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Diffstat (limited to 'system/core/CodeIgniter.php')
| -rw-r--r-- | system/core/CodeIgniter.php | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php new file mode 100644 index 000000000..5d5bb144b --- /dev/null +++ b/system/core/CodeIgniter.php @@ -0,0 +1,280 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 4.3.2 or newer + * + * @package CodeIgniter + * @author ExpressionEngine Dev Team + * @copyright Copyright (c) 2008 - 2010, EllisLab, Inc. + * @license http://codeigniter.com/user_guide/license.html + * @link http://codeigniter.com + * @since Version 1.0 + * @filesource + */ + +// ------------------------------------------------------------------------ + +/** + * System Front Controller + * + * Loads the base classes and executes the request. + * + * @package CodeIgniter + * @subpackage codeigniter + * @category Front-controller + * @author ExpressionEngine Dev Team + * @link http://codeigniter.com/user_guide/ + */ + +// CI Version +define('CI_VERSION', '1.7.2'); + +/* + * ------------------------------------------------------ + * Load the global functions + * ------------------------------------------------------ + */ +require(BASEPATH.'codeigniter/Common'.EXT); + +/* + * ------------------------------------------------------ + * Load the compatibility override functions + * ------------------------------------------------------ + */ +require(BASEPATH.'codeigniter/Compat'.EXT); + +/* + * ------------------------------------------------------ + * Load the framework constants + * ------------------------------------------------------ + */ +require(APPPATH.'config/constants'.EXT); + +/* + * ------------------------------------------------------ + * Define a custom error handler so we can log PHP errors + * ------------------------------------------------------ + */ +set_error_handler('_exception_handler'); + +if ( ! is_php('5.3')) +{ + @set_magic_quotes_runtime(0); // Kill magic quotes +} + +/* + * ------------------------------------------------------ + * Start the timer... tick tock tick tock... + * ------------------------------------------------------ + */ + +$BM =& load_class('Benchmark'); +$BM->mark('total_execution_time_start'); +$BM->mark('loading_time_base_classes_start'); + +/* + * ------------------------------------------------------ + * Instantiate the hooks class + * ------------------------------------------------------ + */ + +$EXT =& load_class('Hooks'); + +/* + * ------------------------------------------------------ + * Is there a "pre_system" hook? + * ------------------------------------------------------ + */ +$EXT->_call_hook('pre_system'); + +/* + * ------------------------------------------------------ + * Instantiate the base classes + * ------------------------------------------------------ + */ + +$CFG =& load_class('Config'); +$URI =& load_class('URI'); +$RTR =& load_class('Router'); +$OUT =& load_class('Output'); + +/* + * ------------------------------------------------------ + * Is there a valid cache file? If so, we're done... + * ------------------------------------------------------ + */ + +if ($EXT->_call_hook('cache_override') === FALSE) +{ + if ($OUT->_display_cache($CFG, $URI) == TRUE) + { + exit; + } +} + +/* + * ------------------------------------------------------ + * Load the remaining base classes + * ------------------------------------------------------ + */ + +$IN =& load_class('Input'); +$LANG =& load_class('Language'); + +/* + * ------------------------------------------------------ + * Load the app controller and local controller + * ------------------------------------------------------ + * + * Note: Due to the poor object handling in PHP 4 we'll + * conditionally load different versions of the base + * class. Retaining PHP 4 compatibility requires a bit of a hack. + * + * Note: The Loader class needs to be included first + * + */ +if ( ! is_php('5.0.0')) +{ + load_class('Loader', FALSE); + require(BASEPATH.'codeigniter/Base4'.EXT); +} +else +{ + require(BASEPATH.'codeigniter/Base5'.EXT); +} + +// Load the base controller class +load_class('Controller', FALSE); + +// Load the local application controller +// Note: The Router class automatically validates the controller path. If this include fails it +// means that the default controller in the Routes.php file is not resolving to something valid. +if ( ! file_exists(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT)) +{ + show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.'); +} + +include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT); + +// Set a mark point for benchmarking +$BM->mark('loading_time_base_classes_end'); + + +/* + * ------------------------------------------------------ + * Security check + * ------------------------------------------------------ + * + * None of the functions in the app controller or the + * loader class can be called via the URI, nor can + * controller functions that begin with an underscore + */ +$class = $RTR->fetch_class(); +$method = $RTR->fetch_method(); + +if ( ! class_exists($class) + OR $method == 'controller' + OR strncmp($method, '_', 1) == 0 + OR in_array(strtolower($method), array_map('strtolower', get_class_methods('Controller'))) + ) +{ + show_404("{$class}/{$method}"); +} + +/* + * ------------------------------------------------------ + * Is there a "pre_controller" hook? + * ------------------------------------------------------ + */ +$EXT->_call_hook('pre_controller'); + +/* + * ------------------------------------------------------ + * Instantiate the controller and call requested method + * ------------------------------------------------------ + */ + +// Mark a start point so we can benchmark the controller +$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start'); + +$CI = new $class(); + +// Is this a scaffolding request? +if ($RTR->scaffolding_request === TRUE) +{ + if ($EXT->_call_hook('scaffolding_override') === FALSE) + { + $CI->_ci_scaffolding(); + } +} +else +{ + /* + * ------------------------------------------------------ + * Is there a "post_controller_constructor" hook? + * ------------------------------------------------------ + */ + $EXT->_call_hook('post_controller_constructor'); + + // Is there a "remap" function? + if (method_exists($CI, '_remap')) + { + $CI->_remap($method); + } + else + { + // is_callable() returns TRUE on some versions of PHP 5 for private and protected + // methods, so we'll use this workaround for consistent behavior + if ( ! in_array(strtolower($method), array_map('strtolower', get_class_methods($CI)))) + { + show_404("{$class}/{$method}"); + } + + // Call the requested method. + // Any URI segments present (besides the class/function) will be passed to the method for convenience + call_user_func_array(array(&$CI, $method), array_slice($URI->rsegments, 2)); + } +} + +// 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'); + +/* + * ------------------------------------------------------ + * Close the DB connection if one exists + * ------------------------------------------------------ + */ +if (class_exists('CI_DB') AND isset($CI->db)) +{ + $CI->db->close(); +} + + +/* End of file CodeIgniter.php */ +/* Location: ./system/codeigniter/CodeIgniter.php */
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