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<?php |
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/** |
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* micrometa |
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* |
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* @category Jkphl |
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* @package Jkphl\Micrometa |
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* @subpackage Jkphl\Micrometa\Infrastructure\Parser |
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* @author Joschi Kuphal <[email protected]> / @jkphl |
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* @copyright Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl |
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* @license http://opensource.org/licenses/MIT The MIT License (MIT) |
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*/ |
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/*********************************************************************************** |
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* The MIT License (MIT) |
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* |
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* Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy of |
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* this software and associated documentation files (the "Software"), to deal in |
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* the Software without restriction, including without limitation the rights to |
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of |
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* the Software, and to permit persons to whom the Software is furnished to do so, |
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* subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS |
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR |
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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***********************************************************************************/ |
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namespace Jkphl\Micrometa\Infrastructure\Parser; |
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use Jkphl\Micrometa\Application\Contract\ParsingResultInterface; |
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use Jkphl\Micrometa\Ports\Format; |
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/** |
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* Link rel parser |
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* |
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* @package Jkphl\Micrometa |
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* @subpackage Jkphl\Micrometa\Infrastructure |
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*/ |
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class LinkRel extends AbstractParser |
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{ |
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/** |
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* Format |
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* |
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* @var int |
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*/ |
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const FORMAT = Format::LINK_REL; |
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/** |
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* Parse a DOM document |
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* |
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* @param \DOMDocument $dom DOM Document |
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* @return ParsingResultInterface Micro information items |
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*/ |
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public function parseDom(\DOMDocument $dom) |
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{ |
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$this->logger->info('Running parser: '.(new \ReflectionClass(__CLASS__))->getShortName()); |
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$items = []; |
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$xpath = new \DOMXPath($dom); |
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$xpath->registerNamespace('html', self::HTML_PROFILE_URI); |
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// Run through all <link> elements with a `rel` attribute |
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/** @var \DOMElement $linkRel */ |
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foreach ($xpath->query('//*[local-name(.) = "link" or local-name(.) = "a"][@rel]') as $linkRel) { |
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$item = new \stdClass(); |
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// Collect the item types |
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$item->type = []; |
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foreach (preg_split('/\040+/', $linkRel->getAttribute('rel')) as $rel) { |
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$item->type[] = (object)['name' => $rel, 'profile' => self::HTML_PROFILE_URI]; |
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} |
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// Get the item ID (if any) |
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if ($linkRel->hasAttribute('id')) { |
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$item->id = $linkRel->getAttribute('id'); |
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} |
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// Run through all item attributes |
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$item->properties = []; |
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/** |
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* @var string $attributeName Attribute name |
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* @var \DOMAttr $attribute Attribute |
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*/ |
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foreach ($linkRel->attributes as $attributeName => $attribute) { |
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if (!in_array($attributeName, ['rel', 'id'])) { |
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$profile = $attribute->lookupNamespaceUri($attribute->prefix ?: null); |
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$item->properties[] = (object)[ |
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'name' => $attributeName, |
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'profile' => $profile, |
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'values' => $this->parseAttributeValue($profile, $attributeName, $attribute->value), |
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]; |
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} |
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} |
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$items[] = $item; |
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} |
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return new ParsingResult(self::FORMAT, $items); |
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} |
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/** |
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* Parse an attribute value |
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* |
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* @param string $profile Profile |
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* @param string $attribute Attribute name |
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* @param string $value Attribute value |
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* @return array Attribute values |
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*/ |
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protected function parseAttributeValue($profile, $attribute, $value) |
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{ |
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// If it's a HTML attribute |
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if ($profile == LinkRel::HTML_PROFILE_URI) { |
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switch ($attribute) { |
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// Space delimited lists |
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case 'sizes': |
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return array_filter(preg_split('/\040+/', $value)); |
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// Space or comma delimited lists |
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case 'charset': |
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return array_filter(preg_split('/[,\040]+/', $value)); |
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} |
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} |
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return [$value]; |
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} |
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} |
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jkphl /
micrometa
