/*======================================================================*\
|| #################################################################### ||
|| # vBulletin 3.8.1 - Licence Number VBF0A5AAA6
|| # ---------------------------------------------------------------- # ||
|| # Copyright ©2000-2009 Jelsoft Enterprises Ltd. 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', '');

// ################### 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',
);

// pre-cache templates used by all actions
$globaltemplates = array(
	'ad_forumhome_afterforums',
	'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'
);

// 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');

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


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

if (empty($foruminfo['forumid']))
{
	// show all forums
	$forumid = -1;
}
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 = array();
	$parentlist = array_reverse(explode(',', substr($foruminfo['parentlist'], 0, -3)));
	foreach ($parentlist AS $forumID)
	{
		$forumTitle =& $vbulletin->forumcache["$forumID"]['title'];
		$navbits['forumdisplay.php?' . $vbulletin->session->vars['sessionurl'] . "f=$forumID"] = $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'];
	$navbits = construct_navbits($navbits);
}

$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)
	{
	}

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

	if ($stylevar['dirmark'])
	{
		$birthdays = str_replace('<!--rlm-->', $stylevar['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']))
		{
			$sub = -3;
		}
		else if ($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 ($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 = ', ';
				}
			}

		}
		// 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 = '';

	$forumusers = $db->query_read_slave("
		SELECT
			user.username, (user.options & " . $vbulletin->bf_misc_useroptions['invisible'] . ") AS invisible, user.usergroupid,
			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
			$hook_query_where
		" . iif($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,
				'usergroupid'       =>& $vbulletin->userinfo['usergroupid'],
				'displaygrou