7 files changed, 36 insertions, 6 deletions
diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index 5df23ae7e8..ee6cb416d3 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -249,7 +249,9 @@ p a {
 		<li>[Change] Improved utf8_clean_string with a more complete list of homographs and NFKC normalization</li>
 		<li>[Fix] Fixed error messages that ACP Database can give (Bug #13463)</li>
 		<li>[Fix] Fixed potential issues with databases that use tables names is uppercase</li>
-	
+		<li>[Fix] Handle forum links/redirects within viewforum if no read permission given (to display login box or error message) (Bug #13467)</li>
+		<li>[Fix] Prevent changing postable forum having subforums to link forum without moving subforums out first</li>
+
 	</ul>
 
 	</div>
diff --git a/phpBB/includes/acp/acp_forums.php b/phpBB/includes/acp/acp_forums.php
index ced09a4708..96f7a15255 100644
--- a/phpBB/includes/acp/acp_forums.php
+++ b/phpBB/includes/acp/acp_forums.php
@@ -991,6 +991,13 @@ class acp_forums
 
 			if ($row['forum_type'] == FORUM_POST && $row['forum_type'] != $forum_data_sql['forum_type'])
 			{
+				// Has subforums and want to change into a link?
+				if ($row['right_id'] - $row['left_id'] > 1 && $forum_data_sql['forum_type'] == FORUM_LINK)
+				{
+					$errors[] = $user->lang['FORUM_WITH_SUBFORUMS_NOT_TO_LINK'];
+					return $errors;
+				}
+
 				// we're turning a postable forum into a non-postable forum
 				if ($forum_data_sql['type_action'] == 'move')
 				{
diff --git a/phpBB/includes/acp/acp_users.php b/phpBB/includes/acp/acp_users.php
index ccb7589aee..8f5fd8d0de 100644
--- a/phpBB/includes/acp/acp_users.php
+++ b/phpBB/includes/acp/acp_users.php
@@ -1546,10 +1546,9 @@ class acp_users
 
 						delete_attachments('attach', $marked);
 
-						$log = (sizeof($log_attachments) == 1) ? 'ATTACHMENT_DELETED' : 'ATTACHMENTS_DELETED';
 						$message = (sizeof($log_attachments) == 1) ? $user->lang['ATTACHMENT_DELETED'] : $user->lang['ATTACHMENTS_DELETED'];
 
-						add_log('admin', $log, implode(', ', $log_attachments));
+						add_log('admin', 'LOG_ATTACHMENTS_DELETED', implode(', ', $log_attachments));
 						trigger_error($message . adm_back_link($this->u_action . '&amp;u=' . $user_id));
 					}
 					else
diff --git a/phpBB/includes/functions_display.php b/phpBB/includes/functions_display.php
index 849c3c60a0..a28d91a7e9 100644
--- a/phpBB/includes/functions_display.php
+++ b/phpBB/includes/functions_display.php
@@ -368,6 +368,24 @@ function display_forums($root_data = '', $display_moderators = true, $return_mod
 		$s_subforums_list = (string) implode(', ', $s_subforums_list);
 		$catless = ($row['parent_id'] == $root_data['forum_id']) ? true : false;
 
+		if ($row['forum_type'] != FORUM_LINK)
+		{
+			$u_viewforum = append_sid("{$phpbb_root_path}viewforum.$phpEx", 'f=' . $row['forum_id']);
+		}
+		else
+		{
+			// If the forum is a link and we count redirects we need to visit it
+			// If the forum is having a password or no read access we do not expose the link, but instead handle it in viewforum
+			if (($row['forum_flags'] & FORUM_FLAG_LINK_TRACK) || $row['forum_password'] || !$auth->acl_get('f_read', $forum_id))
+			{
+				$u_viewforum = append_sid("{$phpbb_root_path}viewforum.$phpEx", 'f=' . $row['forum_id']);
+			}
+			else
+			{
+				$u_viewforum = $row['forum_link'];
+			}
+		}
+
 		$template->assign_block_vars('forumrow', array(
 			'S_IS_CAT'			=> false,
 			'S_NO_CAT'			=> $catless && !$last_catless,
@@ -397,7 +415,7 @@ function display_forums($root_data = '', $display_moderators = true, $return_mod
 			'L_FORUM_FOLDER_ALT'	=> $folder_alt,
 			'L_MODERATOR_STR'		=> $l_moderator,
 
-			'U_VIEWFORUM'		=> ($row['forum_type'] != FORUM_LINK || ($row['forum_flags'] & FORUM_FLAG_LINK_TRACK) || $row['forum_password']) ? append_sid("{$phpbb_root_path}viewforum.$phpEx", 'f=' . $row['forum_id']) : $row['forum_link'],
+			'U_VIEWFORUM'		=> $u_viewforum,
 			'U_LAST_POSTER'		=> get_username_string('profile', $row['forum_last_poster_id'], $row['forum_last_poster_name'], $row['forum_last_poster_colour']),
 			'U_LAST_POST'		=> $last_post_url)
 		);
diff --git a/phpBB/language/en/acp/common.php b/phpBB/language/en/acp/common.php
index 848f9175f3..3923da2b00 100644
--- a/phpBB/language/en/acp/common.php
+++ b/phpBB/language/en/acp/common.php
@@ -402,6 +402,8 @@ $lang = array_merge($lang, array(
 	'LOG_ADMIN_AUTH_FAIL'		=> '<strong>Failed administration login attempt</strong>',
 	'LOG_ADMIN_AUTH_SUCCESS'	=> '<strong>Successful administration login</strong>',
 
+	'LOG_ATTACHMENTS_DELETED'	=> '<strong>Removed user attachments</strong><br />» %s',
+
 	'LOG_ATTACH_EXT_ADD'		=> '<strong>Added or edited attachment extension</strong><br />» %s',
 	'LOG_ATTACH_EXT_DEL'		=> '<strong>Removed attachment extension</strong><br />» %s',
 	'LOG_ATTACH_EXT_UPDATE'		=> '<strong>Updated attachment extension</strong><br />» %s',
diff --git a/phpBB/language/en/acp/forums.php b/phpBB/language/en/acp/forums.php
index 2235772bf4..8ad28f175d 100644
--- a/phpBB/language/en/acp/forums.php
+++ b/phpBB/language/en/acp/forums.php
@@ -102,6 +102,8 @@ $lang = array_merge($lang, array(
 	'FORUM_TYPE'						=> 'Forum type',
 	'FORUM_UPDATED'						=> 'Forum information updated successfully.',
 
+	'FORUM_WITH_SUBFORUMS_NOT_TO_LINK'		=> 'You want to change a postable forum having subforums to a link. Please move all subforums out of this forum before you proceed, because after changing to a link you are no longer able to see the subforums currently connected to this forum.',
+
 	'GENERAL_FORUM_SETTINGS'	=> 'General forum settings',
 
 	'LINK'					=> 'Link',
@@ -126,7 +128,7 @@ $lang = array_merge($lang, array(
 	'PRUNE_STICKY'				=> 'Prune stickies',
 	'PRUNE_OLD_POLLS'			=> 'Prune old polls',
 	'PRUNE_OLD_POLLS_EXPLAIN'	=> 'Removes topics with polls not voted in for post age days.',
-	
+
 	'REDIRECT_ACL'	=> 'Now you are able to %sset permissions%s for this forum.',
 
 	'SYNC_IN_PROGRESS'			=> 'Synchronizing forum',
diff --git a/phpBB/viewforum.php b/phpBB/viewforum.php
index 5e056967ae..f015b2402a 100644
--- a/phpBB/viewforum.php
+++ b/phpBB/viewforum.php
@@ -77,7 +77,7 @@ if (isset($_GET['e']) && !$user->data['is_registered'])
 }
 
 // Permissions check
-if (!$auth->acl_gets('f_list', 'f_read', $forum_id))
+if (!$auth->acl_gets('f_list', 'f_read', $forum_id) || ($forum_data['forum_type'] == FORUM_LINK && $forum_data['forum_link'] && !$auth->acl_get('f_read', $forum_id)))
 {
 	if ($user->data['user_id'] != ANONYMOUS)
 	{