<?php
    define('BASE','/usr/local/Somnode/htdocs/');

	error_reporting(E_ALL ^ E_DEPRECATED);
	ini_set('display_errors', 'On');
	define('IS_WINDOWS', substr(PHP_OS, 0, 3)=='WIN');

	switch(@$_SERVER['argv']['1']){
		case 'enableAutoSSL';
			enableAutoSSL();
		break;
		case 'disableAutoSSL';
			disableAutoSSL();
		break;
		case 'resetAutoSSL';
			disableAutoSSL();
			enableAutoSSL();
		break;

		default:
			exit("no parameter specified\r\n");
			break;
	}


	class my_node extends SimpleXMLElement
	{
		public function prependChild($name, $value = false)
		{
			$dom = dom_import_simplexml($this);

			$new = $dom->insertBefore(
				$dom->ownerDocument->createElement($name, $value),
				$dom->firstChild
			);

			return simplexml_import_dom($new, get_class($this));
		}
	}

	function enableAutoSSL(){

		# Make backup of original file
		copy('/usr/local/WowzaStreamingEngine/conf/VHost.xml', '/usr/local/WowzaStreamingEngine/conf/VHost.'.time().'.xml');

		$xml = simplexml_load_file('/usr/local/WowzaStreamingEngine/conf/VHost.xml', 'my_node');

		# Look for AutoSSL in description or port 1936
		# Locate Default Streaming
		$defaultStreaming = null;
		foreach($xml->VHost->HostPortList->HostPort as $hostPort){

			# Check Ports
			$ports = explode(",", $hostPort->Port);
			if ( in_array('1936', $ports) ){
				output("Port 1936 already in use by a VHost.");
				output("Cannot continue AutoSSL configuration until port 1936 is available.");
				exit;
			}

			# Locate Default Streaming
			if ($hostPort->Name == 'Default Streaming' || in_array('1935',$ports) ){
				$defaultStreaming = simplexml_load_string($hostPort->saveXML(),'my_node');
			}
		}

		if ( !$defaultStreaming ){
			output("Unable to locate default streaming VHost");
			output("Cannot continue AutoSSL configuration.");
		}

		$defaultStreaming->Name = 'Somnode Secure Streaming';
		$defaultStreaming->IpAddress = '*';
		$defaultStreaming->Port = 1936;
		$defaultStreaming->addChild('SSLConfig');
		$defaultStreaming->SSLConfig->addChild('KeyStorePath','/usr/local/WowzaStreamingEngine/conf/ssl/SomnodeAutoSSL.jks');
		$defaultStreaming->SSLConfig->addChild('KeyStorePassword','secret');
		$defaultStreaming->SSLConfig->addChild('DomainToKeyStoreMapPath','/usr/local/WowzaStreamingEngine/conf/ssl/jksmap.txt');

		xml_adopt($xml->VHost->HostPortList,$defaultStreaming);
		saveXML($xml, '/usr/local/WowzaStreamingEngine/conf/VHost.xml');

		# Update Plugin Config (Post Install Run)
		chdir('/usr/local/Somnode/htdocs/');
		require_once('database.php');
		if ( isset($db_prefix) ){
            require_once('/usr/local/Somnode/htdocs/system/plugins/handler.php');
            $handler = new \PluginHandler('WowzaMedia', 'server');
	        $config = $handler->config_load(1);
            $config['SecureStreamPort'] = '1936';
            $handler->config_save($config);
        }
		echo "Complete";
	}

	function disableAutoSSL(){
		# Make backup of original file
		copy('/usr/local/WowzaStreamingEngine/conf/VHost.xml', '/usr/local/WowzaStreamingEngine/conf/VHost.'.time().'.xml');

		$xml = simplexml_load_file('/usr/local/WowzaStreamingEngine/conf/VHost.xml', 'my_node');


		for($i=0;$i < count($xml->VHost->HostPortList->HostPort); $i++){
			$hostPort = $xml->VHost->HostPortList->HostPort[$i];
			if ($hostPort->SSLConfig->KeyStorePath == '/usr/local/WowzaStreamingEngine/conf/ssl/SomnodeAutoSSL.jks'){
				unset($xml->VHost->HostPortList->HostPort[$i]);
			}
		}

		saveXML($xml, '/usr/local/WowzaStreamingEngine/conf/VHost.xml');

		# Update Plugin Config
		chdir('/usr/local/Somnode/htdocs/');
		require_once('database.php');
		if ( isset($db_prefix) ){
            require_once('/usr/local/Somnode/htdocs/system/plugins/handler.php');
            $handler = new \PluginHandler('WowzaMedia', 'server');
	        $config = $handler->config_load(1);
            $config['SecureStreamPort'] = '';
            $handler->config_save($config);
        }

		echo "Complete";
	}

	function saveXML(SimpleXMLElement $simpleXML, $file)
	{
		$dom = new DOMDocument("1.0");
		$dom->preserveWhiteSpace = false;
		$dom->formatOutput = true;
		$dom->loadXML($simpleXML->asXML());
		$dom->save($file);
	}

	function output($message){
		echo $message . "\r\n";
	}
	function xml_adopt($root, $new, $namespace = null) {
		// first add the new node
		// NOTE: addChild does NOT escape "&" ampersands in (string)$new !!!
		//  replace them or use htmlspecialchars(). see addchild docs comments.
		$node = $root->addChild($new->getName(), (string) $new, $namespace);
		// add any attributes for the new node
		foreach($new->attributes() as $attr => $value) {
			$node->addAttribute($attr, $value);
		}
		// get all namespaces, include a blank one
		$namespaces = array_merge(array(null), $new->getNameSpaces(true));
		// add any child nodes, including optional namespace
		foreach($namespaces as $space) {
			foreach ($new->children($space) as $child) {
				xml_adopt($node, $child, $space);
			}
		}
	}

	function get_Somnode_domain(){
		return trim(file_get_contents('/usr/local/Somnode/Somnode.domain'));
	}