<?php
/*
    haproxy_xmlrpcsyncclient.inc
	Copyright (C) 2009 Scott Ullrich <sullrich@pfsense.com>
    Copyright (C) 2008 Remco Hoef
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:

    1. Redistributions of source code must retain the above copyright notice,
       this list of conditions and the following disclaimer.

    2. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.

    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
    AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.
*/

/* include all configuration functions */
require_once("functions.inc");
require_once("pkg-utils.inc");
require_once("notices.inc");

function xmlrpc_sync_execute($syncinfo) {
	// name that is logged if something fails during syncing
	$sync_logname  = $syncinfo['sync_logname'];
	// configuration data to sync
	$xml           = $syncinfo['data'];
	// include file in which the "function sync_done_execute(){xxx}" must be pressent
	$sync_include  = $syncinfo['sync_include'];
	// executes to apply the changed configuration on the target system
	$sync_function = $syncinfo['sync_done_execute'];
	
	global $config, $g;
	//if(!$password)
		$password = $config['hasync']['password'];
	if(!$password)
		return;

	//if(!$sync_to_ip)
		$sync_to_ip = $config['hasync']['synchronizetoip'];
	if(!$sync_to_ip)
		return;
	
	// Do not allow syncing to self.
	$donotsync = false;
	$localips = get_configured_ip_addresses();
	if (in_array($sync_to_ip, $localips , true))
		$donotsync = true;
	
	if($donotsync) {
		log_error("Disallowing sync loop for HAProxy sync.");
		return;
	}

	$xmlrpc_sync_neighbor = $sync_to_ip;
    if($config['system']['webgui']['protocol'] != "") {
		$synchronizetoip = $config['system']['webgui']['protocol'];
		$synchronizetoip .= "://";
    }
    $port = $config['system']['webgui']['port'];
    /* if port is empty lets rely on the protocol selection */
    if($port == "") {
		if($config['system']['webgui']['protocol'] == "http") 
			$port = "80";
		else 
			$port = "443";
    }
	$synchronizetoip .= $sync_to_ip;

	/* xml will hold the sections to sync */
	//$xml = prepare_xmlrpc_sync_config();


	/* assemble xmlrpc payload */
	$params = array(
		XML_RPC_encode($password),
		XML_RPC_encode($xml)
	);

	/* set a few variables needed for sync code borrowed from filter.inc */
	$url = $synchronizetoip;
	log_error("Beginning {$sync_logname} XMLRPC sync to {$url}:{$port}.");
	$method = 'pfsense.merge_installedpackages_section_xmlrpc';
	$msg = new XML_RPC_Message($method, $params);
	$cli = new XML_RPC_Client('/xmlrpc.php', $url, $port);
	$cli->setCredentials('admin', $password);
	if($g['debug'])
		$cli->setDebug(1);
	/* send our XMLRPC message and timeout after 250 seconds */
	$resp = $cli->send($msg, "250");
	if(!$resp) {
		$error = "A communications error occurred while attempting {$sync_logname} XMLRPC sync with {$url}:{$port}.";
		log_error($error);
		file_notice("sync_settings", $error, "{$sync_logname} Settings Sync", "");
	} elseif($resp->faultCode()) {
		$cli->setDebug(1);
		$resp = $cli->send($msg, "250");
		$error = "An error code was received while attempting {$sync_logname} XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString();
		log_error($error);
		file_notice("sync_settings", $error, "{$sync_logname} Settings Sync", "");
	} else {
		log_error("{$sync_logname} XMLRPC sync successfully completed with {$url}:{$port}.");
	}

	/* tell haproxy to reload our settings on the destionation sync host. */
	$method = 'pfsense.exec_php';
	$execcmd  = "require_once('{$sync_include}');\n";
	$execcmd .= "{$sync_function}();\n";
	
	/* assemble xmlrpc payload */
	$params = array(
		XML_RPC_encode($password),
		XML_RPC_encode($execcmd)
	);

	log_error("HAProxy XMLRPC reload data {$url}:{$port}.");
	$msg = new XML_RPC_Message($method, $params);
	$cli = new XML_RPC_Client('/xmlrpc.php', $url, $port);
	$cli->setCredentials('admin', $password);
	$resp = $cli->send($msg, "250");
	if(!$resp) {
		$error = "A communications error occurred while attempting {$sync_logname} XMLRPC sync with {$url}:{$port} (exec_php).";
		log_error($error);
		file_notice("sync_settings", $error, "{$sync_logname} Settings Reload", "");
	} elseif($resp->faultCode()) {
		$cli->setDebug(1);
		$resp = $cli->send($msg, "250");
		$error = "An error code was received while attempting {$sync_logname} XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString();
		log_error($error);
		file_notice("sync_settings", $error, "{$sync_logname} Settings Sync", "");
	} else {
		log_error("{$sync_logname} XMLRPC reload data success with {$url}:{$port} (exec_php).");
	}
}

?>