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Direktori : /home2/selectio/www/myclassicfit.com-1/vendor/league/uri-interfaces/src/Idna/ |
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<?php /** * League.Uri (https://uri.thephpleague.com) * * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ declare(strict_types=1); namespace League\Uri\Idna; use League\Uri\Exceptions\IdnaConversionFailed; use League\Uri\Exceptions\IdnSupportMissing; use League\Uri\Exceptions\SyntaxError; use function defined; use function function_exists; use function idn_to_ascii; use function idn_to_utf8; use function rawurldecode; use const INTL_IDNA_VARIANT_UTS46; /** * @see https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/uidna_8h.html */ final class Idna { private const REGEXP_IDNA_PATTERN = '/[^\x20-\x7f]/'; private const MAX_DOMAIN_LENGTH = 253; private const MAX_LABEL_LENGTH = 63; /** * General registered name regular expression. * * @see https://tools.ietf.org/html/rfc3986#section-3.2.2 * @see https://regex101.com/r/fptU8V/1 */ private const REGEXP_REGISTERED_NAME = '/ (?(DEFINE) (?<unreserved>[a-z0-9_~\-]) # . is missing as it is used to separate labels (?<sub_delims>[!$&\'()*+,;=]) (?<encoded>%[A-F0-9]{2}) (?<reg_name>(?:(?&unreserved)|(?&sub_delims)|(?&encoded))*) ) ^(?:(?®_name)\.)*(?®_name)\.?$ /ix'; /** * IDNA options. */ public const IDNA_DEFAULT = 0; public const IDNA_ALLOW_UNASSIGNED = 1; public const IDNA_USE_STD3_RULES = 2; public const IDNA_CHECK_BIDI = 4; public const IDNA_CHECK_CONTEXTJ = 8; public const IDNA_NONTRANSITIONAL_TO_ASCII = 0x10; public const IDNA_NONTRANSITIONAL_TO_UNICODE = 0x20; public const IDNA_CHECK_CONTEXTO = 0x40; /** * IDNA errors. */ public const ERROR_NONE = 0; public const ERROR_EMPTY_LABEL = 1; public const ERROR_LABEL_TOO_LONG = 2; public const ERROR_DOMAIN_NAME_TOO_LONG = 4; public const ERROR_LEADING_HYPHEN = 8; public const ERROR_TRAILING_HYPHEN = 0x10; public const ERROR_HYPHEN_3_4 = 0x20; public const ERROR_LEADING_COMBINING_MARK = 0x40; public const ERROR_DISALLOWED = 0x80; public const ERROR_PUNYCODE = 0x100; public const ERROR_LABEL_HAS_DOT = 0x200; public const ERROR_INVALID_ACE_LABEL = 0x400; public const ERROR_BIDI = 0x800; public const ERROR_CONTEXTJ = 0x1000; public const ERROR_CONTEXTO_PUNCTUATION = 0x2000; public const ERROR_CONTEXTO_DIGITS = 0x4000; /** * IDNA default options. */ public const IDNA2008_ASCII = self::IDNA_NONTRANSITIONAL_TO_ASCII | self::IDNA_CHECK_BIDI | self::IDNA_USE_STD3_RULES | self::IDNA_CHECK_CONTEXTJ; public const IDNA2008_UNICODE = self::IDNA_NONTRANSITIONAL_TO_UNICODE | self::IDNA_CHECK_BIDI | self::IDNA_USE_STD3_RULES | self::IDNA_CHECK_CONTEXTJ; /** * @codeCoverageIgnore */ private static function supportsIdna(): void { static $idnSupport; if (null === $idnSupport) { $idnSupport = function_exists('\idn_to_ascii') && defined('\INTL_IDNA_VARIANT_UTS46'); } if (!$idnSupport) { throw new IdnSupportMissing('IDN host can not be processed. Verify that ext/intl is installed for IDN support and that ICU is at least version 4.6.'); } } /** * Converts the input to its IDNA ASCII form. * * This method returns the string converted to IDN ASCII form * * @throws SyntaxError if the string can not be converted to ASCII using IDN UTS46 algorithm */ public static function toAscii(string $domain, int $options): IdnaInfo { $domain = rawurldecode($domain); if (1 === preg_match(self::REGEXP_IDNA_PATTERN, $domain)) { self::supportsIdna(); /* @param-out array{errors: int, isTransitionalDifferent: bool, result: string} $idnaInfo */ idn_to_ascii($domain, $options, INTL_IDNA_VARIANT_UTS46, $idnaInfo); if ([] === $idnaInfo) { return IdnaInfo::fromIntl([ 'result' => strtolower($domain), 'isTransitionalDifferent' => false, 'errors' => self::validateDomainAndLabelLength($domain), ]); } /* @var array{errors: int, isTransitionalDifferent: bool, result: string} $idnaInfo */ return IdnaInfo::fromIntl($idnaInfo); } $error = self::ERROR_NONE; if (1 !== preg_match(self::REGEXP_REGISTERED_NAME, $domain)) { $error |= self::ERROR_DISALLOWED; } return IdnaInfo::fromIntl([ 'result' => strtolower($domain), 'isTransitionalDifferent' => false, 'errors' => self::validateDomainAndLabelLength($domain) | $error, ]); } /** * Converts the input to its IDNA UNICODE form. * * This method returns the string converted to IDN UNICODE form * * @throws SyntaxError if the string can not be converted to UNICODE using IDN UTS46 algorithm */ public static function toUnicode(string $domain, int $options): IdnaInfo { $domain = rawurldecode($domain); if (false === stripos($domain, 'xn--')) { return IdnaInfo::fromIntl(['result' => $domain, 'isTransitionalDifferent' => false, 'errors' => self::ERROR_NONE]); } self::supportsIdna(); /* @param-out array{errors: int, isTransitionalDifferent: bool, result: string} $idnaInfo */ idn_to_utf8($domain, $options, INTL_IDNA_VARIANT_UTS46, $idnaInfo); if ([] === $idnaInfo) { throw IdnaConversionFailed::dueToInvalidHost($domain); } /* @var array{errors: int, isTransitionalDifferent: bool, result: string} $idnaInfo */ return IdnaInfo::fromIntl($idnaInfo); } /** * Adapted from https://github.com/TRowbotham/idna. * * @see https://github.com/TRowbotham/idna/blob/master/src/Idna.php#L236 */ private static function validateDomainAndLabelLength(string $domain): int { $error = self::ERROR_NONE; $labels = explode('.', $domain); $maxDomainSize = self::MAX_DOMAIN_LENGTH; $length = count($labels); // If the last label is empty and it is not the first label, then it is the root label. // Increase the max size by 1, making it 254, to account for the root label's "." // delimiter. This also means we don't need to check the last label's length for being too // long. if ($length > 1 && $labels[$length - 1] === '') { ++$maxDomainSize; array_pop($labels); } if (strlen($domain) > $maxDomainSize) { $error |= self::ERROR_DOMAIN_NAME_TOO_LONG; } foreach ($labels as $label) { if (strlen($label) > self::MAX_LABEL_LENGTH) { $error |= self::ERROR_LABEL_TOO_LONG; break; } } return $error; } }