/phpBB/viewtopic.php

Large files files are truncated, but you can click here to view the full file

<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/

/**
* @ignore
*/
define('IN_PHPBB', true);
$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
include($phpbb_root_path . 'common.' . $phpEx);
include($phpbb_root_path . 'includes/functions_display.' . $phpEx);
include($phpbb_root_path . 'includes/bbcode.' . $phpEx);
include($phpbb_root_path . 'includes/functions_user.' . $phpEx);

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

// Initial var setup
$forum_id	= $request->variable('f', 0);
$topic_id	= $request->variable('t', 0);
$post_id	= $request->variable('p', 0);
$voted_id	= $request->variable('vote_id', array('' => 0));

$voted_id = (count($voted_id) > 1) ? array_unique($voted_id) : $voted_id;


$start		= $request->variable('start', 0);
$view		= $request->variable('view', '');

$default_sort_days	= (!empty($user->data['user_post_show_days'])) ? $user->data['user_post_show_days'] : 0;
$default_sort_key	= (!empty($user->data['user_post_sortby_type'])) ? $user->data['user_post_sortby_type'] : 't';
$default_sort_dir	= (!empty($user->data['user_post_sortby_dir'])) ? $user->data['user_post_sortby_dir'] : 'a';

$sort_days	= $request->variable('st', $default_sort_days);
$sort_key	= $request->variable('sk', $default_sort_key);
$sort_dir	= $request->variable('sd', $default_sort_dir);

$update		= $request->variable('update', false);

/* @var $pagination \phpbb\pagination */
$pagination = $phpbb_container->get('pagination');

$s_can_vote = false;
/**
* @todo normalize?
*/
$hilit_words	= $request->variable('hilit', '', true);

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

/* @var $phpbb_content_visibility \phpbb\content_visibility */
$phpbb_content_visibility = $phpbb_container->get('content.visibility');

// 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";
		$result = $db->sql_query($sql);
		$forum_id = (int) $db->sql_fetchfield('forum_id');
		$db->sql_freeresult($result);

		if (!$forum_id)
		{
			trigger_error('NO_TOPIC');
		}
	}

	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 post_id, topic_id, forum_id
			FROM ' . POSTS_TABLE . "
			WHERE topic_id = $topic_id
				AND " . $phpbb_content_visibility->get_visibility_sql('post', $forum_id) . "
				AND post_time > $topic_last_read
				AND forum_id = $forum_id
			ORDER BY post_time ASC, post_id ASC";
		$result = $db->sql_query_limit($sql, 1);
		$row = $db->sql_fetchrow($result);
		$db->sql_freeresult($result);

		if (!$row)
		{
			$sql = 'SELECT topic_last_post_id as post_id, topic_id, forum_id
				FROM ' . TOPICS_TABLE . '
				WHERE topic_id = ' . $topic_id;
			$result = $db->sql_query($sql);
			$row = $db->sql_fetchrow($result);
			$db->sql_freeresult($result);
		}

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

			trigger_error('NO_TOPIC');
		}

		$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 forum_id, topic_last_post_time
			FROM ' . TOPICS_TABLE . '
			WHERE topic_id = ' . $topic_id;
		$result = $db->sql_query($sql);
		$row = $db->sql_fetchrow($result);
		$db->sql_freeresult($result);

		if (!$row)
		{
			$user->setup('viewtopic');
			// OK, the topic doesn't exist. This error message is not helpful, but technically correct.
			trigger_error(($view == 'next') ? 'NO_NEWER_TOPICS' : 'NO_OLDER_TOPICS');
		}
		else
		{
			$sql = 'SELECT topic_id, forum_id
				FROM ' . TOPICS_TABLE . '
				WHERE forum_id = ' . $row['forum_id'] . "
					AND topic_moved_id = 0
					AND topic_last_post_time $sql_condition {$row['topic_last_post_time']}
					AND " . $phpbb_content_visibility->get_visibility_sql('topic', $row['forum_id']) . "
				ORDER BY topic_last_post_time $sql_ordering, topic_last_post_id $sql_ordering";
			$result = $db->sql_query_limit($sql, 1);
			$row = $db->sql_fetchrow($result);
			$db->sql_freeresult($result);

			if (!$row)
			{
				$sql = 'SELECT forum_style
					FROM ' . FORUMS_TABLE . "
					WHERE forum_id = $forum_id";
				$result = $db->sql_query($sql);
				$forum_style = (int) $db->sql_fetchfield('forum_style');
				$db->sql_freeresult($result);

				$user->setup('viewtopic', $forum_style);
				trigger_error(($view == 'next') ? 'NO_NEWER_TOPICS' : 'NO_OLDER_TOPICS');
			}
			else
			{
				$topic_id = $row['topic_id'];
				$forum_id = $row['forum_id'];
			}
		}
	}

	if (isset($row) && $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)
$sql_array = array(
	'SELECT'	=> 't.*, f.*',

	'FROM'		=> array(FORUMS_TABLE => 'f'),
);

// The FROM-Order is quite important here, else t.* columns can not be correctly bound.
if ($post_id)
{
	$sql_array['SELECT'] .= ', p.post_visibility, p.post_time, p.post_id';
	$sql_array['FROM'][POSTS_TABLE] = 'p';
}

// Topics table need to be the last in the chain
$sql_array['FROM'][TOPICS_TABLE] = 't';

if ($user->data['is_registered'])
{
	$sql_array['SELECT'] .= ', tw.notify_status';
	$sql_array['LEFT_JOIN'] = array();

	$sql_array['LEFT_JOIN'][] = array(
		'FROM'	=> array(TOPICS_WATCH_TABLE => 'tw'),
		'ON'	=> 'tw.user_id = ' . $user->data['user_id'] . ' AND t.topic_id = tw.topic_id'
	);

	if ($config['allow_bookmarks'])
	{
		$sql_array['SELECT'] .= ', bm.topic_id as bookmarked';
		$sql_array['LEFT_JOIN'][] = array(
			'FROM'	=> array(BOOKMARKS_TABLE => 'bm'),
			'ON'	=> 'bm.user_id = ' . $user->data['user_id'] . ' AND t.topic_id = bm.topic_id'
		);
	}

	if ($config['load_db_lastread'])
	{
		$sql_array['SELECT'] .= ', tt.mark_time, ft.mark_time as forum_mark_time';

		$sql_array['LEFT_JOIN'][] = array(
			'FROM'	=> array(TOPICS_TRACK_TABLE => 'tt'),
			'ON'	=> 'tt.user_id = ' . $user->data['user_id'] . ' AND t.topic_id = tt.topic_id'
		);

		$sql_array['LEFT_JOIN'][] = array(
			'FROM'	=> array(FORUMS_TRACK_TABLE => 'ft'),
			'ON'	=> 'ft.user_id = ' . $user->data['user_id'] . ' AND t.forum_id = ft.forum_id'
		);
	}
}

if (!$post_id)
{
	$sql_array['WHERE'] = "t.topic_id = $topic_id";
}
else
{
	$sql_array['WHERE'] = "p.post_id = $post_id AND t.topic_id = p.topic_id";
}

$sql_array['WHERE'] .= ' AND f.forum_id = t.forum_id';

$sql = $db->sql_build_query('SELECT', $sql_array);
$result = $db->sql_query($sql);
$topic_data = $db->sql_fetchrow($result);
$db->sql_freeresult($result);

// link to unapproved post or incorrect link
if (!$topic_data)
{
	// If post_id was submitted, we try at least to display the topic as a last resort...
	if ($post_id && $topic_id)
	{
		redirect(append_sid("{$phpbb_root_path}viewtopic.$phpEx", "t=$topic_id" . (($forum_id) ? "&amp;f=$forum_id" : '')));
	}

	trigger_error('NO_TOPIC');
}

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

/**
 * Modify the forum ID to handle the correct display of viewtopic if needed
 *
 * @event core.viewtopic_modify_forum_id
 * @var string	forum_id		forum ID
 * @var array	topic_data		array of topic's data
 * @since 3.2.5-RC1
 */
$vars = array(
	'forum_id',
	'topic_data',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_modify_forum_id', compact($vars)));

// If the request is missing the f parameter, the forum id in the user session data is 0 at the moment.
// Let's fix that now so that the user can't hide from the forum's Who Is Online list.
$user->page['forum'] = $forum_id;

// Now we know the forum_id and can check the permissions
if (!$phpbb_content_visibility->is_visible('topic', $forum_id, $topic_data))
{
	trigger_error('NO_TOPIC');
}

// This is for determining where we are (page)
if ($post_id)
{
	// are we where we are supposed to be?
	if (($topic_data['post_visibility'] == ITEM_UNAPPROVED || $topic_data['post_visibility'] == ITEM_REAPPROVE) && !$auth->acl_get('m_approve', $topic_data['forum_id']))
	{
		// If post_id was submitted, we try at least to display the topic as a last resort...
		if ($topic_id)
		{
			redirect(append_sid("{$phpbb_root_path}viewtopic.$phpEx", "t=$topic_id" . (($forum_id) ? "&amp;f=$forum_id" : '')));
		}

		trigger_error('NO_TOPIC');
	}
	if ($post_id == $topic_data['topic_first_post_id'] || $post_id == $topic_data['topic_last_post_id'])
	{
		$check_sort = ($post_id == $topic_data['topic_first_post_id']) ? 'd' : 'a';

		if ($sort_dir == $check_sort)
		{
			$topic_data['prev_posts'] = $phpbb_content_visibility->get_count('topic_posts', $topic_data, $forum_id) - 1;
		}
		else
		{
			$topic_data['prev_posts'] = 0;
		}
	}
	else
	{
		$sql = 'SELECT COUNT(p.post_id) AS prev_posts
			FROM ' . POSTS_TABLE . " p
			WHERE p.topic_id = {$topic_data['topic_id']}
				AND " . $phpbb_content_visibility->get_visibility_sql('post', $forum_id, 'p.');

		if ($sort_dir == 'd')
		{
			$sql .= " AND (p.post_time > {$topic_data['post_time']} OR (p.post_time = {$topic_data['post_time']} AND p.post_id >= {$topic_data['post_id']}))";
		}
		else
		{
			$sql .= " AND (p.post_time < {$topic_data['post_time']} OR (p.post_time = {$topic_data['post_time']} AND p.post_id <= {$topic_data['post_id']}))";
		}

		$result = $db->sql_query($sql);
		$row = $db->sql_fetchrow($result);
		$db->sql_freeresult($result);

		$topic_data['prev_posts'] = $row['prev_posts'] - 1;
	}
}

$topic_id = (int) $topic_data['topic_id'];
$topic_replies = $phpbb_content_visibility->get_count('topic_posts', $topic_data, $forum_id) - 1;

// Check sticky/announcement/global  time limit
if (($topic_data['topic_type'] != POST_NORMAL) && $topic_data['topic_time_limit'] && ($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 ($view == 'print' && !$auth->acl_get('f_print', $forum_id))
{
	send_status_line(403, 'Forbidden');
	trigger_error('NO_AUTH_PRINT_TOPIC');
}

$overrides_f_read_check = false;
$overrides_forum_password_check = false;
$topic_tracking_info = isset($topic_tracking_info) ? $topic_tracking_info : null;

/**
* Event to apply extra permissions and to override original phpBB's f_read permission and forum password check
* on viewtopic access
*
* @event core.viewtopic_before_f_read_check
* @var	int		forum_id						The forum id from where the topic belongs
* @var	int		topic_id						The id of the topic the user tries to access
* @var	int		post_id							The id of the post the user tries to start viewing at.
*												It may be 0 for none given.
* @var	array	topic_data						All the information from the topic and forum tables for this topic
* 												It includes posts information if post_id is not 0
* @var	bool	overrides_f_read_check			Set true to remove f_read check afterwards
* @var	bool	overrides_forum_password_check	Set true to remove forum_password check afterwards
* @var	array	topic_tracking_info				Information upon calling get_topic_tracking()
*												Set it to NULL to allow auto-filling later.
*												Set it to an array to override original data.
* @since 3.1.3-RC1
*/
$vars = array(
	'forum_id',
	'topic_id',
	'post_id',
	'topic_data',
	'overrides_f_read_check',
	'overrides_forum_password_check',
	'topic_tracking_info',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_before_f_read_check', compact($vars)));

// Start auth check
if (!$overrides_f_read_check && !$auth->acl_get('f_read', $forum_id))
{
	if ($user->data['user_id'] != ANONYMOUS)
	{
		send_status_line(403, 'Forbidden');
		trigger_error('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 (!$overrides_forum_password_check && $topic_data['forum_password'])
{
	login_forum_box($topic_data);
}

// Redirect to login upon emailed notification links if user is not logged in.
if (isset($_GET['e']) && $user->data['user_id'] == ANONYMOUS)
{
	login_box(build_url('e') . '#unread', $user->lang['LOGIN_NOTIFY_TOPIC']);
}

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

// Get topic tracking info
if (!isset($topic_tracking_info))
{
	$topic_tracking_info = array();

	// 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 if ($config['load_anon_lastread'] || $user->data['is_registered'])
	{
		$topic_tracking_info = get_complete_topic_tracking($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'], 365 => $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' => array('u.username_clean', 'p.post_id'), 't' => array('p.post_time', 'p.post_id'), 's' => array('p.post_subject', 'p.post_id'));
$join_user_sql = array('a' => true, 't' => false, 's' => false);

$s_limit_days = $s_sort_key = $s_sort_dir = $u_sort_param = '';

/**
* Event to add new sorting options
*
* @event core.viewtopic_gen_sort_selects_before
* @var	array	limit_days		Limit results by time
* @var	array	sort_by_text	Language strings for sorting options
* @var	array	sort_by_sql		SQL conditions for sorting options
* @var	array	join_user_sql	SQL joins required for sorting options
* @var	int		sort_days		User selected sort days
* @var	string	sort_key		User selected sort key
* @var	string	sort_dir		User selected sort direction
* @var	string	s_limit_days	Initial value of limit days selectbox
* @var	string	s_sort_key		Initial value of sort key selectbox
* @var	string	s_sort_dir		Initial value of sort direction selectbox
* @var	string	u_sort_param	Initial value of sorting form action
* @since 3.2.8-RC1
*/
$vars = array(
	'limit_days',
	'sort_by_text',
	'sort_by_sql',
	'join_user_sql',
	'sort_days',
	'sort_key',
	'sort_dir',
	's_limit_days',
	's_sort_key',
	's_sort_dir',
	'u_sort_param',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_gen_sort_selects_before', compact($vars)));

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, $default_sort_days, $default_sort_key, $default_sort_dir);

// 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
				AND " . $phpbb_content_visibility->get_visibility_sql('post', $forum_id);
	$result = $db->sql_query($sql);
	$total_posts = (int) $db->sql_fetchfield('num_posts');
	$db->sql_freeresult($result);

	$limit_posts_time = "AND p.post_time >= $min_post_time ";

	if (isset($_POST['sort']))
	{
		$start = 0;
	}
}
else
{
	$total_posts = $topic_replies + 1;
	$limit_posts_time = '';
}

// Was a highlight request part of the URI?
$highlight_match = $highlight = '';
if ($hilit_words)
{
	$highlight_match = phpbb_clean_search_string($hilit_words);
	$highlight = urlencode($highlight_match);
	$highlight_match = str_replace('\*', '\w+?', preg_quote($highlight_match, '#'));
	$highlight_match = preg_replace('#(?<=^|\s)\\\\w\*\?(?=\s|$)#', '\w+?', $highlight_match);
	$highlight_match = str_replace(' ', '|', $highlight_match);
}

// Make sure $start is set to the last page if it exceeds the amount
$start = $pagination->validate_start($start, $config['posts_per_page'], $total_posts);

// General Viewtopic URL for return links
$viewtopic_url = append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$forum_id&amp;t=$topic_id" . (($start == 0) ? '' : "&amp;start=$start") . ((strlen($u_sort_param)) ? "&amp;$u_sort_param" : '') . (($highlight_match) ? "&amp;hilit=$highlight" : ''));

// Are we watching this topic?
$s_watching_topic = array(
	'link'			=> '',
	'link_toggle'	=> '',
	'title'			=> '',
	'title_toggle'	=> '',
	'is_watching'	=> false,
);

if ($config['allow_topic_notify'])
{
	$notify_status = (isset($topic_data['notify_status'])) ? $topic_data['notify_status'] : null;
	watch_topic_forum('topic', $s_watching_topic, $user->data['user_id'], $forum_id, $topic_id, $notify_status, $start, $topic_data['topic_title']);

	// Reset forum notification if forum notify is set
	if ($config['allow_forum_notify'] && $auth->acl_get('f_subscribe', $forum_id))
	{
		$s_watching_forum = $s_watching_topic;
		watch_topic_forum('forum', $s_watching_forum, $user->data['user_id'], $forum_id, 0);
	}
}

/**
* Event to modify highlight.
*
* @event core.viewtopic_highlight_modify
* @var	string	highlight			String to be highlighted
* @var	string	highlight_match		Highlight string to be used in preg_replace
* @var	array	topic_data			Topic data
* @var	int		start				Pagination start
* @var	int		total_posts			Number of posts
* @var	string	viewtopic_url		Current viewtopic URL
* @since 3.1.11-RC1
*/
$vars = array(
	'highlight',
	'highlight_match',
	'topic_data',
	'start',
	'total_posts',
	'viewtopic_url',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_highlight_modify', compact($vars)));

// Bookmarks
if ($config['allow_bookmarks'] && $user->data['is_registered'] && $request->variable('bookmark', 0))
{
	if (check_link_hash($request->variable('hash', ''), "topic_$topic_id"))
	{
		if (!$topic_data['bookmarked'])
		{
			$sql = 'INSERT INTO ' . BOOKMARKS_TABLE . ' ' . $db->sql_build_array('INSERT', array(
				'user_id'	=> $user->data['user_id'],
				'topic_id'	=> $topic_id,
			));
			$db->sql_query($sql);
		}
		else
		{
			$sql = 'DELETE FROM ' . BOOKMARKS_TABLE . "
				WHERE user_id = {$user->data['user_id']}
					AND topic_id = $topic_id";
			$db->sql_query($sql);
		}
		$message = (($topic_data['bookmarked']) ? $user->lang['BOOKMARK_REMOVED'] : $user->lang['BOOKMARK_ADDED']);

		if (!$request->is_ajax())
		{
			$message .= '<br /><br />' . $user->lang('RETURN_TOPIC', '<a href="' . $viewtopic_url . '">', '</a>');
		}
	}
	else
	{
		$message = $user->lang['BOOKMARK_ERR'];

		if (!$request->is_ajax())
		{
			$message .= '<br /><br />' . $user->lang('RETURN_TOPIC', '<a href="' . $viewtopic_url . '">', '</a>');
		}
	}
	meta_refresh(3, $viewtopic_url);

	trigger_error($message);
}

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

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

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

// Forum rules listing
$s_forum_rules = '';
gen_forum_auth_level('topic', $forum_id, $topic_data['forum_status']);

// Quick mod tools
$allow_change_type = ($auth->acl_get('m_', $forum_id) || ($user->data['is_registered'] && $user->data['user_id'] == $topic_data['topic_poster'])) ? true : false;

$s_quickmod_action = append_sid(
	"{$phpbb_root_path}mcp.$phpEx",
	array(
		'f'	=> $forum_id,
		't'	=> $topic_id,
		'start'		=> $start,
		'quickmod'	=> 1,
		'redirect'	=> urlencode(str_replace('&amp;', '&', $viewtopic_url)),
	),
	true,
	$user->session_id
);

$quickmod_array = array(
//	'key'			=> array('LANG_KEY', $userHasPermissions),

	'lock'					=> array('LOCK_TOPIC', ($topic_data['topic_status'] == ITEM_UNLOCKED) && ($auth->acl_get('m_lock', $forum_id) || ($auth->acl_get('f_user_lock', $forum_id) && $user->data['is_registered'] && $user->data['user_id'] == $topic_data['topic_poster']))),
	'unlock'				=> array('UNLOCK_TOPIC', ($topic_data['topic_status'] != ITEM_UNLOCKED) && ($auth->acl_get('m_lock', $forum_id))),
	'delete_topic'		=> array('DELETE_TOPIC', ($auth->acl_get('m_delete', $forum_id) || (($topic_data['topic_visibility'] != ITEM_DELETED) && $auth->acl_get('m_softdelete', $forum_id)))),
	'restore_topic'		=> array('RESTORE_TOPIC', (($topic_data['topic_visibility'] == ITEM_DELETED) && $auth->acl_get('m_approve', $forum_id))),
	'move'					=> array('MOVE_TOPIC', $auth->acl_get('m_move', $forum_id) && $topic_data['topic_status'] != ITEM_MOVED),
	'split'					=> array('SPLIT_TOPIC', $auth->acl_get('m_split', $forum_id)),
	'merge'					=> array('MERGE_POSTS', $auth->acl_get('m_merge', $forum_id)),
	'merge_topic'		=> array('MERGE_TOPIC', $auth->acl_get('m_merge', $forum_id)),
	'fork'					=> array('FORK_TOPIC', $auth->acl_get('m_move', $forum_id)),
	'make_normal'		=> array('MAKE_NORMAL', ($allow_change_type && $auth->acl_gets('f_sticky', 'f_announce', 'f_announce_global', $forum_id) && $topic_data['topic_type'] != POST_NORMAL)),
	'make_sticky'		=> array('MAKE_STICKY', ($allow_change_type && $auth->acl_get('f_sticky', $forum_id) && $topic_data['topic_type'] != POST_STICKY)),
	'make_announce'	=> array('MAKE_ANNOUNCE', ($allow_change_type && $auth->acl_get('f_announce', $forum_id) && $topic_data['topic_type'] != POST_ANNOUNCE)),
	'make_global'		=> array('MAKE_GLOBAL', ($allow_change_type && $auth->acl_get('f_announce_global', $forum_id) && $topic_data['topic_type'] != POST_GLOBAL)),
	'topic_logs'			=> array('VIEW_TOPIC_LOGS', $auth->acl_get('m_', $forum_id)),
);

/**
* Event to modify data in the quickmod_array before it gets sent to the
* phpbb_add_quickmod_option function.
*
* @event core.viewtopic_add_quickmod_option_before
* @var	int				forum_id				Forum ID
* @var	int				post_id					Post ID
* @var	array			quickmod_array			Array with quick moderation options data
* @var	array			topic_data				Array with topic data
* @var	int				topic_id				Topic ID
* @var	array			topic_tracking_info		Array with topic tracking data
* @var	string			viewtopic_url			URL to the topic page
* @var	bool			allow_change_type		Topic change permissions check
* @since 3.1.9-RC1
*/
$vars = array(
	'forum_id',
	'post_id',
	'quickmod_array',
	'topic_data',
	'topic_id',
	'topic_tracking_info',
	'viewtopic_url',
	'allow_change_type',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_add_quickmod_option_before', compact($vars)));

foreach ($quickmod_array as $option => $qm_ary)
{
	if (!empty($qm_ary[1]))
	{
		phpbb_add_quickmod_option($s_quickmod_action, $option, $qm_ary[0]);
	}
}

// Navigation links
generate_forum_nav($topic_data);

// Forum Rules
generate_forum_rules($topic_data);

// Moderators
$forum_moderators = array();
if ($config['load_moderators'])
{
	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']);

$s_search_hidden_fields = array(
	't' => $topic_id,
	'sf' => 'msgonly',
);
if ($_SID)
{
	$s_search_hidden_fields['sid'] = $_SID;
}

if (!empty($_EXTRA_URL))
{
	foreach ($_EXTRA_URL as $url_param)
	{
		$url_param = explode('=', $url_param, 2);
		$s_search_hidden_fields[$url_param[0]] = $url_param[1];
	}
}

// If we've got a hightlight set pass it on to pagination.
$base_url = append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$forum_id&amp;t=$topic_id" . ((strlen($u_sort_param)) ? "&amp;$u_sort_param" : '') . (($highlight_match) ? "&amp;hilit=$highlight" : ''));

/**
* Event to modify data before template variables are being assigned
*
* @event core.viewtopic_assign_template_vars_before
* @var	string	base_url			URL to be passed to generate pagination
* @var	int		forum_id			Forum ID
* @var	int		post_id				Post ID
* @var	array	quickmod_array		Array with quick moderation options data
* @var	int		start				Pagination information
* @var	array	topic_data			Array with topic data
* @var	int		topic_id			Topic ID
* @var	array	topic_tracking_info	Array with topic tracking data
* @var	int		total_posts			Topic total posts count
* @var	string	viewtopic_url		URL to the topic page
* @since 3.1.0-RC4
* @changed 3.1.2-RC1 Added viewtopic_url
*/
$vars = array(
	'base_url',
	'forum_id',
	'post_id',
	'quickmod_array',
	'start',
	'topic_data',
	'topic_id',
	'topic_tracking_info',
	'total_posts',
	'viewtopic_url',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_assign_template_vars_before', compact($vars)));

$pagination->generate_template_pagination($base_url, 'pagination', 'start', $total_posts, $config['posts_per_page'], $start);

// Send vars to template
$template->assign_vars(array(
	'FORUM_ID' 		=> $forum_id,
	'FORUM_NAME' 	=> $topic_data['forum_name'],
	'FORUM_DESC'	=> generate_text_for_display($topic_data['forum_desc'], $topic_data['forum_desc_uid'], $topic_data['forum_desc_bitfield'], $topic_data['forum_desc_options']),
	'TOPIC_ID' 		=> $topic_id,
	'TOPIC_TITLE' 	=> $topic_data['topic_title'],
	'TOPIC_POSTER'	=> $topic_data['topic_poster'],

	'TOPIC_AUTHOR_FULL'		=> get_username_string('full', $topic_data['topic_poster'], $topic_data['topic_first_poster_name'], $topic_data['topic_first_poster_colour']),
	'TOPIC_AUTHOR_COLOUR'	=> get_username_string('colour', $topic_data['topic_poster'], $topic_data['topic_first_poster_name'], $topic_data['topic_first_poster_colour']),
	'TOPIC_AUTHOR'			=> get_username_string('username', $topic_data['topic_poster'], $topic_data['topic_first_poster_name'], $topic_data['topic_first_poster_colour']),

	'TOTAL_POSTS'	=> $user->lang('VIEW_TOPIC_POSTS', (int) $total_posts),
	'U_MCP' 		=> ($auth->acl_get('m_', $forum_id)) ? append_sid("{$phpbb_root_path}mcp.$phpEx", "i=main&amp;mode=topic_view&amp;f=$forum_id&amp;t=$topic_id" . (($start == 0) ? '' : "&amp;start=$start") . ((strlen($u_sort_param)) ? "&amp;$u_sort_param" : ''), true, $user->session_id) : '',
	'MODERATORS'	=> (isset($forum_moderators[$forum_id]) && count($forum_moderators[$forum_id])) ? implode($user->lang['COMMA_SEPARATOR'], $forum_moderators[$forum_id]) : '',

	'POST_IMG' 			=> ($topic_data['forum_status'] == ITEM_LOCKED) ? $user->img('button_topic_locked', 'FORUM_LOCKED') : $user->img('button_topic_new', 'POST_NEW_TOPIC'),
	'QUOTE_IMG' 		=> $user->img('icon_post_quote', 'REPLY_WITH_QUOTE'),
	'REPLY_IMG'			=> ($topic_data['forum_status'] == ITEM_LOCKED || $topic_data['topic_status'] == ITEM_LOCKED) ? $user->img('button_topic_locked', 'TOPIC_LOCKED') : $user->img('button_topic_reply', 'REPLY_TO_TOPIC'),
	'EDIT_IMG' 			=> $user->img('icon_post_edit', 'EDIT_POST'),
	'DELETE_IMG' 		=> $user->img('icon_post_delete', 'DELETE_POST'),
	'DELETED_IMG'		=> $user->img('icon_topic_deleted', 'POST_DELETED_RESTORE'),
	'INFO_IMG' 			=> $user->img('icon_post_info', 'VIEW_INFO'),
	'PROFILE_IMG'		=> $user->img('icon_user_profile', 'READ_PROFILE'),
	'SEARCH_IMG' 		=> $user->img('icon_user_search', 'SEARCH_USER_POSTS'),
	'PM_IMG' 			=> $user->img('icon_contact_pm', 'SEND_PRIVATE_MESSAGE'),
	'EMAIL_IMG' 		=> $user->img('icon_contact_email', 'SEND_EMAIL'),
	'JABBER_IMG'		=> $user->img('icon_contact_jabber', 'JABBER') ,
	'REPORT_IMG'		=> $user->img('icon_post_report', 'REPORT_POST'),
	'REPORTED_IMG'		=> $user->img('icon_topic_reported', 'POST_REPORTED'),
	'UNAPPROVED_IMG'	=> $user->img('icon_topic_unapproved', 'POST_UNAPPROVED'),
	'WARN_IMG'			=> $user->img('icon_user_warn', 'WARN_USER'),

	'S_IS_LOCKED'			=> ($topic_data['topic_status'] == ITEM_UNLOCKED && $topic_data['forum_status'] == ITEM_UNLOCKED) ? false : true,
	'S_SELECT_SORT_DIR' 	=> $s_sort_dir,
	'S_SELECT_SORT_KEY' 	=> $s_sort_key,
	'S_SELECT_SORT_DAYS' 	=> $s_limit_days,
	'S_SINGLE_MODERATOR'	=> (!empty($forum_moderators[$forum_id]) && count($forum_moderators[$forum_id]) > 1) ? false : true,
	'S_TOPIC_ACTION' 		=> append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$forum_id&amp;t=$topic_id" . (($start == 0) ? '' : "&amp;start=$start")),
	'S_MOD_ACTION' 			=> $s_quickmod_action,

	'L_RETURN_TO_FORUM'		=> $user->lang('RETURN_TO', $topic_data['forum_name']),
	'S_VIEWTOPIC'			=> true,
	'S_UNREAD_VIEW'			=> $view == 'unread',
	'S_DISPLAY_SEARCHBOX'	=> ($auth->acl_get('u_search') && $auth->acl_get('f_search', $forum_id) && $config['load_search']) ? true : false,
	'S_SEARCHBOX_ACTION'	=> append_sid("{$phpbb_root_path}search.$phpEx"),
	'S_SEARCH_LOCAL_HIDDEN_FIELDS'	=> build_hidden_fields($s_search_hidden_fields),

	'S_DISPLAY_POST_INFO'	=> ($topic_data['forum_type'] == FORUM_POST && ($auth->acl_get('f_post', $forum_id) || $user->data['user_id'] == ANONYMOUS)) ? true : false,
	'S_DISPLAY_REPLY_INFO'	=> ($topic_data['forum_type'] == FORUM_POST && ($auth->acl_get('f_reply', $forum_id) || $user->data['user_id'] == ANONYMOUS)) ? true : false,
	'S_ENABLE_FEEDS_TOPIC'	=> ($config['feed_topic'] && !phpbb_optionget(FORUM_OPTION_FEED_EXCLUDE, $topic_data['forum_options'])) ? true : false,

	'U_TOPIC'				=> "{$server_path}viewtopic.$phpEx?f=$forum_id&amp;t=$topic_id",
	'U_FORUM'				=> $server_path,
	'U_VIEW_TOPIC' 			=> append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$forum_id&amp;t=$topic_id" . (($start == 0) ? '' : "&amp;start=$start") . (strlen($u_sort_param) ? "&amp;$u_sort_param" : '')),
	'U_CANONICAL'			=> generate_board_url() . '/' . append_sid("viewtopic.$phpEx", "t=$topic_id" . (($start) ? "&amp;start=$start" : ''), true, ''),
	'U_VIEW_FORUM' 			=> append_sid("{$phpbb_root_path}viewforum.$phpEx", 'f=' . $forum_id),
	'U_VIEW_OLDER_TOPIC'	=> append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$forum_id&amp;t=$topic_id&amp;view=previous"),
	'U_VIEW_NEWER_TOPIC'	=> append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$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) && $config['email_enable']) ? append_sid("{$phpbb_root_path}memberlist.$phpEx", "mode=email&amp;t=$topic_id") : '',

	'U_WATCH_TOPIC'			=> $s_watching_topic['link'],
	'U_WATCH_TOPIC_TOGGLE'	=> $s_watching_topic['link_toggle'],
	'S_WATCH_TOPIC_TITLE'	=> $s_watching_topic['title'],
	'S_WATCH_TOPIC_TOGGLE'	=> $s_watching_topic['title_toggle'],
	'S_WATCHING_TOPIC'		=> $s_watching_topic['is_watching'],

	'U_BOOKMARK_TOPIC'		=> ($user->data['is_registered'] && $config['allow_bookmarks']) ? $viewtopic_url . '&amp;bookmark=1&amp;hash=' . generate_link_hash("topic_$topic_id") : '',
	'S_BOOKMARK_TOPIC'		=> ($user->data['is_registered'] && $config['allow_bookmarks'] && $topic_data['bookmarked']) ? $user->lang['BOOKMARK_TOPIC_REMOVE'] : $user->lang['BOOKMARK_TOPIC'],
	'S_BOOKMARK_TOGGLE'		=> (!$user->data['is_registered'] || !$config['allow_bookmarks'] || !$topic_data['bookmarked']) ? $user->lang['BOOKMARK_TOPIC_REMOVE'] : $user->lang['BOOKMARK_TOPIC'],
	'S_BOOKMARKED_TOPIC'	=> ($user->data['is_registered'] && $config['allow_bookmarks'] && $topic_data['bookmarked']) ? true : false,

	'U_POST_NEW_TOPIC' 		=> ($auth->acl_get('f_post', $forum_id) || $user->data['user_id'] == ANONYMOUS) ? append_sid("{$phpbb_root_path}posting.$phpEx", "mode=post&amp;f=$forum_id") : '',
	'U_POST_REPLY_TOPIC' 	=> ($auth->acl_get('f_reply', $forum_id) || $user->data['user_id'] == ANONYMOUS) ? append_sid("{$phpbb_root_path}posting.$phpEx", "mode=reply&amp;f=$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'], $topic_data['topic_last_poster_id'])) ? append_sid("{$phpbb_root_path}posting.$phpEx", "mode=bump&amp;f=$forum_id&amp;t=$topic_id&amp;hash=" . generate_link_hash("topic_$topic_id")) : '')
);

// Does this topic contain a poll?
if (!empty($topic_data['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 = $vote_counts = array();
	while ($row = $db->sql_fetchrow($result))
	{
		$poll_info[] = $row;
		$option_id = (int) $row['poll_option_id'];
		$vote_counts[$option_id] = (int) $row['poll_option_total'];
	}
	$db->sql_freeresult($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 ($request->is_set($config['cookie_name'] . '_poll_' . $topic_id, \phpbb\request\request_interface::COOKIE))
		{
			$cur_voted_id = explode(',', $request->variable($config['cookie_name'] . '_poll_' . $topic_id, '', true, \phpbb\request\request_interface::COOKIE));
			$cur_voted_id = array_map('intval', $cur_voted_id);
		}
	}

	// Can not vote at all if no vote permission
	$s_can_vote = ($auth->acl_get('f_vote', $forum_id) &&
		(($topic_data['poll_length'] != 0 && $topic_data['poll_start'] + $topic_data['poll_length'] > time()) || $topic_data['poll_length'] == 0) &&
		$topic_data['topic_status'] != ITEM_LOCKED &&
		$topic_data['forum_status'] != ITEM_LOCKED &&
		(!count($cur_voted_id) ||
		($auth->acl_get('f_votechg', $forum_id) && $topic_data['poll_vote_change']))) ? true : false;
	$s_display_results = (!$s_can_vote || ($s_can_vote && count($cur_voted_id)) || $view == 'viewpoll') ? true : false;

	/**
	* Event to manipulate the poll data
	*
	* @event core.viewtopic_modify_poll_data
	* @var	array	cur_voted_id				Array with options' IDs current user has voted for
	* @var	int		forum_id					The topic's forum id
	* @var	array	poll_info					Array with the poll information
	* @var	bool	s_can_vote					Flag indicating if a user can vote
	* @var	bool	s_display_results			Flag indicating if results or poll options should be displayed
	* @var	int		topic_id					The id of the topic the user tries to access
	* @var	array	topic_data					All the information from the topic and forum tables for this topic
	* @var	string	viewtopic_url				URL to the topic page
	* @var	array	vote_counts					Array with the vote counts for every poll option
	* @var	array	voted_id					Array with updated options' IDs current user is voting for
	* @since 3.1.5-RC1
	*/
	$vars = array(
		'cur_voted_id',
		'forum_id',
		'poll_info',
		's_can_vote',
		's_display_results',
		'topic_id',
		'topic_data',
		'viewtopic_url',
		'vote_counts',
		'voted_id',
	);
	extract($phpbb_dispatcher->trigger_event('core.viewtopic_modify_poll_data', compact($vars)));

	if ($update && $s_can_vote)
	{

		if (!count($voted_id) || count($voted_id) > $topic_data['poll_max_options'] || in_array(VOTE_CONVERTED, $cur_voted_id) || !check_form_key('posting'))
		{
			$redirect_url = append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$forum_id&amp;t=$topic_id" . (($start == 0) ? '' : "&amp;start=$start"));

			meta_refresh(5, $redirect_url);
			if (!count($voted_id))
			{
				$message = 'NO_VOTE_OPTION';
			}
			else if (count($voted_id) > $topic_data['poll_max_options'])
			{
				$message = 'TOO_MANY_VOTE_OPTIONS';
			}
			else if (in_array(VOTE_CONVERTED, $cur_voted_id))
			{
				$message = 'VOTE_CONVERTED';
			}
			else
			{
				$message = 'FORM_INVALID';
			}

			$message = $user->lang[$message] . '<br /><br />' . sprintf($user->lang['RETURN_TOPIC'], '<a href="' . $redirect_url . '">', '</a>');
			trigger_error($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 = ' . (int) $option . '
					AND topic_id = ' . (int) $topic_id;
			$db->sql_query($sql);

			$vote_counts[$option]++;

			if ($user->data['is_registered'])
			{
				$sql_ary = array(
					'topic_id'			=> (int) $topic_id,
					'poll_option_id'	=> (int) $option,
					'vote_user_id'		=> (int) $user->data['user_id'],
					'vote_user_ip'		=> (string) $user->ip,
				);

				$sql = 'INSERT INTO ' . POLL_VOTES_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary);
				$db->sql_query($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 = ' . (int) $option . '
						AND topic_id = ' . (int) $topic_id;
				$db->sql_query($sql);

				$vote_counts[$option]--;

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

		$redirect_url = append_sid("{$phpbb_root_path}viewtopic.$phpEx", "f=$forum_id&amp;t=$topic_id" . (($start == 0) ? '' : "&amp;start=$start"));
		$message = $user->lang['VOTE_SUBMITTED'] . '<br /><br />' . sprintf($user->lang['RETURN_TOPIC'], '<a href="' . $redirect_url . '">', '</a>');

		if ($request->is_ajax())
		{
			// Filter out invalid options
			$valid_user_votes = array_intersect(array_keys($vote_counts), $voted_id);

			$data = array(
				'NO_VOTES'			=> $user->lang['NO_VOTES'],
				'success'			=> true,
				'user_votes'		=> array_flip($valid_user_votes),
				'vote_counts'		=> $vote_counts,
				'total_votes'		=> array_sum($vote_counts),
				'can_vote'			=> !count($valid_user_votes) || ($auth->acl_get('f_votechg', $forum_id) && $topic_data['poll_vote_change']),
			);

			/**
			* Event to manipulate the poll data sent by AJAX response
			*
			* @event core.viewtopic_modify_poll_ajax_data
			* @var	array	data				JSON response data
			* @var	array	valid_user_votes	Valid user votes
			* @var	array	vote_counts			Vote counts
			* @var	int		forum_id			Forum ID
			* @var	array	topic_data			Topic data
			* @var	array	poll_info			Array with the poll information
			* @since 3.2.4-RC1
			*/
			$vars = array(
				'data',
				'valid_user_votes',
				'vote_counts',
				'forum_id',
				'topic_data',
				'poll_info',
			);
			extract($phpbb_dispatcher->trigger_event('core.viewtopic_modify_poll_ajax_data', compact($vars)));

			$json_response = new \phpbb\json_response();
			$json_response->send($data);
		}

		meta_refresh(5, $redirect_url);
		trigger_error($message);
	}

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

	$parse_flags = ($poll_info[0]['bbcode_bitfield'] ? OPTION_FLAG_BBCODE : 0) | OPTION_FLAG_SMILIES;

	for ($i = 0, $size = count($poll_info); $i < $size; $i++)
	{
		$poll_info[$i]['poll_option_text'] = generate_text_for_display($poll_info[$i]['poll_option_text'], $poll_info[$i]['bbcode_uid'], $poll_option['bbcode_bitfield'], $parse_flags, true);
	}

	$topic_data['poll_title'] = generate_text_for_display($topic_data['poll_title'], $poll_info[0]['bbcode_uid'], $poll_info[0]['bbcode_bitfield'], $parse_flags, true);

	$poll_template_data = $poll_options_template_data = array();
	foreach ($poll_info as $poll_option)
	{
		$option_pct = ($poll_total > 0) ? $poll_option['poll_option_total'] / $poll_total : 0;
		$option_pct_txt = sprintf("%.1d%%", round($option_pct * 100));
		$option_pct_rel = ($poll_most > 0) ? $poll_option['poll_option_total'] / $poll_most : 0;
		$option_pct_rel_txt = sprintf("%.1d%%", round($option_pct_rel * 100));
		$option_most_votes = ($poll_option['poll_option_total'] > 0 && $poll_option['poll_option_total'] == $poll_most) ? true : false;

		$poll_options_template_data[] = 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_PERCENT_REL' 	=> $option_pct_rel_txt,
			'POLL_OPTION_PCT'			=> round($option_pct * 100),
			'POLL_OPTION_WIDTH'     	=> round($option_pct * 250),
			'POLL_OPTION_VOTED'			=> (in_array($poll_option['poll_option_id'], $cur_voted_id)) ? true : false,
			'POLL_OPTION_MOST_VOTES'	=> $option_most_votes,
		);
	}

	$poll_end = $topic_data['poll_length'] + $topic_data['poll_start'];

	$poll_template_data = array(
		'POLL_QUESTION'		=> $topic_data['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'		=> $user->lang('MAX_OPTIONS_SELECT', (int) $topic_data['poll_max_options']),
		'L_POLL_LENGTH'		=> ($topic_data['poll_length']) ? sprintf($user->lang[($poll_end > time()) ? 'POLL_RUN_TILL' : 'POLL_ENDED_AT'], $user->format_date($poll_end)) : '',

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

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

	/**
	* Event to add/modify poll template data
	*
	* @event core.viewtopic_modify_poll_template_data
	* @var	array	cur_voted_id					Array with options' IDs current user has voted for
	* @var	int		poll_end						The poll end time
	* @var	array	poll_info						Array with the poll information
	* @var	array	poll_options_template_data		Array with the poll options template data
	* @var	array	poll_template_data				Array with the common poll template data
	* @var	int		poll_total						Total poll votes count
	* @var	int		poll_most						Mostly voted option votes count
	* @var	array	topic_data						All the information from the topic and forum tables for this topic
	* @var	string	viewtopic_url					URL to the topic page
	* @var	array	vote_counts						Array with the vote counts for every poll option
	* @var	array	voted_id						Array with updated options' IDs current user is voting for
	* @since 3.1.5-RC1
	*/
	$vars = array(
		'cur_voted_id',
		'poll_end',
		'poll_info',
		'poll_options_template_data',
		'poll_template_data',
		'poll_total',
		'poll_most',
		'topic_data',
		'viewtopic_url',
		'vote_counts',
		'voted_id',
	);
	extract($phpbb_dispatcher->trigger_event('core.viewtopic_modify_poll_template_data', compact($vars)));

	$template->assign_block_vars_array('poll_option', $poll_options_template_data);

	$template->assign_vars($poll_template_data);

	unset($poll_end, $poll_info, $poll_options_template_data, $poll_template_data, $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'];
$sql_sort_order = $direction = '';

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

	// Select the sort order
	$direction = (($sort_dir == 'd') ? 'ASC' : 'DESC');

	$sql_limit = $pagination->reverse_limit($start, $sql_limit, $total_posts);
	$sql_start = $pagination->reverse_start($start, $sql_limit, $total_posts);
}
else
{
	// Select the sort order
	$direction = (($sort_dir == 'd') ? 'DESC' : 'ASC');
	$sql_start = $start;
}

if (is_array($sort_by_sql[$sort_key]))
{
	$sql_sort_order = implode(' ' . $direction . ', ', $sort_by_sql[$sort_key]) . ' ' . $direction;
}
else
{
	$sql_sort_order = $sort_by_sql[$sort_key] . ' ' . $direction;
}

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

// Go ahead and pull all data for this topic
$sql = 'SELECT p.post_id
	FROM ' . POSTS_TABLE . ' p' . (($join_user_sql[$sort_key]) ? ', ' . USERS_TABLE . ' u': '') . "
	WHERE p.topic_id = $topic_id
		AND " . $phpbb_content_visibility->get_visibility_sql('post', $forum_id, 'p.') . "
		" . (($join_user_sql[$sort_key]) ? 'AND u.user_id = p.poster_id': '') . "
		$limit_posts_time
	ORDER BY $sql_sort_order";

/**
* Event to modify the SQL query that gets post_list
*
* @event core.viewtopic_modify_post_list_sql
* @var	string	sql			The SQL query to generate the post_list
* @var	int		sql_limit	The number of posts the query fetches
* @var	int		sql_start	The index the query starts to fetch from
* @var	string	sort_key	Key the posts are sorted by
* @var	string	sort_days	Display posts of previous x days
* @var	int		forum_id	Forum ID
* @since 3.2.4-RC1
*/
$vars = array(
	'sql',
	'sql_limit',
	'sql_start',
	'sort_key',
	'sort_days',
	'forum_id',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_modify_post_list_sql', compact($vars)));

$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] = (int) $row['post_id'];
	($store_reverse) ? $i-- : $i++;
}
$db->sql_freeresult($result);

if (!count($post_list))
{
	if ($sort_days)
	{
		trigger_error('NO_POSTS_TIME_FRAME');
	}
	else
	{
		trigger_error('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_ary = array(
	'SELECT'	=> 'u.*, z.friend, z.foe, p.*',

	'FROM'		=> array(
		USERS_TABLE		=> 'u',
		POSTS_TABLE		=> 'p',
	),

	'LEFT_JOIN'	=> array(
		array(
			'FROM'	=> array(ZEBRA_TABLE => 'z'),
			'ON'	=> 'z.user_id = ' . $user->data['user_id'] . ' AND z.zebra_id = p.poster_id',
		),
	),

	'WHERE'		=> $db->sql_in_set('p.post_id', $post_list) . '
		AND u.user_id = p.poster_id',
);

/**
* Event to modify the SQL query before the post and poster data is retrieved
*
* @event core.viewtopic_get_post_data
* @var	int		forum_id	Forum ID
* @var	int		topic_id	Topic ID
* @var	array	topic_data	Array with topic data
* @var	array	post_list	Array with post_ids we are going to retrieve
* @var	int		sort_days	Display posts of previous x days
* @var	string	sort_key	Key the posts are sorted by
* @var	string	sort_dir	Direction the posts are sorted by
* @var	int		start		Pagination information
* @var	array	sql_ary		The SQL array to get the data of posts and posters
* @since 3.1.0-a1
* @changed 3.1.0-a2 Added vars forum_id, topic_id, topic_data, post_list, sort_days, sort_key, sort_dir, start
*/
$vars = array(
	'forum_id',
	'topic_id',
	'topic_data',
	'post_list',
	'sort_days',
	'sort_key',
	'sort_dir',
	'start',
	'sql_ary',
);
extract($phpbb_dispatcher->trigger_event('core.viewtopic_get_post_data', compact($vars)));

$sql = $db->sql_build_query('SELECT', $sql_ary);
$result = $db->sql_query($sql);

$now = $user->create_datetime();
$now = phpbb_gmgetdate($now->getTimestamp() + $now->getOffset());

// 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 = (int) $row['poster_id'];

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

		if ($row['post_visibility'] == ITEM_UNAPPROVED || $row['post_visibility'] == ITEM_REAPPROVE)
		{
			$has_unapproved_attachments = true;
		}
		else if ($row['post_visibility'] == ITEM_APPROVED)
		{
			$has_approved_attachments = true;
		}
	}

	$rowset_data = array(
		'hide_post'			=> (($row['foe'] || $row['post_visibility'] == ITEM_DELETED) && ($view != 'show' || $post_id != $row['post_id'])) ? true : false,

		'post_id'			=> $row['post_id'],
		'post_time'			=> $row['post_time'],
		'user_id'			=> $row['user_id'],
		'username'			=> $row['username'],
		'user_colour'		=> $row['user_colour'],
		'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'],
		'post_edit_locked'	=> $row['post_edit_locked'],
		'post_delete_time'	=> $row['post_delete_time'],
		'post_delete_reason'=> $row['post_delete_reason'],
		'post_delete_user'	=> $row['post_delete_user'],

		// Make sure the icon actually exists
		'icon_id'			=> (isset($icons[$ro…