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<?php

/***************************************************************************

 *                               viewtopic.php

 *                            -------------------

 *   begin                : Saturday, Feb 13, 2001

 *   copyright            : (C) 2001 The phpBB Group

 *   email                : support@phpbb.com

 *

 *   $Id$

 *

 *

 ***************************************************************************/

/***************************************************************************

 *

 *   This program is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation; either version 2 of the License, or

 *   (at your option) any later version.

 *

 ***************************************************************************/

define('IN_PHPBB', true);

$phpbb_root_path = './';

include($phpbb_root_path . 'extension.inc');

include($phpbb_root_path . 'common.'.$phpEx);

include($phpbb_root_path . 'includes/bbcode.'.$phpEx);

//

// Start initial var setup

//

if ( isset($HTTP_GET_VARS[POST_TOPIC_URL]) )

{

        $topic_id = intval($HTTP_GET_VARS[POST_TOPIC_URL]);

}

else if ( isset($HTTP_GET_VARS['topic']) )

{

        $topic_id = intval($HTTP_GET_VARS['topic']);

}

if ( isset($HTTP_GET_VARS[POST_POST_URL]))

{

        $post_id = intval($HTTP_GET_VARS[POST_POST_URL]);

}

$start = ( isset($HTTP_GET_VARS['start']) ) ? intval($HTTP_GET_VARS['start']) : 0;

if ( !isset($topic_id) && !isset($post_id) )

{

        message_die(GENERAL_MESSAGE, 'Topic_post_not_exist');

}

//

// Find topic id if user requested a newer

// or older topic

//

if ( isset($HTTP_GET_VARS['view']) && empty($HTTP_GET_VARS[POST_POST_URL]) )

{

        if ( $HTTP_GET_VARS['view'] == 'newest' )

        {

                $header_location = ( @preg_match('/Microsoft|WebSTAR|Xitami/', getenv('SERVER_SOFTWARE')) ) ? 'Refresh: 0; URL=' : 'Location: ';

                if ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_sid']) )

                {

                        $session_id = $HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_sid'];

                        if ( $session_id )

                        {

                                $sql = "SELECT p.post_id

                                        FROM " . POSTS_TABLE . " p, " . SESSIONS_TABLE . " s,  " . USERS_TABLE . " u

                                        WHERE s.session_id = '$session_id'

                                                AND u.user_id = s.session_user_id

                                                AND p.topic_id = $topic_id

                                                AND p.post_time >= u.user_lastvisit

                                        ORDER BY p.post_time ASC

                                        LIMIT 1";

                                if ( !($result = $db->sql_query($sql)) )

                                {

                                        message_die(GENERAL_ERROR, 'Could not obtain newer/older topic information', '', __LINE__, __FILE__, $sql);

                                }

                                if ( !($row = $db->sql_fetchrow($result)) )

                                {

                                        message_die(GENERAL_MESSAGE, 'No_new_posts_last_visit');

                                }

                                $post_id = $row['post_id'];

                                header($header_location . append_sid("viewtopic.$phpEx?" . POST_POST_URL . "=$post_id#$post_id", true));

                                exit;

                        }

                }

                header($header_location . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id", true));

                exit;

        }

        else if ( $HTTP_GET_VARS['view'] == 'next' || $HTTP_GET_VARS['view'] == 'previous' )

        {

                $sql_condition = ( $HTTP_GET_VARS['view'] == 'next' ) ? '>' : '<';

                $sql_ordering = ( $HTTP_GET_VARS['view'] == 'next' ) ? 'ASC' : 'DESC';

                $sql = "SELECT t.topic_id

                        FROM " . TOPICS_TABLE . " t, " . TOPICS_TABLE . " t2, " . POSTS_TABLE . " p, " . POSTS_TABLE . " p2

                        WHERE t2.topic_id = $topic_id

                                AND p2.post_id = t2.topic_last_post_id

                                AND t.forum_id = t2.forum_id

                                AND p.post_id = t.topic_last_post_id

                                AND p.post_time $sql_condition p2.post_time

                                AND p.topic_id = t.topic_id

                        ORDER BY p.post_time $sql_ordering

                        LIMIT 1";

                if ( !($result = $db->sql_query($sql)) )

                {

                        message_die(GENERAL_ERROR, "Could not obtain newer/older topic information", '', __LINE__, __FILE__, $sql);

                }

                if ( $row = $db->sql_fetchrow($result) )

                {

                        $topic_id = $row['topic_id'];

                }

                else

                {

                        $message = ( $HTTP_GET_VARS['view'] == 'next' ) ? 'No_newer_topics' : 'No_older_topics';

                        message_die(GENERAL_MESSAGE, $message);

                }

        }

}

//

// 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)

//

$join_sql_table = ( !isset($post_id) ) ? '' : ", " . POSTS_TABLE . " p, " . POSTS_TABLE . " p2 ";

$join_sql = ( !isset($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";

$count_sql = ( !isset($post_id) ) ? '' : ", COUNT(p2.post_id) AS prev_posts";

$order_sql = ( !isset($post_id) ) ? '' : "GROUP BY p.post_id, t.topic_id, t.topic_title, t.topic_status, t.topic_replies, t.topic_time, t.topic_type, t.topic_vote, t.topic_last_post_id, f.forum_name, f.forum_status, f.forum_id, f.auth_view, f.auth_read, f.auth_post, f.auth_reply, f.auth_edit, f.auth_delete, f.auth_sticky, f.auth_announce, f.auth_pollcreate, f.auth_vote, f.auth_attachments ORDER BY p.post_id ASC";

$sql = "SELECT t.topic_id, t.topic_title, t.topic_status, t.topic_replies, t.topic_time, t.topic_type, t.topic_vote, t.topic_last_post_id, f.forum_name, f.forum_status, f.forum_id, f.auth_view, f.auth_read, f.auth_post, f.auth_reply, f.auth_edit, f.auth_delete, f.auth_sticky, f.auth_announce, f.auth_pollcreate, f.auth_vote, f.auth_attachments" . $count_sql . "

        FROM " . TOPICS_TABLE . " t, " . FORUMS_TABLE . " f" . $join_sql_table . "

        WHERE $join_sql

                AND f.forum_id = t.forum_id

                $order_sql";

if ( !($result = $db->sql_query($sql)) )

{

        message_die(GENERAL_ERROR, "Could not obtain topic information", '', __LINE__, __FILE__, $sql);

}

if ( !($forum_topic_data = $db->sql_fetchrow($result)) )

{

        message_die(GENERAL_MESSAGE, 'Topic_post_not_exist');

}

$forum_id = $forum_topic_data['forum_id'];

//

// Start session management

//

$userdata = session_pagestart($user_ip, $forum_id);

init_userprefs($userdata);

//

// End session management

//

//

// Start auth check

//

$is_auth = array();

$is_auth = auth(AUTH_ALL, $forum_id, $userdata, $forum_topic_data);

if( !$is_auth['auth_view'] || !$is_auth['auth_read'] )

{

        if ( !$userdata['session_logged_in'] )

        {

                $redirect = ( isset($post_id) ) ? POST_POST_URL . "=$post_id" : POST_TOPIC_URL . "=$topic_id";

                $redirect .= ( isset($start) ) ? "&start=$start" : '';

                $header_location = ( @preg_match("/Microsoft|WebSTAR|Xitami/", getenv("SERVER_SOFTWARE")) ) ? "Refresh: 0; URL=" : "Location: ";

                header($header_location . append_sid("login.$phpEx?redirect=viewtopic.$phpEx&$redirect", true));

                exit;

        }

        $message = ( !$is_auth['auth_view'] ) ? $lang['Topic_post_not_exist'] : sprintf($lang['Sorry_auth_read'], $is_auth['auth_read_type']);

        message_die(GENERAL_MESSAGE, $message);

}

//

// End auth check

//

$forum_name = $forum_topic_data['forum_name'];

$topic_title = $forum_topic_data['topic_title'];

$topic_id = $forum_topic_data['topic_id'];

$topic_time = $forum_topic_data['topic_time'];

if ( !empty($post_id) )

{

        $start = floor(($forum_topic_data['prev_posts'] - 1) / $board_config['posts_per_page']) * $board_config['posts_per_page'];

}

//

// Is user watching this thread?

//

if( $userdata['session_logged_in'] )

{

        $can_watch_topic = TRUE;

        $sql = "SELECT notify_status

                FROM " . TOPICS_WATCH_TABLE . "

                WHERE topic_id = $topic_id

                        AND user_id = " . $userdata['user_id'];

        if ( !($result = $db->sql_query($sql)) )

        {

                message_die(GENERAL_ERROR, "Could not obtain topic watch information", '', __LINE__, __FILE__, $sql);

        }

        if ( $row = $db->sql_fetchrow($result) )

        {

                if ( isset($HTTP_GET_VARS['unwatch']) )

                {

                        if ( $HTTP_GET_VARS['unwatch'] == 'topic' )

                        {

                                $is_watching_topic = 0;

                                $sql_priority = (SQL_LAYER == "mysql") ? "LOW_PRIORITY" : '';

                                $sql = "DELETE $sql_priority FROM " . TOPICS_WATCH_TABLE . "

                                        WHERE topic_id = $topic_id

                                                AND user_id = " . $userdata['user_id'];

                                if ( !($result = $db->sql_query($sql)) )

                                {

                                        message_die(GENERAL_ERROR, "Could not delete topic watch information", '', __LINE__, __FILE__, $sql);

                                }

                        }

                        $template->assign_vars(array(

                                'META' => '<meta http-equiv="refresh" content="3;url=' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;start=$start") . '">')

                        );

                        $message = $lang['No_longer_watching'] . '<br /><br />' . sprintf($lang['Click_return_topic'], '<a href="' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;start=$start") . '">', '</a>');

                        message_die(GENERAL_MESSAGE, $message);

                }

                else

                {

                        $is_watching_topic = TRUE;

                        if ( $row['notify_status'] )

                        {

                                $sql_priority = (SQL_LAYER == "mysql") ? "LOW_PRIORITY" : '';

                                $sql = "UPDATE $sql_priority " . TOPICS_WATCH_TABLE . "

                                        SET notify_status = 0

                                        WHERE topic_id = $topic_id

                                                AND user_id = " . $userdata['user_id'];

                                if ( !($result = $db->sql_query($sql)) )

                                {

                                        message_die(GENERAL_ERROR, "Could not update topic watch information", '', __LINE__, __FILE__, $sql);

                                }

                        }

                }

        }

        else

        {

                if ( isset($HTTP_GET_VARS['watch']) )

                {

                        if ( $HTTP_GET_VARS['watch'] == 'topic' )

                        {

                                $is_watching_topic = TRUE;

                                $sql_priority = (SQL_LAYER == "mysql") ? "LOW_PRIORITY" : '';

                                $sql = "INSERT $sql_priority INTO " . TOPICS_WATCH_TABLE . " (user_id, topic_id, notify_status)

                                        VALUES (" . $userdata['user_id'] . ", $topic_id, 0)";

                                if ( !($result = $db->sql_query($sql)) )

                                {

                                        message_die(GENERAL_ERROR, "Could not insert topic watch information", '', __LINE__, __FILE__, $sql);

                                }

                        }

                        $template->assign_vars(array(

                                'META' => '<meta http-equiv="refresh" content="3;url=' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;start=$start") . '">')

                        );

                        $message = $lang['You_are_watching'] . '<br /><br />' . sprintf($lang['Click_return_topic'], '<a href="' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;start=$start") . '">', '</a>');

                        message_die(GENERAL_MESSAGE, $message);

                }

                else

                {

                        $is_watching_topic = 0;

                }

        }

}

else

{

        if ( isset($HTTP_GET_VARS['unwatch']) )

        {

                if ( $HTTP_GET_VARS['unwatch'] == 'topic' )

                {

                        $header_location = ( @preg_match("/Microsoft|WebSTAR|Xitami/", getenv("SERVER_SOFTWARE")) ) ? "Refresh: 0; URL=" : "Location: ";

                        header($header_location . append_sid("login.$phpEx?redirect=viewtopic.$phpEx&" . POST_TOPIC_URL . "=$topic_id&unwatch=topic", true));

                        exit;

                }

        }

        else

        {

                $can_watch_topic = 0;

                $is_watching_topic = 0;

        }

}

//

// Generate a 'Show posts in previous x days' select box. If the postdays var is POSTed

// then get it's value, find the number of topics with dates newer than it (to properly

// handle pagination) and alter the main query

//

$previous_days = array(0, 1, 7, 14, 30, 90, 180, 364);

$previous_days_text = array($lang['All_Posts'], $lang['1_Day'], $lang['7_Days'], $lang['2_Weeks'], $lang['1_Month'], $lang['3_Months'], $lang['6_Months'], $lang['1_Year']);

if( !empty($HTTP_POST_VARS['postdays']) || !empty($HTTP_GET_VARS['postdays']) )

{

        $post_days = ( !empty($HTTP_POST_VARS['postdays']) ) ? $HTTP_POST_VARS['postdays'] : $HTTP_GET_VARS['postdays'];

        $min_post_time = time() - ($post_days * 86400);

        $sql = "SELECT COUNT(p.post_id) AS num_posts

                FROM " . TOPICS_TABLE . " t, " . POSTS_TABLE . " p

                WHERE t.topic_id = $topic_id

                        AND p.topic_id = t.topic_id

                        AND p.post_time >= $min_post_time";

        if ( !($result = $db->sql_query($sql)) )

        {

                message_die(GENERAL_ERROR, "Could not obtain limited topics count information", '', __LINE__, __FILE__, $sql);

        }

        $total_replies = ( $row = $db->sql_fetchrow($result) ) ? $row['num_posts'] : 0;

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

        if ( !empty($HTTP_POST_VARS['postdays']))

        {

                $start = 0;

        }

}

else

{

        $total_replies = $forum_topic_data['topic_replies'] + 1;

        $limit_posts_time = '';

        $post_days = 0;

}

$select_post_days = '<select name="postdays">';

for($i = 0; $i < count($previous_days); $i++)

{

        $selected = ($post_days == $previous_days[$i]) ? ' selected="selected"' : '';

        $select_post_days .= '<option value="' . $previous_days[$i] . '"' . $selected . '>' . $previous_days_text[$i] . '</option>';

}

$select_post_days .= '</select>';

//

// Decide how to order the post display

//

if ( !empty($HTTP_POST_VARS['postorder']) || !empty($HTTP_GET_VARS['postorder']) )

{

        $post_order = (!empty($HTTP_POST_VARS['postorder'])) ? $HTTP_POST_VARS['postorder'] : $HTTP_GET_VARS['postorder'];

        $post_time_order = ($post_order == "asc") ? "ASC" : "DESC";

}

else

{

        $post_order = 'asc';

        $post_time_order = 'ASC';

}

$select_post_order = '<select name="postorder">';

if ( $post_time_order == 'ASC' )

{

        $select_post_order .= '<option value="asc" selected="selected">' . $lang['Oldest_First'] . '</option><option value="desc">' . $lang['Newest_First'] . '</option>';

}

else

{

        $select_post_order .= '<option value="asc">' . $lang['Oldest_First'] . '</option><option value="desc" selected="selected">' . $lang['Newest_First'] . '</option>';

}

$select_post_order .= '</select>';

//

// Go ahead and pull all data for this topic

//

$sql = "SELECT u.username, u.user_id, u.user_posts, u.user_from, u.user_website, u.user_email, u.user_icq, u.user_aim, u.user_yim, u.user_regdate, u.user_msnm, u.user_viewemail, u.user_rank, u.user_sig, u.user_sig_bbcode_uid, u.user_avatar, u.user_avatar_type, u.user_allowavatar, u.user_allowsmile, p.*,  pt.post_text, pt.post_subject, pt.bbcode_uid

        FROM " . POSTS_TABLE . " p, " . USERS_TABLE . " u, " . POSTS_TEXT_TABLE . " pt

        WHERE p.topic_id = $topic_id

                $limit_posts_time

                AND pt.post_id = p.post_id

                AND u.user_id = p.poster_id

        ORDER BY p.post_time $post_time_order

        LIMIT $start, ".$board_config['posts_per_page'];

if ( !($result = $db->sql_query($sql)) )

{

        message_die(GENERAL_ERROR, "Could not obtain post/user information.", '', __LINE__, __FILE__, $sql);

}

if ( $row = $db->sql_fetchrow($result) )

{

        $postrow = array();

        do

        {

                $postrow[] = $row;

        }

        while ( $row = $db->sql_fetchrow($result) );

        $db->sql_freeresult($result);

        $total_posts = count($postrow);

}

else

{

        message_die(GENERAL_MESSAGE, $lang['No_posts_topic']);

}

$sql = "SELECT *

        FROM " . RANKS_TABLE . "

        ORDER BY rank_special, rank_min";

if ( !($result = $db->sql_query($sql)) )

{

        message_die(GENERAL_ERROR, "Could not obtain ranks information.", '', __LINE__, __FILE__, $sql);

}

$ranksrow = array();

while ( $row = $db->sql_fetchrow($result) )

{

        $ranksrow[] = $row;

}

$db->sql_freeresult($result);

//

// Define censored word matches

//

$orig_word = array();

$replacement_word = array();

obtain_word_list($orig_word, $replacement_word);

//

// Censor topic title

//

if ( count($orig_word) )

{

        $topic_title = preg_replace($orig_word, $replacement_word, $topic_title);

}

//

// Was a highlight request part of the URI? Yes, this idea was

// taken from vB but we did already have a highlighter in place

// in search itself ... it's just been extended a bit!

//

if ( isset($HTTP_GET_VARS['highlight']) )

{

        $highlight_match = array();

        //

        // Split words and phrases

        //

        $words = explode(' ', trim(urldecode($HTTP_GET_VARS['highlight'])));

        for($i = 0; $i < count($words); $i++)

        {

                if ( trim($words[$i]) != '' )

                {

                        $highlight_match[] = '#\b(' . str_replace("*", "([\w]+)?", $words[$i]) . ')\b#is';

                }

        }

        $highlight_active = ( count($highlight_match) ) ? true : false;

}

else

{

        $highlight_active = false;

}

//

// Post, reply and other URL generation for

// templating vars

//

$new_topic_url = append_sid("posting.$phpEx?mode=newtopic&" . POST_FORUM_URL . "=$forum_id");

$reply_topic_url = append_sid("posting.$phpEx?mode=reply&" . POST_TOPIC_URL . "=$topic_id");

$view_forum_url = append_sid("viewforum.$phpEx?" . POST_FORUM_URL . "=$forum_id");

$view_prev_topic_url = append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&view=previous");

$view_next_topic_url = append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&view=next");

//

// Mozilla navigation bar

//

$nav_links['prev'] = array(

        'url' => $view_prev_topic_url,

        'title' => $lang['View_previous_topic']

);

$nav_links['next'] = array(

        'url' => $view_next_topic_url,

        'title' => $lang['View_next_topic']

);

$nav_links['up'] = array(

        'url' => $view_forum_url,

        'title' => $forum_name

);

$reply_img = ( $forum_topic_data['forum_status'] == FORUM_LOCKED || $forum_topic_data['topic_status'] == TOPIC_LOCKED ) ? $images['reply_locked'] : $images['reply_new'];

$reply_alt = ( $forum_topic_data['forum_status'] == FORUM_LOCKED || $forum_topic_data['topic_status'] == TOPIC_LOCKED ) ? $lang['Topic_locked'] : $lang['Reply_to_topic'];

$post_img = ( $forum_topic_data['forum_status'] == FORUM_LOCKED ) ? $images['post_locked'] : $images['post_new'];

$post_alt = ( $forum_topic_data['forum_status'] == FORUM_LOCKED ) ? $lang['Forum_locked'] : $lang['Post_new_topic'];

//

// Set a cookie for this topic

//

if ( $userdata['session_logged_in'] )

{

        $tracking_topics = ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_t']) ) ? unserialize($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_t']) : array();

        $tracking_forums = ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_f']) ) ? unserialize($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_f']) : array();

        if ( !empty($tracking_topics[$topic_id]) && !empty($tracking_forums[$forum_id]) )

        {

                $topic_last_read = ( $tracking_topics[$topic_id] > $tracking_forums[$forum_id] ) ? $tracking_topics[$topic_id] : $tracking_forums[$forum_id];

        }

        else if ( !empty($tracking_topics[$topic_id]) || !empty($tracking_forums[$forum_id]) )

        {

                $topic_last_read = ( !empty($tracking_topics[$topic_id]) ) ? $tracking_topics[$topic_id] : $tracking_forums[$forum_id];

        }

        else

        {

                $topic_last_read = $userdata['user_lastvisit'];

        }

        if ( count($tracking_topics) >= 150 && empty($tracking_topics[$topic_id]) )

        {

                asort($tracking_topics);

                unset($tracking_topics[key($tracking_topics)]);

        }

        $tracking_topics[$topic_id] = time();

        setcookie($board_config['cookie_name'] . '_t', serialize($tracking_topics), 0, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']);

}

//

// Load templates

//

$template->set_filenames(array(

        'body' => 'viewtopic_body.tpl')

);

make_jumpbox('viewforum.'.$phpEx, $forum_id);

//

// Output page header

//

$page_title = $lang['View_topic'] .' - ' . $topic_title;

include($phpbb_root_path . 'includes/page_header.'.$phpEx);

//

// User authorisation levels output

//

$s_auth_can = ( ( $is_auth['auth_post'] ) ? $lang['Rules_post_can'] : $lang['Rules_post_cannot'] ) . '<br />';

$s_auth_can .= ( ( $is_auth['auth_reply'] ) ? $lang['Rules_reply_can'] : $lang['Rules_reply_cannot'] ) . '<br />';

$s_auth_can .= ( ( $is_auth['auth_edit'] ) ? $lang['Rules_edit_can'] : $lang['Rules_edit_cannot'] ) . '<br />';

$s_auth_can .= ( ( $is_auth['auth_delete'] ) ? $lang['Rules_delete_can'] : $lang['Rules_delete_cannot'] ) . '<br />';

$s_auth_can .= ( ( $is_auth['auth_vote'] ) ? $lang['Rules_vote_can'] : $lang['Rules_vote_cannot'] ) . '<br />';

if ( $is_auth['auth_mod'] )

{

        $s_auth_can .= sprintf($lang['Rules_moderate'], '<a href="' . append_sid("modcp.$phpEx?" . POST_FORUM_URL . "=$forum_id") . '">', '</a>');

        $topic_mod = '<a href="' . append_sid("modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;mode=delete") . '"><img src="' . $images['topic_mod_delete'] . '" alt="' . $lang['Delete_topic'] . '" title="' . $lang['Delete_topic'] . '" border="0" /></a>&nbsp;';

        $topic_mod .= '<a href="' . append_sid("modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;mode=move"). '"><img src="' . $images['topic_mod_move'] . '" alt="' . $lang['Move_topic'] . '" title="' . $lang['Move_topic'] . '" border="0" /></a>&nbsp;';

        $topic_mod .= ( $forum_topic_data['topic_status'] == TOPIC_UNLOCKED ) ? '<a href="' . append_sid("modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;mode=lock") . '"><img src="' . $images['topic_mod_lock'] . '" alt="' . $lang['Lock_topic'] . '" title="' . $lang['Lock_topic'] . '" border="0" /></a>&nbsp;' : '<a href="' . append_sid("modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;mode=unlock") . '"><img src="' . $images['topic_mod_unlock'] . '" alt="' . $lang['Unlock_topic'] . '" title="' . $lang['Unlock_topic'] . '" border="0" /></a>&nbsp;';

        $topic_mod .= '<a href="' . append_sid("modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;mode=split") . '"><img src="' . $images['topic_mod_split'] . '" alt="' . $lang['Split_topic'] . '" title="' . $lang['Split_topic'] . '" border="0" /></a>&nbsp;';

}

//

// Topic watch information

//

$s_watching_topic = '';

if ( $can_watch_topic )

{

        if ( $is_watching_topic )

        {

                $s_watching_topic = '<a href="' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;unwatch=topic&amp;start=$start") . '">' . $lang['Stop_watching_topic'] . '</a>';

                $s_watching_topic_img = ( isset($images['Topic_un_watch']) ) ? '<a href="' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;unwatch=topic&amp;start=$start") . '"><img src="' . $images['Topic_un_watch'] . '" alt="' . $lang['Stop_watching_topic'] . '" title="' . $lang['Stop_watching_topic'] . '" border="0"></a>' : '';

        }

        else

        {

                $s_watching_topic = '<a href="' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;watch=topic&amp;start=$start") . '">' . $lang['Start_watching_topic'] . '</a>';

                $s_watching_topic_img = ( isset($images['Topic_watch']) ) ? '<a href="' . append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&amp;watch=topic&amp;start=$start") . '"><img src="' . $images['Topic_watch'] . '" alt="' . $lang['Stop_watching_topic'] . '" title="' . $lang['Start_watching_topic'] . '" border="0"></a>' : '';

        }

}

//

// If we've got a hightlight set pass it on to pagination,

// I get annoyed when I lose my highlight after the first page.

//

$pagination = ( $highlight_active ) ? generate_pagination("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&postdays=$post_days&postorder=$post_order&highlight=" . $HTTP_GET_VARS['highlight'], $total_replies, $board_config['posts_per_page'], $start) : generate_pagination("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&postdays=$post_days&postorder=$post_order", $total_replies, $board_config['posts_per_page'], $start);

//

// Send vars to template

//

$template->assign_vars(array(

        'FORUM_ID' => $forum_id,

    'FORUM_NAME' => $forum_name,

    'TOPIC_ID' => $topic_id,

    'TOPIC_TITLE' => $topic_title,

        'PAGINATION' => $pagination,

        'PAGE_NUMBER' => sprintf($lang['Page_of'], ( floor( $start / $board_config['posts_per_page'] ) + 1 ), ceil( $total_replies / $board_config['posts_per_page'] )),

        'POST_IMG' => $post_img,

        'REPLY_IMG' => $reply_img,

        'L_AUTHOR' => $lang['Author'],

        'L_MESSAGE' => $lang['Message'],

        'L_POSTED' => $lang['Posted'],

        'L_POST_SUBJECT' => $lang['Post_subject'],

        'L_VIEW_NEXT_TOPIC' => $lang['View_next_topic'],

        'L_VIEW_PREVIOUS_TOPIC' => $lang['View_previous_topic'],

        'L_POST_NEW_TOPIC' => $post_alt,

        'L_POST_REPLY_TOPIC' => $reply_alt,

        'L_BACK_TO_TOP' => $lang['Back_to_top'],

        'L_DISPLAY_POSTS' => $lang['Display_posts'],

        'L_LOCK_TOPIC' => $lang['Lock_topic'],

        'L_UNLOCK_TOPIC' => $lang['Unlock_topic'],

        'L_MOVE_TOPIC' => $lang['Move_topic'],

        'L_SPLIT_TOPIC' => $lang['Split_topic'],

        'L_DELETE_TOPIC' => $lang['Delete_topic'],

        'L_GOTO_PAGE' => $lang['Goto_page'],

        'S_TOPIC_LINK' => POST_TOPIC_URL,

        'S_SELECT_POST_DAYS' => $select_post_days,