application/helpers/config.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * Help class for handling config items transparently,
   4  * i.e independent of storage location (file or database)
   5  */
   6 class config_Core
   7 {
   8         /**
   9          * Dummy value to compare to when ... no config was found!
  10          */
  11         const CONFIG_NOT_FOUND = null;
  12
  13         /**
  14         *       Fetch config item from db or config file
  15         *       If $page is set it will fetch for a page-specific
  16         *       setting for current user
  17         */
  18         public static function get($config_str=false, $page='', $save=false)
  19         {
  20                 $config_str = trim($config_str);
  21                 if (empty($config_str) || !is_string($config_str)) {
  22                         return false;
  23                 }
  24
  25                 $setting = self::CONFIG_NOT_FOUND;
  26
  27                 # check for database value
  28                 $cfg = Ninja_setting_Model::fetch_page_setting($config_str, $page);
  29                 if ($cfg!==false) {
  30                         $setting = $cfg->setting;
  31                 }
  32
  33                 if ($setting === self::CONFIG_NOT_FOUND) {
  34                         # if nothing was found - try the config file
  35                         $setting = Kohana::config($config_str, false, false);
  36                         if (is_array($setting) && empty($setting)) {
  37                                 $setting = false;
  38                         } elseif ($save) {
  39                                 # save to database and session as user setting
  40                                 Ninja_setting_Model::save_page_setting($config_str, $page, $setting);
  41                         }
  42                 }
  43
  44                 return $setting;
  45         }
  46
  47         /**
  48         *       Fetch specific key from config file
  49         *       Default is cgi.cfg
  50         */
  51         public static function get_cgi_cfg_key($key=false, $file='cgi.cfg')
  52         {
  53                 $key = trim($key);
  54                 if (empty($key) || empty($file) || !Auth::instance()->logged_in())
  55                         return false;
  56
  57                 $session = Session::instance();
  58                 $val = $session->get($key, null);
  59                 if ($val === null) {
  60                         $val = arr::search(System_Model::parse_config_file($file), $key, null);
  61                         if (!is_null($val)) {
  62                                 # store value in session
  63                                 $session->set($key, $val);
  64                         }
  65                 }
  66                 return $val;
  67         }
  68
  69         /**
  70          * On a OP5 Monitor system, return the system version
  71          *
  72          * @return string
  73          */
  74         public static function get_version_info()
  75         {
  76                 static $version = NULL;
  77                 if ($version === NULL) {
  78                         $file = Kohana::config('config.version_info');
  79                         if (@is_readable($file)) {
  80                                 $handle = fopen($file, 'r');
  81                                 $contents = fread($handle, filesize($file));
  82                                 fclose($handle);
  83                                 $version = trim(str_replace('VERSION=','',$contents));
  84                         }
  85                 }
  86                 return $version;
  87         }
  88 }