472 lines
18 KiB
PHP
472 lines
18 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 Psr\Log\LoggerInterface;
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use Symfony\Component\HttpClient\Chunk\FirstChunk;
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use Symfony\Component\HttpClient\Chunk\InformationalChunk;
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use Symfony\Component\HttpClient\Exception\TransportException;
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use Symfony\Component\HttpClient\Internal\Canary;
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use Symfony\Component\HttpClient\Internal\ClientState;
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use Symfony\Component\HttpClient\Internal\CurlClientState;
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use Symfony\Contracts\HttpClient\ResponseInterface;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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*
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* @internal
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*/
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final class CurlResponse implements ResponseInterface, StreamableInterface
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{
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use CommonResponseTrait {
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getContent as private doGetContent;
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}
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use TransportResponseTrait;
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private static bool $performing = false;
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private $multi;
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/**
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* @var resource
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*/
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private $debugBuffer;
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/**
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* @internal
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*/
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public function __construct(CurlClientState $multi, \CurlHandle|string $ch, array $options = null, LoggerInterface $logger = null, string $method = 'GET', callable $resolveRedirect = null, int $curlVersion = null)
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{
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$this->multi = $multi;
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if ($ch instanceof \CurlHandle) {
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$this->handle = $ch;
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$this->debugBuffer = fopen('php://temp', 'w+');
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if (0x074000 === $curlVersion) {
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fwrite($this->debugBuffer, 'Due to a bug in curl 7.64.0, the debug log is disabled; use another version to work around the issue.');
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} else {
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curl_setopt($ch, \CURLOPT_VERBOSE, true);
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curl_setopt($ch, \CURLOPT_STDERR, $this->debugBuffer);
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}
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} else {
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$this->info['url'] = $ch;
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$ch = $this->handle;
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}
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$this->id = $id = (int) $ch;
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$this->logger = $logger;
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$this->shouldBuffer = $options['buffer'] ?? true;
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$this->timeout = $options['timeout'] ?? null;
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$this->info['http_method'] = $method;
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$this->info['user_data'] = $options['user_data'] ?? null;
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$this->info['max_duration'] = $options['max_duration'] ?? null;
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$this->info['start_time'] = $this->info['start_time'] ?? microtime(true);
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$info = &$this->info;
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$headers = &$this->headers;
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$debugBuffer = $this->debugBuffer;
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if (!$info['response_headers']) {
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// Used to keep track of what we're waiting for
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curl_setopt($ch, \CURLOPT_PRIVATE, \in_array($method, ['GET', 'HEAD', 'OPTIONS', 'TRACE'], true) && 1.0 < (float) ($options['http_version'] ?? 1.1) ? 'H2' : 'H0'); // H = headers + retry counter
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}
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curl_setopt($ch, \CURLOPT_HEADERFUNCTION, static function ($ch, string $data) use (&$info, &$headers, $options, $multi, $id, &$location, $resolveRedirect, $logger): int {
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if (0 !== substr_compare($data, "\r\n", -2)) {
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return 0;
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}
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$len = 0;
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foreach (explode("\r\n", substr($data, 0, -2)) as $data) {
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$len += 2 + self::parseHeaderLine($ch, $data, $info, $headers, $options, $multi, $id, $location, $resolveRedirect, $logger);
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}
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return $len;
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});
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if (null === $options) {
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// Pushed response: buffer until requested
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curl_setopt($ch, \CURLOPT_WRITEFUNCTION, static function ($ch, string $data) use ($multi, $id): int {
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$multi->handlesActivity[$id][] = $data;
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curl_pause($ch, \CURLPAUSE_RECV);
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return \strlen($data);
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});
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return;
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}
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$execCounter = $multi->execCounter;
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$this->info['pause_handler'] = static function (float $duration) use ($ch, $multi, $execCounter) {
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if (0 < $duration) {
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if ($execCounter === $multi->execCounter) {
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$multi->execCounter = !\is_float($execCounter) ? 1 + $execCounter : \PHP_INT_MIN;
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curl_multi_remove_handle($multi->handle, $ch);
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}
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$lastExpiry = end($multi->pauseExpiries);
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$multi->pauseExpiries[(int) $ch] = $duration += microtime(true);
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if (false !== $lastExpiry && $lastExpiry > $duration) {
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asort($multi->pauseExpiries);
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}
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curl_pause($ch, \CURLPAUSE_ALL);
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} else {
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unset($multi->pauseExpiries[(int) $ch]);
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curl_pause($ch, \CURLPAUSE_CONT);
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curl_multi_add_handle($multi->handle, $ch);
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}
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};
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$this->inflate = !isset($options['normalized_headers']['accept-encoding']);
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curl_pause($ch, \CURLPAUSE_CONT);
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if ($onProgress = $options['on_progress']) {
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$url = isset($info['url']) ? ['url' => $info['url']] : [];
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curl_setopt($ch, \CURLOPT_NOPROGRESS, false);
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curl_setopt($ch, \CURLOPT_PROGRESSFUNCTION, static function ($ch, $dlSize, $dlNow) use ($onProgress, &$info, $url, $multi, $debugBuffer) {
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try {
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rewind($debugBuffer);
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$debug = ['debug' => stream_get_contents($debugBuffer)];
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$onProgress($dlNow, $dlSize, $url + curl_getinfo($ch) + $info + $debug);
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} catch (\Throwable $e) {
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$multi->handlesActivity[(int) $ch][] = null;
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$multi->handlesActivity[(int) $ch][] = $e;
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return 1; // Abort the request
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}
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return null;
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});
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}
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curl_setopt($ch, \CURLOPT_WRITEFUNCTION, static function ($ch, string $data) use ($multi, $id): int {
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if ('H' === (curl_getinfo($ch, \CURLINFO_PRIVATE)[0] ?? null)) {
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$multi->handlesActivity[$id][] = null;
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$multi->handlesActivity[$id][] = new TransportException(sprintf('Unsupported protocol for "%s"', curl_getinfo($ch, \CURLINFO_EFFECTIVE_URL)));
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return 0;
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}
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curl_setopt($ch, \CURLOPT_WRITEFUNCTION, static function ($ch, string $data) use ($multi, $id): int {
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$multi->handlesActivity[$id][] = $data;
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return \strlen($data);
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});
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$multi->handlesActivity[$id][] = $data;
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return \strlen($data);
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});
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$this->initializer = static function (self $response) {
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$waitFor = curl_getinfo($ch = $response->handle, \CURLINFO_PRIVATE);
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return 'H' === $waitFor[0];
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};
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// Schedule the request in a non-blocking way
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$multi->lastTimeout = null;
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$multi->openHandles[$id] = [$ch, $options];
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curl_multi_add_handle($multi->handle, $ch);
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$this->canary = new Canary(static function () use ($ch, $multi, $id) {
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unset($multi->pauseExpiries[$id], $multi->openHandles[$id], $multi->handlesActivity[$id]);
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curl_setopt($ch, \CURLOPT_PRIVATE, '_0');
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if (self::$performing) {
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return;
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}
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curl_multi_remove_handle($multi->handle, $ch);
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curl_setopt_array($ch, [
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\CURLOPT_NOPROGRESS => true,
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\CURLOPT_PROGRESSFUNCTION => null,
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\CURLOPT_HEADERFUNCTION => null,
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\CURLOPT_WRITEFUNCTION => null,
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\CURLOPT_READFUNCTION => null,
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\CURLOPT_INFILE => null,
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]);
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if (!$multi->openHandles) {
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// Schedule DNS cache eviction for the next request
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$multi->dnsCache->evictions = $multi->dnsCache->evictions ?: $multi->dnsCache->removals;
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$multi->dnsCache->removals = $multi->dnsCache->hostnames = [];
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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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public function getInfo(string $type = null): mixed
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{
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if (!$info = $this->finalInfo) {
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$info = array_merge($this->info, curl_getinfo($this->handle));
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$info['url'] = $this->info['url'] ?? $info['url'];
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$info['redirect_url'] = $this->info['redirect_url'] ?? null;
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// workaround curl not subtracting the time offset for pushed responses
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if (isset($this->info['url']) && $info['start_time'] / 1000 < $info['total_time']) {
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$info['total_time'] -= $info['starttransfer_time'] ?: $info['total_time'];
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$info['starttransfer_time'] = 0.0;
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}
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rewind($this->debugBuffer);
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$info['debug'] = stream_get_contents($this->debugBuffer);
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$waitFor = curl_getinfo($this->handle, \CURLINFO_PRIVATE);
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if ('H' !== $waitFor[0] && 'C' !== $waitFor[0]) {
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curl_setopt($this->handle, \CURLOPT_VERBOSE, false);
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rewind($this->debugBuffer);
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ftruncate($this->debugBuffer, 0);
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$this->finalInfo = $info;
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}
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}
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return null !== $type ? $info[$type] ?? null : $info;
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}
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/**
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* {@inheritdoc}
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*/
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public function getContent(bool $throw = true): string
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{
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$performing = self::$performing;
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self::$performing = $performing || '_0' === curl_getinfo($this->handle, \CURLINFO_PRIVATE);
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try {
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return $this->doGetContent($throw);
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} finally {
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self::$performing = $performing;
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}
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}
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public function __destruct()
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{
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try {
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if (null === $this->timeout) {
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return; // Unused pushed response
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}
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$this->doDestruct();
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} finally {
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if (\is_resource($this->handle) || $this->handle instanceof \CurlHandle) {
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curl_setopt($this->handle, \CURLOPT_VERBOSE, false);
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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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private static function schedule(self $response, array &$runningResponses): void
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{
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if (isset($runningResponses[$i = (int) $response->multi->handle])) {
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$runningResponses[$i][1][$response->id] = $response;
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} else {
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$runningResponses[$i] = [$response->multi, [$response->id => $response]];
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}
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if ('_0' === curl_getinfo($ch = $response->handle, \CURLINFO_PRIVATE)) {
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// Response already completed
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$response->multi->handlesActivity[$response->id][] = null;
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$response->multi->handlesActivity[$response->id][] = null !== $response->info['error'] ? new TransportException($response->info['error']) : null;
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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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* @param CurlClientState $multi
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*/
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private static function perform(ClientState $multi, array &$responses = null): void
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{
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if (self::$performing) {
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if ($responses) {
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$response = current($responses);
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$multi->handlesActivity[(int) $response->handle][] = null;
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$multi->handlesActivity[(int) $response->handle][] = new TransportException(sprintf('Userland callback cannot use the client nor the response while processing "%s".', curl_getinfo($response->handle, \CURLINFO_EFFECTIVE_URL)));
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}
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return;
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}
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try {
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self::$performing = true;
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++$multi->execCounter;
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$active = 0;
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while (\CURLM_CALL_MULTI_PERFORM === ($err = curl_multi_exec($multi->handle, $active))) {
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}
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if (\CURLM_OK !== $err) {
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throw new TransportException(curl_multi_strerror($err));
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}
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while ($info = curl_multi_info_read($multi->handle)) {
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if (\CURLMSG_DONE !== $info['msg']) {
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continue;
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}
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$result = $info['result'];
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$id = (int) $ch = $info['handle'];
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$waitFor = @curl_getinfo($ch, \CURLINFO_PRIVATE) ?: '_0';
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if (\in_array($result, [\CURLE_SEND_ERROR, \CURLE_RECV_ERROR, /* CURLE_HTTP2 */ 16, /* CURLE_HTTP2_STREAM */ 92], true) && $waitFor[1] && 'C' !== $waitFor[0]) {
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curl_multi_remove_handle($multi->handle, $ch);
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$waitFor[1] = (string) ((int) $waitFor[1] - 1); // decrement the retry counter
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curl_setopt($ch, \CURLOPT_PRIVATE, $waitFor);
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curl_setopt($ch, \CURLOPT_FORBID_REUSE, true);
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if (0 === curl_multi_add_handle($multi->handle, $ch)) {
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continue;
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}
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}
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if (\CURLE_RECV_ERROR === $result && 'H' === $waitFor[0] && 400 <= ($responses[(int) $ch]->info['http_code'] ?? 0)) {
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$multi->handlesActivity[$id][] = new FirstChunk();
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}
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$multi->handlesActivity[$id][] = null;
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$multi->handlesActivity[$id][] = \in_array($result, [\CURLE_OK, \CURLE_TOO_MANY_REDIRECTS], true) || '_0' === $waitFor || curl_getinfo($ch, \CURLINFO_SIZE_DOWNLOAD) === curl_getinfo($ch, \CURLINFO_CONTENT_LENGTH_DOWNLOAD) ? null : new TransportException(ucfirst(curl_error($ch) ?: curl_strerror($result)).sprintf(' for "%s".', curl_getinfo($ch, \CURLINFO_EFFECTIVE_URL)));
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}
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} finally {
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self::$performing = false;
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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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*
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||
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* @param CurlClientState $multi
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||
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*/
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||
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private static function select(ClientState $multi, float $timeout): int
|
||
|
|
{
|
||
|
|
if ($multi->pauseExpiries) {
|
||
|
|
$now = microtime(true);
|
||
|
|
|
||
|
|
foreach ($multi->pauseExpiries as $id => $pauseExpiry) {
|
||
|
|
if ($now < $pauseExpiry) {
|
||
|
|
$timeout = min($timeout, $pauseExpiry - $now);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
unset($multi->pauseExpiries[$id]);
|
||
|
|
curl_pause($multi->openHandles[$id][0], \CURLPAUSE_CONT);
|
||
|
|
curl_multi_add_handle($multi->handle, $multi->openHandles[$id][0]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (0 !== $selected = curl_multi_select($multi->handle, $timeout)) {
|
||
|
|
return $selected;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($multi->pauseExpiries && 0 < $timeout -= microtime(true) - $now) {
|
||
|
|
usleep((int) (1E6 * $timeout));
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parses header lines as curl yields them to us.
|
||
|
|
*/
|
||
|
|
private static function parseHeaderLine($ch, string $data, array &$info, array &$headers, ?array $options, CurlClientState $multi, int $id, ?string &$location, ?callable $resolveRedirect, ?LoggerInterface $logger): int
|
||
|
|
{
|
||
|
|
$waitFor = @curl_getinfo($ch, \CURLINFO_PRIVATE) ?: '_0';
|
||
|
|
|
||
|
|
if ('H' !== $waitFor[0]) {
|
||
|
|
return \strlen($data); // Ignore HTTP trailers
|
||
|
|
}
|
||
|
|
|
||
|
|
if ('' !== $data) {
|
||
|
|
// Regular header line: add it to the list
|
||
|
|
self::addResponseHeaders([$data], $info, $headers);
|
||
|
|
|
||
|
|
if (!str_starts_with($data, 'HTTP/')) {
|
||
|
|
if (0 === stripos($data, 'Location:')) {
|
||
|
|
$location = trim(substr($data, 9));
|
||
|
|
}
|
||
|
|
|
||
|
|
return \strlen($data);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (\function_exists('openssl_x509_read') && $certinfo = curl_getinfo($ch, \CURLINFO_CERTINFO)) {
|
||
|
|
$info['peer_certificate_chain'] = array_map('openssl_x509_read', array_column($certinfo, 'Cert'));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (300 <= $info['http_code'] && $info['http_code'] < 400) {
|
||
|
|
if (curl_getinfo($ch, \CURLINFO_REDIRECT_COUNT) === $options['max_redirects']) {
|
||
|
|
curl_setopt($ch, \CURLOPT_FOLLOWLOCATION, false);
|
||
|
|
} elseif (303 === $info['http_code'] || ('POST' === $info['http_method'] && \in_array($info['http_code'], [301, 302], true))) {
|
||
|
|
curl_setopt($ch, \CURLOPT_POSTFIELDS, '');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return \strlen($data);
|
||
|
|
}
|
||
|
|
|
||
|
|
// End of headers: handle informational responses, redirects, etc.
|
||
|
|
|
||
|
|
if (200 > $statusCode = curl_getinfo($ch, \CURLINFO_RESPONSE_CODE)) {
|
||
|
|
$multi->handlesActivity[$id][] = new InformationalChunk($statusCode, $headers);
|
||
|
|
$location = null;
|
||
|
|
|
||
|
|
return \strlen($data);
|
||
|
|
}
|
||
|
|
|
||
|
|
$info['redirect_url'] = null;
|
||
|
|
|
||
|
|
if (300 <= $statusCode && $statusCode < 400 && null !== $location) {
|
||
|
|
if ($noContent = 303 === $statusCode || ('POST' === $info['http_method'] && \in_array($statusCode, [301, 302], true))) {
|
||
|
|
$info['http_method'] = 'HEAD' === $info['http_method'] ? 'HEAD' : 'GET';
|
||
|
|
curl_setopt($ch, \CURLOPT_CUSTOMREQUEST, $info['http_method']);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null === $info['redirect_url'] = $resolveRedirect($ch, $location, $noContent)) {
|
||
|
|
$options['max_redirects'] = curl_getinfo($ch, \CURLINFO_REDIRECT_COUNT);
|
||
|
|
curl_setopt($ch, \CURLOPT_FOLLOWLOCATION, false);
|
||
|
|
curl_setopt($ch, \CURLOPT_MAXREDIRS, $options['max_redirects']);
|
||
|
|
} else {
|
||
|
|
$url = parse_url($location ?? ':');
|
||
|
|
|
||
|
|
if (isset($url['host']) && null !== $ip = $multi->dnsCache->hostnames[$url['host'] = strtolower($url['host'])] ?? null) {
|
||
|
|
// Populate DNS cache for redirects if needed
|
||
|
|
$port = $url['port'] ?? ('http' === ($url['scheme'] ?? parse_url(curl_getinfo($ch, \CURLINFO_EFFECTIVE_URL), \PHP_URL_SCHEME)) ? 80 : 443);
|
||
|
|
curl_setopt($ch, \CURLOPT_RESOLVE, ["{$url['host']}:$port:$ip"]);
|
||
|
|
$multi->dnsCache->removals["-{$url['host']}:$port"] = "-{$url['host']}:$port";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (401 === $statusCode && isset($options['auth_ntlm']) && 0 === strncasecmp($headers['www-authenticate'][0] ?? '', 'NTLM ', 5)) {
|
||
|
|
// Continue with NTLM auth
|
||
|
|
} elseif ($statusCode < 300 || 400 <= $statusCode || null === $location || curl_getinfo($ch, \CURLINFO_REDIRECT_COUNT) === $options['max_redirects']) {
|
||
|
|
// Headers and redirects completed, time to get the response's content
|
||
|
|
$multi->handlesActivity[$id][] = new FirstChunk();
|
||
|
|
|
||
|
|
if ('HEAD' === $info['http_method'] || \in_array($statusCode, [204, 304], true)) {
|
||
|
|
$waitFor = '_0'; // no content expected
|
||
|
|
$multi->handlesActivity[$id][] = null;
|
||
|
|
$multi->handlesActivity[$id][] = null;
|
||
|
|
} else {
|
||
|
|
$waitFor[0] = 'C'; // C = content
|
||
|
|
}
|
||
|
|
|
||
|
|
curl_setopt($ch, \CURLOPT_PRIVATE, $waitFor);
|
||
|
|
} elseif (null !== $info['redirect_url'] && $logger) {
|
||
|
|
$logger->info(sprintf('Redirecting: "%s %s"', $info['http_code'], $info['redirect_url']));
|
||
|
|
}
|
||
|
|
|
||
|
|
$location = null;
|
||
|
|
|
||
|
|
return \strlen($data);
|
||
|
|
}
|
||
|
|
}
|