php+html 5 websocketに基づいてチャットルームを実現する方法

6318 ワード

この例では、php+html 5がwebsocketに基づいてチャットルームを実現する方法について説明する.皆さんの参考にしてください.具体的には以下の通りです.
html 5のwebsocketは双方向の通信を実現して、数日振り回してチャットルームを作って、みんなに分かち合います

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
"))); $new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true)); $new_message = "HTTP/1.1 101 Switching Protocols\r
"; $new_message .= "Upgrade: websocket\r
"; $new_message .= "Sec-WebSocket-Version: 13\r
"; $new_message .= "Connection: Upgrade\r
"; $new_message .= "Sec-WebSocket-Accept: " . $new_key . "\r
\r
"; socket_write($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){ $msg = preg_replace(array('/\r$/','/
$/','/\r
$/',), '', $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; $isend1($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; $ar['nrong']=' '.$g['ming'].' !'; $ar['users']=$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.' '; $str = $this->code(json_encode($ar)); $this->send1(false,$str,'all'); } function e($str){ $path=dirname(__FILE__).'/log.txt'; $str=$str."
"; error_log($str,3,$path); echo iconv('utf-8','gbk//IGNORE',$str); } } ?>

本稿で述べたphpプログラム設計に役立つことを願っています.