GET /chat HTTP/1.1 Host: server.example.com Origin: http://www.jb51.com

GET /chat HTTP/1.1 Host: server.example.com Upgrade: websocket Connection: Upgrade Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ== Origin: http://www.jb51.com Sec-WebSocket-Protocol: chat, superchat Sec-WebSocket-Version: 13

// 建立一个 socket 套接字 $master = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); socket_set_option($master, SOL_SOCKET, SO_REUSEADDR, 1); socket_bind($master, $address, $port); socket_listen($master);

//demo.php Class WS {     var $master;  // 连接 server 的 client     var $sockets = array(); // 不同状态的 socket 管理     var $handshake = false; // 判断是否握手     function __construct($address, $port){         // 建立一个 socket 套接字         $this->master = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)               or die("socket_create() failed");         socket_set_option($this->master, SOL_SOCKET, SO_REUSEADDR, 1)              or die("socket_option() failed");         socket_bind($this->master, $address, $port)                                or die("socket_bind() failed");         socket_listen($this->master, 2)                                           or die("socket_listen() failed");         $this->sockets[] = $this->master;         // debug         echo("Master socket  : ".$this->master."\n");         while(true) {             //自动选择来消息的 socket 如果是握手 自动选择主机             $write = NULL;             $except = NULL;             socket_select($this->sockets, $write, $except, NULL);             foreach ($this->sockets as $socket) {                 //连接主机的 client                 if ($socket == $this->master){                     $client = socket_accept($this->master);                     if ($client < 0) {                         // debug                         echo "socket_accept() failed";                         continue;                     } else {                         //connect($client);                         array_push($this->sockets, $client);                         echo "connect client\n";                     }                 } else {                     $bytes = @socket_recv($socket,$buffer,2048,0);                     if($bytes == 0) return;                     if (!$this->handshake) {                         // 如果没有握手，先握手回应                         //doHandShake($socket, $buffer);                         echo "shakeHands\n";                     } else {                         // 如果已经握手，直接接受数据，并处理                         $buffer = decode($buffer);                         //process($socket, $buffer);                         echo "send file\n";                     }                 }             }         }     } }

$ws = new WS('localhost', 4000);

var ws = new WebSocket("ws://localhost:4000"); ws.onopen = function(){     console.log("握手成功"); }; ws.onerror = function(){     console.log("error"); };

function getKey($req) {     $key = null;     if (preg_match("/Sec-WebSocket-Key: (.*)\r\n/", $req, $match)) {         $key = $match[1];     }     return $key; }

function encry($req){     $key = $this->getKey($req);     $mask = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";     return base64_encode(sha1($key . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11', true)); }

function dohandshake($socket, $req){     // 获取加密key     $acceptKey = $this->encry($req);     $upgrade = "HTTP/1.1 101 Switching Protocols\r\n" .                "Upgrade: websocket\r\n" .                "Connection: Upgrade\r\n" .                "Sec-WebSocket-Accept: " . $acceptKey . "\r\n" .                "\r\n";     // 写入socket     socket_write(socket,$upgrade.chr(0), strlen($upgrade.chr(0)));     // 标记握手已经成功，下次接受数据采用数据帧格式     $this->handshake = true; }

// 解析数据帧 function decode($buffer)  {     $len = $masks = $data = $decoded = null;     $len = ord($buffer[1]) & 127;     if ($len === 126)  {         $masks = substr($buffer, 4, 4);         $data = substr($buffer, 8);     } else if ($len === 127)  {         $masks = substr($buffer, 10, 4);         $data = substr($buffer, 14);     } else  {         $masks = substr($buffer, 2, 4);         $data = substr($buffer, 6);     }     for ($index = 0; $index < strlen($data); $index++) {         $decoded .= $data[$index] ^ $masks[$index % 4];     }     return $decoded; }

// 返回帧信息处理 function frame($s) {     $a = str_split($s, 125);     if (count($a) == 1) {         return "\x81" . chr(strlen($a[0])) . $a[0];     }     $ns = "";     foreach ($a as $o) {         $ns .= "\x81" . chr(strlen($o)) . $o;     }     return $ns; } // 返回数据 function send($client, $msg){     $msg = $this->frame($msg);     socket_write($client, $msg, strlen($msg)); }

var ws = new WebSocket("ws://localhost:4000"); ws.onopen = function(){     console.log("握手成功"); }; ws.onmessage = function(e){     console.log("message:" + e.data); }; ws.onerror = function(){     console.log("error"); }; ws.send("李靖");

GET /chat HTTP/1.1 Host: server.example.com Upgrade: websocket Connection: Upgrade Origin: http://www.1sucai.cn Sec-WebSocket-Protocol: chat, superchat Sec-WebSocket-Key1: xxxx Sec-WebSocket-Key2: xxxx

function encry($key1,$key2,$l8b){ //Get the numbers preg_match_all('/([\d]+)/', $key1, $key1_num); preg_match_all('/([\d]+)/', $key2, $key2_num); $key1_num = implode($key1_num[0]); $key2_num = implode($key2_num[0]); //Count spaces preg_match_all('/([ ]+)/', $key1, $key1_spc); preg_match_all('/([ ]+)/', $key2, $key2_spc); if($key1_spc==0|$key2_spc==0){ $this->log("Invalid key");return; } //Some math $key1_sec = pack("N",$key1_num / $key1_spc); $key2_sec = pack("N",$key2_num / $key2_spc); return md5($key1_sec.$key2_sec.$l8b,1); }

//服务器程序 var crypto = require('crypto'); var WS = '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'; require('net').createServer(function(o){ var key; o.on('data',function(e){ if(!key){ //握手 key = e.toString().match(/Sec-WebSocket-Key: (.+)/)[1]; key = crypto.createHash('sha1').update(key + WS).digest('base64'); o.write('HTTP/1.1 101 Switching Protocols\r\n'); o.write('Upgrade: websocket\r\n'); o.write('Connection: Upgrade\r\n'); o.write('Sec-WebSocket-Accept: ' + key + '\r\n'); o.write('\r\n'); }else{ console.log(e); }; }); }).listen(8000);