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