13 files changed, 1579 insertions, 0 deletions
diff --git a/phpBB/phpbb/feed/attachments_base.php b/phpBB/phpbb/feed/attachments_base.php
new file mode 100644
index 0000000000..df8f29a626
--- /dev/null
+++ b/phpBB/phpbb/feed/attachments_base.php
@@ -0,0 +1,97 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Abstract class for feeds displaying attachments
+*/
+abstract class attachments_base extends \phpbb\feed\base
+{
+	/**
+	* Attachments that may be displayed
+	*/
+	protected $attachments = array();
+
+	/**
+	* Retrieve the list of attachments that may be displayed
+	*
+	* @param array $post_ids Specify for which post IDs to fetch the attachments (optional)
+	* @param array $topic_ids Specify for which topic IDs to fetch the attachments (optional)
+	*/
+	protected function fetch_attachments($post_ids = array(), $topic_ids = array())
+	{
+		$sql_array = array(
+			'SELECT'   => 'a.*',
+			'FROM'     => array(
+				ATTACHMENTS_TABLE => 'a'
+			),
+			'WHERE'    => 'a.in_message = 0 ',
+			'ORDER_BY' => 'a.filetime DESC, a.post_msg_id ASC',
+		);
+
+		if (!empty($post_ids))
+		{
+			$sql_array['WHERE'] .= 'AND ' . $this->db->sql_in_set('a.post_msg_id', $post_ids);
+		}
+		else if (!empty($topic_ids))
+		{
+			if (isset($this->topic_id))
+			{
+				$topic_ids[] = $this->topic_id;
+			}
+
+			$sql_array['WHERE'] .= 'AND ' . $this->db->sql_in_set('a.topic_id', $topic_ids);
+		}
+		else if (isset($this->topic_id))
+		{
+			$sql_array['WHERE'] .= 'AND a.topic_id = ' . (int) $this->topic_id;
+		}
+		else if (isset($this->forum_id))
+		{
+			$sql_array['LEFT_JOIN'] = array(
+				array(
+					'FROM' => array(TOPICS_TABLE => 't'),
+					'ON'   => 'a.topic_id = t.topic_id',
+				)
+			);
+			$sql_array['WHERE'] .= 'AND t.forum_id = ' . (int) $this->forum_id;
+		}
+		else
+		{
+			// Do not allow querying the full attachments table
+			throw new \RuntimeException($this->user->lang('INVALID_FEED_ATTACHMENTS'));
+		}
+
+		$sql = $this->db->sql_build_query('SELECT', $sql_array);
+		$result = $this->db->sql_query($sql);
+
+		// Set attachments in feed items
+		while ($row = $this->db->sql_fetchrow($result))
+		{
+			$this->attachments[$row['post_msg_id']][] = $row;
+		}
+		$this->db->sql_freeresult($result);
+	}
+
+	/**
+	* Get attachments related to a given post
+	*
+	* @param $post_id  int  Post id
+	* @return mixed Attachments related to $post_id
+	*/
+	public function get_attachments($post_id)
+	{
+		return $this->attachments[$post_id];
+	}
+}
diff --git a/phpBB/phpbb/feed/base.php b/phpBB/phpbb/feed/base.php
new file mode 100644
index 0000000000..eeea0a55df
--- /dev/null
+++ b/phpBB/phpbb/feed/base.php
@@ -0,0 +1,296 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Base class with some generic functions and settings.
+*/
+abstract class base
+{
+	/**
+	* Feed helper object
+	* @var \phpbb\feed\helper
+	*/
+	protected $helper;
+
+	/** @var \phpbb\config\config */
+	protected $config;
+
+	/** @var \phpbb\db\driver\driver_interface */
+	protected $db;
+
+	/** @var \phpbb\cache\driver\driver_interface */
+	protected $cache;
+
+	/** @var \phpbb\user */
+	protected $user;
+
+	/** @var \phpbb\auth\auth */
+	protected $auth;
+
+	/** @var \phpbb\content_visibility */
+	protected $content_visibility;
+
+	/** @var \phpbb\event\dispatcher_interface */
+	protected $phpbb_dispatcher;
+
+	/** @var string */
+	protected $phpEx;
+
+	/**
+	* SQL Query to be executed to get feed items
+	*/
+	var $sql = array();
+
+	/**
+	* Keys specified for retrieval of title, content, etc.
+	*/
+	var $keys = array();
+
+	/**
+	* Number of items to fetch. Usually overwritten by $config['feed_something']
+	*/
+	var $num_items = 15;
+
+	/**
+	* Separator for title elements to separate items (for example forum / topic)
+	*/
+	var $separator = "\xE2\x80\xA2"; // &bull;
+
+	/**
+	* Separator for the statistics row (Posted by, post date, replies, etc.)
+	*/
+	var $separator_stats = "\xE2\x80\x94"; // &mdash;
+
+	/** @var mixed Query result handle */
+	protected $result;
+
+	/**
+	* Constructor
+	*
+	* @param \phpbb\feed\helper					$helper		Feed helper
+	* @param \phpbb\config\config				$config		Config object
+	* @param \phpbb\db\driver\driver_interface	$db			Database connection
+	* @param \phpbb\cache\driver\driver_interface	$cache	Cache object
+	* @param \phpbb\user						$user		User object
+	* @param \phpbb\auth\auth					$auth		Auth object
+	* @param \phpbb\content_visibility			$content_visibility		Content visibility object
+	* @param \phpbb\event\dispatcher_interface	$phpbb_dispatcher		Event dispatcher object
+	* @param string								$phpEx		php file extension
+	*/
+	function __construct(
+		\phpbb\feed\helper $helper,
+		\phpbb\config\config $config,
+		\phpbb\db\driver\driver_interface $db,
+		\phpbb\cache\driver\driver_interface $cache,
+		\phpbb\user $user,
+		\phpbb\auth\auth $auth,
+		\phpbb\content_visibility $content_visibility,
+		\phpbb\event\dispatcher_interface $phpbb_dispatcher,
+		$phpEx
+	)
+	{
+		$this->config = $config;
+		$this->helper = $helper;
+		$this->db = $db;
+		$this->cache = $cache;
+		$this->user = $user;
+		$this->auth = $auth;
+		$this->content_visibility = $content_visibility;
+		$this->phpbb_dispatcher = $phpbb_dispatcher;
+		$this->phpEx = $phpEx;
+
+		$this->set_keys();
+
+		// Allow num_items to be string
+		if (is_string($this->num_items))
+		{
+			$this->num_items = (int) $this->config[$this->num_items];
+
+			// A precaution
+			if (!$this->num_items)
+			{
+				$this->num_items = 10;
+			}
+		}
+	}
+
+	/**
+	* Set keys.
+	*/
+	function set_keys()
+	{
+	}
+
+	/**
+	* Open feed
+	*/
+	function open()
+	{
+	}
+
+	/**
+	* Close feed
+	*/
+	function close()
+	{
+		if (!empty($this->result))
+		{
+			$this->db->sql_freeresult($this->result);
+		}
+	}
+
+	/**
+	* Set key
+	*
+	* @param string $key Key
+	* @param mixed $value Value
+	*/
+	function set($key, $value)
+	{
+		$this->keys[$key] = $value;
+	}
+
+	/**
+	* Get key
+	*
+	* @param string $key Key
+	* @return mixed
+	*/
+	function get($key)
+	{
+		return (isset($this->keys[$key])) ? $this->keys[$key] : null;
+	}
+
+	function get_readable_forums()
+	{
+		static $forum_ids;
+
+		if (!isset($forum_ids))
+		{
+			$forum_ids = array_keys($this->auth->acl_getf('f_read', true));
+		}
+
+		return $forum_ids;
+	}
+
+	function get_moderator_approve_forums()
+	{
+		static $forum_ids;
+
+		if (!isset($forum_ids))
+		{
+			$forum_ids = array_keys($this->auth->acl_getf('m_approve', true));
+		}
+
+		return $forum_ids;
+	}
+
+	function is_moderator_approve_forum($forum_id)
+	{
+		static $forum_ids;
+
+		if (!isset($forum_ids))
+		{
+			$forum_ids = array_flip($this->get_moderator_approve_forums());
+		}
+
+		return (isset($forum_ids[$forum_id])) ? true : false;
+	}
+
+	function get_excluded_forums()
+	{
+		static $forum_ids;
+
+		// Matches acp/acp_board.php
+		$cache_name	= 'feed_excluded_forum_ids';
+
+		if (!isset($forum_ids) && ($forum_ids = $this->cache->get('_' . $cache_name)) === false)
+		{
+			$sql = 'SELECT forum_id
+				FROM ' . FORUMS_TABLE . '
+				WHERE ' . $this->db->sql_bit_and('forum_options', FORUM_OPTION_FEED_EXCLUDE, '<> 0');
+			$result = $this->db->sql_query($sql);
+
+			$forum_ids = array();
+			while ($forum_id = (int) $this->db->sql_fetchfield('forum_id'))
+			{
+				$forum_ids[$forum_id] = $forum_id;
+			}
+			$this->db->sql_freeresult($result);
+
+			$this->cache->put('_' . $cache_name, $forum_ids);
+		}
+
+		return $forum_ids;
+	}
+
+	function is_excluded_forum($forum_id)
+	{
+		$forum_ids = $this->get_excluded_forums();
+
+		return isset($forum_ids[$forum_id]) ? true : false;
+	}
+
+	function get_passworded_forums()
+	{
+		return $this->user->get_passworded_forums();
+	}
+
+	function get_item()
+	{
+		if (!isset($this->result))
+		{
+			if (!$this->get_sql())
+			{
+				return false;
+			}
+
+			$sql_ary = $this->sql;
+
+			/**
+			* Event to modify the feed item sql
+			*
+			* @event core.feed_base_modify_item_sql
+			* @var	array	sql_ary		The SQL array to get the feed item data
+			*
+			* @since 3.1.10-RC1
+			*/
+			$vars = array('sql_ary');
+			extract($this->phpbb_dispatcher->trigger_event('core.feed_base_modify_item_sql', compact($vars)));
+			$this->sql = $sql_ary;
+			unset($sql_ary);
+
+			// Query database
+			$sql = $this->db->sql_build_query('SELECT', $this->sql);
+			$this->result = $this->db->sql_query_limit($sql, $this->num_items);
+		}
+
+		return $this->db->sql_fetchrow($this->result);
+	}
+
+	function user_viewprofile($row)
+	{
+		$author_id = (int) $row[$this->get('author_id')];
+
+		if ($author_id == ANONYMOUS)
+		{
+			// Since we cannot link to a profile, we just return GUEST
+			// instead of $row['username']
+			return $this->user->lang['GUEST'];
+		}
+
+		return '<a href="' . $this->helper->append_sid('memberlist.' . $this->phpEx, 'mode=viewprofile&amp;u=' . $author_id) . '">' . $row[$this->get('creator')] . '</a>';
+	}
+}
diff --git a/phpBB/phpbb/feed/factory.php b/phpBB/phpbb/feed/factory.php
new file mode 100644
index 0000000000..f364f06d03
--- /dev/null
+++ b/phpBB/phpbb/feed/factory.php
@@ -0,0 +1,127 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+* Factory class to return correct object
+*/
+class factory
+{
+	/**
+	* Service container object
+	* @var ContainerInterface
+	*/
+	protected $container;
+
+	/** @var \phpbb\config\config */
+	protected $config;
+
+	/** @var \phpbb\db\driver\driver_interface */
+	protected $db;
+
+	/**
+	* Constructor
+	*
+	* @param ContainerInterface					$container	Container object
+	* @param \phpbb\config\config				$config		Config object
+	* @param \phpbb\db\driver\driver_interface	$db			Database connection
+	*/
+	public function __construct(ContainerInterface $container, \phpbb\config\config $config, \phpbb\db\driver\driver_interface $db)
+	{
+		$this->container = $container;
+		$this->config = $config;
+		$this->db = $db;
+	}
+
+	/**
+	* Return correct object for specified mode
+	*
+	* @param string	$mode		The feeds mode.
+	* @param int	$forum_id	Forum id specified by the script if forum feed provided.
+	* @param int	$topic_id	Topic id specified by the script if topic feed provided.
+	*
+	* @return object	Returns correct feeds object for specified mode.
+	*/
+	function get_feed($mode, $forum_id, $topic_id)
+	{
+		switch ($mode)
+		{
+			case 'forums':
+				if (!$this->config['feed_overall_forums'])
+				{
+					return false;
+				}
+
+				return $this->container->get('feed.forums');
+			break;
+
+			case 'topics':
+			case 'topics_new':
+				if (!$this->config['feed_topics_new'])
+				{
+					return false;
+				}
+
+				return $this->container->get('feed.topics');
+			break;
+
+			case 'topics_active':
+				if (!$this->config['feed_topics_active'])
+				{
+					return false;
+				}
+
+				return $this->container->get('feed.topics_active');
+			break;
+
+			case 'news':
+				// Get at least one news forum
+				$sql = 'SELECT forum_id
+					FROM ' . FORUMS_TABLE . '
+					WHERE ' . $this->db->sql_bit_and('forum_options', FORUM_OPTION_FEED_NEWS, '<> 0');
+				$result = $this->db->sql_query_limit($sql, 1, 0, 600);
+				$s_feed_news = (int) $this->db->sql_fetchfield('forum_id');
+				$this->db->sql_freeresult($result);
+
+				if (!$s_feed_news)
+				{
+					return false;
+				}
+
+				return $this->container->get('feed.news');
+			break;
+
+			default:
+				if ($topic_id && $this->config['feed_topic'])
+				{
+					return $this->container->get('feed.topic')
+								->set_topic_id($topic_id);
+				}
+				else if ($forum_id && $this->config['feed_forum'])
+				{
+					return $this->container->get('feed.forum')
+								->set_forum_id($forum_id);
+				}
+				else if ($this->config['feed_overall'])
+				{
+				return $this->container->get('feed.overall');
+				}
+
+				return false;
+			break;
+		}
+	}
+}
diff --git a/phpBB/phpbb/feed/forum.php b/phpBB/phpbb/feed/forum.php
new file mode 100644
index 0000000000..6aba12a147
--- /dev/null
+++ b/phpBB/phpbb/feed/forum.php
@@ -0,0 +1,146 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Forum feed
+*
+* This will give you the last {$this->num_items} posts made
+* within a specific forum.
+*/
+class forum extends \phpbb\feed\post_base
+{
+	var $forum_id		= 0;
+	var $forum_data		= array();
+
+	/**
+	* Set the Forum ID
+	*
+	* @param int	$forum_id			Forum ID
+	* @return	\phpbb\feed\forum
+	*/
+	public function set_forum_id($forum_id)
+	{
+		$this->forum_id = (int) $forum_id;
+
+		return $this;
+	}
+
+	function open()
+	{
+		// Check if forum exists
+		$sql = 'SELECT forum_id, forum_name, forum_password, forum_type, forum_options
+			FROM ' . FORUMS_TABLE . '
+			WHERE forum_id = ' . $this->forum_id;
+		$result = $this->db->sql_query($sql);
+		$this->forum_data = $this->db->sql_fetchrow($result);
+		$this->db->sql_freeresult($result);
+
+		if (empty($this->forum_data))
+		{
+			trigger_error('NO_FORUM');
+		}
+
+		// Forum needs to be postable
+		if ($this->forum_data['forum_type'] != FORUM_POST)
+		{
+			trigger_error('NO_FEED');
+		}
+
+		// Make sure forum is not excluded from feed
+		if (phpbb_optionget(FORUM_OPTION_FEED_EXCLUDE, $this->forum_data['forum_options']))
+		{
+			trigger_error('NO_FEED');
+		}
+
+		// Make sure we can read this forum
+		if (!$this->auth->acl_get('f_read', $this->forum_id))
+		{
+			trigger_error('SORRY_AUTH_READ');
+		}
+
+		// Make sure forum is not passworded or user is authed
+		if ($this->forum_data['forum_password'])
+		{
+			$forum_ids_passworded = $this->get_passworded_forums();
+
+			if (isset($forum_ids_passworded[$this->forum_id]))
+			{
+				trigger_error('SORRY_AUTH_READ');
+			}
+
+			unset($forum_ids_passworded);
+		}
+
+		parent::open();
+	}
+
+	function get_sql()
+	{
+		// Determine topics with recent activity
+		$sql = 'SELECT topic_id, topic_last_post_time
+			FROM ' . TOPICS_TABLE . '
+			WHERE forum_id = ' . $this->forum_id . '
+				AND topic_moved_id = 0
+				AND ' . $this->content_visibility->get_visibility_sql('topic', $this->forum_id) . '
+			ORDER BY topic_last_post_time DESC, topic_last_post_id DESC';
+		$result = $this->db->sql_query_limit($sql, $this->num_items);
+
+		$topic_ids = array();
+		$min_post_time = 0;
+		while ($row = $this->db->sql_fetchrow())
+		{
+			$topic_ids[] = (int) $row['topic_id'];
+
+			$min_post_time = (int) $row['topic_last_post_time'];
+		}
+		$this->db->sql_freeresult($result);
+
+		if (empty($topic_ids))
+		{
+			return false;
+		}
+
+		parent::fetch_attachments(array(), $topic_ids);
+
+		$this->sql = array(
+			'SELECT'	=>	'p.post_id, p.topic_id, p.post_time, p.post_edit_time, p.post_visibility, p.post_subject, p.post_text, p.bbcode_bitfield, p.bbcode_uid, p.enable_bbcode, p.enable_smilies, p.enable_magic_url, p.post_attachment, ' .
+							'u.username, u.user_id',
+			'FROM'		=> array(
+				POSTS_TABLE		=> 'p',
+				USERS_TABLE		=> 'u',
+			),
+			'WHERE'		=> $this->db->sql_in_set('p.topic_id', $topic_ids) . '
+							AND ' . $this->content_visibility->get_visibility_sql('post', $this->forum_id, 'p.') . '
+							AND p.post_time >= ' . $min_post_time . '
+							AND p.poster_id = u.user_id',
+			'ORDER_BY'	=> 'p.post_time DESC, p.post_id DESC',
+		);
+
+		return true;
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		parent::adjust_item($item_row, $row);
+
+		$item_row['title'] = (isset($row['forum_name']) && $row['forum_name'] !== '') ? $row['forum_name'] . ' ' . $this->separator . ' ' . $item_row['title'] : $item_row['title'];
+		$item_row['forum_id'] = $this->forum_id;
+	}
+
+	function get_item()
+	{
+		return ($row = parent::get_item()) ? array_merge($this->forum_data, $row) : $row;
+	}
+}
diff --git a/phpBB/phpbb/feed/forums.php b/phpBB/phpbb/feed/forums.php
new file mode 100644
index 0000000000..ee14a5bc76
--- /dev/null
+++ b/phpBB/phpbb/feed/forums.php
@@ -0,0 +1,68 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* 'All Forums' feed
+*
+* This will give you a list of all postable forums where feeds are enabled
+* including forum description, topic stats and post stats
+*/
+class forums extends \phpbb\feed\base
+{
+	var $num_items	= 0;
+
+	function set_keys()
+	{
+		$this->set('title',		'forum_name');
+		$this->set('text',		'forum_desc');
+		$this->set('bitfield',	'forum_desc_bitfield');
+		$this->set('bbcode_uid','forum_desc_uid');
+		$this->set('updated',	'forum_last_post_time');
+		$this->set('options',	'forum_desc_options');
+	}
+
+	function get_sql()
+	{
+		$in_fid_ary = array_diff($this->get_readable_forums(), $this->get_excluded_forums());
+		if (empty($in_fid_ary))
+		{
+			return false;
+		}
+
+		// Build SQL Query
+		$this->sql = array(
+			'SELECT'	=> 'f.forum_id, f.left_id, f.forum_name, f.forum_last_post_time,
+							f.forum_desc, f.forum_desc_bitfield, f.forum_desc_uid, f.forum_desc_options,
+							f.forum_topics_approved, f.forum_posts_approved',
+			'FROM'		=> array(FORUMS_TABLE => 'f'),
+			'WHERE'		=> 'f.forum_type = ' . FORUM_POST . '
+							AND ' . $this->db->sql_in_set('f.forum_id', $in_fid_ary),
+			'ORDER_BY'	=> 'f.left_id ASC',
+		);
+
+		return true;
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		$item_row['link'] = $this->helper->append_sid('viewforum.' . $this->phpEx, 'f=' . $row['forum_id']);
+
+		if ($this->config['feed_item_statistics'])
+		{
+			$item_row['statistics'] = $this->user->lang('TOTAL_TOPICS', (int) $row['forum_topics_approved'])
+				. ' ' . $this->separator_stats . ' ' . $this->user->lang('TOTAL_POSTS_COUNT', (int) $row['forum_posts_approved']);
+		}
+	}
+}
diff --git a/phpBB/phpbb/feed/helper.php b/phpBB/phpbb/feed/helper.php
new file mode 100644
index 0000000000..f2030f5ced
--- /dev/null
+++ b/phpBB/phpbb/feed/helper.php
@@ -0,0 +1,179 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Class with some helpful functions used in feeds
+*/
+class helper
+{
+	/** @var \phpbb\config\config */
+	protected $config;
+
+	/** @var \phpbb\user */
+	protected $user;
+
+	/** @var string */
+	protected $phpbb_root_path;
+
+	/** @var string */
+	protected $phpEx;
+
+	/**
+	* Constructor
+	*
+	* @param	\phpbb\config\config	$config		Config object
+	* @param	\phpbb\user		$user		User object
+	* @param	string	$phpbb_root_path	Root path
+	* @param	string	$phpEx				PHP file extension
+	*/
+	public function __construct(\phpbb\config\config $config, \phpbb\user $user, $phpbb_root_path, $phpEx)
+	{
+		$this->config = $config;
+		$this->user = $user;
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->phpEx = $phpEx;
+	}
+
+	/**
+	* Run links through append_sid(), prepend generate_board_url() and remove session id
+	*/
+	public function get_board_url()
+	{
+		static $board_url;
+
+		if (empty($board_url))
+		{
+			$board_url = generate_board_url();
+		}
+
+		return $board_url;
+	}
+
+	/**
+	* Run links through append_sid(), prepend generate_board_url() and remove session id
+	*/
+	public function append_sid($url, $params)
+	{
+		return append_sid($this->get_board_url() . '/' . $url, $params, true, '');
+	}
+
+	/**
+	* Generate ISO 8601 date string (RFC 3339)
+	*/
+	public function format_date($time)
+	{
+		static $zone_offset;
+		static $offset_string;
+
+		if (empty($offset_string))
+		{
+			$zone_offset = $this->user->create_datetime()->getOffset();
+			$offset_string = phpbb_format_timezone_offset($zone_offset);
+		}
+
+		return gmdate("Y-m-d\TH:i:s", $time + $zone_offset) . $offset_string;
+	}
+
+	/**
+	* Generate text content
+	*
+	* @param string $content is feed text content
+	* @param string $uid is bbcode_uid
+	* @param string $bitfield is bbcode bitfield
+	* @param int $options bbcode flag options
+	* @param int $forum_id is the forum id
+	* @param array $post_attachments is an array containing the attachments and their respective info
+	* @return string the html content to be printed for the feed
+	*/
+	public function generate_content($content, $uid, $bitfield, $options, $forum_id, $post_attachments)
+	{
+		if (empty($content))
+		{
+			return '';
+		}
+
+		// Prepare some bbcodes for better parsing
+		$content	= preg_replace("#\[quote(=&quot;.*?&quot;)?:$uid\]\s*(.*?)\s*\[/quote:$uid\]#si", "[quote$1:$uid]<br />$2<br />[/quote:$uid]", $content);
+
+		$content = generate_text_for_display($content, $uid, $bitfield, $options);
+
+		// Add newlines
+		$content = str_replace('<br />', '<br />' . "\n", $content);
+
+		// Convert smiley Relative paths to Absolute path, Windows style
+		$content = str_replace($this->phpbb_root_path . $this->config['smilies_path'], $this->get_board_url() . '/' . $this->config['smilies_path'], $content);
+
+		// Remove "Select all" link and mouse events
+		$content = str_replace('<a href="#" onclick="selectCode(this); return false;">' . $this->user->lang['SELECT_ALL_CODE'] . '</a>', '', $content);
+		$content = preg_replace('#(onkeypress|onclick)="(.*?)"#si', '', $content);
+
+		// Firefox does not support CSS for feeds, though
+
+		// Remove font sizes
+	//	$content = preg_replace('#<span style="font-size: [0-9]+%; line-height: [0-9]+%;">([^>]+)</span>#iU', '\1', $content);
+
+		// Make text strong :P
+	//	$content = preg_replace('#<span style="font-weight: bold?">(.*?)</span>#iU', '<strong>\1</strong>', $content);
+
+		// Italic
+	//	$content = preg_replace('#<span style="font-style: italic?">([^<]+)</span>#iU', '<em>\1</em>', $content);
+
+		// Underline
+	//	$content = preg_replace('#<span style="text-decoration: underline?">([^<]+)</span>#iU', '<u>\1</u>', $content);
+
+		// Remove embed Windows Media Streams
+		$content	= preg_replace( '#<\!--\[if \!IE\]>-->([^[]+)<\!--<!\[endif\]-->#si', '', $content);
+
+		// Do not use &lt; and &gt;, because we want to retain code contained in [code][/code]
+
+		// Remove embed and objects
+		$content	= preg_replace( '#<(object|embed)(.*?) (value|src)=(.*?) ([^[]+)(object|embed)>#si',' <a href=$4 target="_blank"><strong>$1</strong></a> ',$content);
+
+		// Remove some specials html tag, because somewhere there are a mod to allow html tags ;)
+		$content	= preg_replace( '#<(script|iframe)([^[]+)\1>#siU', ' <strong>$1</strong> ', $content);
+
+		// Parse inline images to display with the feed
+		if (!empty($post_attachments))
+		{
+			$update_count = array();
+			parse_attachments($forum_id, $content, $post_attachments, $update_count);
+			$content .= implode('<br />', $post_attachments);
+
+			// Convert attachments' relative path to absolute path
+			$content = str_replace($this->phpbb_root_path . 'download/file.' . $this->phpEx, $this->get_board_url() . '/download/file.' . $this->phpEx, $content);
+		}
+
+		// Remove Comments from inline attachments [ia]
+		$content = preg_replace('#<dd>(.*?)</dd>#','',$content);
+
+		// Replace some entities with their unicode counterpart
+		$entities = array(
+			'&nbsp;'	=> "\xC2\xA0",
+			'&bull;'	=> "\xE2\x80\xA2",
+			'&middot;'	=> "\xC2\xB7",
+			'&copy;'	=> "\xC2\xA9",
+		);
+
+		$content = str_replace(array_keys($entities), array_values($entities), $content);
+
+		// Remove CDATA blocks. ;)
+		$content = preg_replace('#\<\!\[CDATA\[(.*?)\]\]\>#s', '', $content);
+
+		// Other control characters
+		$content = preg_replace('#(?:[\x00-\x1F\x7F]+|(?:\xC2[\x80-\x9F])+)#', '', $content);
+
+		return $content;
+	}
+}
diff --git a/phpBB/phpbb/feed/news.php b/phpBB/phpbb/feed/news.php
new file mode 100644
index 0000000000..5d4786518b
--- /dev/null
+++ b/phpBB/phpbb/feed/news.php
@@ -0,0 +1,109 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* News feed
+*
+* This will give you {$this->num_items} first posts
+* of all topics in the selected news forums.
+*/
+class news extends \phpbb\feed\topic_base
+{
+	function get_news_forums()
+	{
+		static $forum_ids;
+
+		// Matches acp/acp_board.php
+		$cache_name	= 'feed_news_forum_ids';
+
+		if (!isset($forum_ids) && ($forum_ids = $this->cache->get('_' . $cache_name)) === false)
+		{
+			$sql = 'SELECT forum_id
+				FROM ' . FORUMS_TABLE . '
+				WHERE ' . $this->db->sql_bit_and('forum_options', FORUM_OPTION_FEED_NEWS, '<> 0');
+			$result = $this->db->sql_query($sql);
+
+			$forum_ids = array();
+			while ($forum_id = (int) $this->db->sql_fetchfield('forum_id'))
+			{
+				$forum_ids[$forum_id] = $forum_id;
+			}
+			$this->db->sql_freeresult($result);
+
+			$this->cache->put('_' . $cache_name, $forum_ids);
+		}
+
+		return $forum_ids;
+	}
+
+	function get_sql()
+	{
+		// Determine forum ids
+		$in_fid_ary = array_intersect($this->get_news_forums(), $this->get_readable_forums());
+		if (empty($in_fid_ary))
+		{
+			return false;
+		}
+
+		$in_fid_ary = array_diff($in_fid_ary, $this->get_passworded_forums());
+		if (empty($in_fid_ary))
+		{
+			return false;
+		}
+
+		// We really have to get the post ids first!
+		$sql = 'SELECT topic_first_post_id, topic_time
+			FROM ' . TOPICS_TABLE . '
+			WHERE topic_moved_id = 0
+				AND ' . $this->content_visibility->get_forums_visibility_sql('topic', $in_fid_ary) . '
+			ORDER BY topic_time DESC';
+		$result = $this->db->sql_query_limit($sql, $this->num_items);
+
+		$post_ids = array();
+		while ($row = $this->db->sql_fetchrow($result))
+		{
+			$post_ids[] = (int) $row['topic_first_post_id'];
+		}
+		$this->db->sql_freeresult($result);
+
+		if (empty($post_ids))
+		{
+			return false;
+		}
+
+		parent::fetch_attachments($post_ids);
+
+		$this->sql = array(
+			'SELECT'	=> 'f.forum_id, f.forum_name,
+							t.topic_id, t.topic_title, t.topic_poster, t.topic_first_poster_name, t.topic_posts_approved, t.topic_posts_unapproved, t.topic_posts_softdeleted, t.topic_views, t.topic_time, t.topic_last_post_time,
+							p.post_id, p.post_time, p.post_edit_time, p.post_text, p.bbcode_bitfield, p.bbcode_uid, p.enable_bbcode, p.enable_smilies, p.enable_magic_url, p.post_attachment, t.topic_visibility',
+			'FROM'		=> array(
+				TOPICS_TABLE	=> 't',
+				POSTS_TABLE		=> 'p',
+			),
+			'LEFT_JOIN'	=> array(
+				array(
+					'FROM'	=> array(FORUMS_TABLE => 'f'),
+					'ON'	=> 'p.forum_id = f.forum_id',
+				),
+			),
+			'WHERE'		=> 'p.topic_id = t.topic_id
+							AND ' . $this->db->sql_in_set('p.post_id', $post_ids),
+			'ORDER_BY'	=> 'p.post_time DESC, p.post_id DESC',
+		);
+
+		return true;
+	}
+}
diff --git a/phpBB/phpbb/feed/overall.php b/phpBB/phpbb/feed/overall.php
new file mode 100644
index 0000000000..1176a9c182
--- /dev/null
+++ b/phpBB/phpbb/feed/overall.php
@@ -0,0 +1,88 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Board wide feed (aka overall feed)
+*
+* This will give you the newest {$this->num_items} posts
+* from the whole board.
+*/
+class overall extends \phpbb\feed\post_base
+{
+	function get_sql()
+	{
+		$forum_ids = array_diff($this->get_readable_forums(), $this->get_excluded_forums(), $this->get_passworded_forums());
+		if (empty($forum_ids))
+		{
+			return false;
+		}
+
+		// Determine topics with recent activity
+		$sql = 'SELECT topic_id, topic_last_post_time
+			FROM ' . TOPICS_TABLE . '
+			WHERE topic_moved_id = 0
+				AND ' . $this->content_visibility->get_forums_visibility_sql('topic', $forum_ids) . '
+			ORDER BY topic_last_post_time DESC, topic_last_post_id DESC';
+		$result = $this->db->sql_query_limit($sql, $this->num_items);
+
+		$topic_ids = array();
+		$min_post_time = 0;
+		while ($row = $this->db->sql_fetchrow())
+		{
+			$topic_ids[] = (int) $row['topic_id'];
+
+			$min_post_time = (int) $row['topic_last_post_time'];
+		}
+		$this->db->sql_freeresult($result);
+
+		if (empty($topic_ids))
+		{
+			return false;
+		}
+
+		parent::fetch_attachments(array(), $topic_ids);
+
+		// Get the actual data
+		$this->sql = array(
+			'SELECT'	=>	'f.forum_id, f.forum_name, ' .
+							'p.post_id, p.topic_id, p.post_time, p.post_edit_time, p.post_visibility, p.post_subject, p.post_text, p.bbcode_bitfield, p.bbcode_uid, p.enable_bbcode, p.enable_smilies, p.enable_magic_url, p.post_attachment, ' .
+							'u.username, u.user_id',
+			'FROM'		=> array(
+				USERS_TABLE		=> 'u',
+				POSTS_TABLE		=> 'p',
+			),
+			'LEFT_JOIN'	=> array(
+				array(
+					'FROM'	=> array(FORUMS_TABLE	=> 'f'),
+					'ON'	=> 'f.forum_id = p.forum_id',
+				),
+			),
+			'WHERE'		=> $this->db->sql_in_set('p.topic_id', $topic_ids) . '
+							AND ' . $this->content_visibility->get_forums_visibility_sql('post', $forum_ids, 'p.') . '
+							AND p.post_time >= ' . $min_post_time . '
+							AND u.user_id = p.poster_id',
+			'ORDER_BY'	=> 'p.post_time DESC, p.post_id DESC',
+		);
+
+		return true;
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		parent::adjust_item($item_row, $row);
+
+		$item_row['title'] = (isset($row['forum_name']) && $row['forum_name'] !== '') ? $row['forum_name'] . ' ' . $this->separator . ' ' . $item_row['title'] : $item_row['title'];
+	}
+}
diff --git a/phpBB/phpbb/feed/post_base.php b/phpBB/phpbb/feed/post_base.php
new file mode 100644
index 0000000000..011775b6af
--- /dev/null
+++ b/phpBB/phpbb/feed/post_base.php
@@ -0,0 +1,55 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Abstract class for post based feeds
+*/
+abstract class post_base extends \phpbb\feed\attachments_base
+{
+	var $num_items = 'feed_limit_post';
+	var $attachments = array();
+
+	function set_keys()
+	{
+		$this->set('title',		'post_subject');
+		$this->set('title2',	'topic_title');
+
+		$this->set('author_id',	'user_id');
+		$this->set('creator',	'username');
+		$this->set('published',	'post_time');
+		$this->set('updated',	'post_edit_time');
+		$this->set('text',		'post_text');
+
+		$this->set('bitfield',	'bbcode_bitfield');
+		$this->set('bbcode_uid','bbcode_uid');
+
+		$this->set('enable_bbcode',		'enable_bbcode');
+		$this->set('enable_smilies',	'enable_smilies');
+		$this->set('enable_magic_url',	'enable_magic_url');
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		$item_row['link'] = $this->helper->append_sid('viewtopic.' . $this->phpEx, "t={$row['topic_id']}&amp;p={$row['post_id']}#p{$row['post_id']}");
+
+		if ($this->config['feed_item_statistics'])
+		{
+			$item_row['statistics'] = $this->user->lang['POSTED'] . ' ' . $this->user->lang['POST_BY_AUTHOR'] . ' ' . $this->user_viewprofile($row)
+				. ' ' . $this->separator_stats . ' ' . $this->user->format_date($row[$this->get('published')])
+				. (($this->is_moderator_approve_forum($row['forum_id']) && (int) $row['post_visibility'] === ITEM_UNAPPROVED) ? ' ' . $this->separator_stats . ' ' . $this->user->lang['POST_UNAPPROVED'] : '')
+				. (($this->is_moderator_approve_forum($row['forum_id']) && (int) $row['post_visibility'] === ITEM_DELETED) ? ' ' . $this->separator_stats . ' ' . $this->user->lang['POST_DELETED'] : '');
+		}
+	}
+}
diff --git a/phpBB/phpbb/feed/topic.php b/phpBB/phpbb/feed/topic.php
new file mode 100644
index 0000000000..295bf3f795
--- /dev/null
+++ b/phpBB/phpbb/feed/topic.php
@@ -0,0 +1,123 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Topic feed for a specific topic
+*
+* This will give you the last {$this->num_items} posts made within this topic.
+*/
+class topic extends \phpbb\feed\post_base
+{
+	var $topic_id		= 0;
+	var $forum_id		= 0;
+	var $topic_data		= array();
+
+	/**
+	* Set the Topic ID
+	*
+	* @param int	$topic_id			Topic ID
+	* @return	\phpbb\feed\topic
+	*/
+	public function set_topic_id($topic_id)
+	{
+		$this->topic_id = (int) $topic_id;
+
+		return $this;
+	}
+
+	function open()
+	{
+		$sql = 'SELECT f.forum_options, f.forum_password, t.topic_id, t.forum_id, t.topic_visibility, t.topic_title, t.topic_time, t.topic_views, t.topic_posts_approved, t.topic_type
+			FROM ' . TOPICS_TABLE . ' t
+			LEFT JOIN ' . FORUMS_TABLE . ' f
+				ON (f.forum_id = t.forum_id)
+			WHERE t.topic_id = ' . $this->topic_id;
+		$result = $this->db->sql_query($sql);
+		$this->topic_data = $this->db->sql_fetchrow($result);
+		$this->db->sql_freeresult($result);
+
+		if (empty($this->topic_data))
+		{
+			trigger_error('NO_TOPIC');
+		}
+
+		$this->forum_id = (int) $this->topic_data['forum_id'];
+
+		// Make sure topic is either approved or user authed
+		if ($this->topic_data['topic_visibility'] != ITEM_APPROVED && !$this->auth->acl_get('m_approve', $this->forum_id))
+		{
+			trigger_error('SORRY_AUTH_READ');
+		}
+
+		// Make sure forum is not excluded from feed
+		if (phpbb_optionget(FORUM_OPTION_FEED_EXCLUDE, $this->topic_data['forum_options']))
+		{
+			trigger_error('NO_FEED');
+		}
+
+		// Make sure we can read this forum
+		if (!$this->auth->acl_get('f_read', $this->forum_id))
+		{
+			trigger_error('SORRY_AUTH_READ');
+		}
+
+		// Make sure forum is not passworded or user is authed
+		if ($this->topic_data['forum_password'])
+		{
+			$forum_ids_passworded = $this->get_passworded_forums();
+
+			if (isset($forum_ids_passworded[$this->forum_id]))
+			{
+				trigger_error('SORRY_AUTH_READ');
+			}
+
+			unset($forum_ids_passworded);
+		}
+
+		parent::open();
+	}
+
+	function get_sql()
+	{
+		parent::fetch_attachments();
+
+		$this->sql = array(
+			'SELECT'	=>	'p.post_id, p.post_time, p.post_edit_time, p.post_visibility, p.post_subject, p.post_text, p.bbcode_bitfield, p.bbcode_uid, p.enable_bbcode, p.enable_smilies, p.enable_magic_url, p.post_attachment, ' .
+							'u.username, u.user_id',
+			'FROM'		=> array(
+				POSTS_TABLE		=> 'p',
+				USERS_TABLE		=> 'u',
+			),
+			'WHERE'		=> 'p.topic_id = ' . $this->topic_id . '
+								AND ' . $this->content_visibility->get_visibility_sql('post', $this->forum_id, 'p.') . '
+								AND p.poster_id = u.user_id',
+			'ORDER_BY'	=> 'p.post_time DESC, p.post_id DESC',
+		);
+
+		return true;
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		parent::adjust_item($item_row, $row);
+
+		$item_row['forum_id'] = $this->forum_id;
+	}
+
+	function get_item()
+	{
+		return ($row = parent::get_item()) ? array_merge($this->topic_data, $row) : $row;
+	}
+}
diff --git a/phpBB/phpbb/feed/topic_base.php b/phpBB/phpbb/feed/topic_base.php
new file mode 100644
index 0000000000..f9ff368cba
--- /dev/null
+++ b/phpBB/phpbb/feed/topic_base.php
@@ -0,0 +1,70 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Abstract class for topic based feeds
+*/
+abstract class topic_base extends \phpbb\feed\attachments_base
+{
+	var $num_items = 'feed_limit_topic';
+
+	function set_keys()
+	{
+		$this->set('title',		'topic_title');
+		$this->set('title2',	'forum_name');
+
+		$this->set('author_id',	'topic_poster');
+		$this->set('creator',	'topic_first_poster_name');
+		$this->set('published',	'post_time');
+		$this->set('updated',	'post_edit_time');
+		$this->set('text',		'post_text');
+
+		$this->set('bitfield',	'bbcode_bitfield');
+		$this->set('bbcode_uid','bbcode_uid');
+
+		$this->set('enable_bbcode',		'enable_bbcode');
+		$this->set('enable_smilies',	'enable_smilies');
+		$this->set('enable_magic_url',	'enable_magic_url');
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		$item_row['link'] = $this->helper->append_sid('viewtopic.' . $this->phpEx, 't=' . $row['topic_id'] . '&amp;p=' . $row['post_id'] . '#p' . $row['post_id']);
+
+		if ($this->config['feed_item_statistics'])
+		{
+			$item_row['statistics'] = $this->user->lang['POSTED'] . ' ' . $this->user->lang['POST_BY_AUTHOR'] . ' ' . $this->user_viewprofile($row)
+				. ' ' . $this->separator_stats . ' ' . $this->user->format_date($row[$this->get('published')])
+				. ' ' . $this->separator_stats . ' ' . $this->user->lang['REPLIES'] . ' ' . ($this->content_visibility->get_count('topic_posts', $row, $row['forum_id']) - 1)
+				. ' ' . $this->separator_stats . ' ' . $this->user->lang['VIEWS'] . ' ' . $row['topic_views'];
+
+			if ($this->is_moderator_approve_forum($row['forum_id']))
+			{
+				if ((int) $row['topic_visibility'] === ITEM_DELETED)
+				{
+					$item_row['statistics'] .= ' ' . $this->separator_stats . ' ' . $this->user->lang['TOPIC_DELETED'];
+				}
+				else if ((int) $row['topic_visibility'] === ITEM_UNAPPROVED)
+				{
+					$item_row['statistics'] .= ' ' . $this->separator_stats . ' ' . $this->user->lang['TOPIC_UNAPPROVED'];
+				}
+				else if ($row['topic_posts_unapproved'])
+				{
+					$item_row['statistics'] .= ' ' . $this->separator_stats . ' ' . $this->user->lang['POSTS_UNAPPROVED'];
+				}
+			}
+		}
+	}
+}
diff --git a/phpBB/phpbb/feed/topics.php b/phpBB/phpbb/feed/topics.php
new file mode 100644
index 0000000000..e6416bc064
--- /dev/null
+++ b/phpBB/phpbb/feed/topics.php
@@ -0,0 +1,88 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* New Topics feed
+*
+* This will give you the last {$this->num_items} created topics
+* including the first post.
+*/
+class topics extends \phpbb\feed\topic_base
+{
+	function get_sql()
+	{
+		$forum_ids_read = $this->get_readable_forums();
+		if (empty($forum_ids_read))
+		{
+			return false;
+		}
+
+		$in_fid_ary = array_diff($forum_ids_read, $this->get_excluded_forums(), $this->get_passworded_forums());
+		if (empty($in_fid_ary))
+		{
+			return false;
+		}
+
+		// We really have to get the post ids first!
+		$sql = 'SELECT topic_first_post_id, topic_time
+			FROM ' . TOPICS_TABLE . '
+			WHERE  topic_moved_id = 0
+				AND ' . $this->content_visibility->get_forums_visibility_sql('topic', $in_fid_ary) . '
+			ORDER BY topic_time DESC';
+		$result = $this->db->sql_query_limit($sql, $this->num_items);
+
+		$post_ids = array();
+		while ($row = $this->db->sql_fetchrow($result))
+		{
+			$post_ids[] = (int) $row['topic_first_post_id'];
+		}
+		$this->db->sql_freeresult($result);
+
+		if (empty($post_ids))
+		{
+			return false;
+		}
+
+		parent::fetch_attachments($post_ids);
+
+		$this->sql = array(
+			'SELECT'	=> 'f.forum_id, f.forum_name,
+							t.topic_id, t.topic_title, t.topic_poster, t.topic_first_poster_name, t.topic_posts_approved, t.topic_posts_unapproved, t.topic_posts_softdeleted, t.topic_views, t.topic_time, t.topic_last_post_time,
+							p.post_id, p.post_time, p.post_edit_time, p.post_text, p.bbcode_bitfield, p.bbcode_uid, p.enable_bbcode, p.enable_smilies, p.enable_magic_url, p.post_attachment, t.topic_visibility',
+			'FROM'		=> array(
+				TOPICS_TABLE	=> 't',
+				POSTS_TABLE		=> 'p',
+			),
+			'LEFT_JOIN'	=> array(
+				array(
+					'FROM'	=> array(FORUMS_TABLE => 'f'),
+					'ON'	=> 'p.forum_id = f.forum_id',
+				),
+			),
+			'WHERE'		=> 'p.topic_id = t.topic_id
+							AND ' . $this->db->sql_in_set('p.post_id', $post_ids),
+			'ORDER_BY'	=> 'p.post_time DESC, p.post_id DESC',
+		);
+
+		return true;
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		parent::adjust_item($item_row, $row);
+
+		$item_row['title'] = (isset($row['forum_name']) && $row['forum_name'] !== '') ? $row['forum_name'] . ' ' . $this->separator . ' ' . $item_row['title'] : $item_row['title'];
+	}
+}
diff --git a/phpBB/phpbb/feed/topics_active.php b/phpBB/phpbb/feed/topics_active.php
new file mode 100644
index 0000000000..3b751f3233
--- /dev/null
+++ b/phpBB/phpbb/feed/topics_active.php
@@ -0,0 +1,133 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed;
+
+/**
+* Active Topics feed
+*
+* This will give you the last {$this->num_items} topics
+* with replies made withing the last {$this->sort_days} days
+* including the last post.
+*/
+class topics_active extends \phpbb\feed\topic_base
+{
+	var $sort_days = 7;
+
+	function set_keys()
+	{
+		parent::set_keys();
+
+		$this->set('author_id',	'topic_last_poster_id');
+		$this->set('creator',	'topic_last_poster_name');
+	}
+
+	function get_sql()
+	{
+		$forum_ids_read = $this->get_readable_forums();
+		if (empty($forum_ids_read))
+		{
+			return false;
+		}
+
+		$in_fid_ary = array_intersect($forum_ids_read, $this->get_forum_ids());
+		$in_fid_ary = array_diff($in_fid_ary, $this->get_passworded_forums());
+		if (empty($in_fid_ary))
+		{
+			return false;
+		}
+
+		// Search for topics in last X days
+		$last_post_time_sql = ($this->sort_days) ? ' AND topic_last_post_time > ' . (time() - ($this->sort_days * 24 * 3600)) : '';
+
+		// We really have to get the post ids first!
+		$sql = 'SELECT topic_last_post_id, topic_last_post_time
+			FROM ' . TOPICS_TABLE . '
+			WHERE topic_moved_id = 0
+				AND ' . $this->content_visibility->get_forums_visibility_sql('topic', $in_fid_ary) . '
+				' . $last_post_time_sql . '
+			ORDER BY topic_last_post_time DESC, topic_last_post_id DESC';
+		$result = $this->db->sql_query_limit($sql, $this->num_items);
+
+		$post_ids = array();
+		while ($row = $this->db->sql_fetchrow($result))
+		{
+			$post_ids[] = (int) $row['topic_last_post_id'];
+		}
+		$this->db->sql_freeresult($result);
+
+		if (empty($post_ids))
+		{
+			return false;
+		}
+
+		parent::fetch_attachments($post_ids);
+
+		$this->sql = array(
+			'SELECT'	=> 'f.forum_id, f.forum_name,
+							t.topic_id, t.topic_title, t.topic_posts_approved, t.topic_posts_unapproved, t.topic_posts_softdeleted, t.topic_views,
+							t.topic_last_poster_id, t.topic_last_poster_name, t.topic_last_post_time,
+							p.post_id, p.post_time, p.post_edit_time, p.post_text, p.bbcode_bitfield, p.bbcode_uid, p.enable_bbcode, p.enable_smilies, p.enable_magic_url, p.post_attachment, t.topic_visibility',
+			'FROM'		=> array(
+				TOPICS_TABLE	=> 't',
+				POSTS_TABLE		=> 'p',
+			),
+			'LEFT_JOIN'	=> array(
+				array(
+					'FROM'	=> array(FORUMS_TABLE => 'f'),
+					'ON'	=> 'p.forum_id = f.forum_id',
+				),
+			),
+			'WHERE'		=> 'p.topic_id = t.topic_id
+							AND ' . $this->db->sql_in_set('p.post_id', $post_ids),
+			'ORDER_BY'	=> 'p.post_time DESC, p.post_id DESC',
+		);
+
+		return true;
+	}
+
+	function get_forum_ids()
+	{
+		static $forum_ids;
+
+		$cache_name	= 'feed_topic_active_forum_ids';
+
+		if (!isset($forum_ids) && ($forum_ids = $this->cache->get('_' . $cache_name)) === false)
+		{
+			$sql = 'SELECT forum_id
+				FROM ' . FORUMS_TABLE . '
+				WHERE forum_type = ' . FORUM_POST . '
+					AND ' . $this->db->sql_bit_and('forum_options', FORUM_OPTION_FEED_EXCLUDE, '= 0') . '
+					AND ' . $this->db->sql_bit_and('forum_flags', log(FORUM_FLAG_ACTIVE_TOPICS, 2), '<> 0');
+			$result = $this->db->sql_query($sql);
+
+			$forum_ids = array();
+			while ($forum_id = (int) $this->db->sql_fetchfield('forum_id'))
+			{
+				$forum_ids[$forum_id] = $forum_id;
+			}
+			$this->db->sql_freeresult($result);
+
+			$this->cache->put('_' . $cache_name, $forum_ids, 180);
+		}
+
+		return $forum_ids;
+	}
+
+	function adjust_item(&$item_row, &$row)
+	{
+		parent::adjust_item($item_row, $row);
+
+		$item_row['title'] = (isset($row['forum_name']) && $row['forum_name'] !== '') ? $row['forum_name'] . ' ' . $this->separator . ' ' . $item_row['title'] : $item_row['title'];
+	}
+}