Source/carbon/libraries/Extensions.php

   1 <?php
   2 /*------------------------------------------------------------
   3 *  CarbonPHP framework (C) Tom Bell
   4 *  http://tombell.org.uk
   5 *------------------------------------------------------------*/
   6
   7 if (!defined('CARBON_PATH'))
   8 {
   9         exit('Direct script access is not allowed.');
  10 }
  11
  12 class Carbon_Extensions
  13 {
  14         private $extensions_enabled = false;
  15         private $extensions = array();
  16         private $in_progress = false;
  17
  18         public function __construct()
  19         {
  20                 $this->c_initialise();
  21
  22                 log_message('debug', 'Extensions class initialised.');
  23         }
  24
  25         private function c_initialise()
  26         {
  27                 $config = load_class('Config');
  28
  29                 if ($config->get_config_value('enable_extensions') == false)
  30                 {
  31                         return false;
  32                 }
  33
  34                 @include(APP_PATH . 'config/extensions' . FILE_EXT);
  35
  36                 if (!isset($extension) || !is_array($extension))
  37                 {
  38                         return false;
  39                 }
  40
  41                 $this->extensions = $extension;
  42                 $this->extensions_enabled = true;
  43         }
  44
  45         public function c_call_extension($which = '')
  46         {
  47                 if (!$this->extensions_enabled || !isset($this->extenions[$which]))
  48                 {
  49                         return false;
  50                 }
  51
  52                 if (isset($this->extensions[$which][0]) && is_array($this->extensions[$which][0]))
  53                 {
  54                         foreach ($this->extensions[$which] as $val)
  55                         {
  56                                 $this->c_run_extension($val);
  57                         }
  58                 }
  59                 else
  60                 {
  61                         $this->c_run_extension($this->extensions[$which]);
  62                 }
  63
  64                 return true;
  65         }
  66
  67         private function c_run_extension($data)
  68         {
  69                 if (!is_array($data))
  70                 {
  71                         return false;
  72                 }
  73
  74                 if ($this->in_progress == true)
  75                 {
  76                         return true;
  77                 }
  78
  79                 if (!isset($data['filepath']) || !isset($data['filename']))
  80                 {
  81                         return false;
  82                 }
  83
  84                 $filepath = APP_PATH . $data['filepath'] . '/' . $data['filename'];
  85
  86                 if (!file_exists($filepath))
  87                 {
  88                         return false;
  89                 }
  90
  91                 $class = false;
  92                 $method = false;
  93                 $params = '';
  94
  95                 if (isset($data['class']) && $data['class'] != '')
  96                 {
  97                         $class = $data['class'];
  98                 }
  99
 100                 if (isset($data['method']))
 101                 {
 102                         $method = $data['method'];
 103                 }
 104
 105                 if (isset($data['params']))
 106                 {
 107                         $params = $data['params'];
 108                 }
 109
 110                 if ($class === false && $method === false)
 111                 {
 112                         return false;
 113                 }
 114
 115                 $this->in_progess = true;
 116
 117                 if ($class !== false)
 118                 {
 119                         if (!class_exists($class))
 120                         {
 121                                 require($filepath);
 122                         }
 123
 124                         $ext = new $class;
 125                         $ext->$method($params);
 126                 }
 127                 else
 128                 {
 129                         if (!function_exists($method))
 130                         {
 131                                 require($filepath);
 132                         }
 133
 134                         $method($params);
 135                 }
 136
 137                 $this->in_progress = false;
 138
 139                 return true;
 140         }
 141 }
 142
 143 ?>