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<?php
/**
* Project: Smarty: the PHP compiling template engine
* File: Smarty.class.php
* SVN: $Id: Smarty.class.php 3788 2010-11-13 18:32:50Z uwe.tews@googlemail.com $
*
* 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 2008 New Digital Group, Inc.
* @author Monte Ohrt <monte at ohrt dot com>
* @author Uwe Tews
* @package Smarty
* @version 3.0.4
*/
/**
* define shorthand directory separator constant
*/
if (!defined('DS')) {
define('DS', DIRECTORY_SEPARATOR);
}
/**
* 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__) . DS);
}
/**
* 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' . DS);
}
if (!defined('SMARTY_PLUGINS_DIR')) {
define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DS);
}
if (!defined('SMARTY_RESOURCE_CHAR_SET')) {
define('SMARTY_RESOURCE_CHAR_SET', 'UTF-8');
}
if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');
}
/**
* register the class autoloader
*/
if (!defined('SMARTY_SPL_AUTOLOAD')) {
define('SMARTY_SPL_AUTOLOAD', 0);
}
if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) {
$registeredAutoLoadFunctions = spl_autoload_functions();
if (!isset($registeredAutoLoadFunctions['spl_autoload'])) {
spl_autoload_register();
}
} else {
spl_autoload_register('smartyAutoload');
}
/**
* This is the main Smarty class
*/
class Smarty extends Smarty_Internal_Data {
/**
* constant definitions
*/
// smarty version
const SMARTY_VERSION = 'Smarty-3.0.4';
//define variable scopes
const SCOPE_LOCAL = 0;
const SCOPE_PARENT = 1;
const SCOPE_ROOT = 2;
const SCOPE_GLOBAL = 3;
// define caching modes
const CACHING_OFF = 0;
const CACHING_LIFETIME_CURRENT = 1;
const CACHING_LIFETIME_SAVED = 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';
/**
* static variables
*/
// assigned global tpl vars
static $global_tpl_vars = array();
/**
* variables
*/
// auto literal on delimiters with whitspace
public $auto_literal = true;
// display error on not assigned variables
public $error_unassigned = false;
// template directory
public $template_dir = null;
// default template handler
public $default_template_handler_func = null;
// compile directory
public $compile_dir = null;
// plugins directory
public $plugins_dir = null;
// cache directory
public $cache_dir = null;
// config directory
public $config_dir = null;
// force template compiling?
public $force_compile = false;
// check template for modifications?
public $compile_check = true;
// locking concurrent compiles
public $compile_locking = true;
// use sub dirs for compiled/cached files?
public $use_sub_dirs = false;
// compile_error?
public $compile_error = false;
// caching enabled
public $caching = false;
// merge compiled includes
public $merge_compiled_includes = false;
// cache lifetime
public $cache_lifetime = 3600;
// force cache file creation
public $force_cache = false;
// cache_id
public $cache_id = null;
// compile_id
public $compile_id = null;
// template delimiters
public $left_delimiter = "{";
public $right_delimiter = "}";
// security
public $security_class = 'Smarty_Security';
public $security_policy = null;
public $php_handling = self::PHP_PASSTHRU;
public $allow_php_tag = false;
public $allow_php_templates = false;
public $direct_access_security = true;
public $trusted_dir = array();
// debug mode
public $debugging = false;
public $debugging_ctrl = 'NONE';
public $smarty_debug_id = 'SMARTY_DEBUG';
public $debug_tpl = null;
// When set, smarty does uses this value as error_reporting-level.
public $error_reporting = null;
// config var settings
public $config_overwrite = true; //Controls whether variables with the same name overwrite each other.
public $config_booleanize = true; //Controls whether config values of on/true/yes and off/false/no get converted to boolean
public $config_read_hidden = true; //Controls whether hidden config sections/vars are read from the file.
// config vars
public $config_vars = array();
// assigned tpl vars
public $tpl_vars = array();
// dummy parent object
public $parent = null;
// global template functions
public $template_functions = array();
// resource type used if none given
public $default_resource_type = 'file';
// caching type
public $caching_type = 'file';
// internal cache resource types
public $cache_resource_types = array('file');
// internal config properties
public $properties = array();
// config type
public $default_config_type = 'file';
// cached template objects
public $template_objects = null;
// check If-Modified-Since headers
public $cache_modified_check = false;
// registered plugins
public $registered_plugins = array();
// plugin search order
public $plugin_search_order = array('function', 'block', 'compiler', 'class');
// registered objects
public $registered_objects = array();
// registered classes
public $registered_classes = array();
// registered filters
public $registered_filters = array();
// registered resources
public $registered_resources = array();
// autoload filter
public $autoload_filters = array();
// status of filter on variable output
public $variable_filter = true;
// default modifier
public $default_modifiers = array();
// global internal smarty vars
public $_smarty_vars = array();
// start time for execution time calculation
public $start_time = 0;
// default file permissions
public $_file_perms = 0644;
// default dir permissions
public $_dir_perms = 0771;
// block tag hierarchy
public $_tag_stack = array();
// flag if {block} tag is compiled for template inheritance
public $inheritance = false;
// generate deprecated function call notices?
public $deprecation_notices = true;
// Smarty 2 BC
public $_version = self::SMARTY_VERSION;
/**
* Class constructor, initializes basic smarty properties
*/
public function __construct()
{
// selfpointer need by some other class methods
$this->smarty = $this;
if (is_callable('mb_internal_encoding')) {
mb_internal_encoding(SMARTY_RESOURCE_CHAR_SET);
}
$this->start_time = microtime(true);
// set default dirs
$this->template_dir = array('.' . DS . 'templates' . DS);
$this->compile_dir = '.' . DS . 'templates_c' . DS;
$this->plugins_dir = array(SMARTY_PLUGINS_DIR);
$this->cache_dir = '.' . DS . 'cache' . DS;
$this->config_dir = '.' . DS . 'configs' . DS;
$this->debug_tpl = SMARTY_DIR . 'debug.tpl';
if (!$this->debugging && $this->debugging_ctrl == 'URL') {
if (isset($_SERVER['QUERY_STRING'])) {
$_query_string = $_SERVER['QUERY_STRING'];
} else {
$_query_string = '';
}
if (false !== strpos($_query_string, $this->smarty_debug_id)) {
if (false !== strpos($_query_string, $this->smarty_debug_id . '=on')) {
// enable debugging for this browser session
setcookie('SMARTY_DEBUG', true);
$this->debugging = true;
} elseif (false !== strpos($_query_string, $this->smarty_debug_id . '=off')) {
// disable debugging for this browser session
setcookie('SMARTY_DEBUG', false);
$this->debugging = false;
} else {
// enable debugging for this page
$this->debugging = true;
}
} else {
if (isset($_COOKIE['SMARTY_DEBUG'])) {
$this->debugging = true;
}
}
}
if (isset($_SERVER['SCRIPT_NAME'])) {
$this->assignGlobal('SCRIPT_NAME', $_SERVER['SCRIPT_NAME']);
}
}
/**
* Class destructor
*/
public function __destruct()
{
}
/**
* fetches a rendered Smarty template
*
* @param string $template the resource handle of the template file or template object
* @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 $ |null $parent next higher level of Smarty variables
* @return string rendered template output
*/
public function fetch($template, $cache_id = null, $compile_id = null, $parent = null, $display = false)
{
if (is_object($cache_id)) {
$parent = $cache_id;
$cache_id = null;
}
if ($parent === null) {
// get default Smarty data object
$parent = $this;
}
// create template object if necessary
($template instanceof $this->template_class)? $_template = $template :
$_template = $this->createTemplate ($template, $cache_id, $compile_id, $parent);
if (isset($this->error_reporting)) {
$_smarty_old_error_level = error_reporting($this->error_reporting);
}
// obtain data for cache modified check
if ($this->cache_modified_check && $this->caching && $display) {
$_isCached = $_template->isCached() && !$_template->has_nocache_code;
if ($_isCached) {
$_gmt_mtime = gmdate('D, d M Y H:i:s', $_template->getCachedTimestamp()) . ' GMT';
} else {
$_gmt_mtime = '';
}
}
// return redered template
if (isset($this->autoload_filters['output']) || isset($this->registered_filters['output'])) {
$_output = Smarty_Internal_Filter_Handler::runFilter('output', $_template->getRenderedTemplate(), $this, $_template);
} else {
$_output = $_template->getRenderedTemplate();
}
$_template->rendered_content = null;
if (isset($this->error_reporting)) {
error_reporting($_smarty_old_error_level);
}
// display or fetch
if ($display) {
if ($this->caching && $this->cache_modified_check) {
$_last_modified_date = @substr($_SERVER['HTTP_IF_MODIFIED_SINCE'], 0, strpos($_SERVER['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
if ($_isCached && $_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: ' . gmdate('D, d M Y H:i:s', $_template->getCachedTimestamp()) . ' GMT');
echo $_output;
}
} else {
echo $_output;
}
// debug output
if ($this->debugging) {
Smarty_Internal_Debug::display_debug($this);
}
return;
} else {
// return fetched content
return $_output;
}
}
/**
* displays a Smarty template
*
* @param string $ |object $template the resource handle of the template file or template object
* @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 $parent next higher level of Smarty variables
*/
public function display($template, $cache_id = null, $compile_id = null, $parent = null)
{
// display template
$this->fetch ($template, $cache_id, $compile_id, $parent, true);
}
/**
* test if cache i valid
*
* @param string $ |object $template the resource handle of the template file or template object
* @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 $parent next higher level of Smarty variables
* @return boolean cache status
*/
public function isCached($template, $cache_id = null, $compile_id = null, $parent = null)
{
if ($parent === null) {
$parent = $this;
}
if (!($template instanceof $this->template_class)) {
$template = $this->createTemplate ($template, $cache_id, $compile_id, $parent);
}
// return cache status of template
return $template->isCached();
}
/**
* creates a data object
*
* @param object $parent next higher level of Smarty variables
* @returns object data object
*/
public function createData($parent = null)
{
return new Smarty_Data($parent, $this);
}
/**
* creates a template object
*
* @param string $template the resource handle of the template file
* @param object $parent next higher level of Smarty variables
* @param mixed $cache_id cache id to be used with this template
* @param mixed $compile_id compile id to be used with this template
* @returns object template object
*/
public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
{
if (is_object($cache_id) || is_array($cache_id)) {
$parent = $cache_id;
$cache_id = null;
}
if (is_array($parent)) {
$data = $parent;
$parent = null;
} else {
$data = null;
}
if (!is_object($template)) {
// we got a template resource
// already in template cache?
$_templateId = sha1($template . $cache_id . $compile_id);
if (isset($this->template_objects[$_templateId]) && $this->caching) {
// return cached template object
$tpl = $this->template_objects[$_templateId];
} else {
// create new template object
$tpl = new $this->template_class($template, clone $this, $parent, $cache_id, $compile_id);
}
} else {
// just return a copy of template class
$tpl = $template;
}
// fill data if present
if (is_array($data)) {
// set up variable values
foreach ($data as $_key => $_val) {
$tpl->tpl_vars[$_key] = new Smarty_variable($_val);
}
}
return $tpl;
}
/**
* Check if a template resource exists
*
* @param string $resource_name template name
* @return boolean status
*/
function templateExists($resource_name)
{
// create template object
$save = $this->template_objects;
$tpl = new $this->template_class($resource_name, $this);
// check if it does exists
$result = $tpl->isExisting();
$this->template_objects = $save;
return $result;
}
/**
* Returns a single or all global variables
*
* @param object $smarty
* @param string $varname variable name or null
* @return string variable value or or array of variables
*/
function getGlobal($varname = null)
{
if (isset($varname)) {
if (isset(self::$global_tpl_vars[$varname])) {
return self::$global_tpl_vars[$varname]->value;
} else {
return '';
}
} else {
$_result = array();
foreach (self::$global_tpl_vars AS $key => $var) {
$_result[$key] = $var->value;
}
return $_result;
}
}
/**
* Empty cache folder
*
* @param integer $exp_time expiration time
* @param string $type resource type
* @return integer number of cache files deleted
*/
function clearAllCache($exp_time = null, $type = null)
{
// load cache resource and call clearAll
return $this->loadCacheResource($type)->clearAll($exp_time);
}
/**
* Empty cache for a specific template
*
* @param string $template_name template name
* @param string $cache_id cache id
* @param string $compile_id compile id
* @param integer $exp_time expiration time
* @param string $type resource type
* @return integer number of cache files deleted
*/
function clearCache($template_name, $cache_id = null, $compile_id = null, $exp_time = null, $type = null)
{
// load cache resource and call clear
return $this->loadCacheResource($type)->clear($template_name, $cache_id, $compile_id, $exp_time);
}
/**
* Loads security class and enables security
*/
public function enableSecurity($security_class = null)
{
if ($security_class instanceof Smarty_Security) {
$this->security_policy = $security_class;
return;
}
if ($security_class == null) {
$security_class = $this->security_class;
}
if (class_exists($security_class)) {
$this->security_policy = new $security_class($this);
} else {
throw new SmartyException("Security class '$security_class' is not defined");
}
}
/**
* Disable security
*/
public function disableSecurity()
{
$this->security_policy = null;
}
/**
* Loads cache resource.
*
* @param string $type cache resource type
* @return object of cache resource
*/
public function loadCacheResource($type = null) {
if (!isset($type)) {
$type = $this->caching_type;
}
if (in_array($type, $this->cache_resource_types)) {
$cache_resource_class = 'Smarty_Internal_CacheResource_' . ucfirst($type);
return new $cache_resource_class($this);
}
else {
// try plugins dir
$cache_resource_class = 'Smarty_CacheResource_' . ucfirst($type);
if ($this->loadPlugin($cache_resource_class)) {
return new $cache_resource_class($this);
}
else {
throw new SmartyException("Unable to load cache resource '{$type}'");
}
}
}
/**
* Set template directory
*
* @param string $ |array $template_dir folder(s) of template sorces
*/
public function setTemplateDir($template_dir)
{
$this->template_dir = (array)$template_dir;
return;
}
/**
* Adds template directory(s) to existing ones
*
* @param string $ |array $template_dir folder(s) of template sources
*/
public function addTemplateDir($template_dir)
{
$this->template_dir = array_unique(array_merge((array)$this->template_dir, (array)$template_dir));
return;
}
/**
* Adds directory of plugin files
*
* @param object $smarty
* @param string $ |array $ plugins folder
* @return
*/
function addPluginsDir($plugins_dir)
{
$this->plugins_dir = array_unique(array_merge((array)$this->plugins_dir, (array)$plugins_dir));
return;
}
/**
* return a reference to a registered object
*
* @param string $name object name
* @return object
*/
function getRegisteredObject($name)
{
if (!isset($this->registered_objects[$name]))
throw new SmartyException("'$name' is not a registered object");
if (!is_object($this->registered_objects[$name][0]))
throw new SmartyException("registered '$name' is not an object");
return $this->registered_objects[$name][0];
}
/**
* return name of debugging template
*
* @return string
*/
function getDebugTemplate()
{
return $this->debug_tpl;
}
/**
* set the debug template
*
* @param string $tpl_name
* @return bool
*/
function setDebugTemplate($tpl_name)
{
return $this->debug_tpl = $tpl_name;
}
/**
* Takes unknown classes and loads plugin files for them
* class name format: Smarty_PluginType_PluginName
* plugin filename format: plugintype.pluginname.php
*
* @param string $plugin_name class plugin name to load
* @return string |boolean filepath of loaded file or false
*/
public function loadPlugin($plugin_name, $check = true)
{
// if function or class exists, exit silently (already loaded)
if ($check && (is_callable($plugin_name) || class_exists($plugin_name, false)))
return true;
// Plugin name is expected to be: Smarty_[Type]_[Name]
$_plugin_name = strtolower($plugin_name);
$_name_parts = explode('_', $_plugin_name, 3);
// class name must have three parts to be valid plugin
if (count($_name_parts) < 3 || $_name_parts[0] !== 'smarty') {
throw new SmartyException("plugin {$plugin_name} is not a valid name format");
return false;
}
// if type is "internal", get plugin from sysplugins
if ($_name_parts[1] == 'internal') {
$file = SMARTY_SYSPLUGINS_DIR . $_plugin_name . '.php';
if (file_exists($file)) {
require_once($file);
return $file;
} else {
return false;
}
}
// plugin filename is expected to be: [type].[name].php
$_plugin_filename = "{$_name_parts[1]}.{$_name_parts[2]}.php";
// loop through plugin dirs and find the plugin
foreach((array)$this->plugins_dir as $_plugin_dir) {
if (strpos('/\\', substr($_plugin_dir, -1)) === false) {
$_plugin_dir .= DS;
}
$file = $_plugin_dir . $_plugin_filename;
if (file_exists($file)) {
require_once($file);
return $file;
}
}
// no plugin loaded
return false;
}
/**
* clean up properties on cloned object
*/
public function __clone()
{
// clear config vars
$this->config_vars = array();
// clear assigned tpl vars
$this->tpl_vars = array();
// clear objects for external methods
unset($this->register);
unset($this->filter);
}
/**
* Handle unknown class methods
*
* @param string $name unknown methode name
* @param array $args aurgument array
*/
public function __call($name, $args)
{
static $camel_func;
if (!isset($camel_func))
$camel_func = create_function('$c', 'return "_" . strtolower($c[1]);');
// see if this is a set/get for a property
$first3 = strtolower(substr($name, 0, 3));
if (in_array($first3, array('set', 'get')) && substr($name, 3, 1) !== '_') {
// try to keep case correct for future PHP 6.0 case-sensitive class methods
// lcfirst() not available < PHP 5.3.0, so improvise
$property_name = strtolower(substr($name, 3, 1)) . substr($name, 4);
// convert camel case to underscored name
$property_name = preg_replace_callback('/([A-Z])/', $camel_func, $property_name);
if (!property_exists($this, $property_name)) {
throw new SmartyException("property '$property_name' does not exist.");
return false;
}
if ($first3 == 'get')
return $this->$property_name;
else
return $this->$property_name = $args[0];
}
// Smarty Backward Compatible wrapper
if (strpos($name,'_') !== false) {
if (!isset($this->wrapper)) {
$this->wrapper = new Smarty_Internal_Wrapper($this);
}
return $this->wrapper->convert($name, $args);
}
// external Smarty methods ?
foreach(array('filter','register') as $external) {
if (method_exists("Smarty_Internal_{$external}",$name)) {
if (!isset($this->$external)) {
$class = "Smarty_Internal_{$external}";
$this->$external = new $class($this);
}
return call_user_func_array(array($this->$external,$name), $args);
}
}
if (in_array($name,array('clearCompiledTemplate','compileAllTemplates','compileAllConfig','testInstall','getTags'))) {
if (!isset($this->utility)) {
$this->utility = new Smarty_Internal_Utility($this);
}
return call_user_func_array(array($this->utility,$name), $args);
}
// PHP4 call to constructor?
if (strtolower($name) == 'smarty') {
throw new SmartyException('Please use parent::__construct() to call parent constuctor');
return false;
}
throw new SmartyException("Call of unknown function '$name'.");
}
}
/**
* Autoloader
*/
function smartyAutoload($class)
{
$_class = strtolower($class);
if (substr($_class, 0, 16) === 'smarty_internal_' || $_class == 'smarty_security') {
include SMARTY_SYSPLUGINS_DIR . $_class . '.php';
}
}
/**
* Smarty exception class
*/
Class SmartyException extends Exception {
}
/**
* Smarty compiler exception class
*/
Class SmartyCompilerException extends SmartyException {
}
?>