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<?php |
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/** |
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* HAPI (HomeAway Payment Island) Tokenizer. |
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*/ |
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namespace Gueststream\HomeAway; |
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use Gueststream\HomeAway\Exception\TokenizerException; |
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use GuzzleHttp\Client as GuzzleClient; |
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use GuzzleHttp\Exception\ClientException as GuzzleClientException; |
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class Tokenizer |
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{ |
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/** |
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* Token type for all tokenizations requests is always CC. |
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*/ |
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const TOKEN_TYPE = "CC"; |
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/** |
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* Tokenization Server URL |
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*/ |
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const SERVER_URL = "https://sensei.homeaway.com/tokens"; |
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/** |
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* HAPI Secure API Key. |
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* |
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* @var string |
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*/ |
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private $apiKey; |
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/** |
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* HAPI Client ID. |
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* |
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* @var string |
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*/ |
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private $clientId; |
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/** |
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* @var GuzzleClient |
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*/ |
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private $guzzleClient; |
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/** |
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* Unix Timestamp for generating the digest hash. |
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* |
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* @var string |
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*/ |
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private $timestamp; |
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/** |
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* HAPI constructor. |
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* |
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* @param $apiKey |
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* @param $clientId |
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*/ |
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public function __construct($apiKey, $clientId, GuzzleClient $guzzleClient = null) |
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{ |
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$this->setApiKey($apiKey); |
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$this->setClientId($clientId); |
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$this->guzzleClient = !is_null($guzzleClient) ? $guzzleClient : new GuzzleClient(); |
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} |
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/** |
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* @param mixed $apiKey |
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*/ |
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private function setApiKey($apiKey) |
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{ |
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$this->apiKey = $apiKey; |
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} |
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/** |
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* @param mixed $clientId |
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*/ |
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private function setClientId($clientId) |
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{ |
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$this->clientId = $clientId; |
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} |
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/** |
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* @param $creditCardNumber |
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* @throws TokenizerException |
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*/ |
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public function tokenize($creditCardNumber) |
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{ |
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try { |
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$tokenData = $this->performTokenizationRequest($creditCardNumber); |
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} catch (GuzzleClientException $exception) { |
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/** |
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* Convert Guzzle Exceptions to Tokenizer Exception. |
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* It seems every actual error ties to a non-200 response which |
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* causes Guzzle to throw an Exception with the JSON body content as |
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* the message anyway. |
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*/ |
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throw new TokenizerException('something went wrong'); |
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} |
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return $tokenData->{'@id'}; |
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} |
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private function performTokenizationRequest($creditCardNumber) |
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{ |
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$httpResponse = $this->guzzleClient->request( |
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'POST', |
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self::SERVER_URL, |
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[ |
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'query' => [ |
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'time' => $this->getTimestamp(), |
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'digest' => $this->generateDigest(), |
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'clientId' => $this->clientId |
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], |
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'json' => [ |
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'tokenType' => 'CC', |
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'value' => $creditCardNumber |
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], |
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'allow_redirects' => false, |
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'headers' => [ |
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'User-Agent' => 'Gueststream/1.0', |
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'Accept' => 'application/json' |
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] |
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] |
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); |
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return json_decode($httpResponse->getBody()); |
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} |
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/** |
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* @return string |
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*/ |
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private function generateDigest() |
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{ |
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return hash("sha256", $this->getTimestamp() . $this->apiKey); |
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} |
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/** |
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* @return string |
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*/ |
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6 |
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private function getTimestamp() |
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{ |
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if (!$this->timestamp) { |
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$epoch_milliseconds = time() * 1000; |
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$this->timestamp = number_format($epoch_milliseconds, 0, '.', ''); |
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} |
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return $this->timestamp; |
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} |
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} |
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Gueststream-Inc /
hapi
