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379 lines
9.1 KiB
379 lines
9.1 KiB
<?php |
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/** |
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* CodeIgniter |
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* |
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* An open source application development framework for PHP |
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* |
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* This content is released under the MIT License (MIT) |
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* |
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* Copyright (c) 2014 - 2018, British Columbia Institute of Technology |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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* |
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* @package CodeIgniter |
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* @author EllisLab Dev Team |
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) |
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* @copyright Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/) |
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* @license http://opensource.org/licenses/MIT MIT License |
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* @link https://codeigniter.com |
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* @since Version 1.0.0 |
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* @filesource |
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*/ |
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defined('BASEPATH') OR exit('No direct script access allowed'); |
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/** |
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* Config Class |
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* |
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* This class contains functions that enable config files to be managed |
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* |
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* @package CodeIgniter |
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* @subpackage Libraries |
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* @category Libraries |
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* @author EllisLab Dev Team |
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* @link https://codeigniter.com/user_guide/libraries/config.html |
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*/ |
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class CI_Config { |
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/** |
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* List of all loaded config values |
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* |
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* @var array |
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*/ |
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public $config = array(); |
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/** |
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* List of all loaded config files |
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* |
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* @var array |
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*/ |
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public $is_loaded = array(); |
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/** |
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* List of paths to search when trying to load a config file. |
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* |
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* @used-by CI_Loader |
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* @var array |
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*/ |
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public $_config_paths = array(APPPATH); |
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// -------------------------------------------------------------------- |
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/** |
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* Class constructor |
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* |
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* Sets the $config data from the primary config.php file as a class variable. |
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* |
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* @return void |
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*/ |
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public function __construct() |
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{ |
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$this->config =& get_config(); |
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// Set the base_url automatically if none was provided |
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if (empty($this->config['base_url'])) |
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{ |
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if (isset($_SERVER['SERVER_ADDR'])) |
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{ |
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if (strpos($_SERVER['SERVER_ADDR'], ':') !== FALSE) |
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{ |
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$server_addr = '['.$_SERVER['SERVER_ADDR'].']'; |
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} |
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else |
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{ |
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$server_addr = $_SERVER['SERVER_ADDR']; |
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} |
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$base_url = (is_https() ? 'https' : 'http').'://'.$server_addr |
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.substr($_SERVER['SCRIPT_NAME'], 0, strpos($_SERVER['SCRIPT_NAME'], basename($_SERVER['SCRIPT_FILENAME']))); |
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} |
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else |
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{ |
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$base_url = 'http://localhost/'; |
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} |
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$this->set_item('base_url', $base_url); |
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} |
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log_message('info', 'Config Class Initialized'); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Load Config File |
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* |
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* @param string $file Configuration file name |
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* @param bool $use_sections Whether configuration values should be loaded into their own section |
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* @param bool $fail_gracefully Whether to just return FALSE or display an error message |
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* @return bool TRUE if the file was loaded correctly or FALSE on failure |
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*/ |
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public function load($file = '', $use_sections = FALSE, $fail_gracefully = FALSE) |
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{ |
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$file = ($file === '') ? 'config' : str_replace('.php', '', $file); |
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$loaded = FALSE; |
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foreach ($this->_config_paths as $path) |
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{ |
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foreach (array($file, ENVIRONMENT.DIRECTORY_SEPARATOR.$file) as $location) |
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{ |
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$file_path = $path.'config/'.$location.'.php'; |
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if (in_array($file_path, $this->is_loaded, TRUE)) |
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{ |
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return TRUE; |
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} |
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if ( ! file_exists($file_path)) |
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{ |
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continue; |
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} |
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include($file_path); |
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if ( ! isset($config) OR ! is_array($config)) |
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{ |
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if ($fail_gracefully === TRUE) |
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{ |
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return FALSE; |
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} |
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show_error('Your '.$file_path.' file does not appear to contain a valid configuration array.'); |
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} |
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if ($use_sections === TRUE) |
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{ |
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$this->config[$file] = isset($this->config[$file]) |
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? array_merge($this->config[$file], $config) |
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: $config; |
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} |
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else |
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{ |
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$this->config = array_merge($this->config, $config); |
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} |
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$this->is_loaded[] = $file_path; |
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$config = NULL; |
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$loaded = TRUE; |
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log_message('debug', 'Config file loaded: '.$file_path); |
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} |
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} |
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if ($loaded === TRUE) |
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{ |
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return TRUE; |
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} |
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elseif ($fail_gracefully === TRUE) |
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{ |
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return FALSE; |
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} |
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show_error('The configuration file '.$file.'.php does not exist.'); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Fetch a config file item |
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* |
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* @param string $item Config item name |
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* @param string $index Index name |
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* @return string|null The configuration item or NULL if the item doesn't exist |
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*/ |
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public function item($item, $index = '') |
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{ |
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if ($index == '') |
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{ |
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return isset($this->config[$item]) ? $this->config[$item] : NULL; |
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} |
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return isset($this->config[$index], $this->config[$index][$item]) ? $this->config[$index][$item] : NULL; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Fetch a config file item with slash appended (if not empty) |
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* |
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* @param string $item Config item name |
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* @return string|null The configuration item or NULL if the item doesn't exist |
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*/ |
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public function slash_item($item) |
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{ |
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if ( ! isset($this->config[$item])) |
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{ |
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return NULL; |
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} |
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elseif (trim($this->config[$item]) === '') |
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{ |
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return ''; |
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} |
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return rtrim($this->config[$item], '/').'/'; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Site URL |
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* |
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* Returns base_url . index_page [. uri_string] |
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* |
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* @uses CI_Config::_uri_string() |
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* |
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* @param string|string[] $uri URI string or an array of segments |
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* @param string $protocol |
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* @return string |
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*/ |
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public function site_url($uri = '', $protocol = NULL) |
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{ |
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$base_url = $this->slash_item('base_url'); |
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if (isset($protocol)) |
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{ |
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// For protocol-relative links |
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if ($protocol === '') |
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{ |
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$base_url = substr($base_url, strpos($base_url, '//')); |
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} |
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else |
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{ |
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$base_url = $protocol.substr($base_url, strpos($base_url, '://')); |
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} |
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} |
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if (empty($uri)) |
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{ |
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return $base_url.$this->item('index_page'); |
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} |
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$uri = $this->_uri_string($uri); |
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if ($this->item('enable_query_strings') === FALSE) |
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{ |
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$suffix = isset($this->config['url_suffix']) ? $this->config['url_suffix'] : ''; |
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if ($suffix !== '') |
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{ |
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if (($offset = strpos($uri, '?')) !== FALSE) |
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{ |
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$uri = substr($uri, 0, $offset).$suffix.substr($uri, $offset); |
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} |
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else |
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{ |
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$uri .= $suffix; |
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} |
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} |
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return $base_url.$this->slash_item('index_page').$uri; |
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} |
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elseif (strpos($uri, '?') === FALSE) |
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{ |
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$uri = '?'.$uri; |
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} |
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return $base_url.$this->item('index_page').$uri; |
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} |
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// ------------------------------------------------------------- |
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/** |
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* Base URL |
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* |
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* Returns base_url [. uri_string] |
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* |
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* @uses CI_Config::_uri_string() |
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* |
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* @param string|string[] $uri URI string or an array of segments |
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* @param string $protocol |
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* @return string |
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*/ |
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public function base_url($uri = '', $protocol = NULL) |
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{ |
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$base_url = $this->slash_item('base_url'); |
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if (isset($protocol)) |
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{ |
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// For protocol-relative links |
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if ($protocol === '') |
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{ |
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$base_url = substr($base_url, strpos($base_url, '//')); |
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} |
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else |
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{ |
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$base_url = $protocol.substr($base_url, strpos($base_url, '://')); |
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} |
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} |
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return $base_url.$this->_uri_string($uri); |
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} |
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// ------------------------------------------------------------- |
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/** |
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* Build URI string |
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* |
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* @used-by CI_Config::site_url() |
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* @used-by CI_Config::base_url() |
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* |
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* @param string|string[] $uri URI string or an array of segments |
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* @return string |
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*/ |
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protected function _uri_string($uri) |
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{ |
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if ($this->item('enable_query_strings') === FALSE) |
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{ |
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is_array($uri) && $uri = implode('/', $uri); |
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return ltrim($uri, '/'); |
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} |
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elseif (is_array($uri)) |
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{ |
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return http_build_query($uri); |
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} |
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return $uri; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* System URL |
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* |
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* @deprecated 3.0.0 Encourages insecure practices |
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* @return string |
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*/ |
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public function system_url() |
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{ |
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$x = explode('/', preg_replace('|/*(.+?)/*$|', '\\1', BASEPATH)); |
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return $this->slash_item('base_url').end($x).'/'; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set a config file item |
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* |
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* @param string $item Config item key |
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* @param string $value Config item value |
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* @return void |
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*/ |
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public function set_item($item, $value) |
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{ |
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$this->config[$item] = $value; |
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} |
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}
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