//-------------------------------------------------
// Do everything that the above cURL stuff does, but
// manually with the socket.
//-------------------------------------------------

class Socket_Connection extends RemoteXMLConnection
{
	//-------------------------------------------------
	// Open a socket to the url on the specified port.
	//-------------------------------------------------
	
	function createRequest($method = 'GET', $url)
	{
		//-------------------------------------------------
		// Parse the url to get the connection data.
		//-------------------------------------------------
		
		$this->_parseUrl();
		
		//-------------------------------------------------
		// Connect...
		//-------------------------------------------------
		
		$this->_conn = fsockopen($this->_server, $this->_port, $error_number, $error_string, $this->_timeout);
		
		if(!$this->_conn)
		{
			trigger_error("[ERROR] Could not open the socket.", E_USER_ERROR);
		}
		
		//-------------------------------------------------
		// Make sure it times out.
		//-------------------------------------------------
		
		stream_set_timeout($this->_conn, $this->_timeout);
		stream_set_blocking($this->_conn, FALSE);
		
		//-------------------------------------------------
		// Figure out what connection method we are using.
		//-------------------------------------------------
		
		if($method == 'PUT')
		{
			$this->_put = TRUE;
		}
		
		//-------------------------------------------------
		// Set the headers.
		//-------------------------------------------------
		
		$this->_socketCommand("{$method} {$this->_path} HTTP/1.0");
		$this->_socketCommand("Host: {$this->_server}");
		$this->_socketCommand("User-Agent: ". REMOTE_XML_USERAGENT);
		$this->_socketCommand("Connection: Close");
		$this->_socketCommand("");
	}
	
	//-------------------------------------------------
	// Close the socket.
	//-------------------------------------------------
	
	function closeRequest()
	{
		fclose($this->_conn);
	}
	
	//-------------------------------------------------
	// Get the data that the socket returned.
	//-------------------------------------------------
	
	function getReturnData()
	{
		$data = "";
		
		$first_line = TRUE;
		$getting_headers = TRUE;
		
		//-------------------------------------------------
		// Loop through the data returned.
		//-------------------------------------------------
		
		while(!feof($this->_conn))
		{
			$line = fgets($this->_conn, 4096);
			
			//-------------------------------------------------
			// This is the first line, check for the 200 code 
			// (everything's a-okay)
			//-------------------------------------------------
			
			if($first_line)
			{
				if(strlen($line) != 0)
				{
					//-------------------------------------------------
					// Did something go wrong?
					//-------------------------------------------------
					
					if(strstr($line, " 200 ") === FALSE)
					{
						trigger_error("[ERROR] An error occured. HTTP status code was not 200.");
					}
				
					$first_line = FALSE;
				}
			}
			
			//-------------------------------------------------
			// If we're not getting headers anymore, add this line to the data.
			//-------------------------------------------------
			
			if(!$getting_headers)
			{
				$data .= $line;
			}
			
			//-------------------------------------------------
			// If we're still getting headers and this line is equal
			// to CR\LF, tell the script to start recording data for
			// the next loop.
			//-------------------------------------------------
			
			if($getting_headers && $line == "\r\n")
			{
				$getting_headers = FALSE;
			}
		}
		
		return $data;
	}
	
	//--------------------------------------------
	// Send data through the socket.
	//--------------------------------------------
	
	function setPutData($xml)
	{
		if($this->_put)
		{
			fputs($this->_conn, $xml, strlen($xml));
		}
	}
	
	//--------------------------------------------
	// Send a command to the socket.
	//--------------------------------------------
	
	function _socketCommand($command)
	{
		$command = $command ."\r\n";
		fputs($this->_conn, $command, strlen($command));
	}
}