Rackspace Load Balancer with SSL Termination issue

[fracasula]

Hi,

As mentioned in the title my web server is behind a Rackspace load balancer with SSL termination, it means that the data between the load balancer and the local servers travels unencrypted (but we're still on a secure connection!).
For some reason your isSsl() is not working as expected, it returns false. Therefore the plugin doesn't work. I wrote a little temporary hack that let me use your plugin though. It consists on returning the is_ssl() value directly:

/**
 * Checks if the current page is SSL
 *
 * @param none
 * @return bool
 */
public function isSsl() {
    if (is_ssl()) {
        return true;
    }

    // Some extra checks for Shared SSL
    if ( is_ssl() && strpos($_SERVER['HTTP_HOST'], $this->getHttpsUrl()->getHost()) === false && $_SERVER['SERVER_ADDR'] != $_SERVER['HTTP_HOST'] ) {
        return false;
    } else if ( isset($_SERVER['HTTP_CF_VISITOR']) && strpos($_SERVER['HTTP_CF_VISITOR'], 'https') ) {
        return true;
    } else if ( isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https' ) {
        return true;
    } else if ( $this->getSetting('ssl_host_diff') && !is_ssl() && isset($_SERVER['HTTP_X_FORWARDED_SERVER']) && $this->getHttpsUrl()->getHost() == $_SERVER['HTTP_X_FORWARDED_SERVER'] ) {
        return true;
    } else if ( $this->getSetting('ssl_host_diff') && !is_ssl() && $this->getHttpsUrl()->getHost() == $_SERVER['HTTP_HOST'] && ( $this->getHttpsUrl()->getPort() <= 0 || $_SERVER['SERVER_PORT'] == $this->getHttpsUrl()->getPort() ) && strpos($_SERVER['REQUEST_URI'], $this->getHttpsUrl()->getPath()) !== false ) {
        return true;
    }

    return is_ssl();
}

Basically the native wordpress is_ssl() function works fine for me and it detects if the current session is really SSL or not. Please tell me if you may need further information.

[headstash]

You could achieve this modularly with the code below, that way you can safely update the plugin without losing your modification.

function is_ssl_force_ssl( $force_ssl, $post_id = 0, $url = '' ) {
	return is_ssl();
}

add_filter('force_ssl', 'is_ssl_force_ssl', 10, 3);