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/* * Copyright 2019 The Netty Project * * The Netty Project licenses this file to you under the Apache License, * version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at: * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */package io.netty.channel;import io.netty.util.internal.PlatformDependent;import org.junit.Test;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.RandomAccessFile;import java.nio.channels.Channels;import java.nio.channels.WritableByteChannel;import static org.junit.Assert.assertArrayEquals;import static org.junit.Assert.assertEquals;import static org.junit.Assert.fail;public class DefaultFileRegionTest { private static final byte[] data = new byte[1048576 * 10]; static { PlatformDependent.threadLocalRandom().nextBytes(data); } private static File newFile() throws IOException { // BUG: CWE-378 Creation of Temporary File With Insecure Permissions // File file = File.createTempFile("netty-", ".tmp"); // FIXED: File file = PlatformDependent.createTempFile("netty-", ".tmp", null); file.deleteOnExit(); final FileOutputStream out = new FileOutputStream(file); out.write(data); out.close(); return file; } @Test public void testCreateFromFile() throws IOException { File file = newFile(); try { testFileRegion(new DefaultFileRegion(file, 0, data.length)); } finally { file.delete(); } } @Test public void testCreateFromFileChannel() throws IOException { File file = newFile(); RandomAccessFile randomAccessFile = new RandomAccessFile(file, "r"); try { testFileRegion(new DefaultFileRegion(randomAccessFile.getChannel(), 0, data.length)); } finally { randomAccessFile.close(); file.delete(); } } private static void testFileRegion(FileRegion region) throws IOException { ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); WritableByteChannel channel = Channels.newChannel(outputStream); try { assertEquals(data.length, region.count()); assertEquals(0, region.transferred()); assertEquals(data.length, region.transferTo(channel, 0)); assertEquals(data.length, region.count()); assertEquals(data.length, region.transferred()); assertArrayEquals(data, outputStream.toByteArray()); } finally { channel.close(); } } @Test public void testTruncated() throws IOException { File file = newFile(); ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); WritableByteChannel channel = Channels.newChannel(outputStream); RandomAccessFile randomAccessFile = new RandomAccessFile(file, "rw"); try { FileRegion region = new DefaultFileRegion(randomAccessFile.getChannel(), 0, data.length); randomAccessFile.getChannel().truncate(data.length - 1024); assertEquals(data.length, region.count()); assertEquals(0, region.transferred()); assertEquals(data.length - 1024, region.transferTo(channel, 0)); assertEquals(data.length, region.count()); assertEquals(data.length - 1024, region.transferred()); try { region.transferTo(channel, data.length - 1024); fail(); } catch (IOException expected) { // expected } } finally { channel.close(); randomAccessFile.close(); file.delete(); } }} |