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  • Committer: galaxyAbstractor
  • Date: 2013-04-10 15:49:32 UTC
  • mto: (19.1.5 lenasys)
  • mto: This revision was merged to the branch mainline in revision 23.
  • Revision ID: galaxyabstractor@gmail.com-20130410154932-4vizlzk0ar5gykvi
* Added an simple admin panel to the codeviewer-cmssy stuff
* Redesigned a bit like the mockups - still stuff to come
* Implemented the codeviewer + admin panel again using the Framework CodeIgniter instead 

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codeigniter/system/core/Hooks.php
 
1
<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
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/**
 
3
 * CodeIgniter
 
4
 *
 
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 * An open source application development framework for PHP 5.1.6 or newer
 
6
 *
 
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 * @package             CodeIgniter
 
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 * @author              ExpressionEngine Dev Team
 
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 * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
 
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 * @license             http://codeigniter.com/user_guide/license.html
 
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 * @link                http://codeigniter.com
 
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 * @since               Version 1.0
 
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 * @filesource
 
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 */
 
15
 
 
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// ------------------------------------------------------------------------
 
17
 
 
18
/**
 
19
 * CodeIgniter Hooks Class
 
20
 *
 
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 * Provides a mechanism to extend the base system without hacking.
 
22
 *
 
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 * @package             CodeIgniter
 
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 * @subpackage  Libraries
 
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 * @category    Libraries
 
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 * @author              ExpressionEngine Dev Team
 
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 * @link                http://codeigniter.com/user_guide/libraries/encryption.html
 
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 */
 
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class CI_Hooks {
 
30
 
 
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        /**
 
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         * Determines wether hooks are enabled
 
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         *
 
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         * @var bool
 
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         */
 
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        var $enabled            = FALSE;
 
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        /**
 
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         * List of all hooks set in config/hooks.php
 
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         *
 
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         * @var array
 
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         */
 
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        var $hooks                      = array();
 
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        /**
 
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         * Determines wether hook is in progress, used to prevent infinte loops
 
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         *
 
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         * @var bool
 
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         */
 
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        var $in_progress        = FALSE;
 
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        /**
 
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         * Constructor
 
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         *
 
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         */
 
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        function __construct()
 
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        {
 
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                $this->_initialize();
 
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                log_message('debug', "Hooks Class Initialized");
 
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        }
 
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        // --------------------------------------------------------------------
 
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        /**
 
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         * Initialize the Hooks Preferences
 
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         *
 
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         * @access      private
 
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         * @return      void
 
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         */
 
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        function _initialize()
 
69
        {
 
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                $CFG =& load_class('Config', 'core');
 
71
 
 
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                // If hooks are not enabled in the config file
 
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                // there is nothing else to do
 
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                if ($CFG->item('enable_hooks') == FALSE)
 
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                {
 
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                        return;
 
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                }
 
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                // Grab the "hooks" definition file.
 
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                // If there are no hooks, we're done.
 
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                if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/hooks.php'))
 
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                {
 
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                    include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php');
 
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                }
 
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                elseif (is_file(APPPATH.'config/hooks.php'))
 
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                {
 
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                        include(APPPATH.'config/hooks.php');
 
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                }
 
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                if ( ! isset($hook) OR ! is_array($hook))
 
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                {
 
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                        return;
 
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                }
 
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                $this->hooks =& $hook;
 
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                $this->enabled = TRUE;
 
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        }
 
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        // --------------------------------------------------------------------
 
103
 
 
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        /**
 
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         * Call Hook
 
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         *
 
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         * Calls a particular hook
 
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         *
 
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         * @access      private
 
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         * @param       string  the hook name
 
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         * @return      mixed
 
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         */
 
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        function _call_hook($which = '')
 
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        {
 
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                if ( ! $this->enabled OR ! isset($this->hooks[$which]))
 
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                {
 
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                        return FALSE;
 
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                }
 
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                if (isset($this->hooks[$which][0]) AND is_array($this->hooks[$which][0]))
 
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                {
 
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                        foreach ($this->hooks[$which] as $val)
 
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                        {
 
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                                $this->_run_hook($val);
 
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                        }
 
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                }
 
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                else
 
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                {
 
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                        $this->_run_hook($this->hooks[$which]);
 
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                }
 
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                return TRUE;
 
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        }
 
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        // --------------------------------------------------------------------
 
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        /**
 
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         * Run Hook
 
139
         *
 
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         * Runs a particular hook
 
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         *
 
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         * @access      private
 
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         * @param       array   the hook details
 
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         * @return      bool
 
145
         */
 
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        function _run_hook($data)
 
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        {
 
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                if ( ! is_array($data))
 
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                {
 
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                        return FALSE;
 
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                }
 
152
 
 
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                // -----------------------------------
 
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                // Safety - Prevents run-away loops
 
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                // -----------------------------------
 
156
 
 
157
                // If the script being called happens to have the same
 
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                // hook call within it a loop can happen
 
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                if ($this->in_progress == TRUE)
 
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                {
 
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                        return;
 
163
                }
 
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                // -----------------------------------
 
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                // Set file path
 
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                // -----------------------------------
 
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                if ( ! isset($data['filepath']) OR ! isset($data['filename']))
 
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                {
 
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                        return FALSE;
 
172
                }
 
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174
                $filepath = APPPATH.$data['filepath'].'/'.$data['filename'];
 
175
 
 
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                if ( ! file_exists($filepath))
 
177
                {
 
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                        return FALSE;
 
179
                }
 
180
 
 
181
                // -----------------------------------
 
182
                // Set class/function name
 
183
                // -----------------------------------
 
184
 
 
185
                $class          = FALSE;
 
186
                $function       = FALSE;
 
187
                $params         = '';
 
188
 
 
189
                if (isset($data['class']) AND $data['class'] != '')
 
190
                {
 
191
                        $class = $data['class'];
 
192
                }
 
193
 
 
194
                if (isset($data['function']))
 
195
                {
 
196
                        $function = $data['function'];
 
197
                }
 
198
 
 
199
                if (isset($data['params']))
 
200
                {
 
201
                        $params = $data['params'];
 
202
                }
 
203
 
 
204
                if ($class === FALSE AND $function === FALSE)
 
205
                {
 
206
                        return FALSE;
 
207
                }
 
208
 
 
209
                // -----------------------------------
 
210
                // Set the in_progress flag
 
211
                // -----------------------------------
 
212
 
 
213
                $this->in_progress = TRUE;
 
214
 
 
215
                // -----------------------------------
 
216
                // Call the requested class and/or function
 
217
                // -----------------------------------
 
218
 
 
219
                if ($class !== FALSE)
 
220
                {
 
221
                        if ( ! class_exists($class))
 
222
                        {
 
223
                                require($filepath);
 
224
                        }
 
225
 
 
226
                        $HOOK = new $class;
 
227
                        $HOOK->$function($params);
 
228
                }
 
229
                else
 
230
                {
 
231
                        if ( ! function_exists($function))
 
232
                        {
 
233
                                require($filepath);
 
234
                        }
 
235
 
 
236
                        $function($params);
 
237
                }
 
238
 
 
239
                $this->in_progress = FALSE;
 
240
                return TRUE;
 
241
        }
 
242
 
 
243
}
 
244
 
 
245
// END CI_Hooks class
 
246
 
 
247
/* End of file Hooks.php */
 
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/* Location: ./system/core/Hooks.php */
 
 
b'\\ No newline at end of file'