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314 lines (276 loc) · 9.02 KB
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<?php
/**
* This file is part of the Stack package.
*
* (c) Andrzej Kostrzewa <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace Stack\Http;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UriInterface;
/**
* Class Request
* @package Stack\Http
*/
class Request extends AbstractMessage implements RequestInterface
{
/**
* @var string
*/
protected $method = '';
/**
* @var
*/
private $requestTarget;
/**
* @var \Stack\Http\Uri
*/
private $uri;
/**
* Request constructor.
* @param null $uri
* @param null $method
* @param string $body
* @param array $headers
*/
public function __construct($uri = null, $method = null, $body = 'php://temp', array $headers = [])
{
if (!$uri instanceof UriInterface && !is_string($uri) && $uri !== null) {
throw new \InvalidArgumentException(
'Invalid URI provided; must be null, a string, or a Psr\Http\Message\UriInterface instance'
);
}
self::assertValidMethod($method);
if (!is_string($body) && !is_resource($body) && !$body instanceof StreamInterface) {
throw new \InvalidArgumentException(
'Body must be a string stream resource identifier, '
. 'an actual stream resource, '
. 'or a Psr\Http\Message\StreamInterface implementation'
);
}
if (is_string($uri)) {
$uri = new Uri($uri);
}
$this->method = $method ?: '';
$this->uri = $uri ?: new Uri();
$this->stream = ($body instanceof StreamInterface) ? $body : new Stream($body, 'wb+');
$this->headers = new Header($this->uri, $headers);
}
/**
* @param $name
*/
protected static function assertValidMethod($name)
{
if ($name === null) {
return;
}
if (!is_string($name)) {
throw new \InvalidArgumentException(sprintf(
'Unsupported HTTP method; must be a string, received %s',
(is_object($name) ? get_class($name) : gettype($name))
));
}
$method = strtoupper($name);
if (!isset(HttpSecurity::$validMethods[$method])) {
throw new \InvalidArgumentException(sprintf(
'Unsupported HTTP method "%s" provided',
$method
));
}
}
/**
* @return array|mixed
*/
public function getHeaders()
{
$headers = $this->headers->getHeaders();
if (!$this->hasHeader('host')
&& ($this->uri && $this->uri->getHost())
) {
$headers['Host'] = [$this->getHostFromUri()];
}
return $headers;
}
/**
* @return string
*/
private function getHostFromUri()
{
$host = $this->uri->getHost();
$host .= $this->uri->getPort() ? ':' . $this->uri->getPort() : '';
return $host;
}
/**
* @param string $name
* @return array|mixed
*/
public function getHeader($name)
{
$host = $this->getHostFromUri();
return $this->headers->getHeader($name, $host);
}
/**
* Retrieves the message's request target.
*
* Retrieves the message's request-target either as it will appear (for
* clients), as it appeared at request (for servers), or as it was
* specified for the instance (see withRequestTarget()).
*
* In most cases, this will be the origin-form of the composed URI,
* unless a value was provided to the concrete implementation (see
* withRequestTarget() below).
*
* If no URI is available, and no request-target has been specifically
* provided, this method MUST return the string "/".
*
* @return string
*/
public function getRequestTarget()
{
if ($this->requestTarget !== null) {
return $this->requestTarget;
}
if (!$this->uri) {
return "/";
}
$requestTarget = $this->uri->getPath();
if ($this->uri->getQuery()) {
$requestTarget .= "?" . $this->uri->getQuery();
}
if (empty($requestTarget)) {
$requestTarget = "/";
}
return $requestTarget;
}
/**
* Return an instance with the specific request-target.
*
* If the request needs a non-origin-form request-target — e.g., for
* specifying an absolute-form, authority-form, or asterisk-form —
* this method may be used to create an instance with the specified
* request-target, verbatim.
*
* This method MUST be implemented in such a way as to retain the
* immutability of the message, and MUST return an instance that has the
* changed request target.
*
* @link http://tools.ietf.org/html/rfc7230#section-2.7 (for the various
* request-target forms allowed in request messages)
* @param mixed $requestTarget
* @return self
*/
public function withRequestTarget($requestTarget)
{
if (preg_match('#\s#', $requestTarget)) {
throw new \InvalidArgumentException(
'Invalid request target provided; cannot contain whitespace'
);
}
$self = clone $this;
$self->requestTarget = $requestTarget;
return $self;
}
/**
* Retrieves the HTTP method of the request.
*
* @return string Returns the request method.
*/
public function getMethod()
{
return $this->method;
}
/**
* Return an instance with the provided HTTP method.
*
* While HTTP method names are typically all uppercase characters, HTTP
* method names are case-sensitive and thus implementations SHOULD NOT
* modify the given string.
*
* This method MUST be implemented in such a way as to retain the
* immutability of the message, and MUST return an instance that has the
* changed request method.
*
* @param string $method Case-sensitive method.
* @return self
* @throws \InvalidArgumentException for invalid HTTP methods.
*/
public function withMethod($method)
{
self::assertValidMethod($method);
$self = clone $this;
$self->method = $method;
return $self;
}
/**
* Retrieves the URI instance.
*
* This method MUST return a UriInterface instance.
*
* @link http://tools.ietf.org/html/rfc3986#section-4.3
* @return UriInterface Returns a UriInterface instance
* representing the URI of the request.
*/
public function getUri()
{
return $this->uri;
}
/**
* Returns an instance with the provided URI.
*
* This method MUST update the Host header of the returned request by
* default if the URI contains a host component. If the URI does not
* contain a host component, any pre-existing Host header MUST be carried
* over to the returned request.
*
* You can opt-in to preserving the original state of the Host header by
* setting `$preserveHost` to `true`. When `$preserveHost` is set to
* `true`, this method interacts with the Host header in the following ways:
*
* - If the the Host header is missing or empty, and the new URI contains
* a host component, this method MUST update the Host header in the returned
* request.
* - If the Host header is missing or empty, and the new URI does not contain a
* host component, this method MUST NOT update the Host header in the returned
* request.
* - If a Host header is present and non-empty, this method MUST NOT update
* the Host header in the returned request.
*
* This method MUST be implemented in such a way as to retain the
* immutability of the message, and MUST return an instance that has the
* new UriInterface instance.
*
* @link http://tools.ietf.org/html/rfc3986#section-4.3
* @param UriInterface $uri New request URI to use.
* @param bool $preserveHost Preserve the original state of the Host header.
* @return self
*/
public function withUri(UriInterface $uri, $preserveHost = false)
{
$self = clone $this;
$self->uri = $uri;
if ($preserveHost && $this->hasHeader('Host')) {
return $self;
}
if (!$uri->getHost()) {
return $self;
}
$host = $uri->getHost();
if ($uri->getPort()) {
$host .= ":" . $uri->getPort();
}
$self->headers->setHeaderName('host', 'Host');
$headers = $self->headers->getHeaders();
foreach (array_keys($headers) as $header) {
if (strtolower($header) === 'host') {
unset($headers[$header]);
$self->headers->setHeaders($headers);
}
}
$self->headers->setHost($host);
return $self;
}
}