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<?php
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/**
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* Smarty Internal Plugin Config
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*
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* @package Smarty
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* @subpackage Config
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* @author Uwe Tews
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*/
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/**
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* Smarty Internal Plugin Config
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*
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* Main class for config variables
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*
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* @package Smarty
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* @subpackage Config
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*
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* @property Smarty_Config_Source $source
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* @property Smarty_Config_Compiled $compiled
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* @ignore
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*/
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class Smarty_Internal_Config {
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/**
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* Samrty instance
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*
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* @var Smarty object
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*/
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public $smarty = null;
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/**
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* Object of config var storage
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*
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* @var object
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*/
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public $data = null;
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/**
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* Config resource
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* @var string
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*/
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public $config_resource = null;
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/**
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* Compiled config file
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*
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* @var string
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*/
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public $compiled_config = null;
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/**
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* filepath of compiled config file
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*
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* @var string
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*/
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public $compiled_filepath = null;
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/**
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* Filemtime of compiled config Filemtime
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*
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* @var int
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*/
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public $compiled_timestamp = null;
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/**
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* flag if compiled config file is invalid and must be (re)compiled
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* @var bool
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*/
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public $mustCompile = null;
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/**
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* Config file compiler object
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*
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* @var Smarty_Internal_Config_File_Compiler object
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*/
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public $compiler_object = null;
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/**
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* Constructor of config file object
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*
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* @param string $config_resource config file resource name
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* @param Smarty $smarty Smarty instance
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* @param object $data object for config vars storage
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*/
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public function __construct($config_resource, $smarty, $data = null)
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{
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$this->data = $data;
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$this->smarty = $smarty;
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$this->config_resource = $config_resource;
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}
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/**
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* Returns the compiled filepath
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*
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* @return string the compiled filepath
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*/
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public function getCompiledFilepath()
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{
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return $this->compiled_filepath === null ?
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($this->compiled_filepath = $this->buildCompiledFilepath()) :
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$this->compiled_filepath;
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}
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/**
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* Get file path.
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*
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* @return string
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*/
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public function buildCompiledFilepath()
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{
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$_compile_id = isset($this->smarty->compile_id) ? preg_replace('![^\w\|]+!', '_', $this->smarty->compile_id) : null;
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$_flag = (int) $this->smarty->config_read_hidden + (int) $this->smarty->config_booleanize * 2
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+ (int) $this->smarty->config_overwrite * 4;
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$_filepath = sha1($this->source->name . $_flag);
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// if use_sub_dirs, break file into directories
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if ($this->smarty->use_sub_dirs) {
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$_filepath = substr($_filepath, 0, 2) . DS
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. substr($_filepath, 2, 2) . DS
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. substr($_filepath, 4, 2) . DS
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. $_filepath;
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}
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$_compile_dir_sep = $this->smarty->use_sub_dirs ? DS : '^';
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if (isset($_compile_id)) {
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$_filepath = $_compile_id . $_compile_dir_sep . $_filepath;
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}
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$_compile_dir = $this->smarty->getCompileDir();
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return $_compile_dir . $_filepath . '.' . basename($this->source->name) . '.config' . '.php';
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}
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/**
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* Returns the timpestamp of the compiled file
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*
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* @return integer the file timestamp
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*/
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public function getCompiledTimestamp()
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{
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return $this->compiled_timestamp === null
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? ($this->compiled_timestamp = (file_exists($this->getCompiledFilepath())) ? filemtime($this->getCompiledFilepath()) : false)
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: $this->compiled_timestamp;
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}
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/**
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* Returns if the current config file must be compiled
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*
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* It does compare the timestamps of config source and the compiled config and checks the force compile configuration
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*
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* @return boolean true if the file must be compiled
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*/
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public function mustCompile()
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{
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return $this->mustCompile === null ?
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$this->mustCompile = ($this->smarty->force_compile || $this->getCompiledTimestamp () === false || $this->smarty->compile_check && $this->getCompiledTimestamp () < $this->source->timestamp):
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$this->mustCompile;
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}
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/**
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* Returns the compiled config file
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*
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* It checks if the config file must be compiled or just read the compiled version
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*
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* @return string the compiled config file
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*/
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public function getCompiledConfig()
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{
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if ($this->compiled_config === null) {
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// see if template needs compiling.
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if ($this->mustCompile()) {
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$this->compileConfigSource();
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} else {
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$this->compiled_config = file_get_contents($this->getCompiledFilepath());
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}
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}
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return $this->compiled_config;
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}
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/**
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* Compiles the config files
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*
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* @throws Exception
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*/
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public function compileConfigSource()
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{
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// compile template
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if (!is_object($this->compiler_object)) {
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// load compiler
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$this->compiler_object = new Smarty_Internal_Config_File_Compiler($this->smarty);
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}
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// compile locking
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if ($this->smarty->compile_locking) {
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if ($saved_timestamp = $this->getCompiledTimestamp()) {
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touch($this->getCompiledFilepath());
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}
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}
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// call compiler
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try {
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$this->compiler_object->compileSource($this);
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} catch (Exception $e) {
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// restore old timestamp in case of error
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if ($this->smarty->compile_locking && $saved_timestamp) {
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touch($this->getCompiledFilepath(), $saved_timestamp);
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}
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throw $e;
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}
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// compiling succeded
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// write compiled template
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Smarty_Internal_Write_File::writeFile($this->getCompiledFilepath(), $this->getCompiledConfig(), $this->smarty);
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}
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/**
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* load config variables
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*
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* @param mixed $sections array of section names, single section or null
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* @param object $scope global,parent or local
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*/
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public function loadConfigVars($sections = null, $scope = 'local')
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{
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if ($this->data instanceof Smarty_Internal_Template) {
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$this->data->properties['file_dependency'][sha1($this->source->filepath)] = array($this->source->filepath, $this->source->timestamp, 'file');
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}
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if ($this->mustCompile()) {
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$this->compileConfigSource();
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}
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// pointer to scope
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if ($scope == 'local') {
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$scope_ptr = $this->data;
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} elseif ($scope == 'parent') {
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if (isset($this->data->parent)) {
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$scope_ptr = $this->data->parent;
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} else {
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$scope_ptr = $this->data;
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}
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} elseif ($scope == 'root' || $scope == 'global') {
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$scope_ptr = $this->data;
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while (isset($scope_ptr->parent)) {
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$scope_ptr = $scope_ptr->parent;
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}
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}
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$_config_vars = array();
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include($this->getCompiledFilepath());
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// copy global config vars
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foreach ($_config_vars['vars'] as $variable => $value) {
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if ($this->smarty->config_overwrite || !isset($scope_ptr->config_vars[$variable])) {
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$scope_ptr->config_vars[$variable] = $value;
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} else {
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$scope_ptr->config_vars[$variable] = array_merge((array) $scope_ptr->config_vars[$variable], (array) $value);
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}
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}
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// scan sections
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if (!empty($sections)) {
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foreach ((array) $sections as $this_section) {
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if (isset($_config_vars['sections'][$this_section])) {
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foreach ($_config_vars['sections'][$this_section]['vars'] as $variable => $value) {
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if ($this->smarty->config_overwrite || !isset($scope_ptr->config_vars[$variable])) {
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$scope_ptr->config_vars[$variable] = $value;
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} else {
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$scope_ptr->config_vars[$variable] = array_merge((array) $scope_ptr->config_vars[$variable], (array) $value);
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}
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}
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}
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}
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}
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}
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/**
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* set Smarty property in template context
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*
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* @param string $property_name property name
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* @param mixed $value value
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* @throws SmartyException if $property_name is not valid
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*/
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public function __set($property_name, $value)
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{
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switch ($property_name) {
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case 'source':
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case 'compiled':
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$this->$property_name = $value;
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return;
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}
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throw new SmartyException("invalid config property '$property_name'.");
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}
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/**
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* get Smarty property in template context
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*
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* @param string $property_name property name
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* @throws SmartyException if $property_name is not valid
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*/
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public function __get($property_name)
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{
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switch ($property_name) {
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case 'source':
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if (empty($this->config_resource)) {
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throw new SmartyException("Unable to parse resource name \"{$this->config_resource}\"");
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}
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$this->source = Smarty_Resource::config($this);
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return $this->source;
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case 'compiled':
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$this->compiled = $this->source->getCompiled($this);
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return $this->compiled;
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}
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throw new SmartyException("config attribute '$property_name' does not exist.");
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}
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}
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?> |