Web sockets test
服务器端
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,$buffer,2048,0); print_r($buffer); if($bytes == 0) return; if (!$this->handshake) { // 如果没有握手，先握手回应 $this->doHandShake($socket, $buffer); echo "shakeHands\n"; } else { // 如果已经握手，直接接受数据，并处理 $buffer = $this->decode($buffer); //process($socket, $buffer); echo "send file\n"; } } } } } function dohandshake($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: " . $acceptKey . "\r\n" . "\r\n"; echo "dohandshake ".$upgrade.chr(0); // 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 $this->handshake = true; } function encry($req) { $key = $this->getKey($req); $mask = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; return base64_encode(sha1($key . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11', true)); } function getKey($req) { $key = null; if (preg_match("/Sec-WebSocket-Key: (.*)\r\n/", $req, $match)) { $key = $match[1]; } return $key; } // 解析数据帧 function decode($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)); }} 测试 $ws = new WS("127.0.0.1",2000);