<?
// *** CAPTCHA image generation ***

require_once(dirname(dirname(__FILE__)).'/include/session.php');

header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); 
header('Last-Modified: ' . gmdate( 'D, d M Y H:i:s') . ' GMT'); 
header('Cache-Control: no-store, no-cache, must-revalidate'); 
header('Cache-Control: post-check=0, pre-check=0', false); 
header('Pragma: no-cache');
header('Content-Type: image/jpeg');

// session_start();


function create_image() { 
    $session =& new Session();
	$unique_number = (123456789+lcg_value()*(abs(987654321-123456789)));
    $unique_number = str_replace('.', '', $unique_number);
	$pass = substr($unique_number, 5, 5);

	// *** Set the session cookie so we know what the passcode is ***
    //setcookie('hhMwU1WB', $pass, time()+450);
    $session->data['comments']->captcha = $pass;
    $session->save();
    
    
	// *** Create the image resource ***
	$image = ImageCreatetruecolor(100, 20);

	// *** We are making two colors, white and black ***
	$clr_white = ImageColorAllocate($image, 255, 255, 255);
	$clr_black = ImageColorAllocate($image, 0, 0, 0);
    $clr_green = ImageColorAllocate($image, 127, 255, 0);
	
	// *** Make the background black ***
	imagefill($image, 0, 0, $clr_white);

	// *** Set the image height and width ***
	imagefontheight(15);
	imagefontwidth(15);

	// *** Add the passcode in white to the image ***
	imagestring($image, 5, 30, 3, $pass, $clr_black);

	// *** Throw in some lines to trick those cheeky bots! ***
	$clr_rand = ImageColorAllocate($image, mt_rand(0,255), mt_rand(0,255), mt_rand(0,255));
	imageline($image, 5, 1, mt_rand(1, 70), mt_rand(5,100)+1, $clr_rand);
	$clr_rand = ImageColorAllocate($image, mt_rand(0,255), mt_rand(0,255), mt_rand(0,255));
	imageline($image, 60, 1, mt_rand(70, 120), mt_rand(5,100)+1, $clr_rand);
	$clr_rand = ImageColorAllocate($image, mt_rand(0,255), mt_rand(0,255), mt_rand(0,255));
    imageline($image, mt_rand(0,80), 1, mt_rand(1, 70), mt_rand(5,100)+1, $clr_rand);
	
	// *** Return the newly created image in jpeg format ***
	return imagejpeg($image);

	// *** Just in case... ***
	imagedestroy($image);
}


die(create_image());


?>