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<?php
/**
* Tplfunc Runtime Methods callTemplateFunction
*
* @package Smarty
* @subpackage PluginsInternal
* @author Uwe Tews
*
**/
class Smarty_Internal_Runtime_TplFunction
{
/**
* Array of source information for known template functions
*
* @var array
*/
private $tplFunctions = array();
/**
* Call template function
*
* @param \Smarty_Internal_Template $tpl template object
* @param string $name template function name
* @param array $params parameter array
* @param bool $nocache true if called nocache
*
* @throws \SmartyException
*/
public function callTemplateFunction(Smarty_Internal_Template $tpl, $name, $params, $nocache)
{
if (isset($this->tplFunctions[ $name ])) {
if (!$tpl->caching || ($tpl->caching && $nocache)) {
$function = $this->tplFunctions[ $name ][ 'call_name' ];
} else {
if (isset($this->tplFunctions[ $name ][ 'call_name_caching' ])) {
$function = $this->tplFunctions[ $name ][ 'call_name_caching' ];
} else {
$function = $this->tplFunctions[ $name ][ 'call_name' ];
}
}
if (function_exists($function)) {
$this->saveTemplateVariables($tpl, $name);
$function ($tpl, $params);
$this->restoreTemplateVariables($tpl, $name);
return;
}
// try to load template function dynamically
if ($this->addTplFuncToCache($tpl, $name, $function)) {
$this->saveTemplateVariables($tpl, $name);
$function ($tpl, $params);
$this->restoreTemplateVariables($tpl, $name);
return;
}
}
throw new SmartyException("Unable to find template function '{$name}'");
}
/**
* Register template functions defined by template
*
* @param \Smarty_Internal_Template $tpl
* @param array $tplFunctions source information array of template functions defined in template
*/
public function registerTplFunctions(Smarty_Internal_Template $tpl, $tplFunctions)
{
$this->tplFunctions = array_merge($this->tplFunctions, $tplFunctions);
$ptr = $tpl;
// make sure that the template functions are known in parent templates
while (isset($ptr->parent) && $ptr->parent->_objType === 2 && !isset($ptr->ext->_tplFunction)) {
$ptr->ext->_tplFunction = $this;
$ptr = $ptr->parent;
}
}
/**
* Return source parameter array for single or all template functions
*
* @param null|string $name template function name
*
* @return array|bool|mixed
*/
public function getTplFunction($name = null)
{
if (isset($name)) {
return $this->tplFunctions[ $name ] ? $this->tplFunctions[ $name ] : false;
} else {
return $this->tplFunctions;
}
}
/**
*
* Add template function to cache file for nocache calls
*
* @param Smarty_Internal_Template $tpl
* @param string $_name template function name
* @param string $_function PHP function name
*
* @return bool
*/
public function addTplFuncToCache(Smarty_Internal_Template $tpl, $_name, $_function)
{
$funcParam = $this->tplFunctions[ $_name ];
if (is_file($funcParam[ 'compiled_filepath' ])) {
// read compiled file
$code = file_get_contents($funcParam[ 'compiled_filepath' ]);
// grab template function
if (preg_match("/\/\* {$_function} \*\/([\S\s]*?)\/\*\/ {$_function} \*\//", $code, $match)) {
// grab source info from file dependency
preg_match("/\s*'{$funcParam['uid']}'([\S\s]*?)\),/", $code, $match1);
unset($code);
// make PHP function known
eval($match[ 0 ]);
if (function_exists($_function)) {
// search cache file template
$tplPtr = $tpl;
while (!isset($tplPtr->cached) && isset($tplPtr->parent)) {
$tplPtr = $tplPtr->parent;
}
// add template function code to cache file
if (isset($tplPtr->cached)) {
/* @var Smarty_CacheResource $cache */
$cache = $tplPtr->cached;
$content = $cache->read($tplPtr);
if ($content) {
// check if we must update file dependency
if (!preg_match("/'{$funcParam['uid']}'(.*?)'nocache_hash'/", $content, $match2)) {
$content = preg_replace("/('file_dependency'(.*?)\()/", "\\1{$match1[0]}", $content);
}
$tplPtr->smarty->ext->_updateCache->write($cache, $tplPtr,
preg_replace('/\s*\?>\s*$/', "\n", $content) .
"\n" . preg_replace(array('/^\s*<\?php\s+/',
'/\s*\?>\s*$/',), "\n",
$match[ 0 ]));
}
}
return true;
}
}
}
return false;
}
/**
* Save current template variables on stack
*
* @param \Smarty_Internal_Template $tpl
* @param string $name stack name
*/
public function saveTemplateVariables(Smarty_Internal_Template $tpl, $name)
{
$tpl->_cache[ 'varStack' ][] =
array('tpl' => $tpl->tpl_vars, 'config' => $tpl->config_vars, 'name' => "_tplFunction_{$name}");
}
/**
* Restore saved variables into template objects
*
* @param \Smarty_Internal_Template $tpl
* @param string $name stack name
*/
public function restoreTemplateVariables(Smarty_Internal_Template $tpl, $name)
{
if (isset($tpl->_cache[ 'varStack' ])) {
$vars = array_pop($tpl->_cache[ 'varStack' ]);
$tpl->tpl_vars = $vars[ 'tpl' ];
$tpl->config_vars = $vars[ 'config' ];
}
}
}
|
