<?php // -*- mode:php; tab-width:4; indent-tabs-mode:t; c-basic-offset:4; -*-
#CMS - CMS Made Simple
#(c)2004-2008 by Ted Kulp (ted@cmsmadesimple.org)
#This project's homepage is: http://cmsmadesimple.org
#
#This program is free software; you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation; either version 2 of the License, or
#(at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#GNU General Public License for more details.
#You should have received a copy of the GNU General Public License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#$Id$
/**
* Static methods for handling web responses.
*
* @author Ted Kulp
* @since 2.0
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license GPL
**/
class CmsResponse extends CmsObject
{
function __construct()
{
parent::__construct();
}
function get_encoding()
{
return 'UTF-8';
}
/**
* Redirects a user to given url.
*
* @param $to The url to redirect to
*
* @return void
* @author Ted Kulp
**/
public static function redirect($to)
{
$_SERVER['PHP_SELF'] = null;
$config = array();
try
{
$config = cms_config();
}
catch (Exception $e)
{
}
$schema = $_SERVER['SERVER_PORT'] == '443' ? 'https' : 'http';
$host = strlen($_SERVER['HTTP_HOST'])?$_SERVER['HTTP_HOST']:$_SERVER['SERVER_NAME'];
$components = parse_url($to);
if(count($components) > 0)
{
$to = (isset($components['scheme']) && startswith($components['scheme'], 'http') ? $components['scheme'] : $schema) . '://';
$to .= isset($components['host']) ? $components['host'] : $host;
$to .= isset($components['port']) ? ':' . $components['port'] : '';
if(isset($components['path']))
{
if(in_array(substr($components['path'],0,1),array('\\','/')))//Path is absolute, just append.
{
$to .= $components['path'];
}
//Path is relative, append current directory first.
else if (isset($_SERVER['PHP_SELF']) && !is_null($_SERVER['PHP_SELF'])) //Apache
{
$to .= (strlen(dirname($_SERVER['PHP_SELF'])) > 1 ? dirname($_SERVER['PHP_SELF']).'/' : '/') . $components['path'];
}
else if (isset($_SERVER['REQUEST_URI']) && !is_null($_SERVER['REQUEST_URI'])) //Lighttpd
{
if (endswith($_SERVER['REQUEST_URI'], '/'))
$to .= (strlen($_SERVER['REQUEST_URI']) > 1 ? $_SERVER['REQUEST_URI'] : '/') . $components['path'];
else
$to .= (strlen(dirname($_SERVER['REQUEST_URI'])) > 1 ? dirname($_SERVER['REQUEST_URI']).'/' : '/') . $components['path'];
}
}
$to .= isset($components['query']) ? '?' . $components['query'] : '';
$to .= isset($components['fragment']) ? '#' . $components['fragment'] : '';
}
else
{
$to = $schema."://".$host."/".$to;
}
if (headers_sent() && !(isset($config) && $config['debug'] == true))
{
// use javascript instead
echo '<script type="text/javascript">
<!--
location.replace("'.$to.'");
// -->
</script>
<noscript>
<meta http-equiv="Refresh" content="0;URL='.$to.'">
</noscript>';
exit;
}
else
{
if (isset($config) && $config['debug'] == true)
{
echo "Debug is on. Redirecting disabled... Please click this link to continue.<br />";
echo "<a href=\"".$to."\">".$to."</a><br />";
echo '<pre>';
echo CmsProfiler::get_instance()->report();
echo '</pre>';
exit();
}
else
{
header("Location: $to");
exit();
}
}
}
/**
* Given a page ID or an alias, redirect to it
*/
public static function redirect_to_alias($alias)
{
$node = CmsPageTree::get_node_by_alias($alias);
$content = $node->get_content();
if (isset($content))
{
if ($content->get_url() != '')
{
redirect($content->get_url());
}
}
}
/**
* Shows a very close approximation of an Apache generated 404 error.
* It also sends the actual header along as well, so that generic
* browser error pages (like what IE does) will be displayed.
*
* @return void
* @author Ted Kulp
**/
function send_error_404()
{
while (@ob_end_clean());
header("HTTP/1.0 404 Not Found");
header("Status: 404 Not Found");
echo '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL was not found on this server.</p>
</body></html>';
exit();
}
/**
* Converts a string into a valid DOM id.
*
* @param string The string to be converted
* @return string The converted string
* @author Ted Kulp
**/
public static function make_dom_id($text)
{
return trim(preg_replace("/[^a-z0-9_\-]+/", '_', strtolower($text)), ' _');
}
}
# vim:ts=4 sw=4 noet
?>
) is private.
