function SMimeEncrypter::encrypt

File

vendor/symfony/mime/Crypto/SMimeEncrypter.php, line 44

Class

SMimeEncrypter

@author Sebastiaan Stok <s.stok@rollerscapes.net>

Namespace

Symfony\Component\Mime\Crypto

Code

public function encrypt(Message $message) : Message {
    $bufferFile = tmpfile();
    $outputFile = tmpfile();
    $this->iteratorToFile($message->toIterable(), $bufferFile);
    if (!@openssl_pkcs7_encrypt(stream_get_meta_data($bufferFile)['uri'], stream_get_meta_data($outputFile)['uri'], $this->certs, [], 0, $this->cipher)) {
        throw new RuntimeException(\sprintf('Failed to encrypt S/Mime message. Error: "%s".', openssl_error_string()));
    }
    $mimePart = $this->convertMessageToSMimePart($outputFile, 'application', 'pkcs7-mime');
    $mimePart->getHeaders()
        ->addTextHeader('Content-Transfer-Encoding', 'base64')
        ->addParameterizedHeader('Content-Disposition', 'attachment', [
        'name' => 'smime.p7m',
    ]);
    return new Message($message->getHeaders(), $mimePart);
}