php +html5 websocket 聊天室

Posted 2020-08-23 lewo的博客

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针对内容比较长出错，修改后的解码函数和加码函数原文请看上一篇 http://yixun.yxsss.com/yw3104.html

function uncode($str,$key){
        $mask = array();  
        $data = ‘‘;  
        $msg = unpack(‘H*‘,$str);
        $head = substr($msg[1],0,2);  
        if ($head == ‘81‘ && !isset($this->slen[$key])) {  
            $len=substr($msg[1],2,2);
            $len=hexdec($len);
            if(substr($msg[1],2,2)==‘fe‘){
                $len=substr($msg[1],4,4);
                $len=hexdec($len);
                $msg[1]=substr($msg[1],4);
            }else if(substr($msg[1],2,2)==‘ff‘){
                $len=substr($msg[1],4,16);
                $len=hexdec($len);
                $msg[1]=substr($msg[1],16);
            }
            $mask[] = hexdec(substr($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;
            $n=0;
        }else if($this->slen[$key] > 0){
            $len=$this->slen[$key];
            $mask=$this->ar[$key];
            $n=$this->n[$key];
            $s = 0;
        }
        
        $e = strlen($msg[1])-2;
        for ($i=$s; $i<= $e; $i+= 2) {  
            $data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2)));  
            $n++;  
        }  
        $dlen=strlen($data);
        
        if($len > 255 && $len > $dlen+intval($this->sjen[$key])){
            $this->ar[$key]=$mask;
            $this->slen[$key]=$len;
            $this->sjen[$key]=$dlen+intval($this->sjen[$key]);
            $this->sda[$key]=$this->sda[$key].$data;
            $this->n[$key]=$n;
            return false;
        }else{
            unset($this->ar[$key],$this->slen[$key],$this->sjen[$key],$this->n[$key]);
            $data=$this->sda[$key].$data;
            unset($this->sda[$key]);
            return $data;
        }
        
    }
    
    
    function code($msg){
        $frame = array();  
        $frame[0] = ‘81‘;  
        $len = strlen($msg);
        if($len < 126){
            $frame[1] = $len<16?‘0‘.dechex($len):dechex($len);
        }else if($len < 65025){
            $s=dechex($len);
            $frame[1]=‘7e‘.str_repeat(‘0‘,4-strlen($s)).$s;
        }else{
            $s=dechex($len);
            $frame[1]=‘7f‘.str_repeat(‘0‘,16-strlen($s)).$s;
        }
        $frame[2] = $this->ord_hex($msg);  
        $data = implode(‘‘,$frame);  
        return pack("H*", $data);  
    }

其中主函数run 里面的接收修改为

do{
    $l=socket_recv($sock,$buf,1000,0);
    $len+=$l;
    $buffer.=$buf;
}while($l==1000);

服务器端代码：

var fs = require(‘fs‘)
    , http = require(‘http‘)
    , socketio = require(‘socket.io‘);
 
var server = http.createServer(function(req, res) {
    res.writeHead(200, { ‘Content-type‘: ‘text/html‘});
    res.end(fs.readFileSync(__dirname + ‘/index.html‘));
}).listen(8080, function() {
    console.log(‘Listening at: http://localhost:8080‘);
});
 
var ids=[];
var io=socketio.listen(server);
io.on(‘connection‘, function (socket) {
    ids.push(socket.id);
    socket.on(‘key‘, function (msg) {
        console.log(‘Message Received: ‘, msg);
        console.log(‘sockid：‘+socket.id);
        console.log(ids);
        
        io.sockets.socket(ids[0]).emit(‘key‘,msg);//向指定的用户发信息
                //socket.broadcast.emit(‘key‘, msg); //公告
        //socket.emit(‘key‘, msg); //发给自己
    });
    socket.on(‘disconnect‘,function(){
        console.log(‘关闭‘+socket.id);
    });
});

客服端：

<!doctype html>
<html>
<head>
<title>sss</title>
<meta charset="utf-8">
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect(‘http://localhost:8080‘);
socket.on(‘key‘, function (data) {
    document.getElementById(‘nr‘).innerHTML+=data.aa+‘<br>‘;
});

function send(){
    var v=document.getElementById(‘sss‘).value;
    socket.emit(‘key‘,{‘aa‘:v});
}
</script>

</head>
<body>

<div id="nr">

</div>
<input type="text" id="sss">
<button 0nClick="send();">发送</button>

</body>
</html>

最近弄html5最新功能WebSocket 网上找了很多资料都是相互抄袭而且用不了，经过2天的折腾终于好了，不过还有昵称是中文名的时候会自动断了的问题估计是转码的问题。

php 的 WebSocket 13 服务器的代码

<?php
error_reporting(E_ALL);
ob_implicit_flush();

$sk=new Sock(‘127.0.0.1‘,8000);
$sk->run();
class Sock{
    public $sockets;
    public $users;
    public $master;
    
    public function __construct($address, $port){
        $this->master=$this->WebSocket($address, $port);
        $this->sockets=array(‘s‘=>$this->master);
    }
    
    
    function run(){
        while(true){
            $changes=$this->sockets;
            socket_select($changes,$write=NULL,$except=NULL,NULL);
            foreach($changes as $sock){
                if($sock==$this->master){
                    $client=socket_accept($this->master);
                    //$key=uniqid();
                    $this->sockets[]=$client;
                    $this->users[]=array(
                        ‘socket‘=>$client,
                        ‘shou‘=>false
                    );
                }else{
                    $len=socket_recv($sock,$buffer,2048,0);
                    $k=$this->search($sock);
                    if($len<7){
                        $name=$this->users[$k][‘ming‘];
                        $this->close($sock);
                        $this->send2($name,$k);
                        continue;
                    }
                    if(!$this->users[$k][‘shou‘]){
                        $this->woshou($k,$buffer);
                    }else{
                        $buffer = $this->uncode($buffer);
                        $this->send($k,$buffer);
                    }
                }
            }
            
        }
        
    }
    
    function close($sock){
        $k=array_search($sock, $this->sockets);
        socket_close($sock);
        unset($this->sockets[$k]);
        unset($this->users[$k]);
        $this->e("key:$k close");
    }
    
    function search($sock){
        foreach ($this->users as $k=>$v){
            if($sock==$v[‘socket‘])
            return $k;
        }
        return false;
    }
    
    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->e(‘Server Started : ‘.date(‘Y-m-d H:i:s‘));
        $this->e(‘Listening on   : ‘.$address.‘ port ‘.$port);
        return $server;
    }
    
    
    function woshou($k,$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][‘shou‘]=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 send($k,$msg){
        /*$this->send1($k,$this->code($msg),‘all‘);*/
        parse_str($msg,$g);
        $this->e($msg);
        $ar=array();
        if($g[‘type‘]==‘add‘){
            $this->users[$k][‘ming‘]=$g[‘ming‘];
            $ar[‘add‘]=true;
            $ar[‘nrong‘]=‘欢迎‘.$g[‘ming‘].‘加入！‘;
            $ar[‘users‘]=$this->getusers();
            $key=‘all‘;
        }else if($g[‘type‘]==‘ltiao‘){
            $ar[‘nrong‘]=$g[‘nr‘];
            $key=$g[‘key‘];
        }
        $msg=json_encode($ar);
        $this->e($msg);
        $msg = $this->code($msg);
        $this->send1($k,$msg,$key);
        //socket_write($this->users[$k][‘socket‘],$msg,strlen($msg));
    }
    
    function getusers(){
        $ar=array();
        foreach($this->users as $k=>$v){
            $ar[$k]=$v[‘ming‘];
        }
        return $ar;
    }
    
    function send1($k,$str,$key=‘all‘){
        if($key==‘all‘){
            foreach($this->users as $v){
                socket_write($v[‘socket‘],$str,strlen($str));
            }
        }else{
            if($k!=$key)
            socket_write($this->users[$k][‘socket‘],$str,strlen($str));
            socket_write($this->users[$key][‘socket‘],$str,strlen($str));
        }
    }
    
    function send2($ming,$k){
        $ar[‘remove‘]=true;
        $ar[‘removekey‘]=$k;
        $ar[‘nrong‘]=$ming.‘退出聊天室‘;
        $str = $this->code(json_encode($ar));
        $this->send1(false,$str,‘all‘);
    }
    
    function e($str){
        $path=dirname(__FILE__).‘/log.txt‘;
        $str=$str."\n";
        error_log($str,3,$path);
        echo iconv(‘utf-8‘,‘gbk//IGNORE‘,$str);
    }
}
?>

接上一篇 html的代码

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>socket</title>
<style type="text/css">
#cc,#cb{margin:10px auto; width:800px; border:solid 1px #CCCCCC;  height:500px; font-size:14px;}
#cc p{line-height:1.8; margin:0px; padding:0px;}
#cb{height:30px; border:0px;}
#aaad{display:none;}
#aaas{display:block;}
.a{color:#008040;}
.e{color:#F33;}
.b{color:#333;}
.c{color:#999;}

#autors{float:right; width:200px; height:480px; padding:10px 0px; overflow:auto; background-color:#F2F2F2;}
#content{float:left; width:580px; height:480px; padding:10px; }
#autors a{display:block; line-height:25px; color:#03C; text-decoration:none; padding:0px 10px;}
#autors .userck,#autors a:hover{background-color:#999; color:#FFF;}

</style>
</head>

<body>
<div id="cc">
    <div id="content"></div>
    <div id="autors">
        <a href="javascript:;" 0nClick="ac(‘all‘,this)" class="userck">所有人</a>
    </div>
</div>
<div id="cb">
<p id="aaas">
<span class="an1">设置昵称：</span>
<input type="text"   maxlength="10" size="10" id="nicheg">
<input type="button" value="进入聊天室" 0nClick="aa()">
</p>
<p id="aaad">
<input type="text"   maxlength="50" size="50" id="texts">
<input type="button" value="发送" 0nClick="ab()"> 
<input type="button" value="退出聊天室" 0nClick="az()">
</p>
</div>
<script src="http://www.yxsss.com/ui/p/a.js" type="text/javascript"></script>
<script>
var socket=null,content=A.$(‘content‘),autors=A.$(‘autors‘),key=‘all‘,user=[];
var an1s=document.getElementsByClassName(‘an1‘),an2s=document.getElementsByClassName(‘an2‘);
function aa(){
    var url=‘ws://localhost:8000‘;
    var ming=A.$(‘nicheg‘).value.trim();
    if(ming==‘‘){
        alert(‘昵称不能为空‘);
        return false;    
    }
    socket=new WebSocket(url);
    socket.onopen=function(){
        if(socket.readyState==1){
            socket.send(‘type=add&ming=‘+ming);
        }else{
            content.appendChild(‘<p class="e">进入失败！<p>‘);
        }
    }
    socket.onmessage=function(msg){
        eval(‘var da=‘+msg.data);
        if(da.add){
            for(i in da.users){
                if(typeof(user[i])==‘undefined‘){
                    var ob=A.$$(‘<a href="javascript:;" 0nClick="ac(\‘‘+i+‘\‘,this)">‘+da.users[i]+‘</a>‘);
                    user[i]=ob;
                    autors.appendChild(ob);
                }
            }
            A.$(‘aaad‘).style.display=‘block‘;
            A.$(‘aaas‘).style.display=‘none‘;
        }
        if(da.remove){
            user[da.removekey].del();
            content.appendChild(A.$$(‘<p class="c">‘+da.nrong+‘</p>‘));
            return ;
        }
        content.appendChild(A.$$(‘<p class="b">‘+da.nrong+‘</p>‘));
    }
    socket.onclose=function(){
        content.appendChild(A.$$(‘<p class="c">退出聊天室</p>‘));
    }
}

function ac(k,t){
    key=k;
    t.parentNode.children.rcss(‘userck‘,‘‘);
    t.rcss(‘‘,‘userck‘);
}

function ab(){
    socket.send(‘type=ltiao&nr=‘+A.$(‘texts‘).value+‘&key=‘+key);
}

function az(){
  socket.close();
  socket=null;
}
</script>
</body>
</html>

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