<?php

/**

 * Project:     Smarty: the PHP compiling template engine

 * File:        Smarty.class.php

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * For questions, help, comments, discussion, etc., please join the

 * Smarty mailing list. Send a blank e-mail to

 * smarty-general-subscribe@lists.php.net

 *

 * @link http://smarty.php.net/

 * @copyright 2001-2005 New Digital Group, Inc.

 * @author Monte Ohrt <monte at ohrt dot com>

 * @author Andrei Zmievski <andrei@php.net>

 * @package Smarty

 * @version 2.6.19

 */

/* $Id: Smarty.class.php 2722 2007-06-18 14:29:00Z danilo $ */

/**

 * DIR_SEP isn't used anymore, but third party apps might

 */

if(!defined('DIR_SEP')) {

    define('DIR_SEP', DIRECTORY_SEPARATOR);

}

/**

 * set SMARTY_DIR to absolute path to Smarty library files.

 * if not defined, include_path will be used. Sets SMARTY_DIR only if user

 * application has not already defined it.

 */

if (!defined('SMARTY_DIR')) {

    define('SMARTY_DIR', dirname(__FILE__) . DIRECTORY_SEPARATOR);

}

if (!defined('SMARTY_CORE_DIR')) {

    define('SMARTY_CORE_DIR', SMARTY_DIR . 'internals' . DIRECTORY_SEPARATOR);

}

define('SMARTY_PHP_PASSTHRU',   0);

define('SMARTY_PHP_QUOTE',      1);

define('SMARTY_PHP_REMOVE',     2);

define('SMARTY_PHP_ALLOW',      3);

/**

 * @package Smarty

 */

class Smarty

{

    /**#@+

     * Smarty Configuration Section

     */

    /**

     * The name of the directory where templates are located.

     *

     * @var string

     */

    var $template_dir    =  'templates';

    /**

     * The directory where compiled templates are located.

     *

     * @var string

     */

    var $compile_dir     =  'templates_c';

    /**

     * The directory where config files are located.

     *

     * @var string

     */

    var $config_dir      =  'configs';

    /**

     * An array of directories searched for plugins.

     *

     * @var array

     */

    var $plugins_dir     =  array('plugins');

    /**

     * If debugging is enabled, a debug console window will display

     * when the page loads (make sure your browser allows unrequested

     * popup windows)

     *

     * @var boolean

     */

    var $debugging       =  false;

    /**

     * When set, smarty does uses this value as error_reporting-level.

     *

     * @var boolean

     */

    var $error_reporting  =  null;

    /**

     * This is the path to the debug console template. If not set,

     * the default one will be used.

     *

     * @var string

     */

    var $debug_tpl       =  '';

    /**

     * This determines if debugging is enable-able from the browser.

     * <ul>

     *  <li>NONE => no debugging control allowed</li>

     *  <li>URL => enable debugging when SMARTY_DEBUG is found in the URL.</li>

     * </ul>

     * @link http://www.foo.dom/index.php?SMARTY_DEBUG

     * @var string

     */

    var $debugging_ctrl  =  'NONE';

    /**

     * This tells Smarty whether to check for recompiling or not. Recompiling

     * does not need to happen unless a template or config file is changed.

     * Typically you enable this during development, and disable for

     * production.

     *

     * @var boolean

     */

    var $compile_check   =  true;

    /**

     * This forces templates to compile every time. Useful for development

     * or debugging.

     *

     * @var boolean

     */

    var $force_compile   =  false;

    /**

     * This enables template caching.

     * <ul>

     *  <li>0 = no caching</li>

     *  <li>1 = use class cache_lifetime value</li>

     *  <li>2 = use cache_lifetime in cache file</li>

     * </ul>

     * @var integer

     */

    var $caching         =  0;

    /**

     * The name of the directory for cache files.

     *

     * @var string

     */

    var $cache_dir       =  'cache';

    /**

     * This is the number of seconds cached content will persist.

     * <ul>

     *  <li>0 = always regenerate cache</li>

     *  <li>-1 = never expires</li>

     * </ul>

     *

     * @var integer

     */

    var $cache_lifetime  =  3600;

    /**

     * Only used when $caching is enabled. If true, then If-Modified-Since headers

     * are respected with cached content, and appropriate HTTP headers are sent.

     * This way repeated hits to a cached page do not send the entire page to the

     * client every time.

     *

     * @var boolean

     */

    var $cache_modified_check = false;

    /**

     * This determines how Smarty handles "<?php ... ?>" tags in templates.

     * possible values:

     * <ul>

     *  <li>SMARTY_PHP_PASSTHRU -> print tags as plain text</li>

     *  <li>SMARTY_PHP_QUOTE    -> escape tags as entities</li>

     *  <li>SMARTY_PHP_REMOVE   -> remove php tags</li>

     *  <li>SMARTY_PHP_ALLOW    -> execute php tags</li>

     * </ul>

     *

     * @var integer

     */

    var $php_handling    =  SMARTY_PHP_PASSTHRU;

    /**

     * This enables template security. When enabled, many things are restricted

     * in the templates that normally would go unchecked. This is useful when

     * untrusted parties are editing templates and you want a reasonable level

     * of security. (no direct execution of PHP in templates for example)

     *

     * @var boolean

     */

    var $security       =   false;

    /**

     * This is the list of template directories that are considered secure. This

     * is used only if {@link $security} is enabled. One directory per array

     * element.  {@link $template_dir} is in this list implicitly.

     *

     * @var array

     */

    var $secure_dir     =   array();

    /**

     * These are the security settings for Smarty. They are used only when

     * {@link $security} is enabled.

     *

     * @var array

     */

    var $security_settings  = array(

                                    'PHP_HANDLING'    => false,

                                    'IF_FUNCS'        => array('array', 'list',

                                                               'isset', 'empty',

                                                               'count', 'sizeof',

                                                               'in_array', 'is_array',

                                                               'true', 'false', 'null'),

                                    'INCLUDE_ANY'     => false,

                                    'PHP_TAGS'        => false,

                                    'MODIFIER_FUNCS'  => array('count'),

                                    'ALLOW_CONSTANTS'  => false

                                   );

    /**

     * This is an array of directories where trusted php scripts reside.

     * {@link $security} is disabled during their inclusion/execution.

     *

     * @var array

     */

    var $trusted_dir        = array();

    /**

     * The left delimiter used for the template tags.

     *

     * @var string

     */

    var $left_delimiter  =  '{';

    /**

     * The right delimiter used for the template tags.

     *

     * @var string

     */

    var $right_delimiter =  '}';

    /**

     * The order in which request variables are registered, similar to

     * variables_order in php.ini E = Environment, G = GET, P = POST,

     * C = Cookies, S = Server

     *

     * @var string

     */

    var $request_vars_order    = 'EGPCS';

    /**

     * Indicates wether $HTTP_*_VARS[] (request_use_auto_globals=false)

     * are uses as request-vars or $_*[]-vars. note: if

     * request_use_auto_globals is true, then $request_vars_order has

     * no effect, but the php-ini-value "gpc_order"

     *

     * @var boolean

     */

    var $request_use_auto_globals      = true;

    /**

     * Set this if you want different sets of compiled files for the same

     * templates. This is useful for things like different languages.

     * Instead of creating separate sets of templates per language, you

     * set different compile_ids like 'en' and 'de'.

     *

     * @var string

     */

    var $compile_id            = null;

    /**

     * This tells Smarty whether or not to use sub dirs in the cache/ and

     * templates_c/ directories. sub directories better organized, but

     * may not work well with PHP safe mode enabled.

     *

     * @var boolean

     *

     */

    var $use_sub_dirs          = false;

    /**

     * This is a list of the modifiers to apply to all template variables.

     * Put each modifier in a separate array element in the order you want

     * them applied. example: <code>array('escape:"htmlall"');</code>

     *

     * @var array

     */

    var $default_modifiers        = array();

    /**

     * This is the resource type to be used when not specified

     * at the beginning of the resource path. examples:

     * $smarty->display('file:index.tpl');

     * $smarty->display('db:index.tpl');

     * $smarty->display('index.tpl'); // will use default resource type

     * {include file="file:index.tpl"}

     * {include file="db:index.tpl"}

     * {include file="index.tpl"} {* will use default resource type *}

     *

     * @var array

     */

    var $default_resource_type    = 'file';

    /**

     * The function used for cache file handling. If not set, built-in caching is used.

     *

     * @var null|string function name

     */

    var $cache_handler_func   = null;

    /**

     * This indicates which filters are automatically loaded into Smarty.

     *

     * @var array array of filter names

     */

    var $autoload_filters = array();

    /**#@+

     * @var boolean

     */

    /**

     * This tells if config file vars of the same name overwrite each other or not.

     * if disabled, same name variables are accumulated in an array.

     */

    var $config_overwrite = true;

    /**

     * This tells whether or not to automatically booleanize config file variables.

     * If enabled, then the strings "on", "true", and "yes" are treated as boolean

     * true, and "off", "false" and "no" are treated as boolean false.

     */

    var $config_booleanize = true;

    /**

     * This tells whether hidden sections [.foobar] are readable from the

     * tempalates or not. Normally you would never allow this since that is

     * the point behind hidden sections: the application can access them, but

     * the templates cannot.

     */

    var $config_read_hidden = false;

    /**

     * This tells whether or not automatically fix newlines in config files.

     * It basically converts \r (mac) or \r\n (dos) to \n

     */

    var $config_fix_newlines = true;

    /**#@-*/

    /**

     * If a template cannot be found, this PHP function will be executed.

     * Useful for creating templates on-the-fly or other special action.

     *

     * @var string function name

     */

    var $default_template_handler_func = '';

    /**

     * The file that contains the compiler class. This can a full

     * pathname, or relative to the php_include path.

     *

     * @var string

     */

    var $compiler_file        =    'Smarty_Compiler.class.php';

    /**

     * The class used for compiling templates.

     *

     * @var string

     */

    var $compiler_class        =   'Smarty_Compiler';

    /**

     * The class used to load config vars.

     *

     * @var string

     */

    var $config_class          =   'Config_File';

/**#@+

 * END Smarty Configuration Section

 * There should be no need to touch anything below this line.

 * @access private

 */

    /**

     * where assigned template vars are kept

     *

     * @var array

     */

    var $_tpl_vars             = array();

    /**

     * stores run-time $smarty.* vars

     *

     * @var null|array

     */

    var $_smarty_vars          = null;

    /**

     * keeps track of sections

     *

     * @var array

     */

    var $_sections             = array();

    /**

     * keeps track of foreach blocks

     *

     * @var array

     */

    var $_foreach              = array();

    /**

     * keeps track of tag hierarchy

     *

     * @var array

     */

    var $_tag_stack            = array();

    /**

     * configuration object

     *

     * @var Config_file

     */

    var $_conf_obj             = null;

    /**

     * loaded configuration settings

     *

     * @var array

     */

    var $_config               = array(array('vars'  => array(), 'files' => array()));

    /**

     * md5 checksum of the string 'Smarty'

     *

     * @var string

     */

    var $_smarty_md5           = 'f8d698aea36fcbead2b9d5359ffca76f';

    /**

     * Smarty version number

     *

     * @var string

     */

    var $_version              = '2.6.19';

    /**

     * current template inclusion depth

     *

     * @var integer

     */

    var $_inclusion_depth      = 0;

    /**

     * for different compiled templates

     *

     * @var string

     */

    var $_compile_id           = null;

    /**

     * text in URL to enable debug mode

     *

     * @var string

     */

    var $_smarty_debug_id      = 'SMARTY_DEBUG';

    /**

     * debugging information for debug console

     *

     * @var array

     */

    var $_smarty_debug_info    = array();

    /**

     * info that makes up a cache file

     *

     * @var array

     */

    var $_cache_info           = array();

    /**

     * default file permissions

     *

     * @var integer

     */

    var $_file_perms           = 0644;

    /**

     * default dir permissions

     *

     * @var integer

     */

    var $_dir_perms               = 0771;

    /**

     * registered objects

     *

     * @var array

     */

    var $_reg_objects           = array();

    /**

     * table keeping track of plugins

     *

     * @var array

     */