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			306 lines
		
	
	
		
			9.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			306 lines
		
	
	
		
			9.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?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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    /**
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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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