381 lines
9.1 KiB
PHP
381 lines
9.1 KiB
PHP
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<?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) 2019 - 2022, CodeIgniter Foundation
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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 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
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* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
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* @license https://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/userguide3/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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