302 lines
10 KiB
PHP
302 lines
10 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\ErrorChunk;
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use Symfony\Component\HttpClient\Chunk\FirstChunk;
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use Symfony\Component\HttpClient\Exception\InvalidArgumentException;
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use Symfony\Component\HttpClient\Exception\TransportException;
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use Symfony\Component\HttpClient\Internal\ClientState;
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use Symfony\Contracts\HttpClient\ResponseInterface;
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/**
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* A test-friendly response.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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class MockResponse implements ResponseInterface
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{
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use ResponseTrait {
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doDestruct as public __destruct;
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}
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private $body;
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private $requestOptions = [];
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private static $mainMulti;
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private static $idSequence = 0;
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/**
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* @param string|string[]|iterable $body The response body as a string or an iterable of strings,
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* yielding an empty string simulates an idle timeout,
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* exceptions are turned to TransportException
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*
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* @see ResponseInterface::getInfo() for possible info, e.g. "response_headers"
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*/
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public function __construct($body = '', array $info = [])
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{
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$this->body = is_iterable($body) ? $body : (string) $body;
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$this->info = $info + ['http_code' => 200] + $this->info;
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if (!isset($info['response_headers'])) {
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return;
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}
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$responseHeaders = [];
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foreach ($info['response_headers'] as $k => $v) {
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foreach ((array) $v as $v) {
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$responseHeaders[] = (\is_string($k) ? $k.': ' : '').$v;
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}
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}
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$this->info['response_headers'] = [];
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self::addResponseHeaders($responseHeaders, $this->info, $this->headers);
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}
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/**
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* Returns the options used when doing the request.
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*/
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public function getRequestOptions(): array
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{
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return $this->requestOptions;
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}
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/**
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* {@inheritdoc}
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*/
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public function getInfo(string $type = null)
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{
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return null !== $type ? $this->info[$type] ?? null : $this->info;
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}
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/**
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* {@inheritdoc}
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*/
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public function cancel(): void
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{
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$this->info['canceled'] = true;
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$this->info['error'] = 'Response has been canceled.';
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$this->body = null;
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}
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/**
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* {@inheritdoc}
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*/
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protected function close(): void
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{
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$this->inflate = null;
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$this->body = [];
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}
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/**
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* @internal
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*/
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public static function fromRequest(string $method, string $url, array $options, ResponseInterface $mock): self
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{
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$response = new self([]);
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$response->requestOptions = $options;
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$response->id = ++self::$idSequence;
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$response->shouldBuffer = $options['buffer'] ?? true;
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$response->initializer = static function (self $response) {
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return \is_array($response->body[0] ?? null);
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};
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$response->info['redirect_count'] = 0;
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$response->info['redirect_url'] = null;
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$response->info['start_time'] = microtime(true);
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$response->info['http_method'] = $method;
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$response->info['http_code'] = 0;
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$response->info['user_data'] = $options['user_data'] ?? null;
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$response->info['url'] = $url;
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if ($mock instanceof self) {
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$mock->requestOptions = $response->requestOptions;
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}
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self::writeRequest($response, $options, $mock);
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$response->body[] = [$options, $mock];
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return $response;
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}
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/**
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* {@inheritdoc}
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*/
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protected static function schedule(self $response, array &$runningResponses): void
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{
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if (!$response->id) {
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throw new InvalidArgumentException('MockResponse instances must be issued by MockHttpClient before processing.');
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}
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$multi = self::$mainMulti ?? self::$mainMulti = new ClientState();
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if (!isset($runningResponses[0])) {
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$runningResponses[0] = [$multi, []];
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}
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$runningResponses[0][1][$response->id] = $response;
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}
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/**
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* {@inheritdoc}
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*/
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protected static function perform(ClientState $multi, array &$responses): void
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{
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foreach ($responses as $response) {
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$id = $response->id;
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if (null === $response->body) {
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// Canceled response
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$response->body = [];
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} elseif ([] === $response->body) {
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// Error chunk
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$multi->handlesActivity[$id][] = null;
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$multi->handlesActivity[$id][] = null !== $response->info['error'] ? new TransportException($response->info['error']) : null;
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} elseif (null === $chunk = array_shift($response->body)) {
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// Last chunk
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$multi->handlesActivity[$id][] = null;
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$multi->handlesActivity[$id][] = array_shift($response->body);
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} elseif (\is_array($chunk)) {
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// First chunk
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try {
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$offset = 0;
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$chunk[1]->getStatusCode();
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$chunk[1]->getHeaders(false);
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self::readResponse($response, $chunk[0], $chunk[1], $offset);
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$multi->handlesActivity[$id][] = new FirstChunk();
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$buffer = $response->requestOptions['buffer'] ?? null;
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if ($buffer instanceof \Closure && $response->content = $buffer($response->headers) ?: null) {
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$response->content = \is_resource($response->content) ? $response->content : fopen('php://temp', 'w+');
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}
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} catch (\Throwable $e) {
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$multi->handlesActivity[$id][] = null;
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$multi->handlesActivity[$id][] = $e;
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}
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} else {
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// Data or timeout chunk
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$multi->handlesActivity[$id][] = $chunk;
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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protected static function select(ClientState $multi, float $timeout): int
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{
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return 42;
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}
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/**
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* Simulates sending the request.
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*/
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private static function writeRequest(self $response, array $options, ResponseInterface $mock)
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{
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$onProgress = $options['on_progress'] ?? static function () {};
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$response->info += $mock->getInfo() ?: [];
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// simulate "size_upload" if it is set
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if (isset($response->info['size_upload'])) {
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$response->info['size_upload'] = 0.0;
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}
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// simulate "total_time" if it is set
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if (isset($response->info['total_time'])) {
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$response->info['total_time'] = microtime(true) - $response->info['start_time'];
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}
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// "notify" DNS resolution
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$onProgress(0, 0, $response->info);
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// consume the request body
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if (\is_resource($body = $options['body'] ?? '')) {
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$data = stream_get_contents($body);
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if (isset($response->info['size_upload'])) {
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$response->info['size_upload'] += \strlen($data);
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}
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} elseif ($body instanceof \Closure) {
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while ('' !== $data = $body(16372)) {
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if (!\is_string($data)) {
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throw new TransportException(sprintf('Return value of the "body" option callback must be string, "%s" returned.', \gettype($data)));
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}
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// "notify" upload progress
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if (isset($response->info['size_upload'])) {
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$response->info['size_upload'] += \strlen($data);
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}
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$onProgress(0, 0, $response->info);
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}
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}
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}
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/**
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* Simulates reading the response.
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*/
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private static function readResponse(self $response, array $options, ResponseInterface $mock, int &$offset)
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{
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$onProgress = $options['on_progress'] ?? static function () {};
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// populate info related to headers
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$info = $mock->getInfo() ?: [];
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$response->info['http_code'] = ($info['http_code'] ?? 0) ?: $mock->getStatusCode() ?: 200;
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$response->addResponseHeaders($info['response_headers'] ?? [], $response->info, $response->headers);
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$dlSize = isset($response->headers['content-encoding']) || 'HEAD' === $response->info['http_method'] || \in_array($response->info['http_code'], [204, 304], true) ? 0 : (int) ($response->headers['content-length'][0] ?? 0);
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$response->info = [
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'start_time' => $response->info['start_time'],
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'user_data' => $response->info['user_data'],
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'http_code' => $response->info['http_code'],
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] + $info + $response->info;
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if (isset($response->info['total_time'])) {
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$response->info['total_time'] = microtime(true) - $response->info['start_time'];
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}
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// "notify" headers arrival
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$onProgress(0, $dlSize, $response->info);
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// cast response body to activity list
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$body = $mock instanceof self ? $mock->body : $mock->getContent(false);
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if (!\is_string($body)) {
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foreach ($body as $chunk) {
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if ('' === $chunk = (string) $chunk) {
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// simulate an idle timeout
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$response->body[] = new ErrorChunk($offset, sprintf('Idle timeout reached for "%s".', $response->info['url']));
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} else {
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$response->body[] = $chunk;
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$offset += \strlen($chunk);
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// "notify" download progress
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$onProgress($offset, $dlSize, $response->info);
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}
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}
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} elseif ('' !== $body) {
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$response->body[] = $body;
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$offset = \strlen($body);
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}
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if (isset($response->info['total_time'])) {
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$response->info['total_time'] = microtime(true) - $response->info['start_time'];
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}
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// "notify" completion
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$onProgress($offset, $dlSize, $response->info);
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if ($dlSize && $offset !== $dlSize) {
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throw new TransportException(sprintf('Transfer closed with %d bytes remaining to read.', $dlSize - $offset));
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}
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}
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}
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