index.php

<?php
/**
 * This file acts as the "front controller" to your application. You can
 * configure your application, modules, and system directories here.
 * PHP error_reporting level may also be changed.
 *
 * @see http://kohanaphp.com
 */

/**
 * This checks to see if the site is in maintenance mode. Put your site
 * in maintenance mode by putting a 'maintenance.php' file in the root
 * directory of your site. (Same directory as this index.php file)
 *
 */
if (file_exists('maintenance.php'))
{
	header("Status: 503 Service Temporarily Unavailable");
	die(file_get_contents('maintenance.php'));
}

/**
 * Define the website environment status. When this flag is set to TRUE, some
 * module demonstration controllers will result in 404 errors. For more information
 * about this option, read the documentation about deploying Kohana.
 *
 * @see http://docs.kohanaphp.com/installation/deployment
 */
define('IN_PRODUCTION', TRUE);

/**
 * Website application directory. This directory should contain your application
 * configuration, controllers, models, views, and other resources.
 *
 * This path can be absolute or relative to this file.
 */
$kohana_application = 'application';

/**
 * Kohana modules directory. This directory should contain all the modules used
 * by your application. Modules are enabled and disabled by the application
 * configuration file.
 *
 * This path can be absolute or relative to this file.
 */
$kohana_modules = 'modules';

/**
 * Kohana system directory. This directory should contain the core/ directory,
 * and the resources you included in your download of Kohana.
 *
 * This path can be absolute or relative to this file.
 */
$kohana_system = 'system';

/**
 * Themes directory.
 *
 * This path can be absolute or relative to this file.
 */
$kohana_themes = 'themes';

/**
 * Plugin directory.
 *
 * This path can be absolute or relative to this file.
 */
$kohana_plugins = 'plugins';

/**
 * Media directory.
 *
 * This path can be absolute or relative to this file.
 */
$kohana_media = 'media';

/**
 * Test to make sure that Kohana is running on PHP 5.2 or newer. Once you are
 * sure that your environment is compatible with Kohana, you can comment this
 * line out. When running an application on a new server, uncomment this line
 * to check the PHP version quickly.
 */
version_compare(PHP_VERSION, '5.2', '<') and exit('Kohana requires PHP 5.2 or newer.');

/**
 * Set the error reporting level. Unless you have a special need, E_ALL is a
 * good level for error reporting.
 */
error_reporting(E_ALL & ~E_STRICT);

/**
 * Turning off display_errors will effectively disable Kohana error display
 * and logging. You can turn off Kohana errors in application/config/config.php
 */
ini_set('display_errors', TRUE);

/**
 * If you rename all of your .php files to a different extension, set the new
 * extension here. This option can left to .php, even if this file has a
 * different extension.
 */
define('EXT', '.php');

//
// DO NOT EDIT BELOW THIS LINE, UNLESS YOU FULLY UNDERSTAND THE IMPLICATIONS.
// ----------------------------------------------------------------------------
// $Id: index.php 3168 2008-07-21 01:34:36Z Shadowhand $
//

// Define the front controller name and docroot
define('DOCROOT', getcwd().DIRECTORY_SEPARATOR);
define('KOHANA',  basename(__FILE__));

// If the front controller is a symlink, change to the real docroot
is_link(KOHANA) and chdir(dirname(realpath(__FILE__)));

// Define application and system paths
define('APPPATH', str_replace('\\', '/', realpath($kohana_application)).'/');
define('THEMEPATH', str_replace('\\', '/', realpath($kohana_themes)).'/');
define('PLUGINPATH', str_replace('\\', '/', realpath($kohana_plugins)).'/');
define('MODPATH', str_replace('\\', '/', realpath($kohana_modules)).'/');
define('SYSPATH', str_replace('\\', '/', realpath($kohana_system)).'/');
define('MEDIAPATH', str_replace('\\', '/', realpath($kohana_media)).'/');

// Clean up
unset($kohana_application, $kohana_themes, $kohana_plugins, $kohana_modules, $kohana_system, $kohana_media);

if ( ! IN_PRODUCTION)
{
	// Check APPPATH
	if ( ! (is_dir(APPPATH) AND is_file(APPPATH.'config/config'.EXT)))
	{
		die
		(
			'<div style="width:80%;margin:50px auto;text-align:center;">'.
				'<h3>Application Directory Not Found</h3>'.
				'<p>The <code>$kohana_application</code> directory does not exist.</p>'.
				'<p>Set <code>$kohana_application</code> in <tt>'.KOHANA.'</tt> to a valid directory and refresh the page.</p>'.
			'</div>'
		);
	}

	// Check SYSPATH
	if ( ! (is_dir(SYSPATH) AND is_file(SYSPATH.'core/Bootstrap'.EXT)))
	{
		die
		(
			'<div style="width:80%;margin:50px auto;text-align:center;">'.
				'<h3>System Directory Not Found</h3>'.
				'<p>The <code>$kohana_system</code> directory does not exist.</p>'.
				'<p>Set <code>$kohana_system</code> in <tt>'.KOHANA.'</tt> to a valid directory and refresh the page.</p>'.
			'</div>'
		);
	}
}

// 
// Check if the application has been installed
// -------------------------------------------
// This has to be done before bootstrapping the Kohana framework
// 
// Does the installer directory exist?
if (file_exists(DOCROOT.DIRECTORY_SEPARATOR.'installer'))
{
	if ( ! file_exists(APPPATH.'config'.DIRECTORY_SEPARATOR.'database.php'))
	{
		// Redirect to the installer
		header("Location: ./installer");
		exit();
	}
}

// Initialize.
require SYSPATH.'core/Bootstrap'.EXT;