/**
* Add the signature to the given Headers
*
* @param Swift_Mime_HeaderSet $headers
* @return Swift_Signers_DKIMSigner
*/
public function addSignature(Swift_Mime_HeaderSet $headers)
{
// Prepare the DKIM-Signature
$params = array('v' => '1', 'a' => $this->_hashAlgorithm, 'bh' => base64_encode($this->_bodyHash), 'd' => $this->_domainName, 'h' => implode(': ', $this->_signedHeaders), 'i' => $this->_signerIdentity, 's' => $this->_selector);
if ($this->_bodyCanon != 'simple') {
$params['c'] = $this->_headerCanon . '/' . $this->_bodyCanon;
} elseif ($this->_headerCanon != 'simple') {
$params['c'] = $this->_headerCanon;
}
if ($this->_showLen) {
$params['l'] = $this->_bodyLen;
}
if ($this->_signatureTimestamp === true) {
$params['t'] = time();
if ($this->_signatureExpiration !== false) {
$params['x'] = $params['t'] + $this->_signatureExpiration;
}
} else {
if ($this->_signatureTimestamp !== false) {
$params['t'] = $this->_signatureTimestamp;
}
if ($this->_signatureExpiration !== false) {
$params['x'] = $this->_signatureExpiration;
}
}
if ($this->_debugHeaders) {
$params['z'] = implode('|', $this->_debugHeadersData);
}
$string = '';
foreach ($params as $k => $v) {
$string .= $k . '=' . $v . '; ';
}
$string = trim($string);
$headers->addTextHeader('DKIM-Signature', $string);
// Add the last DKIM-Signature
$tmp = $headers->getAll('DKIM-Signature');
$this->_dkimHeader = end($tmp);
$this->_addHeader(trim($this->_dkimHeader->toString()) . "\r\n b=", true);
$this->_endOfHeaders();
if ($this->_debugHeaders) {
$headers->addTextHeader('X-DebugHash', base64_encode($this->_headerHash));
}
$this->_dkimHeader->setValue($string . " b=" . trim(chunk_split(base64_encode($this->_getEncryptedHash()), 73, " ")));
return $this;
}
/**
* Create a new ParameterizedHeader with $name, $value and $params.
* @param string $name
* @param string $value
* @param array $params
* @return Swift_Mime_ParameterizedHeader
*/
public function createParameterizedHeader($name, $value = null, $params = array())
{
$header = new Swift_Mime_Headers_ParameterizedHeader($name, $this->_encoder, strtolower($name) == 'content-disposition' ? $this->_paramEncoder : null);
if (isset($value)) {
$header->setFieldBodyModel($value);
}
foreach ($params as $k => $v) {
$header->setParameter($k, $v);
}
$this->_setHeaderCharset($header);
return $header;
}
private function _getHeader($name, $encoder, $paramEncoder)
{
$header = new Swift_Mime_Headers_ParameterizedHeader($name, $encoder, $paramEncoder, new Swift_Mime_Grammar());
$header->setCharset($this->_charset);
return $header;
}
