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			268 lines
		
	
	
		
			9.4 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			268 lines
		
	
	
		
			9.4 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?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 $_filepath;
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        } 
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        // check for absolute path
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        if (file_exists($this->config_resource_name))
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            return $this->config_resource_name; 
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        // no tpl file found
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        throw new Exception("Unable to load config file \"{$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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        $_filepath = sha1($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' . '.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->smarty->compile_check && $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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        // 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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        } 
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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, $scope)
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    {
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        if (isset($this->template)) {
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            $this->template->properties['file_dependency'][sha1($this->getConfigFilepath())] = array($this->getConfigFilepath(), $this->getTimestamp());
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        } else {
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            $this->smarty->properties['file_dependency'][sha1($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 => $value) {
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            if ($this->smarty->config_overwrite || !isset($scope->config_vars[$variable])) {
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                $scope->config_vars[$variable] = $value;
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            } else {
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                $scope->config_vars[$variable] = array_merge((array)$scope->config_vars[$variable], (array)$value);
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            } 
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        } 
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        // scan sections
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        foreach ($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 => $value) {
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                    if ($this->smarty->config_overwrite || !isset($scope->config_vars[$variable])) {
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                        $scope->config_vars[$variable] = $value;
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                    } else {
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                        $scope->config_vars[$variable] = array_merge((array)$scope->config_vars[$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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