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<?php declare(strict_types=1); |
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namespace Yiisoft\Yii\Web\Emitter; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* SapiEmitter sends a response using PHP Server API |
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*/ |
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final class SapiEmitter implements EmitterInterface |
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{ |
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private const NO_BODY_RESPONSE_CODES = [204, 205, 304]; |
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private $bufferSize; |
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private const DEFAULT_BUFFER_SIZE = 8388608; // 8MB |
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public function __construct(int $bufferSize = self::DEFAULT_BUFFER_SIZE) |
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{ |
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$this->bufferSize = $bufferSize > 0 ? $bufferSize : self::DEFAULT_BUFFER_SIZE; |
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} |
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public function emit(ResponseInterface $response, bool $withoutBody = false): bool |
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{ |
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$status = $response->getStatusCode(); |
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header_remove(); |
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foreach ($response->getHeaders() as $header => $values) { |
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foreach ($values as $value) { |
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header(sprintf( |
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'%s: %s', |
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$header, |
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$value |
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), $header !== 'Set-Cookie', $status); |
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} |
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} |
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$reason = $response->getReasonPhrase(); |
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header(sprintf( |
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'HTTP/%s %d %s', |
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$response->getProtocolVersion(), |
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$status, |
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$reason |
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), true, $status); |
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if ($withoutBody === false && $this->shouldOutputBody($response)) { |
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$contentLength = $response->getBody()->getSize(); |
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if ($response->hasHeader('Content-Length')) { |
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$contentLengthHeader = $response->getHeader('Content-Length'); |
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$contentLength = array_shift($contentLengthHeader); |
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} |
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if ($contentLength !== null) { |
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header(sprintf('Content-Length: %s', $contentLength), true, $status); |
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} |
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$this->emitBody($response); |
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} |
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return true; |
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} |
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private function emitBody(ResponseInterface $response): void |
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{ |
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$body = $response->getBody(); |
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if ($body->isSeekable()) { |
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$body->rewind(); |
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} |
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$bytesToSend = $response->getBody()->getSize(); |
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if ($bytesToSend > 0) { |
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while ($bytesToSend > 0 && !$body->eof()) { |
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$toRead = \min($this->bufferSize, $bytesToSend); |
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$data = $body->read($toRead); |
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echo $data; |
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$bytesToSend -= \strlen($data); |
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\flush(); |
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} |
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} else { |
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while (!$body->eof()) { |
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echo $body->read($this->bufferSize); |
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\flush(); |
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} |
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} |
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} |
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private function shouldOutputBody(ResponseInterface $response): bool |
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{ |
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return !\in_array($response->getStatusCode(), self::NO_BODY_RESPONSE_CODES, true); |
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} |
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} |
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yiisoft /
yii-web
