<?php
/* $Id$ */
namespace Mammut\Protocol\HTTP;

(defined('MAMMUT') && (basename(__FILE__) != basename($_SERVER['PHP_SELF']))) or die('ACCESS DENIED');

/**
 * HTTP header class
 *
 * @author Stefan Daurer <s.daurer@q-spot.org>
 * @since 1.1.0.0
 * @package Mammut\Protocol
 */
class Header extends \Mammut\StrictObject {
	private $headers = array();

	/**
	 * Add a new header to the object
	 *
	 * @param string $data
	 *        	the headerdata the header data
	 * @param boolean $replace
	 *        	replace existing header
	 * @param int $code
	 *        	a HTTP status code
	 */
	public function addHeader($data, $replace = true, $code = false) {
		$this->headers[] = array($data,$replace,$code);
	}

	/**
	 * Add a cookie to the header
	 *
	 * @param mixed $name
	 *         	name of the cookie
	 * @param mixed $value
	 *         	content of the cookie	
	 * @param number $expires
	 *        	end of life timestamp of the cookie (0 = end of session, default)
	 * @param string $path
	 *        	server path of the cookie (default: /)
	 * @param string $domain
	 *         	valid cookie domains
	 * @param boolean $secure
	 *         	only send cookie on secure connection
	 * @param boolean $httponly
	 *        	mark the cookie as a HTTP only cookie (can block CSFR
	 */
	public function addCookie($name, $value = '', $expires = 0, $path = '', $domain = '', $secure = false, $httponly = false) {
		$st = self::cookieString($name, $value, $expires, $path, $domain, $secure, $httponly);
		$this->addHeader($st);
	}

	public function sendHeader() {
		foreach($this->headers as $header)
			header($header[0], $header[1], $header[2]);
	}

	public static function cookieString($name, $value = '', $expires = 0, $path = '', $domain = '', $secure = false, $httponly = false) {
		$st = 'Set-Cookie: ';
		$st .= rawurlencode($name) . '=' . rawurlencode($value);
		$st .= (empty($expires) ? '' : '; expires=' . gmdate('D, d-M-Y H:i:s', $expires) . ' GMT');
		$st .= (empty($path) ? '' : '; path=' . $path);
		$st .= (empty($domain) ? '' : '; domain=' . $domain);
		$st .= (!$secure ? '' : '; secure');
		$st .= (!$httponly ? '' : '; HttpOnly');
		return $st;
	}
}