fix(FileAccess): Use one param for rewriting home dirs and excluding non-user files mounts

Signed-off-by: Marcel Klehr <mklehr@gmx.net>

lib/private/Files/Cache/FileAccess.php

@@ -158,12 +158,23 @@ class FileAccess implements IFileAccess {
 		$files->closeCursor();
 	}
 
-	public function getDistinctMounts(array $mountProviders = [], bool $rewriteHomeDirectories = true): \Generator {
+	public function getDistinctMounts(array $mountProviders = [], bool $onlyUserFilesMounts = true): \Generator {
 		$qb = $this->connection->getQueryBuilder();
 		$qb->selectDistinct(['root_id', 'storage_id', 'mount_provider_class'])
 			->from('mounts');
+		if ($onlyUserFilesMounts) {
+			$qb->andWhere(
+				$qb->expr()->orX(
+					$qb->expr()->like('mount_point', $qb->createNamedParameter('/%/files/%')),
+					$qb->expr()->in('mount_provider_class', $qb->createNamedParameter([
+						\OC\Files\Mount\LocalHomeMountProvider::class,
+						\OC\Files\Mount\ObjectHomeMountProvider::class,
+					], IQueryBuilder::PARAM_STR_ARRAY))
+				)
+			);
+		}
 		if (count($mountProviders) > 0) {
-			$qb->where($qb->expr()->in('mount_provider_class', $qb->createPositionalParameter($mountProviders, IQueryBuilder::PARAM_STR_ARRAY)));
+			$qb->andWhere($qb->expr()->in('mount_provider_class', $qb->createNamedParameter($mountProviders, IQueryBuilder::PARAM_STR_ARRAY)));
 		}
 		$qb->orderBy('root_id', 'ASC');
 		$result = $qb->executeQuery();
@@ -177,7 +188,7 @@ class FileAccess implements IFileAccess {
 			$overrideRoot = $rootId;
 			// LocalHomeMountProvider is the default provider for user home directories
 			// ObjectHomeMountProvider is the home directory provider for when S3 primary storage is used
-			if ($rewriteHomeDirectories && in_array($row['mount_provider_class'], [
+			if ($onlyUserFilesMounts && in_array($row['mount_provider_class'], [
 				\OC\Files\Mount\LocalHomeMountProvider::class,
 				\OC\Files\Mount\ObjectHomeMountProvider::class,
 			], true)) {

lib/public/Files/Cache/IFileAccess.php

@@ -104,11 +104,11 @@ interface IFileAccess {
 	 * Optionally rewrites home directory root paths to avoid cache and trashbin.
 	 *
 	 * @param list<string> $mountProviders An array of mount provider class names to filter. If empty, all providers will be included.
-	 * @param bool $rewriteHomeDirectories Whether to rewrite the root path IDs for home directories to only include user files.
+	 * @param bool $onlyUserFilesMounts Whether to rewrite the root IDs for home directories to only include user files and to only consider mounts with mount points in the user files.
 	 * @return \Generator<array{storage_id: int, root_id: int, overridden_root: int}> A generator yielding mount configurations as an array containing 'storage_id', 'root_id', and 'override_root'.
 	 * @throws \OCP\DB\Exception
 	 *
 	 * @since 32.0.0
 	 */
-	public function getDistinctMounts(array $mountProviders = [], bool $rewriteHomeDirectories = true): \Generator;
+	public function getDistinctMounts(array $mountProviders = [], bool $onlyUserFilesMounts = true): \Generator;
 }

tests/lib/Files/Cache/FileAccessTest.php

@@ -1,4 +1,5 @@
 <?php
+
 /**
  * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
@@ -71,15 +72,25 @@ class FileAccessTest extends TestCase {
 				'user_id' => $queryBuilder->createNamedParameter('test'),
 			])
 			->executeStatement();
+
+		$queryBuilder->insert('mounts')
+			->values([
+				'storage_id' => $queryBuilder->createNamedParameter(4, IQueryBuilder::PARAM_INT),
+				'root_id' => $queryBuilder->createNamedParameter(31, IQueryBuilder::PARAM_INT),
+				'mount_provider_class' => $queryBuilder->createNamedParameter('TestProviderClass2'),
+				'mount_point' => $queryBuilder->createNamedParameter('/foobar'),
+				'user_id' => $queryBuilder->createNamedParameter('test'),
+			])
+			->executeStatement();
 	}
 
 	/**
 	 * Test that getDistinctMounts returns all mounts without filters
 	 */
 	public function testGetDistinctMountsWithoutFilters(): void {
-		$result = iterator_to_array($this->fileAccess->getDistinctMounts());
+		$result = iterator_to_array($this->fileAccess->getDistinctMounts([], false));
 
-		$this->assertCount(2, $result);
+		$this->assertCount(3, $result);
 
 		$this->assertEquals([
 			'storage_id' => 1,
@@ -92,13 +103,19 @@ class FileAccessTest extends TestCase {
 			'root_id' => 30,
 			'overridden_root' => 30,
 		], $result[1]);
+
+		$this->assertEquals([
+			'storage_id' => 4,
+			'root_id' => 31,
+			'overridden_root' => 31,
+		], $result[2]);
 	}
 
 	/**
 	 * Test that getDistinctMounts applies filtering by mount providers
 	 */
 	public function testGetDistinctMountsWithMountProviderFilter(): void {
-		$result = iterator_to_array($this->fileAccess->getDistinctMounts(['TestProviderClass1']));
+		$result = iterator_to_array($this->fileAccess->getDistinctMounts(['TestProviderClass1'], false));
 
 		$this->assertCount(2, $result);
 
@@ -131,6 +148,18 @@ class FileAccessTest extends TestCase {
 			])
 			->executeStatement();
 
+		// Add a mount that is mounted in the home directory
+		$queryBuilder = $this->dbConnection->getQueryBuilder();
+		$queryBuilder->insert('mounts')
+			->values([
+				'storage_id' => $queryBuilder->createNamedParameter(5, IQueryBuilder::PARAM_INT),
+				'root_id' => $queryBuilder->createNamedParameter(41, IQueryBuilder::PARAM_INT),
+				'mount_provider_class' => $queryBuilder->createNamedParameter('TestMountProvider3'),
+				'mount_point' => $queryBuilder->createNamedParameter('/test/files/foobar'),
+				'user_id' => $queryBuilder->createNamedParameter('test'),
+			])
+			->executeStatement();
+
 		// Simulate adding a "files" directory to the filecache table
 		$queryBuilder = $this->dbConnection->getQueryBuilder()->runAcrossAllShards();
 		$queryBuilder->delete('filecache')->executeStatement();
@@ -148,11 +177,19 @@ class FileAccessTest extends TestCase {
 
 		$result = iterator_to_array($this->fileAccess->getDistinctMounts());
 
+		$this->assertCount(2, $result);
+
 		$this->assertEquals([
 			'storage_id' => 4,
 			'root_id' => 40,
 			'overridden_root' => 99,
-		], end($result));
+		], $result[0]);
+
+		$this->assertEquals([
+			'storage_id' => 5,
+			'root_id' => 41,
+			'overridden_root' => 41,
+		], $result[1]);
 	}
 
 	private function setUpTestDatabaseForGetByAncestorInStorage(): void {