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<?php |
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namespace VatNumberCheck\Utility; |
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use Cake\Core\Configure; |
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use Cake\Http\Exception\InternalErrorException; |
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use VatNumberCheck\Model\Datasource\Soap; |
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/** |
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* VatNumberCheck Utility. |
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* |
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*/ |
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class VatNumberCheck |
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{ |
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/** |
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* SOAP connection |
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* |
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* @var Soap |
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*/ |
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protected $soapDataSource; |
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/** |
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* check VAT SOAP action |
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* |
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* @var string |
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*/ |
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const CHECK_VAT_SOAP_ACTION = 'checkVat'; |
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/** |
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* Service to check vat numbers. |
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* |
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*/ |
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const CHECK_VAT_SERVICE = 'http://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl'; |
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/** |
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* Normalizes a VAT number. |
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* |
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* @param string $vatNumber A VAT number |
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* @return string A (normalized) VAT number |
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*/ |
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public function normalize(string $vatNumber) : string |
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{ |
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return preg_replace('/[^A-Z0-9]/', '', strtoupper($vatNumber)); |
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} |
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/** |
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* Checks a given VAT number. |
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* |
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* @param string $vatNumber A VAT number |
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* @return bool Valid or not |
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* @throws InternalErrorException when it is not possible to check the data |
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*/ |
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public function check(string $prefixedVatNumber) : bool |
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{ |
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$countryCode = substr($prefixedVatNumber, 0, 2); |
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$vatNumber = substr($prefixedVatNumber, 2); |
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$data = compact('countryCode', 'vatNumber'); |
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if (!$this->getSoapDataSource()->connect()) { |
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throw new InternalErrorException('Unable to connect.'); |
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} |
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$result = $this->soapDataSource->query(static::CHECK_VAT_SOAP_ACTION, $data); |
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if (!$result) { |
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throw new InternalErrorException('Unable to check data.'); |
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} |
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return $result->valid; |
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} |
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/** |
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* Returns an initialized Soap data source. |
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* |
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* @return Soap the soap datasource |
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*/ |
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protected function getSoapDataSource(): Soap |
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{ |
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$wsdl = static::CHECK_VAT_SERVICE; |
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if (!isset($this->soapDataSource)) { |
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$this->soapDataSource = new Soap(); |
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$this->soapDataSource->setWsdl($wsdl); |
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$this->soapDataSource->setOptions([ |
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'exceptions' => true |
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]); |
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} |
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return $this->soapDataSource; |
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} |
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} |