/vendor/symfony/process/Pipes/AbstractPipes.php |
@@ -0,0 +1,169 @@ |
<?php |
|
/* |
* This file is part of the Symfony package. |
* |
* (c) Fabien Potencier <fabien@symfony.com> |
* |
* For the full copyright and license information, please view the LICENSE |
* file that was distributed with this source code. |
*/ |
|
namespace Symfony\Component\Process\Pipes; |
|
use Symfony\Component\Process\Exception\InvalidArgumentException; |
|
/** |
* @author Romain Neutron <imprec@gmail.com> |
* |
* @internal |
*/ |
abstract class AbstractPipes implements PipesInterface |
{ |
/** @var array */ |
public $pipes = array(); |
|
/** @var string */ |
private $inputBuffer = ''; |
/** @var resource|scalar|\Iterator|null */ |
private $input; |
/** @var bool */ |
private $blocked = true; |
|
public function __construct($input) |
{ |
if (is_resource($input) || $input instanceof \Iterator) { |
$this->input = $input; |
} elseif (is_string($input)) { |
$this->inputBuffer = $input; |
} else { |
$this->inputBuffer = (string) $input; |
} |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function close() |
{ |
foreach ($this->pipes as $pipe) { |
fclose($pipe); |
} |
$this->pipes = array(); |
} |
|
/** |
* Returns true if a system call has been interrupted. |
* |
* @return bool |
*/ |
protected function hasSystemCallBeenInterrupted() |
{ |
$lastError = error_get_last(); |
|
// stream_select returns false when the `select` system call is interrupted by an incoming signal |
return isset($lastError['message']) && false !== stripos($lastError['message'], 'interrupted system call'); |
} |
|
/** |
* Unblocks streams. |
*/ |
protected function unblock() |
{ |
if (!$this->blocked) { |
return; |
} |
|
foreach ($this->pipes as $pipe) { |
stream_set_blocking($pipe, 0); |
} |
if (is_resource($this->input)) { |
stream_set_blocking($this->input, 0); |
} |
|
$this->blocked = false; |
} |
|
/** |
* Writes input to stdin. |
* |
* @throws InvalidArgumentException When an input iterator yields a non supported value |
*/ |
protected function write() |
{ |
if (!isset($this->pipes[0])) { |
return; |
} |
$input = $this->input; |
|
if ($input instanceof \Iterator) { |
if (!$input->valid()) { |
$input = null; |
} elseif (is_resource($input = $input->current())) { |
stream_set_blocking($input, 0); |
} elseif (!isset($this->inputBuffer[0])) { |
if (!is_string($input)) { |
if (!is_scalar($input)) { |
throw new InvalidArgumentException(sprintf('%s yielded a value of type "%s", but only scalars and stream resources are supported', get_class($this->input), gettype($input))); |
} |
$input = (string) $input; |
} |
$this->inputBuffer = $input; |
$this->input->next(); |
$input = null; |
} else { |
$input = null; |
} |
} |
|
$r = $e = array(); |
$w = array($this->pipes[0]); |
|
// let's have a look if something changed in streams |
if (false === $n = @stream_select($r, $w, $e, 0, 0)) { |
return; |
} |
|
foreach ($w as $stdin) { |
if (isset($this->inputBuffer[0])) { |
$written = fwrite($stdin, $this->inputBuffer); |
$this->inputBuffer = substr($this->inputBuffer, $written); |
if (isset($this->inputBuffer[0])) { |
return array($this->pipes[0]); |
} |
} |
|
if ($input) { |
for (;;) { |
$data = fread($input, self::CHUNK_SIZE); |
if (!isset($data[0])) { |
break; |
} |
$written = fwrite($stdin, $data); |
$data = substr($data, $written); |
if (isset($data[0])) { |
$this->inputBuffer = $data; |
|
return array($this->pipes[0]); |
} |
} |
if (feof($input)) { |
if ($this->input instanceof \Iterator) { |
$this->input->next(); |
} else { |
$this->input = null; |
} |
} |
} |
} |
|
// no input to read on resource, buffer is empty |
if (!isset($this->inputBuffer[0]) && !($this->input instanceof \Iterator ? $this->input->valid() : $this->input)) { |
$this->input = null; |
fclose($this->pipes[0]); |
unset($this->pipes[0]); |
} elseif (!$w) { |
return array($this->pipes[0]); |
} |
} |
} |
/vendor/symfony/process/Pipes/PipesInterface.php |
@@ -0,0 +1,67 @@ |
<?php |
|
/* |
* This file is part of the Symfony package. |
* |
* (c) Fabien Potencier <fabien@symfony.com> |
* |
* For the full copyright and license information, please view the LICENSE |
* file that was distributed with this source code. |
*/ |
|
namespace Symfony\Component\Process\Pipes; |
|
/** |
* PipesInterface manages descriptors and pipes for the use of proc_open. |
* |
* @author Romain Neutron <imprec@gmail.com> |
* |
* @internal |
*/ |
interface PipesInterface |
{ |
const CHUNK_SIZE = 16384; |
|
/** |
* Returns an array of descriptors for the use of proc_open. |
* |
* @return array |
*/ |
public function getDescriptors(); |
|
/** |
* Returns an array of filenames indexed by their related stream in case these pipes use temporary files. |
* |
* @return string[] |
*/ |
public function getFiles(); |
|
/** |
* Reads data in file handles and pipes. |
* |
* @param bool $blocking Whether to use blocking calls or not |
* @param bool $close Whether to close pipes if they've reached EOF |
* |
* @return string[] An array of read data indexed by their fd |
*/ |
public function readAndWrite($blocking, $close = false); |
|
/** |
* Returns if the current state has open file handles or pipes. |
* |
* @return bool |
*/ |
public function areOpen(); |
|
/** |
* Returns if pipes are able to read output. |
* |
* @return bool |
*/ |
public function haveReadSupport(); |
|
/** |
* Closes file handles and pipes. |
*/ |
public function close(); |
} |
/vendor/symfony/process/Pipes/UnixPipes.php |
@@ -0,0 +1,153 @@ |
<?php |
|
/* |
* This file is part of the Symfony package. |
* |
* (c) Fabien Potencier <fabien@symfony.com> |
* |
* For the full copyright and license information, please view the LICENSE |
* file that was distributed with this source code. |
*/ |
|
namespace Symfony\Component\Process\Pipes; |
|
use Symfony\Component\Process\Process; |
|
/** |
* UnixPipes implementation uses unix pipes as handles. |
* |
* @author Romain Neutron <imprec@gmail.com> |
* |
* @internal |
*/ |
class UnixPipes extends AbstractPipes |
{ |
/** @var bool */ |
private $ttyMode; |
/** @var bool */ |
private $ptyMode; |
/** @var bool */ |
private $haveReadSupport; |
|
public function __construct($ttyMode, $ptyMode, $input, $haveReadSupport) |
{ |
$this->ttyMode = (bool) $ttyMode; |
$this->ptyMode = (bool) $ptyMode; |
$this->haveReadSupport = (bool) $haveReadSupport; |
|
parent::__construct($input); |
} |
|
public function __destruct() |
{ |
$this->close(); |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function getDescriptors() |
{ |
if (!$this->haveReadSupport) { |
$nullstream = fopen('/dev/null', 'c'); |
|
return array( |
array('pipe', 'r'), |
$nullstream, |
$nullstream, |
); |
} |
|
if ($this->ttyMode) { |
return array( |
array('file', '/dev/tty', 'r'), |
array('file', '/dev/tty', 'w'), |
array('file', '/dev/tty', 'w'), |
); |
} |
|
if ($this->ptyMode && Process::isPtySupported()) { |
return array( |
array('pty'), |
array('pty'), |
array('pty'), |
); |
} |
|
return array( |
array('pipe', 'r'), |
array('pipe', 'w'), // stdout |
array('pipe', 'w'), // stderr |
); |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function getFiles() |
{ |
return array(); |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function readAndWrite($blocking, $close = false) |
{ |
$this->unblock(); |
$w = $this->write(); |
|
$read = $e = array(); |
$r = $this->pipes; |
unset($r[0]); |
|
// let's have a look if something changed in streams |
if (($r || $w) && false === $n = @stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) { |
// if a system call has been interrupted, forget about it, let's try again |
// otherwise, an error occurred, let's reset pipes |
if (!$this->hasSystemCallBeenInterrupted()) { |
$this->pipes = array(); |
} |
|
return $read; |
} |
|
foreach ($r as $pipe) { |
// prior PHP 5.4 the array passed to stream_select is modified and |
// lose key association, we have to find back the key |
$read[$type = array_search($pipe, $this->pipes, true)] = ''; |
|
do { |
$data = fread($pipe, self::CHUNK_SIZE); |
$read[$type] .= $data; |
} while (isset($data[0]) && ($close || isset($data[self::CHUNK_SIZE - 1]))); |
|
if (!isset($read[$type][0])) { |
unset($read[$type]); |
} |
|
if ($close && feof($pipe)) { |
fclose($pipe); |
unset($this->pipes[$type]); |
} |
} |
|
return $read; |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function haveReadSupport() |
{ |
return $this->haveReadSupport; |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function areOpen() |
{ |
return (bool) $this->pipes; |
} |
} |
/vendor/symfony/process/Pipes/WindowsPipes.php |
@@ -0,0 +1,200 @@ |
<?php |
|
/* |
* This file is part of the Symfony package. |
* |
* (c) Fabien Potencier <fabien@symfony.com> |
* |
* For the full copyright and license information, please view the LICENSE |
* file that was distributed with this source code. |
*/ |
|
namespace Symfony\Component\Process\Pipes; |
|
use Symfony\Component\Process\Process; |
use Symfony\Component\Process\Exception\RuntimeException; |
|
/** |
* WindowsPipes implementation uses temporary files as handles. |
* |
* @see https://bugs.php.net/bug.php?id=51800 |
* @see https://bugs.php.net/bug.php?id=65650 |
* |
* @author Romain Neutron <imprec@gmail.com> |
* |
* @internal |
*/ |
class WindowsPipes extends AbstractPipes |
{ |
/** @var array */ |
private $files = array(); |
/** @var array */ |
private $fileHandles = array(); |
/** @var array */ |
private $readBytes = array( |
Process::STDOUT => 0, |
Process::STDERR => 0, |
); |
/** @var bool */ |
private $haveReadSupport; |
|
public function __construct($input, $haveReadSupport) |
{ |
$this->haveReadSupport = (bool) $haveReadSupport; |
|
if ($this->haveReadSupport) { |
// Fix for PHP bug #51800: reading from STDOUT pipe hangs forever on Windows if the output is too big. |
// Workaround for this problem is to use temporary files instead of pipes on Windows platform. |
// |
// @see https://bugs.php.net/bug.php?id=51800 |
$pipes = array( |
Process::STDOUT => Process::OUT, |
Process::STDERR => Process::ERR, |
); |
$tmpCheck = false; |
$tmpDir = sys_get_temp_dir(); |
$lastError = 'unknown reason'; |
set_error_handler(function ($type, $msg) use (&$lastError) { $lastError = $msg; }); |
for ($i = 0;; ++$i) { |
foreach ($pipes as $pipe => $name) { |
$file = sprintf('%s\\sf_proc_%02X.%s', $tmpDir, $i, $name); |
if (file_exists($file) && !unlink($file)) { |
continue 2; |
} |
$h = fopen($file, 'xb'); |
if (!$h) { |
$error = $lastError; |
if ($tmpCheck || $tmpCheck = unlink(tempnam(false, 'sf_check_'))) { |
continue; |
} |
restore_error_handler(); |
throw new RuntimeException(sprintf('A temporary file could not be opened to write the process output: %s', $error)); |
} |
if (!$h || !$this->fileHandles[$pipe] = fopen($file, 'rb')) { |
continue 2; |
} |
if (isset($this->files[$pipe])) { |
unlink($this->files[$pipe]); |
} |
$this->files[$pipe] = $file; |
} |
break; |
} |
restore_error_handler(); |
} |
|
parent::__construct($input); |
} |
|
public function __destruct() |
{ |
$this->close(); |
$this->removeFiles(); |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function getDescriptors() |
{ |
if (!$this->haveReadSupport) { |
$nullstream = fopen('NUL', 'c'); |
|
return array( |
array('pipe', 'r'), |
$nullstream, |
$nullstream, |
); |
} |
|
// We're not using pipe on Windows platform as it hangs (https://bugs.php.net/bug.php?id=51800) |
// We're not using file handles as it can produce corrupted output https://bugs.php.net/bug.php?id=65650 |
// So we redirect output within the commandline and pass the nul device to the process |
return array( |
array('pipe', 'r'), |
array('file', 'NUL', 'w'), |
array('file', 'NUL', 'w'), |
); |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function getFiles() |
{ |
return $this->files; |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function readAndWrite($blocking, $close = false) |
{ |
$this->unblock(); |
$w = $this->write(); |
$read = $r = $e = array(); |
|
if ($blocking) { |
if ($w) { |
@stream_select($r, $w, $e, 0, Process::TIMEOUT_PRECISION * 1E6); |
} elseif ($this->fileHandles) { |
usleep(Process::TIMEOUT_PRECISION * 1E6); |
} |
} |
foreach ($this->fileHandles as $type => $fileHandle) { |
$data = stream_get_contents($fileHandle, -1, $this->readBytes[$type]); |
|
if (isset($data[0])) { |
$this->readBytes[$type] += strlen($data); |
$read[$type] = $data; |
} |
if ($close) { |
fclose($fileHandle); |
unset($this->fileHandles[$type]); |
} |
} |
|
return $read; |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function haveReadSupport() |
{ |
return $this->haveReadSupport; |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function areOpen() |
{ |
return $this->pipes && $this->fileHandles; |
} |
|
/** |
* {@inheritdoc} |
*/ |
public function close() |
{ |
parent::close(); |
foreach ($this->fileHandles as $handle) { |
fclose($handle); |
} |
$this->fileHandles = array(); |
} |
|
/** |
* Removes temporary files. |
*/ |
private function removeFiles() |
{ |
foreach ($this->files as $filename) { |
if (file_exists($filename)) { |
@unlink($filename); |
} |
} |
$this->files = array(); |
} |
} |