<?php
/** 
*
* @package phpBB3
* @version $Id$
* @copyright (c) 2005 phpBB Group 
* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
*
*/

/**
*/
define('IN_PHPBB', true);
$phpbb_root_path = './';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
include($phpbb_root_path . 'common.'.$phpEx);
include($phpbb_root_path . 'includes/functions_display.' . $phpEx);

// Start session management
$user->session_begin();
$auth->acl($user->data);

// Initial var setup
$forum_id	= request_var('f', 0);
$topic_id	= request_var('t', 0);
$post_id	= request_var('p', 0);
$voted_id	= request_var('vote_id', 0);;

$start		= request_var('start', 0);
$view		= request_var('view', '');
$rate		= request_var('rate', 0);

$sort_days	= request_var('st', ((!empty($user->data['user_post_show_days'])) ? $user->data['user_post_show_days'] : 0));
$sort_key	= request_var('sk', ((!empty($user->data['user_post_sortby_type'])) ? $user->data['user_post_sortby_type'] : 't'));
$sort_dir	= request_var('sd', ((!empty($user->data['user_post_sortby_dir'])) ? $user->data['user_post_sortby_dir'] : 'a'));

$update		= request_var('update', false);

$hilit_words		= request_var('hilit', '');

// Do we have a topic or post id?
if (!$topic_id && !$post_id)
{
	trigger_error('NO_TOPIC');
}

// Find topic id if user requested a newer or older topic
if ($view && !$post_id)
{
	if (!$forum_id)
	{
		$sql = 'SELECT forum_id FROM ' . TOPICS_TABLE . "
			WHERE topic_id = $topic_id";
		$db->sql_query_limit($sql, 1);
		$result = $db->sql_query($sql);
		if ($row = $db->sql_fetchrow($result))
		{
			$forum_id = $row['forum_id'];
		}
		else
		{
			trigger_error('NO_TOPIC');
		}
		$db->sql_freeresult($result);
	}

	if ($view == 'unread')
	{
		// Get topic tracking info
		$topic_tracking_info = get_complete_topic_tracking($forum_id, $topic_id);

		$topic_last_read = (isset($topic_tracking_info[$topic_id])) ? $topic_tracking_info[$topic_id] : 0;

		$sql = 'SELECT p.post_id, p.topic_id, p.forum_id
			FROM ' . POSTS_TABLE . ' p, ' . TOPICS_TABLE . " t
			WHERE t.topic_id = $topic_id
				AND p.topic_id = t.topic_id
				" . (($auth->acl_get('m_approve', $forum_id)) ? '' : 'AND p.post_approved = 1') . "
				AND (p.post_time > $topic_last_read
					OR p.post_id = t.topic_last_post_id)
			ORDER BY p.post_time ASC";
		$result = $db->sql_query_limit($sql, 1);

		if (!($row = $db->sql_fetchrow($result)))
		{
			// Setup user environment so we can process lang string
			$user->setup('viewtopic');

			meta_refresh(3, "viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id");
			$message = $user->lang['NO_UNREAD_POSTS'] . '<br /><br />' . sprintf($user->lang['RETURN_TOPIC'], "<a href=\"viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id\">", '</a>');
			trigger_error($message);
		}
		$db->sql_freeresult($result);

		$post_id = $row['post_id'];
		$topic_id = $row['topic_id'];
	}
	else if ($view == 'next' || $view == 'previous')
	{
		$sql_condition = ($view == 'next') ? '>' : '<';
		$sql_ordering = ($view == 'next') ? 'ASC' : 'DESC';

		$sql = 'SELECT t.topic_id, t.forum_id
			FROM ' . TOPICS_TABLE . ' t, ' . TOPICS_TABLE . " t2
			WHERE t2.topic_id = $topic_id
				AND t.forum_id = t2.forum_id
				" . (($auth->acl_get('m_approve', $forum_id)) ? '' : 'AND t.topic_approved = 1') . "
				AND t.topic_last_post_time $sql_condition t2.topic_last_post_time
			ORDER BY t.topic_last_post_time $sql_ordering";
		$result = $db->sql_query_limit($sql, 1);

		if (!($row = $db->sql_fetchrow($result)))
		{
			$message = ($view == 'next') ? 'NO_NEWER_TOPICS' : 'NO_OLDER_TOPICS';
			trigger_error($message);
		}
		else
		{
			$topic_id = $row['topic_id'];
	
			// Check for global announcement correctness?
			if (!$row['forum_id'] && !$forum_id)
			{
				trigger_error('NO_TOPIC');
			}
			else if ($row['forum_id'])
			{
				$forum_id = $row['forum_id'];
			}
		}
	}

	// Check for global announcement correctness?
	if ((!$row || !$row['forum_id']) && !$forum_id)
	{
		trigger_error('NO_TOPIC');
	}
	else if ($row['forum_id'])
	{
		$forum_id = $row['forum_id'];
	}
}


// This rather complex gaggle of code handles querying for topics but
// also allows for direct linking to a post (and the calculation of which
// page the post is on and the correct display of viewtopic)
$join_sql_table = '';
$select_sql = 't.topic_id, t.forum_id, t.topic_title, t.topic_attachment, t.topic_status, t.topic_approved, t.topic_replies_real, t.topic_replies, t.topic_first_post_id, t.topic_last_post_id, t.topic_last_poster_id, t.topic_last_post_time, t.topic_poster, t.topic_time, t.topic_time_limit, t.topic_type, t.topic_bumped, t.topic_bumper, t.poll_max_options, t.poll_start, t.poll_length, t.poll_title, t.poll_vote_change, f.forum_name, f.forum_desc, f.forum_parents, f.parent_id, f.left_id, f.right_id, f.forum_status, f.forum_type, f.forum_id, f.forum_style, f.forum_password, f.forum_rules, f.forum_rules_link, f.forum_rules_flags, f.forum_rules_bbcode_uid, f.forum_rules_bbcode_bitfield';

if (!$post_id)
{
	$join_sql = "t.topic_id = $topic_id";
}
else
{
	if ($auth->acl_get('m_approve', $forum_id))
	{
		$join_sql = (!$post_id) ? "t.topic_id = $topic_id" : "p.post_id = $post_id AND t.topic_id = p.topic_id AND p2.topic_id = p.topic_id AND p2.post_id <= $post_id";
	}
	else
	{
		$join_sql = (!$post_id) ? "t.topic_id = $topic_id" : "p.post_id = $post_id AND p.post_approved = 1 AND t.topic_id = p.topic_id AND p2.topic_id = p.topic_id AND p2.post_approved = 1 AND p2.post_id <= $post_id";
	}
}
$extra_fields = (!$post_id)  ? '' : ', COUNT(p2.post_id) AS prev_posts';
$order_sql = (!$post_id) ? '' : 'GROUP BY p.post_id, ' . $select_sql . ' ORDER BY p.post_id ASC';

if ($user->data['is_registered'])
{
	$extra_fields .= ', tw.notify_status';
	$join_sql_table .= ' LEFT JOIN ' . TOPICS_WATCH_TABLE . ' tw ON (tw.user_id = ' . $user->data['user_id'] . '
		AND t.topic_id = tw.topic_id)';

	if ($config['allow_bookmarks'])
	{
		$extra_fields .= ', bm.order_id as bookmarked';
		$join_sql_table .= ' LEFT JOIN ' . BOOKMARKS_TABLE . ' bm ON (bm.user_id = ' . $user->data['user_id'] . '
			AND t.topic_id = bm.topic_id)';
	}

	if ($config['load_db_lastread'])
	{
		$extra_fields .= ', tt.mark_time, ft.mark_time as forum_mark_time';
		$join_sql_table .= ' LEFT JOIN ' . TOPICS_TRACK_TABLE . ' tt ON (tt.user_id = ' . $user->data['user_id'] . '
			AND t.topic_id = tt.topic_id)';

		$join_sql_table .= ' LEFT JOIN ' . FORUMS_TRACK_TABLE . ' ft ON (ft.user_id = ' . $user->data['user_id'] . '
			AND f.forum_id = ft.forum_id)';
	}
}

// Join to forum table on topic forum_id unless topic forum_id is zero
// whereupon we join on the forum_id passed as a parameter ... this
// is done so navigation, forum name, etc. remain consistent with where
// user clicked to view a global topic
$sql = "SELECT $select_sql $extra_fields
	FROM (" . FORUMS_TABLE . ' f, ' . TOPICS_TABLE . ' t' . ((!$post_id) ? '' : ', ' . POSTS_TABLE . ' p, ' . POSTS_TABLE . ' p2') . ') ' . 
	$join_sql_table . "
	WHERE $join_sql
		AND (f.forum_id = t.forum_id
			" . ((!$forum_id) ? '' : 'OR (t.topic_type = ' . POST_GLOBAL . " AND f.forum_id = $forum_id)") . "
			)
	$order_sql";
$result = $db->sql_query($sql);

if (!($topic_data = $db->sql_fetchrow($result)))
{
	// If post_id was submitted, we try at least to display the topic as a last resort...
	if ($post_id && $forum_id && $topic_id)
	{
		redirect("viewtopic.$phpEx$SID&f=$forum_id&t=$topic_id");
	}
	trigger_error('NO_TOPIC');
}

$forum_id = (int) $topic_data['forum_id'];
$topic_id = (int) $topic_data['topic_id'];

//
$topic_replies = ($auth->acl_get('m_approve', $forum_id)) ? $topic_data['topic_replies_real'] : $topic_data['topic_replies'];

// Check sticky/announcement time limit
if (($topic_data['topic_type'] == POST_STICKY || $topic_data['topic_type'] == POST_ANNOUNCE) && $topic_data['topic_time_limit'] && ($topic_data['topic_time'] + $topic_data['topic_time_limit']) < time())
{
	$sql = 'UPDATE ' . TOPICS_TABLE . '
		SET topic_type = ' . POST_NORMAL . ', topic_time_limit = 0
		WHERE topic_id = ' . $topic_id;
	$db->sql_query($sql);

	$topic_data['topic_type'] = POST_NORMAL;
	$topic_data['topic_time_limit'] = 0;
}

// Setup look and feel
$user->setup('viewtopic', $topic_data['forum_style']);

if (!$topic_data['topic_approved'] && !$auth->acl_get('m_approve', $forum_id))
{
	trigger_error('NO_TOPIC');
}

// Start auth check
if (!$auth->acl_get('f_read', $forum_id))
{
	if ($user->data['user_id'] != ANONYMOUS)
	{
		trigger_error($user->lang['SORRY_AUTH_READ']);
	}

	login_box('', $user->lang['LOGIN_VIEWFORUM']);
}

// Forum is passworded ... check whether access has been granted to this
// user this session, if not show login box
if ($topic_data['forum_password'])
{
	login_forum_box($topic_data);
}

// Redirect to login or to the correct post upon emailed notification links
if (isset($_GET['e']))
{
	$jump_to = request_var('e', 0);

	$redirect_url = "{$phpbb_root_path}viewtopic.$phpEx$SID&f=$forum_id&t=$topic_id";

	if ($user->data['user_id'] == ANONYMOUS)
	{
		login_box($redirect_url . "&p=$post_id&e=$jump_to", $user->lang['LOGIN_NOTIFY_TOPIC']);
	}

	if ($jump_to > 0)
	{
		// We direct the already logged in user to the correct post...
		redirect($redirect_url . ((!$post_id) ? "&p=$jump_to" : "&p=$post_id") . "#$jump_to");
	}
}

// What is start equal to?
if ($post_id)
{
	$start = floor(($topic_data['prev_posts'] - 1) / $config['posts_per_page']) * $config['posts_per_page'];
}

// Get topic tracking info
if (!isset($topic_tracking_info))
{
	// Get topic tracking info
	if ($config['load_db_lastread'] && $user->data['is_registered'])
	{
		$tmp_topic_data = array($topic_id => $topic_data);
		$topic_tracking_info = get_topic_tracking($forum_id, $topic_id, $tmp_topic_data, array($forum_id => $topic_data['forum_mark_time']));
		unset($tmp_topic_data);
	}
	else
	{
		$topic_tracking_info = get_complete_topic_tracking($forum_id, $topic_id);
	}
}

// Post ordering options
$limit_days = array(0 => $user->lang['ALL_POSTS'], 1 => $user->lang['1_DAY'], 7 => $user->lang['7_DAYS'], 14 => $user->lang['2_WEEKS'], 30 => $user->lang['1_MONTH'], 90 => $user->lang['3_MONTHS'], 180 => $user->lang['6_MONTHS'], 364 => $user->lang['1_YEAR']);

$sort_by_text = array('a' => $user->lang['AUTHOR'], 't' => $user->lang['POST_TIME'], 's' => $user->lang['SUBJECT']);
$sort_by_sql = array('a' => 'u.username', 't' => 'p.post_id', 's' => 'p.post_subject');

$s_limit_days = $s_sort_key = $s_sort_dir = $u_sort_param = '';
gen_sort_selects($limit_days, $sort_by_text, $sort_days, $sort_key, $sort_dir, $s_limit_days, $s_sort_key, $s_sort_dir, $u_sort_param);

// Obtain correct post count and ordering SQL if user has
// requested anything different
if ($sort_days)
{
	$min_post_time = time() - ($sort_days * 86400);

	$sql = 'SELECT COUNT(post_id) AS num_posts
		FROM ' . POSTS_TABLE . "
		WHERE topic_id = $topic_id
			AND post_time >= $min_post_time
		" . (($auth->acl_get('m_approve', $forum_id)) ? '' : 'AND post_approved = 1');
	$result = $db->sql_query($sql);

	if (isset($_POST['sort']))
	{
		$start = 0;
	}
	$total_posts = ($row = $db->sql_fetchrow($result)) ? $row['num_posts'] : 0;
	$limit_posts_time = "AND p.post_time >= $min_post_time ";
}
else
{
	$total_posts = $topic_replies + 1;
	$limit_posts_time = '';
}

// Was a highlight request part of the URI?
$highlight_match = $highlight = '';
if ($hilit_words)
{
	foreach (explode(' ', trim($hilit_words)) as $word)
	{
		if (trim($word))
		{
			$highlight_match .= (($highlight_match != '') ? '|' : '') . str_replace('\*', '\w*?', preg_quote(urlencode($word), '#'));
		}
	}

	$highlight = urlencode($hilit_words);
}

// General Viewtopic URL for return links
$viewtopic_url = "{$phpbb_root_path}viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id&amp;start=$start&amp;$u_sort_param" . (($highlight_match) ? "&amp;hilit=$highlight" : '');

// Are we watching this topic?
$s_watching_topic = $s_watching_topic_img = array();
$s_watching_topic['link'] = $s_watching_topic['title'] = '';
if ($config['email_enable'] && $config['allow_topic_notify'] && $user->data['is_registered'])
{
	watch_topic_forum('topic', $s_watching_topic, $s_watching_topic_img, $user->data['user_id'], $topic_id, $topic_data['notify_status'], $start);
}

// Bookmarks
if ($config['allow_bookmarks'] && $user->data['is_registered'] && request_var('bookmark', 0))
{
	if (!$topic_data['bookmarked'])
	{
		$sql = 'INSERT INTO ' . BOOKMARKS_TABLE . ' ' . $db->sql_build_array('INSERT', array(
			'user_id'	=> $user->data['user_id'],
			'topic_id'	=> $topic_id,
			'order_id'	=> 0)
		);
		$db->sql_query($sql);

		$where_sql = '';
		$sign = '+';
	}
	else
	{
		$sql = 'DELETE FROM ' . BOOKMARKS_TABLE . "
			WHERE user_id = {$user->data['user_id']}
				AND topic_id = $topic_id";
		$db->sql_query($sql);

		// Works because of current order_id selected as bookmark value (please do not change because of simplicity)
		$where_sql = " AND order_id > {$topic_data['bookmarked']}";
		$sign = '-';
	}

	// Re-Sort Bookmarks
	$sql = 'UPDATE ' . BOOKMARKS_TABLE . "
		SET order_id = order_id $sign 1
			WHERE user_id = {$user->data['user_id']}
			$where_sql";
	$db->sql_query($sql);

	meta_refresh(3, $viewtopic_url);

	$message = (($topic_data['bookmarked']) ? $user->lang['BOOKMARK_REMOVED'] : $user->lang['BOOKMARK_ADDED']) . '<br /><br />' . sprintf($user->lang['RETURN_TOPIC'], '<a href="' . $viewtopic_url . '">', '</a>');
	trigger_error($message);
}

// Grab ranks
$ranks = array();
$cache->obtain_ranks($ranks);

// Grab icons
$icons = array();
$cache->obtain_icons($icons);

// Grab extensions
$extensions = array();
if ($topic_data['topic_attachment'])
{
	$cache->obtain_attach_extensions($extensions);
}

// Forum rules listing
$s_forum_rules = '';
gen_forum_auth_level('topic', $forum_id);

// Quick mod tools
$topic_mod = '';
$topic_mod .= ($auth->acl_get('m_lock', $forum_id) || ($auth->acl_get('f_user_lock', $forum_id) && $user->data['is_registered'] && $user->data['user_id'] == $topic_data['topic_poster'])) ? (($topic_data['topic_status'] == ITEM_UNLOCKED) ? '<option value="lock">' . $user->lang['LOCK_TOPIC'] . '</option>' : '<option value="unlock">' . $user->lang['UNLOCK_TOPIC'] . '</option>') : '';
$topic_mod .= ($auth->acl_get('m_delete', $forum_id)) ? '<option value="delete_topic">' . $user->lang['DELETE_TOPIC'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('m_move', $forum_id)) ? '<option value="move">' . $user->lang['MOVE_TOPIC'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('m_split', $forum_id)) ? '<option value="split">' . $user->lang['SPLIT_TOPIC'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('m_merge', $forum_id)) ? '<option value="merge">' . $user->lang['MERGE_TOPIC'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('m_', $forum_id)) ? '<option value="fork">' . $user->lang['FORK_TOPIC'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('m_', $forum_id) && $topic_data['topic_type'] != POST_NORMAL) ? '<option value="make_normal">' . $user->lang['MAKE_NORMAL'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('f_sticky', $forum_id) && $topic_data['topic_type'] != POST_STICKY) ? '<option value="make_sticky">' . $user->lang['MAKE_STICKY'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('f_announce', $forum_id) && $topic_data['topic_type'] != POST_ANNOUNCE) ? '<option value="make_announce">' . $user->lang['MAKE_ANNOUNCE'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('f_announce', $forum_id) && $topic_data['topic_type'] != POST_GLOBAL) ? '<option value="make_global">' . $user->lang['MAKE_GLOBAL'] . '</option>' : '';
$topic_mod .= ($auth->acl_get('m_', $forum_id)) ? '<option value="viewlogs">' . $user->lang['VIEW_TOPIC_LOGS'] . '</option>' : '';

// If we've got a hightlight set pass it on to pagination.
$pagination = generate_pagination("{$phpbb_root_path}viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id&amp;$u_sort_param" . (($highlight_match) ? "&amp;hilit=$highlight" : ''), $total_posts, $config['posts_per_page'], $start);

// Navigation links
generate_forum_nav($topic_data);

// Forum Rules
generate_forum_rules($topic_data);

// Moderators
$forum_moderators = array();
get_moderators($forum_moderators, $forum_id);

// This is only used for print view so ...
$server_path = (!$view) ? $phpbb_root_path : generate_board_url() . '/';

// Replace naughty words in title
$topic_data['topic_title'] = censor_text($topic_data['topic_title']);

// Send vars to template
$template->assign_vars(array(
	'FORUM_ID' 		=> $forum_id,
	'FORUM_NAME' 	=> $topic_data['forum_name'],
	'FORUM_DESC'	=> $topic_data['forum_desc'],
	'TOPIC_ID' 		=> $topic_id,
	'TOPIC_TITLE' 	=> $topic_data['topic_title'],
	'PAGINATION' 	=> $pagination,
	'PAGE_NUMBER' 	=> on_page($total_posts, $config['posts_per_page'], $start),
	'TOTAL_POSTS'	=> ($total_posts == 1) ? $user->lang['VIEW_TOPIC_POST'] : sprintf($user->lang['VIEW_TOPIC_POSTS'], $total_posts),
	'U_MCP' 		=> ($auth->acl_get('m_', $forum_id)) ? "{$phpbb_root_path}mcp.$phpEx?sid=" . $user->session_id . "&amp;i=main&amp;mode=topic_view&amp;f=$forum_id&amp;t=$topic_id&amp;start=$start&amp;$u_sort_param" : '',
	'MODERATORS'	=> (isset($forum_moderators[$forum_id]) && sizeof($forum_moderators[$forum_id])) ? implode(', ', $forum_moderators[$forum_id]) : '',

	'POST_IMG' 			=> ($topic_data['forum_status'] == ITEM_LOCKED) ? $user->img('btn_locked', 'FORUM_LOCKED') : $user->img('btn_post', 'POST_NEW_TOPIC'),
	'QUOTE_IMG' 		=> $user->img('btn_quote', 'REPLY_WITH_QUOTE'),
	'REPLY_IMG'			=> ($topic_data['forum_status'] == ITEM_LOCKED || $topic_data['topic_status'] == ITEM_LOCKED) ? $user->img('btn_locked', 'TOPIC_LOCKED') : $user->img('btn_reply', 'REPLY_TO_TOPIC'),
	'EDIT_IMG' 			=> $user->img('btn_edit', 'EDIT_POST'),
	'DELETE_IMG' 		=> $user->img('btn_delete', 'DELETE_POST'),
	'INFO_IMG' 			=> $user->img('btn_info', 'VIEW_INFO'),
	'PROFILE_IMG'		=> $user->img('btn_profile', 'READ_PROFILE'),
	'SEARCH_IMG' 		=> $user->img('btn_search', 'SEARCH_USER_POSTS'),
	'PM_IMG' 			=> $user->img('btn_pm', 'SEND_PRIVATE_MESSAGE'),
	'EMAIL_IMG' 		=> $user->img('btn_email', 'SEND_EMAIL'),
	'WWW_IMG' 			=> $user->img('btn_www', 'VISIT_WEBSITE'),
	'ICQ_IMG' 			=> $user->img('btn_icq', 'ICQ'),
	'AIM_IMG' 			=> $user->img('btn_aim', 'AIM'),
	'MSN_IMG' 			=> $user->img('btn_msnm', 'MSNM'),
	'YIM_IMG' 			=> $user->img('btn_yim', 'YIM'),
	'JABBER_IMG'		=> $user->img('btn_jabber', 'JABBER') ,
	'REPORT_IMG'		=> $user->img('btn_report', 'REPORT_POST'),
	'REPORTED_IMG'		=> $user->img('icon_reported', 'POST_REPORTED'),
	'UNAPPROVED_IMG'	=> $user->img('icon_unapproved', 'POST_UNAPPROVED'),
	'WARN_IMG'			=> $user->img('btn_report', 'WARN_USER'),

	'S_SELECT_SORT_DIR' 	=> $s_sort_dir,
	'S_SELECT_SORT_KEY' 	=> $s_sort_key,
	'S_SELECT_SORT_DAYS' 	=> $s_limit_days,
	'S_TOPIC_ACTION' 		=> "{$phpbb_root_path}viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id&amp;start=$start",
	'S_TOPIC_MOD' 			=> ($topic_mod != '') ? '<select name="mode">' . $topic_mod . '</select>' : '',
	'S_MOD_ACTION' 			=> "{$phpbb_root_path}mcp.$phpEx?sid=" . $user->session_id . "&amp;t=$topic_id&amp;f=$forum_id&amp;quickmod=1",

	'S_DISPLAY_SEARCHBOX'	=> ($auth->acl_get('f_search', $forum_id)) ? true : false,
	'S_SEARCHBOX_ACTION'	=> "{$phpbb_root_path}search.$phpEx$SID&amp;search_forum[]=$forum_id",

	'U_TOPIC'				=> "{$server_path}viewtopic.$phpEx?f=$forum_id&amp;t=$topic_id",
	'U_FORUM'				=> $server_path,
	'U_VIEW_UNREAD_POST'	=> "{$phpbb_root_path}viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id&amp;view=unread#unread",
	'U_VIEW_TOPIC' 			=> $viewtopic_url,
	'U_VIEW_FORUM' 			=> "{$phpbb_root_path}viewforum.$phpEx$SID&amp;f=$forum_id",
	'U_VIEW_OLDER_TOPIC'	=> "{$phpbb_root_path}viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id&amp;view=previous",
	'U_VIEW_NEWER_TOPIC'	=> "{$phpbb_root_path}viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id&amp;view=next",
	'U_PRINT_TOPIC'			=> ($auth->acl_get('f_print', $forum_id)) ? $viewtopic_url . '&amp;view=print' : '',
	'U_EMAIL_TOPIC'			=> ($auth->acl_get('f_email', $forum_id) && $config['email_enable']) ? "{$phpbb_root_path}memberlist.$phpEx$SID&amp;mode=email&amp;t=$topic_id" : '',

	'U_WATCH_TOPIC' 		=> $s_watching_topic['link'],
	'L_WATCH_TOPIC' 		=> $s_watching_topic['title'],

	'U_BOOKMARK_TOPIC'		=> ($user->data['is_registered'] && $config['allow_bookmarks']) ? $viewtopic_url . '&amp;bookmark=1' : '',
	'L_BOOKMARK_TOPIC'		=> ($user->data['is_registered'] && $config['allow_bookmarks'] && $topic_data['bookmarked']) ? $user->lang['BOOKMARK_TOPIC_REMOVE'] : $user->lang['BOOKMARK_TOPIC'],

	'U_POST_NEW_TOPIC' 		=> "{$phpbb_root_path}posting.$phpEx$SID&amp;mode=post&amp;f=$forum_id",
	'U_POST_REPLY_TOPIC' 	=> "{$phpbb_root_path}posting.$phpEx$SID&amp;mode=reply&amp;f=$forum_id&amp;t=$topic_id",
	'U_BUMP_TOPIC'			=> (bump_topic_allowed($forum_id, $topic_data['topic_bumped'], $topic_data['topic_last_post_time'], $topic_data['topic_poster'], $topic_data['topic_last_poster_id'])) ? "{$phpbb_root_path}posting.$phpEx$SID&amp;mode=bump&amp;f=$forum_id&amp;t=$topic_id" : '')
);

// Does this topic contain a poll?
if (!empty($poll_start))
{
	$sql = 'SELECT o.*, p.bbcode_bitfield, p.bbcode_uid
		FROM ' . POLL_OPTIONS_TABLE . ' o, ' . POSTS_TABLE . " p
		WHERE o.topic_id = $topic_id
			AND p.post_id = {$topic_data['topic_first_post_id']}
			AND p.topic_id = o.topic_id
		ORDER BY o.poll_option_id";
	$result = $db->sql_query($sql);

	$poll_info = array();
	while ($row = $db->sql_fetchrow($result))
	{
		$poll_info[] = $row;
	}
	$db->sql_freeresult($result);

	$cur_voted_id = array();
	if ($user->data['is_registered'])
	{
		$sql = 'SELECT poll_option_id
			FROM ' . POLL_VOTES_TABLE . '
			WHERE topic_id = ' . $topic_id . '
				AND vote_user_id = ' . $user->data['user_id'];
		$result = $db->sql_query($sql);

		while ($row = $db->sql_fetchrow($result))
		{
			$cur_voted_id[] = $row['poll_option_id'];
		}
		$db->sql_freeresult($result);
	}
	else
	{
		// Cookie based guest tracking ... I don't like this but hum ho
		// it's oft requested. This relies on "nice" users who don't feel
		// the need to delete cookies to mess with results.
		if (isset($_COOKIE[$config['cookie_name'] . '_poll_' . $topic_id]))
		{
			$cur_voted_id = explode(',', $_COOKIE[$config['cookie_name'] . '_poll_' . $topic_id]);
		}
	}

	$s_can_vote = (((!sizeof($cur_voted_id) && $auth->acl_get('f_vote', $forum_id)) ||
		($auth->acl_get('f_votechg', $forum_id) && $topic_data['poll_vote_change'])) &&
		(($topic_fata['poll_length'] != 0 && $topic_data['poll_start'] + $topic_data['poll_length'] > time()) || $topic_data['poll_length'] == 0) &&
		$topic_data['topic_status'] != ITEM_LOCKED &&
		$topic_data['forum_status'] != ITEM_LOCKED) ? true : false;
	$s_display_results = (!$s_can_vote || ($s_can_vote && sizeof($cur_voted_id)) || $view == 'viewpoll') ? true : false;

	if ($update && $s_can_vote)
	{
		if (!sizeof($voted_id) || sizeof($voted_id) > $poll_max_options)
		{
			meta_refresh(5, "viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id");

			$message = (!sizeof($voted_id)) ? 'NO_VOTE_OPTION' : 'TOO_MANY_VOTE_OPTIONS';
			$message = $user->lang[$message] . '<br /><br />' . sprintf($user->lang['RETURN_TOPIC'], "<a href=\"viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id\">", '</a>');
			trigger_error($message);
		}

		foreach ($voted_id as $option)
		{
			if (in_array($option, $cur_voted_id))
			{
				continue;
			}

			$sql = 'UPDATE ' . POLL_OPTIONS_TABLE . "
				SET poll_option_total = poll_option_total + 1
				WHERE poll_option_id = $option
					AND topic_id = $topic_id";
			$db->sql_query($sql);

			if ($user->data['is_registered'])
			{
				$sql = 'INSERT INTO  ' . POLL_VOTES_TABLE . " (topic_id, poll_option_id, vote_user_id, vote_user_ip)
					VALUES ($topic_id, $option, " . $user->data['user_id'] . ", '$user->ip')";
				$db->sql_query($sql);
			}
		}

		foreach ($cur_voted_id as $option)
		{
			if (!in_array($option, $voted_id))
			{
				$sql = 'UPDATE ' . POLL_OPTIONS_TABLE . "
					SET poll_option_total = poll_option_total - 1
					WHERE poll_option_id = $option
						AND topic_id = $topic_id";
				$db->sql_query($sql);

				if ($user->data['is_registered'])
				{
					$sql = 'DELETE FROM ' . POLL_VOTES_TABLE . "
						WHERE topic_id = $topic_id
							AND poll_option_id = $option
							AND vote_user_id = " . $user->data['user_id'];
					$db->sql_query($sql);
				}
			}
		}

		if ($user->data['user_id'] == ANONYMOUS && !$user->data['is_bot'])
		{
			$user->set_cookie('poll_' . $topic_id, implode(',', $voted_id), time() + 31536000);
		}

		$sql = 'UPDATE ' . TOPICS_TABLE . '
			SET poll_last_vote = ' . time() . "
			WHERE topic_id = $topic_id";
		//, topic_last_post_time = ' . time() . " -- for bumping topics with new votes, ignore for now
		$db->sql_query($sql);

		meta_refresh(5, "viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id");

		$message = $user->lang['VOTE_SUBMITTED'] . '<br /><br />' . sprintf($user->lang['RETURN_TOPIC'], "<a href=\"viewtopic.$phpEx$SID&amp;f=$forum_id&amp;t=$topic_id\">", '</a>');
		trigger_error($message);
	}

	$poll_total = 0;
	foreach ($poll_info as $poll_option)
	{
		$poll_total += $poll_option['poll_option_total'];
	}

	if ($poll_info[0]['bbcode_bitfield'])
	{
		include_once($phpbb_root_path . 'includes/bbcode.'.$phpEx);
		$poll_bbcode = new bbcode();

		for ($i = 0, $size = sizeof($poll_info); $i < $size; $i++)
		{
			$poll_bbcode->bbcode_second_pass($poll_info[$i]['poll_option_text'], $poll_info[$i]['bbcode_uid'], $poll_option['bbcode_bitfield']);
			$poll_info[$i]['poll_option_text'] = smiley_text($poll_info[$i]['poll_option_text']);
			$poll_info[$i]['poll_option_text'] = str_replace("\n", '<br />', censor_text($poll_info[$i]['poll_option_text']));
		}

		$poll_bbcode->bbcode_second_pass($poll_title, $poll_info[0]['bbcode_uid'], $poll_info[0]['bbcode_bitfield']);
		$poll_title = smiley_text($poll_title);
		$poll_title = str_replace("\n", '<br />', censor_text($poll_title));

		unset($poll_bbcode);
	}

	foreach ($poll_info as $poll_option)
	{
		$option_pct = ($poll_total > 0) ? $poll_option['poll_option_total'] / $poll_total : 0;
		$option_pct_txt = sprintf("%.1d%%", ($option_pct * 100));

		$template->assign_block_vars('poll_option', array(
			'POLL_OPTION_ID' 		=> $poll_option['poll_option_id'],
			'POLL_OPTION_CAPTION' 	=> $poll_option['poll_option_text'],
			'POLL_OPTION_RESULT' 	=> $poll_option['poll_option_total'],
			'POLL_OPTION_PERCENT' 	=> $option_pct_txt,
			'POLL_OPTION_PCT'		=> round($option_pct * 100),
			'POLL_OPTION_IMG' 		=> $user->img('poll_center', $option_pct_txt, round($option_pct * 250)),
			'POLL_OPTION_VOTED'		=> (in_array($poll_option['poll_option_id'], $cur_voted_id)) ? true : false)
		);
	}

	$template->assign_vars(array(
		'POLL_QUESTION'		=> $poll_title,
		'TOTAL_VOTES' 		=> $poll_total,
		'POLL_LEFT_CAP_IMG'	=> $user->img('poll_left'),
		'POLL_RIGHT_CAP_IMG'=> $user->img('poll_right'),

		'L_MAX_VOTES'		=> ($poll_max_options == 1) ? $user->lang['MAX_OPTION_SELECT'] : sprintf($user->lang['MAX_OPTIONS_SELECT'], $poll_max_options),
		'L_POLL_LENGTH'		=> ($poll_length) ? sprintf($user->lang['POLL_RUN_TILL'], $user->format_date($poll_length + $poll_start)) : '',

		'S_HAS_POLL'		=> true,
		'S_CAN_VOTE'		=> $s_can_vote,
		'S_DISPLAY_RESULTS'	=> $s_display_results,
		'S_IS_MULTI_CHOICE'	=> ($poll_max_options > 1) ? true : false,
		'S_POLL_ACTION'		=> $viewtopic_url,

		'U_VIEW_RESULTS'	=> $viewtopic_url . '&amp;view=viewpoll')
	);

	unset($poll_info, $voted_id);
}

// If the user is trying to reach the second half of the topic, fetch it starting from the end
$store_reverse = false;
$sql_limit = $config['posts_per_page'];

if ($start > $total_posts / 2)
{
	$store_reverse = true;

	if ($start + $config['posts_per_page'] > $total_posts)
	{
		$sql_limit = min($config['posts_per_page'], max(1, $total_posts - $start));
	}

	// Select the sort order
	$sql_sort_order = $sort_by_sql[$sort_key] . ' ' . (($sort_dir == 'd') ? 'ASC' : 'DESC');
	$sql_start = max(0, $total_posts - $sql_limit - $start);
}
else
{
	// Select the sort order
	$sql_sort_order = $sort_by_sql[$sort_key] . ' ' . (($sort_dir == 'd') ? 'DESC' : 'ASC');
	$sql_start = $start;
}

// Container for user details, only process once
$post_list = $user_cache = $id_cache = $attachments = $attach_list = $rowset = $update_count = $post_edit_list = array();
$has_attachments = $display_notice = false;
$force_encoding = '';
$bbcode_bitfield = $i = $i_total = 0;

// Go ahead and pull all data for this topic
$sql = 'SELECT p.post_id
	FROM ' . POSTS_TABLE . ' p' . (($sort_by_sql[$sort_key]{0} == 'u') ? ', ' . USERS_TABLE . ' u': '') . "
	WHERE p.topic_id = $topic_id
		" . ((!$auth->acl_get('m_approve', $forum_id)) ? 'AND p.post_approved = 1' : '') . "
		" . (($sort_by_sql[$sort_key]{0} == 'u') ? 'AND u.user_id = p.poster_id': '') . "
		$limit_posts_time
	ORDER BY $sql_sort_order";
$result = $db->sql_query_limit($sql, $sql_limit, $sql_start);

$i = ($store_reverse) ? $sql_limit - 1 : 0;
while ($row = $db->sql_fetchrow($result))
{
	$post_list[$i] = $row['post_id'];
	($store_reverse) ? --$i : ++$i;
}
$db->sql_freeresult($result);

if (!sizeof($post_list))
{
	trigger_error($user->lang['NO_TOPIC']);
}

// Holding maximum post time for marking topic read
// We need to grab it because we do reverse ordering sometimes
$max_post_time = 0;

$sql = 'SELECT u.username, u.user_id, u.user_colour, u.user_posts, u.user_from, u.user_website, u.user_email, u.user_icq, u.user_aim, u.user_yim, u.user_jabber, u.user_regdate, u.user_msnm, u.user_allow_viewemail, u.user_allow_viewonline, u.user_rank, u.user_sig, u.user_sig_bbcode_uid, u.user_sig_bbcode_bitfield, u.user_avatar, u.user_avatar_type, u.user_avatar_width, u.user_avatar_height, z.friend, z.foe, p.*
	FROM (' . POSTS_TABLE . ' p, ' . USERS_TABLE . ' u)
	LEFT JOIN ' . ZEBRA_TABLE . ' z ON (z.user_id = ' . $user->data['user_id'] . ' AND z.zebra_id = p.poster_id)
	WHERE p.post_id IN (' . implode(', ', $post_list) . ')
		AND u.user_id = p.poster_id';
$result = $db->sql_query($sql);

// Posts are stored in the $rowset array while $attach_list, $user_cache
// and the global bbcode_bitfield are built
while ($row = $db->sql_fetchrow($result))
{
	// Set max_post_time
	if ($row['post_time'] > $max_post_time)
	{
		$max_post_time = $row['post_time'];
	}

	$poster_id = $row['poster_id'];
	$poster	= ($poster_id == ANONYMOUS) ? ((!empty($row['post_username'])) ? $row['post_username'] : $user->lang['GUEST']) : $row['username'];

	if (!$view || $view != 'show' || $post_id != $row['post_id'])
	{
		if ($row['foe'])
		{
			$rowset[$row['post_id']] = array(
				'foe'		=> true,
				'post_id'	=> $row['post_id'],
				'poster'	=> $poster,
			);

			continue;
		}
	}

	// Does post have an attachment? If so, add it to the list
	if ($row['post_attachment'] && $config['allow_attachments'])
	{
		$attach_list[] = $row['post_id'];

		if ($row['post_approved'])
		{
			$has_attachments = true;
		}
	}

	$rowset[$row['post_id']] = array(
		'post_id'			=> $row['post_id'],
		'post_time'			=> $row['post_time'],
		'poster'			=> ($row['user_colour']) ? '<span style="color:#' . $row['user_colour'] . '">' . $poster . '</span>' : $poster,
		'user_id'			=> $row['user_id'],
		'topic_id'			=> $row['topic_id'],
		'forum_id'			=> $row['forum_id'],
		'post_subject'		=> $row['post_subject'],
		'post_edit_count'	=> $row['post_edit_count'],
		'post_edit_time'	=> $row['post_edit_time'],
		'post_edit_reason'	=> $row['post_edit_reason'],
		'post_edit_user'	=> $row['post_edit_user'],
		'icon_id'			=> $row['icon_id'],
		'post_attachment'	=> $row['post_attachment'],
		'post_approved'		=> $row['post_approved'],
		'post_reported'		=> $row['post_reported'],
		'post_text'			=> $row['post_text'],
		'post_encoding'		=> $row['post_encoding'],
		'bbcode_uid'		=> $row['bbcode_uid'],
		'bbcode_bitfield'	=> $row['bbcode_bitfield'],
		'enable_html'		=> $row['enable_html'],
		'enable_smilies'	=> $row['enable_smilies'],
		'enable_sig'		=> $row['enable_sig'],
		'friend'			=> $row['friend'],
	);

	// Define the global bbcode bitfield, will be used to load bbcodes
	$bbcode_bitfield |= $row['bbcode_bitfield'];

	// Is a signature attached? Are we going to display it?
	if ($row['enable_sig'] && $config['allow_sig'] && $user->optionget('viewsigs'))
	{
		$bbcode_bitfield |= $row['user_sig_bbcode_bitfield'];
	}

	// Cache various user specific data ... so we don't have to recompute
	// this each time the same user appears on this page
	if (!isset($user_cache[$poster_id]))
	{
		if ($poster_id == ANONYMOUS)
		{
			$user_cache[$poster_id] = array(
				'joined'		=> '',
				'posts'			=> '',
				'from'			=> '',

				'sig'					=> '',
				'sig_bbcode_uid'		=> '',
				'sig_bbcode_bitfield'	=> '',

				'online'		=> false,
				'avatar'		=> '',
				'rank_title'	=> '',
				'rank_image'	=> '',
				'sig'			=> '',
				'posts'			=> '',
				'profile'		=> '',
				'pm'			=> '',
				'email'			=> '',
				'www'			=> '',
				'icq_status_img'=> '',
				'icq'			=> '',
				'aim'			=> '',
				'msn'			=> '',
				'yim'			=> '',
				'jabber'		=> '',
				'search'		=> '',
				'username'		=> ($row['user_colour']) ? '<span style="color:#' . $row['user_colour'] . '">' . $poster . '</span>' : $poster
			);
		}
		else
		{
			$user_sig = '';

			if ($row['enable_sig'] && $config['allow_sig'] && $user->optionget('viewsigs'))
			{
				$user_sig = $row['user_sig'];
			}

			$id_cache[] = $poster_id;
			
			$user_cache[$poster_id] = array(
				'joined'		=> $user->format_date($row['user_regdate'], $user->lang['DATE_FORMAT']),
				'posts'			=> $row['user_posts'],
				'warnings'		=> (isset($row['user_warnings'])) ? $row['user_warnings'] : 0,
				'from'			=> (!empty($row['user_from'])) ? $row['user_from'] : '',

				'sig'					=> $user_sig,
				'sig_bbcode_uid'		=> (!empty($row['user_sig_bbcode_uid'])) ? $row['user_sig_bbcode_uid']  : '',
				'sig_bbcode_bitfield'	=> (!empty($row['user_sig_bbcode_bitfield'])) ? $row['user_sig_bbcode_bitfield']  : '',

				'viewonline'	=> $row['user_allow_viewonline'],

				'avatar'		=> '',

				'online'		=> false,
				'profile'		=> "{$phpbb_root_path}memberlist.$phpEx$SID&amp;mode=viewprofile&amp;u=$poster_id",
				'www'			=> $row['user_website'],
				'aim'			=> ($row['user_aim']) ? "{$phpbb_root_path}memberlist.$phpEx$SID&amp;mode=contact&amp;action=aim&amp;u=$poster_id" : '',
				'msn'			=> ($row['user_msnm']) ? "{$phpbb_root_path}memberlist.$phpEx$SID&amp;mode=contact&amp;action=msnm&amp;u=$poster_id" : '',
				'yim'			=> ($row['user_yim']) ? 'http://edit.yahoo.com/config/send_webmesg?.target=' . $row['user_yim'] . '&.src=pg' : '',
				'jabber'		=> ($row['user_jabber']) ? "{$phpbb_root_path}memberlist.$phpEx$SID&amp;mode=contact&amp;action=jabber&amp;u=$poster_id" : '',
				'search'		=> ($auth->acl_get('u_search')) ? "{$phpbb_root_path}search.$phpEx$SID&amp;search_author=" . urlencode($row['username']) .'&amp;showresults=posts' : '',
				'username'		=> ($row['user_colour']) ? '<span style="color:#' . $row['user_colour'] . '">' . $poster . '</span>' : $poster
			);

			if ($row['user_avatar'] && $user->optionget('viewavatars'))
			{
				$avatar_img = '';
				switch ($row['user_avatar_type'])
				{
					case AVATAR_UPLOAD:
						$avatar_img = $config['avatar_path'] . '/';
						break;
					case AVATAR_GALLERY:
						$avatar_img = $config['avatar_gallery_path'] . '/';
						break;
				}
				$avatar_img .= $row['user_avatar'];

				$user_cache[$poster_id]['avatar'] = '<img src="' . $avatar_img . '" width="' . $row['user_avatar_width'] . '" height="' . $row['user_avatar_height'] . '" border="0" alt="" />';
			}

			if (!empty($row['user_rank']))
			{
				$user_cache[$poster_id]['rank_title'] = (isset($ranks['special'][$row['user_rank']])) ? $ranks['special'][$row['user_rank']]['rank_title'] : '';
				$user_cache[$poster_id]['rank_image'] = (!empty($ranks['special'][$row['user_rank']]['rank_image'])) ? '<img src="' . $config['ranks_path'] . '/' . $ranks['special'][$row['user_rank']]['rank_image'] . '" border="0" alt="' . $ranks['special'][$row['user_rank']]['rank_title'] . '" title="' . $ranks['special'][$row['user_rank']]['rank_title'] . '" /><br />' : '';
				$user_cache[$poster_id]['rank_image_src'] = (!empty($ranks['special'][$row['user_rank']]['rank_image'])) ? $config['ranks_path'] . '/' . $ranks['special'][$row['user_rank']]['rank_image'] : '';
			}
			else
			{
				if (isset($ranks['normal']) && sizeof($ranks['normal']))
				{
					foreach ($ranks['normal'] as $rank)
					{
						if ($row['user_posts'] >= $rank['rank_min'])
						{
							$user_cache[$poster_id]['rank_title'] = $rank['rank_title'];
							$user_cache[$poster_id]['rank_image'] = (!empty($rank['rank_image'])) ? '<img src="' . $config['ranks_path'] . '/' . $rank['rank_image'] . '" border="0" alt="' . $rank['rank_title'] . '" title="' . $rank['rank_title'] . '" /><br />' : '';
							$user_cache[$poster_id]['rank_image_src'] = (!empty($rank['rank_image'])) ? $config['ranks_path'] . '/' . $rank['rank_image'] : '';
							break;
						}
					}
				}
				else
				{
					$user_cache[$poster_id]['rank_title'] = '';
					$user_cache[$poster_id]['rank_image'] = '';
					$user_cache[$poster_id]['rank_image_src'] = '';
				}
			}

			if (!empty($row['user_allow_viewemail']) || $auth->acl_get('a_email'))
			{
				$user_cache[$poster_id]['email'] = ($config['board_email_form'] && $config['email_enable']) ? "{$phpbb_root_path}memberlist.$phpEx$SID&amp;mode=email&amp;u=$poster_id" : (($config['board_hide_emails'] && !$auth->acl_get('a_email')) ? '' : 'mailto:' . $row['user_email']);
			}
			else
			{
				$user_cache[$poster_id]['email'] = '';
			}

			if (!empty($row['user_icq']))
			{
				$user_cache[$poster_id]['icq'] =  "{$phpbb_root_path}memberlist.$phpEx$SID&amp;mode=contact&amp;action=icq&amp;u=$poster_id";
				$user_cache[$poster_id]['icq_status_img'] = '<img src="http://web.icq.com/whitepages/online?icq=' . $row['user_icq'] . '&amp;img=5" width="18" height="18" border="0" />';
			}
			else
			{
				$user_cache[$poster_id]['icq_status_img'] = '';
				$user_cache[$poster_id]['icq'] = '';
			}
		}
	}
}
$db->sql_freeresult($result);

// Load custom profile fields
if ($config['load_cpf_viewtopic'])
{
	include($phpbb_root_path . 'includes/functions_profile_fields.' . $phpEx);
	$cp = new custom_profile();

	// Grab all profile fields from users in id cache for later use - similar to the poster cache
	$profile_fields_cache = $cp->generate_profile_fields_template('grab', $id_cache);
}

// Generate online information for user
if ($config['load_onlinetrack'] && sizeof($id_cache))
{
	$sql = 'SELECT session_user_id, MAX(session_time) as online_time, MIN(session_viewonline) AS viewonline
		FROM ' . SESSIONS_TABLE . '
		WHERE session_user_id IN (' . implode(', ', $id_cache) . ')
		GROUP BY session_user_id';
	$result = $db->sql_query($sql);

	$update_time = $config['load_online_time'] * 60;
	while ($row = $db->sql_fetchrow($result))
	{
		$user_cache[$row['session_user_id']]['online'] = (time() - $update_time < $row['online_time'] && (($row['viewonline'] && $user_cache[$row['session_user_id']]['viewonline']) || $auth->acl_get('u_viewonline'))) ? true : false;
	}
}
unset($id_cache);

// Pull attachment data
if (sizeof($attach_list))
{
	if ($auth->acl_gets('f_download', 'u_download', $forum_id))
	{
		$sql = 'SELECT *
			FROM ' . ATTACHMENTS_TABLE . '
			WHERE post_msg_id IN (' . implode(', ', $attach_list) . ')
				AND in_message = 0
			ORDER BY filetime ' . ((!$config['display_order']) ? 'DESC' : 'ASC') . ', post_msg_id ASC';
		$result = $db->sql_query($sql);

		while ($row = $db->sql_fetchrow($result))
		{
			$attachments[$row['post_msg_id']][] = $row;
		}
		$db->sql_freeresult($result);

		// No attachments exist, but post table thinks they do so go ahead and reset post_attach flags
		if (!sizeof($attachments))
		{
			$sql = 'UPDATE ' . POSTS_TABLE . '
				SET post_attachment = 0
				WHERE post_id IN (' . implode(', ', $attach_list) . ')';
			$db->sql_query($sql);

			// We need to update the topic indicator too if the complete topic is now without an attachment
			if (sizeof($rowset) != $total_posts)
			{
				// Not all posts are displayed so we query the db to find if there's any attachment for this topic
				$sql = 'SELECT a.post_msg_id as post_id
					FROM ' . ATTACHMENTS_TABLE . ' a, ' . POSTS_TABLE . " p
					WHERE p.topic_id = $topic_id
						AND p.post_approved = 1
						AND p.topic_id = a.topic_id";
				$result = $db->sql_query_limit($sql, 1);

				if (!$db->sql_fetchrow($result))
				{
					$sql = 'UPDATE ' . TOPICS_TABLE . "
						SET topic_attachment = 0
						WHERE topic_id = $topic_id";
					$db->sql_query($sql);
				}
			}
			else
			{
				$sql = 'UPDATE ' . TOPICS_TABLE . "
					SET topic_attachment = 0
					WHERE topic_id = $topic_id";
				$db->sql_query($sql);
			}
		}
		else if ($has_attachments && !$topic_data['topic_attachment'])
		{
			// Topic has approved attachments but its flag is wrong
			$sql = 'UPDATE ' . TOPICS_TABLE . "
				SET topic_attachment = 1
				WHERE topic_id = $topic_id";
			$db->sql_query($sql);

			$topic_data['topic_attachment'] = 1;
		}
	}
	else
	{
		$display_notice = true;
	}
}

// Instantiate BBCode if need be
if ($bbcode_bitfield)
{
	include_once($phpbb_root_path . 'includes/bbcode.'.$phpEx);
	$bbcode = new bbcode($bbcode_bitfield);
}

$i_total = sizeof($rowset) - 1;
$prev_post_id = '';

$template->assign_vars(array(
	'S_NUM_POSTS' => sizeof($post_list))
);

// Output the posts
$first_unread = false;
for ($i = 0, $end = sizeof($post_list); $i < $end; ++$i)
{
	$row =& $rowset[$post_list[$i]];
	$poster_id = $row['user_id'];

	// Three situations can prevent a post being display:
	// i)   The posters karma is below the minimum of the user ... not in 2.2.x
	// ii)  The poster is on the users ignore list
	// iii) The post was made in a codepage different from the users
	if (isset($row['foe']) && $row['foe'])
	{
		$template->assign_block_vars('postrow', array(
			'S_IGNORE_POST' => true,
			'L_IGNORE_POST' => sprintf($user->lang['POST_BY_FOE'], $row['poster'], "<a href=\"viewtopic.$phpEx$SID&amp;f=$forum_id&amp;p=" . $row['post_id'] . '&amp;view=show#' . $row['post_id'] . '">', '</a>'))
		);

		continue;
	}
	else if ($row['post_encoding'] != $user->lang['ENCODING'])
	{
		if ($view == 'encoding' && $post_id == $row['post_id'])
		{
			$force_encoding = $row['post_encoding'];
		}
		else
		{
			$template->assign_block_vars('postrow', array(
				'S_IGNORE_POST'	=> true,
				'L_IGNORE_POST'	=> sprintf($user->lang['POST_ENCODING'], $row['poster'], '<a href="viewtopic.' . $phpEx . $SID . '&amp;p=' . $row['post_id'] . '&amp;view=encoding#' . $row['post_id'] . '">', '</a>'))
			);

			continue;
		}
	}

	// End signature parsing, only if needed
	if ($user_cache[$poster_id]['sig'] && empty($user_cache[$poster_id]['sig_parsed']))
	{
		if ($user_cache[$poster_id]['sig_bbcode_bitfield'])
		{
			$bbcode->bbcode_second_pass($user_cache[$poster_id]['sig'], $user_cache[$poster_id]['sig_bbcode_uid'], $user_cache[$poster_id]['sig_bbcode_bitfield']);
		}

		$user_cache[$poster_id]['sig'] = smiley_text($user_cache[$poster_id]['sig']);
		$user_cache[$poster_id]['sig'] = str_replace("\n", '<br />', censor_text($user_cache[$poster_id]['sig']));
		$user_cache[$poster_id]['sig_parsed'] = true;
	}

	// Parse the message and subject
	$message = $row['post_text'];

	// If the board has HTML off but the post has HTML on then we process it, else leave it alone
	if (!$auth->acl_get('f_html', $forum_id) && $row['enable_html'])
	{
		$message = preg_replace('#(<!\-\- h \-\-><)([\/]?.*?)(><!\-\- h \-\->)#is', "&lt;\\2&gt;", $message);
	}

	// Second parse bbcode here
	if ($row['bbcode_bitfield'])
	{
		$bbcode->bbcode_second_pass($message, $row['bbcode_uid'], $row['bbcode_bitfield']);
	}

	// Always process smilies after parsing bbcodes
	$message = smiley_text($message);

	if (isset($attachments[$row['post_id']]) && sizeof($attachments[$row['post_id']]))
	{
		$unset_attachments = parse_inline_attachments($message, $attachments[$row['post_id']], $update_count, $forum_id);

		// Needed to let not display the inlined attachments at the end of the post again
		foreach ($unset_attachments as $index)
		{
			unset($attachments[$row['post_id']][$index]);
		}
	}

	// Highlight active words (primarily for search)
	if ($highlight_match)
	{
		$message = preg_replace('#(?!<.*)(?<!\w)(' . $highlight_match . ')(?!\w|[^<>]*>)#i', '<span class="posthilit">\1</span>', $message);
	}

	if ($row['enable_html'] && $auth->acl_get('f_html', $forum_id))
	{
		// Remove Comments from post content
		$message = preg_replace('#<!\-\-(.*?)\-\->#is', '', $message);
	}

	// Replace naughty words such as farty pants
	$row['post_subject'] = censor_text($row['post_subject']);
	$message = str_replace("\n", '<br />', censor_text($message));

	// Editing information
	if (($row['post_edit_count'] && $config['display_last_edited']) || $row['post_edit_reason'])
	{
		// Get usernames for all following posts if not already stored
		if (!sizeof($post_edit_list) && $row['post_edit_reason'])
		{
			// Remove all post_ids already parsed (we do not have to check them)
			$post_storage_list = (!$store_reverse) ? array_slice($post_list, $i) : array_slice(array_reverse($post_list), $i);

			$sql = 'SELECT DISTINCT u.user_id, u.username, u.user_colour
				FROM ' . POSTS_TABLE . ' p, ' . USERS_TABLE . ' u
				WHERE p.post_id IN (' . implode(', ', $post_storage_list) . ")
					AND p.post_edit_count <> 0
					AND p.post_edit_user <> 0
					AND p.post_edit_reason <> ''
					AND p.post_edit_user = u.user_id";
			$result2 = $db->sql_query($sql);
			while ($user_edit_row = $db->sql_fetchrow($result2))
			{
				$post_edit_list[$user_edit_row['user_id']] = $user_edit_row;
			}
			$db->sql_freeresult($result2);

			unset($post_storage_list);
		}

		$l_edit_time_total = ($row['post_edit_count'] == 1) ? $user->lang['EDITED_TIME_TOTAL'] : $user->lang['EDITED_TIMES_TOTAL'];

		if ($row['post_edit_reason'])
		{
			$user_edit_row = $post_edit_list[$row['post_edit_user']];
			$l_edited_by = sprintf($l_edit_time_total, (!$row['post_edit_user']) ? $row['poster'] : (($user_edit_row['user_colour']) ? '<span style="color:#' . $user_edit_row['user_colour'] . '">' . $user_edit_row['username'] . '</span>' : $user_edit_row['username']), $user->format_date($row['post_edit_time']), $row['post_edit_count']);
		}
		else
		{
			$l_edited_by = sprintf($l_edit_time_total, (!$row['post_edit_user']) ? $row['poster'] : $user_cache[$row['post_edit_user']]['username'], $user->format_date($row['post_edit_time']), $row['post_edit_count']);
		}
	}
	else
	{
		$l_edited_by = '';
	}

	// Bump information
	if ($topic_data['topic_bumped'] && $row['post_id'] == $topic_data['topic_last_post_id'])
	{
		// It is safe to grab the username from the user cache array, we are at the last
		// post and only the topic poster and last poster are allowed to bump
		$l_bumped_by = '<br /><br />' . sprintf($user->lang['BUMPED_BY'], $user_cache[$topic_data['topic_bumper']]['username'], $user->format_date($topic_data['topic_last_post_time']));
	}
	else
	{
		$l_bumped_by = '';
	}

	$cp_row = array();

	//
	if ($config['load_cpf_viewtopic'])
	{
		$cp_row = (isset($profile_fields_cache[$poster_id])) ? $cp->generate_profile_fields_template('show', false, $profile_fields_cache[$poster_id]) : array();
	}

	$post_unread = (isset($topic_tracking_info[$topic_id]) && $row['post_time'] > $topic_tracking_info[$topic_id]) ? true : false;
	
	$s_first_unread = false;
	if (!$first_unread && $post_unread)
	{
		$s_first_unread = $first_unread = true;
	}

	//
	$postrow = array(
		'POSTER_NAME' 	=> $row['poster'],
		'POSTER_RANK' 	=> $user_cache[$poster_id]['rank_title'],
		'RANK_IMAGE' 	=> $user_cache[$poster_id]['rank_image'],
		'RANK_IMAGE_SRC' => $user_cache[$poster_id]['rank_image_src'],
		'POSTER_JOINED' => $user_cache[$poster_id]['joined'],
		'POSTER_POSTS' 	=> $user_cache[$poster_id]['posts'],
		'POSTER_FROM' 	=> $user_cache[$poster_id]['from'],
		'POSTER_AVATAR' => $user_cache[$poster_id]['avatar'],
		'POSTER_WARNINGS'	=> $user_cache[$poster_id]['warnings'],

		'POST_DATE' 	=> $user->format_date($row['post_time']),
		'POST_SUBJECT' 	=> $row['post_subject'],
		'MESSAGE' 		=> $message,
		'SIGNATURE' 	=> ($row['enable_sig']) ? $user_cache[$poster_id]['sig'] : '',
		'EDITED_MESSAGE'=> $l_edited_by,
		'EDIT_REASON'	=> $row['post_edit_reason'],
		'BUMPED_MESSAGE'=> $l_bumped_by,

		'MINI_POST_IMG'		=> ($post_unread) ? $user->img('icon_post_new', 'NEW_POST') : $user->img('icon_post', 'POST'),
		'POST_ICON_IMG'		=> (!empty($row['icon_id'])) ? $icons[$row['icon_id']]['img'] : '',
		'POST_ICON_IMG_WIDTH'	=> (!empty($row['icon_id'])) ? $icons[$row['icon_id']]['width'] : '',
		'POST_ICON_IMG_HEIGHT'	=> (!empty($row['icon_id'])) ? $icons[$row['icon_id']]['height'] : '',
		'ICQ_STATUS_IMG'	=> $user_cache[$poster_id]['icq_status_img'],
		'ONLINE_IMG'		=> ($poster_id == ANONYMOUS || !$config['load_onlinetrack']) ? '' : (($user_cache[$poster_id]['online']) ? $user->img('btn_online', 'ONLINE') : $user->img('btn_offline', 'OFFLINE')),

		'U_EDIT' 			=> (($user->data['user_id'] == $poster_id && $auth->acl_get('f_edit', $forum_id) && ($row['post_time'] > time() - $config['edit_time'] || !$config['edit_time'])) || $auth->acl_get('m_edit', $forum_id)) ? "posting.$phpEx$SID&amp;mode=edit&amp;f=$forum_id&amp;p=" . $row['post_id'] : '',
		'U_QUOTE' 			=> ($auth->acl_get('f_quote', $forum_id)) ? "posting.$phpEx$SID&amp;mode=quote&amp;f=$forum_id&amp;p=" . $row['post_id'] : '',
		'U_INFO'			=> ($auth->acl_get('m_', $forum_id)) ? "mcp.$phpEx$SID&amp;i=main&amp;mode=post_details&amp;p=" . $row['post_id'] : '',
		'U_DELETE' 			=> (($user->data['user_id'] == $poster_id && $auth->acl_get('f_delete', $forum_id) && $topic_data['topic_last_post_id'] == $row['post_id'] && ($row['post_time'] > time() - $config['edit_time'] || !$config['edit_time'])) || $auth->acl_get('m_delete', $forum_id)) ? "posting.$phpEx$SID&amp;mode=delete&amp;f=$forum_id&amp;p=" . $row['post_id'] : '',

		'U_PROFILE' 		=> $user_cache[$poster_id]['profile'],
		'U_SEARCH' 			=> $user_cache[$poster_id]['search'],
		'U_PM' 				=> ($poster_id != ANONYMOUS) ? "{$phpbb_root_path}ucp.$phpEx$SID&amp;i=pm&amp;mode=compose&amp;action=quotepost&amp;p=" . $row['post_id'] : '',
		'U_EMAIL' 			=> $user_cache[$poster_id]['email'],
		'U_WWW' 			=> $user_cache[$poster_id]['www'],
		'U_ICQ' 			=> $user_cache[$poster_id]['icq'],
		'U_AIM' 			=> $user_cache[$poster_id]['aim'],
		'U_MSN' 			=> $user_cache[$poster_id]['msn'],
		'U_YIM' 			=> $user_cache[$poster_id]['yim'],
		'U_JABBER'			=> $user_cache[$poster_id]['jabber'],

		'U_REPORT'			=> "{$phpbb_root_path}report.$phpEx$SID&amp;p=" . $row['post_id'],
		'U_MCP_REPORT'		=> ($auth->acl_gets('m_', 'a_', 'f_report', $forum_id)) ? "{$phpbb_root_path}mcp.$phpEx$SID&amp;i=main&amp;mode=post_details&amp;p=" . $row['post_id'] : '',
		'U_MCP_APPROVE'		=> ($auth->acl_get('m_approve', $forum_id)) ? "{$phpbb_root_path}mcp.$phpEx$SID&amp;i=queue&amp;mode=approve&amp;post_id_list[]=" . $row['post_id'] : '',
		'U_MINI_POST'		=> "{$phpbb_root_path}viewtopic.$phpEx$SID&amp;p=" . $row['post_id'] . '#' . $row['post_id'],
		'U_NEXT_POST_ID'	=> ($i < $i_total && isset($rowset[$i + 1])) ? $rowset[$i + 1]['post_id'] : '',
		'U_PREV_POST_ID'	=> $prev_post_id,
		'U_NOTES'			=> ($auth->acl_gets('m_', 'a_')) ? "{$phpbb_root_path}mcp.$phpEx$SID&amp;i=notes&amp;mode=user_notes&amp;u=" . $poster_id : '',
		'U_WARN'			=> ($auth->acl_gets('m_', 'a_', $forum_id)) ? "{$phpbb_root_path}mcp.$phpEx$SID&amp;i=warn&amp;mode=warn_post&amp;p=" . $row['post_id'] : '',

		'POST_ID'			=> $row['post_id'],

		'S_HAS_ATTACHMENTS' => (!empty($attachments[$row['post_id']])) ? true : false,
		'S_POST_UNAPPROVED'	=> ($row['post_approved']) ? false : true,
		'S_POST_REPORTED'	=> ($row['post_reported'] && $auth->acl_get('m_', $forum_id)) ? true : false,
		'S_DISPLAY_NOTICE'	=> $display_notice && $row['post_attachment'],
		'S_FRIEND'			=> ($row['friend']) ? true : false,
		'S_UNREAD_POST'		=> $post_unread,
		'S_FIRST_UNREAD'	=> $s_first_unread,
		'S_CUSTOM_FIELDS'	=> (isset($cp_row['row']) && sizeof($cp_row['row'])) ? true : false
	);

	if (isset($cp_row['row']) && sizeof($cp_row['row']))
	{
		$postrow = array_merge($postrow, $cp_row['row']);
	}

	// Dump vars into template
	$template->assign_block_vars('postrow', $postrow);

	if (isset($cp_row['blockrow']) && sizeof($cp_row['blockrow']))
	{
		foreach ($cp_row['blockrow'] as $field_data)
		{
			$template->assign_block_vars('postrow.custom_fields', $field_data);
		}
	}

	// Display not already displayed Attachments for this post, we already parsed them. ;)
	if (isset($attachments[$row['post_id']]) && sizeof($attachments[$row['post_id']]))
	{
		foreach ($attachments[$row['post_id']] as $attachment)
		{
			$template->assign_block_vars('postrow.attachment', array(
				'DISPLAY_ATTACHMENT'	=> $attachment)
			);
		}
	}

	$prev_post_id = $row['post_id'];

	unset($rowset[$i]);
	unset($attachments[$row['post_id']]);
}
unset($rowset);
unset($user_cache);

// Update topic view and if necessary attachment view counters ... but only
// if this is the first 'page view'
if (isset($user->data['session_page']) && !preg_match("#&t=$topic_id#", $user->data['session_page']))
{
	$sql = 'UPDATE ' . TOPICS_TABLE . '
		SET topic_views = topic_views + 1, topic_last_view_time = ' . time() . "
		WHERE topic_id = $topic_id";
	$db->sql_query($sql);

	// Update the attachment download counts
	if (sizeof($update_count))
	{
		$sql = 'UPDATE ' . ATTACHMENTS_TABLE . '
			SET download_count = download_count + 1
			WHERE attach_id IN (' . implode(', ', array_unique($update_count)) . ')';
		$db->sql_query($sql);
	}
}

// Only mark topic if it's currently unread
if (isset($topic_tracking_info[$topic_id]) && $topic_data['topic_last_post_time'] > $topic_tracking_info[$topic_id])
{
	markread('topic', $forum_id, $topic_id, $max_post_time);
}

// Change encoding if appropriate
if ($force_encoding != '')
{
	$user->lang['ENCODING'] = $force_encoding;
}

// Output the page
page_header($user->lang['VIEW_TOPIC'] .' - ' . $topic_data['topic_title']);

$template->set_filenames(array(
	'body' => ($view == 'print') ? 'viewtopic_print.html' : 'viewtopic_body.html')
);
make_jumpbox('viewforum.'.$phpEx, $forum_id);

page_footer();

?>