53 lines
1.1 KiB
PHP
53 lines
1.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace GuzzleHttp\Psr7;
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use Psr\Http\Message\UriInterface;
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/**
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* Provides methods to determine if a modified URL should be considered cross-origin.
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*
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* @author Graham Campbell
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*/
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final class UriComparator
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{
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/**
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* Determines if a modified URL should be considered cross-origin with
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* respect to an original URL.
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*/
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public static function isCrossOrigin(UriInterface $original, UriInterface $modified): bool
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{
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if (\strcasecmp($original->getHost(), $modified->getHost()) !== 0) {
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return true;
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}
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if ($original->getScheme() !== $modified->getScheme()) {
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return true;
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}
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if (self::computePort($original) !== self::computePort($modified)) {
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return true;
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}
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return false;
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}
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private static function computePort(UriInterface $uri): int
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{
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$port = $uri->getPort();
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if (null !== $port) {
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return $port;
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}
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return 'https' === $uri->getScheme() ? 443 : 80;
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}
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private function __construct()
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{
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// cannot be instantiated
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}
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}
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