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<?php |
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namespace GuzzleHttp\Handler; |
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use GuzzleHttp\Exception\ConnectException; |
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use GuzzleHttp\Exception\RequestException; |
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use GuzzleHttp\Promise as P; |
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use GuzzleHttp\Promise\FulfilledPromise; |
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use GuzzleHttp\Promise\PromiseInterface; |
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use GuzzleHttp\Psr7; |
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use GuzzleHttp\TransferStats; |
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use GuzzleHttp\Utils; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\StreamInterface; |
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use Psr\Http\Message\UriInterface; |
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/** |
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* HTTP handler that uses PHP's HTTP stream wrapper. |
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* |
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* @final |
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*/ |
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class StreamHandler |
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{ |
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/** |
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* @var array |
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*/ |
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private $lastHeaders = []; |
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/** |
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* Sends an HTTP request. |
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* |
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* @param RequestInterface $request Request to send. |
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* @param array $options Request transfer options. |
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*/ |
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public function __invoke(RequestInterface $request, array $options): PromiseInterface |
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{ |
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// Sleep if there is a delay specified. |
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if (isset($options['delay'])) { |
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\usleep($options['delay'] * 1000); |
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} |
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$startTime = isset($options['on_stats']) ? Utils::currentTime() : null; |
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try { |
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// Does not support the expect header. |
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$request = $request->withoutHeader('Expect'); |
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// Append a content-length header if body size is zero to match |
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// cURL's behavior. |
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if (0 === $request->getBody()->getSize()) { |
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$request = $request->withHeader('Content-Length', '0'); |
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} |
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return $this->createResponse( |
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$request, |
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$options, |
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$this->createStream($request, $options), |
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$startTime |
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); |
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} catch (\InvalidArgumentException $e) { |
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throw $e; |
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} catch (\Exception $e) { |
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// Determine if the error was a networking error. |
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$message = $e->getMessage(); |
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// This list can probably get more comprehensive. |
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if (false !== \strpos($message, 'getaddrinfo') // DNS lookup failed |
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|| false !== \strpos($message, 'Connection refused') |
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|| false !== \strpos($message, "couldn't connect to host") // error on HHVM |
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|| false !== \strpos($message, "connection attempt failed") |
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) { |
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$e = new ConnectException($e->getMessage(), $request, $e); |
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} else { |
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$e = RequestException::wrapException($request, $e); |
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} |
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$this->invokeStats($options, $request, $startTime, null, $e); |
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return P\Create::rejectionFor($e); |
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} |
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} |
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private function invokeStats( |
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array $options, |
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RequestInterface $request, |
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?float $startTime, |
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ResponseInterface $response = null, |
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\Throwable $error = null |
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): void { |
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if (isset($options['on_stats'])) { |
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$stats = new TransferStats($request, $response, Utils::currentTime() - $startTime, $error, []); |
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($options['on_stats'])($stats); |
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} |
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} |
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/** |
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* @param resource $stream |
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*/ |
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private function createResponse(RequestInterface $request, array $options, $stream, ?float $startTime): PromiseInterface |
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{ |
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$hdrs = $this->lastHeaders; |
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$this->lastHeaders = []; |
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try { |
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[$ver, $status, $reason, $headers] = HeaderProcessor::parseHeaders($hdrs); |
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} catch (\Exception $e) { |
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return P\Create::rejectionFor( |
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new RequestException('An error was encountered while creating the response', $request, null, $e) |
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); |
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} |
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[$stream, $headers] = $this->checkDecode($options, $headers, $stream); |
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$stream = Psr7\Utils::streamFor($stream); |
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$sink = $stream; |
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if (\strcasecmp('HEAD', $request->getMethod())) { |
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$sink = $this->createSink($stream, $options); |
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} |
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try { |
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$response = new Psr7\Response($status, $headers, $sink, $ver, $reason); |
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} catch (\Exception $e) { |
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return P\Create::rejectionFor( |
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new RequestException('An error was encountered while creating the response', $request, null, $e) |
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); |
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} |
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if (isset($options['on_headers'])) { |
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try { |
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$options['on_headers']($response); |
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} catch (\Exception $e) { |
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return P\Create::rejectionFor( |
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new RequestException('An error was encountered during the on_headers event', $request, $response, $e) |
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); |
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} |
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} |
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// Do not drain when the request is a HEAD request because they have |
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// no body. |
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if ($sink !== $stream) { |
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$this->drain($stream, $sink, $response->getHeaderLine('Content-Length')); |
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} |
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$this->invokeStats($options, $request, $startTime, $response, null); |
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return new FulfilledPromise($response); |
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} |
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private function createSink(StreamInterface $stream, array $options): StreamInterface |
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{ |
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if (!empty($options['stream'])) { |
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return $stream; |
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} |
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$sink = $options['sink'] ?? Psr7\Utils::tryFopen('php://temp', 'r+'); |
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return \is_string($sink) ? new Psr7\LazyOpenStream($sink, 'w+') : Psr7\Utils::streamFor($sink); |
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} |
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/** |
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* @param resource $stream |
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*/ |
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private function checkDecode(array $options, array $headers, $stream): array |
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{ |
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// Automatically decode responses when instructed. |
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if (!empty($options['decode_content'])) { |
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$normalizedKeys = Utils::normalizeHeaderKeys($headers); |
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if (isset($normalizedKeys['content-encoding'])) { |
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$encoding = $headers[$normalizedKeys['content-encoding']]; |
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if ($encoding[0] === 'gzip' || $encoding[0] === 'deflate') { |
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$stream = new Psr7\InflateStream(Psr7\Utils::streamFor($stream)); |
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$headers['x-encoded-content-encoding'] = $headers[$normalizedKeys['content-encoding']]; |
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// Remove content-encoding header |
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unset($headers[$normalizedKeys['content-encoding']]); |
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// Fix content-length header |
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if (isset($normalizedKeys['content-length'])) { |
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$headers['x-encoded-content-length'] = $headers[$normalizedKeys['content-length']]; |
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$length = (int) $stream->getSize(); |
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if ($length === 0) { |
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unset($headers[$normalizedKeys['content-length']]); |
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} else { |
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$headers[$normalizedKeys['content-length']] = [$length]; |
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} |
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} |
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} |
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} |
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} |
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return [$stream, $headers]; |
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} |
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/** |
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* Drains the source stream into the "sink" client option. |
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* |
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* @param string $contentLength Header specifying the amount of |
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* data to read. |
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* |
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* @throws \RuntimeException when the sink option is invalid. |
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*/ |
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private function drain(StreamInterface $source, StreamInterface $sink, string $contentLength): StreamInterface |
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{ |
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// If a content-length header is provided, then stop reading once |
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// that number of bytes has been read. This can prevent infinitely |
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// reading from a stream when dealing with servers that do not honor |
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// Connection: Close headers. |
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Psr7\Utils::copyToStream( |
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$source, |
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$sink, |
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(\strlen($contentLength) > 0 && (int) $contentLength > 0) ? (int) $contentLength : -1 |
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); |
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$sink->seek(0); |
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$source->close(); |
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return $sink; |
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} |
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/** |
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* Create a resource and check to ensure it was created successfully |
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* |
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* @param callable $callback Callable that returns stream resource |
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* |
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* @return resource |
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* |
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* @throws \RuntimeException on error |
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*/ |
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private function createResource(callable $callback) |
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{ |
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$errors = []; |
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\set_error_handler(static function ($_, $msg, $file, $line) use (&$errors): bool { |
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$errors[] = [ |
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'message' => $msg, |
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'file' => $file, |
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'line' => $line |
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]; |
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return true; |
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}); |
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$resource = $callback(); |
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\restore_error_handler(); |
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if (!$resource) { |
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$message = 'Error creating resource: '; |
245
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foreach ($errors as $err) { |
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foreach ($err as $key => $value) { |
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$message .= "[$key] $value" . \PHP_EOL; |
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} |
249
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} |
250
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throw new \RuntimeException(\trim($message)); |
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} |
252
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253
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return $resource; |
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} |
255
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256
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/** |
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* @return resource |
258
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*/ |
259
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private function createStream(RequestInterface $request, array $options) |
260
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{ |
261
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static $methods; |
262
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if (!$methods) { |
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$methods = \array_flip(\get_class_methods(__CLASS__)); |
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} |
265
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266
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// HTTP/1.1 streams using the PHP stream wrapper require a |
267
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// Connection: close header |
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if ($request->getProtocolVersion() == '1.1' |
269
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&& !$request->hasHeader('Connection') |
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) { |
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$request = $request->withHeader('Connection', 'close'); |
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} |
273
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274
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// Ensure SSL is verified by default |
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if (!isset($options['verify'])) { |
276
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$options['verify'] = true; |
277
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} |
278
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279
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$params = []; |
280
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$context = $this->getDefaultContext($request); |
281
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282
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if (isset($options['on_headers']) && !\is_callable($options['on_headers'])) { |
283
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throw new \InvalidArgumentException('on_headers must be callable'); |
284
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} |
285
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286
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if (!empty($options)) { |
287
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foreach ($options as $key => $value) { |
288
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$method = "add_{$key}"; |
289
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if (isset($methods[$method])) { |
290
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$this->{$method}($request, $context, $value, $params); |
291
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} |
292
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} |
293
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} |
294
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295
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if (isset($options['stream_context'])) { |
296
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if (!\is_array($options['stream_context'])) { |
297
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throw new \InvalidArgumentException('stream_context must be an array'); |
298
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} |
299
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$context = \array_replace_recursive($context, $options['stream_context']); |
300
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} |
301
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302
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// Microsoft NTLM authentication only supported with curl handler |
303
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if (isset($options['auth'][2]) && 'ntlm' === $options['auth'][2]) { |
304
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throw new \InvalidArgumentException('Microsoft NTLM authentication only supported with curl handler'); |
305
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} |
306
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307
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$uri = $this->resolveHost($request, $options); |
308
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309
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$contextResource = $this->createResource( |
310
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static function () use ($context, $params) { |
311
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return \stream_context_create($context, $params); |
312
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} |
313
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); |
314
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|
315
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return $this->createResource( |
316
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function () use ($uri, &$http_response_header, $contextResource, $context, $options, $request) { |
317
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$resource = @\fopen((string) $uri, 'r', false, $contextResource); |
318
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$this->lastHeaders = $http_response_header; |
319
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320
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if (false === $resource) { |
321
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throw new ConnectException(sprintf('Connection refused for URI %s', $uri), $request, null, $context); |
322
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} |
323
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|
324
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if (isset($options['read_timeout'])) { |
325
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$readTimeout = $options['read_timeout']; |
326
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$sec = (int) $readTimeout; |
327
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$usec = ($readTimeout - $sec) * 100000; |
328
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\stream_set_timeout($resource, $sec, $usec); |
329
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} |
330
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|
331
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return $resource; |
332
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} |
333
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); |
334
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} |
335
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|
336
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private function resolveHost(RequestInterface $request, array $options): UriInterface |
337
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{ |
338
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$uri = $request->getUri(); |
339
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340
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if (isset($options['force_ip_resolve']) && !\filter_var($uri->getHost(), \FILTER_VALIDATE_IP)) { |
341
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if ('v4' === $options['force_ip_resolve']) { |
342
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$records = \dns_get_record($uri->getHost(), \DNS_A); |
343
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if (false === $records || !isset($records[0]['ip'])) { |
344
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throw new ConnectException(\sprintf("Could not resolve IPv4 address for host '%s'", $uri->getHost()), $request); |
345
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} |
346
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return $uri->withHost($records[0]['ip']); |
347
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} |
348
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if ('v6' === $options['force_ip_resolve']) { |
349
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$records = \dns_get_record($uri->getHost(), \DNS_AAAA); |
350
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if (false === $records || !isset($records[0]['ipv6'])) { |
351
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throw new ConnectException(\sprintf("Could not resolve IPv6 address for host '%s'", $uri->getHost()), $request); |
352
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} |
353
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return $uri->withHost('[' . $records[0]['ipv6'] . ']'); |
354
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} |
355
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} |
356
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|
357
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return $uri; |
358
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} |
359
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|
360
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|
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private function getDefaultContext(RequestInterface $request): array |
361
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|
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{ |
362
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$headers = ''; |
363
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|
|
foreach ($request->getHeaders() as $name => $value) { |
364
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|
foreach ($value as $val) { |
365
|
|
|
$headers .= "$name: $val\r\n"; |
366
|
|
|
} |
367
|
|
|
} |
368
|
|
|
|
369
|
|
|
$context = [ |
370
|
|
|
'http' => [ |
371
|
|
|
'method' => $request->getMethod(), |
372
|
|
|
'header' => $headers, |
373
|
|
|
'protocol_version' => $request->getProtocolVersion(), |
374
|
|
|
'ignore_errors' => true, |
375
|
|
|
'follow_location' => 0, |
376
|
|
|
], |
377
|
|
|
]; |
378
|
|
|
|
379
|
|
|
$body = (string) $request->getBody(); |
380
|
|
|
|
381
|
|
|
if (!empty($body)) { |
382
|
|
|
$context['http']['content'] = $body; |
383
|
|
|
// Prevent the HTTP handler from adding a Content-Type header. |
384
|
|
|
if (!$request->hasHeader('Content-Type')) { |
385
|
|
|
$context['http']['header'] .= "Content-Type:\r\n"; |
386
|
|
|
} |
387
|
|
|
} |
388
|
|
|
|
389
|
|
|
$context['http']['header'] = \rtrim($context['http']['header']); |
390
|
|
|
|
391
|
|
|
return $context; |
392
|
|
|
} |
393
|
|
|
|
394
|
|
|
/** |
395
|
|
|
* @param mixed $value as passed via Request transfer options. |
396
|
|
|
*/ |
397
|
|
|
private function add_proxy(RequestInterface $request, array &$options, $value, array &$params): void |
|
|
|
|
398
|
|
|
{ |
399
|
|
|
$uri = null; |
400
|
|
|
|
401
|
|
|
if (!\is_array($value)) { |
402
|
|
|
$uri = $value; |
403
|
|
|
} else { |
404
|
|
|
$scheme = $request->getUri()->getScheme(); |
405
|
|
|
if (isset($value[$scheme])) { |
406
|
|
|
if (!isset($value['no']) || !Utils::isHostInNoProxy($request->getUri()->getHost(), $value['no'])) { |
407
|
|
|
$uri = $value[$scheme]; |
408
|
|
|
} |
409
|
|
|
} |
410
|
|
|
} |
411
|
|
|
|
412
|
|
|
if (!$uri) { |
413
|
|
|
return; |
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
$parsed = $this->parse_proxy($uri); |
417
|
|
|
$options['http']['proxy'] = $parsed['proxy']; |
418
|
|
|
|
419
|
|
|
if ($parsed['auth']) { |
420
|
|
|
if (!isset($options['http']['header'])) { |
421
|
|
|
$options['http']['header'] = []; |
422
|
|
|
} |
423
|
|
|
$options['http']['header'] .= "\r\nProxy-Authorization: {$parsed['auth']}"; |
424
|
|
|
} |
425
|
|
|
} |
426
|
|
|
|
427
|
|
|
/** |
428
|
|
|
* Parses the given proxy URL to make it compatible with the format PHP's stream context expects. |
429
|
|
|
*/ |
430
|
|
|
private function parse_proxy(string $url): array |
431
|
|
|
{ |
432
|
|
|
$parsed = \parse_url($url); |
433
|
|
|
|
434
|
|
|
if ($parsed !== false && isset($parsed['scheme']) && $parsed['scheme'] === 'http') { |
435
|
|
|
if (isset($parsed['host']) && isset($parsed['port'])) { |
436
|
|
|
$auth = null; |
437
|
|
|
if (isset($parsed['user']) && isset($parsed['pass'])) { |
438
|
|
|
$auth = \base64_encode("{$parsed['user']}:{$parsed['pass']}"); |
439
|
|
|
} |
440
|
|
|
|
441
|
|
|
return [ |
442
|
|
|
'proxy' => "tcp://{$parsed['host']}:{$parsed['port']}", |
443
|
|
|
'auth' => $auth ? "Basic {$auth}" : null, |
444
|
|
|
]; |
445
|
|
|
} |
446
|
|
|
} |
447
|
|
|
|
448
|
|
|
// Return proxy as-is. |
449
|
|
|
return [ |
450
|
|
|
'proxy' => $url, |
451
|
|
|
'auth' => null, |
452
|
|
|
]; |
453
|
|
|
} |
454
|
|
|
|
455
|
|
|
/** |
456
|
|
|
* @param mixed $value as passed via Request transfer options. |
457
|
|
|
*/ |
458
|
|
|
private function add_timeout(RequestInterface $request, array &$options, $value, array &$params): void |
|
|
|
|
459
|
|
|
{ |
460
|
|
|
if ($value > 0) { |
461
|
|
|
$options['http']['timeout'] = $value; |
462
|
|
|
} |
463
|
|
|
} |
464
|
|
|
|
465
|
|
|
/** |
466
|
|
|
* @param mixed $value as passed via Request transfer options. |
467
|
|
|
*/ |
468
|
|
|
private function add_verify(RequestInterface $request, array &$options, $value, array &$params): void |
|
|
|
|
469
|
|
|
{ |
470
|
|
|
if ($value === false) { |
471
|
|
|
$options['ssl']['verify_peer'] = false; |
472
|
|
|
$options['ssl']['verify_peer_name'] = false; |
473
|
|
|
|
474
|
|
|
return; |
475
|
|
|
} |
476
|
|
|
|
477
|
|
|
if (\is_string($value)) { |
478
|
|
|
$options['ssl']['cafile'] = $value; |
479
|
|
|
if (!\file_exists($value)) { |
480
|
|
|
throw new \RuntimeException("SSL CA bundle not found: $value"); |
481
|
|
|
} |
482
|
|
|
} elseif ($value !== true) { |
483
|
|
|
throw new \InvalidArgumentException('Invalid verify request option'); |
484
|
|
|
} |
485
|
|
|
|
486
|
|
|
$options['ssl']['verify_peer'] = true; |
487
|
|
|
$options['ssl']['verify_peer_name'] = true; |
488
|
|
|
$options['ssl']['allow_self_signed'] = false; |
489
|
|
|
} |
490
|
|
|
|
491
|
|
|
/** |
492
|
|
|
* @param mixed $value as passed via Request transfer options. |
493
|
|
|
*/ |
494
|
|
|
private function add_cert(RequestInterface $request, array &$options, $value, array &$params): void |
|
|
|
|
495
|
|
|
{ |
496
|
|
|
if (\is_array($value)) { |
497
|
|
|
$options['ssl']['passphrase'] = $value[1]; |
498
|
|
|
$value = $value[0]; |
499
|
|
|
} |
500
|
|
|
|
501
|
|
|
if (!\file_exists($value)) { |
502
|
|
|
throw new \RuntimeException("SSL certificate not found: {$value}"); |
503
|
|
|
} |
504
|
|
|
|
505
|
|
|
$options['ssl']['local_cert'] = $value; |
506
|
|
|
} |
507
|
|
|
|
508
|
|
|
/** |
509
|
|
|
* @param mixed $value as passed via Request transfer options. |
510
|
|
|
*/ |
511
|
|
|
private function add_progress(RequestInterface $request, array &$options, $value, array &$params): void |
|
|
|
|
512
|
|
|
{ |
513
|
|
|
self::addNotification( |
514
|
|
|
$params, |
515
|
|
|
static function ($code, $a, $b, $c, $transferred, $total) use ($value) { |
516
|
|
|
if ($code == \STREAM_NOTIFY_PROGRESS) { |
517
|
|
|
$value($total, $transferred, null, null); |
518
|
|
|
} |
519
|
|
|
} |
520
|
|
|
); |
521
|
|
|
} |
522
|
|
|
|
523
|
|
|
/** |
524
|
|
|
* @param mixed $value as passed via Request transfer options. |
525
|
|
|
*/ |
526
|
|
|
private function add_debug(RequestInterface $request, array &$options, $value, array &$params): void |
|
|
|
|
527
|
|
|
{ |
528
|
|
|
if ($value === false) { |
529
|
|
|
return; |
530
|
|
|
} |
531
|
|
|
|
532
|
|
|
static $map = [ |
533
|
|
|
\STREAM_NOTIFY_CONNECT => 'CONNECT', |
534
|
|
|
\STREAM_NOTIFY_AUTH_REQUIRED => 'AUTH_REQUIRED', |
535
|
|
|
\STREAM_NOTIFY_AUTH_RESULT => 'AUTH_RESULT', |
536
|
|
|
\STREAM_NOTIFY_MIME_TYPE_IS => 'MIME_TYPE_IS', |
537
|
|
|
\STREAM_NOTIFY_FILE_SIZE_IS => 'FILE_SIZE_IS', |
538
|
|
|
\STREAM_NOTIFY_REDIRECTED => 'REDIRECTED', |
539
|
|
|
\STREAM_NOTIFY_PROGRESS => 'PROGRESS', |
540
|
|
|
\STREAM_NOTIFY_FAILURE => 'FAILURE', |
541
|
|
|
\STREAM_NOTIFY_COMPLETED => 'COMPLETED', |
542
|
|
|
\STREAM_NOTIFY_RESOLVE => 'RESOLVE', |
543
|
|
|
]; |
544
|
|
|
static $args = ['severity', 'message', 'message_code', 'bytes_transferred', 'bytes_max']; |
545
|
|
|
|
546
|
|
|
$value = Utils::debugResource($value); |
547
|
|
|
$ident = $request->getMethod() . ' ' . $request->getUri()->withFragment(''); |
548
|
|
|
self::addNotification( |
549
|
|
|
$params, |
550
|
|
|
static function (int $code, ...$passed) use ($ident, $value, $map, $args): void { |
551
|
|
|
\fprintf($value, '<%s> [%s] ', $ident, $map[$code]); |
552
|
|
|
foreach (\array_filter($passed) as $i => $v) { |
553
|
|
|
\fwrite($value, $args[$i] . ': "' . $v . '" '); |
554
|
|
|
} |
555
|
|
|
\fwrite($value, "\n"); |
556
|
|
|
} |
557
|
|
|
); |
558
|
|
|
} |
559
|
|
|
|
560
|
|
|
private static function addNotification(array &$params, callable $notify): void |
561
|
|
|
{ |
562
|
|
|
// Wrap the existing function if needed. |
563
|
|
|
if (!isset($params['notification'])) { |
564
|
|
|
$params['notification'] = $notify; |
565
|
|
|
} else { |
566
|
|
|
$params['notification'] = self::callArray([ |
567
|
|
|
$params['notification'], |
568
|
|
|
$notify |
569
|
|
|
]); |
570
|
|
|
} |
571
|
|
|
} |
572
|
|
|
|
573
|
|
|
private static function callArray(array $functions): callable |
574
|
|
|
{ |
575
|
|
|
return static function (...$args) use ($functions) { |
576
|
|
|
foreach ($functions as $fn) { |
577
|
|
|
$fn(...$args); |
578
|
|
|
} |
579
|
|
|
}; |
580
|
|
|
} |
581
|
|
|
} |
582
|
|
|
|
This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.