Merge pull request #12574 from nupplaphil/feat/keyvalue_storage

Introduce key-value storage

bin/daemon.php

@@ -115,7 +115,7 @@ if (is_readable($pidfile)) {
 }
 
 if (empty($pid) && in_array($mode, ['stop', 'status'])) {
-	DI::config()->set('system', 'worker_daemon_mode', false);
+	DI::keyValue()->set('worker_daemon_mode', false);
 	die("Pidfile wasn't found. Is the daemon running?\n");
 }
 
@@ -137,7 +137,7 @@ if ($mode == 'stop') {
 
 	Logger::notice('Worker daemon process was killed', ['pid' => $pid]);
 
-	DI::config()->set('system', 'worker_daemon_mode', false);
+	DI::keyValue()->set('worker_daemon_mode', false);
 	die("Worker daemon process $pid was killed.\n");
 }
 
@@ -181,7 +181,7 @@ if (!$foreground) {
 	DBA::connect();
 }
 
-DI::config()->set('system', 'worker_daemon_mode', true);
+DI::keyValue()->set('worker_daemon_mode', true);
 
 // Just to be sure that this script really runs endlessly
 set_time_limit(0);

database.sql

@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2023.03-dev (Giant Rhubarb)
--- DB_UPDATE_VERSION 1504
+-- DB_UPDATE_VERSION 1505
 -- ------------------------------------------
 
 
@@ -839,6 +839,16 @@ CREATE TABLE IF NOT EXISTS `intro` (
 	FOREIGN KEY (`suggest-cid`) REFERENCES `contact` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='';
 
+--
+-- TABLE key-value
+--
+CREATE TABLE IF NOT EXISTS `key-value` (
+	`k` varbinary(50) NOT NULL COMMENT '',
+	`v` mediumtext COMMENT '',
+	`updated_at` int unsigned NOT NULL COMMENT 'timestamp of the last update',
+	 PRIMARY KEY(`k`)
+) DEFAULT COLLATE utf8mb4_general_ci COMMENT='A key value storage';
+
 --
 -- TABLE locks
 --

doc/database.md

@@ -40,6 +40,7 @@ Database Tables
 | [inbox-status](help/database/db_inbox-status) | Status of ActivityPub inboxes |
 | [intro](help/database/db_intro) |  |
 | [item-uri](help/database/db_item-uri) | URI and GUID for items |
+| [key-value](help/database/db_key-value) | A key value storage |
 | [locks](help/database/db_locks) |  |
 | [mail](help/database/db_mail) | private messages |
 | [mailacct](help/database/db_mailacct) | Mail account data for fetching mails |

doc/database/db_key-value.md

@@ -0,0 +1,23 @@
+Table key-value
+===========
+
+A key value storage
+
+Fields
+------
+
+| Field      | Description                  | Type          | Null | Key | Default | Extra |
+| ---------- | ---------------------------- | ------------- | ---- | --- | ------- | ----- |
+| k          |                              | varbinary(50) | NO   | PRI | NULL    |       |
+| v          |                              | mediumtext    | YES  |     | NULL    |       |
+| updated_at | timestamp of the last update | int unsigned  | NO   |     | NULL    |       |
+
+Indexes
+------------
+
+| Name    | Fields |
+| ------- | ------ |
+| PRIMARY | k      |
+
+
+Return to [database documentation](help/database)

src/Console/PostUpdate.php

@@ -22,7 +22,7 @@
 namespace Friendica\Console;
 
 use Friendica\App;
-use Friendica\Core\Config\Capability\IManageConfigValues;
+use Friendica\Core\KeyValueStorage\Capabilities\IManageKeyValuePairs;
 use Friendica\Core\L10n;
 use Friendica\Core\Update;
 
@@ -38,9 +38,9 @@ class PostUpdate extends \Asika\SimpleConsole\Console
 	 */
 	private $appMode;
 	/**
-	 * @var IManageConfigValues
+	 * @var IManageKeyValuePairs
 	 */
-	private $config;
+	private $keyValue;
 	/**
 	 * @var L10n
 	 */
@@ -60,12 +60,12 @@ HELP;
 		return $help;
 	}
 
-	public function __construct(App\Mode $appMode, IManageConfigValues $config, L10n $l10n, array $argv = null)
+	public function __construct(App\Mode $appMode, IManageKeyValuePairs $keyValue, L10n $l10n, array $argv = null)
 	{
 		parent::__construct($argv);
 
 		$this->appMode  = $appMode;
-		$this->config = $config;
+		$this->keyValue = $keyValue;
 		$this->l10n     = $l10n;
 	}
 
@@ -83,7 +83,7 @@ HELP;
 			$this->out($this->getHelp());
 			return 0;
 		} elseif ($reset_version) {
-			$this->config->set('system', 'post_update_version', $reset_version);
+			$this->keyValue->set('post_update_version', $reset_version);
 			echo $this->l10n->t('Post update version number has been set to %s.', $reset_version) . "\n";
 			return 0;
 		}

src/Core/KeyValueStorage/Capabilities/IManageKeyValuePairs.php

@@ -0,0 +1,64 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Core\KeyValueStorage\Capabilities;
+
+use Friendica\Core\KeyValueStorage\Exceptions\KeyValueStoragePersistenceException;
+
+/**
+ * Interface for Friendica specific Key-Value pair storage
+ */
+interface IManageKeyValuePairs extends \ArrayAccess
+{
+	/**
+	 * Get a particular value from the KeyValue Storage
+	 *
+	 * @param string  $key           The key to query
+	 *
+	 * @return mixed Stored value or null if it does not exist
+	 *
+	 * @throws KeyValueStoragePersistenceException In case the persistence layer throws errors
+	 *
+	 */
+	public function get(string $key);
+
+	/**
+	 * Sets a value for a given key
+	 *
+	 * Note: Please do not store booleans - convert to 0/1 integer values!
+	 *
+	 * @param string $key    The configuration key to set
+	 * @param mixed  $value  The value to store
+	 *
+	 * @throws KeyValueStoragePersistenceException In case the persistence layer throws errors
+	 */
+	public function set(string $key, $value): void;
+
+	/**
+	 * Deletes the given key.
+	 *
+	 * @param string $key    The configuration key to delete
+	 *
+	 * @throws KeyValueStoragePersistenceException In case the persistence layer throws errors
+	 *
+	 */
+	public function delete(string $key): void;
+}

src/Core/KeyValueStorage/Exceptions/KeyValueStoragePersistenceException.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Core\KeyValueStorage\Exceptions;
+
+class KeyValueStoragePersistenceException extends \RuntimeException
+{
+	public function __construct($message = "", \Throwable $previous = null)
+	{
+		parent::__construct($message, 500, $previous);
+	}
+}

src/Core/KeyValueStorage/Type/AbstractKeyValueStorage.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Core\KeyValueStorage\Type;
+
+use Friendica\Core\KeyValueStorage\Capabilities\IManageKeyValuePairs;
+
+/**
+ * An abstract helper class for Key-Value storage classes
+ */
+abstract class AbstractKeyValueStorage implements IManageKeyValuePairs
+{
+	/** {@inheritDoc} */
+	public function get(string $key)
+	{
+		return $this->offsetGet($key);
+	}
+
+	/** {@inheritDoc} */
+	public function set(string $key, $value): void
+	{
+		$this->offsetSet($key, $value);
+	}
+
+	/** {@inheritDoc} */
+	public function delete(string $key): void
+	{
+		$this->offsetUnset($key);
+	}
+}

src/Core/KeyValueStorage/Type/DBKeyValueStorage.php

@@ -0,0 +1,117 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Core\KeyValueStorage\Type;
+
+use Friendica\Core\Config\Util\ValueConversion;
+use Friendica\Core\KeyValueStorage\Exceptions\KeyValueStoragePersistenceException;
+use Friendica\Database\Database;
+
+/**
+ * A Key-Value storage provider with DB as persistence layer
+ */
+class DBKeyValueStorage extends AbstractKeyValueStorage
+{
+	const DB_KEY_VALUE_TABLE = 'key-value';
+
+	/** @var Database */
+	protected $database;
+
+	public function __construct(Database $database)
+	{
+		$this->database = $database;
+	}
+
+	/** {@inheritDoc} */
+	public function offsetExists($offset): bool
+	{
+		try {
+			return $this->database->exists(self::DB_KEY_VALUE_TABLE, ['k' => $offset]);
+		} catch (\Exception $exception) {
+			throw new KeyValueStoragePersistenceException(sprintf('Cannot check storage with key %s', $offset), $exception);
+		}
+	}
+
+	/** {@inheritDoc} */
+	#[\ReturnTypeWillChange]
+	public function offsetGet($offset)
+	{
+		try {
+			$result = $this->database->selectFirst(self::DB_KEY_VALUE_TABLE, ['v'], ['k' => $offset]);
+
+			if ($this->database->isResult($result)) {
+				$value = ValueConversion::toConfigValue($result['v']);
+
+				// just return it in case it is set
+				if (isset($value)) {
+					return $value;
+				}
+			}
+		} catch (\Exception $exception) {
+			throw new KeyValueStoragePersistenceException(sprintf('Cannot get value for key %s', $offset), $exception);
+		}
+
+		return null;
+	}
+
+	/** {@inheritDoc} */
+	#[\ReturnTypeWillChange]
+	public function offsetSet($offset, $value)
+	{
+		try {
+			// We store our setting values in a string variable.
+			// So we have to do the conversion here so that the compare below works.
+			// The exception are array values.
+			$compare_value = (!is_array($value) ? (string)$value : $value);
+			$stored_value  = $this->get($offset);
+
+			if (isset($stored_value) && ($stored_value === $compare_value)) {
+				return;
+			}
+
+			$dbValue = ValueConversion::toDbValue($value);
+
+			$return = $this->database->update(self::DB_KEY_VALUE_TABLE, [
+				'v'          => $dbValue,
+				'updated_at' => time()
+			], ['k' => $offset], true);
+
+			if (!$return) {
+				throw new \Exception(sprintf('database update failed: %s', $this->database->errorMessage()));
+			}
+		} catch (\Exception $exception) {
+			throw new KeyValueStoragePersistenceException(sprintf('Cannot set value for %s for key %s', $value, $offset), $exception);
+		}
+	}
+
+	/** {@inheritDoc} */
+	#[\ReturnTypeWillChange]
+	public function offsetUnset($offset)
+	{
+		try {
+			if (!$this->database->delete(self::DB_KEY_VALUE_TABLE, ['k' => $offset])) {
+				throw new \Exception(sprintf('database deletion failed: %s', $this->database->errorMessage()));
+			}
+		} catch (\Exception $exception) {
+			throw new KeyValueStoragePersistenceException(sprintf('Cannot delete value with key %s', $offset), $exception);
+		}
+	}
+}

src/Core/Update.php

@@ -76,7 +76,7 @@ class Update
 		}
 
 		// The postupdate has to completed version 1288 for the new post views to take over
-		$postupdate = DI::config()->get('system', 'post_update_version', self::NEW_TABLE_STRUCTURE_VERSION);
+		$postupdate = DI::keyValue()->get('post_update_version') ?? self::NEW_TABLE_STRUCTURE_VERSION;
 		if ($postupdate < self::NEW_TABLE_STRUCTURE_VERSION) {
 			$error = DI::l10n()->t('Updates from postupdate version %s are not supported. Please update at least to version 2021.01 and wait until the postupdate finished version 1383.', $postupdate);
 			if (DI::mode()->getExecutor() == Mode::INDEX) {

src/Core/Worker.php

@@ -89,9 +89,9 @@ class Worker
 		self::$process = $process;
 
 		// Kill stale processes every 5 minutes
-		$last_cleanup = DI::config()->get('system', 'worker_last_cleaned', 0);
+		$last_cleanup = DI::keyValue()->get('worker_last_cleaned') ?? 0;
 		if (time() > ($last_cleanup + 300)) {
-			DI::config()->set('system', 'worker_last_cleaned', time());
+			DI::keyValue()->set( 'worker_last_cleaned', time());
 			Worker\Cron::killStaleWorkers();
 		}
 
@@ -388,7 +388,7 @@ class Worker
 			$stamp = (float)microtime(true);
 			$condition = ["`id` = ? AND `next_try` < ?", $queue['id'], DateTimeFormat::utcNow()];
 			if (DBA::update('workerqueue', ['done' => true], $condition)) {
-				DI::config()->set('system', 'last_worker_execution', DateTimeFormat::utcNow());
+				DI::keyValue()->set('last_worker_execution', DateTimeFormat::utcNow());
 			}
 			self::$db_duration = (microtime(true) - $stamp);
 			self::$db_duration_write += (microtime(true) - $stamp);
@@ -429,7 +429,7 @@ class Worker
 
 			$stamp = (float)microtime(true);
 			if (DBA::update('workerqueue', ['done' => true], ['id' => $queue['id']])) {
-				DI::config()->set('system', 'last_worker_execution', DateTimeFormat::utcNow());
+				DI::keyValue()->set('last_worker_execution', DateTimeFormat::utcNow());
 			}
 			self::$db_duration = (microtime(true) - $stamp);
 			self::$db_duration_write += (microtime(true) - $stamp);
@@ -1422,7 +1422,7 @@ class Worker
 			$duration = max($start, $end) - min($start, $end);
 
 			// Quit when the last cron execution had been after the previous window
-			$last_cron = DI::config()->get('system', 'last_cron_daily');
+			$last_cron = DI::keyValue()->get('last_cron_daily');
 			if ($last_cron + $duration > time()) {
 				Logger::info('The Daily cron had been executed recently', ['last' => date(DateTimeFormat::MYSQL, $last_cron), 'start' => date('H:i:s', $start), 'end' => date('H:i:s', $end)]);
 				return false;

src/Core/Worker/Daemon.php

@@ -47,7 +47,7 @@ class Daemon
 			return true;
 		}
 
-		$daemon_mode = DI::config()->get('system', 'worker_daemon_mode', false, true);
+		$daemon_mode = DI::keyValue()->get('worker_daemon_mode') ?? false;
 		if ($daemon_mode) {
 			return $daemon_mode;
 		}
@@ -93,11 +93,11 @@ class Daemon
 		}
 
 		// Check every minute if the daemon is running
-		if (DI::config()->get('system', 'last_daemon_check', 0) + 60 > time()) {
+		if ((DI::keyValue()->get('last_daemon_check') ?? 0) + 60 > time()) {
 			return;
 		}
 
-		DI::config()->set('system', 'last_daemon_check', time());
+		DI::keyValue()->set('last_daemon_check', time());
 
 		$pidfile = DI::config()->get('system', 'pidfile');
 		if (empty($pidfile)) {

src/DI.php

@@ -181,6 +181,11 @@ abstract class DI
 		return self::$dice->create(Core\Config\Capability\IManageConfigValues::class);
 	}
 
+	public static function keyValue(): Core\KeyValueStorage\Capabilities\IManageKeyValuePairs
+	{
+		return self::$dice->create(Core\KeyValueStorage\Capabilities\IManageKeyValuePairs::class);
+	}
+
 	/**
 	 * @return Core\PConfig\Capability\IManagePersonalConfigValues
 	 */

src/Database/DBStructure.php

@@ -53,7 +53,7 @@ class DBStructure
 			throw new \Asika\SimpleConsole\CommandArgsException('The version number must be numeric');
 		}
 
-		DI::config()->set('system', 'build', $version);
+		DI::keyValue()->set('build', $version);
 		echo DI::l10n()->t('The database version had been set to %s.', $version);
 	}
 
@@ -65,7 +65,7 @@ class DBStructure
 	 */
 	public static function dropTables(bool $execute)
 	{
-		$postupdate = DI::config()->get('system', 'post_update_version', PostUpdate::VERSION);
+		$postupdate = DI::keyValue()->get('post_update_version') ?? PostUpdate::VERSION;
 		if ($postupdate < PostUpdate::VERSION) {
 			echo DI::l10n()->t('The post update is at version %d, it has to be at %d to safely drop the tables.', $postupdate, PostUpdate::VERSION);
 			return;

src/Database/PostUpdate.php

@@ -129,12 +129,12 @@ class PostUpdate
 	private static function update1297()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1297) {
+		if (DI::keyValue()->get('post_update_version') >= 1297) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('item-delivery-data')) {
-			DI::config()->set('system', 'post_update_version', 1297);
+			DI::keyValue()->set('post_update_version', 1297);
 			return true;
 		}
 
@@ -154,7 +154,7 @@ class PostUpdate
 
 		Logger::info('Processed rows: ' . DBA::affectedRows());
 
-		DI::config()->set('system', 'post_update_version', 1297);
+		DI::keyValue()->set('post_update_version', 1297);
 
 		Logger::info('Done');
 
@@ -169,7 +169,7 @@ class PostUpdate
 	private static function update1322()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1322) {
+		if (DI::keyValue()->get('post_update_version') >= 1322) {
 			return true;
 		}
 
@@ -188,7 +188,7 @@ class PostUpdate
 		}
 
 		DBA::close($contact);
-		DI::config()->set('system', 'post_update_version', 1322);
+		DI::keyValue()->set('post_update_version', 1322);
 
 		Logger::info('Done');
 
@@ -204,16 +204,16 @@ class PostUpdate
 	private static function update1329()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1329) {
+		if (DI::keyValue()->get('post_update_version') >= 1329) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('item')) {
-			DI::config()->set('system', 'post_update_version', 1329);
+			DI::keyValue()->set('post_update_version', 1329);
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1329_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1329_id') ?? 0;
 
 		Logger::info('Start', ['item' => $id]);
 
@@ -237,12 +237,12 @@ class PostUpdate
 		}
 		DBA::close($items);
 
-		DI::config()->set('system', 'post_update_version_1329_id', $id);
+		DI::keyValue()->set('post_update_version_1329_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		if ($start_id == $id) {
-			DI::config()->set('system', 'post_update_version', 1329);
+			DI::keyValue()->set('post_update_version', 1329);
 			Logger::info('Done');
 			return true;
 		}
@@ -259,16 +259,16 @@ class PostUpdate
 	private static function update1341()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1341) {
+		if (DI::keyValue()->get('post_update_version') >= 1341) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('item-content')) {
-			DI::config()->set('system', 'post_update_version', 1342);
+			DI::keyValue()->set('post_update_version', 1342);
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1341_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1341_id') ?? 0;
 
 		Logger::info('Start', ['item' => $id]);
 
@@ -288,19 +288,19 @@ class PostUpdate
 			$id = $item['uri-id'];
 			++$rows;
 			if ($rows % 1000 == 0) {
-				DI::config()->set('system', 'post_update_version_1341_id', $id);
+				DI::keyValue()->set('post_update_version_1341_id', $id);
 			}
 		}
 		DBA::close($items);
 
-		DI::config()->set('system', 'post_update_version_1341_id', $id);
+		DI::keyValue()->set('post_update_version_1341_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		// When there are less than 1,000 items processed this means that we reached the end
 		// The other entries will then be processed with the regular functionality
 		if ($rows < 1000) {
-			DI::config()->set('system', 'post_update_version', 1341);
+			DI::keyValue()->set('post_update_version', 1341);
 			Logger::info('Done');
 			return true;
 		}
@@ -317,16 +317,16 @@ class PostUpdate
 	private static function update1342()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1342) {
+		if (DI::keyValue()->get('post_update_version') >= 1342) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('term') || !DBStructure::existsTable('item-content')) {
-			DI::config()->set('system', 'post_update_version', 1342);
+			DI::keyValue()->set('post_update_version', 1342);
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1342_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1342_id') ?? 0;
 
 		Logger::info('Start', ['item' => $id]);
 
@@ -364,19 +364,19 @@ class PostUpdate
 			$id = $term['tid'];
 			++$rows;
 			if ($rows % 1000 == 0) {
-				DI::config()->set('system', 'post_update_version_1342_id', $id);
+				DI::keyValue()->set('post_update_version_1342_id', $id);
 			}
 		}
 		DBA::close($terms);
 
-		DI::config()->set('system', 'post_update_version_1342_id', $id);
+		DI::keyValue()->set('post_update_version_1342_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		// When there are less than 1,000 items processed this means that we reached the end
 		// The other entries will then be processed with the regular functionality
 		if ($rows < 1000) {
-			DI::config()->set('system', 'post_update_version', 1342);
+			DI::keyValue()->set('post_update_version', 1342);
 			Logger::info('Done');
 			return true;
 		}
@@ -393,16 +393,16 @@ class PostUpdate
 	private static function update1345()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1345) {
+		if (DI::keyValue()->get('post_update_version') >= 1345) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('item-delivery-data')) {
-			DI::config()->set('system', 'post_update_version', 1345);
+			DI::keyValue()->set('post_update_version', 1345);
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1345_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1345_id') ?? 0;
 
 		Logger::info('Start', ['item' => $id]);
 
@@ -427,14 +427,14 @@ class PostUpdate
 		}
 		DBA::close($deliveries);
 
-		DI::config()->set('system', 'post_update_version_1345_id', $id);
+		DI::keyValue()->set('post_update_version_1345_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		// When there are less than 100 items processed this means that we reached the end
 		// The other entries will then be processed with the regular functionality
 		if ($rows < 100) {
-			DI::config()->set('system', 'post_update_version', 1345);
+			DI::keyValue()->set('post_update_version', 1345);
 			Logger::info('Done');
 			return true;
 		}
@@ -476,16 +476,16 @@ class PostUpdate
 	private static function update1346()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1346) {
+		if (DI::keyValue()->get('post_update_version') >= 1346) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('term')) {
-			DI::config()->set('system', 'post_update_version', 1346);
+			DI::keyValue()->set('post_update_version', 1346);
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1346_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1346_id') ?? 0;
 
 		Logger::info('Start', ['item' => $id]);
 
@@ -514,19 +514,19 @@ class PostUpdate
 			$id = $term['oid'];
 			++$rows;
 			if ($rows % 100 == 0) {
-				DI::config()->set('system', 'post_update_version_1346_id', $id);
+				DI::keyValue()->set('post_update_version_1346_id', $id);
 			}
 		}
 		DBA::close($terms);
 
-		DI::config()->set('system', 'post_update_version_1346_id', $id);
+		DI::keyValue()->set('post_update_version_1346_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		// When there are less than 10 items processed this means that we reached the end
 		// The other entries will then be processed with the regular functionality
 		if ($rows < 10) {
-			DI::config()->set('system', 'post_update_version', 1346);
+			DI::keyValue()->set('post_update_version', 1346);
 			Logger::info('Done');
 			return true;
 		}
@@ -544,16 +544,16 @@ class PostUpdate
 	private static function update1347()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1347) {
+		if (DI::keyValue()->get('post_update_version') >= 1347) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('item-activity') || !DBStructure::existsTable('item')) {
-			DI::config()->set('system', 'post_update_version', 1347);
+			DI::keyValue()->set('post_update_version', 1347);
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1347_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1347_id') ?? 0;
 
 		Logger::info('Start', ['item' => $id]);
 
@@ -588,12 +588,12 @@ class PostUpdate
 		}
 		DBA::close($items);
 
-		DI::config()->set('system', 'post_update_version_1347_id', $id);
+		DI::keyValue()->set('post_update_version_1347_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		if ($start_id == $id) {
-			DI::config()->set('system', 'post_update_version', 1347);
+			DI::keyValue()->set('post_update_version', 1347);
 			Logger::info('Done');
 			return true;
 		}
@@ -611,11 +611,11 @@ class PostUpdate
 	private static function update1348()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1348) {
+		if (DI::keyValue()->get('post_update_version') >= 1348) {
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1348_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1348_id') ?? 0;
 
 		Logger::info('Start', ['contact' => $id]);
 
@@ -641,12 +641,12 @@ class PostUpdate
 		}
 		DBA::close($contacts);
 
-		DI::config()->set('system', 'post_update_version_1348_id', $id);
+		DI::keyValue()->set('post_update_version_1348_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		if ($start_id == $id) {
-			DI::config()->set('system', 'post_update_version', 1348);
+			DI::keyValue()->set('post_update_version', 1348);
 			Logger::info('Done');
 			return true;
 		}
@@ -664,11 +664,11 @@ class PostUpdate
 	private static function update1349()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1349) {
+		if (DI::keyValue()->get('post_update_version') >= 1349) {
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1349_id', '');
+		$id = DI::keyValue()->get('post_update_version_1349_id') ?? '';
 
 		Logger::info('Start', ['apcontact' => $id]);
 
@@ -694,12 +694,12 @@ class PostUpdate
 		}
 		DBA::close($apcontacts);
 
-		DI::config()->set('system', 'post_update_version_1349_id', $id);
+		DI::keyValue()->set('post_update_version_1349_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		if ($start_id == $id) {
-			DI::config()->set('system', 'post_update_version', 1349);
+			DI::keyValue()->set('post_update_version', 1349);
 			Logger::info('Done');
 			return true;
 		}
@@ -717,7 +717,7 @@ class PostUpdate
 	private static function update1383()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1383) {
+		if (DI::keyValue()->get('post_update_version') >= 1383) {
 			return true;
 		}
 
@@ -743,7 +743,7 @@ class PostUpdate
 		}
 		DBA::close($photos);
 
-		DI::config()->set('system', 'post_update_version', 1383);
+		DI::keyValue()->set('post_update_version', 1383);
 		Logger::info('Done', ['deleted' => $deleted]);
 		return true;
 	}
@@ -758,7 +758,7 @@ class PostUpdate
 	private static function update1384()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1384) {
+		if (DI::keyValue()->get('post_update_version') >= 1384) {
 			return true;
 		}
 
@@ -788,7 +788,7 @@ class PostUpdate
 		Logger::info('Processed', ['rows' => $rows]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1384);
+			DI::keyValue()->set('post_update_version', 1384);
 			Logger::info('Done');
 			return true;
 		}
@@ -806,12 +806,12 @@ class PostUpdate
 	private static function update1400()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1400) {
+		if (DI::keyValue()->get('post_update_version') >= 1400) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('item')) {
-			DI::config()->set('system', 'post_update_version', 1400);
+			DI::keyValue()->set('post_update_version', 1400);
 			return true;
 		}
 
@@ -835,7 +835,7 @@ class PostUpdate
 		Logger::info('Processed', ['rows' => $rows]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1400);
+			DI::keyValue()->set('post_update_version', 1400);
 			Logger::info('Done');
 			return true;
 		}
@@ -853,7 +853,7 @@ class PostUpdate
 	private static function update1424()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1424) {
+		if (DI::keyValue()->get('post_update_version') >= 1424) {
 			return true;
 		}
 
@@ -877,7 +877,7 @@ class PostUpdate
 		Logger::info('Processed', ['rows' => $rows]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1424);
+			DI::keyValue()->set('post_update_version', 1424);
 			Logger::info('Done');
 			return true;
 		}
@@ -895,12 +895,12 @@ class PostUpdate
 	private static function update1425()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1425) {
+		if (DI::keyValue()->get('post_update_version') >= 1425) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('fcontact')) {
-			DI::config()->set('system', 'post_update_version', 1425);
+			DI::keyValue()->set('post_update_version', 1425);
 			return true;
 		}
 
@@ -929,7 +929,7 @@ class PostUpdate
 		Logger::info('Processed', ['rows' => $rows]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1425);
+			DI::keyValue()->set('post_update_version', 1425);
 			Logger::info('Done');
 			return true;
 		}
@@ -947,7 +947,7 @@ class PostUpdate
 	private static function update1426()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1426) {
+		if (DI::keyValue()->get('post_update_version') >= 1426) {
 			return true;
 		}
 
@@ -976,7 +976,7 @@ class PostUpdate
 		Logger::info('Processed', ['rows' => $rows]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1426);
+			DI::keyValue()->set('post_update_version', 1426);
 			Logger::info('Done');
 			return true;
 		}
@@ -994,7 +994,7 @@ class PostUpdate
 	private static function update1427()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1427) {
+		if (DI::keyValue()->get('post_update_version') >= 1427) {
 			return true;
 		}
 
@@ -1023,7 +1023,7 @@ class PostUpdate
 		Logger::info('Processed', ['rows' => $rows]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1427);
+			DI::keyValue()->set('post_update_version', 1427);
 			Logger::info('Done');
 			return true;
 		}
@@ -1041,16 +1041,16 @@ class PostUpdate
 	private static function update1452()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1452) {
+		if (DI::keyValue()->get('post_update_version') >= 1452) {
 			return true;
 		}
 
 		if (!DBStructure::existsTable('conversation')) {
-			DI::config()->set('system', 'post_update_version', 1452);
+			DI::keyValue()->set('post_update_version', 1452);
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1452_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1452_id') ?? 0;
 
 		Logger::info('Start', ['uri-id' => $id]);
 
@@ -1089,12 +1089,12 @@ class PostUpdate
 
 		DBA::close($conversations);
 
-		DI::config()->set('system', 'post_update_version_1452_id', $id);
+		DI::keyValue()->set('post_update_version_1452_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id, 'last-received' => $received]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1452);
+			DI::keyValue()->set('post_update_version', 1452);
 			Logger::info('Done');
 			return true;
 		}
@@ -1113,7 +1113,7 @@ class PostUpdate
 	private static function update1483()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1483) {
+		if (DI::keyValue()->get('post_update_version') >= 1483) {
 			return true;
 		}
 
@@ -1129,7 +1129,7 @@ class PostUpdate
 		}
 		DBA::close($posts);
 
-		DI::config()->set('system', 'post_update_version', 1483);
+		DI::keyValue()->set('post_update_version', 1483);
 		Logger::info('Done');
 		return true;
 	}
@@ -1144,11 +1144,11 @@ class PostUpdate
 	private static function update1484()
 	{
 		// Was the script completed?
-		if (DI::config()->get('system', 'post_update_version') >= 1484) {
+		if (DI::keyValue()->get('post_update_version') >= 1484) {
 			return true;
 		}
 
-		$id = DI::config()->get('system', 'post_update_version_1484_id', 0);
+		$id = DI::keyValue()->get('post_update_version_1484_id') ?? 0;
 
 		Logger::info('Start', ['id' => $id]);
 
@@ -1172,12 +1172,12 @@ class PostUpdate
 		}
 		DBA::close($contacts);
 
-		DI::config()->set('system', 'post_update_version_1484_id', $id);
+		DI::keyValue()->set('post_update_version_1484_id', $id);
 
 		Logger::info('Processed', ['rows' => $rows, 'last' => $id]);
 
 		if ($rows <= 100) {
-			DI::config()->set('system', 'post_update_version', 1484);
+			DI::keyValue()->set('post_update_version', 1484);
 			Logger::info('Done');
 			return true;
 		}

src/Model/Contact.php

@@ -624,7 +624,7 @@ class Contact
 	public static function getPublicAndUserContactID(int $cid, int $uid): array
 	{
 		// We have to use the legacy function as long as the post update hasn't finished
-		if (DI::config()->get('system', 'post_update_version') < 1427) {
+		if (DI::keyValue()->get('post_update_version') < 1427) {
 			return self::legacyGetPublicAndUserContactID($cid, $uid);
 		}
 

src/Model/GServer.php

@@ -2145,7 +2145,7 @@ class GServer
 	 */
 	private static function discoverFederation()
 	{
-		$last = DI::config()->get('poco', 'last_federation_discovery');
+		$last = DI::keyValue()->get('poco_last_federation_discovery');
 
 		if ($last) {
 			$next = $last + (24 * 60 * 60);
@@ -2189,7 +2189,7 @@ class GServer
 			}
 		}
 
-		DI::config()->set('poco', 'last_federation_discovery', time());
+		DI::keyValue()->set('poco_last_federation_discovery', time());
 	}
 
 	/**

src/Module/Admin/DBSync.php

@@ -42,7 +42,7 @@ class DBSync extends BaseAdmin
 		switch ($action) {
 			case 'mark':
 				if ($update) {
-					DI::config()->set('database', 'update_' . $update, 'success');
+					DI::keyValue()->set('database_update_' . $update, 'success');
 					$curr = DI::config()->get('system', 'build');
 					if (intval($curr) == $update) {
 						DI::config()->set('system', 'build', intval($curr) + 1);
@@ -76,13 +76,13 @@ class DBSync extends BaseAdmin
 							$o = DI::l10n()->t("Executing %s failed with error: %s", $func, $retval);
 						} elseif ($retval === Update::SUCCESS) {
 							$o = DI::l10n()->t('Update %s was successfully applied.', $func);
-							DI::config()->set('database', $func, 'success');
+							DI::keyValue()->set(sprintf('database_%s', $func), 'success');
 						} else {
 							$o = DI::l10n()->t('Update %s did not return a status. Unknown if it succeeded.', $func);
 						}
 					} else {
 						$o = DI::l10n()->t('There was no additional update function %s that needed to be called.', $func) . "<br />";
-						DI::config()->set('database', $func, 'success');
+						DI::keyValue()->set(sprintf('database_%s', $func), 'success');
 					}
 
 					return $o;

src/Module/Admin/Summary.php

@@ -98,7 +98,7 @@ class Summary extends BaseAdmin
 			$warningtext[] = DI::l10n()->t('The last update failed. Please run "php bin/console.php dbstructure update" from the command line and have a look at the errors that might appear. (Some of the errors are possibly inside the logfile.)');
 		}
 
-		$last_worker_call = DI::config()->get('system', 'last_worker_execution', false);
+		$last_worker_call = DI::keyValue()->get('last_worker_execution');
 		if (!$last_worker_call) {
 			$warningtext[] = DI::l10n()->t('The worker was never executed. Please check your database structure!');
 		} elseif ((strtotime(DateTimeFormat::utcNow()) - strtotime($last_worker_call)) > 60 * 60) {

src/Module/Friendica.php

@@ -42,6 +42,7 @@ class Friendica extends BaseModule
 	protected function content(array $request = []): string
 	{
 		$config = DI::config();
+		$keyValue = DI::keyValue();
 
 		$visibleAddonList = Addon::getVisibleList();
 		if (!empty($visibleAddonList)) {
@@ -100,7 +101,7 @@ class Friendica extends BaseModule
 				'<strong>' . App::VERSION . '</strong>',
 				DI::baseUrl()->get(),
 				'<strong>' . $config->get('system', 'build') . '/' . DB_UPDATE_VERSION . '</strong>',
-				'<strong>' . $config->get('system', 'post_update_version') . '/' . PostUpdate::VERSION . '</strong>'),
+				'<strong>' . $keyValue->get('post_update_version') . '/' . PostUpdate::VERSION . '</strong>'),
 			'friendica' => DI::l10n()->t('Please visit <a href="https://friendi.ca">Friendi.ca</a> to learn more about the Friendica project.'),
 			'bugs'      => DI::l10n()->t('Bug reports and issues: please visit') . ' ' . '<a href="https://github.com/friendica/friendica/issues?state=open">' . DI::l10n()->t('the bugtracker at github') . '</a>',
 			'info'      => DI::l10n()->t('Suggestions, praise, etc. - please email "info" at "friendi - dot - ca'),

src/Worker/Cron.php

@@ -37,7 +37,7 @@ class Cron
 	{
 		$a = DI::app();
 
-		$last = DI::config()->get('system', 'last_cron');
+		$last = DI::keyValue()->get('last_cron');
 
 		$poll_interval = intval(DI::config()->get('system', 'cron_interval'));
 
@@ -84,7 +84,7 @@ class Cron
 		Worker::add(Worker::PRIORITY_LOW, 'PostUpdate');
 
 		// Hourly cron calls
-		if (DI::config()->get('system', 'last_cron_hourly', 0) + 3600 < time()) {
+		if ((DI::keyValue()->get('last_cron_hourly') ?? 0) + 3600 < time()) {
 
 
 			// Update trending tags cache for the community page
@@ -105,7 +105,7 @@ class Cron
 			// Clear cache entries
 			Worker::add(Worker::PRIORITY_LOW, 'ClearCache');
 
-			DI::config()->set('system', 'last_cron_hourly', time());
+			DI::keyValue()->set('last_cron_hourly', time());
 		}
 
 		// Daily maintenance cron calls
@@ -145,12 +145,12 @@ class Cron
 			// Resubscribe to relay servers
 			Relay::reSubscribe();
 
-			DI::config()->set('system', 'last_cron_daily', time());
+			DI::keyValue()->set('last_cron_daily', time());
 		}
 
 		Logger::notice('end');
 
-		DI::config()->set('system', 'last_cron', time());
+		DI::keyValue()->set('last_cron', time());
 	}
 
 	/**

src/Worker/PullDirectory.php

@@ -45,7 +45,7 @@ class PullDirectory
 			return;
 		}
 
-		$now = (int)DI::config()->get('system', 'last-directory-sync', 0);
+		$now = (int)(DI::keyValue()->get('last-directory-sync') ?? 0);
 
 		Logger::info('Synchronization started.', ['now' => $now, 'directory' => $directory]);
 
@@ -64,7 +64,7 @@ class PullDirectory
 		$result = Contact::addByUrls($contacts['results']);
 
 		$now = $contacts['now'] ?? 0;
-		DI::config()->set('system', 'last-directory-sync', $now);
+		DI::keyValue()->set('last-directory-sync', $now);
 
 		Logger::info('Synchronization ended', ['now' => $now, 'count' => $result['count'], 'added' => $result['added'], 'updated' => $result['updated'], 'unchanged' => $result['unchanged'], 'directory' => $directory]);
 	}

static/dbstructure.config.php

@@ -55,7 +55,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1504);
+	define('DB_UPDATE_VERSION', 1505);
 }
 
 return [
@@ -889,6 +889,17 @@ return [
 			"uid" => ["uid"],
 		]
 	],
+	"key-value" => [
+		"comment" => "A key value storage",
+		"fields" => [
+			"k" => ["type" => "varbinary(50)", "not null" => "1", "primary" => "1", "comment" => ""],
+			"v" => ["type" => "mediumtext", "comment" => ""],
+			"updated_at" => ["type" => "int unsigned", "not null" => "1", "comment" => "timestamp of the last update"],
+		],
+		"indexes" => [
+			"PRIMARY" => ["k"],
+		],
+	],
 	"locks" => [
 		"comment" => "",
 		"fields" => [

static/dependencies.config.php

@@ -245,6 +245,9 @@ return [
 			['getBackend', [], Dice::CHAIN_CALL],
 		],
 	],
+	\Friendica\Core\KeyValueStorage\Capabilities\IManageKeyValuePairs::class => [
+		'instanceOf' => \Friendica\Core\KeyValueStorage\Type\DBKeyValueStorage::class,
+	],
 	Network\HTTPClient\Capability\ICanSendHttpRequests::class => [
 		'instanceOf' => Network\HTTPClient\Factory\HttpClient::class,
 		'call'       => [

tests/src/Core/KeyValueStorage/DBKeyValueStorageTest.php

@@ -0,0 +1,96 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Test\src\Core\KeyValueStorage;
+
+use Friendica\Core\Config\ValueObject\Cache;
+use Friendica\Core\KeyValueStorage\Capabilities\IManageKeyValuePairs;
+use Friendica\Core\KeyValueStorage\Type\DBKeyValueStorage;
+use Friendica\Database\Database;
+use Friendica\Database\Definition\DbaDefinition;
+use Friendica\Database\Definition\ViewDefinition;
+use Friendica\Test\DatabaseTestTrait;
+use Friendica\Test\Util\Database\StaticDatabase;
+use Friendica\Util\BasePath;
+use Friendica\Util\Profiler;
+
+class DBKeyValueStorageTest extends KeyValueStorageTest
+{
+	use DatabaseTestTrait;
+
+	/** @var Database */
+	protected $database;
+
+	protected function setUp(): void
+	{
+		parent::setUp();
+
+		$this->setUpDb();
+	}
+
+	protected function tearDown(): void
+	{
+		parent::tearDown();
+
+		$this->tearDownDb();
+	}
+
+	public function getInstance(): IManageKeyValuePairs
+	{
+		$cache = new Cache();
+		$cache->set('database', 'disable_pdo', true);
+
+		$basePath = new BasePath(dirname(__FILE__, 5), $_SERVER);
+
+		$this->database = new StaticDatabase($cache, new Profiler($cache), (new DbaDefinition($basePath->getPath()))->load(), (new ViewDefinition($basePath->getPath()))->load());
+		$this->database->setTestmode(true);
+
+		return new DBKeyValueStorage($this->database);
+	}
+
+	/** @dataProvider dataTests */
+	public function testUpdatedAt($k, $v)
+	{
+		$instance = $this->getInstance();
+
+		$instance->set($k, $v);
+
+		self::assertEquals($v, $instance->get($k));
+		self::assertEquals($v, $instance[$k]);
+
+		$entry = $this->database->selectFirst(DBKeyValueStorage::DB_KEY_VALUE_TABLE, ['updated_at'], ['k' => $k]);
+		self::assertNotEmpty($entry);
+
+		$updateAt = $entry['updated_at'];
+
+		$instance->set($k, 'another_value');
+
+		self::assertEquals('another_value', $instance->get($k));
+		self::assertEquals('another_value', $instance[$k]);
+
+		$entry = $this->database->selectFirst(DBKeyValueStorage::DB_KEY_VALUE_TABLE, ['updated_at'], ['k' => $k]);
+		self::assertNotEmpty($entry);
+
+		$updateAtAfter = $entry['updated_at'];
+
+		self::assertLessThanOrEqual($updateAt, $updateAtAfter);
+	}
+}

tests/src/Core/KeyValueStorage/KeyValueStorageTest.php

@@ -0,0 +1,105 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Test\src\Core\KeyValueStorage;
+
+use Friendica\Core\KeyValueStorage\Capabilities\IManageKeyValuePairs;
+use Friendica\Test\MockedTest;
+
+abstract class KeyValueStorageTest extends MockedTest
+{
+	abstract public function getInstance(): IManageKeyValuePairs;
+
+	public function testInstance()
+	{
+		$instance = $this->getInstance();
+
+		self::assertInstanceOf(IManageKeyValuePairs::class, $instance);
+	}
+
+	public function dataTests(): array
+	{
+		return [
+			'string'       => ['k' => 'data', 'v' => 'it'],
+			'boolTrue'     => ['k' => 'data', 'v' => true],
+			'boolFalse'    => ['k' => 'data', 'v' => false],
+			'integer'      => ['k' => 'data', 'v' => 235],
+			'decimal'      => ['k' => 'data', 'v' => 2.456],
+			'array'        => ['k' => 'data', 'v' => ['1', 2, '3', true, false]],
+			'boolIntTrue'  => ['k' => 'data', 'v' => 1],
+			'boolIntFalse' => ['k' => 'data', 'v' => 0],
+		];
+	}
+
+	/**
+	 * @dataProvider dataTests
+	 */
+	public function testGetSetDelete($k, $v)
+	{
+		$instance = $this->getInstance();
+
+		$instance->set($k, $v);
+
+		self::assertEquals($v, $instance->get($k));
+		self::assertEquals($v, $instance[$k]);
+
+		$instance->delete($k);
+
+		self::assertNull($instance->get($k));
+		self::assertNull($instance[$k]);
+	}
+
+	/**
+	 * @dataProvider dataTests
+	 */
+	public function testSetOverride($k, $v)
+	{
+		$instance = $this->getInstance();
+
+		$instance->set($k, $v);
+
+		self::assertEquals($v, $instance->get($k));
+		self::assertEquals($v, $instance[$k]);
+
+		$instance->set($k, 'another_value');
+
+		self::assertEquals('another_value', $instance->get($k));
+		self::assertEquals('another_value', $instance[$k]);
+	}
+
+	/**
+	 * @dataProvider dataTests
+	 */
+	public function testOffsetSetDelete($k, $v)
+	{
+		$instance = $this->getInstance();
+
+		$instance[$k] = $v;
+
+		self::assertEquals($v, $instance->get($k));
+		self::assertEquals($v, $instance[$k]);
+
+		unset($instance[$k]);
+
+		self::assertNull($instance->get($k));
+		self::assertNull($instance[$k]);
+	}
+}

tests/src/Core/Lock/DatabaseLockDriverTest.php

@@ -21,15 +21,16 @@
 
 namespace Friendica\Test\src\Core\Lock;
 
+use Friendica\Core\Config\ValueObject\Cache;
 use Friendica\Core\Lock\Type\DatabaseLock;
-use Friendica\Core\Config\Factory\Config;
-use Friendica\DI;
+use Friendica\Database\Database;
+use Friendica\Database\Definition\DbaDefinition;
+use Friendica\Database\Definition\ViewDefinition;
 use Friendica\Test\DatabaseTestTrait;
 use Friendica\Test\Util\Database\StaticDatabase;
 use Friendica\Test\Util\VFSTrait;
+use Friendica\Util\BasePath;
 use Friendica\Util\Profiler;
-use Mockery;
-use Psr\Log\NullLogger;
 
 class DatabaseLockDriverTest extends LockTest
 {
@@ -38,6 +39,9 @@ class DatabaseLockDriverTest extends LockTest
 
 	protected $pid = 123;
 
+	/** @var Database */
+	protected $database;
+
 	protected function setUp(): void
 	{
 		$this->setUpVfsDir();
@@ -49,7 +53,15 @@ class DatabaseLockDriverTest extends LockTest
 
 	protected function getInstance()
 	{
-		return new DatabaseLock(DI::dba(), $this->pid);
+		$cache = new Cache();
+		$cache->set('database', 'disable_pdo', true);
+
+		$basePath = new BasePath(dirname(__FILE__, 5), $_SERVER);
+
+		$this->database = new StaticDatabase($cache, new Profiler($cache), (new DbaDefinition($basePath->getPath()))->load(), (new ViewDefinition($basePath->getPath()))->load());
+		$this->database->setTestmode(true);
+
+		return new DatabaseLock($this->database, $this->pid);
 	}
 
 	protected function tearDown(): void

update.php

@@ -982,7 +982,7 @@ function update_1429()
 		return Update::FAILED;
 	}
 
-	DI::config()->set('system', 'post_update_version', 1423);
+	DI::keyValue()->set('post_update_version', 1423);
 
 	return Update::SUCCESS;
 }
@@ -1145,3 +1145,33 @@ function update_1502()
 	DBA::e("UPDATE `pconfig` SET `cat` = 'calendar' WHERE `k` = 'first_day_of_week'");
 	return Update::SUCCESS;
 }
+
+function update_1505()
+{
+	$conditions = [
+		"((`cat`  = ?) AND ((`k` LIKE ?) OR (`k` = ?) OR (`k` LIKE ?) OR (`k` = ?))) OR " .
+		"((`cat` != ?) AND  (`k` LIKE ?)) OR " .
+		"((`cat`  = ?) AND  (`k` LIKE ?))",
+		"system",
+		"post_update_%",
+		"worker_last_cleaned",
+		"last%",
+		"worker_daemon_mode",
+		"system",
+		"last_%",
+		"database",
+		"update_%",
+	];
+
+	$postUpdateEntries = DBA::selectToArray('config', ['cat', 'k', 'v'], $conditions);
+
+	foreach ($postUpdateEntries as $postUpdateEntry) {
+		if ($postUpdateEntry['cat'] === 'system') {
+			DI::keyValue()->set($postUpdateEntry['k'], $postUpdateEntry['v']);
+		} else {
+			DI::keyValue()->set(sprintf('%s_%s', $postUpdateEntry['cat'], $postUpdateEntry['k']), $postUpdateEntry['v']);
+		}
+	}
+
+	return DBA::delete('config', $conditions) ? Update::SUCCESS : Update::FAILED;
+}