Add upstream

This commit is contained in:
root
2019-10-24 00:12:05 +02:00
parent 85d41e4216
commit ac980f592c
3504 changed files with 1049983 additions and 29971 deletions

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CHANGELOG
=========
2.5.0
-----
* added Debug\TraceableEventDispatcher (originally in HttpKernel)
* changed Debug\TraceableEventDispatcherInterface to extend EventDispatcherInterface
* added RegisterListenersPass (originally in HttpKernel)
2.1.0
-----
* added TraceableEventDispatcherInterface
* added ContainerAwareEventDispatcher
* added a reference to the EventDispatcher on the Event
* added a reference to the Event name on the event
* added fluid interface to the dispatch() method which now returns the Event
object
* added GenericEvent event class
* added the possibility for subscribers to subscribe several times for the
same event
* added ImmutableEventDispatcher

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<?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\EventDispatcher;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Lazily loads listeners and subscribers from the dependency injection
* container.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Jordan Alliot <jordan.alliot@gmail.com>
*/
class ContainerAwareEventDispatcher extends EventDispatcher
{
private $container;
/**
* The service IDs of the event listeners and subscribers.
*/
private $listenerIds = array();
/**
* The services registered as listeners.
*/
private $listeners = array();
public function __construct(ContainerInterface $container)
{
$this->container = $container;
}
/**
* Adds a service as event listener.
*
* @param string $eventName Event for which the listener is added
* @param array $callback The service ID of the listener service & the method
* name that has to be called
* @param int $priority The higher this value, the earlier an event listener
* will be triggered in the chain.
* Defaults to 0.
*
* @throws \InvalidArgumentException
*/
public function addListenerService($eventName, $callback, $priority = 0)
{
if (!\is_array($callback) || 2 !== \count($callback)) {
throw new \InvalidArgumentException('Expected an array("service", "method") argument');
}
$this->listenerIds[$eventName][] = array($callback[0], $callback[1], $priority);
}
public function removeListener($eventName, $listener)
{
$this->lazyLoad($eventName);
if (isset($this->listenerIds[$eventName])) {
foreach ($this->listenerIds[$eventName] as $i => $args) {
list($serviceId, $method) = $args;
$key = $serviceId.'.'.$method;
if (isset($this->listeners[$eventName][$key]) && $listener === array($this->listeners[$eventName][$key], $method)) {
unset($this->listeners[$eventName][$key]);
if (empty($this->listeners[$eventName])) {
unset($this->listeners[$eventName]);
}
unset($this->listenerIds[$eventName][$i]);
if (empty($this->listenerIds[$eventName])) {
unset($this->listenerIds[$eventName]);
}
}
}
}
parent::removeListener($eventName, $listener);
}
/**
* {@inheritdoc}
*/
public function hasListeners($eventName = null)
{
if (null === $eventName) {
return $this->listenerIds || $this->listeners || parent::hasListeners();
}
if (isset($this->listenerIds[$eventName])) {
return true;
}
return parent::hasListeners($eventName);
}
/**
* {@inheritdoc}
*/
public function getListeners($eventName = null)
{
if (null === $eventName) {
foreach ($this->listenerIds as $serviceEventName => $args) {
$this->lazyLoad($serviceEventName);
}
} else {
$this->lazyLoad($eventName);
}
return parent::getListeners($eventName);
}
/**
* {@inheritdoc}
*/
public function getListenerPriority($eventName, $listener)
{
$this->lazyLoad($eventName);
return parent::getListenerPriority($eventName, $listener);
}
/**
* Adds a service as event subscriber.
*
* @param string $serviceId The service ID of the subscriber service
* @param string $class The service's class name (which must implement EventSubscriberInterface)
*/
public function addSubscriberService($serviceId, $class)
{
foreach ($class::getSubscribedEvents() as $eventName => $params) {
if (\is_string($params)) {
$this->listenerIds[$eventName][] = array($serviceId, $params, 0);
} elseif (\is_string($params[0])) {
$this->listenerIds[$eventName][] = array($serviceId, $params[0], isset($params[1]) ? $params[1] : 0);
} else {
foreach ($params as $listener) {
$this->listenerIds[$eventName][] = array($serviceId, $listener[0], isset($listener[1]) ? $listener[1] : 0);
}
}
}
}
public function getContainer()
{
return $this->container;
}
/**
* Lazily loads listeners for this event from the dependency injection
* container.
*
* @param string $eventName The name of the event to dispatch. The name of
* the event is the name of the method that is
* invoked on listeners.
*/
protected function lazyLoad($eventName)
{
if (isset($this->listenerIds[$eventName])) {
foreach ($this->listenerIds[$eventName] as $args) {
list($serviceId, $method, $priority) = $args;
$listener = $this->container->get($serviceId);
$key = $serviceId.'.'.$method;
if (!isset($this->listeners[$eventName][$key])) {
$this->addListener($eventName, array($listener, $method), $priority);
} elseif ($this->listeners[$eventName][$key] !== $listener) {
parent::removeListener($eventName, array($this->listeners[$eventName][$key], $method));
$this->addListener($eventName, array($listener, $method), $priority);
}
$this->listeners[$eventName][$key] = $listener;
}
}
}
}

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<?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\EventDispatcher\Debug;
use Psr\Log\LoggerInterface;
use Symfony\Component\EventDispatcher\Event;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Stopwatch\Stopwatch;
/**
* Collects some data about event listeners.
*
* This event dispatcher delegates the dispatching to another one.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class TraceableEventDispatcher implements TraceableEventDispatcherInterface
{
protected $logger;
protected $stopwatch;
private $called;
private $dispatcher;
private $wrappedListeners;
public function __construct(EventDispatcherInterface $dispatcher, Stopwatch $stopwatch, LoggerInterface $logger = null)
{
$this->dispatcher = $dispatcher;
$this->stopwatch = $stopwatch;
$this->logger = $logger;
$this->called = array();
$this->wrappedListeners = array();
}
/**
* {@inheritdoc}
*/
public function addListener($eventName, $listener, $priority = 0)
{
$this->dispatcher->addListener($eventName, $listener, $priority);
}
/**
* {@inheritdoc}
*/
public function addSubscriber(EventSubscriberInterface $subscriber)
{
$this->dispatcher->addSubscriber($subscriber);
}
/**
* {@inheritdoc}
*/
public function removeListener($eventName, $listener)
{
if (isset($this->wrappedListeners[$eventName])) {
foreach ($this->wrappedListeners[$eventName] as $index => $wrappedListener) {
if ($wrappedListener->getWrappedListener() === $listener) {
$listener = $wrappedListener;
unset($this->wrappedListeners[$eventName][$index]);
break;
}
}
}
return $this->dispatcher->removeListener($eventName, $listener);
}
/**
* {@inheritdoc}
*/
public function removeSubscriber(EventSubscriberInterface $subscriber)
{
return $this->dispatcher->removeSubscriber($subscriber);
}
/**
* {@inheritdoc}
*/
public function getListeners($eventName = null)
{
return $this->dispatcher->getListeners($eventName);
}
/**
* {@inheritdoc}
*/
public function getListenerPriority($eventName, $listener)
{
if (!method_exists($this->dispatcher, 'getListenerPriority')) {
return 0;
}
return $this->dispatcher->getListenerPriority($eventName, $listener);
}
/**
* {@inheritdoc}
*/
public function hasListeners($eventName = null)
{
return $this->dispatcher->hasListeners($eventName);
}
/**
* {@inheritdoc}
*/
public function dispatch($eventName, Event $event = null)
{
if (null === $event) {
$event = new Event();
}
if (null !== $this->logger && $event->isPropagationStopped()) {
$this->logger->debug(sprintf('The "%s" event is already stopped. No listeners have been called.', $eventName));
}
$this->preProcess($eventName);
$this->preDispatch($eventName, $event);
$e = $this->stopwatch->start($eventName, 'section');
$this->dispatcher->dispatch($eventName, $event);
if ($e->isStarted()) {
$e->stop();
}
$this->postDispatch($eventName, $event);
$this->postProcess($eventName);
return $event;
}
/**
* {@inheritdoc}
*/
public function getCalledListeners()
{
$called = array();
foreach ($this->called as $eventName => $listeners) {
foreach ($listeners as $listener) {
$info = $this->getListenerInfo($listener->getWrappedListener(), $eventName);
$called[$eventName.'.'.$info['pretty']] = $info;
}
}
return $called;
}
/**
* {@inheritdoc}
*/
public function getNotCalledListeners()
{
try {
$allListeners = $this->getListeners();
} catch (\Exception $e) {
if (null !== $this->logger) {
$this->logger->info('An exception was thrown while getting the uncalled listeners.', array('exception' => $e));
}
// unable to retrieve the uncalled listeners
return array();
}
$notCalled = array();
foreach ($allListeners as $eventName => $listeners) {
foreach ($listeners as $listener) {
$called = false;
if (isset($this->called[$eventName])) {
foreach ($this->called[$eventName] as $l) {
if ($l->getWrappedListener() === $listener) {
$called = true;
break;
}
}
}
if (!$called) {
$info = $this->getListenerInfo($listener, $eventName);
$notCalled[$eventName.'.'.$info['pretty']] = $info;
}
}
}
uasort($notCalled, array($this, 'sortListenersByPriority'));
return $notCalled;
}
/**
* Proxies all method calls to the original event dispatcher.
*
* @param string $method The method name
* @param array $arguments The method arguments
*
* @return mixed
*/
public function __call($method, $arguments)
{
return \call_user_func_array(array($this->dispatcher, $method), $arguments);
}
/**
* Called before dispatching the event.
*
* @param string $eventName The event name
* @param Event $event The event
*/
protected function preDispatch($eventName, Event $event)
{
}
/**
* Called after dispatching the event.
*
* @param string $eventName The event name
* @param Event $event The event
*/
protected function postDispatch($eventName, Event $event)
{
}
private function preProcess($eventName)
{
foreach ($this->dispatcher->getListeners($eventName) as $listener) {
$info = $this->getListenerInfo($listener, $eventName);
$name = isset($info['class']) ? $info['class'] : $info['type'];
$wrappedListener = new WrappedListener($listener, $name, $this->stopwatch, $this);
$this->wrappedListeners[$eventName][] = $wrappedListener;
$this->dispatcher->removeListener($eventName, $listener);
$this->dispatcher->addListener($eventName, $wrappedListener, $info['priority']);
}
}
private function postProcess($eventName)
{
unset($this->wrappedListeners[$eventName]);
$skipped = false;
foreach ($this->dispatcher->getListeners($eventName) as $listener) {
if (!$listener instanceof WrappedListener) { // #12845: a new listener was added during dispatch.
continue;
}
// Unwrap listener
$priority = $this->getListenerPriority($eventName, $listener);
$this->dispatcher->removeListener($eventName, $listener);
$this->dispatcher->addListener($eventName, $listener->getWrappedListener(), $priority);
$info = $this->getListenerInfo($listener->getWrappedListener(), $eventName);
if ($listener->wasCalled()) {
if (null !== $this->logger) {
$this->logger->debug(sprintf('Notified event "%s" to listener "%s".', $eventName, $info['pretty']));
}
if (!isset($this->called[$eventName])) {
$this->called[$eventName] = new \SplObjectStorage();
}
$this->called[$eventName]->attach($listener);
}
if (null !== $this->logger && $skipped) {
$this->logger->debug(sprintf('Listener "%s" was not called for event "%s".', $info['pretty'], $eventName));
}
if ($listener->stoppedPropagation()) {
if (null !== $this->logger) {
$this->logger->debug(sprintf('Listener "%s" stopped propagation of the event "%s".', $info['pretty'], $eventName));
}
$skipped = true;
}
}
}
/**
* Returns information about the listener.
*
* @param object $listener The listener
* @param string $eventName The event name
*
* @return array Information about the listener
*/
private function getListenerInfo($listener, $eventName)
{
$info = array(
'event' => $eventName,
'priority' => $this->getListenerPriority($eventName, $listener),
);
// unwrap for correct listener info
if ($listener instanceof WrappedListener) {
$listener = $listener->getWrappedListener();
}
if ($listener instanceof \Closure) {
$info += array(
'type' => 'Closure',
'pretty' => 'closure',
);
} elseif (\is_string($listener)) {
try {
$r = new \ReflectionFunction($listener);
$file = $r->getFileName();
$line = $r->getStartLine();
} catch (\ReflectionException $e) {
$file = null;
$line = null;
}
$info += array(
'type' => 'Function',
'function' => $listener,
'file' => $file,
'line' => $line,
'pretty' => $listener,
);
} elseif (\is_array($listener) || (\is_object($listener) && \is_callable($listener))) {
if (!\is_array($listener)) {
$listener = array($listener, '__invoke');
}
$class = \is_object($listener[0]) ? \get_class($listener[0]) : $listener[0];
try {
$r = new \ReflectionMethod($class, $listener[1]);
$file = $r->getFileName();
$line = $r->getStartLine();
} catch (\ReflectionException $e) {
$file = null;
$line = null;
}
$info += array(
'type' => 'Method',
'class' => $class,
'method' => $listener[1],
'file' => $file,
'line' => $line,
'pretty' => $class.'::'.$listener[1],
);
}
return $info;
}
private function sortListenersByPriority($a, $b)
{
if (\is_int($a['priority']) && !\is_int($b['priority'])) {
return 1;
}
if (!\is_int($a['priority']) && \is_int($b['priority'])) {
return -1;
}
if ($a['priority'] === $b['priority']) {
return 0;
}
if ($a['priority'] > $b['priority']) {
return -1;
}
return 1;
}
}

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<?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\EventDispatcher\Debug;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
interface TraceableEventDispatcherInterface extends EventDispatcherInterface
{
/**
* Gets the called listeners.
*
* @return array An array of called listeners
*/
public function getCalledListeners();
/**
* Gets the not called listeners.
*
* @return array An array of not called listeners
*/
public function getNotCalledListeners();
}

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<?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\EventDispatcher\Debug;
use Symfony\Component\EventDispatcher\Event;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\Stopwatch\Stopwatch;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
class WrappedListener
{
private $listener;
private $name;
private $called;
private $stoppedPropagation;
private $stopwatch;
private $dispatcher;
public function __construct($listener, $name, Stopwatch $stopwatch, EventDispatcherInterface $dispatcher = null)
{
$this->listener = $listener;
$this->name = $name;
$this->stopwatch = $stopwatch;
$this->dispatcher = $dispatcher;
$this->called = false;
$this->stoppedPropagation = false;
}
public function getWrappedListener()
{
return $this->listener;
}
public function wasCalled()
{
return $this->called;
}
public function stoppedPropagation()
{
return $this->stoppedPropagation;
}
public function __invoke(Event $event, $eventName, EventDispatcherInterface $dispatcher)
{
$this->called = true;
$e = $this->stopwatch->start($this->name, 'event_listener');
\call_user_func($this->listener, $event, $eventName, $this->dispatcher ?: $dispatcher);
if ($e->isStarted()) {
$e->stop();
}
if ($event->isPropagationStopped()) {
$this->stoppedPropagation = true;
}
}
}

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<?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\EventDispatcher\DependencyInjection;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
/**
* Compiler pass to register tagged services for an event dispatcher.
*/
class RegisterListenersPass implements CompilerPassInterface
{
protected $dispatcherService;
protected $listenerTag;
protected $subscriberTag;
/**
* @param string $dispatcherService Service name of the event dispatcher in processed container
* @param string $listenerTag Tag name used for listener
* @param string $subscriberTag Tag name used for subscribers
*/
public function __construct($dispatcherService = 'event_dispatcher', $listenerTag = 'kernel.event_listener', $subscriberTag = 'kernel.event_subscriber')
{
$this->dispatcherService = $dispatcherService;
$this->listenerTag = $listenerTag;
$this->subscriberTag = $subscriberTag;
}
public function process(ContainerBuilder $container)
{
if (!$container->hasDefinition($this->dispatcherService) && !$container->hasAlias($this->dispatcherService)) {
return;
}
$definition = $container->findDefinition($this->dispatcherService);
foreach ($container->findTaggedServiceIds($this->listenerTag) as $id => $events) {
$def = $container->getDefinition($id);
if (!$def->isPublic()) {
throw new \InvalidArgumentException(sprintf('The service "%s" must be public as event listeners are lazy-loaded.', $id));
}
if ($def->isAbstract()) {
throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as event listeners are lazy-loaded.', $id));
}
foreach ($events as $event) {
$priority = isset($event['priority']) ? $event['priority'] : 0;
if (!isset($event['event'])) {
throw new \InvalidArgumentException(sprintf('Service "%s" must define the "event" attribute on "%s" tags.', $id, $this->listenerTag));
}
if (!isset($event['method'])) {
$event['method'] = 'on'.preg_replace_callback(array(
'/(?<=\b)[a-z]/i',
'/[^a-z0-9]/i',
), function ($matches) { return strtoupper($matches[0]); }, $event['event']);
$event['method'] = preg_replace('/[^a-z0-9]/i', '', $event['method']);
}
$definition->addMethodCall('addListenerService', array($event['event'], array($id, $event['method']), $priority));
}
}
foreach ($container->findTaggedServiceIds($this->subscriberTag) as $id => $attributes) {
$def = $container->getDefinition($id);
if (!$def->isPublic()) {
throw new \InvalidArgumentException(sprintf('The service "%s" must be public as event subscribers are lazy-loaded.', $id));
}
if ($def->isAbstract()) {
throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as event subscribers are lazy-loaded.', $id));
}
// We must assume that the class value has been correctly filled, even if the service is created by a factory
$class = $container->getParameterBag()->resolveValue($def->getClass());
$interface = 'Symfony\Component\EventDispatcher\EventSubscriberInterface';
if (!is_subclass_of($class, $interface)) {
if (!class_exists($class, false)) {
throw new \InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
}
throw new \InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, $interface));
}
$definition->addMethodCall('addSubscriberService', array($id, $class));
}
}
}

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<?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\EventDispatcher;
/**
* Event is the base class for classes containing event data.
*
* This class contains no event data. It is used by events that do not pass
* state information to an event handler when an event is raised.
*
* You can call the method stopPropagation() to abort the execution of
* further listeners in your event listener.
*
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class Event
{
/**
* @var bool Whether no further event listeners should be triggered
*/
private $propagationStopped = false;
/**
* @var EventDispatcherInterface Dispatcher that dispatched this event
*/
private $dispatcher;
/**
* @var string This event's name
*/
private $name;
/**
* Returns whether further event listeners should be triggered.
*
* @see Event::stopPropagation()
*
* @return bool Whether propagation was already stopped for this event
*/
public function isPropagationStopped()
{
return $this->propagationStopped;
}
/**
* Stops the propagation of the event to further event listeners.
*
* If multiple event listeners are connected to the same event, no
* further event listener will be triggered once any trigger calls
* stopPropagation().
*/
public function stopPropagation()
{
$this->propagationStopped = true;
}
/**
* Stores the EventDispatcher that dispatches this Event.
*
* @param EventDispatcherInterface $dispatcher
*
* @deprecated since version 2.4, to be removed in 3.0. The event dispatcher is passed to the listener call.
*/
public function setDispatcher(EventDispatcherInterface $dispatcher)
{
$this->dispatcher = $dispatcher;
}
/**
* Returns the EventDispatcher that dispatches this Event.
*
* @return EventDispatcherInterface
*
* @deprecated since version 2.4, to be removed in 3.0. The event dispatcher is passed to the listener call.
*/
public function getDispatcher()
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.4 and will be removed in 3.0. The event dispatcher instance can be received in the listener call instead.', E_USER_DEPRECATED);
return $this->dispatcher;
}
/**
* Gets the event's name.
*
* @return string
*
* @deprecated since version 2.4, to be removed in 3.0. The event name is passed to the listener call.
*/
public function getName()
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.4 and will be removed in 3.0. The event name can be received in the listener call instead.', E_USER_DEPRECATED);
return $this->name;
}
/**
* Sets the event's name property.
*
* @param string $name The event name
*
* @deprecated since version 2.4, to be removed in 3.0. The event name is passed to the listener call.
*/
public function setName($name)
{
$this->name = $name;
}
}

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<?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\EventDispatcher;
/**
* The EventDispatcherInterface is the central point of Symfony's event listener system.
*
* Listeners are registered on the manager and events are dispatched through the
* manager.
*
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Fabien Potencier <fabien@symfony.com>
* @author Jordi Boggiano <j.boggiano@seld.be>
* @author Jordan Alliot <jordan.alliot@gmail.com>
*/
class EventDispatcher implements EventDispatcherInterface
{
private $listeners = array();
private $sorted = array();
/**
* {@inheritdoc}
*/
public function dispatch($eventName, Event $event = null)
{
if (null === $event) {
$event = new Event();
}
$event->setDispatcher($this);
$event->setName($eventName);
if ($listeners = $this->getListeners($eventName)) {
$this->doDispatch($listeners, $eventName, $event);
}
return $event;
}
/**
* {@inheritdoc}
*/
public function getListeners($eventName = null)
{
if (null !== $eventName) {
if (!isset($this->listeners[$eventName])) {
return array();
}
if (!isset($this->sorted[$eventName])) {
$this->sortListeners($eventName);
}
return $this->sorted[$eventName];
}
foreach ($this->listeners as $eventName => $eventListeners) {
if (!isset($this->sorted[$eventName])) {
$this->sortListeners($eventName);
}
}
return array_filter($this->sorted);
}
/**
* Gets the listener priority for a specific event.
*
* Returns null if the event or the listener does not exist.
*
* @param string $eventName The name of the event
* @param callable $listener The listener
*
* @return int|null The event listener priority
*/
public function getListenerPriority($eventName, $listener)
{
if (!isset($this->listeners[$eventName])) {
return;
}
foreach ($this->listeners[$eventName] as $priority => $listeners) {
if (false !== \in_array($listener, $listeners, true)) {
return $priority;
}
}
}
/**
* {@inheritdoc}
*/
public function hasListeners($eventName = null)
{
return (bool) $this->getListeners($eventName);
}
/**
* {@inheritdoc}
*/
public function addListener($eventName, $listener, $priority = 0)
{
$this->listeners[$eventName][$priority][] = $listener;
unset($this->sorted[$eventName]);
}
/**
* {@inheritdoc}
*/
public function removeListener($eventName, $listener)
{
if (!isset($this->listeners[$eventName])) {
return;
}
foreach ($this->listeners[$eventName] as $priority => $listeners) {
if (false !== ($key = array_search($listener, $listeners, true))) {
unset($this->listeners[$eventName][$priority][$key], $this->sorted[$eventName]);
}
}
}
/**
* {@inheritdoc}
*/
public function addSubscriber(EventSubscriberInterface $subscriber)
{
foreach ($subscriber->getSubscribedEvents() as $eventName => $params) {
if (\is_string($params)) {
$this->addListener($eventName, array($subscriber, $params));
} elseif (\is_string($params[0])) {
$this->addListener($eventName, array($subscriber, $params[0]), isset($params[1]) ? $params[1] : 0);
} else {
foreach ($params as $listener) {
$this->addListener($eventName, array($subscriber, $listener[0]), isset($listener[1]) ? $listener[1] : 0);
}
}
}
}
/**
* {@inheritdoc}
*/
public function removeSubscriber(EventSubscriberInterface $subscriber)
{
foreach ($subscriber->getSubscribedEvents() as $eventName => $params) {
if (\is_array($params) && \is_array($params[0])) {
foreach ($params as $listener) {
$this->removeListener($eventName, array($subscriber, $listener[0]));
}
} else {
$this->removeListener($eventName, array($subscriber, \is_string($params) ? $params : $params[0]));
}
}
}
/**
* Triggers the listeners of an event.
*
* This method can be overridden to add functionality that is executed
* for each listener.
*
* @param callable[] $listeners The event listeners
* @param string $eventName The name of the event to dispatch
* @param Event $event The event object to pass to the event handlers/listeners
*/
protected function doDispatch($listeners, $eventName, Event $event)
{
foreach ($listeners as $listener) {
if ($event->isPropagationStopped()) {
break;
}
\call_user_func($listener, $event, $eventName, $this);
}
}
/**
* Sorts the internal list of listeners for the given event by priority.
*
* @param string $eventName The name of the event
*/
private function sortListeners($eventName)
{
krsort($this->listeners[$eventName]);
$this->sorted[$eventName] = \call_user_func_array('array_merge', $this->listeners[$eventName]);
}
}

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<?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\EventDispatcher;
/**
* The EventDispatcherInterface is the central point of Symfony's event listener system.
* Listeners are registered on the manager and events are dispatched through the
* manager.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
interface EventDispatcherInterface
{
/**
* Dispatches an event to all registered listeners.
*
* @param string $eventName The name of the event to dispatch. The name of
* the event is the name of the method that is
* invoked on listeners.
* @param Event $event The event to pass to the event handlers/listeners
* If not supplied, an empty Event instance is created
*
* @return Event
*/
public function dispatch($eventName, Event $event = null);
/**
* Adds an event listener that listens on the specified events.
*
* @param string $eventName The event to listen on
* @param callable $listener The listener
* @param int $priority The higher this value, the earlier an event
* listener will be triggered in the chain (defaults to 0)
*/
public function addListener($eventName, $listener, $priority = 0);
/**
* Adds an event subscriber.
*
* The subscriber is asked for all the events he is
* interested in and added as a listener for these events.
*/
public function addSubscriber(EventSubscriberInterface $subscriber);
/**
* Removes an event listener from the specified events.
*
* @param string $eventName The event to remove a listener from
* @param callable $listener The listener to remove
*/
public function removeListener($eventName, $listener);
public function removeSubscriber(EventSubscriberInterface $subscriber);
/**
* Gets the listeners of a specific event or all listeners sorted by descending priority.
*
* @param string $eventName The name of the event
*
* @return array The event listeners for the specified event, or all event listeners by event name
*/
public function getListeners($eventName = null);
/**
* Checks whether an event has any registered listeners.
*
* @param string $eventName The name of the event
*
* @return bool true if the specified event has any listeners, false otherwise
*/
public function hasListeners($eventName = null);
}

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<?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\EventDispatcher;
/**
* An EventSubscriber knows himself what events he is interested in.
* If an EventSubscriber is added to an EventDispatcherInterface, the manager invokes
* {@link getSubscribedEvents} and registers the subscriber as a listener for all
* returned events.
*
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author Bernhard Schussek <bschussek@gmail.com>
*/
interface EventSubscriberInterface
{
/**
* Returns an array of event names this subscriber wants to listen to.
*
* The array keys are event names and the value can be:
*
* * The method name to call (priority defaults to 0)
* * An array composed of the method name to call and the priority
* * An array of arrays composed of the method names to call and respective
* priorities, or 0 if unset
*
* For instance:
*
* * array('eventName' => 'methodName')
* * array('eventName' => array('methodName', $priority))
* * array('eventName' => array(array('methodName1', $priority), array('methodName2')))
*
* @return array The event names to listen to
*/
public static function getSubscribedEvents();
}

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<?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\EventDispatcher;
/**
* Event encapsulation class.
*
* Encapsulates events thus decoupling the observer from the subject they encapsulate.
*
* @author Drak <drak@zikula.org>
*/
class GenericEvent extends Event implements \ArrayAccess, \IteratorAggregate
{
protected $subject;
protected $arguments;
/**
* Encapsulate an event with $subject and $args.
*
* @param mixed $subject The subject of the event, usually an object or a callable
* @param array $arguments Arguments to store in the event
*/
public function __construct($subject = null, array $arguments = array())
{
$this->subject = $subject;
$this->arguments = $arguments;
}
/**
* Getter for subject property.
*
* @return mixed The observer subject
*/
public function getSubject()
{
return $this->subject;
}
/**
* Get argument by key.
*
* @param string $key Key
*
* @return mixed Contents of array key
*
* @throws \InvalidArgumentException if key is not found
*/
public function getArgument($key)
{
if ($this->hasArgument($key)) {
return $this->arguments[$key];
}
throw new \InvalidArgumentException(sprintf('Argument "%s" not found.', $key));
}
/**
* Add argument to event.
*
* @param string $key Argument name
* @param mixed $value Value
*
* @return $this
*/
public function setArgument($key, $value)
{
$this->arguments[$key] = $value;
return $this;
}
/**
* Getter for all arguments.
*
* @return array
*/
public function getArguments()
{
return $this->arguments;
}
/**
* Set args property.
*
* @param array $args Arguments
*
* @return $this
*/
public function setArguments(array $args = array())
{
$this->arguments = $args;
return $this;
}
/**
* Has argument.
*
* @param string $key Key of arguments array
*
* @return bool
*/
public function hasArgument($key)
{
return array_key_exists($key, $this->arguments);
}
/**
* ArrayAccess for argument getter.
*
* @param string $key Array key
*
* @return mixed
*
* @throws \InvalidArgumentException if key does not exist in $this->args
*/
public function offsetGet($key)
{
return $this->getArgument($key);
}
/**
* ArrayAccess for argument setter.
*
* @param string $key Array key to set
* @param mixed $value Value
*/
public function offsetSet($key, $value)
{
$this->setArgument($key, $value);
}
/**
* ArrayAccess for unset argument.
*
* @param string $key Array key
*/
public function offsetUnset($key)
{
if ($this->hasArgument($key)) {
unset($this->arguments[$key]);
}
}
/**
* ArrayAccess has argument.
*
* @param string $key Array key
*
* @return bool
*/
public function offsetExists($key)
{
return $this->hasArgument($key);
}
/**
* IteratorAggregate for iterating over the object like an array.
*
* @return \ArrayIterator
*/
public function getIterator()
{
return new \ArrayIterator($this->arguments);
}
}

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<?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\EventDispatcher;
/**
* A read-only proxy for an event dispatcher.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class ImmutableEventDispatcher implements EventDispatcherInterface
{
private $dispatcher;
public function __construct(EventDispatcherInterface $dispatcher)
{
$this->dispatcher = $dispatcher;
}
/**
* {@inheritdoc}
*/
public function dispatch($eventName, Event $event = null)
{
return $this->dispatcher->dispatch($eventName, $event);
}
/**
* {@inheritdoc}
*/
public function addListener($eventName, $listener, $priority = 0)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
/**
* {@inheritdoc}
*/
public function addSubscriber(EventSubscriberInterface $subscriber)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
/**
* {@inheritdoc}
*/
public function removeListener($eventName, $listener)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
/**
* {@inheritdoc}
*/
public function removeSubscriber(EventSubscriberInterface $subscriber)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
/**
* {@inheritdoc}
*/
public function getListeners($eventName = null)
{
return $this->dispatcher->getListeners($eventName);
}
/**
* {@inheritdoc}
*/
public function getListenerPriority($eventName, $listener)
{
return $this->dispatcher->getListenerPriority($eventName, $listener);
}
/**
* {@inheritdoc}
*/
public function hasListeners($eventName = null)
{
return $this->dispatcher->hasListeners($eventName);
}
}

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Copyright (c) 2004-2018 Fabien Potencier
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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EventDispatcher Component
=========================
The EventDispatcher component provides tools that allow your application
components to communicate with each other by dispatching events and listening to
them.
Resources
---------
* [Documentation](https://symfony.com/doc/current/components/event_dispatcher/index.html)
* [Contributing](https://symfony.com/doc/current/contributing/index.html)
* [Report issues](https://github.com/symfony/symfony/issues) and
[send Pull Requests](https://github.com/symfony/symfony/pulls)
in the [main Symfony repository](https://github.com/symfony/symfony)

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{
"name": "symfony/event-dispatcher",
"type": "library",
"description": "Symfony EventDispatcher Component",
"keywords": [],
"homepage": "https://symfony.com",
"license": "MIT",
"authors": [
{
"name": "Fabien Potencier",
"email": "fabien@symfony.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"require": {
"php": ">=5.3.9"
},
"require-dev": {
"symfony/dependency-injection": "~2.6|~3.0.0",
"symfony/expression-language": "~2.6|~3.0.0",
"symfony/config": "^2.0.5|~3.0.0",
"symfony/stopwatch": "~2.3|~3.0.0",
"psr/log": "~1.0"
},
"suggest": {
"symfony/dependency-injection": "",
"symfony/http-kernel": ""
},
"autoload": {
"psr-4": { "Symfony\\Component\\EventDispatcher\\": "" },
"exclude-from-classmap": [
"/Tests/"
]
},
"minimum-stability": "dev",
"extra": {
"branch-alias": {
"dev-master": "2.8-dev"
}
}
}

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<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/5.2/phpunit.xsd"
backupGlobals="false"
colors="true"
bootstrap="vendor/autoload.php"
failOnRisky="true"
failOnWarning="true"
>
<php>
<ini name="error_reporting" value="-1" />
</php>
<testsuites>
<testsuite name="Symfony EventDispatcher Component Test Suite">
<directory>./Tests/</directory>
</testsuite>
</testsuites>
<filter>
<whitelist>
<directory>./</directory>
<exclude>
<directory>./Resources</directory>
<directory>./Tests</directory>
<directory>./vendor</directory>
</exclude>
</whitelist>
</filter>
</phpunit>

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CHANGELOG
=========
3.4.0
-----
* deprecated the ProcessBuilder class
* deprecated calling `Process::start()` without setting a valid working directory beforehand (via `setWorkingDirectory()` or constructor)
3.3.0
-----
* added command line arrays in the `Process` class
* added `$env` argument to `Process::start()`, `run()`, `mustRun()` and `restart()` methods
* deprecated the `ProcessUtils::escapeArgument()` method
* deprecated not inheriting environment variables
* deprecated configuring `proc_open()` options
* deprecated configuring enhanced Windows compatibility
* deprecated configuring enhanced sigchild compatibility
2.5.0
-----
* added support for PTY mode
* added the convenience method "mustRun"
* deprecation: Process::setStdin() is deprecated in favor of Process::setInput()
* deprecation: Process::getStdin() is deprecated in favor of Process::getInput()
* deprecation: Process::setInput() and ProcessBuilder::setInput() do not accept non-scalar types
2.4.0
-----
* added the ability to define an idle timeout
2.3.0
-----
* added ProcessUtils::escapeArgument() to fix the bug in escapeshellarg() function on Windows
* added Process::signal()
* added Process::getPid()
* added support for a TTY mode
2.2.0
-----
* added ProcessBuilder::setArguments() to reset the arguments on a builder
* added a way to retrieve the standard and error output incrementally
* added Process:restart()
2.1.0
-----
* added support for non-blocking processes (start(), wait(), isRunning(), stop())
* enhanced Windows compatibility
* added Process::getExitCodeText() that returns a string representation for
the exit code returned by the process
* added ProcessBuilder

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<?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\Exception;
/**
* Marker Interface for the Process Component.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
interface ExceptionInterface
{
}

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<?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\Exception;
/**
* InvalidArgumentException for the Process Component.
*
* @author Romain Neutron <imprec@gmail.com>
*/
class InvalidArgumentException extends \InvalidArgumentException implements ExceptionInterface
{
}

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<?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\Exception;
/**
* LogicException for the Process Component.
*
* @author Romain Neutron <imprec@gmail.com>
*/
class LogicException extends \LogicException implements ExceptionInterface
{
}

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<?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\Exception;
use Symfony\Component\Process\Process;
/**
* Exception for failed processes.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ProcessFailedException extends RuntimeException
{
private $process;
public function __construct(Process $process)
{
if ($process->isSuccessful()) {
throw new InvalidArgumentException('Expected a failed process, but the given process was successful.');
}
$error = sprintf('The command "%s" failed.'."\n\nExit Code: %s(%s)\n\nWorking directory: %s",
$process->getCommandLine(),
$process->getExitCode(),
$process->getExitCodeText(),
$process->getWorkingDirectory()
);
if (!$process->isOutputDisabled()) {
$error .= sprintf("\n\nOutput:\n================\n%s\n\nError Output:\n================\n%s",
$process->getOutput(),
$process->getErrorOutput()
);
}
parent::__construct($error);
$this->process = $process;
}
public function getProcess()
{
return $this->process;
}
}

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<?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\Exception;
use Symfony\Component\Process\Process;
/**
* Exception that is thrown when a process times out.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ProcessTimedOutException extends RuntimeException
{
const TYPE_GENERAL = 1;
const TYPE_IDLE = 2;
private $process;
private $timeoutType;
public function __construct(Process $process, $timeoutType)
{
$this->process = $process;
$this->timeoutType = $timeoutType;
parent::__construct(sprintf(
'The process "%s" exceeded the timeout of %s seconds.',
$process->getCommandLine(),
$this->getExceededTimeout()
));
}
public function getProcess()
{
return $this->process;
}
public function isGeneralTimeout()
{
return self::TYPE_GENERAL === $this->timeoutType;
}
public function isIdleTimeout()
{
return self::TYPE_IDLE === $this->timeoutType;
}
public function getExceededTimeout()
{
switch ($this->timeoutType) {
case self::TYPE_GENERAL:
return $this->process->getTimeout();
case self::TYPE_IDLE:
return $this->process->getIdleTimeout();
default:
throw new \LogicException(sprintf('Unknown timeout type "%d".', $this->timeoutType));
}
}
}

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<?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\Exception;
/**
* RuntimeException for the Process Component.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class RuntimeException extends \RuntimeException implements ExceptionInterface
{
}

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<?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;
/**
* Generic executable finder.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ExecutableFinder
{
private $suffixes = ['.exe', '.bat', '.cmd', '.com'];
/**
* Replaces default suffixes of executable.
*/
public function setSuffixes(array $suffixes)
{
$this->suffixes = $suffixes;
}
/**
* Adds new possible suffix to check for executable.
*
* @param string $suffix
*/
public function addSuffix($suffix)
{
$this->suffixes[] = $suffix;
}
/**
* Finds an executable by name.
*
* @param string $name The executable name (without the extension)
* @param string|null $default The default to return if no executable is found
* @param array $extraDirs Additional dirs to check into
*
* @return string|null The executable path or default value
*/
public function find($name, $default = null, array $extraDirs = [])
{
if (ini_get('open_basedir')) {
$searchPath = array_merge(explode(PATH_SEPARATOR, ini_get('open_basedir')), $extraDirs);
$dirs = [];
foreach ($searchPath as $path) {
// Silencing against https://bugs.php.net/69240
if (@is_dir($path)) {
$dirs[] = $path;
} else {
if (basename($path) == $name && @is_executable($path)) {
return $path;
}
}
}
} else {
$dirs = array_merge(
explode(PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')),
$extraDirs
);
}
$suffixes = [''];
if ('\\' === \DIRECTORY_SEPARATOR) {
$pathExt = getenv('PATHEXT');
$suffixes = array_merge($pathExt ? explode(PATH_SEPARATOR, $pathExt) : $this->suffixes, $suffixes);
}
foreach ($suffixes as $suffix) {
foreach ($dirs as $dir) {
if (@is_file($file = $dir.\DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === \DIRECTORY_SEPARATOR || @is_executable($file))) {
return $file;
}
}
}
return $default;
}
}

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<?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;
use Symfony\Component\Process\Exception\RuntimeException;
/**
* Provides a way to continuously write to the input of a Process until the InputStream is closed.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
class InputStream implements \IteratorAggregate
{
/** @var callable|null */
private $onEmpty = null;
private $input = [];
private $open = true;
/**
* Sets a callback that is called when the write buffer becomes empty.
*/
public function onEmpty(callable $onEmpty = null)
{
$this->onEmpty = $onEmpty;
}
/**
* Appends an input to the write buffer.
*
* @param resource|string|int|float|bool|\Traversable|null $input The input to append as scalar,
* stream resource or \Traversable
*/
public function write($input)
{
if (null === $input) {
return;
}
if ($this->isClosed()) {
throw new RuntimeException(sprintf('%s is closed', static::class));
}
$this->input[] = ProcessUtils::validateInput(__METHOD__, $input);
}
/**
* Closes the write buffer.
*/
public function close()
{
$this->open = false;
}
/**
* Tells whether the write buffer is closed or not.
*/
public function isClosed()
{
return !$this->open;
}
public function getIterator()
{
$this->open = true;
while ($this->open || $this->input) {
if (!$this->input) {
yield '';
continue;
}
$current = array_shift($this->input);
if ($current instanceof \Iterator) {
foreach ($current as $cur) {
yield $cur;
}
} else {
yield $current;
}
if (!$this->input && $this->open && null !== $onEmpty = $this->onEmpty) {
$this->write($onEmpty($this));
}
}
}
}

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Copyright (c) 2004-2019 Fabien Potencier
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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<?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;
/**
* An executable finder specifically designed for the PHP executable.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class PhpExecutableFinder
{
private $executableFinder;
public function __construct()
{
$this->executableFinder = new ExecutableFinder();
}
/**
* Finds The PHP executable.
*
* @param bool $includeArgs Whether or not include command arguments
*
* @return string|false The PHP executable path or false if it cannot be found
*/
public function find($includeArgs = true)
{
$args = $this->findArguments();
$args = $includeArgs && $args ? ' '.implode(' ', $args) : '';
// HHVM support
if (\defined('HHVM_VERSION')) {
return (getenv('PHP_BINARY') ?: PHP_BINARY).$args;
}
// PHP_BINARY return the current sapi executable
if (PHP_BINARY && \in_array(\PHP_SAPI, ['cli', 'cli-server', 'phpdbg'], true)) {
return PHP_BINARY.$args;
}
if ($php = getenv('PHP_PATH')) {
if (!@is_executable($php)) {
return false;
}
return $php;
}
if ($php = getenv('PHP_PEAR_PHP_BIN')) {
if (@is_executable($php)) {
return $php;
}
}
if (@is_executable($php = PHP_BINDIR.('\\' === \DIRECTORY_SEPARATOR ? '\\php.exe' : '/php'))) {
return $php;
}
$dirs = [PHP_BINDIR];
if ('\\' === \DIRECTORY_SEPARATOR) {
$dirs[] = 'C:\xampp\php\\';
}
return $this->executableFinder->find('php', false, $dirs);
}
/**
* Finds the PHP executable arguments.
*
* @return array The PHP executable arguments
*/
public function findArguments()
{
$arguments = [];
if (\defined('HHVM_VERSION')) {
$arguments[] = '--php';
} elseif ('phpdbg' === \PHP_SAPI) {
$arguments[] = '-qrr';
}
return $arguments;
}
}

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<?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;
use Symfony\Component\Process\Exception\RuntimeException;
/**
* PhpProcess runs a PHP script in an independent process.
*
* $p = new PhpProcess('<?php echo "foo"; ?>');
* $p->run();
* print $p->getOutput()."\n";
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class PhpProcess extends Process
{
/**
* @param string $script The PHP script to run (as a string)
* @param string|null $cwd The working directory or null to use the working dir of the current PHP process
* @param array|null $env The environment variables or null to use the same environment as the current PHP process
* @param int $timeout The timeout in seconds
* @param array $options An array of options for proc_open
*/
public function __construct($script, $cwd = null, array $env = null, $timeout = 60, array $options = null)
{
$executableFinder = new PhpExecutableFinder();
if (false === $php = $executableFinder->find(false)) {
$php = null;
} else {
$php = array_merge([$php], $executableFinder->findArguments());
}
if ('phpdbg' === \PHP_SAPI) {
$file = tempnam(sys_get_temp_dir(), 'dbg');
file_put_contents($file, $script);
register_shutdown_function('unlink', $file);
$php[] = $file;
$script = null;
}
if (null !== $options) {
@trigger_error(sprintf('The $options parameter of the %s constructor is deprecated since Symfony 3.3 and will be removed in 4.0.', __CLASS__), E_USER_DEPRECATED);
}
parent::__construct($php, $cwd, $env, $script, $timeout, $options);
}
/**
* Sets the path to the PHP binary to use.
*/
public function setPhpBinary($php)
{
$this->setCommandLine($php);
}
/**
* {@inheritdoc}
*/
public function start(callable $callback = null/*, array $env = []*/)
{
if (null === $this->getCommandLine()) {
throw new RuntimeException('Unable to find the PHP executable.');
}
$env = 1 < \func_num_args() ? func_get_arg(1) : null;
parent::start($callback, $env);
}
}

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<?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
{
public $pipes = [];
private $inputBuffer = '';
private $input;
private $blocked = true;
private $lastError;
/**
* @param resource|string|int|float|bool|\Iterator|null $input
*/
public function __construct($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 = [];
}
/**
* Returns true if a system call has been interrupted.
*
* @return bool
*/
protected function hasSystemCallBeenInterrupted()
{
$lastError = $this->lastError;
$this->lastError = null;
// stream_select returns false when the `select` system call is interrupted by an incoming signal
return null !== $lastError && false !== stripos($lastError, '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 = [];
$w = [$this->pipes[0]];
// let's have a look if something changed in streams
if (false === @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 [$this->pipes[0]];
}
}
if ($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 = $data;
return [$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 [$this->pipes[0]];
}
}
/**
* @internal
*/
public function handleError($type, $msg)
{
$this->lastError = $msg;
}
}

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<?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();
}

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<?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
{
private $ttyMode;
private $ptyMode;
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 [
['pipe', 'r'],
$nullstream,
$nullstream,
];
}
if ($this->ttyMode) {
return [
['file', '/dev/tty', 'r'],
['file', '/dev/tty', 'w'],
['file', '/dev/tty', 'w'],
];
}
if ($this->ptyMode && Process::isPtySupported()) {
return [
['pty'],
['pty'],
['pty'],
];
}
return [
['pipe', 'r'],
['pipe', 'w'], // stdout
['pipe', 'w'], // stderr
];
}
/**
* {@inheritdoc}
*/
public function getFiles()
{
return [];
}
/**
* {@inheritdoc}
*/
public function readAndWrite($blocking, $close = false)
{
$this->unblock();
$w = $this->write();
$read = $e = [];
$r = $this->pipes;
unset($r[0]);
// let's have a look if something changed in streams
set_error_handler([$this, 'handleError']);
if (($r || $w) && false === stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) {
restore_error_handler();
// if a system call has been interrupted, forget about it, let's try again
// otherwise, an error occurred, let's reset pipes
if (!$this->hasSystemCallBeenInterrupted()) {
$this->pipes = [];
}
return $read;
}
restore_error_handler();
foreach ($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;
}
}

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<?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\RuntimeException;
use Symfony\Component\Process\Process;
/**
* 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
{
private $files = [];
private $fileHandles = [];
private $lockHandles = [];
private $readBytes = [
Process::STDOUT => 0,
Process::STDERR => 0,
];
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 = [
Process::STDOUT => Process::OUT,
Process::STDERR => Process::ERR,
];
$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, $name);
if (!$h = fopen($file.'.lock', 'w')) {
restore_error_handler();
throw new RuntimeException(sprintf('A temporary file could not be opened to write the process output: %s', $lastError));
}
if (!flock($h, LOCK_EX | LOCK_NB)) {
continue 2;
}
if (isset($this->lockHandles[$pipe])) {
flock($this->lockHandles[$pipe], LOCK_UN);
fclose($this->lockHandles[$pipe]);
}
$this->lockHandles[$pipe] = $h;
if (!fclose(fopen($file, 'w')) || !$h = fopen($file, 'r')) {
flock($this->lockHandles[$pipe], LOCK_UN);
fclose($this->lockHandles[$pipe]);
unset($this->lockHandles[$pipe]);
continue 2;
}
$this->fileHandles[$pipe] = $h;
$this->files[$pipe] = $file;
}
break;
}
restore_error_handler();
}
parent::__construct($input);
}
public function __destruct()
{
$this->close();
}
/**
* {@inheritdoc}
*/
public function getDescriptors()
{
if (!$this->haveReadSupport) {
$nullstream = fopen('NUL', 'c');
return [
['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 [
['pipe', 'r'],
['file', 'NUL', 'w'],
['file', 'NUL', 'w'],
];
}
/**
* {@inheritdoc}
*/
public function getFiles()
{
return $this->files;
}
/**
* {@inheritdoc}
*/
public function readAndWrite($blocking, $close = false)
{
$this->unblock();
$w = $this->write();
$read = $r = $e = [];
if ($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) {
ftruncate($fileHandle, 0);
fclose($fileHandle);
flock($this->lockHandles[$type], LOCK_UN);
fclose($this->lockHandles[$type]);
unset($this->fileHandles[$type], $this->lockHandles[$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 $type => $handle) {
ftruncate($handle, 0);
fclose($handle);
flock($this->lockHandles[$type], LOCK_UN);
fclose($this->lockHandles[$type]);
}
$this->fileHandles = $this->lockHandles = [];
}
}

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<?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;
@trigger_error(sprintf('The %s class is deprecated since Symfony 3.4 and will be removed in 4.0. Use the Process class instead.', ProcessBuilder::class), E_USER_DEPRECATED);
use Symfony\Component\Process\Exception\InvalidArgumentException;
use Symfony\Component\Process\Exception\LogicException;
/**
* @author Kris Wallsmith <kris@symfony.com>
*
* @deprecated since version 3.4, to be removed in 4.0. Use the Process class instead.
*/
class ProcessBuilder
{
private $arguments;
private $cwd;
private $env = [];
private $input;
private $timeout = 60;
private $options;
private $inheritEnv = true;
private $prefix = [];
private $outputDisabled = false;
/**
* @param string[] $arguments An array of arguments
*/
public function __construct(array $arguments = [])
{
$this->arguments = $arguments;
}
/**
* Creates a process builder instance.
*
* @param string[] $arguments An array of arguments
*
* @return static
*/
public static function create(array $arguments = [])
{
return new static($arguments);
}
/**
* Adds an unescaped argument to the command string.
*
* @param string $argument A command argument
*
* @return $this
*/
public function add($argument)
{
$this->arguments[] = $argument;
return $this;
}
/**
* Adds a prefix to the command string.
*
* The prefix is preserved when resetting arguments.
*
* @param string|array $prefix A command prefix or an array of command prefixes
*
* @return $this
*/
public function setPrefix($prefix)
{
$this->prefix = \is_array($prefix) ? $prefix : [$prefix];
return $this;
}
/**
* Sets the arguments of the process.
*
* Arguments must not be escaped.
* Previous arguments are removed.
*
* @param string[] $arguments
*
* @return $this
*/
public function setArguments(array $arguments)
{
$this->arguments = $arguments;
return $this;
}
/**
* Sets the working directory.
*
* @param string|null $cwd The working directory
*
* @return $this
*/
public function setWorkingDirectory($cwd)
{
$this->cwd = $cwd;
return $this;
}
/**
* Sets whether environment variables will be inherited or not.
*
* @param bool $inheritEnv
*
* @return $this
*/
public function inheritEnvironmentVariables($inheritEnv = true)
{
$this->inheritEnv = $inheritEnv;
return $this;
}
/**
* Sets an environment variable.
*
* Setting a variable overrides its previous value. Use `null` to unset a
* defined environment variable.
*
* @param string $name The variable name
* @param string|null $value The variable value
*
* @return $this
*/
public function setEnv($name, $value)
{
$this->env[$name] = $value;
return $this;
}
/**
* Adds a set of environment variables.
*
* Already existing environment variables with the same name will be
* overridden by the new values passed to this method. Pass `null` to unset
* a variable.
*
* @param array $variables The variables
*
* @return $this
*/
public function addEnvironmentVariables(array $variables)
{
$this->env = array_replace($this->env, $variables);
return $this;
}
/**
* Sets the input of the process.
*
* @param resource|string|int|float|bool|\Traversable|null $input The input content
*
* @return $this
*
* @throws InvalidArgumentException In case the argument is invalid
*/
public function setInput($input)
{
$this->input = ProcessUtils::validateInput(__METHOD__, $input);
return $this;
}
/**
* Sets the process timeout.
*
* To disable the timeout, set this value to null.
*
* @param float|null $timeout
*
* @return $this
*
* @throws InvalidArgumentException
*/
public function setTimeout($timeout)
{
if (null === $timeout) {
$this->timeout = null;
return $this;
}
$timeout = (float) $timeout;
if ($timeout < 0) {
throw new InvalidArgumentException('The timeout value must be a valid positive integer or float number.');
}
$this->timeout = $timeout;
return $this;
}
/**
* Adds a proc_open option.
*
* @param string $name The option name
* @param string $value The option value
*
* @return $this
*/
public function setOption($name, $value)
{
$this->options[$name] = $value;
return $this;
}
/**
* Disables fetching output and error output from the underlying process.
*
* @return $this
*/
public function disableOutput()
{
$this->outputDisabled = true;
return $this;
}
/**
* Enables fetching output and error output from the underlying process.
*
* @return $this
*/
public function enableOutput()
{
$this->outputDisabled = false;
return $this;
}
/**
* Creates a Process instance and returns it.
*
* @return Process
*
* @throws LogicException In case no arguments have been provided
*/
public function getProcess()
{
if (0 === \count($this->prefix) && 0 === \count($this->arguments)) {
throw new LogicException('You must add() command arguments before calling getProcess().');
}
$arguments = array_merge($this->prefix, $this->arguments);
$process = new Process($arguments, $this->cwd, $this->env, $this->input, $this->timeout, $this->options);
// to preserve the BC with symfony <3.3, we convert the array structure
// to a string structure to avoid the prefixing with the exec command
$process->setCommandLine($process->getCommandLine());
if ($this->inheritEnv) {
$process->inheritEnvironmentVariables();
}
if ($this->outputDisabled) {
$process->disableOutput();
}
return $process;
}
}

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<?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;
use Symfony\Component\Process\Exception\InvalidArgumentException;
/**
* ProcessUtils is a bunch of utility methods.
*
* This class contains static methods only and is not meant to be instantiated.
*
* @author Martin Hasoň <martin.hason@gmail.com>
*/
class ProcessUtils
{
/**
* This class should not be instantiated.
*/
private function __construct()
{
}
/**
* Escapes a string to be used as a shell argument.
*
* @param string $argument The argument that will be escaped
*
* @return string The escaped argument
*
* @deprecated since version 3.3, to be removed in 4.0. Use a command line array or give env vars to the `Process::start/run()` method instead.
*/
public static function escapeArgument($argument)
{
@trigger_error('The '.__METHOD__.'() method is deprecated since Symfony 3.3 and will be removed in 4.0. Use a command line array or give env vars to the Process::start/run() method instead.', E_USER_DEPRECATED);
//Fix for PHP bug #43784 escapeshellarg removes % from given string
//Fix for PHP bug #49446 escapeshellarg doesn't work on Windows
//@see https://bugs.php.net/bug.php?id=43784
//@see https://bugs.php.net/bug.php?id=49446
if ('\\' === \DIRECTORY_SEPARATOR) {
if ('' === $argument) {
return escapeshellarg($argument);
}
$escapedArgument = '';
$quote = false;
foreach (preg_split('/(")/', $argument, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE) as $part) {
if ('"' === $part) {
$escapedArgument .= '\\"';
} elseif (self::isSurroundedBy($part, '%')) {
// Avoid environment variable expansion
$escapedArgument .= '^%"'.substr($part, 1, -1).'"^%';
} else {
// escape trailing backslash
if ('\\' === substr($part, -1)) {
$part .= '\\';
}
$quote = true;
$escapedArgument .= $part;
}
}
if ($quote) {
$escapedArgument = '"'.$escapedArgument.'"';
}
return $escapedArgument;
}
return "'".str_replace("'", "'\\''", $argument)."'";
}
/**
* Validates and normalizes a Process input.
*
* @param string $caller The name of method call that validates the input
* @param mixed $input The input to validate
*
* @return mixed The validated input
*
* @throws InvalidArgumentException In case the input is not valid
*/
public static function validateInput($caller, $input)
{
if (null !== $input) {
if (\is_resource($input)) {
return $input;
}
if (\is_string($input)) {
return $input;
}
if (is_scalar($input)) {
return (string) $input;
}
if ($input instanceof Process) {
return $input->getIterator($input::ITER_SKIP_ERR);
}
if ($input instanceof \Iterator) {
return $input;
}
if ($input instanceof \Traversable) {
return new \IteratorIterator($input);
}
throw new InvalidArgumentException(sprintf('%s only accepts strings, Traversable objects or stream resources.', $caller));
}
return $input;
}
private static function isSurroundedBy($arg, $char)
{
return 2 < \strlen($arg) && $char === $arg[0] && $char === $arg[\strlen($arg) - 1];
}
}

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Process Component
=================
The Process component executes commands in sub-processes.
Resources
---------
* [Documentation](https://symfony.com/doc/current/components/process.html)
* [Contributing](https://symfony.com/doc/current/contributing/index.html)
* [Report issues](https://github.com/symfony/symfony/issues) and
[send Pull Requests](https://github.com/symfony/symfony/pulls)
in the [main Symfony repository](https://github.com/symfony/symfony)

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{
"name": "symfony/process",
"type": "library",
"description": "Symfony Process Component",
"keywords": [],
"homepage": "https://symfony.com",
"license": "MIT",
"authors": [
{
"name": "Fabien Potencier",
"email": "fabien@symfony.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"require": {
"php": "^5.5.9|>=7.0.8"
},
"autoload": {
"psr-4": { "Symfony\\Component\\Process\\": "" },
"exclude-from-classmap": [
"/Tests/"
]
},
"minimum-stability": "dev",
"extra": {
"branch-alias": {
"dev-master": "3.4-dev"
}
}
}

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<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/5.2/phpunit.xsd"
backupGlobals="false"
colors="true"
bootstrap="vendor/autoload.php"
failOnRisky="true"
failOnWarning="true"
>
<php>
<ini name="error_reporting" value="-1" />
</php>
<testsuites>
<testsuite name="Symfony Process Component Test Suite">
<directory>./Tests/</directory>
</testsuite>
</testsuites>
<filter>
<whitelist>
<directory>./</directory>
<exclude>
<directory>./Tests</directory>
<directory>./vendor</directory>
</exclude>
</whitelist>
</filter>
</phpunit>