plugins/Comet/bayeux.class.inc.php

   1 <?php
   2 /*
   3  *
   4  * Phomet: a php comet client
   5  *
   6  * Copyright (C) 2008 Morgan 'ARR!' Allen <morganrallen@gmail.com> http://morglog.alleycatracing.com
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 class Bayeux
  25 {
  26     private $oCurl = '';
  27     private $nNextId = 0;
  28
  29     public $sUrl = '';
  30
  31     function __construct($sUrl)
  32     {
  33         $this->sUrl = $sUrl;
  34
  35         $this->oCurl = curl_init();
  36
  37         $aHeaders = array();
  38         $aHeaders[] = 'Connection: Keep-Alive';
  39
  40         curl_setopt($this->oCurl, CURLOPT_URL, $sUrl);
  41         curl_setopt($this->oCurl, CURLOPT_HTTPHEADER, $aHeaders);
  42         curl_setopt($this->oCurl, CURLOPT_HEADER, 0);
  43         curl_setopt($this->oCurl, CURLOPT_POST, 1);
  44         curl_setopt($this->oCurl, CURLOPT_RETURNTRANSFER,1);
  45
  46         $this->handShake();
  47     }
  48
  49     function __destruct()
  50     {
  51         $this->disconnect();
  52     }
  53
  54     function handShake()
  55     {
  56         $msgHandshake = array();
  57         $msgHandshake['channel'] = '/meta/handshake';
  58         $msgHandshake['version'] = "1.0";
  59         $msgHandshake['minimumVersion'] = "0.9";
  60         $msgHandshake['supportedConnectionTypes'] = array('long-polling');
  61         $msgHandshake['id'] = $this->nNextId++;
  62
  63         curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($msgHandshake)))));
  64
  65         $data = curl_exec($this->oCurl);
  66
  67         if(curl_errno($this->oCurl))
  68           die("Error: " . curl_error($this->oCurl));
  69
  70         $oReturn = json_decode($data);
  71
  72         common_debug(print_r($oReturn, true));
  73
  74         if (is_array($oReturn)) {
  75             $oReturn = $oReturn[0];
  76         }
  77
  78         $bSuccessful = ($oReturn->successful) ? true : false;
  79
  80         if($bSuccessful)
  81         {
  82             $this->clientId = $oReturn->clientId;
  83
  84             $this->connect();
  85         }
  86     }
  87
  88     public function connect()
  89     {
  90         $aMsg['channel'] = '/meta/connect';
  91         $aMsg['id'] = $this->nNextId++;
  92         $aMsg['clientId'] = $this->clientId;
  93         $aMsg['connectionType'] = 'long-polling';
  94
  95         curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($aMsg)))));
  96
  97         $data = curl_exec($this->oCurl);
  98     }
  99
 100     function disconnect()
 101     {
 102         $msgHandshake = array();
 103         $msgHandshake['channel'] = '/meta/disconnect';
 104         $msgHandshake['id'] = $this->nNextId++;
 105         $msgHandshake['clientId'] = $this->clientId;
 106
 107         curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($msgHandshake)))));
 108
 109         curl_exec($this->oCurl);
 110     }
 111
 112     public function publish($sChannel, $oData)
 113     {
 114         if(!$sChannel || !$oData)
 115           return;
 116
 117         $aMsg = array();
 118
 119         $aMsg['channel'] = $sChannel;
 120         $aMsg['id'] = $this->nNextId++;
 121         $aMsg['data'] = $oData;
 122         $aMsg['clientId'] = $this->clientId;
 123
 124         curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($aMsg)))));
 125
 126         $data = curl_exec($this->oCurl);
 127 //        var_dump($data);
 128     }
 129 }