| 1 |
<?php |
| 2 |
|
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namespace Dudlewebs\WPMCS\s3\GuzzleHttp\Handler; |
| 4 |
|
| 5 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\Exception\ConnectException; |
| 6 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\Exception\RequestException; |
| 7 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\Promise as P; |
| 8 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\Promise\FulfilledPromise; |
| 9 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\Promise\PromiseInterface; |
| 10 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\Psr7; |
| 11 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\TransferStats; |
| 12 |
use Dudlewebs\WPMCS\s3\GuzzleHttp\Utils; |
| 13 |
use Dudlewebs\WPMCS\s3\Psr\Http\Message\RequestInterface; |
| 14 |
use Dudlewebs\WPMCS\s3\Psr\Http\Message\ResponseInterface; |
| 15 |
use Dudlewebs\WPMCS\s3\Psr\Http\Message\StreamInterface; |
| 16 |
use Dudlewebs\WPMCS\s3\Psr\Http\Message\UriInterface; |
| 17 |
/** |
| 18 |
* HTTP handler that uses PHP's HTTP stream wrapper. |
| 19 |
* |
| 20 |
* @final |
| 21 |
*/ |
| 22 |
class StreamHandler |
| 23 |
{ |
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/** |
| 25 |
* @var array |
| 26 |
*/ |
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private $lastHeaders = []; |
| 28 |
/** |
| 29 |
* Sends an HTTP request. |
| 30 |
* |
| 31 |
* @param RequestInterface $request Request to send. |
| 32 |
* @param array $options Request transfer options. |
| 33 |
*/ |
| 34 |
public function __invoke(RequestInterface $request, array $options) : PromiseInterface |
| 35 |
{ |
| 36 |
// Sleep if there is a delay specified. |
| 37 |
if (isset($options['delay'])) { |
| 38 |
\usleep($options['delay'] * 1000); |
| 39 |
} |
| 40 |
$protocolVersion = $request->getProtocolVersion(); |
| 41 |
if ('1.0' !== $protocolVersion && '1.1' !== $protocolVersion) { |
| 42 |
throw new ConnectException(\sprintf('HTTP/%s is not supported by the stream handler.', $protocolVersion), $request); |
| 43 |
} |
| 44 |
$startTime = isset($options['on_stats']) ? Utils::currentTime() : null; |
| 45 |
try { |
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// Does not support the expect header. |
| 47 |
$request = $request->withoutHeader('Expect'); |
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// Append a content-length header if body size is zero to match |
| 49 |
// cURL's behavior. |
| 50 |
if (0 === $request->getBody()->getSize()) { |
| 51 |
$request = $request->withHeader('Content-Length', '0'); |
| 52 |
} |
| 53 |
return $this->createResponse($request, $options, $this->createStream($request, $options), $startTime); |
| 54 |
} catch (\InvalidArgumentException $e) { |
| 55 |
throw $e; |
| 56 |
} catch (\Exception $e) { |
| 57 |
// Determine if the error was a networking error. |
| 58 |
$message = $e->getMessage(); |
| 59 |
// This list can probably get more comprehensive. |
| 60 |
if (\false !== \strpos($message, 'getaddrinfo') || \false !== \strpos($message, 'Connection refused') || \false !== \strpos($message, "couldn't connect to host") || \false !== \strpos($message, 'connection attempt failed')) { |
| 61 |
$e = new ConnectException($e->getMessage(), $request, $e); |
| 62 |
} else { |
| 63 |
$e = RequestException::wrapException($request, $e); |
| 64 |
} |
| 65 |
$this->invokeStats($options, $request, $startTime, null, $e); |
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return P\Create::rejectionFor($e); |
| 67 |
} |
| 68 |
} |
| 69 |
private function invokeStats(array $options, RequestInterface $request, ?float $startTime, ?ResponseInterface $response = null, ?\Throwable $error = null) : void |
| 70 |
{ |
| 71 |
if (isset($options['on_stats'])) { |
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$stats = new TransferStats($request, $response, Utils::currentTime() - $startTime, $error, []); |
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$options['on_stats']($stats); |
| 74 |
} |
| 75 |
} |
| 76 |
/** |
| 77 |
* @param resource $stream |
| 78 |
*/ |
| 79 |
private function createResponse(RequestInterface $request, array $options, $stream, ?float $startTime) : PromiseInterface |
| 80 |
{ |
| 81 |
$hdrs = $this->lastHeaders; |
| 82 |
$this->lastHeaders = []; |
| 83 |
try { |
| 84 |
[$ver, $status, $reason, $headers] = HeaderProcessor::parseHeaders($hdrs); |
| 85 |
} catch (\Exception $e) { |
| 86 |
return P\Create::rejectionFor(new RequestException('An error was encountered while creating the response', $request, null, $e)); |
| 87 |
} |
| 88 |
[$stream, $headers] = $this->checkDecode($options, $headers, $stream); |
| 89 |
$stream = Psr7\Utils::streamFor($stream); |
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$sink = $stream; |
| 91 |
if (\strcasecmp('HEAD', $request->getMethod())) { |
| 92 |
$sink = $this->createSink($stream, $options); |
| 93 |
} |
| 94 |
try { |
| 95 |
$response = new Psr7\Response($status, $headers, $sink, $ver, $reason); |
| 96 |
} catch (\Exception $e) { |
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return P\Create::rejectionFor(new RequestException('An error was encountered while creating the response', $request, null, $e)); |
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} |
| 99 |
if (isset($options['on_headers'])) { |
| 100 |
try { |
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$options['on_headers']($response); |
| 102 |
} catch (\Exception $e) { |
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return P\Create::rejectionFor(new RequestException('An error was encountered during the on_headers event', $request, $response, $e)); |
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} |
| 105 |
} |
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// Do not drain when the request is a HEAD request because they have |
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// no body. |
| 108 |
if ($sink !== $stream) { |
| 109 |
$this->drain($stream, $sink, $response->getHeaderLine('Content-Length')); |
| 110 |
} |
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$this->invokeStats($options, $request, $startTime, $response, null); |
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return new FulfilledPromise($response); |
| 113 |
} |
| 114 |
private function createSink(StreamInterface $stream, array $options) : StreamInterface |
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{ |
| 116 |
if (!empty($options['stream'])) { |
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return $stream; |
| 118 |
} |
| 119 |
$sink = $options['sink'] ?? Psr7\Utils::tryFopen('php://temp', 'r+'); |
| 120 |
return \is_string($sink) ? new Psr7\LazyOpenStream($sink, 'w+') : Psr7\Utils::streamFor($sink); |
| 121 |
} |
| 122 |
/** |
| 123 |
* @param resource $stream |
| 124 |
*/ |
| 125 |
private function checkDecode(array $options, array $headers, $stream) : array |
| 126 |
{ |
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// Automatically decode responses when instructed. |
| 128 |
if (!empty($options['decode_content'])) { |
| 129 |
$normalizedKeys = Utils::normalizeHeaderKeys($headers); |
| 130 |
if (isset($normalizedKeys['content-encoding'])) { |
| 131 |
$encoding = $headers[$normalizedKeys['content-encoding']]; |
| 132 |
if ($encoding[0] === 'gzip' || $encoding[0] === 'deflate') { |
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$stream = new Psr7\InflateStream(Psr7\Utils::streamFor($stream)); |
| 134 |
$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 |
| 138 |
if (isset($normalizedKeys['content-length'])) { |
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$headers['x-encoded-content-length'] = $headers[$normalizedKeys['content-length']]; |
| 140 |
$length = (int) $stream->getSize(); |
| 141 |
if ($length === 0) { |
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unset($headers[$normalizedKeys['content-length']]); |
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} else { |
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$headers[$normalizedKeys['content-length']] = [$length]; |
| 145 |
} |
| 146 |
} |
| 147 |
} |
| 148 |
} |
| 149 |
} |
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return [$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 |
| 156 |
* data to read. |
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* |
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* @throws \RuntimeException when the sink option is invalid. |
| 159 |
*/ |
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private function drain(StreamInterface $source, StreamInterface $sink, string $contentLength) : StreamInterface |
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{ |
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// If a content-length header is provided, then stop reading once |
| 163 |
// that number of bytes has been read. This can prevent infinitely |
| 164 |
// reading from a stream when dealing with servers that do not honor |
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// Connection: Close headers. |
| 166 |
Psr7\Utils::copyToStream($source, $sink, \strlen($contentLength) > 0 && (int) $contentLength > 0 ? (int) $contentLength : -1); |
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$sink->seek(0); |
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$source->close(); |
| 169 |
return $sink; |
| 170 |
} |
| 171 |
/** |
| 172 |
* Create a resource and check to ensure it was created successfully |
| 173 |
* |
| 174 |
* @param callable $callback Callable that returns stream resource |
| 175 |
* |
| 176 |
* @return resource |
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* |
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* @throws \RuntimeException on error |
| 179 |
*/ |
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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 { |
| 184 |
$errors[] = ['message' => $msg, 'file' => $file, 'line' => $line]; |
| 185 |
return \true; |
| 186 |
}); |
| 187 |
try { |
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$resource = $callback(); |
| 189 |
} finally { |
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\restore_error_handler(); |
| 191 |
} |
| 192 |
if (!$resource) { |
| 193 |
$message = 'Error creating resource: '; |
| 194 |
foreach ($errors as $err) { |
| 195 |
foreach ($err as $key => $value) { |
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$message .= "[{$key}] {$value}" . \PHP_EOL; |
| 197 |
} |
| 198 |
} |
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throw new \RuntimeException(\trim($message)); |
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} |
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return $resource; |
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} |
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/** |
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* @return resource |
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*/ |
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private function createStream(RequestInterface $request, array $options) |
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{ |
| 208 |
static $methods; |
| 209 |
if (!$methods) { |
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$methods = \array_flip(\get_class_methods(__CLASS__)); |
| 211 |
} |
| 212 |
if (!\in_array($request->getUri()->getScheme(), ['http', 'https'])) { |
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throw new RequestException(\sprintf("The scheme '%s' is not supported.", $request->getUri()->getScheme()), $request); |
| 214 |
} |
| 215 |
// HTTP/1.1 streams using the PHP stream wrapper require a |
| 216 |
// Connection: close header |
| 217 |
if ($request->getProtocolVersion() === '1.1' && !$request->hasHeader('Connection')) { |
| 218 |
$request = $request->withHeader('Connection', 'close'); |
| 219 |
} |
| 220 |
// Ensure SSL is verified by default |
| 221 |
if (!isset($options['verify'])) { |
| 222 |
$options['verify'] = \true; |
| 223 |
} |
| 224 |
$params = []; |
| 225 |
$context = $this->getDefaultContext($request); |
| 226 |
if (isset($options['on_headers']) && !\is_callable($options['on_headers'])) { |
| 227 |
throw new \InvalidArgumentException('on_headers must be callable'); |
| 228 |
} |
| 229 |
if (!empty($options)) { |
| 230 |
foreach ($options as $key => $value) { |
| 231 |
$method = "add_{$key}"; |
| 232 |
if (isset($methods[$method])) { |
| 233 |
$this->{$method}($request, $context, $value, $params); |
| 234 |
} |
| 235 |
} |
| 236 |
} |
| 237 |
if (isset($options['stream_context'])) { |
| 238 |
if (!\is_array($options['stream_context'])) { |
| 239 |
throw new \InvalidArgumentException('stream_context must be an array'); |
| 240 |
} |
| 241 |
$context = \array_replace_recursive($context, $options['stream_context']); |
| 242 |
} |
| 243 |
// Microsoft NTLM authentication only supported with curl handler |
| 244 |
if (isset($options['auth'][2]) && 'ntlm' === $options['auth'][2]) { |
| 245 |
throw new \InvalidArgumentException('Microsoft NTLM authentication only supported with curl handler'); |
| 246 |
} |
| 247 |
$uri = $this->resolveHost($request, $options); |
| 248 |
$contextResource = $this->createResource(static function () use($context, $params) { |
| 249 |
return \stream_context_create($context, $params); |
| 250 |
}); |
| 251 |
return $this->createResource(function () use($uri, &$http_response_header, $contextResource, $context, $options, $request) { |
| 252 |
$resource = @\fopen((string) $uri, 'r', \false, $contextResource); |
| 253 |
$this->lastHeaders = $http_response_header ?? []; |
| 254 |
if (\false === $resource) { |
| 255 |
throw new ConnectException(\sprintf('Connection refused for URI %s', $uri), $request, null, $context); |
| 256 |
} |
| 257 |
if (isset($options['read_timeout'])) { |
| 258 |
$readTimeout = $options['read_timeout']; |
| 259 |
$sec = (int) $readTimeout; |
| 260 |
$usec = ($readTimeout - $sec) * 100000; |
| 261 |
\stream_set_timeout($resource, $sec, $usec); |
| 262 |
} |
| 263 |
return $resource; |
| 264 |
}); |
| 265 |
} |
| 266 |
private function resolveHost(RequestInterface $request, array $options) : UriInterface |
| 267 |
{ |
| 268 |
$uri = $request->getUri(); |
| 269 |
if (isset($options['force_ip_resolve']) && !\filter_var($uri->getHost(), \FILTER_VALIDATE_IP)) { |
| 270 |
if ('v4' === $options['force_ip_resolve']) { |
| 271 |
$records = \dns_get_record($uri->getHost(), \DNS_A); |
| 272 |
if (\false === $records || !isset($records[0]['ip'])) { |
| 273 |
throw new ConnectException(\sprintf("Could not resolve IPv4 address for host '%s'", $uri->getHost()), $request); |
| 274 |
} |
| 275 |
return $uri->withHost($records[0]['ip']); |
| 276 |
} |
| 277 |
if ('v6' === $options['force_ip_resolve']) { |
| 278 |
$records = \dns_get_record($uri->getHost(), \DNS_AAAA); |
| 279 |
if (\false === $records || !isset($records[0]['ipv6'])) { |
| 280 |
throw new ConnectException(\sprintf("Could not resolve IPv6 address for host '%s'", $uri->getHost()), $request); |
| 281 |
} |
| 282 |
return $uri->withHost('[' . $records[0]['ipv6'] . ']'); |
| 283 |
} |
| 284 |
} |
| 285 |
return $uri; |
| 286 |
} |
| 287 |
private function getDefaultContext(RequestInterface $request) : array |
| 288 |
{ |
| 289 |
$headers = ''; |
| 290 |
foreach ($request->getHeaders() as $name => $value) { |
| 291 |
foreach ($value as $val) { |
| 292 |
$headers .= "{$name}: {$val}\r\n"; |
| 293 |
} |
| 294 |
} |
| 295 |
$context = ['http' => ['method' => $request->getMethod(), 'header' => $headers, 'protocol_version' => $request->getProtocolVersion(), 'ignore_errors' => \true, 'follow_location' => 0], 'ssl' => ['peer_name' => $request->getUri()->getHost()]]; |
| 296 |
$body = (string) $request->getBody(); |
| 297 |
if ('' !== $body) { |
| 298 |
$context['http']['content'] = $body; |
| 299 |
// Prevent the HTTP handler from adding a Content-Type header. |
| 300 |
if (!$request->hasHeader('Content-Type')) { |
| 301 |
$context['http']['header'] .= "Content-Type:\r\n"; |
| 302 |
} |
| 303 |
} |
| 304 |
$context['http']['header'] = \rtrim($context['http']['header']); |
| 305 |
return $context; |
| 306 |
} |
| 307 |
/** |
| 308 |
* @param mixed $value as passed via Request transfer options. |
| 309 |
*/ |
| 310 |
private function add_proxy(RequestInterface $request, array &$options, $value, array &$params) : void |
| 311 |
{ |
| 312 |
$uri = null; |
| 313 |
if (!\is_array($value)) { |
| 314 |
$uri = $value; |
| 315 |
} else { |
| 316 |
$scheme = $request->getUri()->getScheme(); |
| 317 |
if (isset($value[$scheme])) { |
| 318 |
if (!isset($value['no']) || !Utils::isHostInNoProxy($request->getUri()->getHost(), $value['no'])) { |
| 319 |
$uri = $value[$scheme]; |
| 320 |
} |
| 321 |
} |
| 322 |
} |
| 323 |
if (!$uri) { |
| 324 |
return; |
| 325 |
} |
| 326 |
$parsed = $this->parse_proxy($uri); |
| 327 |
$options['http']['proxy'] = $parsed['proxy']; |
| 328 |
if ($parsed['auth']) { |
| 329 |
if (!isset($options['http']['header'])) { |
| 330 |
$options['http']['header'] = []; |
| 331 |
} |
| 332 |
$options['http']['header'] .= "\r\nProxy-Authorization: {$parsed['auth']}"; |
| 333 |
} |
| 334 |
} |
| 335 |
/** |
| 336 |
* Parses the given proxy URL to make it compatible with the format PHP's stream context expects. |
| 337 |
*/ |
| 338 |
private function parse_proxy(string $url) : array |
| 339 |
{ |
| 340 |
$parsed = \parse_url($url); |
| 341 |
if ($parsed !== \false && isset($parsed['scheme']) && $parsed['scheme'] === 'http') { |
| 342 |
if (isset($parsed['host']) && isset($parsed['port'])) { |
| 343 |
$auth = null; |
| 344 |
if (isset($parsed['user']) && isset($parsed['pass'])) { |
| 345 |
$auth = \base64_encode("{$parsed['user']}:{$parsed['pass']}"); |
| 346 |
} |
| 347 |
return ['proxy' => "tcp://{$parsed['host']}:{$parsed['port']}", 'auth' => $auth ? "Basic {$auth}" : null]; |
| 348 |
} |
| 349 |
} |
| 350 |
// Return proxy as-is. |
| 351 |
return ['proxy' => $url, 'auth' => null]; |
| 352 |
} |
| 353 |
/** |
| 354 |
* @param mixed $value as passed via Request transfer options. |
| 355 |
*/ |
| 356 |
private function add_timeout(RequestInterface $request, array &$options, $value, array &$params) : void |
| 357 |
{ |
| 358 |
if ($value > 0) { |
| 359 |
$options['http']['timeout'] = $value; |
| 360 |
} |
| 361 |
} |
| 362 |
/** |
| 363 |
* @param mixed $value as passed via Request transfer options. |
| 364 |
*/ |
| 365 |
private function add_crypto_method(RequestInterface $request, array &$options, $value, array &$params) : void |
| 366 |
{ |
| 367 |
if ($value === \STREAM_CRYPTO_METHOD_TLSv1_0_CLIENT || $value === \STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT || $value === \STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT || \defined('STREAM_CRYPTO_METHOD_TLSv1_3_CLIENT') && $value === \STREAM_CRYPTO_METHOD_TLSv1_3_CLIENT) { |
| 368 |
$options['http']['crypto_method'] = $value; |
| 369 |
return; |
| 370 |
} |
| 371 |
throw new \InvalidArgumentException('Invalid crypto_method request option: unknown version provided'); |
| 372 |
} |
| 373 |
/** |
| 374 |
* @param mixed $value as passed via Request transfer options. |
| 375 |
*/ |
| 376 |
private function add_verify(RequestInterface $request, array &$options, $value, array &$params) : void |
| 377 |
{ |
| 378 |
if ($value === \false) { |
| 379 |
$options['ssl']['verify_peer'] = \false; |
| 380 |
$options['ssl']['verify_peer_name'] = \false; |
| 381 |
return; |
| 382 |
} |
| 383 |
if (\is_string($value)) { |
| 384 |
$options['ssl']['cafile'] = $value; |
| 385 |
if (!\file_exists($value)) { |
| 386 |
throw new \RuntimeException("SSL CA bundle not found: {$value}"); |
| 387 |
} |
| 388 |
} elseif ($value !== \true) { |
| 389 |
throw new \InvalidArgumentException('Invalid verify request option'); |
| 390 |
} |
| 391 |
$options['ssl']['verify_peer'] = \true; |
| 392 |
$options['ssl']['verify_peer_name'] = \true; |
| 393 |
$options['ssl']['allow_self_signed'] = \false; |
| 394 |
} |
| 395 |
/** |
| 396 |
* @param mixed $value as passed via Request transfer options. |
| 397 |
*/ |
| 398 |
private function add_cert(RequestInterface $request, array &$options, $value, array &$params) : void |
| 399 |
{ |
| 400 |
if (\is_array($value)) { |
| 401 |
$options['ssl']['passphrase'] = $value[1]; |
| 402 |
$value = $value[0]; |
| 403 |
} |
| 404 |
if (!\file_exists($value)) { |
| 405 |
throw new \RuntimeException("SSL certificate not found: {$value}"); |
| 406 |
} |
| 407 |
$options['ssl']['local_cert'] = $value; |
| 408 |
} |
| 409 |
/** |
| 410 |
* @param mixed $value as passed via Request transfer options. |
| 411 |
*/ |
| 412 |
private function add_progress(RequestInterface $request, array &$options, $value, array &$params) : void |
| 413 |
{ |
| 414 |
self::addNotification($params, static function ($code, $a, $b, $c, $transferred, $total) use($value) { |
| 415 |
if ($code == \STREAM_NOTIFY_PROGRESS) { |
| 416 |
// The upload progress cannot be determined. Use 0 for cURL compatibility: |
| 417 |
// https://curl.se/libcurl/c/CURLOPT_PROGRESSFUNCTION.html |
| 418 |
$value($total, $transferred, 0, 0); |
| 419 |
} |
| 420 |
}); |
| 421 |
} |
| 422 |
/** |
| 423 |
* @param mixed $value as passed via Request transfer options. |
| 424 |
*/ |
| 425 |
private function add_debug(RequestInterface $request, array &$options, $value, array &$params) : void |
| 426 |
{ |
| 427 |
if ($value === \false) { |
| 428 |
return; |
| 429 |
} |
| 430 |
static $map = [\STREAM_NOTIFY_CONNECT => 'CONNECT', \STREAM_NOTIFY_AUTH_REQUIRED => 'AUTH_REQUIRED', \STREAM_NOTIFY_AUTH_RESULT => 'AUTH_RESULT', \STREAM_NOTIFY_MIME_TYPE_IS => 'MIME_TYPE_IS', \STREAM_NOTIFY_FILE_SIZE_IS => 'FILE_SIZE_IS', \STREAM_NOTIFY_REDIRECTED => 'REDIRECTED', \STREAM_NOTIFY_PROGRESS => 'PROGRESS', \STREAM_NOTIFY_FAILURE => 'FAILURE', \STREAM_NOTIFY_COMPLETED => 'COMPLETED', \STREAM_NOTIFY_RESOLVE => 'RESOLVE']; |
| 431 |
static $args = ['severity', 'message', 'message_code', 'bytes_transferred', 'bytes_max']; |
| 432 |
$value = Utils::debugResource($value); |
| 433 |
$ident = $request->getMethod() . ' ' . $request->getUri()->withFragment(''); |
| 434 |
self::addNotification($params, static function (int $code, ...$passed) use($ident, $value, $map, $args) : void { |
| 435 |
\fprintf($value, '<%s> [%s] ', $ident, $map[$code]); |
| 436 |
foreach (\array_filter($passed) as $i => $v) { |
| 437 |
\fwrite($value, $args[$i] . ': "' . $v . '" '); |
| 438 |
} |
| 439 |
\fwrite($value, "\n"); |
| 440 |
}); |
| 441 |
} |
| 442 |
private static function addNotification(array &$params, callable $notify) : void |
| 443 |
{ |
| 444 |
// Wrap the existing function if needed. |
| 445 |
if (!isset($params['notification'])) { |
| 446 |
$params['notification'] = $notify; |
| 447 |
} else { |
| 448 |
$params['notification'] = self::callArray([$params['notification'], $notify]); |
| 449 |
} |
| 450 |
} |
| 451 |
private static function callArray(array $functions) : callable |
| 452 |
{ |
| 453 |
return static function (...$args) use($functions) { |
| 454 |
foreach ($functions as $fn) { |
| 455 |
$fn(...$args); |
| 456 |
} |
| 457 |
}; |
| 458 |
} |
| 459 |
} |
| 460 |
|
