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symfony/src/Symfony/Component/HttpFoundation/Request.php
Fabien Potencier 31792b01f1 Merge branch '2.5' into 2.6
* 2.5:
  reformat code as suggested by @fabpot
  Fix typo
  Make `\Request::get` more performant.
  [Form][WebProfiler] Empty form names fix
  [FrameworkBundle] cache:clear command fills *.php.meta files with wrong data
  bumped Symfony version to 2.5.8
  updated VERSION for 2.5.7
  update CONTRIBUTORS for 2.5.7
  updated CHANGELOG for 2.5.7
  bumped Symfony version to 2.3.23
  fixed typo
  updated VERSION for 2.3.22
  update CONTRIBUTORS for 2.3.22
  updated CHANGELOG for 2.3.22

Conflicts:
	src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/form.html.twig
	src/Symfony/Component/HttpKernel/Kernel.php
2014-11-21 17:08:03 +01:00

1902 lines
56 KiB
PHP

<?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\Session\SessionInterface;
/**
* 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>
*
* @api
*/
class Request
{
const HEADER_CLIENT_IP = 'client_ip';
const HEADER_CLIENT_HOST = 'client_host';
const HEADER_CLIENT_PROTO = 'client_proto';
const HEADER_CLIENT_PORT = 'client_port';
const METHOD_HEAD = 'HEAD';
const METHOD_GET = 'GET';
const METHOD_POST = 'POST';
const METHOD_PUT = 'PUT';
const METHOD_PATCH = 'PATCH';
const METHOD_DELETE = 'DELETE';
const METHOD_PURGE = 'PURGE';
const METHOD_OPTIONS = 'OPTIONS';
const METHOD_TRACE = 'TRACE';
const METHOD_CONNECT = 'CONNECT';
protected static $trustedProxies = array();
/**
* @var string[]
*/
protected static $trustedHostPatterns = array();
/**
* @var string[]
*/
protected static $trustedHosts = array();
/**
* Names for headers that can be trusted when
* using trusted proxies.
*
* The default names are non-standard, but widely used
* by popular reverse proxies (like Apache mod_proxy or Amazon EC2).
*/
protected static $trustedHeaders = array(
self::HEADER_CLIENT_IP => 'X_FORWARDED_FOR',
self::HEADER_CLIENT_HOST => 'X_FORWARDED_HOST',
self::HEADER_CLIENT_PROTO => 'X_FORWARDED_PROTO',
self::HEADER_CLIENT_PORT => 'X_FORWARDED_PORT',
);
protected static $httpMethodParameterOverride = false;
/**
* Custom parameters
*
* @var \Symfony\Component\HttpFoundation\ParameterBag
*
* @api
*/
public $attributes;
/**
* Request body parameters ($_POST)
*
* @var \Symfony\Component\HttpFoundation\ParameterBag
*
* @api
*/
public $request;
/**
* Query string parameters ($_GET)
*
* @var \Symfony\Component\HttpFoundation\ParameterBag
*
* @api
*/
public $query;
/**
* Server and execution environment parameters ($_SERVER)
*
* @var \Symfony\Component\HttpFoundation\ServerBag
*
* @api
*/
public $server;
/**
* Uploaded files ($_FILES)
*
* @var \Symfony\Component\HttpFoundation\FileBag
*
* @api
*/
public $files;
/**
* Cookies ($_COOKIE)
*
* @var \Symfony\Component\HttpFoundation\ParameterBag
*
* @api
*/
public $cookies;
/**
* Headers (taken from the $_SERVER)
*
* @var \Symfony\Component\HttpFoundation\HeaderBag
*
* @api
*/
public $headers;
/**
* @var string
*/
protected $content;
/**
* @var array
*/
protected $languages;
/**
* @var array
*/
protected $charsets;
/**
* @var array
*/
protected $encodings;
/**
* @var array
*/
protected $acceptableContentTypes;
/**
* @var string
*/
protected $pathInfo;
/**
* @var string
*/
protected $requestUri;
/**
* @var string
*/
protected $baseUrl;
/**
* @var string
*/
protected $basePath;
/**
* @var string
*/
protected $method;
/**
* @var string
*/
protected $format;
/**
* @var \Symfony\Component\HttpFoundation\Session\SessionInterface
*/
protected $session;
/**
* @var string
*/
protected $locale;
/**
* @var string
*/
protected $defaultLocale = 'en';
/**
* @var array
*/
protected static $formats;
protected static $requestFactory;
/**
* Constructor.
*
* @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 $content The raw body data
*
* @api
*/
public function __construct(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $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 $content The raw body data
*
* @api
*/
public function initialize(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null)
{
$this->request = new ParameterBag($request);
$this->query = new ParameterBag($query);
$this->attributes = new ParameterBag($attributes);
$this->cookies = new ParameterBag($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.
*
* @return Request A new request
*
* @api
*/
public static function createFromGlobals()
{
$request = self::createRequestFromFactory($_GET, $_POST, array(), $_COOKIE, $_FILES, $_SERVER);
if (0 === strpos($request->headers->get('CONTENT_TYPE'), 'application/x-www-form-urlencoded')
&& in_array(strtoupper($request->server->get('REQUEST_METHOD', 'GET')), array('PUT', 'DELETE', 'PATCH'))
) {
parse_str($request->getContent(), $data);
$request->request = new ParameterBag($data);
}
return $request;
}
/**
* 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 $content The raw body data
*
* @return Request A Request instance
*
* @api
*/
public static function create($uri, $method = 'GET', $parameters = array(), $cookies = array(), $files = array(), $server = array(), $content = null)
{
$server = array_replace(array(
'SERVER_NAME' => 'localhost',
'SERVER_PORT' => 80,
'HTTP_HOST' => 'localhost',
'HTTP_USER_AGENT' => 'Symfony/2.X',
'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(),
), $server);
$server['PATH_INFO'] = '';
$server['REQUEST_METHOD'] = strtoupper($method);
$components = parse_url($uri);
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'] = $server['HTTP_HOST'].':'.$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':
if (!isset($server['CONTENT_TYPE'])) {
$server['CONTENT_TYPE'] = 'application/x-www-form-urlencoded';
}
// no break
case 'PATCH':
$request = $parameters;
$query = array();
break;
default:
$request = array();
$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, array(), $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.
*
* @param callable|null $callable A PHP callable
*/
public static function setFactory($callable)
{
self::$requestFactory = $callable;
}
/**
* Clones a request and overrides some of its parameters.
*
* @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
*
* @return Request The duplicated request
*
* @api
*/
public function duplicate(array $query = null, array $request = null, array $attributes = null, array $cookies = null, array $files = null, array $server = null)
{
$dup = clone $this;
if ($query !== null) {
$dup->query = new ParameterBag($query);
}
if ($request !== null) {
$dup->request = new ParameterBag($request);
}
if ($attributes !== null) {
$dup->attributes = new ParameterBag($attributes);
}
if ($cookies !== null) {
$dup->cookies = new ParameterBag($cookies);
}
if ($files !== null) {
$dup->files = new FileBag($files);
}
if ($server !== null) {
$dup->server = new ServerBag($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->get('_format') && $this->get('_format')) {
$dup->attributes->set('_format', $this->get('_format'));
}
if (!$dup->getRequestFormat(null)) {
$dup->setRequestFormat($format = $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;
}
/**
* Returns the request as a string.
*
* @return string The request
*/
public function __toString()
{
return
sprintf('%s %s %s', $this->getMethod(), $this->getRequestUri(), $this->server->get('SERVER_PROTOCOL'))."\r\n".
$this->headers."\r\n".
$this->getContent();
}
/**
* Overrides the PHP global variables according to this request instance.
*
* It overrides $_GET, $_POST, $_REQUEST, $_SERVER, $_COOKIE.
* $_FILES is never overridden, see rfc1867
*
* @api
*/
public function overrideGlobals()
{
$this->server->set('QUERY_STRING', static::normalizeQueryString(http_build_query($this->query->all(), null, '&')));
$_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, array('CONTENT_TYPE', 'CONTENT_LENGTH'))) {
$_SERVER[$key] = implode(', ', $value);
} else {
$_SERVER['HTTP_'.$key] = implode(', ', $value);
}
}
$request = array('g' => $_GET, 'p' => $_POST, 'c' => $_COOKIE);
$requestOrder = ini_get('request_order') ?: ini_get('variables_order');
$requestOrder = preg_replace('#[^cgp]#', '', strtolower($requestOrder)) ?: 'gp';
$_REQUEST = array();
foreach (str_split($requestOrder) as $order) {
$_REQUEST = array_merge($_REQUEST, $request[$order]);
}
}
/**
* 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
*
* @api
*/
public static function setTrustedProxies(array $proxies)
{
self::$trustedProxies = $proxies;
}
/**
* Gets the list of trusted proxies.
*
* @return array An array of trusted proxies.
*/
public static function getTrustedProxies()
{
return self::$trustedProxies;
}
/**
* 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 $hostPatterns)
{
self::$trustedHostPatterns = array_map(function ($hostPattern) {
return sprintf('{%s}i', str_replace('}', '\\}', $hostPattern));
}, $hostPatterns);
// we need to reset trusted hosts on trusted host patterns change
self::$trustedHosts = array();
}
/**
* Gets the list of trusted host patterns.
*
* @return array An array of trusted host patterns.
*/
public static function getTrustedHosts()
{
return self::$trustedHostPatterns;
}
/**
* Sets the name for trusted headers.
*
* The following header keys are supported:
*
* * Request::HEADER_CLIENT_IP: defaults to X-Forwarded-For (see getClientIp())
* * Request::HEADER_CLIENT_HOST: defaults to X-Forwarded-Host (see getClientHost())
* * Request::HEADER_CLIENT_PORT: defaults to X-Forwarded-Port (see getClientPort())
* * Request::HEADER_CLIENT_PROTO: defaults to X-Forwarded-Proto (see getScheme() and isSecure())
*
* Setting an empty value allows to disable the trusted header for the given key.
*
* @param string $key The header key
* @param string $value The header name
*
* @throws \InvalidArgumentException
*/
public static function setTrustedHeaderName($key, $value)
{
if (!array_key_exists($key, self::$trustedHeaders)) {
throw new \InvalidArgumentException(sprintf('Unable to set the trusted header name for key "%s".', $key));
}
self::$trustedHeaders[$key] = $value;
}
/**
* Gets the trusted proxy header name.
*
* @param string $key The header key
*
* @return string The header name
*
* @throws \InvalidArgumentException
*/
public static function getTrustedHeaderName($key)
{
if (!array_key_exists($key, self::$trustedHeaders)) {
throw new \InvalidArgumentException(sprintf('Unable to get the trusted header name for key "%s".', $key));
}
return self::$trustedHeaders[$key];
}
/**
* Normalizes a query string.
*
* It builds a normalized query string, where keys/value pairs are alphabetized,
* have consistent escaping and unneeded delimiters are removed.
*
* @param string $qs Query string
*
* @return string A normalized query string for the Request
*/
public static function normalizeQueryString($qs)
{
if ('' == $qs) {
return '';
}
$parts = array();
$order = array();
foreach (explode('&', $qs) as $param) {
if ('' === $param || '=' === $param[0]) {
// Ignore useless delimiters, e.g. "x=y&".
// Also ignore pairs with empty key, even if there was a value, e.g. "=value", as such nameless values cannot be retrieved anyway.
// PHP also does not include them when building _GET.
continue;
}
$keyValuePair = explode('=', $param, 2);
// GET parameters, that are submitted from a HTML form, encode spaces as "+" by default (as defined in enctype application/x-www-form-urlencoded).
// PHP also converts "+" to spaces when filling the global _GET or when using the function parse_str. This is why we use urldecode and then normalize to
// RFC 3986 with rawurlencode.
$parts[] = isset($keyValuePair[1]) ?
rawurlencode(urldecode($keyValuePair[0])).'='.rawurlencode(urldecode($keyValuePair[1])) :
rawurlencode(urldecode($keyValuePair[0]));
$order[] = urldecode($keyValuePair[0]);
}
array_multisort($order, SORT_ASC, $parts);
return implode('&', $parts);
}
/**
* Enables support for the _method request parameter to determine the intended HTTP method.
*
* Be warned that enabling this feature might lead to CSRF issues in your code.
* Check that you are using CSRF tokens when required.
* If the HTTP method parameter override is enabled, an html-form with method "POST" can be altered
* and used to send a "PUT" or "DELETE" request via the _method request parameter.
* If these methods are not protected against CSRF, this presents a possible vulnerability.
*
* The HTTP method can only be overridden when the real HTTP method is POST.
*/
public static function enableHttpMethodParameterOverride()
{
self::$httpMethodParameterOverride = true;
}
/**
* Checks whether support for the _method request parameter is enabled.
*
* @return bool True when the _method request parameter is enabled, false otherwise
*/
public static function getHttpMethodParameterOverride()
{
return self::$httpMethodParameterOverride;
}
/**
* Gets a "parameter" value.
*
* This method is mainly useful for libraries that want to provide some flexibility.
*
* Order of precedence: GET, PATH, POST
*
* Avoid using this method in controllers:
*
* * slow
* * prefer to get from a "named" source
*
* It is better to explicitly get request parameters from the appropriate
* public property instead (query, attributes, request).
*
* @param string $key the key
* @param mixed $default the default value
* @param bool $deep is parameter deep in multidimensional array
*
* @return mixed
*/
public function get($key, $default = null, $deep = false)
{
if ($this !== $result = $this->query->get($key, $this, $deep)) {
return $result;
}
if ($this !== $result = $this->attributes->get($key, $this, $deep)) {
return $result;
}
if ($this !== $result = $this->request->get($key, $this, $deep)) {
return $result;
}
return $default;
}
/**
* Gets the Session.
*
* @return SessionInterface|null The session
*
* @api
*/
public function getSession()
{
return $this->session;
}
/**
* Whether the request contains a Session which was started in one of the
* previous requests.
*
* @return bool
*
* @api
*/
public function hasPreviousSession()
{
// the check for $this->session avoids malicious users trying to fake a session cookie with proper name
return $this->hasSession() && $this->cookies->has($this->session->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.
*
* @return bool true when the Request contains a Session object, false otherwise
*
* @api
*/
public function hasSession()
{
return null !== $this->session;
}
/**
* Sets the Session.
*
* @param SessionInterface $session The Session
*
* @api
*/
public function setSession(SessionInterface $session)
{
$this->session = $session;
}
/**
* 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.
*
* @return array The client IP addresses
*
* @see getClientIp()
*/
public function getClientIps()
{
$ip = $this->server->get('REMOTE_ADDR');
if (!self::$trustedProxies) {
return array($ip);
}
if (!self::$trustedHeaders[self::HEADER_CLIENT_IP] || !$this->headers->has(self::$trustedHeaders[self::HEADER_CLIENT_IP])) {
return array($ip);
}
$clientIps = array_map('trim', explode(',', $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_IP])));
$clientIps[] = $ip; // Complete the IP chain with the IP the request actually came from
$ip = $clientIps[0]; // Fallback to this when the client IP falls into the range of trusted proxies
// Eliminate all IPs from the forwarded IP chain which are trusted proxies
foreach ($clientIps as $key => $clientIp) {
if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
unset($clientIps[$key]);
}
}
// Now the IP chain contains only untrusted proxies and the client IP
return $clientIps ? array_reverse($clientIps) : array($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 "setTrustedHeaderName()" with
* the "client-ip" key.
*
* @return string The client IP address
*
* @see getClientIps()
* @see http://en.wikipedia.org/wiki/X-Forwarded-For
*
* @api
*/
public function getClientIp()
{
$ipAddresses = $this->getClientIps();
return $ipAddresses[0];
}
/**
* Returns current script name.
*
* @return string
*
* @api
*/
public function getScriptName()
{
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 an empty string
* * 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)
*
* @api
*/
public function getPathInfo()
{
if (null === $this->pathInfo) {
$this->pathInfo = $this->preparePathInfo();
}
return $this->pathInfo;
}
/**
* 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)
*
* @api
*/
public function getBasePath()
{
if (null === $this->basePath) {
$this->basePath = $this->prepareBasePath();
}
return $this->basePath;
}
/**
* 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)
*
* @api
*/
public function getBaseUrl()
{
if (null === $this->baseUrl) {
$this->baseUrl = $this->prepareBaseUrl();
}
return $this->baseUrl;
}
/**
* Gets the request's scheme.
*
* @return string
*
* @api
*/
public function getScheme()
{
return $this->isSecure() ? 'https' : 'http';
}
/**
* Returns the port on which the request is made.
*
* This method can read the client port from the "X-Forwarded-Port" header
* when trusted proxies were set via "setTrustedProxies()".
*
* The "X-Forwarded-Port" header must contain the client port.
*
* If your reverse proxy uses a different header name than "X-Forwarded-Port",
* configure it via "setTrustedHeaderName()" with the "client-port" key.
*
* @return string
*
* @api
*/
public function getPort()
{
if (self::$trustedProxies) {
if (self::$trustedHeaders[self::HEADER_CLIENT_PORT] && $port = $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_PORT])) {
return $port;
}
if (self::$trustedHeaders[self::HEADER_CLIENT_PROTO] && 'https' === $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_PROTO], 'http')) {
return 443;
}
}
if ($host = $this->headers->get('HOST')) {
if ($host[0] === '[') {
$pos = strpos($host, ':', strrpos($host, ']'));
} else {
$pos = strrpos($host, ':');
}
if (false !== $pos) {
return intval(substr($host, $pos + 1));
}
return 'https' === $this->getScheme() ? 443 : 80;
}
return $this->server->get('SERVER_PORT');
}
/**
* Returns the user.
*
* @return string|null
*/
public function getUser()
{
return $this->headers->get('PHP_AUTH_USER');
}
/**
* Returns the password.
*
* @return string|null
*/
public function getPassword()
{
return $this->headers->get('PHP_AUTH_PW');
}
/**
* Gets the user info.
*
* @return string A user name and, optionally, scheme-specific information about how to gain authorization to access the server
*/
public function getUserInfo()
{
$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.
*
* @return string
*
* @api
*/
public function getHttpHost()
{
$scheme = $this->getScheme();
$port = $this->getPort();
if (('http' == $scheme && $port == 80) || ('https' == $scheme && $port == 443)) {
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)
*
* @api
*/
public function getRequestUri()
{
if (null === $this->requestUri) {
$this->requestUri = $this->prepareRequestUri();
}
return $this->requestUri;
}
/**
* 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.
*
* @return string The scheme and HTTP host
*/
public function getSchemeAndHttpHost()
{
return $this->getScheme().'://'.$this->getHttpHost();
}
/**
* Generates a normalized URI (URL) for the Request.
*
* @return string A normalized URI (URL) for the Request
*
* @see getQueryString()
*
* @api
*/
public function getUri()
{
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 $path A path to use instead of the current one
*
* @return string The normalized URI for the path
*
* @api
*/
public function getUriForPath($path)
{
return $this->getSchemeAndHttpHost().$this->getBaseUrl().$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.
*
* @return string|null A normalized query string for the Request
*
* @api
*/
public function getQueryString()
{
$qs = static::normalizeQueryString($this->server->get('QUERY_STRING'));
return '' === $qs ? null : $qs;
}
/**
* Checks whether the request is secure or not.
*
* This method can read the client port from the "X-Forwarded-Proto" header
* when trusted proxies were set via "setTrustedProxies()".
*
* The "X-Forwarded-Proto" header must contain the protocol: "https" or "http".
*
* If your reverse proxy uses a different header name than "X-Forwarded-Proto"
* ("SSL_HTTPS" for instance), configure it via "setTrustedHeaderName()" with
* the "client-proto" key.
*
* @return bool
*
* @api
*/
public function isSecure()
{
if (self::$trustedProxies && self::$trustedHeaders[self::HEADER_CLIENT_PROTO] && $proto = $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_PROTO])) {
return in_array(strtolower(current(explode(',', $proto))), array('https', 'on', 'ssl', '1'));
}
$https = $this->server->get('HTTPS');
return !empty($https) && 'off' !== strtolower($https);
}
/**
* Returns the host name.
*
* This method can read the client port from the "X-Forwarded-Host" header
* when trusted proxies were set via "setTrustedProxies()".
*
* The "X-Forwarded-Host" header must contain the client host name.
*
* If your reverse proxy uses a different header name than "X-Forwarded-Host",
* configure it via "setTrustedHeaderName()" with the "client-host" key.
*
* @return string
*
* @throws \UnexpectedValueException when the host name is invalid
*
* @api
*/
public function getHost()
{
if (self::$trustedProxies && self::$trustedHeaders[self::HEADER_CLIENT_HOST] && $host = $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_HOST])) {
$elements = explode(',', $host);
$host = $elements[count($elements) - 1];
} elseif (!$host = $this->headers->get('HOST')) {
if (!$host = $this->server->get('SERVER_NAME')) {
$host = $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($host)));
// as the host can come from the user (HTTP_HOST and depending on the configuration, SERVER_NAME too can come from the user)
// check that it does not contain forbidden characters (see RFC 952 and RFC 2181)
// use preg_replace() instead of preg_match() to prevent DoS attacks with long host names
if ($host && '' !== preg_replace('/(?:^\[)?[a-zA-Z0-9-:\]_]+\.?/', '', $host)) {
throw new \UnexpectedValueException(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)) {
return $host;
}
foreach (self::$trustedHostPatterns as $pattern) {
if (preg_match($pattern, $host)) {
self::$trustedHosts[] = $host;
return $host;
}
}
throw new \UnexpectedValueException(sprintf('Untrusted Host "%s"', $host));
}
return $host;
}
/**
* Sets the request method.
*
* @param string $method
*
* @api
*/
public function setMethod($method)
{
$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.
*
* @return string The request method
*
* @api
*
* @see getRealMethod
*/
public function getMethod()
{
if (null === $this->method) {
$this->method = strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
if ('POST' === $this->method) {
if ($method = $this->headers->get('X-HTTP-METHOD-OVERRIDE')) {
$this->method = strtoupper($method);
} elseif (self::$httpMethodParameterOverride) {
$this->method = strtoupper($this->request->get('_method', $this->query->get('_method', 'POST')));
}
}
}
return $this->method;
}
/**
* Gets the "real" request method.
*
* @return string The request method
*
* @see getMethod
*/
public function getRealMethod()
{
return strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
}
/**
* Gets the mime type associated with the format.
*
* @param string $format The format
*
* @return string The associated mime type (null if not found)
*
* @api
*/
public function getMimeType($format)
{
if (null === static::$formats) {
static::initializeFormats();
}
return isset(static::$formats[$format]) ? static::$formats[$format][0] : null;
}
/**
* Gets the format associated with the mime type.
*
* @param string $mimeType The associated mime type
*
* @return string|null The format (null if not found)
*
* @api
*/
public function getFormat($mimeType)
{
if (false !== $pos = strpos($mimeType, ';')) {
$mimeType = substr($mimeType, 0, $pos);
}
if (null === static::$formats) {
static::initializeFormats();
}
foreach (static::$formats as $format => $mimeTypes) {
if (in_array($mimeType, (array) $mimeTypes)) {
return $format;
}
}
}
/**
* Associates a format with mime types.
*
* @param string $format The format
* @param string|array $mimeTypes The associated mime types (the preferred one must be the first as it will be used as the content type)
*
* @api
*/
public function setFormat($format, $mimeTypes)
{
if (null === static::$formats) {
static::initializeFormats();
}
static::$formats[$format] = is_array($mimeTypes) ? $mimeTypes : array($mimeTypes);
}
/**
* Gets the request format.
*
* Here is the process to determine the format:
*
* * format defined by the user (with setRequestFormat())
* * _format request parameter
* * $default
*
* @param string $default The default format
*
* @return string The request format
*
* @api
*/
public function getRequestFormat($default = 'html')
{
if (null === $this->format) {
$this->format = $this->get('_format', $default);
}
return $this->format;
}
/**
* Sets the request format.
*
* @param string $format The request format.
*
* @api
*/
public function setRequestFormat($format)
{
$this->format = $format;
}
/**
* Gets the format associated with the request.
*
* @return string|null The format (null if no content type is present)
*
* @api
*/
public function getContentType()
{
return $this->getFormat($this->headers->get('CONTENT_TYPE'));
}
/**
* Sets the default locale.
*
* @param string $locale
*
* @api
*/
public function setDefaultLocale($locale)
{
$this->defaultLocale = $locale;
if (null === $this->locale) {
$this->setPhpDefaultLocale($locale);
}
}
/**
* Get the default locale.
*
* @return string
*/
public function getDefaultLocale()
{
return $this->defaultLocale;
}
/**
* Sets the locale.
*
* @param string $locale
*
* @api
*/
public function setLocale($locale)
{
$this->setPhpDefaultLocale($this->locale = $locale);
}
/**
* Get the locale.
*
* @return string
*/
public function getLocale()
{
return null === $this->locale ? $this->defaultLocale : $this->locale;
}
/**
* Checks if the request method is of specified type.
*
* @param string $method Uppercase request method (GET, POST etc).
*
* @return bool
*/
public function isMethod($method)
{
return $this->getMethod() === strtoupper($method);
}
/**
* Checks whether the method is safe or not.
*
* @return bool
*
* @api
*/
public function isMethodSafe()
{
return in_array($this->getMethod(), array('GET', 'HEAD'));
}
/**
* Returns the request body content.
*
* @param bool $asResource If true, a resource will be returned
*
* @return string|resource The request body content or a resource to read the body stream.
*
* @throws \LogicException
*/
public function getContent($asResource = false)
{
if (false === $this->content || (true === $asResource && null !== $this->content)) {
throw new \LogicException('getContent() can only be called once when using the resource return type.');
}
if (true === $asResource) {
$this->content = false;
return fopen('php://input', 'rb');
}
if (null === $this->content) {
$this->content = file_get_contents('php://input');
}
return $this->content;
}
/**
* Gets the Etags.
*
* @return array The entity tags
*/
public function getETags()
{
return preg_split('/\s*,\s*/', $this->headers->get('if_none_match'), null, PREG_SPLIT_NO_EMPTY);
}
/**
* @return bool
*/
public function isNoCache()
{
return $this->headers->hasCacheControlDirective('no-cache') || 'no-cache' == $this->headers->get('Pragma');
}
/**
* Returns the preferred language.
*
* @param array $locales An array of ordered available locales
*
* @return string|null The preferred locale
*
* @api
*/
public function getPreferredLanguage(array $locales = null)
{
$preferredLanguages = $this->getLanguages();
if (empty($locales)) {
return isset($preferredLanguages[0]) ? $preferredLanguages[0] : null;
}
if (!$preferredLanguages) {
return $locales[0];
}
$extendedPreferredLanguages = array();
foreach ($preferredLanguages as $language) {
$extendedPreferredLanguages[] = $language;
if (false !== $position = strpos($language, '_')) {
$superLanguage = substr($language, 0, $position);
if (!in_array($superLanguage, $preferredLanguages)) {
$extendedPreferredLanguages[] = $superLanguage;
}
}
}
$preferredLanguages = array_values(array_intersect($extendedPreferredLanguages, $locales));
return isset($preferredLanguages[0]) ? $preferredLanguages[0] : $locales[0];
}
/**
* Gets a list of languages acceptable by the client browser.
*
* @return array Languages ordered in the user browser preferences
*
* @api
*/
public function getLanguages()
{
if (null !== $this->languages) {
return $this->languages;
}
$languages = AcceptHeader::fromString($this->headers->get('Accept-Language'))->all();
$this->languages = array();
foreach (array_keys($languages) as $lang) {
if (strstr($lang, '-')) {
$codes = explode('-', $lang);
if ($codes[0] == '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
if (count($codes) > 1) {
$lang = $codes[1];
}
} else {
for ($i = 0, $max = count($codes); $i < $max; $i++) {
if ($i == 0) {
$lang = strtolower($codes[0]);
} else {
$lang .= '_'.strtoupper($codes[$i]);
}
}
}
}
$this->languages[] = $lang;
}
return $this->languages;
}
/**
* Gets a list of charsets acceptable by the client browser.
*
* @return array List of charsets in preferable order
*
* @api
*/
public function getCharsets()
{
if (null !== $this->charsets) {
return $this->charsets;
}
return $this->charsets = array_keys(AcceptHeader::fromString($this->headers->get('Accept-Charset'))->all());
}
/**
* Gets a list of encodings acceptable by the client browser.
*
* @return array List of encodings in preferable order
*/
public function getEncodings()
{
if (null !== $this->encodings) {
return $this->encodings;
}
return $this->encodings = array_keys(AcceptHeader::fromString($this->headers->get('Accept-Encoding'))->all());
}
/**
* Gets a list of content types acceptable by the client browser
*
* @return array List of content types in preferable order
*
* @api
*/
public function getAcceptableContentTypes()
{
if (null !== $this->acceptableContentTypes) {
return $this->acceptableContentTypes;
}
return $this->acceptableContentTypes = array_keys(AcceptHeader::fromString($this->headers->get('Accept'))->all());
}
/**
* Returns true if the request is a XMLHttpRequest.
*
* It works if your JavaScript library sets an X-Requested-With HTTP header.
* It is known to work with common JavaScript frameworks:
* @link http://en.wikipedia.org/wiki/List_of_Ajax_frameworks#JavaScript
*
* @return bool true if the request is an XMLHttpRequest, false otherwise
*
* @api
*/
public function isXmlHttpRequest()
{
return 'XMLHttpRequest' == $this->headers->get('X-Requested-With');
}
/*
* The following methods are derived from code of the Zend Framework (1.10dev - 2010-01-24)
*
* Code subject to the new BSD license (http://framework.zend.com/license/new-bsd).
*
* Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
*/
protected function prepareRequestUri()
{
$requestUri = '';
if ($this->headers->has('X_ORIGINAL_URL')) {
// IIS with Microsoft Rewrite Module
$requestUri = $this->headers->get('X_ORIGINAL_URL');
$this->headers->remove('X_ORIGINAL_URL');
$this->server->remove('HTTP_X_ORIGINAL_URL');
$this->server->remove('UNENCODED_URL');
$this->server->remove('IIS_WasUrlRewritten');
} elseif ($this->headers->has('X_REWRITE_URL')) {
// IIS with ISAPI_Rewrite
$requestUri = $this->headers->get('X_REWRITE_URL');
$this->headers->remove('X_REWRITE_URL');
} elseif ($this->server->get('IIS_WasUrlRewritten') == '1' && $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');
$this->server->remove('IIS_WasUrlRewritten');
} elseif ($this->server->has('REQUEST_URI')) {
$requestUri = $this->server->get('REQUEST_URI');
// HTTP proxy reqs setup request URI with scheme and host [and port] + the URL path, only use URL path
$schemeAndHttpHost = $this->getSchemeAndHttpHost();
if (strpos($requestUri, $schemeAndHttpHost) === 0) {
$requestUri = substr($requestUri, strlen($schemeAndHttpHost));
}
} elseif ($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.
*
* @return string
*/
protected function prepareBaseUrl()
{
$filename = basename($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 = $this->getRequestUri();
if ($baseUrl && false !== $prefix = $this->getUrlencodedPrefix($requestUri, $baseUrl)) {
// full $baseUrl matches
return $prefix;
}
if ($baseUrl && false !== $prefix = $this->getUrlencodedPrefix($requestUri, dirname($baseUrl))) {
// directory portion of $baseUrl matches
return rtrim($prefix, '/');
}
$truncatedRequestUri = $requestUri;
if (false !== $pos = strpos($requestUri, '?')) {
$truncatedRequestUri = substr($requestUri, 0, $pos);
}
$basename = basename($baseUrl);
if (empty($basename) || !strpos(rawurldecode($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)) && $pos !== 0) {
$baseUrl = substr($requestUri, 0, $pos + strlen($baseUrl));
}
return rtrim($baseUrl, '/');
}
/**
* Prepares the base path.
*
* @return string base path
*/
protected function prepareBasePath()
{
$filename = basename($this->server->get('SCRIPT_FILENAME'));
$baseUrl = $this->getBaseUrl();
if (empty($baseUrl)) {
return '';
}
if (basename($baseUrl) === $filename) {
$basePath = dirname($baseUrl);
} else {
$basePath = $baseUrl;
}
if ('\\' === DIRECTORY_SEPARATOR) {
$basePath = str_replace('\\', '/', $basePath);
}
return rtrim($basePath, '/');
}
/**
* Prepares the path info.
*
* @return string path info
*/
protected function preparePathInfo()
{
$baseUrl = $this->getBaseUrl();
if (null === ($requestUri = $this->getRequestUri())) {
return '/';
}
$pathInfo = '/';
// Remove the query string from REQUEST_URI
if ($pos = strpos($requestUri, '?')) {
$requestUri = substr($requestUri, 0, $pos);
}
if (null !== $baseUrl && false === $pathInfo = substr($requestUri, strlen($baseUrl))) {
// If substr() returns false then PATH_INFO is set to an empty string
return '/';
} elseif (null === $baseUrl) {
return $requestUri;
}
return (string) $pathInfo;
}
/**
* Initializes HTTP request formats.
*/
protected static function initializeFormats()
{
static::$formats = array(
'html' => array('text/html', 'application/xhtml+xml'),
'txt' => array('text/plain'),
'js' => array('application/javascript', 'application/x-javascript', 'text/javascript'),
'css' => array('text/css'),
'json' => array('application/json', 'application/x-json'),
'xml' => array('text/xml', 'application/xml', 'application/x-xml'),
'rdf' => array('application/rdf+xml'),
'atom' => array('application/atom+xml'),
'rss' => array('application/rss+xml'),
'form' => array('application/x-www-form-urlencoded'),
);
}
/**
* Sets the default PHP locale.
*
* @param string $locale
*/
private function setPhpDefaultLocale($locale)
{
// 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', false)) {
\Locale::setDefault($locale);
}
} catch (\Exception $e) {
}
}
/*
* Returns the prefix as encoded in the string when the string starts with
* the given prefix, false otherwise.
*
* @param string $string The urlencoded string
* @param string $prefix The prefix not encoded
*
* @return string|false The prefix as it is encoded in $string, or false
*/
private function getUrlencodedPrefix($string, $prefix)
{
if (0 !== strpos(rawurldecode($string), $prefix)) {
return false;
}
$len = strlen($prefix);
if (preg_match("#^(%[[:xdigit:]]{2}|.){{$len}}#", $string, $match)) {
return $match[0];
}
return false;
}
private static function createRequestFromFactory(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null)
{
if (self::$requestFactory) {
$request = call_user_func(self::$requestFactory, $query, $request, $attributes, $cookies, $files, $server, $content);
if (!$request instanceof Request) {
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);
}
}