smarty_internal_templatebase.php
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<?php
/**
* Smarty Internal Plugin Smarty Template Base
*
* This file contains the basic shared methodes for template handling
*
* @package Smarty
* @subpackage Template
* @author Uwe Tews
*/
/**
* Class with shared template methodes
*
* @package Smarty
* @subpackage Template
*/
abstract class Smarty_Internal_TemplateBase extends Smarty_Internal_Data {
/**
* 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 $parent next higher level of Smarty variables
* @param bool $display true: display, false: fetch
* @param bool $merge_tpl_vars if true parent template variables merged in to local scope
* @param bool $no_output_filter if true do not run output filter
* @return string rendered template output
*/
public function fetch($template = null, $cache_id = null, $compile_id = null, $parent = null, $display = false, $merge_tpl_vars = true, $no_output_filter = false)
{
if ($template === null && $this instanceof $this->template_class) {
$template = $this;
}
if (!empty($cache_id) && is_object($cache_id)) {
$parent = $cache_id;
$cache_id = null;
}
if ($parent === null && ($this instanceof Smarty || is_string($template))) {
$parent = $this;
}
// create template object if necessary
$_template = ($template instanceof $this->template_class)
? $template
: $this->smarty->createTemplate($template, $cache_id, $compile_id, $parent, false);
// if called by Smarty object make sure we use current caching status
if ($this instanceof Smarty) {
$_template->caching = $this->caching;
}
// merge all variable scopes into template
if ($merge_tpl_vars) {
// save local variables
$save_tpl_vars = $_template->tpl_vars;
$save_config_vars = $_template->config_vars;
$ptr_array = array($_template);
$ptr = $_template;
while (isset($ptr->parent)) {
$ptr_array[] = $ptr = $ptr->parent;
}
$ptr_array = array_reverse($ptr_array);
$parent_ptr = reset($ptr_array);
$tpl_vars = $parent_ptr->tpl_vars;
$config_vars = $parent_ptr->config_vars;
while ($parent_ptr = next($ptr_array)) {
if (!empty($parent_ptr->tpl_vars)) {
$tpl_vars = array_merge($tpl_vars, $parent_ptr->tpl_vars);
}
if (!empty($parent_ptr->config_vars)) {
$config_vars = array_merge($config_vars, $parent_ptr->config_vars);
}
}
if (!empty(Smarty::$global_tpl_vars)) {
$tpl_vars = array_merge(Smarty::$global_tpl_vars, $tpl_vars);
}
$_template->tpl_vars = $tpl_vars;
$_template->config_vars = $config_vars;
}
// dummy local smarty variable
if (!isset($_template->tpl_vars['smarty'])) {
$_template->tpl_vars['smarty'] = new Smarty_Variable;
}
if (isset($this->smarty->error_reporting)) {
$_smarty_old_error_level = error_reporting($this->smarty->error_reporting);
}
// check URL debugging control
if (!$this->smarty->debugging && $this->smarty->debugging_ctrl == 'URL') {
if (isset($_SERVER['QUERY_STRING'])) {
$_query_string = $_SERVER['QUERY_STRING'];
} else {
$_query_string = '';
}
if (false !== strpos($_query_string, $this->smarty->smarty_debug_id)) {
if (false !== strpos($_query_string, $this->smarty->smarty_debug_id . '=on')) {
// enable debugging for this browser session
setcookie('SMARTY_DEBUG', true);
$this->smarty->debugging = true;
} elseif (false !== strpos($_query_string, $this->smarty->smarty_debug_id . '=off')) {
// disable debugging for this browser session
setcookie('SMARTY_DEBUG', false);
$this->smarty->debugging = false;
} else {
// enable debugging for this page
$this->smarty->debugging = true;
}
} else {
if (isset($_COOKIE['SMARTY_DEBUG'])) {
$this->smarty->debugging = true;
}
}
}
// must reset merge template date
$_template->smarty->merged_templates_func = array();
// get rendered template
// disable caching for evaluated code
if ($_template->source->recompiled) {
$_template->caching = false;
}
// checks if template exists
if (!$_template->source->exists) {
if ($_template->parent instanceof Smarty_Internal_Template) {
$parent_resource = " in '{$_template->parent->template_resource}'";
} else {
$parent_resource = '';
}
throw new SmartyException("Unable to load template {$_template->source->type} '{$_template->source->name}'{$parent_resource}");
}
// read from cache or render
if (!($_template->caching == Smarty::CACHING_LIFETIME_CURRENT || $_template->caching == Smarty::CACHING_LIFETIME_SAVED) || !$_template->cached->valid) {
// render template (not loaded and not in cache)
if (!$_template->source->uncompiled) {
$_smarty_tpl = $_template;
if ($_template->source->recompiled) {
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_compile($_template);
}
$code = $_template->compiler->compileTemplate($_template);
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_compile($_template);
}
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_render($_template);
}
try {
ob_start();
eval("?>" . $code);
unset($code);
} catch (Exception $e) {
ob_get_clean();
throw $e;
}
} else {
if (!$_template->compiled->exists || ($_template->smarty->force_compile && !$_template->compiled->isCompiled)) {
$_template->compileTemplateSource();
}
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_render($_template);
}
if (!$_template->compiled->loaded) {
include($_template->compiled->filepath);
if ($_template->mustCompile) {
// recompile and load again
$_template->compileTemplateSource();
include($_template->compiled->filepath);
}
$_template->compiled->loaded = true;
} else {
$_template->decodeProperties($_template->compiled->_properties, false);
}
try {
ob_start();
if (empty($_template->properties['unifunc']) || !is_callable($_template->properties['unifunc'])) {
throw new SmartyException("Invalid compiled template for '{$_template->template_resource}'");
}
$_template->properties['unifunc']($_template);
if (isset($_template->_capture_stack[0])) {
$_template->capture_error();
}
} catch (Exception $e) {
ob_get_clean();
throw $e;
}
}
} else {
if ($_template->source->uncompiled) {
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_render($_template);
}
try {
ob_start();
$_template->source->renderUncompiled($_template);
} catch (Exception $e) {
ob_get_clean();
throw $e;
}
} else {
throw new SmartyException("Resource '$_template->source->type' must have 'renderUncompiled' method");
}
}
$_output = ob_get_clean();
if (!$_template->source->recompiled && empty($_template->properties['file_dependency'][$_template->source->uid])) {
$_template->properties['file_dependency'][$_template->source->uid] = array($_template->source->filepath, $_template->source->timestamp, $_template->source->type);
}
if ($_template->parent instanceof Smarty_Internal_Template) {
$_template->parent->properties['file_dependency'] = array_merge($_template->parent->properties['file_dependency'], $_template->properties['file_dependency']);
foreach ($_template->required_plugins as $code => $tmp1) {
foreach ($tmp1 as $name => $tmp) {
foreach ($tmp as $type => $data) {
$_template->parent->required_plugins[$code][$name][$type] = $data;
}
}
}
}
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_render($_template);
}
// write to cache when nessecary
if (!$_template->source->recompiled && ($_template->caching == Smarty::CACHING_LIFETIME_SAVED || $_template->caching == Smarty::CACHING_LIFETIME_CURRENT)) {
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_cache($_template);
}
$_template->properties['has_nocache_code'] = false;
// get text between non-cached items
$cache_split = preg_split("!/\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*\/(.+?)/\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*/!s", $_output);
// get non-cached items
preg_match_all("!/\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*\/(.+?)/\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*/!s", $_output, $cache_parts);
$output = '';
// loop over items, stitch back together
foreach ($cache_split as $curr_idx => $curr_split) {
// escape PHP tags in template content
$output .= preg_replace('/(<%|%>|<\?php|<\?|\?>)/', '<?php echo \'$1\'; ?>', $curr_split);
if (isset($cache_parts[0][$curr_idx])) {
$_template->properties['has_nocache_code'] = true;
// remove nocache tags from cache output
$output .= preg_replace("!/\*/?%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*/!", '', $cache_parts[0][$curr_idx]);
}
}
if (!$no_output_filter && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
$output = Smarty_Internal_Filter_Handler::runFilter('output', $output, $_template);
}
// rendering (must be done before writing cache file because of {function} nocache handling)
$_smarty_tpl = $_template;
try {
ob_start();
eval("?>" . $output);
$_output = ob_get_clean();
} catch (Exception $e) {
ob_get_clean();
throw $e;
}
// write cache file content
$_template->writeCachedContent($output);
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_cache($_template);
}
} else {
// var_dump('renderTemplate', $_template->has_nocache_code, $_template->template_resource, $_template->properties['nocache_hash'], $_template->parent->properties['nocache_hash'], $_output);
if (!empty($_template->properties['nocache_hash']) && !empty($_template->parent->properties['nocache_hash'])) {
// replace nocache_hash
$_output = preg_replace("/{$_template->properties['nocache_hash']}/", $_template->parent->properties['nocache_hash'], $_output);
$_template->parent->has_nocache_code = $_template->parent->has_nocache_code || $_template->has_nocache_code;
}
}
} else {
if ($this->smarty->debugging) {
Smarty_Internal_Debug::start_cache($_template);
}
try {
ob_start();
$_template->properties['unifunc']($_template);
if (isset($_template->_capture_stack[0])) {
$_template->capture_error();
}
$_output = ob_get_clean();
} catch (Exception $e) {
ob_get_clean();
throw $e;
}
if ($this->smarty->debugging) {
Smarty_Internal_Debug::end_cache($_template);
}
}
if ((!$this->caching || $_template->source->recompiled) && !$no_output_filter && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
$_output = Smarty_Internal_Filter_Handler::runFilter('output', $_output, $_template);
}
if (isset($this->error_reporting)) {
error_reporting($_smarty_old_error_level);
}
// display or fetch
if ($display) {
if ($this->caching && $this->cache_modified_check) {
$_isCached = $_template->isCached() && !$_template->has_nocache_code;
$_last_modified_date = @substr($_SERVER['HTTP_IF_MODIFIED_SINCE'], 0, strpos($_SERVER['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
if ($_isCached && $_template->cached->timestamp <= strtotime($_last_modified_date)) {
switch (PHP_SAPI) {
case 'cgi': // php-cgi < 5.3
case 'cgi-fcgi': // php-cgi >= 5.3
case 'fpm-fcgi': // php-fpm >= 5.3.3
header('Status: 304 Not Modified');
break;
case 'cli':
if (/* ^phpunit */!empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS'])/* phpunit$ */) {
$_SERVER['SMARTY_PHPUNIT_HEADERS'][] = '304 Not Modified';
}
break;
default:
header('HTTP/1.1 304 Not Modified');
break;
}
} else {
switch (PHP_SAPI) {
case 'cli':
if (/* ^phpunit */!empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS'])/* phpunit$ */) {
$_SERVER['SMARTY_PHPUNIT_HEADERS'][] = 'Last-Modified: ' . gmdate('D, d M Y H:i:s', $_template->cached->timestamp) . ' GMT';
}
break;
default:
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $_template->cached->timestamp) . ' GMT');
break;
}
echo $_output;
}
} else {
echo $_output;
}
// debug output
if ($this->smarty->debugging) {
Smarty_Internal_Debug::display_debug($this);
}
if ($merge_tpl_vars) {
// restore local variables
$_template->tpl_vars = $save_tpl_vars;
$_template->config_vars = $save_config_vars;
}
return;
} else {
if ($merge_tpl_vars) {
// restore local variables
$_template->tpl_vars = $save_tpl_vars;
$_template->config_vars = $save_config_vars;
}
// return fetched content
return $_output;
}
}
/**
* displays a 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 $parent next higher level of Smarty variables
*/
public function display($template = null, $cache_id = null, $compile_id = null, $parent = null)
{
// display template
$this->fetch($template, $cache_id, $compile_id, $parent, true);
}
/**
* test if cache is 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 = null, $cache_id = null, $compile_id = null, $parent = null)
{
if ($template === null && $this instanceof $this->template_class) {
return $this->cached->valid;
}
if (!($template instanceof $this->template_class)) {
if ($parent === null) {
$parent = $this;
}
$template = $this->smarty->createTemplate($template, $cache_id, $compile_id, $parent, false);
}
// return cache status of template
return $template->cached->valid;
}
/**
* creates a data object
*
* @param object $parent next higher level of Smarty variables
* @returns Smarty_Data data object
*/
public function createData($parent = null)
{
return new Smarty_Data($parent, $this);
}
/**
* Registers plugin to be used in templates
*
* @param string $type plugin type
* @param string $tag name of template tag
* @param callback $callback PHP callback to register
* @param boolean $cacheable if true (default) this fuction is cachable
* @param array $cache_attr caching attributes if any
* @throws SmartyException when the plugin tag is invalid
*/
public function registerPlugin($type, $tag, $callback, $cacheable = true, $cache_attr = null)
{
if (isset($this->smarty->registered_plugins[$type][$tag])) {
throw new SmartyException("Plugin tag \"{$tag}\" already registered");
} elseif (!is_callable($callback)) {
throw new SmartyException("Plugin \"{$tag}\" not callable");
} else {
$this->smarty->registered_plugins[$type][$tag] = array($callback, (bool) $cacheable, (array) $cache_attr);
}
}
/**
* Unregister Plugin
*
* @param string $type of plugin
* @param string $tag name of plugin
*/
public function unregisterPlugin($type, $tag)
{
if (isset($this->smarty->registered_plugins[$type][$tag])) {
unset($this->smarty->registered_plugins[$type][$tag]);
}
}
/**
* Registers a resource to fetch a template
*
* @param string $type name of resource type
* @param Smarty_Resource|array $callback or instance of Smarty_Resource, or array of callbacks to handle resource (deprecated)
*/
public function registerResource($type, $callback)
{
$this->smarty->registered_resources[$type] = $callback instanceof Smarty_Resource ? $callback : array($callback, false);
}
/**
* Unregisters a resource
*
* @param string $type name of resource type
*/
public function unregisterResource($type)
{
if (isset($this->smarty->registered_resources[$type])) {
unset($this->smarty->registered_resources[$type]);
}
}
/**
* Registers a cache resource to cache a template's output
*
* @param string $type name of cache resource type
* @param Smarty_CacheResource $callback instance of Smarty_CacheResource to handle output caching
*/
public function registerCacheResource($type, Smarty_CacheResource $callback)
{
$this->smarty->registered_cache_resources[$type] = $callback;
}
/**
* Unregisters a cache resource
*
* @param string $type name of cache resource type
*/
public function unregisterCacheResource($type)
{
if (isset($this->smarty->registered_cache_resources[$type])) {
unset($this->smarty->registered_cache_resources[$type]);
}
}
/**
* Registers object to be used in templates
*
* @param string $object name of template object
* @param object $object_impl the referenced PHP object to register
* @param array $allowed list of allowed methods (empty = all)
* @param boolean $smarty_args smarty argument format, else traditional
* @param array $block_methods list of block-methods
* @param array $block_functs list of methods that are block format
* @throws SmartyException if any of the methods in $allowed or $block_methods are invalid
*/
public function registerObject($object_name, $object_impl, $allowed = array(), $smarty_args = true, $block_methods = array())
{
// test if allowed methodes callable
if (!empty($allowed)) {
foreach ((array) $allowed as $method) {
if (!is_callable(array($object_impl, $method))) {
throw new SmartyException("Undefined method '$method' in registered object");
}
}
}
// test if block methodes callable
if (!empty($block_methods)) {
foreach ((array) $block_methods as $method) {
if (!is_callable(array($object_impl, $method))) {
throw new SmartyException("Undefined method '$method' in registered object");
}
}
}
// register the object
$this->smarty->registered_objects[$object_name] =
array($object_impl, (array) $allowed, (boolean) $smarty_args, (array) $block_methods);
}
/**
* return a reference to a registered object
*
* @param string $name object name
* @return object
* @throws SmartyException if no such object is found
*/
public function getRegisteredObject($name)
{
if (!isset($this->smarty->registered_objects[$name])) {
throw new SmartyException("'$name' is not a registered object");
}
if (!is_object($this->smarty->registered_objects[$name][0])) {
throw new SmartyException("registered '$name' is not an object");
}
return $this->smarty->registered_objects[$name][0];
}
/**
* unregister an object
*
* @param string $name object name
* @throws SmartyException if no such object is found
*/
public function unregisterObject($name)
{
unset($this->smarty->registered_objects[$name]);
return;
}
/**
* Registers static classes to be used in templates
*
* @param string $class name of template class
* @param string $class_impl the referenced PHP class to register
* @throws SmartyException if $class_impl does not refer to an existing class
*/
public function registerClass($class_name, $class_impl)
{
// test if exists
if (!class_exists($class_impl)) {
throw new SmartyException("Undefined class '$class_impl' in register template class");
}
// register the class
$this->smarty->registered_classes[$class_name] = $class_impl;
}
/**
* Registers a default plugin handler
*
* @param callable $callback class/method name
* @throws SmartyException if $callback is not callable
*/
public function registerDefaultPluginHandler($callback)
{
if (is_callable($callback)) {
$this->smarty->default_plugin_handler_func = $callback;
} else {
throw new SmartyException("Default plugin handler '$callback' not callable");
}
}
/**
* Registers a default template handler
*
* @param callable $callback class/method name
* @throws SmartyException if $callback is not callable
*/
public function registerDefaultTemplateHandler($callback)
{
if (is_callable($callback)) {
$this->smarty->default_template_handler_func = $callback;
} else {
throw new SmartyException("Default template handler '$callback' not callable");
}
}
/**
* Registers a default template handler
*
* @param callable $callback class/method name
* @throws SmartyException if $callback is not callable
*/
public function registerDefaultConfigHandler($callback)
{
if (is_callable($callback)) {
$this->smarty->default_config_handler_func = $callback;
} else {
throw new SmartyException("Default config handler '$callback' not callable");
}
}
/**
* Registers a filter function
*
* @param string $type filter type
* @param callback $callback
*/
public function registerFilter($type, $callback)
{
$this->smarty->registered_filters[$type][$this->_get_filter_name($callback)] = $callback;
}
/**
* Unregisters a filter function
*
* @param string $type filter type
* @param callback $callback
*/
public function unregisterFilter($type, $callback)
{
$name = $this->_get_filter_name($callback);
if (isset($this->smarty->registered_filters[$type][$name])) {
unset($this->smarty->registered_filters[$type][$name]);
}
}
/**
* Return internal filter name
*
* @param callback $function_name
*/
public function _get_filter_name($function_name)
{
if (is_array($function_name)) {
$_class_name = (is_object($function_name[0]) ?
get_class($function_name[0]) : $function_name[0]);
return $_class_name . '_' . $function_name[1];
} else {
return $function_name;
}
}
/**
* load a filter of specified type and name
*
* @param string $type filter type
* @param string $name filter name
* @return bool
*/
public function loadFilter($type, $name)
{
$_plugin = "smarty_{$type}filter_{$name}";
$_filter_name = $_plugin;
if ($this->smarty->loadPlugin($_plugin)) {
if (class_exists($_plugin, false)) {
$_plugin = array($_plugin, 'execute');
}
if (is_callable($_plugin)) {
$this->smarty->registered_filters[$type][$_filter_name] = $_plugin;
return true;
}
}
throw new SmartyException("{$type}filter \"{$name}\" not callable");
return false;
}
/**
* unload a filter of specified type and name
*
* @param string $type filter type
* @param string $name filter name
* @return bool
*/
public function unloadFilter($type, $name)
{
$_filter_name = "smarty_{$type}filter_{$name}";
if (isset($this->smarty->registered_filters[$type][$_filter_name])) {
unset ($this->smarty->registered_filters[$type][$_filter_name]);
return true;
} else {
return false;
}
}
/**
* preg_replace callback to convert camelcase getter/setter to underscore property names
*
* @param string $match match string
* @return string replacemant
*/
private function replaceCamelcase($match) {
return "_" . strtolower($match[1]);
}
/**
* Handle unknown class methods
*
* @param string $name unknown method-name
* @param array $args argument array
*/
public function __call($name, $args)
{
static $_prefixes = array('set' => true, 'get' => true);
static $_resolved_property_name = array();
static $_resolved_property_source = array();
// method of Smarty object?
if (method_exists($this->smarty, $name)) {
return call_user_func_array(array($this->smarty, $name), $args);
}
// see if this is a set/get for a property
$first3 = strtolower(substr($name, 0, 3));
if (isset($_prefixes[$first3]) && isset($name[3]) && $name[3] !== '_') {
if (isset($_resolved_property_name[$name])) {
$property_name = $_resolved_property_name[$name];
} else {
// 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
$property_name = preg_replace_callback('/([A-Z])/', array($this,'replaceCamelcase'), $property_name);
$_resolved_property_name[$name] = $property_name;
}
if (isset($_resolved_property_source[$property_name])) {
$_is_this = $_resolved_property_source[$property_name];
} else {
$_is_this = null;
if (property_exists($this, $property_name)) {
$_is_this = true;
} else if (property_exists($this->smarty, $property_name)) {
$_is_this = false;
}
$_resolved_property_source[$property_name] = $_is_this;
}
if ($_is_this) {
if ($first3 == 'get')
return $this->$property_name;
else
return $this->$property_name = $args[0];
} else if ($_is_this === false) {
if ($first3 == 'get')
return $this->smarty->$property_name;
else
return $this->smarty->$property_name = $args[0];
} else {
throw new SmartyException("property '$property_name' does not exist.");
return false;
}
}
if ($name == 'Smarty') {
throw new SmartyException("PHP5 requires you to call __construct() instead of Smarty()");
}
// must be unknown
throw new SmartyException("Call of unknown method '$name'.");
}
}
?>