<?php

/*
+--------------------------------------------------------------------------
|   Invision Power Board v2.1.3
|   ========================================
|   by Matthew Mecham
|   (c) 2001 - 2004 Invision Power Services
|   ========================================
+---------------------------------------------------------------------------
|
|   > IPB UPGRADE LOADER
|   > Script written by Matt Mecham
|   > Date started: 21st April 2004
|   > Interesting fact: Radiohead rock (still)
+--------------------------------------------------------------------------
*/


/**
* Upgrade wrapper
*
* Set-up and load module to run
*
* @package	InvisionPowerBoard
* @author   Matt Mecham
* @version	2.1
*/

/**
* Script type
*
*/
define( 'IPB_THIS_SCRIPT', 'upgrade'       );
define( 'IPB_LOAD_SQL'   , 'admin_queries' );

require_once( '../init.php' );

//-----------------------------------------------
// USER CONFIGURABLE ELEMENTS
//-----------------------------------------------

define( 'THIS_PATH'  , './'  );
define( 'UPGRADE_DIR', 'upgrade'  );

//===========================================================================
// MAIN PROGRAM
//===========================================================================

if ( TRIAL_VERSION )
{
	print "This feature is disabled in the trial version.";
	exit();
}

$INFO = array();

//--------------------------------
// Require our global functions
//--------------------------------

require ROOT_PATH   . "conf_global.php";
require ROOT_PATH   . "sources/ipsclass.php";
require KERNEL_PATH . "class_converge.php";
require THIS_PATH   . "core/functions.php";
require THIS_PATH   . "core/template.php";

# Initiate super-class
$ipsclass       = new ipsclass();
$ipsclass->vars = $INFO;

//--------------------------------
// The clocks a' tickin'
//--------------------------------
		
$Debug = new Debug;
$Debug->startTimer();

//--------------------------------
// Load the DB driver and such
//--------------------------------

$ipsclass->init_db_connection();

//--------------------------------
// Check to make sure we're not
// trying to update < 2.0.0
//--------------------------------

if ( ! $ipsclass->DB->field_exists( 'sub_id', 'subscriptions' ) OR ! $ipsclass->DB->field_exists( 'perm_id', 'forum_perms' ) )
{
	$ipsclass->boink_it( $INFO['board_url'].'/upgrade/upgrade.php' );
}

//--------------------------------
//  Set up our vars
//--------------------------------

$ipsclass->parse_incoming();

//--------------------------------
//  Set converge
//--------------------------------

$ipsclass->converge = new class_converge( $ipsclass->DB );

//--------------------------------
// Get cache...
//--------------------------------

$ipsclass->init_load_cache();

//--------------------------------
//  Initialize the FUNC
//--------------------------------

$ipsclass->initiate_ipsclass();

//--------------------------------
//  Set up our vars
//--------------------------------

$ipsclass->core               =  new core_functions();
$ipsclass->core->ipsclass     =& $ipsclass;

$ipsclass->template           =  new template();
$ipsclass->template->ipsclass =& $ipsclass;

//--------------------------------
// Get dir contents
//--------------------------------

$ipsclass->dir_contents = $ipsclass->core->get_dir_structure();

//--------------------------------
// Get DB contents
//--------------------------------

$ipsclass->db_contents  = $ipsclass->core->get_db_structure();
			
//--------------------------------
// Get latest ID...
//--------------------------------

# PHP 5.0.5 problem...
$tmp_var = array_reverse($ipsclass->dir_contents);
$ipsclass->last_poss_id = array_shift( $tmp_var );

//--------------------------------
// OK to disCO
//--------------------------------

$ipsclass->safe_act = array( 'recache', 'acpperms', 'templates', 'templatescache', 'settings', 'finish' );

//--------------------------------
// Get datafile
//--------------------------------

if ( ! $ipsclass->last_poss_id )
{
	$ipsclass->core->login_screen( "An error has occured, we are unable to determine the current version or if there are any required upgrade files left to run" );
}

if ( file_exists( THIS_PATH.'upg_'.$ipsclass->last_poss_id.'/version_history.php' ) )
{
	require_once( THIS_PATH.'upg_'.$ipsclass->last_poss_id.'/version_history.php' );
	
	$ipsclass->versions = $import_versions;
}
else
{
	$ipsclass->core->login_screen( "Could not locate the required upgrade script: 'upg_{$ipsclass->last_poss_id}/version_history.php'");
}

//--------------------------------
// Version logic check
//--------------------------------

$ipsclass->core->get_version_latest();

if ( ! $ipsclass->current_version )
{
	$ipsclass->core->login_screen( "An error has occured, we are unable to determine the current version or if there are any required upgrade files left to run" );
}
				
if ( ! $ipsclass->input['act'] )
{
	if ( $ipsclass->current_version >= intval( $ipsclass->current_upgrade ) )
	{
		$ipsclass->core->login_screen( "This IPB installation is up-to-date and there are no more upgrades required" );
	}
}

//--------------------------------
//  Get our loverly member
//--------------------------------

$ipsclass->member = $ipsclass->core->get_member();

//--------------------------------
// Log in?
//--------------------------------

if ( $ipsclass->input['act'] != 'login' )
{
	if ( ! $ipsclass->member['id'] )
	{
		$ipsclass->core->login_screen("You do not have access to this upgrade system.");
	}
	
	if ( $ipsclass->return_md5_check() != $ipsclass->securekey )
	{
		$ipsclass->core->login_screen("You do not have access to this upgrade system!");
	}
	
	if ( ! $ipsclass->member['g_access_cp'] )
	{
		$ipsclass->core->login_screen('You must be an admin to access this upgrade script');
	}
}
else
{
	//----------------------------------
	// We must have submitted the form
	// time to check some details.
	//----------------------------------
	
	if ( empty($ipsclass->input['username']) )
	{
		$ipsclass->core->login_screen("You must enter a username before proceeding");
	}
	
	if ( empty($ipsclass->input['password']) )
	{
		$ipsclass->core->login_screen("You must enter a password before proceeding");
	}
	
	//----------------------------------
	// Attempt to get the details from the
	// DB
	//----------------------------------
	
	$ipsclass->DB->query("SELECT m.*, g.* FROM ibf_members m, ibf_groups g WHERE LOWER(name)='".strtolower($ipsclass->input['username'])."' and m.mgroup=g.g_id");
	
	$mem = $ipsclass->DB->fetch_row();
	
	//----------------------------------
	// Get perms
	//----------------------------------
	
	if ( empty($mem['id']) )
	{
		$ipsclass->core->login_screen("Could not find a record matching that username, please check the spelling");
	}
	
	//----------------------------------
	// Load converge member
	//----------------------------------
	
	$ipsclass->converge->converge_load_member($mem['email']);
		
	if ( ! $ipsclass->converge->member['converge_id'] )
	{
		$ipsclass->core->login_screen("Could not find a record matching that username, please check the spelling");
	}
	
	//----------------------------------
	// Check converge pass
	//----------------------------------
	
	$pass = md5( $ipsclass->input['password'] );
	
	//------------------------------
	// Check password...
	//------------------------------
	
	if ( $ipsclass->converge->converge_authenticate_member( $pass ) != TRUE )
	{
		$ipsclass->core->login_screen("The password you entered is not correct");
	}
	else
	{
		if ( $mem['g_access_cp'] != 1 )
		{
			$ipsclass->core->login_screen("You do not have access to the administrative CP");
		}
		else
		{
		
			//----------------------------------
			// All is good, bounce onwards...
			//----------------------------------
			
			$ipsclass->member = $mem;
			
			$ipsclass->core->redirect( "index.php?act=work&loginkey={$mem['member_login_key']}&securekey=".$ipsclass->return_md5_check()."&mid={$mem['id']}", "Thanks for logging in...." );
		}
	}
}

//===========================================================================
// MAIN LOGIC...
//===========================================================================

//--------------------------------
// Get and run upgrade script
//--------------------------------

if ( ! in_array( $ipsclass->input['act'], $ipsclass->safe_act ) )
{
	if ( file_exists( THIS_PATH.'upg_'.$ipsclass->current_upgrade.'/version_upgrade.php' ) )
	{
		require_once( THIS_PATH.'upg_'.$ipsclass->current_upgrade.'/version_upgrade.php' );
		$runme           =  new version_upgrade();
		$runme->ipsclass =& $ipsclass;
		$runme->version_process();
	}
	else
	{
		$ipsclass->core->login_screen( "Could not locate the required upgrade script: 'upg_{$ipsclass->current_upgrade}/version_upgrade.php'");
	}
}

// Module(work) -> done  [ settings -> acpperms -> templatecomponents ] -> recache -> templates -> templatesrecache -> finish

switch ($ipsclass->input['act'])
{
	case 'recache':
		$ipsclass->core->rebuild_caches();
		break;
	case 'templates':
		$ipsclass->core->rebuild_templates();
		break;
	case 'templatescache':
		$ipsclass->core->rebuild_templates_cache();
		break;
	case 'finish':
		$ipsclass->core->upgrade_complete();
		break;
	case 'done':
		$ipsclass->core->module_complete();
		break;
	case 'work':
		$runme->auto_run();
		break;
	default:
		$ipsclass->core->login_screen();
		break;
}


?>