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- <?php
- namespace Symfony\Component\HttpFoundation;
- class StreamedResponse extends Response
- {
- protected $callback;
- protected $streamed;
- private $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;
- $this->headersSent = false;
- }
-
- public static function create($callback = null, int $status = 200, array $headers = [])
- {
- trigger_deprecation('symfony/http-foundation', '5.1', 'The "%s()" method is deprecated, use "new %s()" instead.', __METHOD__, static::class);
- return new static($callback, $status, $headers);
- }
-
- public function setCallback(callable $callback)
- {
- $this->callback = $callback;
- return $this;
- }
-
- public function sendHeaders()
- {
- if ($this->headersSent) {
- return $this;
- }
- $this->headersSent = true;
- return parent::sendHeaders();
- }
-
- public function sendContent()
- {
- if ($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;
- }
-
- public function setContent(?string $content)
- {
- if (null !== $content) {
- throw new \LogicException('The content cannot be set on a StreamedResponse instance.');
- }
- $this->streamed = true;
- return $this;
- }
-
- public function getContent()
- {
- return false;
- }
- }
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