| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 |
| * |
| * http://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 org.apache.ftpserver.test; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.NetworkInterface; |
| import java.net.ServerSocket; |
| import java.util.ArrayList; |
| import java.util.Enumeration; |
| import java.util.List; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.commons.codec.binary.Hex; |
| import org.apache.ftpserver.util.IoUtils; |
| |
| /** |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| * |
| */ |
| public class TestUtil { |
| |
| private static final int DEFAULT_PORT = 12321; |
| |
| public static File getBaseDir() { |
| // check Maven system prop first and use if set |
| String basedir = System.getProperty("basedir"); |
| if (basedir != null) { |
| return new File(basedir); |
| } else { |
| // Are we using Eclipse based on parent directory? |
| File core = new File("core"); |
| File check = new File(core,"src"); |
| if (check.isDirectory()) { |
| return core; |
| } |
| return new File("."); |
| } |
| } |
| |
| /** |
| * Attempts to find a free port |
| * |
| * @throws IOException |
| * |
| * @throws IOException |
| */ |
| public static int findFreePort() throws IOException { |
| return findFreePort(DEFAULT_PORT); |
| } |
| |
| /** |
| * Attempts to find a free port |
| * @param initPort The first port to try, before resolving to |
| * brute force searching |
| * @throws IOException |
| * |
| * @throws IOException |
| */ |
| public static int findFreePort(int initPort) throws IOException { |
| int port = -1; |
| ServerSocket tmpSocket = null; |
| // first try the default port |
| try { |
| tmpSocket = new ServerSocket(initPort); |
| |
| port = initPort; |
| |
| System.out.println("Using default port: " + port); |
| } catch (IOException e) { |
| System.out.println("Failed to use specified port"); |
| // didn't work, try to find one dynamically |
| try { |
| int attempts = 0; |
| |
| while (port < 1024 && attempts < 2000) { |
| attempts++; |
| |
| tmpSocket = new ServerSocket(0); |
| |
| port = tmpSocket.getLocalPort(); |
| } |
| |
| } catch (IOException e1) { |
| throw new IOException( |
| "Failed to find a port to use for testing: " |
| + e1.getMessage()); |
| } |
| } finally { |
| if (tmpSocket != null) { |
| try { |
| tmpSocket.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| tmpSocket = null; |
| } |
| } |
| |
| return port; |
| } |
| |
| public static String[] getHostAddresses() throws Exception { |
| Enumeration<NetworkInterface> nifs = NetworkInterface |
| .getNetworkInterfaces(); |
| |
| List<String> hostIps = new ArrayList<String>(); |
| while (nifs.hasMoreElements()) { |
| NetworkInterface nif = nifs.nextElement(); |
| Enumeration<InetAddress> ips = nif.getInetAddresses(); |
| |
| while (ips.hasMoreElements()) { |
| InetAddress ip = ips.nextElement(); |
| if (ip instanceof java.net.Inet4Address) { |
| hostIps.add(ip.getHostAddress()); |
| } else { |
| // IPv6 not tested |
| } |
| } |
| } |
| |
| return hostIps.toArray(new String[0]); |
| } |
| |
| public static InetAddress findNonLocalhostIp() throws Exception { |
| Enumeration<NetworkInterface> nifs = NetworkInterface |
| .getNetworkInterfaces(); |
| |
| while (nifs.hasMoreElements()) { |
| NetworkInterface nif = nifs.nextElement(); |
| Enumeration<InetAddress> ips = nif.getInetAddresses(); |
| |
| while (ips.hasMoreElements()) { |
| InetAddress ip = ips.nextElement(); |
| if (ip instanceof java.net.Inet4Address |
| && !ip.isLoopbackAddress()) { |
| return ip; |
| } else { |
| // IPv6 not tested |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| public static void writeDataToFile(File file, byte[] data) |
| throws IOException { |
| FileOutputStream fos = null; |
| |
| try { |
| fos = new FileOutputStream(file); |
| |
| fos.write(data); |
| } finally { |
| IoUtils.close(fos); |
| } |
| } |
| |
| public static void assertFileEqual(byte[] expected, File file) |
| throws Exception { |
| ByteArrayOutputStream baos = null; |
| FileInputStream fis = null; |
| |
| try { |
| baos = new ByteArrayOutputStream(); |
| fis = new FileInputStream(file); |
| |
| IoUtils.copy(fis, baos, 1024); |
| |
| byte[] actual = baos.toByteArray(); |
| |
| assertArraysEqual(expected, actual); |
| } finally { |
| IoUtils.close(fis); |
| IoUtils.close(baos); |
| } |
| } |
| |
| public static void assertInArrays(Object expected, Object[] actual) { |
| boolean found = false; |
| for (int i = 0; i < actual.length; i++) { |
| Object object = actual[i]; |
| if (object.equals(expected)) { |
| found = true; |
| break; |
| } |
| } |
| |
| if (!found) { |
| TestCase.fail("Expected value not in array"); |
| } |
| } |
| |
| public static void assertArraysEqual(byte[] expected, byte[] actual) { |
| TestCase.assertEquals(new String(Hex.encodeHex(expected)), new String(Hex.encodeHex(actual))); |
| } |
| } |