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<?php
/*
+---------------------------------------------------------------------------
| Invision Power KERNEL
| Invision Power Board
| ========================================
| by Matthew Mecham
| (c) 2006 Invision Power Services
| Nullified by Terabyte
| ========================================
+---------------------------------------------------------------------------
| INVISION POWER BOARD IS NOT FREE SOFTWARE!
|
+---------------------------------------------------------------------------
|
| > Communication Class: Allows data to be sent via HTTP:POST
| > Script written by Matt Mecham
| > Date started: Friday 6th January 2006 (12:24)
|
+---------------------------------------------------------------------------
*/
/**
* Class Communication
*
* Class to send data via HTTP:POST and return data
*
* @package IPS_KERNEL
* @author Matt Mecham
* @version 2.1
*/
if ( ! defined( 'IPS_CLASSES_PATH' ) )
{
/**
* Define classes path
*/
define( 'IPS_CLASSES_PATH', dirname(__FILE__) );
}
/**
* Class Communication
*
* Wrapper for getting file contents
*
* @package IPS_KERNEL
* @author Matt Mecham
* @version 2.1
*/
class class_communication
{
/**
* Use sockets flag
*
* @var integer
*/
var $use_sockets = 0;
/**
* Error array
*
* @var array
*/
var $errors = array();
/**
* Key prefix
* Prefix to identify communication strings
*
* @var string
*/
var $key_prefix = '__xsx__';
/**#@+
* Set Authentication
*
* @var strings
*/
var $auth_req = 0;
var $auth_user;
var $auth_pass;
/**#@-*/
/*-------------------------------------------------------------------------*/
// Constructor
/*-------------------------------------------------------------------------*/
function class_communication()
{
}
/*-------------------------------------------------------------------------*/
// RECEIVE DATA
/*-------------------------------------------------------------------------*/
/**
* Receive data from the "send" function
*
* @param array Array of fields to return
* @return array Array of fields
*/
function communication_receive_data( $return_fields=array() )
{
//-----------------------------------------
// INIT
//-----------------------------------------
$return_array = array();
//-----------------------------------------
// Get data...
//-----------------------------------------
foreach( $_REQUEST as $k => $v )
{
if ( strstr( $k, $this->key_prefix ) )
{
$k = str_replace( $this->key_prefix, '', $k );
$return_array[ $k ] = $v;
}
}
return $this->_filter_fields( $return_array );
}
/*-------------------------------------------------------------------------*/
// SEND DATA
/*-------------------------------------------------------------------------*/
/**
* Send the data
*
* @param string URI to post to
* @param array Arry of post fields
* @return string File data
*/
function communication_send_data( $file_location='', $post_array=array() )
{
if ( ! is_array( $post_array ) OR ! count( $post_array ) )
{
return FALSE;
}
if ( ! $file_location )
{
return FALSE;
}
return $this->_post_data( $file_location, $post_array );
}
/*-------------------------------------------------------------------------*/
// Filter off fields
/*-------------------------------------------------------------------------*/
/**
* Filter out fields (optional)
*
* @access private
* @param array Array of fields to return
* @return array Array of fields
*/
function _filter_fields( $in_fields=array(), $out_fields=array() )
{
//-----------------------------------------
// INIT
//-----------------------------------------
$return_array = array();
//-----------------------------------------
// Check
//-----------------------------------------
if ( ! is_array( $in_fields ) or ! count( $in_fields ) )
{
return FALSE;
}
if ( ! is_array( $out_fields ) or ! count( $out_fields ) )
{
return $in_fields;
}
//-----------------------------------------
// Get data...
//-----------------------------------------
foreach( $out_fields as $k => $type )
{
if ( $in_fields[ $k ] )
{
switch ( $type )
{
default:
case 'string':
case 'text':
$return_array[ $k ] = trim( $in_fields[ $k ] );
break;
case 'int':
case 'integar':
$return_array[ $k ] = intval( $in_fields[ $k ] );
break;
case 'float':
case 'floatval':
$return_array[ $k ] = floatval( $in_fields[ $k ] );
break;
}
}
}
return $return_array;
}
/*-------------------------------------------------------------------------*/
// SEND DATA
/*-------------------------------------------------------------------------*/
/**
* Get file contents (with sockets)
*
* @access private
* @param string URI to post to
* @param array Arry of post fields
* @return string File data
*/
function _post_data( $file_location, $post_array )
{
//-------------------------------
// INIT
//-------------------------------
$data = null;
$fsocket_timeout = 10;
$post_back = array();
//-------------------------------
// Fix up post string
//-------------------------------
foreach ( $post_array as $key => $val )
{
$post_back[] = $this->key_prefix . $key . '=' . urlencode($val);
}
$post_back_str = implode('&', $post_back);
//-------------------------------
// Parse URL
//-------------------------------
$url_parts = parse_url($file_location);
if ( ! $url_parts['host'] )
{
$this->errors[] = "No host found in the URL '$file_location'!";
return FALSE;
}
//-------------------------------
// Finalize
//-------------------------------
$host = $url_parts['host'];
$port = ( isset($url_parts['port']) ) ? $url_parts['port'] : 80;
//-------------------------------
// Tidy up path
//-------------------------------
if ( ! empty( $url_parts["path"] ) )
{
$path = $url_parts["path"];
}
else
{
$path = "/";
}
if ( ! empty( $url_parts["query"] ) )
{
$path .= "?" . $url_parts["query"];
}
//-------------------------------
// Try CURL first...
//-------------------------------
if ( function_exists("curl_init") AND function_exists("curl_exec") )
{
if ( $sock = curl_init() )
{
curl_setopt( $sock, CURLOPT_URL , $file_location );
curl_setopt( $sock, CURLOPT_TIMEOUT , 15 );
curl_setopt( $sock, CURLOPT_POST , TRUE );
curl_setopt( $sock, CURLOPT_POSTFIELDS , $post_back_str );
curl_setopt( $sock, CURLOPT_POSTFIELDSIZE , 0);
curl_setopt( $sock, CURLOPT_RETURNTRANSFER , TRUE );
$result = curl_exec($sock);
curl_close($sock);
return $result ? $result : FALSE;
}
}
else
{
if ( ! $fp = @fsockopen( $host, $port, $errno, $errstr, $fsocket_timeout ) )
{
$this->errors[] = "CONNECTION REFUSED FROM $host";
return FALSE;
}
else
{
$final_carriage = "";
if ( ! $this->auth_req )
{
$final_carriage = "\r\n";
}
$header = "POST $path HTTP/1.0\r\n";
$header .= "Host: $host\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($post_back_str) . "\r\n{$final_carriage}";
if ( ! fputs( $fp, $header . $post_back_str ) )
{
$this->errors[] = "Unable to send request to $host!";
return FALSE;
}
if ( $this->auth_req )
{
if( $this->auth_user && $this->auth_pass )
{
$header = "Authorization: Basic ".base64_encode("{$this->auth_user}:{$this->auth_pass}")."\r\n\r\n";
if ( ! fputs( $fp, $header ) )
{
$this->errors[] = "Authorization Failed!";
return FALSE;
}
}
}
}
@stream_set_timeout($fp, $fsocket_timeout);
$status = @socket_get_status($fp);
while( ! feof($fp) && ! $status['timed_out'] )
{
$data .= fgets ($fp,8192);
$status = socket_get_status($fp);
}
fclose ($fp);
//-------------------------------
// Strip headers
//-------------------------------
$tmp = split("\r\n\r\n", $data, 2);
$data = $tmp[1];
return $data;
}
}
}
?>