feat(files): Allow advanced search for files

Signed-off-by: Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>

apps/files/lib/Search/FilesSearchProvider.php

@@ -29,25 +29,32 @@ declare(strict_types=1);
  */
 namespace OCA\Files\Search;
 
+use InvalidArgumentException;
+use OCP\Files\Search\ISearchOperator;
+use OCP\Search\FilterDefinition;
+use OCP\Search\IFilter;
+use OCP\Search\IFilteringProvider;
+use OCP\Share\IShare;
+use OC\Files\Search\SearchBinaryOperator;
 use OC\Files\Search\SearchComparison;
 use OC\Files\Search\SearchOrder;
 use OC\Files\Search\SearchQuery;
 use OCP\Files\FileInfo;
 use OCP\Files\IMimeTypeDetector;
 use OCP\Files\IRootFolder;
-use OCP\Files\Search\ISearchComparison;
 use OCP\Files\Node;
+use OCP\Files\Search\ISearchComparison;
 use OCP\Files\Search\ISearchOrder;
 use OCP\IL10N;
 use OCP\IURLGenerator;
 use OCP\IUser;
-use OCP\Search\IProvider;
 use OCP\Search\ISearchQuery;
 use OCP\Search\SearchResult;
 use OCP\Search\SearchResultEntry;
+use OC\Search\Filter\GroupFilter;
+use OC\Search\Filter\UserFilter;
 
-class FilesSearchProvider implements IProvider {
-
+class FilesSearchProvider implements IFilteringProvider {
 	/** @var IL10N */
 	private $l10n;
 
@@ -97,21 +104,38 @@ class FilesSearchProvider implements IProvider {
 		return 5;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
+	public function getSupportedFilters(): array {
+		return [
+			'term',
+			'since',
+			'until',
+			'person',
+			'min-size',
+			'max-size',
+			'mime',
+			'type',
+			'is-favorite',
+			'title-only',
+		];
+	}
+
+	public function getAlternateIds(): array {
+		return [];
+	}
+
+	public function getCustomFilters(): array {
+		return [
+			new FilterDefinition('min-size', FilterDefinition::TYPE_INT),
+			new FilterDefinition('max-size', FilterDefinition::TYPE_INT),
+			new FilterDefinition('mime', FilterDefinition::TYPE_STRING),
+			new FilterDefinition('type', FilterDefinition::TYPE_STRING),
+			new FilterDefinition('is-favorite', FilterDefinition::TYPE_BOOL),
+		];
+	}
+
 	public function search(IUser $user, ISearchQuery $query): SearchResult {
 		$userFolder = $this->rootFolder->getUserFolder($user->getUID());
-		$fileQuery = new SearchQuery(
-			new SearchComparison(ISearchComparison::COMPARE_LIKE, 'name', '%' . $query->getTerm() . '%'),
-			$query->getLimit(),
-			(int)$query->getCursor(),
-			$query->getSortOrder() === ISearchQuery::SORT_DATE_DESC ? [
-				new SearchOrder(ISearchOrder::DIRECTION_DESCENDING, 'mtime'),
-			] : [],
-			$user
-		);
-
+		$fileQuery = $this->buildSearchQuery($query, $user);
 		return SearchResult::paginated(
 			$this->l10n->t('Files'),
 			array_map(function (Node $result) use ($userFolder) {
@@ -141,6 +165,53 @@ class FilesSearchProvider implements IProvider {
 		);
 	}
 
+	private function buildSearchQuery(ISearchQuery $query, IUser $user): SearchQuery {
+		$comparisons = [];
+		foreach ($query->getFilters() as $name => $filter) {
+			$comparisons[] = match ($name) {
+				'term' => new SearchComparison(ISearchComparison::COMPARE_LIKE, 'name', '%' . $filter->get() . '%'),
+				'since' => new SearchComparison(ISearchComparison::COMPARE_GREATER_THAN_EQUAL, 'mtime', $filter->get()->getTimestamp()),
+				'until' => new SearchComparison(ISearchComparison::COMPARE_LESS_THAN_EQUAL, 'mtime', $filter->get()->getTimestamp()),
+				'min-size' => new SearchComparison(ISearchComparison::COMPARE_GREATER_THAN_EQUAL, 'size', $filter->get()),
+				'max-size' => new SearchComparison(ISearchComparison::COMPARE_LESS_THAN_EQUAL, 'size', $filter->get()),
+				'mime' => new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'mimetype', $filter->get()),
+				'type' => new SearchComparison(ISearchComparison::COMPARE_LIKE, 'mimetype', $filter->get() . '/%'),
+				'person' => $this->buildPersonSearchQuery($filter),
+				default => throw new InvalidArgumentException('Unsupported comparison'),
+			};
+		}
+
+		return new SearchQuery(
+			new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_AND, $comparisons),
+			$query->getLimit(),
+			(int) $query->getCursor(),
+			$query->getSortOrder() === ISearchQuery::SORT_DATE_DESC
+				? [new SearchOrder(ISearchOrder::DIRECTION_DESCENDING, 'mtime')]
+				: [],
+			$user
+		);
+	}
+
+	private function buildPersonSearchQuery(IFilter $person): ISearchOperator {
+		if ($person instanceof UserFilter) {
+			return new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_OR, [
+				new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_AND, [
+					new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_with', $person->get()->getUID()),
+					new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_type', IShare::TYPE_USER),
+				]),
+				new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'owner', $person->get()->getUID()),
+			]);
+		}
+		if ($person instanceof GroupFilter) {
+			return new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_AND, [
+				new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_with', $person->get()->getGID()),
+				new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_type', IShare::TYPE_GROUP),
+			]);
+		}
+
+		throw new InvalidArgumentException('Unsupported filter type');
+	}
+
 	/**
 	 * Format subline for files
 	 *

lib/private/Files/Cache/CacheQueryBuilder.php

@@ -71,7 +71,7 @@ class CacheQueryBuilder extends QueryBuilder {
 	public function selectFileCache(string $alias = null, bool $joinExtendedCache = true) {
 		$name = $alias ?: 'filecache';
 		$this->select("$name.fileid", 'storage', 'path', 'path_hash', "$name.parent", "$name.name", 'mimetype', 'mimepart', 'size', 'mtime',
-			'storage_mtime', 'encrypted', 'etag', 'permissions', 'checksum', 'unencrypted_size')
+			'storage_mtime', 'encrypted', 'etag', "$name.permissions", 'checksum', 'unencrypted_size')
 			->from('filecache', $name);
 
 		if ($joinExtendedCache) {

lib/private/Files/Cache/QuerySearchHelper.php

@@ -134,6 +134,11 @@ class QuerySearchHelper {
 			));
 	}
 
+
+	protected function equipQueryForShares(CacheQueryBuilder $query): void {
+		$query->join('file', 'share', 's', $query->expr()->eq('file.fileid', 's.file_source'));
+	}
+
 	/**
 	 * Perform a file system search in multiple caches
 	 *
@@ -172,6 +177,9 @@ class QuerySearchHelper {
 		if (in_array('tagname', $requestedFields) || in_array('favorite', $requestedFields)) {
 			$this->equipQueryForDavTags($query, $this->requireUser($searchQuery));
 		}
+		if (in_array('owner', $requestedFields) || in_array('share_with', $requestedFields) || in_array('share_type', $requestedFields)) {
+			$this->equipQueryForShares($query);
+		}
 
 		$metadataQuery = $query->selectMetadata();
 

lib/private/Files/Cache/SearchBuilder.php

@@ -192,6 +192,8 @@ class SearchBuilder {
 		} elseif ($field === 'path' && $type === ISearchComparison::COMPARE_EQUAL && $operator->getQueryHint(ISearchComparison::HINT_PATH_EQ_HASH, true)) {
 			$field = 'path_hash';
 			$value = md5((string)$value);
+		} elseif ($field === 'owner') {
+			$field = 'uid_owner';
 		}
 		return [$field, $value, $type];
 	}
@@ -208,6 +210,9 @@ class SearchBuilder {
 			'favorite' => 'boolean',
 			'fileid' => 'integer',
 			'storage' => 'integer',
+			'share_with' => 'string',
+			'share_type' => 'integer',
+			'owner' => 'string',
 		];
 		$comparisons = [
 			'mimetype' => ['eq', 'like'],
@@ -220,6 +225,9 @@ class SearchBuilder {
 			'favorite' => ['eq'],
 			'fileid' => ['eq'],
 			'storage' => ['eq'],
+			'share_with' => ['eq'],
+			'share_type' => ['eq'],
+			'owner' => ['eq'],
 		];
 
 		if (!isset($types[$operator->getField()])) {