9 files changed, 62 insertions, 14 deletions
diff --git a/phpBB/phpbb/console/command/extension/command.php b/phpBB/phpbb/console/command/extension/command.php
index edde7ce2e2..72325ce768 100644
--- a/phpBB/phpbb/console/command/extension/command.php
+++ b/phpBB/phpbb/console/command/extension/command.php
@@ -13,9 +13,13 @@ abstract class command extends \phpbb\console\command\command
 	/** @var \phpbb\extension\manager */
 	protected $manager;
 
-	function __construct(\phpbb\extension\manager $manager)
+	/** @var \phpbb\log\log */
+	protected $log;
+
+	public function __construct(\phpbb\extension\manager $manager, \phpbb\log\log $log)
 	{
 		$this->manager = $manager;
+		$this->log = $log;
 
 		parent::__construct();
 	}
diff --git a/phpBB/phpbb/console/command/extension/disable.php b/phpBB/phpbb/console/command/extension/disable.php
index e4de70ca34..ceaf168108 100644
--- a/phpBB/phpbb/console/command/extension/disable.php
+++ b/phpBB/phpbb/console/command/extension/disable.php
@@ -40,6 +40,7 @@ class disable extends command
 		}
 		else
 		{
+			$this->log->add('admin', ANONYMOUS, '', 'LOG_EXT_DISABLE', time(), array($name));
 			$output->writeln("<info>Successfully disabled extension $name</info>");
 			return 0;
 		}
diff --git a/phpBB/phpbb/console/command/extension/enable.php b/phpBB/phpbb/console/command/extension/enable.php
index ee7dae76aa..757f19005e 100644
--- a/phpBB/phpbb/console/command/extension/enable.php
+++ b/phpBB/phpbb/console/command/extension/enable.php
@@ -35,6 +35,7 @@ class enable extends command
 
 		if ($this->manager->enabled($name))
 		{
+			$this->log->add('admin', ANONYMOUS, '', 'LOG_EXTENSION_ENABLE', time(), array($name));
 			$output->writeln("<info>Successfully enabled extension $name</info>");
 			return 0;
 		}
diff --git a/phpBB/phpbb/console/command/extension/purge.php b/phpBB/phpbb/console/command/extension/purge.php
index c2e1d2928c..0342d116f5 100644
--- a/phpBB/phpbb/console/command/extension/purge.php
+++ b/phpBB/phpbb/console/command/extension/purge.php
@@ -40,6 +40,7 @@ class purge extends command
 		}
 		else
 		{
+			$this->log->add('admin', ANONYMOUS, '', 'LOG_EXT_PURGE', time(), array($name));
 			$output->writeln("<info>Successfully purge extension $name</info>");
 			return 0;
 		}
diff --git a/phpBB/phpbb/db/driver/mysql.php b/phpBB/phpbb/db/driver/mysql.php
index 1a4fd364df..de4d2de9c6 100644
--- a/phpBB/phpbb/db/driver/mysql.php
+++ b/phpBB/phpbb/db/driver/mysql.php
@@ -207,7 +207,26 @@ class mysql extends \phpbb\db\driver\mysql_base
 	*/
 	function sql_affectedrows()
 	{
-		return ($this->db_connect_id) ? @mysql_affected_rows($this->db_connect_id) : false;
+		if ($this->db_connect_id)
+		{
+			// We always want the number of matched rows
+			// instead of changed rows, when running an update.
+			// So when mysql_info() returns the number of matched rows
+			// we return that one instead of mysql_affected_rows()
+			$mysql_info = @mysql_info($this->db_connect_id);
+			if ($mysql_info !== false)
+			{
+				$match = array();
+				preg_match('#^Rows matched: (\d)+  Changed: (\d)+  Warnings: (\d)+$#', $mysql_info, $match);
+				if (isset($match[1]))
+				{
+					return $match[1];
+				}
+			}
+
+			return @mysql_affected_rows($this->db_connect_id);
+		}
+		return false;
 	}
 
 	/**
diff --git a/phpBB/phpbb/db/driver/mysqli.php b/phpBB/phpbb/db/driver/mysqli.php
index 6814599b24..39df175860 100644
--- a/phpBB/phpbb/db/driver/mysqli.php
+++ b/phpBB/phpbb/db/driver/mysqli.php
@@ -57,7 +57,8 @@ class mysqli extends \phpbb\db\driver\mysql_base
 			}
 		}
 
-		$this->db_connect_id = @mysqli_connect($this->server, $this->user, $sqlpassword, $this->dbname, $port, $socket);
+		$this->db_connect_id = mysqli_init();
+		@mysqli_real_connect($this->db_connect_id, $this->server, $this->user, $sqlpassword, $this->dbname, $port, $socket, MYSQLI_CLIENT_FOUND_ROWS);
 
 		if ($this->db_connect_id && $this->dbname != '')
 		{
diff --git a/phpBB/phpbb/extension/manager.php b/phpBB/phpbb/extension/manager.php
index b22fbf07a6..604f680af2 100644
--- a/phpBB/phpbb/extension/manager.php
+++ b/phpBB/phpbb/extension/manager.php
@@ -409,8 +409,13 @@ class manager
 		}
 
 		$iterator = new \RecursiveIteratorIterator(
-			new \RecursiveDirectoryIterator($this->phpbb_root_path . 'ext/', \FilesystemIterator::NEW_CURRENT_AND_KEY | \FilesystemIterator::FOLLOW_SYMLINKS),
-			\RecursiveIteratorIterator::SELF_FIRST);
+			new \phpbb\recursive_dot_prefix_filter_iterator(
+				new \RecursiveDirectoryIterator($this->phpbb_root_path . 'ext/', \FilesystemIterator::NEW_CURRENT_AND_KEY | \FilesystemIterator::FOLLOW_SYMLINKS)
+			),
+			\RecursiveIteratorIterator::SELF_FIRST
+		);
+		$iterator->setMaxDepth(2);
+
 		foreach ($iterator as $file_info)
 		{
 			if ($file_info->isFile() && $file_info->getFilename() == 'ext.' . $this->php_ext)
diff --git a/phpBB/phpbb/notification/manager.php b/phpBB/phpbb/notification/manager.php
index 09d9677ccd..2f7d846d75 100644
--- a/phpBB/phpbb/notification/manager.php
+++ b/phpBB/phpbb/notification/manager.php
@@ -760,17 +760,30 @@ class manager
 	*/
 	public function purge_notifications($notification_type_name)
 	{
-		$notification_type_id = $this->get_notification_type_id($notification_type_name);
+		// If a notification is never used, its type will not be added to the database
+		// nor its id cached. If this method is called by an extension during the
+		// purge step, and that extension never used its notifications,
+		// get_notification_type_id() will throw an exception. However,
+		// because no notification type was added to the database,
+		// there is nothing to delete, so we can silently drop the exception.
+		try
+		{
+			$notification_type_id = $this->get_notification_type_id($notification_type_name);
 
-		$sql = 'DELETE FROM ' . $this->notifications_table . '
-			WHERE notification_type_id = ' . (int) $notification_type_id;
-		$this->db->sql_query($sql);
+			$sql = 'DELETE FROM ' . $this->notifications_table . '
+				WHERE notification_type_id = ' . (int) $notification_type_id;
+			$this->db->sql_query($sql);
 
-		$sql = 'DELETE FROM ' . $this->notification_types_table . '
-			WHERE notification_type_id = ' . (int) $notification_type_id;
-		$this->db->sql_query($sql);
+			$sql = 'DELETE FROM ' . $this->notification_types_table . '
+				WHERE notification_type_id = ' . (int) $notification_type_id;
+			$this->db->sql_query($sql);
 
-		$this->cache->destroy('notification_type_ids');
+			$this->cache->destroy('notification_type_ids');
+		}
+		catch (\phpbb\notification\exception $e)
+		{
+			// Continue
+		}
 	}
 
 	/**
diff --git a/phpBB/phpbb/version_helper.php b/phpBB/phpbb/version_helper.php
index e2fdf6ce63..76bd477e18 100644
--- a/phpBB/phpbb/version_helper.php
+++ b/phpBB/phpbb/version_helper.php
@@ -247,7 +247,7 @@ class version_helper
 
 			$info = json_decode($info, true);
 
-			if (empty($info['stable']) || empty($info['unstable']))
+			if (empty($info['stable']) && empty($info['unstable']))
 			{
 				$this->user->add_lang('acp/common');
 
@@ -263,6 +263,9 @@ class version_helper
 				}
 			}
 
+			$info['stable'] = (empty($info['stable'])) ? array() : $info['stable'];
+			$info['unstable'] = (empty($info['unstable'])) ? $info['stable'] : $info['unstable'];
+
 			$this->cache->put($cache_file, $info, 86400); // 24 hours
 		}