/wp-content/plugins/simple-forum/sf-control.php

<?php

/*

Plugin Name: Simple:Press

Version: 4.4.5

Plugin URI: http://simple-press.com

Description: Fully featured but simple page-based forum

Author: Andy Staines & Steve Klasen

Author URI: http://simple-press.com

WordPress Versions: 3.1 and above

For full acknowledgements click on the copyright/version strip

at the bottom of forum pages

*/



/*  Copyright 2006/2010  Andy Staines & Steve Klasen

	Please read the 'License' supplied with this plugin (goto help/documentation)

	and abide by it's few simple requests. Note that the Highslide JS library is free to use on non-commercial sites.

	Commercial sites should seek a license for a small fee of about $29US.



$LastChangedDate: 2011-06-25 07:24:41 -0700 (Sat, 25 Jun 2011) $

$Rev: 6398 $

*/



# -------------------------------------------------------------------------------------------------------------------



if (preg_match('#' . basename(__FILE__) . '#', $_SERVER['PHP_SELF']))

{

	die('Access Denied');

}



#==================================

# REMOVE FOR DISTRIBUTION -- UNCOMMENT THE NEXT TWO LINES IF DEBUG INFO REQUIRED.

#include_once (dirname(__FILE__).'/debug/sf-debug.php');

#define("SHOWDEBUG", true);

#==================================



global $is_IIS;



# hack for some IIS installations

if ($is_IIS && @ini_get('error_log') == '') @ini_set('error_log', 'syslog');



# try to increase backtrack limit

if ((int) @ini_get('pcre.backtrack_limit') < 10000000000) @ini_set('pcre.backtrack_limit', 10000000000);



# try to increase php memory

if (function_exists('memory_get_usage') && ((int) @ini_get('memory_limit') < abs(intval('64M')))) @ini_set('memory_limit', '64M');



# ----------------------------------------------------------

# Establist version and system control constants

# ----------------------------------------------------------

define('SFPLUGNAME',	'Simple:Press');

define('SFVERSION',		'4.4.5');

define('SFBUILD',		6398);

define('SFRELEASE',		'Release');



# ==================================================================

# Bootstrap

# ==================================================================



# ------------------------------------------------------------------

# Load global components

# Load anything that is required globally

# ------------------------------------------------------------------

global $wpdb, $ISFORUM, $ISFORUMADMIN, $CACHE, $SFSTATUS, $SFPATHS, $CONTENTLOADED, $ACTIVEPANEL, $SFALLOPTIONS;



$ISFORUM = false;

$ISFORUMADMIN = false;

$CONTENTLOADED = false;

$CACHE = array();

$ACTIVEPANEL = array();



# if this is a network upgrade, make sure we switch to the site being updated

# this is so the constants are defined for right blog

if (isset($_GET['sfnetworkid']))

{

    switch_to_blog(esc_sql($_GET['sfnetworkid']));

}



# ------------------------------------------------------------------

# DB Tables constants

# ------------------------------------------------------------------

if(!defined('SF_PREFIX')) {

	define('SF_PREFIX', $wpdb->prefix);

}



sf_initialise_cache();



include_once (dirname(__FILE__).'/sf-config.php');



include_once (dirname(__FILE__).'/library/sf-primitives.php');



$SFALLOPTIONS = sf_load_alloptions();



$SFPATHS = sf_get_option('sfconfig');

include_once (dirname(__FILE__).'/sf-constants.php');

sf_setup_sitewide_constants();



$SFSTATUS = sfg_get_system_status();



include_once (SF_PLUGIN_DIR.'/sf-includes.php');

sf_setup_global_includes();



include_once (SF_PLUGIN_DIR.'/sf-loader-global.php');



include_once (SF_PLUGIN_DIR.'/sf-hooks.php');

sf_setup_sitewide_hooks();



include_once (SF_PLUGIN_DIR.'/sf-loader-ahah.php');

include_once (SF_PLUGIN_DIR.'/credentials/sf-credentials.php');



# ------------------------------------------------------------------

# Plugin Activation

# ensure that permalink and rewrite rules are set on a re-activation

# after upgrade

# ------------------------------------------------------------------

register_activation_hook(__FILE__, 'sfg_update_permalink');

# ------------------------------------------------------------------



# ------------------------------------------------------------------

# sf_boot_forum()

# Called from hook: 'wp_print_scripts'

# Checks if a forum page (front and back) and loads the required

# javascripts

# ------------------------------------------------------------------

function sf_boot_forum()

{

	global $ISFORUM, $ISFORUMADMIN, $ACTIVEPANEL, $wp_query;



	if (is_admin())

	{

		sf_setup_sitewide_late_hooks();

		if ((isset($_GET['page'])) && (stristr($_GET['page'], 'simple-forum')) !== false)

		{

			$ISFORUMADMIN=true;

			sfa_set_activepanels();

			sfa_admin_load_js();

		}

	} else {

		if ((is_page()) && ($wp_query->post->ID == sf_get_option('sfpage')))

		{

			$ISFORUM=true;

			sf_setup_sitewide_late_hooks();

			sf_setup_global_constants();

			sf_setup_forum_constants();

			sf_setup_forum_includes();

			sf_setup_forum_hooks();

    		sf_load_front_js();

		} else {

			# non-forum page...

			sf_load_front_blog_js();

		}

	}

	return;

}



# ------------------------------------------------------------------

# sf_boot_forum_admin()

# Called from hook: 'admin_menu'

# Starts up the back end loading up the admin menus

# ------------------------------------------------------------------

function sf_boot_forum_admin()

{

	sf_setup_global_constants();

	sf_setup_admin_constants();

	sf_setup_admin_includes();

	sf_setup_admin_hooks();



	sfa_admin_menu();

	return;

}



# ------------------------------------------------------------------

# sf_check_header()

#

# Checks if this is the forum page loading and sets up the incudes

# and the page header

# Called by wp_head filter

# ------------------------------------------------------------------

function sf_check_header()

{

	global $ISFORUM, $sfvars, $wp_query, $sfglobals, $aioseop_options;



	if ($ISFORUM)

	{

		sf_setup_header();



		# If a PM request load PM files

		if (!empty($sfvars['pm']))

		{

			sf_setup_pm_includes();

		}

	} else {

		if(sf_get_option('sfannounceauto'))

		{

			echo '<script type="text/javascript" src="'.SFJSCRIPT.'forum/sf-forum.js"></script>' . "\n";

		}



        # is it a blog linked post and need to point canonical url to linke topic?

        $post = $wp_query->get_queried_object();

        if (!empty($post->ID) && $sfglobals['canonicalurl'] == false)

        {

      		$sfpostlinking = sf_get_option('sfpostlinking');

            $topic = sf_blog_links_control('read', $post->ID);

            if (!empty($topic) && $sfpostlinking['sflinkurls'] == 2) # point blog post to linked topic?

            {

                $forum_slug = sf_get_forum_slug($topic->forum_id);

                $topic_slug = sf_get_topic_slug($topic->topic_id);

                $url = sf_build_url($forum_slug, $topic_slug, 0, 0);

        		echo '<link rel="canonical" href="'.$url.'" />'."\n";

                $sfglobals['canonicalurl'] = true;

            }

        }



        # let wp canonical url run if we didnt do it

        if ($sfglobals['canonicalurl'] == false) rel_canonical();

	}

}



# ------------------------------------------------------------------

# sf_initialise_cache()

#

# Create the cache control array to stop wasted and multiple calls

# ro the building of permission caches and extender user object

# ------------------------------------------------------------------

function sf_initialise_cache()

{

	global $CACHE;



	$CACHE['user']=false;

	$CACHE['forumid']='';

	$CACHE['membership']=false;

	$CACHE['permissions']=false;

	$CACHE['roles']=false;

	$CACHE['ranks']=false;

	$CACHE['member']=false;

	$CACHE['globals']=false;



	return;

}



# ------------------------------------------------------------------

# sfa_set_activepanels()

#

# Builds contro list of admin panels for later identification

# ------------------------------------------------------------------

function sfa_set_activepanels()

{

	global $ACTIVEPANEL;



	$ACTIVEPANEL['forums']=0;

	$ACTIVEPANEL['options']=1;

	$ACTIVEPANEL['components']=2;

	$ACTIVEPANEL['usergroups']=3;

	$ACTIVEPANEL['permissions']=4;

	$ACTIVEPANEL['users']=5;

	$ACTIVEPANEL['profiles']=6;

	$ACTIVEPANEL['admins']=7;

	$ACTIVEPANEL['tags']=8;

	$ACTIVEPANEL['toolbox']=9;

	$ACTIVEPANEL['config']=10;

	$ACTIVEPANEL['integration']=11;



	return;

}



# ------------------------------------------------------------------

# sfg_get_system_status()

# Determine if forum can be run or if it requires install/upgrade

# ------------------------------------------------------------------

function sfg_get_system_status()

{

    global $wpdb;



    $current_version = sf_get_option('sfversion');

    $current_build = sf_get_option('sfbuild');



    # First find out if build number has changed but check first against the log

    # in case it is a glitch or has been changed in the toolbox

    if((empty($current_version) || version_compare($current_version, '1.0', '<')) || (($current_build != SFBUILD) || ($current_version != SFVERSION)))

    {

        # If table SFLOG exists then there is a chance the option records got corrupted (?) or the build has been manually rerset

        # so get the values from the log and compare

        $sql = "SHOW TABLES LIKE '".SFLOG."'";

        $log = $wpdb->query($sql);

        if(!empty($log))

        {

            # So the log table exists. We check the last log entry build number

            # aganst the option build number and if option build number is less

            # we update it to the last log entry

            $sql = "SELECT build, version FROM ".SFLOG." ORDER BY id DESC LIMIT 1";

            $log = $wpdb->get_results($sql);

            if($current_build != $log[0]->build)

            {

                # But if the force upgrade flag is set we do NOIT reset build number

                if(sf_get_option('sfforceupgrade') == false)

                {

                    sf_update_option('sfbuild', $log[0]->build);

                    sf_update_option('sfversion', $log[0]->version);

                    $current_build = $log[0]->build;

                    $current_version = $log[0]->version;

                }

            }

        }

    }



    # Has the systen been installed?

    if(empty($current_version) || version_compare($current_version, '1.0', '<')) return 'Install';



    # Base already installed - check Version and Build Number

    if(($current_build < SFBUILD) || ($current_version != SFVERSION)) return 'Upgrade';



    return 'ok';

}

?>