/**
* Constructor.
*
* @param mixed $data Data of the part. Either raw PGP data or a
* OpenPGP_Message object.
* @param array $headers Header array.
*/
public function __construct($data, array $headers = array())
{
if (!$data instanceof OpenPGP_Message) {
Horde_Pgp_Backend_Openpgp::autoload();
$data = OpenPGP_Message::parse($data);
}
$this->message = $data;
$this->headers = $headers;
}
/**
*/
public function __construct($data, array $headers = array())
{
if (!$data instanceof OpenPGP_Message) {
Horde_Pgp_Backend_Openpgp::autoload();
$msg = new OpenPGP_Message();
/* Trailing (CR)LF is not part of signed data. */
$pos = strpos($data, '-----BEGIN PGP SIGNATURE-----');
if ($data[--$pos] === "\r") {
--$pos;
}
$msg[] = new OpenPGP_LiteralDataPacket(self::dashUnescapeText(substr($data, 0, $pos)), array('format' => 'u'));
$msg[] = Horde_Pgp_Element_Signature::create(substr($data, $pos) . "-----END PGP SIGNATURE-----\n")->message[0];
} else {
$msg = $data;
}
parent::__construct($msg, $headers);
}
/**
*/
public function next()
{
$base64 = true;
$class = $end = $end_armor = $ob_class = $start = null;
$headers = array();
$stream = $this->_data;
while (!($eof = $stream->eof())) {
$pos = $stream->pos();
$val = rtrim($stream->getToChar("\n", !is_null($start)));
if (is_null($end_armor) && strpos($val, '-----BEGIN PGP ') === 0 && substr($val, -5) === '-----') {
$armor = substr($val, 15, strpos($val, '-', 15) - 15);
if ($start) {
$stream->seek($pos, false);
break;
}
switch ($armor) {
case 'MESSAGE':
$class = 'Horde_Pgp_Element_Message';
break;
case 'PUBLIC KEY BLOCK':
$class = 'Horde_Pgp_Element_PublicKey';
break;
case 'PRIVATE KEY BLOCK':
$class = 'Horde_Pgp_Element_PrivateKey';
break;
case 'SIGNATURE':
$class = 'Horde_Pgp_Element_Signature';
break;
case 'SIGNED MESSAGE':
$armor = 'SIGNATURE';
$base64 = false;
$class = 'Horde_Pgp_Element_SignedMessage';
break;
default:
/* Unknown: ignore. */
continue 2;
}
$end_armor = '-----END PGP ' . $armor . '-----';
} elseif (!is_null($end_armor)) {
if (is_null($start)) {
if (strlen($val)) {
list($h, $v) = explode(':', $val, 2);
$headers[trim($h)] = trim($v);
} else {
$start = $stream->pos();
}
} elseif ($val === $end_armor) {
$end = $pos;
$ob_class = $class;
break;
}
}
}
if ($eof && (is_null($this->_key) || is_null($start))) {
$this->_current = $this->_key = null;
return;
}
if (is_null($ob_class)) {
$ob_class = 'Horde_Pgp_Element_Text';
}
$pos = $stream->pos();
$data = $stream->getString($start, $end - 1);
$stream->seek($pos, false);
if ($base64) {
/* Get checksum, if it exists. */
if ($pos = strrpos($data, "\n=")) {
$checksum = base64_decode(substr($data, $pos + 2, 4));
$data = base64_decode(substr($data, 0, $pos));
Horde_Pgp_Backend_Openpgp::autoload();
$data_checksum = substr(pack('N', OpenPGP::crc24($data)), 1);
if ($data_checksum !== $checksum) {
// Checksum error!
return $this->next();
}
} else {
$data = base64_decode($data);
}
}
$this->_current = new $ob_class($data, $headers);
$this->_key = is_null($this->_key) ? 0 : $this->_key + 1;
}
/**
* Constructor.
*
* @param OpenPGP_PublicKeyPacket $key Key data.
*/
public function __construct(OpenPGP_PublicKeyPacket $key)
{
Horde_Pgp_Backend_Openpgp::autoload();
$this->_key = $key;
}