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<?php
/**
* PhpReader file
*
* PHP 5
*
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice
*
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://book.cakephp.org/2.0/en/development/configuration.html#loading-configuration-files CakePHP(tm) Configuration
* @package Cake.Configure
* @since CakePHP(tm) v 2.0
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
/**
* PHP Reader allows Configure to load configuration values from
* files containing simple PHP arrays.
*
* Files compatible with PhpReader should define a `$config` variable, that
* contains all of the configuration data contained in the file.
*
* @package Cake.Configure
*/
class PhpReader implements ConfigReaderInterface {
/**
* The path this reader finds files on.
*
* @var string
*/
protected $_path = null;
/**
* Constructor for PHP Config file reading.
*
* @param string $path The path to read config files from. Defaults to APP . 'Config' . DS
*/
public function __construct($path = null) {
if (!$path) {
$path = APP . 'Config' . DS;
}
$this->_path = $path;
}
/**
* Read a config file and return its contents.
*
* Files with `.` in the name will be treated as values in plugins. Instead of reading from
* the initialized path, plugin keys will be located using App::pluginPath().
*
* @param string $key The identifier to read from. If the key has a . it will be treated
* as a plugin prefix.
* @return array Parsed configuration values.
* @throws ConfigureException when files don't exist or they don't contain `$config`.
* Or when files contain '..' as this could lead to abusive reads.
*/
public function read($key) {
if (strpos($key, '..') !== false) {
throw new ConfigureException(__d('cake_dev', 'Cannot load configuration files with ../ in them.'));
}
if (substr($key, -4) === '.php') {
$key = substr($key, 0, -4);
}
list($plugin, $key) = pluginSplit($key);
if ($plugin) {
$file = App::pluginPath($plugin) . 'Config' . DS . $key;
} else {
$file = $this->_path . $key;
}
$file .= '.php';
if (!is_file($file)) {
if (!is_file(substr($file, 0, -4))) {
throw new ConfigureException(__d('cake_dev', 'Could not load configuration files: %s or %s', $file, substr($file, 0, -4)));
}
}
include $file;
if (!isset($config)) {
throw new ConfigureException(
sprintf(__d('cake_dev', 'No variable $config found in %s.php'), $file)
);
}
return $config;
}
/**
* Converts the provided $data into a string of PHP code that can
* be used saved into a file and loaded later.
*
* @param string $filename The filename to create on $this->_path.
* @param array $data Data to dump.
* @return int Bytes saved.
*/
public function dump($filename, $data) {
$contents = '<?php' . "\n" . '$config = ' . var_export($data, true) . ';';
return file_put_contents($this->_path . $filename, $contents);
}
}
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