[1] | 1 | <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
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| 2 | /** |
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| 3 | * CodeIgniter |
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| 4 | * |
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| 5 | * An open source application development framework for PHP 5.1.6 or newer |
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| 6 | * |
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| 7 | * @package CodeIgniter |
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| 8 | * @author ExpressionEngine Dev Team |
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| 9 | * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
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| 10 | * @license http://codeigniter.com/user_guide/license.html |
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| 11 | * @link http://codeigniter.com |
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| 12 | * @since Version 1.0 |
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| 13 | * @filesource |
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| 14 | */ |
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| 15 | |
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| 16 | // ------------------------------------------------------------------------ |
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| 17 | |
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| 18 | /** |
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| 19 | * CodeIgniter Config Class |
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| 20 | * |
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| 21 | * This class contains functions that enable config files to be managed |
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| 22 | * |
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| 23 | * @package CodeIgniter |
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| 24 | * @subpackage Libraries |
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| 25 | * @category Libraries |
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| 26 | * @author ExpressionEngine Dev Team |
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| 27 | * @link http://codeigniter.com/user_guide/libraries/config.html |
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| 28 | */ |
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| 29 | class CI_Config { |
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| 30 | |
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| 31 | /** |
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| 32 | * List of all loaded config values |
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| 33 | * |
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| 34 | * @var array |
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| 35 | */ |
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| 36 | var $config = array(); |
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| 37 | /** |
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| 38 | * List of all loaded config files |
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| 39 | * |
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| 40 | * @var array |
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| 41 | */ |
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| 42 | var $is_loaded = array(); |
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| 43 | /** |
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| 44 | * List of paths to search when trying to load a config file |
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| 45 | * |
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| 46 | * @var array |
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| 47 | */ |
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| 48 | var $_config_paths = array(APPPATH); |
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| 49 | |
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| 50 | /** |
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| 51 | * Constructor |
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| 52 | * |
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| 53 | * Sets the $config data from the primary config.php file as a class variable |
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| 54 | * |
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| 55 | * @access public |
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| 56 | * @param string the config file name |
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| 57 | * @param boolean if configuration values should be loaded into their own section |
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| 58 | * @param boolean true if errors should just return false, false if an error message should be displayed |
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| 59 | * @return boolean if the file was successfully loaded or not |
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| 60 | */ |
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| 61 | function __construct() |
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| 62 | { |
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| 63 | $this->config =& get_config(); |
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| 64 | log_message('debug', "Config Class Initialized"); |
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| 65 | |
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| 66 | // Set the base_url automatically if none was provided |
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| 67 | if ($this->config['base_url'] == '') |
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| 68 | { |
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| 69 | if (isset($_SERVER['HTTP_HOST'])) |
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| 70 | { |
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| 71 | $base_url = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http'; |
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| 72 | $base_url .= '://'. $_SERVER['HTTP_HOST']; |
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| 73 | $base_url .= str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']); |
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| 74 | } |
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| 75 | |
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| 76 | else |
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| 77 | { |
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| 78 | $base_url = 'http://localhost/'; |
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| 79 | } |
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| 80 | |
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| 81 | $this->set_item('base_url', $base_url); |
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| 82 | } |
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| 83 | } |
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| 84 | |
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| 85 | // -------------------------------------------------------------------- |
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| 86 | |
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| 87 | /** |
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| 88 | * Load Config File |
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| 89 | * |
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| 90 | * @access public |
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| 91 | * @param string the config file name |
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| 92 | * @param boolean if configuration values should be loaded into their own section |
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| 93 | * @param boolean true if errors should just return false, false if an error message should be displayed |
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| 94 | * @return boolean if the file was loaded correctly |
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| 95 | */ |
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| 96 | function load($file = '', $use_sections = FALSE, $fail_gracefully = FALSE) |
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| 97 | { |
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| 98 | $file = ($file == '') ? 'config' : str_replace('.php', '', $file); |
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| 99 | $found = FALSE; |
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| 100 | $loaded = FALSE; |
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| 101 | |
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| 102 | $check_locations = defined('ENVIRONMENT') |
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| 103 | ? array(ENVIRONMENT.'/'.$file, $file) |
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| 104 | : array($file); |
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| 105 | |
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| 106 | foreach ($this->_config_paths as $path) |
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| 107 | { |
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| 108 | foreach ($check_locations as $location) |
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| 109 | { |
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| 110 | $file_path = $path.'config/'.$location.'.php'; |
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| 111 | |
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| 112 | if (in_array($file_path, $this->is_loaded, TRUE)) |
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| 113 | { |
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| 114 | $loaded = TRUE; |
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| 115 | continue 2; |
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| 116 | } |
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| 117 | |
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| 118 | if (file_exists($file_path)) |
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| 119 | { |
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| 120 | $found = TRUE; |
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| 121 | break; |
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| 122 | } |
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| 123 | } |
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| 124 | |
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| 125 | if ($found === FALSE) |
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| 126 | { |
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| 127 | continue; |
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| 128 | } |
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| 129 | |
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| 130 | include($file_path); |
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| 131 | |
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| 132 | if ( ! isset($config) OR ! is_array($config)) |
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| 133 | { |
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| 134 | if ($fail_gracefully === TRUE) |
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| 135 | { |
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| 136 | return FALSE; |
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| 137 | } |
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| 138 | show_error('Your '.$file_path.' file does not appear to contain a valid configuration array.'); |
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| 139 | } |
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| 140 | |
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| 141 | if ($use_sections === TRUE) |
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| 142 | { |
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| 143 | if (isset($this->config[$file])) |
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| 144 | { |
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| 145 | $this->config[$file] = array_merge($this->config[$file], $config); |
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| 146 | } |
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| 147 | else |
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| 148 | { |
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| 149 | $this->config[$file] = $config; |
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| 150 | } |
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| 151 | } |
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| 152 | else |
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| 153 | { |
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| 154 | $this->config = array_merge($this->config, $config); |
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| 155 | } |
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| 156 | |
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| 157 | $this->is_loaded[] = $file_path; |
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| 158 | unset($config); |
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| 159 | |
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| 160 | $loaded = TRUE; |
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| 161 | log_message('debug', 'Config file loaded: '.$file_path); |
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| 162 | break; |
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| 163 | } |
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| 164 | |
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| 165 | if ($loaded === FALSE) |
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| 166 | { |
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| 167 | if ($fail_gracefully === TRUE) |
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| 168 | { |
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| 169 | return FALSE; |
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| 170 | } |
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| 171 | show_error('The configuration file '.$file.'.php does not exist.'); |
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| 172 | } |
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| 173 | |
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| 174 | return TRUE; |
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| 175 | } |
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| 176 | |
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| 177 | // -------------------------------------------------------------------- |
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| 178 | |
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| 179 | /** |
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| 180 | * Fetch a config file item |
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| 181 | * |
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| 182 | * |
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| 183 | * @access public |
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| 184 | * @param string the config item name |
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| 185 | * @param string the index name |
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| 186 | * @param bool |
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| 187 | * @return string |
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| 188 | */ |
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| 189 | function item($item, $index = '') |
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| 190 | { |
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| 191 | if ($index == '') |
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| 192 | { |
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| 193 | if ( ! isset($this->config[$item])) |
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| 194 | { |
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| 195 | return FALSE; |
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| 196 | } |
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| 197 | |
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| 198 | $pref = $this->config[$item]; |
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| 199 | } |
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| 200 | else |
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| 201 | { |
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| 202 | if ( ! isset($this->config[$index])) |
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| 203 | { |
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| 204 | return FALSE; |
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| 205 | } |
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| 206 | |
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| 207 | if ( ! isset($this->config[$index][$item])) |
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| 208 | { |
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| 209 | return FALSE; |
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| 210 | } |
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| 211 | |
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| 212 | $pref = $this->config[$index][$item]; |
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| 213 | } |
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| 214 | |
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| 215 | return $pref; |
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| 216 | } |
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| 217 | |
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| 218 | // -------------------------------------------------------------------- |
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| 219 | |
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| 220 | /** |
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| 221 | * Fetch a config file item - adds slash after item (if item is not empty) |
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| 222 | * |
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| 223 | * @access public |
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| 224 | * @param string the config item name |
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| 225 | * @param bool |
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| 226 | * @return string |
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| 227 | */ |
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| 228 | function slash_item($item) |
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| 229 | { |
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| 230 | if ( ! isset($this->config[$item])) |
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| 231 | { |
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| 232 | return FALSE; |
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| 233 | } |
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| 234 | if( trim($this->config[$item]) == '') |
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| 235 | { |
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| 236 | return ''; |
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| 237 | } |
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| 238 | |
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| 239 | return rtrim($this->config[$item], '/').'/'; |
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| 240 | } |
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| 241 | |
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| 242 | // -------------------------------------------------------------------- |
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| 243 | |
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| 244 | /** |
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| 245 | * Site URL |
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| 246 | * Returns base_url . index_page [. uri_string] |
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| 247 | * |
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| 248 | * @access public |
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| 249 | * @param string the URI string |
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| 250 | * @return string |
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| 251 | */ |
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| 252 | function site_url($uri = '') |
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| 253 | { |
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| 254 | if ($uri == '') |
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| 255 | { |
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| 256 | return $this->slash_item('base_url').$this->item('index_page'); |
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| 257 | } |
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| 258 | |
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| 259 | if ($this->item('enable_query_strings') == FALSE) |
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| 260 | { |
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| 261 | $suffix = ($this->item('url_suffix') == FALSE) ? '' : $this->item('url_suffix'); |
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| 262 | return $this->slash_item('base_url').$this->slash_item('index_page').$this->_uri_string($uri).$suffix; |
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| 263 | } |
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| 264 | else |
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| 265 | { |
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| 266 | return $this->slash_item('base_url').$this->item('index_page').'?'.$this->_uri_string($uri); |
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| 267 | } |
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| 268 | } |
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| 269 | |
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| 270 | // ------------------------------------------------------------- |
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| 271 | |
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| 272 | /** |
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| 273 | * Base URL |
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| 274 | * Returns base_url [. uri_string] |
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| 275 | * |
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| 276 | * @access public |
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| 277 | * @param string $uri |
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| 278 | * @return string |
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| 279 | */ |
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| 280 | function base_url($uri = '') |
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| 281 | { |
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| 282 | return $this->slash_item('base_url').ltrim($this->_uri_string($uri), '/'); |
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| 283 | } |
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| 284 | |
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| 285 | // ------------------------------------------------------------- |
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| 286 | |
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| 287 | /** |
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| 288 | * Build URI string for use in Config::site_url() and Config::base_url() |
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| 289 | * |
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| 290 | * @access protected |
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| 291 | * @param $uri |
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| 292 | * @return string |
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| 293 | */ |
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| 294 | protected function _uri_string($uri) |
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| 295 | { |
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| 296 | if ($this->item('enable_query_strings') == FALSE) |
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| 297 | { |
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| 298 | if (is_array($uri)) |
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| 299 | { |
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| 300 | $uri = implode('/', $uri); |
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| 301 | } |
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| 302 | $uri = trim($uri, '/'); |
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| 303 | } |
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| 304 | else |
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| 305 | { |
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| 306 | if (is_array($uri)) |
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| 307 | { |
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| 308 | $i = 0; |
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| 309 | $str = ''; |
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| 310 | foreach ($uri as $key => $val) |
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| 311 | { |
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| 312 | $prefix = ($i == 0) ? '' : '&'; |
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| 313 | $str .= $prefix.$key.'='.$val; |
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| 314 | $i++; |
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| 315 | } |
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| 316 | $uri = $str; |
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| 317 | } |
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| 318 | } |
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| 319 | return $uri; |
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| 320 | } |
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| 321 | |
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| 322 | // -------------------------------------------------------------------- |
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| 323 | |
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| 324 | /** |
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| 325 | * System URL |
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| 326 | * |
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| 327 | * @access public |
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| 328 | * @return string |
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| 329 | */ |
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| 330 | function system_url() |
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| 331 | { |
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| 332 | $x = explode("/", preg_replace("|/*(.+?)/*$|", "\\1", BASEPATH)); |
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| 333 | return $this->slash_item('base_url').end($x).'/'; |
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| 334 | } |
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| 335 | |
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| 336 | // -------------------------------------------------------------------- |
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| 337 | |
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| 338 | /** |
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| 339 | * Set a config file item |
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| 340 | * |
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| 341 | * @access public |
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| 342 | * @param string the config item key |
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| 343 | * @param string the config item value |
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| 344 | * @return void |
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| 345 | */ |
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| 346 | function set_item($item, $value) |
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| 347 | { |
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| 348 | $this->config[$item] = $value; |
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| 349 | } |
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| 350 | |
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| 351 | // -------------------------------------------------------------------- |
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| 352 | |
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| 353 | /** |
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| 354 | * Assign to Config |
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| 355 | * |
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| 356 | * This function is called by the front controller (CodeIgniter.php) |
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| 357 | * after the Config class is instantiated. It permits config items |
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| 358 | * to be assigned or overriden by variables contained in the index.php file |
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| 359 | * |
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| 360 | * @access private |
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| 361 | * @param array |
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| 362 | * @return void |
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| 363 | */ |
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| 364 | function _assign_to_config($items = array()) |
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| 365 | { |
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| 366 | if (is_array($items)) |
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| 367 | { |
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| 368 | foreach ($items as $key => $val) |
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| 369 | { |
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| 370 | $this->set_item($key, $val); |
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| 371 | } |
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| 372 | } |
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| 373 | } |
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| 374 | } |
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| 375 | |
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| 376 | // END CI_Config class |
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| 377 | |
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| 378 | /* End of file Config.php */ |
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| 379 | /* Location: ./system/core/Config.php */ |
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