123 lines
4 KiB
PHP
123 lines
4 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | Piwigo - a PHP based picture gallery |
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// +-----------------------------------------------------------------------+
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// | Copyright(C) 2008-2009 Piwigo Team http://piwigo.org |
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// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
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// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify |
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// | it under the terms of the GNU General Public License as published by |
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// | the Free Software Foundation |
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// | |
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// | This program is distributed in the hope that it will be useful, but |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// | General Public License for more details. |
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// | |
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// | You should have received a copy of the GNU General Public License |
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// | along with this program; if not, write to the Free Software |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA. |
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// +-----------------------------------------------------------------------+
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// cookie_path returns the path to use for the Piwigo cookie.
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// If Piwigo is installed on :
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// http://domain.org/meeting/gallery/category.php
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// cookie_path will return : "/meeting/gallery"
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function cookie_path()
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{
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if ( isset($_SERVER['REDIRECT_SCRIPT_NAME']) and
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!empty($_SERVER['REDIRECT_SCRIPT_NAME']) )
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{
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$scr = $_SERVER['REDIRECT_SCRIPT_NAME'];
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}
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else if ( isset($_SERVER['REDIRECT_URL']) )
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{
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// mod_rewrite is activated for upper level directories. we must set the
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// cookie to the path shown in the browser otherwise it will be discarded.
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if
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(
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isset($_SERVER['PATH_INFO']) and !empty($_SERVER['PATH_INFO']) and
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($_SERVER['REDIRECT_URL'] !== $_SERVER['PATH_INFO']) and
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(substr($_SERVER['REDIRECT_URL'],-strlen($_SERVER['PATH_INFO']))
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== $_SERVER['PATH_INFO'])
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)
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{
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$scr = substr($_SERVER['REDIRECT_URL'], 0,
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strlen($_SERVER['REDIRECT_URL'])-strlen($_SERVER['PATH_INFO']));
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}
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else
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{
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$scr = $_SERVER['REDIRECT_URL'];
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}
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}
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else
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{
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$scr = $_SERVER['SCRIPT_NAME'];
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}
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$scr = substr($scr,0,strrpos( $scr,'/'));
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// add a trailing '/' if needed
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if ((strlen($scr) == 0) or ($scr{strlen($scr)-1} !== '/'))
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{
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$scr .= '/';
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}
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if ( substr(PHPWG_ROOT_PATH,0,3)=='../')
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{ // this is maybe a plugin inside pwg directory
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// TODO - what if it is an external script outside PWG ?
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$scr = $scr.PHPWG_ROOT_PATH;
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while (1)
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{
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$new = preg_replace('#[^/]+/\.\.(/|$)#', '', $scr);
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if ($new==$scr)
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{
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break;
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}
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$scr=$new;
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}
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}
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return $scr;
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}
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/**
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* persistently stores a variable in pwg cookie
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* @return boolean true on success
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* @see pwg_get_cookie_var
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*/
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function pwg_set_cookie_var($var, $value, $expire=null)
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{
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if ($value==null or $expire===0)
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{
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unset($_COOKIE['pwg_'.$var]);
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return setcookie('pwg_'.$var, false, 0, cookie_path());
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}
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else
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{
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$_COOKIE['pwg_'.$var] = $value;
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$expire = is_numeric($expire) ? $expire : strtotime('+10 years');
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return setcookie('pwg_'.$var, $value, $expire, cookie_path());
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}
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}
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/**
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* retrieves the value of a persistent variable in pwg cookie
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* @return mixed
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* @see pwg_set_cookie_var
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*/
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function pwg_get_cookie_var($var, $default = null)
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{
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if (isset($_COOKIE['pwg_'.$var]))
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{
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return $_COOKIE['pwg_'.$var];
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}
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else
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{
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return $default;
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}
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}
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?>
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