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<?php declare(strict_types = 1); |
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namespace SlevomatEET\Cryptography; |
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use DOMDocument; |
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use RobRichards\WsePhp\WSSESoap; |
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use RobRichards\XMLSecLibs\XMLSecurityDSig; |
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use RobRichards\XMLSecLibs\XMLSecurityKey; |
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use const OPENSSL_ALGO_SHA256; |
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use function is_file; |
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class CryptographyService |
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{ |
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/** @var string */ |
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private $privateKeyFile; |
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/** @var string */ |
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private $privateKeyPassword; |
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/** @var string */ |
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private $publicKeyFile; |
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/** @var bool */ |
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private $publicKeyVerified; |
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public function __construct(string $privateKeyFile, string $publicKeyFile, string $privateKeyPassword = '') |
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{ |
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if (!is_file($privateKeyFile)) { |
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throw new PrivateKeyFileNotFoundException($privateKeyFile); |
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} |
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if (!is_file($publicKeyFile)) { |
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throw new PublicKeyFileNotFoundException($publicKeyFile); |
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} |
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$this->privateKeyFile = $privateKeyFile; |
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$this->publicKeyFile = $publicKeyFile; |
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$this->privateKeyPassword = $privateKeyPassword; |
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} |
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/** |
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* @param mixed[] $body |
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* @return string |
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*/ |
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public function getPkpCode(array $body): string |
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{ |
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$values = [ |
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$body['dic_popl'], |
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$body['id_provoz'], |
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$body['id_pokl'], |
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$body['porad_cis'], |
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$body['dat_trzby'], |
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$body['celk_trzba'], |
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]; |
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$plaintext = implode('|', $values); |
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$privateKey = (string) file_get_contents($this->privateKeyFile); |
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$privateKeyId = openssl_pkey_get_private($privateKey, $this->privateKeyPassword); |
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if ($privateKeyId === false) { |
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throw new PrivateKeyFileException($this->privateKeyFile); |
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} |
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$ok = openssl_sign($plaintext, $signature, $privateKeyId, OPENSSL_ALGO_SHA256); |
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if (!$ok) { |
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throw new SigningFailedException($values); |
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} |
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openssl_free_key($privateKeyId); |
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return $signature; |
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} |
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public function getBkpCode(string $pkpCode): string |
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{ |
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$bkp = strtoupper(sha1($pkpCode)); |
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return implode('-', str_split($bkp, 8)); |
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} |
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public function addWSESignature(string $request): string |
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{ |
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$publicKey = (string) file_get_contents($this->publicKeyFile); |
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$this->verifyPublicKey($publicKey); |
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$securityKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA256, ['type' => 'private']); |
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$document = new DOMDocument('1.0'); |
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$document->loadXML($request); |
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$wse = new WSSESoap($document); |
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$securityKey->passphrase = $this->privateKeyPassword; |
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$securityKey->loadKey($this->privateKeyFile, true); |
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$wse->addTimestamp(); |
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$wse->signSoapDoc($securityKey, ['algorithm' => XMLSecurityDSig::SHA256]); |
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$binaryToken = $wse->addBinaryToken($publicKey); |
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$wse->attachTokentoSig($binaryToken); |
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return $wse->saveXML(); |
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} |
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private function verifyPublicKey(string $fileContents): void |
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{ |
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if ($this->publicKeyVerified) { |
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return; |
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} |
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$publicKeyResource = openssl_get_publickey($fileContents); |
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if ($publicKeyResource === false) { |
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throw new InvalidPublicKeyException($this->publicKeyFile, (string) openssl_error_string()); |
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} |
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openssl_free_key($publicKeyResource); |
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$this->publicKeyVerified = true; |
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} |
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} |
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slevomat /
eet-client
