<?php
/*======================================================================*\
|| #################################################################### ||
|| # vBulletin 4.0.3
|| # ---------------------------------------------------------------- # ||
|| # Copyright ©2000-2010 vBulletin Solutions Inc. All Rights Reserved. ||
|| # This file may not be redistributed in whole or significant part. # ||
|| # ---------------- VBULLETIN IS NOT FREE SOFTWARE ---------------- # ||
|| # http://www.vbulletin.com | http://www.vbulletin.com/license.html # ||
|| #################################################################### ||
\*======================================================================*/

// ####################### SET PHP ENVIRONMENT ###########################
error_reporting(E_ALL & ~E_NOTICE);

// #################### DEFINE IMPORTANT CONSTANTS #######################
define('THIS_SCRIPT', 'index');
define('CSRF_PROTECTION', true);
define('CSRF_SKIP_LIST', '');
define('VB_ENTRY', 'forum.php');

// ################### PRE-CACHE TEMPLATES AND DATA ######################
// get special phrase groups
$phrasegroups = array('holiday');

// get special data templates from the datastore
$specialtemplates = array(
	'userstats',
	'birthdaycache',
	'maxloggedin',
	'iconcache',
	'eventcache',
	'mailqueue',
	'activeblocks',
);

// pre-cache templates used by all actions
$globaltemplates = array(
	'ad_forumhome_afterforums',
	'ad_board_below_whats_going_on',
	'block_blogentries',
	'block_cmsarticles',
	'block_newposts',
	'block_sgdiscussions',
	'block_tagcloud',
	'block_threads',
	'FORUMHOME',
	'forumhome_event',
	'forumhome_forumbit_level1_nopost',
	'forumhome_forumbit_level1_post',
	'forumhome_forumbit_level2_nopost',
	'forumhome_forumbit_level2_post',
	'forumhome_lastpostby',
	'forumhome_loggedinuser',
	'forumhome_moderator',
	'forumhome_subforumbit_nopost',
	'forumhome_subforumbit_post',
	'forumhome_subforumseparator_nopost',
	'forumhome_subforumseparator_post',
	'forumhome_markread_script',
	'forumhome_birthdaybit',
	'tag_cloud_link',
);

// pre-cache templates used by specific actions
$actiontemplates = array();

// ######################### REQUIRE BACK-END ############################
require_once('./global.php');
require_once(DIR . '/includes/functions_bigthree.php');
require_once(DIR . '/includes/functions_forumlist.php');
require_once(DIR . '/includes/class_block.php');

// #######################################################################
// ######################## START MAIN SCRIPT ############################
// #######################################################################

($hook = vBulletinHook::fetch_hook('forumhome_start')) ? eval($hook) : false;

// get permissions to view forumhome
if (!($permissions['forumpermissions'] & $vbulletin->bf_ugp_forumpermissions['canview']))
{
	print_no_permission();
}

$navbits = array();

if (empty($foruminfo['forumid']))
{
	// show all forums
	$forumid = -1;

	$navbits[''] = $vbphrase['forum'];
}
else
{
	// check forum permissions
	$_permsgetter_ = 'index';
	$forumperms = fetch_permissions($foruminfo['forumid']);

	if (!($forumperms & $vbulletin->bf_ugp_forumpermissions['canview']))
	{
		print_no_permission();
	}

	// check if there is a forum password and if so, ensure the user has it set
	verify_forum_password($foruminfo['forumid'], $foruminfo['password']);

	// draw nav bar
	$navbits[$vbulletin->options['forumhome'] . '.php' . $vbulletin->session->vars['sessionurl_q']] = $vbphrase['forum'];
	$parentlist = array_reverse(explode(',', substr($foruminfo['parentlist'], 0, -3)));
	foreach ($parentlist AS $forumID)
	{
		$forumTitle =& $vbulletin->forumcache["$forumID"]['title'];
		$navbits[fetch_seo_url('forum', array('forumid' => $forumID, 'title' => $forumTitle))] = $forumTitle;
	}

	// pop the last element off the end of the $nav array so that we can show it without a link
	array_pop($navbits);

	$navbits[''] = $foruminfo['title'];
}

$today = vbdate('Y-m-d', TIMENOW, false, false);

// ### TODAY'S BIRTHDAYS #################################################
if ($vbulletin->options['showbirthdays'])
{
	if (!is_array($vbulletin->birthdaycache)
		OR ($today != $vbulletin->birthdaycache['day1'] AND $today != $vbulletin->birthdaycache['day2'])
		OR !is_array($vbulletin->birthdaycache['users1'])
	)
	{
		// Need to update!
		require_once(DIR . '/includes/functions_databuild.php');
		$birthdaystore = build_birthdays();
		DEVDEBUG('Updated Birthdays');
	}
	else
	{
		$birthdaystore = $vbulletin->birthdaycache;
	}

	switch ($today)
	{
		case $birthdaystore['day1']:
			$birthdaysarray = $birthdaystore['users1'];
			break;

		case $birthdaystore['day2']:
			$birthdaysarray = $birthdaystore['users2'];
			break;

		default:
			$birthdaysarray = array();
	}
	// memory saving
	unset($birthdaystore);

	$birthdaybits = array();

	foreach ($birthdaysarray AS $birthday)
	{
		$templater = vB_Template::create('forumhome_birthdaybit');
			$templater->register('birthday', $birthday);
		$birthdaybits[] = $templater->render();
	}

	$birthdays = implode('', $birthdaybits);

	if (vB_Template_Runtime::fetchStyleVar('dirmark'))
	{
		$birthdays = str_replace('<!--rlm-->', vB_Template_Runtime::fetchStyleVar('dirmark'), $birthdays);
	}

	$show['birthdays'] = iif ($birthdays, true, false);
}
else
{
	$show['birthdays'] = false;
}

// ### TODAY'S EVENTS #################################################
if ($vbulletin->options['showevents'])
{
	require_once(DIR . '/includes/functions_calendar.php');

	$future = gmdate('n-j-Y' , TIMENOW + 86400 + 86400 * $vbulletin->options['showevents']);

	if (!is_array($vbulletin->eventcache) OR $future != $vbulletin->eventcache['date'])
	{
		// Need to update!
		$eventstore = build_events();
		DEVDEBUG('Updated Events');
	}
	else
	{
		$eventstore = $vbulletin->eventcache;
	}

	unset($eventstore['date']);
	$events = array();
	$eventcount = 0;
	$holiday_calendarid = 0;

	foreach ($eventstore AS $eventid => $eventinfo)
	{
		$offset = $eventinfo['dst'] ? $vbulletin->userinfo['timezoneoffset'] : $vbulletin->userinfo['tzoffset'];
		$eventstore["$eventid"]['dateline_from_user'] = $eventinfo['dateline_from_user'] = $eventinfo['dateline_from'] + $offset * 3600;
		$eventstore["$eventid"]['dateline_to_user'] = $eventinfo['dateline_to_user'] = $eventinfo['dateline_to'] + $offset * 3600;
		$gettime = TIMENOW - $vbulletin->options['hourdiff'];
		$iterations = 0;
		$todaydate = getdate($gettime);

		if (!$eventinfo['singleday'] AND !$eventinfo['recurring'] AND $eventinfo['dateline_from_user'] < gmmktime(0, 0, 0, $todaydate['mon'], $todaydate['mday'], $todaydate['year']))
		{
			$sub = -3;
		}
		else if (!empty($eventinfo['holidayid']))
		{
			$sub = -2;
		}
		else if ($eventinfo['singleday'])
		{
			$sub = -1;
		}
		else
		{
			$sub = $eventinfo['dateline_from_user'] - (86400 * (intval($eventinfo['dateline_from_user'] / 86400)));
		}

		if ($vbulletin->userinfo['calendarpermissions']["$eventinfo[calendarid]"] & $vbulletin->bf_ugp_calendarpermissions['canviewcalendar'] OR ($eventinfo['holidayid'] AND $vbulletin->options['showholidays']))
		{
			if ($eventinfo['holidayid'] AND $vbulletin->options['showholidays'])
			{
				if (!$holiday_calendarid)
				{
					$holiday_calendarid = -1; // stop this loop from running again in the future
					if (is_array($eventinfo['holiday_calendarids']))
					{
						foreach ($eventinfo['holiday_calendarids'] AS $potential_holiday_calendarid)
						{
							if ($vbulletin->userinfo['calendarpermissions']["$potential_holiday_calendarid"] & $vbulletin->bf_ugp_calendarpermissions['canviewcalendar'])
							{
								$holiday_calendarid = $potential_holiday_calendarid;
								break;
							}
						}
					}
				}

				if ($holiday_calendarid < 0)
				{
					continue;
				}

				$eventstore["$eventid"]['calendarid'] = $holiday_calendarid;
				$eventinfo['calendarid'] = $holiday_calendarid;
			}

			if ($eventinfo['userid'] == $vbulletin->userinfo['userid'] OR $vbulletin->userinfo['calendarpermissions']["$eventinfo[calendarid]"] & $vbulletin->bf_ugp_calendarpermissions['canviewothersevent'] OR ($eventinfo['holidayid'] AND $vbulletin->options['showholidays']))
			{
				if (!$eventinfo['recurring'] AND !$vbulletin->options['showeventtype'] AND !$eventinfo['singleday'] AND cache_event_info($eventinfo, $todaydate['mon'], $todaydate['mday'], $todaydate['year']))
				{
					$events["$eventid"][] = $gettime . "_$sub";
				}
				else
				{
					while ($iterations < $vbulletin->options['showevents'])
					{
						$addcache = false;

						$todaydate = getdate($gettime);
						if (isset($eventinfo['holidayid']) AND $eventinfo['holidayid'] AND $eventinfo['recurring'] == 6)
						{
							if ($eventinfo['recuroption'] == "$todaydate[mon]|$todaydate[mday]")
							{
								$addcache = true;
							}
						}
						else if (cache_event_info($eventinfo, $todaydate['mon'], $todaydate['mday'], $todaydate['year']))
						{
							$addcache = true;
						}

						if ($addcache)
						{
							if (!$vbulletin->options['showeventtype'])
							{
								$events["$eventid"][] = $gettime . "_$sub";
							}
							else
							{
								$events["$gettime"][] = $eventid;
							}
							$eventcount++;
						}

						$iterations++;
						$gettime += 86400;
					}
				}
			}
		}
	}

	if (!empty($events))
	{
		if ($vbulletin->options['showeventtype'])
		{
			ksort($events, SORT_NUMERIC);
		}
		else
		{
			function groupbyevent($a, $b)
			{
				if ($a[0] == $b[0])
				{
					return 0;
				}
				else
				{
					$values1 = explode('_', $a[0]);
					$values2 = explode('_', $b[0]);
					if ($values1[0] != $values2[0])
					{
						return ($values1[0] < $values2[0]) ? -1 : 1;
					}
					else
					{
						// Same day events. Check the event start time to order them properly (compare number of seconds from 00:00)
						return ($values1[1] < $values2[1]) ? -1 : 1;
					}
				}
			}
			uasort($events, 'groupbyevent');
			// this crazy code is to remove $sub added above that ensures a event maintains its position after the sort
			// if associative values are the same
			foreach($events AS $eventid => $times)
			{
				foreach ($times AS $key => $time)
				{
					$events["$eventid"]["$key"] = intval($time);
				}
			}
		}

		$upcomingevents = '';
		foreach($events AS $index => $value)
		{
			$pastevent = 0;
			$pastcount = 0;

			$comma = $eventdates = $daysevents = '';
			if (!$vbulletin->options['showeventtype'])
			{	// Group by Event // $index = $eventid
				$eventinfo = $eventstore["$index"];
				if (empty($eventinfo['recurring']) AND empty($eventinfo['singleday']))
				{	// ranged event -- show it from its real start and real end date (vbgmdate)
					$fromdate = vbdate($vbulletin->options['dateformat'], $eventinfo['dateline_from_user'], false, true, false, true);
					$todate = vbdate($vbulletin->options['dateformat'], $eventinfo['dateline_to_user'], false, true, false, true);
					if ($fromdate != $todate)
					{
						$eventdates = construct_phrase($vbphrase['event_x_to_y'], $fromdate, $todate);
					}
					else
					{
						$eventdates = vbdate($vbulletin->options['dateformat'], $eventinfo['dateline_from_user'], false, true, false, true);
					}
					$day = vbdate('Y-n-j', $eventinfo['dateline_from_user'], false, false);
				}
				else
				{
					unset($day);
					foreach($value AS $key => $dateline)
					{
						if (($dateline - 86400) == $pastevent AND !$eventinfo['holidayid'])
						{
							$pastevent = $dateline;
							$pastcount++;
							continue;
						}
						else
						{
							if ($pastcount)
							{
								$eventdates = construct_phrase($vbphrase['event_x_to_y'], $eventdates, vbdate($vbulletin->options['dateformat'], $pastevent, false, true, false));
							}
							$pastcount = 0;
							$pastevent = $dateline;
						}
						if (!$day)
						{
							$day = vbdate('Y-n-j', $dateline, false, false, false);
						}
						$eventdates .= $comma . vbdate($vbulletin->options['dateformat'], $dateline, false, true, false);
						$comma = ', ';
					}
					if ($pastcount)
					{
						$eventdates = construct_phrase($vbphrase['event_x_to_y'], $eventdates, vbdate($vbulletin->options['dateformat'], $pastevent, false, true, false));
					}
				}

				if ($eventinfo['holidayid'])
				{
					$callink = '<a href="calendar.php?' . $vbulletin->session->vars['sessionurl'] . "do=getinfo&amp;day=$day&amp;c=$eventinfo[calendarid]\">" . $vbphrase['holiday' . $eventinfo['holidayid'] . '_title'] . "</a>";
				}
				else
				{
					$callink = '<a href="calendar.php?' . $vbulletin->session->vars['sessionurl'] . "do=getinfo&amp;day=$day&amp;e=$eventinfo[eventid]&amp;c=$eventinfo[calendarid]\">$eventinfo[title]</a>";
				}
			}
			else
			{	// Group by Date
				$eventdate = vbdate($vbulletin->options['dateformat'], $index, false, true, false);

				$day = vbdate('Y-n-j', $index, false, false, false);
				foreach($value AS $key => $eventid)
				{
					$eventinfo = $eventstore["$eventid"];
					if ($eventinfo['holidayid'])
					{
						$daysevents .= $comma . '<a href="calendar.php?' . $vbulletin->session->vars['sessionurl'] . "do=getinfo&amp;day=$day&amp;c=$eventinfo[calendarid]\">" . $vbphrase['holiday' . $eventinfo['holidayid'] . '_title'] . "</a>";
					}
					else
					{
						$daysevents .= $comma . '<a href="calendar.php?' . $vbulletin->session->vars['sessionurl'] . "do=getinfo&amp;day=$day&amp;e=$eventinfo[eventid]&amp;c=$eventinfo[calendarid]\">$eventinfo[title]</a>";
					}
					$comma = ', ';
				}
			}

			($hook = vBulletinHook::fetch_hook('forumhome_event')) ? eval($hook) : false;
			$templater = vB_Template::create('forumhome_event');
				$templater->register('callink', $callink);
				$templater->register('daysevents', $daysevents);
				$templater->register('eventdate', $eventdate);
				$templater->register('eventdates', $eventdates);
			$upcomingevents .= $templater->render();
		}
		// memory saving
		unset($events, $eventstore);
		$show['upcomingevents'] = iif ($upcomingevents, true, false);
	}
	$show['todaysevents'] = iif ($vbulletin->options['showevents'] == 1, true, false);
}
else
{
	$show['upcomingevents'] = false;
}

// ### LOGGED IN USERS #################################################
$activeusers = '';
if (($vbulletin->options['displayloggedin'] == 1 OR $vbulletin->options['displayloggedin'] == 2 OR ($vbulletin->options['displayloggedin'] > 2 AND $vbulletin->userinfo['userid'])) AND !$show['search_engine'])
{
	$datecut = TIMENOW - $vbulletin->options['cookietimeout'];
	$numbervisible = 0;
	$numberregistered = 0;
	$numberguest = 0;

	$hook_query_fields = $hook_query_joins = $hook_query_where = '';
	($hook = vBulletinHook::fetch_hook('forumhome_loggedinuser_query')) ? eval($hook) : false;

	$forumusers = $db->query_read_slave("
		SELECT
			user.username, (user.options & " . $vbulletin->bf_misc_useroptions['invisible'] . ") AS invisible, user.usergroupid, user.lastvisit,
			session.userid, session.inforum, session.lastactivity, session.badlocation,
			IF(displaygroupid=0, user.usergroupid, displaygroupid) AS displaygroupid, infractiongroupid
			$hook_query_fields
		FROM " . TABLE_PREFIX . "session AS session
		LEFT JOIN " . TABLE_PREFIX . "user AS user ON(user.userid = session.userid)
		$hook_query_joins
		WHERE session.lastactivity > $datecut
			AND (user.usergroupid NOT IN (3,4) OR user.usergroupid IS NULL)
			$hook_query_where
		" . iif($vbulletin->options['displayloggedin'] == 1 OR $vbulletin->options['displayloggedin'] == 3, "ORDER BY username ASC") . "
	");



	if ($vbulletin->userinfo['userid'])
	{
		// fakes the user being online for an initial page view of index.php
		$vbulletin->userinfo['joingroupid'] = iif($vbulletin->userinfo['displaygroupid'], $vbulletin->userinfo['displaygroupid'], $vbulletin->userinfo['usergroupid']);
		$userinfos = array
		(
			$vbulletin->userinfo['userid'] => array
			(
				'userid'            =>& $vbulletin->userinfo['userid'],
				'username'          =>& $vbulletin->userinfo['username'],
				'invisible'         =>& $vbulletin->userinfo['invisible'],
				'inforum'           => 0,
				'lastactivity'      => TIMENOW,
				'lastvisit'         =>& $vbulletin->userinfo['lastvisit'],
				'usergroupid'       =>& $vbulletin->userinfo['usergroupid'],
				'displaygroupid'    =>& $vbulletin->userinfo['displaygroupid'],
				'infractiongroupid' =>& $vbulletin->userinfo['infractiongroupid'],
			)
		);
	}
	else
	{
		$userinfos = array();
	}
	$inforum = array();

	while ($loggedin = $db->fetch_array($forumusers))
	{
		$userid = $loggedin['userid'];
		if (!$userid)
		{	// Guest
			$numberguest++;
			if (!isset($inforum["$loggedin[inforum]"]))
			{
				$inforum["$loggedin[inforum]"] = 0;
			}
			if (!$loggedin['badlocation'])
			{
				$inforum["$loggedin[inforum]"]++;
			}
		}
		else if (empty($userinfos["$userid"]) OR ($userinfos["$userid"]['lastactivity'] < $loggedin['lastactivity']))
		{
			$userinfos["$userid"] = $loggedin;
		}
	}

	if (!$vbulletin->userinfo['userid'] AND $numberguest == 0)
	{
		$numberguest++;
	}

	foreach ($userinfos AS $userid => $loggedin)
	{
		$numberregistered++;
		if ($userid != $vbulletin->userinfo['userid'] AND !$loggedin['badlocation'])
		{
			if (!isset($inforum["$loggedin[inforum]"]))
			{
				$inforum["$loggedin[inforum]"] = 0;
			}
			$inforum["$loggedin[inforum]"]++;
		}
		fetch_musername($loggedin);

		($hook = vBulletinHook::fetch_hook('forumhome_loggedinuser')) ? eval($hook) : false;

		if (fetch_online_status($loggedin))
		{
			$numbervisible++;
			$show['comma_leader'] = ($activeusers != '');
			$templater = vB_Template::create('forumhome_loggedinuser');
				$templater->register('loggedin', $loggedin);
			$activeusers .= $templater->render();
		}
	}

	// memory saving
	unset($userinfos, $loggedin);

	$db->free_result($forumusers);

	$totalonline = $numberregistered + $numberguest;
	$numberinvisible = $numberregistered - $numbervisible;

	// ### MAX LOGGEDIN USERS ################################
	if (intval($vbulletin->maxloggedin['maxonline']) <= $totalonline)
	{
		$vbulletin->maxloggedin['maxonline'] = $totalonline;
		$vbulletin->maxloggedin['maxonlinedate'] = TIMENOW;
		build_datastore('maxloggedin', serialize($vbulletin->maxloggedin), 1);
	}

	$recordusers = vb_number_format($vbulletin->maxloggedin['maxonline']);
	$recorddate = vbdate($vbulletin->options['dateformat'], $vbulletin->maxloggedin['maxonlinedate'], true);
	$recordtime = vbdate($vbulletin->options['timeformat'], $vbulletin->maxloggedin['maxonlinedate']);

	$show['loggedinusers'] = true;
}
else
{
	$show['loggedinusers'] = false;
}

// ### GET FORUMS & MODERATOR iCACHES ########################
cache_ordered_forums(1, 1);
if ($vbulletin->options['showmoderatorcolumn'])
{
	cache_moderators();
}
else if ($vbulletin->userinfo['userid'])
{
	cache_moderators($vbulletin->userinfo['userid']);
}

// define max depth for forums display based on $vbulletin->options[forumhomedepth]
define('MAXFORUMDEPTH', $vbulletin->options['forumhomedepth']);

$forumbits = construct_forum_bit($forumid);
$forumhome_markread_script = vB_Template::create('forumhome_markread_script')->render();

// ### BOARD STATISTICS #################################################

// get total threads & posts from the forumcache
$totalthreads = 0;
$totalposts = 0;
if (is_array($vbulletin->forumcache))
{
	foreach ($vbulletin->forumcache AS $forum)
	{
		$totalthreads += $forum['threadcount'];
		$totalposts += $forum['replycount'];
	}
}
$totalthreads = vb_number_format($totalthreads);
$totalposts = vb_number_format($totalposts);

// get total members and newest member from template
$numbermembers = vb_number_format($vbulletin->userstats['numbermembers']);
$newuserinfo = array(
	'userid'   => $vbulletin->userstats['newuserid'],
	'username' => $vbulletin->userstats['newusername']
);
$activemembers = vb_number_format($vbulletin->userstats['activemembers']);
$show['activemembers'] = ($vbulletin->options['activememberdays'] > 0 AND ($vbulletin->options['activememberoptions'] & 2)) ? true : false;

$ad_location['ad_forumhome_afterforums'] = vB_Template::create('ad_forumhome_afterforums')->render();
$ad_location['board_below_whats_going_on'] = vB_Template::create('ad_board_below_whats_going_on')->render();

// ### SIDEBAR #################################################
$show['sidebar'] = false;
// disable blocks for ie6
if ($vbulletin->options['enablesidebar'] AND !(is_browser('ie') AND !is_browser('ie', 7)))
{
	$blockmanager = vB_BlockManager::create($vbulletin);
	$sidebar = $blockmanager->getSidebarHTML();
	if ($sidebar)
	{
		$show['sidebar'] = true;
	}

	$show['sidebarposition'] = vB_Template_Runtime::fetchStyleVar($vbulletin->options['sidebarposition'] == 0 ? 'left' : 'right');
}

// ### ALL DONE! SPIT OUT THE HTML AND LET'S GET OUTTA HERE... ###
($hook = vBulletinHook::fetch_hook('forumhome_complete')) ? eval($hook) : false;

$navbar = render_navbar_template(construct_navbits($navbits));
$templater = vB_Template::create('FORUMHOME');
	$templater->register_page_templates();
	$templater->register('activemembers', $activemembers);
	$templater->register('activeusers', $activeusers);
	$templater->register('ad_location', $ad_location);
	$templater->register('birthdays', $birthdays);
	$templater->register('forumbits', $forumbits);
	$templater->register('forumhome_markread_script', $forumhome_markread_script);
	$templater->register('navbar', $navbar);
	$templater->register('newuserinfo', $newuserinfo);
	$templater->register('numberguest', $numberguest);
	$templater->register('numbermembers', $numbermembers);
	$templater->register('numberregistered', $numberregistered);
	$templater->register('recorddate', $recorddate);
	$templater->register('recordtime', $recordtime);
	$templater->register('recordusers', $recordusers);
	$templater->register('template_hook', $template_hook);
	$templater->register('today', $today);
	$templater->register('totalonline', $totalonline);
	$templater->register('totalposts', $totalposts);
	$templater->register('totalthreads', $totalthreads);
	$templater->register('upcomingevents', $upcomingevents);
	$templater->register('sidebar', $sidebar);
print_output($templater->render());

/*======================================================================*\
|| ####################################################################
|| # CVS: $RCSfile$ - $Revision: 29446 $
|| ####################################################################
\*======================================================================*/