Add WSSE support to PHP's soapclient

wsse.php

<?php

class WsseHeader
{
  const NS_WSSE = 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd';
  const NS_WSSEPSWD = 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText';

  public function build($username, $password)
  {
    $header = sprintf(
      '<wsse:Security xmlns:wsse="%s" SOAP-ENV:mustUnderstand="1">' .
      '<wsse:UsernameToken>' .
      '<wsse:Username>%s</wsse:Username>' .
      '<wsse:Password Type="%s">%s</wsse:Password>' .
      '</wsse:UsernameToken>' .
      '</wsse:Security>',
      self::NS_WSSE, $username, self::NS_WSSEPSWD, $password
    );

    return new SoapHeader(self::NS_WSSE, 'wsse', new SoapVar($header, XSD_ANYXML));
  }
}

class WsseClient extends SoapClient
{
    public function setCredentials($username, $password)
    {
      $wsseHeader = new WsseHeader;
      $header = $wsseHeader->build($username, $password);
      $this->__setSoapHeaders(null);
      $this->__setSoapHeaders($header);
    }
}

// Construct as you would the built-in SoapClient, call setCredentials() when known
// http://www.php.net/manual/en/soapclient.soapclient.php

$soap = new WsseClient($wsdl, $options);
// ... once credentials are known
$soap->setCredentials($user, $pswd);