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<?php |
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namespace Omnipay\Paysera\Common; |
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use Omnipay\Common\Http\ClientInterface; |
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class Signature |
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{ |
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/** |
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* Endpoint to the public key. |
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* |
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* @var string |
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*/ |
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const ENDPOINT = 'http://www.paysera.com/download/public.key'; |
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/** |
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* Generate the signature. |
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* |
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* @param string $data |
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* @param string $password |
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* @return string |
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*/ |
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public static function generate($data, $password) |
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{ |
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return md5($data.$password); |
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} |
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/** |
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* Determine the whole signature is valid. |
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* |
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* @param array $data |
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* @param string $password |
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* @param \Omnipay\Common\Http\ClientInterface $client |
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* @return bool |
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*/ |
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public static function isValid(array $data, $password, ClientInterface $client) |
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{ |
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return static::isValidSS1($data, $password) && static::isValidSS2($data, $client); |
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} |
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/** |
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* Determine the SS1 is valid. |
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* |
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* @param array $data |
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* @param string $password |
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* @return bool |
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*/ |
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protected static function isValidSS1(array $data, $password) |
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{ |
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return static::generate($data['data'], $password) === $data['ss1']; |
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} |
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/** |
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* Determine the SS2 is valid. |
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* |
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* @param array $data |
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* @param \Omnipay\Common\Http\ClientInterface $client |
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* @return bool |
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*/ |
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protected static function isValidSS2(array $data, ClientInterface $client) |
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{ |
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$response = $client->request('GET', self::ENDPOINT); |
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$publicKey = openssl_get_publickey($response->getBody()); |
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if ($response->getStatusCode() === 200 && $publicKey !== false) { |
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return openssl_verify($data['data'], Encoder::decode($data['ss2']), $publicKey) === 1; |
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} |
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return false; |
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} |
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} |
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semyonchetvertnyh /
omnipay-paysera
