php websocket

发布时间:2016-07-28 11:35:40 阅读:918次

websocket.class.php

<?php
class websocket{
public $log;
public $event;
public $signets;
public $users;
public $master;
public function __construct($config){
if (substr(php_sapi_name(), 0, 3) !== 'cli') {
die("请通过命令行模式运行!");
}
error_reporting(E_ALL);
set_time_limit(0);
ob_implicit_flush();
$this->event = $config['event'];
$this->log = $config['log'];
$this->master=$this->WebSocket($config['address'], $config['port']);
$this->sockets=array('s'=>$this->master);
}
function WebSocket($address,$port){
$server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);
socket_bind($server, $address, $port);
socket_listen($server);
$this->log('开始监听: '.$address.' : '.$port);
return $server;
}
function run(){
while(true){
$changes=$this->sockets;
@socket_select($changes,$write=NULL,$except=NULL,NULL);
foreach($changes as $sign){
if($sign==$this->master){
$client=socket_accept($this->master);
$this->sockets[]=$client;
$user = array(
'socket'=>$client,
'hand'=>false,
);
$this->users[] = $user;
$k=$this->search($client);
$eventreturn = array('k'=>$k,'sign'=>$sign);
$this->eventoutput('in',$eventreturn);
}else{
$len=socket_recv($sign,$buffer,2048,0);
$k=$this->search($sign);
$user=$this->users[$k];
if($len<7){
$this->close($sign);
$eventreturn = array('k'=>$k,'sign'=>$sign);
$this->eventoutput('out',$eventreturn);
continue;
}
if(!$this->users[$k]['hand']){//没有握手进行握手
$this->handshake($k,$buffer);
}else{
$buffer = $this->uncode($buffer);
$eventreturn = array('k'=>$k,'sign'=>$sign,'msg'=>$buffer);
$this->eventoutput('msg',$eventreturn);
}
}
}
}
}
function search($sign){//通过标示遍历获取id
foreach ($this->users as $k=>$v){
if($sign==$v['socket'])
return $k;
}
return false;
}
function close($sign){//通过标示断开连接
$k=array_search($sign, $this->sockets);
socket_close($sign);
unset($this->sockets[$k]);
unset($this->users[$k]);
}
function handshake($k,$buffer){
$buf = substr($buffer,strpos($buffer,'Sec-WebSocket-Key:')+18);
$key = trim(substr($buf,0,strpos($buf,"\r\n")));
$new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true));
$new_message = "HTTP/1.1 101 Switching Protocols\r\n";
$new_message .= "Upgrade: websocket\r\n";
$new_message .= "Sec-WebSocket-Version: 13\r\n";
$new_message .= "Connection: Upgrade\r\n";
$new_message .= "Sec-WebSocket-Accept: " . $new_key . "\r\n\r\n";
socket_write($this->users[$k]['socket'],$new_message,strlen($new_message));
$this->users[$k]['hand']=true;
return true;
}
function uncode($str){
$mask = array();
$data = '';
$msg = unpack('H*',$str);
$head = substr($msg[1],0,2);
if (hexdec($head{1}) === 8) {
$data = false;
}else if (hexdec($head{1}) === 1){
$mask[] = hexdec(substr($msg[1],4,2));
$mask[] = hexdec(substr($msg[1],6,2));
$mask[] = hexdec(substr($msg[1],8,2));
$mask[] = hexdec(substr($msg[1],10,2));
$s = 12;
$e = strlen($msg[1])-2;
$n = 0;
for ($i=$s; $i<= $e; $i+= 2) {
$data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2)));
$n++;
}
}
return $data;
}
function code($msg){
$msg = preg_replace(array('/\r$/','/\n$/','/\r\n$/',), '', $msg);
$frame = array();
$frame[0] = '81';
$len = strlen($msg);
$frame[1] = $len<16?'0'.dechex($len):dechex($len);
$frame[2] = $this->ord_hex($msg);
$data = implode('',$frame);
return pack("H*", $data);
}
function ord_hex($data) {
$msg = '';
$l = strlen($data);
for ($i= 0; $i<$l; $i++) {
$msg .= dechex(ord($data{$i}));
}
return $msg;
}
function idwrite($id,$t){//通过id推送信息
if(!$this->users[$id]['socket']){return false;}//没有这个标示
$t=$this->code($t);
return socket_write($this->users[$id]['socket'],$t,strlen($t));
}
function write($k,$t){//通过标示推送信息
$t=$this->code($t);
return socket_write($k,$t,strlen($t));
}
function eventoutput($type,$event){//事件回调
call_user_func($this->event,$type,$event);
}
function log($t){//控制台输出
if($this->log){
$t=$t."\r\n";
fwrite(STDOUT, iconv('utf-8','gbk//IGNORE',$t));
}
}
}

?>

server.php

  1 <?php
  2 include 'websocket.class.php';
  3 $config=array(
  4   'address'=>'10.77.50.111',
  5   'port'=>'12345',
  6   'event'=>'WSevent',//回调函数的函数名
  7   'log'=>true,
  8 );
  9 $websocket = new websocket($config);
 10 $websocket->run();
 11 function WSevent($type,$event){
 12 print_r($event);
 13   global $websocket;
 14     if('in'==$type){
 15       $websocket->log('客户进入id:'.$event['k']);
 16     }elseif('out'==$type){
 17       $websocket->log('客户退出id:'.$event['k']);
 18     }elseif('msg'==$type){
 19       $websocket->log($event['k'].'消息:'.$event['msg']);
 20       roboot($event['sign'],$event['msg']);
 21     }
 22 }
 23
 24 function roboot($sign,$t){
 25   global $websocket;
 26   switch ($t)
 27   {
 28   case 'hello':
 29     $show='hello,GIt @ OSC';
 30     break;
 31   case 'name':
 32     $show='Robot';
 33     break;
 34   case 'time':
 35     $show='当前时间:'.date('Y-m-d H:i:s');
 36     break;
 37   case '再见':
 38     $show='( ^_^ )/~~拜拜';
 39     $websocket->write($sign,'Robot:'.$show);
 40     $websocket->close($sign);
 41     return;
 42     break;
 43   case '天王盖地虎':

 44     $array = array('小鸡炖蘑菇','宝塔震河妖','粒粒皆辛苦');
 45     $show = $array[rand(0,2)];
 46     break;
 47   default:
 48     $show=$t.'( ⊙o⊙?)不懂,你可以尝试说:hello,name,time,再见,天王盖地虎.';
 49   }
 50   $websocket->write($sign,'Robot:'.$show);
 51 }

index.html

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>websocket_TEST</title>
</head>
<body>
<textarea class="log" style="width: 100%; height: 500px;">
=======websocket======
</textarea>
<input type="button" value="连接" onClick="link()">
<input type="button" value="断开" onClick="dis()">
<input type="text" id="text">
<input type="button" value="发送" onClick="send()">
<script type="text/javascript" src="http://h5.hejian.com/js/lib/jquery-2.1.1.min.js"></script>
<script>
function link(){
  var url='ws://10.77.50.111:12345';
  alert('ok');
  socket=new WebSocket(url);
  socket.onopen=function(){log('连接成功')}
  socket.onmessage=function(msg){log('获得消息:'+msg.data);console.log(msg);}
  socket.onclose=function(){log('断开连接')}
}
function dis(){
  socket.close();
  socket=null;
}
function log(var1){
  $('.log').append(var1+"\r\n");
}
function send(){
  //socket.send($('#text').attr('value'));
  socket.send($('#text').val());
}
function send2(){
  var json = JSON.stringify({'type':'php','msg':$('#text2').attr('value')})
  socket.send(json);
}
</script>
</body>
</html>

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