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<?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-discussion-subscribe@googlegroups.com

 *

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

 * @copyright 2018 New Digital Group, Inc.

 * @copyright 2018 Uwe Tews

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

 * @author    Uwe Tews   <uwe dot tews at gmail dot com>

 * @author    Rodney Rehm

 * @package   Smarty

 * @version   3.1.34-dev

 */

/**

 * set SMARTY_DIR to absolute path to Smarty library files.

 * Sets SMARTY_DIR only if user application has not already defined it.

 */

if (!defined('SMARTY_DIR')) {

    /**

     *

     */

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

}

/**

 * set SMARTY_SYSPLUGINS_DIR to absolute path to Smarty internal plugins.

 * Sets SMARTY_SYSPLUGINS_DIR only if user application has not already defined it.

 */

if (!defined('SMARTY_SYSPLUGINS_DIR')) {

    /**

     *

     */

    define('SMARTY_SYSPLUGINS_DIR', SMARTY_DIR . 'sysplugins' . DIRECTORY_SEPARATOR);

}

if (!defined('SMARTY_PLUGINS_DIR')) {

    /**

     *

     */

    define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DIRECTORY_SEPARATOR);

}

if (!defined('SMARTY_MBSTRING')) {

    /**

     *

     */

    define('SMARTY_MBSTRING', function_exists('mb_get_info'));

}

if (!defined('SMARTY_RESOURCE_CHAR_SET')) {

    // UTF-8 can only be done properly when mbstring is available!

    /**

     * @deprecated in favor of Smarty::$_CHARSET

     */

    define('SMARTY_RESOURCE_CHAR_SET', SMARTY_MBSTRING ? 'UTF-8' : 'ISO-8859-1');

}

if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {

    /**

     * @deprecated in favor of Smarty::$_DATE_FORMAT

     */

    define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');

}

/**

 * Load Smarty_Autoloader

 */

if (!class_exists('Smarty_Autoloader')) {

    include dirname(__FILE__) . '/bootstrap.php';

}

/**

 * Load always needed external class files

 */

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_data.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_extension_handler.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_templatebase.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_template.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_resource.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_variable.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_template_source.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_template_resource_base.php';

require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_resource_file.php';

/**

 * This is the main Smarty class

 *

 * @package Smarty

 *

 * The following methods will be dynamically loaded by the extension handler when they are called.

 * They are located in a corresponding Smarty_Internal_Method_xxxx class

 *

 * @method int clearAllCache(int $exp_time = null, string $type = null)

 * @method int clearCache(string $template_name, string $cache_id = null, string $compile_id = null, int $exp_time = null, string $type = null)

 * @method int compileAllTemplates(string $extension = '.tpl', bool $force_compile = false, int $time_limit = 0, $max_errors = null)

 * @method int compileAllConfig(string $extension = '.conf', bool $force_compile = false, int $time_limit = 0, $max_errors = null)

 * @method int clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)

 */

class Smarty extends Smarty_Internal_TemplateBase

{

    /**

     * smarty version

     */

    const SMARTY_VERSION = '3.1.34-dev-7';

    /**

     * define variable scopes

     */

    const SCOPE_LOCAL    = 1;

    const SCOPE_PARENT   = 2;

    const SCOPE_TPL_ROOT = 4;

    const SCOPE_ROOT     = 8;

    const SCOPE_SMARTY   = 16;

    const SCOPE_GLOBAL   = 32;

    /**

     * define caching modes

     */

    const CACHING_OFF              = 0;

    const CACHING_LIFETIME_CURRENT = 1;

    const CACHING_LIFETIME_SAVED   = 2;

    /**

     * define constant for clearing cache files be saved expiration dates

     */

    const CLEAR_EXPIRED = -1;

    /**

     * define compile check modes

     */

    const COMPILECHECK_OFF       = 0;

    const COMPILECHECK_ON        = 1;

    const COMPILECHECK_CACHEMISS = 2;

    /**

     * define debug modes

     */

    const DEBUG_OFF        = 0;

    const DEBUG_ON         = 1;

    const DEBUG_INDIVIDUAL = 2;

    /**

     * modes for handling of "<?php ... ?>" tags in templates.

     */

    const PHP_PASSTHRU = 0; //-> print tags as plain text

    const PHP_QUOTE    = 1; //-> escape tags as entities

    const PHP_REMOVE   = 2; //-> escape tags as entities

    const PHP_ALLOW    = 3; //-> escape tags as entities

    /**

     * filter types

     */

    const FILTER_POST     = 'post';

    const FILTER_PRE      = 'pre';

    const FILTER_OUTPUT   = 'output';

    const FILTER_VARIABLE = 'variable';

    /**

     * plugin types

     */

    const PLUGIN_FUNCTION         = 'function';

    const PLUGIN_BLOCK            = 'block';

    const PLUGIN_COMPILER         = 'compiler';

    const PLUGIN_MODIFIER         = 'modifier';

    const PLUGIN_MODIFIERCOMPILER = 'modifiercompiler';

    /**

     * assigned global tpl vars

     */

    public static $global_tpl_vars = array();

    /**

     * Flag denoting if Multibyte String functions are available

     */

    public static $_MBSTRING = SMARTY_MBSTRING;

    /**

     * The character set to adhere to (e.g. "UTF-8")

     */

    public static $_CHARSET = SMARTY_RESOURCE_CHAR_SET;

    /**

     * The date format to be used internally

     * (accepts date() and strftime())

     */

    public static $_DATE_FORMAT = SMARTY_RESOURCE_DATE_FORMAT;

    /**

     * Flag denoting if PCRE should run in UTF-8 mode

     */

    public static $_UTF8_MODIFIER = 'u';

    /**

     * Flag denoting if operating system is windows

     */

    public static $_IS_WINDOWS = false;

    /**

     * auto literal on delimiters with whitespace

     *

     * @var boolean

     */

    public $auto_literal = true;

    /**

     * display error on not assigned variables

     *

     * @var boolean

     */

    public $error_unassigned = false;

    /**

     * look up relative file path in include_path

     *

     * @var boolean

     */

    public $use_include_path = false;

    /**

     * flag if template_dir is normalized

     *

     * @var bool

     */

    public $_templateDirNormalized = false;

    /**

     * joined template directory string used in cache keys

     *

     * @var string

     */

    public $_joined_template_dir = null;

    /**

     * flag if config_dir is normalized

     *

     * @var bool

     */

    public $_configDirNormalized = false;

    /**

     * joined config directory string used in cache keys

     *

     * @var string

     */

    public $_joined_config_dir = null;

    /**

     * default template handler

     *

     * @var callable

     */

    public $default_template_handler_func = null;

    /**

     * default config handler

     *

     * @var callable

     */

    public $default_config_handler_func = null;

    /**

     * default plugin handler

     *

     * @var callable

     */

    public $default_plugin_handler_func = null;

    /**

     * flag if template_dir is normalized

     *

     * @var bool

     */

    public $_compileDirNormalized = false;

    /**

     * flag if plugins_dir is normalized

     *

     * @var bool

     */

    public $_pluginsDirNormalized = false;

    /**

     * flag if template_dir is normalized

     *

     * @var bool

     */

    public $_cacheDirNormalized = false;

    /**

     * force template compiling?

     *

     * @var boolean

     */

    public $force_compile = false;

    /**

     * use sub dirs for compiled/cached files?

     *

     * @var boolean

     */

    public $use_sub_dirs = false;

    /**

     * allow ambiguous resources (that are made unique by the resource handler)

     *

     * @var boolean

     */

    public $allow_ambiguous_resources = false;

    /**

     * merge compiled includes

     *

     * @var boolean

     */

    public $merge_compiled_includes = false;

    /*

    * flag for behaviour when extends: resource  and {extends} tag are used simultaneous

    *   if false disable execution of {extends} in templates called by extends resource.

    *   (behaviour as versions < 3.1.28)

    *

    * @var boolean

    */

    public $extends_recursion = true;

    /**

     * force cache file creation

     *

     * @var boolean

     */

    public $force_cache = false;

    /**

     * template left-delimiter

     *

     * @var string

     */

    public $left_delimiter = "{";

    /**

     * template right-delimiter

     *

     * @var string

     */

    public $right_delimiter = "}";

    /**

     * array of strings which shall be treated as literal by compiler

     *

     * @var array string

     */

    public $literals = array();

    /**

     * class name

     * This should be instance of Smarty_Security.

     *

     * @var string

     * @see Smarty_Security

     */

    public $security_class = 'Smarty_Security';

    /**

     * implementation of security class

     *

     * @var Smarty_Security

     */

    public $security_policy = null;

    /**

     * controls handling of PHP-blocks

     *

     * @var integer

     */

    public $php_handling = self::PHP_PASSTHRU;

    /**

     * controls if the php template file resource is allowed

     *

     * @var bool

     */

    public $allow_php_templates = false;

    /**

     * debug mode

     * Setting this to true enables the debug-console.

     *

     * @var boolean

     */

    public $debugging = false;

    /**

     * 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>

     *

     * @var string

     */

    public $debugging_ctrl = 'NONE';

    /**

     * Name of debugging URL-param.

     * Only used when $debugging_ctrl is set to 'URL'.

     * The name of the URL-parameter that activates debugging.

     *

     * @var string

     */

    public $smarty_debug_id = 'SMARTY_DEBUG';

    /**

     * Path of debug template.

     *

     * @var string

     */

    public $debug_tpl = null;

    /**

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

     *

     * @var int

     */

    public $error_reporting = null;

    /**

     * Controls whether variables with the same name overwrite each other.

     *

     * @var boolean

     */

    public $config_overwrite = true;

    /**

     * Controls whether config values of on/true/yes and off/false/no get converted to boolean.

     *

     * @var boolean

     */

    public $config_booleanize = true;

    /**

     * Controls whether hidden config sections/vars are read from the file.

     *

     * @var boolean

     */

    public $config_read_hidden = false;

    /**

     * locking concurrent compiles

     *

     * @var boolean

     */

    public $compile_locking = true;

    /**

     * Controls whether cache resources should use locking mechanism

     *

     * @var boolean

     */

    public $cache_locking = false;

    /**

     * seconds to wait for acquiring a lock before ignoring the write lock

     *

     * @var float

     */

    public $locking_timeout = 10;

    /**

     * resource type used if none given

     * Must be an valid key of $registered_resources.

     *

     * @var string

     */

    public $default_resource_type = 'file';

    /**

     * caching type

     * Must be an element of $cache_resource_types.

     *

     * @var string

     */

    public $caching_type = 'file';

    /**

     * config type

     *

     * @var string

     */

    public $default_config_type = 'file';

    /**

     * check If-Modified-Since headers

     *

     * @var boolean

     */

    public $cache_modified_check = false;

    /**

     * registered plugins

     *

     * @var array

     */

    public $registered_plugins = array();

    /**

     * registered objects

     *

     * @var array

     */

    public $registered_objects = array();

    /**

     * registered classes

     *

     * @var array

     */

    public $registered_classes = array();

    /**

     * registered filters

     *

     * @var array

     */

    public $registered_filters = array();

    /**

     * registered resources

     *

     * @var array

     */

    public $registered_resources = array();

    /**

     * registered cache resources

     *

     * @var array

     */

    public $registered_cache_resources = array();

    /**

     * autoload filter

     *

     * @var array

     */

    public $autoload_filters = array();

    /**

     * default modifier

     *

     * @var array

     */

    public $default_modifiers = array();

    /**

     * autoescape variable output

     *

     * @var boolean

     */

    public $escape_html = false;

    /**

     * start time for execution time calculation

     *

     * @var int

     */

    public $start_time = 0;

    /**

     * required by the compiler for BC

     *

     * @var string

     */

    public $_current_file = null;

    /**

     * internal flag to enable parser debugging

     *

     * @var bool

     */

    public $_parserdebug = false;

    /**

     * This object type (Smarty = 1, template = 2, data = 4)

     *

     * @var int

     */

    public $_objType = 1;

    /**

     * Debug object

     *

     * @var Smarty_Internal_Debug

     */

    public $_debug = null;

    /**

     * template directory

     *

     * @var array

     */

    protected $template_dir = array('./templates/');

    /**

     * flags for normalized template directory entries

     *

     * @var array

     */

    protected $_processedTemplateDir = array();

    /**

     * config directory

     *

     * @var array

     */

    protected $config_dir = array('./configs/');

    /**

     * flags for normalized template directory entries

     *

     * @var array

     */

    protected $_processedConfigDir = array();

    /**

     * compile directory

     *

     * @var string

     */

    protected $compile_dir = './templates_c/';

    /**

     * plugins directory

     *

     * @var array

     */

    protected $plugins_dir = array();

    /**

     * cache directory

     *

     * @var string

     */

    protected $cache_dir = './cache/';

    /**

     * removed properties

     *

     * @var string[]

     */

    protected $obsoleteProperties = array(

        'resource_caching', 'template_resource_caching', 'direct_access_security',

        '_dir_perms', '_file_perms', 'plugin_search_order',

        'inheritance_merge_compiled_includes', 'resource_cache_mode',

    );

    /**

     * List of private properties which will call getter/setter on a direct access

     *

     * @var string[]

     */

    protected $accessMap = array(

        'template_dir' => 'TemplateDir', 'config_dir' => 'ConfigDir',

        'plugins_dir'  => 'PluginsDir', 'compile_dir' => 'CompileDir',

        'cache_dir'    => 'CacheDir',

    );

    /**

     * Initialize new Smarty object

     */

    public function __construct()

    {

        $this->_clearTemplateCache();

        parent::__construct();

        if (is_callable('mb_internal_encoding')) {

            mb_internal_encoding(Smarty::$_CHARSET);

        }

        $this->start_time = microtime(true);

        if (isset($_SERVER[ 'SCRIPT_NAME' ])) {

            Smarty::$global_tpl_vars[ 'SCRIPT_NAME' ] = new Smarty_Variable($_SERVER[ 'SCRIPT_NAME' ]);

        }

        // Check if we're running on windows

        Smarty::$_IS_WINDOWS = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';

        // let PCRE (preg_*) treat strings as ISO-8859-1 if we're not dealing with UTF-8

        if (Smarty::$_CHARSET !== 'UTF-8') {

            Smarty::$_UTF8_MODIFIER = '';

        }

    }

    /**

     * Enable error handler to mute expected messages

     *

     * @return     boolean

     * @deprecated

     */

    public static function muteExpectedErrors()

    {

        return Smarty_Internal_ErrorHandler::muteExpectedErrors();

    }

    /**

     * Disable error handler muting expected messages

     *

     * @deprecated

     */

    public static function unmuteExpectedErrors()

    {

        restore_error_handler();

    }

    /**

     * Check if a template resource exists

     *

     * @param string $resource_name template name

     *

     * @return bool status

     * @throws \SmartyException

     */

    public function templateExists($resource_name)

    {

        // create source object

        $source = Smarty_Template_Source::load(null, $this, $resource_name);

        return $source->exists;

    }

    /**

     * Loads security class and enables security

     *

     * @param string|Smarty_Security $security_class if a string is used, it must be class-name

     *

     * @return Smarty                 current Smarty instance for chaining

     * @throws \SmartyException

     */

    public function enableSecurity($security_class = null)

    {

        Smarty_Security::enableSecurity($this, $security_class);

        return $this;

    }

    /**

     * Disable security

     *

     * @return Smarty current Smarty instance for chaining

     */

    public function disableSecurity()

    {

        $this->security_policy = null;

        return $this;

    }

    /**

     * Add template directory(s)

     *

     * @param string|array $template_dir directory(s) of template sources

     * @param string       $key          of the array element to assign the template dir to

     * @param bool         $isConfig     true for config_dir

     *

     * @return Smarty          current Smarty instance for chaining

     */

    public function addTemplateDir($template_dir, $key = null, $isConfig = false)

    {

        if ($isConfig) {

            $processed = &$this->_processedConfigDir;

            $dir = &$this->config_dir;

            $this->_configDirNormalized = false;

        } else {

            $processed = &$this->_processedTemplateDir;

            $dir = &$this->template_dir;

            $this->_templateDirNormalized = false;

        }

        if (is_array($template_dir)) {

            foreach ($template_dir as $k => $v) {

                if (is_int($k)) {

                    // indexes are not merged but appended

                    $dir[] = $v;

                } else {

                    // string indexes are overridden

                    $dir[ $k ] = $v;

                    unset($processed[ $key ]);

                }

            }

        } else {

            if ($key !== null) {

                // override directory at specified index

                $dir[ $key ] = $template_dir;

                unset($processed[ $key ]);

            } else {

                // append new directory

                $dir[] = $template_dir;

            }

        }

        return $this;

    }

    /**

     * Get template directories

     *

     * @param mixed $index    index of directory to get, null to get all

     * @param bool  $isConfig true for config_dir

     *

     * @return array list of template directories, or directory of $index

     */

    public function getTemplateDir($index = null, $isConfig = false)

    {

        if ($isConfig) {

            $dir = &$this->config_dir;

        } else {

            $dir = &$this->template_dir;

        }

        if ($isConfig ? !$this->_configDirNormalized : !$this->_templateDirNormalized) {

            $this->_normalizeTemplateConfig($isConfig);

        }

        if ($index !== null) {

            return isset($dir[ $index ]) ? $dir[ $index ] : null;

        }

        return $dir;

    }

    /**

     * Set template directory

     *

     * @param string|array $template_dir directory(s) of template sources

     * @param bool         $isConfig     true for config_dir

     *

     * @return \Smarty current Smarty instance for chaining

     */

    public function setTemplateDir($template_dir, $isConfig = false)

    {

        if ($isConfig) {

            $this->config_dir = array();

            $this->_processedConfigDir = array();

        } else {

            $this->template_dir = array();

            $this->_processedTemplateDir = array();

        }

        $this->addTemplateDir($template_dir, null, $isConfig);

        return $this;

    }

    /**

     * Add config directory(s)

     *

     * @param string|array $config_dir directory(s) of config sources

     * @param mixed        $key        key of the array element to assign the config dir to

     *

     * @return Smarty current Smarty instance for chaining

     */

    public function addConfigDir($config_dir, $key = null)

    {

        return $this->addTemplateDir($config_dir, $key, true);

    }

    /**

     * Get config directory

     *

     * @param mixed $index index of directory to get, null to get all

     *

     * @return array configuration directory

     */

    public function getConfigDir($index = null)

    {

        return $this->getTemplateDir($index, true);

    }

    /**

     * Set config directory

     *

     * @param $config_dir

     *

     * @return Smarty       current Smarty instance for chaining

     */

    public function setConfigDir($config_dir)

    {

        return $this->setTemplateDir($config_dir, true);

    }

    /**

     * Adds directory of plugin files

     *

     * @param null|array|string $plugins_dir

     *

     * @return Smarty current Smarty instance for chaining

     */

    public function addPluginsDir($plugins_dir)

    {

        if (empty($this->plugins_dir)) {

            $this->plugins_dir[] = SMARTY_PLUGINS_DIR;

        }

        $this->plugins_dir = array_merge($this->plugins_dir, (array)$plugins_dir);

        $this->_pluginsDirNormalized = false;

        return $this;

    }

    /**

     * Get plugin directories

     *

     * @return array list of plugin directories

     */

    public function getPluginsDir()

    {

        if (empty($this->plugins_dir)) {

            $this->plugins_dir[] = SMARTY_PLUGINS_DIR;

            $this->_pluginsDirNormalized = false;

        }

        if (!$this->_pluginsDirNormalized) {

            if (!is_array($this->plugins_dir)) {

                $this->plugins_dir = (array)$this->plugins_dir;

            }

            foreach ($this->plugins_dir as $k => $v) {

                $this->plugins_dir[ $k ] = $this->_realpath(rtrim($v, '/\\') . DIRECTORY_SEPARATOR, true);

            }

            $this->_cache[ 'plugin_files' ] = array();

            $this->_pluginsDirNormalized = true;

        }

        return $this->plugins_dir;

    }

    /**

     * Set plugins directory

     *

     * @param string|array $plugins_dir directory(s) of plugins

     *

     * @return Smarty       current Smarty instance for chaining

     */

    public function setPluginsDir($plugins_dir)

    {

        $this->plugins_dir = (array)$plugins_dir;

        $this->_pluginsDirNormalized = false;

        return $this;

    }

    /**

     * Get compiled directory

     *

     * @return string path to compiled templates

     */

    public function getCompileDir()

    {

        if (!$this->_compileDirNormalized) {

            $this->_normalizeDir('compile_dir', $this->compile_dir);

            $this->_compileDirNormalized = true;

        }

        return $this->compile_dir;

    }

    /**

     *

     * @param  string $compile_dir directory to store compiled templates in

     *

     * @return Smarty current Smarty instance for chaining

     */

    public function setCompileDir($compile_dir)

    {

        $this->_normalizeDir('compile_dir', $compile_dir);

        $this->_compileDirNormalized = true;

        return $this;

    }

    /**

     * Get cache directory

     *

     * @return string path of cache directory

     */

    public function getCacheDir()

    {

        if (!$this->_cacheDirNormalized) {

            $this->_normalizeDir('cache_dir', $this->cache_dir);

            $this->_cacheDirNormalized = true;

        }

        return $this->cache_dir;

    }

    /**

     * Set cache directory

     *

     * @param string $cache_dir directory to store cached templates in

     *

     * @return Smarty current Smarty instance for chaining

     */

    public function setCacheDir($cache_dir)

    {

        $this->_normalizeDir('cache_dir', $cache_dir);

        $this->_cacheDirNormalized = true;

        return $this;

    }

    /**

     * creates a template object

     *

     * @param string  $template   the resource handle of the template file

     * @param mixed   $cache_id   cache id to be used with this template

     * @param mixed   $compile_id compile id to be used with this template

     * @param object  $parent     next higher level of Smarty variables

     * @param boolean $do_clone   flag is Smarty object shall be cloned

     *

     * @return \Smarty_Internal_Template template object

     * @throws \SmartyException

     */