whm\Smoke\Rules\Xml\Rss\ValidRule

Complexity

Total Complexity

6

Size/Duplication

Total Lines	46
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	5

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	getSchema()	0	4	1
A	doValidation()	0	32	5

<?php

namespace whm\Smoke\Rules\Xml\Rss;

use phm\HttpWebdriverClient\Http\Response\UriAwareResponse;
use Psr\Http\Message\ResponseInterface;
use whm\Smoke\Rules\CheckResult;
use whm\Smoke\Rules\StandardRule;
use whm\Smoke\Rules\ValidationFailedException;

/**
 * This rule checks if a rss feed is valid.
 */
class ValidRule extends StandardRule
{
    const SCHEMA = 'rss2_0.xsd';

    const PUBLIC_SERVICE = "https://validator.w3.org/feed/check.cgi?url=%s";

    protected $contentTypes = array('text/xml', 'application/xml', 'application/rss+xml');

    private function getSchema()
    {
        return __DIR__ . '/' . self::SCHEMA;
    }

    public function doValidation(ResponseInterface $response)
    {
        $body = (string)$response->getBody();

        if (preg_match('/<rss/', $body)) {
            libxml_clear_errors();
            $dom = new \DOMDocument();
            @$dom->loadXML($body);
            $lastError = libxml_get_last_error();

            if ($lastError) {
                throw new ValidationFailedException(
                    'The given xml file is not well formed (last error: ' .
                    str_replace("\n", '', $lastError->message) . ').');
            }

            $valid = @$dom->schemaValidate($this->getSchema());

            if (!$valid) {
                $lastError = libxml_get_last_error();
                $lastErrorMessage = str_replace("\n", '', $lastError->message);

                if ($response instanceof UriAwareResponse) {
                    $toolUrl = sprintf(self::PUBLIC_SERVICE, urlencode((string)$response->getUri()));
                } else {
                    $toolUrl = '';
                }
                return new CheckResult(CheckResult::STATUS_FAILURE, 'The given xml file is not a valid rss file (last error: ' . $lastErrorMessage . ').', null, $toolUrl);
            }
        }
        return new CheckResult(CheckResult::STATUS_SUCCESS, 'The given rss file is valid.');
    }
}