<?php

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namespace GuzzleHttp;

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use GuzzleHttp\Exception\InvalidArgumentException;

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use Psr\Http\Message\UriInterface;

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use Symfony\Polyfill\Intl\Idn\Idn;

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final class Utils

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{

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/**

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* Wrapper for the hrtime() or microtime() functions

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* (depending on the PHP version, one of the two is used)

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*

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* @return float|mixed UNIX timestamp

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*

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* @internal

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*/

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public static function currentTime()

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{

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return function_exists('hrtime') ? hrtime(true) / 1e9 : microtime(true);

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}

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/**

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* @param int $options

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*

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* @return UriInterface

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* @throws InvalidArgumentException

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*

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* @internal

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*/

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public static function idnUriConvert(UriInterface $uri, $options = 0)

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{

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if ($uri->getHost()) {

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$asciiHost = self::idnToAsci($uri->getHost(), $options, $info);

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if ($asciiHost === false) {

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$errorBitSet = isset($info['errors']) ? $info['errors'] : 0;

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$errorConstants = array_filter(array_keys(get_defined_constants()), function ($name) {

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return substr($name, 0, 11) === 'IDNA_ERROR_';

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});

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$errors = [];

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foreach ($errorConstants as $errorConstant) {

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if ($errorBitSet & constant($errorConstant)) {

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$errors[] = $errorConstant;

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}

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}

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$errorMessage = 'IDN conversion failed';

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if ($errors) {

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$errorMessage .= ' (errors: ' . implode(', ', $errors) . ')';

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}

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throw new InvalidArgumentException($errorMessage);

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} else {

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if ($uri->getHost() !== $asciiHost) {

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// Replace URI only if the ASCII version is different

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$uri = $uri->withHost($asciiHost);

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}

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}

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}

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return $uri;

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}

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/**

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* @param string $domain

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* @param int $options

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* @param array $info

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*

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* @return string|false

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*/

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private static function idnToAsci($domain, $options, &$info = [])

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{

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if (\preg_match('%^[ -~]+$%', $domain) === 1) {

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return $domain;

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}

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if (\extension_loaded('intl') && defined('INTL_IDNA_VARIANT_UTS46')) {

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return \idn_to_ascii($domain, $options, INTL_IDNA_VARIANT_UTS46, $info);

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}

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/*

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* The Idn class is marked as @internal. Verify that class and method exists.

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*/

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if (method_exists(Idn::class, 'idn_to_ascii')) {

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return Idn::idn_to_ascii($domain, $options, Idn::INTL_IDNA_VARIANT_UTS46, $info);

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}

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throw new \RuntimeException('ext-intl or symfony/polyfill-intl-idn not loaded or too old');

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}

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}

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