/**
* Validates the HTTP request method.
*
* @param string $method HTTP request method
*
* @throws \InvalidArgumentException For invalid method
*/
public static final function validateMethod($method)
{
if (!Message::isValidToken($value)) {
throw new InvalidArgumentException(sprintf('Invalid method "%s" provided; must be a HTTP token.', $value));
}
}
/**
* @param \Psr\Http\Message\StreamInterface|string $body
* @param int $statusCode
* @param \Elegant\Http\Message\HeaderBag|array $headers
*/
public function __construct($body = '', $statusCode = 200, $headers = [])
{
parent::__construct($body, $headers);
$this->setStatusCode($statusCode);
}
/**
* Determines headers from global variables.
*
* @throws \BadRequestException For invalid header name or value
*
* @return array
*/
protected static final function determineHeadersFromGlobals()
{
$headers = [];
$specialHeaders = ['CONTENT_MD5' => 'Content-MD5'];
$standardlizeHeaderName = function ($name) {
return ucwords(strtolower(strtr($name, '_', '-')), '-');
};
foreach ($_SERVER as $name => $value) {
if (isset($specialHeaders[$name])) {
$name = $specialHeaders[$name];
} elseif (Str::startsWith($name, 'HTTP_')) {
$name = $standardlizeHeaderName(substr($name, 5));
} elseif (Str::startsWith($name, 'REDIRECT_')) {
$name = $standardlizeHeaderName(substr($name, 9));
} elseif (Str::startsWith($name, 'CONTENT_')) {
$name = $standardlizeHeaderName($name);
} else {
continue;
}
if (!Message::isValidToken($name)) {
throw new BadRequestException(sprintf('Invalid header name "%s" detected; must be valid HTTP token.', $name));
}
if (!Message::isValidHeaderValue($value)) {
throw new BadRequestException(sprintf('Invalid header value "%s" detected; must be valid HTTP header value.', $value));
}
$headers[$name] = $value;
}
return $headers;
}
