www.gusucode.com > Useforum PHP轻论坛 v1.2.1PHP源码程序 > Useforum PHP轻论坛 v1.2.1/Useforum_v1.2.1/Useforum_v1.2.1/include/Drivers/Smarty/sysplugins/smarty_internal_config.php
<?php
/**
* Smarty Internal Plugin Config
*
* Main class for config variables
*
* @ignore
* @package Smarty
* @subpackage Config
* @author Uwe Tews
*/
class Smarty_Internal_Config {
static $config_objects = array();
public function __construct($config_resource, $smarty, $data = null)
{
$this->data = $data;
$this->smarty = $smarty;
$this->config_resource = $config_resource;
$this->config_resource_type = null;
$this->config_resource_name = null;
$this->config_filepath = null;
$this->config_timestamp = null;
$this->config_source = null;
$this->compiled_config = null;
$this->compiled_filepath = null;
$this->compiled_timestamp = null;
$this->mustCompile = null;
$this->compiler_object = null;
// parse config resource name
if (!$this->parseConfigResourceName ($config_resource)) {
throw new SmartyException ("Unable to parse config resource '{$config_resource}'");
}
}
public function getConfigFilepath ()
{
return $this->config_filepath === null ?
$this->config_filepath = $this->buildConfigFilepath() :
$this->config_filepath;
}
public function getTimestamp ()
{
return $this->config_timestamp === null ?
$this->config_timestamp = filemtime($this->getConfigFilepath()) :
$this->config_timestamp;
}
private function parseConfigResourceName($config_resource)
{
if (empty($config_resource))
return false;
if (strpos($config_resource, ':') === false) {
// no resource given, use default
$this->config_resource_type = $this->smarty->default_config_type;
$this->config_resource_name = $config_resource;
} else {
// get type and name from path
list($this->config_resource_type, $this->config_resource_name) = explode(':', $config_resource, 2);
if (strlen($this->config_resource_type) == 1) {
// 1 char is not resource type, but part of filepath
$this->config_resource_type = $this->smarty->default_config_type;
$this->config_resource_name = $config_resource;
} else {
$this->config_resource_type = strtolower($this->config_resource_type);
}
}
return true;
}
/*
* get system filepath to config
*/
public function buildConfigFilepath ()
{
foreach((array)$this->smarty->config_dir as $_config_dir) {
if (strpos('/\\', substr($_config_dir, -1)) === false) {
$_config_dir .= DS;
}
$_filepath = $_config_dir . $this->config_resource_name;
if (file_exists($_filepath))
return $_filepath;
}
// check for absolute path
if (file_exists($this->config_resource_name))
return $this->config_resource_name;
// no tpl file found
throw new SmartyException("Unable to load config file \"{$this->config_resource_name}\"");
return false;
}
/**
* Read config file source
*
* @return string content of source file
*/
/**
* Returns the template source code
*
* The template source is being read by the actual resource handler
*
* @return string the template source
*/
public function getConfigSource ()
{
if ($this->config_source === null) {
if ($this->readConfigSource($this) === false) {
throw new SmartyException("Unable to load config file \"{$this->config_resource_name}\"");
}
}
return $this->config_source;
}
public function readConfigSource()
{
// read source file
if (file_exists($this->getConfigFilepath())) {
$this->config_source = file_get_contents($this->getConfigFilepath());
return true;
} else {
return false;
}
}
/**
* 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;
}
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;
$_filepath = sha1($this->config_resource_name . $_flag);
// if use_sub_dirs, break file into directories
if ($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 = $this->smarty->compile_dir;
if (substr($_compile_dir, -1) != DS) {
$_compile_dir .= DS;
}
return $_compile_dir . $_filepath . '.' . basename($this->config_resource_name) . '.config' . '.php';
}
/**
* Returns the timpestamp 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->getTimestamp ()):
$this->mustCompile;
}
/**
* Returns the compiled config file
*
* It checks if the config file must be compiled or just read the compiled version
*
* @return string the compiled config file
*/
public function getCompiledConfig ()
{
if ($this->compiled_config === null) {
// see if template needs compiling.
if ($this->mustCompile()) {
$this->compileConfigSource();
} else {
$this->compiled_config = file_get_contents($this->getCompiledFilepath());
}
}
return $this->compiled_config;
}
/**
* Compiles the config files
*/
public function compileConfigSource ()
{
// compile template
if (!is_object($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 $e;
}
// compiling succeded
// write compiled template
Smarty_Internal_Write_File::writeFile($this->getCompiledFilepath(), $this->getCompiledConfig(), $this->smarty);
}
/*
* load config variables
*
* @param mixed $sections array of section names, single section or null
* @param object $scope global,parent or local
*/
public function loadConfigVars ($sections = null, $scope = 'local')
{
if ($this->data instanceof Smarty_Internal_Template) {
$this->data->properties['file_dependency'][sha1($this->getConfigFilepath())] = array($this->getConfigFilepath(), $this->getTimestamp(),'file');
}
if ($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)$value);
}
}
// scan sections
foreach ($_config_vars['sections'] as $this_section => $dummy) {
if ($sections == null || in_array($this_section, (array)$sections)) {
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);
}
}
}
}
}
}
?>