000

<?php

declare(strict_types=1);

/*
 * This file is part of the league/commonmark package.
 *
 * (c) Colin O'Dell <colinodell@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace League\CommonMark\Tests\Unit\Extension\ExternalLink;

use League\CommonMark\Environment\Environment;
use League\CommonMark\Extension\CommonMark\CommonMarkCoreExtension;
use League\CommonMark\Extension\ExternalLink\ExternalLinkExtension;
use League\CommonMark\Extension\ExternalLink\ExternalLinkProcessor;
use League\CommonMark\MarkdownConverter;
use PHPUnit\Framework\TestCase;

final class ExternalLinkProcessorTest extends TestCase
{
 private const INPUT = 'My favorite sites are <https://www.colinodell.com> and <https://commonmark.thephpleague.com>';

public function testDefaultConfiguration(): void
 {
 $expected = 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>';

$this->assertEquals($expected, $this->parse(self::INPUT));
    }

public function testCustomConfiguration(): void
 {
 $expected = 'My favorite sites are <a rel="noopener noreferrer" target="_blank" class="external-link" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>';

$config = [
            'external_link' => [
                'internal_hosts'     => ['commonmark.thephpleague.com'],
                'open_in_new_window' => true,
                'html_class'         => 'external-link',
            ],
        ];

$this->assertEquals($expected, $this->parse(self::INPUT, $config));
    }

public function testWithBadUrls(): void
 {
 $input = 'Report [xss](javascript:alert(0);) vulnerabilities by emailing <colinodell@gmail.com>';

$expected = 'Report <a href="javascript:alert(0);">xss</a> vulnerabilities by emailing <a href="mailto:colinodell@gmail.com">colinodell@gmail.com</a>';

$this->assertEquals($expected, $this->parse($input));
    }

/**
 * @param array<string, mixed> $config
 */
 private function parse(string $markdown, array $config = []): string
 {
 $e = new Environment($config);
 $e->addExtension(new CommonMarkCoreExtension());
 $e->addExtension(new ExternalLinkExtension());

$c = new MarkdownConverter($e);

return \rtrim((string) $c->convert($markdown));
    }

/**
     * @dataProvider dataProviderForTestHostMatches
     *
     * @param mixed $compareTo
     */
    public function testHostMatches(string $host, $compareTo, bool $expected): void
    {
        $this->assertEquals($expected, ExternalLinkProcessor::hostMatches($host, $compareTo));
    }

/**
 * @return iterable<array<string|bool>>
 */
 public static function dataProviderForTestHostMatches(): iterable
 {
 // String-to-string comparison must match exactly
 yield ['colinodell.com', 'commonmark.thephpleague.com', false];
 yield ['colinodell.com', 'colinodell.com', true];

// Subdomains won't match unless using regex
        yield ['www.colinodell.com', 'colinodell.com', false];
        yield ['www.colinodell.com', '/colinodell\.com/', true];

// Multiple strings can be checked
        yield ['www.colinodell.com', ['www.colinodell.com', 'commonmark.thephpleague.com'], true];
        yield ['www.colinodell.com', ['google.com', 'aol.com'], false];

// You can even mix-and-match multiple strings with multiple regexes
        yield ['www.colinodell.com', ['/colinodell\.com/', 'aol.com'], true];
    }

/**
     * @dataProvider dataProviderForTestRelOptions
     */
    public function testRelOptions(string $nofollow, string $noopener, string $noreferrer, string $expectedOutput): void
    {
        $config = [
            'external_link' => [
                'nofollow'       => $nofollow,
                'noopener'       => $noopener,
                'noreferrer'     => $noreferrer,
                'internal_hosts' => 'commonmark.thephpleague.com',
            ],
        ];

$this->assertEquals($expectedOutput, $this->parse(self::INPUT, $config));
    }

/**
 * @return iterable<string[]>
 */
 public static function dataProviderForTestRelOptions(): iterable
 {
 // phpcs:disable SlevomatCodingStandard.Arrays.SingleLineArrayWhitespace.SpaceAfterComma
 yield ['', '', '', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', '', 'all', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', '', 'external', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', '', 'internal', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'all', '', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'all', 'all', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'all', 'external', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'all', 'internal', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'external', '', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'external', 'all', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'external', 'external', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'external', 'internal', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'internal', '', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'internal', 'all', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'internal', 'external', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['', 'internal', 'internal', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', '', '', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', '', 'all', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', '', 'external', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', '', 'internal', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'all', '', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'all', 'all', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'all', 'external', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'all', 'internal', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'external', '', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'external', 'all', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'external', 'external', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'external', 'internal', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'internal', '', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'internal', 'all', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'internal', 'external', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['all', 'internal', 'internal', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', '', '', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', '', 'all', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', '', 'external', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', '', 'internal', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'all', '', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'all', 'all', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'all', 'external', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'all', 'internal', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'external', '', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'external', 'all', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'external', 'external', 'My favorite sites are <a rel="nofollow noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'external', 'internal', 'My favorite sites are <a rel="nofollow noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'internal', '', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'internal', 'all', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'internal', 'external', 'My favorite sites are <a rel="nofollow noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['external', 'internal', 'internal', 'My favorite sites are <a rel="nofollow" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', '', '', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', '', 'all', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', '', 'external', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', '', 'internal', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'all', '', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'all', 'all', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'all', 'external', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'all', 'internal', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'external', '', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'external', 'all', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'external', 'external', 'My favorite sites are <a rel="noopener noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'external', 'internal', 'My favorite sites are <a rel="noopener" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'internal', '', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'internal', 'all', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'internal', 'external', 'My favorite sites are <a rel="noreferrer" href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 yield ['internal', 'internal', 'internal', 'My favorite sites are <a href="https://www.colinodell.com">https://www.colinodell.com</a> and <a rel="nofollow noopener noreferrer" href="https://commonmark.thephpleague.com">https://commonmark.thephpleague.com</a>'];
 }
}