<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * * Licensed under the Open Software License version 3.0 * * This source file is subject to the Open Software License (OSL 3.0) that is * bundled with this package in the files license.txt / license.rst. It is * also available through the world wide web at this URL: * http://opensource.org/licenses/OSL-3.0 * If you did not receive a copy of the license and are unable to obtain it * through the world wide web, please send an email to * licensing@ellislab.com so we can send you a copy immediately. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 1.0 * @filesource */ // ------------------------------------------------------------------------ /** * CodeIgniter Config Class * * This class contains functions that enable config files to be managed * * @package CodeIgniter * @subpackage Libraries * @category Libraries * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/libraries/config.html */ class CI_Config { /** * List of all loaded config values * * @var array */ public $config = array(); /** * List of all loaded config files * * @var array */ public $is_loaded = array(); /** * List of paths to search when trying to load a config file. * This must be public as it's used by the Loader class. * * @var array */ public $_config_paths = array(APPPATH); /** * Constructor * * Sets the $config data from the primary config.php file as a class variable * * @param string the config file name * @param boolean if configuration values should be loaded into their own section * @param boolean true if errors should just return false, false if an error message should be displayed * @return boolean if the file was successfully loaded or not */ public function __construct() { $this->config =& get_config(); log_message('debug', 'Config Class Initialized'); // Set the base_url automatically if none was provided if ($this->config['base_url'] == '') { if (isset($_SERVER['HTTP_HOST'])) { $base_url = ! empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http'; $base_url .= '://'. $_SERVER['HTTP_HOST'] . str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']); } else { $base_url = 'http://localhost/'; } $this->set_item('base_url', $base_url); } } // -------------------------------------------------------------------- /** * Load Config File * * @param string the config file name * @param boolean if configuration values should be loaded into their own section * @param boolean true if errors should just return false, false if an error message should be displayed * @return boolean if the file was loaded correctly */ public function load($file = '', $use_sections = FALSE, $fail_gracefully = FALSE) { $file = ($file == '') ? 'config' : str_replace('.php', '', $file); $found = $loaded = FALSE; foreach ($this->_config_paths as $path) { $check_locations = defined('ENVIRONMENT') ? array(ENVIRONMENT.'/'.$file, $file) : array($file); foreach ($check_locations as $location) { $file_path = $path.'config/'.$location.'.php'; if (in_array($file_path, $this->is_loaded, TRUE)) { $loaded = TRUE; continue 2; } if (file_exists($file_path)) { $found = TRUE; break; } } if ($found === FALSE) { continue; } include($file_path); if ( ! isset($config) OR ! is_array($config)) { if ($fail_gracefully === TRUE) { return FALSE; } show_error('Your '.$file_path.' file does not appear to contain a valid configuration array.'); } if ($use_sections === TRUE) { if (isset($this->config[$file])) { $this->config[$file] = array_merge($this->config[$file], $config); } else { $this->config[$file] = $config; } } else { $this->config = array_merge($this->config, $config); } $this->is_loaded[] = $file_path; unset($config); $loaded = TRUE; log_message('debug', 'Config file loaded: '.$file_path); break; } if ($loaded === FALSE) { if ($fail_gracefully === TRUE) { return FALSE; } show_error('The configuration file '.$file.'.php'.' does not exist.'); } return TRUE; } // -------------------------------------------------------------------- /** * Fetch a config file item * * * @param string the config item name * @param string the index name * @param bool * @return string */ public function item($item, $index = '') { if ($index == '') { return isset($this->config[$item]) ? $this->config[$item] : FALSE; } return isset($this->config[$index], $this->config[$index][$item]) ? $this->config[$index][$item] : FALSE; } // -------------------------------------------------------------------- /** * Fetch a config file item - adds slash after item (if item is not empty) * * @param string the config item name * @param bool * @return string */ public function slash_item($item) { if ( ! isset($this->config[$item])) { return FALSE; } elseif (trim($this->config[$item]) == '') { return ''; } return rtrim($this->config[$item], '/').'/'; } // -------------------------------------------------------------------- /** * Site URL * Returns base_url . index_page [. uri_string] * * @param string the URI string * @return string */ public function site_url($uri = '') { if ($uri == '') { return $this->slash_item('base_url').$this->item('index_page'); } if ($this->item('enable_query_strings') == FALSE) { $suffix = ($this->item('url_suffix') == FALSE) ? '' : $this->item('url_suffix'); return $this->slash_item('base_url').$this->slash_item('index_page').$this->_uri_string($uri).$suffix; } else { return $this->slash_item('base_url').$this->item('index_page').'?'.$this->_uri_string($uri); } } // ------------------------------------------------------------- /** * Base URL * Returns base_url [. uri_string] * * @param string $uri * @return string */ public function base_url($uri = '') { return $this->slash_item('base_url').ltrim($this->_uri_string($uri),'/'); } // ------------------------------------------------------------- /** * Build URI string for use in Config::site_url() and Config::base_url() * * @param mixed $uri * @return string */ protected function _uri_string($uri) { if ($this->item('enable_query_strings') == FALSE) { if (is_array($uri)) { $uri = implode('/', $uri); } return trim($uri, '/'); } elseif (is_array($uri)) { $i = 0; $str = ''; foreach ($uri as $key => $val) { $prefix = ($i === 0) ? '' : '&'; $str .= $prefix.$key.'='.$val; $i++; } return $str; } return $uri; } // -------------------------------------------------------------------- /** * System URL * * @return string */ public function system_url() { $x = explode('/', preg_replace('|/*(.+?)/*$|', '\\1', BASEPATH)); return $this->slash_item('base_url').end($x).'/'; } // -------------------------------------------------------------------- /** * Set a config file item * * @param string the config item key * @param string the config item value * @return void */ public function set_item($item, $value) { $this->config[$item] = $value; } // -------------------------------------------------------------------- /** * Assign to Config * * This function is called by the front controller (CodeIgniter.php) * after the Config class is instantiated. It permits config items * to be assigned or overriden by variables contained in the index.php file * * @param array * @return void */ public function _assign_to_config($items = array()) { if (is_array($items)) { foreach ($items as $key => $val) { $this->set_item($key, $val); } } } } /* End of file Config.php */ /* Location: ./system/core/Config.php */