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<?php
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Util\PHP;
use PHPUnit\Framework\Exception;
/**
* Default utility for PHP sub-processes.
*/
class DefaultPhpProcess extends AbstractPhpProcess
{
/**
* @var string
*/
protected $tempFile;
/**
* @var bool
*/
protected $useTempFile = false;
/**
* Runs a single job (PHP code) using a separate PHP process.
*
* @param string $job
* @param array $settings
*
* @return array<string, string>
*
* @throws Exception
*/
public function runJob($job, array $settings = [])
{
if ($this->useTempFile || $this->stdin) {
if (!($this->tempFile = \tempnam(\sys_get_temp_dir(), 'PHPUnit')) ||
\file_put_contents($this->tempFile, $job) === false) {
throw new Exception(
'Unable to write temporary file'
);
}
$job = $this->stdin;
}
return $this->runProcess($job, $settings);
}
/**
* Returns an array of file handles to be used in place of pipes
*
* @return array
*/
protected function getHandles()
{
return [];
}
/**
* Handles creating the child process and returning the STDOUT and STDERR
*
* @param string $job
* @param array $settings
*
* @return array<string, string>
*
* @throws Exception
*/
protected function runProcess($job, $settings)
{
$handles = $this->getHandles();
$env = null;
if ($this->env) {
$env = $_SERVER ?? [];
unset($env['argv'], $env['argc']);
$env = \array_merge($env, $this->env);
foreach ($env as $envKey => $envVar) {
if (\is_array($envVar)) {
unset($env[$envKey]);
}
}
}
$pipeSpec = [
0 => $handles[0] ?? ['pipe', 'r'],
1 => $handles[1] ?? ['pipe', 'w'],
2 => $handles[2] ?? ['pipe', 'w'],
];
$process = \proc_open(
$this->getCommand($settings, $this->tempFile),
$pipeSpec,
$pipes,
null,
$env
);
if (!\is_resource($process)) {
throw new Exception(
'Unable to spawn worker process'
);
}
if ($job) {
$this->process($pipes[0], $job);
}
\fclose($pipes[0]);
if ($this->timeout) {
$stderr = $stdout = '';
unset($pipes[0]);
while (true) {
$r = $pipes;
$w = null;
$e = null;
$n = @\stream_select($r, $w, $e, $this->timeout);
if ($n === false) {
break;
} elseif ($n === 0) {
\proc_terminate($process, 9);
throw new Exception(
\sprintf(
'Job execution aborted after %d seconds',
$this->timeout
)
);
} elseif ($n > 0) {
foreach ($r as $pipe) {
$pipeOffset = 0;
foreach ($pipes as $i => $origPipe) {
if ($pipe == $origPipe) {
$pipeOffset = $i;
break;
}
}
if (!$pipeOffset) {
break;
}
$line = \fread($pipe, 8192);
if (\strlen($line) == 0) {
\fclose($pipes[$pipeOffset]);
unset($pipes[$pipeOffset]);
} else {
if ($pipeOffset == 1) {
$stdout .= $line;
} else {
$stderr .= $line;
}
}
}
if (empty($pipes)) {
break;
}
}
}
} else {
if (isset($pipes[1])) {
$stdout = \stream_get_contents($pipes[1]);
\fclose($pipes[1]);
}
if (isset($pipes[2])) {
$stderr = \stream_get_contents($pipes[2]);
\fclose($pipes[2]);
}
}
if (isset($handles[1])) {
\rewind($handles[1]);
$stdout = \stream_get_contents($handles[1]);
\fclose($handles[1]);
}
if (isset($handles[2])) {
\rewind($handles[2]);
$stderr = \stream_get_contents($handles[2]);
\fclose($handles[2]);
}
\proc_close($process);
$this->cleanup();
return ['stdout' => $stdout, 'stderr' => $stderr];
}
/**
* @param resource $pipe
* @param string $job
*
* @throws Exception
*/
protected function process($pipe, $job)
{
\fwrite($pipe, $job);
}
protected function cleanup()
{
if ($this->tempFile) {
\unlink($this->tempFile);
}
}
}