Viewing file:  ConfigData.php (4.56 KB) -rw-rw-rw-
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<?php
/**
* Class W3_ConfigData
*/
class W3_ConfigData {
/*
* Normalized data
* @var array
*/
public $data = array();
/*
* Array of config keys descriptors. In a format of
* <key> => array('type' => <key type>, 'default' => <default value>)
*
* @var array
*/
private $_keys;
/*
* Maps http key to options key.
* Fixes problem when php replaces 'my.super_option' to 'my_super_option'
* <http name> => <config name>
*
* @var array
*/
private $_http_keys_map;
/**
* Constructor
*/
function __construct($keys) {
$this->data = array('version' => W3TC_VERSION);
$this->_keys = $keys;
$this->_http_keys_map = array();
foreach (array_keys($keys) as $key) {
$http_key = str_replace('.', '_', $key);
$this->_http_keys_map[$http_key] = $key;
// add also non-escaped key
$this->_http_keys_map[$key] = $key;
}
}
/*
* Converts configuration key returned in http _GET/_POST
* to configuration key
*
* @param $http_key string
* @return string
*/
function resolve_http_key($http_key) {
if (!isset($this->_http_keys_map[$http_key]))
return null;
return $this->_http_keys_map[$http_key];
}
/*
* Removes data
*/
function clear() {
$this->data = array('version' => W3TC_VERSION);
}
/**
* Sets config value
*
* @param string $key
* @param string $value
* @return mixed value set
*/
function set($key, $value) {
if (!array_key_exists($key, $this->_keys))
return null;
$type = $this->_keys[$key]['type'];
if (!($type == 'array' && is_string($value)))
settype($value, $type);
else {
$value = str_replace("\r\n", "\n", $value);
$value = explode("\n", $value);
}
$this->data[$key] = $value;
return $value;
}
/**
* Sets default values
*/
function set_defaults() {
foreach ($this->_keys as $key => $value)
$this->data[$key] = $value['default'];
}
/**
* Sets group of keys
*
* @param $data array
*/
function set_group($data) {
foreach ($data as $key => $value)
$this->set($key, $value);
}
/**
* Reads config from file and returns it's content as array (or null)
*
* @param string $filename
* @param bool $unserialize
* @return array or null
*/
static function get_array_from_file($filename, $unserialize = false) {
if (file_exists($filename) && is_readable($filename)) {
// include errors not hidden by @ since they still terminate
// process (code not functional), but hides reason why
if ($unserialize) {
$content = file_get_contents($filename);
$content = substr($content, 13);
$config = @unserialize($content);
if (!$config)
return null;
} else {
/** @var $filename array */
// including file directly instead of read+eval causes constant
// problems with APC, ZendCache, and WSOD in a case of
// broken config file, still doesnt affect runtime since
// config cache is used
$content = @file_get_contents($filename);
$config = @eval(substr($content, 5));
}
if (is_array($config)) {
return $config;
}
}
return null;
}
/**
* Reads config from file using "set" method to fill object with data.
*
* @param string $filename
* @param bool $unserialize
* @return boolean
*/
function read($filename, $unserialize = false) {
$config = W3_ConfigData::get_array_from_file($filename, $unserialize);
if (is_null($config))
return false;
foreach ($config as $key => $value)
$this->set($key, $value);
return true;
}
/**
* Saves modified config
*/
function write($filename, $serialize = false) {
w3_require_once(W3TC_INC_DIR . '/functions/file.php');
if ($serialize) {
$config = '<?php exit;?>' . serialize($this->data);
} else {
$config = w3tc_format_data_as_settings_file($this->data);
}
w3_file_put_contents_atomic($filename, $config);
}
}
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