<?php
if (!defined("ROOT_PATH"))
{
	header("HTTP/1.1 403 Forbidden");
	exit;
}
class pjUtil extends pjToolkit
{
	public static function getReferer()
	{
		if (isset($_GET['_escaped_fragment_']))
		{
			if (isset($_SERVER['REDIRECT_URL']))
			{
				return $_SERVER['REDIRECT_URL'];
			}
		}
		
		if (isset($_SERVER['HTTP_REFERER']))
		{
			$pos = strpos($_SERVER['HTTP_REFERER'], "#");
			if ($pos !== FALSE)
			{
				return substr($_SERVER['HTTP_REFERER'], 0, $pos);
			}
			return $_SERVER['HTTP_REFERER'];
		}
	}
	
	public static function getClientIp()
	{
		if (isset($_SERVER['HTTP_CLIENT_IP']))
		{
			return $_SERVER['HTTP_CLIENT_IP'];
		} else if(isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
			return $_SERVER['HTTP_X_FORWARDED_FOR'];
		} else if(isset($_SERVER['HTTP_X_FORWARDED'])) {
			return $_SERVER['HTTP_X_FORWARDED'];
		} else if(isset($_SERVER['HTTP_FORWARDED_FOR'])) {
			return $_SERVER['HTTP_FORWARDED_FOR'];
		} else if(isset($_SERVER['HTTP_FORWARDED'])) {
			return $_SERVER['HTTP_FORWARDED'];
		} else if(isset($_SERVER['REMOTE_ADDR'])) {
			return $_SERVER['REMOTE_ADDR'];
		}

		return 'UNKNOWN';
	}
	
	public static function textToHtml($content)
	{
		$content = preg_replace('/\r\n|\n/', '<br />', $content);
		return '<html><head><title></title></head><body>'.$content.'</body></html>';
	}
	public static function toMomemtJS($format)
	{
		$f = str_replace(
				array('Y', 'm', 'n', 'd', 'j'),
				array('yyyy', 'mm', 'm', 'dd', 'd'),
				$format
		);
	
		return $f;
	}
	static public function sortArrayByArray(Array $array, Array $orderArray) 
	{
		$ordered = array();
		foreach($orderArray as $key)
		{
			if(array_key_exists($key,$array))
			{
				$ordered[$key] = $array[$key];
				unset($array[$key]);
			}
		}
		return $ordered + $array;
	}
	
	static public function getPostMaxSize()
	{
		$post_max_size = ini_get('post_max_size');
		switch (substr($post_max_size, -1))
		{
			case 'G':
				$post_max_size = (int) $post_max_size * 1024 * 1024 * 1024;
				break;
			case 'M':
				$post_max_size = (int) $post_max_size * 1024 * 1024;
				break;
			case 'K':
				$post_max_size = (int) $post_max_size * 1024;
				break;
		}
		return $post_max_size;
	}
	
	public static function convertDateTime($date_time, $date_format)
	{
		$time_format = 'h:i A';
		if(count(explode(" ", $date_time)) == 3)
		{
			list($_date, $_time, $_period) = explode(" ", $date_time);
			$iso_time = pjUtil::formatTime($_time . ' ' . $_period, $time_format);
		}else{
			list($_date, $_time) = explode(" ", $date_time);
			$iso_time = pjUtil::formatTime($_time, $time_format);
		}
		$iso_date = pjUtil::formatDate($_date, $date_format);
		$iso_date_time = $iso_date . ' ' . $iso_time;
		$ts = strtotime($iso_date_time);
	
		return compact('iso_date', 'iso_time', 'iso_date_time', 'ts');
	}
	
	public static function truncateDescription($string, $limit, $break=".", $pad="...")
	{
		if(strlen($string) <= $limit)
			return $string;
		if(false !== ($breakpoint = strpos($string, $break, $limit)))
		{
			if($breakpoint < strlen($string) - 1)
			{
				$string = substr($string, 0, $breakpoint) . $pad;
			}
		}
		return $string;
	}
}
?>