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<?php |
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namespace Amazon; |
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use Amazon\Exceptions\InvalidAsinException; |
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/** |
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* Class AsinFetcher |
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* @see https://de.wikipedia.org/wiki/Amazon_Standard_Identification_Number |
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* @package Amazon |
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*/ |
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class AsinParser extends Parser |
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{ |
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const LENGTH_ASIN = 10; |
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/** |
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* @var string |
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*/ |
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private $asin = null; |
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public function __construct($url) |
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{ |
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parent::__construct($url); |
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$urlParameter = parse_url($this->getUrl()); |
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$this->processAsin($urlParameter['host'], $urlParameter['path']); |
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} |
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protected function processAsin($host, $path) |
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{ |
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$path = str_replace('/product', '', $path); |
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$pathParts = explode('/', $path); |
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//ShortUrl |
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if (preg_match('/amzn/', $host)) { |
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$this->setAsin(end($pathParts)); |
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return; |
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} |
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if (false === array_key_exists(2, $pathParts)) { |
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throw new InvalidAsinException(sprintf('Url %s has no ASIN', $this->getUrl())); |
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} |
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foreach ($pathParts as $index => $part) { |
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if (strlen($part) === self::LENGTH_ASIN) { |
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if (array_key_exists($index - 1, $pathParts) && $pathParts[$index - 1] === 'dp') { |
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$this->setAsin($part); |
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return; |
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} |
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} |
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} |
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if (strlen($pathParts[2]) !== self::LENGTH_ASIN) { |
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throw new InvalidAsinException(sprintf('Url %s has no valid ASIN', $this->getUrl())); |
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} |
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//@todo length of ASIN! |
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$this->setAsin($pathParts[2]); |
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return; |
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} |
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/** |
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* @return string |
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*/ |
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public function getAsin() |
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{ |
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return $this->asin; |
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} |
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/** |
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* @param string $asin |
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*/ |
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protected function setAsin($asin) |
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{ |
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$this->asin = $asin; |
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} |
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/** |
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* @return string |
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*/ |
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public function getCleanedUrl() { |
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return sprintf('http://www.amazon.%s/dp/%s/', $this->getTld(), $this->getAsin()); |
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} |
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} |
schmiddim /
amazon-asin-parser
