← All changes | vendor_prefixed/guzzlehttp/psr7/src/Rfc7230.php +70 -0 27.7 → trunk View file →

		@@ -18,5 +18,75 @@
18	18	* @license https://github.com/amphp/http/blob/v1.0.1/LICENSE
19	19	*/
20	20	public const HEADER_REGEX = "(^([^()<>@,;:\\\"/[\\]?={}\x01- ]++):[ \t]*+((?:[ \t]*+[!-~\x80-\xff]++)*+)[ \t]*+\r?\n)m";
21	21	public const HEADER_FOLD_REGEX = "(\r?\n[ \t]++)";
	22	+ /**
	23	+ * @return array{0: string, 1: int|null}|null
	24	+ */
	25	+ public static function parseHostHeader(string $authority) : ?array
	26	+ {
	27	+ if ($authority === '') {
	28	+ return null;
	29	+ }
	30	+ $host = $authority;
	31	+ $port = null;
	32	+ if ($authority[0] === '[') {
	33	+ $closingBracket = \strpos($authority, ']');
	34	+ if ($closingBracket === \false) {
	35	+ return null;
	36	+ }
	37	+ $host = \substr($authority, 0, $closingBracket + 1);
	38	+ $remainder = \substr($authority, $closingBracket + 1);
	39	+ if ($remainder !== '') {
	40	+ if ($remainder[0] !== ':') {
	41	+ return null;
	42	+ }
	43	+ $port = self::parseAuthorityPort(\substr($remainder, 1));
	44	+ if ($port === null) {
	45	+ return null;
	46	+ }
	47	+ }
	48	+ } elseif (\false !== ($colon = \strpos($authority, ':'))) {
	49	+ $host = \substr($authority, 0, $colon);
	50	+ $port = self::parseAuthorityPort(\substr($authority, $colon + 1));
	51	+ if ($port === null) {
	52	+ return null;
	53	+ }
	54	+ }
	55	+ if ($host === '' || !self::isValidHostHeaderHost($host)) {
	56	+ return null;
	57	+ }
	58	+ return [$host, $port];
	59	+ }
	60	+ private static function isValidHostHeaderHost(string $host) : bool
	61	+ {
	62	+ $invalidHost = \preg_match('/[\\x00-\\x20\\x7F\\/\\?#@\\\\]/', $host);
	63	+ if ($invalidHost === \false) {
	64	+ return \false;
	65	+ }
	66	+ if ($invalidHost === 1) {
	67	+ return \false;
	68	+ }
	69	+ if (\strpos($host, '[') !== \false || \strpos($host, ']') !== \false) {
	70	+ if ($host[0] !== '[' || \substr($host, -1) !== ']') {
	71	+ return \false;
	72	+ }
	73	+ $address = \substr($host, 1, -1);
	74	+ return \filter_var($address, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV6) !== \false || \preg_match('/^v[0-9a-f]+\\.[' . \YoastSEO_Vendor\GuzzleHttp\Psr7\Rfc3986::CHAR_UNRESERVED . \YoastSEO_Vendor\GuzzleHttp\Psr7\Rfc3986::CHAR_SUB_DELIMS . ':]+$/iD', $address) === 1;
	75	+ }
	76	+ return \strpos($host, ':') === \false;
	77	+ }
	78	+ private static function parseAuthorityPort(string $port) : ?int
	79	+ {
	80	+ if ($port === '' || !\ctype_digit($port)) {
	81	+ return null;
	82	+ }
	83	+ $normalized = \ltrim($port, '0');
	84	+ if ($normalized === '') {
	85	+ return 0;
	86	+ }
	87	+ if (\strlen($normalized) > 5 || (int) $normalized > 0xffff) {
	88	+ return null;
	89	+ }
	90	+ return (int) $normalized;
	91	+ }
22	92	}