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