<?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 2.6.16
 */

/* $Id: Smarty.class.php,v 1.526 2006/11/30 17:01:28 mohrt Exp $ */

/**
 * 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';

    /**
     * An array of directories searched for plugins.
     *
     * @var array
     */
    var $plugins_dir     =  array('plugins');

    /**
     * This is the path to the debug console template. If not set,
     * the default one will be used.
     *
     * @var string
     */
    var $debug_tpl       =  '';

    /**
     * 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;

    /**
     * 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 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';

    /**
     * This indicates which filters are automatically loaded into Smarty.
     *
     * @var array array of filter names
     */
    var $autoload_filters = array();

    /**
     * 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;

    /**
     * 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';

/**#@+
 * 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();

    /**
     * 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              = '2.6.16';

    /**
     * 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;

    /**
     * table keeping track of plugins
     *
     * @var array
     */
    var $_plugins              = array(
                                       'modifier'      => array(),
                                       'function'      => array(),
                                       'compiler'      => array(),
                                       'prefilter'     => array(),
                                       'resource'      => array(),
                                       'insert'        => array()
                                       );

    /**
     * cache serials
     *
     * @var array
     */
    var $_cache_serials = array();

    /**
     * name of optional cache include file
     *
     * @var string
     */
    var $_cache_include = null;

    /**
     * indicate if the current code is used in a compiled
     * include
     *
     * @var string
     */
    var $_cache_including = false;

    /**#@-*/
    /**
     * The class constructor.
     */
    function Smarty()
    {
      $this->assign('SCRIPT_NAME', isset($_SERVER['SCRIPT_NAME']) ? $_SERVER['SCRIPT_NAME']
                    : @$GLOBALS['HTTP_SERVER_VARS']['SCRIPT_NAME']);
    }

    /**
     * assigns values to template variables
     *
     * @param array|string $tpl_var the template variable name(s)
     * @param mixed $value the value to assign
     */
    function assign($tpl_var, $value = null)
    {
        if (is_array($tpl_var)){
            foreach ($tpl_var as $key => $val) {
                if ($key != '') {
                    $this->_tpl_vars[$key] = $val;
                }
            }
        } else {
            if ($tpl_var != '')
                $this->_tpl_vars[$tpl_var] = $value;
        }
    }

    /**
     * assigns values to template variables by reference
     *
     * @param string $tpl_var the template variable name
     * @param mixed $value the referenced value to assign
     */
    function assign_by_ref($tpl_var, &$value)
    {
        if ($tpl_var != '')
            $this->_tpl_vars[$tpl_var] = &$value;
    }

    /**
     * appends values to template variables
     *
     * @param array|string $tpl_var the template variable name(s)
     * @param mixed $value the value to append
     */
    function append($tpl_var, $value=null, $merge=false)
    {
        if (is_array($tpl_var)) {
            // $tpl_var is an array, ignore $value
            foreach ($tpl_var as $_key => $_val) {
                if ($_key != '') {
                    if(!@is_array($this->_tpl_vars[$_key])) {
                        settype($this->_tpl_vars[$_key],'array');
                    }
                    if($merge && is_array($_val)) {
                        foreach($_val as $_mkey => $_mval) {
                            $this->_tpl_vars[$_key][$_mkey] = $_mval;
                        }
                    } else {
                        $this->_tpl_vars[$_key][] = $_val;
                    }
                }
            }
        } else {
            if ($tpl_var != '' && isset($value)) {
                if(!@is_array($this->_tpl_vars[$tpl_var])) {
                    settype($this->_tpl_vars[$tpl_var],'array');
                }
                if($merge && is_array($value)) {
                    foreach($value as $_mkey => $_mval) {
                        $this->_tpl_vars[$tpl_var][$_mkey] = $_mval;
                    }
                } else {
                    $this->_tpl_vars[$tpl_var][] = $value;
                }
            }
        }
    }

    /**
     * appends values to template variables by reference
     *
     * @param string $tpl_var the template variable name
     * @param mixed $value the referenced value to append
     */
    function append_by_ref($tpl_var, &$value, $merge=false)
    {
        if ($tpl_var != '' && isset($value)) {
            if(!@is_array($this->_tpl_vars[$tpl_var])) {
             settype($this->_tpl_vars[$tpl_var],'array');
            }
            if ($merge && is_array($value)) {
                foreach($value as $_key => $_val) {
                    $this->_tpl_vars[$tpl_var][$_key] = &$value[$_key];
                }
            } else {
                $this->_tpl_vars[$tpl_var][] = &$value;
            }
        }
    }

    /**
     * clear the given assigned template variable.
     *
     * @param string $tpl_var the template variable to clear
     */
    function clear_assign($tpl_var)
    {
        if (is_array($tpl_var))
            foreach ($tpl_var as $curr_var)
                unset($this->_tpl_vars[$curr_var]);
        else
            unset($this->_tpl_vars[$tpl_var]);
    }

    /**
     * Registers custom function to be used in templates
     *
     * @param string $function the name of the template function
     * @param string $function_impl the name of the PHP function to register
     */
    function register_function($function, $function_impl, $cacheable=true, $cache_attrs=null)
    {
        $this->_plugins['function'][$function] =
            array($function_impl, null, null, false, $cacheable, $cache_attrs);

    }

    /**
     * Unregisters custom function
     *
     * @param string $function name of template function
     */
    function unregister_function($function)
    {
        unset($this->_plugins['function'][$function]);
    }

    /**
     * Registers compiler function
     *
     * @param string $function name of template function
     * @param string $function_impl name of PHP function to register
     */
    function register_compiler_function($function, $function_impl, $cacheable=true)
    {
        $this->_plugins['compiler'][$function] =
            array($function_impl, null, null, false, $cacheable);
    }

    /**
     * Unregisters compiler function
     *
     * @param string $function name of template function
     */
    function unregister_compiler_function($function)
    {
        unset($this->_plugins['compiler'][$function]);
    }

    /**
     * Registers modifier to be used in templates
     *
     * @param string $modifier name of template modifier
     * @param string $modifier_impl name of PHP function to register
     */
    function register_modifier($modifier, $modifier_impl)
    {
        $this->_plugins['modifier'][$modifier] =
            array($modifier_impl, null, null, false);
    }

    /**
     * Unregisters modifier
     *
     * @param string $modifier name of template modifier
     */
    function unregister_modifier($modifier)
    {
        unset($this->_plugins['modifier'][$modifier]);
    }

    /**
     * Registers a resource to fetch a template
     *
     * @param string $type name of resource
     * @param array $functions array of functions to handle resource
     */
    function register_resource($type, $functions)
    {
        if (count($functions)==4) {
            $this->_plugins['resource'][$type] =
                array($functions, false);

        } elseif (count($functions)==5) {
            $this->_plugins['resource'][$type] =
                array(array(array(&$functions[0], $functions[1])
                            ,array(&$functions[0], $functions[2])
                            ,array(&$functions[0], $functions[3])
                            ,array(&$functions[0], $functions[4]))
                      ,false);

        } else {
            $this->trigger_error("malformed function-list for '$type' in register_resource");

        }
    }

    /**
     * Unregisters a resource
     *
     * @param string $type name of resource
     */
    function unregister_resource($type)
    {
        unset($this->_plugins['resource'][$type]);
    }

    /**
     * Registers a prefilter function to apply
     * to a template before compiling
     *
     * @param string $function name of PHP function to register
     */
    function register_prefilter($function)
    {
    $_name = (is_array($function)) ? $function[1] : $function;
        $this->_plugins['prefilter'][$_name]
            = array($function, null, null, false);
    }

    /**
     * Unregisters a prefilter function
     *
     * @param string $function name of PHP function
     */
    function unregister_prefilter($function)
    {
        unset($this->_plugins['prefilter'][$function]);
    }

    /**
     * load a filter of specified type and name
     *
     * @param string $type filter type
     * @param string $name filter name
     */
    function load_filter($type, $name)
    {
        switch ($type) {
            case 'pre':
                if (!isset($this->_plugins[$type . 'filter'][$name]))
                    $this->_plugins[$type . 'filter'][$name] = false;
                break;
        }
    }

    /**
     * clear cached content for the given template and cache id
     *
     * @param string $tpl_file name of template file
     * @param string $cache_id name of cache_id
     * @param string $compile_id name of compile_id
     * @param string $exp_time expiration time
     * @return boolean
     */
    function clear_cache($tpl_file = null, $cache_id = null, $compile_id = null, $exp_time = null)
    {

        if (!isset($compile_id))
            $compile_id = $this->compile_id;

        if (!isset($tpl_file))
            $compile_id = null;

        $_auto_id = $this->_get_auto_id($cache_id, $compile_id);

        $_params = array('auto_base' => $this->cache_dir,
                         'auto_source' => $tpl_file,
                         'auto_id' => $_auto_id,
                         'exp_time' => $exp_time);
        require_once(SMARTY_CORE_DIR . 'core.rm_auto.php');
        return smarty_core_rm_auto($_params, $this);
    }

    /**
     * clear the entire contents of cache (all templates)
     *
     * @param string $exp_time expire time
     * @return boolean results of {@link smarty_core_rm_auto()}
     */
    function clear_all_cache($exp_time = null)
    {
        clear_compiled_files();
        clear_cache_files();
    }

    /**
     * test to see if valid cache exists for this template
     *
     * @param string $tpl_file name of template file
     * @param string $cache_id
     * @param string $compile_id
     * @return string|false results of {@link _read_cache_file()}
     */
    function is_cached($tpl_file, $cache_id = null, $compile_id = null)
    {
        if (!$this->caching)
            return false;

        if (!isset($compile_id))
            $compile_id = $this->compile_id;

        $_params = array(
            'tpl_file' => $tpl_file,
            'cache_id' => $cache_id,
            'compile_id' => $compile_id
        );
        return smarty_core_read_cache_file($_params, $this);
    }

    /**
     * clear all the assigned template variables.
     *
     */
    function clear_all_assign()
    {
        $this->_tpl_vars = array();
    }

    /**
     * clears compiled version of specified template resource,
     * or all compiled template files if one is not specified.
     * This function is for advanced use only, not normally needed.
     *
     * @param string $tpl_file
     * @param string $compile_id
     * @param string $exp_time
     * @return boolean results of {@link smarty_core_rm_auto()}
     */
    function clear_compiled_tpl($tpl_file = null, $compile_id = null, $exp_time = null)
    {
        if (!isset($compile_id)) {
            $compile_id = $this->compile_id;
        }
        $_params = array('auto_base' => $this->compile_dir,
                        'auto_source' => $tpl_file,
                        'auto_id' => $compile_id,
                        'exp_time' => $exp_time,
                        'extensions' => array('.inc', '.php'));
        require_once(SMARTY_CORE_DIR . 'core.rm_auto.php');
        return smarty_core_rm_auto($_params, $this);
    }

    /**
     * Checks whether requested template exists.
     *
     * @param string $tpl_file
     * @return boolean
     */
    function template_exists($tpl_file)
    {
        $_params = array('resource_name' => $tpl_file, 'quiet'=>true, 'get_source'=>false);
        return $this->_fetch_resource_info($_params);
    }

    /**
     * Returns an array containing template variables
     *
     * @param string $name
     * @param string $type
     * @return array
     */
    function &get_template_vars($name=null)
    {
        if(!isset($name)) {
            return $this->_tpl_vars;
        } elseif(isset($this->_tpl_vars[$name])) {
            return $this->_tpl_vars[$name];
        } else {
            // var non-existant, return valid reference
            $_tmp = null;
            return $_tmp;
        }
    }

    /**
     * Returns an array containing config variables
     *
     * @param string $name
     * @param string $type
     * @return array
     */
    function &get_config_vars($name=null)
    {
        if(!isset($name) && is_array($this->_config[0])) {
            return $this->_config[0]['vars'];
        } else if(isset($this->_config[0]['vars'][$name])) {
            return $this->_config[0]['vars'][$name];
        } else {
            // var non-existant, return valid reference
            $_tmp = null;
            return $_tmp;
        }
    }

    /**
     * trigger Smarty error
     *
     * @param string $error_msg
     * @param integer $error_type
     */
    function trigger_error($error_msg, $error_type = E_USER_WARNING)
    {
        trigger_error("Smarty error: $error_msg", $error_type);
    }

    /**
     * executes & displays the template results
     *
     * @param string $resource_name
     * @param string $cache_id
     * @param string $compile_id
     */
    function display($resource_name, $cache_id = null, $compile_id = null)
    {
        header("content-type:text/html; charset=utf-8");
        $this->fetch($resource_name, $cache_id, $compile_id, true);
    }

    /**
     * executes & returns or displays the template results
     *
     * @param string $resource_name
     * @param string $cache_id
     * @param string $compile_id
     * @param boolean $display
     */
    function fetch($resource_name, $cache_id = null, $compile_id = null, $display = false)
    {
        static $_cache_info = array();

        $_smarty_old_error_level = error_reporting(error_reporting() & ~E_NOTICE);

        if (!isset($compile_id)) {
            $compile_id = $this->compile_id;
        }

        $this->_compile_id = $compile_id;
        $this->_inclusion_depth = 0;

        if ($this->caching) {
            // save old cache_info, initialize cache_info
            array_push($_cache_info, $this->_cache_info);
            $this->_cache_info = array();
            $_params = array(
                'tpl_file' => $resource_name,
                'cache_id' => $cache_id,
                'compile_id' => $compile_id,
                'results' => null
            );
            if (smarty_core_read_cache_file($_params, $this)) {
                $_smarty_results = $_params['results'];
                if (!empty($this->_cache_info['insert_tags'])) {
                    $_params = array('plugins' => $this->_cache_info['insert_tags']);
                    smarty_core_load_plugins($_params, $this);
                    $_params = array('results' => $_smarty_results);
                    $_smarty_results = smarty_core_process_cached_inserts($_params, $this);
                }
                if (!empty($this->_cache_info['cache_serials'])) {
                    $_params = array('results' => $_smarty_results);
                    $_smarty_results = smarty_core_process_compiled_include($_params, $this);
                }

                if ($display) {
                    if ($this->cache_modified_check) {
                        $_server_vars = ($this->request_use_auto_globals) ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS'];
                        $_last_modified_date = @substr($_server_vars['HTTP_IF_MODIFIED_SINCE'], 0, strpos($_server_vars['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
                        $_gmt_mtime = gmdate('D, d M Y H:i:s', $this->_cache_info['timestamp']).' GMT';
                        if (@count($this->_cache_info['insert_tags']) == 0
                            && !$this->_cache_serials
                            && $_gmt_mtime == $_last_modified_date) {
                            if (php_sapi_name()=='cgi')
                                header('Status: 304 Not Modified');
                            else
                                header('HTTP/1.1 304 Not Modified');

                        } else {
                            header('Last-Modified: '.$_gmt_mtime);
                            echo $_smarty_results;
                        }
                    } else {
                            echo $_smarty_results;
                    }
                    error_reporting($_smarty_old_error_level);
                    // restore initial cache_info
                    $this->_cache_info = array_pop($_cache_info);
                    return true;
                } else {
                    error_reporting($_smarty_old_error_level);
                    // restore initial cache_info
                    $this->_cache_info = array_pop($_cache_info);
                    return $_smarty_results;
                }
            } else {
                $this->_cache_info['template'][$resource_name] = true;
                if ($this->cache_modified_check && $display) {
                    header('Last-Modified: '.gmdate('D, d M Y H:i:s', time()).' GMT');
                }
            }
        }

        // load filters that are marked as autoload
        if (count($this->autoload_filters)) {
            foreach ($this->autoload_filters as $_filter_type => $_filters) {
                foreach ($_filters as $_filter) {
                    $this->load_filter($_filter_type, $_filter);
                }
            }
        }

        $_smarty_compile_path = $this->_get_compile_path($resource_name);

        // if we just need to display the results, don't perform output
        // buffering - for speed
        $_cache_including = $this->_cache_including;
        $this->_cache_including = false;
        if ($display && !$this->caching) {
            if ($this->_is_compiled($resource_name, $_smarty_compile_path)
                    || $this->_compile_resource($resource_name, $_smarty_compile_path))
            {
                include($_smarty_compile_path);
            }
        } else {
            ob_start();
            if ($this->_is_compiled($resource_name, $_smarty_compile_path)
                    || $this->_compile_resource($resource_name, $_smarty_compile_path))
            {
                include($_smarty_compile_path);
            }
            $_smarty_results = ob_get_contents();
            ob_end_clean();
        }

        if ($this->caching) {
            $_params = array('tpl_file' => $resource_name,
                        'cache_id' => $cache_id,
                        'compile_id' => $compile_id,
                        'results' => $_smarty_results);
            smarty_core_write_cache_file($_params, $this);
            $_smarty_results = smarty_core_process_cached_inserts($_params, $this);

            if ($this->_cache_serials) {
                // strip nocache-tags from output
                $_smarty_results = preg_replace('!(\{/?nocache\:[0-9a-f]{32}#\d+\})!s'
                                                ,''
                                                ,$_smarty_results);
            }
            // restore initial cache_info
            $this->_cache_info = array_pop($_cache_info);
        }
        $this->_cache_including = $_cache_including;

        if ($display) {
            if (isset($_smarty_results)) { echo $_smarty_results; }
            error_reporting($_smarty_old_error_level);
            return;
        } else {
            error_reporting($_smarty_old_error_level);
            if (isset($_smarty_results)) { return $_smarty_results; }
        }
    }

    /**
     * get filepath of requested plugin
     *
     * @param string $type
     * @param string $name
     * @return string|false
     */
    function _get_plugin_filepath($type, $name)
    {
        return smarty_core_assemble_plugin_filepath(array('type' => $type, 'name' => $name), $this);
    }

   /**
     * test if resource needs compiling
     *
     * @param string $resource_name
     * @param string $compile_path
     * @return boolean
     */
    function _is_compiled($resource_name, $compile_path)
    {
        $filetime = @filemtime($compile_path);
        if (!$this->force_compile && $filetime > 0)
        {
            if (!$this->compile_check) {
                // no need to check compiled file
                return true;
            } else {
                // get file source and timestamp
                $_params = array('resource_name' => $resource_name, 'get_source'=>false);
                if (!$this->_fetch_resource_info($_params)) {
                    return false;
                }
                if ($_params['resource_timestamp'] <= filemtime($compile_path)) {
                    // template not expired, no recompile
                    return true;
                } else {
                    // compile template
                    return false;
                }
            }
        } else {
            // compiled template does not exist, or forced compile
            return false;
        }
    }

   /**
     * compile the template
     *
     * @param string $resource_name
     * @param string $compile_path
     * @return boolean
     */
    function _compile_resource($resource_name, $compile_path)
    {

        $_params = array('resource_name' => $resource_name);
        if (!$this->_fetch_resource_info($_params)) {
            return false;
        }

        $_source_content = $_params['source_content'];
        $_cache_include    = substr($compile_path, 0, -4).'.inc';

        if ($this->_compile_source($resource_name, $_source_content, $_compiled_content, $_cache_include)) {
            // if a _cache_serial was set, we also have to write an include-file:
            if ($this->_cache_include_info) {
                smarty_core_write_compiled_include(array_merge($this->_cache_include_info, array('compiled_content'=>$_compiled_content, 'resource_name'=>$resource_name)),  $this);
            }

            $_params = array('compile_path'=>$compile_path, 'compiled_content' => $_compiled_content);
            smarty_core_write_compiled_resource($_params, $this);

            return true;
        } else {
            return false;
        }

    }

   /**
     * compile the given source
     *
     * @param string $resource_name
     * @param string $source_content
     * @param string $compiled_content
     * @return boolean
     */
    function _compile_source($resource_name, &$source_content, &$compiled_content, $cache_include_path=null)
    {
        if (file_exists(SMARTY_DIR . $this->compiler_file)) {
            require_once(SMARTY_DIR . $this->compiler_file);
        } else {
            // use include_path
            require_once($this->compiler_file);
        }

        $smarty_compiler = new $this->compiler_class;

        $smarty_compiler->template_dir      = $this->template_dir;
        $smarty_compiler->compile_dir       = $this->compile_dir;
        $smarty_compiler->plugins_dir       = $this->plugins_dir;
        $smarty_compiler->force_compile     = $this->force_compile;
        $smarty_compiler->caching           = $this->caching;
        $smarty_compiler->php_handling      = $this->php_handling;
        $smarty_compiler->_version          = $this->_version;
        $smarty_compiler->_plugins          = &$this->_plugins;
        $smarty_compiler->_tpl_vars         = &$this->_tpl_vars;
        $smarty_compiler->default_modifiers = $this->default_modifiers;
        $smarty_compiler->compile_id        = $this->_compile_id;
        $smarty_compiler->_config            = $this->_config;
        $smarty_compiler->request_use_auto_globals  = $this->request_use_auto_globals;

        if (isset($cache_include_path) && isset($this->_cache_serials[$cache_include_path])) {
            $smarty_compiler->_cache_serial = $this->_cache_serials[$cache_include_path];
        }
        $smarty_compiler->_cache_include = $cache_include_path;

        $_results = $smarty_compiler->_compile_file($resource_name, $source_content, $compiled_content);

        if ($smarty_compiler->_cache_serial) {
            $this->_cache_include_info = array(
                'cache_serial'=>$smarty_compiler->_cache_serial
                ,'plugins_code'=>$smarty_compiler->_plugins_code
                ,'include_file_path' => $cache_include_path);

        } else {
            $this->_cache_include_info = null;

        }

        return $_results;
    }

    /**
     * Get the compile path for this resource
     *
     * @param string $resource_name
     * @return string results of {@link _get_auto_filename()}
     */
    function _get_compile_path($resource_name)
    {
        return $this->_get_auto_filename($this->compile_dir, $resource_name,
                                         $this->_compile_id) . '.php';
    }

    /**
     * fetch the template info. Gets timestamp, and source
     * if get_source is true
     *
     * sets $source_content to the source of the template, and
     * $resource_timestamp to its time stamp
     * @param string $resource_name
     * @param string $source_content
     * @param integer $resource_timestamp
     * @param boolean $get_source
     * @param boolean $quiet
     * @return boolean
     */

    function _fetch_resource_info(&$params)
    {
        if(!isset($params['get_source'])) { $params['get_source'] = true; }
        if(!isset($params['quiet'])) { $params['quiet'] = false; }

        $_return = false;
        $_params = array('resource_name' => $params['resource_name']) ;
        if (isset($params['resource_base_path']))
            $_params['resource_base_path'] = $params['resource_base_path'];
        else
            $_params['resource_base_path'] = $this->template_dir;

        if ($this->_parse_resource_name($_params)) {
            $_resource_type = $_params['resource_type'];
            $_resource_name = $_params['resource_name'];
            switch ($_resource_type) {
                case 'file':
                    if ($params['get_source']) {
                        $params['source_content'] = @file_get_contents($_resource_name);
                    }
                    if (!empty($_params['resource_timestamp']))
                    {
                        $params['resource_timestamp'] = $_params['resource_timestamp'];
                        $_return = $params['resource_timestamp'] > 0;
                    }
                    else
                    {
                        $params['resource_timestamp'] = @filemtime($_resource_name);
                        $_return = $params['resource_timestamp'] > 0;
                    }
                    break;

                default:
                    // call resource functions to fetch the template source and timestamp
                    if ($params['get_source']) {
                        $_source_return = isset($this->_plugins['resource'][$_resource_type]) &&
                            call_user_func_array($this->_plugins['resource'][$_resource_type][0][0],
                                                 array($_resource_name, &$params['source_content'], &$this));
                    } else {
                        $_source_return = true;
                    }

                    $_timestamp_return = isset($this->_plugins['resource'][$_resource_type]) &&
                        call_user_func_array($this->_plugins['resource'][$_resource_type][0][1],
                                             array($_resource_name, &$params['resource_timestamp'], &$this));

                    $_return = $_source_return && $_timestamp_return;
                    break;
            }
        }

        if (!$_return) {
            // see if we can get a template with the default template handler
            if (!empty($this->default_template_handler_func)) {
                if (!is_callable($this->default_template_handler_func)) {
                    $this->trigger_error("default template handler function \"$this->default_template_handler_func\" doesn't exist.");
                } else {
                    $_return = call_user_func_array(
                        $this->default_template_handler_func,
                        array($_params['resource_type'], $_params['resource_name'], &$params['source_content'], &$params['resource_timestamp'], &$this));
                }
            }
        }

        if (!$_return) {
            if (!$params['quiet']) {
                $this->trigger_error('unable to read resource: "' . $params['resource_name'] . '"');
            }
        }
        return $_return;
    }

    /**
     * parse out the type and name from the resource
     *
     * @param string $resource_base_path
     * @param string $resource_name
     * @param string $resource_type
     * @param string $resource_name
     * @return boolean
     */

    function _parse_resource_name(&$params)
    {
        // split tpl_path by the first colon
        $_resource_name_parts = explode(':', $params['resource_name'], 2);

        if (count($_resource_name_parts) == 1) {
            // no resource type given
            $params['resource_type'] = $this->default_resource_type;
            $params['resource_name'] = $_resource_name_parts[0];
        } else {
            if(strlen($_resource_name_parts[0]) == 1) {
                // 1 char is not resource type, but part of filepath
                $params['resource_type'] = $this->default_resource_type;
                $params['resource_name'] = $params['resource_name'];
            } else {
                $params['resource_type'] = $_resource_name_parts[0];
                $params['resource_name'] = $_resource_name_parts[1];
            }
        }

        if ($params['resource_type'] == 'file') {
            if (!preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $params['resource_name'])) {
                // relative pathname to $params['resource_base_path']
                // use the first directory where the file is found
                foreach ((array)$params['resource_base_path'] as $_curr_path) {
                    $_fullpath = $_curr_path . DIRECTORY_SEPARATOR . $params['resource_name'];
                    $filetime = @filemtime($_fullpath);
                    if ($filetime)
                    {
                        $params['resource_name'] = $_fullpath;
                        $params['resource_timestamp'] = $filetime;
                        return true;
                    }
                    else
                    {
                        $params['resource_timestamp'] = 0;
                    }
                    // didn't find the file, try include_path
                    $_params = array('file_path' => $_fullpath);
                    require_once(SMARTY_CORE_DIR . 'core.get_include_path.php');
                    if(smarty_core_get_include_path($_params, $this)) {
                        $params['resource_name'] = $_params['new_file_path'];
                        return true;
                    }
                }
                return false;
            } else {
                /* absolute path */
                return file_exists($params['resource_name']);
            }
        } elseif (empty($this->_plugins['resource'][$params['resource_type']])) {
            $_params = array('type' => $params['resource_type']);
            smarty_core_load_resource_plugin($_params, $this);
        }

        return true;
    }

    /**
     * Handle modifiers
     *
     * @param string|null $modifier_name
     * @param array|null $map_array
     * @return string result of modifiers
     */
    function _run_mod_handler()
    {
        $_args = func_get_args();
        list($_modifier_name, $_map_array) = array_splice($_args, 0, 2);
        list($_func_name, $_tpl_file, $_tpl_line) =
            $this->_plugins['modifier'][$_modifier_name];

        $_var = $_args[0];
        foreach ($_var as $_key => $_val) {
            $_args[0] = $_val;
            $_var[$_key] = call_user_func_array($_func_name, $_args);
        }
        return $_var;
    }

    /**
     * Remove starting and ending quotes from the string
     *
     * @param string $string
     * @return string
     */
    function _dequote($string)
    {
        if (($string{0} == "'" || $string{0} == '"') &&
            substr($string, -1) == $string{0})
            return substr($string, 1, -1);
        else
            return $string;
    }

    /**
     * get a concrete filename for automagically created content
     *
     * @param string $auto_base
     * @param string $auto_source
     * @param string $auto_id
     * @return string
     * @staticvar string|null
     * @staticvar string|null
     */
    function _get_auto_filename($auto_base, $auto_source = null, $auto_id = null)
    {
        $_return = $auto_base . DIRECTORY_SEPARATOR;

        if(isset($auto_id)) {
            // make auto_id safe for directory names
            $auto_id = str_replace('%7C', '^', (urlencode($auto_id)));
            // split into separate directories
            $_return .= $auto_id . '^';
        }

        if(isset($auto_source)) {
            // make source name safe for filename
            $_filename = urlencode(basename($auto_source));
            $_crc32 = sprintf('%08X', crc32($auto_source));
            // prepend %% to avoid name conflicts with
            // with $params['auto_id'] names
            $_crc32 = substr($_crc32, 0, 2) . '^' .
                      substr($_crc32, 0, 3) . '^' . $_crc32;
            $_return .= '%%' . $_crc32 . '%%' . $_filename;
        }

        return $_return;
    }

    /**
     * unlink a file, possibly using expiration time
     *
     * @param string $resource
     * @param integer $exp_time
     */
    function _unlink($resource, $exp_time = null)
    {
        static $time = 0;

        if (!$time)
        {
            $time = time();
        }

        if(isset($exp_time)) {
            if($time - @filemtime($resource) >= $exp_time) {
                return @unlink($resource);
            }
        } else {
            return @unlink($resource);
        }
    }

    /**
     * returns an auto_id for auto-file-functions
     *
     * @param string $cache_id
     * @param string $compile_id
     * @return string|null
     */
    function _get_auto_id($cache_id=null, $compile_id=null) {
    if (isset($cache_id))
        return (isset($compile_id)) ? $cache_id . '|' . $compile_id  : $cache_id;
    elseif(isset($compile_id))
        return $compile_id;
    else
        return null;
    }

    /**
     * trigger Smarty plugin error
     *
     * @param string $error_msg
     * @param string $tpl_file
     * @param integer $tpl_line
     * @param string $file
     * @param integer $line
     * @param integer $error_type
     */
    function _trigger_fatal_error($error_msg, $tpl_file = null, $tpl_line = null,
            $file = null, $line = null, $error_type = E_USER_ERROR)
    {
        if(isset($file) && isset($line)) {
            $info = ' ('.basename($file).", line $line)";
        } else {
            $info = '';
        }
        if (isset($tpl_line) && isset($tpl_file)) {
            $this->trigger_error('[in ' . $tpl_file . ' line ' . $tpl_line . "]: $error_msg$info", $error_type);
        } else {
            $this->trigger_error($error_msg . $info, $error_type);
        }
    }

    /**
     * callback function for preg_replace, to call a non-cacheable block
     * @return string
     */
    function _process_compiled_include_callback($match) {
        $_func = '_smarty_tplfunc_'.$match[2].'_'.$match[3];
        ob_start();
        $_func($this);
        $_ret = ob_get_contents();
        ob_end_clean();
        return $_ret;
    }

    /**
     * called for included templates
     *
     * @param string $_smarty_include_tpl_file
     * @param string $_smarty_include_vars
     */

    // $_smarty_include_tpl_file, $_smarty_include_vars

    function _smarty_include($params)
    {
        $this->_tpl_vars = array_merge($this->_tpl_vars, $params['smarty_include_vars']);

        // config vars are treated as local, so push a copy of the
        // current ones onto the front of the stack
        array_unshift($this->_config, $this->_config[0]);

        $_smarty_compile_path = $this->_get_compile_path($params['smarty_include_tpl_file']);

        if ($this->_is_compiled($params['smarty_include_tpl_file'], $_smarty_compile_path)
            || $this->_compile_resource($params['smarty_include_tpl_file'], $_smarty_compile_path))
        {
            include($_smarty_compile_path);
        }

        // pop the local vars off the front of the stack
        array_shift($this->_config);

        $this->_inclusion_depth--;

        if ($this->caching) {
            $this->_cache_info['template'][$params['smarty_include_tpl_file']] = true;
        }
    }

    /**
     * get or set an array of cached attributes for function that is
     * not cacheable
     * @return array
     */
    function &_smarty_cache_attrs($cache_serial, $count) {
        $_cache_attrs =& $this->_cache_info['cache_attrs'][$cache_serial][$count];

        if ($this->_cache_including) {
            /* return next set of cache_attrs */
            $_return = current($_cache_attrs);
            next($_cache_attrs);
            return $_return;

        } else {
            /* add a reference to a new set of cache_attrs */
            $_cache_attrs[] = array();
            return $_cache_attrs[count($_cache_attrs)-1];
        }
    }

    /**
     * wrapper for include() retaining $this
     * @return mixed
     */
    function _include($filename, $once=false, $params=null)
    {
        if ($once) {
            include_once($filename);
        } else {
            include($filename);
        }
    }

    /**
     * wrapper for eval() retaining $this
     * @return mixed
     */
    function _eval($code)
    {
        return eval($code);
    }
    /**#@-*/

}

function smarty_core_assemble_plugin_filepath($params, &$smarty)
{
    static $_filepaths_cache = array();

    if ($params['type'] == 'insert')
    {
        return false;
    }

    $_plugin_filename = $params['type'] . '.' . $params['name'] . '.php';
    if (isset($_filepaths_cache[$_plugin_filename])) {
        return $_filepaths_cache[$_plugin_filename];
    }
    $_return = false;

    foreach ((array)$smarty->plugins_dir as $_plugin_dir) {

        $_plugin_filepath = $_plugin_dir . DIRECTORY_SEPARATOR . $_plugin_filename;

        // see if path is relative
        if (!preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $_plugin_dir)) {
            $_relative_paths[] = $_plugin_dir;
            // relative path, see if it is in the SMARTY_DIR
            if (@is_readable(SMARTY_DIR . $_plugin_filepath)) {
                $_return = SMARTY_DIR . $_plugin_filepath;
                break;
            }
        }
        // try relative to cwd (or absolute)
        if (@is_readable($_plugin_filepath)) {
            $_return = $_plugin_filepath;
            break;
        }
    }

    $_filepaths_cache[$_plugin_filename] = $_return;
    return $_return;
}

function smarty_core_load_resource_plugin($params, &$smarty)
{
    /*
     * Resource plugins are not quite like the other ones, so they are
     * handled differently. The first element of plugin info is the array of
     * functions provided by the plugin, the second one indicates whether
     * all of them exist or not.
     */

    $_plugin = &$smarty->_plugins['resource'][$params['type']];
    if (isset($_plugin)) {
        if (!$_plugin[1] && count($_plugin[0])) {
            $_plugin[1] = true;
            foreach ($_plugin[0] as $_plugin_func) {
                if (!is_callable($_plugin_func)) {
                    $_plugin[1] = false;
                    break;
                }
            }
        }

        if (!$_plugin[1]) {
            $smarty->_trigger_fatal_error("[plugin] resource '" . $params['type'] . "' is not implemented", null, null, __FILE__, __LINE__);
        }

        return;
    }

    $_plugin_file = $smarty->_get_plugin_filepath('resource', $params['type']);
    $_found = ($_plugin_file != false);

    if ($_found) {            /*
         * If the plugin file is found, it -must- provide the properly named
         * plugin functions.
         */
        include_once($_plugin_file);

        /*
         * Locate functions that we require the plugin to provide.
         */
        $_resource_ops = array('source', 'timestamp', 'secure', 'trusted');
        $_resource_funcs = array();
        foreach ($_resource_ops as $_op) {
            $_plugin_func = 'smarty_resource_' . $params['type'] . '_' . $_op;
            if (!function_exists($_plugin_func)) {
                $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", null, null, __FILE__, __LINE__);
                return;
            } else {
                $_resource_funcs[] = $_plugin_func;
            }
        }

        $smarty->_plugins['resource'][$params['type']] = array($_resource_funcs, true);
    }
}

function smarty_core_process_compiled_include($params, &$smarty)
{
    $_cache_including = $smarty->_cache_including;
    $smarty->_cache_including = true;

    $_return = $params['results'];

    foreach ($smarty->_cache_info['cache_serials'] as $_include_file_path=>$_cache_serial) {
        include_once($_include_file_path);
    }

    foreach ($smarty->_cache_serials as $_include_file_path=>$_cache_serial) {
        $_return = preg_replace_callback('!(\{nocache\:('.$_cache_serial.')#(\d+)\})!s',
                                         array(&$smarty, '_process_compiled_include_callback'),
                                         $_return);
    }
    $smarty->_cache_including = $_cache_including;
    return $_return;
}

function smarty_core_process_cached_inserts($params, &$smarty)
{
    if (strstr($params['results'], 'insert_cache'))
    {
        preg_match_all('!'.$smarty->_smarty_md5.'{insert_cache (.*)}'.$smarty->_smarty_md5.'!Uis',
                       $params['results'], $match);
        list($cached_inserts, $insert_args) = $match;
    }
    else
    {
        return $params['results'];
    }

    for ($i = 0, $for_max = count($cached_inserts); $i < $for_max; $i++)
    {
        $args = unserialize($insert_args[$i]);
        $name = $args['name'];

        if (isset($args['script'])) {
            $_params = array('resource_name' => $smarty->_dequote($args['script']));
            if(!smarty_core_get_php_resource($_params, $smarty)) {
                return false;
            }
            $resource_type = $_params['resource_type'];
            $php_resource = $_params['php_resource'];

            if ($resource_type == 'file') {
                include_once($php_resource);
            } else {
                $smarty->_eval($php_resource);
            }
        }

        $function_name = $smarty->_plugins['insert'][$name][0];
        if (empty($args['assign'])) {
            $replace = $function_name($args, $smarty);
        } else {
            $smarty->assign($args['assign'], $function_name($args, $smarty));
            $replace = '';
        }

        $params['results'] = substr_replace($params['results'], $replace, strpos($params['results'], $cached_inserts[$i]), strlen($cached_inserts[$i]));
    }

    return $params['results'];
}

function smarty_core_get_php_resource(&$params, &$smarty)
{
    $smarty->_parse_resource_name($params, $smarty);

    /*
     * Find out if the resource exists.
     */

    if ($params['resource_type'] == 'file') {
        $_readable = false;
        if(is_readable($params['resource_name'])) {
            $_readable = true;
        } else {
            // test for file in include_path
            $_params = array('file_path' => $params['resource_name']);
            require_once(SMARTY_CORE_DIR . 'core.get_include_path.php');
            if(smarty_core_get_include_path($_params, $smarty)) {
                $_include_path = $_params['new_file_path'];
                $_readable = true;
            }
        }
    } else if ($params['resource_type'] != 'file') {
        $_template_source = null;
        $_readable = is_callable($smarty->_plugins['resource'][$params['resource_type']][0][0])
            && call_user_func_array($smarty->_plugins['resource'][$params['resource_type']][0][0],
                                    array($params['resource_name'], &$_template_source, &$smarty));
    }

    /*
     * Set the error function, depending on which class calls us.
     */
    if (method_exists($smarty, '_syntax_error')) {
        $_error_funcc = '_syntax_error';
    } else {
        $_error_funcc = 'trigger_error';
    }

    if ($_readable) {
    } else {
        $smarty->$_error_funcc($params['resource_type'] . ':' . $params['resource_name'] . ' is not readable');
        return false;
    }

    if ($params['resource_type'] == 'file') {
        $params['php_resource'] = $params['resource_name'];
    } else {
        $params['php_resource'] = $_template_source;
    }
    return true;
}

function smarty_core_read_cache_file(&$params, &$smarty)
{
    static $content_cache = array();

    if ($smarty->force_compile) {
        // force compile enabled, always regenerate
        return false;
    }

    if (isset($content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']])) {
        list($params['results'], $smarty->_cache_info) = $content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']];
        return true;
    }

    // use local cache file
    $_auto_id = $smarty->_get_auto_id($params['cache_id'], $params['compile_id']);
    $_cache_file = $smarty->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id);
    $params['results'] = @file_get_contents($_cache_file);

    if (empty($params['results'])) {
        // nothing to parse (error?), regenerate cache
        return false;
    }

    $_contents = $params['results'];
    $_info_start = strpos($_contents, "\n") + 1;
    $_info_len = (int)substr($_contents, 0, $_info_start - 1);
    $_cache_info = unserialize(substr($_contents, $_info_start, $_info_len));
    $params['results'] = substr($_contents, $_info_start + $_info_len);

    if ($smarty->caching == 2 && isset ($_cache_info['expires'])){
        // caching by expiration time
        if ($_cache_info['expires'] > -1 && (time() > $_cache_info['expires'])) {
            // cache expired, regenerate
            return false;
        }
    } else {
        // caching by lifetime
        if ($smarty->cache_lifetime > -1 && (time() - $_cache_info['timestamp'] > $smarty->cache_lifetime)) {
            // cache expired, regenerate
            return false;
        }
    }

    if ($smarty->compile_check) {
        $_params = array('get_source' => false, 'quiet'=>true);
        foreach (array_keys($_cache_info['template']) as $_template_dep) {
            $_params['resource_name'] = $_template_dep;
            if (!$smarty->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) {
                // template file has changed, regenerate cache
                return false;
            }
        }
    }
    $content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']] = array($params['results'], $_cache_info);

    $smarty->_cache_info = $_cache_info;
    return true;
}

function smarty_core_load_plugins($params, &$smarty)
{

    foreach ($params['plugins'] as $_plugin_info) {
        list($_type, $_name, $_tpl_file, $_tpl_line, $_delayed_loading) = $_plugin_info;
        $_plugin = &$smarty->_plugins[$_type][$_name];

        /*
         * We do not load plugin more than once for each instance of Smarty.
         * The following code checks for that. The plugin can also be
         * registered dynamically at runtime, in which case template file
         * and line number will be unknown, so we fill them in.
         *
         * The final element of the info array is a flag that indicates
         * whether the dynamically registered plugin function has been
         * checked for existence yet or not.
         */
        if (isset($_plugin)) {
            if (empty($_plugin[3])) {
                if (!is_callable($_plugin[0])) {
                    $smarty->_trigger_fatal_error("[plugin] $_type '$_name' is not implemented", $_tpl_file, $_tpl_line, __FILE__, __LINE__);
                } else {
                    $_plugin[1] = $_tpl_file;
                    $_plugin[2] = $_tpl_line;
                    $_plugin[3] = true;
                    if (!isset($_plugin[4])) $_plugin[4] = true; /* cacheable */
                }
            }
            continue;
        } else if ($_type == 'insert') {
            /*
             * For backwards compatibility, we check for insert functions in
             * the symbol table before trying to load them as a plugin.
             */
            $_plugin_func = 'insert_' . $_name;
            if (function_exists($_plugin_func)) {
                $_plugin = array($_plugin_func, $_tpl_file, $_tpl_line, true, false);
                continue;
            }
        }

        $_plugin_file = $smarty->_get_plugin_filepath($_type, $_name);

        if (! $_found = ($_plugin_file != false)) {
            $_message = "could not load plugin file '$_type.$_name.php'\n";
        }

        /*
         * If plugin file is found, it -must- provide the properly named
         * plugin function. In case it doesn't, simply output the error and
         * do not fall back on any other method.
         */
        if ($_found) {
            include_once $_plugin_file;

            $_plugin_func = 'smarty_' . $_type . '_' . $_name;
            if (!function_exists($_plugin_func)) {
                $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", $_tpl_file, $_tpl_line, __FILE__, __LINE__);
                continue;
            }
        }
        /*
         * In case of insert plugins, their code may be loaded later via
         * 'script' attribute.
         */
        else if ($_type == 'insert' && $_delayed_loading) {
            $_plugin_func = 'smarty_' . $_type . '_' . $_name;
            $_found = true;
        }

        /*
         * Plugin specific processing and error checking.
         */
        if (!$_found) {
            if ($_type == 'modifier') {
                if (!function_exists($_name)) {
                    $_message = "modifier '$_name' is not implemented";
                } else {
                    $_plugin_func = $_name;
                    $_found = true;
                }
            } else if ($_type == 'function') {
                /*
                 * This is a catch-all situation.
                 */
                $_message = "unknown tag - '$_name'";
            }
        }

        if ($_found) {
            $smarty->_plugins[$_type][$_name] = array($_plugin_func, $_tpl_file, $_tpl_line, true, true);
        } else {
            // output error
            $smarty->_trigger_fatal_error('[plugin] ' . $_message, $_tpl_file, $_tpl_line, __FILE__, __LINE__);
        }
    }
}

function smarty_core_get_microtime($params, &$smarty)
{
    $mtime = microtime();
    $mtime = explode(' ', $mtime);
    $mtime = (double)($mtime[1]) + (double)($mtime[0]);

    return ($mtime);
}

function smarty_core_write_cache_file($params, &$smarty)
{
    // put timestamp in cache header
    $smarty->_cache_info['timestamp'] = time();
    if ($smarty->cache_lifetime > -1){
        // expiration set
        $smarty->_cache_info['expires'] = $smarty->_cache_info['timestamp'] + $smarty->cache_lifetime;
    } else {
        // cache will never expire
        $smarty->_cache_info['expires'] = -1;
    }

    // collapse nocache.../nocache-tags
    if (strstr($params['results'], 'nocache:') && preg_match_all('!\{(/?)nocache\:[0-9a-f]{32}#\d+\}!', $params['results'], $match, PREG_PATTERN_ORDER)) {
        // remove everything between every pair of outermost noache.../nocache-tags
        // and replace it by a single nocache-tag
        // this new nocache-tag will be replaced by dynamic contents in
        // smarty_core_process_compiled_includes() on a cache-read
        
        $match_count = count($match[0]);
        $results = preg_split('!(\{/?nocache\:[0-9a-f]{32}#\d+\})!', $params['results'], -1, PREG_SPLIT_DELIM_CAPTURE);
        
        $level = 0;
        $j = 0;
        for ($i=0, $results_count = count($results); $i < $results_count && $j < $match_count; $i++) {
            if ($results[$i] == $match[0][$j]) {
                // nocache tag
                if ($match[1][$j]) { // closing tag
                    $level--;
                    unset($results[$i]);
                } else { // opening tag
                    if ($level++ > 0) unset($results[$i]);
                }
                $j++;
            } elseif ($level > 0) {
                unset($results[$i]);
            }
        }
        $params['results'] = implode('', $results);
    }
    $smarty->_cache_info['cache_serials'] = $smarty->_cache_serials;

    // prepend the cache header info into cache file
    $_cache_info = serialize($smarty->_cache_info);
    $params['results'] = strlen($_cache_info) . "\n" . $_cache_info . $params['results'];

    // use local cache file
    if(!@is_writable($smarty->cache_dir)) {
        // cache_dir not writable, see if it exists
        if(!@is_dir($smarty->cache_dir)) {
            $smarty->trigger_error('the $cache_dir \'' . $smarty->cache_dir . '\' does not exist, or is not a directory.', E_USER_ERROR);
            return false;
        }
        $smarty->trigger_error('unable to write to $cache_dir \'' . realpath($smarty->cache_dir) . '\'. Be sure $cache_dir is writable by the web server user.', E_USER_ERROR);

        return false;
    }

    $_auto_id = $smarty->_get_auto_id($params['cache_id'], $params['compile_id']);
    $_cache_file = $smarty->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id);
    $_params = array('filename' => $_cache_file, 'contents' => $params['results'], 'create_dirs' => true);
    smarty_core_write_file($_params, $smarty);

    return true;
}

function smarty_core_write_compiled_include($params, &$smarty)
{
    $_tag_start = 'if \(\$this->caching && \!\$this->_cache_including\) \{ echo \'\{nocache\:('.$params['cache_serial'].')#(\d+)\}\'; \};';
    $_tag_end   = 'if \(\$this->caching && \!\$this->_cache_including\) \{ echo \'\{/nocache\:(\\2)#(\\3)\}\'; \};';

    preg_match_all('!('.$_tag_start.'(.*)'.$_tag_end.')!Us',
                   $params['compiled_content'], $_match_source, PREG_SET_ORDER);

    // no nocache-parts found: done
    if (count($_match_source)==0) return;

    // convert the matched php-code to functions
    $_include_compiled =  '<?php /* Smarty version '.$smarty->_version.', created on '.strftime('%Y-%m-%d %H:%M:%S').', ';
    $_include_compiled .= 'compiled from ' . strtr(urlencode($params['resource_name']), array('%2F'=>'/', '%3A'=>':')) . " */\n\n";

    $_compile_path = $params['include_file_path'];

    $smarty->_cache_serials[$_compile_path] = $params['cache_serial'];
    $_include_compiled .= "\$this->_cache_serials['".$_compile_path."'] = '".$params['cache_serial']."';\n\n?>";

    $_include_compiled .= $params['plugins_code'];
    $_include_compiled .= '<?php';

    $this_varname = ((double)phpversion() >= 5.0) ? '_smarty' : 'this';
    for ($_i = 0, $_for_max = count($_match_source); $_i < $_for_max; $_i++) {
        $_match =& $_match_source[$_i];
        $source = $_match[4];
        if ($this_varname == '_smarty') {
            /* rename $this to $_smarty in the sourcecode */
            $tokens = token_get_all('<?php ' . $_match[4]);

            /* remove trailing <?php */
            $open_tag = '';
            while ($tokens) {
                $token = array_shift($tokens);
                if (is_array($token)) {
                    $open_tag .= $token[1];
                } else {
                    $open_tag .= $token;
                }
                if ($open_tag == '<?php ') break;
            }

            for ($i=0, $count = count($tokens); $i < $count; $i++) {
                if (is_array($tokens[$i])) {
                    if ($tokens[$i][0] == T_VARIABLE && $tokens[$i][1] == '$this') {
                        $tokens[$i] = '$' . $this_varname;
                    } else {
                        $tokens[$i] = $tokens[$i][1];
                    }                   
                }
            }
            $source = implode('', $tokens);
        }

        /* add function to compiled include */
        $_include_compiled .= "
function _smarty_tplfunc_$_match[2]_$_match[3](&\$$this_varname)
{
$source
}

";
    }
    $_include_compiled .= "\n\n?>\n";

    $_params = array('filename' => $_compile_path,
                     'contents' => $_include_compiled, 'create_dirs' => true);

    smarty_core_write_file($_params, $smarty);
    return true;
}

function smarty_core_write_compiled_resource($params, &$smarty)
{
    if(!@is_writable($smarty->compile_dir)) {
        // compile_dir not writable, see if it exists
        if(!@is_dir($smarty->compile_dir)) {
            $smarty->trigger_error('the $compile_dir \'' . $smarty->compile_dir . '\' does not exist, or is not a directory.', E_USER_ERROR);
            return false;
        }
        $smarty->trigger_error('unable to write to $compile_dir \'' . realpath($smarty->compile_dir) . '\'. Be sure $compile_dir is writable by the web server user.', E_USER_ERROR);
        return false;
    }

    $_params = array('filename' => $params['compile_path'], 'contents' => $params['compiled_content'], 'create_dirs' => true);
    smarty_core_write_file($_params, $smarty);
    return true;
}

function smarty_core_write_file($params, &$smarty)
{
    static $OS = NULL;

    if ($OS == NULL)
    {
        $OS = substr(PHP_OS,0,3);
    }

    $_dirname = dirname($params['filename']);

    if ($params['create_dirs']) {
        $_params = array('dir' => $_dirname);
        smarty_core_create_dir_structure($_params, $smarty);
    }

    // write to tmp file, then rename it to avoid file locking race condition
    $_tmp_file = tempnam($_dirname, 'wrt');

    $size = strlen($params['contents']);

    $bytes = file_put_contents($_tmp_file, $params['contents']);

    if ($bytes != $size)
    {
        $_tmp_file = $_dirname . DIRECTORY_SEPARATOR . uniqid('wrt');

        $bytes = file_put_contents($_tmp_file, $params['contents']);
        if ($bytes != $size)
        {
            $smarty->trigger_error("problem writing temporary file '$_tmp_file'");

            return false;
        }
    }

    if ($OS == 'WIN' || !@rename($_tmp_file, $params['filename'])) {
        // On platforms and filesystems that cannot overwrite with rename() 
        // delete the file before renaming it -- because windows always suffers
        // this, it is short-circuited to avoid the initial rename() attempt
        @unlink($params['filename']);
        @rename($_tmp_file, $params['filename']);
    }
    @chmod($params['filename'], $smarty->_file_perms);

    return true;
}

function smarty_core_create_dir_structure($params, &$smarty)
{
    if (!file_exists($params['dir'])) {
        $_open_basedir_ini = ini_get('open_basedir');

        if (DIRECTORY_SEPARATOR=='/') {
            /* unix-style paths */
            $_dir = $params['dir'];
            $_dir_parts = preg_split('!/+!', $_dir, -1, PREG_SPLIT_NO_EMPTY);
            $_new_dir = ($_dir{0} == '/') ? '/' : getcwd().'/';
            if($_use_open_basedir = !empty($_open_basedir_ini)) {
                $_open_basedirs = explode(':', $_open_basedir_ini);
            }

        } else {
            /* other-style paths */
            $_dir = str_replace('\\','/', $params['dir']);
            $_dir_parts = preg_split('!/+!', $_dir, -1, PREG_SPLIT_NO_EMPTY);
            if (preg_match('!^((//)|([a-zA-Z]:/))!', $_dir, $_root_dir)) {
                /* leading "//" for network volume, or "[letter]:/" for full path */
                $_new_dir = $_root_dir[1];
                /* remove drive-letter from _dir_parts */
                if (isset($_root_dir[3])) array_shift($_dir_parts);

            } else {
                $_new_dir = str_replace('\\', '/', getcwd()).'/';

            }

            if($_use_open_basedir = !empty($_open_basedir_ini)) {
                $_open_basedirs = explode(';', str_replace('\\', '/', $_open_basedir_ini));
            }

        }

        /* all paths use "/" only from here */
        foreach ($_dir_parts as $_dir_part) {
            $_new_dir .= $_dir_part;

            if ($_use_open_basedir) {
                // do not attempt to test or make directories outside of open_basedir
                $_make_new_dir = false;
                foreach ($_open_basedirs as $_open_basedir) {
                    if (substr($_new_dir, 0, strlen($_open_basedir)) == $_open_basedir) {
                        $_make_new_dir = true;
                        break;
                    }
                }
            } else {
                $_make_new_dir = true;
            }

            if ($_make_new_dir && !file_exists($_new_dir) && !@mkdir($_new_dir, $smarty->_dir_perms) && !is_dir($_new_dir)) {
                $smarty->trigger_error("problem creating directory '" . $_new_dir . "'");
                return false;
            }
            $_new_dir .= '/';
        }
    }
}

function smarty_core_run_insert_handler($params, &$smarty)
{
    if ($smarty->caching) {
        $_arg_string = serialize($params['args']);
        $_name = $params['args']['name'];
        if (!isset($smarty->_cache_info['insert_tags'][$_name])) {
            $smarty->_cache_info['insert_tags'][$_name] = array('insert',
                                                             $_name,
                                                             $smarty->_plugins['insert'][$_name][1],
                                                             $smarty->_plugins['insert'][$_name][2],
                                                             !empty($params['args']['script']) ? true : false);
        }
        return $smarty->_smarty_md5."{insert_cache $_arg_string}".$smarty->_smarty_md5;
    } else {
        if (isset($params['args']['script'])) {
            $_params = array('resource_name' => $smarty->_dequote($params['args']['script']));
            if(!smarty_core_get_php_resource($_params, $smarty)) {
                return false;
            }

            if ($_params['resource_type'] == 'file') {
                include_once($_params['php_resource']);
            } else {
                $smarty->_eval($_params['php_resource']);
            }
            unset($params['args']['script']);
        }

        $_funcname = $smarty->_plugins['insert'][$params['args']['name']][0];
        $_content = $_funcname($params['args'], $smarty);

        if (!empty($params['args']['assign'])) {
            $smarty->assign($params['args']['assign'], $_content);
        } else {
            return $_content;
        }
    }
}

function smarty_modifier_escape($string, $esc_type = 'html', $char_set = 'ISO-8859-1')
{
    switch ($esc_type) {
        case 'html':
            return htmlspecialchars($string, ENT_QUOTES, $char_set);

        case 'htmlall':
            return htmlentities($string, ENT_QUOTES, $char_set);

        case 'url':
            return rawurlencode($string);

        case 'urlpathinfo':
            return str_replace('%2F','/',rawurlencode($string));
            
        case 'quotes':
            // escape unescaped single quotes
            return preg_replace("%(?<!\\\\)'%", "\\'", $string);

        case 'hex':
            // escape every character into hex
            $return = '';
            for ($x=0, $count = strlen($string); $x < $count; $x++) {
                $return .= '%' . bin2hex($string[$x]);
            }
            return $return;
            
        case 'hexentity':
            $return = '';
            for ($x=0, $count = strlen($string); $x < $count; $x++) {
                $return .= '&#x' . bin2hex($string[$x]) . ';';
            }
            return $return;

        case 'decentity':
            $return = '';
            for ($x=0, $count = strlen($string); $x < $count; $x++) {
                $return .= '&#' . ord($string[$x]) . ';';
            }
            return $return;

        case 'javascript':
            // escape quotes and backslashes, newlines, etc.
            return strtr($string, array('\\'=>'\\\\',"'"=>"\\'",'"'=>'\\"',"\r"=>'\\r',"\n"=>'\\n','</'=>'<\/'));
            
        case 'mail':
            // safe way to display e-mail address on a web page
            return str_replace(array('@', '.'),array(' [AT] ', ' [DOT] '), $string);
            
        case 'nonstd':
           // escape non-standard chars, such as ms document quotes
           $_res = '';
           for ($_i = 0, $_len = strlen($string); $_i < $_len; $_i++) {
               $_ord = ord($string{$_i});
               // non-standard char, escape it
               if($_ord >= 126){
                   $_res .= '&#' . $_ord . ';';
               }
               else {
                   $_res .= $string{$_i};
               }
           }
           return $_res;

        default:
            return $string;
    }
}

?>