
| 130 |
do { |
| 131 |
$data = @fread($pipe, self::CHUNK_SIZE); |
| 132 |
$read[$type] .= $data; |
| 133 |
} while (isset($data[0]) && ($close || isset($data[self::CHUNK_SIZE - 1]))); |
| 134 |
|
| 135 |
if (!isset($read[$type][0])) { |
| 136 |
unset($read[$type]); |
| 137 |
} |
| 138 |
|
| 139 |
if ($close && feof($pipe)) { |
| 140 |
fclose($pipe); |
| 141 |
unset($this->pipes[$type]); |
| 142 |
} |
| 143 |
} |
| 144 |
|
| 145 |
return $read; |
| 146 |
} |
| 147 |
|
| 148 |
/** |
| 149 |
* {@inheritdoc} |
| 150 |
*/ |
| 151 |
public function haveReadSupport(): bool |
| 152 |
{ |
| 153 |
return $this->haveReadSupport; |
| 154 |
} |
| 155 |
|
| 156 |
/** |
| 157 |
* {@inheritdoc} |
| 158 |
*/ |
| 159 |
public function areOpen(): bool |
| 160 |
{ |
| 161 |
return (bool) $this->pipes; |
| 162 |
} |
| 163 |
} |
| 164 |
|
