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<?php |
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declare(strict_types=1); |
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namespace PhpCfdi\Finkok\Helpers; |
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use DateTimeImmutable; |
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use DOMDocument; |
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use LogicException; |
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use PhpCfdi\Credentials\Credential; |
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use RobRichards\XMLSecLibs\XMLSecurityDSig; |
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use RobRichards\XMLSecLibs\XMLSecurityKey; |
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class DocumentSigner |
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{ |
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/** @var string */ |
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private $rfc; |
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/** @var DateTimeImmutable */ |
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private $date; |
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/** @var string */ |
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private $content; |
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public function __construct(string $rfc, DateTimeImmutable $date, string $content) |
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{ |
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$this->rfc = $rfc; |
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$this->date = $date; |
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$this->content = $content; |
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} |
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public function rfc(): string |
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{ |
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return $this->rfc; |
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} |
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public function date(): DateTimeImmutable |
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{ |
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return $this->date; |
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} |
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public function content(): string |
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{ |
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return $this->content; |
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} |
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public function sign(string $certificateFile, string $privateKeyFile, string $passPhrase): string |
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{ |
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$credential = Credential::openFiles($certificateFile, $privateKeyFile, $passPhrase); |
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return $this->signUsingCredential($credential); |
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} |
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public function signUsingCredential(Credential $credential): string |
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{ |
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$document = $this->createDocumentToSign(); |
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$this->signDocumentUsingCredential($document, $credential); |
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return strval($document->saveXML()); |
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} |
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public function createDocumentToSign(): DOMDocument |
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{ |
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$document = new DOMDocument('1.0', 'UTF-8'); |
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$root = $document->createElement('documento'); |
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$document->appendChild($root); |
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$contract = $document->createElement('contrato', $this->content()); |
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$contract->setAttribute('rfc', $this->rfc()); |
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$contract->setAttribute('fecha', $this->date()->format('Y-m-d\TH:i:s')); |
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$root->appendChild($contract); |
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return $document; |
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} |
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public function signDocumentUsingCredential(DOMDocument $document, Credential $credential): void |
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{ |
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$root = $document->documentElement; |
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if (null === $root) { |
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throw new LogicException('The DOM Document does not contains a root element'); |
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} |
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$objDSig = new XMLSecurityDSig(); |
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$objDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N); |
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$objDSig->addReference( |
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$document, |
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XMLSecurityDSig::SHA1, |
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['http://www.w3.org/2000/09/xmldsig#enveloped-signature'], |
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['force_uri' => true] |
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); |
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$objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, ['type' => 'private']); |
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$objKey->passphrase = $credential->privateKey()->passPhrase(); // set passphrase before loading key |
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$objKey->loadKey($credential->privateKey()->pem(), false, false); |
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$objDSig->sign($objKey); |
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$objDSig->add509Cert($credential->certificate()->pem(), true, false); |
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$objDSig->appendSignature($root); |
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} |
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} |
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phpcfdi /
finkok
