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<?php

/**
* Copyright (C) 2008-2012 FluxBB
* based on code by Rickard Andersson copyright (C) 2002-2008 PunBB
* License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher
*/

define('PUN_ROOT', dirname(__FILE__).'/');
require PUN_ROOT.'include/common.php';


if ($pun_user['g_read_board'] == '0')
message($lang_common['No view'], false, '403 Forbidden');


$id = isset($_GET['id']) ? intval($_GET['id']) : 0;
if ($id < 1)
message($lang_common['Bad request'], false, '404 Not Found');

// Load the viewforum.php language file
require PUN_ROOT.'lang/'.$pun_user['language'].'/forum.php';

// Fetch some info about the forum
if (!$pun_user['is_guest'])
$result = $db->query('SELECT f.forum_name, f.redirect_url, f.moderators, f.num_topics, f.sort_by, fp.post_topics, s.user_id AS is_subscribed FROM '.$db->prefix.'forums AS f LEFT JOIN '.$db->prefix.'forum_subscriptions AS s ON (f.id=s.forum_id AND s.user_id='.$pun_user['id'].') LEFT JOIN '.$db->prefix.'forum_perms AS fp ON (fp.forum_id=f.id AND fp.group_id='.$pun_user['g_id'].') WHERE (fp.read_forum IS NULL OR fp.read_forum=1) AND f.id='.$id) or error('Unable to fetch forum info', __FILE__, __LINE__, $db->error());
else
$result = $db->query('SELECT f.forum_name, f.redirect_url, f.moderators, f.num_topics, f.sort_by, fp.post_topics, 0 AS is_subscribed FROM '.$db->prefix.'forums AS f LEFT JOIN '.$db->prefix.'forum_perms AS fp ON (fp.forum_id=f.id AND fp.group_id='.$pun_user['g_id'].') WHERE (fp.read_forum IS NULL OR fp.read_forum=1) AND f.id='.$id) or error('Unable to fetch forum info', __FILE__, __LINE__, $db->error());

if (!$db->num_rows($result))
message($lang_common['Bad request'], false, '404 Not Found');

$cur_forum = $db->fetch_assoc($result);

// Is this a redirect forum? In that case, redirect!
if ($cur_forum['redirect_url'] != '')
{
header('Location: '.$cur_forum['redirect_url']);
exit;
}

// Sort out who the moderators are and if we are currently a moderator (or an admin)
$mods_array = ($cur_forum['moderators'] != '') ? unserialize($cur_forum['moderators']) : array();
$is_admmod = ($pun_user['g_id'] == PUN_ADMIN || ($pun_user['g_moderator'] == '1' && array_key_exists($pun_user['username'], $mods_array))) ? true : false;

switch ($cur_forum['sort_by'])
{
case 0:
$sort_by = 'last_post DESC';
break;
case 1:
$sort_by = 'posted DESC';
break;
case 2:
$sort_by = 'subject ASC';
break;
default:
$sort_by = 'last_post DESC';
break;
}

// Can we or can we not post new topics?
if (($cur_forum['post_topics'] == '' && $pun_user['g_post_topics'] == '1') || $cur_forum['post_topics'] == '1' || $is_admmod)
$post_link = "\t\t\t".'<p class="postlink conr"><a href="post.php?fid='.$id.'">'.$lang_forum['Post topic'].'</a></p>'."\n";
else
$post_link = '';

// Get topic/forum tracking data
if (!$pun_user['is_guest'])
$tracked_topics = get_tracked_topics();

// Determine the topic offset (based on $_GET['p'])
$num_pages = ceil($cur_forum['num_topics'] / $pun_user['disp_topics']);

$p = (!isset($_GET['p']) || $_GET['p'] <= 1 || $_GET['p'] > $num_pages) ? 1 : intval($_GET['p']);
$start_from = $pun_user['disp_topics'] * ($p - 1);

// Generate paging links
$paging_links = '<span class="pages-label">'.$lang_common['Pages'].' </span>'.paginate($num_pages, $p, 'viewforum.php?id='.$id);

if ($pun_config['o_feed_type'] == '1')
$page_head = array('feed' => '<link rel="alternate" type="application/rss+xml" href="extern.php?action=feed&amp;fid='.$id.'&amp;type=rss" title="'.$lang_common['RSS forum feed'].'" />');
else if ($pun_config['o_feed_type'] == '2')
$page_head = array('feed' => '<link rel="alternate" type="application/atom+xml" href="extern.php?action=feed&amp;fid='.$id.'&amp;type=atom" title="'.$lang_common['Atom forum feed'].'" />');

$forum_actions = array();

if (!$pun_user['is_guest'])
{
if ($pun_config['o_forum_subscriptions'] == '1')
{
if ($cur_forum['is_subscribed'])
$forum_actions[] = '<span>'.$lang_forum['Is subscribed'].' - </span><a href="misc.php?action=unsubscribe&amp;fid='.$id.'">'.$lang_forum['Unsubscribe'].'</a>';
else
$forum_actions[] = '<a href="misc.php?action=subscribe&amp;fid='.$id.'">'.$lang_forum['Subscribe'].'</a>';
}

$forum_actions[] = '<a href="misc.php?action=markforumread&amp;fid='.$id.'">'.$lang_common['Mark forum read'].'</a>';
}

$page_title = array(pun_htmlspecialchars($pun_config['o_board_title']), pun_htmlspecialchars($cur_forum['forum_name']));
define('PUN_ALLOW_INDEX', 1);
define('PUN_ACTIVE_PAGE', 'index');
require PUN_ROOT.'header.php';

?>
<div class="linkst">
<div class="inbox crumbsplus">
<ul class="crumbs">
<li><a href="index.php"><?php echo $lang_common['Index'] ?></a></li>
<li><span>»&#160;</span><a href="viewforum.php?id=<?php echo $id ?>"><strong><?php echo pun_htmlspecialchars($cur_forum['forum_name']) ?></strong></a></li>
</ul>
<div class="pagepost">
<p class="pagelink conl"><?php echo $paging_links ?></p>
<?php echo $post_link ?>
</div>
<div class="clearer"></div>
</div>
</div>

<div id="vf" class="blocktable">
<h2><span><?php echo pun_htmlspecialchars($cur_forum['forum_name']) ?></span></h2>
<div class="box">
<div class="inbox">
<table cellspacing="0">
<thead>
<tr>
<th class="tcl" scope="col"><?php echo $lang_common['Topic'] ?></th>
<th class="tc2" scope="col"><?php echo $lang_common['Replies'] ?></th>
<?php if ($pun_config['o_topic_views'] == '1'): ?> <th class="tc3" scope="col"><?php echo $lang_forum['Views'] ?></th>
<?php endif; ?> <th class="tcr" scope="col"><?php echo $lang_common['Last post'] ?></th>
</tr>
</thead>
<tbody>
<?php

// Retrieve a list of topic IDs, LIMIT is (really) expensive so we only fetch the IDs here then later fetch the remaining data
$result = $db->query('SELECT id FROM '.$db->prefix.'topics WHERE forum_id='.$id.' ORDER BY sticky DESC, '.$sort_by.', id DESC LIMIT '.$start_from.', '.$pun_user['disp_topics']) or error('Unable to fetch topic IDs', __FILE__, __LINE__, $db->error());

// If there are topics in this forum
if ($db->num_rows($result))
{
$topic_ids = array();
for ($i = 0;$cur_topic_id = $db->result($result, $i);$i++)
$topic_ids[] = $cur_topic_id;

if (empty($topic_ids))
error('The topic table and forum table seem to be out of sync!', __FILE__, __LINE__);

// Fetch list of topics to display on this page
if ($pun_user['is_guest'] || $pun_config['o_show_dot'] == '0')
{
// Without "the dot"
$sql = 'SELECT id, poster, subject, posted, last_post, last_post_id, last_poster, num_views, num_replies, closed, sticky, moved_to FROM '.$db->prefix.'topics WHERE id IN('.implode(',', $topic_ids).') ORDER BY sticky DESC, '.$sort_by.', id DESC';
}
else
{
// With "the dot"
$sql = 'SELECT p.poster_id AS has_posted, t.id, t.subject, t.poster, t.posted, t.last_post, t.last_post_id, t.last_poster, t.num_views, t.num_replies, t.closed, t.sticky, t.moved_to FROM '.$db->prefix.'topics AS t LEFT JOIN '.$db->prefix.'posts AS p ON t.id=p.topic_id AND p.poster_id='.$pun_user['id'].' WHERE t.id IN('.implode(',', $topic_ids).') GROUP BY t.id'.($db_type == 'pgsql' ? ', t.subject, t.poster, t.posted, t.last_post, t.last_post_id, t.last_poster, t.num_views, t.num_replies, t.closed, t.sticky, t.moved_to, p.poster_id' : '').' ORDER BY t.sticky DESC, t.'.$sort_by.', t.id DESC';
}

$result = $db->query($sql) or error('Unable to fetch topic list', __FILE__, __LINE__, $db->error());

$topic_count = 0;
while ($cur_topic = $db->fetch_assoc($result))
{
++$topic_count;
$status_text = array();
$item_status = ($topic_count % 2 == 0) ? 'roweven' : 'rowodd';
$icon_type = 'icon';

if (is_null($cur_topic['moved_to']))
$last_post = '<a href="viewtopic.php?pid='.$cur_topic['last_post_id'].'#p'.$cur_topic['last_post_id'].'">'.format_time($cur_topic['last_post']).'</a> <span class="byuser">'.$lang_common['by'].' '.pun_htmlspecialchars($cur_topic['last_poster']).'</span>';
else
$last_post = '- - -';

if ($pun_config['o_censoring'] == '1')
$cur_topic['subject'] = censor_words($cur_topic['subject']);

if ($cur_topic['sticky'] == '1')
{
$item_status .= ' isticky';
$status_text[] = '<span class="stickytext">'.$lang_forum['Sticky'].'</span>';
}

if ($cur_topic['moved_to'] != 0)
{
$subject = '<a href="viewtopic.php?id='.$cur_topic['moved_to'].'">'.pun_htmlspecialchars($cur_topic['subject']).'</a> <span class="byuser">'.$lang_common['by'].' '.pun_htmlspecialchars($cur_topic['poster']).'</span>';
$status_text[] = '<span class="movedtext">'.$lang_forum['Moved'].'</span>';
$item_status .= ' imoved';
}
else if ($cur_topic['closed'] == '0')
$subject = '<a href="viewtopic.php?id='.$cur_topic['id'].'">'.pun_htmlspecialchars($cur_topic['subject']).'</a> <span class="byuser">'.$lang_common['by'].' '.pun_htmlspecialchars($cur_topic['poster']).'</span>';
else
{
$subject = '<a href="viewtopic.php?id='.$cur_topic['id'].'">'.pun_htmlspecialchars($cur_topic['subject']).'</a> <span class="byuser">'.$lang_common['by'].' '.pun_htmlspecialchars($cur_topic['poster']).'</span>';
$status_text[] = '<span class="closedtext">'.$lang_forum['Closed'].'</span>';
$item_status .= ' iclosed';
}

if (!$pun_user['is_guest'] && $cur_topic['last_post'] > $pun_user['last_visit'] && (!isset($tracked_topics['topics'][$cur_topic['id']]) || $tracked_topics['topics'][$cur_topic['id']] < $cur_topic['last_post']) && (!isset($tracked_topics['forums'][$id]) || $tracked_topics['forums'][$id] < $cur_topic['last_post']) && is_null($cur_topic['moved_to']))
{
$item_status .= ' inew';
$icon_type = 'icon icon-new';
$subject = '<strong>'.$subject.'</strong>';
$subject_new_posts = '<span class="newtext">[ <a href="viewtopic.php?id='.$cur_topic['id'].'&amp;action=new" title="'.$lang_common['New posts info'].'">'.$lang_common['New posts'].'</a> ]</span>';
}
else
$subject_new_posts = null;

// Insert the status text before the subject
$subject = implode(' ', $status_text).' '.$subject;

// Should we display the dot or not? :)
if (!$pun_user['is_guest'] && $pun_config['o_show_dot'] == '1')
{
if ($cur_topic['has_posted'] == $pun_user['id'])
{
$subject = '<strong class="ipost">·&#160;</strong>'.$subject;
$item_status .= ' iposted';
}
}

$num_pages_topic = ceil(($cur_topic['num_replies'] + 1) / $pun_user['disp_posts']);

if ($num_pages_topic > 1)
$subject_multipage = '<span class="pagestext">[ '.paginate($num_pages_topic, -1, 'viewtopic.php?id='.$cur_topic['id']).' ]</span>';
else
$subject_multipage = null;

// Should we show the "New posts" and/or the multipage links?
if (!empty($subject_new_posts) || !empty($subject_multipage))
{
$subject .= !empty($subject_new_posts) ? ' '.$subject_new_posts : '';
$subject .= !empty($subject_multipage) ? ' '.$subject_multipage : '';
}

?>
<tr class="<?php echo $item_status ?>">
<td class="tcl">
<div class="<?php echo $icon_type ?>"><div class="nosize"><?php echo forum_number_format($topic_count + $start_from) ?></div></div>
<div class="tclcon">
<div>
<?php echo $subject."\n" ?>
</div>
</div>
</td>
<td class="tc2"><?php echo (is_null($cur_topic['moved_to'])) ? forum_number_format($cur_topic['num_replies']) : '-' ?></td>
<?php if ($pun_config['o_topic_views'] == '1'): ?> <td class="tc3"><?php echo (is_null($cur_topic['moved_to'])) ? forum_number_format($cur_topic['num_views']) : '-' ?></td>
<?php endif; ?> <td class="tcr"><?php echo $last_post ?></td>
</tr>
<?php

}
}
else
{
$colspan = ($pun_config['o_topic_views'] == '1') ? 4 : 3;

?>
<tr class="rowodd inone">
<td class="tcl" colspan="<?php echo $colspan ?>">
<div class="icon inone"><div class="nosize"><!-- --></div></div>
<div class="tclcon">
<div>
<strong><?php echo $lang_forum['Empty forum'] ?></strong>
</div>
</div>
</td>
</tr>
<?php

}

?>
</tbody>
</table>
</div>
</div>
</div>

<div class="linksb">
<div class="inbox crumbsplus">
<div class="pagepost">
<p class="pagelink conl"><?php echo $paging_links ?></p>
<?php echo $post_link ?>
</div>
<ul class="crumbs">
<li><a href="index.php"><?php echo $lang_common['Index'] ?></a></li>
<li><span>»&#160;</span><a href="viewforum.php?id=<?php echo $id ?>"><strong><?php echo pun_htmlspecialchars($cur_forum['forum_name']) ?></strong></a></li>
</ul>
<?php echo (!empty($forum_actions) ? "\t\t".'<p class="subscribelink clearb">'.implode(' - ', $forum_actions).'</p>'."\n" : '') ?>
<div class="clearer"></div>
</div>
</div>
<?php

$forum_id = $id;
$footer_style = 'viewforum';
require PUN_ROOT.'footer.php';
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