/* * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 4847239 * @summary Verify directory parameter behavior in File.createTempFile(String,String,File) */ import java.io.File; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.attribute.AclEntry; import java.nio.file.attribute.AclEntryPermission; import java.nio.file.attribute.AclFileAttributeView; import java.nio.file.attribute.PosixFileAttributeView; import java.nio.file.attribute.PosixFilePermission; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Set; public class TargetDirectory { public static void main(String[] args) throws Exception { // Target directory exists and is writable Path dir = Path.of("target"); File target = Files.createDirectory(dir).toFile(); File tmp = File.createTempFile("passes", null, target); if (!Files.exists(tmp.toPath())) { throw new RuntimeException("Temp file not created"); } tmp.delete(); // Make target directory read-only if (Files.getFileStore(dir).supportsFileAttributeView("posix")) { PosixFileAttributeView view = Files.getFileAttributeView(dir, PosixFileAttributeView.class); Set<PosixFilePermission> perms = new HashSet<>(); perms.add(PosixFilePermission.valueOf("OWNER_READ")); view.setPermissions(perms); } else if (Files.getFileStore(dir).supportsFileAttributeView("acl")) { AclFileAttributeView view = Files.getFileAttributeView(dir, AclFileAttributeView.class); List<AclEntry> entries = new ArrayList<>(); for (AclEntry entry : view.getAcl()) { Set<AclEntryPermission> perms = new HashSet<>(entry.permissions()); perms.remove(AclEntryPermission.ADD_FILE); entries.add(AclEntry.newBuilder().setType(entry.type()) .setPrincipal(entry.principal()).setPermissions(perms) .build()); } view.setAcl(entries); } else { throw new RuntimeException("Required attribute view not supported"); } // Target directory exists but is read-only try { File.createTempFile("readonly", null, target); throw new RuntimeException("Exception not thrown for read-only target directory"); } catch (IOException expected) { } finally { target.delete(); } // Target directory does not exist try { File.createTempFile("nonexistent", null, new File("void")); throw new RuntimeException("Exception not thrown for non-existent target directory"); } catch (IOException expected) { } // Target is a file, not a directory target = Files.createFile(Path.of("file")).toFile(); try { File.createTempFile("file", null, target); throw new RuntimeException("Exception not thrown for file target"); } catch (IOException expected) { } finally { target.delete(); } } }