Sockets PHP + websockets

[MarceloSB 0]

Boa tarde colegas, 

 

Se alguém puder me dar uma luz, estou com uma dificuldade em relação ao sockets com php, já estou a dias tentando fazer mas ta difícil, rs. 

A aplicação basicamente tem uma pagina web que vai receber informações quando for incluído algum dado novo no banco de dados através de outra aplicação. 

Fiz da seguinte forma  PAINEL + SERVER PHPSOCKETs + ADMIN

Criei um arquivo em php (server.php) que vai ser o servidor de sockets. 
Eu execute ele pelo shell do linux: php -q server.php 192.168.15.3 8959

require_once("/var/www/html/controller/cfg-system.php");

$host = $argv[1]; //host
$port = $argv[2]; //port
$null = NULL; //null var

//
//set_time_limit(0);
//ob_implicit_flush();

//Create TCP/IP sream socket
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
//reuseable port
socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);

//bind socket to specified host
socket_bind($socket, 0, $port);

//listen to port
socket_listen($socket);

//create & add listning socket to the list
$clients = array($socket);

say( ascii_banner() );
say("PHP WebSocket Server running....");
say("Server Started : ".date('Y-m-d H:i:s'));
say("Listening on   : ".$host." port ".$port);
say("Master socket  : ".$socket."\n");
say(".... awaiting connections ...");
//start endless loop, so that our script doesn't stop
while (true) {
	//manage multipal connections
	$changed = $clients;
	//returns the socket resources in $changed array
	socket_select($changed, $null, $null, 0, 10);
	
	//check for new socket
	if (in_array($socket, $changed)) {
		$socket_new = socket_accept($socket); //accpet new socket
		if ($socket_new) say("$socket: Connected ...");
		$clients[] = $socket_new; //add socket to client array
		
		$header = socket_read($socket_new, 1024); //read data sent by the socket
		perform_handshaking($header, $socket_new, $host, $port); //perform websocket handshake
		
		socket_getpeername($socket_new, $ip); //get ip address of connected socket
		$response = mask(json_encode(array('type'=>'system', 'message'=>$ip.':'.$port.' connected'))); //prepare json data
		if ($response) send_message($response); //notify all users about new connection
		
		//make room for new socket
		$found_socket = array_search($socket, $changed);
		unset($changed[$found_socket]);
	}
	
	//loop through all connected sockets
	foreach ($changed as $changed_socket) {	
		
		//check for any incomming data
		while(socket_recv($changed_socket, $buf, 1024, 0) >= 1)
		{
			$received_text = unmask($buf); //unmask data
			$received_text = str_replace("\\" ,"",$received_text);
			$response_text = mask($received_text);
			
			if($response_text)send_message($response_text); //send data
			//}
			break 2; //exist this loop
		}
		
		$buf = @socket_read($changed_socket, 1024, PHP_NORMAL_READ);
		if ($buf === false) { // check disconnected client
			// remove client for $clients array
			$found_socket = array_search($changed_socket, $clients);
			socket_getpeername($changed_socket, $ip);
			unset($clients[$found_socket]);
			
			//notify all users about disconnected connection
			$response = mask(json_encode(array('type'=>'system', 'message'=>$ip.':'.$port.' disconnected')));
			if($response)send_message($response);
		}
	}
}
// close the listening socket
socket_close($socket);

function send_message($msg)
{
	global $clients;
	foreach($clients as $changed_socket)
	{
		if($msg) @socket_write($changed_socket,$msg,strlen($msg));
		//say("> ".$msg." (".strlen($msg). " bytes) \n");
	}
	return true;
}


//Unmask incoming framed message
function unmask($text) {
	$length = ord($text[1]) & 127;
	if($length == 126) {
		$masks = substr($text, 4, 4);
		$data = substr($text, 8);
	}
	elseif($length == 127) {
		$masks = substr($text, 10, 4);
		$data = substr($text, 14);
	}
	else {
		$masks = substr($text, 2, 4);
		$data = substr($text, 6);
	}
	$text = "";
	for ($i = 0; $i < strlen($data); ++$i) {
		$text .= $data[$i] ^ $masks[$i%4];
	}
	return $text;
}

//Encode message for transfer to client.
function mask($text)
{
	$b1 = 0x80 | (0x1 & 0x0f);
	$length = strlen($text);
	
	if($length <= 125)
		$header = pack('CC', $b1, $length);
	elseif($length > 125 && $length < 65536)
		$header = pack('CCn', $b1, 126, $length);
	elseif($length >= 65536)
		$header = pack('CCNN', $b1, 127, $length);
	return $header.$text;
}

//handshake new client.
function perform_handshaking($receved_header,$client_conn, $host, $port)
{
	$headers = array();
	$lines = preg_split("/\r\n/", $receved_header);
	foreach($lines as $line)
	{
		$line = chop($line);
		if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
		{
			$headers[$matches[1]] = $matches[2];
		}
	}

	$secKey    = @$headers['Sec-WebSocket-Key'];
	$secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
	//hand shaking header
	$upgrade  = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
	"Upgrade: websocket\r\n" .
	"Connection: Upgrade\r\n" .
	"WebSocket-Origin: $host\r\n" .
	"WebSocket-Location: ws://$host:$port/panel/shout.php\r\n".
	"Sec-WebSocket-Accept:$secAccept\r\n\r\n";
	socket_write($client_conn,$upgrade,strlen($upgrade));
}

function ascii_banner() //just for old-skool fun...
{
	$banner="               _    ____             _        _   \n";
	$banner.=" __      _____| |__/ ___|  ___   ___| | _____| |_\n ";
	$banner.="\ \ /\ / / _ \ '_ \___ \ / _ \ / __| |/ / _ \ __|\n";
	$banner.="  \ V  V /  __/ |_) |__) | (_) | (__|   <  __/ |_ \n";
	$banner.="   \_/\_/ \___|_.__/____/ \___/ \___|_|\_\___|\__|\n";
	return $banner;
                                             
}

//utility functions
function say($msg=""){ echo $msg."\n"; } //display server console messages

E criei um outro arquivo que vou chamar de painel com websockets que é acesso via navegador  http://192.168.15.3/painel/
A ideia é que esse painel receba as informações que forem incluídas e ou alteradas pelo ADMIN.

Abaixo o script do websocket,  esta conectando e funcionando bem...

<script language="javascript" type="text/javascript">  
$(document).ready(function(){
	//create a new WebSocket object. {WS-HOST} = 192.168.15.3  {WS-PORT} = 8959
	var wsUri = "ws://{WS-HOST}:{WS-PORT}"; 	
	websocket = new WebSocket(wsUri); 
	websocket.onopen = function(ev) { // connection is open 
		$('#message_box').append("<div class=\"system_msg\">Connected!</div>"); //notify user
		$('#md-alert').modal('show');
		//setTimeout(, 2000);
		setTimeout(function(){
		  	$('#md-alert').modal('hide');
		}, 6000);		
	}
	//#### Message received from server?
	websocket.onmessage = function(ev) {
		if (ev.data){
			var $msg      = JSON.parse(ev.data); //PHP sends Json data
			var $type     = $msg.type; //message type
			if($type == 'usermsg') {
				// mostro mensagems de users..
			}
			//Mensagens do sistema (sockets)
			if($type == 'system'){
				var $umsg   = $msg.message; //message text
				console.log($umsg + " " + $type);
			}
			//Conteudo...
			if($type == 'conteudo'){
				//Carrego o conteudo 
			}			
		}
	};
	websocket.onerror	= function(ev){
		console.log((ev.data));
	}; 
	websocket.onclose 	= function(ev){
		console.log((ev.data));
	}; 
});
</script>

O problema é agora!! Não estou conseguindo mandar as informações para o socket para o painel ler. 

NO ADMIN é outra url etc.: http://192.168.15.3/admin/  quando eu publicar o conteudo, logo após o insert no banco de dados, quero mandar essas informações para o socket.

Eu tentei usar o seguinte script:

/* Get the port for the WWW service. */
$service_port = '8959';

/* Get the IP address for the target host. */
$address = '192.168.15.3';

$socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);

$result = socket_connect($socket, $address, $service_port);
if ($result === false) {
    echo "socket_connect() failed.\nReason: ($result) " . 
          socket_strerror(socket_last_error($socket)) . "\n";
} else echo "Socket conneted  $address: $service_port <br >";
if (socket_bind($socket, $address, $service_port)) {
    echo "Socket bound correctly";
}

$buf = 'Test Message'; // Aqui seria o resultado do insert..
$len = strlen($buf);
if (socket_sendto($socket, $buf, $len, 0x100,  $address, $service_port) !== FALSE) {
    echo "Message sent correctly";
}