250 lines
8.6 KiB
PHP
250 lines
8.6 KiB
PHP
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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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* Main class for config variables
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*
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* @ignore
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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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class Smarty_Internal_Config {
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static $config_objects = array();
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public function __construct($config_resource, $smarty, $template = null)
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{
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$this->template = $template;
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$this->smarty = $smarty;
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$this->config_resource = $config_resource;
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$this->config_resource_type = null;
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$this->config_resource_name = null;
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$this->config_filepath = null;
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$this->config_timestamp = null;
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$this->config_source = null;
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$this->compiled_config = null;
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$this->compiled_filepath = null;
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$this->compiled_timestamp = null;
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$this->mustCompile = null;
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$this->compiler_object = null;
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// parse config resource name
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if (!$this->parseConfigResourceName ($config_resource)) {
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throw new Exception ("Unable to parse config resource '{$config_resource}'");
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}
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}
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public function getConfigFilepath ()
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{
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return $this->config_filepath === null ?
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$this->config_filepath = $this->buildConfigFilepath() :
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$this->config_filepath;
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}
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public function getTimestamp ()
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{
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return $this->config_timestamp === null ?
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$this->config_timestamp = filemtime($this->getConfigFilepath()) :
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$this->config_timestamp;
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}
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private function parseConfigResourceName($config_resource)
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{
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if (empty($config_resource))
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return false;
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if (strpos($config_resource, ':') === false) {
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// no resource given, use default
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$this->config_resource_type = $this->smarty->default_config_type;
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$this->config_resource_name = $config_resource;
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} else {
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// get type and name from path
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list($this->config_resource_type, $this->config_resource_name) = explode(':', $config_resource, 2);
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if (strlen($this->config_resource_type) == 1) {
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// 1 char is not resource type, but part of filepath
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$this->config_resource_type = $this->smarty->default_config_type;
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$this->config_resource_name = $config_resource;
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} else {
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$this->config_resource_type = strtolower($this->config_resource_type);
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}
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}
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return true;
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}
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/*
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* get system filepath to config
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*/
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public function buildConfigFilepath ()
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{
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foreach((array)$this->smarty->config_dir as $_config_dir) {
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if (strpos('/\\', substr($_config_dir, -1)) === false) {
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$_config_dir .= DS;
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}
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$_filepath = $_config_dir . $this->config_resource_name;
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if (file_exists($_filepath))
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return $_filepath;
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}
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// no tpl file found
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throw new Exception("Unable to load config file \"{$this->config_resource_name}\"");
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return false;
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}
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/**
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* Read config file source
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*
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* @return string content of source file
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*/
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/**
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* Returns the template source code
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*
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* The template source is being read by the actual resource handler
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*
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* @return string the template source
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*/
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public function getConfigSource ()
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{
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if ($this->config_source === null) {
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if ($this->readConfigSource($this) === false) {
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throw new Exception("Unable to load config file \"{$this->config_resource_name}\"");
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}
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}
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return $this->config_source;
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}
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public function readConfigSource()
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{
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// read source file
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if (file_exists($this->getConfigFilepath())) {
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$this->config_source = file_get_contents($this->getConfigFilepath());
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return true;
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} else {
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return false;
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}
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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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public function buildCompiledFilepath()
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{
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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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$_filepath = (string)abs(crc32($this->config_resource_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 = $this->smarty->compile_dir;
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if (substr($_compile_dir, -1) != DS) {
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$_compile_dir .= DS;
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}
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return $_compile_dir . $_filepath . '.' . basename($this->config_resource_name) . '.config' . $this->smarty->php_ext;
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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 () !== $this->getTimestamp ()):
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$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 $this->compiled_config;
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}
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/**
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* Compiles the config files
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*/
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public function compileConfigSource ()
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{
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// compile template
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if (!is_object($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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// call compiler
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if ($this->compiler_object->compileSource($this)) {
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// compiling succeded
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// write compiled template
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Smarty_Internal_Write_File::writeFile($this->getCompiledFilepath(), $this->getCompiledConfig());
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// make template and compiled file timestamp match
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touch($this->getCompiledFilepath(), $this->getTimestamp());
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} else {
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// error compiling template
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throw new Exception("Error compiling template {$this->getConfigFilepath ()}");
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return false;
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}
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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, $scope)
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{
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if (isset($this->template)) {
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$this->template->properties['file_dependency']['F' . abs(crc32($this->getConfigFilepath()))] = array($this->getConfigFilepath(), $this->getTimestamp());
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} else {
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$this->smarty->properties['file_dependency']['F' . abs(crc32($this->getConfigFilepath()))] = array($this->getConfigFilepath(), $this->getTimestamp());
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}
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$config_data = unserialize($this->getCompiledConfig());
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// var_dump($config_data);
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// copy global config vars
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foreach ($config_data['vars'] as $variable => $value) {
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$scope->config_vars[$variable] = $value;
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}
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// scan sections
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foreach ($config_data['sections'] as $this_section => $dummy) {
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if ($sections == null || in_array($this_section, (array)$sections)) {
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foreach ($config_data['sections'][$this_section]['vars'] as $variable => $value) {
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$scope->config_vars[$variable] = $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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