Check for user defined channel matches before storing them

database.sql

@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2023.09-rc (Giant Rhubarb)
--- DB_UPDATE_VERSION 1539
+-- DB_UPDATE_VERSION 1540
 -- ------------------------------------------
 
 
@@ -1867,6 +1867,16 @@ CREATE TABLE IF NOT EXISTS `subscription` (
 	FOREIGN KEY (`uid`) REFERENCES `user` (`uid`) ON UPDATE RESTRICT ON DELETE CASCADE
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Push Subscription for the API';
 
+--
+-- TABLE test-full-text-search
+--
+CREATE TABLE IF NOT EXISTS `test-full-text-search` (
+	`pid` int unsigned NOT NULL DEFAULT 0 COMMENT 'Process id of the worker',
+	`searchtext` mediumtext COMMENT 'Simplified text for the full text search',
+	 PRIMARY KEY(`pid`),
+	 FULLTEXT INDEX `searchtext` (`searchtext`)
+) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Test for a full text search match in user defined channels before storing the message in the system';
+
 --
 -- TABLE userd
 --

doc/database.md

@@ -86,6 +86,7 @@ Database Tables
 | [storage](help/database/db_storage) | Data stored by Database storage backend |
 | [subscription](help/database/db_subscription) | Push Subscription for the API |
 | [tag](help/database/db_tag) | tags and mentions |
+| [test-full-text-search](help/database/db_test-full-text-search) | Test for a full text search match in user defined channels before storing the message in the system |
 | [user](help/database/db_user) | The local users |
 | [user-contact](help/database/db_user-contact) | User specific public contact data |
 | [user-gserver](help/database/db_user-gserver) | User settings about remote servers |

doc/database/db_test-full-text-search.md

@@ -0,0 +1,23 @@
+Table test-full-text-search
+===========
+
+Test for a full text search match in user defined channels before storing the message in the system
+
+Fields
+------
+
+| Field      | Description                              | Type         | Null | Key | Default | Extra |
+| ---------- | ---------------------------------------- | ------------ | ---- | --- | ------- | ----- |
+| pid        | Process id of the worker                 | int unsigned | NO   |     | 0       |       |
+| searchtext | Simplified text for the full text search | mediumtext   | YES  |     | NULL    |       |
+
+Indexes
+------------
+
+| Name       | Fields               |
+| ---------- | -------------------- |
+| PRIMARY    | pid                  |
+| searchtext | FULLTEXT, searchtext |
+
+
+Return to [database documentation](help/database)

src/Content/Conversation/Repository/UserDefinedChannel.php

@@ -25,16 +25,23 @@ use Friendica\BaseCollection;
 use Friendica\Content\Conversation\Collection\UserDefinedChannels;
 use Friendica\Content\Conversation\Entity;
 use Friendica\Content\Conversation\Factory;
+use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
 use Friendica\Database\Database;
+use Friendica\Model\User;
 use Psr\Log\LoggerInterface;
 
 class UserDefinedChannel extends \Friendica\BaseRepository
 {
 	protected static $table_name = 'channel';
 
-	public function __construct(Database $database, LoggerInterface $logger, Factory\UserDefinedChannel $factory)
+	/** @var IManagePersonalConfigValues */
+	private $pConfig;
+
+	public function __construct(Database $database, LoggerInterface $logger, Factory\UserDefinedChannel $factory, IManagePersonalConfigValues $pConfig)
 	{
 		parent::__construct($database, $logger, $factory);
+
+		$this->pConfig = $pConfig;
 	}
 
 	/**
@@ -89,7 +96,7 @@ class UserDefinedChannel extends \Friendica\BaseRepository
 	 */
 	public function deleteById(int $id, int $uid): bool
 	{
-		return $this->db->delete('channel', ['id' => $id, 'uid' => $uid]);
+		return $this->db->delete(self::$table_name, ['id' => $id, 'uid' => $uid]);
 	}
 
 	/**
@@ -130,4 +137,41 @@ class UserDefinedChannel extends \Friendica\BaseRepository
 
 		return $Channel;
 	}
+
+	/**
+	 * Checks, if one of the user defined channels matches with the given search text
+	 * @todo To increase the performance, this functionality should be replaced with a single SQL call.
+	 *
+	 * @param string $searchtext
+	 * @param string $language
+	 * @return boolean
+	 */
+	public function match(string $searchtext, string $language): bool
+	{
+		if (!in_array($language, User::getLanguages())) {
+			$this->logger->debug('Unwanted language found. No matched channel found.', ['language' => $language, 'searchtext' => $searchtext]);
+			return false;
+		}
+
+		$store = false;
+		$this->db->insert('test-full-text-search', ['pid' => getmypid(), 'searchtext' => $searchtext], Database::INSERT_UPDATE);
+		$channels = $this->db->select(self::$table_name, ['full-text-search', 'uid', 'label'], ["`full-text-search` != ?", '']);
+		while ($channel = $this->db->fetch($channels)) {
+			$channelsearchtext = $channel['full-text-search'];
+			foreach (['from', 'to', 'group', 'tag', 'network', 'platform', 'visibility'] as $keyword) {
+				$channelsearchtext = preg_replace('~(' . $keyword . ':.[\w@\.-]+)~', '"$1"', $channelsearchtext);
+			}
+			if ($this->db->exists('test-full-text-search', ["`pid` = ? AND MATCH (`searchtext`) AGAINST (? IN BOOLEAN MODE)", getmypid(), $channelsearchtext])) {
+				if (in_array($language, $this->pConfig->get($channel['uid'], 'channel', 'languages', [User::getLanguageCode($channel['uid'])]))) {
+					$store = true;
+					$this->logger->debug('Matching channel found.', ['uid' => $channel['uid'], 'label' => $channel['label'], 'language' => $language, 'channelsearchtext' => $channelsearchtext, 'searchtext' => $searchtext]);
+					break;
+				}
+			}
+		}
+		$this->db->close($channels);
+
+		$this->db->delete('test-full-text-search', ['pid' => getmypid()]);
+		return $store;
+	}
 }

src/Model/GServer.php

@@ -240,7 +240,7 @@ class GServer
 		} elseif (!empty($contact['baseurl'])) {
 			$server = $contact['baseurl'];
 		} elseif ($contact['network'] == Protocol::DIASPORA) {
-			$parts = parse_url($contact['url']);
+			$parts = (array)parse_url($contact['url']);
 			unset($parts['path']);
 			$server = (string)Uri::fromParts($parts);
 		} else {
@@ -589,7 +589,7 @@ class GServer
 			if ((parse_url($url, PHP_URL_HOST) != parse_url($valid_url, PHP_URL_HOST)) && (parse_url($url, PHP_URL_PATH) != parse_url($valid_url, PHP_URL_PATH)) &&
 				(parse_url($url, PHP_URL_PATH) == '')) {
 				Logger::debug('Found redirect. Mark old entry as failure and redirect to the basepath.', ['old' => $url, 'new' => $valid_url]);
-				$parts = parse_url($valid_url);
+				$parts = (array)parse_url($valid_url);
 				unset($parts['path']);
 				$valid_url = (string)Uri::fromParts($parts);
 

src/Model/Post/Engagement.php

@@ -33,6 +33,7 @@ use Friendica\Model\Post;
 use Friendica\Model\Tag;
 use Friendica\Model\Verb;
 use Friendica\Protocol\Activity;
+use Friendica\Protocol\ActivityPub\Receiver;
 use Friendica\Protocol\Relay;
 use Friendica\Util\DateTimeFormat;
 
@@ -52,7 +53,7 @@ class Engagement
 		}
 
 		$parent = Post::selectFirst(['uri-id', 'created', 'author-id', 'owner-id', 'uid', 'private', 'contact-contact-type', 'language', 'network',
-			'title', 'content-warning', 'body', 'author-contact-type', 'author-nick', 'author-addr', 'owner-contact-type', 'owner-nick', 'owner-addr'],
+			'title', 'content-warning', 'body', 'author-contact-type', 'author-nick', 'author-addr', 'author-gsid', 'owner-contact-type', 'owner-nick', 'owner-addr'],
 			['uri-id' => $item['parent-uri-id']]);
 
 		if ($parent['created'] < self::getCreationDateLimit(false)) {
@@ -79,7 +80,14 @@ class Engagement
 		$mediatype = self::getMediaType($item['parent-uri-id']);
 
 		if (!$store) {
-			$mediatype = !empty($mediatype);
+			$store = !empty($mediatype);
+		}
+
+		$searchtext = self::getSearchTextForItem($parent);
+		if (!$store) {
+			$content  = trim(($parent['title'] ?? '') . ' ' . ($parent['content-warning'] ?? '') . ' ' . ($parent['body'] ?? ''));
+			$language = array_key_first(Item::getLanguageArray($content, 1, 0, $parent['author-id']));
+			$store    = DI::userDefinedChannel()->match($searchtext, $language);
 		}
 
 		$engagement = [
@@ -88,7 +96,7 @@ class Engagement
 			'contact-type' => $parent['contact-contact-type'],
 			'media-type'   => $mediatype,
 			'language'     => $parent['language'],
-			'searchtext'   => self::getSearchText($parent),
+			'searchtext'   => $searchtext,
 			'created'      => $parent['created'],
 			'restricted'   => !in_array($item['network'], Protocol::FEDERATED) || ($parent['private'] != Item::PUBLIC),
 			'comments'     => DBA::count('post', ['parent-uri-id' => $item['parent-uri-id'], 'gravity' => Item::GRAVITY_COMMENT]),
@@ -106,10 +114,56 @@ class Engagement
 		Logger::debug('Engagement stored', ['fields' => $engagement, 'ret' => $ret]);
 	}
 
-	private static function getSearchText(array $item): string
+	public static function getSearchTextForActivity(string $content, int $author_id, array $tags, array $receivers): string
+	{
+		$author = Contact::getById($author_id);
+
+		$item = [
+			'uri-id'              => 0,
+			'network'             => Protocol::ACTIVITYPUB,
+			'title'               => '',
+			'content-warning'     => '',
+			'body'                => $content,
+			'private'             => Item::PRIVATE,
+			'author-id'           => $author_id,
+			'author-contact-type' => $author['contact-type'],
+			'author-nick'         => $author['nick'],
+			'author-addr'         => $author['addr'],
+			'author-gsid'         => $author['gsid'],
+			'owner-id'            => $author_id,
+			'owner-contact-type'  => $author['contact-type'],
+			'owner-nick'          => $author['nick'],
+			'owner-addr'          => $author['addr'],
+		];
+
+		foreach ($receivers as $receiver) {
+			if ($receiver == Receiver::PUBLIC_COLLECTION) {
+				$item['private'] = Item::PUBLIC;
+			}
+		}
+
+		return self::getSearchText($item, $receivers, $tags);
+	}
+
+	private static function getSearchTextForItem(array $item): string
+	{
+		$receivers = array_column(Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION, Tag::AUDIENCE]), 'url');
+		$tags      = array_column(Tag::getByURIId($item['uri-id'], [Tag::HASHTAG]), 'name');
+		return self::getSearchText($item, $receivers, $tags);
+	}
+
+	private static function getSearchText(array $item, array $receivers, array $tags): string
 	{
 		$body = '[nosmile]network:' . $item['network'];
 
+		if (!empty($item['author-gsid'])) {
+			$gserver = DBA::selectFirst('gserver', ['platform'], ['id' => $item['author-gsid']]);
+			$platform = preg_replace( '/[\W]/', '', $gserver['platform'] ?? '');
+			if (!empty($platform)) {
+				$body .= ' platform:' . $platform;
+			}
+		}
+
 		switch ($item['private']) {
 			case Item::PUBLIC:
 				$body .= ' visibility:public';
@@ -136,8 +190,8 @@ class Engagement
 			}
 		}
 
-		foreach (Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION, Tag::AUDIENCE]) as $tag) {
-			$contact = Contact::getByURL($tag['name'], false, ['nick', 'addr', 'contact-type']);
+		foreach ($receivers as $receiver) {
+			$contact = Contact::getByURL($receiver, false, ['nick', 'addr', 'contact-type']);
 			if (empty($contact)) {
 				continue;
 			}
@@ -149,8 +203,8 @@ class Engagement
 			}
 		}
 
-		foreach (Tag::getByURIId($item['uri-id'], [Tag::HASHTAG]) as $tag) {
-			$body .= ' tag:' . $tag['name'];
+		foreach ($tags as $tag) {
+			$body .= ' tag:' . $tag;
 		}
 
 		$body .= ' ' . $item['title'] . ' ' . $item['content-warning'] . ' ' . $item['body'];

src/Model/Search.php

@@ -22,6 +22,8 @@
 namespace Friendica\Model;
 
 use Friendica\Database\DBA;
+use Friendica\DI;
+use Friendica\Util\DateTimeFormat;
 
 /**
  * Model for DB specific logic for the search entity
@@ -36,14 +38,43 @@ class Search
 	 */
 	public static function getUserTags(): array
 	{
-		$termsStmt = DBA::p("SELECT DISTINCT(`term`) FROM `search`");
+		$user_condition = ["`verified` AND NOT `blocked` AND NOT `account_removed` AND NOT `account_expired` AND `user`.`uid` > ?", 0];
+
+		$abandon_days = intval(DI::config()->get('system', 'account_abandon_days'));
+		if (!empty($abandon_days)) {
+			$user_condition = DBA::mergeConditions($user_condition, ["`last-activity` > ?", DateTimeFormat::utc('now - ' . $abandon_days . ' days')]);
+		}
+
+		$condition = $user_condition;
+		$condition[0] = "SELECT DISTINCT(`term`) FROM `search` INNER JOIN `user` ON `search`.`uid` = `user`.`uid` WHERE " . $user_condition[0];
+		$sql = array_shift($condition);
+		$termsStmt = DBA::p($sql, $condition);
 
 		$tags = [];
-
 		while ($term = DBA::fetch($termsStmt)) {
 			$tags[] = trim(mb_strtolower($term['term']), '#');
 		}
 		DBA::close($termsStmt);
+
+		$condition = $user_condition;
+		$condition[0] = "SELECT `include-tags` FROM `channel` INNER JOIN `user` ON `channel`.`uid` = `user`.`uid` WHERE " . $user_condition[0];
+		$sql = array_shift($condition);
+		$channels = DBA::p($sql, $condition);
+		while ($channel = DBA::fetch($channels)) {
+			foreach (explode(',', $channel['include-tags']) as $tag) {
+				$tag = trim(mb_strtolower($tag));
+				if (empty($tag)) {
+					continue;
+				}
+				if (!in_array($tag, $tags)) {
+					$tags[]	= $tag;
+				}
+			}
+		}
+		DBA::close($channels);
+
+		sort($tags);
+
 		return $tags;
 	}
 }

src/Model/User.php

@@ -582,6 +582,12 @@ class User
 	 */
 	public static function getLanguages(): array
 	{
+		$cachekey  = 'user:getLanguages';
+		$languages = DI::cache()->get($cachekey);
+		if (!is_null($languages)) {
+			return $languages;
+		}
+
 		$supported = array_keys(DI::l10n()->getLanguageCodes());
 		$languages = [];
 		$uids      = [];
@@ -620,7 +626,10 @@ class User
 		DBA::close($channels);
 
 		ksort($languages);
-		return array_keys($languages);
+		$languages = array_keys($languages);
+		DI::cache()->set($cachekey, $languages);
+
+		return $languages;
 	}
 
 	/**

src/Module/Conversation/Timeline.php

@@ -391,7 +391,7 @@ class Timeline extends BaseModule
 
 		if (!empty($channel->fullTextSearch)) {
 			$search = $channel->fullTextSearch;
-			foreach (['from', 'to', 'group', 'tag', 'network', 'visibility'] as $keyword) {
+			foreach (['from', 'to', 'group', 'tag', 'network', 'platform', 'visibility'] as $keyword) {
 				$search = preg_replace('~(' . $keyword . ':.[\w@\.-]+)~', '"$1"', $search);
 			}
 			$condition = DBA::mergeConditions($condition, ["MATCH (`searchtext`) AGAINST (? IN BOOLEAN MODE)", $search]);

src/Protocol/ActivityPub/Processor.php

@@ -42,6 +42,7 @@ use Friendica\Model\Mail;
 use Friendica\Model\Tag;
 use Friendica\Model\User;
 use Friendica\Model\Post;
+use Friendica\Model\Post\Engagement;
 use Friendica\Protocol\Activity;
 use Friendica\Protocol\ActivityPub;
 use Friendica\Protocol\Delivery;
@@ -751,7 +752,7 @@ class Processor
 	public static function addToFeaturedCollection(array $activity)
 	{
 		$post = self::getUriIdForFeaturedCollection($activity);
-		if (empty($post)) {
+		if (empty($post) || empty($post['author-id'])) {
 			Queue::remove($activity);
 			return;
 		}
@@ -1562,20 +1563,17 @@ class Processor
 			return '';
 		}
 
+		$ldobject = JsonLD::compact($object);
+
 		$signer = [];
 
-		if (!empty($object['attributedTo'])) {
-			$attributed_to = $object['attributedTo'];
-			if (is_array($attributed_to)) {
-				$compacted = JsonLD::compact($object);
-				$attributed_to = JsonLD::fetchElement($compacted, 'as:attributedTo', '@id');
-			}
+		$attributed_to = JsonLD::fetchElement($ldobject, 'as:attributedTo', '@id');
+		if (!empty($attributed_to)) {
 			$signer[] = $attributed_to;
 		}
 
-		if (!empty($object['actor'])) {
-			$object_actor = $object['actor'];
-		} elseif (!empty($attributed_to)) {
+		$object_actor = JsonLD::fetchElement($ldobject, 'as:actor', '@id');
+		if (!empty($attributed_to)) {
 			$object_actor = $attributed_to;
 		} else {
 			// Shouldn't happen
@@ -1591,8 +1589,6 @@ class Processor
 			$actor = $object_actor;
 		}
 
-		$ldobject = JsonLD::compact($object);
-
 		$type      = JsonLD::fetchElement($ldobject, '@type');
 		$object_id = JsonLD::fetchElement($ldobject, 'as:object', '@id');
 
@@ -1607,10 +1603,11 @@ class Processor
 			}
 			$activity   = $object;
 			$ldactivity = $ldobject;
-		} else {
+		} elseif (!empty($object['id'])) {
 			$activity   = self::getActivityForObject($object, $actor);
 			$ldactivity = JsonLD::compact($activity);
-			$object_id  = $object['id'];
+		} else {
+			return null;
 		}
 	
 		$ldactivity['recursion-depth'] = !empty($child['recursion-depth']) ? $child['recursion-depth'] + 1 : 0;
@@ -1631,7 +1628,7 @@ class Processor
 
 		if ($completion == Receiver::COMPLETION_RELAY) {
 			$ldactivity['from-relay'] = $ldactivity['thread-completion'];
-			if (in_array($type, Receiver::CONTENT_TYPES) && !self::acceptIncomingMessage($ldactivity, $object_id)) {
+			if (in_array($type, Receiver::CONTENT_TYPES) && !self::acceptIncomingMessage($ldactivity)) {
 				return null;
 			}
 		}
@@ -1684,16 +1681,18 @@ class Processor
 	 * Test if incoming relay messages should be accepted
 	 *
 	 * @param array $activity activity array
-	 * @param string $id      object ID
 	 * @return boolean true if message is accepted
 	 */
-	private static function acceptIncomingMessage(array $activity, string $id): bool
+	private static function acceptIncomingMessage(array $activity): bool
 	{
 		if (empty($activity['as:object'])) {
+			$id = JsonLD::fetchElement($activity, '@id');
 			Logger::info('No object field in activity - accepted', ['id' => $id]);
 			return true;
 		}
 
+		$id = JsonLD::fetchElement($activity, 'as:object', '@id');
+
 		$replyto = JsonLD::fetchElement($activity['as:object'], 'as:inReplyTo', '@id');
 		$uriid = ItemURI::getIdByURI($replyto ?? '');
 		if (Post::exists(['uri-id' => $uriid])) {
@@ -1731,7 +1730,23 @@ class Processor
 
 		$languages = self::getPostLanguages($activity['as:object'] ?? '');
 
-		return Relay::isSolicitedPost($messageTags, $content, $authorid, $id, Protocol::ACTIVITYPUB, $activity['thread-completion'] ?? 0, $languages);
+		$wanted = Relay::isSolicitedPost($messageTags, $content, $authorid, $id, Protocol::ACTIVITYPUB, $activity['from-relay'], $languages);
+		if ($wanted) {
+			return true;
+		}
+
+		$receivers = [];
+		foreach (['as:to', 'as:cc', 'as:bto', 'as:bcc', 'as:audience'] as $element) {
+			$receiver_list = JsonLD::fetchElementArray($activity, $element, '@id');
+			if (empty($receiver_list)) {
+				continue;
+			}
+			$receivers = array_merge($receivers, $receiver_list);
+		}
+
+		$searchtext = Engagement::getSearchTextForActivity($content, $authorid, $messageTags, $receivers);
+		$language   = array_key_first(Item::getLanguageArray($content, 1, 0, $authorid));
+		return DI::userDefinedChannel()->match($searchtext, $language);
 	}
 
 	/**

src/Protocol/Relay.php

@@ -193,12 +193,7 @@ class Relay
 		}
 
 		if (!empty($languages) || !empty($detected)) {
-			$cachekey = 'relay:isWantedLanguage';
-			$user_languages = DI::cache()->get($cachekey);
-			if (is_null($user_languages)) {
-				$user_languages = User::getLanguages();
-				DI::cache()->set($cachekey, $user_languages);
-			}
+			$user_languages = User::getLanguages();
 
 			foreach ($detected as $language) {
 				if (in_array($language, $user_languages)) {

src/Worker/OptimizeTables.php

@@ -46,6 +46,7 @@ class OptimizeTables
 		DBA::optimizeTable('parsed_url');
 		DBA::optimizeTable('session');
 		DBA::optimizeTable('post-engagement');
+		DBA::optimizeTable('test-full-text-search');
 
 		if (DI::config()->get('system', 'optimize_all_tables')) {
 			DBA::optimizeTable('apcontact');

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', 1539);
+	define('DB_UPDATE_VERSION', 1540);
 }
 
 return [
@@ -1858,6 +1858,17 @@ return [
 			"uid_application-id" => ["uid", "application-id"],
 		]
 	],
+	"test-full-text-search" => [
+		"comment" => "Test for a full text search match in user defined channels before storing the message in the system",
+		"fields" => [
+			"pid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => "Process id of the worker"],
+			"searchtext" => ["type" => "mediumtext", "comment" => "Simplified text for the full text search"],
+		],
+		"indexes" => [
+			"PRIMARY" => ["pid"],
+			"searchtext" => ["FULLTEXT", "searchtext"],
+		],
+	],
 	"userd" => [
 		"comment" => "Deleted usernames",
 		"fields" => [