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/magehelp/system/core/CodeIgniter.php

https://bitbucket.org/jit_bec/shopifine
PHP | 401 lines | 141 code | 49 blank | 211 comment | 27 complexity | 36e5e4b01262e4c24b1e0436cdbffc13 MD5 | raw file
  1<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
  2/**
  3 * CodeIgniter
  4 *
  5 * An open source application development framework for PHP 5.1.6 or newer
  6 *
  7 * @package		CodeIgniter
  8 * @author		ExpressionEngine Dev Team
  9 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 10 * @license		http://codeigniter.com/user_guide/license.html
 11 * @link		http://codeigniter.com
 12 * @since		Version 1.0
 13 * @filesource
 14 */
 15
 16// ------------------------------------------------------------------------
 17
 18/**
 19 * System Initialization File
 20 *
 21 * Loads the base classes and executes the request.
 22 *
 23 * @package		CodeIgniter
 24 * @subpackage	codeigniter
 25 * @category	Front-controller
 26 * @author		ExpressionEngine Dev Team
 27 * @link		http://codeigniter.com/user_guide/
 28 */
 29
 30/**
 31 * CodeIgniter Version
 32 *
 33 * @var string
 34 *
 35 */
 36	define('CI_VERSION', '2.1.0');
 37
 38/**
 39 * CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
 40 *
 41 * @var boolean
 42 *
 43 */
 44	define('CI_CORE', FALSE);
 45
 46/*
 47 * ------------------------------------------------------
 48 *  Load the global functions
 49 * ------------------------------------------------------
 50 */
 51	require(BASEPATH.'core/Common.php');
 52
 53/*
 54 * ------------------------------------------------------
 55 *  Load the framework constants
 56 * ------------------------------------------------------
 57 */
 58	if (defined('ENVIRONMENT') AND file_exists(APPPATH.'config/'.ENVIRONMENT.'/constants.php'))
 59	{
 60		require(APPPATH.'config/'.ENVIRONMENT.'/constants.php');
 61	}
 62	else
 63	{
 64		require(APPPATH.'config/constants.php');
 65	}
 66
 67/*
 68 * ------------------------------------------------------
 69 *  Define a custom error handler so we can log PHP errors
 70 * ------------------------------------------------------
 71 */
 72	set_error_handler('_exception_handler');
 73
 74	if ( ! is_php('5.3'))
 75	{
 76		@set_magic_quotes_runtime(0); // Kill magic quotes
 77	}
 78
 79/*
 80 * ------------------------------------------------------
 81 *  Set the subclass_prefix
 82 * ------------------------------------------------------
 83 *
 84 * Normally the "subclass_prefix" is set in the config file.
 85 * The subclass prefix allows CI to know if a core class is
 86 * being extended via a library in the local application
 87 * "libraries" folder. Since CI allows config items to be
 88 * overriden via data set in the main index. php file,
 89 * before proceeding we need to know if a subclass_prefix
 90 * override exists.  If so, we will set this value now,
 91 * before any classes are loaded
 92 * Note: Since the config file data is cached it doesn't
 93 * hurt to load it here.
 94 */
 95	if (isset($assign_to_config['subclass_prefix']) AND $assign_to_config['subclass_prefix'] != '')
 96	{
 97		get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix']));
 98	}
 99
100/*
101 * ------------------------------------------------------
102 *  Set a liberal script execution time limit
103 * ------------------------------------------------------
104 */
105	if (function_exists("set_time_limit") == TRUE AND @ini_get("safe_mode") == 0)
106	{
107		@set_time_limit(300);
108	}
109
110/*
111 * ------------------------------------------------------
112 *  Start the timer... tick tock tick tock...
113 * ------------------------------------------------------
114 */
115	$BM =& load_class('Benchmark', 'core');
116	$BM->mark('total_execution_time_start');
117	$BM->mark('loading_time:_base_classes_start');
118
119/*
120 * ------------------------------------------------------
121 *  Instantiate the hooks class
122 * ------------------------------------------------------
123 */
124	$EXT =& load_class('Hooks', 'core');
125
126/*
127 * ------------------------------------------------------
128 *  Is there a "pre_system" hook?
129 * ------------------------------------------------------
130 */
131	$EXT->_call_hook('pre_system');
132
133/*
134 * ------------------------------------------------------
135 *  Instantiate the config class
136 * ------------------------------------------------------
137 */
138	$CFG =& load_class('Config', 'core');
139
140	// Do we have any manually set config items in the index.php file?
141	if (isset($assign_to_config))
142	{
143		$CFG->_assign_to_config($assign_to_config);
144	}
145
146/*
147 * ------------------------------------------------------
148 *  Instantiate the UTF-8 class
149 * ------------------------------------------------------
150 *
151 * Note: Order here is rather important as the UTF-8
152 * class needs to be used very early on, but it cannot
153 * properly determine if UTf-8 can be supported until
154 * after the Config class is instantiated.
155 *
156 */
157
158	$UNI =& load_class('Utf8', 'core');
159
160/*
161 * ------------------------------------------------------
162 *  Instantiate the URI class
163 * ------------------------------------------------------
164 */
165	$URI =& load_class('URI', 'core');
166
167/*
168 * ------------------------------------------------------
169 *  Instantiate the routing class and set the routing
170 * ------------------------------------------------------
171 */
172	$RTR =& load_class('Router', 'core');
173	$RTR->_set_routing();
174
175	// Set any routing overrides that may exist in the main index file
176	if (isset($routing))
177	{
178		$RTR->_set_overrides($routing);
179	}
180
181/*
182 * ------------------------------------------------------
183 *  Instantiate the output class
184 * ------------------------------------------------------
185 */
186	$OUT =& load_class('Output', 'core');
187
188/*
189 * ------------------------------------------------------
190 *	Is there a valid cache file?  If so, we're done...
191 * ------------------------------------------------------
192 */
193	if ($EXT->_call_hook('cache_override') === FALSE)
194	{
195		if ($OUT->_display_cache($CFG, $URI) == TRUE)
196		{
197			exit;
198		}
199	}
200
201/*
202 * -----------------------------------------------------
203 * Load the security class for xss and csrf support
204 * -----------------------------------------------------
205 */
206	$SEC =& load_class('Security', 'core');
207
208/*
209 * ------------------------------------------------------
210 *  Load the Input class and sanitize globals
211 * ------------------------------------------------------
212 */
213	$IN	=& load_class('Input', 'core');
214
215/*
216 * ------------------------------------------------------
217 *  Load the Language class
218 * ------------------------------------------------------
219 */
220	$LANG =& load_class('Lang', 'core');
221
222/*
223 * ------------------------------------------------------
224 *  Load the app controller and local controller
225 * ------------------------------------------------------
226 *
227 */
228	// Load the base controller class
229	require BASEPATH.'core/Controller.php';
230
231	function &get_instance()
232	{
233		return CI_Controller::get_instance();
234	}
235
236
237	if (file_exists(APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php'))
238	{
239		require APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php';
240	}
241
242	// Load the local application controller
243	// Note: The Router class automatically validates the controller path using the router->_validate_request().
244	// If this include fails it means that the default controller in the Routes.php file is not resolving to something valid.
245	if ( ! file_exists(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().'.php'))
246	{
247		show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.');
248	}
249
250	include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().'.php');
251
252	// Set a mark point for benchmarking
253	$BM->mark('loading_time:_base_classes_end');
254
255/*
256 * ------------------------------------------------------
257 *  Security check
258 * ------------------------------------------------------
259 *
260 *  None of the functions in the app controller or the
261 *  loader class can be called via the URI, nor can
262 *  controller functions that begin with an underscore
263 */
264	$class  = $RTR->fetch_class();
265	$method = $RTR->fetch_method();
266
267	if ( ! class_exists($class)
268		OR strncmp($method, '_', 1) == 0
269		OR in_array(strtolower($method), array_map('strtolower', get_class_methods('CI_Controller')))
270		)
271	{
272		if ( ! empty($RTR->routes['404_override']))
273		{
274			$x = explode('/', $RTR->routes['404_override']);
275			$class = $x[0];
276			$method = (isset($x[1]) ? $x[1] : 'index');
277			if ( ! class_exists($class))
278			{
279				if ( ! file_exists(APPPATH.'controllers/'.$class.'.php'))
280				{
281					show_404("{$class}/{$method}");
282				}
283
284				include_once(APPPATH.'controllers/'.$class.'.php');
285			}
286		}
287		else
288		{
289			show_404("{$class}/{$method}");
290		}
291	}
292
293/*
294 * ------------------------------------------------------
295 *  Is there a "pre_controller" hook?
296 * ------------------------------------------------------
297 */
298	$EXT->_call_hook('pre_controller');
299
300/*
301 * ------------------------------------------------------
302 *  Instantiate the requested controller
303 * ------------------------------------------------------
304 */
305	// Mark a start point so we can benchmark the controller
306	$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start');
307
308	$CI = new $class();
309
310/*
311 * ------------------------------------------------------
312 *  Is there a "post_controller_constructor" hook?
313 * ------------------------------------------------------
314 */
315	$EXT->_call_hook('post_controller_constructor');
316
317/*
318 * ------------------------------------------------------
319 *  Call the requested method
320 * ------------------------------------------------------
321 */
322	// Is there a "remap" function? If so, we call it instead
323	if (method_exists($CI, '_remap'))
324	{
325		$CI->_remap($method, array_slice($URI->rsegments, 2));
326	}
327	else
328	{
329		// is_callable() returns TRUE on some versions of PHP 5 for private and protected
330		// methods, so we'll use this workaround for consistent behavior
331		if ( ! in_array(strtolower($method), array_map('strtolower', get_class_methods($CI))))
332		{
333			// Check and see if we are using a 404 override and use it.
334			if ( ! empty($RTR->routes['404_override']))
335			{
336				$x = explode('/', $RTR->routes['404_override']);
337				$class = $x[0];
338				$method = (isset($x[1]) ? $x[1] : 'index');
339				if ( ! class_exists($class))
340				{
341					if ( ! file_exists(APPPATH.'controllers/'.$class.'.php'))
342					{
343						show_404("{$class}/{$method}");
344					}
345
346					include_once(APPPATH.'controllers/'.$class.'.php');
347					unset($CI);
348					$CI = new $class();
349				}
350			}
351			else
352			{
353				show_404("{$class}/{$method}");
354			}
355		}
356		// Call the requested method.
357		// Any URI segments present (besides the class/function) will be passed to the method for convenience
358		call_user_func_array(array(&$CI, $method), array_slice($URI->rsegments, 2));
359	}
360
361
362	// Mark a benchmark end point
363	$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_end');
364
365/*
366 * ------------------------------------------------------
367 *  Is there a "post_controller" hook?
368 * ------------------------------------------------------
369 */
370	$EXT->_call_hook('post_controller');
371
372/*
373 * ------------------------------------------------------
374 *  Send the final rendered output to the browser
375 * ------------------------------------------------------
376 */
377	if ($EXT->_call_hook('display_override') === FALSE)
378	{
379		$OUT->_display();
380	}
381
382/*
383 * ------------------------------------------------------
384 *  Is there a "post_system" hook?
385 * ------------------------------------------------------
386 */
387	$EXT->_call_hook('post_system');
388
389/*
390 * ------------------------------------------------------
391 *  Close the DB connection if one exists
392 * ------------------------------------------------------
393 */
394	if (class_exists('CI_DB') AND isset($CI->db))
395	{
396		$CI->db->close();
397	}
398
399
400/* End of file CodeIgniter.php */
401/* Location: ./system/core/CodeIgniter.php */