199 lines
5.6 KiB
PHP
199 lines
5.6 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpClient\Response;
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use Symfony\Component\HttpClient\Chunk\DataChunk;
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use Symfony\Component\HttpClient\Chunk\LastChunk;
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use Symfony\Component\HttpClient\Exception\TransportException;
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use Symfony\Contracts\HttpClient\ChunkInterface;
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use Symfony\Contracts\HttpClient\HttpClientInterface;
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use Symfony\Contracts\HttpClient\ResponseInterface;
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/**
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* A DTO to work with AsyncResponse.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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final class AsyncContext
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{
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private $passthru;
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private $client;
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private $response;
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private array $info = [];
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private $content;
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private int $offset;
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/**
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* @param resource|null $content
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*/
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public function __construct(?callable &$passthru, HttpClientInterface $client, ResponseInterface &$response, array &$info, $content, int $offset)
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{
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$this->passthru = &$passthru;
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$this->client = $client;
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$this->response = &$response;
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$this->info = &$info;
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$this->content = $content;
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$this->offset = $offset;
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}
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/**
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* Returns the HTTP status without consuming the response.
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*/
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public function getStatusCode(): int
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{
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return $this->response->getInfo('http_code');
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}
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/**
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* Returns the headers without consuming the response.
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*/
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public function getHeaders(): array
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{
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$headers = [];
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foreach ($this->response->getInfo('response_headers') as $h) {
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if (11 <= \strlen($h) && '/' === $h[4] && preg_match('#^HTTP/\d+(?:\.\d+)? ([123456789]\d\d)(?: |$)#', $h, $m)) {
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$headers = [];
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} elseif (2 === \count($m = explode(':', $h, 2))) {
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$headers[strtolower($m[0])][] = ltrim($m[1]);
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}
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}
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return $headers;
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}
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/**
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* @return resource|null The PHP stream resource where the content is buffered, if it is
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*/
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public function getContent()
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{
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return $this->content;
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}
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/**
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* Creates a new chunk of content.
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*/
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public function createChunk(string $data): ChunkInterface
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{
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return new DataChunk($this->offset, $data);
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}
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/**
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* Pauses the request for the given number of seconds.
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*/
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public function pause(float $duration): void
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{
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if (\is_callable($pause = $this->response->getInfo('pause_handler'))) {
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$pause($duration);
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} elseif (0 < $duration) {
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usleep(1E6 * $duration);
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}
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}
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/**
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* Cancels the request and returns the last chunk to yield.
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*/
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public function cancel(): ChunkInterface
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{
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$this->info['canceled'] = true;
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$this->info['error'] = 'Response has been canceled.';
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$this->response->cancel();
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return new LastChunk();
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}
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/**
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* Returns the current info of the response.
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*/
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public function getInfo(string $type = null): mixed
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{
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if (null !== $type) {
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return $this->info[$type] ?? $this->response->getInfo($type);
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}
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return $this->info + $this->response->getInfo();
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}
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/**
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* Attaches an info to the response.
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*
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* @return $this
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*/
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public function setInfo(string $type, mixed $value): static
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{
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if ('canceled' === $type && $value !== $this->info['canceled']) {
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throw new \LogicException('You cannot set the "canceled" info directly.');
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}
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if (null === $value) {
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unset($this->info[$type]);
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} else {
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$this->info[$type] = $value;
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}
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return $this;
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}
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/**
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* Returns the currently processed response.
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*/
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public function getResponse(): ResponseInterface
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{
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return $this->response;
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}
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/**
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* Replaces the currently processed response by doing a new request.
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*/
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public function replaceRequest(string $method, string $url, array $options = []): ResponseInterface
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{
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$this->info['previous_info'][] = $info = $this->response->getInfo();
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if (null !== $onProgress = $options['on_progress'] ?? null) {
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$thisInfo = &$this->info;
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$options['on_progress'] = static function (int $dlNow, int $dlSize, array $info) use (&$thisInfo, $onProgress) {
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$onProgress($dlNow, $dlSize, $thisInfo + $info);
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};
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}
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if (0 < ($info['max_duration'] ?? 0) && 0 < ($info['total_time'] ?? 0)) {
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if (0 >= $options['max_duration'] = $info['max_duration'] - $info['total_time']) {
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throw new TransportException(sprintf('Max duration was reached for "%s".', $info['url']));
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}
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}
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return $this->response = $this->client->request($method, $url, ['buffer' => false] + $options);
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}
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/**
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* Replaces the currently processed response by another one.
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*/
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public function replaceResponse(ResponseInterface $response): ResponseInterface
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{
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$this->info['previous_info'][] = $this->response->getInfo();
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return $this->response = $response;
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}
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/**
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* Replaces or removes the chunk filter iterator.
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*
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* @param ?callable(ChunkInterface, self): ?\Iterator $passthru
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*/
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public function passthru(callable $passthru = null): void
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{
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$this->passthru = $passthru ?? static function ($chunk, $context) {
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$context->passthru = null;
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yield $chunk;
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};
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}
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}
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