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<?php |
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declare(strict_types = 1); |
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namespace DL\SitemapBundle\Service; |
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use DL\SitemapBundle\Definition\SitemapResource; |
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use DL\SitemapBundle\Enum\ChangeFrequencyEnum; |
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use DL\SitemapBundle\Exception\SitemapException; |
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/** |
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* Handles the validation of sitemap resources. |
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* |
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* @package DL\SitemapBundle\Service |
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* @author Petre Pătrașc <[email protected]> |
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*/ |
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class SitemapResourceValidator |
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{ |
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/** |
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* Validate a sitemap resource. |
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* |
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* @param SitemapResource $resource |
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* |
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* @return bool |
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* @throws SitemapException |
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*/ |
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public function validate(SitemapResource $resource): bool |
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{ |
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if ('' === trim($resource->getTitle())) { |
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throw new SitemapException('No title provided for the sitemap resource'); |
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} |
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if ('' === trim($resource->getLocation())) { |
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throw new SitemapException('No location provided for the sitemap resource'); |
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} |
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if ('' === trim($resource->getChangeFrequency())) { |
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throw new SitemapException('No change frequency provided for the sitemap resource'); |
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} |
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if (-1 == $resource->getPriority()) { |
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throw new SitemapException('No priority provided for the sitemap resource'); |
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} |
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if ($resource->getPriority() < 0.0 || $resource->getPriority() > 1.0) { |
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throw new SitemapException("Sitemap resource priority should be between 0.0 and 1.0." . |
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" {$resource->getPriority()} provided."); |
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} |
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if (false === in_array($resource->getChangeFrequency(), $this->getValidChangeFrequencies())) { |
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throw new SitemapException("Invalid sitemap change frequency provided: {$resource->getChangeFrequency()}"); |
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} |
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if (false === filter_var($resource->getLocation(), FILTER_VALIDATE_URL)) { |
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throw new SitemapException("Invalid absolute location: {$resource->getLocation()}"); |
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} |
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return true; |
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} |
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/** |
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* Retrieve a list of the valid change frequencies. |
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* |
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* @return array |
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*/ |
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private function getValidChangeFrequencies(): array |
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{ |
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return [ |
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ChangeFrequencyEnum::ALWAYS, |
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ChangeFrequencyEnum::HOURLY, |
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ChangeFrequencyEnum::DAILY, |
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ChangeFrequencyEnum::WEEKLY, |
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ChangeFrequencyEnum::MONTHLY, |
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ChangeFrequencyEnum::YEARLY, |
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ChangeFrequencyEnum::NEVER, |
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]; |
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} |
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} |
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dlapps /
sitemap-bundle
