Merge pull request #13390 from annando/channel

Channels are a new way to see different content
2023-09-03 11:08:47 -04:00 · 2023-09-03 11:08:47 -04:00 · a275f0a719
commit a275f0a719
parent 5c26ba5f5d 7220027332
33 changed files with 1296 additions and 354 deletions
--- a/database.sql
+++ b/database.sql
@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2023.09-dev (Giant Rhubarb)
-- DB_UPDATE_VERSION 1530
+-- DB_UPDATE_VERSION 1531
 -- ------------------------------------------


@ -1300,6 +1300,25 @@ CREATE TABLE IF NOT EXISTS `post-delivery-data` (
 	FOREIGN KEY (`uri-id`) REFERENCES `item-uri` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Delivery data for items';

+--
+-- TABLE post-engagement
+--
+CREATE TABLE IF NOT EXISTS `post-engagement` (
+	`uri-id` int unsigned NOT NULL COMMENT 'Id of the item-uri table entry that contains the item uri',
+	`owner-id` int unsigned NOT NULL DEFAULT 0 COMMENT 'Item owner',
+	`contact-type` tinyint NOT NULL DEFAULT 0 COMMENT 'Person, organisation, news, community, relay',
+	`media-type` tinyint NOT NULL DEFAULT 0 COMMENT 'Type of media in a bit array (1 = image, 2 = video, 4 = audio',
+	`language` varbinary(128) COMMENT 'Language information about this post',
+	`created` datetime COMMENT '',
+	`comments` mediumint unsigned COMMENT 'Number of comments',
+	`activities` mediumint unsigned COMMENT 'Number of activities (like, dislike, ...)',
+	 PRIMARY KEY(`uri-id`),
+	 INDEX `owner-id` (`owner-id`),
+	 INDEX `created` (`created`),
+	FOREIGN KEY (`uri-id`) REFERENCES `item-uri` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE,
+	FOREIGN KEY (`owner-id`) REFERENCES `contact` (`id`) ON UPDATE RESTRICT ON DELETE RESTRICT
+) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Engagement data per post';
+
 --
 -- TABLE post-history
 --
--- a/doc/Accesskeys.md
+++ b/doc/Accesskeys.md
@ -16,6 +16,7 @@ General
 -------
 * p - Profile
 * n - Network
+* l - Channel
 * c - Community
 * s - Search
 * a - Admin
@ -28,6 +29,17 @@ General
 * l - Local community
 * g - Global community

+../channel
+--------
+* y - for you
+* f - followers
+* h - what's hot
+* i - Images
+* v - Videos
+* d - Audio
+* g - Posts in your language
+* o - Hot posts in your language
+
 ../profile
 --------
 * m - Status Messages and Posts
--- a/doc/database.md
+++ b/doc/database.md
@ -61,6 +61,7 @@ Database Tables
 | [post-content](help/database/db_post-content) | Content for all posts |
 | [post-delivery](help/database/db_post-delivery) | Delivery data for posts for the batch processing |
 | [post-delivery-data](help/database/db_post-delivery-data) | Delivery data for items |
+| [post-engagement](help/database/db_post-engagement) | Engagement data per post |
 | [post-history](help/database/db_post-history) | Post history |
 | [post-link](help/database/db_post-link) | Post related external links |
 | [post-media](help/database/db_post-media) | Attached media |
--- a/doc/database/db_post-engagement.md
+++ b/doc/database/db_post-engagement.md
@ -0,0 +1,37 @@
+Table post-engagement
+===========
+
+Engagement data per post
+
+Fields
+------
+
+| Field        | Description                                                   | Type               | Null | Key | Default | Extra |
+| ------------ | ------------------------------------------------------------- | ------------------ | ---- | --- | ------- | ----- |
+| uri-id       | Id of the item-uri table entry that contains the item uri     | int unsigned       | NO   | PRI | NULL    |       |
+| owner-id     | Item owner                                                    | int unsigned       | NO   |     | 0       |       |
+| contact-type | Person, organisation, news, community, relay                  | tinyint            | NO   |     | 0       |       |
+| media-type   | Type of media in a bit array (1 = image, 2 = video, 4 = audio | tinyint            | NO   |     | 0       |       |
+| language     | Language information about this post                          | varbinary(128)     | YES  |     | NULL    |       |
+| created      |                                                               | datetime           | YES  |     | NULL    |       |
+| comments     | Number of comments                                            | mediumint unsigned | YES  |     | NULL    |       |
+| activities   | Number of activities (like, dislike, ...)                     | mediumint unsigned | YES  |     | NULL    |       |
+
+Indexes
+------------
+
+| Name     | Fields   |
+| -------- | -------- |
+| PRIMARY  | uri-id   |
+| owner-id | owner-id |
+| created  | created  |
+
+Foreign Keys
+------------
+
+| Field | Target Table | Target Field |
+|-------|--------------|--------------|
+| uri-id | [item-uri](help/database/db_item-uri) | id |
+| owner-id | [contact](help/database/db_contact) | id |
+
+Return to [database documentation](help/database)
--- a/doc/database/db_user-gserver.md
+++ b/doc/database/db_user-gserver.md
@ -8,8 +8,8 @@ Fields

 | Field   | Description                              | Type               | Null | Key | Default | Extra |
 | ------- | ---------------------------------------- | ------------------ | ---- | --- | ------- | ----- |
-| uid     | Owner User id                            | mediumint unsigned | NO   |     | 0       |       |
-| gsid    | Gserver id                               | int unsigned       | NO   |     | 0       |       |
+| uid     | Owner User id                            | mediumint unsigned | NO   | PRI | 0       |       |
+| gsid    | Gserver id                               | int unsigned       | NO   | PRI | 0       |       |
 | ignored | server accounts are ignored for the user | boolean            | NO   |     | 0       |       |

 Indexes
--- a/src/Content/Conversation.php
+++ b/src/Content/Conversation.php
@ -57,6 +57,7 @@ use Psr\Log\LoggerInterface;

 class Conversation
 {
+	const MODE_CHANNEL       = 'channel';
 	const MODE_COMMUNITY     = 'community';
 	const MODE_CONTACTS      = 'contacts';
 	const MODE_CONTACT_POSTS = 'contact-posts';
@ -530,6 +531,17 @@ class Conversation
 					. "<script> var profile_uid = " . ($this->session->getLocalUserId() ?: 0) . ";"
 					. "</script>";
 			}
+		} elseif ($mode === self::MODE_CHANNEL) {
+			$items = $this->addChildren($items, true, $order, $uid, $mode, $ignoredGsids);
+
+			if (!$update) {
+				$live_update_div = '<div id="live-channel"></div>' . "\r\n"
+					. "<script> var profile_uid = -1; var netargs = '" . substr($this->args->getCommand(), 10)
+					. '?f='
+					. (!empty($_GET['no_sharer']) ? '&no_sharer=' . rawurlencode($_GET['no_sharer']) : '')
+					. (!empty($_GET['accounttype']) ? '&accounttype=' . rawurlencode($_GET['accounttype']) : '')
+					. "'; </script>\r\n";
+			}
 		} elseif ($mode === self::MODE_COMMUNITY) {
 			$items = $this->addChildren($items, true, $order, $uid, $mode, $ignoredGsids);

@ -621,7 +633,7 @@ class Conversation
 				unset($conv_responses['dislike']);
 			}

-			if (in_array($mode, [self::MODE_COMMUNITY, self::MODE_CONTACTS, self::MODE_PROFILE])) {
+			if (in_array($mode, [self::MODE_CHANNEL, self::MODE_COMMUNITY, self::MODE_CONTACTS, self::MODE_PROFILE])) {
 				$writable = true;
 			} else {
 				$writable = $items[0]['writable'] || ($items[0]['uid'] == 0) && in_array($items[0]['network'], Protocol::FEDERATED);
@ -1009,7 +1021,7 @@ class Conversation
 			$items[$key]['user-collapsed-owner']  = !$always_display && in_array($row['owner-id'], $collapses);

 			if (
-				in_array($mode, [self::MODE_COMMUNITY, self::MODE_NETWORK]) &&
+				in_array($mode, [self::MODE_CHANNEL, self::MODE_COMMUNITY, self::MODE_NETWORK]) &&
 				(in_array($row['author-id'], $blocks) || in_array($row['owner-id'], $blocks) || in_array($row['author-id'], $ignores) || in_array($row['owner-id'], $ignores))
 			) {
 				unset($items[$key]);
--- a/src/Content/Nav.php
+++ b/src/Content/Nav.php
@ -42,6 +42,7 @@ class Nav
 	private static $selected = [
 		'global'    => null,
 		'community' => null,
+		'channel'   => null,
 		'network'   => null,
 		'home'      => null,
 		'profiles'  => null,
@ -199,6 +200,7 @@ class Nav
 			'moderation'    => null,
 			'apps'          => null,
 			'community'     => null,
+			'channel'       => null,
 			'home'          => null,
 			'calendar'      => null,
 			'login'         => null,
@ -287,6 +289,8 @@ class Nav
 			$nav['community'] = ['community', $this->l10n->t('Community'), '', $this->l10n->t('Conversations on this and other servers')];
 		}

+		$nav['channel'] = ['channel', $this->l10n->t('Channels'), '', $this->l10n->t('Current posts, filtered by several rules')];
+
 		if ($this->session->getLocalUserId()) {
 			$nav['calendar'] = ['calendar', $this->l10n->t('Calendar'), '', $this->l10n->t('Calendar')];
 		}
--- a/src/Model/Contact.php
+++ b/src/Model/Contact.php
@ -533,6 +533,17 @@ class Contact
 		return self::isSharing($cid, $uid, $strict);
 	}

+	/**
+	 * Checks if the provided public contact id has got followers on this system
+	 *
+	 * @param integer $cid
+	 * @return boolean
+	 */
+	public static function hasFollowers(int $cid): bool
+	{
+		return DBA::exists('account-user-view', ["`pid` = ? AND `uid` != ? AND `rel` IN (?, ?)", $cid, 0, self::SHARING, self::FRIEND]);
+	}
+
 	/**
 	 * Get the basepath for a given contact link
 	 *
--- a/src/Model/Contact/Relation.php
+++ b/src/Model/Contact/Relation.php
@ -781,7 +781,7 @@ class Relation
 	 */
 	public static function calculateInteractionScore(int $uid)
 	{
-		$days = DI::config()->get('system', 'interaction_score_days');
+		$days = DI::config()->get('channel', 'interaction_score_days');
 		$contact_id = Contact::getPublicIdByUserId($uid);

 		Logger::debug('Calculation - start', ['uid' => $uid, 'cid' => $contact_id, 'days' => $days]);
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@ -1405,6 +1405,8 @@ class Item
 			self::updateDisplayCache($posted_item['uri-id']);
 		}

+		Post\Engagement::storeFromItem($posted_item);
+
 		return $post_user_id;
 	}

--- a/src/Model/Post/Engagement.php
+++ b/src/Model/Post/Engagement.php
@ -0,0 +1,134 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2023, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Model\Post;
+
+use Friendica\Core\Logger;
+use Friendica\Core\Protocol;
+use Friendica\Database\Database;
+use Friendica\Database\DBA;
+use Friendica\DI;
+use Friendica\Model\Contact;
+use Friendica\Model\Item;
+use Friendica\Model\Post;
+use Friendica\Model\Verb;
+use Friendica\Protocol\Activity;
+use Friendica\Util\DateTimeFormat;
+
+// Channel
+
+class Engagement
+{
+	/**
+	 * Store engagement data from an item array
+	 *
+	 * @param array $item
+	 * @return void
+	 */
+	public static function storeFromItem(array $item)
+	{
+		if (!in_array($item['network'], Protocol::FEDERATED)) {
+			Logger::debug('No federated network', ['uri-id' => $item['uri-id'], 'parent-uri-id' => $item['parent-uri-id'], 'network' => $item['network']]);
+			return;
+		}
+
+		if (($item['uid'] != 0) && ($item['gravity'] == Item::GRAVITY_COMMENT)) {
+			Logger::debug('Non public comments are not stored', ['uri-id' => $item['uri-id'], 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
+			return;
+		}
+
+		if (in_array($item['verb'], [Activity::FOLLOW, Activity::VIEW, Activity::READ])) {
+			Logger::debug('Technical activities are not stored', ['uri-id' => $item['uri-id'], 'parent-uri-id' => $item['parent-uri-id'], 'verb' => $item['verb']]);
+			return;
+		}
+
+		$parent = Post::selectFirst(['created', 'owner-id', 'uid', 'private', 'contact-contact-type', 'language'], ['uri-id' => $item['parent-uri-id']]);
+		if ($parent['private'] != Item::PUBLIC) {
+			Logger::debug('Non public posts are not stored', ['uri-id' => $item['uri-id'], 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $parent['uid'], 'private' => $parent['private']]);
+			return;
+		}
+
+		if ($parent['created'] < DateTimeFormat::utc('now - ' . DI::config()->get('channel', 'engagement_hours') . ' hour')) {
+			Logger::debug('Post is too old', ['uri-id' => $item['uri-id'], 'parent-uri-id' => $item['parent-uri-id'], 'created' => $parent['created']]);
+			return;
+		}
+
+		$store = ($item['gravity'] != Item::GRAVITY_PARENT);
+
+		if (!$store) {
+			$store = Contact::hasFollowers($parent['owner-id']);
+		}
+
+		$mediatype = self::getMediaType($item['parent-uri-id']);
+
+		if (!$store) {
+			$mediatype = !empty($mediatype);
+		}
+
+		$engagement = [
+			'uri-id'       => $item['parent-uri-id'],
+			'owner-id'     => $parent['owner-id'],
+			'contact-type' => $parent['contact-contact-type'],
+			'media-type'   => $mediatype,
+			'language'     => $parent['language'],
+			'created'      => $parent['created'],
+			'comments'     => DBA::count('post', ['parent-uri-id' => $item['parent-uri-id'], 'gravity' => Item::GRAVITY_COMMENT]),
+			'activities'   => DBA::count('post', [
+				"`parent-uri-id` = ? AND `gravity` = ? AND NOT `vid` IN (?, ?, ?)",
+				$item['parent-uri-id'], Item::GRAVITY_ACTIVITY,
+				Verb::getID(Activity::FOLLOW), Verb::getID(Activity::VIEW), Verb::getID(Activity::READ)
+			])
+		];
+		if (!$store && ($engagement['comments'] == 0) && ($engagement['activities'] == 0)) {
+			Logger::debug('No media, follower, comments or activities. Engagement not stored', ['fields' => $engagement]);
+			return;
+		}
+		$ret = DBA::insert('post-engagement', $engagement, Database::INSERT_UPDATE);
+		Logger::debug('Engagement stored', ['fields' => $engagement, 'ret' => $ret]);
+	}
+
+	private static function getMediaType(int $uri_id): int
+	{
+		$media = Post\Media::getByURIId($uri_id);
+		$type  = 0;
+		foreach ($media as $entry) {
+			if ($entry['type'] == Post\Media::IMAGE) {
+				$type = $type | 1;
+			} elseif ($entry['type'] == Post\Media::VIDEO) {
+				$type = $type | 2;
+			} elseif ($entry['type'] == Post\Media::AUDIO) {
+				$type = $type | 4;
+			}
+		}
+		return $type;
+	}
+
+	/**
+	 * Expire old engagement data
+	 *
+	 * @return void
+	 */
+	public static function expire()
+	{
+		DBA::delete('post-engagement', ["`created` < ?", DateTimeFormat::utc('now - ' . DI::config()->get('channel', 'engagement_hours') . ' hour')]);
+		Logger::notice('Cleared expired engagements', ['rows' => DBA::affectedRows()]);
+	}
+}
--- a/src/Model/User.php
+++ b/src/Model/User.php
@ -183,7 +183,7 @@ class User
 		$system['dob'] = '0000-00-00';

 		// Ensure that the user contains data
-		$user = DBA::selectFirst('user', ['prvkey', 'guid'], ['uid' => 0]);
+		$user = DBA::selectFirst('user', ['prvkey', 'guid', 'language'], ['uid' => 0]);
 		if (empty($user['prvkey']) || empty($user['guid'])) {
 			$fields = [
 				'username' => $system['name'],
@ -203,7 +203,8 @@ class User

 			$system['guid'] = $fields['guid'];
 		} else {
-			$system['guid'] = $user['guid'];
+			$system['guid']     = $user['guid'];
+			$system['language'] = $user['language'];
 		}

 		return $system;
@ -532,6 +533,28 @@ class User
 		return $default_circle;
 	}

+/**
+ * Fetch the language code from the given user. If the code is invalid, return the system language
+ *
+ * @param integer $uid   User-Id
+ * @param boolean $short If true, return the short form g.g. "en", otherwise the long form e.g. "en-gb"
+ * @return string
+ */
+	public static function getLanguageCode(int $uid, bool $short): string
+	{
+		$owner = self::getOwnerDataById($uid);
+		$languages = DI::l10n()->getAvailableLanguages();
+		if (in_array($owner['language'], array_keys($languages))) {
+			$language = $owner['language'];
+		} else {
+			$language = DI::config()->get('system', 'language');
+		}
+		if ($short) {
+			return substr($language, 0, 2);
+		}
+		return $language;
+	}
+
 	/**
 	 * Authenticate a user with a clear text password
 	 *
--- a/src/Module/Conversation/Channel.php
+++ b/src/Module/Conversation/Channel.php
@ -0,0 +1,474 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2023, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Module\Conversation;
+
+use Friendica\App;
+use Friendica\App\Mode;
+use Friendica\BaseModule;
+use Friendica\Content\BoundariesPager;
+use Friendica\Content\Conversation;
+use Friendica\Content\Feature;
+use Friendica\Content\Nav;
+use Friendica\Content\Text\HTML;
+use Friendica\Content\Widget;
+use Friendica\Content\Widget\TrendingTags;
+use Friendica\Core\Cache\Capability\ICanCache;
+use Friendica\Core\Cache\Enum\Duration;
+use Friendica\Core\Config\Capability\IManageConfigValues;
+use Friendica\Core\L10n;
+use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
+use Friendica\Core\Renderer;
+use Friendica\Core\Session\Capability\IHandleUserSessions;
+use Friendica\Model\Contact;
+use Friendica\Model\Post;
+use Friendica\Model\User;
+use Friendica\Module\Security\Login;
+use Friendica\Network\HTTPException;
+use Friendica\Core\Session\Model\UserSession;
+use Friendica\Database\Database;
+use Friendica\Model\Item;
+use Friendica\Module\Response;
+use Friendica\Navigation\SystemMessages;
+use Friendica\Util\Profiler;
+use Psr\Log\LoggerInterface;
+
+class Channel extends BaseModule
+{
+	const WHATSHOT  = 'whatshot';
+	const FORYOU    = 'foryou';
+	const FOLLOWERS = 'followers';
+	const IMAGE     = 'image';
+	const VIDEO     = 'video';
+	const AUDIO     = 'audio';
+	const LANGUAGE  = 'language';
+
+	protected static $content;
+	protected static $accountTypeString;
+	protected static $accountType;
+	protected static $itemsPerPage;
+	protected static $min_id;
+	protected static $max_id;
+	protected static $item_id;
+
+	/** @var UserSession */
+	protected $session;
+	/** @var ICanCache */
+	protected $cache;
+	/** @var IManageConfigValues The config */
+	protected $config;
+	/** @var SystemMessages */
+	protected $systemMessages;
+	/** @var App\Page */
+	protected $page;
+	/** @var Conversation */
+	protected $conversation;
+	/** @var App\Mode $mode */
+	protected $mode;
+	/** @var IManagePersonalConfigValues */
+	protected $pConfig;
+	/** @var Database */
+	protected $database;
+
+
+	public function __construct(SystemMessages $systemMessages, Database $database, IManagePersonalConfigValues $pConfig, Mode $mode, Conversation $conversation, App\Page $page, IManageConfigValues $config, ICanCache $cache, IHandleUserSessions $session, L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server, array $parameters = [])
+	{
+		parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
+
+		$this->systemMessages = $systemMessages;
+		$this->database       = $database;
+		$this->pConfig        = $pConfig;
+		$this->mode           = $mode;
+		$this->conversation   = $conversation;
+		$this->page           = $page;
+		$this->config         = $config;
+		$this->cache          = $cache;
+		$this->session        = $session;
+	}
+
+	protected function content(array $request = []): string
+	{
+		if (!$this->session->getLocalUserId()) {
+			return Login::form();
+		}
+
+		$this->parseRequest($request);
+
+		$t = Renderer::getMarkupTemplate("community.tpl");
+		$o = Renderer::replaceMacros($t, [
+			'$content' => '',
+			'$header'  => '',
+		]);
+
+		if ($this->pConfig->get($this->session->getLocalUserId(), 'system', 'infinite_scroll')) {
+			$tpl = Renderer::getMarkupTemplate('infinite_scroll_head.tpl');
+			$o .= Renderer::replaceMacros($tpl, ['$reload_uri' => $this->args->getQueryString()]);
+		}
+
+		if (empty($request['mode']) || ($request['mode'] != 'raw')) {
+			$tabs = [];
+
+			$tabs[] = [
+				'label'     => $this->l10n->t('For you'),
+				'url'       => 'channel/' . self::FORYOU,
+				'sel'       => self::$content == self::FORYOU ? 'active' : '',
+				'title'     => $this->l10n->t('Posts from contacts you interact with and who interact with you'),
+				'id'        => 'channel-foryou-tab',
+				'accesskey' => 'y'
+			];
+
+			$tabs[] = [
+				'label'     => $this->l10n->t('What\'s Hot'),
+				'url'       => 'channel/' . self::WHATSHOT,
+				'sel'       => self::$content == self::WHATSHOT ? 'active' : '',
+				'title'     => $this->l10n->t('Posts with a lot of interactions'),
+				'id'        => 'channel-whatshot-tab',
+				'accesskey' => 'h'
+			];
+
+			$language  = User::getLanguageCode($this->session->getLocalUserId(), false);
+			$languages = $this->l10n->getAvailableLanguages();
+
+			$tabs[] = [
+				'label'     => $languages[$language],
+				'url'       => 'channel/' . self::LANGUAGE,
+				'sel'       => self::$content == self::LANGUAGE ? 'active' : '',
+				'title'     => $this->l10n->t('Posts in %s', $languages[$language]),
+				'id'        => 'channel-language-tab',
+				'accesskey' => 'g'
+			];
+
+			$tabs[] = [
+				'label'     => $this->l10n->t('Followers'),
+				'url'       => 'channel/' . self::FOLLOWERS,
+				'sel'       => self::$content == self::FOLLOWERS ? 'active' : '',
+				'title'     => $this->l10n->t('Posts from your followers that you don\'t follow'),
+				'id'        => 'channel-followers-tab',
+				'accesskey' => 'f'
+			];
+
+			$tabs[] = [
+				'label'     => $this->l10n->t('Images'),
+				'url'       => 'channel/' . self::IMAGE,
+				'sel'       => self::$content == self::IMAGE ? 'active' : '',
+				'title'     => $this->l10n->t('Posts with images'),
+				'id'        => 'channel-image-tab',
+				'accesskey' => 'i'
+			];
+
+			$tabs[] = [
+				'label'     => $this->l10n->t('Audio'),
+				'url'       => 'channel/' . self::AUDIO,
+				'sel'       => self::$content == self::AUDIO ? 'active' : '',
+				'title'     => $this->l10n->t('Posts with audio'),
+				'id'        => 'channel-audio-tab',
+				'accesskey' => 'd'
+			];
+
+			$tabs[] = [
+				'label'     => $this->l10n->t('Videos'),
+				'url'       => 'channel/' . self::VIDEO,
+				'sel'       => self::$content == self::VIDEO ? 'active' : '',
+				'title'     => $this->l10n->t('Posts with videos'),
+				'id'        => 'channel-video-tab',
+				'accesskey' => 'v'
+			];
+
+			$tab_tpl = Renderer::getMarkupTemplate('common_tabs.tpl');
+			$o .= Renderer::replaceMacros($tab_tpl, ['$tabs' => $tabs]);
+
+			Nav::setSelected('channel');
+
+			$this->page['aside'] .= Widget::accountTypes('channel/' . self::$content, self::$accountTypeString);
+
+			if (!in_array(self::$content, [self::FOLLOWERS, self::FORYOU]) && $this->config->get('system', 'community_no_sharer')) {
+				$path = self::$content;
+				if (!empty($this->parameters['accounttype'])) {
+					$path .= '/' . $this->parameters['accounttype'];
+				}
+				$query_parameters = [];
+
+				if (!empty($request['min_id'])) {
+					$query_parameters['min_id'] = $request['min_id'];
+				}
+				if (!empty($request['max_id'])) {
+					$query_parameters['max_id'] = $request['max_id'];
+				}
+				if (!empty($request['last_created'])) {
+					$query_parameters['max_id'] = $request['last_created'];
+				}
+
+				$path_all       = $path . (!empty($query_parameters) ? '?' . http_build_query($query_parameters) : '');
+				$path_no_sharer = $path . '?' . http_build_query(array_merge($query_parameters, ['no_sharer' => true]));
+				$this->page['aside'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('widget/community_sharer.tpl'), [
+					'$title'           => $this->l10n->t('Own Contacts'),
+					'$path_all'        => $path_all,
+					'$path_no_sharer'  => $path_no_sharer,
+					'$no_sharer'       => !empty($request['no_sharer']),
+					'$all'             => $this->l10n->t('Include'),
+					'$no_sharer_label' => $this->l10n->t('Hide'),
+					'$base'            => 'channel',
+				]);
+			}
+
+			if (Feature::isEnabled($this->session->getLocalUserId(), 'trending_tags')) {
+				$this->page['aside'] .= TrendingTags::getHTML(self::$content);
+			}
+
+			// We need the editor here to be able to reshare an item.
+			$o .= $this->conversation->statusEditor([], 0, true);
+		}
+
+		$items = $this->getItems($request);
+
+		if (!$this->database->isResult($items)) {
+			$this->systemMessages->addNotice($this->l10n->t('No results.'));
+			return $o;
+		}
+
+		$o .= $this->conversation->render($items, Conversation::MODE_CHANNEL, false, false, 'created', $this->session->getLocalUserId());
+
+		$pager = new BoundariesPager(
+			$this->l10n,
+			$this->args->getQueryString(),
+			$items[0]['created'],
+			$items[count($items) - 1]['created'],
+			self::$itemsPerPage
+		);
+
+		if ($this->pConfig->get($this->session->getLocalUserId(), 'system', 'infinite_scroll')) {
+			$o .= HTML::scrollLoader();
+		} else {
+			$o .= $pager->renderMinimal(count($items));
+		}
+
+		return $o;
+	}
+
+	/**
+	 * Computes module parameters from the request and local configuration
+	 *
+	 * @throws HTTPException\BadRequestException
+	 * @throws HTTPException\ForbiddenException
+	 */
+	protected function parseRequest(array $request)
+	{
+		self::$accountTypeString = $request['accounttype'] ?? $this->parameters['accounttype'] ?? '';
+		self::$accountType       = User::getAccountTypeByString(self::$accountTypeString);
+
+		self::$content = $this->parameters['content'] ?? '';
+		if (!self::$content) {
+			self::$content = self::FORYOU;
+		}
+
+		if (!in_array(self::$content, [self::WHATSHOT, self::FORYOU, self::FOLLOWERS, self::IMAGE, self::VIDEO, self::AUDIO, self::LANGUAGE])) {
+			throw new HTTPException\BadRequestException($this->l10n->t('Channel not available.'));
+		}
+
+		if ($this->mode->isMobile()) {
+			self::$itemsPerPage = $this->pConfig->get(
+				$this->session->getLocalUserId(),
+				'system',
+				'itemspage_mobile_network',
+				$this->config->get('system', 'itemspage_network_mobile')
+			);
+		} else {
+			self::$itemsPerPage = $this->pConfig->get(
+				$this->session->getLocalUserId(),
+				'system',
+				'itemspage_network',
+				$this->config->get('system', 'itemspage_network')
+			);
+		}
+
+		if (!empty($request['item'])) {
+			$item          = Post::selectFirst(['parent-uri-id'], ['id' => $request['item']]);
+			self::$item_id = $item['parent-uri-id'] ?? 0;
+		} else {
+			self::$item_id = 0;
+		}
+
+		self::$min_id = $request['min_id']       ?? null;
+		self::$max_id = $request['last_created'] ?? $request['max_id'] ?? null;
+	}
+
+	/**
+	 * Computes the displayed items.
+	 *
+	 * Community pages have a restriction on how many successive posts by the same author can show on any given page,
+	 * so we may have to retrieve more content beyond the first query
+	 *
+	 * @return array
+	 * @throws \Exception
+	 */
+	protected function getItems(array $request)
+	{
+		if (self::$content == self::WHATSHOT) {
+			if (!is_null(self::$accountType)) {
+				$condition = ["(`comments` >= ? OR `activities` >= ?) AND `contact-type` = ?", $this->getMedianComments(4), $this->getMedianActivities(4), self::$accountType];
+			} else {
+				$condition = ["(`comments` >= ? OR `activities` >= ?) AND `contact-type` != ?", $this->getMedianComments(4), $this->getMedianActivities(4), Contact::TYPE_COMMUNITY];
+			}
+		} elseif (self::$content == self::FORYOU) {
+			$cid = Contact::getPublicIdByUserId($this->session->getLocalUserId());
+
+			$condition = ["(`owner-id` IN (SELECT `relation-cid` FROM `contact-relation` WHERE `cid` = ? AND `thread-score` > ?) OR
+				((`comments` >= ? OR `activities` >= ?) AND `owner-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` IN (?, ?))) OR
+				( `owner-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` IN (?, ?) AND `notify_new_posts`)))",
+				$cid, $this->getMedianThreadScore($cid, 4), $this->getMedianComments(4), $this->getMedianActivities(4), $this->session->getLocalUserId(), Contact::FRIEND, Contact::SHARING,
+				$this->session->getLocalUserId(), Contact::FRIEND, Contact::SHARING];
+		} elseif (self::$content == self::FOLLOWERS) {
+			$condition = ["`owner-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` = ?)", $this->session->getLocalUserId(), Contact::FOLLOWER];
+		} elseif (self::$content == self::IMAGE) {
+			$condition = ["`media-type` & ?", 1];
+		} elseif (self::$content == self::VIDEO) {
+			$condition = ["`media-type` & ?", 2];
+		} elseif (self::$content == self::AUDIO) {
+			$condition = ["`media-type` & ?", 4];
+		} elseif (self::$content == self::LANGUAGE) {
+			$condition = ["JSON_EXTRACT(JSON_KEYS(language), '$[0]') = ?", User::getLanguageCode($this->session->getLocalUserId(), true)];
+		}
+
+		if (self::$content != self::LANGUAGE) {
+			$condition = $this->addLanguageCondition($condition);
+		}
+
+		$condition[0] .= " AND NOT EXISTS(SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND `cid` = `post-engagement`.`owner-id` AND (`ignored` OR `blocked` OR `collapsed`))";
+		$condition[] = $this->session->getLocalUserId();
+
+		if ((self::$content != self::WHATSHOT) && !is_null(self::$accountType)) {
+			$condition[0] .= " AND `contact-type` = ?";
+			$condition[] = self::$accountType;
+		}
+
+		$params = ['order' => ['created' => true], 'limit' => self::$itemsPerPage];
+
+		if (!empty(self::$item_id)) {
+			$condition[0] .= " AND `uri-id` = ?";
+			$condition[] = self::$item_id;
+		} else {
+			if (!empty($request['no_sharer'])) {
+				$condition[0] .= " AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uid` = ? AND `post-user`.`uri-id` = `post-engagement`.`uri-id`)";
+				$condition[] = $this->session->getLocalUserId();
+			}
+
+			if (isset(self::$max_id)) {
+				$condition[0] .= " AND `created` < ?";
+				$condition[] = self::$max_id;
+			}
+
+			if (isset(self::$min_id)) {
+				$condition[0] .= " AND `created` > ?";
+				$condition[] = self::$min_id;
+
+				// Previous page case: we want the items closest to min_id but for that we need to reverse the query order
+				if (!isset(self::$max_id)) {
+					$params['order']['created'] = false;
+				}
+			}
+		}
+
+		$items = $this->database->selectToArray('post-engagement', ['uri-id', 'created'], $condition, $params);
+		if (empty($items)) {
+			return [];
+		}
+
+		// Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
+		if (empty(self::$item_id) && isset(self::$min_id) && !isset(self::$max_id)) {
+			$items = array_reverse($items);
+		}
+
+		Item::update(['unseen' => false], ['unseen' => true, 'uid' => $this->session->getLocalUserId(), 'uri-id' => array_column($items, 'uri-id')]);
+
+		return $items;
+	}
+
+	private function addLanguageCondition(array $condition): array
+	{
+		$conditions = [];
+		$languages  = $this->pConfig->get($this->session->getLocalUserId(), 'channel', 'languages', [User::getLanguageCode($this->session->getLocalUserId(), false)]);
+		foreach ($languages as $language) {
+			$conditions[] = "JSON_EXTRACT(JSON_KEYS(language), '$[0]') = ?";
+			$condition[]  = substr($language, 0, 2);
+		}
+		if (!empty($conditions)) {
+			$condition[0] .= " AND (`language` IS NULL OR " . implode(' OR ', $conditions) . ")";
+		}
+		return $condition;
+	}
+
+	private function getMedianComments(int $divider): int
+	{
+		$cache_key = 'Channel:getMedianComments:' . $divider;
+		$comments  = $this->cache->get($cache_key);
+		if (!empty($comments)) {
+			return $comments;
+		}
+
+		$limit    = $this->database->count('post-engagement', ["`contact-type` != ? AND `comments` > ?", Contact::TYPE_COMMUNITY, 0]) / $divider;
+		$post     = $this->database->selectToArray('post-engagement', ['comments'], ["`contact-type` != ?", Contact::TYPE_COMMUNITY], ['order' => ['comments' => true], 'limit' => [$limit, 1]]);
+		$comments = $post[0]['comments'] ?? 0;
+		if (empty($comments)) {
+			return 0;
+		}
+
+		$this->cache->set($cache_key, $comments, Duration::HOUR);
+		return $comments;
+	}
+
+	private function getMedianActivities(int $divider): int
+	{
+		$cache_key  = 'Channel:getMedianActivities:' . $divider;
+		$activities = $this->cache->get($cache_key);
+		if (!empty($activities)) {
+			return $activities;
+		}
+
+		$limit      = $this->database->count('post-engagement', ["`contact-type` != ? AND `activities` > ?", Contact::TYPE_COMMUNITY, 0]) / $divider;
+		$post       = $this->database->selectToArray('post-engagement', ['activities'], ["`contact-type` != ?", Contact::TYPE_COMMUNITY], ['order' => ['activities' => true], 'limit' => [$limit, 1]]);
+		$activities = $post[0]['activities'] ?? 0;
+		if (empty($activities)) {
+			return 0;
+		}
+
+		$this->cache->set($cache_key, $activities, Duration::HOUR);
+		return $activities;
+	}
+
+	private function getMedianThreadScore(int $cid, int $divider): int
+	{
+		$cache_key = 'Channel:getThreadScore:' . $cid . ':' . $divider;
+		$score     = $this->cache->get($cache_key);
+		if (!empty($score)) {
+			return $score;
+		}
+
+		$limit    = $this->database->count('contact-relation', ["`cid` = ? AND `thread-score` > ?", $cid, 0]) / $divider;
+		$relation = $this->database->selectToArray('contact-relation', ['thread-score'], ['cid' => $cid], ['order' => ['thread-score' => true], 'limit' => [$limit, 1]]);
+		$score    = $relation[0]['thread-score'] ?? 0;
+		if (empty($score)) {
+			return 0;
+		}
+
+		$this->cache->set($cache_key, $score, Duration::HOUR);
+		return $score;
+	}
+}
--- a/src/Module/Conversation/Community.php
+++ b/src/Module/Conversation/Community.php
@ -137,6 +137,7 @@ class Community extends BaseModule
 					'$no_sharer'       => !empty($_REQUEST['no_sharer']),
 					'$all'             => DI::l10n()->t('Include'),
 					'$no_sharer_label' => DI::l10n()->t('Hide'),
+					'$base'            => 'community',
 				]);
 			}

@ -245,8 +246,7 @@ class Community extends BaseModule
 		}

 		self::$min_id = $_GET['min_id'] ?? null;
-		self::$max_id   = $_GET['max_id']   ?? null;
-		self::$max_id   = $_GET['last_commented'] ?? self::$max_id;
+		self::$max_id = $_GET['last_commented'] ?? $_GET['max_id'] ?? null;
 	}

 	/**
--- a/src/Module/Settings/Display.php
+++ b/src/Module/Settings/Display.php
@ -76,6 +76,7 @@ class Display extends BaseSettings
 		$theme                  = !empty($request['theme'])                  ? trim($request['theme'])                    : $user['theme'];
 		$mobile_theme           = !empty($request['mobile_theme'])           ? trim($request['mobile_theme'])             : '';
 		$enable_smile           = !empty($request['enable_smile'])           ? intval($request['enable_smile'])           : 0;
+		$channel_languages      = !empty($request['channel_languages'])      ? $request['channel_languages']              : [];
 		$first_day_of_week      = !empty($request['first_day_of_week'])      ? intval($request['first_day_of_week'])      : 0;
 		$calendar_default_view  = !empty($request['calendar_default_view'])  ? trim($request['calendar_default_view'])    : 'month';
 		$infinite_scroll        = !empty($request['infinite_scroll'])        ? intval($request['infinite_scroll'])        : 0;
@ -120,8 +121,10 @@ class Display extends BaseSettings
 		$this->pConfig->set($uid, 'system', 'stay_local'              , $stay_local);
 		$this->pConfig->set($uid, 'system', 'preview_mode'            , $preview_mode);

+		$this->pConfig->set($uid, 'channel', 'languages'              , $channel_languages);
+
 		$this->pConfig->set($uid, 'calendar', 'first_day_of_week'     , $first_day_of_week);
-		$this->pConfig->set($uid, 'calendar', 'default_view'           , $calendar_default_view);
+		$this->pConfig->set($uid, 'calendar', 'default_view'          , $calendar_default_view);

 		if (in_array($theme, Theme::getAllowedList())) {
 			if ($theme == $user['theme']) {
@ -215,6 +218,8 @@ class Display extends BaseSettings
 			BBCode::PREVIEW_LARGE    => $this->t('Large Image'),
 		];

+		$channel_languages = $this->pConfig->get($uid, 'channel', 'languages', [User::getLanguageCode($uid, false)]);
+		$languages         = $this->l10n->getAvailableLanguages();

 		$first_day_of_week = $this->pConfig->get($uid, 'calendar', 'first_day_of_week', 0);
 		$weekdays          = [
@ -249,6 +254,7 @@ class Display extends BaseSettings
 			'$d_ctset'        => $this->t('Custom Theme Settings'),
 			'$d_cset'         => $this->t('Content Settings'),
 			'$stitle'         => $this->t('Theme settings'),
+			'$channel_title'  => $this->t('Channels'),
 			'$calendar_title' => $this->t('Calendar'),

 			'$form_security_token' => self::getFormSecurityToken('settings_display'),
@ -269,6 +275,8 @@ class Display extends BaseSettings
 			'$stay_local'               => ['stay_local'              , $this->t('Stay local'), $stay_local, $this->t("Don't go to a remote system when following a contact link.")],
 			'$preview_mode'             => ['preview_mode'            , $this->t('Link preview mode'), $preview_mode, $this->t('Appearance of the link preview that is added to each post with a link.'), $preview_modes, false],

+			'$channel_languages' => ['channel_languages[]', $this->t('Channel languages:'), $channel_languages, $this->t('Select all languages that you want to see in your channels.'), $languages, 'multiple'],
+
 			'$first_day_of_week'     => ['first_day_of_week'    , $this->t('Beginning of week:')    , $first_day_of_week    , '', $weekdays     , false],
 			'$calendar_default_view' => ['calendar_default_view', $this->t('Default calendar view:'), $calendar_default_view, '', $calendarViews, false],
 		]);
--- a/src/Module/Update/Channel.php
+++ b/src/Module/Update/Channel.php
@ -0,0 +1,46 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2023, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Module\Update;
+
+use Friendica\Content\Conversation;
+use Friendica\Core\System;
+use Friendica\Module\Conversation\Channel as ChannelModule;
+
+/**
+ * Asynchronous update module for the Channel page
+ *
+ * @package Friendica\Module\Update
+ */
+class Channel extends ChannelModule
+{
+	protected function rawContent(array $request = [])
+	{
+		$this->parseRequest($request);
+
+		$o = '';
+		if (!empty($request['force'])) {
+			$o = $this->conversation->render($this->getItems($request), Conversation::MODE_CHANNEL, true, false, 'created', $this->session->getLocalUserId());
+		}
+
+		System::htmlUpdateExit($o);
+	}
+}
--- a/src/Object/Thread.php
+++ b/src/Object/Thread.php
@ -21,6 +21,7 @@

 namespace Friendica\Object;

+use Friendica\Content\Conversation;
 use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
 use Friendica\DI;
@ -73,24 +74,19 @@ class Thread
 		$a = DI::app();

 		switch ($mode) {
-			case 'network':
-			case 'notes':
+			case Conversation::MODE_NETWORK:
+			case Conversation::MODE_NOTES:
 				$this->profile_owner = DI::userSession()->getLocalUserId();
 				$this->writable = true;
 				break;
-			case 'profile':
+			case Conversation::MODE_PROFILE:
+			case Conversation::MODE_DISPLAY:
 				$this->profile_owner = $a->getProfileOwner();
 				$this->writable = Security::canWriteToUserWall($this->profile_owner) || $writable;
 				break;
-			case 'display':
-				$this->profile_owner = $a->getProfileOwner();
-				$this->writable = Security::canWriteToUserWall($this->profile_owner) || $writable;
-				break;
-			case 'community':
-				$this->profile_owner = 0;
-				$this->writable = $writable;
-				break;
-			case 'contacts':
+			case Conversation::MODE_CHANNEL:
+			case Conversation::MODE_COMMUNITY:
+			case Conversation::MODE_CONTACTS:
 				$this->profile_owner = 0;
 				$this->writable = $writable;
 				break;
--- a/src/Worker/OptimizeTables.php
+++ b/src/Worker/OptimizeTables.php
@ -45,6 +45,7 @@ class OptimizeTables
 		DBA::optimizeTable('oembed');
 		DBA::optimizeTable('parsed_url');
 		DBA::optimizeTable('session');
+		DBA::optimizeTable('post-engagement');

 		if (DI::config()->get('system', 'optimize_all_tables')) {
 			DBA::optimizeTable('apcontact');
--- a/src/Worker/UpdateScores.php
+++ b/src/Worker/UpdateScores.php
@ -24,6 +24,7 @@ namespace Friendica\Worker;
 use Friendica\Core\Logger;
 use Friendica\Database\DBA;
 use Friendica\Model\Contact\Relation;
+use Friendica\Model\Post;

 /**
 * Update the interaction scores 
@ -41,6 +42,9 @@ class UpdateScores
 		DBA::close($users);

 		Logger::notice('Score update done');
+
+		Post\Engagement::expire();
+
 		return;
 	}
 }
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@ -56,7 +56,7 @@ use Friendica\Database\DBA;

 // This file is required several times during the test in DbaDefinition which justifies this condition
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1530);
+	define('DB_UPDATE_VERSION', 1531);
 }

 return [
@ -162,8 +162,8 @@ return [
 	"user-gserver" => [
 		"comment" => "User settings about remote servers",
 		"fields" => [
-			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "foreign" => ["user" => "uid"], "comment" => "Owner User id"],
-			"gsid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "foreign" => ["gserver" => "id"], "comment" => "Gserver id"],
+			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "foreign" => ["user" => "uid"], "primary" => "1", "comment" => "Owner User id"],
+			"gsid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "foreign" => ["gserver" => "id"], "primary" => "1", "comment" => "Gserver id"],
 			"ignored" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "server accounts are ignored for the user"],
 		],
 		"indexes" => [
@ -1323,6 +1323,24 @@ return [
 			"PRIMARY" => ["uri-id"],
 		]
 	],
+	"post-engagement" => [
+		"comment" => "Engagement data per post",
+		"fields" => [
+			"uri-id" => ["type" => "int unsigned", "not null" => "1", "primary" => "1",  "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the item uri"],
+			"owner-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "foreign" => ["contact" => "id", "on delete" => "restrict"], "comment" => "Item owner"],
+			"contact-type" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => "Person, organisation, news, community, relay"],
+			"media-type" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => "Type of media in a bit array (1 = image, 2 = video, 4 = audio"],
+			"language" => ["type" => "varbinary(128)", "comment" => "Language information about this post"],
+			"created" => ["type" => "datetime", "comment" => ""],
+			"comments" => ["type" => "mediumint unsigned", "comment" => "Number of comments"],
+			"activities" => ["type" => "mediumint unsigned", "comment" => "Number of activities (like, dislike, ...)"],
+		],
+		"indexes" => [
+			"PRIMARY" => ["uri-id"],
+			"owner-id" => ["owner-id"],
+			"created" => ["created"],
+		]
+	],
 	"post-history" => [
 		"comment" => "Post history",
 		"fields" => [
--- a/static/defaults.config.php
+++ b/static/defaults.config.php
@ -349,10 +349,6 @@ return [
 		// This has to be quite large to deal with embedded private photos. False to use the system value.
 		'ini_pcre_backtrack_limit' => 500000,

-		// interaction_score_days (Integer)
-		// Number of days that are used to calculate the interaction score.
-		'interaction_score_days' => 30,
-
 		// invitation_only (Boolean)
 		// If set true registration is only possible after a current member of the node has sent an invitation.
 		'invitation_only' => false,
@ -800,4 +796,13 @@ return [
 		// Wether the blocklist is publicly listed under /about (or in any later API)
 		'public' => true,
 	],
+	'channel' => [
+		// engagement_hours (Integer)
+		// Number of hours posts are held in the engagement table
+		'engagement_hours' => 24,
+
+		// interaction_score_days (Integer)
+		// Number of days that are used to calculate the interaction score.
+		'interaction_score_days' => 30,
+	],
 ];
--- a/static/routes.config.php
+++ b/static/routes.config.php
@ -391,6 +391,7 @@ return [
 		'/event/{mode:edit|copy}/{id:\d+}'              => [Module\Calendar\Event\Form::class, [R::GET         ]],
 	],

+	'/channel[/{content}]'   => [Module\Conversation\Channel::class,   [R::GET]],
 	'/community[/{content}]' => [Module\Conversation\Community::class, [R::GET]],

 	'/compose[/{type}]'    => [Module\Item\Compose::class, [R::GET, R::POST]],
@ -686,6 +687,7 @@ return [
 	'/toggle_mobile'                 => [Module\ToggleMobile::class,          [R::GET]],
 	'/tos'                           => [Module\Tos::class,                   [R::GET]],

+	'/update_channel[/{content}]'    => [Module\Update\Channel::class,        [R::GET]],
 	'/update_community[/{content}]'  => [Module\Update\Community::class,      [R::GET]],

 	'/update_display'                => [Module\Update\Display::class, [R::GET]],
--- a/update.php
+++ b/update.php
@ -62,6 +62,7 @@ use Friendica\Model\User;
 use Friendica\Protocol\Activity;
 use Friendica\Protocol\Delivery;
 use Friendica\Security\PermissionSet\Repository\PermissionSet;
+use Friendica\Util\DateTimeFormat;

 // Post-update script of PR 5751
 function update_1298()
@ -1377,3 +1378,15 @@ function update_1525(): int

 	return Update::SUCCESS;
 }
+
+function update_1531()
+{
+	$threads = Post::selectThread(Item::DELIVER_FIELDLIST, ["`uid` = ? AND `created` > ?", 0, DateTimeFormat::utc('now - ' . DI::config()->get('channel', 'engagement_hours') . ' hour')]);
+	while ($post = Post::fetch($threads)) {
+		$post['gravity'] = Item::GRAVITY_COMMENT;
+		Post\Engagement::storeFromItem($post);
+	}
+	DBA::close($threads);
+
+	return Update::SUCCESS;
+}
--- a/view/js/main.js
+++ b/view/js/main.js
@ -506,7 +506,7 @@ function NavUpdate() {
 				$('nav').trigger('nav-update', data.result);

 				// start live update
-				['network', 'profile', 'community', 'notes', 'display', 'contact'].forEach(function (src) {
+				['network', 'profile', 'channel', 'community', 'notes', 'display', 'contact'].forEach(function (src) {
 					if ($('#live-' + src).length) {
 						liveUpdate(src);
 					}
--- a/view/lang/C/messages.po
+++ b/view/lang/C/messages.po
--- a/view/templates/field_select.tpl
+++ b/view/templates/field_select.tpl
@ -3,7 +3,11 @@
 		<label for="id_{{$field.0}}">{{$field.1}}</label>
 		<select name="{{$field.0}}" id="id_{{$field.0}}" aria-describedby="{{$field.0}}_tip" {{$field.5 nofilter}}>
 	{{foreach $field.4 as $opt=>$val}}
+		{{if $field.5=='multiple'}}
+			<option value="{{$opt}}" dir="auto"{{if $opt|in_array:$field.2}} selected="selected"{{/if}}>{{$val}}</option>
+		{{else}}
 			<option value="{{$opt}}" dir="auto"{{if $opt==$field.2}} selected="selected"{{/if}}>{{$val}}</option>
+		{{/if}}
 	{{/foreach}}
 		</select>
 	{{if $field.3}}
--- a/view/templates/nav.tpl
+++ b/view/templates/nav.tpl
@ -32,6 +32,9 @@
 	<a accesskey="p" id="nav-home-link" class="nav-commlink {{$nav.home.2}} {{$sel.home}}" href="{{$nav.home.0}}" title="{{$nav.home.3}}">{{$nav.home.1}}</a>
 	<span id="home-update" class="nav-ajax-left"></span>
 	{{/if}}
+	{{if $nav.channel}}
+	<a accesskey="l" id="nav-channel-link" class="nav-commlink {{$nav.channel.2}} {{$sel.channel}}" href="{{$nav.channel.0}}" title="{{$nav.channel.3}}">{{$nav.channel.1}}</a>
+	{{/if}}
 	{{if $nav.community}}
 	<a accesskey="c" id="nav-community-link" class="nav-commlink {{$nav.community.2}} {{$sel.community}}" href="{{$nav.community.0}}" title="{{$nav.community.3}}">{{$nav.community.1}}</a>
 	{{/if}}
--- a/view/templates/settings/display.tpl
+++ b/view/templates/settings/display.tpl
@ -21,6 +21,9 @@
 	{{include file="field_checkbox.tpl" field=$stay_local}}
 	{{include file="field_select.tpl" field=$preview_mode}}

+	<h2>{{$channel_title}}</h2>
+	{{include file="field_select.tpl" field=$channel_languages}}
+
 	<h2>{{$calendar_title}}</h2>
 	{{include file="field_select.tpl" field=$first_day_of_week}}
 	{{include file="field_select.tpl" field=$calendar_default_view}}
--- a/view/templates/widget/community_sharer.tpl
+++ b/view/templates/widget/community_sharer.tpl
@ -6,8 +6,8 @@
 		<h3>{{$title}}</h3>
 	</span>
 	<ul class="sidebar-community-no-sharer-ul">
-		<li role="menuitem" class="sidebar-community-no-sharer-li{{if !$no_sharer}} selected{{/if}}"><a href="community/{{$path_all}}">{{$all}}</a></li>
-		<li role="menuitem" class="sidebar-community-no-sharer-li{{if $no_sharer}} selected{{/if}}"><a href="community/{{$path_no_sharer}}">{{$no_sharer_label}}</a></li>
+		<li role="menuitem" class="sidebar-community-no-sharer-li{{if !$no_sharer}} selected{{/if}}"><a href="{{$base}}/{{$path_all}}">{{$all}}</a></li>
+		<li role="menuitem" class="sidebar-community-no-sharer-li{{if $no_sharer}} selected{{/if}}"><a href="{{$base}}/{{$path_no_sharer}}">{{$no_sharer_label}}</a></li>
 	</ul>
 </div>
 <script>
--- a/view/theme/frio/templates/field_select.tpl
+++ b/view/theme/frio/templates/field_select.tpl
@ -3,7 +3,11 @@
 		<label for="id_{{$field.0}}">{{$field.1}}</label>
 		<select name="{{$field.0}}" id="id_{{$field.0}}" class="form-control" aria-describedby="{{$field.0}}_tip" {{$field.5 nofilter}}>
 	{{foreach $field.4 as $opt=>$val}}
+		{{if $field.5=='multiple'}}
+			<option value="{{$opt}}" {{if $opt|in_array:$field.2}}selected="selected"{{/if}}>{{$val}}</option>
+		{{else}}
 			<option value="{{$opt}}" {{if $opt==$field.2}}selected="selected"{{/if}}>{{$val}}</option>
+		{{/if}}
 	{{/foreach}}
 		</select>
 	{{if $field.3}}
--- a/view/theme/frio/templates/nav.tpl
+++ b/view/theme/frio/templates/nav.tpl
@ -54,6 +54,15 @@
 										class="nav-network-badge badge nav-notification"></span></a>
 							</li>
 						{{/if}}
+
+						{{if $nav.channel}}
+							<li class="nav-segment">
+								<a accesskey="l" class="nav-menu {{$sel.channel}}" href="{{$nav.channel.0}}"
+									data-toggle="tooltip" aria-label="{{$nav.channel.3}}" title="{{$nav.channel.3}}"><i
+										class="fa fa-lg fa-newspaper-o fa-fw" aria-hidden="true"></i></a>
+							</li>
+						{{/if}}
+
 						{{if $nav.home}}
 							<li class="nav-segment">
 								<a accesskey="p" class="nav-menu {{$sel.home}}" href="{{$nav.home.0}}" data-toggle="tooltip"
--- a/view/theme/frio/templates/settings/display.tpl
+++ b/view/theme/frio/templates/settings/display.tpl
@ -74,6 +74,24 @@
 				</div>
 			</div>

+			<div class="panel">
+				<div class="section-subtitle-wrapper panel-heading" role="tab" id="channel-settings-title">
+					<h2>
+						<button class="btn-link accordion-toggle collapsed" data-toggle="collapse" data-parent="#settings" href="#channel-settings-content" aria-expanded="false" aria-controls="channel-settings-content">
+							{{$channel_title}}
+						</button>
+					</h2>
+				</div>
+				<div id="channel-settings-content" class="panel-collapse collapse{{if !$theme && !$mobile_theme && !$theme_config}} in{{/if}}" role="tabpanel" aria-labelledby="channel-settings">
+					<div class="panel-body">
+						{{include file="field_select.tpl" field=$channel_languages}}
+					</div>
+					<div class="panel-footer">
+						<button type="submit" name="submit" class="btn btn-primary" value="{{$submit}}">{{$submit}}</button>
+					</div>
+				</div>
+			</div>
+
 			<div class="panel">
 				<div class="section-subtitle-wrapper panel-heading" role="tab" id="calendar-settings-title">
 					<h2>
--- a/view/theme/vier/templates/nav.tpl
+++ b/view/theme/vier/templates/nav.tpl
@ -36,6 +36,12 @@
 				<a class="{{$nav.events.2}} mobile-view" href="{{$nav.events.0}}" title="{{$nav.events.3}}"><i class="icon s22 icon-calendar"></i></a>
 			</li>
 		{{/if}}
+		{{if $nav.channel}}
+			<li role="menuitem" id="nav-channel-link" class="nav-menu {{$sel.channel}}">
+				<a accesskey="l" class="{{$nav.channel.2}} desktop-view" href="{{$nav.channel.0}}" title="{{$nav.channel.3}}">{{$nav.channel.1}}</a>
+				<a class="{{$nav.channel.2}} mobile-view" href="{{$nav.channel.0}}" title="{{$nav.channel.3}}"><i class="icon s22 icon-bullseye"></i></a>
+			</li>
+		{{/if}}
 		{{if $nav.community}}
 			<li role="menuitem" id="nav-community-link" class="nav-menu {{$sel.community}}">
 				<a accesskey="c" class="{{$nav.community.2}} desktop-view" href="{{$nav.community.0}}" title="{{$nav.community.3}}">{{$nav.community.1}}</a>