home/alospiesjs/www/apis/youtube/vendor/symfony/http-foundation/StreamedResponse.php000060400000005104151155356440025251 0ustar00 * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\HttpFoundation; /** * StreamedResponse represents a streamed HTTP response. * * A StreamedResponse uses a callback for its content. * * The callback should use the standard PHP functions like echo * to stream the response back to the client. The flush() function * can also be used if needed. * * @see flush() * * @author Fabien Potencier */ class StreamedResponse extends Response { protected $callback; protected $streamed; private bool $headersSent; public function __construct(callable $callback = null, int $status = 200, array $headers = []) { parent::__construct(null, $status, $headers); if (null !== $callback) { $this->setCallback($callback); } $this->streamed = false; $this->headersSent = false; } /** * Sets the PHP callback associated with this Response. * * @return $this */ public function setCallback(callable $callback): static { $this->callback = $callback; return $this; } /** * {@inheritdoc} * * This method only sends the headers once. * * @return $this */ public function sendHeaders(): static { if ($this->headersSent) { return $this; } $this->headersSent = true; return parent::sendHeaders(); } /** * {@inheritdoc} * * This method only sends the content once. * * @return $this */ public function sendContent(): static { if ($this->streamed) { return $this; } $this->streamed = true; if (null === $this->callback) { throw new \LogicException('The Response callback must not be null.'); } ($this->callback)(); return $this; } /** * {@inheritdoc} * * @throws \LogicException when the content is not null * * @return $this */ public function setContent(?string $content): static { if (null !== $content) { throw new \LogicException('The content cannot be set on a StreamedResponse instance.'); } $this->streamed = true; return $this; } /** * {@inheritdoc} */ public function getContent(): string|false { return false; } }