Merge pull request nextcloud#49657 from nextcloud/backport/48769/stable30

[stable30] Fix incorrect permissions when copying shared files

Author: AndyScherzinger

apps/files_sharing/tests/SharedStorageTest.php

@@ -10,6 +10,7 @@
 use OCA\Files_Sharing\SharedStorage;
 use OCA\Files_Trashbin\AppInfo\Application;
 use OCP\AppFramework\Bootstrap\IBootContext;
+use OCP\Constants;
 use OCP\Files\NotFoundException;
 use OCP\Share\IShare;
 
@@ -579,4 +580,30 @@ public function testInitWithNotFoundSource() {
 		$this->assertInstanceOf(\OC\Files\Storage\FailedStorage::class, $storage->getSourceStorage());
 		$this->assertInstanceOf(\OC\Files\Cache\FailedCache::class, $storage->getCache());
 	}
+
+	public function testCopyPermissions(): void {
+		self::loginHelper(self::TEST_FILES_SHARING_API_USER1);
+
+		$share = $this->share(
+			IShare::TYPE_USER,
+			$this->filename,
+			self::TEST_FILES_SHARING_API_USER1,
+			self::TEST_FILES_SHARING_API_USER2,
+			Constants::PERMISSION_ALL - Constants::PERMISSION_CREATE - Constants::PERMISSION_DELETE
+		);
+
+		self::loginHelper(self::TEST_FILES_SHARING_API_USER2);
+		$view = new View('/' . self::TEST_FILES_SHARING_API_USER2 . '/files');
+		$this->assertTrue($view->file_exists($this->filename));
+
+		$this->assertTrue($view->copy($this->filename, '/target.txt'));
+
+		$this->assertTrue($view->file_exists('/target.txt'));
+
+		$info = $view->getFileInfo('/target.txt');
+		$this->assertEquals(Constants::PERMISSION_ALL - Constants::PERMISSION_CREATE, $info->getPermissions());
+
+		$this->view->unlink($this->filename);
+		$this->shareManager->deleteShare($share);
+	}
 }

lib/private/Files/Cache/Cache.php

@@ -168,6 +168,9 @@ public static function cacheEntryFromData($data, IMimeTypeLoader $mimetypeLoader
 		if ($data['storage_mtime'] == 0) {
 			$data['storage_mtime'] = $data['mtime'];
 		}
+		if (isset($data['f_permissions'])) {
+			$data['scan_permissions'] = $data['f_permissions'];
+		}
 		$data['permissions'] = (int)$data['permissions'];
 		if (isset($data['creation_time'])) {
 			$data['creation_time'] = (int)$data['creation_time'];
@@ -1183,7 +1186,7 @@ public function copyFromCache(ICache $sourceCache, ICacheEntry $sourceEntry, str
 	}
 
 	private function cacheEntryToArray(ICacheEntry $entry): array {
-		return [
+		$data = [
 			'size' => $entry->getSize(),
 			'mtime' => $entry->getMTime(),
 			'storage_mtime' => $entry->getStorageMTime(),
@@ -1196,6 +1199,10 @@ private function cacheEntryToArray(ICacheEntry $entry): array {
 			'upload_time' => $entry->getUploadTime(),
 			'metadata_etag' => $entry->getMetadataEtag(),
 		];
+		if ($entry instanceof CacheEntry && isset($entry['scan_permissions'])) {
+			$data['permissions'] = $entry['scan_permissions'];
+		}
+		return $data;
 	}
 
 	public function getQueryFilterForStorage(): ISearchOperator {