1 files changed, 53 insertions, 1 deletions
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 97429a0be4..940484a0ea 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -1150,10 +1150,43 @@ function phpbb_timezone_select($template, $user, $default = '', $truncate = fals
 function markread($mode, $forum_id = false, $topic_id = false, $post_time = 0, $user_id = 0)
 {
 	global $db, $user, $config;
-	global $request, $phpbb_container;
+	global $request, $phpbb_container, $phpbb_dispatcher;
 
 	$post_time = ($post_time === 0 || $post_time > time()) ? time() : (int) $post_time;
 
+	$should_markread = true;
+
+	/**
+	 * This event is used for performing actions directly before marking forums,
+	 * topics or posts as read.
+	 * 
+	 * It is also possible to prevent the marking. For that, the $should_markread parameter
+	 * should be set to FALSE.
+	 *
+	 * @event core.markread_before
+	 * @var	string	mode				Variable containing marking mode value
+	 * @var	mixed	forum_id			Variable containing forum id, or false
+	 * @var	mixed	topic_id			Variable containing topic id, or false
+	 * @var	int		post_time			Variable containing post time
+	 * @var	int		user_id				Variable containing the user id
+	 * @var	bool	should_markread		Flag indicating if the markread should be done or not.
+	 * @since 3.1.4-RC1
+	 */
+	$vars = array(
+		'mode',
+		'forum_id',
+		'topic_id',
+		'post_time',
+		'user_id',
+		'should_markread',
+	);
+	extract($phpbb_dispatcher->trigger_event('core.markread_before', compact($vars)));
+
+	if (!$should_markread)
+	{
+		return;
+	}
+
 	if ($mode == 'all')
 	{
 		if ($forum_id === false || !sizeof($forum_id))
@@ -1648,6 +1681,7 @@ function get_complete_topic_tracking($forum_id, $topic_ids, $global_announce_lis
 function get_unread_topics($user_id = false, $sql_extra = '', $sql_sort = '', $sql_limit = 1001, $sql_limit_offset = 0)
 {
 	global $config, $db, $user;
+	global $phpbb_dispatcher;
 
 	$user_id = ($user_id === false) ? (int) $user->data['user_id'] : (int) $user_id;
 
@@ -1691,6 +1725,24 @@ function get_unread_topics($user_id = false, $sql_extra = '', $sql_sort = '', $s
 				$sql_sort",
 		);
 
+		/**
+		 * Change SQL query for fetching unread topics data
+		 *
+		 * @event core.get_unread_topics_modify_sql
+		 * @var array     sql_array    Fully assembled SQL query with keys SELECT, FROM, LEFT_JOIN, WHERE
+		 * @var int       last_mark    User's last_mark time
+		 * @var string    sql_extra    Extra WHERE SQL statement
+		 * @var string    sql_sort     ORDER BY SQL sorting statement
+		 * @since 3.1.4-RC1
+		 */
+		$vars = array(
+			'sql_array',
+			'last_mark',
+			'sql_extra',
+			'sql_sort',
+		);
+		extract($phpbb_dispatcher->trigger_event('core.get_unread_topics_modify_sql', compact($vars)));
+
 		$sql = $db->sql_build_query('SELECT', $sql_array);
 		$result = $db->sql_query_limit($sql, $sql_limit, $sql_limit_offset);