simple-machines-forum/Sources/Topic.php

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5 KiB
PHP

<?php
/**
* This file takes care of actions on topics:
* lock/unlock a topic, sticky/unsticky it,
*
* Simple Machines Forum (SMF)
*
* @package SMF
* @author Simple Machines https://www.simplemachines.org
* @copyright 2022 Simple Machines and individual contributors
* @license https://www.simplemachines.org/about/smf/license.php BSD
*
* @version 2.1.0
*/
if (!defined('SMF'))
die('No direct access...');
/**
* Locks a topic... either by way of a moderator or the topic starter.
* What this does:
* - locks a topic, toggles between locked/unlocked/admin locked.
* - only admins can unlock topics locked by other admins.
* - requires the lock_own or lock_any permission.
* - logs the action to the moderator log.
* - returns to the topic after it is done.
* - it is accessed via ?action=lock.
*/
function LockTopic()
{
global $topic, $user_info, $sourcedir, $board, $smcFunc;
// Just quit if there's no topic to lock.
if (empty($topic))
fatal_lang_error('not_a_topic', false);
checkSession('get');
// Get Subs-Post.php for sendNotifications.
require_once($sourcedir . '/Subs-Post.php');
// Find out who started the topic - in case User Topic Locking is enabled.
$request = $smcFunc['db_query']('', '
SELECT id_member_started, locked
FROM {db_prefix}topics
WHERE id_topic = {int:current_topic}
LIMIT 1',
array(
'current_topic' => $topic,
)
);
list ($starter, $locked) = $smcFunc['db_fetch_row']($request);
$smcFunc['db_free_result']($request);
// Can you lock topics here, mister?
$user_lock = !allowedTo('lock_any');
if ($user_lock && $starter == $user_info['id'])
isAllowedTo('lock_own');
else
isAllowedTo('lock_any');
// Another moderator got the job done first?
if (isset($_GET['sa']) && $_GET['sa'] == 'unlock' && $locked == '0')
fatal_lang_error('error_topic_locked_already', false);
elseif (isset($_GET['sa']) && $_GET['sa'] == 'lock' && ($locked == '1' || $locked == '2'))
fatal_lang_error('error_topic_unlocked_already', false);
// Locking with high privileges.
if ($locked == '0' && !$user_lock)
$locked = '1';
// Locking with low privileges.
elseif ($locked == '0')
$locked = '2';
// Unlocking - make sure you don't unlock what you can't.
elseif ($locked == '2' || ($locked == '1' && !$user_lock))
$locked = '0';
// You cannot unlock this!
else
fatal_lang_error('locked_by_admin', 'user');
// Actually lock the topic in the database with the new value.
$smcFunc['db_query']('', '
UPDATE {db_prefix}topics
SET locked = {int:locked}
WHERE id_topic = {int:current_topic}',
array(
'current_topic' => $topic,
'locked' => $locked,
)
);
// If they are allowed a "moderator" permission, log it in the moderator log.
if (!$user_lock)
logAction($locked ? 'lock' : 'unlock', array('topic' => $topic, 'board' => $board));
// Notify people that this topic has been locked?
sendNotifications($topic, empty($locked) ? 'unlock' : 'lock');
// Back to the topic!
redirectexit('topic=' . $topic . '.' . $_REQUEST['start'] . ';moderate');
}
/**
* Sticky a topic.
* Can't be done by topic starters - that would be annoying!
* What this does:
* - stickies a topic - toggles between sticky and normal.
* - requires the make_sticky permission.
* - adds an entry to the moderator log.
* - when done, sends the user back to the topic.
* - accessed via ?action=sticky.
*/
function Sticky()
{
global $topic, $board, $sourcedir, $smcFunc;
// Make sure the user can sticky it, and they are stickying *something*.
isAllowedTo('make_sticky');
// You can't sticky a board or something!
if (empty($topic))
fatal_lang_error('not_a_topic', false);
checkSession('get');
// We need Subs-Post.php for the sendNotifications() function.
require_once($sourcedir . '/Subs-Post.php');
// Is this topic already stickied, or no?
$request = $smcFunc['db_query']('', '
SELECT is_sticky
FROM {db_prefix}topics
WHERE id_topic = {int:current_topic}
LIMIT 1',
array(
'current_topic' => $topic,
)
);
list ($is_sticky) = $smcFunc['db_fetch_row']($request);
$smcFunc['db_free_result']($request);
// Another moderator got the job done first?
if (isset($_GET['sa']) && $_GET['sa'] == 'nonsticky' && $is_sticky == '0')
fatal_lang_error('error_topic_nonsticky_already', false);
elseif (isset($_GET['sa']) && $_GET['sa'] == 'sticky' && $is_sticky == '1')
fatal_lang_error('error_topic_sticky_already', false);
// Toggle the sticky value.... pretty simple ;).
$smcFunc['db_query']('', '
UPDATE {db_prefix}topics
SET is_sticky = {int:is_sticky}
WHERE id_topic = {int:current_topic}',
array(
'current_topic' => $topic,
'is_sticky' => empty($is_sticky) ? 1 : 0,
)
);
// Log this sticky action - always a moderator thing.
logAction(empty($is_sticky) ? 'sticky' : 'unsticky', array('topic' => $topic, 'board' => $board));
// Notify people that this topic has been stickied?
if (empty($is_sticky))
sendNotifications($topic, 'sticky');
// Take them back to the now stickied topic.
redirectexit('topic=' . $topic . '.' . $_REQUEST['start'] . ';moderate');
}
?>