Current File : /home2/selectio/www/3-idiots/vendor/laminas/laminas-diactoros/src/Request/Serializer.php
<?php
declare(strict_types=1);
namespace Laminas\Diactoros\Request;
use Laminas\Diactoros\AbstractSerializer;
use Laminas\Diactoros\Exception;
use Laminas\Diactoros\Request;
use Laminas\Diactoros\Stream;
use Laminas\Diactoros\Uri;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\StreamInterface;
use function preg_match;
use function sprintf;
/**
* Serialize (cast to string) or deserialize (cast string to Request) messages.
*
* This class provides functionality for serializing a RequestInterface instance
* to a string, as well as the reverse operation of creating a Request instance
* from a string/stream representing a message.
*/
final class Serializer extends AbstractSerializer
{
/**
* Deserialize a request string to a request instance.
*
* Internally, casts the message to a stream and invokes fromStream().
*
* @throws Exception\SerializationException When errors occur parsing the message.
*/
public static function fromString(string $message): Request
{
$stream = new Stream('php://temp', 'wb+');
$stream->write($message);
return self::fromStream($stream);
}
/**
* Deserialize a request stream to a request instance.
*
* @throws Exception\InvalidArgumentException If the message stream is not readable or seekable.
* @throws Exception\SerializationException If an invalid request line is detected.
*/
public static function fromStream(StreamInterface $stream): Request
{
if (! $stream->isReadable() || ! $stream->isSeekable()) {
throw new Exception\InvalidArgumentException('Message stream must be both readable and seekable');
}
$stream->rewind();
[$method, $requestTarget, $version] = self::getRequestLine($stream);
$uri = self::createUriFromRequestTarget($requestTarget);
[$headers, $body] = self::splitStream($stream);
return (new Request($uri, $method, $body, $headers))
->withProtocolVersion($version)
->withRequestTarget($requestTarget);
}
/**
* Serialize a request message to a string.
*/
public static function toString(RequestInterface $request): string
{
$httpMethod = $request->getMethod();
$headers = self::serializeHeaders($request->getHeaders());
$body = (string) $request->getBody();
$format = '%s %s HTTP/%s%s%s';
if (! empty($headers)) {
$headers = "\r\n" . $headers;
}
if (! empty($body)) {
$headers .= "\r\n\r\n";
}
return sprintf(
$format,
$httpMethod,
$request->getRequestTarget(),
$request->getProtocolVersion(),
$headers,
$body
);
}
/**
* Retrieve the components of the request line.
*
* Retrieves the first line of the stream and parses it, raising an
* exception if it does not follow specifications; if valid, returns a list
* with the method, target, and version, in that order.
*
* @throws Exception\SerializationException
*/
private static function getRequestLine(StreamInterface $stream): array
{
$requestLine = self::getLine($stream);
if (
! preg_match(
'#^(?P<method>[!\#$%&\'*+.^_`|~a-zA-Z0-9-]+) (?P<target>[^\s]+) HTTP/(?P<version>[1-9]\d*\.\d+)$#',
$requestLine,
$matches
)
) {
throw Exception\SerializationException::forInvalidRequestLine();
}
return [$matches['method'], $matches['target'], $matches['version']];
}
/**
* Create and return a Uri instance based on the provided request target.
*
* If the request target is of authority or asterisk form, an empty Uri
* instance is returned; otherwise, the value is used to create and return
* a new Uri instance.
*/
private static function createUriFromRequestTarget(string $requestTarget): Uri
{
if (preg_match('#^https?://#', $requestTarget)) {
return new Uri($requestTarget);
}
if (preg_match('#^(\*|[^/])#', $requestTarget)) {
return new Uri();
}
return new Uri($requestTarget);
}
}
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