编辑文件 - Realtime.php

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<?php

/*!
 * Open Realtime Connectivity JavaScript Library
 *
 * Copyright 2011, IBT, SA
 *
 * ORTC is part of our framework and it's powered by the world's first Real-Time Web Platform by IBT
 *
 * Join our movement to transform the World Wide Web into the Real-Time Web!
 *
 * Interested in Real-Time technology? See what we can do for your business today.
 * 
 * Transform your old website into an exciting Real-Time experience!
 * 
 * Improve the interaction with your visitor to a level never seen before
 * and increase visitor recurrency and loyalty.
 *
 * Visit us at www.realtime.co and learn more.
 *
 * Date: Thu Dec 05 2013 v2.1.12
 */

class Request {
    static function execute($method, $url, $data=array(), $referer='', $timeout=30, $user_agent=''){
        // Convert the data array into URL Parameters like a=b&foo=bar etc.
        $data = http_build_query($data);
        // parse the given URL
        $url = parse_url($url);
        // extract host and path
        $host = $url['host'];
        $path = isset($url['path']) ? $url['path'] : '';
        
        if (trim($host)=="" ){
            return array(
               'errcode' => -2,
               'status' => 'err',
               'error' => "Error: (parse_url) Host is empty"
               );
        }
        
        if($url['scheme'] == 'http'){
            $port = 80;
            $protocol = '';
        }else{
            $port = 443;
            $protocol = 'ssl://';
        }
        // open a socket connection - timeout: 30 sec
        $fp = fsockopen($protocol.$host, $port, $errno, $errstr, $timeout);
        if($fp) {
                // send the request headers:
            fputs($fp, "$method $path HTTP/1.1\r\n");
            fputs($fp, "host: $host\r\n");
            if($referer != '') fputs($fp, "Referer: $referer\r\n");
            if($method == 'POST'){
                fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
                fputs($fp, "Content-length: " . strlen($data) . "\r\n");
            }
            fputs($fp, "Connection: close\r\n\r\n");
            fputs($fp, $data);
            $result = '';
            while(!feof($fp)){
                        // receive the results of the request
                $result .= fgets($fp, 128);
            }
        } else {
            return array(
               'errcode' => -3,
               'status' => 'err',
               'error' => "$errstr ($errno)"
               );
        }
        // close the socket connection:
        fclose($fp);
        
        // split the result header from the content
        $result = explode("\r\n\r\n", $result, 2);
        
        $header = isset($result[0]) ? $result[0] : '';
        $content = isset($result[1]) ? $result[1] : '';

// be carefull with HTTP1.1 (nginx)
        if(preg_match('/Transfer-Encoding: chunked/i', $header)){
            $chunks = explode("\n", $content);
            if (count($chunks)>1){       
                foreach($chunks as $line => $data){
                    if($line%2 == 0) unset($chunks[$line]);

}
                array_pop($chunks);
                $content = implode("\n", $chunks);
            } else 
            $content = $result[1];
        }
        if( ! preg_match('/^HTTP\/1.1 ([0-9]{3})/', $header, $matches)){
          
           return array(
               'errcode' => -4,
               'status' => 'err',
               'error' => 'Error: failed to localize http 1.1 in the result header',
               'response' => $result
               );
       };
       
       if( !$matches[1] || $matches[1][0] !=='2' ){
        return array(
            'errcode' => -5,
            'status' => 'err',
            'error' => "Error: response was not successful",
            'response' => $result
            );
    }       
    
        // return as structured array:
    return array(
        'errcode' => 0,
        'status' => 'ok',
        'header' => $header,
        'content' => $content
        );
}

}

class Realtime{
	private $ortc_data;
    private $is_version_21;
    
    function __construct($balancer, $app_key, $priv_key, $token){
        
        $arg_list = func_get_args();
        if (count($arg_list)<4) die("ERROR: Some of constructor's parameters are missing.");
        foreach( $arg_list as $idx=>$val )
            if ( trim($val) == "" )
                die("ERROR: parameters '$idx' is not specified.");
            
            $strpos_res = strpos( $balancer, "2.1" );
            $this->is_version_21 = ($strpos_res > 0);
            
            $this->ortc_data['balancer'] = $balancer;
            $this->ortc_data['app_key'] = $app_key;
            $this->ortc_data['priv_key'] = $priv_key;
            $this->ortc_data['token'] = $token;
        }
        
        
        private function _get_server(){
          $url = $this->ortc_data['balancer'].'?appkey='.$this->ortc_data['app_key'];
          $balancer_response = Request::execute("GET",$url);
          if($balancer_response['errcode'] != 0){
             die('Error getting data from balancer! '.$balancer_response['error'].' Response: '.print_r($balancer_response['response'],true));
         }
                // error
         if(!preg_match('/https?:\/\/[^\"]+/', $balancer_response['content'], $matches)){
            return '';
        }
        if('http://undefined:undefined' == $matches[0]) return '';
        
		// success
        return $matches[0];
    }
    
    private function send_message_part($url, $channel, $msg, &$response = Array() ){
      $message = array(
        'AK' => $this->ortc_data['app_key'],
        'PK' => $this->ortc_data['priv_key'],
        'AT' => $this->ortc_data['token'],
        'C' => $channel,
        'M' => $msg
        );
      
      $content = Request::execute("POST",$url. '/send/', $message);
      
      $response = $content;

return ( $content['errcode'] == 0 );
  }

public function send($channel, $msg, &$response = Array() ){
    
      $url = $this->_get_server();

if(!$url || $url == "") return false; // no server available

$numberOfParts = ((int)(strlen($msg) / 700)) + ((strlen($msg) % 700 == 0)? 0 : 1 );
        $guid = substr(uniqid(),5,8);

if($numberOfParts > 1){
         $part = 1;

while ($part <= $numberOfParts){

$ret = $this->send_message_part($url, $channel, $guid."_".$part."-".$numberOfParts."_".substr($msg,($part-1) * 699, 699), $response ); // $response returned used for debug purposes
				if (!$ret)  return false;

$part = $part + 1;

}

return true;
        }
        else
        {
			$ret = $this->send_message_part($url,$channel,$guid."_1-1_".$msg,$response); // returning $response for debug purpose
            return $ret;
        }
    }
    
    
    public function auth($channels, $private = 0, $expire_time = 180000, &$response = Array() ){

// post permissions
        $fields = array(
            'AK' => $this->ortc_data['app_key'],
            'PK' => $this->ortc_data['priv_key'],
                    'AT' => $this->ortc_data['token'], //access token
                    'PVT' => $private,
                    'TTL' => $expire_time,
                    'TP' => count($channels) // total num of channels
                    );
        
        foreach($channels as $channel => $perms){
            $fields[$channel] = $perms;
        }
        $url = $this->_get_server();
                if(!$url) return false; // no server available
                
                $auth_path = '/authenticate';
                
                $content = Request::execute('POST', $url.$auth_path, $fields, $referer='', 15, 'ortc-php'); // /auth or /authenticate depends on the server version

$response = $content;
                
                return ( $content['errcode'] == 0 );        
            }
            
}
?>

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