vendor/symfony/http-foundation/Request.php line 42

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpFoundation;
use Symfony\Component\HttpFoundation\Exception\BadRequestException;
use Symfony\Component\HttpFoundation\Exception\ConflictingHeadersException;
use Symfony\Component\HttpFoundation\Exception\JsonException;
use Symfony\Component\HttpFoundation\Exception\SessionNotFoundException;
use Symfony\Component\HttpFoundation\Exception\SuspiciousOperationException;
use Symfony\Component\HttpFoundation\Session\SessionInterface;
// Help opcache.preload discover always-needed symbols
class_exists(AcceptHeader::class);
class_exists(FileBag::class);
class_exists(HeaderBag::class);
class_exists(HeaderUtils::class);
class_exists(InputBag::class);
class_exists(ParameterBag::class);
class_exists(ServerBag::class);
/**
* Request represents an HTTP request.
*
* The methods dealing with URL accept / return a raw path (% encoded):
* * getBasePath
* * getBaseUrl
* * getPathInfo
* * getRequestUri
* * getUri
* * getUriForPath
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Request
{
public const HEADER_FORWARDED = 0b000001; // When using RFC 7239
public const HEADER_X_FORWARDED_FOR = 0b000010;
public const HEADER_X_FORWARDED_HOST = 0b000100;
public const HEADER_X_FORWARDED_PROTO = 0b001000;
public const HEADER_X_FORWARDED_PORT = 0b010000;
public const HEADER_X_FORWARDED_PREFIX = 0b100000;
public const HEADER_X_FORWARDED_AWS_ELB = 0b0011010; // AWS ELB doesn't send X-Forwarded-Host
public const HEADER_X_FORWARDED_TRAEFIK = 0b0111110; // All "X-Forwarded-*" headers sent by Traefik reverse proxy
public const METHOD_HEAD = 'HEAD';
public const METHOD_GET = 'GET';
public const METHOD_POST = 'POST';
public const METHOD_PUT = 'PUT';
public const METHOD_PATCH = 'PATCH';
public const METHOD_DELETE = 'DELETE';
public const METHOD_PURGE = 'PURGE';
public const METHOD_OPTIONS = 'OPTIONS';
public const METHOD_TRACE = 'TRACE';
public const METHOD_CONNECT = 'CONNECT';
public const METHOD_QUERY = 'QUERY';
/**
* @var string[]
*/
protected static array $trustedProxies = [];
/**
* @var string[]
*/
protected static array $trustedHostPatterns = [];
/**
* @var string[]
*/
protected static array $trustedHosts = [];
protected static bool $httpMethodParameterOverride = false;
/**
* The HTTP methods that can be overridden.
*
* @var uppercase-string[]|null
*/
protected static ?array $allowedHttpMethodOverride = null;
/**
* Custom parameters.
*/
public ParameterBag $attributes;
/**
* Request body parameters ($_POST).
*
* @see getPayload() for portability between content types
*/
public InputBag $request;
/**
* Query string parameters ($_GET).
*
* @var InputBag<string>
*/
public InputBag $query;
/**
* Server and execution environment parameters ($_SERVER).
*/
public ServerBag $server;
/**
* Uploaded files ($_FILES).
*/
public FileBag $files;
/**
* Cookies ($_COOKIE).
*
* @var InputBag<string>
*/
public InputBag $cookies;
/**
* Headers (taken from the $_SERVER).
*/
public HeaderBag $headers;
/**
* @var string|resource|false|null
*/
protected $content;
/**
* @var string[]|null
*/
protected ?array $languages = null;
/**
* @var string[]|null
*/
protected ?array $charsets = null;
/**
* @var string[]|null
*/
protected ?array $encodings = null;
/**
* @var string[]|null
*/
protected ?array $acceptableContentTypes = null;
protected ?string $pathInfo = null;
protected ?string $requestUri = null;
protected ?string $baseUrl = null;
protected ?string $basePath = null;
protected ?string $method = null;
protected ?string $format = null;
protected SessionInterface|\Closure|null $session = null;
protected ?string $locale = null;
protected string $defaultLocale = 'en';
/**
* @var array<string, string[]>|null
*/
protected static ?array $formats = null;
protected static ?\Closure $requestFactory = null;
private ?string $preferredFormat = null;
private bool $isHostValid = true;
private bool $isForwardedValid = true;
private bool $isSafeContentPreferred;
private array $trustedValuesCache = [];
private static int $trustedHeaderSet = -1;
private const FORWARDED_PARAMS = [
self::HEADER_X_FORWARDED_FOR => 'for',
self::HEADER_X_FORWARDED_HOST => 'host',
self::HEADER_X_FORWARDED_PROTO => 'proto',
self::HEADER_X_FORWARDED_PORT => 'host',
];
/**
* Names for headers that can be trusted when
* using trusted proxies.
*
* The FORWARDED header is the standard as of rfc7239.
*
* The other headers are non-standard, but widely used
* by popular reverse proxies (like Apache mod_proxy or Amazon EC2).
*/
private const TRUSTED_HEADERS = [
self::HEADER_FORWARDED => 'FORWARDED',
self::HEADER_X_FORWARDED_FOR => 'X_FORWARDED_FOR',
self::HEADER_X_FORWARDED_HOST => 'X_FORWARDED_HOST',
self::HEADER_X_FORWARDED_PROTO => 'X_FORWARDED_PROTO',
self::HEADER_X_FORWARDED_PORT => 'X_FORWARDED_PORT',
self::HEADER_X_FORWARDED_PREFIX => 'X_FORWARDED_PREFIX',
];
/**
* This mapping is used when no exact MIME match is found in $formats.
*
* It enables mappings like application/soap+xml -> xml.
*
* @see https://datatracker.ietf.org/doc/html/rfc6839
* @see https://datatracker.ietf.org/doc/html/rfc7303
* @see https://www.iana.org/assignments/media-types/media-types.xhtml
*/
private const STRUCTURED_SUFFIX_FORMATS = [
'json' => 'json',
'xml' => 'xml',
'xhtml' => 'html',
'cbor' => 'cbor',
'zip' => 'zip',
'ber' => 'asn1',
'der' => 'asn1',
'tlv' => 'tlv',
'wbxml' => 'xml',
'yaml' => 'yaml',
];
private bool $isIisRewrite = false;
/**
* @param array $query The GET parameters
* @param array $request The POST parameters
* @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
* @param array $cookies The COOKIE parameters
* @param array $files The FILES parameters
* @param array $server The SERVER parameters
* @param string|resource|null $content The raw body data
*/
public function __construct(array $query = [], array $request = [], array $attributes = [], array $cookies = [], array $files = [], array $server = [], $content = null)
{
$this->initialize($query, $request, $attributes, $cookies, $files, $server, $content);
}
/**
* Sets the parameters for this request.
*
* This method also re-initializes all properties.
*
* @param array $query The GET parameters
* @param array $request The POST parameters
* @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
* @param array $cookies The COOKIE parameters
* @param array $files The FILES parameters
* @param array $server The SERVER parameters
* @param string|resource|null $content The raw body data
*/
public function initialize(array $query = [], array $request = [], array $attributes = [], array $cookies = [], array $files = [], array $server = [], $content = null): void
{
$this->request = new InputBag($request);
$this->query = new InputBag($query);
$this->attributes = new ParameterBag($attributes);
$this->cookies = new InputBag($cookies);
$this->files = new FileBag($files);
$this->server = new ServerBag($server);
$this->headers = new HeaderBag($this->server->getHeaders());
$this->content = $content;
$this->languages = null;
$this->charsets = null;
$this->encodings = null;
$this->acceptableContentTypes = null;
$this->pathInfo = null;
$this->requestUri = null;
$this->baseUrl = null;
$this->basePath = null;
$this->method = null;
$this->format = null;
}
/**
* Creates a new request with values from PHP's super globals.
*/
public static function createFromGlobals(): static
{
if (!\in_array($_SERVER['REQUEST_METHOD'] ?? null, ['PUT', 'DELETE', 'PATCH', 'QUERY'], true)) {
return self::createRequestFromFactory($_GET, $_POST, [], $_COOKIE, $_FILES, $_SERVER);
}
try {
[$post, $files] = request_parse_body();
} catch (\RequestParseBodyException) {
$post = $_POST;
$files = $_FILES;
}
return self::createRequestFromFactory($_GET, $post, [], $_COOKIE, $files, $_SERVER);
}
/**
* Creates a Request based on a given URI and configuration.
*
* The information contained in the URI always take precedence
* over the other information (server and parameters).
*
* @param string $uri The URI
* @param string $method The HTTP method
* @param array $parameters The query (GET) or request (POST) parameters
* @param array $cookies The request cookies ($_COOKIE)
* @param array $files The request files ($_FILES)
* @param array $server The server parameters ($_SERVER)
* @param string|resource|null $content The raw body data
*
* @throws BadRequestException When the URI is invalid
*/
public static function create(string $uri, string $method = 'GET', array $parameters = [], array $cookies = [], array $files = [], array $server = [], $content = null): static
{
$server = array_replace([
'SERVER_NAME' => 'localhost',
'SERVER_PORT' => 80,
'HTTP_HOST' => 'localhost',
'HTTP_USER_AGENT' => 'Symfony',
'HTTP_ACCEPT' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'HTTP_ACCEPT_LANGUAGE' => 'en-us,en;q=0.5',
'HTTP_ACCEPT_CHARSET' => 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
'REMOTE_ADDR' => '127.0.0.1',
'SCRIPT_NAME' => '',
'SCRIPT_FILENAME' => '',
'SERVER_PROTOCOL' => 'HTTP/1.1',
'REQUEST_TIME' => time(),
'REQUEST_TIME_FLOAT' => microtime(true),
], $server);
$server['PATH_INFO'] = '';
$server['REQUEST_METHOD'] = strtoupper($method);
if (($i = strcspn($uri, ':/?#')) && ':' === ($uri[$i] ?? null) && (strspn($uri, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-.') !== $i || strcspn($uri, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'))) {
throw new BadRequestException('Invalid URI: Scheme is malformed.');
}
if (false === $components = parse_url(\strlen($uri) !== strcspn($uri, '?#') ? $uri : $uri.'#')) {
throw new BadRequestException('Invalid URI.');
}
$part = ($components['user'] ?? '').':'.($components['pass'] ?? '');
if (':' !== $part && \strlen($part) !== strcspn($part, '[]')) {
throw new BadRequestException('Invalid URI: Userinfo is malformed.');
}
if (($part = $components['host'] ?? '') && !self::isHostValid($part)) {
throw new BadRequestException('Invalid URI: Host is malformed.');
}
if (false !== ($i = strpos($uri, '\\')) && $i < strcspn($uri, '?#')) {
throw new BadRequestException('Invalid URI: A URI cannot contain a backslash.');
}
if (\strlen($uri) !== strcspn($uri, "\r\n\t")) {
throw new BadRequestException('Invalid URI: A URI cannot contain CR/LF/TAB characters.');
}
if ('' !== $uri && (\ord($uri[0]) <= 32 || \ord($uri[-1]) <= 32)) {
throw new BadRequestException('Invalid URI: A URI must not start nor end with ASCII control characters or spaces.');
}
if (isset($components['host'])) {
$server['SERVER_NAME'] = $components['host'];
$server['HTTP_HOST'] = $components['host'];
}
if (isset($components['scheme'])) {
if ('https' === $components['scheme']) {
$server['HTTPS'] = 'on';
$server['SERVER_PORT'] = 443;
} else {
unset($server['HTTPS']);
$server['SERVER_PORT'] = 80;
}
}
if (isset($components['port'])) {
$server['SERVER_PORT'] = $components['port'];
$server['HTTP_HOST'] .= ':'.$components['port'];
}
if (isset($components['user'])) {
$server['PHP_AUTH_USER'] = $components['user'];
}
if (isset($components['pass'])) {
$server['PHP_AUTH_PW'] = $components['pass'];
}
if (!isset($components['path'])) {
$components['path'] = '/';
}
switch (strtoupper($method)) {
case 'POST':
case 'PUT':
case 'DELETE':
case 'QUERY':
if (!isset($server['CONTENT_TYPE'])) {
$server['CONTENT_TYPE'] = 'application/x-www-form-urlencoded';
}
// no break
case 'PATCH':
$request = $parameters;
$query = [];
break;
default:
$request = [];
$query = $parameters;
break;
}
$queryString = '';
if (isset($components['query'])) {
parse_str(html_entity_decode($components['query']), $qs);
if ($query) {
$query = array_replace($qs, $query);
$queryString = http_build_query($query, '', '&');
} else {
$query = $qs;
$queryString = $components['query'];
}
} elseif ($query) {
$queryString = http_build_query($query, '', '&');
}
$server['REQUEST_URI'] = $components['path'].('' !== $queryString ? '?'.$queryString : '');
$server['QUERY_STRING'] = $queryString;
return self::createRequestFromFactory($query, $request, [], $cookies, $files, $server, $content);
}
/**
* Sets a callable able to create a Request instance.
*
* This is mainly useful when you need to override the Request class
* to keep BC with an existing system. It should not be used for any
* other purpose.
*/
public static function setFactory(?callable $callable): void
{
self::$requestFactory = null === $callable ? null : $callable(...);
}
/**
* Clones a request and overrides some of its parameters.
*
* @param array|null $query The GET parameters
* @param array|null $request The POST parameters
* @param array|null $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
* @param array|null $cookies The COOKIE parameters
* @param array|null $files The FILES parameters
* @param array|null $server The SERVER parameters
*/
public function duplicate(?array $query = null, ?array $request = null, ?array $attributes = null, ?array $cookies = null, ?array $files = null, ?array $server = null): static
{
$dup = clone $this;
if (null !== $query) {
$dup->query = new InputBag($query);
}
if (null !== $request) {
$dup->request = new InputBag($request);
}
if (null !== $attributes) {
$dup->attributes = new ParameterBag($attributes);
}
if (null !== $cookies) {
$dup->cookies = new InputBag($cookies);
}
if (null !== $files) {
$dup->files = new FileBag($files);
}
if (null !== $server) {
$dup->server = new ServerBag($server);
$dup->headers = new HeaderBag($dup->server->getHeaders());
}
$dup->languages = null;
$dup->charsets = null;
$dup->encodings = null;
$dup->acceptableContentTypes = null;
$dup->pathInfo = null;
$dup->requestUri = null;
$dup->baseUrl = null;
$dup->basePath = null;
$dup->method = null;
$dup->format = null;
if (!$dup->attributes->has('_format') && $this->attributes->has('_format')) {
$dup->attributes->set('_format', $this->attributes->get('_format'));
}
if (!$dup->getRequestFormat(null)) {
$dup->setRequestFormat($this->getRequestFormat(null));
}
return $dup;
}
/**
* Clones the current request.
*
* Note that the session is not cloned as duplicated requests
* are most of the time sub-requests of the main one.
*/
public function __clone()
{
$this->query = clone $this->query;
$this->request = clone $this->request;
$this->attributes = clone $this->attributes;
$this->cookies = clone $this->cookies;
$this->files = clone $this->files;
$this->server = clone $this->server;
$this->headers = clone $this->headers;
}
public function __toString(): string
{
$content = $this->getContent();
$cookieHeader = '';
$cookies = [];
foreach ($this->cookies as $k => $v) {
$cookies[] = \is_array($v) ? http_build_query([$k => $v], '', '; ', \PHP_QUERY_RFC3986) : "$k=$v";
}
if ($cookies) {
$cookieHeader = 'Cookie: '.implode('; ', $cookies)."\r\n";
}
return
\sprintf('%s %s %s', $this->getMethod(), $this->getRequestUri(), $this->server->get('SERVER_PROTOCOL'))."\r\n".
$this->headers.
$cookieHeader."\r\n".
$content;
}
/**
* Overrides the PHP global variables according to this request instance.
*
* It overrides $_GET, $_POST, $_REQUEST, $_SERVER, $_COOKIE.
* $_FILES is never overridden, see rfc1867
*/
public function overrideGlobals(): void
{
$this->server->set('QUERY_STRING', static::normalizeQueryString(http_build_query($this->query->all(), '', '&')));
$_GET = $this->query->all();
$_POST = $this->request->all();
$_SERVER = $this->server->all();
$_COOKIE = $this->cookies->all();
foreach ($this->headers->all() as $key => $value) {
$key = strtoupper(str_replace('-', '_', $key));
if (\in_array($key, ['CONTENT_TYPE', 'CONTENT_LENGTH', 'CONTENT_MD5'], true)) {
$_SERVER[$key] = implode(', ', $value);
} else {
$_SERVER['HTTP_'.$key] = implode(', ', $value);
}
}
$request = ['g' => $_GET, 'p' => $_POST, 'c' => $_COOKIE];
$requestOrder = \ini_get('request_order') ?: \ini_get('variables_order');
$requestOrder = preg_replace('#[^cgp]#', '', strtolower($requestOrder)) ?: 'gp';
$_REQUEST = [[]];
foreach (str_split($requestOrder) as $order) {
$_REQUEST[] = $request[$order];
}
$_REQUEST = array_merge(...$_REQUEST);
}
/**
* Sets a list of trusted proxies.
*
* You should only list the reverse proxies that you manage directly.
*
* @param array $proxies A list of trusted proxies, the string 'REMOTE_ADDR' will be replaced with $_SERVER['REMOTE_ADDR'] and 'PRIVATE_SUBNETS' by IpUtils::PRIVATE_SUBNETS
* @param int-mask-of<Request::HEADER_*> $trustedHeaderSet A bit field to set which headers to trust from your proxies
*/
public static function setTrustedProxies(array $proxies, int $trustedHeaderSet): void
{
if (false !== $i = array_search('REMOTE_ADDR', $proxies, true)) {
if (isset($_SERVER['REMOTE_ADDR'])) {
$proxies[$i] = $_SERVER['REMOTE_ADDR'];
} else {
unset($proxies[$i]);
$proxies = array_values($proxies);
}
}
if (false !== ($i = array_search('PRIVATE_SUBNETS', $proxies, true)) || false !== ($i = array_search('private_ranges', $proxies, true))) {
unset($proxies[$i]);
$proxies = array_merge($proxies, IpUtils::PRIVATE_SUBNETS);
}
self::$trustedProxies = $proxies;
self::$trustedHeaderSet = $trustedHeaderSet;
}
/**
* Gets the list of trusted proxies.
*
* @return string[]
*/
public static function getTrustedProxies(): array
{
return self::$trustedProxies;
}
/**
* Gets the set of trusted headers from trusted proxies.
*
* @return int A bit field of Request::HEADER_* that defines which headers are trusted from your proxies
*/
public static function getTrustedHeaderSet(): int
{
return self::$trustedHeaderSet;
}
/**
* Sets a list of trusted host patterns.
*
* You should only list the hosts you manage using regexs.
*
* @param array $hostPatterns A list of trusted host patterns
*/
public static function setTrustedHosts(array $hostPatterns): void
{
self::$trustedHostPatterns = array_map(fn ($hostPattern) => \sprintf('{%s}i', $hostPattern), $hostPatterns);
// we need to reset trusted hosts on trusted host patterns change
self::$trustedHosts = [];
}
/**
* Gets the list of trusted host patterns.
*
* @return string[]
*/
public static function getTrustedHosts(): array
{
return self::$trustedHostPatterns;
}
/**
* Normalizes a query string.
*
* It builds a normalized query string, where keys/value pairs are alphabetized,
* have consistent escaping and unneeded delimiters are removed.
*/
public static function normalizeQueryString(?string $qs): string
{
if ('' === ($qs ?? '')) {
return '';
}
$qs = HeaderUtils::parseQuery($qs);
ksort($qs);
return http_build_query($qs, '', '&', \PHP_QUERY_RFC3986);
}
/**
* Enables support for the _method request parameter to determine the intended HTTP method.
*
* Be warned that enabling this feature might lead to CSRF issues in your code.
* Check that you are using CSRF tokens when required.
* If the HTTP method parameter override is enabled, an html-form with method "POST" can be altered
* and used to send a "PUT" or "DELETE" request via the _method request parameter.
* If these methods are not protected against CSRF, this presents a possible vulnerability.
*
* The HTTP method can only be overridden when the real HTTP method is POST.
*/
public static function enableHttpMethodParameterOverride(): void
{
self::$httpMethodParameterOverride = true;
}
/**
* Checks whether support for the _method request parameter is enabled.
*/
public static function getHttpMethodParameterOverride(): bool
{
return self::$httpMethodParameterOverride;
}
/**
* Sets the list of HTTP methods that can be overridden.
*
* Set to null to allow all methods to be overridden (default). Set to an
* empty array to disallow overrides entirely. Otherwise, provide the list
* of uppercased method names that are allowed.
*
* @param uppercase-string[]|null $methods
*/
public static function setAllowedHttpMethodOverride(?array $methods): void
{
if (array_intersect($methods ?? [], ['GET', 'HEAD', 'CONNECT', 'TRACE'])) {
throw new \InvalidArgumentException('The HTTP methods "GET", "HEAD", "CONNECT", and "TRACE" cannot be overridden.');
}
self::$allowedHttpMethodOverride = $methods;
}
/**
* Gets the list of HTTP methods that can be overridden.
*
* @return uppercase-string[]|null
*/
public static function getAllowedHttpMethodOverride(): ?array
{
return self::$allowedHttpMethodOverride;
}
/**
* Gets the Session.
*
* @throws SessionNotFoundException When session is not set properly
*/
public function getSession(): SessionInterface
{
$session = $this->session;
if (!$session instanceof SessionInterface && null !== $session) {
$this->setSession($session = $session());
}
if (null === $session) {
throw new SessionNotFoundException('Session has not been set.');
}
return $session;
}
/**
* Whether the request contains a Session which was started in one of the
* previous requests.
*/
public function hasPreviousSession(): bool
{
// the check for $this->session avoids malicious users trying to fake a session cookie with proper name
return $this->hasSession() && $this->cookies->has($this->getSession()->getName());
}
/**
* Whether the request contains a Session object.
*
* This method does not give any information about the state of the session object,
* like whether the session is started or not. It is just a way to check if this Request
* is associated with a Session instance.
*
* @param bool $skipIfUninitialized When true, ignores factories injected by `setSessionFactory`
*/
public function hasSession(bool $skipIfUninitialized = false): bool
{
return null !== $this->session && (!$skipIfUninitialized || $this->session instanceof SessionInterface);
}
public function setSession(SessionInterface $session): void
{
$this->session = $session;
}
/**
* @internal
*
* @param callable(): SessionInterface $factory
*/
public function setSessionFactory(callable $factory): void
{
$this->session = $factory(...);
}
/**
* Returns the client IP addresses.
*
* In the returned array the most trusted IP address is first, and the
* least trusted one last. The "real" client IP address is the last one,
* but this is also the least trusted one. Trusted proxies are stripped.
*
* Use this method carefully; you should use getClientIp() instead.
*
* @see getClientIp()
*/
public function getClientIps(): array
{
$ip = $this->server->get('REMOTE_ADDR');
if (!$this->isFromTrustedProxy()) {
return [$ip];
}
return $this->getTrustedValues(self::HEADER_X_FORWARDED_FOR, $ip) ?: [$ip];
}
/**
* Returns the client IP address.
*
* This method can read the client IP address from the "X-Forwarded-For" header
* when trusted proxies were set via "setTrustedProxies()". The "X-Forwarded-For"
* header value is a comma+space separated list of IP addresses, the left-most
* being the original client, and each successive proxy that passed the request
* adding the IP address where it received the request from.
*
* If your reverse proxy uses a different header name than "X-Forwarded-For",
* ("Client-Ip" for instance), configure it via the $trustedHeaderSet
* argument of the Request::setTrustedProxies() method instead.
*
* @see getClientIps()
* @see https://wikipedia.org/wiki/X-Forwarded-For
*/
public function getClientIp(): ?string
{
return $this->getClientIps()[0];
}
/**
* Returns current script name.
*/
public function getScriptName(): string
{
return $this->server->get('SCRIPT_NAME', $this->server->get('ORIG_SCRIPT_NAME', ''));
}
/**
* Returns the path being requested relative to the executed script.
*
* The path info always starts with a /.
*
* Suppose this request is instantiated from /mysite on localhost:
*
* * http://localhost/mysite returns '/'
* * http://localhost/mysite/about returns '/about'
* * http://localhost/mysite/enco%20ded returns '/enco%20ded'
* * http://localhost/mysite/about?var=1 returns '/about'
*
* @return string The raw path (i.e. not urldecoded)
*/
public function getPathInfo(): string
{
return $this->pathInfo ??= $this->preparePathInfo();
}
/**
* Returns the root path from which this request is executed.
*
* Suppose that an index.php file instantiates this request object:
*
* * http://localhost/index.php returns an empty string
* * http://localhost/index.php/page returns an empty string
* * http://localhost/web/index.php returns '/web'
* * http://localhost/we%20b/index.php returns '/we%20b'
*
* @return string The raw path (i.e. not urldecoded)
*/
public function getBasePath(): string
{
return $this->basePath ??= $this->prepareBasePath();
}
/**
* Returns the root URL from which this request is executed.
*
* The base URL never ends with a /.
*
* This is similar to getBasePath(), except that it also includes the
* script filename (e.g. index.php) if one exists.
*
* @return string The raw URL (i.e. not urldecoded)
*/
public function getBaseUrl(): string
{
$trustedPrefix = '';
// the proxy prefix must be prepended to any prefix being needed at the webserver level
if ($this->isFromTrustedProxy() && $trustedPrefixValues = $this->getTrustedValues(self::HEADER_X_FORWARDED_PREFIX)) {
$trustedPrefix = rtrim($trustedPrefixValues[0], '/');
}
return $trustedPrefix.$this->getBaseUrlReal();
}
/**
* Returns the real base URL received by the webserver from which this request is executed.
* The URL does not include trusted reverse proxy prefix.
*
* @return string The raw URL (i.e. not urldecoded)
*/
private function getBaseUrlReal(): string
{
return $this->baseUrl ??= $this->prepareBaseUrl();
}
/**
* Gets the request's scheme.
*/
public function getScheme(): string
{
return $this->isSecure() ? 'https' : 'http';
}
/**
* Returns the port on which the request is made.
*
* This method can read the client port from the "X-Forwarded-Port" header
* when trusted proxies were set via "setTrustedProxies()".
*
* The "X-Forwarded-Port" header must contain the client port.
*
* @return int|string|null Can be a string if fetched from the server bag
*/
public function getPort(): int|string|null
{
if ($this->isFromTrustedProxy() && $host = $this->getTrustedValues(self::HEADER_X_FORWARDED_PORT)) {
$host = $host[0];
} elseif ($this->isFromTrustedProxy() && $host = $this->getTrustedValues(self::HEADER_X_FORWARDED_HOST)) {
$host = $host[0];
} elseif (!$host = $this->headers->get('HOST')) {
return $this->server->get('SERVER_PORT');
}
if ('[' === $host[0]) {
$pos = strpos($host, ':', strrpos($host, ']'));
} else {
$pos = strrpos($host, ':');
}
if (false !== $pos && $port = substr($host, $pos + 1)) {
return (int) $port;
}
return 'https' === $this->getScheme() ? 443 : 80;
}
/**
* Returns the user.
*/
public function getUser(): ?string
{
return $this->headers->get('PHP_AUTH_USER');
}
/**
* Returns the password.
*/
public function getPassword(): ?string
{
return $this->headers->get('PHP_AUTH_PW');
}
/**
* Gets the user info.
*
* @return string|null A user name if any and, optionally, scheme-specific information about how to gain authorization to access the server
*/
public function getUserInfo(): ?string
{
$userinfo = $this->getUser();
$pass = $this->getPassword();
if ('' != $pass) {
$userinfo .= ":$pass";
}
return $userinfo;
}
/**
* Returns the HTTP host being requested.
*
* The port name will be appended to the host if it's non-standard.
*/
public function getHttpHost(): string
{
$scheme = $this->getScheme();
$port = $this->getPort();
if (('http' === $scheme && 80 == $port) || ('https' === $scheme && 443 == $port)) {
return $this->getHost();
}
return $this->getHost().':'.$port;
}
/**
* Returns the requested URI (path and query string).
*
* @return string The raw URI (i.e. not URI decoded)
*/
public function getRequestUri(): string
{
return $this->requestUri ??= $this->prepareRequestUri();
}
/**
* Gets the scheme and HTTP host.
*
* If the URL was called with basic authentication, the user
* and the password are not added to the generated string.
*/
public function getSchemeAndHttpHost(): string
{
return $this->getScheme().'://'.$this->getHttpHost();
}
/**
* Generates a normalized URI (URL) for the Request.
*
* @see getQueryString()
*/
public function getUri(): string
{
if (null !== $qs = $this->getQueryString()) {
$qs = '?'.$qs;
}
return $this->getSchemeAndHttpHost().$this->getBaseUrl().$this->getPathInfo().$qs;
}
/**
* Generates a normalized URI for the given path.
*
* @param string $path A path to use instead of the current one
*/
public function getUriForPath(string $path): string
{
return $this->getSchemeAndHttpHost().$this->getBaseUrl().$path;
}
/**
* Returns the path as relative reference from the current Request path.
*
* Only the URIs path component (no schema, host etc.) is relevant and must be given.
* Both paths must be absolute and not contain relative parts.
* Relative URLs from one resource to another are useful when generating self-contained downloadable document archives.
* Furthermore, they can be used to reduce the link size in documents.
*
* Example target paths, given a base path of "/a/b/c/d":
* - "/a/b/c/d" -> ""
* - "/a/b/c/" -> "./"
* - "/a/b/" -> "../"
* - "/a/b/c/other" -> "other"
* - "/a/x/y" -> "../../x/y"
*/
public function getRelativeUriForPath(string $path): string
{
// be sure that we are dealing with an absolute path
if (!isset($path[0]) || '/' !== $path[0]) {
return $path;
}
if ($path === $basePath = $this->getPathInfo()) {
return '';
}
$sourceDirs = explode('/', isset($basePath[0]) && '/' === $basePath[0] ? substr($basePath, 1) : $basePath);
$targetDirs = explode('/', substr($path, 1));
array_pop($sourceDirs);
$targetFile = array_pop($targetDirs);
foreach ($sourceDirs as $i => $dir) {
if (isset($targetDirs[$i]) && $dir === $targetDirs[$i]) {
unset($sourceDirs[$i], $targetDirs[$i]);
} else {
break;
}
}
$targetDirs[] = $targetFile;
$path = str_repeat('../', \count($sourceDirs)).implode('/', $targetDirs);
// A reference to the same base directory or an empty subdirectory must be prefixed with "./".
// This also applies to a segment with a colon character (e.g., "file:colon") that cannot be used
// as the first segment of a relative-path reference, as it would be mistaken for a scheme name
// (see https://tools.ietf.org/html/rfc3986#section-4.2).
return !isset($path[0]) || '/' === $path[0]
|| false !== ($colonPos = strpos($path, ':')) && ($colonPos < ($slashPos = strpos($path, '/')) || false === $slashPos)
? "./$path" : $path;
}
/**
* Generates the normalized query string for the Request.
*
* It builds a normalized query string, where keys/value pairs are alphabetized
* and have consistent escaping.
*/
public function getQueryString(): ?string
{
$qs = static::normalizeQueryString($this->server->get('QUERY_STRING'));
return '' === $qs ? null : $qs;
}
/**
* Checks whether the request is secure or not.
*
* This method can read the client protocol from the "X-Forwarded-Proto" header
* when trusted proxies were set via "setTrustedProxies()".
*
* The "X-Forwarded-Proto" header must contain the protocol: "https" or "http".
*/
public function isSecure(): bool
{
if ($this->isFromTrustedProxy() && $proto = $this->getTrustedValues(self::HEADER_X_FORWARDED_PROTO)) {
return \in_array(strtolower($proto[0]), ['https', 'on', 'ssl', '1'], true);
}
$https = $this->server->get('HTTPS');
return $https && (!\is_string($https) || 'off' !== strtolower($https));
}
/**
* Returns the host name.
*
* This method can read the client host name from the "X-Forwarded-Host" header
* when trusted proxies were set via "setTrustedProxies()".
*
* The "X-Forwarded-Host" header must contain the client host name.
*
* @throws SuspiciousOperationException when the host name is invalid or not trusted
*/
public function getHost(): string
{
if ($this->isFromTrustedProxy() && $host = $this->getTrustedValues(self::HEADER_X_FORWARDED_HOST)) {
$host = $host[0];
} else {
$host = $this->headers->get('HOST') ?: $this->server->get('SERVER_NAME') ?: $this->server->get('SERVER_ADDR', '');
}
// trim and remove port number from host
// host is lowercase as per RFC 952/2181
$host = strtolower(preg_replace('/:\d+$/', '', trim($host)));
// the host can come from the user (HTTP_HOST and depending on the configuration, SERVER_NAME too can come from the user)
if ($host && !self::isHostValid($host)) {
if (!$this->isHostValid) {
return '';
}
$this->isHostValid = false;
throw new SuspiciousOperationException(\sprintf('Invalid Host "%s".', $host));
}
if (\count(self::$trustedHostPatterns) > 0) {
// to avoid host header injection attacks, you should provide a list of trusted host patterns
if (\in_array($host, self::$trustedHosts, true)) {
return $host;
}
foreach (self::$trustedHostPatterns as $pattern) {
if (preg_match($pattern, $host)) {
self::$trustedHosts[] = $host;
return $host;
}
}
if (!$this->isHostValid) {
return '';
}
$this->isHostValid = false;
throw new SuspiciousOperationException(\sprintf('Untrusted Host "%s".', $host));
}
return $host;
}
/**
* Sets the request method.
*/
public function setMethod(string $method): void
{
$this->method = null;
$this->server->set('REQUEST_METHOD', $method);
}
/**
* Gets the request "intended" method.
*
* If the X-HTTP-Method-Override header is set, and if the method is a POST,
* then it is used to determine the "real" intended HTTP method.
*
* The _method request parameter can also be used to determine the HTTP method,
* but only if enableHttpMethodParameterOverride() has been called.
*
* The method is always an uppercased string.
*
* @see getRealMethod()
*/
public function getMethod(): string
{
if (null !== $this->method) {
return $this->method;
}
$this->method = strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
if ('POST' !== $this->method || !(self::$allowedHttpMethodOverride ?? true)) {
return $this->method;
}
$method = $this->headers->get('X-HTTP-METHOD-OVERRIDE');
if (!$method && self::$httpMethodParameterOverride) {
$method = $this->request->get('_method', $this->query->get('_method', 'POST'));
}
if (!\is_string($method)) {
return $this->method;
}
$method = strtoupper($method);
if (\in_array($method, ['GET', 'HEAD', 'CONNECT', 'TRACE'], true)) {
return $this->method;
}
if (self::$allowedHttpMethodOverride && !\in_array($method, self::$allowedHttpMethodOverride, true)) {
return $this->method;
}
if (\strlen($method) !== strspn($method, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')) {
throw new SuspiciousOperationException('Invalid HTTP method override.');
}
return $this->method = $method;
}
/**
* Gets the "real" request method.
*
* @see getMethod()
*/
public function getRealMethod(): string
{
return strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
}
/**
* Gets the mime type associated with the format.
*/
public function getMimeType(string $format): ?string
{
if (null === static::$formats) {
static::initializeFormats();
}
return isset(static::$formats[$format]) ? static::$formats[$format][0] : null;
}
/**
* Gets the mime types associated with the format.
*
* @return string[]
*/
public static function getMimeTypes(string $format): array
{
if (null === static::$formats) {
static::initializeFormats();
}
return static::$formats[$format] ?? [];
}
/**
* Gets the format associated with the mime type.
*
* Resolution order:
* 1) Exact match on the full MIME type (e.g. "application/json").
* 2) Match on the canonical MIME type (i.e. before the first ";" parameter).
* 3) If the type is "application/*+suffix", use the structured syntax suffix
* mapping (e.g. "application/foo+json" → "json"), when available.
* 4) If $subtypeFallback is true and no match was found:
* - return the MIME subtype (without "x-" prefix), provided it does not
* contain a "+" (e.g. "application/x-yaml" → "yaml", "text/csv" → "csv").
*
* @param string|null $mimeType The mime type to check
* @param bool $subtypeFallback Whether to fall back to the subtype if no exact match is found
*/
public function getFormat(?string $mimeType, bool $subtypeFallback = false): ?string
{
$canonicalMimeType = null;
if ($mimeType && false !== $pos = strpos($mimeType, ';')) {
$canonicalMimeType = trim(substr($mimeType, 0, $pos));
}
if (null === static::$formats) {
static::initializeFormats();
}
$exactFormat = null;
$canonicalFormat = null;
foreach (static::$formats as $format => $mimeTypes) {
if (\in_array($mimeType, $mimeTypes, true)) {
$exactFormat = $format;
}
if (null !== $canonicalMimeType && \in_array($canonicalMimeType, $mimeTypes, true)) {
$canonicalFormat = $format;
}
}
if ($format = $exactFormat ?? $canonicalFormat) {
return $format;
}
if (!$canonicalMimeType ??= $mimeType) {
return null;
}
if (str_starts_with($canonicalMimeType, 'application/') && str_contains($canonicalMimeType, '+')) {
$suffix = substr(strrchr($canonicalMimeType, '+'), 1);
if (isset(self::STRUCTURED_SUFFIX_FORMATS[$suffix])) {
return self::STRUCTURED_SUFFIX_FORMATS[$suffix];
}
}
if ($subtypeFallback && str_contains($canonicalMimeType, '/')) {
[, $subtype] = explode('/', $canonicalMimeType, 2);
if (str_starts_with($subtype, 'x-')) {
$subtype = substr($subtype, 2);
}
if (!str_contains($subtype, '+')) {
return $subtype;
}
}
return null;
}
/**
* Associates a format with mime types.
*
* @param string|string[] $mimeTypes The associated mime types (the preferred one must be the first as it will be used as the content type)
*/
public function setFormat(string $format, string|array $mimeTypes): void
{
if (null === static::$formats) {
static::initializeFormats();
}
static::$formats[$format] = (array) $mimeTypes;
}
/**
* Gets the request format.
*
* Here is the process to determine the format:
*
* * format defined by the user (with setRequestFormat())
* * _format request attribute
* * $default
*
* @see getPreferredFormat
*/
public function getRequestFormat(?string $default = 'html'): ?string
{
$this->format ??= $this->attributes->get('_format');
return $this->format ?? $default;
}
/**
* Sets the request format.
*/
public function setRequestFormat(?string $format): void
{
$this->format = $format;
}
/**
* Gets the usual name of the format associated with the request's media type (provided in the Content-Type header).
*
* @see Request::$formats
*/
public function getContentTypeFormat(): ?string
{
return $this->getFormat($this->headers->get('CONTENT_TYPE', ''));
}
/**
* Sets the default locale.
*/
public function setDefaultLocale(string $locale): void
{
$this->defaultLocale = $locale;
if (null === $this->locale) {
$this->setPhpDefaultLocale($locale);
}
}
/**
* Get the default locale.
*/
public function getDefaultLocale(): string
{
return $this->defaultLocale;
}
/**
* Sets the locale.
*/
public function setLocale(string $locale): void
{
$this->setPhpDefaultLocale($this->locale = $locale);
}
/**
* Get the locale.
*/
public function getLocale(): string
{
return $this->locale ?? $this->defaultLocale;
}
/**
* Checks if the request method is of specified type.
*
* @param string $method Uppercase request method (GET, POST etc)
*/
public function isMethod(string $method): bool
{
return $this->getMethod() === strtoupper($method);
}
/**
* Checks whether or not the method is safe.
*
* @see https://tools.ietf.org/html/rfc7231#section-4.2.1
*/
public function isMethodSafe(): bool
{
return \in_array($this->getMethod(), ['GET', 'HEAD', 'OPTIONS', 'TRACE', 'QUERY'], true);
}
/**
* Checks whether or not the method is idempotent.
*/
public function isMethodIdempotent(): bool
{
return \in_array($this->getMethod(), ['HEAD', 'GET', 'PUT', 'DELETE', 'TRACE', 'OPTIONS', 'PURGE', 'QUERY'], true);
}
/**
* Checks whether the method is cacheable or not.
*
* @see https://tools.ietf.org/html/rfc7231#section-4.2.3
*/
public function isMethodCacheable(): bool
{
return \in_array($this->getMethod(), ['GET', 'HEAD', 'QUERY'], true);
}
/**
* Returns the protocol version.
*
* If the application is behind a proxy, the protocol version used in the
* requests between the client and the proxy and between the proxy and the
* server might be different. This returns the former (from the "Via" header)
* if the proxy is trusted (see "setTrustedProxies()"), otherwise it returns
* the latter (from the "SERVER_PROTOCOL" server parameter).
*/
public function getProtocolVersion(): ?string
{
if ($this->isFromTrustedProxy()) {
preg_match('~^(HTTP/)?([1-9]\.[0-9])\b~', $this->headers->get('Via') ?? '', $matches);
if ($matches) {
return 'HTTP/'.$matches[2];
}
}
return $this->server->get('SERVER_PROTOCOL');
}
/**
* Returns the request body content.
*
* @param bool $asResource If true, a resource will be returned
*
* @return string|resource
*
* @psalm-return ($asResource is true ? resource : string)
*/
public function getContent(bool $asResource = false)
{
if ($asResource) {
if (\is_resource($this->content)) {
rewind($this->content);
return $this->content;
}
// Content passed in parameter (test)
if (\is_string($this->content)) {
$resource = fopen('php://temp', 'r+');
fwrite($resource, $this->content);
rewind($resource);
return $resource;
}
$this->content = false;
return fopen('php://input', 'r');
}
if (\is_resource($this->content)) {
rewind($this->content);
return stream_get_contents($this->content);
}
if (null === $this->content || false === $this->content) {
$this->content = file_get_contents('php://input');
}
return $this->content;
}
/**
* Gets the decoded form or json request body.
*
* @throws JsonException When the body cannot be decoded to an array
*/
public function getPayload(): InputBag
{
if ($this->request->count()) {
return clone $this->request;
}
if ('' === $content = $this->getContent()) {
return new InputBag([]);
}
try {
$content = json_decode($content, true, 512, \JSON_BIGINT_AS_STRING | \JSON_THROW_ON_ERROR);
} catch (\JsonException $e) {
throw new JsonException('Could not decode request body.', $e->getCode(), $e);
}
if (!\is_array($content)) {
throw new JsonException(\sprintf('JSON content was expected to decode to an array, "%s" returned.', get_debug_type($content)));
}
return new InputBag($content);
}
/**
* Gets the request body decoded as array, typically from a JSON payload.
*
* @see getPayload() for portability between content types
*
* @throws JsonException When the body cannot be decoded to an array
*/
public function toArray(): array
{
if ('' === $content = $this->getContent()) {
throw new JsonException('Request body is empty.');
}
try {
$content = json_decode($content, true, 512, \JSON_BIGINT_AS_STRING | \JSON_THROW_ON_ERROR);
} catch (\JsonException $e) {
throw new JsonException('Could not decode request body.', $e->getCode(), $e);
}
if (!\is_array($content)) {
throw new JsonException(\sprintf('JSON content was expected to decode to an array, "%s" returned.', get_debug_type($content)));
}
return $content;
}
/**
* Gets the Etags.
*/
public function getETags(): array
{
return preg_split('/\s*,\s*/', $this->headers->get('If-None-Match', ''), -1, \PREG_SPLIT_NO_EMPTY);
}
public function isNoCache(): bool
{
return $this->headers->hasCacheControlDirective('no-cache') || 'no-cache' == $this->headers->get('Pragma');
}
/**
* Gets the preferred format for the response by inspecting, in the following order:
* * the request format set using setRequestFormat;
* * the values of the Accept HTTP header.
*
* Note that if you use this method, you should send the "Vary: Accept" header
* in the response to prevent any issues with intermediary HTTP caches.
*/
public function getPreferredFormat(?string $default = 'html'): ?string
{
if (!isset($this->preferredFormat) && null !== $preferredFormat = $this->getRequestFormat(null)) {
$this->preferredFormat = $preferredFormat;
}
if ($this->preferredFormat ?? null) {
return $this->preferredFormat;
}
foreach ($this->getAcceptableContentTypes() as $mimeType) {
if ($this->preferredFormat = $this->getFormat($mimeType)) {
return $this->preferredFormat;
}
}
return $default;
}
/**
* Returns the preferred language.
*
* @param string[] $locales An array of ordered available locales
*/
public function getPreferredLanguage(?array $locales = null): ?string
{
$preferredLanguages = $this->getLanguages();
if (!$locales) {
return $preferredLanguages[0] ?? null;
}
$locales = array_map($this->formatLocale(...), $locales);
if (!$preferredLanguages) {
return $locales[0];
}
$combinations = array_merge(...array_map($this->getLanguageCombinations(...), $preferredLanguages));
foreach ($combinations as $combination) {
foreach ($locales as $locale) {
if (str_starts_with($locale, $combination)) {
return $locale;
}
}
}
return $locales[0];
}
/**
* Gets a list of languages acceptable by the client browser ordered in the user browser preferences.
*
* @return string[]
*/
public function getLanguages(): array
{
if (null !== $this->languages) {
return $this->languages;
}
$languages = AcceptHeader::fromString($this->headers->get('Accept-Language'))->all();
$this->languages = [];
foreach ($languages as $acceptHeaderItem) {
$lang = $acceptHeaderItem->getValue();
$this->languages[] = self::formatLocale($lang);
}
$this->languages = array_unique($this->languages);
return $this->languages;
}
/**
* Strips the locale to only keep the canonicalized language value.
*
* Depending on the $locale value, this method can return values like :
* - language_Script_REGION: "fr_Latn_FR", "zh_Hans_TW"
* - language_Script: "fr_Latn", "zh_Hans"
* - language_REGION: "fr_FR", "zh_TW"
* - language: "fr", "zh"
*
* Invalid locale values are returned as is.
*
* @see https://wikipedia.org/wiki/IETF_language_tag
* @see https://datatracker.ietf.org/doc/html/rfc5646
*/
private static function formatLocale(string $locale): string
{
[$language, $script, $region] = self::getLanguageComponents($locale);
return implode('_', array_filter([$language, $script, $region]));
}
/**
* Returns an array of all possible combinations of the language components.
*
* For instance, if the locale is "fr_Latn_FR", this method will return:
* - "fr_Latn_FR"
* - "fr_Latn"
* - "fr_FR"
* - "fr"
*
* @return string[]
*/
private static function getLanguageCombinations(string $locale): array
{
[$language, $script, $region] = self::getLanguageComponents($locale);
return array_unique([
implode('_', array_filter([$language, $script, $region])),
implode('_', array_filter([$language, $script])),
implode('_', array_filter([$language, $region])),
$language,
]);
}
/**
* Returns an array with the language components of the locale.
*
* For example:
* - If the locale is "fr_Latn_FR", this method will return "fr", "Latn", "FR"
* - If the locale is "fr_FR", this method will return "fr", null, "FR"
* - If the locale is "zh_Hans", this method will return "zh", "Hans", null
*
* @see https://wikipedia.org/wiki/IETF_language_tag
* @see https://datatracker.ietf.org/doc/html/rfc5646
*
* @return array{string, string|null, string|null}
*/
private static function getLanguageComponents(string $locale): array
{
$locale = str_replace('_', '-', strtolower($locale));
$pattern = '/^([a-zA-Z]{2,3}|i-[a-zA-Z]{5,})(?:-([a-zA-Z]{4}))?(?:-([a-zA-Z]{2}))?(?:-(.+))?$/';
if (!preg_match($pattern, $locale, $matches)) {
return [$locale, null, null];
}
if (str_starts_with($matches[1], 'i-')) {
// Language not listed in ISO 639 that are not variants
// of any listed language, which can be registered with the
// i-prefix, such as i-cherokee
$matches[1] = substr($matches[1], 2);
}
return [
$matches[1],
isset($matches[2]) ? ucfirst(strtolower($matches[2])) : null,
isset($matches[3]) ? strtoupper($matches[3]) : null,
];
}
/**
* Gets a list of charsets acceptable by the client browser in preferable order.
*
* @return string[]
*/
public function getCharsets(): array
{
return $this->charsets ??= array_map('strval', array_keys(AcceptHeader::fromString($this->headers->get('Accept-Charset'))->all()));
}
/**
* Gets a list of encodings acceptable by the client browser in preferable order.
*
* @return string[]
*/
public function getEncodings(): array
{
return $this->encodings ??= array_map('strval', array_keys(AcceptHeader::fromString($this->headers->get('Accept-Encoding'))->all()));
}
/**
* Gets a list of content types acceptable by the client browser in preferable order.
*
* @return string[]
*/
public function getAcceptableContentTypes(): array
{
return $this->acceptableContentTypes ??= array_map('strval', array_keys(AcceptHeader::fromString($this->headers->get('Accept'))->all()));
}
/**
* Returns true if the request is an XMLHttpRequest.
*
* It works if your JavaScript library sets an X-Requested-With HTTP header.
* It is known to work with common JavaScript frameworks:
*
* @see https://wikipedia.org/wiki/List_of_Ajax_frameworks#JavaScript
*/
public function isXmlHttpRequest(): bool
{
return 'XMLHttpRequest' == $this->headers->get('X-Requested-With');
}
/**
* Checks whether the client browser prefers safe content or not according to RFC8674.
*
* @see https://tools.ietf.org/html/rfc8674
*/
public function preferSafeContent(): bool
{
if (isset($this->isSafeContentPreferred)) {
return $this->isSafeContentPreferred;
}
if (!$this->isSecure()) {
// see https://tools.ietf.org/html/rfc8674#section-3
return $this->isSafeContentPreferred = false;
}
return $this->isSafeContentPreferred = AcceptHeader::fromString($this->headers->get('Prefer'))->has('safe');
}
/*
* The following methods are derived from code of the Zend Framework (1.10dev - 2010-01-24)
*
* Code subject to the new BSD license (https://framework.zend.com/license).
*
* Copyright (c) 2005-2010 Zend Technologies USA Inc. (https://www.zend.com/)
*/
protected function prepareRequestUri(): string
{
$requestUri = '';
if ($this->isIisRewrite() && '' != $this->server->get('UNENCODED_URL')) {
// IIS7 with URL Rewrite: make sure we get the unencoded URL (double slash problem)
$requestUri = $this->server->get('UNENCODED_URL');
$this->server->remove('UNENCODED_URL');
} elseif ($this->server->has('REQUEST_URI')) {
$requestUri = $this->server->get('REQUEST_URI');
if ('' !== $requestUri && '/' === $requestUri[0]) {
// To only use path and query remove the fragment.
if (false !== $pos = strpos($requestUri, '#')) {
$requestUri = substr($requestUri, 0, $pos);
}
} else {
// HTTP proxy reqs setup request URI with scheme and host [and port] + the URL path,
// only use URL path.
$uriComponents = parse_url($requestUri);
if (isset($uriComponents['path'])) {
$requestUri = $uriComponents['path'];
}
if (isset($uriComponents['query'])) {
$requestUri .= '?'.$uriComponents['query'];
}
}
} elseif ($this->server->has('ORIG_PATH_INFO')) {
// IIS 5.0, PHP as CGI
$requestUri = $this->server->get('ORIG_PATH_INFO');
if ('' != $this->server->get('QUERY_STRING')) {
$requestUri .= '?'.$this->server->get('QUERY_STRING');
}
$this->server->remove('ORIG_PATH_INFO');
}
// normalize the request URI to ease creating sub-requests from this request
$this->server->set('REQUEST_URI', $requestUri);
return $requestUri;
}
/**
* Prepares the base URL.
*/
protected function prepareBaseUrl(): string
{
$filename = basename($this->server->get('SCRIPT_FILENAME', ''));
if (basename($this->server->get('SCRIPT_NAME', '')) === $filename) {
$baseUrl = $this->server->get('SCRIPT_NAME');
} elseif (basename($this->server->get('PHP_SELF', '')) === $filename) {
$baseUrl = $this->server->get('PHP_SELF');
} elseif (basename($this->server->get('ORIG_SCRIPT_NAME', '')) === $filename) {
$baseUrl = $this->server->get('ORIG_SCRIPT_NAME'); // 1and1 shared hosting compatibility
} else {
// Backtrack up the script_filename to find the portion matching
// php_self
$path = $this->server->get('PHP_SELF', '');
$file = $this->server->get('SCRIPT_FILENAME', '');
$segs = explode('/', trim($file, '/'));
$segs = array_reverse($segs);
$index = 0;
$last = \count($segs);
$baseUrl = '';
do {
$seg = $segs[$index];
$baseUrl = '/'.$seg.$baseUrl;
++$index;
} while ($last > $index && (false !== $pos = strpos($path, $baseUrl)) && 0 != $pos);
}
// Does the baseUrl have anything in common with the request_uri?
$requestUri = $this->getRequestUri();
if ('' !== $requestUri && '/' !== $requestUri[0]) {
$requestUri = '/'.$requestUri;
}
if ($baseUrl && null !== $prefix = $this->getUrlencodedPrefix($requestUri, $baseUrl)) {
// full $baseUrl matches
return $prefix;
}
if ($baseUrl && null !== $prefix = $this->getUrlencodedPrefix($requestUri, rtrim(\dirname($baseUrl), '/'.\DIRECTORY_SEPARATOR).'/')) {
// directory portion of $baseUrl matches
return rtrim($prefix, '/'.\DIRECTORY_SEPARATOR);
}
$truncatedRequestUri = $requestUri;
if (false !== $pos = strpos($requestUri, '?')) {
$truncatedRequestUri = substr($requestUri, 0, $pos);
}
$basename = basename($baseUrl ?? '');
if (!$basename || !strpos(rawurldecode($truncatedRequestUri), $basename)) {
// no match whatsoever; set it blank
return '';
}
// If using mod_rewrite or ISAPI_Rewrite strip the script filename
// out of baseUrl. $pos !== 0 makes sure it is not matching a value
// from PATH_INFO or QUERY_STRING
if (\strlen($requestUri) >= \strlen($baseUrl) && (false !== $pos = strpos($requestUri, $baseUrl)) && 0 !== $pos) {
$baseUrl = substr($requestUri, 0, $pos + \strlen($baseUrl));
}
return rtrim($baseUrl, '/'.\DIRECTORY_SEPARATOR);
}
/**
* Prepares the base path.
*/
protected function prepareBasePath(): string
{
$baseUrl = $this->getBaseUrl();
if (!$baseUrl) {
return '';
}
$filename = basename($this->server->get('SCRIPT_FILENAME'));
if (basename($baseUrl) === $filename) {
$basePath = \dirname($baseUrl);
} else {
$basePath = $baseUrl;
}
if ('\\' === \DIRECTORY_SEPARATOR) {
$basePath = str_replace('\\', '/', $basePath);
}
return rtrim($basePath, '/');
}
/**
* Prepares the path info.
*/
protected function preparePathInfo(): string
{
if (null === ($requestUri = $this->getRequestUri())) {
return '/';
}
// Remove the query string from REQUEST_URI
if (false !== $pos = strpos($requestUri, '?')) {
$requestUri = substr($requestUri, 0, $pos);
}
if ('' !== $requestUri && '/' !== $requestUri[0]) {
$requestUri = '/'.$requestUri;
}
if (null === ($baseUrl = $this->getBaseUrlReal())) {
return $requestUri;
}
$pathInfo = substr($requestUri, \strlen($baseUrl));
if ('' === $pathInfo || '/' !== $pathInfo[0]) {
return '/'.$pathInfo;
}
return $pathInfo;
}
/**
* Initializes HTTP request formats.
*/
protected static function initializeFormats(): void
{
static::$formats = [
'html' => ['text/html', 'application/xhtml+xml'],
'txt' => ['text/plain'],
'js' => ['application/javascript', 'application/x-javascript', 'text/javascript'],
'css' => ['text/css'],
'json' => ['application/json', 'application/x-json'],
'jsonld' => ['application/ld+json'],
'xml' => ['text/xml', 'application/xml', 'application/x-xml'],
'rdf' => ['application/rdf+xml'],
'atom' => ['application/atom+xml'],
'rss' => ['application/rss+xml'],
'form' => ['application/x-www-form-urlencoded', 'multipart/form-data'],
'soap' => ['application/soap+xml'],
'problem' => ['application/problem+json'],
'hal' => ['application/hal+json', 'application/hal+xml'],
'jsonapi' => ['application/vnd.api+json'],
'yaml' => ['text/yaml', 'application/x-yaml'],
'wbxml' => ['application/vnd.wap.wbxml'],
'pdf' => ['application/pdf'],
'csv' => ['text/csv'],
];
}
private function setPhpDefaultLocale(string $locale): void
{
// if either the class Locale doesn't exist, or an exception is thrown when
// setting the default locale, the intl module is not installed, and
// the call can be ignored:
try {
if (class_exists(\Locale::class, false)) {
\Locale::setDefault($locale);
}
} catch (\Exception) {
}
}
/**
* Returns the prefix as encoded in the string when the string starts with
* the given prefix, null otherwise.
*/
private function getUrlencodedPrefix(string $string, string $prefix): ?string
{
if ($this->isIisRewrite()) {
// ISS with UrlRewriteModule might report SCRIPT_NAME/PHP_SELF with wrong case
// see https://github.com/php/php-src/issues/11981
if (0 !== stripos(rawurldecode($string), $prefix)) {
return null;
}
} elseif (!str_starts_with(rawurldecode($string), $prefix)) {
return null;
}
$len = \strlen($prefix);
if (preg_match(\sprintf('#^(%%[[:xdigit:]]{2}|.){%d}#', $len), $string, $match)) {
return $match[0];
}
return null;
}
private static function createRequestFromFactory(array $query = [], array $request = [], array $attributes = [], array $cookies = [], array $files = [], array $server = [], $content = null): static
{
if (self::$requestFactory) {
$request = (self::$requestFactory)($query, $request, $attributes, $cookies, $files, $server, $content);
if (!$request instanceof self) {
throw new \LogicException('The Request factory must return an instance of Symfony\Component\HttpFoundation\Request.');
}
return $request;
}
return new static($query, $request, $attributes, $cookies, $files, $server, $content);
}
/**
* Indicates whether this request originated from a trusted proxy.
*
* This can be useful to determine whether or not to trust the
* contents of a proxy-specific header.
*/
public function isFromTrustedProxy(): bool
{
return self::$trustedProxies && IpUtils::checkIp($this->server->get('REMOTE_ADDR', ''), self::$trustedProxies);
}
/**
* This method is rather heavy because it splits and merges headers, and it's called by many other methods such as
* getPort(), isSecure(), getHost(), getClientIps(), getBaseUrl() etc. Thus, we try to cache the results for
* best performance.
*/
private function getTrustedValues(int $type, ?string $ip = null): array
{
$cacheKey = $type."\0".((self::$trustedHeaderSet & $type) ? $this->headers->get(self::TRUSTED_HEADERS[$type]) : '');
$cacheKey .= "\0".$ip."\0".$this->headers->get(self::TRUSTED_HEADERS[self::HEADER_FORWARDED]);
if (isset($this->trustedValuesCache[$cacheKey])) {
return $this->trustedValuesCache[$cacheKey];
}
$clientValues = [];
$forwardedValues = [];
if ((self::$trustedHeaderSet & $type) && $this->headers->has(self::TRUSTED_HEADERS[$type])) {
foreach (explode(',', $this->headers->get(self::TRUSTED_HEADERS[$type])) as $v) {
$clientValues[] = (self::HEADER_X_FORWARDED_PORT === $type ? '0.0.0.0:' : '').trim($v);
}
}
if ((self::$trustedHeaderSet & self::HEADER_FORWARDED) && (isset(self::FORWARDED_PARAMS[$type])) && $this->headers->has(self::TRUSTED_HEADERS[self::HEADER_FORWARDED])) {
$forwarded = $this->headers->get(self::TRUSTED_HEADERS[self::HEADER_FORWARDED]);
$parts = HeaderUtils::split($forwarded, ',;=');
$param = self::FORWARDED_PARAMS[$type];
foreach ($parts as $subParts) {
if (null === $v = HeaderUtils::combine($subParts)[$param] ?? null) {
continue;
}
if (self::HEADER_X_FORWARDED_PORT === $type) {
if (str_ends_with($v, ']') || false === $v = strrchr($v, ':')) {
$v = $this->isSecure() ? ':443' : ':80';
}
$v = '0.0.0.0'.$v;
}
$forwardedValues[] = $v;
}
}
if (null !== $ip) {
$clientValues = $this->normalizeAndFilterClientIps($clientValues, $ip);
$forwardedValues = $this->normalizeAndFilterClientIps($forwardedValues, $ip);
}
if ($forwardedValues === $clientValues || !$clientValues) {
return $this->trustedValuesCache[$cacheKey] = $forwardedValues;
}
if (!$forwardedValues) {
return $this->trustedValuesCache[$cacheKey] = $clientValues;
}
if (!$this->isForwardedValid) {
return $this->trustedValuesCache[$cacheKey] = null !== $ip ? ['0.0.0.0', $ip] : [];
}
$this->isForwardedValid = false;
throw new ConflictingHeadersException(\sprintf('The request has both a trusted "%s" header and a trusted "%s" header, conflicting with each other. You should either configure your proxy to remove one of them, or configure your project to distrust the offending one.', self::TRUSTED_HEADERS[self::HEADER_FORWARDED], self::TRUSTED_HEADERS[$type]));
}
private function normalizeAndFilterClientIps(array $clientIps, string $ip): array
{
if (!$clientIps) {
return [];
}
$clientIps[] = $ip; // Complete the IP chain with the IP the request actually came from
$firstTrustedIp = null;
foreach ($clientIps as $key => $clientIp) {
if (strpos($clientIp, '.')) {
// Strip :port from IPv4 addresses. This is allowed in Forwarded
// and may occur in X-Forwarded-For.
$i = strpos($clientIp, ':');
if ($i) {
$clientIps[$key] = $clientIp = substr($clientIp, 0, $i);
}
} elseif (str_starts_with($clientIp, '[')) {
// Strip brackets and :port from IPv6 addresses.
$i = strpos($clientIp, ']', 1);
$clientIps[$key] = $clientIp = substr($clientIp, 1, $i - 1);
}
if (!filter_var($clientIp, \FILTER_VALIDATE_IP)) {
unset($clientIps[$key]);
continue;
}
if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
unset($clientIps[$key]);
// Fallback to this when the client IP falls into the range of trusted proxies
$firstTrustedIp ??= $clientIp;
}
}
// Now the IP chain contains only untrusted proxies and the client IP
return $clientIps ? array_reverse($clientIps) : [$firstTrustedIp];
}
/**
* Is this IIS with UrlRewriteModule?
*
* This method consumes, caches and removed the IIS_WasUrlRewritten env var,
* so we don't inherit it to sub-requests.
*/
private function isIisRewrite(): bool
{
if (1 === $this->server->getInt('IIS_WasUrlRewritten')) {
$this->isIisRewrite = true;
$this->server->remove('IIS_WasUrlRewritten');
}
return $this->isIisRewrite;
}
/**
* See https://url.spec.whatwg.org/.
*/
private static function isHostValid(string $host): bool
{
if ('[' === $host[0]) {
return ']' === $host[-1] && filter_var(substr($host, 1, -1), \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV6);
}
if (preg_match('/\.[0-9]++\.?$/D', $host)) {
return null !== filter_var($host, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV4 | \FILTER_NULL_ON_FAILURE);
}
// use preg_replace() instead of preg_match() to prevent DoS attacks with long host names
return '' === preg_replace('/[-a-zA-Z0-9_]++\.?/', '', $host);
}
}

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