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authorMaxence Lange <maxence@artificial-owl.com>2023-11-07 15:55:24 -0100
committerGitHub <noreply@github.com>2023-11-07 15:55:24 -0100
commitd9c24f6c7b8b9135817054e00d8b23bfae9c7da2 (patch)
treee3a284e7f08599b0e1fd793ac704a40f182a30ca
parent3e6642ab0b4d0a95ef4ebff8553ae93a6b9e6d00 (diff)
parent363153626175532f471db0dd09e9421d1264765c (diff)
downloadnextcloud-server-d9c24f6c7b8b9135817054e00d8b23bfae9c7da2.tar.gz
nextcloud-server-d9c24f6c7b8b9135817054e00d8b23bfae9c7da2.zip
Merge pull request #40761 from nextcloud/enh/noid/files-metadata
IFilesMetadata
-rw-r--r--apps/dav/lib/Connector/Sabre/FilesPlugin.php9
-rw-r--r--apps/dav/lib/Files/FileSearchBackend.php102
-rw-r--r--apps/dav/lib/Server.php5
-rw-r--r--apps/dav/tests/unit/Files/FileSearchBackendTest.php5
-rw-r--r--apps/files/lib/Command/Scan.php15
-rw-r--r--apps/files_trashbin/lib/Trash/TrashItem.php10
-rw-r--r--core/Command/FilesMetadata/Get.php119
-rw-r--r--core/Migrations/Version28000Date20231004103301.php83
-rw-r--r--core/register_command.php2
-rw-r--r--lib/composer/composer/autoload_classmap.php22
-rw-r--r--lib/composer/composer/autoload_static.php22
-rw-r--r--lib/private/Files/Cache/CacheQueryBuilder.php3
-rw-r--r--lib/private/Files/Cache/QuerySearchHelper.php70
-rw-r--r--lib/private/Files/Cache/SearchBuilder.php97
-rw-r--r--lib/private/Files/FileInfo.php9
-rw-r--r--lib/private/Files/Node/LazyFolder.php9
-rw-r--r--lib/private/Files/Node/Node.php11
-rw-r--r--lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php7
-rw-r--r--lib/private/Files/Search/SearchComparison.php42
-rw-r--r--lib/private/Files/Search/SearchOrder.php30
-rw-r--r--lib/private/FilesMetadata/FilesMetadataManager.php281
-rw-r--r--lib/private/FilesMetadata/Job/UpdateSingleMetadata.php67
-rw-r--r--lib/private/FilesMetadata/Listener/MetadataDelete.php64
-rw-r--r--lib/private/FilesMetadata/Listener/MetadataUpdate.php64
-rw-r--r--lib/private/FilesMetadata/Model/FilesMetadata.php589
-rw-r--r--lib/private/FilesMetadata/Model/MetadataQuery.php165
-rw-r--r--lib/private/FilesMetadata/Model/MetadataValueWrapper.php397
-rw-r--r--lib/private/FilesMetadata/Service/IndexRequestService.php195
-rw-r--r--lib/private/FilesMetadata/Service/MetadataRequestService.php160
-rw-r--r--lib/private/Server.php5
-rw-r--r--lib/public/Files/FileInfo.php9
-rw-r--r--lib/public/Files/Search/ISearchComparison.php15
-rw-r--r--lib/public/Files/Search/ISearchOrder.php13
-rw-r--r--lib/public/FilesMetadata/AMetadataEvent.php68
-rw-r--r--lib/public/FilesMetadata/Event/MetadataBackgroundEvent.php40
-rw-r--r--lib/public/FilesMetadata/Event/MetadataLiveEvent.php67
-rw-r--r--lib/public/FilesMetadata/Exceptions/FilesMetadataException.php34
-rw-r--r--lib/public/FilesMetadata/Exceptions/FilesMetadataKeyFormatException.php32
-rw-r--r--lib/public/FilesMetadata/Exceptions/FilesMetadataNotFoundException.php32
-rw-r--r--lib/public/FilesMetadata/Exceptions/FilesMetadataTypeException.php32
-rw-r--r--lib/public/FilesMetadata/IFilesMetadataManager.php139
-rw-r--r--lib/public/FilesMetadata/Model/IFilesMetadata.php343
-rw-r--r--lib/public/FilesMetadata/Model/IMetadataQuery.php90
-rw-r--r--lib/public/FilesMetadata/Model/IMetadataValueWrapper.php300
44 files changed, 3723 insertions, 150 deletions
diff --git a/apps/dav/lib/Connector/Sabre/FilesPlugin.php b/apps/dav/lib/Connector/Sabre/FilesPlugin.php
index 709a4cd68ed..9319327d094 100644
--- a/apps/dav/lib/Connector/Sabre/FilesPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/FilesPlugin.php
@@ -7,6 +7,7 @@
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Joas Schilling <coding@schilljs.com>
* @author Lukas Reschke <lukas@statuscode.ch>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Michael Jobst <mjobst+github@tecratech.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
@@ -49,8 +50,8 @@ use Sabre\DAV\IFile;
use Sabre\DAV\INode;
use Sabre\DAV\PropFind;
use Sabre\DAV\PropPatch;
-use Sabre\DAV\ServerPlugin;
use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
use Sabre\DAV\Tree;
use Sabre\HTTP\RequestInterface;
use Sabre\HTTP\ResponseInterface;
@@ -84,6 +85,7 @@ class FilesPlugin extends ServerPlugin {
public const SHARE_NOTE = '{http://nextcloud.org/ns}note';
public const SUBFOLDER_COUNT_PROPERTYNAME = '{http://nextcloud.org/ns}contained-folder-count';
public const SUBFILE_COUNT_PROPERTYNAME = '{http://nextcloud.org/ns}contained-file-count';
+ public const FILE_METADATA_PREFIX = '{http://nextcloud.org/ns}metadata-';
public const FILE_METADATA_SIZE = '{http://nextcloud.org/ns}file-metadata-size';
public const FILE_METADATA_GPS = '{http://nextcloud.org/ns}file-metadata-gps';
@@ -389,6 +391,11 @@ class FilesPlugin extends ServerPlugin {
$propFind->handle(self::CREATION_TIME_PROPERTYNAME, function () use ($node) {
return $node->getFileInfo()->getCreationTime();
});
+
+ foreach ($node->getFileInfo()->getMetadata() as $metadataKey => $metadataValue) {
+ $propFind->handle(self::FILE_METADATA_PREFIX . $metadataKey, $metadataValue);
+ }
+
/**
* Return file/folder name as displayname. The primary reason to
* implement it this way is to avoid costly fallback to
diff --git a/apps/dav/lib/Files/FileSearchBackend.php b/apps/dav/lib/Files/FileSearchBackend.php
index 524f90e6623..658ad34ec32 100644
--- a/apps/dav/lib/Files/FileSearchBackend.php
+++ b/apps/dav/lib/Files/FileSearchBackend.php
@@ -4,6 +4,7 @@
*
* @author Christian <16852529+cviereck@users.noreply.github.com>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
@@ -42,6 +43,9 @@ use OCP\Files\Node;
use OCP\Files\Search\ISearchOperator;
use OCP\Files\Search\ISearchOrder;
use OCP\Files\Search\ISearchQuery;
+use OCP\FilesMetadata\IFilesMetadataManager;
+use OCP\FilesMetadata\Model\IMetadataQuery;
+use OCP\FilesMetadata\Model\IMetadataValueWrapper;
use OCP\IUser;
use OCP\Share\IManager;
use Sabre\DAV\Exception\NotFound;
@@ -57,37 +61,14 @@ use SearchDAV\Query\Query;
class FileSearchBackend implements ISearchBackend {
public const OPERATOR_LIMIT = 100;
- /** @var CachingTree */
- private $tree;
-
- /** @var IUser */
- private $user;
-
- /** @var IRootFolder */
- private $rootFolder;
-
- /** @var IManager */
- private $shareManager;
-
- /** @var View */
- private $view;
-
- /**
- * FileSearchBackend constructor.
- *
- * @param CachingTree $tree
- * @param IUser $user
- * @param IRootFolder $rootFolder
- * @param IManager $shareManager
- * @param View $view
- * @internal param IRootFolder $rootFolder
- */
- public function __construct(CachingTree $tree, IUser $user, IRootFolder $rootFolder, IManager $shareManager, View $view) {
- $this->tree = $tree;
- $this->user = $user;
- $this->rootFolder = $rootFolder;
- $this->shareManager = $shareManager;
- $this->view = $view;
+ public function __construct(
+ private CachingTree $tree,
+ private IUser $user,
+ private IRootFolder $rootFolder,
+ private IManager $shareManager,
+ private View $view,
+ private IFilesMetadataManager $filesMetadataManager,
+ ) {
}
/**
@@ -115,7 +96,7 @@ class FileSearchBackend implements ISearchBackend {
// all valid scopes support the same schema
//todo dynamically load all propfind properties that are supported
- return [
+ $props = [
// queryable properties
new SearchPropertyDefinition('{DAV:}displayname', true, true, true),
new SearchPropertyDefinition('{DAV:}getcontenttype', true, true, true),
@@ -137,6 +118,33 @@ class FileSearchBackend implements ISearchBackend {
new SearchPropertyDefinition(FilesPlugin::FILE_METADATA_SIZE, true, false, false, SearchPropertyDefinition::DATATYPE_STRING),
new SearchPropertyDefinition(FilesPlugin::FILEID_PROPERTYNAME, true, false, false, SearchPropertyDefinition::DATATYPE_NONNEGATIVE_INTEGER),
];
+
+ return array_merge($props, $this->getPropertyDefinitionsForMetadata());
+ }
+
+
+ private function getPropertyDefinitionsForMetadata(): array {
+ $metadataProps = [];
+ $metadata = $this->filesMetadataManager->getKnownMetadata();
+ $indexes = $metadata->getIndexes();
+ foreach ($metadata->getKeys() as $key) {
+ $isIndex = in_array($key, $indexes);
+ $type = match ($metadata->getType($key)) {
+ IMetadataValueWrapper::TYPE_INT => SearchPropertyDefinition::DATATYPE_INTEGER,
+ IMetadataValueWrapper::TYPE_FLOAT => SearchPropertyDefinition::DATATYPE_DECIMAL,
+ IMetadataValueWrapper::TYPE_BOOL => SearchPropertyDefinition::DATATYPE_BOOLEAN,
+ default => SearchPropertyDefinition::DATATYPE_STRING
+ };
+ $metadataProps[] = new SearchPropertyDefinition(
+ FilesPlugin::FILE_METADATA_PREFIX . $key,
+ true,
+ $isIndex,
+ $isIndex,
+ $type
+ );
+ }
+
+ return $metadataProps;
}
/**
@@ -300,11 +308,20 @@ class FileSearchBackend implements ISearchBackend {
/**
* @param Query $query
+ *
* @return ISearchQuery
*/
private function transformQuery(Query $query): ISearchQuery {
+ $orders = array_map(function (Order $order): ISearchOrder {
+ $direction = $order->order === Order::ASC ? ISearchOrder::DIRECTION_ASCENDING : ISearchOrder::DIRECTION_DESCENDING;
+ if (str_starts_with($order->property->name, FilesPlugin::FILE_METADATA_PREFIX)) {
+ return new SearchOrder($direction, substr($order->property->name, strlen(FilesPlugin::FILE_METADATA_PREFIX)), IMetadataQuery::EXTRA);
+ } else {
+ return new SearchOrder($direction, $this->mapPropertyNameToColumn($order->property));
+ }
+ }, $query->orderBy);
+
$limit = $query->limit;
- $orders = array_map([$this, 'mapSearchOrder'], $query->orderBy);
$offset = $limit->firstResult;
$limitHome = false;
@@ -353,14 +370,6 @@ class FileSearchBackend implements ISearchBackend {
}
/**
- * @param Order $order
- * @return ISearchOrder
- */
- private function mapSearchOrder(Order $order) {
- return new SearchOrder($order->order === Order::ASC ? ISearchOrder::DIRECTION_ASCENDING : ISearchOrder::DIRECTION_DESCENDING, $this->mapPropertyNameToColumn($order->property));
- }
-
- /**
* @param Operator $operator
* @return ISearchOperator
*/
@@ -387,7 +396,16 @@ class FileSearchBackend implements ISearchBackend {
if (!($operator->arguments[1] instanceof Literal)) {
throw new \InvalidArgumentException('Invalid argument 2 for ' . $trimmedType . ' operation, expected literal');
}
- return new SearchComparison($trimmedType, $this->mapPropertyNameToColumn($operator->arguments[0]), $this->castValue($operator->arguments[0], $operator->arguments[1]->value));
+
+ $property = $operator->arguments[0];
+ $value = $this->castValue($property, $operator->arguments[1]->value);
+ if (str_starts_with($property->name, FilesPlugin::FILE_METADATA_PREFIX)) {
+ return new SearchComparison($trimmedType, substr($property->name, strlen(FilesPlugin::FILE_METADATA_PREFIX)), $value, IMetadataQuery::EXTRA);
+ } else {
+ return new SearchComparison($trimmedType, $this->mapPropertyNameToColumn($property), $value);
+ }
+
+ // no break
case Operator::OPERATION_IS_COLLECTION:
return new SearchComparison('eq', 'mimetype', ICacheEntry::DIRECTORY_MIMETYPE);
default:
diff --git a/apps/dav/lib/Server.php b/apps/dav/lib/Server.php
index 603e015fca9..15b97d028cc 100644
--- a/apps/dav/lib/Server.php
+++ b/apps/dav/lib/Server.php
@@ -11,6 +11,7 @@
* @author Joas Schilling <coding@schilljs.com>
* @author John Molakvoæ <skjnldsv@protonmail.com>
* @author Lukas Reschke <lukas@statuscode.ch>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
@@ -76,6 +77,7 @@ use OCA\DAV\Upload\ChunkingV2Plugin;
use OCP\AppFramework\Http\Response;
use OCP\Diagnostics\IEventLogger;
use OCP\EventDispatcher\IEventDispatcher;
+use OCP\FilesMetadata\IFilesMetadataManager;
use OCP\ICacheFactory;
use OCP\IRequest;
use OCP\Profiler\IProfiler;
@@ -316,7 +318,8 @@ class Server {
$user,
\OC::$server->getRootFolder(),
\OC::$server->getShareManager(),
- $view
+ $view,
+ \OCP\Server::get(IFilesMetadataManager::class)
));
$this->server->addPlugin(
new BulkUploadPlugin(
diff --git a/apps/dav/tests/unit/Files/FileSearchBackendTest.php b/apps/dav/tests/unit/Files/FileSearchBackendTest.php
index 715130d2fae..ea841140201 100644
--- a/apps/dav/tests/unit/Files/FileSearchBackendTest.php
+++ b/apps/dav/tests/unit/Files/FileSearchBackendTest.php
@@ -41,6 +41,7 @@ use OCP\Files\IRootFolder;
use OCP\Files\Search\ISearchBinaryOperator;
use OCP\Files\Search\ISearchComparison;
use OCP\Files\Search\ISearchQuery;
+use OCP\FilesMetadata\IFilesMetadataManager;
use OCP\IUser;
use OCP\Share\IManager;
use SearchDAV\Backend\SearchPropertyDefinition;
@@ -114,7 +115,9 @@ class FileSearchBackendTest extends TestCase {
->method('get')
->willReturn($this->searchFolder);
- $this->search = new FileSearchBackend($this->tree, $this->user, $this->rootFolder, $this->shareManager, $this->view);
+ $filesMetadataManager = $this->createMock(IFilesMetadataManager::class);
+
+ $this->search = new FileSearchBackend($this->tree, $this->user, $this->rootFolder, $this->shareManager, $this->view, $filesMetadataManager);
}
public function testSearchFilename(): void {
diff --git a/apps/files/lib/Command/Scan.php b/apps/files/lib/Command/Scan.php
index f5ac3627196..b1fc25bfe9b 100644
--- a/apps/files/lib/Command/Scan.php
+++ b/apps/files/lib/Command/Scan.php
@@ -11,6 +11,7 @@
* @author Joel S <joel.devbox@protonmail.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author martin.mattel@diemattels.at <martin.mattel@diemattels.at>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
@@ -37,17 +38,19 @@ use OC\Core\Command\Base;
use OC\Core\Command\InterruptedException;
use OC\DB\Connection;
use OC\DB\ConnectionAdapter;
+use OC\FilesMetadata\FilesMetadataManager;
+use OC\ForbiddenException;
+use OC\Metadata\MetadataManager;
+use OCP\EventDispatcher\IEventDispatcher;
use OCP\Files\Events\FileCacheUpdated;
use OCP\Files\Events\NodeAddedToCache;
use OCP\Files\Events\NodeRemovedFromCache;
use OCP\Files\File;
-use OC\ForbiddenException;
-use OC\Metadata\MetadataManager;
-use OCP\EventDispatcher\IEventDispatcher;
use OCP\Files\IRootFolder;
use OCP\Files\Mount\IMountPoint;
use OCP\Files\NotFoundException;
use OCP\Files\StorageNotAvailableException;
+use OCP\FilesMetadata\IFilesMetadataManager;
use OCP\IUserManager;
use Psr\Log\LoggerInterface;
use Symfony\Component\Console\Helper\Table;
@@ -69,6 +72,7 @@ class Scan extends Base {
private IUserManager $userManager,
private IRootFolder $rootFolder,
private MetadataManager $metadataManager,
+ private FilesMetadataManager $filesMetadataManager,
private IEventDispatcher $eventDispatcher,
private LoggerInterface $logger,
) {
@@ -140,6 +144,11 @@ class Scan extends Base {
if ($node instanceof File) {
$this->metadataManager->generateMetadata($node, false);
}
+
+ $this->filesMetadataManager->refreshMetadata(
+ $node,
+ IFilesMetadataManager::PROCESS_LIVE | IFilesMetadataManager::PROCESS_BACKGROUND
+ );
}
});
diff --git a/apps/files_trashbin/lib/Trash/TrashItem.php b/apps/files_trashbin/lib/Trash/TrashItem.php
index 3bfc905d3a1..99b2d3a1a2c 100644
--- a/apps/files_trashbin/lib/Trash/TrashItem.php
+++ b/apps/files_trashbin/lib/Trash/TrashItem.php
@@ -2,6 +2,7 @@
/**
* @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
*
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
@@ -23,6 +24,7 @@
namespace OCA\Files_Trashbin\Trash;
use OCP\Files\FileInfo;
+use OCP\FilesMetadata\Model\IFilesMetadata;
use OCP\IUser;
class TrashItem implements ITrashItem {
@@ -190,4 +192,12 @@ class TrashItem implements ITrashItem {
public function getParentId(): int {
return $this->fileInfo->getParentId();
}
+
+ /**
+ * @inheritDoc
+ * @return array<string, int|string|bool|float|string[]|int[]>
+ */
+ public function getMetadata(): array {
+ return $this->fileInfo->getMetadata();
+ }
}
diff --git a/core/Command/FilesMetadata/Get.php b/core/Command/FilesMetadata/Get.php
new file mode 100644
index 00000000000..99bc167f71d
--- /dev/null
+++ b/core/Command/FilesMetadata/Get.php
@@ -0,0 +1,119 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Core\Command\FilesMetadata;
+
+use OC\User\NoUserException;
+use OCP\Files\IRootFolder;
+use OCP\Files\NotFoundException;
+use OCP\Files\NotPermittedException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\IFilesMetadataManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Get extends Command {
+ public function __construct(
+ private IRootFolder $rootFolder,
+ private IFilesMetadataManager $filesMetadataManager,
+ ) {
+ parent::__construct();
+ }
+
+ protected function configure(): void {
+ $this->setName('metadata:get')
+ ->setDescription('get stored metadata about a file, by its id')
+ ->addArgument(
+ 'fileId',
+ InputArgument::REQUIRED,
+ 'id of the file document'
+ )
+ ->addArgument(
+ 'userId',
+ InputArgument::OPTIONAL,
+ 'file owner'
+ )
+ ->addOption(
+ 'as-array',
+ '',
+ InputOption::VALUE_NONE,
+ 'display metadata as a simple key=>value array'
+ )
+ ->addOption(
+ 'refresh',
+ '',
+ InputOption::VALUE_NONE,
+ 'refresh metadata'
+ )
+ ->addOption(
+ 'reset',
+ '',
+ InputOption::VALUE_NONE,
+ 'refresh metadata from scratch'
+ );
+ }
+
+ /**
+ * @throws NotPermittedException
+ * @throws FilesMetadataNotFoundException
+ * @throws NoUserException
+ * @throws NotFoundException
+ */
+ protected function execute(InputInterface $input, OutputInterface $output): int {
+ $fileId = (int)$input->getArgument('fileId');
+
+ if ($input->getOption('reset')) {
+ $this->filesMetadataManager->deleteMetadata($fileId);
+ if (!$input->getOption('refresh')) {
+ return self::SUCCESS;
+ }
+ }
+
+ if ($input->getOption('refresh')) {
+ $node = $this->rootFolder->getUserFolder($input->getArgument('userId'))->getById($fileId);
+ if (count($node) === 0) {
+ throw new NotFoundException();
+ }
+ $metadata = $this->filesMetadataManager->refreshMetadata(
+ $node[0],
+ IFilesMetadataManager::PROCESS_LIVE | IFilesMetadataManager::PROCESS_BACKGROUND
+ );
+ } else {
+ $metadata = $this->filesMetadataManager->getMetadata($fileId);
+ }
+
+ if ($input->getOption('as-array')) {
+ $output->writeln(json_encode($metadata->asArray(), JSON_PRETTY_PRINT));
+ } else {
+ $output->writeln(json_encode($metadata, JSON_PRETTY_PRINT));
+ }
+
+ return self::SUCCESS;
+ }
+}
diff --git a/core/Migrations/Version28000Date20231004103301.php b/core/Migrations/Version28000Date20231004103301.php
new file mode 100644
index 00000000000..3266bf3a440
--- /dev/null
+++ b/core/Migrations/Version28000Date20231004103301.php
@@ -0,0 +1,83 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Core\Migrations;
+
+use Closure;
+use OCP\DB\ISchemaWrapper;
+use OCP\DB\Types;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+
+class Version28000Date20231004103301 extends SimpleMigrationStep {
+ public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
+ /** @var ISchemaWrapper $schema */
+ $schema = $schemaClosure();
+ $updated = false;
+
+ if (!$schema->hasTable('files_metadata')) {
+ $table = $schema->createTable('files_metadata');
+ $table->addColumn('id', Types::BIGINT, [
+ 'autoincrement' => true,
+ 'notnull' => true,
+ 'length' => 15,
+ 'unsigned' => true,
+ ]);
+ $table->addColumn('file_id', Types::BIGINT, ['notnull' => false, 'length' => 15,]);
+ $table->addColumn('json', Types::TEXT);
+ $table->addColumn('sync_token', Types::STRING, ['length' => 15]);
+ $table->addColumn('last_update', Types::DATETIME);
+
+ $table->setPrimaryKey(['id']);
+ $table->addUniqueIndex(['file_id'], 'files_meta_fileid');
+ $updated = true;
+ }
+
+ if (!$schema->hasTable('files_metadata_index')) {
+ $table = $schema->createTable('files_metadata_index');
+ $table->addColumn('id', Types::BIGINT, [
+ 'autoincrement' => true,
+ 'notnull' => true,
+ 'length' => 15,
+ 'unsigned' => true,
+ ]);
+ $table->addColumn('file_id', Types::BIGINT, ['notnull' => false, 'length' => 15]);
+ $table->addColumn('meta_key', Types::STRING, ['notnull' => false, 'length' => 31]);
+ $table->addColumn('meta_value_string', Types::STRING, ['notnull' => false, 'length' => 63]);
+ $table->addColumn('meta_value_int', Types::BIGINT, ['notnull' => false, 'length' => 11]);
+
+ $table->setPrimaryKey(['id']);
+ $table->addIndex(['file_id', 'meta_key', 'meta_value_string'], 'f_meta_index');
+ $table->addIndex(['file_id', 'meta_key', 'meta_value_int'], 'f_meta_index_i');
+ $updated = true;
+ }
+
+ if (!$updated) {
+ return null;
+ }
+
+ return $schema;
+ }
+}
diff --git a/core/register_command.php b/core/register_command.php
index 975dcf6c05f..27863cfdc8d 100644
--- a/core/register_command.php
+++ b/core/register_command.php
@@ -19,6 +19,7 @@ declare(strict_types=1);
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Julius Härtl <jus@bitgrid.net>
* @author Lukas Reschke <lukas@statuscode.ch>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author michag86 <micha_g@arcor.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Patrik Kernstock <info@pkern.at>
@@ -215,6 +216,7 @@ if (\OC::$server->getConfig()->getSystemValue('installed', false)) {
$application->add(\OC::$server->get(\OC\Core\Command\Security\BruteforceAttempts::class));
$application->add(\OC::$server->get(\OC\Core\Command\Security\BruteforceResetAttempts::class));
$application->add(\OC::$server->get(\OC\Core\Command\SetupChecks::class));
+ $application->add(\OCP\Server::get(\OC\Core\Command\FilesMetadata\Get::class));
} else {
$application->add(\OC::$server->get(\OC\Core\Command\Maintenance\Install::class));
}
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index f6f3c6a3f29..aaba8312c44 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -287,6 +287,17 @@ return array(
'OCP\\Federation\\ICloudId' => $baseDir . '/lib/public/Federation/ICloudId.php',
'OCP\\Federation\\ICloudIdManager' => $baseDir . '/lib/public/Federation/ICloudIdManager.php',
'OCP\\Files' => $baseDir . '/lib/public/Files.php',
+ 'OCP\\FilesMetadata\\AMetadataEvent' => $baseDir . '/lib/public/FilesMetadata/AMetadataEvent.php',
+ 'OCP\\FilesMetadata\\Event\\MetadataBackgroundEvent' => $baseDir . '/lib/public/FilesMetadata/Event/MetadataBackgroundEvent.php',
+ 'OCP\\FilesMetadata\\Event\\MetadataLiveEvent' => $baseDir . '/lib/public/FilesMetadata/Event/MetadataLiveEvent.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataException' => $baseDir . '/lib/public/FilesMetadata/Exceptions/FilesMetadataException.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataKeyFormatException' => $baseDir . '/lib/public/FilesMetadata/Exceptions/FilesMetadataKeyFormatException.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataNotFoundException' => $baseDir . '/lib/public/FilesMetadata/Exceptions/FilesMetadataNotFoundException.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataTypeException' => $baseDir . '/lib/public/FilesMetadata/Exceptions/FilesMetadataTypeException.php',
+ 'OCP\\FilesMetadata\\IFilesMetadataManager' => $baseDir . '/lib/public/FilesMetadata/IFilesMetadataManager.php',
+ 'OCP\\FilesMetadata\\Model\\IFilesMetadata' => $baseDir . '/lib/public/FilesMetadata/Model/IFilesMetadata.php',
+ 'OCP\\FilesMetadata\\Model\\IMetadataQuery' => $baseDir . '/lib/public/FilesMetadata/Model/IMetadataQuery.php',
+ 'OCP\\FilesMetadata\\Model\\IMetadataValueWrapper' => $baseDir . '/lib/public/FilesMetadata/Model/IMetadataValueWrapper.php',
'OCP\\Files\\AlreadyExistsException' => $baseDir . '/lib/public/Files/AlreadyExistsException.php',
'OCP\\Files\\AppData\\IAppDataFactory' => $baseDir . '/lib/public/Files/AppData/IAppDataFactory.php',
'OCP\\Files\\Cache\\AbstractCacheEvent' => $baseDir . '/lib/public/Files/Cache/AbstractCacheEvent.php',
@@ -1025,6 +1036,7 @@ return array(
'OC\\Core\\Command\\Encryption\\SetDefaultModule' => $baseDir . '/core/Command/Encryption/SetDefaultModule.php',
'OC\\Core\\Command\\Encryption\\ShowKeyStorageRoot' => $baseDir . '/core/Command/Encryption/ShowKeyStorageRoot.php',
'OC\\Core\\Command\\Encryption\\Status' => $baseDir . '/core/Command/Encryption/Status.php',
+ 'OC\\Core\\Command\\FilesMetadata\\Get' => $baseDir . '/core/Command/FilesMetadata/Get.php',
'OC\\Core\\Command\\Group\\Add' => $baseDir . '/core/Command/Group/Add.php',
'OC\\Core\\Command\\Group\\AddUser' => $baseDir . '/core/Command/Group/AddUser.php',
'OC\\Core\\Command\\Group\\Delete' => $baseDir . '/core/Command/Group/Delete.php',
@@ -1198,6 +1210,7 @@ return array(
'OC\\Core\\Migrations\\Version28000Date20230728104802' => $baseDir . '/core/Migrations/Version28000Date20230728104802.php',
'OC\\Core\\Migrations\\Version28000Date20230803221055' => $baseDir . '/core/Migrations/Version28000Date20230803221055.php',
'OC\\Core\\Migrations\\Version28000Date20230906104802' => $baseDir . '/core/Migrations/Version28000Date20230906104802.php',
+ 'OC\\Core\\Migrations\\Version28000Date20231004103301' => $baseDir . '/core/Migrations/Version28000Date20231004103301.php',
'OC\\Core\\Notification\\CoreNotifier' => $baseDir . '/core/Notification/CoreNotifier.php',
'OC\\Core\\Service\\LoginFlowV2Service' => $baseDir . '/core/Service/LoginFlowV2Service.php',
'OC\\DB\\Adapter' => $baseDir . '/lib/private/DB/Adapter.php',
@@ -1282,6 +1295,15 @@ return array(
'OC\\Federation\\CloudFederationShare' => $baseDir . '/lib/private/Federation/CloudFederationShare.php',
'OC\\Federation\\CloudId' => $baseDir . '/lib/private/Federation/CloudId.php',
'OC\\Federation\\CloudIdManager' => $baseDir . '/lib/private/Federation/CloudIdManager.php',
+ 'OC\\FilesMetadata\\FilesMetadataManager' => $baseDir . '/lib/private/FilesMetadata/FilesMetadataManager.php',
+ 'OC\\FilesMetadata\\Job\\UpdateSingleMetadata' => $baseDir . '/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php',
+ 'OC\\FilesMetadata\\Listener\\MetadataDelete' => $baseDir . '/lib/private/FilesMetadata/Listener/MetadataDelete.php',
+ 'OC\\FilesMetadata\\Listener\\MetadataUpdate' => $baseDir . '/lib/private/FilesMetadata/Listener/MetadataUpdate.php',
+ 'OC\\FilesMetadata\\Model\\FilesMetadata' => $baseDir . '/lib/private/FilesMetadata/Model/FilesMetadata.php',
+ 'OC\\FilesMetadata\\Model\\MetadataQuery' => $baseDir . '/lib/private/FilesMetadata/Model/MetadataQuery.php',
+ 'OC\\FilesMetadata\\Model\\MetadataValueWrapper' => $baseDir . '/lib/private/FilesMetadata/Model/MetadataValueWrapper.php',
+ 'OC\\FilesMetadata\\Service\\IndexRequestService' => $baseDir . '/lib/private/FilesMetadata/Service/IndexRequestService.php',
+ 'OC\\FilesMetadata\\Service\\MetadataRequestService' => $baseDir . '/lib/private/FilesMetadata/Service/MetadataRequestService.php',
'OC\\Files\\AppData\\AppData' => $baseDir . '/lib/private/Files/AppData/AppData.php',
'OC\\Files\\AppData\\Factory' => $baseDir . '/lib/private/Files/AppData/Factory.php',
'OC\\Files\\Cache\\Cache' => $baseDir . '/lib/private/Files/Cache/Cache.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index f632db0e253..6c341797b79 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -320,6 +320,17 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
'OCP\\Federation\\ICloudId' => __DIR__ . '/../../..' . '/lib/public/Federation/ICloudId.php',
'OCP\\Federation\\ICloudIdManager' => __DIR__ . '/../../..' . '/lib/public/Federation/ICloudIdManager.php',
'OCP\\Files' => __DIR__ . '/../../..' . '/lib/public/Files.php',
+ 'OCP\\FilesMetadata\\AMetadataEvent' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/AMetadataEvent.php',
+ 'OCP\\FilesMetadata\\Event\\MetadataBackgroundEvent' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Event/MetadataBackgroundEvent.php',
+ 'OCP\\FilesMetadata\\Event\\MetadataLiveEvent' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Event/MetadataLiveEvent.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataException' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Exceptions/FilesMetadataException.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataKeyFormatException' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Exceptions/FilesMetadataKeyFormatException.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataNotFoundException' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Exceptions/FilesMetadataNotFoundException.php',
+ 'OCP\\FilesMetadata\\Exceptions\\FilesMetadataTypeException' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Exceptions/FilesMetadataTypeException.php',
+ 'OCP\\FilesMetadata\\IFilesMetadataManager' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/IFilesMetadataManager.php',
+ 'OCP\\FilesMetadata\\Model\\IFilesMetadata' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Model/IFilesMetadata.php',
+ 'OCP\\FilesMetadata\\Model\\IMetadataQuery' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Model/IMetadataQuery.php',
+ 'OCP\\FilesMetadata\\Model\\IMetadataValueWrapper' => __DIR__ . '/../../..' . '/lib/public/FilesMetadata/Model/IMetadataValueWrapper.php',
'OCP\\Files\\AlreadyExistsException' => __DIR__ . '/../../..' . '/lib/public/Files/AlreadyExistsException.php',
'OCP\\Files\\AppData\\IAppDataFactory' => __DIR__ . '/../../..' . '/lib/public/Files/AppData/IAppDataFactory.php',
'OCP\\Files\\Cache\\AbstractCacheEvent' => __DIR__ . '/../../..' . '/lib/public/Files/Cache/AbstractCacheEvent.php',
@@ -1058,6 +1069,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
'OC\\Core\\Command\\Encryption\\SetDefaultModule' => __DIR__ . '/../../..' . '/core/Command/Encryption/SetDefaultModule.php',
'OC\\Core\\Command\\Encryption\\ShowKeyStorageRoot' => __DIR__ . '/../../..' . '/core/Command/Encryption/ShowKeyStorageRoot.php',
'OC\\Core\\Command\\Encryption\\Status' => __DIR__ . '/../../..' . '/core/Command/Encryption/Status.php',
+ 'OC\\Core\\Command\\FilesMetadata\\Get' => __DIR__ . '/../../..' . '/core/Command/FilesMetadata/Get.php',
'OC\\Core\\Command\\Group\\Add' => __DIR__ . '/../../..' . '/core/Command/Group/Add.php',
'OC\\Core\\Command\\Group\\AddUser' => __DIR__ . '/../../..' . '/core/Command/Group/AddUser.php',
'OC\\Core\\Command\\Group\\Delete' => __DIR__ . '/../../..' . '/core/Command/Group/Delete.php',
@@ -1231,6 +1243,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
'OC\\Core\\Migrations\\Version28000Date20230728104802' => __DIR__ . '/../../..' . '/core/Migrations/Version28000Date20230728104802.php',
'OC\\Core\\Migrations\\Version28000Date20230803221055' => __DIR__ . '/../../..' . '/core/Migrations/Version28000Date20230803221055.php',
'OC\\Core\\Migrations\\Version28000Date20230906104802' => __DIR__ . '/../../..' . '/core/Migrations/Version28000Date20230906104802.php',
+ 'OC\\Core\\Migrations\\Version28000Date20231004103301' => __DIR__ . '/../../..' . '/core/Migrations/Version28000Date20231004103301.php',
'OC\\Core\\Notification\\CoreNotifier' => __DIR__ . '/../../..' . '/core/Notification/CoreNotifier.php',
'OC\\Core\\Service\\LoginFlowV2Service' => __DIR__ . '/../../..' . '/core/Service/LoginFlowV2Service.php',
'OC\\DB\\Adapter' => __DIR__ . '/../../..' . '/lib/private/DB/Adapter.php',
@@ -1315,6 +1328,15 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
'OC\\Federation\\CloudFederationShare' => __DIR__ . '/../../..' . '/lib/private/Federation/CloudFederationShare.php',
'OC\\Federation\\CloudId' => __DIR__ . '/../../..' . '/lib/private/Federation/CloudId.php',
'OC\\Federation\\CloudIdManager' => __DIR__ . '/../../..' . '/lib/private/Federation/CloudIdManager.php',
+ 'OC\\FilesMetadata\\FilesMetadataManager' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/FilesMetadataManager.php',
+ 'OC\\FilesMetadata\\Job\\UpdateSingleMetadata' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php',
+ 'OC\\FilesMetadata\\Listener\\MetadataDelete' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Listener/MetadataDelete.php',
+ 'OC\\FilesMetadata\\Listener\\MetadataUpdate' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Listener/MetadataUpdate.php',
+ 'OC\\FilesMetadata\\Model\\FilesMetadata' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Model/FilesMetadata.php',
+ 'OC\\FilesMetadata\\Model\\MetadataQuery' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Model/MetadataQuery.php',
+ 'OC\\FilesMetadata\\Model\\MetadataValueWrapper' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Model/MetadataValueWrapper.php',
+ 'OC\\FilesMetadata\\Service\\IndexRequestService' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Service/IndexRequestService.php',
+ 'OC\\FilesMetadata\\Service\\MetadataRequestService' => __DIR__ . '/../../..' . '/lib/private/FilesMetadata/Service/MetadataRequestService.php',
'OC\\Files\\AppData\\AppData' => __DIR__ . '/../../..' . '/lib/private/Files/AppData/AppData.php',
'OC\\Files\\AppData\\Factory' => __DIR__ . '/../../..' . '/lib/private/Files/AppData/Factory.php',
'OC\\Files\\Cache\\Cache' => __DIR__ . '/../../..' . '/lib/private/Files/Cache/Cache.php',
diff --git a/lib/private/Files/Cache/CacheQueryBuilder.php b/lib/private/Files/Cache/CacheQueryBuilder.php
index 34d2177b84e..f799d6aa72e 100644
--- a/lib/private/Files/Cache/CacheQueryBuilder.php
+++ b/lib/private/Files/Cache/CacheQueryBuilder.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
/**
* @copyright Copyright (c) 2019 Robin Appelman <robin@icewind.nl>
*
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
@@ -35,7 +36,7 @@ use Psr\Log\LoggerInterface;
* Query builder with commonly used helpers for filecache queries
*/
class CacheQueryBuilder extends QueryBuilder {
- private $alias = null;
+ private ?string $alias = null;
public function __construct(IDBConnection $connection, SystemConfig $systemConfig, LoggerInterface $logger) {
parent::__construct($connection, $systemConfig, $logger);
diff --git a/lib/private/Files/Cache/QuerySearchHelper.php b/lib/private/Files/Cache/QuerySearchHelper.php
index 15c089a0f11..ca54133a243 100644
--- a/lib/private/Files/Cache/QuerySearchHelper.php
+++ b/lib/private/Files/Cache/QuerySearchHelper.php
@@ -3,6 +3,7 @@
* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Tobias Kaminsky <tobias@kaminsky.me>
@@ -37,41 +38,24 @@ use OCP\Files\IRootFolder;
use OCP\Files\Mount\IMountPoint;
use OCP\Files\Search\ISearchBinaryOperator;
use OCP\Files\Search\ISearchQuery;
+use OCP\FilesMetadata\IFilesMetadataManager;
+use OCP\FilesMetadata\Model\IMetadataQuery;
use OCP\IDBConnection;
use OCP\IGroupManager;
use OCP\IUser;
use Psr\Log\LoggerInterface;
class QuerySearchHelper {
- /** @var IMimeTypeLoader */
- private $mimetypeLoader;
- /** @var IDBConnection */
- private $connection;
- /** @var SystemConfig */
- private $systemConfig;
- private LoggerInterface $logger;
- /** @var SearchBuilder */
- private $searchBuilder;
- /** @var QueryOptimizer */
- private $queryOptimizer;
- private IGroupManager $groupManager;
-
public function __construct(
- IMimeTypeLoader $mimetypeLoader,
- IDBConnection $connection,
- SystemConfig $systemConfig,
- LoggerInterface $logger,
- SearchBuilder $searchBuilder,
- QueryOptimizer $queryOptimizer,
- IGroupManager $groupManager,
+ private IMimeTypeLoader $mimetypeLoader,
+ private IDBConnection $connection,
+ private SystemConfig $systemConfig,
+ private LoggerInterface $logger,
+ private SearchBuilder $searchBuilder,
+ private QueryOptimizer $queryOptimizer,
+ private IGroupManager $groupManager,
+ private IFilesMetadataManager $filesMetadataManager,
) {
- $this->mimetypeLoader = $mimetypeLoader;
- $this->connection = $connection;
- $this->systemConfig = $systemConfig;
- $this->logger = $logger;
- $this->searchBuilder = $searchBuilder;
- $this->queryOptimizer = $queryOptimizer;
- $this->groupManager = $groupManager;
}
protected function getQueryBuilder() {
@@ -82,7 +66,12 @@ class QuerySearchHelper {
);
}
- protected function applySearchConstraints(CacheQueryBuilder $query, ISearchQuery $searchQuery, array $caches): void {
+ protected function applySearchConstraints(
+ CacheQueryBuilder $query,
+ ISearchQuery $searchQuery,
+ array $caches,
+ ?IMetadataQuery $metadataQuery = null
+ ): void {
$storageFilters = array_values(array_map(function (ICache $cache) {
return $cache->getQueryFilterForStorage();
}, $caches));
@@ -90,12 +79,12 @@ class QuerySearchHelper {
$filter = new SearchBinaryOperator(ISearchBinaryOperator::OPERATOR_AND, [$searchQuery->getSearchOperation(), $storageFilter]);
$this->queryOptimizer->processOperator($filter);
- $searchExpr = $this->searchBuilder->searchOperatorToDBExpr($query, $filter);
+ $searchExpr = $this->searchBuilder->searchOperatorToDBExpr($query, $filter, $metadataQuery);
if ($searchExpr) {
$query->andWhere($searchExpr);
}
- $this->searchBuilder->addSearchOrdersToQuery($query, $searchQuery->getOrder());
+ $this->searchBuilder->addSearchOrdersToQuery($query, $searchQuery->getOrder(), $metadataQuery);
if ($searchQuery->getLimit()) {
$query->setMaxResults($searchQuery->getLimit());
@@ -144,6 +133,20 @@ class QuerySearchHelper {
));
}
+
+ /**
+ * left join metadata and its indexes to the filecache table
+ *
+ * @param CacheQueryBuilder $query
+ *
+ * @return IMetadataQuery
+ */
+ protected function equipQueryForMetadata(CacheQueryBuilder $query): IMetadataQuery {
+ $metadataQuery = $this->filesMetadataManager->getMetadataQuery($query, 'file', 'fileid');
+ $metadataQuery->retrieveMetadata();
+ return $metadataQuery;
+ }
+
/**
* Perform a file system search in multiple caches
*
@@ -175,6 +178,7 @@ class QuerySearchHelper {
$query = $builder->selectFileCache('file', false);
$requestedFields = $this->searchBuilder->extractRequestedFields($searchQuery->getSearchOperation());
+
if (in_array('systemtag', $requestedFields)) {
$this->equipQueryForSystemTags($query, $this->requireUser($searchQuery));
}
@@ -182,12 +186,14 @@ class QuerySearchHelper {
$this->equipQueryForDavTags($query, $this->requireUser($searchQuery));
}
- $this->applySearchConstraints($query, $searchQuery, $caches);
+ $metadataQuery = $this->equipQueryForMetadata($query);
+ $this->applySearchConstraints($query, $searchQuery, $caches, $metadataQuery);
$result = $query->execute();
$files = $result->fetchAll();
- $rawEntries = array_map(function (array $data) {
+ $rawEntries = array_map(function (array $data) use ($metadataQuery) {
+ $data['metadata'] = $metadataQuery->extractMetadata($data)->asArray();
return Cache::cacheEntryFromData($data, $this->mimetypeLoader);
}, $files);
diff --git a/lib/private/Files/Cache/SearchBuilder.php b/lib/private/Files/Cache/SearchBuilder.php
index b9a70bbd39b..1f9a6af931b 100644
--- a/lib/private/Files/Cache/SearchBuilder.php
+++ b/lib/private/Files/Cache/SearchBuilder.php
@@ -3,6 +3,7 @@
* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Tobias Kaminsky <tobias@kaminsky.me>
@@ -32,6 +33,7 @@ use OCP\Files\Search\ISearchBinaryOperator;
use OCP\Files\Search\ISearchComparison;
use OCP\Files\Search\ISearchOperator;
use OCP\Files\Search\ISearchOrder;
+use OCP\FilesMetadata\Model\IMetadataQuery;
/**
* Tools for transforming search queries into database queries
@@ -76,7 +78,7 @@ class SearchBuilder {
return array_reduce($operator->getArguments(), function (array $fields, ISearchOperator $operator) {
return array_unique(array_merge($fields, $this->extractRequestedFields($operator)));
}, []);
- } elseif ($operator instanceof ISearchComparison) {
+ } elseif ($operator instanceof ISearchComparison && !$operator->getExtra()) {
return [$operator->getField()];
}
return [];
@@ -86,13 +88,21 @@ class SearchBuilder {
* @param IQueryBuilder $builder
* @param ISearchOperator[] $operators
*/
- public function searchOperatorArrayToDBExprArray(IQueryBuilder $builder, array $operators) {
- return array_filter(array_map(function ($operator) use ($builder) {
- return $this->searchOperatorToDBExpr($builder, $operator);
+ public function searchOperatorArrayToDBExprArray(
+ IQueryBuilder $builder,
+ array $operators,
+ ?IMetadataQuery $metadataQuery = null
+ ) {
+ return array_filter(array_map(function ($operator) use ($builder, $metadataQuery) {
+ return $this->searchOperatorToDBExpr($builder, $operator, $metadataQuery);
}, $operators));
}
- public function searchOperatorToDBExpr(IQueryBuilder $builder, ISearchOperator $operator) {
+ public function searchOperatorToDBExpr(
+ IQueryBuilder $builder,
+ ISearchOperator $operator,
+ ?IMetadataQuery $metadataQuery = null
+ ) {
$expr = $builder->expr();
if ($operator instanceof ISearchBinaryOperator) {
@@ -104,29 +114,37 @@ class SearchBuilder {
case ISearchBinaryOperator::OPERATOR_NOT:
$negativeOperator = $operator->getArguments()[0];
if ($negativeOperator instanceof ISearchComparison) {
- return $this->searchComparisonToDBExpr($builder, $negativeOperator, self::$searchOperatorNegativeMap);
+ return $this->searchComparisonToDBExpr($builder, $negativeOperator, self::$searchOperatorNegativeMap, $metadataQuery);
} else {
throw new \InvalidArgumentException('Binary operators inside "not" is not supported');
}
// no break
case ISearchBinaryOperator::OPERATOR_AND:
- return call_user_func_array([$expr, 'andX'], $this->searchOperatorArrayToDBExprArray($builder, $operator->getArguments()));
+ return call_user_func_array([$expr, 'andX'], $this->searchOperatorArrayToDBExprArray($builder, $operator->getArguments(), $metadataQuery));
case ISearchBinaryOperator::OPERATOR_OR:
- return call_user_func_array([$expr, 'orX'], $this->searchOperatorArrayToDBExprArray($builder, $operator->getArguments()));
+ return call_user_func_array([$expr, 'orX'], $this->searchOperatorArrayToDBExprArray($builder, $operator->getArguments(), $metadataQuery));
default:
throw new \InvalidArgumentException('Invalid operator type: ' . $operator->getType());
}
} elseif ($operator instanceof ISearchComparison) {
- return $this->searchComparisonToDBExpr($builder, $operator, self::$searchOperatorMap);
+ return $this->searchComparisonToDBExpr($builder, $operator, self::$searchOperatorMap, $metadataQuery);
} else {
throw new \InvalidArgumentException('Invalid operator type: ' . get_class($operator));
}
}
- private function searchComparisonToDBExpr(IQueryBuilder $builder, ISearchComparison $comparison, array $operatorMap) {
- $this->validateComparison($comparison);
+ private function searchComparisonToDBExpr(
+ IQueryBuilder $builder,
+ ISearchComparison $comparison,
+ array $operatorMap,
+ ?IMetadataQuery $metadataQuery = null
+ ) {
+ if ($comparison->getExtra()) {
+ [$field, $value, $type] = $this->getExtraOperatorField($comparison, $metadataQuery);
+ } else {
+ [$field, $value, $type] = $this->getOperatorFieldAndValue($comparison);
+ }
- [$field, $value, $type] = $this->getOperatorFieldAndValue($comparison);
if (isset($operatorMap[$type])) {
$queryOperator = $operatorMap[$type];
return $builder->expr()->$queryOperator($field, $this->getParameterForValue($builder, $value));
@@ -136,9 +154,12 @@ class SearchBuilder {
}
private function getOperatorFieldAndValue(ISearchComparison $operator) {
+ $this->validateComparison($operator);
+
$field = $operator->getField();
$value = $operator->getValue();
$type = $operator->getType();
+
if ($field === 'mimetype') {
$value = (string)$value;
if ($operator->getType() === ISearchComparison::COMPARE_EQUAL) {
@@ -213,6 +234,24 @@ class SearchBuilder {
}
}
+
+ private function getExtraOperatorField(ISearchComparison $operator, IMetadataQuery $metadataQuery): array {
+ $field = $operator->getField();
+ $value = $operator->getValue();
+ $type = $operator->getType();
+
+ switch($operator->getExtra()) {
+ case IMetadataQuery::EXTRA:
+ $metadataQuery->joinIndex($field); // join index table if not joined yet
+ $field = $metadataQuery->getMetadataValueField($field);
+ break;
+ default:
+ throw new \InvalidArgumentException('Invalid extra type: ' . $operator->getExtra());
+ }
+
+ return [$field, $value, $type];
+ }
+
private function getParameterForValue(IQueryBuilder $builder, $value) {
if ($value instanceof \DateTime) {
$value = $value->getTimestamp();
@@ -228,24 +267,32 @@ class SearchBuilder {
/**
* @param IQueryBuilder $query
* @param ISearchOrder[] $orders
+ * @param IMetadataQuery|null $metadataQuery
*/
- public function addSearchOrdersToQuery(IQueryBuilder $query, array $orders) {
+ public function addSearchOrdersToQuery(IQueryBuilder $query, array $orders, ?IMetadataQuery $metadataQuery = null): void {
foreach ($orders as $order) {
$field = $order->getField();
- if ($field === 'fileid') {
- $field = 'file.fileid';
- }
+ switch ($order->getExtra()) {
+ case IMetadataQuery::EXTRA:
+ $metadataQuery->joinIndex($field); // join index table if not joined yet
+ $field = $metadataQuery->getMetadataValueField($order->getField());
+ break;
- // Mysql really likes to pick an index for sorting if it can't fully satisfy the where
- // filter with an index, since search queries pretty much never are fully filtered by index
- // mysql often picks an index for sorting instead of the much more useful index for filtering.
- //
- // By changing the order by to an expression, mysql isn't smart enough to see that it could still
- // use the index, so it instead picks an index for the filtering
- if ($field === 'mtime') {
- $field = $query->func()->add($field, $query->createNamedParameter(0));
- }
+ default:
+ if ($field === 'fileid') {
+ $field = 'file.fileid';
+ }
+ // Mysql really likes to pick an index for sorting if it can't fully satisfy the where
+ // filter with an index, since search queries pretty much never are fully filtered by index
+ // mysql often picks an index for sorting instead of the much more useful index for filtering.
+ //
+ // By changing the order by to an expression, mysql isn't smart enough to see that it could still
+ // use the index, so it instead picks an index for the filtering
+ if ($field === 'mtime') {
+ $field = $query->func()->add($field, $query->createNamedParameter(0));
+ }
+ }
$query->addOrderBy($field, $order->getDirection());
}
}
diff --git a/lib/private/Files/FileInfo.php b/lib/private/Files/FileInfo.php
index 7800074460b..da0ae7e8d89 100644
--- a/lib/private/Files/FileInfo.php
+++ b/lib/private/Files/FileInfo.php
@@ -6,6 +6,7 @@
* @author Joas Schilling <coding@schilljs.com>
* @author Julius Härtl <jus@bitgrid.net>
* @author Lukas Reschke <lukas@statuscode.ch>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Piotr M <mrow4a@yahoo.com>
* @author Robin Appelman <robin@icewind.nl>
@@ -416,4 +417,12 @@ class FileInfo implements \OCP\Files\FileInfo, \ArrayAccess {
public function getParentId(): int {
return $this->data['parent'] ?? -1;
}
+
+ /**
+ * @inheritDoc
+ * @return array<string, int|string|bool|float|string[]|int[]>
+ */
+ public function getMetadata(): array {
+ return $this->data['metadata'] ?? [];
+ }
}
diff --git a/lib/private/Files/Node/LazyFolder.php b/lib/private/Files/Node/LazyFolder.php
index f13cdc0c4f9..393b3bbeb06 100644
--- a/lib/private/Files/Node/LazyFolder.php
+++ b/lib/private/Files/Node/LazyFolder.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
/**
* @copyright Copyright (c) 2020 Robin Appelman <robin@icewind.nl>
*
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
@@ -574,4 +575,12 @@ class LazyFolder implements Folder {
}
return $this->__call(__FUNCTION__, func_get_args());
}
+
+ /**
+ * @inheritDoc
+ * @return array<string, int|string|bool|float|string[]|int[]>
+ */
+ public function getMetadata(): array {
+ return $this->data['metadata'] ?? $this->__call(__FUNCTION__, func_get_args());
+ }
}
diff --git a/lib/private/Files/Node/Node.php b/lib/private/Files/Node/Node.php
index 385d45f1e3e..1fdedd844ae 100644
--- a/lib/private/Files/Node/Node.php
+++ b/lib/private/Files/Node/Node.php
@@ -7,6 +7,7 @@
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Joas Schilling <coding@schilljs.com>
* @author Julius Härtl <jus@bitgrid.net>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
@@ -43,7 +44,7 @@ use OCP\Files\NotPermittedException;
use OCP\Lock\LockedException;
use OCP\PreConditionNotMetException;
-// FIXME: this class really should be abstract
+// FIXME: this class really should be abstract (+1)
class Node implements INode {
/**
* @var \OC\Files\View $view
@@ -490,4 +491,12 @@ class Node implements INode {
public function getParentId(): int {
return $this->fileInfo->getParentId();
}
+
+ /**
+ * @inheritDoc
+ * @return array<string, int|string|bool|float|string[]|int[]>
+ */
+ public function getMetadata(): array {
+ return $this->fileInfo->getMetadata();
+ }
}
diff --git a/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php b/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php
index 0caa9b12a02..664402f1238 100644
--- a/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php
+++ b/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php
@@ -4,6 +4,9 @@ declare(strict_types=1);
/**
* @copyright Copyright (c) 2021 Robin Appelman <robin@icewind.nl>
*
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ * @author Robin Appelman <robin@icewind.nl>
+ *
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
@@ -48,7 +51,7 @@ class PathPrefixOptimizer extends QueryOptimizerStep {
}
public function processOperator(ISearchOperator &$operator) {
- if (!$this->useHashEq && $operator instanceof ISearchComparison && $operator->getField() === 'path' && $operator->getType() === ISearchComparison::COMPARE_EQUAL) {
+ if (!$this->useHashEq && $operator instanceof ISearchComparison && !$operator->getExtra() && $operator->getField() === 'path' && $operator->getType() === ISearchComparison::COMPARE_EQUAL) {
$operator->setQueryHint(ISearchComparison::HINT_PATH_EQ_HASH, false);
}
@@ -69,7 +72,7 @@ class PathPrefixOptimizer extends QueryOptimizerStep {
private function operatorPairIsPathPrefix(ISearchOperator $like, ISearchOperator $equal): bool {
return (
$like instanceof ISearchComparison && $equal instanceof ISearchComparison &&
- $like->getField() === 'path' && $equal->getField() === 'path' &&
+ !$like->getExtra() && !$equal->getExtra() && $like->getField() === 'path' && $equal->getField() === 'path' &&
$like->getType() === ISearchComparison::COMPARE_LIKE_CASE_SENSITIVE && $equal->getType() === ISearchComparison::COMPARE_EQUAL
&& $like->getValue() === SearchComparison::escapeLikeParameter($equal->getValue()) . '/%'
);
diff --git a/lib/private/Files/Search/SearchComparison.php b/lib/private/Files/Search/SearchComparison.php
index 122a1f730b4..4f9ac266397 100644
--- a/lib/private/Files/Search/SearchComparison.php
+++ b/lib/private/Files/Search/SearchComparison.php
@@ -1,7 +1,10 @@
<?php
+
+declare(strict_types=1);
/**
* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
*
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
@@ -25,48 +28,45 @@ namespace OC\Files\Search;
use OCP\Files\Search\ISearchComparison;
class SearchComparison implements ISearchComparison {
- /** @var string */
- private $type;
- /** @var string */
- private $field;
- /** @var string|integer|\DateTime */
- private $value;
- private $hints = [];
+ private array $hints = [];
- /**
- * SearchComparison constructor.
- *
- * @param string $type
- * @param string $field
- * @param \DateTime|int|string $value
- */
- public function __construct($type, $field, $value) {
- $this->type = $type;
- $this->field = $field;
- $this->value = $value;
+ public function __construct(
+ private string $type,
+ private string $field,
+ private \DateTime|int|string $value,
+ private string $extra = ''
+ ) {
}
/**
* @return string
*/
- public function getType() {
+ public function getType(): string {
return $this->type;
}
/**
* @return string
*/
- public function getField() {
+ public function getField(): string {
return $this->field;
}
/**
* @return \DateTime|int|string
*/
- public function getValue() {
+ public function getValue(): string|int|\DateTime {
return $this->value;
}
+ /**
+ * @return string
+ * @since 28.0.0
+ */
+ public function getExtra(): string {
+ return $this->extra;
+ }
+
public function getQueryHint(string $name, $default) {
return $this->hints[$name] ?? $default;
}
diff --git a/lib/private/Files/Search/SearchOrder.php b/lib/private/Files/Search/SearchOrder.php
index 1395a87ac72..de514262bf5 100644
--- a/lib/private/Files/Search/SearchOrder.php
+++ b/lib/private/Files/Search/SearchOrder.php
@@ -2,6 +2,7 @@
/**
* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
*
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
@@ -26,34 +27,33 @@ use OCP\Files\FileInfo;
use OCP\Files\Search\ISearchOrder;
class SearchOrder implements ISearchOrder {
- /** @var string */
- private $direction;
- /** @var string */
- private $field;
+ public function __construct(
+ private string $direction,
+ private string $field,
+ private string $extra = ''
+ ) {
+ }
/**
- * SearchOrder constructor.
- *
- * @param string $direction
- * @param string $field
+ * @return string
*/
- public function __construct($direction, $field) {
- $this->direction = $direction;
- $this->field = $field;
+ public function getDirection(): string {
+ return $this->direction;
}
/**
* @return string
*/
- public function getDirection() {
- return $this->direction;
+ public function getField(): string {
+ return $this->field;
}
/**
* @return string
+ * @since 28.0.0
*/
- public function getField() {
- return $this->field;
+ public function getExtra(): string {
+ return $this->extra;
}
public function sortFileInfo(FileInfo $a, FileInfo $b): int {
diff --git a/lib/private/FilesMetadata/FilesMetadataManager.php b/lib/private/FilesMetadata/FilesMetadataManager.php
new file mode 100644
index 00000000000..54310f934d7
--- /dev/null
+++ b/lib/private/FilesMetadata/FilesMetadataManager.php
@@ -0,0 +1,281 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata;
+
+use JsonException;
+use OC\FilesMetadata\Job\UpdateSingleMetadata;
+use OC\FilesMetadata\Listener\MetadataDelete;
+use OC\FilesMetadata\Listener\MetadataUpdate;
+use OC\FilesMetadata\Model\FilesMetadata;
+use OC\FilesMetadata\Model\MetadataQuery;
+use OC\FilesMetadata\Service\IndexRequestService;
+use OC\FilesMetadata\Service\MetadataRequestService;
+use OCP\BackgroundJob\IJobList;
+use OCP\DB\Exception;
+use OCP\DB\Exception as DBException;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\Files\Events\Node\NodeCreatedEvent;
+use OCP\Files\Events\Node\NodeDeletedEvent;
+use OCP\Files\Events\Node\NodeWrittenEvent;
+use OCP\Files\InvalidPathException;
+use OCP\Files\Node;
+use OCP\Files\NotFoundException;
+use OCP\FilesMetadata\Event\MetadataBackgroundEvent;
+use OCP\FilesMetadata\Event\MetadataLiveEvent;
+use OCP\FilesMetadata\Exceptions\FilesMetadataException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\IFilesMetadataManager;
+use OCP\FilesMetadata\Model\IFilesMetadata;
+use OCP\FilesMetadata\Model\IMetadataQuery;
+use OCP\FilesMetadata\Model\IMetadataValueWrapper;
+use OCP\IConfig;
+use Psr\Log\LoggerInterface;
+
+/**
+ * @inheritDoc
+ * @since 28.0.0
+ */
+class FilesMetadataManager implements IFilesMetadataManager {
+ public const CONFIG_KEY = 'files_metadata';
+ private const JSON_MAXSIZE = 100000;
+
+ private ?IFilesMetadata $all = null;
+
+ public function __construct(
+ private IEventDispatcher $eventDispatcher,
+ private IJobList $jobList,
+ private IConfig $config,
+ private LoggerInterface $logger,
+ private MetadataRequestService $metadataRequestService,
+ private IndexRequestService $indexRequestService,
+ ) {
+ }
+
+ /**
+ * @inheritDoc
+ *
+ * @param Node $node related node
+ * @param int $process type of process
+ *
+ * @return IFilesMetadata
+ * @throws FilesMetadataException if metadata are invalid
+ * @throws InvalidPathException if path to file is not valid
+ * @throws NotFoundException if file cannot be found
+ * @see self::PROCESS_BACKGROUND
+ * @see self::PROCESS_LIVE
+ * @since 28.0.0
+ */
+ public function refreshMetadata(
+ Node $node,
+ int $process = self::PROCESS_LIVE
+ ): IFilesMetadata {
+ try {
+ $metadata = $this->metadataRequestService->getMetadataFromFileId($node->getId());
+ } catch (FilesMetadataNotFoundException) {
+ $metadata = new FilesMetadata($node->getId());
+ }
+
+ // if $process is LIVE, we enforce LIVE
+ if ((self::PROCESS_LIVE & $process) !== 0) {
+ $event = new MetadataLiveEvent($node, $metadata);
+ } else {
+ $event = new MetadataBackgroundEvent($node, $metadata);
+ }
+
+ $this->eventDispatcher->dispatchTyped($event);
+ $this->saveMetadata($event->getMetadata());
+
+ // if requested, we add a new job for next cron to refresh metadata out of main thread
+ // if $process was set to LIVE+BACKGROUND, we run background process directly
+ if ($event instanceof MetadataLiveEvent && $event->isRunAsBackgroundJobRequested()) {
+ if ((self::PROCESS_BACKGROUND & $process) !== 0) {
+ return $this->refreshMetadata($node, self::PROCESS_BACKGROUND);
+ }
+
+ $this->jobList->add(UpdateSingleMetadata::class, [$node->getOwner()->getUID(), $node->getId()]);
+ }
+
+ return $metadata;
+ }
+
+ /**
+ * @param int $fileId file id
+ *
+ * @inheritDoc
+ * @return IFilesMetadata
+ * @throws FilesMetadataNotFoundException if not found
+ * @since 28.0.0
+ */
+ public function getMetadata(int $fileId): IFilesMetadata {
+ return $this->metadataRequestService->getMetadataFromFileId($fileId);
+ }
+
+ /**
+ * @param IFilesMetadata $filesMetadata metadata
+ *
+ * @inheritDoc
+ * @throws FilesMetadataException if metadata seems malformed
+ * @since 28.0.0
+ */
+ public function saveMetadata(IFilesMetadata $filesMetadata): void {
+ if ($filesMetadata->getFileId() === 0 || !$filesMetadata->updated()) {
+ return;
+ }
+
+ $json = json_encode($filesMetadata->jsonSerialize());
+ if (strlen($json) > self::JSON_MAXSIZE) {
+ throw new FilesMetadataException('json cannot exceed ' . self::JSON_MAXSIZE . ' characters long');
+ }
+
+ try {
+ if ($filesMetadata->getSyncToken() === '') {
+ $this->metadataRequestService->store($filesMetadata);
+ } else {
+ $this->metadataRequestService->updateMetadata($filesMetadata);
+ }
+ } catch (DBException $e) {
+ // most of the logged exception are the result of race condition
+ // between 2 simultaneous process trying to create/update metadata
+ $this->logger->warning('issue while saveMetadata', ['exception' => $e, 'metadata' => $filesMetadata]);
+
+ return;
+ }
+
+ // update indexes
+ foreach ($filesMetadata->getIndexes() as $index) {
+ try {
+ $this->indexRequestService->updateIndex($filesMetadata, $index);
+ } catch (DBException $e) {
+ $this->logger->warning('issue while updateIndex', ['exception' => $e]);
+ }
+ }
+
+ // update metadata types list
+ $current = $this->getKnownMetadata();
+ $current->import($filesMetadata->jsonSerialize(true));
+ $this->config->setAppValue('core', self::CONFIG_KEY, json_encode($current));
+ }
+
+ /**
+ * @param int $fileId file id
+ *
+ * @inheritDoc
+ * @since 28.0.0
+ */
+ public function deleteMetadata(int $fileId): void {
+ try {
+ $this->metadataRequestService->dropMetadata($fileId);
+ } catch (Exception $e) {
+ $this->logger->warning('issue while deleteMetadata', ['exception' => $e, 'fileId' => $fileId]);
+ }
+
+ try {
+ $this->indexRequestService->dropIndex($fileId);
+ } catch (Exception $e) {
+ $this->logger->warning('issue while deleteMetadata', ['exception' => $e, 'fileId' => $fileId]);
+ }
+ }
+
+ /**
+ * @param IQueryBuilder $qb
+ * @param string $fileTableAlias alias of the table that contains data about files
+ * @param string $fileIdField alias of the field that contains file ids
+ *
+ * @inheritDoc
+ * @return IMetadataQuery
+ * @see IMetadataQuery
+ * @since 28.0.0
+ */
+ public function getMetadataQuery(
+ IQueryBuilder $qb,
+ string $fileTableAlias,
+ string $fileIdField
+ ): IMetadataQuery {
+ return new MetadataQuery($qb, $this->getKnownMetadata(), $fileTableAlias, $fileIdField);
+ }
+
+ /**
+ * @inheritDoc
+ * @return IFilesMetadata
+ * @since 28.0.0
+ */
+ public function getKnownMetadata(): IFilesMetadata {
+ if (null !== $this->all) {
+ return $this->all;
+ }
+ $this->all = new FilesMetadata();
+
+ try {
+ $data = json_decode($this->config->getAppValue('core', self::CONFIG_KEY, '[]'), true, 127, JSON_THROW_ON_ERROR);
+ $this->all->import($data);
+ } catch (JsonException) {
+ $this->logger->warning('issue while reading stored list of metadata. Advised to run ./occ files:scan --all --generate-metadata');
+ }
+
+ return $this->all;
+ }
+
+ /**
+ * @param string $key metadata key
+ * @param string $type metadata type
+ * @param bool $indexed TRUE if metadata can be search
+ *
+ * @inheritDoc
+ * @since 28.0.0
+ * @see IMetadataValueWrapper::TYPE_INT
+ * @see IMetadataValueWrapper::TYPE_FLOAT
+ * @see IMetadataValueWrapper::TYPE_BOOL
+ * @see IMetadataValueWrapper::TYPE_ARRAY
+ * @see IMetadataValueWrapper::TYPE_STRING_LIST
+ * @see IMetadataValueWrapper::TYPE_INT_LIST
+ * @see IMetadataValueWrapper::TYPE_STRING
+ */
+ public function initMetadata(string $key, string $type, bool $indexed): void {
+ $current = $this->getKnownMetadata();
+ try {
+ if ($current->getType($key) === $type && $indexed === $current->isIndex($key)) {
+ return; // if key exists, with same type and indexed, we do nothing.
+ }
+ } catch (FilesMetadataNotFoundException) {
+ // if value does not exist, we keep on the writing of course
+ }
+
+ $current->import([$key => ['type' => $type, 'indexed' => $indexed]]);
+ $this->config->setAppValue('core', self::CONFIG_KEY, json_encode($current));
+ }
+
+ /**
+ * load listeners
+ *
+ * @param IEventDispatcher $eventDispatcher
+ */
+ public static function loadListeners(IEventDispatcher $eventDispatcher): void {
+ $eventDispatcher->addServiceListener(NodeCreatedEvent::class, MetadataUpdate::class);
+ $eventDispatcher->addServiceListener(NodeWrittenEvent::class, MetadataUpdate::class);
+ $eventDispatcher->addServiceListener(NodeDeletedEvent::class, MetadataDelete::class);
+ }
+}
diff --git a/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php b/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php
new file mode 100644
index 00000000000..d18c8aa3680
--- /dev/null
+++ b/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Job;
+
+use OC\FilesMetadata\FilesMetadataManager;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\QueuedJob;
+use OCP\Files\IRootFolder;
+use OCP\FilesMetadata\Event\MetadataLiveEvent;
+use OCP\FilesMetadata\IFilesMetadataManager;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Simple background job, created when requested by an app during the
+ * dispatch of MetadataLiveEvent.
+ * This background job will re-run the event to refresh metadata on a non-live thread.
+ *
+ * @see MetadataLiveEvent::requestBackgroundJob()
+ * @since 28.0.0
+ */
+class UpdateSingleMetadata extends QueuedJob {
+ public function __construct(
+ ITimeFactory $time,
+ private IRootFolder $rootFolder,
+ private FilesMetadataManager $filesMetadataManager,
+ private LoggerInterface $logger
+ ) {
+ parent::__construct($time);
+ }
+
+ protected function run($argument) {
+ [$userId, $fileId] = $argument;
+
+ try {
+ $node = $this->rootFolder->getUserFolder($userId)->getById($fileId);
+ if (count($node) > 0) {
+ $file = array_shift($node);
+ $this->filesMetadataManager->refreshMetadata($file, IFilesMetadataManager::PROCESS_BACKGROUND);
+ }
+ } catch (\Exception $e) {
+ $this->logger->warning('issue while running UpdateSingleMetadata', ['exception' => $e, 'userId' => $userId, 'fileId' => $fileId]);
+ }
+ }
+}
diff --git a/lib/private/FilesMetadata/Listener/MetadataDelete.php b/lib/private/FilesMetadata/Listener/MetadataDelete.php
new file mode 100644
index 00000000000..25c944475a9
--- /dev/null
+++ b/lib/private/FilesMetadata/Listener/MetadataDelete.php
@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Listener;
+
+use Exception;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+use OCP\Files\Events\Node\NodeDeletedEvent;
+use OCP\FilesMetadata\IFilesMetadataManager;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Handle file deletion event and remove stored metadata related to the deleted file
+ *
+ * @template-implements IEventListener<NodeDeletedEvent>
+ */
+class MetadataDelete implements IEventListener {
+ public function __construct(
+ private IFilesMetadataManager $filesMetadataManager,
+ private LoggerInterface $logger
+ ) {
+ }
+
+ /**
+ * @param Event $event
+ */
+ public function handle(Event $event): void {
+ if (!($event instanceof NodeDeletedEvent)) {
+ return;
+ }
+
+ try {
+ $nodeId = (int)$event->getNode()->getId();
+ if ($nodeId > 0) {
+ $this->filesMetadataManager->deleteMetadata($nodeId);
+ }
+ } catch (Exception $e) {
+ $this->logger->warning('issue while running MetadataDelete', ['exception' => $e]);
+ }
+ }
+}
diff --git a/lib/private/FilesMetadata/Listener/MetadataUpdate.php b/lib/private/FilesMetadata/Listener/MetadataUpdate.php
new file mode 100644
index 00000000000..395a852e9e3
--- /dev/null
+++ b/lib/private/FilesMetadata/Listener/MetadataUpdate.php
@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Listener;
+
+use Exception;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+use OCP\Files\Events\Node\NodeCreatedEvent;
+use OCP\Files\Events\Node\NodeWrittenEvent;
+use OCP\FilesMetadata\IFilesMetadataManager;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Handle file creation/modification events and initiate a new event related to the created/edited file.
+ * The generated new event is broadcast in order to obtain file related metadata from other apps.
+ * metadata will be stored in database.
+ *
+ * @template-implements IEventListener<NodeCreatedEvent|NodeWrittenEvent>
+ */
+class MetadataUpdate implements IEventListener {
+ public function __construct(
+ private IFilesMetadataManager $filesMetadataManager,
+ private LoggerInterface $logger
+ ) {
+ }
+
+ /**
+ * @param Event $event
+ */
+ public function handle(Event $event): void {
+ if (!($event instanceof NodeCreatedEvent) && !($event instanceof NodeWrittenEvent)) {
+ return;
+ }
+
+ try {
+ $this->filesMetadataManager->refreshMetadata($event->getNode());
+ } catch (Exception $e) {
+ $this->logger->warning('issue while running MetadataUpdate', ['exception' => $e]);
+ }
+ }
+}
diff --git a/lib/private/FilesMetadata/Model/FilesMetadata.php b/lib/private/FilesMetadata/Model/FilesMetadata.php
new file mode 100644
index 00000000000..a94c7a9b6ff
--- /dev/null
+++ b/lib/private/FilesMetadata/Model/FilesMetadata.php
@@ -0,0 +1,589 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Model;
+
+use JsonException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataKeyFormatException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataTypeException;
+use OCP\FilesMetadata\Model\IFilesMetadata;
+use OCP\FilesMetadata\Model\IMetadataValueWrapper;
+
+/**
+ * Model that represent metadata linked to a specific file.
+ *
+ * @inheritDoc
+ * @since 28.0.0
+ */
+class FilesMetadata implements IFilesMetadata {
+ /** @var array<string, MetadataValueWrapper> */
+ private array $metadata = [];
+ private bool $updated = false;
+ private int $lastUpdate = 0;
+ private string $syncToken = '';
+
+ public function __construct(
+ private int $fileId = 0
+ ) {
+ }
+
+ /**
+ * @inheritDoc
+ * @return int related file id
+ * @since 28.0.0
+ */
+ public function getFileId(): int {
+ return $this->fileId;
+ }
+
+ /**
+ * @inheritDoc
+ * @return int timestamp
+ * @since 28.0.0
+ */
+ public function lastUpdateTimestamp(): int {
+ return $this->lastUpdate;
+ }
+
+ /**
+ * @inheritDoc
+ * @return string token
+ * @since 28.0.0
+ */
+ public function getSyncToken(): string {
+ return $this->syncToken;
+ }
+
+ /**
+ * @inheritDoc
+ * @return string[] list of keys
+ * @since 28.0.0
+ */
+ public function getKeys(): array {
+ return array_keys($this->metadata);
+ }
+
+ /**
+ * @param string $needle metadata key to search
+ *
+ * @inheritDoc
+ * @return bool TRUE if key exist
+ * @since 28.0.0
+ */
+ public function hasKey(string $needle): bool {
+ return (in_array($needle, $this->getKeys()));
+ }
+
+ /**
+ * @inheritDoc
+ * @return string[] list of indexes
+ * @since 28.0.0
+ */
+ public function getIndexes(): array {
+ $indexes = [];
+ foreach ($this->getKeys() as $key) {
+ if ($this->metadata[$key]->isIndexed()) {
+ $indexes[] = $key;
+ }
+ }
+
+ return $indexes;
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return bool TRUE if key exists and is set as indexed
+ * @since 28.0.0
+ */
+ public function isIndex(string $key): bool {
+ return $this->metadata[$key]?->isIndexed() ?? false;
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return string metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function get(string $key): string {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getValueString();
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return int metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getInt(string $key): int {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getValueInt();
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return float metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getFloat(string $key): float {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getValueFloat();
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return bool metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getBool(string $key): bool {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getValueBool();
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return array metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getArray(string $key): array {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getValueArray();
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return string[] metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getStringList(string $key): array {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getValueStringList();
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return int[] metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getIntList(string $key): array {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getValueIntList();
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return string value type
+ * @throws FilesMetadataNotFoundException
+ * @see IMetadataValueWrapper::TYPE_STRING
+ * @see IMetadataValueWrapper::TYPE_INT
+ * @see IMetadataValueWrapper::TYPE_FLOAT
+ * @see IMetadataValueWrapper::TYPE_BOOL
+ * @see IMetadataValueWrapper::TYPE_ARRAY
+ * @see IMetadataValueWrapper::TYPE_STRING_LIST
+ * @see IMetadataValueWrapper::TYPE_INT_LIST
+ * @since 28.0.0
+ */
+ public function getType(string $key): string {
+ if (!array_key_exists($key, $this->metadata)) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ return $this->metadata[$key]->getType();
+ }
+
+ /**
+ * @param string $key metadata key
+ * @param string $value metadata value
+ * @param bool $index set TRUE if value must be indexed
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataKeyFormatException
+ * @since 28.0.0
+ */
+ public function set(string $key, string $value, bool $index = false): IFilesMetadata {
+ $this->confirmKeyFormat($key);
+ try {
+ if ($this->get($key) === $value && $index === $this->isIndex($key)) {
+ return $this; // we ignore if value and index have not changed
+ }
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
+ // if value does not exist, or type has changed, we keep on the writing
+ }
+
+ $meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_STRING);
+ $this->updated = true;
+ $this->metadata[$key] = $meta->setValueString($value)->setIndexed($index);
+
+ return $this;
+ }
+
+ /**
+ * @param string $key metadata key
+ * @param int $value metadata value
+ * @param bool $index set TRUE if value must be indexed
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataKeyFormatException
+ * @since 28.0.0
+ */
+ public function setInt(string $key, int $value, bool $index = false): IFilesMetadata {
+ $this->confirmKeyFormat($key);
+ try {
+ if ($this->getInt($key) === $value && $index === $this->isIndex($key)) {
+ return $this; // we ignore if value have not changed
+ }
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
+ // if value does not exist, or type has changed, we keep on the writing
+ }
+
+ $meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_INT);
+ $this->metadata[$key] = $meta->setValueInt($value)->setIndexed($index);
+ $this->updated = true;
+
+ return $this;
+ }
+
+ /**
+ * @param string $key metadata key
+ * @param float $value metadata value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataKeyFormatException
+ * @since 28.0.0
+ */
+ public function setFloat(string $key, float $value, bool $index = false): IFilesMetadata {
+ $this->confirmKeyFormat($key);
+ try {
+ if ($this->getFloat($key) === $value && $index === $this->isIndex($key)) {
+ return $this; // we ignore if value have not changed
+ }
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
+ // if value does not exist, or type has changed, we keep on the writing
+ }
+
+ $meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_FLOAT);
+ $this->metadata[$key] = $meta->setValueFloat($value)->setIndexed($index);
+ $this->updated = true;
+
+ return $this;
+ }
+
+
+ /**
+ * @param string $key metadata key
+ * @param bool $value metadata value
+ * @param bool $index set TRUE if value must be indexed
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataKeyFormatException
+ * @since 28.0.0
+ */
+ public function setBool(string $key, bool $value, bool $index = false): IFilesMetadata {
+ $this->confirmKeyFormat($key);
+ try {
+ if ($this->getBool($key) === $value && $index === $this->isIndex($key)) {
+ return $this; // we ignore if value have not changed
+ }
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
+ // if value does not exist, or type has changed, we keep on the writing
+ }
+
+ $meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_BOOL);
+ $this->metadata[$key] = $meta->setValueBool($value)->setIndexed($index);
+ $this->updated = true;
+
+ return $this;
+ }
+
+
+ /**
+ * @param string $key metadata key
+ * @param array $value metadata value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataKeyFormatException
+ * @since 28.0.0
+ */
+ public function setArray(string $key, array $value): IFilesMetadata {
+ $this->confirmKeyFormat($key);
+ try {
+ if ($this->getArray($key) === $value) {
+ return $this; // we ignore if value have not changed
+ }
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
+ // if value does not exist, or type has changed, we keep on the writing
+ }
+
+ $meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_ARRAY);
+ $this->metadata[$key] = $meta->setValueArray($value);
+ $this->updated = true;
+
+ return $this;
+ }
+
+ /**
+ * @param string $key metadata key
+ * @param string[] $value metadata value
+ * @param bool $index set TRUE if each values from the list must be indexed
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataKeyFormatException
+ * @since 28.0.0
+ */
+ public function setStringList(string $key, array $value, bool $index = false): IFilesMetadata {
+ $this->confirmKeyFormat($key);
+ try {
+ if ($this->getStringList($key) === $value) {
+ return $this; // we ignore if value have not changed
+ }
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
+ // if value does not exist, or type has changed, we keep on the writing
+ }
+
+ $meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_STRING_LIST);
+ $this->metadata[$key] = $meta->setValueStringList($value)->setIndexed($index);
+ $this->updated = true;
+
+ return $this;
+ }
+
+ /**
+ * @param string $key metadata key
+ * @param int[] $value metadata value
+ * @param bool $index set TRUE if each values from the list must be indexed
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataKeyFormatException
+ * @since 28.0.0
+ */
+ public function setIntList(string $key, array $value, bool $index = false): IFilesMetadata {
+ $this->confirmKeyFormat($key);
+ try {
+ if ($this->getIntList($key) === $value) {
+ return $this; // we ignore if value have not changed
+ }
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
+ // if value does not exist, or type has changed, we keep on the writing
+ }
+
+ $valueWrapper = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_STRING_LIST);
+ $this->metadata[$key] = $valueWrapper->setValueIntList($value)->setIndexed($index);
+ $this->updated = true;
+
+ return $this;
+ }
+
+ /**
+ * @param string $key metadata key
+ *
+ * @inheritDoc
+ * @return self
+ * @since 28.0.0
+ */
+ public function unset(string $key): IFilesMetadata {
+ if (!array_key_exists($key, $this->metadata)) {
+ return $this;
+ }
+
+ unset($this->metadata[$key]);
+ $this->updated = true;
+
+ return $this;
+ }
+
+ /**
+ * @param string $keyPrefix metadata key prefix
+ *
+ * @inheritDoc
+ * @return self
+ * @since 28.0.0
+ */
+ public function removeStartsWith(string $keyPrefix): IFilesMetadata {
+ if ($keyPrefix === '') {
+ return $this;
+ }
+
+ foreach ($this->getKeys() as $key) {
+ if (str_starts_with($key, $keyPrefix)) {
+ $this->unset($key);
+ }
+ }
+
+ return $this;
+ }
+
+ /**
+ * @param string $key
+ *
+ * @return void
+ * @throws FilesMetadataKeyFormatException
+ */
+ private function confirmKeyFormat(string $key): void {
+ $acceptedChars = ['-', '_'];
+ if (ctype_alnum(str_replace($acceptedChars, '', $key))) {
+ return;
+ }
+
+ throw new FilesMetadataKeyFormatException('key can only contains alphanumerical characters, and dash (-)');
+ }
+
+ /**
+ * @inheritDoc
+ * @return bool TRUE if metadata have been modified
+ * @since 28.0.0
+ */
+ public function updated(): bool {
+ return $this->updated;
+ }
+
+ public function jsonSerialize(bool $emptyValues = false): array {
+ $data = [];
+ foreach ($this->metadata as $metaKey => $metaValueWrapper) {
+ $data[$metaKey] = $metaValueWrapper->jsonSerialize($emptyValues);
+ }
+
+ return $data;
+ }
+
+ /**
+ * @return array<string, string|int|bool|float|string[]|int[]>
+ */
+ public function asArray(): array {
+ $data = [];
+ foreach ($this->metadata as $metaKey => $metaValueWrapper) {
+ try {
+ $data[$metaKey] = $metaValueWrapper->getValueAny();
+ } catch (FilesMetadataNotFoundException $e) {
+ // ignore exception
+ }
+ }
+
+ return $data;
+ }
+
+ /**
+ * @param array $data
+ *
+ * @inheritDoc
+ * @return IFilesMetadata
+ * @since 28.0.0
+ */
+ public function import(array $data): IFilesMetadata {
+ foreach ($data as $k => $v) {
+ $valueWrapper = new MetadataValueWrapper();
+ $this->metadata[$k] = $valueWrapper->import($v);
+ }
+ $this->updated = false;
+
+ return $this;
+ }
+
+ /**
+ * import data from database to configure this model
+ *
+ * @param array $data
+ * @param string $prefix
+ *
+ * @return IFilesMetadata
+ * @throws FilesMetadataNotFoundException
+ * @since 28.0.0
+ */
+ public function importFromDatabase(array $data, string $prefix = ''): IFilesMetadata {
+ try {
+ $this->syncToken = $data[$prefix . 'sync_token'] ?? '';
+
+ return $this->import(
+ json_decode(
+ $data[$prefix . 'json'] ?? '[]',
+ true,
+ 512,
+ JSON_THROW_ON_ERROR
+ )
+ );
+ } catch (JsonException $e) {
+ throw new FilesMetadataNotFoundException();
+ }
+ }
+}
diff --git a/lib/private/FilesMetadata/Model/MetadataQuery.php b/lib/private/FilesMetadata/Model/MetadataQuery.php
new file mode 100644
index 00000000000..9ff69e9516e
--- /dev/null
+++ b/lib/private/FilesMetadata/Model/MetadataQuery.php
@@ -0,0 +1,165 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Model;
+
+use OC\FilesMetadata\Service\IndexRequestService;
+use OC\FilesMetadata\Service\MetadataRequestService;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataTypeException;
+use OCP\FilesMetadata\Model\IFilesMetadata;
+use OCP\FilesMetadata\Model\IMetadataQuery;
+use OCP\FilesMetadata\Model\IMetadataValueWrapper;
+
+/**
+ * @inheritDoc
+ * @since 28.0.0
+ */
+class MetadataQuery implements IMetadataQuery {
+ private array $knownJoinedIndex = [];
+ public function __construct(
+ private IQueryBuilder $queryBuilder,
+ private IFilesMetadata $knownMetadata,
+ private string $fileTableAlias = 'fc',
+ private string $fileIdField = 'fileid',
+ private string $alias = 'meta',
+ private string $aliasIndexPrefix = 'meta_index'
+ ) {
+ }
+
+ /**
+ * @inheritDoc
+ * @see self::extractMetadata()
+ * @since 28.0.0
+ */
+ public function retrieveMetadata(): void {
+ $this->queryBuilder->selectAlias($this->alias . '.json', 'meta_json');
+ $this->queryBuilder->leftJoin(
+ $this->fileTableAlias, MetadataRequestService::TABLE_METADATA, $this->alias,
+ $this->queryBuilder->expr()->eq($this->fileTableAlias . '.' . $this->fileIdField, $this->alias . '.file_id')
+ );
+ }
+
+ /**
+ * @param array $row result row
+ *
+ * @inheritDoc
+ * @return IFilesMetadata metadata
+ * @see self::retrieveMetadata()
+ * @since 28.0.0
+ */
+ public function extractMetadata(array $row): IFilesMetadata {
+ $fileId = (array_key_exists($this->fileIdField, $row)) ? $row[$this->fileIdField] : 0;
+ $metadata = new FilesMetadata((int)$fileId);
+ try {
+ $metadata->importFromDatabase($row, $this->alias . '_');
+ } catch (FilesMetadataNotFoundException) {
+ // can be ignored as files' metadata are optional and might not exist in database
+ }
+
+ return $metadata;
+ }
+
+ /**
+ * @param string $metadataKey metadata key
+ * @param bool $enforce limit the request only to existing metadata
+ *
+ * @inheritDoc
+ * @since 28.0.0
+ */
+ public function joinIndex(string $metadataKey, bool $enforce = false): string {
+ if (array_key_exists($metadataKey, $this->knownJoinedIndex)) {
+ return $this->knownJoinedIndex[$metadataKey];
+ }
+
+ $aliasIndex = $this->aliasIndexPrefix . '_' . count($this->knownJoinedIndex);
+ $this->knownJoinedIndex[$metadataKey] = $aliasIndex;
+
+ $expr = $this->queryBuilder->expr();
+ $andX = $expr->andX($expr->eq($aliasIndex . '.file_id', $this->fileTableAlias . '.' . $this->fileIdField));
+ $andX->add($expr->eq($this->getMetadataKeyField($metadataKey), $this->queryBuilder->createNamedParameter($metadataKey)));
+
+ if ($enforce) {
+ $this->queryBuilder->rightJoin(
+ $this->fileTableAlias,
+ IndexRequestService::TABLE_METADATA_INDEX,
+ $aliasIndex,
+ $andX
+ );
+ } else {
+ $this->queryBuilder->leftJoin(
+ $this->fileTableAlias,
+ IndexRequestService::TABLE_METADATA_INDEX,
+ $aliasIndex,
+ $andX
+ );
+ }
+
+ return $aliasIndex;
+ }
+
+ /**
+ * @throws FilesMetadataNotFoundException
+ */
+ public function joinedTableAlias(string $metadataKey): string {
+ if (!array_key_exists($metadataKey, $this->knownJoinedIndex)) {
+ throw new FilesMetadataNotFoundException('table related to ' . $metadataKey . ' not initiated, you need to use leftJoin() first.');
+ }
+
+ return $this->knownJoinedIndex[$metadataKey];
+ }
+
+ /**
+ * @inheritDoc
+ *
+ * @param string $metadataKey metadata key
+ *
+ * @return string table field
+ * @throws FilesMetadataNotFoundException
+ * @since 28.0.0
+ */
+ public function getMetadataKeyField(string $metadataKey): string {
+ return $this->joinedTableAlias($metadataKey) . '.meta_key';
+ }
+
+ /**
+ * @inheritDoc
+ *
+ * @param string $metadataKey metadata key
+ *
+ * @return string table field
+ * @throws FilesMetadataNotFoundException if metadataKey is not known
+ * @throws FilesMetadataTypeException is metadataKey is not set as indexed
+ * @since 28.0.0
+ */
+ public function getMetadataValueField(string $metadataKey): string {
+ return match ($this->knownMetadata->getType($metadataKey)) {
+ IMetadataValueWrapper::TYPE_STRING => $this->joinedTableAlias($metadataKey) . '.meta_value_string',
+ IMetadataValueWrapper::TYPE_INT, IMetadataValueWrapper::TYPE_BOOL => $this->joinedTableAlias($metadataKey) . '.meta_value_int',
+ default => throw new FilesMetadataTypeException('metadata is not set as indexed'),
+ };
+ }
+}
diff --git a/lib/private/FilesMetadata/Model/MetadataValueWrapper.php b/lib/private/FilesMetadata/Model/MetadataValueWrapper.php
new file mode 100644
index 00000000000..159cd1e6fd1
--- /dev/null
+++ b/lib/private/FilesMetadata/Model/MetadataValueWrapper.php
@@ -0,0 +1,397 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Model;
+
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataTypeException;
+use OCP\FilesMetadata\Model\IMetadataValueWrapper;
+
+/**
+ * @inheritDoc
+ * @see IFilesMetadata
+ * @since 28.0.0
+ */
+class MetadataValueWrapper implements IMetadataValueWrapper {
+ private string $type;
+ /** @var string|int|float|bool|array|string[]|int[] */
+ private mixed $value = null;
+ private bool $indexed = false;
+
+ /**
+ * @param string $type value type
+ *
+ * @inheritDoc
+ * @see self::TYPE_INT
+ * @see self::TYPE_FLOAT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @since 28.0.0
+ */
+ public function __construct(string $type = '') {
+ $this->type = $type;
+ }
+
+ /**
+ * @inheritDoc
+ * @return string value type
+ * @see self::TYPE_INT
+ * @see self::TYPE_FLOAT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @since 28.0.0
+ */
+ public function getType(): string {
+ return $this->type;
+ }
+
+ /**
+ * @param string $type value type
+ *
+ * @inheritDoc
+ * @return bool
+ * @see self::TYPE_INT
+ * @see self::TYPE_FLOAT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @since 28.0.0
+ */
+ public function isType(string $type): bool {
+ return (strtolower($type) === strtolower($this->type));
+ }
+
+ /**
+ * @param string $type value type
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if type cannot be confirmed
+ * @see self::TYPE_INT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @see self::TYPE_FLOAT
+ * @since 28.0.0
+ */
+ public function assertType(string $type): self {
+ if (!$this->isType($type)) {
+ throw new FilesMetadataTypeException('type is \'' . $this->getType() . '\', expecting \'' . $type . '\'');
+ }
+
+ return $this;
+ }
+
+ /**
+ * @param string $value string to be set as value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string
+ * @since 28.0.0
+ */
+ public function setValueString(string $value): self {
+ $this->assertType(self::TYPE_STRING);
+ $this->value = $value;
+
+ return $this;
+ }
+
+ /**
+ * @param int $value int to be set as value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int
+ * @since 28.0.0
+ */
+ public function setValueInt(int $value): self {
+ $this->assertType(self::TYPE_INT);
+ $this->value = $value;
+
+ return $this;
+ }
+
+ /**
+ * @param float $value float to be set as value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a float
+ * @since 28.0.0
+ */
+ public function setValueFloat(float $value): self {
+ $this->assertType(self::TYPE_FLOAT);
+ $this->value = $value;
+
+ return $this;
+ }
+
+ /**
+ * @param bool $value bool to be set as value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a bool
+ * @since 28.0.0
+ */
+ public function setValueBool(bool $value): self {
+ $this->assertType(self::TYPE_BOOL);
+ $this->value = $value;
+
+
+ return $this;
+ }
+
+ /**
+ * @param array $value array to be set as value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store an array
+ * @since 28.0.0
+ */
+ public function setValueArray(array $value): self {
+ $this->assertType(self::TYPE_ARRAY);
+ $this->value = $value;
+
+ return $this;
+ }
+
+ /**
+ * @param string[] $value string list to be set as value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string list
+ * @since 28.0.0
+ */
+ public function setValueStringList(array $value): self {
+ $this->assertType(self::TYPE_STRING_LIST);
+ // TODO confirm value is an array or string ?
+ $this->value = $value;
+
+ return $this;
+ }
+
+ /**
+ * @param int[] $value int list to be set as value
+ *
+ * @inheritDoc
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int list
+ * @since 28.0.0
+ */
+ public function setValueIntList(array $value): self {
+ $this->assertType(self::TYPE_INT_LIST);
+ // TODO confirm value is an array of int ?
+ $this->value = $value;
+
+ return $this;
+ }
+
+
+ /**
+ * @inheritDoc
+ * @return string set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueString(): string {
+ $this->assertType(self::TYPE_STRING);
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return (string)$this->value;
+ }
+
+ /**
+ * @inheritDoc
+ * @return int set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueInt(): int {
+ $this->assertType(self::TYPE_INT);
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return (int)$this->value;
+ }
+
+ /**
+ * @inheritDoc
+ * @return float set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a float
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueFloat(): float {
+ $this->assertType(self::TYPE_FLOAT);
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return (float)$this->value;
+ }
+
+ /**
+ * @inheritDoc
+ * @return bool set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a bool
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueBool(): bool {
+ $this->assertType(self::TYPE_BOOL);
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return (bool)$this->value;
+ }
+
+ /**
+ * @inheritDoc
+ * @return array set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store an array
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueArray(): array {
+ $this->assertType(self::TYPE_ARRAY);
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return (array)$this->value;
+ }
+
+ /**
+ * @inheritDoc
+ * @return string[] set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string list
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueStringList(): array {
+ $this->assertType(self::TYPE_STRING_LIST);
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return (array)$this->value;
+ }
+
+ /**
+ * @inheritDoc
+ * @return int[] set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int list
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueIntList(): array {
+ $this->assertType(self::TYPE_INT_LIST);
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return (array)$this->value;
+ }
+
+ /**
+ * @inheritDoc
+ * @return string|int|float|bool|array|string[]|int[] set value
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueAny(): mixed {
+ if (null === $this->value) {
+ throw new FilesMetadataNotFoundException('value is not set');
+ }
+
+ return $this->value;
+ }
+
+ /**
+ * @param bool $indexed TRUE to set the stored value as an indexed value
+ *
+ * @inheritDoc
+ * @return self
+ * @since 28.0.0
+ */
+ public function setIndexed(bool $indexed): self {
+ $this->indexed = $indexed;
+
+ return $this;
+ }
+
+ /**
+ * @inheritDoc
+ * @return bool TRUE if value is an indexed value
+ * @since 28.0.0
+ */
+ public function isIndexed(): bool {
+ return $this->indexed;
+ }
+
+ /**
+ * @param array $data serialized version of the object
+ *
+ * @inheritDoc
+ * @return self
+ * @see jsonSerialize
+ * @since 28.0.0
+ */
+ public function import(array $data): self {
+ $this->value = $data['value'] ?? null;
+ $this->type = $data['type'] ?? '';
+ $this->setIndexed($data['indexed'] ?? false);
+
+ return $this;
+ }
+
+ public function jsonSerialize(bool $emptyValues = false): array {
+ return [
+ 'value' => ($emptyValues) ? null : $this->value,
+ 'type' => $this->getType(),
+ 'indexed' => $this->isIndexed()
+ ];
+ }
+}
diff --git a/lib/private/FilesMetadata/Service/IndexRequestService.php b/lib/private/FilesMetadata/Service/IndexRequestService.php
new file mode 100644
index 00000000000..6530dabd1c3
--- /dev/null
+++ b/lib/private/FilesMetadata/Service/IndexRequestService.php
@@ -0,0 +1,195 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Service;
+
+use OCP\DB\Exception as DbException;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataTypeException;
+use OCP\FilesMetadata\Model\IFilesMetadata;
+use OCP\FilesMetadata\Model\IMetadataValueWrapper;
+use OCP\IDBConnection;
+use Psr\Log\LoggerInterface;
+
+/**
+ * manage sql request to the metadata_index table
+ */
+class IndexRequestService {
+ public const TABLE_METADATA_INDEX = 'files_metadata_index';
+
+ public function __construct(
+ private IDBConnection $dbConnection,
+ private LoggerInterface $logger
+ ) {
+ }
+
+ /**
+ * update the index for a specific metadata key
+ *
+ * @param IFilesMetadata $filesMetadata metadata
+ * @param string $key metadata key to update
+ *
+ * @throws DbException
+ */
+ public function updateIndex(IFilesMetadata $filesMetadata, string $key): void {
+ $fileId = $filesMetadata->getFileId();
+ try {
+ $metadataType = $filesMetadata->getType($key);
+ } catch (FilesMetadataNotFoundException $e) {
+ return;
+ }
+
+ /**
+ * might look harsh, but a lot simpler than comparing current indexed data, as we can expect
+ * conflict with a change of types.
+ * We assume that each time one random metadata were modified we can drop all index for this
+ * key and recreate them.
+ * To make it slightly cleaner, we'll use transaction
+ */
+ $this->dbConnection->beginTransaction();
+ try {
+ $this->dropIndex($fileId, $key);
+ match ($metadataType) {
+ IMetadataValueWrapper::TYPE_STRING => $this->insertIndexString($fileId, $key, $filesMetadata->get($key)),
+ IMetadataValueWrapper::TYPE_INT => $this->insertIndexInt($fileId, $key, $filesMetadata->getInt($key)),
+ IMetadataValueWrapper::TYPE_BOOL => $this->insertIndexBool($fileId, $key, $filesMetadata->getBool($key)),
+ IMetadataValueWrapper::TYPE_STRING_LIST => $this->insertIndexStringList($fileId, $key, $filesMetadata->getStringList($key)),
+ IMetadataValueWrapper::TYPE_INT_LIST => $this->insertIndexIntList($fileId, $key, $filesMetadata->getIntList($key))
+ };
+ } catch (FilesMetadataNotFoundException|FilesMetadataTypeException|DbException $e) {
+ $this->dbConnection->rollBack();
+ $this->logger->warning('issue while updateIndex', ['exception' => $e, 'fileId' => $fileId, 'key' => $key]);
+ }
+
+ $this->dbConnection->commit();
+ }
+
+ /**
+ * insert a new entry in the metadata_index table for a string value
+ *
+ * @param int $fileId file id
+ * @param string $key metadata key
+ * @param string $value metadata value
+ *
+ * @throws DbException
+ */
+ private function insertIndexString(int $fileId, string $key, string $value): void {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $qb->insert(self::TABLE_METADATA_INDEX)
+ ->setValue('meta_key', $qb->createNamedParameter($key))
+ ->setValue('meta_value_string', $qb->createNamedParameter($value))
+ ->setValue('file_id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT));
+ $qb->executeStatement();
+ }
+
+ /**
+ * insert a new entry in the metadata_index table for an int value
+ *
+ * @param int $fileId file id
+ * @param string $key metadata key
+ * @param int $value metadata value
+ *
+ * @throws DbException
+ */
+ public function insertIndexInt(int $fileId, string $key, int $value): void {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $qb->insert(self::TABLE_METADATA_INDEX)
+ ->setValue('meta_key', $qb->createNamedParameter($key))
+ ->setValue('meta_value_int', $qb->createNamedParameter($value, IQueryBuilder::PARAM_INT))
+ ->setValue('file_id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT));
+ $qb->executeStatement();
+ }
+
+ /**
+ * insert a new entry in the metadata_index table for a bool value
+ *
+ * @param int $fileId file id
+ * @param string $key metadata key
+ * @param bool $value metadata value
+ *
+ * @throws DbException
+ */
+ public function insertIndexBool(int $fileId, string $key, bool $value): void {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $qb->insert(self::TABLE_METADATA_INDEX)
+ ->setValue('meta_key', $qb->createNamedParameter($key))
+ ->setValue('meta_value_int', $qb->createNamedParameter(($value) ? '1' : '0', IQueryBuilder::PARAM_INT))
+ ->setValue('file_id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT));
+ $qb->executeStatement();
+ }
+
+ /**
+ * insert entries in the metadata_index table for list of string
+ *
+ * @param int $fileId file id
+ * @param string $key metadata key
+ * @param string[] $values metadata values
+ *
+ * @throws DbException
+ */
+ public function insertIndexStringList(int $fileId, string $key, array $values): void {
+ foreach ($values as $value) {
+ $this->insertIndexString($fileId, $key, $value);
+ }
+ }
+
+ /**
+ * insert entries in the metadata_index table for list of int
+ *
+ * @param int $fileId file id
+ * @param string $key metadata key
+ * @param int[] $values metadata values
+ *
+ * @throws DbException
+ */
+ public function insertIndexIntList(int $fileId, string $key, array $values): void {
+ foreach ($values as $value) {
+ $this->insertIndexInt($fileId, $key, $value);
+ }
+ }
+
+ /**
+ * drop indexes related to a file id
+ * if a key is specified, only drop entries related to it
+ *
+ * @param int $fileId file id
+ * @param string $key metadata key
+ *
+ * @throws DbException
+ */
+ public function dropIndex(int $fileId, string $key = ''): void {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $expr = $qb->expr();
+ $qb->delete(self::TABLE_METADATA_INDEX)
+ ->where($expr->eq('file_id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
+
+ if ($key !== '') {
+ $qb->andWhere($expr->eq('meta_key', $qb->createNamedParameter($key)));
+ }
+
+ $qb->executeStatement();
+ }
+}
diff --git a/lib/private/FilesMetadata/Service/MetadataRequestService.php b/lib/private/FilesMetadata/Service/MetadataRequestService.php
new file mode 100644
index 00000000000..85874e92d4a
--- /dev/null
+++ b/lib/private/FilesMetadata/Service/MetadataRequestService.php
@@ -0,0 +1,160 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\FilesMetadata\Service;
+
+use OC\FilesMetadata\Model\FilesMetadata;
+use OCP\DB\Exception;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Model\IFilesMetadata;
+use OCP\IDBConnection;
+use Psr\Log\LoggerInterface;
+
+/**
+ * manage sql request to the metadata table
+ */
+class MetadataRequestService {
+ public const TABLE_METADATA = 'files_metadata';
+
+ public function __construct(
+ private IDBConnection $dbConnection,
+ private LoggerInterface $logger
+ ) {
+ }
+
+ /**
+ * store metadata into database
+ *
+ * @param IFilesMetadata $filesMetadata
+ *
+ * @throws Exception
+ */
+ public function store(IFilesMetadata $filesMetadata): void {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $qb->insert(self::TABLE_METADATA)
+ ->setValue('file_id', $qb->createNamedParameter($filesMetadata->getFileId(), IQueryBuilder::PARAM_INT))
+ ->setValue('json', $qb->createNamedParameter(json_encode($filesMetadata->jsonSerialize())))
+ ->setValue('sync_token', $qb->createNamedParameter($this->generateSyncToken()))
+ ->setValue('last_update', (string) $qb->createFunction('NOW()'));
+ $qb->executeStatement();
+ }
+
+ /**
+ * returns metadata for a file id
+ *
+ * @param int $fileId file id
+ *
+ * @return IFilesMetadata
+ * @throws FilesMetadataNotFoundException if no metadata are found in database
+ */
+ public function getMetadataFromFileId(int $fileId): IFilesMetadata {
+ try {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $qb->select('json', 'sync_token')->from(self::TABLE_METADATA);
+ $qb->where(
+ $qb->expr()->eq('file_id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT))
+ );
+ $result = $qb->executeQuery();
+ $data = $result->fetch();
+ $result->closeCursor();
+ } catch (Exception $e) {
+ $this->logger->warning(
+ 'exception while getMetadataFromDatabase()', ['exception' => $e, 'fileId' => $fileId]
+ );
+ throw new FilesMetadataNotFoundException();
+ }
+
+ if ($data === false) {
+ throw new FilesMetadataNotFoundException();
+ }
+
+ $metadata = new FilesMetadata($fileId);
+ $metadata->importFromDatabase($data);
+
+ return $metadata;
+ }
+
+ /**
+ * drop metadata related to a file id
+ *
+ * @param int $fileId file id
+ *
+ * @return void
+ * @throws Exception
+ */
+ public function dropMetadata(int $fileId): void {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $qb->delete(self::TABLE_METADATA)
+ ->where($qb->expr()->eq('file_id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
+ $qb->executeStatement();
+ }
+
+ /**
+ * update metadata in the database
+ *
+ * @param IFilesMetadata $filesMetadata metadata
+ *
+ * @return int number of affected rows
+ * @throws Exception
+ */
+ public function updateMetadata(IFilesMetadata $filesMetadata): int {
+ $qb = $this->dbConnection->getQueryBuilder();
+ $expr = $qb->expr();
+
+ $qb->update(self::TABLE_METADATA)
+ ->set('json', $qb->createNamedParameter(json_encode($filesMetadata->jsonSerialize())))
+ ->set('sync_token', $qb->createNamedParameter($this->generateSyncToken()))
+ ->set('last_update', $qb->createFunction('NOW()'))
+ ->where(
+ $expr->andX(
+ $expr->eq('file_id', $qb->createNamedParameter($filesMetadata->getFileId(), IQueryBuilder::PARAM_INT)),
+ $expr->eq('sync_token', $qb->createNamedParameter($filesMetadata->getSyncToken()))
+ )
+ );
+
+ return $qb->executeStatement();
+ }
+
+ /**
+ * generate a random token
+ * @return string
+ */
+ private function generateSyncToken(): string {
+ $chars = 'qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM1234567890';
+
+ $str = '';
+ $max = strlen($chars);
+ for ($i = 0; $i < 7; $i++) {
+ try {
+ $str .= $chars[random_int(0, $max - 2)];
+ } catch (\Exception $e) {
+ $this->logger->warning('exception during generateSyncToken', ['exception' => $e]);
+ }
+ }
+
+ return $str;
+ }
+}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index 77791c49e8b..31e4a9f79e2 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -102,6 +102,7 @@ use OC\Files\Storage\StorageFactory;
use OC\Files\Template\TemplateManager;
use OC\Files\Type\Loader;
use OC\Files\View;
+use OC\FilesMetadata\FilesMetadataManager;
use OC\FullTextSearch\FullTextSearchManager;
use OC\Http\Client\ClientService;
use OC\Http\Client\NegativeDnsCache;
@@ -196,6 +197,7 @@ use OCP\Files\Lock\ILockManager;
use OCP\Files\Mount\IMountManager;
use OCP\Files\Storage\IStorageFactory;
use OCP\Files\Template\ITemplateManager;
+use OCP\FilesMetadata\IFilesMetadataManager;
use OCP\FullTextSearch\IFullTextSearchManager;
use OCP\GlobalScale\IConfig;
use OCP\Group\ISubAdmin;
@@ -1401,6 +1403,7 @@ class Server extends ServerContainer implements IServerContainer {
$this->registerAlias(\OCP\Dashboard\IManager::class, \OC\Dashboard\Manager::class);
$this->registerAlias(IFullTextSearchManager::class, FullTextSearchManager::class);
+ $this->registerAlias(IFilesMetadataManager::class, FilesMetadataManager::class);
$this->registerAlias(ISubAdmin::class, SubAdmin::class);
@@ -1480,6 +1483,8 @@ class Server extends ServerContainer implements IServerContainer {
$eventDispatcher->addServiceListener(PostLoginEvent::class, UserLoggedInListener::class);
$eventDispatcher->addServiceListener(UserChangedEvent::class, UserChangedListener::class);
$eventDispatcher->addServiceListener(BeforeUserDeletedEvent::class, BeforeUserDeletedListener::class);
+
+ FilesMetadataManager::loadListeners($eventDispatcher);
}
/**
diff --git a/lib/public/Files/FileInfo.php b/lib/public/Files/FileInfo.php
index da35f7f9028..817b03dfc65 100644
--- a/lib/public/Files/FileInfo.php
+++ b/lib/public/Files/FileInfo.php
@@ -6,6 +6,7 @@
* @author Felix Heidecke <felix@heidecke.me>
* @author Joas Schilling <coding@schilljs.com>
* @author Julius Härtl <jus@bitgrid.net>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
@@ -308,4 +309,12 @@ interface FileInfo {
* @since 28.0.0
*/
public function getParentId(): int;
+
+ /**
+ * Get the metadata, if available
+ *
+ * @return array<string, int|string|bool|float|string[]|int[]>
+ * @since 28.0.0
+ */
+ public function getMetadata(): array;
}
diff --git a/lib/public/Files/Search/ISearchComparison.php b/lib/public/Files/Search/ISearchComparison.php
index 8ebaeced304..68924d1e369 100644
--- a/lib/public/Files/Search/ISearchComparison.php
+++ b/lib/public/Files/Search/ISearchComparison.php
@@ -3,6 +3,7 @@
* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
@@ -43,7 +44,7 @@ interface ISearchComparison extends ISearchOperator {
* @return string
* @since 12.0.0
*/
- public function getType();
+ public function getType(): string;
/**
* Get the name of the field to compare with
@@ -53,7 +54,15 @@ interface ISearchComparison extends ISearchOperator {
* @return string
* @since 12.0.0
*/
- public function getField();
+ public function getField(): string;
+
+ /**
+ * extra means data are not related to the main files table
+ *
+ * @return string
+ * @since 28.0.0
+ */
+ public function getExtra(): string;
/**
* Get the value to compare the field with
@@ -61,5 +70,5 @@ interface ISearchComparison extends ISearchOperator {
* @return string|integer|\DateTime
* @since 12.0.0
*/
- public function getValue();
+ public function getValue(): string|int|\DateTime;
}
diff --git a/lib/public/Files/Search/ISearchOrder.php b/lib/public/Files/Search/ISearchOrder.php
index 3b9e6e6713a..5b73e7b102c 100644
--- a/lib/public/Files/Search/ISearchOrder.php
+++ b/lib/public/Files/Search/ISearchOrder.php
@@ -3,6 +3,7 @@
* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Maxence Lange <maxence@artificial-owl.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
@@ -38,7 +39,7 @@ interface ISearchOrder {
* @return string
* @since 12.0.0
*/
- public function getDirection();
+ public function getDirection(): string;
/**
* The field to sort on
@@ -46,7 +47,15 @@ interface ISearchOrder {
* @return string
* @since 12.0.0
*/
- public function getField();
+ public function getField(): string;
+
+ /**
+ * extra means data are not related to the main files table
+ *
+ * @return string
+ * @since 28.0.0
+ */
+ public function getExtra(): string;
/**
* Apply the sorting on 2 FileInfo objects
diff --git a/lib/public/FilesMetadata/AMetadataEvent.php b/lib/public/FilesMetadata/AMetadataEvent.php
new file mode 100644
index 00000000000..87abc60a983
--- /dev/null
+++ b/lib/public/FilesMetadata/AMetadataEvent.php
@@ -0,0 +1,68 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata;
+
+use OCP\EventDispatcher\Event;
+use OCP\Files\Node;
+use OCP\FilesMetadata\Model\IFilesMetadata;
+
+/**
+ * @since 28.0.0
+ */
+abstract class AMetadataEvent extends Event {
+ /**
+ * @param Node $node
+ * @param IFilesMetadata $metadata
+ * @since 28.0.0
+ */
+ public function __construct(
+ private Node $node,
+ private IFilesMetadata $metadata
+ ) {
+ parent::__construct();
+ }
+
+ /**
+ * returns related node
+ *
+ * @return Node
+ * @since 28.0.0
+ */
+ public function getNode(): Node {
+ return $this->node;
+ }
+
+ /**
+ * returns metadata. if known, it already contains data from the database.
+ * If the object is modified using its setters, changes are stored in database at the end of the event.
+ *
+ * @return IFilesMetadata
+ * @since 28.0.0
+ */
+ public function getMetadata(): IFilesMetadata {
+ return $this->metadata;
+ }
+}
diff --git a/lib/public/FilesMetadata/Event/MetadataBackgroundEvent.php b/lib/public/FilesMetadata/Event/MetadataBackgroundEvent.php
new file mode 100644
index 00000000000..3d175994c32
--- /dev/null
+++ b/lib/public/FilesMetadata/Event/MetadataBackgroundEvent.php
@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Event;
+
+use OCP\FilesMetadata\AMetadataEvent;
+
+/**
+ * MetadataBackgroundEvent is an event similar to MetadataLiveEvent but dispatched
+ * on a background thread instead of live thread. Meaning there is no limit to
+ * the time required for the generation of your metadata.
+ *
+ * @see AMetadataEvent::getMetadata()
+ * @see AMetadataEvent::getNode()
+ * @since 28.0.0
+ */
+class MetadataBackgroundEvent extends AMetadataEvent {
+}
diff --git a/lib/public/FilesMetadata/Event/MetadataLiveEvent.php b/lib/public/FilesMetadata/Event/MetadataLiveEvent.php
new file mode 100644
index 00000000000..a89692fde92
--- /dev/null
+++ b/lib/public/FilesMetadata/Event/MetadataLiveEvent.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Event;
+
+use OCP\FilesMetadata\AMetadataEvent;
+
+/**
+ * MetadataLiveEvent is an event initiated when a file is created or updated.
+ * The app contains the Node related to the created/updated file, and a FilesMetadata that already
+ * contains the currently known metadata.
+ *
+ * Setting new metadata, or modifying already existing metadata with different value, will trigger
+ * the save of the metadata in the database.
+ *
+ * @see AMetadataEvent::getMetadata()
+ * @see AMetadataEvent::getNode()
+ * @see MetadataLiveEvent::requestBackgroundJob()
+ * @since 28.0.0
+ */
+class MetadataLiveEvent extends AMetadataEvent {
+ private bool $runAsBackgroundJob = false;
+
+ /**
+ * For heavy process, call this method if your app prefers to update metadata on a
+ * background/cron job, instead of the live process.
+ * A similar MetadataBackgroundEvent will be broadcast on next cron tick.
+ *
+ * @return void
+ * @since 28.0.0
+ */
+ public function requestBackgroundJob(): void {
+ $this->runAsBackgroundJob = true;
+ }
+
+ /**
+ * return true if any app that catch this event requested a re-run as background job
+ *
+ * @return bool
+ * @since 28.0.0
+ */
+ public function isRunAsBackgroundJobRequested(): bool {
+ return $this->runAsBackgroundJob;
+ }
+}
diff --git a/lib/public/FilesMetadata/Exceptions/FilesMetadataException.php b/lib/public/FilesMetadata/Exceptions/FilesMetadataException.php
new file mode 100644
index 00000000000..e3f75a7a7af
--- /dev/null
+++ b/lib/public/FilesMetadata/Exceptions/FilesMetadataException.php
@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Exceptions;
+
+use Exception;
+
+/**
+ * @since 28.0.0
+ */
+class FilesMetadataException extends Exception {
+}
diff --git a/lib/public/FilesMetadata/Exceptions/FilesMetadataKeyFormatException.php b/lib/public/FilesMetadata/Exceptions/FilesMetadataKeyFormatException.php
new file mode 100644
index 00000000000..0083e985a5e
--- /dev/null
+++ b/lib/public/FilesMetadata/Exceptions/FilesMetadataKeyFormatException.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Exceptions;
+
+/**
+ * @since 28.0.0
+ */
+class FilesMetadataKeyFormatException extends FilesMetadataException {
+}
diff --git a/lib/public/FilesMetadata/Exceptions/FilesMetadataNotFoundException.php b/lib/public/FilesMetadata/Exceptions/FilesMetadataNotFoundException.php
new file mode 100644
index 00000000000..9c03c5ba370
--- /dev/null
+++ b/lib/public/FilesMetadata/Exceptions/FilesMetadataNotFoundException.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Exceptions;
+
+/**
+ * @since 28.0.0
+ */
+class FilesMetadataNotFoundException extends FilesMetadataException {
+}
diff --git a/lib/public/FilesMetadata/Exceptions/FilesMetadataTypeException.php b/lib/public/FilesMetadata/Exceptions/FilesMetadataTypeException.php
new file mode 100644
index 00000000000..1d134c67ecf
--- /dev/null
+++ b/lib/public/FilesMetadata/Exceptions/FilesMetadataTypeException.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Exceptions;
+
+/**
+ * @since 28.0.0
+ */
+class FilesMetadataTypeException extends FilesMetadataException {
+}
diff --git a/lib/public/FilesMetadata/IFilesMetadataManager.php b/lib/public/FilesMetadata/IFilesMetadataManager.php
new file mode 100644
index 00000000000..1cd0fcb4125
--- /dev/null
+++ b/lib/public/FilesMetadata/IFilesMetadataManager.php
@@ -0,0 +1,139 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\Files\Node;
+use OCP\FilesMetadata\Exceptions\FilesMetadataException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Model\IFilesMetadata;
+use OCP\FilesMetadata\Model\IMetadataQuery;
+
+/**
+ * Manager for FilesMetadata; manage files' metadata.
+ *
+ * @since 28.0.0
+ */
+interface IFilesMetadataManager {
+ /** @since 28.0.0 */
+ public const PROCESS_LIVE = 1;
+ /** @since 28.0.0 */
+ public const PROCESS_BACKGROUND = 2;
+
+ /**
+ * initiate the process of refreshing the metadata in relation to a node
+ * usually, this process:
+ * - get current metadata from database, if available, or create a new one
+ * - dispatch a MetadataLiveEvent,
+ * - save new metadata in database, if metadata have been changed during the event
+ * - refresh metadata indexes if needed,
+ * - prep a new cronjob if an app request it during the event,
+ *
+ * @param Node $node related node
+ * @param int $process type of process
+ *
+ * @return IFilesMetadata
+ * @see self::PROCESS_BACKGROUND
+ * @see self::PROCESS_LIVE
+ * @since 28.0.0
+ */
+ public function refreshMetadata(
+ Node $node,
+ int $process = self::PROCESS_LIVE
+ ): IFilesMetadata;
+
+ /**
+ * returns metadata from a file id
+ *
+ * @param int $fileId file id
+ *
+ * @return IFilesMetadata
+ * @throws FilesMetadataNotFoundException if not found
+ * @since 28.0.0
+ */
+ public function getMetadata(int $fileId): IFilesMetadata;
+
+ /**
+ * save metadata to database and refresh indexes.
+ * metadata are saved if new data are available.
+ * on update, a check on syncToken is done to avoid conflict (race condition)
+ *
+ * @param IFilesMetadata $filesMetadata
+ *
+ * @throws FilesMetadataException if metadata seems malformed
+ * @since 28.0.0
+ */
+ public function saveMetadata(IFilesMetadata $filesMetadata): void;
+
+ /**
+ * delete metadata and its indexes
+ *
+ * @param int $fileId file id
+ *
+ * @return void
+ * @since 28.0.0
+ */
+ public function deleteMetadata(int $fileId): void;
+
+ /**
+ * generate and return a MetadataQuery to help building sql queries
+ *
+ * @param IQueryBuilder $qb
+ * @param string $fileTableAlias alias of the table that contains data about files
+ * @param string $fileIdField alias of the field that contains file ids
+ *
+ * @return IMetadataQuery
+ * @see IMetadataQuery
+ * @since 28.0.0
+ */
+ public function getMetadataQuery(
+ IQueryBuilder $qb,
+ string $fileTableAlias,
+ string $fileIdField
+ ): IMetadataQuery;
+
+ /**
+ * returns all type of metadata currently available.
+ * The list is stored in a IFilesMetadata with null values but correct type.
+ *
+ * @return IFilesMetadata
+ * @since 28.0.0
+ */
+ public function getKnownMetadata(): IFilesMetadata;
+
+ /**
+ * initiate a metadata key with its type.
+ * The call is mandatory before using the metadata property in a webdav request.
+ * It is not needed to only use this method when the app is enabled: the method can be
+ * called each time during the app loading as the metadata will only be initiated if not known
+ *
+ * @param string $key metadata key
+ * @param string $type metadata type
+ * @param bool $indexed TRUE if metadata can be search
+ * @since 28.0.0
+ */
+ public function initMetadata(string $key, string $type, bool $indexed): void;
+}
diff --git a/lib/public/FilesMetadata/Model/IFilesMetadata.php b/lib/public/FilesMetadata/Model/IFilesMetadata.php
new file mode 100644
index 00000000000..ca1cc898f74
--- /dev/null
+++ b/lib/public/FilesMetadata/Model/IFilesMetadata.php
@@ -0,0 +1,343 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Model;
+
+use JsonSerializable;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataTypeException;
+
+/**
+ * Model that represent metadata linked to a specific file.
+ *
+ * Example of json stored in the database
+ * {
+ * "mymeta": {
+ * "value": "this is a test",
+ * "type": "string",
+ * "indexed": false
+ * },
+ * "myapp-anothermeta": {
+ * "value": 42,
+ * "type": "int",
+ * "indexed": true
+ * }
+ * }
+ *
+ * @see IMetadataValueWrapper
+ * @since 28.0.0
+ */
+interface IFilesMetadata extends JsonSerializable {
+ /**
+ * returns the file id linked to this metadata
+ *
+ * @return int related file id
+ * @since 28.0.0
+ */
+ public function getFileId(): int;
+
+ /**
+ * returns last time metadata were updated in the database
+ *
+ * @return int timestamp
+ * @since 28.0.0
+ */
+ public function lastUpdateTimestamp(): int;
+
+ /**
+ * returns the token known at the time the metadata were extracted from database
+ *
+ * @return string token
+ * @since 28.0.0
+ */
+ public function getSyncToken(): string;
+
+ /**
+ * returns all current metadata keys
+ *
+ * @return string[] list of keys
+ * @since 28.0.0
+ */
+ public function getKeys(): array;
+
+ /**
+ * returns true if search metadata key exists
+ *
+ * @param string $needle metadata key to search
+ *
+ * @return bool TRUE if key exist
+ * @since 28.0.0
+ */
+ public function hasKey(string $needle): bool;
+
+ /**
+ * return the list of metadata keys set as indexed
+ *
+ * @return string[] list of indexes
+ * @since 28.0.0
+ */
+ public function getIndexes(): array;
+
+ /**
+ * returns true if key exists and is set as indexed
+ *
+ * @param string $key metadata key
+ *
+ * @return bool
+ * @since 28.0.0
+ */
+ public function isIndex(string $key): bool;
+
+ /**
+ * returns string value for a metadata key
+ *
+ * @param string $key metadata key
+ *
+ * @return string metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function get(string $key): string;
+
+ /**
+ * returns int value for a metadata key
+ *
+ * @param string $key metadata key
+ *
+ * @return int metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getInt(string $key): int;
+
+ /**
+ * returns float value for a metadata key
+ *
+ * @param string $key metadata key
+ *
+ * @return float metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getFloat(string $key): float;
+
+ /**
+ * returns bool value for a metadata key
+ *
+ * @param string $key metadata key
+ *
+ * @return bool metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getBool(string $key): bool;
+
+ /**
+ * returns array for a metadata key
+ *
+ * @param string $key metadata key
+ *
+ * @return array metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getArray(string $key): array;
+
+ /**
+ * returns string[] value for a metadata key
+ *
+ * @param string $key metadata key
+ *
+ * @return string[] metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getStringList(string $key): array;
+
+ /**
+ * returns int[] value for a metadata key
+ *
+ * @param string $key metadata key
+ *
+ * @return int[] metadata value
+ * @throws FilesMetadataNotFoundException
+ * @throws FilesMetadataTypeException
+ * @since 28.0.0
+ */
+ public function getIntList(string $key): array;
+
+ /**
+ * returns the value type of the metadata (string, int, ...)
+ *
+ * @param string $key metadata key
+ *
+ * @return string value type
+ * @throws FilesMetadataNotFoundException
+ * @see IMetadataValueWrapper::TYPE_STRING
+ * @see IMetadataValueWrapper::TYPE_INT
+ * @see IMetadataValueWrapper::TYPE_FLOAT
+ * @see IMetadataValueWrapper::TYPE_BOOL
+ * @see IMetadataValueWrapper::TYPE_ARRAY
+ * @see IMetadataValueWrapper::TYPE_STRING_LIST
+ * @see IMetadataValueWrapper::TYPE_INT_LIST
+ * @since 28.0.0
+ */
+ public function getType(string $key): string;
+
+ /**
+ * set a metadata key/value pair for string value
+ *
+ * @param string $key metadata key
+ * @param string $value metadata value
+ * @param bool $index set TRUE if value must be indexed
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function set(string $key, string $value, bool $index = false): self;
+
+ /**
+ * set a metadata key/value pair for int value
+ *
+ * @param string $key metadata key
+ * @param int $value metadata value
+ * @param bool $index set TRUE if value must be indexed
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function setInt(string $key, int $value, bool $index = false): self;
+
+ /**
+ * set a metadata key/value pair for float value
+ *
+ * @param string $key metadata key
+ * @param float $value metadata value
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function setFloat(string $key, float $value): self;
+
+ /**
+ * set a metadata key/value pair for bool value
+ *
+ * @param string $key metadata key
+ * @param bool $value metadata value
+ * @param bool $index set TRUE if value must be indexed
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function setBool(string $key, bool $value, bool $index = false): self;
+
+ /**
+ * set a metadata key/value pair for array
+ *
+ * @param string $key metadata key
+ * @param array $value metadata value
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function setArray(string $key, array $value): self;
+
+ /**
+ * set a metadata key/value pair for list of string
+ *
+ * @param string $key metadata key
+ * @param string[] $value metadata value
+ * @param bool $index set TRUE if each values from the list must be indexed
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function setStringList(string $key, array $value, bool $index = false): self;
+
+ /**
+ * set a metadata key/value pair for list of int
+ *
+ * @param string $key metadata key
+ * @param int[] $value metadata value
+ * @param bool $index set TRUE if each values from the list must be indexed
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function setIntList(string $key, array $value, bool $index = false): self;
+
+ /**
+ * unset a metadata
+ *
+ * @param string $key metadata key
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function unset(string $key): self;
+
+ /**
+ * unset metadata with key starting with prefix
+ *
+ * @param string $keyPrefix metadata key prefix
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function removeStartsWith(string $keyPrefix): self;
+
+ /**
+ * returns true if object have been updated since last import
+ *
+ * @return bool TRUE if metadata have been modified
+ * @since 28.0.0
+ */
+ public function updated(): bool;
+
+ /**
+ * returns metadata in a simple array with METADATA_KEY => METADATA_VALUE
+ *
+ * @return array metadata
+ * @since 28.0.0
+ */
+ public function asArray(): array;
+
+ /**
+ * deserialize the object from a json
+ *
+ * @param array $data serialized version of the object
+ *
+ * @return self
+ * @see jsonSerialize
+ * @since 28.0.0
+ */
+ public function import(array $data): self;
+}
diff --git a/lib/public/FilesMetadata/Model/IMetadataQuery.php b/lib/public/FilesMetadata/Model/IMetadataQuery.php
new file mode 100644
index 00000000000..d3f55ce6cce
--- /dev/null
+++ b/lib/public/FilesMetadata/Model/IMetadataQuery.php
@@ -0,0 +1,90 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Model;
+
+/**
+ * Model that help building queries with metadata and metadata indexes
+ *
+ * @since 28.0.0
+ */
+interface IMetadataQuery {
+ /** @since 28.0.0 */
+ public const EXTRA = 'metadata';
+
+ /**
+ * Add metadata linked to file id to the query
+ *
+ * @see self::extractMetadata()
+ * @since 28.0.0
+ */
+ public function retrieveMetadata(): void;
+
+ /**
+ * extract metadata from a result row
+ *
+ * @param array $row result row
+ *
+ * @return IFilesMetadata metadata
+ * @see self::retrieveMetadata()
+ * @since 28.0.0
+ */
+ public function extractMetadata(array $row): IFilesMetadata;
+
+ /**
+ * join the metadata_index table, based on a metadataKey.
+ * This will prep the query for condition based on this specific metadataKey.
+ * If a link to the metadataKey already exists, returns known alias.
+ *
+ * TODO: investigate how to support a search done on multiple values for same key (AND).
+ *
+ * @param string $metadataKey metadata key
+ * @param bool $enforce limit the request only to existing metadata
+ *
+ * @return string generated table alias
+ * @since 28.0.0
+ */
+ public function joinIndex(string $metadataKey, bool $enforce = false): string;
+
+ /**
+ * returns the name of the field for metadata key to be used in query expressions
+ *
+ * @param string $metadataKey metadata key
+ *
+ * @return string table field
+ * @since 28.0.0
+ */
+ public function getMetadataKeyField(string $metadataKey): string;
+
+ /**
+ * returns the name of the field for metadata string value to be used in query expressions
+ *
+ * @param string $metadataKey metadata key
+ *
+ * @return string table field
+ * @since 28.0.0
+ */
+ public function getMetadataValueField(string $metadataKey): string;
+}
diff --git a/lib/public/FilesMetadata/Model/IMetadataValueWrapper.php b/lib/public/FilesMetadata/Model/IMetadataValueWrapper.php
new file mode 100644
index 00000000000..577ff874330
--- /dev/null
+++ b/lib/public/FilesMetadata/Model/IMetadataValueWrapper.php
@@ -0,0 +1,300 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright 2023 Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\FilesMetadata\Model;
+
+use JsonSerializable;
+use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
+use OCP\FilesMetadata\Exceptions\FilesMetadataTypeException;
+
+/**
+ * Model that store the value of a single metadata.
+ * It stores the value, its type and the index status.
+ *
+ * @see IFilesMetadata
+ * @since 28.0.0
+ */
+interface IMetadataValueWrapper extends JsonSerializable {
+ /**
+ * @since 28.0.0
+ */
+ public const TYPE_STRING = 'string';
+ public const TYPE_INT = 'int';
+ public const TYPE_FLOAT = 'float';
+ public const TYPE_BOOL = 'bool';
+ public const TYPE_ARRAY = 'array';
+ public const TYPE_STRING_LIST = 'string[]';
+ public const TYPE_INT_LIST = 'int[]';
+
+ /**
+ * Unless a call of import() to deserialize an object is expected, a valid value type is needed here.
+ *
+ * @param string $type value type
+ *
+ * @see self::TYPE_INT
+ * @see self::TYPE_FLOAT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @since 28.0.0
+ */
+ public function __construct(string $type);
+
+ /**
+ * returns the value type
+ *
+ * @return string value type
+ * @see self::TYPE_INT
+ * @see self::TYPE_FLOAT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @since 28.0.0
+ */
+ public function getType(): string;
+
+ /**
+ * returns if the set value type is the one expected
+ *
+ * @param string $type value type
+ *
+ * @return bool
+ * @see self::TYPE_INT
+ * @see self::TYPE_FLOAT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @since 28.0.0
+ */
+ public function isType(string $type): bool;
+
+ /**
+ * throws an exception if the type is not correctly set
+ *
+ * @param string $type value type
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if type cannot be confirmed
+ * @see self::TYPE_INT
+ * @see self::TYPE_BOOL
+ * @see self::TYPE_ARRAY
+ * @see self::TYPE_STRING_LIST
+ * @see self::TYPE_INT_LIST
+ * @see self::TYPE_STRING
+ * @see self::TYPE_FLOAT
+ * @since 28.0.0
+ */
+ public function assertType(string $type): self;
+
+ /**
+ * set a string value
+ *
+ * @param string $value string to be set as value
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string
+ * @since 28.0.0
+ */
+ public function setValueString(string $value): self;
+
+ /**
+ * set a int value
+ *
+ * @param int $value int to be set as value
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int
+ * @since 28.0.0
+ */
+ public function setValueInt(int $value): self;
+
+ /**
+ * set a float value
+ *
+ * @param float $value float to be set as value
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a float
+ * @since 28.0.0
+ */
+ public function setValueFloat(float $value): self;
+
+ /**
+ * set a bool value
+ *
+ * @param bool $value bool to be set as value
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a bool
+ * @since 28.0.0
+ */
+ public function setValueBool(bool $value): self;
+
+ /**
+ * set an array value
+ *
+ * @param array $value array to be set as value
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store an array
+ * @since 28.0.0
+ */
+ public function setValueArray(array $value): self;
+
+ /**
+ * set a string list value
+ *
+ * @param string[] $value string list to be set as value
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string list
+ * @since 28.0.0
+ */
+ public function setValueStringList(array $value): self;
+
+ /**
+ * set an int list value
+ *
+ * @param int[] $value int list to be set as value
+ *
+ * @return self
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int list
+ * @since 28.0.0
+ */
+ public function setValueIntList(array $value): self;
+
+
+ /**
+ * get stored value
+ *
+ * @return string set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueString(): string;
+
+ /**
+ * get stored value
+ *
+ * @return int set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueInt(): int;
+
+ /**
+ * get stored value
+ *
+ * @return float set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a float
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueFloat(): float;
+
+ /**
+ * get stored value
+ *
+ * @return bool set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a bool
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueBool(): bool;
+
+ /**
+ * get stored value
+ *
+ * @return array set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store an array
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueArray(): array;
+
+ /**
+ * get stored value
+ *
+ * @return string[] set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store a string list
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueStringList(): array;
+
+ /**
+ * get stored value
+ *
+ * @return int[] set value
+ * @throws FilesMetadataTypeException if wrapper was not set to store an int list
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueIntList(): array;
+
+ /**
+ * get stored value
+ *
+ * @return string|int|float|bool|array|string[]|int[] set value
+ * @throws FilesMetadataNotFoundException if value is not set
+ * @since 28.0.0
+ */
+ public function getValueAny(): mixed;
+
+ /**
+ * @param bool $indexed TRUE to set the stored value as an indexed value
+ *
+ * @return self
+ * @since 28.0.0
+ */
+ public function setIndexed(bool $indexed): self;
+
+ /**
+ * returns if value is an indexed value
+ *
+ * @return bool TRUE if value is an indexed value
+ * @since 28.0.0
+ */
+ public function isIndexed(): bool;
+
+ /**
+ * deserialize the object from a json
+ *
+ * @param array $data serialized version of the object
+ *
+ * @return self
+ * @see jsonSerialize
+ * @since 28.0.0
+ */
+ public function import(array $data): self;
+}