t1gor/Robots.txt-Parser-Class

<?php declare(strict_types=1);

namespace t1gor\RobotsTxtParser\Parser\DirectiveProcessors;

use t1gor\RobotsTxtParser\Directive;
use t1gor\RobotsTxtParser\Parser\HostName;

class HostProcessor extends AbstractDirectiveProcessor implements DirectiveProcessorInterface {

    public function getDirectiveName(): string {
        return Directive::HOST;
    }

    public function process(string $line, array & $root, string & $currentUserAgent = '*', string $prevLine = '') {
        $parts = explode(':', $line);
        array_shift($parts);
        $trimmed     = array_map('trim', $parts);
        $entry       = implode(':', $trimmed);

        if (HostName::isValid($entry)) {
            $root[$currentUserAgent][Directive::HOST] = $entry;
            return;
        }

        $this->log(strtr('{directive} with value {faulty} dropped for {useragent} as invalid{ipAddress}', [
            '{directive}' => Directive::HOST,
            '{faulty}'    => $entry,
            '{useragent}' => $currentUserAgent,
            '{ipAddress}' => HostName::isIpAddress($entry) ? ' (IP address is not a valid hostname)' : '',
        ]));
    }
}