public function setHeaders(Swift_Mime_HeaderSet $headers)
{
$bodyLen = $this->_bodyLen;
if (is_bool($bodyLen)) {
$bodyLen = -1;
}
$hash = $this->_hashAlgorithm == 'rsa-sha1' ? OpenDKIMSign::ALG_RSASHA1 : OpenDKIMSign::ALG_RSASHA256;
$bodyCanon = $this->_bodyCanon == 'simple' ? OpenDKIMSign::CANON_SIMPLE : OpenDKIMSign::CANON_RELAXED;
$headerCanon = $this->_headerCanon == 'simple' ? OpenDKIMSign::CANON_SIMPLE : OpenDKIMSign::CANON_RELAXED;
$this->_dkimHandler = new OpenDKIMSign($this->_privateKey, $this->_selector, $this->_domainName, $headerCanon, $bodyCanon, $hash, $bodyLen);
// Hardcode signature Margin for now
$this->_dkimHandler->setMargin(78);
if (!is_numeric($this->_signatureTimestamp)) {
OpenDKIM::setOption(OpenDKIM::OPTS_FIXEDTIME, time());
} else {
if (!OpenDKIM::setOption(OpenDKIM::OPTS_FIXEDTIME, $this->_signatureTimestamp)) {
throw new Swift_SwiftException('Unable to force signature timestamp [' . openssl_error_string() . ']');
}
}
if (isset($this->_signerIdentity)) {
$this->_dkimHandler->setSigner($this->_signerIdentity);
}
$listHeaders = $headers->listAll();
foreach ($listHeaders as $hName) {
// Check if we need to ignore Header
if (!isset($this->_ignoredHeaders[strtolower($hName)])) {
$tmp = $headers->getAll($hName);
if ($headers->has($hName)) {
foreach ($tmp as $header) {
if ($header->getFieldBody() != '') {
$htosign = $header->toString();
$this->_dkimHandler->header($htosign);
$this->_signedHeaders[] = $header->getFieldName();
}
}
}
}
}
return $this;
}
/**
* 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;
}
/**
* Add the signature to the given Headers.
*
* @param Swift_Mime_HeaderSet $headers
*
* @return Swift_Signers_DomainKeySigner
*/
public function addSignature(Swift_Mime_HeaderSet $headers)
{
// Prepare the DomainKey-Signature Header
$params = array('a' => $this->_hashAlgorithm, 'b' => chunk_split(base64_encode($this->_getEncryptedHash()), 73, ' '), 'c' => $this->_canon, 'd' => $this->_domainName, 'h' => implode(': ', $this->_signedHeaders), 'q' => 'dns', 's' => $this->_selector);
$string = '';
foreach ($params as $k => $v) {
$string .= $k . '=' . $v . '; ';
}
$string = trim($string);
$headers->addTextHeader('DomainKey-Signature', $string);
return $this;
}
/**
* Filter header set against a whitelist of regular expressions.
*
* @param Swift_Mime_HeaderSet $headerSet
* @param string $type
*/
private function _filterHeaderSet(Swift_Mime_HeaderSet $headerSet, $type)
{
foreach ($headerSet->getAll($type) as $headers) {
$headers->setNameAddresses($this->_filterNameAddresses($headers->getNameAddresses()));
}
}
