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<?php |
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namespace EasyPay; |
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use EasyPay\Log as Log; |
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use EasyPay\Exception; |
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use EasyPay\Key as Key; |
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use EasyPay\OpenSSL as OpenSSL; |
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class Sign |
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{ |
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public function __construct() {} |
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/** |
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* Verify signature of request |
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* |
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* @param string $request_str |
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* @param string $sign |
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* @param array $options |
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*/ |
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public function verify($request_str, $sign, $options) |
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{ |
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if (isset($options['UseSign']) && ($options['UseSign'] === true)) |
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{ |
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$this->check_verify_sign_result( |
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$result = (new OpenSSL())->verify( |
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str_replace($sign, '', $request_str), |
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pack("H*", $sign), |
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(new OpenSSL())->get_pub_key($this->get_pub_key($options)) |
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) |
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); |
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} |
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} |
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/** |
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* load file with easysoft public key |
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* |
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* @param array $options |
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* @throws Exception\Runtime |
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* @return string |
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*/ |
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protected function get_pub_key($options) |
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{ |
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if ( ! isset($options['EasySoftPKey'])) |
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{ |
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throw new Exception\Runtime('The parameter EasySoftPKey is not set!', -94); |
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} |
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return (new Key())->get($options['EasySoftPKey'], 'public'); |
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} |
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/** |
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* check result of openssl verify signature |
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* |
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* @param integer $result |
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* @throws Exception\Sign |
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*/ |
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protected function check_verify_sign_result($result) |
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{ |
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if ($result == -1) |
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{ |
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throw new Exception\Sign('Error verify signature of request!', -96); |
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} |
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elseif ($result == 0) |
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{ |
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throw new Exception\Sign('Signature of request is incorrect!', -95); |
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} |
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} |
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/** |
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* Generate signature of response |
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* |
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* @param string $request_str |
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* @param array $options |
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* @return string |
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*/ |
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public function generate($request_str, $options) |
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{ |
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try |
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{ |
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$sign = ''; |
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$this->check_generate_sign_result( |
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$result = (new OpenSSL())->sign( |
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$request_str, |
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$sign, |
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(new OpenSSL())->get_priv_key($this->get_priv_key($options)) |
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) |
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); |
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return strtoupper(bin2hex($sign)); |
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} |
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catch (\Exception $e) |
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{ |
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return null; |
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} |
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} |
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/** |
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* load file with provider private key |
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* |
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* @param array $options |
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* @throws Exception\Runtime |
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* @return string |
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*/ |
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protected function get_priv_key($options) |
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{ |
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if ( ! isset($options['ProviderPKey'])) |
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{ |
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throw new \EasyPay\Exception\Runtime('The parameter ProviderPKey is not set!', -94); |
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} |
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return (new Key())->get($options['ProviderPKey'], 'private'); |
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} |
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/** |
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* check result of openssl sign |
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* |
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* @param bool $result |
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* @throws Exception\Sign |
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*/ |
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protected function check_generate_sign_result($result) |
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{ |
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if ($result === FALSE) |
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{ |
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throw new \EasyPay\Exception\Sign('Can not generate signature!', -96); |
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} |
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} |
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} |
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dshovchko /
php_EasyPay
