/
Request.php
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/
Request.php
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<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Nette\Http;
use Nette;
/**
* HttpRequest provides access scheme for request sent via HTTP.
*
* @property-read UrlScript $url
* @property-read array $query
* @property-read array $post
* @property-read array $files
* @property-read array $cookies
* @property-read string $method
* @property-read array $headers
* @property-read UrlImmutable|null $referer
* @property-read bool $secured
* @property-read bool $ajax
* @property-read string|null $remoteAddress
* @property-read string|null $remoteHost
* @property-read string|null $rawBody
*/
class Request implements IRequest
{
use Nette\SmartObject;
/** @var string */
private $method;
/** @var UrlScript */
private $url;
/** @var array */
private $post;
/** @var array */
private $files;
/** @var array */
private $cookies;
/** @var array */
private $headers;
/** @var string|null */
private $remoteAddress;
/** @var string|null */
private $remoteHost;
/** @var callable|null */
private $rawBodyCallback;
public function __construct(
UrlScript $url,
?array $post = null,
?array $files = null,
?array $cookies = null,
?array $headers = null,
?string $method = null,
?string $remoteAddress = null,
?string $remoteHost = null,
?callable $rawBodyCallback = null
) {
$this->url = $url;
$this->post = (array) $post;
$this->files = (array) $files;
$this->cookies = (array) $cookies;
$this->headers = array_change_key_case((array) $headers, CASE_LOWER);
$this->method = $method ?: 'GET';
$this->remoteAddress = $remoteAddress;
$this->remoteHost = $remoteHost;
$this->rawBodyCallback = $rawBodyCallback;
}
/**
* Returns a clone with a different URL.
* @return static
*/
public function withUrl(UrlScript $url)
{
$dolly = clone $this;
$dolly->url = $url;
return $dolly;
}
/**
* Returns the URL of the request.
*/
public function getUrl(): UrlScript
{
return $this->url;
}
/********************* query, post, files & cookies ****************d*g**/
/**
* Returns variable provided to the script via URL query ($_GET).
* If no key is passed, returns the entire array.
* @return mixed
*/
public function getQuery(?string $key = null)
{
if (func_num_args() === 0) {
return $this->url->getQueryParameters();
} elseif (func_num_args() > 1) {
trigger_error(__METHOD__ . '() parameter $default is deprecated, use operator ??', E_USER_DEPRECATED);
}
return $this->url->getQueryParameter($key);
}
/**
* Returns variable provided to the script via POST method ($_POST).
* If no key is passed, returns the entire array.
* @return mixed
*/
public function getPost(?string $key = null)
{
if (func_num_args() === 0) {
return $this->post;
} elseif (func_num_args() > 1) {
trigger_error(__METHOD__ . '() parameter $default is deprecated, use operator ??', E_USER_DEPRECATED);
}
return $this->post[$key] ?? null;
}
/**
* Returns uploaded file.
* @param string|string[] $key
* @return ?FileUpload
*/
public function getFile($key)
{
$res = Nette\Utils\Arrays::get($this->files, $key, null);
return $res instanceof FileUpload ? $res : null;
}
/**
* Returns tree of upload files in a normalized structure, with each leaf an instance of Nette\Http\FileUpload.
*/
public function getFiles(): array
{
return $this->files;
}
/**
* Returns a cookie or `null` if it does not exist.
* @return mixed
*/
public function getCookie(string $key)
{
if (func_num_args() > 1) {
trigger_error(__METHOD__ . '() parameter $default is deprecated, use operator ??', E_USER_DEPRECATED);
}
return $this->cookies[$key] ?? null;
}
/**
* Returns all cookies.
*/
public function getCookies(): array
{
return $this->cookies;
}
/********************* method & headers ****************d*g**/
/**
* Returns the HTTP method with which the request was made (GET, POST, HEAD, PUT, ...).
*/
public function getMethod(): string
{
return $this->method;
}
/**
* Checks the HTTP method with which the request was made. The parameter is case-insensitive.
*/
public function isMethod(string $method): bool
{
return strcasecmp($this->method, $method) === 0;
}
/**
* Returns an HTTP header or `null` if it does not exist. The parameter is case-insensitive.
*/
public function getHeader(string $header): ?string
{
if (func_num_args() > 1) {
trigger_error(__METHOD__ . '() parameter $default is deprecated, use operator ??', E_USER_DEPRECATED);
}
$header = strtolower($header);
return $this->headers[$header] ?? null;
}
/**
* Returns all HTTP headers as associative array.
*/
public function getHeaders(): array
{
return $this->headers;
}
/**
* What URL did the user come from? Beware, it is not reliable at all.
*/
public function getReferer(): ?UrlImmutable
{
return isset($this->headers['referer'])
? new UrlImmutable($this->headers['referer'])
: null;
}
/**
* What origin did the user come from? It contains scheme, hostname and port.
*/
public function getOrigin(): ?UrlImmutable
{
$header = $this->headers['origin'] ?? 'null';
try {
return $header === 'null'
? null
: new UrlImmutable($header);
} catch (Nette\InvalidArgumentException $e) {
return null;
}
}
/**
* Is the request sent via secure channel (https)?
*/
public function isSecured(): bool
{
return $this->url->getScheme() === 'https';
}
/**
* Is the request coming from the same site and is initiated by clicking on a link?
*/
public function isSameSite(): bool
{
return isset($this->cookies[Helpers::STRICT_COOKIE_NAME]);
}
/**
* Is it an AJAX request?
*/
public function isAjax(): bool
{
return $this->getHeader('X-Requested-With') === 'XMLHttpRequest';
}
/**
* Returns the IP address of the remote client.
*/
public function getRemoteAddress(): ?string
{
return $this->remoteAddress;
}
/**
* Returns the host of the remote client.
*/
public function getRemoteHost(): ?string
{
if ($this->remoteHost === null && $this->remoteAddress !== null) {
$this->remoteHost = gethostbyaddr($this->remoteAddress);
}
return $this->remoteHost;
}
/**
* Returns raw content of HTTP request body.
*/
public function getRawBody(): ?string
{
return $this->rawBodyCallback ? ($this->rawBodyCallback)() : null;
}
/**
* Returns the most preferred language by browser. Uses the `Accept-Language` header. If no match is reached, it returns `null`.
* @param string[] $langs supported languages
*/
public function detectLanguage(array $langs): ?string
{
$header = $this->getHeader('Accept-Language');
if (!$header) {
return null;
}
$s = strtolower($header); // case insensitive
$s = strtr($s, '_', '-'); // cs_CZ means cs-CZ
rsort($langs); // first more specific
preg_match_all('#(' . implode('|', $langs) . ')(?:-[^\s,;=]+)?\s*(?:;\s*q=([0-9.]+))?#', $s, $matches);
if (!$matches[0]) {
return null;
}
$max = 0;
$lang = null;
foreach ($matches[1] as $key => $value) {
$q = $matches[2][$key] === '' ? 1.0 : (float) $matches[2][$key];
if ($q > $max) {
$max = $q;
$lang = $value;
}
}
return $lang;
}
}