<?php

_get_captcha();

function _get_captcha(){
	if (!isset($_SESSION)){
		session_start();
	}

	$filename = time().rand(1,100000);
	$line = '';
	$x = 0;
	global $_CFG;
	while($x < 4){
		$symbol = chr(rand(60,255));
		if (preg_match("/[^oO0iI1Ll]/si", $symbol) and preg_match("/[a-zA-Z0-9]/si", $symbol)){
			$line .= $symbol;
			$x ++;
		}
	}
	include_once(dirname(__FILE__).'/captcha.inc.php');
	makeCaptchaImage($line, $filename);
	$_SESSION['ins_captcha'] = $line;

	//--------------------------------------------------------------------------------------
	// [[[ Udaljejem nafig starije faili

		$files = glob(dirname(__FILE__).'/captcha/*');
		foreach ($files as $value) {
			if (fileatime($value) < time()-3600){
				unlink($value);
			}
		}

	// ]]] Udaljejem nafig starije faili
	//--------------------------------------------------------------------------------------

	header("Content-type: image/gif");
	echo file_get_contents(dirname(__FILE__).'/captcha/'.$filename.'.gif');
}


function makeCaptchaImage($text, $filename) {
	global $_CFG;

	$aFonts 	= array(dirname(__FILE__).'/arialbd.ttf');
	$oCaptcha	= new PhpCaptcha($aFonts, 95, 22);

	$iCaptcha	= dirname(__FILE__).'/captcha/'.$filename.'.gif';
	$bgCaptcha	= dirname(__FILE__).'/bg.png';

	$oCaptcha->sCode	= $text;
	$oCaptcha->SetFileType('gif');
	$oCaptcha->SetBackgroundImage($bgCaptcha);
	return $oCaptcha->Create($iCaptcha);
}


?>