--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/forum/Sources/LockTopic.php	Sun Jul 07 11:25:48 2013 +0200
@@ -0,0 +1,158 @@
+<?php
+
+/**
+ * Simple Machines Forum (SMF)
+ *
+ * @package SMF
+ * @author Simple Machines http://www.simplemachines.org
+ * @copyright 2011 Simple Machines
+ * @license http://www.simplemachines.org/about/smf/license.php BSD
+ *
+ * @version 2.0
+ */
+
+if (!defined('SMF'))
+	die('Hacking attempt...');
+
+/*	This file only takes care of two things - locking and stickying.
+
+	void LockTopic()
+		- 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.
+		- accessed via ?action=lock.
+
+	void Sticky()
+		- 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.
+*/
+
+// Locks a topic... either by way of a moderator or the topic starter.
+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 == $user_info['id'])
+		isAllowedTo('lock_own');
+	else
+		isAllowedTo('lock_any');
+
+	// Locking with high privileges.
+	if ($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'] . (WIRELESS ? ';moderate' : ''));
+}
+
+// Sticky a topic.  Can't be done by topic starters - that would be annoying!
+function Sticky()
+{
+	global $modSettings, $topic, $board, $sourcedir, $smcFunc;
+
+	// Make sure the user can sticky it, and they are stickying *something*.
+	isAllowedTo('make_sticky');
+
+	// You shouldn't be able to (un)sticky a topic if the setting is disabled.
+	if (empty($modSettings['enableStickyTopics']))
+		fatal_lang_error('cannot_make_sticky', false);
+
+	// 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);
+
+	// 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'] . (WIRELESS ? ';moderate' : ''));
+}
+
+?>
\ No newline at end of file