vendor/symfony/http-foundation/Request.php line 43

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  1. <?php
  3. /*
  4. * This file is part of the Symfony package.
  5. *
  6. * (c) Fabien Potencier <[email protected]>
  7. *
  8. * For the full copyright and license information, please view the LICENSE
  9. * file that was distributed with this source code.
  10. */
  12. namespace Symfony\Component\HttpFoundation;
  14. use Symfony\Component\HttpFoundation\Exception\BadRequestException;
  15. use Symfony\Component\HttpFoundation\Exception\ConflictingHeadersException;
  16. use Symfony\Component\HttpFoundation\Exception\JsonException;
  17. use Symfony\Component\HttpFoundation\Exception\SessionNotFoundException;
  18. use Symfony\Component\HttpFoundation\Exception\SuspiciousOperationException;
  19. use Symfony\Component\HttpFoundation\Session\SessionInterface;
  21. // Help opcache.preload discover always-needed symbols
  22. class_exists(AcceptHeader::class);
  23. class_exists(FileBag::class);
  24. class_exists(HeaderBag::class);
  25. class_exists(HeaderUtils::class);
  26. class_exists(InputBag::class);
  27. class_exists(ParameterBag::class);
  28. class_exists(ServerBag::class);
  30. /**
  31. * Request represents an HTTP request.
  32. *
  33. * The methods dealing with URL accept / return a raw path (% encoded):
  34. * * getBasePath
  35. * * getBaseUrl
  36. * * getPathInfo
  37. * * getRequestUri
  38. * * getUri
  39. * * getUriForPath
  40. *
  41. * @author Fabien Potencier <[email protected]>
  42. */
  43. class Request
  44. {
  45. public const HEADER_FORWARDED = 0b000001; // When using RFC 7239
  46. public const HEADER_X_FORWARDED_FOR = 0b000010;
  47. public const HEADER_X_FORWARDED_HOST = 0b000100;
  48. public const HEADER_X_FORWARDED_PROTO = 0b001000;
  49. public const HEADER_X_FORWARDED_PORT = 0b010000;
  50. public const HEADER_X_FORWARDED_PREFIX = 0b100000;
  52. /** @deprecated since Symfony 5.2, use either "HEADER_X_FORWARDED_FOR | HEADER_X_FORWARDED_HOST | HEADER_X_FORWARDED_PORT | HEADER_X_FORWARDED_PROTO" or "HEADER_X_FORWARDED_AWS_ELB" or "HEADER_X_FORWARDED_TRAEFIK" constants instead. */
  53. public const HEADER_X_FORWARDED_ALL = 0b1011110; // All "X-Forwarded-*" headers sent by "usual" reverse proxy
  54. public const HEADER_X_FORWARDED_AWS_ELB = 0b0011010; // AWS ELB doesn't send X-Forwarded-Host
  55. public const HEADER_X_FORWARDED_TRAEFIK = 0b0111110; // All "X-Forwarded-*" headers sent by Traefik reverse proxy
  57. public const METHOD_HEAD = 'HEAD';
  58. public const METHOD_GET = 'GET';
  59. public const METHOD_POST = 'POST';
  60. public const METHOD_PUT = 'PUT';
  61. public const METHOD_PATCH = 'PATCH';
  62. public const METHOD_DELETE = 'DELETE';
  63. public const METHOD_PURGE = 'PURGE';
  64. public const METHOD_OPTIONS = 'OPTIONS';
  65. public const METHOD_TRACE = 'TRACE';
  66. public const METHOD_CONNECT = 'CONNECT';
  68. /**
  69. * @var string[]
  70. */
  71. protected static $trustedProxies = [];
  73. /**
  74. * @var string[]
  75. */
  76. protected static $trustedHostPatterns = [];
  78. /**
  79. * @var string[]
  80. */
  81. protected static $trustedHosts = [];
  83. protected static $httpMethodParameterOverride = false;
  85. /**
  86. * Custom parameters.
  87. *
  88. * @var ParameterBag
  89. */
  90. public $attributes;
  92. /**
  93. * Request body parameters ($_POST).
  94. *
  95. * @var InputBag
  96. */
  97. public $request;
  99. /**
  100. * Query string parameters ($_GET).
  101. *
  102. * @var InputBag
  103. */
  104. public $query;
  106. /**
  107. * Server and execution environment parameters ($_SERVER).
  108. *
  109. * @var ServerBag
  110. */
  111. public $server;
  113. /**
  114. * Uploaded files ($_FILES).
  115. *
  116. * @var FileBag
  117. */
  118. public $files;
  120. /**
  121. * Cookies ($_COOKIE).
  122. *
  123. * @var InputBag
  124. */
  125. public $cookies;
  127. /**
  128. * Headers (taken from the $_SERVER).
  129. *
  130. * @var HeaderBag
  131. */
  132. public $headers;
  134. /**
  135. * @var string|resource|false|null
  136. */
  137. protected $content;
  139. /**
  140. * @var array
  141. */
  142. protected $languages;
  144. /**
  145. * @var array
  146. */
  147. protected $charsets;
  149. /**
  150. * @var array
  151. */
  152. protected $encodings;
  154. /**
  155. * @var array
  156. */
  157. protected $acceptableContentTypes;
  159. /**
  160. * @var string
  161. */
  162. protected $pathInfo;
  164. /**
  165. * @var string
  166. */
  167. protected $requestUri;
  169. /**
  170. * @var string
  171. */
  172. protected $baseUrl;
  174. /**
  175. * @var string
  176. */
  177. protected $basePath;
  179. /**
  180. * @var string
  181. */
  182. protected $method;
  184. /**
  185. * @var string
  186. */
  187. protected $format;
  189. /**
  190. * @var SessionInterface|callable(): SessionInterface
  191. */
  192. protected $session;
  194. /**
  195. * @var string|null
  196. */
  197. protected $locale;
  199. /**
  200. * @var string
  201. */
  202. protected $defaultLocale = 'en';
  204. /**
  205. * @var array
  206. */
  207. protected static $formats;
  209. protected static $requestFactory;
  211. /**
  212. * @var string|null
  213. */
  214. private $preferredFormat;
  215. private $isHostValid = true;
  216. private $isForwardedValid = true;
  218. /**
  219. * @var bool|null
  220. */
  221. private $isSafeContentPreferred;
  223. private static $trustedHeaderSet = -1;
  225. private const FORWARDED_PARAMS = [
  226. self::HEADER_X_FORWARDED_FOR => 'for',
  227. self::HEADER_X_FORWARDED_HOST => 'host',
  228. self::HEADER_X_FORWARDED_PROTO => 'proto',
  229. self::HEADER_X_FORWARDED_PORT => 'host',
  230. ];
  232. /**
  233. * Names for headers that can be trusted when
  234. * using trusted proxies.
  235. *
  236. * The FORWARDED header is the standard as of rfc7239.
  237. *
  238. * The other headers are non-standard, but widely used
  239. * by popular reverse proxies (like Apache mod_proxy or Amazon EC2).
  240. */
  241. private const TRUSTED_HEADERS = [
  242. self::HEADER_FORWARDED => 'FORWARDED',
  243. self::HEADER_X_FORWARDED_FOR => 'X_FORWARDED_FOR',
  244. self::HEADER_X_FORWARDED_HOST => 'X_FORWARDED_HOST',
  245. self::HEADER_X_FORWARDED_PROTO => 'X_FORWARDED_PROTO',
  246. self::HEADER_X_FORWARDED_PORT => 'X_FORWARDED_PORT',
  247. self::HEADER_X_FORWARDED_PREFIX => 'X_FORWARDED_PREFIX',
  248. ];
  250. /** @var bool */
  251. private $isIisRewrite = false;
  253. /**
  254. * @param array $query The GET parameters
  255. * @param array $request The POST parameters
  256. * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
  257. * @param array $cookies The COOKIE parameters
  258. * @param array $files The FILES parameters
  259. * @param array $server The SERVER parameters
  260. * @param string|resource|null $content The raw body data
  261. */
  262. public function __construct(array $query = [], array $request = [], array $attributes = [], array $cookies = [], array $files = [], array $server = [], $content = null)
  263. {
  264. $this->initialize($query, $request, $attributes, $cookies, $files, $server, $content);
  265. }
  267. /**
  268. * Sets the parameters for this request.
  269. *
  270. * This method also re-initializes all properties.
  271. *
  272. * @param array $query The GET parameters
  273. * @param array $request The POST parameters
  274. * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
  275. * @param array $cookies The COOKIE parameters
  276. * @param array $files The FILES parameters
  277. * @param array $server The SERVER parameters
  278. * @param string|resource|null $content The raw body data
  279. */
  280. public function initialize(array $query = [], array $request = [], array $attributes = [], array $cookies = [], array $files = [], array $server = [], $content = null)
  281. {
  282. $this->request = new InputBag($request);
  283. $this->query = new InputBag($query);
  284. $this->attributes = new ParameterBag($attributes);
  285. $this->cookies = new InputBag($cookies);
  286. $this->files = new FileBag($files);
  287. $this->server = new ServerBag($server);
  288. $this->headers = new HeaderBag($this->server->getHeaders());
  290. $this->content = $content;
  291. $this->languages = null;
  292. $this->charsets = null;
  293. $this->encodings = null;
  294. $this->acceptableContentTypes = null;
  295. $this->pathInfo = null;
  296. $this->requestUri = null;
  297. $this->baseUrl = null;
  298. $this->basePath = null;
  299. $this->method = null;
  300. $this->format = null;
  301. }
  303. /**
  304. * Creates a new request with values from PHP's super globals.
  305. *
  306. * @return static
  307. */
  308. public static function createFromGlobals()
  309. {
  310. $request = self::createRequestFromFactory($_GET, $_POST, [], $_COOKIE, $_FILES, $_SERVER);
  312. if (str_starts_with($request->headers->get('CONTENT_TYPE', ''), 'application/x-www-form-urlencoded')
  313. && \in_array(strtoupper($request->server->get('REQUEST_METHOD', 'GET')), ['PUT', 'DELETE', 'PATCH'])
  314. ) {
  315. parse_str($request->getContent(), $data);
  316. $request->request = new InputBag($data);
  317. }
  319. return $request;
  320. }
  322. /**
  323. * Creates a Request based on a given URI and configuration.
  324. *
  325. * The information contained in the URI always take precedence
  326. * over the other information (server and parameters).
  327. *
  328. * @param string $uri The URI
  329. * @param string $method The HTTP method
  330. * @param array $parameters The query (GET) or request (POST) parameters
  331. * @param array $cookies The request cookies ($_COOKIE)
  332. * @param array $files The request files ($_FILES)
  333. * @param array $server The server parameters ($_SERVER)
  334. * @param string|resource|null $content The raw body data
  335. *
  336. * @return static
  337. *
  338. * @throws BadRequestException When the URI is invalid
  339. */
  340. public static function create(string $uri, string $method = 'GET', array $parameters = [], array $cookies = [], array $files = [], array $server = [], $content = null)
  341. {
  342. $server = array_replace([
  343. 'SERVER_NAME' => 'localhost',
  344. 'SERVER_PORT' => 80,
  345. 'HTTP_HOST' => 'localhost',
  346. 'HTTP_USER_AGENT' => 'Symfony',
  347. 'HTTP_ACCEPT' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
  348. 'HTTP_ACCEPT_LANGUAGE' => 'en-us,en;q=0.5',
  349. 'HTTP_ACCEPT_CHARSET' => 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
  350. 'REMOTE_ADDR' => '127.0.0.1',
  351. 'SCRIPT_NAME' => '',
  352. 'SCRIPT_FILENAME' => '',
  353. 'SERVER_PROTOCOL' => 'HTTP/1.1',
  354. 'REQUEST_TIME' => time(),
  355. 'REQUEST_TIME_FLOAT' => microtime(true),
  356. ], $server);
  358. $server['PATH_INFO'] = '';
  359. $server['REQUEST_METHOD'] = strtoupper($method);
  361. if (false === ($components = parse_url($uri)) && '/' === ($uri[0] ?? '')) {
  362. $components = parse_url($uri.'#');
  363. unset($components['fragment']);
  364. }
  366. if (false === $components) {
  367. throw new BadRequestException('Invalid URI.');
  368. }
  370. if (false !== ($i = strpos($uri, '\\')) && $i < strcspn($uri, '?#')) {
  371. throw new BadRequestException('Invalid URI: A URI cannot contain a backslash.');
  372. }
  373. if (\strlen($uri) !== strcspn($uri, "\r\n\t")) {
  374. throw new BadRequestException('Invalid URI: A URI cannot contain CR/LF/TAB characters.');
  375. }
  376. if ('' !== $uri && (\ord($uri[0]) <= 32 || \ord($uri[-1]) <= 32)) {
  377. throw new BadRequestException('Invalid URI: A URI must not start nor end with ASCII control characters or spaces.');
  378. }
  380. if (isset($components['host'])) {
  381. $server['SERVER_NAME'] = $components['host'];
  382. $server['HTTP_HOST'] = $components['host'];
  383. }
  385. if (isset($components['scheme'])) {
  386. if ('https' === $components['scheme']) {
  387. $server['HTTPS'] = 'on';
  388. $server['SERVER_PORT'] = 443;
  389. } else {
  390. unset($server['HTTPS']);
  391. $server['SERVER_PORT'] = 80;
  392. }
  393. }
  395. if (isset($components['port'])) {
  396. $server['SERVER_PORT'] = $components['port'];
  397. $server['HTTP_HOST'] .= ':'.$components['port'];
  398. }
  400. if (isset($components['user'])) {
  401. $server['PHP_AUTH_USER'] = $components['user'];
  402. }
  404. if (isset($components['pass'])) {
  405. $server['PHP_AUTH_PW'] = $components['pass'];
  406. }
  408. if (!isset($components['path'])) {
  409. $components['path'] = '/';
  410. }
  412. switch (strtoupper($method)) {
  413. case 'POST':
  414. case 'PUT':
  415. case 'DELETE':
  416. if (!isset($server['CONTENT_TYPE'])) {
  417. $server['CONTENT_TYPE'] = 'application/x-www-form-urlencoded';
  418. }
  419. // no break
  420. case 'PATCH':
  421. $request = $parameters;
  422. $query = [];
  423. break;
  424. default:
  425. $request = [];
  426. $query = $parameters;
  427. break;
  428. }
  430. $queryString = '';
  431. if (isset($components['query'])) {
  432. parse_str(html_entity_decode($components['query']), $qs);
  434. if ($query) {
  435. $query = array_replace($qs, $query);
  436. $queryString = http_build_query($query, '', '&');
  437. } else {
  438. $query = $qs;
  439. $queryString = $components['query'];
  440. }
  441. } elseif ($query) {
  442. $queryString = http_build_query($query, '', '&');
  443. }
  445. $server['REQUEST_URI'] = $components['path'].('' !== $queryString ? '?'.$queryString : '');
  446. $server['QUERY_STRING'] = $queryString;
  448. return self::createRequestFromFactory($query, $request, [], $cookies, $files, $server, $content);
  449. }
  451. /**
  452. * Sets a callable able to create a Request instance.
  453. *
  454. * This is mainly useful when you need to override the Request class
  455. * to keep BC with an existing system. It should not be used for any
  456. * other purpose.
  457. */
  458. public static function setFactory(?callable $callable)
  459. {
  460. self::$requestFactory = $callable;
  461. }
  463. /**
  464. * Clones a request and overrides some of its parameters.
  465. *
  466. * @param array|null $query The GET parameters
  467. * @param array|null $request The POST parameters
  468. * @param array|null $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
  469. * @param array|null $cookies The COOKIE parameters
  470. * @param array|null $files The FILES parameters
  471. * @param array|null $server The SERVER parameters
  472. *
  473. * @return static
  474. */
  475. public function duplicate(?array $query = null, ?array $request = null, ?array $attributes = null, ?array $cookies = null, ?array $files = null, ?array $server = null)
  476. {
  477. $dup = clone $this;
  478. if (null !== $query) {
  479. $dup->query = new InputBag($query);
  480. }
  481. if (null !== $request) {
  482. $dup->request = new InputBag($request);
  483. }
  484. if (null !== $attributes) {
  485. $dup->attributes = new ParameterBag($attributes);
  486. }
  487. if (null !== $cookies) {
  488. $dup->cookies = new InputBag($cookies);
  489. }
  490. if (null !== $files) {
  491. $dup->files = new FileBag($files);
  492. }
  493. if (null !== $server) {
  494. $dup->server = new ServerBag($server);
  495. $dup->headers = new HeaderBag($dup->server->getHeaders());
  496. }
  497. $dup->languages = null;
  498. $dup->charsets = null;
  499. $dup->encodings = null;
  500. $dup->acceptableContentTypes = null;
  501. $dup->pathInfo = null;
  502. $dup->requestUri = null;
  503. $dup->baseUrl = null;
  504. $dup->basePath = null;
  505. $dup->method = null;
  506. $dup->format = null;
  508. if (!$dup->get('_format') && $this->get('_format')) {
  509. $dup->attributes->set('_format', $this->get('_format'));
  510. }
  512. if (!$dup->getRequestFormat(null)) {
  513. $dup->setRequestFormat($this->getRequestFormat(null));
  514. }
  516. return $dup;
  517. }
  519. /**
  520. * Clones the current request.
  521. *
  522. * Note that the session is not cloned as duplicated requests
  523. * are most of the time sub-requests of the main one.
  524. */
  525. public function __clone()
  526. {
  527. $this->query = clone $this->query;
  528. $this->request = clone $this->request;
  529. $this->attributes = clone $this->attributes;
  530. $this->cookies = clone $this->cookies;
  531. $this->files = clone $this->files;
  532. $this->server = clone $this->server;
  533. $this->headers = clone $this->headers;
  534. }
  536. /**
  537. * Returns the request as a string.
  538. *
  539. * @return string
  540. */
  541. public function __toString()
  542. {
  543. $content = $this->getContent();
  545. $cookieHeader = '';
  546. $cookies = [];
  548. foreach ($this->cookies as $k => $v) {
  549. $cookies[] = \is_array($v) ? http_build_query([$k => $v], '', '; ', \PHP_QUERY_RFC3986) : "$k=$v";
  550. }
  552. if ($cookies) {
  553. $cookieHeader = 'Cookie: '.implode('; ', $cookies)."\r\n";
  554. }
  556. return
  557. sprintf('%s %s %s', $this->getMethod(), $this->getRequestUri(), $this->server->get('SERVER_PROTOCOL'))."\r\n".
  558. $this->headers.
  559. $cookieHeader."\r\n".
  560. $content;
  561. }
  563. /**
  564. * Overrides the PHP global variables according to this request instance.
  565. *
  566. * It overrides $_GET, $_POST, $_REQUEST, $_SERVER, $_COOKIE.
  567. * $_FILES is never overridden, see rfc1867
  568. */
  569. public function overrideGlobals()
  570. {
  571. $this->server->set('QUERY_STRING', static::normalizeQueryString(http_build_query($this->query->all(), '', '&')));
  573. $_GET = $this->query->all();
  574. $_POST = $this->request->all();
  575. $_SERVER = $this->server->all();
  576. $_COOKIE = $this->cookies->all();
  578. foreach ($this->headers->all() as $key => $value) {
  579. $key = strtoupper(str_replace('-', '_', $key));
  580. if (\in_array($key, ['CONTENT_TYPE', 'CONTENT_LENGTH', 'CONTENT_MD5'], true)) {
  581. $_SERVER[$key] = implode(', ', $value);
  582. } else {
  583. $_SERVER['HTTP_'.$key] = implode(', ', $value);
  584. }
  585. }
  587. $request = ['g' => $_GET, 'p' => $_POST, 'c' => $_COOKIE];
  589. $requestOrder = \ini_get('request_order') ?: \ini_get('variables_order');
  590. $requestOrder = preg_replace('#[^cgp]#', '', strtolower($requestOrder)) ?: 'gp';
  592. $_REQUEST = [[]];
  594. foreach (str_split($requestOrder) as $order) {
  595. $_REQUEST[] = $request[$order];
  596. }
  598. $_REQUEST = array_merge(...$_REQUEST);
  599. }
  601. /**
  602. * Sets a list of trusted proxies.
  603. *
  604. * You should only list the reverse proxies that you manage directly.
  605. *
  606. * @param array $proxies A list of trusted proxies, the string 'REMOTE_ADDR' will be replaced with $_SERVER['REMOTE_ADDR']
  607. * @param int $trustedHeaderSet A bit field of Request::HEADER_*, to set which headers to trust from your proxies
  608. */
  609. public static function setTrustedProxies(array $proxies, int $trustedHeaderSet)
  610. {
  611. if (self::HEADER_X_FORWARDED_ALL === $trustedHeaderSet) {
  612. trigger_deprecation('symfony/http-foundation', '5.2', 'The "HEADER_X_FORWARDED_ALL" constant is deprecated, use either "HEADER_X_FORWARDED_FOR | HEADER_X_FORWARDED_HOST | HEADER_X_FORWARDED_PORT | HEADER_X_FORWARDED_PROTO" or "HEADER_X_FORWARDED_AWS_ELB" or "HEADER_X_FORWARDED_TRAEFIK" constants instead.');
  613. }
  614. self::$trustedProxies = array_reduce($proxies, function ($proxies, $proxy) {
  615. if ('REMOTE_ADDR' !== $proxy) {
  616. $proxies[] = $proxy;
  617. } elseif (isset($_SERVER['REMOTE_ADDR'])) {
  618. $proxies[] = $_SERVER['REMOTE_ADDR'];
  619. }
  621. return $proxies;
  622. }, []);
  623. self::$trustedHeaderSet = $trustedHeaderSet;
  624. }
  626. /**
  627. * Gets the list of trusted proxies.
  628. *
  629. * @return array
  630. */
  631. public static function getTrustedProxies()
  632. {
  633. return self::$trustedProxies;
  634. }
  636. /**
  637. * Gets the set of trusted headers from trusted proxies.
  638. *
  639. * @return int A bit field of Request::HEADER_* that defines which headers are trusted from your proxies
  640. */
  641. public static function getTrustedHeaderSet()
  642. {
  643. return self::$trustedHeaderSet;
  644. }
  646. /**
  647. * Sets a list of trusted host patterns.
  648. *
  649. * You should only list the hosts you manage using regexs.
  650. *
  651. * @param array $hostPatterns A list of trusted host patterns
  652. */
  653. public static function setTrustedHosts(array $hostPatterns)
  654. {
  655. self::$trustedHostPatterns = array_map(function ($hostPattern) {
  656. return sprintf('{%s}i', $hostPattern);
  657. }, $hostPatterns);
  658. // we need to reset trusted hosts on trusted host patterns change
  659. self::$trustedHosts = [];
  660. }
  662. /**
  663. * Gets the list of trusted host patterns.
  664. *
  665. * @return array
  666. */
  667. public static function getTrustedHosts()
  668. {
  669. return self::$trustedHostPatterns;
  670. }
  672. /**
  673. * Normalizes a query string.
  674. *
  675. * It builds a normalized query string, where keys/value pairs are alphabetized,
  676. * have consistent escaping and unneeded delimiters are removed.
  677. *
  678. * @return string
  679. */
  680. public static function normalizeQueryString(?string $qs)
  681. {
  682. if ('' === ($qs ?? '')) {
  683. return '';
  684. }
  686. $qs = HeaderUtils::parseQuery($qs);
  687. ksort($qs);
  689. return http_build_query($qs, '', '&', \PHP_QUERY_RFC3986);
  690. }
  692. /**
  693. * Enables support for the _method request parameter to determine the intended HTTP method.
  694. *
  695. * Be warned that enabling this feature might lead to CSRF issues in your code.
  696. * Check that you are using CSRF tokens when required.
  697. * If the HTTP method parameter override is enabled, an html-form with method "POST" can be altered
  698. * and used to send a "PUT" or "DELETE" request via the _method request parameter.
  699. * If these methods are not protected against CSRF, this presents a possible vulnerability.
  700. *
  701. * The HTTP method can only be overridden when the real HTTP method is POST.
  702. */
  703. public static function enableHttpMethodParameterOverride()
  704. {
  705. self::$httpMethodParameterOverride = true;
  706. }
  708. /**
  709. * Checks whether support for the _method request parameter is enabled.
  710. *
  711. * @return bool
  712. */
  713. public static function getHttpMethodParameterOverride()
  714. {
  715. return self::$httpMethodParameterOverride;
  716. }
  718. /**
  719. * Gets a "parameter" value from any bag.
  720. *
  721. * This method is mainly useful for libraries that want to provide some flexibility. If you don't need the
  722. * flexibility in controllers, it is better to explicitly get request parameters from the appropriate
  723. * public property instead (attributes, query, request).
  724. *
  725. * Order of precedence: PATH (routing placeholders or custom attributes), GET, POST
  726. *
  727. * @param mixed $default The default value if the parameter key does not exist
  728. *
  729. * @return mixed
  730. *
  731. * @internal since Symfony 5.4, use explicit input sources instead
  732. */
  733. public function get(string $key, $default = null)
  734. {
  735. if ($this !== $result = $this->attributes->get($key, $this)) {
  736. return $result;
  737. }
  739. if ($this->query->has($key)) {
  740. return $this->query->all()[$key];
  741. }
  743. if ($this->request->has($key)) {
  744. return $this->request->all()[$key];
  745. }
  747. return $default;
  748. }
  750. /**
  751. * Gets the Session.
  752. *
  753. * @return SessionInterface
  754. */
  755. public function getSession()
  756. {
  757. $session = $this->session;
  758. if (!$session instanceof SessionInterface && null !== $session) {
  759. $this->setSession($session = $session());
  760. }
  762. if (null === $session) {
  763. throw new SessionNotFoundException('Session has not been set.');
  764. }
  766. return $session;
  767. }
  769. /**
  770. * Whether the request contains a Session which was started in one of the
  771. * previous requests.
  772. *
  773. * @return bool
  774. */
  775. public function hasPreviousSession()
  776. {
  777. // the check for $this->session avoids malicious users trying to fake a session cookie with proper name
  778. return $this->hasSession() && $this->cookies->has($this->getSession()->getName());
  779. }
  781. /**
  782. * Whether the request contains a Session object.
  783. *
  784. * This method does not give any information about the state of the session object,
  785. * like whether the session is started or not. It is just a way to check if this Request
  786. * is associated with a Session instance.
  787. *
  788. * @param bool $skipIfUninitialized When true, ignores factories injected by `setSessionFactory`
  789. *
  790. * @return bool
  791. */
  792. public function hasSession(/* bool $skipIfUninitialized = false */)
  793. {
  794. $skipIfUninitialized = \func_num_args() > 0 ? func_get_arg(0) : false;
  796. return null !== $this->session && (!$skipIfUninitialized || $this->session instanceof SessionInterface);
  797. }
  799. public function setSession(SessionInterface $session)
  800. {
  801. $this->session = $session;
  802. }
  804. /**
  805. * @internal
  806. *
  807. * @param callable(): SessionInterface $factory
  808. */
  809. public function setSessionFactory(callable $factory)
  810. {
  811. $this->session = $factory;
  812. }
  814. /**
  815. * Returns the client IP addresses.
  816. *
  817. * In the returned array the most trusted IP address is first, and the
  818. * least trusted one last. The "real" client IP address is the last one,
  819. * but this is also the least trusted one. Trusted proxies are stripped.
  820. *
  821. * Use this method carefully; you should use getClientIp() instead.
  822. *
  823. * @return array
  824. *
  825. * @see getClientIp()
  826. */
  827. public function getClientIps()
  828. {
  829. $ip = $this->server->get('REMOTE_ADDR');
  831. if (!$this->isFromTrustedProxy()) {
  832. return [$ip];
  833. }
  835. return $this->getTrustedValues(self::HEADER_X_FORWARDED_FOR, $ip) ?: [$ip];
  836. }
  838. /**
  839. * Returns the client IP address.
  840. *
  841. * This method can read the client IP address from the "X-Forwarded-For" header
  842. * when trusted proxies were set via "setTrustedProxies()". The "X-Forwarded-For"
  843. * header value is a comma+space separated list of IP addresses, the left-most
  844. * being the original client, and each successive proxy that passed the request
  845. * adding the IP address where it received the request from.
  846. *
  847. * If your reverse proxy uses a different header name than "X-Forwarded-For",
  848. * ("Client-Ip" for instance), configure it via the $trustedHeaderSet
  849. * argument of the Request::setTrustedProxies() method instead.
  850. *
  851. * @return string|null
  852. *
  853. * @see getClientIps()
  854. * @see https://wikipedia.org/wiki/X-Forwarded-For
  855. */
  856. public function getClientIp()
  857. {
  858. $ipAddresses = $this->getClientIps();
  860. return $ipAddresses[0];
  861. }
  863. /**
  864. * Returns current script name.
  865. *
  866. * @return string
  867. */
  868. public function getScriptName()
  869. {
  870. return $this->server->get('SCRIPT_NAME', $this->server->get('ORIG_SCRIPT_NAME', ''));
  871. }
  873. /**
  874. * Returns the path being requested relative to the executed script.
  875. *
  876. * The path info always starts with a /.
  877. *
  878. * Suppose this request is instantiated from /mysite on localhost:
  879. *
  880. * * http://localhost/mysite returns an empty string
  881. * * http://localhost/mysite/about returns '/about'
  882. * * http://localhost/mysite/enco%20ded returns '/enco%20ded'
  883. * * http://localhost/mysite/about?var=1 returns '/about'
  884. *
  885. * @return string The raw path (i.e. not urldecoded)
  886. */
  887. public function getPathInfo()
  888. {
  889. if (null === $this->pathInfo) {
  890. $this->pathInfo = $this->preparePathInfo();
  891. }
  893. return $this->pathInfo;
  894. }
  896. /**
  897. * Returns the root path from which this request is executed.
  898. *
  899. * Suppose that an index.php file instantiates this request object:
  900. *
  901. * * http://localhost/index.php returns an empty string
  902. * * http://localhost/index.php/page returns an empty string
  903. * * http://localhost/web/index.php returns '/web'
  904. * * http://localhost/we%20b/index.php returns '/we%20b'
  905. *
  906. * @return string The raw path (i.e. not urldecoded)
  907. */
  908. public function getBasePath()
  909. {
  910. if (null === $this->basePath) {
  911. $this->basePath = $this->prepareBasePath();
  912. }
  914. return $this->basePath;
  915. }
  917. /**
  918. * Returns the root URL from which this request is executed.
  919. *
  920. * The base URL never ends with a /.
  921. *
  922. * This is similar to getBasePath(), except that it also includes the
  923. * script filename (e.g. index.php) if one exists.
  924. *
  925. * @return string The raw URL (i.e. not urldecoded)
  926. */
  927. public function getBaseUrl()
  928. {
  929. $trustedPrefix = '';
  931. // the proxy prefix must be prepended to any prefix being needed at the webserver level
  932. if ($this->isFromTrustedProxy() && $trustedPrefixValues = $this->getTrustedValues(self::HEADER_X_FORWARDED_PREFIX)) {
  933. $trustedPrefix = rtrim($trustedPrefixValues[0], '/');
  934. }
  936. return $trustedPrefix.$this->getBaseUrlReal();
  937. }
  939. /**
  940. * Returns the real base URL received by the webserver from which this request is executed.
  941. * The URL does not include trusted reverse proxy prefix.
  942. *
  943. * @return string The raw URL (i.e. not urldecoded)
  944. */
  945. private function getBaseUrlReal(): string
  946. {
  947. if (null === $this->baseUrl) {
  948. $this->baseUrl = $this->prepareBaseUrl();
  949. }
  951. return $this->baseUrl;
  952. }
  954. /**
  955. * Gets the request's scheme.
  956. *
  957. * @return string
  958. */
  959. public function getScheme()
  960. {
  961. return $this->isSecure() ? 'https' : 'http';
  962. }
  964. /**
  965. * Returns the port on which the request is made.
  966. *
  967. * This method can read the client port from the "X-Forwarded-Port" header
  968. * when trusted proxies were set via "setTrustedProxies()".
  969. *
  970. * The "X-Forwarded-Port" header must contain the client port.
  971. *
  972. * @return int|string|null Can be a string if fetched from the server bag
  973. */
  974. public function getPort()
  975. {
  976. if ($this->isFromTrustedProxy() && $host = $this->getTrustedValues(self::HEADER_X_FORWARDED_PORT)) {
  977. $host = $host[0];
  978. } elseif ($this->isFromTrustedProxy() && $host = $this->getTrustedValues(self::HEADER_X_FORWARDED_HOST)) {
  979. $host = $host[0];
  980. } elseif (!$host = $this->headers->get('HOST')) {
  981. return $this->server->get('SERVER_PORT');
  982. }
  984. if ('[' === $host[0]) {
  985. $pos = strpos($host, ':', strrpos($host, ']'));
  986. } else {
  987. $pos = strrpos($host, ':');
  988. }
  990. if (false !== $pos && $port = substr($host, $pos + 1)) {
  991. return (int) $port;
  992. }
  994. return 'https' === $this->getScheme() ? 443 : 80;
  995. }
  997. /**
  998. * Returns the user.
  999. *
  1000. * @return string|null
  1001. */
  1002. public function getUser()
  1003. {
  1004. return $this->headers->get('PHP_AUTH_USER');
  1005. }
  1007. /**
  1008. * Returns the password.
  1009. *
  1010. * @return string|null
  1011. */
  1012. public function getPassword()
  1013. {
  1014. return $this->headers->get('PHP_AUTH_PW');
  1015. }
  1017. /**
  1018. * Gets the user info.
  1019. *
  1020. * @return string|null A user name if any and, optionally, scheme-specific information about how to gain authorization to access the server
  1021. */
  1022. public function getUserInfo()
  1023. {
  1024. $userinfo = $this->getUser();
  1026. $pass = $this->getPassword();
  1027. if ('' != $pass) {
  1028. $userinfo .= ":$pass";
  1029. }
  1031. return $userinfo;
  1032. }
  1034. /**
  1035. * Returns the HTTP host being requested.
  1036. *
  1037. * The port name will be appended to the host if it's non-standard.
  1038. *
  1039. * @return string
  1040. */
  1041. public function getHttpHost()
  1042. {
  1043. $scheme = $this->getScheme();
  1044. $port = $this->getPort();
  1046. if (('http' == $scheme && 80 == $port) || ('https' == $scheme && 443 == $port)) {
  1047. return $this->getHost();
  1048. }
  1050. return $this->getHost().':'.$port;
  1051. }
  1053. /**
  1054. * Returns the requested URI (path and query string).
  1055. *
  1056. * @return string The raw URI (i.e. not URI decoded)
  1057. */
  1058. public function getRequestUri()
  1059. {
  1060. if (null === $this->requestUri) {
  1061. $this->requestUri = $this->prepareRequestUri();
  1062. }
  1064. return $this->requestUri;
  1065. }
  1067. /**
  1068. * Gets the scheme and HTTP host.
  1069. *
  1070. * If the URL was called with basic authentication, the user
  1071. * and the password are not added to the generated string.
  1072. *
  1073. * @return string
  1074. */
  1075. public function getSchemeAndHttpHost()
  1076. {
  1077. return $this->getScheme().'://'.$this->getHttpHost();
  1078. }
  1080. /**
  1081. * Generates a normalized URI (URL) for the Request.
  1082. *
  1083. * @return string
  1084. *
  1085. * @see getQueryString()
  1086. */
  1087. public function getUri()
  1088. {
  1089. if (null !== $qs = $this->getQueryString()) {
  1090. $qs = '?'.$qs;
  1091. }
  1093. return $this->getSchemeAndHttpHost().$this->getBaseUrl().$this->getPathInfo().$qs;
  1094. }
  1096. /**
  1097. * Generates a normalized URI for the given path.
  1098. *
  1099. * @param string $path A path to use instead of the current one
  1100. *
  1101. * @return string
  1102. */
  1103. public function getUriForPath(string $path)
  1104. {
  1105. return $this->getSchemeAndHttpHost().$this->getBaseUrl().$path;
  1106. }
  1108. /**
  1109. * Returns the path as relative reference from the current Request path.
  1110. *
  1111. * Only the URIs path component (no schema, host etc.) is relevant and must be given.
  1112. * Both paths must be absolute and not contain relative parts.
  1113. * Relative URLs from one resource to another are useful when generating self-contained downloadable document archives.
  1114. * Furthermore, they can be used to reduce the link size in documents.
  1115. *
  1116. * Example target paths, given a base path of "/a/b/c/d":
  1117. * - "/a/b/c/d" -> ""
  1118. * - "/a/b/c/" -> "./"
  1119. * - "/a/b/" -> "../"
  1120. * - "/a/b/c/other" -> "other"
  1121. * - "/a/x/y" -> "../../x/y"
  1122. *
  1123. * @return string
  1124. */
  1125. public function getRelativeUriForPath(string $path)
  1126. {
  1127. // be sure that we are dealing with an absolute path
  1128. if (!isset($path[0]) || '/' !== $path[0]) {
  1129. return $path;
  1130. }
  1132. if ($path === $basePath = $this->getPathInfo()) {
  1133. return '';
  1134. }
  1136. $sourceDirs = explode('/', isset($basePath[0]) && '/' === $basePath[0] ? substr($basePath, 1) : $basePath);
  1137. $targetDirs = explode('/', substr($path, 1));
  1138. array_pop($sourceDirs);
  1139. $targetFile = array_pop($targetDirs);
  1141. foreach ($sourceDirs as $i => $dir) {
  1142. if (isset($targetDirs[$i]) && $dir === $targetDirs[$i]) {
  1143. unset($sourceDirs[$i], $targetDirs[$i]);
  1144. } else {
  1145. break;
  1146. }
  1147. }
  1149. $targetDirs[] = $targetFile;
  1150. $path = str_repeat('../', \count($sourceDirs)).implode('/', $targetDirs);
  1152. // A reference to the same base directory or an empty subdirectory must be prefixed with "./".
  1153. // This also applies to a segment with a colon character (e.g., "file:colon") that cannot be used
  1154. // as the first segment of a relative-path reference, as it would be mistaken for a scheme name
  1155. // (see https://tools.ietf.org/html/rfc3986#section-4.2).
  1156. return !isset($path[0]) || '/' === $path[0]
  1157. || false !== ($colonPos = strpos($path, ':')) && ($colonPos < ($slashPos = strpos($path, '/')) || false === $slashPos)
  1158. ? "./$path" : $path;
  1159. }
  1161. /**
  1162. * Generates the normalized query string for the Request.
  1163. *
  1164. * It builds a normalized query string, where keys/value pairs are alphabetized
  1165. * and have consistent escaping.
  1166. *
  1167. * @return string|null
  1168. */
  1169. public function getQueryString()
  1170. {
  1171. $qs = static::normalizeQueryString($this->server->get('QUERY_STRING'));
  1173. return '' === $qs ? null : $qs;
  1174. }
  1176. /**
  1177. * Checks whether the request is secure or not.
  1178. *
  1179. * This method can read the client protocol from the "X-Forwarded-Proto" header
  1180. * when trusted proxies were set via "setTrustedProxies()".
  1181. *
  1182. * The "X-Forwarded-Proto" header must contain the protocol: "https" or "http".
  1183. *
  1184. * @return bool
  1185. */
  1186. public function isSecure()
  1187. {
  1188. if ($this->isFromTrustedProxy() && $proto = $this->getTrustedValues(self::HEADER_X_FORWARDED_PROTO)) {
  1189. return \in_array(strtolower($proto[0]), ['https', 'on', 'ssl', '1'], true);
  1190. }
  1192. $https = $this->server->get('HTTPS');
  1194. return !empty($https) && 'off' !== strtolower($https);
  1195. }
  1197. /**
  1198. * Returns the host name.
  1199. *
  1200. * This method can read the client host name from the "X-Forwarded-Host" header
  1201. * when trusted proxies were set via "setTrustedProxies()".
  1202. *
  1203. * The "X-Forwarded-Host" header must contain the client host name.
  1204. *
  1205. * @return string
  1206. *
  1207. * @throws SuspiciousOperationException when the host name is invalid or not trusted
  1208. */
  1209. public function getHost()
  1210. {
  1211. if ($this->isFromTrustedProxy() && $host = $this->getTrustedValues(self::HEADER_X_FORWARDED_HOST)) {
  1212. $host = $host[0];
  1213. } elseif (!$host = $this->headers->get('HOST')) {
  1214. if (!$host = $this->server->get('SERVER_NAME')) {
  1215. $host = $this->server->get('SERVER_ADDR', '');
  1216. }
  1217. }
  1219. // trim and remove port number from host
  1220. // host is lowercase as per RFC 952/2181
  1221. $host = strtolower(preg_replace('/:\d+$/', '', trim($host)));
  1223. // as the host can come from the user (HTTP_HOST and depending on the configuration, SERVER_NAME too can come from the user)
  1224. // check that it does not contain forbidden characters (see RFC 952 and RFC 2181)
  1225. // use preg_replace() instead of preg_match() to prevent DoS attacks with long host names
  1226. if ($host && '' !== preg_replace('/(?:^\[)?[a-zA-Z0-9-:\]_]+\.?/', '', $host)) {
  1227. if (!$this->isHostValid) {
  1228. return '';
  1229. }
  1230. $this->isHostValid = false;
  1232. throw new SuspiciousOperationException(sprintf('Invalid Host "%s".', $host));
  1233. }
  1235. if (\count(self::$trustedHostPatterns) > 0) {
  1236. // to avoid host header injection attacks, you should provide a list of trusted host patterns
  1238. if (\in_array($host, self::$trustedHosts)) {
  1239. return $host;
  1240. }
  1242. foreach (self::$trustedHostPatterns as $pattern) {
  1243. if (preg_match($pattern, $host)) {
  1244. self::$trustedHosts[] = $host;
  1246. return $host;
  1247. }
  1248. }
  1250. if (!$this->isHostValid) {
  1251. return '';
  1252. }
  1253. $this->isHostValid = false;
  1255. throw new SuspiciousOperationException(sprintf('Untrusted Host "%s".', $host));
  1256. }
  1258. return $host;
  1259. }
  1261. /**
  1262. * Sets the request method.
  1263. */
  1264. public function setMethod(string $method)
  1265. {
  1266. $this->method = null;
  1267. $this->server->set('REQUEST_METHOD', $method);
  1268. }
  1270. /**
  1271. * Gets the request "intended" method.
  1272. *
  1273. * If the X-HTTP-Method-Override header is set, and if the method is a POST,
  1274. * then it is used to determine the "real" intended HTTP method.
  1275. *
  1276. * The _method request parameter can also be used to determine the HTTP method,
  1277. * but only if enableHttpMethodParameterOverride() has been called.
  1278. *
  1279. * The method is always an uppercased string.
  1280. *
  1281. * @return string
  1282. *
  1283. * @see getRealMethod()
  1284. */
  1285. public function getMethod()
  1286. {
  1287. if (null !== $this->method) {
  1288. return $this->method;
  1289. }
  1291. $this->method = strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
  1293. if ('POST' !== $this->method) {
  1294. return $this->method;
  1295. }
  1297. $method = $this->headers->get('X-HTTP-METHOD-OVERRIDE');
  1299. if (!$method && self::$httpMethodParameterOverride) {
  1300. $method = $this->request->get('_method', $this->query->get('_method', 'POST'));
  1301. }
  1303. if (!\is_string($method)) {
  1304. return $this->method;
  1305. }
  1307. $method = strtoupper($method);
  1309. if (\in_array($method, ['GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'CONNECT', 'OPTIONS', 'PATCH', 'PURGE', 'TRACE'], true)) {
  1310. return $this->method = $method;
  1311. }
  1313. if (!preg_match('/^[A-Z]++$/D', $method)) {
  1314. throw new SuspiciousOperationException('Invalid HTTP method override.');
  1315. }
  1317. return $this->method = $method;
  1318. }
  1320. /**
  1321. * Gets the "real" request method.
  1322. *
  1323. * @return string
  1324. *
  1325. * @see getMethod()
  1326. */
  1327. public function getRealMethod()
  1328. {
  1329. return strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
  1330. }
  1332. /**
  1333. * Gets the mime type associated with the format.
  1334. *
  1335. * @return string|null
  1336. */
  1337. public function getMimeType(string $format)
  1338. {
  1339. if (null === static::$formats) {
  1340. static::initializeFormats();
  1341. }
  1343. return isset(static::$formats[$format]) ? static::$formats[$format][0] : null;
  1344. }
  1346. /**
  1347. * Gets the mime types associated with the format.
  1348. *
  1349. * @return array
  1350. */
  1351. public static function getMimeTypes(string $format)
  1352. {
  1353. if (null === static::$formats) {
  1354. static::initializeFormats();
  1355. }
  1357. return static::$formats[$format] ?? [];
  1358. }
  1360. /**
  1361. * Gets the format associated with the mime type.
  1362. *
  1363. * @return string|null
  1364. */
  1365. public function getFormat(?string $mimeType)
  1366. {
  1367. $canonicalMimeType = null;
  1368. if ($mimeType && false !== $pos = strpos($mimeType, ';')) {
  1369. $canonicalMimeType = trim(substr($mimeType, 0, $pos));
  1370. }
  1372. if (null === static::$formats) {
  1373. static::initializeFormats();
  1374. }
  1376. foreach (static::$formats as $format => $mimeTypes) {
  1377. if (\in_array($mimeType, (array) $mimeTypes)) {
  1378. return $format;
  1379. }
  1380. if (null !== $canonicalMimeType && \in_array($canonicalMimeType, (array) $mimeTypes)) {
  1381. return $format;
  1382. }
  1383. }
  1385. return null;
  1386. }
  1388. /**
  1389. * Associates a format with mime types.
  1390. *
  1391. * @param string|array $mimeTypes The associated mime types (the preferred one must be the first as it will be used as the content type)
  1392. */
  1393. public function setFormat(?string $format, $mimeTypes)
  1394. {
  1395. if (null === static::$formats) {
  1396. static::initializeFormats();
  1397. }
  1399. static::$formats[$format] = \is_array($mimeTypes) ? $mimeTypes : [$mimeTypes];
  1400. }
  1402. /**
  1403. * Gets the request format.
  1404. *
  1405. * Here is the process to determine the format:
  1406. *
  1407. * * format defined by the user (with setRequestFormat())
  1408. * * _format request attribute
  1409. * * $default
  1410. *
  1411. * @see getPreferredFormat
  1412. *
  1413. * @return string|null
  1414. */
  1415. public function getRequestFormat(?string $default = 'html')
  1416. {
  1417. if (null === $this->format) {
  1418. $this->format = $this->attributes->get('_format');
  1419. }
  1421. return $this->format ?? $default;
  1422. }
  1424. /**
  1425. * Sets the request format.
  1426. */
  1427. public function setRequestFormat(?string $format)
  1428. {
  1429. $this->format = $format;
  1430. }
  1432. /**
  1433. * Gets the format associated with the request.
  1434. *
  1435. * @return string|null
  1436. */
  1437. public function getContentType()
  1438. {
  1439. return $this->getFormat($this->headers->get('CONTENT_TYPE', ''));
  1440. }
  1442. /**
  1443. * Sets the default locale.
  1444. */
  1445. public function setDefaultLocale(string $locale)
  1446. {
  1447. $this->defaultLocale = $locale;
  1449. if (null === $this->locale) {
  1450. $this->setPhpDefaultLocale($locale);
  1451. }
  1452. }
  1454. /**
  1455. * Get the default locale.
  1456. *
  1457. * @return string
  1458. */
  1459. public function getDefaultLocale()
  1460. {
  1461. return $this->defaultLocale;
  1462. }
  1464. /**
  1465. * Sets the locale.
  1466. */
  1467. public function setLocale(string $locale)
  1468. {
  1469. $this->setPhpDefaultLocale($this->locale = $locale);
  1470. }
  1472. /**
  1473. * Get the locale.
  1474. *
  1475. * @return string
  1476. */
  1477. public function getLocale()
  1478. {
  1479. return $this->locale ?? $this->defaultLocale;
  1480. }
  1482. /**
  1483. * Checks if the request method is of specified type.
  1484. *
  1485. * @param string $method Uppercase request method (GET, POST etc)
  1486. *
  1487. * @return bool
  1488. */
  1489. public function isMethod(string $method)
  1490. {
  1491. return $this->getMethod() === strtoupper($method);
  1492. }
  1494. /**
  1495. * Checks whether or not the method is safe.
  1496. *
  1497. * @see https://tools.ietf.org/html/rfc7231#section-4.2.1
  1498. *
  1499. * @return bool
  1500. */
  1501. public function isMethodSafe()
  1502. {
  1503. return \in_array($this->getMethod(), ['GET', 'HEAD', 'OPTIONS', 'TRACE']);
  1504. }
  1506. /**
  1507. * Checks whether or not the method is idempotent.
  1508. *
  1509. * @return bool
  1510. */
  1511. public function isMethodIdempotent()
  1512. {
  1513. return \in_array($this->getMethod(), ['HEAD', 'GET', 'PUT', 'DELETE', 'TRACE', 'OPTIONS', 'PURGE']);
  1514. }
  1516. /**
  1517. * Checks whether the method is cacheable or not.
  1518. *
  1519. * @see https://tools.ietf.org/html/rfc7231#section-4.2.3
  1520. *
  1521. * @return bool
  1522. */
  1523. public function isMethodCacheable()
  1524. {
  1525. return \in_array($this->getMethod(), ['GET', 'HEAD']);
  1526. }
  1528. /**
  1529. * Returns the protocol version.
  1530. *
  1531. * If the application is behind a proxy, the protocol version used in the
  1532. * requests between the client and the proxy and between the proxy and the
  1533. * server might be different. This returns the former (from the "Via" header)
  1534. * if the proxy is trusted (see "setTrustedProxies()"), otherwise it returns
  1535. * the latter (from the "SERVER_PROTOCOL" server parameter).
  1536. *
  1537. * @return string|null
  1538. */
  1539. public function getProtocolVersion()
  1540. {
  1541. if ($this->isFromTrustedProxy()) {
  1542. preg_match('~^(HTTP/)?([1-9]\.[0-9]) ~', $this->headers->get('Via') ?? '', $matches);
  1544. if ($matches) {
  1545. return 'HTTP/'.$matches[2];
  1546. }
  1547. }
  1549. return $this->server->get('SERVER_PROTOCOL');
  1550. }
  1552. /**
  1553. * Returns the request body content.
  1554. *
  1555. * @param bool $asResource If true, a resource will be returned
  1556. *
  1557. * @return string|resource
  1558. */
  1559. public function getContent(bool $asResource = false)
  1560. {
  1561. $currentContentIsResource = \is_resource($this->content);
  1563. if (true === $asResource) {
  1564. if ($currentContentIsResource) {
  1565. rewind($this->content);
  1567. return $this->content;
  1568. }
  1570. // Content passed in parameter (test)
  1571. if (\is_string($this->content)) {
  1572. $resource = fopen('php://temp', 'r+');
  1573. fwrite($resource, $this->content);
  1574. rewind($resource);
  1576. return $resource;
  1577. }
  1579. $this->content = false;
  1581. return fopen('php://input', 'r');
  1582. }
  1584. if ($currentContentIsResource) {
  1585. rewind($this->content);
  1587. return stream_get_contents($this->content);
  1588. }
  1590. if (null === $this->content || false === $this->content) {
  1591. $this->content = file_get_contents('php://input');
  1592. }
  1594. return $this->content;
  1595. }
  1597. /**
  1598. * Gets the request body decoded as array, typically from a JSON payload.
  1599. *
  1600. * @return array
  1601. *
  1602. * @throws JsonException When the body cannot be decoded to an array
  1603. */
  1604. public function toArray()
  1605. {
  1606. if ('' === $content = $this->getContent()) {
  1607. throw new JsonException('Request body is empty.');
  1608. }
  1610. try {
  1611. $content = json_decode($content, true, 512, \JSON_BIGINT_AS_STRING | (\PHP_VERSION_ID >= 70300 ? \JSON_THROW_ON_ERROR : 0));
  1612. } catch (\JsonException $e) {
  1613. throw new JsonException('Could not decode request body.', $e->getCode(), $e);
  1614. }
  1616. if (\PHP_VERSION_ID < 70300 && \JSON_ERROR_NONE !== json_last_error()) {
  1617. throw new JsonException('Could not decode request body: '.json_last_error_msg(), json_last_error());
  1618. }
  1620. if (!\is_array($content)) {
  1621. throw new JsonException(sprintf('JSON content was expected to decode to an array, "%s" returned.', get_debug_type($content)));
  1622. }
  1624. return $content;
  1625. }
  1627. /**
  1628. * Gets the Etags.
  1629. *
  1630. * @return array
  1631. */
  1632. public function getETags()
  1633. {
  1634. return preg_split('/\s*,\s*/', $this->headers->get('If-None-Match', ''), -1, \PREG_SPLIT_NO_EMPTY);
  1635. }
  1637. /**
  1638. * @return bool
  1639. */
  1640. public function isNoCache()
  1641. {
  1642. return $this->headers->hasCacheControlDirective('no-cache') || 'no-cache' == $this->headers->get('Pragma');
  1643. }
  1645. /**
  1646. * Gets the preferred format for the response by inspecting, in the following order:
  1647. * * the request format set using setRequestFormat;
  1648. * * the values of the Accept HTTP header.
  1649. *
  1650. * Note that if you use this method, you should send the "Vary: Accept" header
  1651. * in the response to prevent any issues with intermediary HTTP caches.
  1652. */
  1653. public function getPreferredFormat(?string $default = 'html'): ?string
  1654. {
  1655. if (null !== $this->preferredFormat || null !== $this->preferredFormat = $this->getRequestFormat(null)) {
  1656. return $this->preferredFormat;
  1657. }
  1659. foreach ($this->getAcceptableContentTypes() as $mimeType) {
  1660. if ($this->preferredFormat = $this->getFormat($mimeType)) {
  1661. return $this->preferredFormat;
  1662. }
  1663. }
  1665. return $default;
  1666. }
  1668. /**
  1669. * Returns the preferred language.
  1670. *
  1671. * @param string[] $locales An array of ordered available locales
  1672. *
  1673. * @return string|null
  1674. */
  1675. public function getPreferredLanguage(?array $locales = null)
  1676. {
  1677. $preferredLanguages = $this->getLanguages();
  1679. if (empty($locales)) {
  1680. return $preferredLanguages[0] ?? null;
  1681. }
  1683. if (!$preferredLanguages) {
  1684. return $locales[0];
  1685. }
  1687. $extendedPreferredLanguages = [];
  1688. foreach ($preferredLanguages as $language) {
  1689. $extendedPreferredLanguages[] = $language;
  1690. if (false !== $position = strpos($language, '_')) {
  1691. $superLanguage = substr($language, 0, $position);
  1692. if (!\in_array($superLanguage, $preferredLanguages)) {
  1693. $extendedPreferredLanguages[] = $superLanguage;
  1694. }
  1695. }
  1696. }
  1698. $preferredLanguages = array_values(array_intersect($extendedPreferredLanguages, $locales));
  1700. return $preferredLanguages[0] ?? $locales[0];
  1701. }
  1703. /**
  1704. * Gets a list of languages acceptable by the client browser ordered in the user browser preferences.
  1705. *
  1706. * @return array
  1707. */
  1708. public function getLanguages()
  1709. {
  1710. if (null !== $this->languages) {
  1711. return $this->languages;
  1712. }
  1714. $languages = AcceptHeader::fromString($this->headers->get('Accept-Language'))->all();
  1715. $this->languages = [];
  1716. foreach ($languages as $acceptHeaderItem) {
  1717. $lang = $acceptHeaderItem->getValue();
  1718. if (str_contains($lang, '-')) {
  1719. $codes = explode('-', $lang);
  1720. if ('i' === $codes[0]) {
  1721. // Language not listed in ISO 639 that are not variants
  1722. // of any listed language, which can be registered with the
  1723. // i-prefix, such as i-cherokee
  1724. if (\count($codes) > 1) {
  1725. $lang = $codes[1];
  1726. }
  1727. } else {
  1728. for ($i = 0, $max = \count($codes); $i < $max; ++$i) {
  1729. if (0 === $i) {
  1730. $lang = strtolower($codes[0]);
  1731. } else {
  1732. $lang .= '_'.strtoupper($codes[$i]);
  1733. }
  1734. }
  1735. }
  1736. }
  1738. $this->languages[] = $lang;
  1739. }
  1741. return $this->languages;
  1742. }
  1744. /**
  1745. * Gets a list of charsets acceptable by the client browser in preferable order.
  1746. *
  1747. * @return array
  1748. */
  1749. public function getCharsets()
  1750. {
  1751. if (null !== $this->charsets) {
  1752. return $this->charsets;
  1753. }
  1755. return $this->charsets = array_map('strval', array_keys(AcceptHeader::fromString($this->headers->get('Accept-Charset'))->all()));
  1756. }
  1758. /**
  1759. * Gets a list of encodings acceptable by the client browser in preferable order.
  1760. *
  1761. * @return array
  1762. */
  1763. public function getEncodings()
  1764. {
  1765. if (null !== $this->encodings) {
  1766. return $this->encodings;
  1767. }
  1769. return $this->encodings = array_map('strval', array_keys(AcceptHeader::fromString($this->headers->get('Accept-Encoding'))->all()));
  1770. }
  1772. /**
  1773. * Gets a list of content types acceptable by the client browser in preferable order.
  1774. *
  1775. * @return array
  1776. */
  1777. public function getAcceptableContentTypes()
  1778. {
  1779. if (null !== $this->acceptableContentTypes) {
  1780. return $this->acceptableContentTypes;
  1781. }
  1783. return $this->acceptableContentTypes = array_map('strval', array_keys(AcceptHeader::fromString($this->headers->get('Accept'))->all()));
  1784. }
  1786. /**
  1787. * Returns true if the request is an XMLHttpRequest.
  1788. *
  1789. * It works if your JavaScript library sets an X-Requested-With HTTP header.
  1790. * It is known to work with common JavaScript frameworks:
  1791. *
  1792. * @see https://wikipedia.org/wiki/List_of_Ajax_frameworks#JavaScript
  1793. *
  1794. * @return bool
  1795. */
  1796. public function isXmlHttpRequest()
  1797. {
  1798. return 'XMLHttpRequest' == $this->headers->get('X-Requested-With');
  1799. }
  1801. /**
  1802. * Checks whether the client browser prefers safe content or not according to RFC8674.
  1803. *
  1804. * @see https://tools.ietf.org/html/rfc8674
  1805. */
  1806. public function preferSafeContent(): bool
  1807. {
  1808. if (null !== $this->isSafeContentPreferred) {
  1809. return $this->isSafeContentPreferred;
  1810. }
  1812. if (!$this->isSecure()) {
  1813. // see https://tools.ietf.org/html/rfc8674#section-3
  1814. return $this->isSafeContentPreferred = false;
  1815. }
  1817. return $this->isSafeContentPreferred = AcceptHeader::fromString($this->headers->get('Prefer'))->has('safe');
  1818. }
  1820. /*
  1821. * The following methods are derived from code of the Zend Framework (1.10dev - 2010-01-24)
  1822. *
  1823. * Code subject to the new BSD license (https://framework.zend.com/license).
  1824. *
  1825. * Copyright (c) 2005-2010 Zend Technologies USA Inc. (https://www.zend.com/)
  1826. */
  1828. protected function prepareRequestUri()
  1829. {
  1830. $requestUri = '';
  1832. if ($this->isIisRewrite() && '' != $this->server->get('UNENCODED_URL')) {
  1833. // IIS7 with URL Rewrite: make sure we get the unencoded URL (double slash problem)
  1834. $requestUri = $this->server->get('UNENCODED_URL');
  1835. $this->server->remove('UNENCODED_URL');
  1836. } elseif ($this->server->has('REQUEST_URI')) {
  1837. $requestUri = $this->server->get('REQUEST_URI');
  1839. if ('' !== $requestUri && '/' === $requestUri[0]) {
  1840. // To only use path and query remove the fragment.
  1841. if (false !== $pos = strpos($requestUri, '#')) {
  1842. $requestUri = substr($requestUri, 0, $pos);
  1843. }
  1844. } else {
  1845. // HTTP proxy reqs setup request URI with scheme and host [and port] + the URL path,
  1846. // only use URL path.
  1847. $uriComponents = parse_url($requestUri);
  1849. if (isset($uriComponents['path'])) {
  1850. $requestUri = $uriComponents['path'];
  1851. }
  1853. if (isset($uriComponents['query'])) {
  1854. $requestUri .= '?'.$uriComponents['query'];
  1855. }
  1856. }
  1857. } elseif ($this->server->has('ORIG_PATH_INFO')) {
  1858. // IIS 5.0, PHP as CGI
  1859. $requestUri = $this->server->get('ORIG_PATH_INFO');
  1860. if ('' != $this->server->get('QUERY_STRING')) {
  1861. $requestUri .= '?'.$this->server->get('QUERY_STRING');
  1862. }
  1863. $this->server->remove('ORIG_PATH_INFO');
  1864. }
  1866. // normalize the request URI to ease creating sub-requests from this request
  1867. $this->server->set('REQUEST_URI', $requestUri);
  1869. return $requestUri;
  1870. }
  1872. /**
  1873. * Prepares the base URL.
  1874. *
  1875. * @return string
  1876. */
  1877. protected function prepareBaseUrl()
  1878. {
  1879. $filename = basename($this->server->get('SCRIPT_FILENAME', ''));
  1881. if (basename($this->server->get('SCRIPT_NAME', '')) === $filename) {
  1882. $baseUrl = $this->server->get('SCRIPT_NAME');
  1883. } elseif (basename($this->server->get('PHP_SELF', '')) === $filename) {
  1884. $baseUrl = $this->server->get('PHP_SELF');
  1885. } elseif (basename($this->server->get('ORIG_SCRIPT_NAME', '')) === $filename) {
  1886. $baseUrl = $this->server->get('ORIG_SCRIPT_NAME'); // 1and1 shared hosting compatibility
  1887. } else {
  1888. // Backtrack up the script_filename to find the portion matching
  1889. // php_self
  1890. $path = $this->server->get('PHP_SELF', '');
  1891. $file = $this->server->get('SCRIPT_FILENAME', '');
  1892. $segs = explode('/', trim($file, '/'));
  1893. $segs = array_reverse($segs);
  1894. $index = 0;
  1895. $last = \count($segs);
  1896. $baseUrl = '';
  1897. do {
  1898. $seg = $segs[$index];
  1899. $baseUrl = '/'.$seg.$baseUrl;
  1900. ++$index;
  1901. } while ($last > $index && (false !== $pos = strpos($path, $baseUrl)) && 0 != $pos);
  1902. }
  1904. // Does the baseUrl have anything in common with the request_uri?
  1905. $requestUri = $this->getRequestUri();
  1906. if ('' !== $requestUri && '/' !== $requestUri[0]) {
  1907. $requestUri = '/'.$requestUri;
  1908. }
  1910. if ($baseUrl && null !== $prefix = $this->getUrlencodedPrefix($requestUri, $baseUrl)) {
  1911. // full $baseUrl matches
  1912. return $prefix;
  1913. }
  1915. if ($baseUrl && null !== $prefix = $this->getUrlencodedPrefix($requestUri, rtrim(\dirname($baseUrl), '/'.\DIRECTORY_SEPARATOR).'/')) {
  1916. // directory portion of $baseUrl matches
  1917. return rtrim($prefix, '/'.\DIRECTORY_SEPARATOR);
  1918. }
  1920. $truncatedRequestUri = $requestUri;
  1921. if (false !== $pos = strpos($requestUri, '?')) {
  1922. $truncatedRequestUri = substr($requestUri, 0, $pos);
  1923. }
  1925. $basename = basename($baseUrl ?? '');
  1926. if (empty($basename) || !strpos(rawurldecode($truncatedRequestUri), $basename)) {
  1927. // no match whatsoever; set it blank
  1928. return '';
  1929. }
  1931. // If using mod_rewrite or ISAPI_Rewrite strip the script filename
  1932. // out of baseUrl. $pos !== 0 makes sure it is not matching a value
  1933. // from PATH_INFO or QUERY_STRING
  1934. if (\strlen($requestUri) >= \strlen($baseUrl) && (false !== $pos = strpos($requestUri, $baseUrl)) && 0 !== $pos) {
  1935. $baseUrl = substr($requestUri, 0, $pos + \strlen($baseUrl));
  1936. }
  1938. return rtrim($baseUrl, '/'.\DIRECTORY_SEPARATOR);
  1939. }
  1941. /**
  1942. * Prepares the base path.
  1943. *
  1944. * @return string
  1945. */
  1946. protected function prepareBasePath()
  1947. {
  1948. $baseUrl = $this->getBaseUrl();
  1949. if (empty($baseUrl)) {
  1950. return '';
  1951. }
  1953. $filename = basename($this->server->get('SCRIPT_FILENAME'));
  1954. if (basename($baseUrl) === $filename) {
  1955. $basePath = \dirname($baseUrl);
  1956. } else {
  1957. $basePath = $baseUrl;
  1958. }
  1960. if ('\\' === \DIRECTORY_SEPARATOR) {
  1961. $basePath = str_replace('\\', '/', $basePath);
  1962. }
  1964. return rtrim($basePath, '/');
  1965. }
  1967. /**
  1968. * Prepares the path info.
  1969. *
  1970. * @return string
  1971. */
  1972. protected function preparePathInfo()
  1973. {
  1974. if (null === ($requestUri = $this->getRequestUri())) {
  1975. return '/';
  1976. }
  1978. // Remove the query string from REQUEST_URI
  1979. if (false !== $pos = strpos($requestUri, '?')) {
  1980. $requestUri = substr($requestUri, 0, $pos);
  1981. }
  1982. if ('' !== $requestUri && '/' !== $requestUri[0]) {
  1983. $requestUri = '/'.$requestUri;
  1984. }
  1986. if (null === ($baseUrl = $this->getBaseUrlReal())) {
  1987. return $requestUri;
  1988. }
  1990. $pathInfo = substr($requestUri, \strlen($baseUrl));
  1991. if (false === $pathInfo || '' === $pathInfo) {
  1992. // If substr() returns false then PATH_INFO is set to an empty string
  1993. return '/';
  1994. }
  1996. return $pathInfo;
  1997. }
  1999. /**
  2000. * Initializes HTTP request formats.
  2001. */
  2002. protected static function initializeFormats()
  2003. {
  2004. static::$formats = [
  2005. 'html' => ['text/html', 'application/xhtml+xml'],
  2006. 'txt' => ['text/plain'],
  2007. 'js' => ['application/javascript', 'application/x-javascript', 'text/javascript'],
  2008. 'css' => ['text/css'],
  2009. 'json' => ['application/json', 'application/x-json'],
  2010. 'jsonld' => ['application/ld+json'],
  2011. 'xml' => ['text/xml', 'application/xml', 'application/x-xml'],
  2012. 'rdf' => ['application/rdf+xml'],
  2013. 'atom' => ['application/atom+xml'],
  2014. 'rss' => ['application/rss+xml'],
  2015. 'form' => ['application/x-www-form-urlencoded', 'multipart/form-data'],
  2016. ];
  2017. }
  2019. private function setPhpDefaultLocale(string $locale): void
  2020. {
  2021. // if either the class Locale doesn't exist, or an exception is thrown when
  2022. // setting the default locale, the intl module is not installed, and
  2023. // the call can be ignored:
  2024. try {
  2025. if (class_exists(\Locale::class, false)) {
  2026. \Locale::setDefault($locale);
  2027. }
  2028. } catch (\Exception $e) {
  2029. }
  2030. }
  2032. /**
  2033. * Returns the prefix as encoded in the string when the string starts with
  2034. * the given prefix, null otherwise.
  2035. */
  2036. private function getUrlencodedPrefix(string $string, string $prefix): ?string
  2037. {
  2038. if ($this->isIisRewrite()) {
  2039. // ISS with UrlRewriteModule might report SCRIPT_NAME/PHP_SELF with wrong case
  2040. // see https://github.com/php/php-src/issues/11981
  2041. if (0 !== stripos(rawurldecode($string), $prefix)) {
  2042. return null;
  2043. }
  2044. } elseif (!str_starts_with(rawurldecode($string), $prefix)) {
  2045. return null;
  2046. }
  2048. $len = \strlen($prefix);
  2050. if (preg_match(sprintf('#^(%%[[:xdigit:]]{2}|.){%d}#', $len), $string, $match)) {
  2051. return $match[0];
  2052. }
  2054. return null;
  2055. }
  2057. private static function createRequestFromFactory(array $query = [], array $request = [], array $attributes = [], array $cookies = [], array $files = [], array $server = [], $content = null): self
  2058. {
  2059. if (self::$requestFactory) {
  2060. $request = (self::$requestFactory)($query, $request, $attributes, $cookies, $files, $server, $content);
  2062. if (!$request instanceof self) {
  2063. throw new \LogicException('The Request factory must return an instance of Symfony\Component\HttpFoundation\Request.');
  2064. }
  2066. return $request;
  2067. }
  2069. return new static($query, $request, $attributes, $cookies, $files, $server, $content);
  2070. }
  2072. /**
  2073. * Indicates whether this request originated from a trusted proxy.
  2074. *
  2075. * This can be useful to determine whether or not to trust the
  2076. * contents of a proxy-specific header.
  2077. *
  2078. * @return bool
  2079. */
  2080. public function isFromTrustedProxy()
  2081. {
  2082. return self::$trustedProxies && IpUtils::checkIp($this->server->get('REMOTE_ADDR', ''), self::$trustedProxies);
  2083. }
  2085. private function getTrustedValues(int $type, ?string $ip = null): array
  2086. {
  2087. $clientValues = [];
  2088. $forwardedValues = [];
  2090. if ((self::$trustedHeaderSet & $type) && $this->headers->has(self::TRUSTED_HEADERS[$type])) {
  2091. foreach (explode(',', $this->headers->get(self::TRUSTED_HEADERS[$type])) as $v) {
  2092. $clientValues[] = (self::HEADER_X_FORWARDED_PORT === $type ? '0.0.0.0:' : '').trim($v);
  2093. }
  2094. }
  2096. if ((self::$trustedHeaderSet & self::HEADER_FORWARDED) && (isset(self::FORWARDED_PARAMS[$type])) && $this->headers->has(self::TRUSTED_HEADERS[self::HEADER_FORWARDED])) {
  2097. $forwarded = $this->headers->get(self::TRUSTED_HEADERS[self::HEADER_FORWARDED]);
  2098. $parts = HeaderUtils::split($forwarded, ',;=');
  2099. $forwardedValues = [];
  2100. $param = self::FORWARDED_PARAMS[$type];
  2101. foreach ($parts as $subParts) {
  2102. if (null === $v = HeaderUtils::combine($subParts)[$param] ?? null) {
  2103. continue;
  2104. }
  2105. if (self::HEADER_X_FORWARDED_PORT === $type) {
  2106. if (str_ends_with($v, ']') || false === $v = strrchr($v, ':')) {
  2107. $v = $this->isSecure() ? ':443' : ':80';
  2108. }
  2109. $v = '0.0.0.0'.$v;
  2110. }
  2111. $forwardedValues[] = $v;
  2112. }
  2113. }
  2115. if (null !== $ip) {
  2116. $clientValues = $this->normalizeAndFilterClientIps($clientValues, $ip);
  2117. $forwardedValues = $this->normalizeAndFilterClientIps($forwardedValues, $ip);
  2118. }
  2120. if ($forwardedValues === $clientValues || !$clientValues) {
  2121. return $forwardedValues;
  2122. }
  2124. if (!$forwardedValues) {
  2125. return $clientValues;
  2126. }
  2128. if (!$this->isForwardedValid) {
  2129. return null !== $ip ? ['0.0.0.0', $ip] : [];
  2130. }
  2131. $this->isForwardedValid = false;
  2133. throw new ConflictingHeadersException(sprintf('The request has both a trusted "%s" header and a trusted "%s" header, conflicting with each other. You should either configure your proxy to remove one of them, or configure your project to distrust the offending one.', self::TRUSTED_HEADERS[self::HEADER_FORWARDED], self::TRUSTED_HEADERS[$type]));
  2134. }
  2136. private function normalizeAndFilterClientIps(array $clientIps, string $ip): array
  2137. {
  2138. if (!$clientIps) {
  2139. return [];
  2140. }
  2141. $clientIps[] = $ip; // Complete the IP chain with the IP the request actually came from
  2142. $firstTrustedIp = null;
  2144. foreach ($clientIps as $key => $clientIp) {
  2145. if (strpos($clientIp, '.')) {
  2146. // Strip :port from IPv4 addresses. This is allowed in Forwarded
  2147. // and may occur in X-Forwarded-For.
  2148. $i = strpos($clientIp, ':');
  2149. if ($i) {
  2150. $clientIps[$key] = $clientIp = substr($clientIp, 0, $i);
  2151. }
  2152. } elseif (str_starts_with($clientIp, '[')) {
  2153. // Strip brackets and :port from IPv6 addresses.
  2154. $i = strpos($clientIp, ']', 1);
  2155. $clientIps[$key] = $clientIp = substr($clientIp, 1, $i - 1);
  2156. }
  2158. if (!filter_var($clientIp, \FILTER_VALIDATE_IP)) {
  2159. unset($clientIps[$key]);
  2161. continue;
  2162. }
  2164. if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
  2165. unset($clientIps[$key]);
  2167. // Fallback to this when the client IP falls into the range of trusted proxies
  2168. if (null === $firstTrustedIp) {
  2169. $firstTrustedIp = $clientIp;
  2170. }
  2171. }
  2172. }
  2174. // Now the IP chain contains only untrusted proxies and the client IP
  2175. return $clientIps ? array_reverse($clientIps) : [$firstTrustedIp];
  2176. }
  2178. /**
  2179. * Is this IIS with UrlRewriteModule?
  2180. *
  2181. * This method consumes, caches and removed the IIS_WasUrlRewritten env var,
  2182. * so we don't inherit it to sub-requests.
  2183. */
  2184. private function isIisRewrite(): bool
  2185. {
  2186. if (1 === $this->server->getInt('IIS_WasUrlRewritten')) {
  2187. $this->isIisRewrite = true;
  2188. $this->server->remove('IIS_WasUrlRewritten');
  2189. }
  2191. return $this->isIisRewrite;
  2192. }
  2193. }