<?php
// This file initialize everything needed for YOURLS

// Include settings
if( file_exists(dirname(__FILE__).'/config.php') ) {
	// config.php in /includes/
	require_once( dirname(__FILE__).'/config.php' );
} elseif ( file_exists(dirname(dirname(__FILE__)).'/user/config.php') ) {
	// config.php in /user/
	require_once( dirname(dirname(__FILE__)).'/user/config.php' );
} else {
	// config.php not found :(
	die('<p class="error">Cannot find <tt>config.php</tt>.</p><p>Please read the <tt>readme.html</tt> to learn how to install YOURLS</p>');
}

// Check if config.php was properly updated for 1.4
if( !defined('YOURLS_DB_PREFIX') )
	die('<p class="error">Your <tt>config.php</tt> does not contain all the required constant definitions.</p><p>Please check <tt>config-sample.php</tt> and update your config accordingly, there are new stuffs!</p>');

	
// Define core constants that have not been user defined in config.php

// physical path of YOURLS root
if( !defined('YOURLS_ABSPATH') )
	define('YOURLS_ABSPATH', str_replace( '\\', '/', dirname(dirname(__FILE__)) ) );

// physical path of includes directory
if( !defined('YOURLS_INC') )
	define('YOURLS_INC', YOURLS_ABSPATH.'/includes' );

// physical path of user directory
if( !defined('YOURLS_USERDIR') )
	define('YOURLS_USERDIR', YOURLS_ABSPATH.'/user' );

// URL of user directory
if( !defined('YOURLS_USERURL') )
	define('YOURLS_USERURL', YOURLS_SITE.'/user');
	
// physical path of plugins directory
if( !defined('YOURLS_PLUGINDIR') )
	define('YOURLS_PLUGINDIR', YOURLS_USERDIR.'/plugins' );

// URL of plugins directory
if( !defined('YOURLS_PLUGINURL') )
	define('YOURLS_PLUGINURL', YOURLS_USERURL.'/plugins');
	
// physical path of pages directory
if( !defined('YOURLS_PAGEDIR') )
	define('YOURLS_PAGEDIR', YOURLS_ABSPATH.'/pages' );

// table to store URLs
if( !defined('YOURLS_DB_TABLE_URL') )
	define('YOURLS_DB_TABLE_URL', YOURLS_DB_PREFIX.'url');

// table to store options
if( !defined('YOURLS_DB_TABLE_OPTIONS') )
	define('YOURLS_DB_TABLE_OPTIONS', YOURLS_DB_PREFIX.'options');

// table to store hits, for stats
if( !defined('YOURLS_DB_TABLE_LOG') )
	define('YOURLS_DB_TABLE_LOG', YOURLS_DB_PREFIX.'log');

// minimum delay in sec before a same IP can add another URL. Note: logged in users are not throttled down.
if( !defined('YOURLS_FLOOD_DELAY_SECONDS') )
	define('YOURLS_FLOOD_DELAY_SECONDS', 15 );

// comma separated list of IPs that can bypass flood check.
if( !defined('YOURLS_FLOOD_IP_WHITELIST') )
	define('YOURLS_FLOOD_IP_WHITELIST', '' );

// life span of an auth cookie in seconds (60*60*24*7 = 7 days)
if( !defined('YOURLS_COOKIE_LIFE') )
	define( 'YOURLS_COOKIE_LIFE', 60*60*24*7 );

// life span of a nonce in seconds
if( !defined('YOURLS_NONCE_LIFE') )
	define( 'YOURLS_NONCE_LIFE', 43200 ); // 3600 * 12

// if set to true, disable stat logging (no use for it, too busy servers, ...)
if( !defined('YOURLS_NOSTATS') )
	define( 'YOURLS_NOSTATS', false );

// if set to true, force https:// in the admin area
if( !defined('YOURLS_ADMIN_SSL') )
	define( 'YOURLS_ADMIN_SSL', false );

// if set to true, verbose debug infos. Will break things. Don't enable.
if( !defined('YOURLS_DEBUG') )
	define( 'YOURLS_DEBUG', false );
	
// Error reporting
if (defined('YOURLS_DEBUG') && YOURLS_DEBUG == true) {
	error_reporting(E_ALL);
} else {
	error_reporting(E_ERROR | E_PARSE);
}

// Include all functions
require_once( YOURLS_INC.'/version.php' );
require_once( YOURLS_INC.'/functions.php');
require_once( YOURLS_INC.'/functions-formatting.php' );
require_once( YOURLS_INC.'/functions-compat.php' );
require_once( YOURLS_INC.'/functions-html.php' );
// Allow drop-in replacement for the DB engine
if( file_exists( YOURLS_USERDIR.'/db.php' ) ) {
	require_once( YOURLS_USERDIR.'/db.php' );
} else {
	require_once( YOURLS_INC.'/class-mysql.php' );
}
require_once( YOURLS_INC.'/functions-plugins.php');
// Load auth functions if needed
if( yourls_is_private() )
	require_once( YOURLS_INC.'/functions-auth.php' );

// Allow early inclusion of a cache layer
if( file_exists( YOURLS_USERDIR.'/cache.php' ) )
	require_once( YOURLS_USERDIR.'/cache.php' );
	
// If request for an admin page is http:// and SSL is required, redirect
if( yourls_is_admin() && yourls_needs_ssl() && !yourls_is_ssl() ) {
	if ( 0 === strpos($_SERVER['REQUEST_URI'], 'http') ) {
		yourls_redirect( preg_replace('|^http://|', 'https://', $_SERVER['REQUEST_URI']) );
		exit();
	} else {
		yourls_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
		exit();
	}
}

// Fix REQUEST_URI for IIS
yourls_fix_request_uri();

// Create the YOURLS object $ydb that will contain everything we globally need
global $ydb;
yourls_db_connect();

// Read options right from start
yourls_get_all_options();

// Register shutdown function
register_shutdown_function( 'yourls_shutdown' );

// Core now loaded
yourls_do_action( 'init' ); // plugins can't see this, not loaded yet

// Check if we are in maintenance mode
yourls_check_maintenance_mode();

// Check if need to redirect to install procedure
if( !yourls_is_installed() && ( !defined('YOURLS_INSTALLING') || YOURLS_INSTALLING != true ) ) {
	yourls_redirect( yourls_admin_url( 'install.php' ), 302 );
}

// Check if upgrade is needed.
// Note: this is bypassable with define('YOURLS_NO_UPGRADE_CHECK', true)
// This is also bypassed if YOURLS_INSTALLING
if (
	( !defined('YOURLS_NO_UPGRADE_CHECK') || YOURLS_NO_UPGRADE_CHECK != true )
	&&  
	( !defined('YOURLS_INSTALLING') || YOURLS_INSTALLING != true )
) {
	if ( yourls_upgrade_is_needed() ) {
		yourls_redirect( YOURLS_SITE .'/admin/upgrade.php', 302 );
	}
}

// Init all plugins
yourls_load_plugins();
yourls_do_action( 'plugins_loaded' );

if( yourls_is_admin() )
	yourls_do_action( 'admin_init' );